Sub-frame beam body connecting structure and sub-frame applying same

Abstract

The utility model provides a sub-frame beam body connecting structure and an applied sub-frame, the sub-frame beam body connecting structure is used for detachably fixing a sub-cross beam on a main cross beam, the sub-frame beam body connecting structure comprises a clamping fastener and a connecting hanging piece which are matched with each other, during assembling, a clamping main body on the clamping fastener is clamped on a first side face of the main cross beam, and then the main cross beam is connected with the connecting hanging piece; then the clamping hook piece on the clamping main body is clamped to the second side face of the main cross beam, the clamping buckle piece is detachably connected to the main cross beam, then the connecting hanging piece and the clamping main body are embedded to form stable connection, and then the auxiliary cross beam is connected to the other side of the connecting hanging piece; compared with the prior art, the goods shelf has the advantages that the goods shelf is more convenient and faster to assemble, the stability of the goods shelf is better after the goods shelf is assembled, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of paper puppet toys, in particular to a sub-frame beam body connection structure. Background Art

[0002] Shelves are often used to place goods in our daily life, and are divided into main frames and sub-frames. As the needs of use increase, in order to facilitate transportation and handling, most of the existing shelves can be disassembled and assembled; the sub-frame assembly on the market is mainly composed of sub-beams, columns, shelves, connecting fixtures and snap-on positioning parts. One end of the sub-beam needs to be fixedly connected to the main beam of the main frame through snap-on positioning parts and connecting fixtures. The existing sub-frame assembly structure is more troublesome to install, and the connection and fixing effect is not ideal, resulting in weak sub-frame load-bearing capacity and stability. Utility Model Content

[0003] The utility model aims to solve the technical problems of inconvenient assembly and weak stability of existing sub-frame structures, and to provide a sub-frame beam body connection structure, which has the advantages of convenient and quick assembly and better stability.

[0004] In order to solve the above technical problems, the technical solution of the utility model is:

[0005] A sub-frame beam body connection structure, used for detachably fixing the sub-crossbeam to the main crossbeam, the main crossbeam having a first side surface and a second side surface opposite to each other, the sub-frame beam body connection structure comprising a snap-fit ​​fastener and a connection hanger that cooperate with each other;

[0006] The snap fastener is detachably arranged on the main cross beam, and comprises a snap main body snapped on the first side surface, the snap main body is provided with a snap hook extending toward the second side surface, and the snap hook can be snapped on the second side surface;

[0007] One side of the connecting hanger is connected to the secondary crossbeam, and the other side forms a detachable engagement with the clamping body.

[0008] As described above, in the sub-frame beam connection structure, a plug-in slot is provided on the first side surface, and a plug-in strip matching and plugged into the plug-in slot is provided on the clamping body.

[0009] As described above, the sub-frame beam connection structure, the plug-in slot includes an upper slot arranged on the first side surface, the upper slot wall of the upper slot is provided with a slot portion recessed upward, the plug-in strip includes an upper insertion strip that can be matched and nested in the upper slot, and the upper insertion strip is provided with a card edge portion that protrudes upward to extend into the slot portion.

[0010] As described above, in the sub-frame beam connection structure, a top plate is provided at the upper end of the main cross beam, the upper slot is located at the connection between the first side surface and the top plate and extends in the transverse direction, and an upper convex edge is provided on the edge of the top plate and is bent downward into the upper slot, and the slot portion is formed between the upper convex edge and the first side surface.

[0011] As described above, in the sub-frame beam connection structure, a bottom plate is provided at the lower end of the main cross beam, the plug-in slot includes a lower slot which is laterally provided at the connection between the first side surface and the bottom plate and is recessed inwardly, and the plug-in strip includes a lower plug-in strip which can be matched and nested in the lower slot.

[0012] As described above in the sub-frame beam connection structure, the snap-fit ​​hook comprises an extension plate extending from the lower side of the snap-fit ​​main body to the bottom of the main cross beam, and the extension plate is provided with an upward-tilted snap-fit ​​hook foot at the end away from the snap-fit ​​main body, and the snap-fit ​​hook foot can be buckled on the lower edge of the second side surface.

[0013] In the sub-frame beam connection structure as described above, the middle portion of the extension plate body is in an arc shape that is concave downwards.

[0014] As described above in the sub-frame beam body connection structure, the rear end of the clamping hook foot is provided with a disassembly protrusion protruding outward.

[0015] In the sub-frame beam connection structure as described above, one of the clamping body and the connecting hanger is provided with an embedding groove, and the other is provided with an embedding slider that matches and embeds in the embedding groove.

[0016] As described above, the sub-frame beam connection structure, the embedded sliding groove includes a main embedded groove provided on the surface of the clamping body facing the connecting hanger, the main embedded groove is vertically arranged with an open top, and the cross-section of the main embedded groove is L-shaped with a narrow groove opening and a wide inside, and the embedded sliding block includes a main embedded block provided on the surface of the connecting hanger facing the clamping body, and the cross-section of the main embedded block is an inverted L-shaped with a narrow root and a wide outside to match the main embedded groove.

[0017] As described above, in the sub-frame beam connection structure, the embedding slide groove includes a side embedding groove provided on the side of the clamping body, the side embedding groove is a vertical arrangement with a top opening, and the embedding slide block includes a side embedding hook provided on one side of the connecting hanger and extending toward the side of the clamping body, and the end of the side embedding hook away from the connecting hanger can be matched and snapped into the side embedding groove.

[0018] In the sub-frame beam connection structure as described above, a limiting embedding groove with an upward opening is provided on the lower side of the clamping body, and a clamping protrusion that matches and plugs into the limiting embedding groove is provided at the bottom of the connecting hanger.

[0019] As described above, in the sub-frame beam connection structure, a limit hook is provided at the bottom of the clamping body, which extends outward first and then upward. The limit hook is used to buckle the bottom of the connecting hanger and / or support the sub-crossbeam when the connecting hanger is engaged on the clamping body.

[0020] The present application also provides a sub-frame, comprising a sub-crossbeam, wherein the end of the sub-crossbeam is detachably assembled on the main crossbeam using the above-mentioned sub-frame beam body connection structure.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] The present application provides a sub-frame beam connection structure and a sub-frame used therein, which is used to detachably fix the sub-beam to the main beam, and includes a snap-fit ​​fastener and a connecting hanger that cooperate with each other. During assembly, the snap-fit ​​main body on the snap-fit ​​fastener is first snap-fitted to the first side surface of the main beam, and then the snap-fit ​​hook on the snap-fit ​​main body is snap-fitted to the second side surface of the main beam, to complete the detachable connection of the snap-fit ​​fastener to the main beam, and then the connecting hanger is engaged with the snap-fit ​​main body to form a firm connection between the two, and then the sub-beam is connected to the other side of the connecting hanger, to complete the detachable and firm connection of the sub-beam to the main beam. Compared with the existing ones, the present application is more convenient and quick to assemble, and the assembled shelf is more stable and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the shelf in the embodiment of the utility model;

[0024] Figure 2 This is a schematic diagram of the structure behind the hidden layers of the shelf in the embodiment of the utility model;

[0025] Figure 3 This is a schematic structural diagram of another perspective of the shelf behind the hidden layer in the embodiment of the utility model;

[0026] Figure 4 for Figure 2 A magnified schematic diagram of part A;

[0027] Figure 5 for Figure 3 A magnified schematic diagram of part C;

[0028] Figure 6 This is an exploded schematic diagram of the shelf beam connection structure in the embodiment of the utility model;

[0029] Figure 7 It is an exploded schematic diagram of another perspective of the shelf beam connection structure in the embodiment of the utility model;

[0030] Figure 8 It is a transverse cross-sectional schematic diagram of the assembled shelf beam connection structure in the embodiment of the utility model;

[0031] Fig. 9 for Figure 2 A magnified schematic diagram of part B;

[0032] Fig.10 for Figure 3 An enlarged schematic diagram of part D in the middle;

[0033] Fig.11 It is an exploded schematic diagram of the sub-frame beam body connection structure in the embodiment of the utility model;

[0034] Fig.12 It is an exploded schematic diagram of another perspective of the sub-frame beam body connection structure in the embodiment of the utility model;

[0035] Fig.13 It is a longitudinal cross-sectional schematic diagram of the assembled sub-frame beam body connection structure in the embodiment of the utility model;

[0036] Fig.14 It is a schematic transverse cross-sectional view of the assembled shelf beam connection structure in an embodiment of the utility model. DETAILED DESCRIPTION

[0037] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0038] like Figure 9-14As shown, the sub-frame beam body connection structure is used to detachably fix the sub-crossbeam 5 to the main crossbeam 1, and the main crossbeam 1 has a first side surface 11 and a second side surface 12 opposite to each other. The sub-frame beam body connection structure includes a snap-on fastener 6 and a connecting hanger 7 that cooperate with each other; the snap-on fastener 6 is detachably arranged on the main crossbeam 1, including a snap-on main body 61 snap-on to the first side surface 11, and the snap-on main body 61 is provided with a snap-on hook 62 extending toward the second side surface 12, and the snap-on hook 62 can be snap-on to the second side surface 12; one side of the connecting hanger 7 is connected to the sub-crossbeam 5, and the other side is connected to the snap-on main body A detachable fit is formed between the body 61. When assembling the present application, the snap-on body 61 on the snap-on fastener 6 is first snap-connected to the first side 11 of the main beam 1, and then the snap-on hook 62 on the snap-on body 61 is snap-connected to the second side 12 of the main beam 1, to complete the detachable connection of the snap-on fastener 6 to the main beam 1, and then the connection hanger 7 and the snap-on body 61 are fit together to form a firm connection between the two, and then the secondary beam 5 is connected to the other side of the connection hanger 7, to complete the detachable and firm connection of the secondary beam to the main beam. Compared with the existing ones, the present application is more convenient and quick to assemble, and the shelf is more stable and practical after assembly.

[0039] Furthermore, if Fig.11 and 13 As shown, a plug-in groove 13 is provided on the first side surface 11, and a plug-in strip 63 matching and plugged into the plug-in groove 13 is provided on the snap-in body 61. The snap-in fastener 6 of the present application and the main beam 1 are snap-fitted to achieve snap-in, which makes the assembly more convenient, and the interlocking design increases the stability of the connection.

[0040] Furthermore, if Fig.11 and 13 As shown, the plug-in slot 13 includes an upper slot 131 arranged on the first side 11, and the upper side slot wall of the upper slot 131 is provided with a slot portion 15 recessed upward, and the plug-in strip 63 includes an upper plug-in strip 631 that can be matched and nested in the upper slot 131, and the upper plug-in strip 631 is provided with a card edge portion 633 that protrudes upward to extend into the slot portion 15. During assembly, the plug-in strip 63 is inserted into the upper slot 131, and the card edge portion 633 is snapped into the slot portion 15 to form a snap-fit ​​connection, and then the snap-fit ​​hook 62 is snapped onto the second side 12 of the main beam 1, so that the snap-fit ​​fastener 6 is detachably connected to the main beam 1. This design can improve assembly stability.

[0041] As a specific embodiment of the present application, a top plate 14 is provided at the upper end of the main cross beam 1, the upper slot 131 is located at the connection between the first side surface 11 and the top plate 14 and extends in the transverse direction, and the edge of the top plate 14 is provided with an upper convex edge 16 bent downward into the upper slot 131, and the slot portion 15 is formed between the upper convex edge 16 and the first side surface 11. Fig.13 As shown, in a specific embodiment of the present application, the edge of the top plate 14 is bent downward to form a hook, which can form a stable clamping connection with the clamping edge portion 633 at the end of the upper insertion strip 631 to improve assembly stability.

[0042] Furthermore, a bottom plate 17 is provided at the lower end of the main crossbeam 1, and the plug-in slot 13 includes a lower slot 132 which is laterally arranged at the connection between the first side surface 11 and the bottom plate 17 and is recessed inwardly, and the plug-in strip 63 includes a lower plug-in strip 632 which can be matched and nested in the lower slot 132. The first side surface 11 of the present application is respectively provided with an upper slot 131 and a lower slot 132 which are laterally arranged up and down, and the two layers of nesting can provide a more stable vertical constraint, further increasing the connection stability and support.

[0043] Furthermore, if Figure 10-12 As shown, the snap-on hook 62 includes an extension plate 621 extending from the lower side of the snap-on body 61 to the bottom of the main beam 1, and the extension plate 621 is provided with a snap-on hook foot 622 tilted upward at the end away from the snap-on body 61, and the snap-on hook foot 622 can be snapped onto the lower edge 18 of the second side surface 12. When assembling the present application, the snap-on body 61 is first snapped onto the first side surface 11, and then the snap-on structure 62 is snapped onto the lower edge 18 of the second side surface 12 to complete the assembly of the snap-on fastener 6, which has the advantages of efficient and convenient assembly.

[0044] Furthermore, if Figure 11-13 As shown, the middle portion of the extension plate 621 is an arc-shaped concave downward; this design can provide the extension plate 621 with a deformation buffer space, making it easy to connect or remove the extension plate 621 from the lower edge 18.

[0045] Furthermore, if Figure 11-13 As shown, the rear end of the snap-fit ​​hook foot 622 is provided with a disassembly protrusion 623 protruding outward, and this design facilitates disassembly.

[0046] Furthermore, if Figure 11-14 As shown, one of the clamping body 61 and the connecting hanger 7 is provided with an embedding groove 64, and the other is provided with an embedding slider 71 that matches and embeds into the embedding groove 64. In the present application, the clamping body 61 and the connecting hanger 7 are connected through the embedding groove 64 and the embedding slider 71 to improve the stability of the connection.

[0047] Furthermore, the embedding groove 64 includes a main embedding groove 641 arranged on the surface of the snap-fit ​​body 61 facing the connecting hanger 7. The main embedding groove 641 is a vertical arrangement with a top opening. During assembly, the connecting hanger 7 is slid downward from the upper side of the snap-fit ​​fastener 6. At this time, the embedding slider 71 on the connecting hanger 7 enters the main embedding groove 641 of the snap-fit ​​fastener 6 to form an embedding, thereby improving the assembly stability.

[0048] Furthermore, the cross-section of the main embedding groove 641 is L-shaped with a narrow groove opening and a wide interior. The embedding slider 71 includes a main embedding block 711 provided on the surface of the connecting hanger 7 facing the clamping body 61. The cross-section of the main embedding block 711 is an inverted L-shape with a narrow root and a wide exterior that matches the main embedding groove 641. Setting the main embedding groove 641 to be L-shaped with a narrow groove opening and a wide interior can make the connection between the two more stable and improve the assembly stability.

[0049] Furthermore, the embedding groove 64 includes a side embedding groove 642 arranged on the side of the snap-fit ​​body 61, and the side embedding groove 642 is a vertical arrangement with a top opening. The embedding slider 71 includes a side embedding hook 712 arranged on one side of the connecting hanger 7 and extending toward the side of the snap-fit ​​body 61, and the end of the side embedding hook 712 away from the connecting hanger 7 can be matched and snapped into the side embedding groove 642; during assembly, the connecting hanger 7 is slid downward from the upper side of the snap-fit ​​fastener 6, and at this time, the embedding slider 71 on the connecting hanger 7 enters the side embedding groove 642 of the snap-fit ​​fastener 6 to form a side snapping, thereby improving the assembly stability.

[0050] Furthermore, if Figure 11-12 A limiting embedding groove 65 with an opening facing upward is provided on the lower side of the snap-fit ​​main body 61, and a snap-fitting protrusion 72 matching and plugging with the limiting embedding groove 65 is provided at the bottom of the connecting hanger 7; in the specific embodiment of the present application, limiting embedding grooves 65 are provided at the two lower corners of the snap-fit ​​main body 61 close to the connecting hanger 7, which can correspond to the snap-fitting protrusions 72 at the two lower corners of the socket connecting hanger 7. This design can further improve the stability of the lower connection between the snap-fit ​​fastener 6 and the connecting hanger 7.

[0051] A limiting hook 66 extending outward and then upward is provided at the bottom of the snap-fit ​​main body 61. The limiting hook 66 is used to buckle the bottom of the connecting hanger 7 when the connecting hanger 7 is engaged on the snap-fit ​​main body 61. This design can further improve the stability of the lower connection between the snap-fit ​​fastener 6 and the connecting hanger 7. Another function of the limiting hook 36 is to support the secondary crossbeam 5, making the assembly more compact.

[0052] The assembly process of the sub-frame beam connection structure in the embodiment is as follows: according to the required installation position, the plug-in strip 63 on the snap-in fastener 6 is plugged into the plug-in groove 13 on the first side 11 of the main crossbeam 1, and then the snap-in hook 62 on the snap-in fastener 6 is snapped onto the lower edge 18 on the second side 12 of the main crossbeam 1. The snap-in fastener 6 is installed on the main crossbeam 1, and then the connecting hanger 7 is slid downward from the upper side of the snap-in fastener 6. At this time, the main embedding block 711 on the front of the connecting hanger 7 slides into the main embedding groove 641 on the front of the snap-in body 61 to form a nested snap-in connection, and the side embedding hook 712 on the side of the connecting hanger 7 slides into the side embedding groove 642 on the side of the snap-in body 61 to form a snap-in connection. Then, the sub-crossbeam 5 is connected to the other side of the connecting hanger 7 to complete the assembly of the sub-crossbeam on the main crossbeam.

[0053] The disassembly process of the sub-frame beam connection structure in the embodiment is as follows: pull the connecting hanger 7 upward relative to the snap fastener 6, the main embedding block 711 and the side embedding hook 712 of the connecting hanger 7 leave the main embedding groove 641 and the side embedding groove 642 on the snap body 61 respectively, separate the connecting hanger 7 from the snap fastener 6, and then press the disassembly protrusion 623 on the snap hook 62 downward to make the snap hook foot 622 on the snap hook 62 separate from the lower edge 18 of the second side surface 12 of the main crossbeam 1. At this time, the snap fastener 6 is removed from the main crossbeam 1, and the sub-crossbeam is removed from the main crossbeam.

[0054] like Figure 4-8 As shown, the shelf beam connection structure is used to detachably fix the main beam 1 to the column 2, and the column 2 has a first side 21 and a second side 22 opposite to each other. The shelf beam connection structure includes a positioning hanger 3 and a locking fastener 4 that cooperate with each other; the positioning hanger 3 is detachably arranged on the column 2 and can be positioned and clamped on the first side 21; one side of the locking fastener 4 is connected to the main beam 1, and the other side is detachably embedded with the positioning hanger 3, and can be buckled and clamped on the second side 22, so as to position the positioning hanger 3 on the first side 21. The hanger 3 is locked; when assembling the present application, the positioning hanger 3 is first positioned and connected to the first side edge 21 of the column 2 to complete the pre-positioning of the positioning hanger 3 on the column 2, and then the locking fastener 4 is snapped and connected to the second side edge 22, and a firm connection is formed between the locking fastener 4 and the positioning hanger 3 through the engagement between the locking fastener 4 and the positioning hanger 3, and the positioning hanger 3 positioned and connected to the column 2 is locked, and then the main beam 1 is connected to the locking fastener 4 to complete the detachable and firm connection of the main beam to the column. Compared with the existing ones, the present application is more convenient and quick to assemble, and the shelf is more stable and practical after assembly.

[0055] Furthermore, if Figure 6-8As shown, the positioning hanger 3 includes a hanger body 31 located between the first side 21 and the second side 22, and a hook portion 32 extending toward the first side 21 is provided on the hanger body 31, and the hook portion 32 can be positioned and snapped on the first side 21. Compared with the existing assembly structure that uses two buckle positioning pieces for assembly, the positioning hanger 3 of the present application is an integrated arrangement. During assembly, the hanger body 31 is attached to the surface of the column 2 between the first side 21 and the second side 22, and the hook portion 32 extends to the first side 21 and forms a positioning snap connection, so that the positioning hanger 3 can be detachably hung on the column 2, and the present application has the advantage of easy assembly.

[0056] Furthermore, if Figure 6-8 As shown, the locking fastener 4 includes a fastener body 41 connected to the main beam 1 on one side, and a fastener body 41 detachably engaged with the hanger body 31 on the other side of the fastener body 41, and a fastening hook portion 42 extending toward the second side 22 is provided on the fastener body 41, and the fastening hook portion 42 can be snapped and connected to the second side 22. The fastener body 41 and the hanger body 31 of the present application are designed to be snapped, which can improve the stability of the connection. The snapping hook portion 42 can be snapped and connected to the second side. Through this design, the hanger body 31 embedded in the fastener body 41 can be locked, so that the locking fastener and the positioning hanger 31 are fixedly connected to the column 2. The fastener body 41 of the present application is provided with a connecting column 46 for being inserted into the main beam 1 on the side away from the positioning hanger 3. Through this design, the main beam 1 can be detachably and firmly connected to the column 2.

[0057] Furthermore, if Figure 1-4 As shown, the first side edge 21 is provided with a plurality of positioning grooves 23 at intervals along its vertical direction. Figure 7 and 8 As shown, the hook portion 32 is provided with a clamping block 33 that matches and fits into the positioning groove 23. The positioning groove 23 is used to clamp the clamping block 33, so that the positioning hanger 3 can maintain a certain height. In this application, a plurality of positioning grooves 23 are arranged vertically on the first side 21. This design can assemble a shelf beam connection structure of a corresponding height according to the required height to place the layer plates 8 of different heights. Of course, the height interval between each layer plate 8 can also be adjusted according to the required interlayer height, which has the advantage of better adaptability.

[0058] Furthermore, if Figure 4As shown, the opening of the positioning groove 23 faces away from the side of the hanger body 31, and the first side edge 21 is provided on the edge of the same side of the column 2 of the present application, and the positioning groove 23 is relatively provided on the side where the two first side edges 21 are close to each other. This design enables the clamping block 33 on the positioning hanger 3 to be clamped into the positioning groove 23 to form a lateral constraint, so as to facilitate pre-positioning.

[0059] Furthermore, if Figure 7 and 8 As shown, the cross-section of the hook portion 32 is L-shaped and can be snapped onto the first side 21. This design allows one side of the positioning hanger 3 to be laterally constrained to the first side 21, and the snap-in block 33 on the hook portion 32 can be snapped into the positioning groove 23 to form a vertical constraint, thereby allowing the positioning hanger 3 to be pre-positioned on the column 2, which is convenient for the subsequent locking of the locking fastener 4.

[0060] Furthermore, if Figure 6-8 As shown, one of the hanger body 31 and the fastener body 41 is provided with an embedding groove 34, and the other is provided with an embedding block 44 that matches and embeds into the embedding groove 34. The hanger body 31 and the fastener body 41 of the present application are connected by the embedding groove 34 and the embedding block 44 to improve the stability of the connection.

[0061] Furthermore, if Figure 6-8 As shown, the engaging groove 34 is vertically arranged, and the top is an opening arrangement allowing the engaging block 44 to be inserted. During assembly, the positioning hanger 3 is first pre-positioned on the column 2, and then the locking fastener 4 is slid downward from the upper side of the positioning hanger 3. At this time, the engaging block 44 on the hanger body 31 enters into the engaging groove 34 on the fastener body 41 to form an engagement, thereby improving the stability of assembly.

[0062] Furthermore, if Figure 6-8 As shown, there are multiple engaging grooves 34 and they are arranged side by side on the side of the hanger body 31 facing the fastener body 41. In the specific embodiment of the present application, there are two engaging grooves 34 to further improve the assembly stability. The cross-section of the engaging groove 34 is an L-shape with a narrow notch and a wide inside. The engaging block 44 is arranged on the surface of the fastener body 41 facing the hanger body 31, and the cross-section of the engaging block 44 is an inverted L-shape that matches the root of the engaging groove 34, which is narrow and the outside is wide. Setting the engaging groove 34 to an L-shape with a narrow notch and a wide inside can make the connection between the two more stable and improve the assembly stability.

[0063] Furthermore, if Figure 5-8As shown, the cross-section of the snap hook portion 42 is an inverted L-shape and can be snapped onto the second side edge 22. When assembling the present application, the positioning hanger 3 is first pre-positioned on the column 2, and then the snap hook portion 42 of the fastener 1 is snapped onto the second side edge 22. The locking fastener 1 slides downward from the upper side of the positioning hanger 3. At this time, the engaging block 44 on the hanger body 31 enters into the engaging groove 34 on the fastener body 41 to form an engagement, thereby locking the positioning hanger 3 between the locking fastener 4 and the column 2 to improve assembly stability.

[0064] Furthermore, a positioning extension 37 extending toward the second side 22 is provided on one side of the hanger body 31 away from the hanging hook portion 32, and the positioning extension 37 is integrally arranged on the hanger body 31, and the positioning extension 37 can be placed on the second side 22, and the cross-section of the snap hook portion 42 is an inverted L-shape and can be snapped onto the positioning extension 37 and the second side 22. By setting the positioning extension 37, the present application can better pre-position the hanger body 31 on the column 2, and when the snap hook portion 42 is snapped onto the second side 22, the positioning extension 37 can be locked together to better lock the positioning hanger 3 and improve the assembly stability.

[0065] Furthermore, if Figure 6 and 7 As shown, a limiting slot 35 with an upward opening is provided on the lower side of the hanger body 31, and a limiting protrusion 45 which is plugged into and cooperates with the limiting slot 35 is provided on the bottom of the fastener body 41; in the specific embodiment of the present application, limiting slots 35 are provided at the two lower corners of the hanger body 31 close to the fastener body 41, which can correspond to the limiting protrusions 45 at the two lower corners of the fastener body 41. This design can further improve the stability of the lower connection between the positioning hanger 3 and the locking fastener 4.

[0066] Furthermore, a limiting hook portion 36 extending first outward and then upward is provided at the bottom of the hanger body 31. The limiting hook portion 36 is used to buckle the bottom of the locking fastener 4 when the locking fastener 4 is engaged on the hanger body 31. This design can further improve the stability of the connection between the lower sides of the positioning hanger 3 and the locking fastener 4. Another function of the limiting hook portion 36 is to support the main beam 1, making the assembly more compact.

[0067] Furthermore, the first side edge 21 and the second side edge 22 are respectively protruded in the shape of vertical bars on the adjacent corners of the column 2. More preferably, two groups of the first side edges 21 and the second side edges 22 are respectively protruded on the four corners of the column 2. The opposite surfaces of the column 2 of the present application are relatively provided with the first side edge 21 and the second side edge 22, wherein the positioning hanger 3 is clamped with the first side edge 21, the locking fastener 4 is engaged with the second side edge 22, and the positioning hanger 3 is locked on the column by the locking fastener 4.

[0068] The assembly process of the shelf beam connection structure in the embodiment is as follows: according to the required compartment height, firstly buckle the hook portion 32 on the positioning hanger 3 on the first side 21. At this time, the snap-in block 33 on the hook portion 32 is snapped into the positioning groove 23 of the required height on the first side 21, and a pre-positioning is formed between the positioning hanger 3 and the column 2. Then, the hook portion 42 of the fastener 1 is buckled on the second side 22, and the locking fastener 1 slides downward from the upper side of the positioning hanger 3. At this time, the engaging block 44 on the hanger body 31 enters the engaging groove 34 on the fastener body 41 to form an engagement, and the positioning hanger 3 located between the locking fastener 4 and the column 2 is locked. At this time, the positioning hanger 3 is in a locked state, and then the main beam 1 is connected to the other side of the locking fastener 4 to complete the assembly of the main beam on the column.

[0069] The disassembly process of the shelf beam connection structure in the embodiment is as follows: first pull the locking fastener 4 upward, and the engaging block 44 on the hanger body 31 leaves the engaging groove 34 on the fastener body 41. At this time, the locking state of the positioning hanger 3 is released, and the locking fastener 4 and the positioning hanger 3 can be taken out from the column 2 respectively to complete the removal of the main beam from the column.

[0070] Furthermore, the other end of the secondary beam 5 is connected to the column 2 through the above-mentioned shelf beam connection structure. The specific connection structure can refer to the shelf beam connection structure between the above-mentioned main beam 1 and the column 2. This design can improve assembly efficiency and connection strength.

[0071] A shelf, such as Figure 1-3 As shown, it includes a main frame and a sub-frame, the main frame includes multiple columns 2 and multiple main beams 1, the sub-frame includes multiple sub-beams 5 and multiple columns 2, one end of the sub-beam 5 is detachably assembled on the main beam 1 using the above-mentioned sub-frame beam body connection structure. During assembly, first, the snap-fitting body on the snap-fitting fastener is snap-fitted to the first side of the main beam, and then the snap-fitting hook on the snap-fitting body is snap-fitted to the second side of the main beam to complete the detachable connection of the snap-fitting fastener to the main beam, and then the connecting hanger is engaged with the snap-fitting body to form a firm connection between the two, and then the sub-beam is connected to the other side of the connecting hanger to complete the detachable and firm connection of the sub-beam to the main beam. Compared with the existing ones, the assembly of this application is more convenient and quick, and the shelf after assembly is more stable and practical.

[0072] Furthermore, the other end of the secondary crossbeam 5 is detachably assembled on the column 2 using the above-mentioned shelf beam connection structure. During assembly, the positioning hanger is first positioned and connected to the first side of the column to pre-position the positioning hanger on the column, and then the locking fastener is snapped and connected to the second side of the column. A firm connection is formed between the locking fastener and the positioning hanger through the engagement between the locking fastener and the positioning hanger, and the positioning hanger positioned on the column is locked, and then the secondary crossbeam is connected to the locking fastener to complete the detachable and firm connection of the secondary crossbeam to the column. Compared with the existing ones, the assembly of this application is more convenient and quick, and the shelf after assembly is more stable and practical.

[0073] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the protection scope of the present invention.

Claims

1. A sub-frame beam connection structure, used for detachably fixing a sub-crossbeam (5) to a main crossbeam (1), wherein the main crossbeam (1) has a first side surface (11) and a second side surface (12) opposite to each other, characterized in that: The sub-frame beam body connection structure comprises a clamping fastener (6) and a connection hanger (7) that cooperate with each other; The snap-fit ​​fastener (6) is detachably arranged on the main crossbeam (1), and comprises a snap-fit ​​body (61) snap-fitted to the first side surface (11), the snap-fit ​​body (61) being provided with a snap-fit ​​hook (62) extending toward the second side surface (12), and the snap-fit ​​hook (62) being snap-fitted to the second side surface (12); One side of the connecting hanger (7) is connected to the secondary crossbeam (5), and the other side forms a detachable engagement with the clamping body (61).

2. The sub-frame beam connection structure according to claim 1, characterized in that: The first side surface (11) is provided with an inserting groove (13), and the card connection body (61) is provided with an inserting strip (63) which matches and inserts into the inserting groove (13).

3. The sub-frame beam connection structure according to claim 2, characterized in that: The plug-in slot (13) comprises an upper slot (131) arranged on the first side surface (11); an upper slot wall of the upper slot (131) is provided with a card slot portion (15) recessed upward; the plug-in strip (63) comprises an upper plug-in strip (631) which can be matched and nested in the upper slot (131); and a card edge portion (633) protruding upward to extend into the card slot portion (15) is provided on the upper plug-in strip (631).

4. The sub-frame beam connection structure according to claim 3, characterized in that: A top plate (14) is provided at the upper end of the main cross beam (1), the upper slot (131) is located at the connection between the first side surface (11) and the top plate (14) and extends in the transverse direction, and an upper convex edge (16) is provided on the edge of the top plate (14) and is bent downward into the upper slot (131), and the slot portion (15) is formed between the upper convex edge (16) and the first side surface (11); and / or A bottom plate (17) is provided at the lower end of the main crossbeam (1), the plug-in slot (13) comprises a lower slot (132) which is transversely arranged at the connection between the first side surface (11) and the bottom plate (17) and is recessed inwardly, and the plug-in strip (63) comprises a lower plug-in strip (632) which can be matched and nested in the lower slot (132).

5. The sub-frame beam connection structure according to claim 1, characterized in that: The snap-fit ​​hook member (62) comprises an extension plate (621) extending from the lower side of the snap-fit ​​body (61) toward the bottom of the main cross beam (1), and an end of the extension plate (621) away from the snap-fit ​​body (61) is provided with a snap-fit ​​hook foot (622) tilted upward, and the snap-fit ​​hook foot (622) can be buckled on the lower edge (18) of the second side surface (12).

6. The sub-frame beam connection structure according to claim 5, characterized in that: The middle portion of the extension plate (621) is in an arc shape that is concave downwards; and / or The rear end of the clamping hook foot (622) is provided with a disassembly protrusion (623) protruding outward.

7. The sub-frame beam connection structure according to claim 1, characterized in that: One of the clamping body (61) and the connecting hanger (7) is provided with an embedding groove (64), and the other is provided with an embedding slider (71) matching and embedded in the embedding groove (64).

8. The sub-frame beam connection structure according to claim 7, characterized in that: The embedding slide groove (64) comprises a main embedding groove (641) provided on the surface of the clamping body (61) facing the connecting hanger (7), the main embedding groove (641) is vertically arranged with an open top, and the cross section of the main embedding groove (641) is L-shaped with a narrow notch and a wide interior, and the embedding slide block (71) comprises a main embedding block (711) provided on the surface of the connecting hanger (7) facing the clamping body (61), and the cross section of the main embedding block (711) is an inverted L-shaped with a narrow root and a wide exterior to match the main embedding groove (641); and / or The embedding slide groove (64) includes a side embedding groove (642) arranged on the side of the clamping body (61), and the side embedding groove (642) is vertically arranged with a top opening. The embedding slider (71) includes a side embedding hook (712) arranged on one side of the connecting hanger (7) and extending toward the side of the clamping body (61), and the end of the side embedding hook (712) away from the connecting hanger (7) can be matched and snapped into the side embedding groove (642).

9. The sub-frame beam connection structure according to claim 1, characterized in that: A limiting embedding groove (65) with an upward opening is provided on the lower side of the locking body (61), and a locking protrusion (72) matching and plugging with the limiting embedding groove (65) is provided on the bottom of the connecting hanger (7); and / or The bottom of the clamping body (61) is provided with a limit hook (66) which first extends outward and then upward, and the limit hook (66) is used to buckle the bottom of the connecting hanger (7) and / or support the secondary crossbeam (5) when the connecting hanger (7) is engaged on the clamping body (61).

10. A sub-frame, comprising a sub-crossbeam (5), characterized in that: The end of the secondary cross beam (5) is detachably assembled on the main cross beam (1) using the secondary frame beam body connection structure described in any one of claims 1 to 9.

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