Storage cabinet connection structure and storage cabinet

Abstract

To provide a connection structure for a storage cabinet and a storage cabinet which do not require the use of fasteners such as screws, effectively improves assembly efficiency, and improves the applicability of guide rails. [Solution] The connecting structure includes a first upright pillar 1, a second upright pillar 2, and at least one guide rail, each guide rail including a guide portion 31, a first connecting portion 32, a second connecting portion 33, and a third connecting portion 34, the first connecting portion and the second connecting portion being respectively provided at opposite ends of the guide portion, the second connecting portion being detachably connected to the guide portion, the third connecting portion being provided at an end of the guide portion closer to the first connecting portion, and the first connecting portion and the third connecting portion being perpendicular to each other, the first upright pillar having at least one first connecting groove 10 and the second upright pillar having at least one second connecting groove 20, each first connecting portion being engaged with the first connecting groove and each second connecting portion being engaged with the second connecting groove.

Description

[Technical Field]

[0001] The present invention relates to the technical field of storage cabinets, and more particularly to a connection structure for storage cabinets and storage cabinets. [Background technology]

[0002] Storage cabinets are becoming increasingly popular in homes and even in some commercial establishments. In conventional storage cabinets, the posts are usually connected using fasteners such as screws, which requires a large number of screws to be fastened during assembly, resulting in a long assembly time and a complicated assembly method, making the installation and use of the storage cabinet inconvenient. To solve this problem, drawer connection structures that do not use screw connections have appeared on the market. However, these connection structures are fixed in structure and cannot be used for left- or right-handed applications, resulting in increased production costs. Summary of the Invention [Problem to be solved by the invention]

[0003] In response to the deficiencies of the prior art, a storage cabinet connection structure and a storage cabinet are provided. [Means for solving the problem]

[0004] To achieve the above object, the present invention provides a connection structure for a storage cabinet, comprising a first upright pillar, a second upright pillar, and at least one guide rail, each guide rail comprising a guide portion, a first connecting portion, a second connecting portion, and a third connecting portion, the first connecting portion and the second connecting portion being respectively provided at opposite ends of the guide portion, the second connecting portion being detachably connected to the guide portion, the third connecting portion being provided at an end of the guide portion closer to the first connecting portion, the first connecting portion and the third connecting portion being perpendicular to each other, the first upright pillar having at least one first connecting groove and the second upright pillar having at least one second connecting groove, each first connecting portion being engaged with the first connecting groove and each second connecting portion being engaged with the second connecting groove.

[0005] According to one embodiment of the present invention, a connecting slot is formed in the second connecting part, and the end of the guide part remote from the first connecting part is inserted into the connecting slot.

[0006] According to one embodiment of the present invention, the second connecting part includes a receiving piece, a guide piece, a limiting block piece, and a connecting member, the receiving piece, the guide piece, and the limiting block piece are vertically connected to each other, the limiting block piece is located at one end of the receiving piece and the guide piece, the connecting member is provided on the outside of the guide piece, and the connecting slot is opened at the end of the receiving piece and the guide piece away from the limiting block piece.

[0007] The present invention further provides a storage cabinet, comprising: two sets of storage cabinet connecting structures, a bottom frame, a top frame, and at least eight sets of fastening structures, the connecting structures of the two sets of storage cabinets being arranged directly opposite and parallel to each other, and in the connecting structures of the two sets of storage cabinets, at least one guide rail provided on the connecting structure of each set of storage cabinets is at the same height as at least one guide rail provided on the connecting structure of the other set of storage cabinets, each fastening structure comprising a fastening sleeve and a fastening assembly, a fastening sleeve being provided at each of the four corners of the bottom frame and the top frame, and two fastening assemblies being provided vertically spaced apart on each of the first upright pillars and each of the second upright pillars, each fastening sleeve being fitted onto the outside of the fastening assembly, and the fastening sleeve being fastened to the fastening assembly.

[0008] According to one embodiment of the present invention, the storage unit further includes at least one first partition post, at least one second partition post, and at least two guide rails, wherein the first partition post is movably connected between the top frame and the bottom frame and is located between the two first upright posts, with at least one first connecting groove on each opposite side of the first partition post; the second partition post is movably connected between the bottom frame and the top frame and is located between the two second upright posts, with at least one second connecting groove on each opposite side of the second partition post; and at least one guide rail is provided on each opposite side of each of the first and second partition posts, with the first connecting portion of each guide rail engaged in the first connecting groove and the second connecting portion of the guide rail engaged in the second connecting groove located at the same height.

[0009] According to one embodiment of the present invention, the first partition pillar includes a first pillar body and an elastic connecting member, and at least one first connecting groove is formed on each of the opposite sides of the first pillar body. The elastic connecting member is connected to one end of the first pillar body, and a fastening hole is formed in the top frame, one end of the elastic connecting member is disposed in the fastening hole, and the other end of the first pillar abuts against the bottom frame.

[0010] According to one embodiment of the present invention, the elastic connecting member includes a base, a spring, and a movable connecting member, a movable groove formed in the base, a first limiting protrusion at the bottom of the movable groove, one end of the spring fitted onto the outside of the first limiting protrusion and abutting against the bottom of the movable groove, the movable connecting member is movably mounted in the movable groove, the other end of the spring abuts against the bottom of the movable connecting member, a locking protrusion formed on the top of the movable connecting member and disposed within the locking hole.

[0011] According to one embodiment of the present invention, the first partition pillar further includes a contact limiting member, which includes a locking seat and a second limiting protrusion, the locking seat is connected to the end of the first pillar body far from the elastic connecting member, the second limiting protrusion is protruding from one side of the locking seat, a limiting hole is opened in the bottom frame, and the second limiting protrusion is movably connected to the limiting hole.

[0012] According to one embodiment of the present invention, the fastening assembly includes a first fastening piece and a second fastening piece, the first fastening piece including a first surrounding wall and a first fastening member, the first fastening member protruding from the inside of the first surrounding wall, the second fastening piece including a second surrounding wall and a second fastening member, the second fastening member protruding from the inside of the second surrounding wall, the first surrounding wall and the second surrounding wall engaged with each other, the first upright pillar and the second upright pillar respectively having fixing holes, the first fastening member and the second fastening member respectively passing through the fixing holes.

[0013] According to one embodiment of the present invention, the fastening assembly has a first end and a second end, and the outer diameter of the fastening assembly gradually increases in a direction from the first end to the second end; the fastening sleeve has a third end and a fourth end, and the inner diameter of the fastening sleeve gradually increases in a direction from the third end to the fourth end; the minimum inner diameter of the fastening sleeve is equal to or less than the minimum inner diameter of the fastening assembly; and the maximum inner diameter of the fastening sleeve is equal to or less than the maximum outer diameter of the fastening assembly. [Effects of the Invention]

[0014] The beneficial effects of the present invention are as follows: The engagement of the first connecting portion with the first connecting groove and the second connecting portion with the second connecting groove eliminates the need for fasteners such as screws to connect the guide rail to the first and second upright posts, effectively simplifying the assembly method and improving assembly efficiency. The third connecting portion is located at the end of the guide part close to the first connecting portion, and the first and third connecting portions are perpendicular to each other. The guide part is detachably connected to the second connecting portion. Therefore, the first or third connecting portion can be selected to connect to the first connecting groove of the first upright post depending on the assembly direction of the guide rail. This allows the guide part to be connected to either the left or right side of the first upright post, improving the applicability of the guide rail. [Brief explanation of the drawings]

[0015] The drawings described herein are used to further understand the present application and constitute a part of the present application. The exemplary embodiments and the description thereof are for the purpose of interpreting the present application and are not intended to unduly limit the present application. [Figure 1] 1 is a schematic diagram of a connection structure of a storage cabinet in a first embodiment. [Figure 2] 1 is an exploded view of a connection structure for a storage cabinet according to a first embodiment. [Figure 3] 4 is a schematic diagram of a second connection portion in the first embodiment. FIG. [Figure 4] FIG. 10 is a schematic view of a storage cabinet according to a second embodiment. [Figure 5] FIG. 10 is a schematic view of a frame of a storage cabinet in a second embodiment. [Figure 6] FIG. 10 is a cross-sectional view showing an engaging assembly in a second embodiment. [Figure 7] FIG. 10 is an exploded view showing the fastening assembly in the second embodiment. [Figure 8] FIG. 10 is a schematic diagram of a first partition pillar in Example 2. [Figure 9] FIG. 10 is a schematic diagram of the top frame in Example 2. [Figure 10] FIG. 10 is a cross-sectional view of an elastic connecting member according to a second embodiment. [Figure 11] FIG. 10 is a schematic view of a contact limiting member in the second embodiment. [Figure 12] FIG. 10 is a schematic diagram of a bottom frame in Example 2. [Figure 13] FIG. 10 is a perspective view showing a second partition pillar in the second embodiment. [Figure 14] FIG. 10 is an exploded view of the third partition pillar in the second embodiment. [Figure 15] FIG. 10 is an exploded view of the fourth partition pillar in the second embodiment. [Figure 16] FIG. 10 is a schematic view showing a top plate assembly in Example 2. DETAILED DESCRIPTION OF THE INVENTION

[0016] In the following, several embodiments of the present invention will be disclosed with reference to the drawings. For clarity, numerous specific details will be set forth in the following description. However, it should be understood that these specific details are not limiting of the present invention. That is, in some embodiments of the present invention, these specific details are not necessarily required. Also, in order to simplify the drawings, well-known conventional structures and assemblies are shown in simplified schematic diagrams in the drawings.

[0017] Furthermore, the terms "first," "second," etc., used in the present invention are for illustrative purposes only and do not refer to a specific order or sequence, nor do they limit the present invention. They are used to distinguish between assemblies or operations described with the same technical terms, and should not be understood as indicating or suggesting the relative importance or the number of technical features described. Accordingly, features defined as "first" or "second" may explicitly or implicitly include at least one of the features. Furthermore, the technical solutions in each embodiment may be combined with each other, provided that such combinations are feasible by a person skilled in the art. If a combination of technical solutions is mutually inconsistent or impossible to achieve, such a combination of technical solutions should be deemed not to exist and not to fall within the scope of protection of the claims.

[0018] Example 1 As shown in FIGS. 1 to 3, FIG. 1 is a schematic diagram of a connection structure for a storage cabinet, FIG. 2 is an exploded view of the connection structure for a storage cabinet, and FIG. 3 is a schematic diagram of a second connection portion. This embodiment provides a connection structure for a storage cabinet including a first upright column 1, a second upright column 2, and at least one guide rail 3. The at least one guide rail 3 is connected between the first upright column 1 and the second upright column 2. Specifically, each guide rail 3 includes a guide portion 31, a first connection portion 32, a second connection portion 33, and a third connection portion 34. The first connection portion 32 and the second connection portion 33 are respectively provided on opposite sides of the guide portion 31, and the second connection portion 33 is detachably connected to the guide portion 31. The third connection portion 34 is provided at an end of the guide portion 31 close to the first connection portion 32, and the first connection portion 32 and the third connection portion 34 are perpendicular to each other. In this embodiment, the first connection portion 32 and the third connection portion 34 have the same shape. During actual use, the first connecting portion 32 or the third connecting portion 34 to be connected to the first connecting groove 10 of the first upright 1 can be selected depending on the assembly direction of the guide rail 3, allowing the guide portion 31 to be connected to the left or right side of the first upright 1, improving the applicability of the guide rail 3. At least one first connecting groove 10 is formed in the first upright 1, and at least one second connecting groove 20 is formed in the second upright 2. During connection, each first connecting portion 32 is engaged in the first connecting groove 10, and each second connecting portion 33 is engaged in the second connecting groove 20, thereby realizing the connection between the guide rail 3 and the first upright 1 and second upright 2. In this way, the engagement and fitting between the first connecting portion 32 and the first connecting groove 10, and the engagement and fitting between the second connecting portion 33 and the second connecting groove 20, eliminates the need to use fasteners such as screws to connect the guide rail 3 to the first upright 1 and the second upright 2, effectively simplifying the assembly method and improving assembly efficiency.

[0019] Furthermore, a connection slot 330 is formed in the second connecting portion 33, and the shape of the connection slot 330 matches the shape of the guide portion 31. During connection, an end of the guide portion 31 remote from the first connecting portion 32 is inserted into the connection slot 330, and the guide portion 31 is detachably connected to the second connecting portion 33. In this example, the guide portion 31 includes a first guide member 311 and a second guide member 312 arranged in an "L" shape. The first connecting portion 32 is provided at one end of the second guide member 312 and is parallel to the second guide member 312. The second connecting portion 33 is provided at the other end of the first guide member 311 and the second guide member 312. The second connecting portion 33 is formed in the connection slot 330, and the connection slot 330 is provided at an end of the second connecting portion 33 close to the guide portion 31, and the shape of the connection slot 330 is correspondingly set to an "L" shape. When connecting, the ends of the first guide member 311 and the second guide member 312 remote from the first connecting portion 32 are all inserted into the connecting slots 330 .

[0020] The second connecting portion 33 includes a receiving piece 331, a guide piece 332, a limiting block piece 333, and a connecting member 334. The receiving piece 331, the guide piece 332, and the limiting block piece 333 are arranged perpendicular to each other, and the limiting block piece 333 is located at one end of the guide piece 332 and the receiving piece 331. A connecting slot 330 is opened at the end of the receiving piece 331 and the guide piece 332 remote from the limiting block piece 333. The connecting member 334 is located outside the guide piece 332. During connection, the end of the guide portion 31 remote from the first connecting portion 32 is inserted into the connecting slot 330, the limiting block piece 333 is blocked at the end of the guide portion 31 remote from the first connecting portion 32, and the connecting member 334 is engaged in the second connecting groove 20. The second connection portion 33 is divided into a left-facing second connection portion 33 and a right-facing second connection portion 33 depending on the connection direction, and the left-facing second connection portion 33 and the right-facing second connection portion 33 are arranged in a mirror image relationship.

[0021] Example 2 As shown in Figures 4 and 5, Figure 4 is a schematic diagram of a storage cabinet, and Figure 5 is a schematic diagram of the frame of the storage cabinet. This embodiment provides a storage cabinet including two sets of storage cabinet connection structures, further including a bottom frame 4, a top frame 5, and at least eight fastening structures 6. The two sets of storage cabinet connection structures are arranged directly opposite each other and parallel to each other, and in the two sets of storage cabinet connection structures, at least one guide rail 3 in each set of storage cabinet connection structures is equal in height to at least one guide rail 3 in the connection structure of the other storage cabinet. Two first uprights 1 and two second uprights 2 are connected to the top frame 5 and bottom frame 4 respectively via eight sets of fastening structures 6. Specifically, each set of fastening structures 6 includes a fastening sleeve 61 and a fastening assembly 62. One fastening sleeve 61 is provided at each of the four corners of the bottom frame 4 and the top frame 5, and two fastening assemblies 62 are provided vertically spaced apart on each of the first uprights 1 and the second uprights 2. Each fastening assembly 62 corresponds to a fastening sleeve 61, and when connected, each fastening sleeve 61 is fitted onto the outside of the fastening assembly 62, and the fastening sleeve 61 is engaged with the fastening assembly 62. In this way, by fitting the fastening assembly 62 into the fastening sleeve 61, the bottom frame 4 and the top frame 5 are connected to the first upright 1 and the second upright 2, respectively. In this example, the bottom frame 4 and the fastening sleeves 61 provided at its four corners are formed integrally, and the top frame 5 and the fastening sleeves 61 provided at its four corners are formed integrally.

[0022] The storage cabinet in this example further includes at least one drawer 7, and in the connecting structure of the two sets of storage cabinets, the drawer 7 is provided on the guide rails 3 at the same height. In practical applications, the drawer 7 can be replaced with a structure for holding items, such as a mesh frame or a support plate, which will not be described again here.

[0023] As shown in FIGS. 6 and 7 , FIG. 6 is a cross-sectional view illustrating the fastening assembly, and FIG. 7 is an exploded view illustrating the fastening assembly. The fastening assembly 62 has a first end 623 and a second end 624, and the outer diameter of the fastening assembly 62 gradually increases in the direction from the first end 623 to the second end 624. The fastening sleeve 61 has a third end 611 and a fourth end 612, and the inner diameter of the fastening sleeve 61 gradually increases in the direction from the third end 611 to the fourth end 612. The minimum inner diameter of the fastening sleeve 61 is equal to or less than the minimum outer diameter of the fastening assembly 62, and the maximum inner diameter of the fastening sleeve 61 is equal to or less than the maximum outer diameter of the fastening assembly 62. In this example, the minimum inner diameter of the fastening sleeve 61 is equal to the minimum outer diameter of the fastening assembly 62, and the maximum inner diameter of the fastening sleeve 61 is equal to the maximum outer diameter of the fastening assembly 62. When the fastening sleeve 61 is connected to the fastening assembly 62, the fourth end 612 of the fastening sleeve 61 is fitted onto the outside of the fastening assembly 62 in a direction from the first end 623 to the second end 624 of the fastening assembly 62, and the inner wall of the fastening sleeve 61 is in close contact with the outer wall of the fastening assembly 62.

[0024] The fastening assembly 62 includes a first fastening piece 621 and a second fastening piece 622. The first fastening piece 621 includes a first surrounding wall 6211 and a first fastening member 6212, which protrudes from the inside of the first surrounding wall 6211. The second fastening piece 622 includes a second surrounding wall 6221 and a second fastening member 6222, which protrudes from the inside of the second surrounding wall 6221. Fixing holes 100 are formed in the first upright post 1 and the second upright post 2, respectively. During connection, the first surrounding wall 6211 and the second surrounding wall 6221 are engaged with each other, and the first fastening member 6212 and the second fastening member 6222 are engaged in the fixing holes 100, thereby realizing connection between the fastening assembly 62 and the first upright post 1 or the second upright post 2.

[0025] Referring again to FIG. 5 , the storage cabinet further includes at least one first partition post 8, at least one second partition post 9, and at least two guide rails 3. The first partition post 8 is movably connected between the bottom frame 4 and the top frame 5, and is located between two first upright posts 1, with at least one first connecting groove 10 provided on each opposite side of the first partition post 8. The second partition post 9 is movably connected between the bottom frame 4 and the top frame 5, and is located between two second upright posts 2, with at least one second connecting groove 20 provided on each opposite side of the second partition post 9. The first partition post 8 and the second partition post 9 are parallel to each other, and at least one guide rail 3 is connected to each opposite side of the second partition post 9 corresponding to each first partition post 8. The first connection portion 32 of the guide rail 3 engages with the first connection groove 10 of the first partition pillar 8, and the second connection portion 33 engages with the second connection groove 20 provided at the same height on the second partition pillar 9.

[0026] The first partition pillar 8 and the second partition pillar 9 are arranged parallel to each other between the first upright pillar 1 and the second upright pillar 2, and are used to increase the number of drawers 7 of the storage cabinet in the horizontal direction. A guide rail 3 is connected between the first partition pillar 8 and the second partition pillar 9, and the guide rail 3 between the first partition pillar 8 and the second partition pillar 9 corresponds to the guide rails 3 arranged on the first upright pillar 1 and the second upright pillar 2, thereby increasing the positions for adding connecting drawers 7 of the storage cabinet in the horizontal direction. A plurality of first connecting grooves 10 are arranged vertically at intervals on the first partition pillar 8, and a plurality of second connecting grooves 20 are arranged vertically at intervals on the second partition pillar 9, and a guide rail 3 for increasing the number of drawers 7 of the storage cabinet in the vertical direction is connected between each of the first connecting grooves 10 and the second connecting grooves 20.

[0027] The number of first partition columns 8 and second partition columns 9 can be set according to the number of drawers 7, and the number of first partition columns 8 and second partition columns 9 is the same. For each additional pair of first partition columns 8 and second partition columns 9, the number of horizontal connecting drawers 7 of the storage cabinet increases by one. For each additional number of first connecting grooves 10 of the first partition column 8 and second connecting grooves 20 of the second partition column 9, the number of vertical connecting drawers 7 of the storage cabinet increases by one.

[0028] Referring again to Figures 4 and 5, the storage cabinet in this example is provided with a total of two sets of storage cabinet connecting structures, one first partition post 8, one second partition post 9, six guide rails 3, eight fastening structures 6, and six drawers 7. Each set of storage cabinet connecting structures includes a first upright post 1, a second upright post 2, and four guide rails 3. Four first connecting grooves 10 are vertically spaced apart on one side of the first upright post 1, and four second connecting grooves 20 are vertically spaced apart on one side of the second upright post 2. The four guide rails 3 are spaced apart between the first upright post 1 and the second upright post 2 along the length of the first upright post 1 and the second upright post 2. Each guide rail 3 includes a guide portion 31, a first connecting portion 32, and a second connecting portion 33, with the first connecting portion 32 and the second connecting portion 33 respectively provided at both ends of the guide portion 31. During connection, the first connection portion 32 engages in the first connection groove 10, and the second connection portion 33 engages in the second connection groove 20. One fastening sleeve 61 is provided at each of the four corners of the top plate 1101 and the bottom plate, and two fastening assemblies 62 are provided on each of the first uprights 1 and second uprights 2. The two first uprights 1 and two second uprights 2 are connected between the top frame 5 and the bottom frame 4 via a connecting structure, and the two first uprights 1 and two second uprights 2 are provided at each of the four corners of the top frame 5 and the bottom frame 4. The two first uprights 1 are spaced apart along the long sides of the top frame 5 and the bottom frame 4, and the first uprights 1 and second uprights 2 are spaced apart along the short sides of the top frame 5 and the bottom frame 4. The guide rails 3 of the connecting structures of the two storage cabinets are arranged opposite each other.

[0029] The first partition pillar 8 and the second partition pillar 9 are connected between the top frame 5 and the bottom frame 4, with the first partition pillar 8 located between the two first upright pillars 1 and the second partition pillar 9 located between the two second upright pillars 2. Three first connecting grooves 10 are provided at intervals along the length on opposite sides of the first partition pillar 8. Three second connecting grooves 20 are provided at intervals along the length on opposite sides of the second partition pillar 9. A guide rail 3 is connected between the first partition pillar 8 and the second partition pillar 9 on the same side and at the same height. The guide rail 3 on one side of the first partition pillar 8 and the second partition pillar 9 is provided opposite the guide rail 3 between the first upright pillar 1 and the second upright pillar 2 on one side, and the guide rail 3 on the other side of the first partition pillar 8 and the second partition pillar 9 is provided opposite the guide rail 3 between the first upright pillar 1 and the second upright pillar 2 on the other side. A drawer 7 is slidably connected between the two guide rails 3 that are provided opposite each other and at the same height.

[0030] As shown in Figures 8 and 9, Figure 8 is a schematic diagram of a first partition post, and Figure 9 is a schematic diagram of a top frame. The first partition post 8 further includes a first pillar body 81 and an elastic connecting member 82. The elastic connecting member 82 is engaged with one end of the first pillar body 81, and a fastening hole 50 is formed in the bottom of the top frame 5, with one end of the elastic connecting member 82 elastically expanding and contracting within the fastening hole 50. The other end of the body is connected to the bottom frame 4. At least one first connecting groove 10 is formed on each of the opposing sides of the first pillar body 81.

[0031] As shown in FIG. 10, FIG. 10 is a cross-sectional view of the elastic connecting member. Furthermore, the elastic connecting member 82 includes a base 821, a spring 822, and a movable connecting member 823. A movable groove 8210 is formed in the base 821, and a first limiting protrusion 824 is provided at the bottom of the movable groove 8210. One end of the spring 822 is fitted outside the first limiting protrusion 824 to prevent the spring 822 from moving, and the spring 822 abuts against the bottom of the movable groove 8210. The movable connecting member 823 is movably disposed in the movable groove 8210, and the other end of the spring 822 abuts against the bottom of the movable connecting member 823. A locking protrusion 825 is formed at the top of the movable connecting member 823, and the locking protrusion 825 is provided in the locking hole 50. In actual use, the first pillars 81 can be replaced with different lengths to suit drawers 7 of different heights or different numbers of drawers 7 according to usage needs.

[0032] When in use, the end of the pillar body away from the elastic connecting member 82 is abutted against the bottom frame 4, then the movable connecting member 823 is pressed to compress the spring and move the movable connecting member 823 relative to the movable groove 8210, and then the engagement protrusion 825 of the movable connecting member 823 is matched with the engagement hole 50 of the top frame 5, the movable connecting member 823 is released, and the spring 822 returns by elastic force, the spring 822 drives the movable connecting member 823 to return, and the engagement protrusion 825 is extended into the engagement hole 50, thereby completing the connection between the first partition pillar 8 and the bottom frame 4 and top frame 5.

[0033] In this example, a pressing portion 826 is protruded from one side of the movable connecting member 823 to easily press the movable connecting member 823. A sliding groove 8211 is formed on one side of the base 821, and the sliding groove 8211 communicates with the movable groove 8210. The pressing portion 826 is movably provided within the sliding groove 8211. During use, a force is applied to the pressing portion 826, causing the pressing portion 826 to move downward along the sliding groove 8211, causing the movable connecting member 823 to compress the spring 822, and causing the first limiting protrusion 824 to move downward. When the force on the pressing portion 826 is released, the spring 822 returns by its elastic force, driving the movable connecting member 823 to return upward, and the pressing portion 826 returns upward along the sliding groove 8211.

[0034] As shown in Figures 11 and 12, Figure 11 is a schematic diagram of the contact limiting member, and Figure 12 is a schematic diagram of the bottom frame. To ensure a stable connection between the first partition post 8 and the bottom frame 4, the first partition post 8 further includes a contact limiting member 83. The contact limiting member 83 includes a locking seat 831 and a second limiting protrusion 832. The locking seat 831 is connected to the end of the first pillar 81 remote from the elastic connecting member 82, and the second limiting protrusion 832 protrudes from the side of the locking seat 831 opposite the first pillar 81. A corresponding limiting hole 40 is drilled in the bottom frame 4. When the contact limiting member 83 is connected to the pillar, the locking seat 831 engages with the end of the first partition post 8 remote from the elastic connecting member 82. When the first partition post 8 is connected to the bottom frame 4, the second limiting protrusion 832 is inserted into the limiting hole 40, and the side of the engagement seat 831 on which the second limiting protrusion 832 is provided abuts against the bottom frame 4. By providing an abutment limiting member 83 at the end of the pillar body that is connected to the bottom frame 4, the abutment limiting member 83 fits into the limiting hole 40 of the bottom frame 4 during connection, preventing the first partition post 8 from moving relative to the bottom frame 4 and improving the stability of the connection between the first partition post 8 and the bottom frame 4.

[0035] Preferably, the contact limiting member 83 further includes a contact piece 833, which is connected to the side of the engagement seat 831 where the second limiting protrusion 832 is provided, and the contact piece 833 and the second limiting protrusion 832 are oriented parallel to each other. When the first partition post 8 is connected to the bottom frame 4, the second limiting protrusion 832 is inserted into the limiting hole 40 of the bottom frame 4, and the contact piece 833 contacts the side edge of the bottom frame 4, thereby preventing the contact limiting member 83 from moving relative to the bottom frame 4.

[0036] As shown in Figure 13, Figure 13 is a perspective view showing the second partition column. The second partition column 9 includes a second column body 91 and two sets of fastening structures 6, and at least one second connecting groove 20 is provided on each of the opposing sides of the second column body 91. Both ends of the second column body 91 are connected to the top frame 5 and the bottom frame 4, respectively, via the two sets of fastening structures 6. That is, the connection method between the second partition column 9 and the top frame 5 and the bottom frame 4 is the same as the connection method between the first upright column 1 and the second upright column 2 and both the top frame 5 and the bottom frame 4, respectively, and will not be described again here.

[0037] In another embodiment, an elastic connecting member 82 is provided at one end of the second pillar 91, and an abutment limiting member 83 is provided at the other end, so that the connection method between the second partition pillar 9 and the top frame 5 and bottom frame 4 is the same as the connection method between the first partition pillar 8 and the top frame 5 and bottom frame 4, respectively.

[0038] 4 and 5, the storage cabinet in this example further includes two third partition columns 12, two fourth partition columns 13, and a top panel assembly 11. The tops of the two first upright columns 1 and the two second upright columns 2 penetrate the top frame 5, the top panel assembly 11 is located on top of the two first upright columns 1 and the two second upright columns 2, and each of the four corners of the top panel assembly 11 is engaged with the two first upright columns 1 and the two second upright columns 2. A plurality of engagement holes 50 are provided at intervals on the upper surface of the top frame 5, and a corresponding plurality of engagement holes 50 are provided on the lower surface of the top panel assembly 11. Two third partition columns 12 and two fourth partition columns 13 are located between the tabletop assembly 11 and the top frame 5, with the two third partition columns 12 spaced apart between the two first upright columns 1 and the two fourth partition columns 13 spaced apart between the two second upright columns 2. A first connecting groove 10 is formed on each opposing side of each third partition column 12, and a second connecting groove 20 is formed on each opposing side of each fourth partition column 13. A guide rail 3 is connected to each opposing side of each third partition column 12 and its corresponding fourth partition column 13. By adding two first partition columns 8 and two second partition columns 9 between the tabletop assembly 11 and the top frame 5, three drawers 7 can be arranged horizontally between the tabletop assembly 11 and the top frame 5.

[0039] As shown in Figures 14 and 15, Figure 14 is an exploded view of the third partition column, and Figure 15 is an exploded view of the fourth partition column. In this example, the third partition column 12 includes an elastic connecting member 82, a contact limiting member 83, and a third column 1201, with the elastic connecting member 82 and the contact limiting member 83 provided on both ends of the third column 1201. First connecting grooves 10 are provided on opposite sides of the third column 1201. The third column 1201 is movably connected between the top panel assembly 11 and the top frame 5 via the elastic connecting member 82 and the contact limiting member 83. The connection method is the same as that of the second partition column 9, and will not be described again here. The length of the third column 1201 can be changed as needed depending on the number of drawers 7 connected. The fourth partition post 13 includes an elastic connecting member 82, a contact limiting member 83, and a fourth pillar 1301, and the elastic connecting member 82 and the contact limiting member 83 are respectively provided on both ends of the fourth pillar 1301. Second connecting grooves 20 are respectively provided on opposite sides of the fourth pillar 1301. The connection method of the fourth partition post 13 is the same as that of the third partition post 12, and will not be repeated here.

[0040] As shown in Figure 16, Figure 16 is a schematic diagram showing a top plate assembly. The top plate assembly 11 includes a top plate 1101 and two connecting frames 1102, which are provided on both sides of the bottom of the top plate 1101 along the length of the top plate 1101. The top plate 1101 is detachably connected to the two connecting frames 1102 via screws. Each connecting frame 1102 has insertion ends 1103 at both ends, and the two insertion ends 1103 of one connecting frame 1102 are inserted into the tops of the two first uprights 1, respectively, and the two insertion ends 1103 of the other connecting frame 1102 are inserted into the tops of the two second uprights 2, respectively. Furthermore, an insertion hole 11030 is drilled in each insertion end 1103, each first upright 1, and each second upright 2. When the insertion end 1103 is inserted into the end of the first upright 1, the insertion hole 11030 of the insertion end 1103 corresponds to the insertion hole 11030 of the first upright 1. Then, a pin (not shown) is used to penetrate the insertion hole 11030 of the first upright 1 and the insertion hole 11030 of the insertion end 1103 in sequence, thereby stably connecting the insertion end 1103 to the first upright 1. When the insertion end 1103 is inserted into the end of the second upright 2, the insertion hole 11030 of the insertion end 1103 corresponds to the insertion hole 11030 of the second upright 2, and then a pin is used to penetrate the insertion hole 11030 of the second upright 2 and the insertion hole 11030 of the insertion end 1103 in sequence, so that the insertion end 1103 is stably connected to the second upright 2.

[0041] In summary, one end of the guide rail 3 is engaged with the first connecting groove 10 via the first connecting portion 32, and the other end is engaged with the second connecting groove 20 via the second connecting portion 33, thereby connecting the guide rail 3 to the first upright 1 and the second upright 2. The end of the guide portion 31 closest to the first connecting portion 32 is provided with a third connecting portion 34, which is perpendicular to the first connecting portion 32, and the second connecting portion 33 is detachably connected to the guide portion 31. During actual use, the guide rail 3 can be used for both left and right-hand use by swapping out the second connecting portion 33 for a different left- or right-hand orientation. A fastening assembly 62 is connected to the first upright 1 and the second upright 2, respectively. A fastening sleeve 61 is provided on the top frame 5 and the bottom frame 4, respectively. The first upright 1 is connected to the top frame 5 and the bottom frame 4 by mating the fastening sleeve 61 with the fastening assembly 62. In this way, when installing the storage cabinet, there is no need to use a fastening structure such as a screw to connect the cabinet, which effectively reduces the assembly time, simplifies and facilitates the assembly method of the storage cabinet, and makes it convenient for users to install and remove the cabinet.

[0042] The above is merely an embodiment of the present invention and does not limit the present invention. Those skilled in the art can make various changes and modifications to the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the scope of the claims of the present invention. [Explanation of symbols]

[0043] 1, 1st pillar 10. First connecting groove 2, second pillar 20. Second connecting groove 100, fixed hole 3. Guide rail 31. Guide section 311, first guide member 312, second guide member 32, first connection part 33, second connection part 330, connection slot 331 - Receiving piece 332, guide piece 333, Restriction block piece 334 , connecting member 34, third connection part 4, bottom frame 40, restriction hole 5. Top frame 50, attachment hole 6, Attachment structure 61, attachment sleeve 611, 3rd end 612, 4th end 62, latching assembly 621, 1st fastening piece 6211, 1st Enclosure 6212, first fastening member 622, 2nd fastening piece 6221, Second Enclosure 6222, second fastening member 623, first end 624, second end 7. Drawer 8. First partition pillar 81, 1st column 82, elastic connecting member 821, pedestal 8210, movable groove 8211, sliding groove 822, Spring 823 , movable connecting member 824, first limiting protrusion 825, latching protrusion 826 , pressing part 9. Second partition pillar 91, 2nd pillar 83, contact limiting member 831, Attendant seating 832, second limiting protrusion 833, contact piece 11. Top plate assembly 1101, top plate 1102, connection frame 1103, plug end 11030, insertion hole 12. Third partition pillar 1201, 3rd column 13. Fourth partition pillar 1301, 4th column body.

Claims

1. A connection structure for a storage cabinet, comprising a first upright (1), a second upright (2) and at least one guide rail (3), each of the guide rails (3) comprising a guide portion (31), a first connection portion (32), a second connection portion (33) and a third connection portion (34), the first connection portion (32) and the second connection portion (33) being respectively provided at opposite ends of the guide portion (31), the second connection portion (33) being detachably connected to the guide portion (31), and the third connection portion (34) being provided at the front The connection structure for a storage cabinet is characterized in that the first connecting portion (32) is provided at an end of the guide portion (31) close to the first connecting portion (32), and the first connecting portion (32) and the third connecting portion (34) are perpendicular to each other, at least one first connecting groove (10) is opened in the first upright (1), and at least one second connecting groove (20) is opened in the second upright (2), and each of the first connecting portions (32) is engaged with the first connecting groove (10), and each of the second connecting portions (33) is engaged with the second connecting groove (20).

2. 2. The connection structure of claim 1, wherein a connection slot (330) is formed in the second connection portion (33), and the end of the guide portion (31) remote from the first connection portion (32) is inserted into the connection slot (330).

3. 3. The connection structure of claim 2, wherein the second connection portion (33) includes a receiving piece (331), a guide piece (332), a limiting block piece (333), and a connecting member (334), the receiving piece (331), the guide piece (332), and the limiting block piece (333) are vertically connected to each other, the limiting block piece (333) is located at one end of the receiving piece (331) and the guide piece (332), the connecting member (334) is provided outside the guide piece (332), and the connecting slot (330) is opened at the end of the receiving piece (331) and the guide piece (332) away from the limiting block piece (333).

4. A storage cabinet includes two sets of storage cabinet connection structures, a bottom frame (4), a top frame (5), and at least eight sets of fastening structures (6), the two sets of storage cabinet connection structures are arranged directly opposite each other in parallel, and in the two sets of storage cabinet connection structures, at least one guide rail (3) provided in the connection structure of the storage cabinet of each set is equal in height to at least one guide rail (3) provided in the connection structure of the storage cabinet of the other set, and each The storage cabinet is characterized in that the attachment structure (6) includes an attachment sleeve (61) and an attachment assembly (62), the attachment sleeve (61) is provided at each of the four corners of the bottom frame (4) and the top frame (5), each of the first upright pillars (1) and each of the second upright pillars (2) is provided with two attachment assemblies (62) spaced apart in the vertical direction, each of the attachment sleeves (61) is fitted onto the outside of the attachment assembly (62), and the attachment sleeve (61) is attached to the attachment assembly (62).

5. The structure further includes at least one first partition pillar (8), at least one second partition pillar (9), and at least two of the guide rails (3), wherein the first partition pillar (8) is movably connected between the top frame (5) and the bottom frame (4), and is located between two of the first upright pillars (1), and at least one first connecting groove (10) is provided on each of the opposite sides of the first partition pillar (8); the second partition pillar (9) is movably connected between the bottom frame (4) and the top frame (5), and the second partition pillar (9) is located between two of the The storage cabinet of claim 4, characterized in that the storage cabinet is located between two upright columns (2), and at least one second connecting groove (20) is provided on each opposite side of the second partition column (9), and at least one guide rail (3) is provided on each opposite side of each of the first partition columns (8) and the second partition columns (9), and the first connecting portion (32) of each guide rail (3) is engaged with the first connecting groove (10), and the second connecting portion (33) of each guide rail (3) is engaged with the second connecting groove (20) provided at the same height.

6. 6. The storage cabinet of claim 5, wherein the first partition column (8) includes a first pillar (81) and an elastic connecting member (82), and at least one first connecting groove (10) is formed on each of opposite sides of the first pillar (81), the elastic connecting member (82) is connected to one end of the first pillar (81), a fastening hole (50) is formed in the top frame (5), one end of the elastic connecting member (82) is located in the fastening hole (50), and the other end of the first pillar (81) abuts against the bottom frame (4).

7. 7. The storage cabinet of claim 6, wherein the elastic connecting member (82) comprises a base (821), a spring (822), and a movable connecting member (823), wherein a movable groove (8210) is formed in the base (821), a first limiting protrusion (824) is provided at the bottom of the movable groove (8210), one end of the spring (822) is fitted outside the first limiting protrusion (824) and the spring (822) abuts the bottom of the movable groove (8210), the movable connecting member (823) is movably arranged in the movable groove (8210), the other end of the spring (822) abuts the bottom of the movable connecting member (823), a locking protrusion (825) is formed at the top of the movable connecting member (823), and the locking protrusion (825) is arranged in the locking hole (50).

8. The storage cabinet of claim 5, characterized in that the first partition pillar (8) further includes a contact limiting member (83), the contact limiting member (83) includes a locking seat (831) and a second limiting protrusion (832), the locking seat (831) is connected to an end of the first pillar body (81) away from the elastic connecting member (82), the second limiting protrusion (832) is arranged to protrude from one side of the locking seat (831), a limiting hole (40) is opened in the bottom frame (4), and the second limiting protrusion (832) is movably connected to the limiting hole (40).

9. The fastening assembly (62) includes a first fastening piece (621) and a second fastening piece (622), the first fastening piece (621) includes a first surrounding wall (6211) and a first fastening member (6212), the first fastening member (6212) is provided to protrude from the inside of the first surrounding wall (6211), the second fastening piece (622) includes a second surrounding wall (6221) and a second fastening member (6222), the second fastening member (6222) is , the storage cabinet of claim 4, characterized in that the first and second upright columns (1) and (2) are provided with fixing holes (100), the first and second upright columns (1) and (2) are provided with fixing holes (100), and the first and second fixing members (6212) and (6222) are provided to penetrate the fixing holes (100).

10. 5. The storage cabinet of claim 4, wherein the fastening assembly (62) has a first end (623) and a second end (624), an outer diameter of the fastening assembly (62) gradually increases along a direction from the first end (623) to the second end (624), the fastening sleeve (61) has a third end (611) and a fourth end (612), an inner diameter of the fastening sleeve (61) gradually increases along a direction from the third end (611) to the fourth end (612), and a minimum inner diameter of the fastening sleeve (61) is equal to or less than a minimum inner diameter of the fastening assembly (62), and a maximum inner diameter of the fastening sleeve (61) is equal to or less than a maximum outer diameter of the fastening assembly (62).

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