A non-hole connection structure of a plate and a cabinet

Abstract

The utility model discloses a non-porous connection structure of a plate and a cabinet, belonging to the technical field of furniture production. The non-porous connection structure of the plate includes a transverse plate and a side plate. The connecting side of the transverse plate is fixedly connected to the connecting surface of the side plate through a plurality of connection components; the connection component includes an expansion sleeve and a connecting rod; the expansion sleeve includes an integrally formed main section and a card embedding section, the card embedding section includes a plurality of side walls, and the end of each side wall away from the main section includes an outward-turned portion, the connecting rod includes a coarse thread, a limit column and a hemispherical end, and the limit column includes a plug-in section, a connecting section, and a conical section. The cabinet includes a plurality of transverse plates and a plurality of side plates, and the transverse plates and the side plates are assembled and fixed by a connection structure, and the connection structure adopts the non-porous connection structure of the plate. After the assembly is completed by adopting the utility model, there are no exposed holes on the surface of the plate, and the structure is simple, the assembly is convenient and quick, and can be completed without consuming a lot of manpower, and the disassembly is also convenient and quick, and there is no damage to the plate.

Description

Technical Field

[0001] The utility model relates to the technical field of furniture production, and more specifically, to a non-porous connection structure of a plate and a cabinet body. Background Art

[0002] In custom-made furniture, connectors can fix adjacent panels together. The conventional process is to use three-in-one connectors. This process is to embed nuts in the side panels, screw the screws into the nuts, embed the eccentric wheels in the cross panels, insert the screws through the cross panels into the eccentric wheels, and rotate the eccentric wheels to lock the panels. However, after the connectors of the above process are installed, the eccentric wheel holes will be exposed, affecting the appearance. Moreover, this type of connector only has a locking function and needs to be used with a wooden tip with a positioning function, and the assembly process is cumbersome.

[0003] In the existing furniture assembly process, in order to improve the aesthetics of the assembled furniture, some furniture connector structures are also designed. For example, the application document with Chinese patent application number 202223223315.1 and application date December 2, 2022 discloses a microporous plate connector for furniture, including a connector and a connecting rod, the connector including a cylinder, a limiting portion is provided on the outer wall of the cylinder, a locking hole is provided on the outer wall of the cylinder, a locking bolt is threadedly connected in the locking hole, and the connecting rod includes a rod body with a connecting portion at one end and a conical head at the other end. A first mounting hole is opened on the side wall of plate A, a second mounting hole is opened on the front of plate A, and a slotted hole is opened on the front of plate B. Then, the connector is installed and fixed into the first mounting hole, the connecting rod is fixed in the slotted hole on plate B, the locking bolt is inserted from the second mounting hole and threadedly connected in the locking hole, the locking bolt abuts against the conical surface of the conical head, pushes the conical head to move and pulls plate B to fit tightly against the side wall of plate A. After the plates A and B are connected, only the second mounting hole is left exposed, which has the advantage of improving the aesthetic effect of the assembled furniture. However, when the plate connector is used to assemble the plates, it is still necessary to drill a second mounting hole corresponding to the locking hole on the cylinder on the front or back of the plate A. Although the second mounting hole can be understood as a micro hole, it still affects the aesthetics of the assembled furniture.

[0004] Therefore, there is an urgent need to provide a non-porous connection structure and a cabinet for panels that will not leave any holes on the surface of the panels after assembly, ensuring that there are no exposed holes, and that has a simple structure and is convenient and quick to assemble and disassemble. Utility Model Content

[0005] In view of this, the utility model provides a hole-free connection structure and a cabinet body to solve the problems in the prior art that the connection parts used for furniture assembly have complex structures, cumbersome operations, and it is difficult to effectively ensure the aesthetics after assembly.

[0006] The utility model discloses a non-hole connection structure of a plate, comprising a horizontal plate and a side plate, wherein the plane where the horizontal plate is located is perpendicular to the plane where the side plate is located; the side of the horizontal plate facing the side plate is a horizontal plate connection side surface, and the side of the side plate facing the horizontal plate is a side plate connection surface; the horizontal plate connection side surface and the side plate connection surface are fixedly connected by a plurality of connection components;

[0007] The connection assembly includes an expansion casing and a connecting rod;

[0008] A plurality of grooves are provided on the periphery of the expansion sleeve, the grooves are arranged around the expansion sleeve, the plurality of grooves are arranged in sequence along the length extension direction of the expansion sleeve, and the depth of the grooves is less than the thickness of the expansion sleeve;

[0009] Along the length extension direction of the expansion sleeve, the expansion sleeve includes an integrally formed main section and a clamping section, the main section is a hollow cylindrical cavity structure, and the clamping section is a hollow conical cavity structure; along the direction from the main section to the clamping section, the inner diameter of the clamping section gradually decreases;

[0010] The clamping segment includes a plurality of side walls, which surround the periphery of the expansion sleeve and are arranged at intervals; one end of each side wall away from the main segment includes an outward-turned portion, and the outward-turned portion is folded in a direction away from the cavity structure of the clamping segment;

[0011] One end of the connecting rod includes a coarse thread, and the other end of the connecting rod includes a hemispherical end portion, and a locking groove is formed in the hemispherical end portion;

[0012] A limiting column is included between the coarse thread and the hemispherical end of the connecting rod, and points along the coarse thread toward the hemispherical end. The limiting column includes a plug-in section close to the coarse thread, a tapered section close to the hemispherical end, and a connecting section between the plug-in section and the tapered section. The plug-in section, the connecting section and the tapered section are integrally formed.

[0013] The connecting section is cylindrical, and the plug-in section is circular frustum-shaped. Along the direction from the coarse thread to the hemispherical end, the outer diameter of the plug-in section gradually decreases, the minimum outer diameter of the plug-in section is greater than the outer diameter of the connecting section, and the maximum outer diameter of the plug-in section is equal to the inner diameter of the main section; along the direction from the coarse thread to the hemispherical end, the outer diameter of the tapered section gradually increases;

[0014] A positioning boss is arranged on one side of the plug-in section close to the coarse thread, and the positioning boss is arranged around the periphery of the plug-in section.

[0015] Optionally, the side surface of the cross plate connection includes multiple cylindrical grooves, the expansion sleeve is embedded in the cylindrical groove, the coarse thread of the connecting rod is screwed into the side plate connection surface through the locking groove, and the structure of the connecting rod other than the coarse thread is inserted into the expansion sleeve.

[0016] Optionally, a plurality of positioning grooves are provided on the connecting surface of the side plate, and the depth of the positioning grooves is greater than or equal to the length of the coarse thread.

[0017] Optionally, the maximum outer diameter of the tapered section is greater than the minimum inner diameter of the card segment, and the minimum outer diameter of the plug-in section is greater than the minimum inner diameter of the card segment.

[0018] Optionally, the expansion sleeve is formed by bending a steel sheet.

[0019] Optionally, the outward-turned portion forms an angle α with the side wall, wherein 90 degrees ≤ α ≤ 150 degrees.

[0020] Optionally, the locking groove includes any one of a cross groove, a slotted groove, or a Pozidriv groove.

[0021] Optionally, along the extension direction of the connecting rod, the length of the coarse thread ranges from 6 to 8 mm.

[0022] Optionally, one end of the main body section away from the clamping section comprises an opening, and the opening extends along the length direction of the expansion sleeve.

[0023] Based on the same concept, the utility model also discloses a cabinet body, including a plurality of transverse panels and a plurality of side panels, wherein the transverse panels and the side panels are assembled and fixed by a connecting structure, and the connecting structure adopts the non-porous connecting structure of the above-mentioned panels.

[0024] Compared with the prior art, the non-hole connection structure and cabinet provided by the utility model achieve at least the following beneficial effects:

[0025] The non-hole connection structure of the plate provided by the utility model can achieve the effect of non-hole connection and fixing of the horizontal plate and the side plate through multiple connection components. When assembling the horizontal plate and the side plate, a screwdriver or other tool is used to apply force to the locking groove of the hemispherical end of the connecting rod to assist in screwing the coarse thread of the connecting rod into the positioning groove reserved on the side plate connection surface of the side plate, so that the connecting rod and the positioning groove correspond to each other one by one. At the same time, the expansion sleeves are respectively embedded in the cylindrical grooves of the horizontal plate, and finally the side plate with the connecting rod and the horizontal plate with the expansion sleeve are brought close, the connecting rod is aligned with the expansion sleeve, and the side plate is knocked with a rubber hammer or other knocking tool, so that the hemispherical end of the connecting rod can pass through the narrow embedding section of the expansion sleeve, and the other parts of the connecting rod except the coarse thread are all extended into the expansion sleeve. Finally, part of the conical section and the hemispherical end of the connecting rod extend from the embedding section, and the outward-turned part of the side wall away from the end of the main section can facilitate the embedding section of the expansion sleeve to be stretched open by the hemispherical end of the connecting rod, so that the hemispherical end of the connecting rod can more easily pass through the narrow embedding section of the expansion sleeve. The frustum-shaped plug-in section design can make the connecting rod easier to insert. The maximum outer diameter of the plug-in section is equal to the inner diameter of the main section of the expansion sleeve, so that after the connecting rod is plugged into the expansion sleeve, the maximum outer diameter position of the plug-in section can abut against the inner wall of the main section of the expansion sleeve, ensuring the firmness and reliability of the connecting rod after being plugged into the expansion sleeve. The positioning boss at the end of the plug-in section can also be against the inner wall of the main section, and the connecting rod can be firmly plugged into the expansion sleeve without being easily loosened, thereby completing the firm assembly of the horizontal plate and the side plate. The utility model adopts a structure of a horizontal plate and a side plate assembled by a connecting assembly, and the connecting assembly can be completely hidden, without any exposed holes on the surface of the plate, and the connecting assembly has a simple structure, and the assembly of the horizontal plate and the side plate is convenient and quick, and can be completed without consuming a lot of manpower; and when disassembling, only a rubber hammer or other knocking tool is needed to knock the side plate in the opposite direction to complete the disassembly of the horizontal plate and the side plate, and the disassembly is also convenient and quick, and there is no damage to the plate.

[0026] Of course, any product implementing the present utility model does not necessarily need to achieve all of the above-mentioned technical effects at the same time.

[0027] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0029] Figure 1 This is a structural schematic diagram of a non-porous connection structure of a plate provided in an embodiment of the utility model;

[0030] Figure 2 yes Figure 1 A schematic diagram of the perspective structure at J1 in the middle;

[0031] Figure 3 yes Figure 2 A structural schematic diagram of the connecting components;

[0032] Figure 4 yes Figure 3 A structural schematic diagram of a middle expansion casing;

[0033] Figure 5 yes Figure 3 A structural schematic diagram of a connecting rod;

[0034] Figure 6 yes Figure 4 A schematic diagram of a three-dimensional structure of the expansion casing;

[0035] Figure 7 yes Figure 4 A schematic diagram of a cross-sectional structure in which the middle expansion sleeve is embedded in the transverse plate;

[0036] Figure 8 yes Figure 5 A schematic diagram of a cross-sectional structure in which the middle connecting rod is inserted into the side plate;

[0037] Fig. 9 yes Figure 5 Another cross-sectional structural diagram of a middle connecting rod inserted into a side plate;

[0038] Fig.10 yes Figure 4 Another schematic diagram of the three-dimensional structure of the middle expansion casing;

[0039] Fig.11 This is a structural schematic diagram of a cabinet provided by an embodiment of the utility model;

[0040] Fig.12 yes Fig.11 Exploded diagram of the split structure;

[0041] Fig.13 yes Fig.12 A schematic diagram of the structure after the middle expansion sleeve is plugged into the horizontal plate, and the connecting rod is plugged into the side plate;

[0042] Fig.14 yes Fig.12 A schematic diagram of the process of inserting the middle connecting rod into the expansion casing;

[0043] Fig.15 yes Fig.12 Schematic diagram of the three-dimensional structure of the cabinet after assembly. DETAILED DESCRIPTION

[0044] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0045] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0046] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0047] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0048] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0049] Embodiment 1

[0050] Please refer to Figure 1-Figure 5 , Figure 1 This is a structural schematic diagram of a non-porous connection structure of a plate provided by an embodiment of the utility model. Figure 2 yes Figure 1 The perspective structure diagram of J1 in the middle. Figure 3 yes Figure 2 A schematic diagram of the structure of the connected components. Figure 4 yes Figure 3 A structural diagram of the expansion casing. Figure 5 yes Figure 3 A structural schematic diagram of a connecting rod in the middle, a non-porous connecting structure 000 of a plate provided in this embodiment, comprising a transverse plate 10 and a side plate 20, the plane where the transverse plate 10 is located is perpendicular to the plane where the side plate 20 is located; the side of the transverse plate 10 facing the side plate 20 is the transverse plate connecting side surface 10A, and the side of the side plate 20 facing the transverse plate 10 is the side plate connecting surface 20A; the transverse plate connecting side surface 10A is fixedly connected to the side plate connecting surface 20A by a plurality of connecting components 30;

[0051] The connection assembly 30 includes an expansion sleeve 30A and a connection rod 30B;

[0052] A plurality of grooves 30AK are provided on the periphery of the expansion sleeve 30A. The grooves 30AK are arranged around the expansion sleeve 30A. The plurality of grooves 30AK are arranged in sequence along the length extension direction X of the expansion sleeve 30A. The depth D1 of the grooves 30AK is less than the thickness D0 of the expansion sleeve 30A (it can be understood that the thickness D0 of the expansion sleeve 30A here refers to the wall thickness of the expansion sleeve 30A);

[0053] Along the length extension direction X of the expansion sleeve 30A, the expansion sleeve 30A includes an integrally formed main section 30A1 and a clamping section 30A2, the main section 30A1 is a hollow cylindrical cavity structure, and the clamping section 30A2 is a hollow conical cavity structure; along the direction from the main section 30A1 to the clamping section 30A2, the inner diameter L1 of the clamping section 30A2 gradually decreases;

[0054] The clamping segment 30A2 includes a plurality of side walls 30A20, which surround the periphery of the expansion sleeve 30A and are arranged at intervals; one end of each side wall 30A20 away from the main segment 30A1 includes an outward-turned portion 30A201, and the outward-turned portion 30A201 is folded in a direction away from the cavity structure of the clamping segment 30A2;

[0055] One end of the connecting rod 30B includes a coarse thread 30B1, and the other end of the connecting rod 30B includes a hemispherical end 30B2, and the hemispherical end 30B2 is provided with a locking groove 30B2K;

[0056] A limiting column 30B3 is included between the coarse thread 30B1 and the hemispherical end 30B2 of the connecting rod 30B, and points along the coarse thread 30B1 to the hemispherical end 30B2. The limiting column 30B3 includes an inserting section 30B31 close to the coarse thread 30B1, a tapered section 30B32 close to the hemispherical end 30B2, and a connecting section 30B33 located between the inserting section 30B31 and the tapered section 30B32. The inserting section 30B31, the connecting section 30B33 and the tapered section 30B32 are integrally formed.

[0057] The connecting section 30B33 is cylindrical, and the plug section 30B31 is frustum-shaped. Along the coarse thread 30B1 pointing to the direction of the hemispherical end 30B2, the outer diameter L3 of the plug section 30B31 gradually decreases, and the minimum outer diameter L3 of the plug section min The maximum outer diameter L3 of the plug-in section 30B31 is larger than the outer diameter L2 of the connecting section 30B33. max Equal to the inner diameter L0 of the main body section 30A1; along the direction of the coarse thread 30B1 pointing to the hemispherical end 30B2, the outer diameter L4 of the tapered section 30B32 gradually increases;

[0058] A positioning boss 30B311 is provided on one side of the plug-in section 30B31 close to the coarse thread 30B1 , and the positioning boss 30B311 is provided around the periphery of the plug-in section 30B31 .

[0059] Specifically, the non-porous connecting structure 000 of the plates provided in this embodiment can be used for mutual assembly and fixing of plates in the furniture assembly process. The non-porous connecting structure 000 of the plates includes a horizontal plate 10 and a side plate 20. The horizontal plate 10 can be understood as a horizontal plate in a piece of furniture, and the side plate 20 can be understood as a vertical plate in the piece of furniture. Figure 1 As shown, the plane where the horizontal plate 10 is located is perpendicular to the plane where the side plate 20 is located. The side of the horizontal plate 10 facing the side plate 20 is the horizontal plate connecting side surface 10A, and the side of the side plate 20 facing the horizontal plate 10 is the side plate connecting surface 20A. The horizontal plate connecting side surface 10A and the side plate connecting surface 20A can be understood as the surfaces that are attached to each other after the horizontal plate 10 and the side plate 20 are assembled and fixed.

[0060] like Figure 2 As shown, when the cross plate 10 and the side plate 20 are assembled, the cross plate connecting side surface 10A and the side plate connecting surface 20A are fixedly connected through a plurality of connecting components 30. It can be understood that Figure 2 Only one connecting assembly 30 is shown in the figure. In a specific implementation, a plurality of connecting assemblies 30 may be arranged side by side along the fixing position of the cross plate connecting side surface 10A and the side plate connecting surface 20A to ensure the assembly stability of the cross plate 10 and the side plate 20.

[0061] like Figure 2 and Figure 3 As shown, the connection assembly 30 includes an expansion sleeve 30A and a connecting rod 30B; wherein, the expansion sleeve 30A is used to be embedded in a cylindrical groove 10AK opened on the side surface 10A of the cross plate connection, and the connecting rod 30B is used to be screwed into a positioning groove 20AK opened on the side plate connection surface 20A. In this embodiment, the cylindrical groove 10AK opened on the cross plate 10 and the positioning groove 20AK opened on the side plate 20 are not described in detail, and the details can be understood by referring to the description of the subsequent embodiments.

[0062] like Figure 3As shown, a plurality of grooves 30AK are provided on the periphery of the expansion sleeve 30A, and the grooves 30AK are arranged around the expansion sleeve 30A. The plurality of grooves 30AK are arranged in sequence along the length extension direction X of the expansion sleeve 30A, and the depth D1 of the grooves 30AK is less than the thickness D0 of the expansion sleeve 30A (it can be understood that the thickness D0 of the expansion sleeve 30A here refers to the wall thickness of the expansion sleeve 30A). By providing a plurality of grooves 30AK on the periphery of the expansion sleeve 30A, and the grooves 30AK do not penetrate the wall thickness of the expansion sleeve 30A, a rough concave-convex texture can be formed on the periphery of the expansion sleeve 30A, thereby enhancing the friction force when the expansion sleeve 30A is embedded in the cylindrical groove 10AK provided on the side surface 10A of the horizontal plate connection, thereby improving the stability of the expansion sleeve 30A insertion.

[0063] Along the length extension direction X of the expansion sleeve 30A, the expansion sleeve 30A includes an integrally formed main section 30A1 and a clamping section 30A2, the main section 30A1 is a hollow cylindrical cavity structure, and the clamping section 30A2 is a hollow conical cavity structure. When the portion of the connecting rod 30B other than the coarse thread 30B1 is inserted into the expansion sleeve 30A, the main section 30A1 is used to accommodate the plug-in section 30B31 at the end of the limiting column 30B3 of the connecting rod 30B, and the clamping section 30A2 is used to accommodate the connecting section 30B33 of the middle part of the limiting column 30B3 of the connecting rod 30B, and the connecting rod 30B is inserted into the expansion sleeve 30A. The conical section 30B32 at the other end of the limiting column 30B3 of 0B and the hemispherical end 30B2 of the connecting rod 30B can extend from the locking segment 30A2. Since the inner diameter L1 of the locking segment 30A2 gradually decreases along the direction of the main section 30A1 pointing to the locking segment 30A2, it is equivalent to that the expansion sleeve 30A is a secondary expansion structure. The space of the locking segment 30A2 is smaller than the space of the main section 30A1. Therefore, after the hemispherical end 30B2 of the connecting rod 30B extends out of the locking segment 30A2, it can be just stuck, so that the connecting rod 30B and the expansion sleeve 30A are firmly clamped in the cylindrical groove 10AK.

[0064] like Figure 4 and Figure 6 As shown, Figure 6 yes Figure 4A schematic diagram of a three-dimensional structure of an expansion sleeve in the middle, the locking segment 30A2 includes a plurality of side walls 30A20, and the plurality of side walls 30A20 surround the periphery of the expansion sleeve 30A and are arranged at intervals. It can be understood that the locking segment 30A2 can be divided into a plurality of (such as 4 or 6) side walls 30A20, and the plurality of side walls 30A20 are arranged around, and a certain gap is left between two adjacent side walls 30A20 to ensure that when the hemispherical end 30B2 of the connecting rod 30B extends out of the locking segment 30A2, the plurality of side walls 30A20 can be opened, and after the hemispherical end 30B2 of the connecting rod 30B extends out of the locking segment 30A2, the plurality of side walls 30A20 can retract by their own elastic force to clamp the hemispherical end 30B2 outside the locking segment 30A2. The end of each side wall 30A20 away from the main section 30A1 includes an outward-turned portion 30A201, which is folded in the direction of the cavity structure away from the clamping segment 30A2. The outward-turned portion 30A201 is used to enable each side wall 30A20 to continue to move in the direction of the cavity structure away from the clamping segment 30A2 when the hemispherical end 30B2 of the connecting rod 30B extends out of the clamping segment 30A2, so as to facilitate the clamping segment 30A2 of the expansion sleeve 30A to be stretched open by the hemispherical end 30B2 of the connecting rod 30B, so that the hemispherical end 30B2 of the connecting rod 30B can more easily pass through the narrow clamping segment 30A2 of the expansion sleeve 30A.

[0065] Optionally, the outer diameter of the main section 30A1 of the expansion sleeve 30A in the present embodiment may be slightly larger than the inner diameter of the cylindrical groove 10AK. For example, the outer diameter of the main section 30A1 is 0.5 mm larger than the inner diameter of the cylindrical groove 10AK. When the expansion sleeve 30A is inserted into the cylindrical groove 10AK, the expansion sleeve 30A may be interference filled in the cylindrical groove 10AK, thereby further ensuring the fixing effect of the expansion sleeve 30A in the cylindrical groove 10AK.

[0066] like Figure 3 and Figure 5 As shown, one end of the connecting rod 30B includes a coarse thread 30B1. The design of the coarse thread 30B1 makes it unnecessary to embed a nut in the side plate connection surface 20A of the side plate 20, and only a positioning groove 20AK is required to indicate the position where the connecting rod 30B needs to be fixed on the side plate 20. The other end of the connecting rod 30B includes a hemispherical end 30B2. The hemispherical end 30B2 is provided with a locking groove 30B2K. The locking groove 30B2K is used as a fulcrum for tools such as a screwdriver to assist in screwing the coarse thread 30B of the connecting rod 30B into the positioning groove 20AK reserved on the side plate connection surface 20A of the side plate 20.

[0067] A limiting column 30B3 is included between the coarse thread 30B1 and the hemispherical end 30B2 of the connecting rod 30B, and the limiting column 30B3 includes an inserting section 30B31 close to the coarse thread 30B1, a tapered section 30B32 close to the hemispherical end 30B2, and a connecting section 30B33 located between the inserting section 30B31 and the tapered section 30B32. The inserting section 30B31, the connecting section 30B33 and the tapered section 30B32 are integrally formed, the inserting section 30B31 corresponds to the main section 30A1 of the expansion sleeve 30A, the tapered section 30B32 corresponds to the clamping section 30A2 of the expansion sleeve 30A, and the connecting section 30B33 plays a connecting role. The structure of the integrally formed connecting rod 30B can further ensure the overall assembly firmness. The connecting section 30B33 is cylindrical, and the plug section 30B31 is a circular frustum. Along the coarse thread 30B1 pointing to the direction of the hemispherical end 30B2, the outer diameter L3 of the plug section 30B31 gradually decreases, and the minimum outer diameter L3 of the plug section min The maximum outer diameter L3 of the plug-in section 30B31 is larger than the outer diameter L2 of the connecting section 30B33. max The inner diameter L0 of the main body section 30A1 is equal to that of the cylindrical connecting section 30B33, which can be better filled in the expansion sleeve 30A, so that the limit column 30B3 of the connecting rod 30B is more tightly embedded in the expansion sleeve 30A. The plug-in section 30B31 is designed to be a cone, and the outer diameter L3 of the plug-in section 30B31 gradually decreases along the direction of the coarse thread 30B1 pointing to the hemispherical end 30B2, that is, the outer diameter of the plug-in section 30B31 close to the coarse thread 30B1 is large, and the outer diameter of the end away from the coarse thread 30B1 is small. The cone-shaped plug-in section 30B31 design can make the connecting rod 30B easier to insert. In this embodiment, the end of the limiting column 30B3 close to the hemispherical end 30B2 is provided with a conical section 30B32, so that after the conical section 30B32 and the hemispherical end 30B2 of the connecting rod 30B extend out from the clamping section 30A2 of the expansion sleeve 30A, part of the conical section 30B32 and the hemispherical end 30B2 are just clamped in the clamping section 30A2, and the connecting rod 30B will not retract. Specifically, along the direction from the coarse thread 30B1 to the hemispherical end 30B2, the outer diameter L4 of the tapered section 30B32 gradually increases, that is, the closer to the hemispherical end 30B2, the larger the outer diameter L4 of the tapered section 30B32, and the closer to the hemispherical end 30B2, the thicker the tapered section 30B32. This allows the tapered section 30B32 and the hemispherical end 30B2 of the connecting rod 30B to extend from the clamping section 30A2 of the expansion sleeve 30A, so that part of the tapered section 30B32 and the hemispherical end 30B2 are just clamped in the clamping section 30A2, and the connecting rod 30B will not retract, so that the connecting rod 30B and the expansion sleeve 30A are firmly plugged into the cylindrical groove 10AK.

[0068] This embodiment also sets the minimum outer diameter L3 of the plug-in section 30B31 min The maximum outer diameter L3 of the plug-in section 30B31 is greater than the outer diameter L2 of the connecting section 30B33, which can prevent the plug-in section 30B31 of the connecting rod 30B from being pushed out of the clamping section 30A2. max The inner diameter L0 of the main body section 30A1 is equal to that of the connecting rod 30B and the expansion sleeve 30A, so that after the connecting rod 30B is plugged into the expansion sleeve 30A, the maximum outer diameter L3 of the plug-in section 30B31 max The position can abut against the inner wall of the main section 30A1 of the expansion casing 30A, ensuring the firmness and reliability of the connecting rod 30B after being inserted into the expansion casing 30A.

[0069] like Figure 3 and Figure 5 As shown, in the connecting rod 30B of the present embodiment, a positioning boss 30B311 is provided on one side of the plug-in section 30B31 close to the coarse thread 30B1, and the positioning boss 30B311 is arranged around the periphery of the plug-in section 30B31. When the connecting rod 30B is inserted into the expansion sleeve 30A, the positioning boss 30B311 can be completely buried in the end of the main section 30A1 of the expansion sleeve 30A, that is, the positioning boss 30B311 can play a good effect of tightly abutting against the inner wall of the main section 30A1 of the expansion sleeve 30A, which can better ensure the firmness and reliability of the connecting rod 30B after being inserted into the expansion sleeve 30A.

[0070] When the non-porous connection structure 000 of the plate provided in this embodiment is used, the effect of non-porous connection and fixing of the horizontal plate 10 and the side plate 20 can be achieved through multiple connection components 30. When assembling the horizontal plate 10 and the side plate 20, firstly, a positioning groove 20AK is reserved at the position where the connecting rod 30B needs to be screwed into the side plate connection surface 20A of the side plate 20, and then a screwdriver or other tool is used to apply force to the locking groove 30B2K of the hemispherical end 30B2 of the connecting rod 30B to assist in screwing the coarse thread 30B of the connecting rod 30B into the positioning groove 20AK reserved on the side plate connection surface 20A of the side plate 20, so that the connecting rod 30B and the positioning groove 20AK can be screwed in one by one. At the same time, a plurality of cylindrical grooves 10AK are opened on the horizontal plate connection side surface 10A of the horizontal plate 10, and the spacing between two adjacent cylindrical grooves 10AK is consistent with the spacing between two adjacent positioning grooves 20AK, and then the expansion sleeves 30A are respectively embedded in the cylindrical grooves 10AK of the horizontal plate 10. Finally, the side plate 20 with the connecting rod 30B and the transverse plate 10 with the expansion sleeve 30A are brought closer together, so that the connecting side surface 10A of the transverse plate and the connecting surface 20A of the side plate are closer and closer. Then, the connecting rod 30B is aligned with the expansion sleeve 30A, and the side plate 20 is struck with a striking tool such as a rubber hammer, so that the hemispherical end 30B2 of the connecting rod 30B passes through the narrow clamping section 30A2 of the expansion sleeve 30A, and the other parts of the connecting rod 30B except the coarse thread 30B1 are all extended into the expansion sleeve 30A. Finally, the part of the conical section 30B32 of the limiting column 30B3 of the connecting rod 30B and the hemispherical end 30B2 of the connecting rod 30B extend out from the clamping section 30A2, and the outward turning part 30A201 of the end of the side wall 30A20 away from the main section 30A1 can facilitate the clamping section 30A2 of the expansion sleeve 30A to be opened by the hemispherical end 30B2 of the connecting rod 30B, so that the hemispherical end 30B2 of the connecting rod 30B can more easily pass through the narrow clamping section 30A2 of the expansion sleeve 30A. The positioning boss 30B311 at the end of the plug-in section 30B31 can be pressed against the inner wall of the main section 30A1, and the connecting rod 30B can be firmly plugged into the expansion sleeve 30A without being easily loosened, thereby completing the firm assembly of the cross plate 10 and the side plate 20.

[0071] The present embodiment adopts a structure in which the cross plate 10 and the side plate 20 are assembled by a connecting component 30. The connecting component 30 can be completely hidden, and there are no exposed holes on the surface of the plate. The connecting component 30 has a simple structure, and the assembly of the cross plate 10 and the side plate 20 is convenient and quick, and can be completed without consuming a lot of manpower. During disassembly, it is only necessary to use a rubber hammer or other knocking tool to knock the side plate 20 in the opposite direction (that is, knock in the direction away from the cross plate 10) to complete the disassembly of the cross plate 10 and the side plate 20. The disassembly is also convenient and quick, and there is no damage to the plate.

[0072] Embodiment 2

[0073] Please refer to Figure 1-Figure 6 , Figure 7 , Figure 8 and Fig. 9 , Figure 7 yes Figure 4 A schematic diagram of a cross-sectional structure in which the expansion sleeve is embedded in the horizontal plate. Figure 8 yes Figure 5 A schematic diagram of a cross-sectional structure in which the middle connecting rod is inserted into the side plate. Fig. 9 yes Figure 5 Another cross-sectional structural schematic diagram of a cross-sectional structural schematic diagram in which the middle connecting rod is inserted into the side plate, a non-porous connecting structure 000 of a plate provided in this embodiment comprises a cross plate 10 and a side plate 20, the plane where the cross plate 10 is located is perpendicular to the plane where the side plate 20 is located; the side of the cross plate 10 facing the side plate 20 is the cross plate connecting side surface 10A, and the side of the side plate 20 facing the cross plate 10 is the side plate connecting surface 20A; the cross plate connecting side surface 10A is fixedly connected to the side plate connecting surface 20A through a plurality of connecting components 30; the connecting component 30 comprises an expansion sleeve 30A and a connecting rod 30B;

[0074] The cross plate connecting side surface 10A includes a plurality of cylindrical grooves 10AK, the expansion sleeve 30A is embedded in the cylindrical groove 10AK, the coarse thread 30B1 of the connecting rod 30B is screwed into the side plate connecting surface 20A through the locking groove 30B2K, and the structure of the connecting rod 30B except the coarse thread 30B1 is inserted into the expansion sleeve 30A.

[0075] The side plate connection surface 20A is provided with a plurality of positioning grooves 20AK, and the depth H1 of the positioning grooves 20AK is greater than or equal to the length H2 of the coarse thread 30B1.

[0076] This embodiment explains that before the cross plate 10 and the side plate 20 are assembled and fixed by the connecting component 30, a plurality of cylindrical grooves 10AK can be opened on the cross plate connecting side surface 10A of the cross plate 10, and a plurality of positioning grooves 20AK can be opened on the side plate connecting surface 20A of the side plate 20. The cylindrical grooves 10AK and the positioning grooves 20AK correspond to each other one by one, and the distance between two adjacent cylindrical grooves 10AK is equal to the distance between two adjacent positioning grooves 20AK. The cylindrical groove 10AK is used to embed the expansion sleeve 30A, and the positioning groove 20AK is used to screw into the coarse thread 30B1 part of the connecting rod 30B. The depth H1 of the positioning groove 20AK is greater than or equal to the length H2 of the coarse thread 30B1. Since the coarse thread 30B1 of the connecting rod 30B can be gradually screwed into the positioning groove 20AK by relying on the external force of rotation, it is ensured that before the connecting rod 30B is screwed in, the depth H1 of the positioning groove 20AK is greater than or less than the length H2 of the coarse thread 30B1. This can avoid the situation where the side plate 20 is pushed out and bulged after the coarse thread 30B1 of the connecting rod 30B is screwed into the positioning groove 20AK when the depth H1 of the positioning groove 20AK is less than the length H2 of the coarse thread 30B1. It can also ensure that the connecting rod 30B is completely tightened in the side plate 20, thereby improving the firmness of the connecting rod 30B and the side plate 20, reducing the difficulty of assembly, and improving the assembly efficiency of the plate.

[0077] Optionally, the locking groove 30B2K in this embodiment includes any one of a cross groove, a slotted groove, or a Pozidriv groove, and can be suitable for different types of screwdrivers and other tools.

[0078] Optionally, in this embodiment, along the extension direction of the length of the connecting rod 30B, the length H2 of the coarse thread 30B1 ranges from 6 to 8 mm. This embodiment explains that the length H2 range of the coarse thread 30B1, i.e., the length range of the portion of the connecting rod screwed into the side panel 20, needs to be ensured to be between 6 and 8 mm. The thickness of the side panel 20 commonly used in the general furniture assembly process is about 18 mm. If the connecting rod 30B is installed on the front and back surfaces of the side panel 20 at the same time, it is necessary to ensure that the two connecting rods 30B installed on the front and back surfaces of the side panel 20 cannot penetrate the side panel 20 and do not conflict. Therefore, the length H2 range of the coarse thread 30B1 needs to be set between 6 and 8 mm to ensure the plug-in stability of the side panel 20 and the connecting rod 30B.

[0079] Embodiment 3

[0080] Please refer to Figure 1-Figure 5 , Fig.10 , Fig.10 yes Figure 4Another three-dimensional structural schematic diagram of the expansion sleeve in the embodiment of the present invention is a non-porous connection structure of a plate 000, comprising a transverse plate 10 and a side plate 20, wherein the plane where the transverse plate 10 is located is perpendicular to the plane where the side plate 20 is located; the side of the transverse plate 10 facing the side plate 20 is the transverse plate connection side 10A, and the side of the side plate 20 facing the transverse plate 10 is the side plate connection surface 20A; the transverse plate connection side 10A is fixedly connected to the side plate connection surface 20A through a plurality of connection components 30; the connection component 30 comprises an expansion sleeve 30A and a connection rod 30B;

[0081] The expansion sleeve 30A is formed by bending a steel sheet.

[0082] The locking segment 30A2 of the expansion sleeve 30A includes a plurality of side walls 30A20, which surround the periphery of the expansion sleeve 30A and are arranged at intervals; the end of each side wall 30A20 away from the main segment 30A1 includes an outward-turned portion 30A201, and the outward-turned portion 30A201 is folded in the direction away from the cavity structure of the locking segment 30A2, and the outward-turned portion 30A201 forms an angle α with the side wall 30A20; wherein 90 degrees ≤ α ≤ 150 degrees.

[0083] One end of the main body section 30A1 of the expansion sleeve 30A away from the locking section 30A2 includes an opening 30A1K, and the opening 30A1K extends along the length direction of the expansion sleeve 30A.

[0084] This embodiment explains that the cross plate 10 and the side plate 20 are assembled and fixed by the connecting assembly 30, and the connecting assembly 30 includes an expansion sleeve 30A embedded in the cylindrical groove 10AK of the cross plate 10, and a connecting rod 30B partially embedded in the positioning groove 20AK of the side plate 20. The cross plate 10 and the side plate 20 are assembled and fixed by plugging the part of the connecting rod 30B other than the coarse thread 30B1 with the expansion sleeve 30A. The expansion sleeve 30A in the connecting assembly 30 can be formed in one piece by bending a steel sheet, which is conducive to improving the manufacturing efficiency of the expansion sleeve 30A. At the same time, the expansion sleeve 30A made of steel sheet can make the outer turn 30A201 of the side wall 30A20 away from the main body section 30A1 have greater elasticity and toughness. When the expansion sleeve 30A is embedded in the cylindrical groove 10AK of the cross plate 10, the outer turn 30A201 can facilitate the clamping section 30A2 of the expansion sleeve 30A to be hemispherically connected to the connecting rod 30B. The shaped end portion 30B2 is stretched open, which is conducive to firmly embedding the expansion sleeve 30A in the cylindrical groove 10AK of the cross plate 10; when the connecting rod 30B is inserted into the expansion sleeve 30A, the insertion section 30B31 of the connecting rod 30B can produce a good resistance with the inner wall of the main section 30A1, which is conducive to firmly inserting the part of the connecting rod 30B except the coarse thread 30B1 into the expansion sleeve 30A, thereby further improving the reliability of assembling the cross plate 10 and the side plate 20 through the connecting assembly 30.

[0085] like Figure 4 As shown, the clamping segment 30A2 of the expansion sleeve 30A of the present embodiment includes a plurality of side walls 30A20, and each side wall 30A20 includes an outward-turned portion 30A201 at one end away from the main segment 30A1, and the angle α formed by the outward-turned portion 30A201 and the side wall 30A20 is in the range of 90 degrees to 150 degrees, which can ensure that after the hemispherical end 30B2 of the connecting rod 30B extends out of the clamping segment 30A2, each side wall 30A20 continues to move in the direction of the cavity structure away from the clamping segment 30A2, so that the clamping segment 30A2 of the expansion sleeve 30A is conveniently stretched open by the hemispherical end 30B2 of the connecting rod 30B, so that the hemispherical end 30B2 of the connecting rod 30B can more easily pass through the narrow clamping segment 30A2 of the expansion sleeve 30A.

[0086] like Fig.10 As shown, the main section 30A1 of the expansion sleeve 30A of this embodiment includes an opening 30A1K at one end away from the locking section 30A2, and the opening 30A1K extends along the length direction of the expansion sleeve 30A. The opening 30A1K can be formed when the expansion sleeve 30A is bent from a steel sheet, so that after the connecting rod 30B is inserted into the expansion sleeve 30A, the main section 30A1 can be more easily expanded, and the plug-in section 30B31 at the end of the connecting rod 30B can finally abut against the inner wall of the main section 30A1, so as to prevent the connecting rod 30B from loosening from the expansion sleeve 30A due to the shaking of the plate, thereby improving the assembly stability of the transverse plate 10 and the side plate 20.

[0087] Embodiment 4

[0088] Please continue to refer to Figure 1-Figure 6 The present embodiment provides a non-porous connection structure 000 of a plate material, comprising a transverse plate 10 and a side plate 20, wherein the plane where the transverse plate 10 is located is perpendicular to the plane where the side plate 20 is located; the side of the transverse plate 10 facing the side plate 20 is a transverse plate connection side surface 10A, and the side of the side plate 20 facing the transverse plate 10 is a side plate connection surface 20A; the transverse plate connection side surface 10A is fixedly connected to the side plate connection surface 20A by a plurality of connection components 30; the connection component 30 comprises an expansion sleeve 30A and a connection rod 30B; Figure 3-Figure 5 As shown, the maximum outer diameter L4 of the tapered section 30B32 max The minimum outer diameter of the plug-in section 30B31 is larger than the minimum inner diameter of the card segment 30A2 . The minimum outer diameter of the plug-in section 30B31 is larger than the minimum inner diameter of the card segment 30A2 .

[0089] This embodiment explains that the tapered section 30B32 of the connecting rod 30B includes a maximum outer diameter L4 maxSince the outer diameter L4 of the tapered section 30B32 gradually increases along the direction of the coarse thread 30B1 pointing to the hemispherical end 30B2, the maximum outer diameter L4 of the tapered section 30B32 is max It can be understood as the outer diameter of the position closest to the hemispherical end 30B2, that is, the position where the conical section 30B32 is integrally connected with the hemispherical end 30B2.

[0090] The clamping segment 30A2 of the expansion sleeve 30A includes a minimum inner diameter L1 min Since the inner diameter L1 of the card segment 30A2 gradually decreases along the direction from the main body segment 30A1 to the card segment 30A2, the card segment 30A2 includes the minimum inner diameter L1 min It can be understood as the inner diameter farthest from the plug-in section 30B31, that is, the inner diameter of the bending position between the locking section 30A2 and the side wall 30A20.

[0091] The plug-in section 30B31 is in the shape of a circular frustum. As the coarse thread 30B1 points toward the hemispherical end 30B2, the outer diameter of the plug-in section 30B31 gradually decreases. The maximum outer diameter L3 of the plug-in section 30B31 is max It can be understood that the outer diameter of the plug-in section 30B31 at the position closest to the coarse thread 30B1, the minimum outer diameter L3 of the plug-in section 30B31 min It can be understood as the outer diameter of the plug-in section 30B31 at the position farthest from the coarse thread 30B1.

[0092] In this embodiment, the maximum outer diameter L4 of the tapered section 30B32 is set max The minimum inner diameter of the plug-in section 30A2 is larger than that of the plug-in section 30A2, so that the conical section 30B32 of the connecting rod 30B and the hemispherical end 30B2 of the connecting rod 30B can be stuck after extending from the plug-in section 30A2 and are not easy to retract, thereby ensuring that the connecting rod 30B and the expansion sleeve 30A are firmly connected in the cylindrical groove 10AK. min Larger than the minimum inner diameter L1 of the card segment 30A2 min, it can be ensured that after the conical section 30B32 of the connecting rod 30B and the hemispherical end 30B2 of the connecting rod 30B extend out of the clamping section 30A2, the plug-in section 30B31 of the connecting rod 30B will not continue to be pushed out to the outside of the clamping section 30A2, even if the force of hitting the side panel 20 is too large during assembly, the hemispherical end 30B2 of the connecting rod 30B can be prevented from causing additional damage to the cross panel 10. In addition, in this embodiment, the overall length of the connecting rod 30B excluding the coarse thread 30B1 and the overall length of the expansion sleeve 30A need to match each other, that is, the length of the connecting rod 30B excluding the coarse thread 30B1 cannot be too long or too short. If the overall length of the connecting rod 30B excluding the coarse thread 30B1 is too long, after the connecting rod 30B is inserted into the expansion sleeve 30A, a gap will be formed between the horizontal plate 10 and the side plate 20 connected thereto, affecting the overall stability and aesthetics. In addition, the length of the connecting rod 30B is not too long, which can also prevent the impact of the connecting rod 30B on the horizontal plate 10 caused by the excessive force of hitting the side plate 20. If the overall length of the connecting rod 30B excluding the coarse thread 30B1 is too short, the overall firmness of the connecting rod 30B inserted into the expansion sleeve 30A cannot be effectively guaranteed. Therefore, in this embodiment, the overall length of the connecting rod 30B excluding the coarse thread 30B1 and the overall length of the expansion sleeve 30A are matched with each other, which is conducive to ensuring the stability and aesthetics of the entire structure.

[0093] Embodiment 5

[0094] Please refer to Figure 1-Figure 6 and Figure 11-Figure 15 , Fig.11 This is a structural schematic diagram of a cabinet provided by an embodiment of the utility model. Fig.12 yes Fig.11 Exploded diagram of the split structure, Fig.13 yes Fig.12 Schematic diagram of the structure after the middle expansion sleeve is plugged into the horizontal plate, and the connecting rod is plugged into the side plate. Fig.14 yes Fig.12 Schematic diagram of the process of inserting the middle connecting rod into the expansion casing. Fig.15 yes Fig.12 The three-dimensional structural diagram of the cabinet after assembly is shown in the figure. The present embodiment discloses a cabinet 111, including a plurality of transverse panels 10 and a plurality of side panels 20. The transverse panels 10 and the side panels 20 are assembled and fixed by a connecting structure. The connecting structure adopts the non-porous connecting structure 000 of the above-mentioned plate.

[0095] like Fig.11As shown, a cabinet 111 illustrated in this embodiment can be configured to include three horizontal panels 10 and three side panels 20, wherein two of the three side panels 20 are respectively located on both sides of the cabinet 111, and another of the three side panels 20 can be used as the back panel of the cabinet 111, located at the back of the cabinet 111. Two of the three horizontal panels 10 are respectively located at the top and bottom of the cabinet 111, while another of the three horizontal panels 10 is located in the middle of the cabinet 111 and used as a partition. It can be understood that the number and position of the horizontal panels 10 and side panels 20 included in the cabinet 111 of this embodiment are only examples, and can be configured according to the actual design structure of the cabinet 111 during specific implementation, and this embodiment does not limit this.

[0096] In the cabinet 111 of this embodiment, the horizontal plate 10 and the side plate 20 are assembled and fixed using the non-porous connecting structure 000 of the plate in the above embodiment. Fig.13 As shown, a plurality of expansion sleeves 30A may be pre-buried in a plurality of cylindrical grooves 10AK of the transverse plate 10, and a plurality of coarse threaded joints 30B1 of the connecting rods 30B may be inserted into a plurality of positioning grooves 20AK of the side plate 20; and then Fig.14 As shown, use a rubber hammer or other tool to tap along the Fig.14 By knocking the side plate 20 in the direction of the arrow G in the figure, the hemispherical end 30B2 of the connecting rod 30B can pass through the narrow clamping section 30A2 of the expansion sleeve 30A, and the other parts of the connecting rod 30B except the coarse thread 30B1 are all extended into the expansion sleeve 30A, and finally the partial tapered section 30B32 of the limiting column 30B3 of the connecting rod 30B and the hemispherical end 30B2 of the connecting rod 30B extend out from the clamping section 30A2, and the outward-turned portion 30A201 of the end of the side wall 30A20 away from the main section 30A1 can facilitate the clamping section 30A2 of the expansion sleeve 30A to be stretched open by the hemispherical end 30B2 of the connecting rod 30B, so that the hemispherical end 30B2 of the connecting rod 30B can pass through the narrow clamping section 30A2 of the expansion sleeve 30A more easily. The positioning boss 30B311 at the end of the plug-in section 30B31 can be pressed against the inner wall 30A10 of the main section 30A1, and the connecting rod 30B can be firmly plugged into the expansion sleeve 30A without being easily loosened, thereby completing the firm assembly of the transverse plate 10 and the side plate 20, forming Fig.15 The structure of the cabinet 111 is shown.

[0097] The present embodiment adopts the cabinet body 000 structure assembled by the hole-free connection structure 000 of the plate material in the above-mentioned embodiment, so that there are no exposed holes on the surface of the cabinet body 111, and the assembly is convenient and quick, and can be completed without consuming a lot of manpower; and when disassembling, it is only necessary to use a rubber hammer or other knocking tools to knock the side panel 20 of the cabinet body 111 in the opposite direction (that is, knock in the direction away from the horizontal panel 10) to complete the disassembly of multiple horizontal panels 10 and side panels 20 of the cabinet body 111. The disassembly is also convenient and quick, and there is no damage to the plate material.

[0098] It can be understood that the cabinet 111 provided in this embodiment has the beneficial effects of the non-porous connection structure 000 of the board material provided in the above-mentioned embodiments. For details, please refer to the specific description of the non-porous connection structure 000 of the board material in the above-mentioned embodiments, and this embodiment will not be repeated here.

[0099] It can be seen from the above embodiments that the non-porous connection structure of the plate and the cabinet provided by the utility model achieve at least the following beneficial effects:

[0100] The non-hole connection structure of the plate provided by the utility model can achieve the effect of non-hole connection and fixing of the horizontal plate and the side plate through multiple connection components. When assembling the horizontal plate and the side plate, a screwdriver or other tool is used to apply force to the locking groove of the hemispherical end of the connecting rod to assist in screwing the coarse thread of the connecting rod into the positioning groove reserved on the side plate connection surface of the side plate, so that the connecting rod and the positioning groove correspond to each other one by one. At the same time, the expansion sleeves are respectively embedded in the cylindrical grooves of the horizontal plate, and finally the side plate with the connecting rod and the horizontal plate with the expansion sleeve are brought close, the connecting rod is aligned with the expansion sleeve, and the side plate is knocked with a rubber hammer or other knocking tool, so that the hemispherical end of the connecting rod can pass through the narrow embedding section of the expansion sleeve, and the other parts of the connecting rod except the coarse thread are all extended into the expansion sleeve. Finally, part of the conical section and the hemispherical end of the connecting rod extend from the embedding section, and the outward-turned part of the side wall away from the end of the main section can facilitate the embedding section of the expansion sleeve to be stretched open by the hemispherical end of the connecting rod, so that the hemispherical end of the connecting rod can more easily pass through the narrow embedding section of the expansion sleeve. The frustum-shaped plug-in section design can make the connecting rod easier to insert. The maximum outer diameter of the plug-in section is equal to the inner diameter of the main section of the expansion sleeve, so that after the connecting rod is plugged into the expansion sleeve, the maximum outer diameter position of the plug-in section can abut against the inner wall of the main section of the expansion sleeve, ensuring the firmness and reliability of the connecting rod after being plugged into the expansion sleeve. The positioning boss at the end of the plug-in section can also be against the inner wall of the main section, and the connecting rod can be firmly plugged into the expansion sleeve without being easily loosened, thereby completing the firm assembly of the horizontal plate and the side plate. The utility model adopts a structure of a horizontal plate and a side plate assembled by a connecting assembly, and the connecting assembly can be completely hidden, without any exposed holes on the surface of the plate, and the connecting assembly has a simple structure, and the assembly of the horizontal plate and the side plate is convenient and quick, and can be completed without consuming a lot of manpower; and when disassembling, only a rubber hammer or other knocking tool is needed to knock the side plate in the opposite direction to complete the disassembly of the horizontal plate and the side plate, and the disassembly is also convenient and quick, and there is no damage to the plate.

[0101] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A non-porous connection structure of a plate, characterized in that: It comprises a horizontal plate and a side plate, wherein the plane where the horizontal plate is located is perpendicular to the plane where the side plate is located; the side of the horizontal plate facing the side plate is a horizontal plate connecting side surface, and the side of the side plate facing the horizontal plate is a side plate connecting surface; the horizontal plate connecting side surface is fixedly connected to the side plate connecting surface through a plurality of connecting components; The connecting assembly comprises an expansion casing and a connecting rod; A plurality of grooves are formed on the periphery of the expansion sleeve, the grooves are arranged around the expansion sleeve, the plurality of grooves are arranged in sequence along the length extension direction of the expansion sleeve, and the depth of the grooves is less than the thickness of the expansion sleeve; Along the length extension direction of the expansion sleeve, the expansion sleeve includes an integrally formed main section and a clamping section, the main section is a hollow cylindrical cavity structure, and the clamping section is a hollow conical cavity structure; along the direction from the main section to the clamping section, the inner diameter of the clamping section gradually decreases; The clamping segment includes a plurality of side walls, which surround the periphery of the expansion sleeve and are arranged at intervals; one end of each side wall away from the main segment includes an outward-turned portion, and the outward-turned portion is folded in a direction away from the cavity structure of the clamping segment; One end of the connecting rod includes a coarse thread, and the other end of the connecting rod includes a hemispherical end portion, and the hemispherical end portion is provided with a locking groove; A limiting column is included between the coarse thread and the hemispherical end of the connecting rod, and points in the direction of the coarse thread to the hemispherical end. The limiting column includes an inserting section close to the coarse thread, a tapered section close to the hemispherical end, and a connecting section between the inserting section and the tapered section. The inserting section, the connecting section and the tapered section are integrally formed. The connecting section is cylindrical, and the plug-in section is a circular frustum. Along the direction from the coarse thread to the hemispherical end, the outer diameter of the plug-in section gradually decreases, the minimum outer diameter of the plug-in section is greater than the outer diameter of the connecting section, and the maximum outer diameter of the plug-in section is equal to the inner diameter of the main section; along the direction from the coarse thread to the hemispherical end, the outer diameter of the tapered section gradually increases; A positioning boss is arranged on one side of the plug-in section close to the coarse thread, and the positioning boss is arranged around the periphery of the plug-in section.

2. The non-porous connection structure of the plate material according to claim 1, characterized in that: The side surface of the cross plate connection includes a plurality of cylindrical grooves, the expansion sleeve is embedded in the cylindrical grooves, the coarse thread of the connecting rod is screwed into the side plate connection surface through the locking groove, and the structure of the connecting rod other than the coarse thread is inserted into the expansion sleeve.

3. The non-porous connection structure of the plate material according to claim 1, characterized in that: The side plate connection surface is provided with a plurality of positioning grooves, and the depth of the positioning grooves is greater than or equal to the length of the coarse thread.

4. The non-porous connection structure of the plate material according to claim 1, characterized in that: The maximum outer diameter of the tapered section is greater than the minimum inner diameter of the card segment, and the minimum outer diameter of the plug-in section is greater than the minimum inner diameter of the card segment.

5. The non-porous connection structure of the plate material according to claim 1, characterized in that: The expansion sleeve is formed by bending a steel sheet.

6. The non-porous connection structure of the plate material according to claim 1, characterized in that: The outward-turned portion and the side wall form an angle α, wherein 90 degrees ≤ α ≤ 150 degrees.

7. The non-porous connection structure of the plate material according to claim 1, characterized in that: The locking groove includes any one of a cross groove, a straight groove, or a Pozidriv groove.

8. The non-porous connection structure of the plate material according to claim 1, characterized in that: Along the extending direction of the connecting rod, the length of the coarse thread ranges from 6 to 8 mm.

9. The non-porous connection structure of the plate material according to claim 1, characterized in that: One end of the main body section away from the clamping section comprises an opening, and the opening extends along the length direction of the expansion sleeve.

10. A cabinet, characterized in that: It comprises a plurality of transverse plates and a plurality of side plates, wherein the transverse plates and the side plates are assembled and fixed by a connecting structure, and the connecting structure adopts the non-porous connecting structure of the plate material according to any one of claims 1 to 9.

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