A connection assembly and connection system

Abstract

The application discloses a connecting assembly and a connecting system, the connecting assembly comprises a first connecting piece and a second connecting piece, a connecting groove is formed on the left side wall or the right side wall of the first connecting piece, a first adjusting surface gradually inclined backward is formed on the front inner wall of the connecting groove, a second adjusting surface gradually inclined forward is formed on the rear inner wall of the connecting groove, the first adjusting surface and the second adjusting surface are oppositely arranged, and the first connecting piece is used for being slidably installed in the mounting groove of the cabinet body; the second connecting piece comprises a connecting part, an outer cylinder part and an elastic part arranged in the outer cylinder part, the outer cylinder part is used for being fixedly installed on one side of the layer plate, and one end of the connecting part away from the elastic part is inserted into the connecting groove. According to the connecting assembly, the suitable position of the first connecting piece on the cabinet body is adjusted through cooperation between the connecting part and the first adjusting surface or the second adjusting surface, the smooth installation between the layer plate and the cabinet body is guaranteed, and the trouble of re-opening holes on the cabinet body or the layer plate is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to a connecting assembly and a connecting system for connecting a panel and a cabinet, in particular for connecting furniture components. BACKGROUND

[0002] At present, with the continuous improvement of people's aesthetic concept, the two furniture plate parts gradually adopt a hidden form connecting piece to realize hidden form connection, thereby improving the beauty of furniture or equipment. Figure 1 The existing commonly used panel support assembly is used for detachable installation of the panel in the cabinet, and the panel support assembly cannot be observed from the outside of the cabinet or the panel, thereby realizing hidden form connection between the panel and the cabinet; meanwhile, the disassembly and assembly of the panel do not need to use additional tools, and the disassembly and assembly are convenient.

[0003] Specifically, Figures 1-2 The structure diagram and the installation diagram of the commonly used panel support assembly are shown in the figure, the panel support assembly comprises a first connecting piece 10 and a second connecting piece 20, one end of the first connecting piece 10 is provided with a connecting groove 101, the second connecting piece 20 comprises an installation part 201 and a pressing part 202, in use, the first connecting piece 10 is inserted into the installation groove 401 of the side wall of the panel 40 and is clamped with the panel 40, at the same time, the opening of the connecting groove 101 faces the outside of the panel 40, the installation part 201 of the second connecting piece 20 is inserted into the installation hole 301 of the inner wall of the cabinet 30 and is clamped with the cabinet 30, the pressing part 202 protrudes from the inner wall of the cabinet 30, then the panel 40 is placed in the cabinet 30 in an inclined manner, the pressing part 202 of the second connecting piece 20 is manually pressed to make the pressing part 202 retract into the installation part 201, finally the panel 40 is driven to move downward to make the connecting groove 101 of the first connecting piece 10 on the panel 40 move to the position of the pressing part 202, the pressing of the pressing part 202 is released to make the pressing part 202 of the second connecting piece 20 automatically inserted into the connecting groove 101, when the panel 40 is further moved downward, the pressing part 202 is locked in the connecting groove 101, thereby making the panel 40 installed in the cabinet 30 through the first connecting piece 10 and the second connecting piece 20. When the panel 40 needs to be disassembled, the panel 40 is driven to move upward to release the locking effect of the pressing part 202 in the connecting groove 101, at the same time, the inner wall of the connecting groove 101 can drive the pressing part 202 to retract into the installation part 201, so that the pressing part 202 moves out of the connecting groove 101, thereby realizing the mutual separation of the first connecting piece 10 and the second connecting piece 20, at this time, the panel 40 can be disassembled from the cabinet 30.

[0004] In order to mount the layer plate 40 in the cabinet body 30 through the layer plate holder assembly, it is necessary to process the mounting groove 401 on the side wall of the layer plate 40 and the mounting hole 301 on the inner side wall of the cabinet body 30, but the mounting groove 401 of the layer plate 40 or the mounting hole 301 of the cabinet body 30 is prone to position error, which leads to assembly failure, and the cabinet body 30 or the layer plate 40 needs to be disassembled and re-holed, which is low in installation efficiency; even needs to replace the plate material and re-hole, which is troublesome and high in cost, so that the existing layer plate holder assembly has a low market share in actual application.

[0005] In addition, in the prior art, the layer plate is mounted in the cabinet body through a layer plate holder assembly similar to the above structure, and the disassembly process is that the layer plate slides in the front-rear direction in the cabinet body, and the left and right sides of the layer plate are connected with the cabinet body through the layer plate holder assembly. The mounting mode of this kind of layer plate holder assembly is beneficial to reduce the hole precision requirement of the cabinet body or the layer plate. However, in the use process of this kind of layer plate holder assembly, the layer plate is prone to be pulled outwards under force, and the phenomenon of the layer plate being pulled out forwards is prone to occur, which has a big problem of use safety. SUMMARY

[0006] In order to solve the technical problem that the layer plate mounting fails due to the position error of the hole on the cabinet body or the layer plate in the prior art, the first aspect of the present application provides a connecting assembly for mounting a layer plate in a cabinet body, a mounting groove is formed on the left inner wall or the right inner wall of the cabinet body, and the connecting assembly comprises:

[0007] a first connecting piece, a connecting groove is formed on the left inner wall or the right inner wall of the first connecting piece, an unlocking surface in an inclined shape is formed between the upper inner wall of the connecting groove and the groove bottom of the connecting groove, a first adjusting surface gradually inclined rearward is formed on the front inner wall of the connecting groove, a second adjusting surface gradually inclined forward is formed on the rear inner wall of the connecting groove, the first adjusting surface and the second adjusting surface are oppositely spaced, and the first connecting piece is used for being slidably mounted in the mounting groove of the cabinet body; and

[0008] a second connecting piece, the second connecting piece comprises a connecting portion, an outer cylinder portion and an elastic portion arranged in the outer cylinder portion, one end of the elastic portion is connected with the outer cylinder portion, the other end of the elastic portion is connected with the connecting portion, the connecting portion reciprocates relative to the outer cylinder portion through the elastic portion, the outer cylinder portion is used for being fixedly mounted to one side of the layer plate, and one end of the connecting portion away from the elastic portion is inserted into the connecting groove;

[0009] The first adjusting surface is used for driving the first connecting piece to slide forward when the connecting part moves downward and abuts against the first adjusting surface; and the second adjusting surface is used for driving the first connecting piece to slide backward when the connecting part moves downward and abuts against the second adjusting surface.

[0010] In some embodiments, a first protruding part is formed on the upper side wall and / or the lower side wall of the first connecting piece.

[0011] In some embodiments, the first protruding part extends in the front-rear direction.

[0012] In some embodiments, the first protruding part comprises at least one inverted tooth structure or a bump structure or a block structure or a strip structure.

[0013] In some embodiments, the connecting assembly further comprises an insert, an expansion hole is formed on the left side wall or the right side wall of the first connecting piece, and the insert is used for being inserted into the expansion hole to expand the upper side wall and / or the lower side wall of the first connecting piece outward.

[0014] In some embodiments, the first connecting piece is formed with at least one first buckle, and the first buckle is protruded from one side of the first connecting piece away from the notch of the connecting groove.

[0015] In some embodiments, one end of the connecting part away from the elastic part is formed with a connecting boss, the connecting boss is inserted into the connecting groove, a fastening flange is formed on the lower inner wall of the connecting groove, and the fastening flange cooperates with the connecting boss to limit the connecting boss from being pulled out or moved out of the connecting groove.

[0016] In some embodiments, the fastening flange is formed with a clamping bump.

[0017] In some embodiments, the outer cylinder part is in a cylindrical shape or a circular truncated cone shape, and an outer thread part is formed on the outer peripheral side wall of the outer cylinder part.

[0018] The outer cylinder part has a mounting channel for accommodating the elastic part and the connecting part, the mounting channel has the same cross-sectional shape as the inner ring of the sleeve, and the outer contour of the connecting boss is adapted to the cross-sectional shape of the sleeve.

[0019] In some embodiments, the first connecting piece is in a runway shape or a waist circle shape as viewed in the left-right direction, and the upper side wall and the lower side wall of the first connecting piece are respectively in a planar shape.

[0020] In addition, the second aspect of the present application provides a connecting system, comprising:

[0021] The cabinet body is provided with a mounting groove extending in the front-rear direction on the left or right inner wall thereof;

[0022] The layer plate is provided in the cabinet body and slides in the up-down direction, and the side of the layer plate opposite to the mounting groove is provided with a mounting hole extending in the left-right direction; and

[0023] The connecting assembly as claimed in the first aspect above;

[0024] The first connecting member is slidably mounted in the mounting groove, the outer cylinder portion is inserted in the mounting hole, and the end of the connecting portion away from the elastic portion extends out of the layer plate and is inserted in the connecting groove;

[0025] When the layer plate slides downward relative to the cabinet body, the connecting portion moves downward in the connecting groove.

[0026] Compared with the prior art, the connecting assembly and the connecting system based on the technical solutions of the first aspect and the second aspect have the following beneficial effects:

[0027] The distance between the upper side of the first adjusting surface and the upper side of the second adjusting surface is greater than the width of the connecting portion, so that when there is a position error in the mounting groove of the cabinet body or the mounting hole of the layer plate, the connecting portion can be smoothly inserted into the upper side of the connecting groove. When the layer plate slides downward in the cabinet body for assembly, the connecting portion also moves downward in the connecting groove. Due to the position error of the mounting groove of the cabinet body or the mounting hole of the layer plate, the connecting portion abuts against the first adjusting surface or the second adjusting surface. During the downward movement of the connecting portion, the first connecting member is driven to slide forward or backward in the mounting groove, so as to adjust the mounting position of the first connecting member on the cabinet body, so that the connecting portion can be smoothly moved to the lower side of the connecting groove, and then the layer plate is smoothly mounted to the inner side wall of the cabinet body. In this way, the appropriate position of the first connecting member on the cabinet body is adjusted through the cooperation between the connecting portion and the first adjusting surface or the second adjusting surface, which effectively ensures that the layer plate can be smoothly mounted to the cabinet body when there is a position error in the mounting groove of the first connecting member, avoids the trouble of re-drilling holes on the cabinet body or the layer plate after disassembling the connecting assembly, and is convenient and efficient to install. The use of the connecting assembly of the present application can improve the hole tolerance rate on the cabinet body or the layer plate and ensure that the layer plate is smoothly mounted to the inner side wall of the cabinet body.

[0028] In addition, after the layer plate is mounted on the cabinet body, the second connecting member on the layer plate is limited in the front-rear direction by the first connecting member, effectively preventing the second connecting member from being pulled out in the front-rear direction with the first connecting member, thereby preventing the layer plate from being pulled out outward under stress and improving the safety in use.

[0029] To solve the technical problem of the failure of the mounting of the layer plate in the existing technology due to the position error of the opening on the cabinet or the layer plate, the third aspect of the present application provides a connecting assembly for mounting a layer plate in a cabinet, a mounting groove is formed on the left inner wall or the right inner wall of the cabinet, and the connecting assembly comprises:

[0030] a fixing member, a sliding groove extending in the front-rear direction is formed on the left wall or the right wall of the fixing member, and the fixing member is used for fixing the mounting groove in the cabinet;

[0031] a first connecting member, a connecting groove is formed on the left wall or the right wall of the first connecting member, an inclined unlocking surface is formed between the upper inner wall of the connecting groove and the groove bottom of the connecting groove, a first adjusting surface gradually inclined rearward is formed on the front inner wall of the connecting groove, a second adjusting surface gradually inclined forward is formed on the rear inner wall of the connecting groove, the first adjusting surface and the second adjusting surface are oppositely arranged, and the first connecting member is slidingly mounted in the sliding groove in the front-rear direction; and

[0032] a second connecting member, the second connecting member comprises a connecting portion, an outer cylinder portion and an elastic portion arranged in the outer cylinder portion, one end of the elastic portion is connected with the outer cylinder portion, the other end of the elastic portion is connected with the connecting portion, the connecting portion reciprocates relative to the outer cylinder portion through the elastic portion, the outer cylinder portion is used for fixedly mounting to one side of the layer plate, and one end of the connecting portion away from the elastic portion is inserted into the connecting groove.

[0033] The first adjusting surface is used for driving the first connecting member to slide forward in the sliding groove when the connecting portion moves downward and abuts against the first adjusting surface, and the second adjusting surface is used for driving the first connecting member to slide rearward in the sliding groove when the connecting portion moves downward and abuts against the second adjusting surface.

[0034] In some embodiments, the upper wall of the fixing member and / or the lower wall of the fixing member is formed with a connecting port in communication with the sliding groove, the first connecting member is formed with a second protruding portion, and a part of the second protruding portion passes through the connecting port to protrude outside the fixing member.

[0035] In some embodiments, the second protruding portion extends in the front-rear direction.

[0036] In some embodiments, the second protruding portion comprises at least one inverted tooth structure or a convex point structure or a convex block structure or a convex strip structure.

[0037] In some embodiments, the connecting assembly further comprises an insert, an expansion hole is formed on the left side wall or the right side wall of the first connecting piece, and the insert is used to be inserted into the expansion hole to expand the upper side wall and / or the lower side wall of the first connecting piece outward.

[0038] In some embodiments, at least one first fastening protrusion is formed on the outer side wall of the fixing piece.

[0039] In some embodiments, a through hole is formed on the groove bottom of the sliding groove, the first connecting piece is formed with at least one second buckle, the second buckle is protruded on the side of the first connecting piece away from the slot opening of the connecting groove, the second buckle is inserted into the through hole and is in buckling connection with the fixing piece.

[0040] In some embodiments, the first connecting piece is formed with at least one third buckle, and the third buckle is protruded on the side of the first connecting piece away from the slot opening of the connecting groove.

[0041] In some embodiments, an end of the connecting part away from the elastic part is formed with a connecting boss, the connecting boss is inserted into the connecting groove, and a fastening flange is formed on the lower inner wall of the connecting groove, the fastening flange is in limiting connection with the connecting boss to limit the connecting boss from being pulled out or moved out of the connecting groove.

[0042] In some embodiments, the fastening flange is formed with a clamping protrusion.

[0043] In some embodiments, the outer cylinder part is in a cylindrical or circular truncated shape, and an outer thread part is formed on the outer peripheral side wall of the outer cylinder part.

[0044] The outer cylinder part has a mounting channel for accommodating the elastic part and the connecting part, the mounting channel has the same cross-sectional shape as the cross-sectional shape of the inner ring of the sleeve, and the cross-sectional shape of the connecting boss is adapted to the cross-sectional shape of the sleeve.

[0045] In some embodiments, as viewed in the left-right direction, the sliding groove is in a runway shape or a waist circle shape, the upper inner wall and the lower inner wall of the sliding groove are respectively in a planar shape, and the shape of the first connecting piece is adapted to the shape of the sliding groove.

[0046] In addition, the fourth aspect of the present application provides a connecting system, comprising:

[0047] A cabinet body, an installation groove is formed on the left inner wall or the right inner wall of the cabinet body;

[0048] A layer plate, the layer plate is arranged in the cabinet body and slides in the up-down direction, and an installation hole extending in the left-right direction is formed on the side of the layer plate opposite to the installation groove.

[0049] The connecting assembly as described in the third aspect of the present application above;

[0050] The fixing member is fixedly installed in the installation slot, the outer cylinder portion is inserted into the installation hole, and the end of the connecting portion away from the elastic portion protrudes outside the layer plate and is inserted into the connecting slot.

[0051] When the layer plate slides downward relative to the cabinet, the connecting portion moves downward in the connecting slot.

[0052] Based on the technical solutions of the third aspect and the fourth aspect above, the connecting assembly and the connecting system of the present application have the following beneficial effects compared with the prior art:

[0053] The interval distance between the upper side of the first adjusting surface and the upper side of the second adjusting surface is greater than the width of the connecting portion, so that when there is a position error in the installation slot of the cabinet or the installation hole of the layer plate, the connecting portion can be smoothly inserted into the upper side of the connecting slot. When the layer plate slides downward in the cabinet for assembly, the connecting portion also moves downward in the connecting slot. Due to the position error of the installation slot of the cabinet or the installation hole of the layer plate, the connecting portion abuts against the first adjusting surface or the second adjusting surface. During the downward movement of the connecting portion, the first connecting member is driven to slide forward or backward in the sliding groove (equivalent to driving the first connecting member to slide forward or backward on the cabinet), thereby adjusting the installation position of the first connecting member on the cabinet, so that the connecting portion can be smoothly moved to the lower side of the connecting slot, and then the layer plate is smoothly installed on the inner side wall of the cabinet. In this way, the appropriate position of the first connecting member on the cabinet is adjusted through the cooperation between the connecting portion and the first adjusting surface or the second adjusting surface, which effectively ensures that the layer plate can be smoothly installed on the cabinet even when there is a position error in the installation slot of the first connecting member, avoids the trouble of re-drilling holes on the cabinet or the layer plate after disassembling the connecting assembly, and is convenient and efficient to install. The use of the connecting assembly of the present application can improve the tolerance rate of the holes on the cabinet or the layer plate and ensure that the layer plate is smoothly installed on the inner side wall of the cabinet.

[0054] In addition, after the layer plate is installed on the cabinet, the second connecting member on the layer plate is limited in the forward and backward directions by the first connecting member, effectively preventing the second connecting member from being pulled out in the forward and backward directions with the first connecting member, thereby preventing the layer plate from being pulled out outward under stress and improving the safety in use.

[0055] In order to solve the technical problem that the layer plate supporting assembly in the prior art fails to be installed due to the position error of the holes on the cabinet or the layer plate, the fifth aspect of the present application provides a connecting assembly for installing a layer plate in a cabinet, a first embedded slot is formed on the left inner wall or the right inner wall of the cabinet, a second embedded slot is formed on the outer side wall of the layer plate, and the connecting assembly comprises:

[0056] The first connecting piece is formed with a connecting groove on the left or right side wall, an unlocking surface is formed between the upper inner wall of the connecting groove and the groove bottom, a first adjusting surface gradually inclined rearward is formed on the front inner wall of the connecting groove, a second adjusting surface gradually inclined forward is formed on the rear inner wall of the connecting groove, the first adjusting surface and the second adjusting surface are oppositely arranged, and the first connecting piece is fixedly installed in the first embedded groove of the cabinet body.

[0057] The second connecting piece includes a connecting portion, a sliding portion and an elastic portion arranged in the sliding portion, one end of the elastic portion is connected with the sliding portion, the other end of the elastic portion is connected with the connecting portion, the connecting portion reciprocates relative to the sliding portion through the elastic portion, the sliding portion is slidably installed in the second embedded groove of the layer plate, and one end of the connecting portion away from the elastic portion is inserted into the connecting groove.

[0058] The first adjusting surface drives the second connecting piece to slide rearward when the connecting portion moves downward and abuts against the first adjusting surface, and the second adjusting surface drives the second connecting piece to slide forward when the connecting portion moves downward and abuts against the second adjusting surface.

[0059] In some embodiments, at least one fastening protrusion is formed on the outer side wall of the first connecting piece.

[0060] In some embodiments, the first connecting piece is in a circular shape as viewed in the left-right direction.

[0061] A positioning portion is formed on the outer side wall of the first connecting piece, or

[0062] One side of the first connecting piece away from the slot opening of the connecting groove is formed with a positioning portion, and the central axis of the positioning portion is not on the same straight line as the central axis of the first connecting piece.

[0063] In some embodiments, one end of the connecting portion away from the elastic portion is formed with a connecting boss, and the connecting boss is inserted into the connecting groove; a fastening flange is formed on the lower inner wall of the connecting groove, and the fastening flange cooperates with the connecting boss to limit the connecting boss from being pulled out or moved out of the connecting groove.

[0064] In some embodiments, the fastening flange is formed with a clamping protrusion.

[0065] In some embodiments, a third protruding portion is formed on the upper side wall and / or the lower side wall of the sliding portion.

[0066] In some embodiments, the third protruding part extends in the front-rear direction.

[0067] In some embodiments, the third protruding part comprises at least one inverted tooth structure or bump structure or block structure or strip structure.

[0068] In some embodiments, the sliding part is in a runway shape or a waist-round shape as viewed in the left-right direction, and the upper side wall and the lower side wall of the sliding part are respectively in a planar shape.

[0069] In addition, the sixth aspect of the present application provides a connecting system, comprising:

[0070] a cabinet body, a first embedded slot being formed on the left inner wall or the right inner wall of the cabinet body;

[0071] a layer plate, the layer plate being arranged in the cabinet body and sliding in the up-down direction, a second embedded slot extending in the front-rear direction being formed on the side of the layer plate opposite to the first embedded slot; and

[0072] the connecting assembly as described in the fifth aspect of the present application above;

[0073] wherein the first connecting piece is fixedly installed in the first embedded slot, the sliding part is slidably installed in the second embedded slot, and the end of the connecting part away from the elastic part protrudes out of the layer plate and is inserted into the connecting slot;

[0074] when the layer plate slides downward relative to the cabinet body, the connecting part moves downward in the connecting slot.

[0075] Based on the technical solutions of the fifth aspect and the sixth aspect above, the connecting assembly and the connecting system of the present application have the following beneficial effects compared with the prior art:

[0076] The interval distance between the upper side of the first adjusting surface and the upper side of the second adjusting surface is larger than the width of the connecting part, so that the connecting part can be smoothly inserted into the upper side of the connecting groove when there is a position error in the first embedding groove of the cabinet or the second embedding groove of the layer plate. When the layer plate is slid downward in the cabinet for assembly, the connecting part also moves downward in the connecting groove. Due to the position error of the first embedding groove of the cabinet or the second embedding groove of the layer plate, the connecting part abuts against the first adjusting surface or the second adjusting surface. During the downward movement of the connecting part, the inclined first adjusting surface or the second adjusting surface drives the second connecting part to slide forward or backward in the second embedding groove, so as to adjust the installation position of the second connecting part on the layer plate, so that the connecting part can be smoothly moved to the lower inner wall of the connecting groove, and the layer plate is smoothly installed on the inner side wall of the cabinet. In this way, the appropriate position of the second connecting part on the layer plate is adjusted by the cooperation between the first adjusting surface or the second adjusting surface and the connecting part, which effectively ensures that the layer plate can be smoothly installed on the cabinet when there is a position error in the second embedding groove of the second connecting part, avoids the trouble of re-drilling holes on the cabinet or the layer plate after disassembling the connecting assembly, and is convenient and efficient to install. The connection assembly of the application can improve the tolerance rate of the holes on the cabinet or the layer plate, and ensure that the layer plate is smoothly installed on the inner side wall of the cabinet.

[0077] In addition, after the layer plate is installed on the cabinet, the second connecting part on the layer plate is limited by the first connecting part in the front-rear direction, effectively preventing the second connecting part from being pulled out of the first connecting part in the front-rear direction, thereby preventing the layer plate from being pulled outwards under stress, improving the safety in use.

[0078] In order to solve the technical problem that the layer plate installation fails due to the position error of the holes on the cabinet or the layer plate in the existing technology, the seventh aspect of the application provides a connecting assembly for installing a layer plate in a cabinet, a first embedding groove is formed on the left inner wall or the right inner wall of the cabinet, a second embedding groove is formed on the outer side wall of the layer plate, and the connecting assembly comprises:

[0079] A first connecting part, a connecting groove is formed on the left side wall or the right side wall of the first connecting part, an unlocking surface in an inclined shape is formed between the upper inner wall of the connecting groove and the groove bottom of the connecting groove, a first adjusting surface gradually inclined rearward is formed on the front inner wall of the connecting groove, and a second adjusting surface gradually inclined forward is formed on the rear inner wall of the connecting groove, the first adjusting surface and the second adjusting surface are oppositely arranged, and the first connecting part is used for being slidably installed in the first embedding groove of the cabinet; and

[0080] The second connecting piece comprises a connecting portion, a sliding portion, and an elastic portion arranged in the sliding portion. One end of the elastic portion is connected with the sliding portion, and the other end of the elastic portion is connected with the connecting portion. The connecting portion is reciprocally telescopic relative to the sliding portion through the elastic portion. The sliding portion is used for being slidably arranged in the second embedding groove of the layer plate. One end of the connecting portion, which is away from the elastic portion, is inserted into the connecting groove.

[0081] The first adjusting surface is used for driving the first connecting piece to slide forward and / or the second connecting piece to slide backward when the connecting portion moves downward and abuts against the first adjusting surface.

[0082] The second adjusting surface is used for driving the first connecting piece to slide backward and / or the second connecting piece to slide forward when the connecting portion moves downward and abuts against the second adjusting surface.

[0083] In some embodiments, a first protruding portion is formed on the upper side wall and / or the lower side wall of the first connecting piece.

[0084] In some embodiments, the connecting assembly further comprises an insert. An expansion hole is formed on the left side wall or the right side wall of the first connecting piece. The insert is used for being inserted into the expansion hole to expand the upper side wall and / or the lower side wall of the first connecting piece outward.

[0085] In some embodiments, one end of the connecting portion, which is away from the elastic portion, is provided with a connecting boss. The connecting boss is inserted into the connecting groove. A fastening flange is formed on the lower inner wall of the connecting groove. The fastening flange cooperates with the connecting boss to limit the connecting boss from being pulled out or moved out of the connecting groove.

[0086] In some embodiments, the fastening flange is provided with a clamping protrusion.

[0087] In some embodiments, the first connecting piece has a runway shape or a waist-round shape when viewed in the left-right direction. The upper side wall and the lower side wall of the first connecting piece respectively have a planar shape.

[0088] In some embodiments, a third protruding portion is formed on the upper side wall and / or the lower side wall of the sliding portion.

[0089] In some embodiments, the sliding portion has a runway shape or a waist-round shape when viewed in the left-right direction. The upper side wall and the lower side wall of the sliding portion respectively have a planar shape.

[0090] In addition, the eighth aspect of the present application provides a connecting system, which comprises:

[0091] The cabinet body is provided with a first embedding groove extending in the front-rear direction on the left or right inner wall thereof;

[0092] The layer plate is provided in the cabinet body and slides in the up-down direction, and the side of the layer plate opposite to the first embedding groove is provided with a second embedding groove extending in the front-rear direction; and

[0093] The connecting assembly as described in the seventh aspect of the present application above;

[0094] The first connecting member is slidably mounted in the first embedding groove, the sliding part is slidably mounted in the second embedding groove, and the end of the connecting part away from the elastic part extends out of the layer plate and is inserted into the connecting groove;

[0095] When the layer plate slides downward relative to the cabinet body, the connecting part moves downward in the connecting groove.

[0096] Based on the technical solutions of the seventh and eighth aspects above, the connecting assembly and the connecting system of the present application have the following beneficial effects compared with the prior art:

[0097] The distance between the upper side of the first adjusting surface and the upper side of the second adjusting surface is greater than the width of the connecting part, so that when there is a position error in the first embedding groove of the cabinet body or the second embedding groove of the layer plate, the connecting part can be smoothly inserted into the upper side of the connecting groove. When the layer plate slides downward in the cabinet body for assembly, the connecting part also moves downward in the connecting groove. Due to the position error of the first embedding groove of the cabinet body or the second embedding groove of the layer plate, the connecting part abuts against the first adjusting surface or the second adjusting surface. During the downward movement of the connecting part, the connecting part drives the first connecting member to slide forward or backward in the first embedding groove, thereby adjusting the position of the first connecting member on the cabinet body, or the inclined first adjusting surface or second adjusting surface drives the second connecting member to slide forward or backward in the second embedding groove, thereby adjusting the mounting position of the second connecting member on the layer plate, so that the connecting part can be smoothly moved to the lower side of the connecting groove, and the layer plate can be smoothly mounted to the inner side wall of the cabinet body, effectively ensuring that the layer plate can be smoothly mounted to the cabinet body when there is a position error in the first embedding groove of the first connecting member or in the second embedding groove of the second connecting member, avoiding the trouble of re-drilling holes in the cabinet body or the layer plate after disassembling the connecting assembly, and improving the installation convenience and efficiency. The use of the connecting assembly of the present application can improve the tolerance rate of the holes in the cabinet body or the layer plate and ensure that the layer plate can be smoothly mounted to the inner side wall of the cabinet body.

[0098] In addition, after the layer plate is mounted in the cabinet body, the second connecting member on the layer plate is limited in the front-rear direction by the first connecting member, effectively preventing the second connecting member from being pulled out of the first connecting member in the front-rear direction, thereby preventing the layer plate from being pulled outwards under stress and improving the safety in use. Attached Figure Description

[0099] Figure 1 This is a structural schematic diagram of a shelf support assembly in the prior art;

[0100] Figure 2 This is a schematic diagram showing the connection between the shelves and the cabinet body in existing technology via shelf support components;

[0101] Figure 3 This is a schematic diagram of the connection component of Embodiment 1 of the present invention, in which the connection part is located on the upper side of the connection groove;

[0102] Figure 4 This is a schematic diagram of the connection component of Embodiment 1 of the present invention, in which the connection part is located on the lower side of the connection groove;

[0103] Figure 5 This is a schematic diagram of the first structure of the first connector in Embodiment 1 of the present invention;

[0104] Figure 6 yes Figure 5 A structural diagram from another angle;

[0105] Figure 7 yes Figure 6 Sectional view along the middle AA;

[0106] Figure 8 This is a schematic diagram of a second structure of the first connector in Embodiment 1 of the present invention;

[0107] Figure 9 This is a schematic diagram of the third structure of the first connector in Embodiment 1 of the present invention;

[0108] Figure 10 This is a schematic diagram of the fourth structure of the first connector in Embodiment 1 of the present invention;

[0109] Figure 11 This is a schematic diagram of the fifth structure of the first connector in Embodiment 1 of the present invention;

[0110] Figure 12 This is a schematic diagram of the structure of the second connector in Embodiment 1 of the present invention;

[0111] Figure 13 yes Figure 12 A half-section diagram;

[0112] Figure 14 yes Figure 13 A diagram illustrating the breakdown;

[0113] Figure 15 This is a schematic diagram of the outer cylinder portion of the second connector in Embodiment 1 of the present invention;

[0114] Figure 16 is another structure diagram of the outer cylinder part of the second connecting piece of the embodiment 1 of the present application;

[0115] Figure 17 is a structure diagram of the first connecting piece of the embodiment 1 of the present application installed on the cabinet body; Figure 11

[0116] Figure 18 is a sectional view along B-B of the embodiment 1 of the present application; Figure 17

[0117] Figure 19 is a split diagram of the connecting assembly of the embodiment 1 of the present application connecting the layer plate and the cabinet body;

[0118] Figure 20 is an assembly diagram between the layer plate and the cabinet body during the process of the layer plate sliding downward in the cabinet body of the embodiment 1 of the present application;

[0119] Figure 21 is an enlarged view of C part of the embodiment 1 of the present application; Figure 20

[0120] Figure 22 is an enlarged view of D part of the embodiment 1 of the present application; Figure 20

[0121] Figure 23 is an enlarged view of E part of the embodiment 1 of the present application; Figure 20

[0122] Figure 24 is an enlarged view of F part of the embodiment 1 of the present application; Figure 20

[0123] Figure 25 is a first connecting diagram of the first connecting piece and the fixing piece of the embodiment 2 of the present application;

[0124] Figure 26 is a split diagram of the embodiment 2 of the present application; Figure 25

[0125] Figure 27 is a structure diagram of the first connecting piece of the embodiment 2 of the present application; Figure 26

[0126] Figure 28 is a structure diagram of the fixing piece of the embodiment 2 of the present application; Figure 26

[0127] Figure 29 is a second split diagram of the first connecting piece and the fixing piece of the embodiment 2 of the present application;

[0128] Figure 30 is a structure diagram of the first connecting piece of the embodiment 2 of the present application; Figure 29

[0129] Figure 31 is​​​​​​​​​​Figure 31 Structure diagram of another angle;

[0130] Figure 32 Structure diagram of the first connecting piece of Embodiment 2 of the present application;

[0131] Figure 33 Structure diagram of the fixing piece of Embodiment 2 of the present application, which is used in cooperation with the first connecting piece of Figure 32

[0132] Figure 34 Third connecting diagram of the first connecting piece and the fixing piece of Embodiment 2 of the present application;

[0133] Figure 35 Structure diagram of the fixing piece of Figure 34

[0134] Figure 36 Structure diagram of the second connecting piece of Embodiment 2 of the present application;

[0135] Figure 37 Splitting diagram of Figure 36

[0136] Figure 38 Structure diagram of the first connecting piece of Embodiment 2 of the present application installed on the cabinet body;

[0137] Figure 39 Splitting diagram of the layer plate connected with the cabinet body through the connecting assembly of Embodiment 2 of the present application;

[0138] Figure 40 Connecting diagram of the layer plate connected with the cabinet body through the connecting assembly of Embodiment 2 of the present application;

[0139] Figure 41 Enlarged view of G part of Figure 40

[0140] Sixth structure of the first connecting piece and the plug of Embodiment 1 of the present application; Figure 42

[0141] Seventh structure of the first connecting piece and the plug of Embodiment 1 of the present application; Figure 43

[0142] Eighth structure of the first connecting piece and the plug of Embodiment 1 of the present application; Figure 44

[0143] Ninth structure of the first connecting piece and the plug of Embodiment 1 of the present application; Figure 45

[0144] Figure 46 ​​​​is another split schematic view of the layer plate of the embodiment 1 of the present application connected with the cabinet body through the connecting assembly;

[0145] Figure 47 is the fourth split schematic view of the first connecting piece and the fixing piece of the embodiment 2 of the present application;

[0146] Figure 48 is the first structure schematic view of the first connecting piece of the embodiment 3 of the present application;

[0147] Figure 49 is the second structure schematic view of the first connecting piece of the embodiment 3 of the present application;

[0148] Figure 50 is Figure 49 the structure schematic view of the first connecting piece from another perspective;

[0149] Figure 51 is Figure 49 the structure schematic view of the first connecting piece from another perspective;

[0150] Figure 52 is the third structure schematic view of the first connecting piece of the embodiment 3 of the present application;

[0151] Figure 53 is the structure schematic view of the second connecting piece of the embodiment 3 of the present application;

[0152] Figure 54 is Figure 53 the half-section schematic view of the second connecting piece;

[0153] Figure 55 is Figure 53 the structure schematic view of the second connecting piece from another perspective;

[0154] Figure 56 is a split schematic view of the layer plate of the embodiment 3 of the present application connected with the cabinet body through the connecting assembly;

[0155] Figure 57 is Figure 56 the sectional view of the layer plate connected with the cabinet body through the connecting assembly;

[0156] Figure 58 is the connection schematic view of the connecting assembly of the embodiment 4 of the present application;

[0157] Figure 59 is the structure schematic view of the first connecting piece of the embodiment 4 of the present application;

[0158] Figure 60 is the half-section schematic view of the second connecting piece of the embodiment 4 of the present application;

[0159] Figure 61Figure 4 is a split schematic view of the cabinet body and the layer board of the embodiment 4 of the present application connected by the connecting assembly. DETAILED DESCRIPTION

[0160] The specific embodiments of the present application will be further described in conjunction with the drawings and examples. The following examples are used to illustrate the present application but not to limit the scope of the present application.

[0161] In the description of the present application, it is to be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0162] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "plurality" is two or more, unless otherwise specifically limited.

[0163] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication or interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0164] In the present application, unless otherwise specifically defined and limited, the first feature "above" or "below" the second feature can include the first and second features directly contacting, or the first and second features not directly contacting but contacting through another feature between them. Moreover, the first feature "above", "above" and "above" the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes the first feature directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0165] In the present application, the cabinet body is for example a furniture cabinet or a wardrobe or a cupboard or a chest or a book cabinet, etc., in order to improve the space utilization of the cabinet body, at least one layer plate is arranged in the cabinet body, wherein the present application does not limit the specific material of the cabinet body and the layer plate, and the material is for example wood, plastic, metal, or high polymer synthetic material, etc. or a combination thereof, when assembled, the opposite two sides of the layer plate are respectively connected with the opposite two inner side walls of the cabinet body through the connecting assembly, so that the layer plate is installed in the cabinet body. In addition, in the present application, the layer plate and the cabinet plate or the side plate are relative concepts, that is, the layer plate recorded in the embodiment of the present application is only a detachable plate opposite to the cabinet plate or the side plate, and the person skilled in the art can convert the positions of the layer plate and the cabinet plate or the side plate according to the actual use condition, that is, the first connecting piece of the present application is installed on the layer plate, the second connecting piece is installed on the inner side wall of the cabinet body, and the cabinet plate or the side plate is detachably arranged on the layer plate through the connecting assembly, so that the conversion of the layer plate and the cabinet plate or the side plate belongs to the conventional technical means replacement.

[0166] In some specific embodiments, the left and right sides of the layer plate are respectively connected with the left and right inner side walls of the cabinet body through the connecting assembly, as shown in Figures 17-20 、 Figures 38-39 , wherein the left side of the present application is located on the left side of the user when the user uses the cabinet body, the right side is located on the right side of the user when the user uses the cabinet body, the front side is the end of the cabinet body close to the user, and the rear side is the end of the cabinet body away from the user, so the front-rear direction is from the end of the cabinet body close to the user to the end of the cabinet body away from the user. It should be noted that in the present application, the left side and the right side are also relative concepts, and in addition, it should be noted that the present application does not limit the layer plate to be connected with the cabinet body only through the connecting assembly on the left and right sides, and the person skilled in the art can change the position or number of the connecting assembly on the layer plate according to the specific use scene, for example, the layer plate is connected with the cabinet body only through the connecting assembly on the left side or the connecting assembly on the right side, or the connecting assembly is arranged on the rear side of the layer plate, and the layer plate is connected with the cabinet body through the connecting assembly on the rear side.

[0167] Embodiment 1

[0168] Please refer to Figures 3-24The first connecting piece 1 is installed on the inner side wall of the cabinet 4, the second connecting piece 2 is installed on the side wall of the layer plate 5, the layer plate 5 is placed in the cabinet 4 and is driven to move up and down in the cabinet 4, so that the first connecting piece 1 and the second connecting piece 2 are connected with each other, and then the layer plate 5 is connected with the cabinet 4 in a hidden manner through the connecting assembly, the connection is firm and reliable, and the detachability is high; meanwhile, during the assembly of the layer plate 5 in the cabinet 4, the installation position of the first connecting piece 1 on the cabinet 4 is adjusted through the second connecting piece 2, so that the first connecting piece 1 and the second connecting piece 2 are smoothly assembled, the layer plate 5 is prevented from being assembled unsuccessfully due to the position error of the hole on the cabinet 4 or the layer plate 5, and the installation is convenient and efficient.

[0169] Further, the specific structure of the connecting assembly of the embodiment 1 of the present application is described in detail as follows. Figures 3-16 As shown in the figure, the connecting assembly comprises the first connecting piece 1 and the second connecting piece 2, the left side wall or the right side wall of the first connecting piece 1 is formed with a connecting groove 11, an unlocking surface 12 in an inclined shape is formed between the upper inner wall of the connecting groove 11 and the groove bottom of the connecting groove 11, a first adjusting surface 13 gradually inclined to the rear and downward is formed on the front inner wall of the connecting groove 11, a second adjusting surface 14 gradually inclined to the front and downward is formed on the rear inner wall of the connecting groove 11, the first adjusting surface 13 and the second adjusting surface 14 are oppositely and spaced apart, and the first connecting piece 1 is used for being slidably installed in the installation groove 41 of the cabinet 4; the second connecting piece 2 comprises a connecting part 21, an outer cylinder part 22 and an elastic part 23 arranged in the outer cylinder part 22, one end of the elastic part 23 is connected with the outer cylinder part 22, the other end of the elastic part 23 is connected with the connecting part 21, the connecting part 21 reciprocatingly extends and retracts relative to the outer cylinder part 22 through the elastic part 23, the outer cylinder part 22 is used for being fixedly installed on one side of the layer plate 5, and one end of the connecting part 21 away from the elastic part 23 is inserted into the connecting groove 11; wherein the first adjusting surface 13 is used for driving the first connecting piece 1 to slide forward when the connecting part 21 moves downward and abuts against the first adjusting surface 13; and the second adjusting surface 14 is used for driving the first connecting piece 1 to slide backward when the connecting part 21 moves downward and abuts against the second adjusting surface 14.

[0170] It is understood that the connecting groove 11 can be located on the left side wall of the first connector 1, or the connecting groove 11 can be located on the right side wall of the first connector 1. The specific position of the connecting groove 11 on the first connector 1 is designed to adapt to the side where the shelf 5 is connected to the cabinet 4. For example, when the left side wall of the shelf 5 is connected to the left inner wall of the cabinet 4, the connecting groove 11 is located on the right side wall of the first connector 1; or, for another example, when the right side wall of the shelf 5 is connected to the right inner wall of the cabinet 4, the connecting groove 11 is located on the left side wall of the first connector 1. In some embodiments, the two first connectors 1 are respectively used to be installed on the left and right inner side walls of the cabinet 4 and are arranged symmetrically about the connecting groove 11. The left and right sides of the shelf 5 are respectively connected to the first connectors 1 on the left and right sides of the cabinet 4 through the second connectors 2, thereby installing the shelf 5 inside the cabinet 4.

[0171] In order for the first connector 1 to be installed on the left or right inner wall of the cabinet 4, such as Figure 19 As shown, a mounting groove 41 extending in the front-to-back direction is first processed on the inner wall of the left or right side of the cabinet 4. The shape of the mounting groove 41 matches the shape of the first connector 1. The mounting groove 41 is specifically processed by drilling. The distance between the front and back sides of the mounting groove 41 is greater than the distance between the front and back sides of the first connector 1. Thus, when the first connector 1 is embedded in the mounting groove 41, the first connector 1 can slide in the front-to-back direction within the mounting groove 41. Through the interaction between the second connector 2 and the first connector 1, the position of the first connector 1 on the cabinet 4 is adjusted to facilitate smooth assembly between the second connector 2 and the first connector 1. This avoids assembly errors in the position of the first connector 1 after it is fixed in the mounting groove 41, which would make assembly difficult and require re-drilling, or avoids the need to replace the cabinet 4 or shelf 5 due to drilling errors.

[0172] Similarly, in order to install the outer cylindrical part 22 of the second connector 2 onto the left or right side wall of the shelf 5, the left and / or right side walls of the shelf 5 are drilled with mounting holes 51. The shape and size of the mounting holes 51 are adapted to the shape and size of the outer cylindrical part 22. Under the action of external force, the outer cylindrical part 22 of the second connector 2 is inserted and secured in the mounting holes 51. After assembly, the second connector 2 is difficult to pull out from the mounting holes 51 (a large pulling force is required to pull the second connector 2 out from the mounting holes 51), thereby making the second connector 2 firmly connected to the shelf 5. The shelf 5 is connected to the first connector 1 through the cooperation between the second connector 2 and the first connector 1, thereby making the shelf 5 firmly installed in the cabinet 4.

[0173] It should be noted that, as Figures 5-11As shown, the first adjusting surface 13 can be an inclined planar surface or an arc-shaped concave surface or an arc-shaped convex surface or a wavy surface, as long as the first adjusting surface 13 is gradually inclined from front to back and bottom. Similarly, the second adjusting surface 14 can be an inclined planar surface or an arc-shaped concave surface or an arc-shaped convex surface or a wavy surface, as long as the second adjusting surface 14 is gradually inclined from back to front and bottom.

[0174] Further, as shown in Figure 6 , Figure 12 In order to smoothly insert the connecting portion 21 into the connecting groove 11, the interval distance L between the upper side of the first adjusting surface 13 and the upper side of the second adjusting surface 14 is greater than the width W of the connecting portion 21, for example, L-W≥0.5mm. Thus, when the layer plate 5 moves downward in the cabinet body 4, the connecting portion 21 can easily insert into the gap between the upper side of the first adjusting surface 13 and the upper side of the second adjusting surface 14, so that the connecting portion 21 is smoothly inserted into the upper side of the connecting groove 11 and further moves downward. When there is an error in the installation position of the first connecting piece 1 in the installation groove 41 (or there is an error in the position of the second connecting piece 2 on the layer plate 5), the downwardly moving connecting portion 21 will abut against the first adjusting surface 13 or the second adjusting surface 14. When the connecting portion 21 moves downward in the connecting groove 11 and abuts against the first adjusting surface 13, the connecting portion 21 will drive the first connecting piece 1 to slide forward in the installation groove 41, or when the connecting portion 21 moves downward in the connecting groove 11 and abuts against the second adjusting surface 14, the connecting portion 21 will drive the second connecting piece 2 to slide backward in the installation groove 41, so as to adjust the first connecting piece 1 to the appropriate position, so that the connecting portion 21 is smoothly moved to the lower side of the connecting groove 11, and the assembly process of the layer plate 5 in the cabinet body 4 is completed. In addition, it should be noted that when there is no error in the installation position of the first connecting piece 1 in the installation groove 41 (or there is no error in the position of the second connecting piece 2 on the layer plate 5), the connecting portion 21 moves downward in the connecting groove 11 and does not contact the first adjusting surface 13 or the second adjusting surface 14. At this time, the connecting portion 21 can be directly moved to the lower side of the connecting groove 11, and the assembly process of the layer plate 5 in the cabinet body 4 is completed.

[0175] Thus, the appropriate position of the first connecting piece 1 on the cabinet body 4 is adjusted by the cooperation between the connecting portion 21 and the first adjusting surface 13 or the second adjusting surface 14, which effectively ensures that the layer plate 5 can be smoothly installed on the cabinet body 4 when there is an error in the position of the first connecting piece 1 in the installation groove 41, avoiding the trouble of re-drilling holes on the cabinet body 4 or the layer plate 5 after disassembling the connecting assembly, and achieving convenient installation and high efficiency. Thus, the connecting assembly of the embodiment 1 of the present application can improve the hole tolerance rate on the cabinet body 4 or the layer plate 5, and ensure that the layer plate 5 is smoothly installed on the inner side wall of the cabinet body 4.

[0176] In some embodiments, as Figures 5-9As shown, the upper side wall and / or the lower side wall of the first connecting piece 1 of the embodiment 1 of the present application is formed with a first protruding part 15. Specifically, the upper side wall of the first connecting piece 1 is formed with the first protruding part 15, or the lower side wall of the first connecting piece 1 is formed with the first protruding part 15, or both the upper and lower side walls of the first connecting piece 1 are formed with the first protruding part 15. The first protruding part 15 can be integrally formed on the first connecting piece 1, for example, the first protruding part 15 and the first connecting piece 1 are formed into an integrated component through an injection molding process, the overall structural strength is larger, and the connection is stable and reliable. Among them, the embodiment 1 of the present application does not limit the specific structure or shape of the first protruding part 15, that is, the first protruding part 15 includes a reverse tooth structure or a protruding point structure or a protruding block structure or a protruding strip structure, and the number of the reverse tooth structure or the protruding point structure or the protruding block structure or the protruding strip structure can be one or more. In this way, the first protruding part 15 formed on the upper side wall and / or the lower side wall of the first connecting piece 1 can increase the frictional force of the first connecting piece 1 moving in the left-right direction in the mounting groove 41, thereby limiting the transverse separation of the layer plate 5 and the cabinet body 4.

[0177] Further, in order to ensure that the first connecting piece 1 slides in the front-rear direction in the mounting groove 41, the first protruding part 15 extends in the front-rear direction, so that the fastening force of the first protruding part 15 on the first connecting piece 1 is in the left-right direction, the frictional force of the first connecting piece 1 in the front-rear direction in the mounting groove 41 is smaller, and the smooth sliding of the first connecting piece 1 in the front-rear direction is ensured.

[0178] Specifically, for example Figures 5-9 As shown, the upper and lower side walls of the first connecting piece 1 are respectively formed with the first protruding part 15, the first protruding part 15 includes a plurality of reverse tooth structures, and the plurality of reverse tooth structures are sequentially and spaced apart in the left-right direction. Among them, the reverse tooth structure is spaced apart from the upper side wall or the lower side wall of the first connecting piece 1 and is inclined, so that when the first connecting piece 1 is installed into the mounting groove 41, the reverse tooth structure is elastically deformed and generates a pressing force on the upper inner wall and / or the lower inner wall of the mounting groove 41, thereby increasing the frictional force of the first connecting piece 1 moving in the left-right direction in the mounting groove 41, thereby increasing the transverse tensile load capacity between the layer plate 5 and the cabinet body 4, and improving the connection firmness between the layer plate 5 and the cabinet body 4.

[0179] It needs to be further explained that when the above-mentioned first connecting piece 1 is inserted into the mounting groove 41 of the cabinet body 4, the first protruding part 15 abuts against the inner side wall of the mounting groove 41, so that the first connecting piece 1 is limited in the mounting groove 41 and is difficult to be pulled out.

[0180] In some other embodiments, after the first connector 1 of the present embodiment 1 is inserted into the mounting groove 41, a gap exists between the first protruding portion 15 and the inner side wall of the mounting groove 41, which facilitates the easy dismounting and re-mounting of the first connector 1 when the first connector 1 is mounted in the mounting groove 41 in the opposite direction (e.g., the up-down direction is opposite). When the first connector 1 of the present embodiment is located in the mounting groove 41, the first connector 1 is easily pulled out from the mounting groove 41, which results in the absence of the transverse tensile resistance between the layer plate 5 and the cabinet body 4. Therefore, as shown in Figures 42-46 , the connecting assembly of the present embodiment further comprises an insert 6, and the left side wall or the right side wall of the first connector 1 is formed with an expansion hole 110, and the insert 6 is used to be inserted into the expansion hole 110 to expand the upper side wall and / or the lower side wall of the first connector 1 outward. It can be understood that the number of the expansion hole 110 can be one or more, and the number of the insert 6 is the same as the number of the expansion hole 110. For example, Figure 42 , Figure 44 , Figure 45 , when the number of the expansion hole 110 is one, the expansion hole 110 is located at the front side or the rear side of the connecting groove 11, and at this time, the number of the insert 6 is one; and for example, Figure 43 , when the number of the expansion hole 110 is two, the two expansion holes 110 are respectively located at the front and rear sides of the connecting groove 11, and at this time, the number of the insert 6 is two, and the two inserts 6 are respectively and one-to-one inserted into the two expansion holes 110. Among them, the first connector 1 has a certain elasticity, and specifically, for example, it is a plastic part, when the insert 6 is inserted into the expansion hole 110 or the insert 6 is rotated by a certain angle in the expansion hole 110, the expansion hole 110 will be elastically deformed to expand the upper side wall and / or the lower side wall of the first connector 1 outward.

[0181] Specifically, for example, Figure 42 , Figure 43 , the diameter of the expansion hole 110 gradually decreases, and the inner side wall of the expansion hole 110 can have an internal thread structure, when the insert 6 is screwed and rotated to be inserted into the expansion hole 110 (for example, the insert 6 is driven clockwise), the upper side wall and / or the lower side wall of the first connector 1 expands outward, so that the first protruding portion 15 abuts against the inner side wall of the connecting groove 11, at this time, the frictional force of the first connector 1 moving in the left-right direction in the mounting groove 41 is increased, thereby increasing the transverse tensile load-carrying capacity between the layer plate 5 and the cabinet body 4. But at this time, the first connector 1 can slide in the mounting groove 41 in the front-rear direction. When it is necessary to dismount the first connector 1 from the mounting groove 41, the insert 6 is reversely rotated to be rotated out of the expansion hole 110.

[0182] For example, Figure 44 , Figure 45As shown, the expansion hole 110 is in the shape of an ellipse or a kidney, and the insert 6 is also in the shape of an ellipse or a kidney. When the first connecting piece 1 needs to be installed into the installation groove 41, the first connecting piece 1 is first placed into the installation groove 41 in a clearance fit, and then the insert 6 is also inserted into the expansion hole 110 in a clearance fit. The insert 6 is driven to rotate by a certain angle (for example, 90° / 75° / 60°, etc.), so that the upper side wall and / or the lower side wall of the first connecting piece 1 expands outward, so that the first protruding part 15 abuts against the inner side wall of the connecting groove 11, at this time, the frictional force of the first connecting piece 1 moving in the left-right direction in the installation groove 41 is increased, thereby increasing the transverse tensile load-carrying capacity between the layer plate 5 and the cabinet body 4. But at this time, the first connecting piece 1 can slide in the front-rear direction in the installation groove 41. When the first connecting piece 1 needs to be removed from the installation groove 41, the insert 6 is reversely driven to rotate by a corresponding angle.

[0183] Alternatively, the inner side wall of the expansion hole 110 is smooth and the hole diameter gradually decreases, and the insert 6 is a pin or a column. The insert 6 is directly inserted into the expansion hole 110 to make the upper side wall and / or the lower side wall of the first connecting piece 1 expand outward, so that the first protruding part 15 abuts against the inner side wall of the connecting groove 11, at this time, the frictional force of the first connecting piece 1 moving in the left-right direction in the installation groove 41 is increased, thereby increasing the transverse tensile load-carrying capacity between the layer plate 5 and the cabinet body 4. When the first connecting piece 1 needs to be removed, only the insert 6 needs to be pulled out of the expansion hole 110 with a tool.

[0184] In some embodiments, as shown in Figure 11 , Figures 17-18 The first connecting piece 1 is formed with at least one first buckle 16, for example, the first buckle 16 can be protruded on the side of the first connecting piece 1 away from the notch of the connecting groove 11. Among them, the structure of the first buckle 16 is a conventional structure in the technical field, for example, in the shape of a triangular body, when the installation groove 41 of the cabinet body 4 is a two-stage groove (the two-stage groove can be formed by special drill bit through two consecutive milling processes), the side wall of the installation groove 41 is formed with a protruding structure, when the first connecting piece 1 is inserted into the installation groove 41 and the first buckle 16 is matched and buckled with the protruding structure of the installation groove 41, the first connecting piece 1 is limited to be pulled out from the installation groove 41 in the left-right direction, thereby improving the connection firmness between the layer plate 5 and the cabinet body 4. In addition, when the first buckle 16 is matched and buckled with the protruding structure of the installation groove 41, it does not affect the sliding of the first connecting piece 1 in the front-rear direction in the installation groove 41, and the first buckle 16 can slide synchronously with the first connecting piece 1 in the front-rear direction in the installation groove 41.

[0185] In some embodiments, as shown in Figures 3-4 , Figures 12-16As shown, in order to improve the tensile load capacity in the left-right direction of the layer plate 5 and the cabinet body 4 through the first connecting piece 1 and the second connecting piece 2, the end of the connecting portion 21 away from the elastic portion 23 is formed with a connecting boss 211 which is inserted into the connecting groove 11; the lower inner wall of the connecting groove 11 is formed with a fastening flange 17 which cooperates with the connecting boss 211 to limit the connecting boss 211 from being pulled out or moved out of the connecting groove 11. The fastening flange 17 can be continuous annular or in the form of spaced protrusions, when the installation of the layer plate 5 on the cabinet body 4 is completed, the connecting portion 21 is located at the lower side of the connecting groove 11, and the connecting boss 211 cooperates with the fastening flange 17 to be clamped, the connecting boss 211 is limited to be pulled out of the connecting groove 11 by the fastening flange 17, so that the first connecting piece 1 and the second connecting piece 2 are firmly connected, and the layer plate 5 and the cabinet body 4 are improved in the tensile load capacity in the left-right direction through the first connecting piece 1 and the second connecting piece 2. At this time, a part of the first adjusting surface 13 and a part of the second adjusting surface 14 are located on the fastening flange 17 respectively.

[0186] Further, in some embodiments, as shown in Figures 5-9 The fastening flange 17 is formed with clamping protrusions 171, the number of the clamping protrusions 171 can be one or more, for example, the number of the clamping protrusions 171 is two, the two clamping protrusions 171 are oppositely spaced on the fastening flange 17, and the gap between the two clamping protrusions 171 forms a clamping opening, the width of the clamping opening is smaller than the diameter of the neck of the connecting portion 21, so that during the movement of the connecting portion 21 to the lower side of the connecting groove 11, the neck of the connecting portion 21 is elastically deformed to increase the diameter of the neck, and after the neck of the connecting portion 21 passes through the clamping protrusions 171, the clamping opening returns to the original state, so that the neck of the connecting portion 21 in the static state is difficult to pass through the clamping opening without external force, thereby improving the stability of the layer plate 5 in the cabinet body 4 in the up-down direction.

[0187] In some other embodiments, as shown in Figure 10 The upper and lower sidewalls of the first connecting piece 1 are smooth and flat, and the inner sidewall of the connecting groove 11 or the slot is also not provided with the fastening flange 17, and the part of the connecting portion 21 inserted into the connecting groove 11 is in the form of a smooth rod, at this time, the tensile load capacity in the left-right direction between the first connecting piece 1 and the second connecting piece 2 is poor, and the layer plate 5 and the cabinet body 4 are easily separated from each other in the left-right direction under the transverse tensile force.

[0188] In some embodiments, as shown in Figures 12-15As shown, the outer cylinder portion 22 is in the shape of a cylinder or a truncated cone, and an outer thread portion 221 is formed on the outer peripheral wall of the outer cylinder portion 22. The outer cylinder portion 22 has a mounting passage 222 for accommodating the elastic portion 23 and the connecting portion 21, and the mounting passage 222 has two ends penetrating through the opposite ends of the outer cylinder portion 22. The first end opening of the mounting passage 222 is provided with a plug 24 by press fitting or screwing. The elastic portion 23 (for example, a spring, a compression spring, or an elastic body such as a gel) and the connecting portion 21 are inserted into the mounting passage 222 through the first end opening of the mounting passage 222. The second end opening of the mounting passage 222 is in the shape of a taper to limit the separation of the connecting portion 21 from the outer cylinder portion 22, so that the connecting portion 21 can reciprocally extend and retract relative to the outer cylinder portion 22 through the elastic portion 23. The cross-sectional shape of the mounting passage 222 is the same as that of the inner ring of the sleeve, and the cross-sectional shape of the outer contour of the connecting boss 211 is adapted to the cross-sectional shape of the sleeve. It can be understood that the mounting passage 222 is in a non-circular shape to ensure that the connecting portion 21 can only slide along the axial direction of the mounting passage 222 in the mounting passage 222, thereby limiting the rotation of the connecting portion 21 relative to the outer cylinder portion 22 along the circumferential direction of the mounting passage 222. The connecting boss 211 is also in a non-circular shape, for example, in the shape of a triangle, a square, a hexagon, an octagon, an ellipse, a waist circle, or a petal, so that the sleeve wrench can drive the connecting boss 211 to rotate, thereby driving the outer cylinder portion 22 to rotate. The cross-sectional area of the mounting hole 51 is equal to or slightly smaller than the cross-sectional area of the outer cylinder portion 22, so that the outer cylinder portion 22 can be self-tappingly inserted into the mounting hole 51 during rotation. An internal thread structure is formed on the inner side wall of the mounting hole 51 to threadedly connect with the outer cylinder portion 22, so that the outer cylinder portion 22 is fastened to the side wall of the layer plate 5 by thread connection, thereby limiting the sliding of the second connecting piece 2 from the mounting hole 51, so that the second connecting piece 2 is fastened to the layer plate 5. When the outer cylinder portion 22 is made of plastic, the outer cylinder portion 22 can be installed in the mounting hole 51 by knocking and extruding. When the outer cylinder portion 22 needs to be disassembled from the mounting hole 51, it only needs to be rotated in the opposite direction.

[0189] In some other embodiments, as shown in Figure 16 At least one fastening protrusion 223 is formed on the outer side wall of the outer cylinder portion 22. The fastening protrusion 223 can be in the shape of an inverted tooth structure, a convex point structure, or a convex block structure. The cross-sectional area of the mounting hole 51 is equal to or slightly smaller than the cross-sectional area of the outer cylinder portion 22, so that the fastening protrusion 223 on the surface of the outer cylinder portion 22 is inserted into the mounting hole 51 in an interference fit, thereby fastening the second connecting piece 2 to the layer plate 5.

[0190] In some embodiments, the first connecting piece 1 can slide in the front-rear direction in the installation groove 41, i.e. the installation groove 41 is non-circular in structure. The installation groove 41 is usually processed into a runway-shaped groove or a waist-circular groove by a drilling process. Correspondingly, the first connecting piece 1 can be provided in a runway shape or a waist-circular shape as viewed in the left-right direction, and the upper side wall and the lower side wall of the first connecting piece 1 are respectively in a planar shape, so that the upper and lower outer side walls of the first connecting piece 1 are parallel to the upper and lower inner side walls of the installation groove 41, thereby ensuring smooth sliding of the first connecting piece 1 in the front-rear direction in the installation groove 41.

[0191] In some embodiments, the connecting assembly of the embodiment 1 of the present application further comprises a fastener (not shown in the figure), such as a screw or a bolt, and a through hole 18 is formed in the left side wall or the right side wall of the first connecting piece 1, which can be a countersunk hole. When the first connecting piece 1 is accurately installed in the installation groove 41 of the cabinet body 4, in order to further improve the connection firmness of the first connecting piece 1 on the cabinet body 4, the fastener is connected to the cabinet body 4 through the through hole 18, thereby firmly locking the first connecting piece 1 on the cabinet body 4 and limiting the first connecting piece 1 from being pulled out of the connecting groove 11.

[0192] Further, as shown in Figure 8 the through hole 18 is a circular hole or an elliptical hole or a waist-circular hole or a runway-shaped hole. When the through hole 18 is an elliptical hole or a waist-circular hole or a runway-shaped hole, the cross-sectional area of the through hole 18 is larger than that of the fastener, so that the fastener can move forward and backward in the through hole 18, i.e. when the fastener is locked on the cabinet body 4 through the through hole 18, the forward and backward sliding of the first connecting piece 1 is not limited by the fastener during the sliding of the first connecting piece 1 in the front-rear direction in the installation groove 41 driven by the connecting part 21, thereby ensuring the smooth assembly of the second connecting piece 2 and the first connecting piece 1, and further enabling the installation of the layer plate 5 in the cabinet body 4.

[0193] The layer plate 5 and the cabinet body 4 of the embodiment 1 of the present application are connected by the connecting assembly of the embodiment 1 to form a connecting system, as shown in Figures 19-24As shown, the connection system comprises a cabinet body 4, a layer plate 5, a first connecting piece 1 and a second connecting piece 2. The cabinet body 4 is provided with a mounting groove 41 extending in the front-rear direction on the left or right inner wall. The layer plate 5 is arranged in the cabinet body 4 and slides in the up-down direction. The layer plate 5 is provided with a mounting hole 51 extending in the left-right direction on the side opposite to the mounting groove 41. The first connecting piece 1 is slidably mounted in the mounting groove 41 and can slide in the front-rear direction. The outer cylinder portion 22 is inserted into the mounting hole 51. The end of the connecting portion 21 away from the elastic portion 23 extends out of the layer plate 5 and is inserted into the connecting groove 11. When the layer plate 5 is mounted in the cabinet body 4, the layer plate 5 slides downward relative to the cabinet body 4. The connecting portion 21 moves downward in the connecting groove 11. When there is an error in the mounting position of the first connecting piece 1 in the mounting groove 41 (or there is an error in the position of the second connecting piece 2 on the layer plate 5), the downwardly moving connecting portion 21 abuts against the first adjusting surface 13 or the second adjusting surface 14. When the connecting portion 21 moves downward in the connecting groove 11 and abuts against the first adjusting surface 13, the connecting portion 21 drives the first connecting piece 1 to slide forward in the mounting groove 41. Or when the connecting portion 21 moves downward in the connecting groove 11 and abuts against the second adjusting surface 14, the connecting portion 21 drives the second connecting piece 2 to slide backward in the mounting groove 41. Thus, the first connecting piece 1 is adjusted to the appropriate position, so that the connecting portion 21 can smoothly move to the lower side of the connecting groove 11, and the assembly process of the layer plate 5 in the cabinet body 4 is completed.

[0194] Further, after the assembly is completed, since the left and right sides of the layer plate 5 are respectively attached to or almost close to the left and right inner sides of the cabinet body 4, in the mounting process, the left and right sides of the layer plate 5 are first abutted against the left and right inner sides of the cabinet body 4, respectively. The inner side of the cabinet body 4 drives the connecting portion 21 to retract into the outer cylinder portion 22. At this time, the elastic portion 23 is in a compressed state. The layer plate 5 slides downward in the cabinet body 4 and aligns the connecting portion 21 above the slot of the connecting groove 11. When the connecting portion 21 moves to the slot of the connecting groove 11, the layer plate 5 further slides downward to make a gap between the connecting portion 21 and the inner wall of the connecting groove 11. The elastic portion 23 drives the connecting portion 21 to extend outward and enter the connecting groove 11. When the layer plate 5 further moves downward, the connecting portion 21 moves downward in the connecting groove 11. At this time, the connecting portion 21 can abut against the first adjusting surface 13 or the second adjusting surface 14, which drives the first connecting piece 1 to slide in the front-rear direction on the cabinet body. Or the position of the first connecting piece 1 is fixed, and the downwardly moving layer plate 5 drives the connecting portion 21 to move to the lower side of the connecting groove 11. Thus, the mounting process of the layer plate 5 in the cabinet body 4 is completed.

[0195] After the installation is completed, if the layer plate 5 slightly protrudes in front of the cabinet body 4, an acting force can be applied to the layer plate 5 to make the first connecting piece 1 move backward, which indirectly makes the second connecting piece 2 and the layer plate 5 move backward, so that the cabinet is more beautiful.

[0196] When the layer plate 5 needs to be detached from the cabinet body 4, an external force is applied to the bottom of the layer plate 5 to push the layer plate 5 to move upward, the moving layer plate 5 drives the connecting part 21 to move upward in the connecting groove 11, when the connecting part 21 abuts to the unlocking surface 12, the unlocking surface 12 drives the connecting part 21 to gradually retract into the outer cylinder part 22, so that the connecting part 21 is removed from the connecting groove 11, when the connecting part 21 is completely removed from the connecting groove 11, the first connecting piece 1 and the second connecting piece 2 are separated from each other, the layer plate 5 can slide in the front and back direction, and the layer plate 5 is detached from the cabinet body 4.

[0197] Embodiment 2

[0198] As shown in Figures 25-41 Embodiment 2 of the present application discloses a connecting assembly, which has a structure similar to that of the connecting assembly of Embodiment 1, and the difference is that the connecting assembly of Embodiment 2 further comprises a fixing piece 3', which is fixedly installed in a mounting groove 41 of the cabinet body 4, and the first connecting piece 1' is installed in a sliding groove 31' of the fixing piece 3' and can slide in the front and back direction in the sliding groove 31'. In this way, a fixing piece 3' is fixedly increased in the mounting groove 41, and the first connecting piece 1' slides on the fixing piece 3', so that the first connecting piece 1' is indirectly adjusted and installed on the cabinet body 4, thereby effectively ensuring that when the first connecting piece 1' has a position error on the cabinet body 4, the layer plate 5 can also be smoothly installed on the cabinet body 4, avoiding the trouble of re-drilling holes on the cabinet body 4 or the layer plate 5 after the connecting assembly is detached, and the installation is convenient and efficient. In addition, the increase of the fixing piece 3' can achieve the effect of beautification, so that the user thinks that the first connecting piece 1' is displaced on the fixing piece 3', rather than directly on the cabinet body 4, and when the first connecting piece 1' and the fixing piece 3' are made of the same material (for example, plastic material), the first connecting piece 1' slides more smoothly.

[0199] It should be noted that the structure of the cabinet body 4 and the layer plate 5 of Embodiment 2 is the same as that of the cabinet body 4 and the layer plate 5 of Embodiment 1, respectively, and the specific structure is described in Embodiment 1, which is omitted here.

[0200] Specifically, as shown in Figures 25-37As shown, the connecting assembly of this embodiment 2 comprises a fixing member 3', a first connecting member 1' and a second connecting member 2'. The fixing member 3' is used to be fixedly installed in the mounting groove 41 of the inner side wall of the cabinet body 4, and the left or right side wall of the fixing member 3' is formed with a sliding groove 31' extending in the front-rear direction. The left or right side wall of the first connecting member 1' is formed with a connecting groove 11', and the upper inner wall of the connecting groove 11' and the groove bottom of the connecting groove 11' are formed with an unlocking surface 12' in an inclined shape. The front side inner wall of the connecting groove 11' is formed with a first adjusting surface 13' gradually inclined to the lower rear side, and the rear side inner wall of the connecting groove 11' is formed with a second adjusting surface 14' gradually inclined to the lower front side. The first adjusting surface 13' and the second adjusting surface 14' are oppositely spaced apart. The first connecting member 1' is slidingly installed in the sliding groove 31' in the front-rear direction. The second connecting member 2' comprises a connecting portion 21', an outer cylinder portion 22' and an elastic portion 23' arranged in the outer cylinder portion 22'. One end of the elastic portion 23' is connected with the outer cylinder portion 22', and the other end of the elastic portion 23' is connected with the connecting portion 21'. The connecting portion 21' reciprocatingly extends and retracts relative to the outer cylinder portion 22' through the elastic portion 23'. The outer cylinder portion 22' is used to be fixedly installed to one side of the layer plate 5, and one end of the connecting portion 21' away from the elastic portion 23' is inserted into the connecting groove 11'. The first adjusting surface 13' is used to drive the first connecting member 1' to slide forward in the sliding groove 31' when the connecting portion 21' moves downward and abuts against the first adjusting surface 13'. The second adjusting surface 14' is used to drive the first connecting member 1' to slide backward in the sliding groove 31' when the connecting portion 21' moves downward and abuts against the second adjusting surface 14'.

[0201] It should be noted that the structures of the unlocking surface 12', the first adjusting surface 13' and the second adjusting surface 14' of the first connecting member 1' of this embodiment 2 are the same as those of the unlocking surface 12, the first adjusting surface 13 and the second adjusting surface 14 of the first connecting member 1 of the above-mentioned embodiment 1. For details, please refer to the description of the above-mentioned embodiment 1, which is omitted here.

[0202] It can be understood that when the volume of the first connecting member 1' of this embodiment 2 is the same as that of the first connecting member 1 of the above-mentioned embodiment 1, since the volume of the fixing member 3' is greater than that of the first connecting member 1', the size of the mounting groove 41 of the cabinet body 4 of this embodiment 2 in the front-rear direction is greater than that of the mounting groove 41 of the cabinet body 4 of the above-mentioned embodiment 1 in the front-rear direction, so as to ensure that the first connecting member 1' slides in the front-rear direction on the fixing member 3'.

[0203] In some embodiments, as Figures 25-27As shown, the upper side wall of the fixing member 3' and / or the lower side wall of the fixing member 3' is formed with a connecting port 32' in communication with the sliding groove 31', the first connecting member 1' is formed with a second protruding portion 15', and a part of the second protruding portion 15' penetrates through the connecting port 32' to protrude outside the fixing member 3'. Specifically, the upper side wall of the first connecting member 1' is formed with the second protruding portion 15', at this time, the upper side wall of the fixing member 3' is formed with the connecting port 32'; or the lower side wall of the first connecting member 1' is formed with the second protruding portion 15', at this time, the lower side wall of the fixing member 3' is formed with the connecting port 32'; or both the upper and lower side walls of the second connecting member 2' are formed with the first protruding portion, at this time, both the upper and lower side walls of the fixing member 3' are formed with the connecting port 32'. The second protruding portion 15' can be integrally formed on the first connecting member 1', for example, the second protruding portion 15' and the first connecting member 1' are formed into an integrated member through an injection molding process, and the overall structural strength is large, and the connection is stable and reliable. Among them, the embodiment 2 of the present application does not limit the specific structure or shape of the second protruding portion 15', that is, the second protruding portion 15' includes a reverse tooth structure or a protruding point structure or a protruding block structure or a protruding strip structure, and the number of the reverse tooth structure or the protruding point structure or the protruding block structure or the protruding strip structure can be one or more. In this way, the second protruding portion 15' formed on the upper side wall and / or the lower side wall of the first connecting member 1' abuts against the upper side inner wall and / or the lower side inner wall of the mounting groove 41 after penetrating through the connecting port 32', thereby increasing the frictional force of the first connecting member 1' moving in the left-right direction in the mounting groove 41, thereby limiting the transverse separation of the layer plate 5 and the cabinet body 4.

[0204] Further, in order to ensure that the first connecting member 1' slides in the front-rear direction in the sliding groove 31', the second protruding portion 15' extends in the front-rear direction, so that the fastening force of the second protruding portion 15' on the first connecting member 1' is in the left-right direction, the frictional force of the first connecting member 1' in the front-rear direction in the sliding groove 31' is smaller, and the smooth sliding of the first connecting member 1' in the front-rear direction is ensured.

[0205] It needs to be further explained that when the above-mentioned first connecting member 1' is inserted into the mounting groove 41 of the cabinet body 4, the second protruding portion 15' abuts against the inner side wall of the mounting groove 41, so that the first connecting member 1' is limited in the mounting groove 41 and is difficult to be pulled out.

[0206] In some other embodiments, after the first connecting member 1' of the embodiment 2 is inserted into the mounting groove 41, there is a gap between the second protruding portion 15' and the inner side wall of the mounting groove 41, which facilitates the first connecting member 1' to be easily disassembled and reassembled when the installation direction of the first connecting member 1' in the mounting groove 41 is opposite (for example, the up-down direction is opposite). When the first connecting member 1' of this embodiment is located in the mounting groove 41, the first connecting member 1' is easily pulled out from the mounting groove 41, resulting in that there is no transverse tensile resistance between the layer plate 5 and the cabinet body 4. Therefore, as shown in FIG. 6, the second protruding portion 15' of the first connecting member 1' is formed with a plurality of protruding points 151', and the mounting groove 41 of the cabinet body 4 is formed with a plurality of protruding points 411' corresponding to the plurality of protruding points 151' of the second protruding portion 15'. When the first connecting member 1' is inserted into the mounting groove 41, the plurality of protruding points 151' of the second protruding portion 15' abut against the plurality of protruding points 411' of the mounting groove 41, so that the first connecting member 1' is limited in the mounting groove 41 and is difficult to be pulled out. Figure 47As shown, the connecting assembly of the embodiment further comprises an insert 6', and an expansion hole 110' is formed on the left side wall or the right side wall of the first connecting piece 1', and the insert 6' is inserted into the expansion hole 110' to expand the upper side wall and / or the lower side wall of the first connecting piece 1' outward. The structure and working principle of the insert 6' and the expansion hole 110' of the second embodiment are the same as those of the insert 6 and the expansion hole 110 of the first embodiment, and the specific description is referred to the description of the first embodiment.

[0207] In some embodiments, as shown in Figures 25-29 , Figures 33-35 In order to fix the fixing piece 3' in the mounting groove 41 of the cabinet 4, at least one first fastening protrusion 34' is formed on the outer side wall of the fixing piece 3'. The first fastening protrusion 34' can be a reverse tooth structure or a protrusion structure or a bump structure, and the fixing piece 3' is installed in the mounting groove 41 by the first fastening protrusion 34' to firmly install the fixing piece 3' on the cabinet 4. The first connecting piece 1' is indirectly fastened on the cabinet 4 by being firmly connected with the fixing piece 3', thereby limiting the transverse separation of the layer plate 5 from the cabinet 4.

[0208] Further, as shown in Figures 26-35 In order to realize the firm connection between the first connecting piece 1' and the fixing piece 3' in the transverse direction, the slot bottom or the upper side wall or the lower side wall of the sliding groove 31' is formed with a through hole 33', the first connecting piece 1' is formed with at least one second buckle 16', the second buckle 16' is protruded on the side of the first connecting piece 1' away from the slot of the connecting groove 11', the second buckle 16' is inserted into the through hole 33' and is matched with the fixing piece 3' for clamping. The second buckle 16' is a conventional structure in the technical field, for example, a triangular body. When the first connecting piece 1' is installed in the sliding groove 31' and the second buckle 16' is inserted into the through hole 33', the second buckle 16' is clamped with the fixing piece 3', which limits the first connecting piece 1' from being pulled out of the sliding groove 31' in the left-right direction, thereby indirectly limiting the first connecting piece 1' from being pulled out of the mounting groove 41 in the left-right direction, and improving the connection firmness between the layer plate 5 and the cabinet 4. When the second buckle 16' is matched with the fixing piece 3' for clamping, it does not affect the sliding of the first connecting piece 1' in the front-rear direction in the sliding groove 31', and the second buckle 16' can slide synchronously with the first connecting piece 1' in the front-rear direction.

[0209] In some embodiments, as shown in Figures 26-27As shown, the first connecting piece 1' is formed with at least one third buckle 19', which is protruded from one side of the first connecting piece 1' away from the slot opening of the connecting slot 11'. The third buckle 19' is of a conventional structure in the technical field, for example, in a triangular shape. When the mounting slot 41 of the cabinet body 4 is a two-stage recess (the two-stage recess can be formed by a special drill bit through two consecutive milling processes), the side wall of the mounting slot 41 is formed with a protruding structure, and the fixing piece 3' is installed in the mounting slot 41. After the first connecting piece 1' is inserted into the sliding slot 31' and the third buckle 19' is matched and buckled with the protruding structure of the mounting slot 41, the first connecting piece 1' is limited to be pulled out from the mounting slot 41 in the left-right direction, thereby improving the connection firmness between the layer plate 5 and the cabinet body 4. In addition, when the third buckle 19' is matched and buckled with the protruding structure of the mounting slot 41, it does not affect the sliding of the first connecting piece 1' in the front-rear direction in the sliding slot 31', and the third buckle 19' can slide synchronously with the first connecting piece 1' in the front-rear direction.

[0210] In some embodiments, as shown in Figure 26 、 Figure 27 、 Figure 30 、 Figure 36 、 Figure 37 As shown, in order to improve the tensile load capacity in the left-right direction between the layer plate 5 and the cabinet body 4 through the first connecting piece 1' and the second connecting piece 2', one end of the connecting part 21' away from the elastic part 23' is formed with a connecting boss 211', which is inserted into the connecting slot 11'; the lower inner wall of the connecting slot 11' is formed with a fastening flange 17', which is matched with the connecting boss 211' to limit the pulling out or moving out of the connecting boss 211' from the connecting slot 11'. The fastening flange 17' can be in a continuous ring shape or in a spaced-apart protrusion shape. After the installation of the layer plate 5 on the cabinet body 4 is completed, the connecting part 21' is located at the lower side of the connecting slot 11', and the connecting boss 211' is matched and buckled with the fastening flange 17'. The connecting boss 211' is limited to be pulled out from the connecting slot 11' by the fastening flange 17', so as to firmly connect the first connecting piece 1' and the second connecting piece 2', and further improve the tensile load capacity in the left-right direction between the layer plate 5 and the cabinet body 4 through the first connecting piece 1' and the second connecting piece 2'.

[0211] Further, in some embodiments, the fastening flange 17' is formed with a buckling protrusion 171', and the number of the buckling protrusions 171' can be one or more, for example Figure 26 、 Figure 27 、 Figure 30The two clamping protrusions 171' are oppositely arranged on the fastening flange 17', and the gap between the two clamping protrusions 171' forms a clamping opening, the width of the clamping opening is smaller than the diameter of the neck of the connecting part 21', so that when the connecting part 21' moves to the lower side of the connecting groove 11', the neck of the connecting part 21' will be elastically deformed to increase the size of the clamping opening, and when the neck of the connecting part 21' passes through the clamping protrusions 171', the clamping opening returns to its original size, so that the neck of the connecting part 21' in the static state is difficult to pass through the clamping opening without external force, thereby improving the stability of the layer plate 5 in the cabinet body 4 in the up-down direction.

[0212] In other embodiments, the upper and lower side walls of the first connecting piece 1' are smooth and flat, and the inner side wall of the connecting groove 11' or the slot is also not provided with a fastening flange 17', and the part of the connecting part 21' inserted into the connecting groove 11' is a smooth rod, at this time, the first connecting piece 1' and the second connecting piece 2' have poor load-bearing capacity in the left-right direction, and the layer plate 5 and the cabinet body 4 are easily separated in the left-right direction by transverse tension.

[0213] In addition, the other specific structures of the second connecting piece 2' of the second embodiment 2 are the same as those of the second connecting piece 2 of the first embodiment 1, and the mounting structure of the second connecting piece 2' of the second embodiment 2 on the layer plate 5 is the same as that of the second connecting piece 2 of the first embodiment 1 on the layer plate 5, and the specific structure is described in the first embodiment 1, which is omitted here.

[0214] In some embodiments, since the mounting groove 41 is processed by drilling, the mounting groove 41 is usually processed into a runway-shaped groove or a waist-round-shaped groove. Correspondingly, the shape of the fixing piece 3' is the same as that of the first connecting piece 1', that is, the fixing piece 3' also has a runway shape or a waist-round shape when viewed in the left-right direction, and correspondingly, the slide groove 31' also has a runway shape or a waist-round shape when viewed in the left-right direction, and the upper and lower inner walls of the slide groove 31' are flat, and the shape of the first connecting piece 1' is matched with the shape of the slide groove 31', that is, the first connecting piece 1' also has a runway shape or a waist-round shape, so that the upper and lower side walls of the first connecting piece 1' are parallel to the upper and lower inner walls of the slide groove 31', ensuring that the first connecting piece 1' smoothly slides in the slide groove 31' in the front-rear direction. In other embodiments, the first connecting piece 1' can have a circular shape or a D-shaped when viewed in the left-right direction, at this time, the first connecting piece 1' can also slide in the slide groove 31' in the front-rear direction, and the sliding stability is general.

[0215] In some embodiments, the connecting assembly of the second embodiment of the present application further comprises a fastener (not shown in the figure), such as a screw or a bolt, and a through hole 18' is formed in the left or right side wall of the first connecting piece 1', which can be a countersunk hole, and the fastener is inserted into the through hole 18'. After the first connecting piece 1' is accurately installed in the mounting groove 41 of the cabinet body 4, in order to further improve the connection stability of the first connecting piece 1' on the cabinet body 4, the fastener is inserted into the through hole 18' and connected to the cabinet body 4, so as to firmly lock the first connecting piece 1' on the cabinet body 4 and limit the first connecting piece 1' from being pulled out of the connecting groove 11'.

[0216] Further, the through hole 18' is a circular hole or an oval hole or a waist-shaped hole or a racetrack-shaped hole. When the through hole 18' is an oval hole or a waist-shaped hole or a racetrack-shaped hole, the cross-sectional area of the through hole 18' is larger than that of the fastener, so that the fastener can move forward and backward in the through hole 18'. That is, when the fastener is locked on the cabinet body 4 through the through hole 18', the forward and backward sliding of the first connecting piece 1' is not limited by the fastener during the sliding of the first connecting piece 1' driven by the connecting part 21' in the forward and backward directions, so as to ensure the smooth assembly of the second connecting piece 2' and the first connecting piece 1', and further to ensure the installation of the layer plate 5 in the cabinet body 4.

[0217] The layer plate 5 and the cabinet body 4 of the second embodiment of the present application are connected by the connecting assembly of the second embodiment to form a connecting system, as shown in Figures 38-41As shown, the connecting system comprises the cabinet body 4, the layer plate 5, the fixing member 3', the first connecting member 1' and the second connecting member 2', wherein the left or right inner wall of the cabinet body 4 is formed with a mounting groove 41 extending in the front-rear direction; the layer plate 5 is arranged in the cabinet body 4 and slides in the up-down direction, and the side of the layer plate 5 opposite to the mounting groove 41 is formed with a mounting hole 51 extending in the left-right direction; the fixing member 3' is fixedly arranged in the mounting groove 41, the outer cylinder portion 22' is inserted into the mounting hole 51, and the end of the connecting portion 21' away from the elastic portion 23' extends out of the layer plate 5 and is inserted into the connecting groove 11'; when the layer plate 5 slides downward relative to the cabinet body 4, the connecting portion 21' moves downward in the connecting groove 11'. When there is an error in the installation position of the first connecting member 1' in the sliding groove 31' (or there is an error in the position of the second connecting member 2' on the layer plate 5), the downwardly moving connecting portion 21' will abut against the first adjusting surface 13' or the second adjusting surface 14'; when the connecting portion 21' moves downward in the connecting groove 11' and abuts against the first adjusting surface 13', the connecting portion 21' will drive the first connecting member 1' to slide forward in the sliding groove 31' (equivalent to driving the first connecting member 1' to slide forward on the cabinet body 4), or when the connecting portion 21' moves downward in the connecting groove 11' and abuts against the second adjusting surface 14', the connecting portion 21' will drive the second connecting member 2' to slide backward in the sliding groove 31' (equivalent to driving the first connecting member 1' to slide backward on the cabinet body 4), so as to adjust the first connecting member 1' to a proper position, so that the connecting portion 21' can smoothly move to the lower side of the connecting groove 11', and the assembly process of the layer plate 5 in the cabinet body 4 is completed.

[0218] Furthermore, after assembly, since the left and right sides of the shelf 5 are respectively attached to or almost close to the left and right inner sides of the cabinet 4, during installation, the left and right sides of the shelf 5 are first brought to the left and right inner sides of the cabinet 4, and the inner drive connecting part 21' of the cabinet 4 retracts into the outer cylinder part 22'. At this time, the elastic part 23' is in a compressed state. After the shelf 5 slides down inside the cabinet 4 and the connecting part 21' is aligned with the upper side of the groove of the connecting groove 11', when the connecting part 21' moves to the groove of the connecting groove 11', the shelf 5 slides down further to make the connecting part 21' and the connecting part 11'... There is a gap between the inner walls of the connecting groove 11'. The elastic part 23' drives the connecting part 21' to extend outward and enter the connecting groove 11'. When the shelf 5 moves further downward, the connecting part 21' moves downward in the connecting groove 11'. At this time, the connecting part 21' may abut against the first adjusting surface 13' or the second adjusting surface 14', driving the first connecting member 1' to slide in the sliding groove 31' along the front-back direction. Alternatively, the position of the first connecting member 1' may remain unchanged, and the downward-moving shelf 5 will drive the connecting part 21' to move to the lower side of the connecting groove 11'. This completes the installation process of the shelf 5 in the cabinet 4. After installation, if the shelf 5 protrudes slightly from the front of the cabinet 4, a force can be applied to the shelf 5 to move the first connecting member 1' backward, indirectly causing the second connecting member 2' and the shelf 5 to move backward, making the cabinet more aesthetically pleasing.

[0219] When the shelf 5 needs to be removed from the cabinet 4, an external force is applied to the bottom of the shelf 5 to push it upward. The moving shelf 5 causes the connecting part 21' to move upward in the connecting groove 11'. When the connecting part 21' abuts against the unlocking surface 12', the unlocking surface 12' drives the connecting part 21' to gradually retract into the outer cylinder part 22', so that the connecting part 21' is removed from the connecting groove 11'. When the connecting part 21' is completely removed from the connecting groove 11', the first connecting member 1' and the second connecting member 2' separate from each other, and the shelf 5 can slide in the front and back direction to remove the shelf 5 from the cabinet 4.

[0220] Example 3

[0221] like Figures 48-57 As shown, Embodiment 3 of the present invention discloses a connecting component, the structure of which is similar to that of the connecting component in Embodiment 1 or 2 above. The difference is that: the first connecting member 1a is fixedly installed on the cabinet 4, and the second connecting member 2a is slidably installed on the shelf 5. In this way, the first adjusting surface 13a or the second adjusting surface 14a of the first connecting member 1a cooperates with the connecting part 21a of the second connecting member 2a to adjust the position of the second connecting member 2a on the shelf 5, so that the shelf 5 can be smoothly installed on the cabinet 4.

[0222] Specifically, such as Figures 48-54As shown, first embedding groove 42 is processed on the left or right inner wall of cabinet body 4 by drilling process, and second embedding groove 52 extending along the front-rear direction is processed on the outer wall of layer plate 5, and the position of first embedding groove 42 corresponds to the position of second embedding groove 52. The connecting assembly of the present embodiment 3 comprises first connecting piece 1a and second connecting piece 2a. The left or right wall of first connecting piece 1a is formed with connecting groove 11a, and the upper inner wall of connecting groove 11a and the groove bottom of connecting groove 11a form unlocking surface 12a in an inclined shape. The front inner wall of connecting groove 11a is formed with first adjusting surface 13a gradually inclined rearward, and the rear inner wall of connecting groove 11a is formed with second adjusting surface 14a gradually inclined forward. First adjusting surface 13a and second adjusting surface 14a are oppositely spaced apart. First connecting piece 1a is fixedly installed in first embedding groove 42 of cabinet body 4, for example, first connecting piece 1a is fastened in first embedding groove 42 by interference fit or gluing. Second connecting piece 2a comprises connecting part 21a, sliding part 22a and elastic part 23a arranged in sliding part 22a. One end of elastic part 23a is connected with sliding part 22a, and the other end of elastic part 23a is connected with connecting part 21a. Connecting part 21a reciprocatingly extends and retracts relative to sliding part 22a through elastic part 23a. Sliding part 22a is slidably installed in second embedding groove 52 of layer plate 5, and sliding part 22a slides in the front-rear direction in second embedding groove 52. One end of connecting part 21a away from elastic part 23a is inserted into connecting groove 11a. First adjusting surface 13a is used to drive second connecting piece 2a to slide rearward when connecting part 21a moves downward and abuts against first adjusting surface 13a. Second adjusting surface 14a is used to drive second connecting piece 2a to slide forward when connecting part 21a moves downward and abuts against second adjusting surface 14a.

[0223] It should be noted that the structures of the unlocking surface 12a, the first adjusting surface 13a, and the second adjusting surface 14a of the first connector 1a in this embodiment 3 are the same as those of the unlocking surface 12, the first adjusting surface 13, and the second adjusting surface 14 in embodiment 1. For specific structures, please refer to the description in embodiment 1 above; further details are omitted here. The length of the first mounting groove 42 in the front-back direction is the same as the length of the first connector 1a in the front-back direction, so that the first connector 1a cannot move back and forth within the first mounting groove 42. The length of the second mounting groove 52 in the front-back direction is greater than the length of the second connector 2a in the front-back direction, so that the second connector 2a can slide in the front-back direction within the second mounting groove 52. Thus, when the shelf 5 is installed in the cabinet 4, the downward sliding connecting part 21a abuts against the first adjusting surface 13a or the second adjusting surface 14a, and the first adjusting surface 13a or the second adjusting surface 14a generates a pushing force on the connecting part 21a of the second connecting member 2a, pushing the second connecting member 2a to adjust its position backward or forward in the second mounting groove 52, thereby ensuring that the connecting part 21a moves smoothly to the lower side wall of the connecting groove 11a, completing the installation of the shelf 5. This avoids the second connecting member 2a having positional errors on the shelf 5, which would make assembly difficult and require re-drilling. It has a high fault tolerance rate and avoids the need to replace the cabinet 4 or the shelf 5 due to drilling errors.

[0224] In some implementations, such as Figure 48 As shown, in order to fix the first connector 1a in the first mounting groove 42, at least one fastening protrusion 15a is formed on the outer side wall of the first connector 1a. The fastening protrusion 15a can be a toothed structure, a raised dot structure, or a protrusion structure. The cross-sectional area of ​​the first mounting groove 42 is equal to or slightly smaller than the cross-sectional area of ​​the first connector 1a, so that the fastening protrusion 15a on the surface of the first connector 1a is inserted into the first mounting groove 42 with an interference fit, so that the first connector 1a is fixed on the cabinet 4.

[0225] In some embodiments, since the first fitting groove 42 is processed by drilling, it is typically a circular or oval hole. When the first fitting groove 42 is a circular hole, the first connector 1a also appears circular when viewed from its left side to its right side. Specifically, the first connector 1a is a cylindrical or frustum-shaped structure. However, because the first connector 1a has an axisymmetric structure, it may be installed in the wrong direction (e.g., reversed vertical installation) when inserted into the first fitting groove 42. Therefore, as such... Figure 52 As shown, a positioning portion 16a is formed on the first connecting member 1a in this embodiment, and the positioning portion 16a can be located on the outer side wall of the first connecting member 1a; or, as... Figures 49-51As shown, the positioning portion 16a can be located on the side of the first connecting piece 1a away from the slot opening of the connecting slot 11a, and the central axis of the positioning portion 16a is not in line with the central axis of the first connecting piece 1a, so that the positioning portion 16a is eccentric to the first connecting piece 1a. The structure of the positioning portion 16a can be a column structure extending in the front-back direction, or a column structure extending in the left-right direction. The cross-sectional area of the positioning portion 16a can be smaller than the cross-sectional area of the first connecting piece 1a. The positioning portion 16a can be a plastic part formed in an integrated structure with the first connecting piece 1a by an injection molding process. Correspondingly, a positioning hole corresponding to the first embedded slot 42 is processed on the inner side wall of the cabinet body 4, and the positioning hole is used to accommodate the positioning portion 16a. Thus, the positioning portion 16a is positioned in cooperation with the positioning hole, so as to ensure that the first connecting piece 1a is accurately installed into the first embedded slot 42, avoiding the problem of incorrect installation direction of the first connecting piece 1a on the cabinet body 4.

[0226] In some embodiments, as shown in Figure 48 , Figure 49 , Figure 52 , Figure 54 In order to improve the tensile load capacity in the left-right direction of the layer plate 5 and the cabinet body 4 through the first connecting piece 1a and the second connecting piece 2a, the end of the connecting portion 21a away from the elastic portion 23a of the embodiment 3 is formed with a connecting boss 211a, which is inserted into the connecting slot 11a; a fastening flange 17a is formed on the lower inner wall of the connecting slot 11a, and the fastening flange 17a cooperates with the connecting boss 211a to limit the connecting boss 211a from being pulled out or moved out of the connecting slot 11a. The structure of the connecting boss 211a and the fastening flange 17a of the embodiment 3 is the same as that of the connecting boss 211a and the fastening flange 17a of the above-mentioned embodiment 1, respectively, and the specific description is referred to the description of the above-mentioned embodiment 1, which is omitted here.

[0227] Further, in some embodiments, the fastening flange 17a is formed with a clamping protrusion 18a, and the number of the clamping protrusion 18a can be one or more, for example Figure 48 , Figure 49 , Figure 52 The number of the clamping protrusion 18a is two, and the two clamping protrusions 18a are oppositely spaced on the fastening flange 17a, and the gap between the two clamping protrusions 18a forms a clamping opening, and the width of the clamping opening is smaller than the diameter of the neck portion of the connecting portion 21a, so that when the connecting portion 21a moves to the lower side of the connecting slot 11a, the neck portion of the connecting portion 21a is elastically deformed to increase the diameter of the neck portion, and after the neck portion of the connecting portion 21a passes through the clamping protrusion 18a, the clamping opening returns to its original state, so that the neck portion of the connecting portion 21a in the static state is difficult to pass through the clamping opening without external force, thereby improving the stability of the layer plate 5 in the cabinet body 4 in the up-down direction.

[0228] In some other embodiments, the outer peripheral wall of the first connecting piece 1a is smooth and planar, and the inner wall of the connecting groove 11a or the groove mouth is also free of the fastening flange 17a, and the portion of the connecting part 21a inserted into the connecting groove 11a is smooth and rod-shaped, at this time, the first connecting piece 1a has poor load bearing capacity of the pulling force in the left-right direction between the first connecting piece 1a and the second connecting piece 2a, and the layer plate 5 and the cabinet body 4 are easily separated from each other in the left-right direction under the transverse pulling force.

[0229] In some embodiments, as shown in Figure 53 , Figure 54 The upper side wall and / or the lower side wall of the sliding part 22a of the third embodiment of the present application are formed with the third protruding part 221a. Specifically, the upper side wall of the sliding part 22a is formed with the third protruding part 221a, or the lower side wall of the sliding part 22a is formed with the third protruding part 221a, or both the upper and lower side walls of the sliding part 22a are formed with the third protruding part 221a. The structure and principle of the third protruding part 221a of the third embodiment of the present application are the same as those of the first protruding part 15 of the first embodiment of the present application, that is, the third protruding part 221a extends in the front-rear direction, and the third protruding part 221a includes the inverted tooth structure or the bump structure or the block structure or the strip structure, and the number of the inverted tooth structure or the bump structure or the block structure or the strip structure can be one or more. The working principle of the third protruding part 221a of the third embodiment of the present application is described in the working principle of the first protruding part 15 of the first embodiment of the present application, which is omitted here.

[0230] In some embodiments, since the second embedding groove 52 is processed by the drilling process, the second embedding groove 52 is usually processed into a runway-shaped groove or a waist-round-shaped groove. Correspondingly, the shape of the sliding part 22a is the same as that of the second embedding groove 52, that is, as shown in Figure 55 , the sliding part 22a also has a runway-shaped or waist-round-shaped shape when viewed in the left-right direction, and the upper side wall and the lower side wall of the sliding part 22a are respectively planar, so that the upper and lower side walls of the sliding part 22a and the upper and lower inner walls of the second embedding groove 52 are parallel to each other, to ensure that the sliding part 22a smoothly slides in the front-rear direction in the second embedding groove 52, so that the second connecting piece 2a as a whole smoothly slides in the second embedding groove 52. In other embodiments, in the left-right direction, the sliding part 22a can have a circular shape or a D-shaped shape, at this time, the second connecting piece 2a can also slide in the front-rear direction in the second embedding groove 52, and the sliding stability is relatively general.

[0231] The layer plate 5 and the cabinet body 4 of the third embodiment of the present application are connected by the connecting assembly of the third embodiment of the present application to form a connecting system, as shown in Figure 56 , Figure 57As shown, the connection system includes a cabinet 4, a shelf 5, a first connector 1a, and a second connector 2a. A first mounting groove 42 is formed on the left or right inner wall of the cabinet 4. The shelf 5 is disposed inside the cabinet 4 and slides in the vertical direction. A second mounting groove 52 extending in the front-back direction is formed on the side of the shelf 5 opposite to the first mounting groove 42. The first connector 1a is fixedly installed in the first mounting groove 42, and the sliding part 22a is slidably installed in the second mounting groove 52. One end of the connecting part 21a that is away from the elastic part 23a extends out of the shelf 5 and is inserted into the connecting groove 11a. When the shelf 5 slides downward relative to the cabinet 4, the connecting part 21a moves downward in the connecting groove 11a. When there is an error in the installation position of the second connector 2a in the second mounting groove 52 (or when there is a positional error of the first connector 1a on the cabinet 4), the downward-moving connector 21a will abut against the first adjustment surface 13a or the second adjustment surface 14a. When the connector 21a moves downward in the connecting groove 11a and abuts against the first adjustment surface 13a, the first adjustment surface 13a will drive the second connector 2a to slide backward in the second mounting groove 52. Alternatively, when the connector 21a moves downward in the connecting groove 11a and abuts against the second adjustment surface 14a, the second adjustment surface 14a will drive the second connector 2a to slide forward in the second mounting groove 52, thereby adjusting the second connector 2a to a suitable position so that the connector 21a can move smoothly to the lower side of the connecting groove 11a, completing the assembly process of the shelf 5 in the cabinet 4. After installation, if the shelf 5 protrudes slightly from the front of the cabinet 4, force can be applied to the shelf 5 to move the second connector 2a backward, thereby moving the shelf 5 backward and making the cabinet more aesthetically pleasing.

[0232] Furthermore, the method of removing the shelf 5 from the cabinet 4 in this embodiment 3 is the same as that in embodiment 1 above. Please refer to the description of embodiment 1 above for details.

[0233] Example 4

[0234] like Figures 58-61 As shown, Embodiment 4 of the present invention discloses a connecting component, the structure of which is similar to the connecting component structure of Embodiments 1, 2 or 3 above. The difference is that: the first connecting member 1b is slidably installed on the cabinet 4, and the second connecting member 2b is slidably installed on the shelf 5. In this way, by the cooperation between the first adjusting surface 13b or the second adjusting surface 14b of the first connecting member 1b and the connecting part 21b of the second connecting member 2b, the position of the first connecting member 1b on the cabinet 4, or the position of the second connecting member 2b on the shelf 5, or the position of the first connecting member 1b on the cabinet 4 and the position of the second connecting member 2b on the shelf 5 are adjusted, so that the shelf 5 can be smoothly installed on the cabinet 4.

[0235] Specifically, such as Figures 58-61As shown, first embedding groove extending along the front-rear direction is processed on the left or right inner wall of the cabinet body 4, and second embedding groove 52 extending along the front-rear direction is processed on the outer side wall of the layer plate 5. The position of the first embedding groove corresponds to the position of the second embedding groove 52. The connecting assembly of the present embodiment 4 comprises a first connecting piece 1b and a second connecting piece 2b. The left or right side wall of the first connecting piece 1b is formed with a connecting groove 11b. An unlocking surface 12b in an inclined shape is formed between the upper inner wall of the connecting groove 11b and the groove bottom of the connecting groove 11b. A first adjusting surface 13b gradually inclined rearward is formed on the front inner wall of the connecting groove 11b. A second adjusting surface 14b gradually inclined forward is formed on the rear inner wall of the connecting groove 11b. The first adjusting surface 13b and the second adjusting surface 14b are oppositely spaced. The first connecting piece 1b is used for being slidably installed in the first embedding groove of the cabinet body 4. The second connecting piece 2b comprises a connecting part 21b, a sliding part 22b and an elastic part 23b arranged in the sliding part 22b. One end of the elastic part 23b is connected with the sliding part 22b, and the other end of the elastic part 23b is connected with the connecting part 21b. The connecting part 21b reciprocatingly extends and retracts relative to the sliding part 22b through the elastic part 23b. The sliding part 22b is used for being slidably installed in the second embedding groove 52 of the layer plate 5. One end of the connecting part 21b away from the elastic part 23b is inserted into the connecting groove 11b. The first adjusting surface 13b is used for driving the first connecting piece 1b to slide forward and / or the second connecting piece 2b to slide rearward when the connecting part 21b moves downward and abuts against the first adjusting surface 13b. The second adjusting surface 14b is used for driving the first connecting piece 1b to slide rearward and / or the second connecting piece 2b to slide forward when the connecting part 21b moves downward and abuts against the second adjusting surface 14b.

[0236] It should be noted that the structure of the unlocking surface 12b, the first adjusting surface 13b and the second adjusting surface 14b of the first connecting piece 1b of this embodiment 4 is the same as that of the unlocking surface 12b, the first adjusting surface 13b and the second adjusting surface 14b of the above-mentioned embodiment 1, and the specific structure can be referred to the description of the above-mentioned embodiment 1, which is omitted here. The length dimension of the first embedding groove in the front-rear direction is greater than the dimension of the first connecting piece 1b in the front-rear direction, so that the first connecting piece 1b can move in the front-rear direction in the first embedding groove. The length dimension of the second embedding groove 52 in the front-rear direction is greater than the dimension of the second connecting piece 2b in the front-rear direction, so that the second connecting piece 2b can slide in the front-rear direction in the second embedding groove 52. Thus, when the layer plate 5 is installed on the cabinet body 4, the connecting part 21b abuts against the first adjusting surface 13b or the second adjusting surface 14b when sliding downward, the connecting part 21b drives the first connecting piece 1b to move forward or backward, or the first adjusting surface 13b / second adjusting surface 14b drives the second connecting piece 2b to move backward or forward, or both the connecting part 21b drives the first connecting piece 1b to move forward or backward and the first adjusting surface 13b / second adjusting surface 14b drives the second connecting piece 2b to move backward or forward, by adjusting the position of the first connecting piece 1b on the cabinet body 4 or the position of the second connecting piece 2b on the layer plate 5, so as to ensure that the connecting part 21b moves to the lower side wall of the connecting groove 11b smoothly, complete the installation of the layer plate 5, avoid the position error of the second connecting piece 2b on the layer plate 5, and avoid the need to re-drill due to difficult assembly, high fault tolerance, and the need to replace the cabinet body 4 or the layer plate 5 due to the error of the drilling.

[0237] It can be understood that when the layer plate 5 is installed, after the connecting part 21b abuts against the first adjusting surface 13b or the second adjusting surface 14b, the first connecting piece 1b can be moved forward or backward on the cabinet body 4, the second connecting piece 2b can be moved backward or forward on the layer plate 5, or both the first connecting piece 1b and the second connecting piece 2b can be moved forward or backward, which is not limited here.

[0238] Further, the structure of the first connecting piece 1b of this embodiment 4 is exactly the same as that of the first connecting piece 1 of the above-mentioned embodiment 1, and the specific structure can be referred to the description of the above-mentioned embodiment 1, which is omitted here. The structure of the second connecting piece 2b of this embodiment 4 is exactly the same as that of the second connecting piece 2a of the above-mentioned embodiment 3, and the specific structure can be referred to the description of the above-mentioned embodiment 3, which is omitted here.

[0239] The layer plate 5 and the cabinet body 4 of the embodiment 4 of the present application are connected by the connecting assembly of the embodiment 4 to form a connecting system, as shown in Figure 61As shown, the connection system comprises the cabinet body 4, the layer plate 5, the first connecting piece 1b and the second connecting piece 2b. The left or right inner wall of the cabinet body 4 is formed with a first embedding slot extending in the front-rear direction. The layer plate 5 is arranged in the cabinet body 4 and slides in the up-down direction. The side of the layer plate 5 opposite to the first embedding slot is formed with a second embedding slot 52 extending in the front-rear direction. The first connecting piece 1b is slidably arranged in the first embedding slot. The sliding part 22b is slidably arranged in the second embedding slot 52. The end of the connecting part 21b away from the elastic part 23b extends out of the layer plate 5 and is inserted into the connecting slot 11b. When the layer plate 5 slides downward relative to the cabinet body 4, the connecting part 21b moves downward in the connecting slot 11b. When there is an error in the installation position of the first connecting piece 1b in the first embedding slot or the installation position of the second connecting piece 2b in the second embedding slot 52, the downward moving connecting part 21b abuts against the first adjusting surface 13b or the second adjusting surface 14b. When the connecting part 21b moves downward in the connecting slot 11b and abuts against the first adjusting surface 13b or the second adjusting surface 14b, the connecting part 21b drives the first connecting piece 1b to move forward or backward, or the first adjusting surface 13b / second adjusting surface 14b drives the second connecting piece 2b to move backward or forward, or the connecting part 21b drives the first connecting piece 1b to move forward or backward and the first adjusting surface 13b / second adjusting surface 14b drives the second connecting piece 2b to move backward or forward at the same time. By adjusting the position of the first connecting piece 1b in the cabinet body 4 or the position of the second connecting piece 2b in the layer plate 5, the connecting part 21b can smoothly move to the lower side wall of the connecting slot 11b, and the installation of the layer plate 5 is completed. After the installation is completed, if the layer plate 5 slightly protrudes forward of the cabinet body 4, an acting force can be applied to the layer plate 5 to make the second connecting piece 2b move backward to make the layer plate 5 move backward, so that the cabinet is more beautiful.

[0240] In addition, the layer plate 5 of the fourth embodiment is detached from the cabinet body 4 in the same way as the first embodiment or the third embodiment. Please refer to the description of the first embodiment or the third embodiment for details.

[0241] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0242] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely divergences of the principles and application of the present application and that numerous modifications, changes, substitutions, and alterations can be made thereto without departing from the spirit and scope of the present application, which is defined by the following claims and their equivalents.

Claims

1. A connecting assembly for mounting a shelf in a cabinet body, wherein a mounting groove is formed in a left or right inner wall of the cabinet body, characterized in that, The connecting assembly comprises: a first connecting piece, a connecting groove is formed on the left or right side wall of the first connecting piece, an inclined unlocking surface is formed between the upper inner wall of the connecting groove and the groove bottom, a first adjusting surface gradually inclined rearward is formed on the front inner wall of the connecting groove, a second adjusting surface gradually inclined forward is formed on the rear inner wall of the connecting groove, the first adjusting surface and the second adjusting surface are oppositely arranged, and the first connecting piece is used for being slidably installed in the mounting groove of the cabinet body; and a second connecting piece, the second connecting piece comprises a connecting part, an outer cylinder part and an elastic part arranged in the outer cylinder part, one end of the elastic part is connected with the outer cylinder part, the other end of the elastic part is connected with the connecting part, the connecting part reciprocates relative to the outer cylinder part through the elastic part, the outer cylinder part is used for being fixedly installed on one side of the layer plate, and one end of the connecting part away from the elastic part is inserted into the connecting groove; wherein, when the connecting part is installed into the connecting groove and moves downward to abut to the first adjusting surface, the connecting part drives the first connecting piece to slide forward relative to the cabinet body; and when the connecting part is installed into the connecting groove and moves downward to abut to the second adjusting surface, the connecting part drives the first connecting piece to slide backward relative to the cabinet body.

2. The connection assembly of claim 1, wherein, A first protruding part is formed on the upper side wall and / or the lower side wall of the first connecting piece.

3. The connection assembly of claim 2, wherein, The first protruding part extends in the front-rear direction.

4. The connection assembly of claim 2, wherein, The first protruding part comprises at least one inverted tooth structure or a convex point structure or a convex block structure or a convex strip structure.

5. A connection assembly as claimed in any one of claims 2 to 4, wherein, The connecting assembly further comprises an insert, an expansion hole is formed on the left or right side wall of the first connecting piece, and the insert is used for being inserted into the expansion hole to make the upper side wall and / or the lower side wall of the first connecting piece expand outward.

6. The connection assembly of claim 1, wherein, The first connecting piece is formed with at least one first buckle, and the first buckle protrudes from one side of the first connecting piece away from the slot opening of the connecting groove.

7. The connection assembly of claim 1, wherein, One end of the connecting part away from the elastic part is formed with a connecting boss, the connecting boss is inserted into the connecting groove, a fastening flange is formed on the lower inner wall of the connecting groove, and the fastening flange cooperates with the connecting boss to limit the connecting boss from being pulled out or moved out of the connecting groove.

8. The connection assembly of claim 7, wherein, A clamping convex point is formed on the fastening flange.

9. The connection assembly of claim 7, wherein, The outer cylinder part is in the shape of a cylinder or a circular truncated cone, an outer thread part is formed on the outer peripheral side wall of the outer cylinder part, the outer cylinder part has a mounting channel for accommodating the elastic part and the connecting part, the cross-sectional shape of the mounting channel is the same as that of the inner circle of the sleeve, and the cross-sectional shape of the outer contour of the connecting boss is adapted to the cross-sectional shape of the sleeve.

10. The connection assembly of claim 1, wherein, When viewed in the left-right direction, the first connecting piece is in the shape of a racetrack or a waist circle, and the upper side wall and the lower side wall of the first connecting piece are respectively in the shape of a plane.

11. A connection system, characterized in that The cabinet body comprises: a cabinet body, a mounting groove extending in the front-rear direction is formed on the left or right inner wall of the cabinet body; A layer plate is arranged in the cabinet body and slides in the up-down direction, and a mounting hole extending in the left-right direction is formed on the side of the layer plate opposite to the mounting slot. The connecting assembly according to any one of claims 1-10; The first connecting piece is slidably mounted in the mounting slot, the outer cylinder portion is inserted into the mounting hole, and the end of the connecting portion away from the elastic portion protrudes outside the layer plate and is inserted into the connecting slot. When the layer plate slides downward relative to the cabinet body, the connecting portion moves downward in the connecting slot.

12. A connecting assembly for mounting a shelf in a cabinet body, wherein a mounting groove is formed in a left or right inner wall of the cabinet body, characterized in that, The connecting assembly comprises: A fixing piece, a left side wall or a right side wall of the fixing piece is formed with a sliding groove extending in the front-back direction, and the fixing piece is used for fixing mounting in the mounting slot of the cabinet body; A first connecting piece, a left side wall or a right side wall of the first connecting piece is formed with a connecting slot, an unlocking surface in an inclined shape is formed between the upper inner wall of the connecting slot and the bottom of the connecting slot, a first adjusting surface gradually inclined rearward is formed on the front inner wall of the connecting slot, a second adjusting surface gradually inclined forward is formed on the rear inner wall of the connecting slot, the first adjusting surface and the second adjusting surface are oppositely spaced, and the first connecting piece is slidably mounted in the sliding groove in the front-back direction; and A second connecting piece, the second connecting piece comprises a connecting portion, an outer cylinder portion, and an elastic portion arranged in the outer cylinder portion, one end of the elastic portion is connected with the outer cylinder portion, the other end of the elastic portion is connected with the connecting portion, the connecting portion reciprocatingly stretches and contracts relative to the outer cylinder portion through the elastic portion, the outer cylinder portion is used for fixedly mounting to one side of the layer plate, and the end of the connecting portion away from the elastic portion is inserted into the connecting slot; The first adjusting surface is used for driving the first connecting piece to slide forward in the sliding groove relative to the fixing piece when the connecting portion is mounted into the connecting slot and moves downward to abut to the first adjusting surface, and the second adjusting surface is used for driving the first connecting piece to slide rearward in the sliding groove relative to the fixing piece when the connecting portion is mounted into the connecting slot and moves downward to abut to the second adjusting surface.

13. The connection assembly of claim 12, wherein, The upper side wall of the fixing piece and / or the lower side wall of the fixing piece is formed with a connecting port in communication with the sliding groove, the first connecting piece is formed with a second protruding portion, and a part of the second protruding portion passes through the connecting port to protrude outside the fixing piece.

14. The connection assembly of claim 13, wherein, The second protruding portion extends in the front-back direction.

15. The connection assembly of claim 13, wherein, The second protruding portion comprises at least one inverted tooth structure or a bump structure or a protruding block structure or a protruding strip structure.

16. A connection assembly as claimed in any of claims 12 to 15, wherein, The connecting assembly further comprises an insert, the left side wall or the right side wall of the first connecting piece is formed with an expansion hole, and the insert is used for being inserted into the expansion hole to make the upper side wall and / or the lower side wall of the first connecting piece outwardly expand.

17. The connection assembly of claim 12, wherein, At least one first fastening protrusion is formed on the outer side wall of the fixing piece.

18. The connection assembly of claim 17, wherein, The slot bottom of the sliding slot is formed with a through hole, the first connecting piece is formed with at least one second buckle, the second buckle is protruded from the side of the first connecting piece which is away from the slot opening of the connecting slot, the second buckle is inserted into the through hole and is matched with the fixing piece for clamping.

19. The connection assembly of claim 12, wherein, The first connecting piece is formed with at least one third buckle, the third buckle is protruded from the side of the first connecting piece which is away from the slot opening of the connecting slot.

20. The connection assembly of claim 12, wherein, The end of the connecting part which is away from the elastic part is formed with a connecting boss, the connecting boss is inserted into the connecting slot; a fastening flange is formed on the lower side inner wall of the connecting slot, the fastening flange is matched with the connecting boss for limiting to prevent the connecting boss from being pulled out or moved out of the connecting slot.

21. The connection assembly of claim 20, wherein, The fastening flange is formed with a clamping protrusion.

22. The connection assembly of claim 20, wherein, The outer cylinder part is in the shape of a cylinder or a circular truncated cone, an outer thread part is formed on the outer circumferential side wall of the outer cylinder part; The outer cylinder part has a mounting channel for accommodating the elastic part and the connecting part, the cross-sectional shape of the mounting channel is the same as the cross-sectional shape of the inner ring of the sleeve, and the cross-sectional shape of the connecting boss is adapted to the cross-sectional shape of the sleeve.

23. The connection assembly of claim 12, wherein, When viewed in the left-right direction, the sliding slot is in the shape of a runway or a waist circle, the upper side inner wall and the lower side inner wall of the sliding slot are respectively in the shape of a plane, and the shape of the first connecting piece is adapted to the shape of the sliding slot.

24. A connection system characterized in that It comprises: a cabinet body, a mounting slot is formed on the left side inner wall or the right side inner wall of the cabinet body; a layer plate, the layer plate is arranged in the cabinet body and slides in the up-down direction, and a mounting hole extending in the left-right direction is formed on the side of the layer plate which is opposite to the mounting slot; and the connecting assembly according to any one of claims 12-23; wherein the fixing piece is fixedly installed in the mounting slot, the outer cylinder part is inserted into the mounting hole, and the end of the connecting part which is away from the elastic part protrudes out of the layer plate and is inserted into the connecting slot; when the layer plate slides downward relative to the cabinet body, the connecting part moves downward in the connecting slot.

25. A connecting assembly for mounting a panel in a cabinet, a first recess being formed in a left or right inner wall of the cabinet, and a second recess being formed in an outer wall of the panel, wherein, The connecting assembly comprises: a first connecting piece, a connecting slot is formed on the left side wall or the right side wall of the first connecting piece, an unlocking surface in the shape of an inclination is formed between the upper side inner wall of the connecting slot and the slot bottom of the connecting slot, a first adjusting surface which gradually inclines backward is formed on the front side inner wall of the connecting slot, a second adjusting surface which gradually inclines forward is formed on the rear side inner wall of the connecting slot, the first adjusting surface and the second adjusting surface are oppositely spaced, and the first connecting piece is used for being fixedly installed in a first embedded slot of a cabinet body; and a second connecting piece, the second connecting piece comprises a connecting part, a sliding part and an elastic part arranged in the sliding part, one end of the elastic part is connected with the sliding part, the other end of the elastic part is connected with the connecting part, the connecting part reciprocatingly stretches and shrinks relative to the sliding part through the elastic part, the sliding part is used for being slidably installed in a second embedded slot of a layer plate, and the end of the connecting part which is away from the elastic part is inserted into the connecting slot. The first adjusting surface is configured to drive the second connecting member to slide backward relative to the layer plate when the connecting portion is installed into the connecting slot and moves downward to abut against the first adjusting surface.

26. The connection assembly of claim 25, wherein, At least one fastening protrusion is formed on the outer side wall of the first connecting member.

27. The connection assembly of claim 25, wherein, The first connecting member has a circular shape when viewed in the left-right direction. A positioning portion is formed on the outer side wall of the first connecting member. The center axis of the positioning portion is not in the same line as the center axis of the first connecting member.

28. The connection assembly of claim 25, wherein, The connecting portion has a connecting boss at one end away from the elastic portion, which is inserted into the connecting slot.

29. The connection assembly of claim 28, wherein, A fastening flange is formed on the lower inner wall of the connecting slot, which cooperates with the connecting boss to limit the pulling out or moving out of the connecting boss from the connecting slot.

30. The connection assembly of claim 25, wherein, The fastening flange has a clamping protrusion.

31. The connection assembly of claim 30, wherein, A third protrusion is formed on the upper side wall and / or lower side wall of the sliding portion.

32. The connection assembly of claim 30, wherein, The third protrusion extends in the front-rear direction.

33. The connection assembly of claim 25, wherein, The third protrusion includes at least one inverted tooth structure, protrusion structure, bump structure, or protrusion strip structure.

34. A connection system characterized by The sliding portion has a runway shape or waist circle shape when viewed in the left-right direction, and the upper side wall and lower side wall of the sliding portion have a planar shape, respectively. It includes: A cabinet body, which has a first embedded slot formed on the left inner wall or right inner wall thereof; A layer plate, which is arranged in the cabinet body and slides in the up-down direction, and has a second embedded slot extending in the front-rear direction on the side opposite to the first embedded slot; and The connecting assembly according to any one of claims 25-33; The first connecting member is fixedly installed in the first embedded slot, the sliding portion is slidably installed in the second embedded slot, and one end of the connecting portion away from the elastic portion extends out of the layer plate and is inserted into the connecting slot.

35. A connecting assembly for mounting a panel in a cabinet, a first recess being formed in a left or right inner wall of the cabinet, and a second recess being formed in an outer wall of the panel, wherein, When the layer plate slides downward relative to the cabinet body, the connecting portion moves downward in the connecting slot. The connecting assembly includes: A first connecting member, which has a connecting slot formed on the left inner wall or right inner wall thereof, and an unlocking surface formed between the upper inner wall of the connecting slot and the bottom of the connecting slot in an inclined manner, a first adjusting surface formed on the front inner wall of the connecting slot and gradually inclined backward, and a second adjusting surface formed on the rear inner wall of the connecting slot and gradually inclined forward, the first adjusting surface and the second adjusting surface being oppositely spaced apart, and the first connecting member being configured to be slidably installed in a first embedded slot of a cabinet body; and The second connecting piece comprises a connecting part, a sliding part and an elastic part arranged in the sliding part, one end of the elastic part is connected with the sliding part, the other end of the elastic part is connected with the connecting part, the connecting part is reciprocatingly extended and contracted relative to the sliding part through the elastic part, the sliding part is used for being slidably arranged in the second embedding groove of the layer plate, one end of the connecting part away from the elastic part is inserted into the connecting groove; The first adjusting surface is used for driving the first connecting piece to slide forward relative to the cabinet and / or driving the second connecting piece to slide backward relative to the layer plate when the connecting part is arranged in the connecting groove and moves downward to abut against the first adjusting surface. The second adjusting surface is used for driving the first connecting piece to slide backward relative to the cabinet and / or driving the second connecting piece to slide forward relative to the layer plate when the connecting part is arranged in the connecting groove and moves downward to abut against the second adjusting surface.

36. The connection assembly of claim 35, wherein, The upper side wall and / or the lower side wall of the first connecting piece is provided with a first protruding part.

37. The connection assembly of claim 36, wherein, The connecting assembly further comprises an insert, the left side wall or the right side wall of the first connecting piece is provided with an expansion hole, and the insert is used for being inserted into the expansion hole to make the upper side wall and / or the lower side wall of the first connecting piece expand outward.

38. The connection assembly of claim 35, wherein, One end of the connecting part away from the elastic part is provided with a connecting boss, and the connecting boss is inserted into the connecting groove; a fastening flange is formed on the lower inner wall of the connecting groove, and the fastening flange is matched with the connecting boss to limit the connecting boss from being pulled out or moved out of the connecting groove.

39. The connection assembly of claim 38, wherein, The fastening flange is provided with a clamping protruding point.

40. The connection assembly of claim 35, wherein, When viewed in the left-right direction, the first connecting piece is in a runway shape or a waist circle shape, and the upper side wall and the lower side wall of the first connecting piece are respectively in a planar shape.

41. The connection assembly of claim 35, wherein, The upper side wall and / or the lower side wall of the sliding part is provided with a third protruding part.

42. The connection assembly of claim 35, wherein, When viewed in the left-right direction, the sliding part is in a runway shape or a waist circle shape, and the upper side wall and the lower side wall of the sliding part are respectively in a planar shape.

43. A connection system characterized by The cabinet comprises: A cabinet, the left inner wall or the right inner wall of the cabinet is provided with a first embedding groove extending in the front-rear direction; A layer plate, the layer plate is arranged in the cabinet and slides in the up-down direction, and the side of the layer plate opposite to the first embedding groove is provided with a second embedding groove extending in the front-rear direction; And The connecting assembly according to any one of claims 35-42; The first connecting piece is slidably arranged in the first embedding groove, the sliding part is slidably arranged in the second embedding groove, and one end of the connecting part away from the elastic part extends out of the layer plate and is inserted into the connecting groove; When the layer plate slides downward relative to the cabinet, the connecting part moves downward in the connecting groove.

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