CN218624949U

CN218624949U - Quick assembly disassembly formula sofa hardware connecting piece

Info

Publication number: CN218624949U
Application number: CN202222669960.XU
Authority: CN
Inventors: 李云海; 刘杰; 崔振; 李元清; 曹坤
Original assignee: Kuka Home Co Ltd
Current assignee: Kuka Home Co Ltd
Priority date: 2022-10-10
Filing date: 2022-10-10
Publication date: 2023-03-14
Anticipated expiration: 2032-10-10

Abstract

The application relates to a quick assembly disassembly type sofa hardware connecting piece, which comprises a lower supporting plate and an upper clamping plate, wherein the upper clamping plate is slidably arranged on the upper surface of the lower supporting plate; a bending plate is fixedly arranged on the side wall of the upper clamping plate opposite to the inserting block, one end of the bending plate is fixed on the upper clamping plate, and the other end of the bending plate is bent towards one side close to the lower supporting plate and extends to the lower surface of the lower supporting plate; the upper clamping plate is provided with a limiting component for limiting the insertion block to be separated from the insertion groove. The application provides a quick assembly disassembly formula sofa hardware connecting piece can improve the installation convenience between the sofa spare part.

Description

Quick assembly disassembly formula sofa hardware connecting piece

Technical Field

The application relates to the technical field of hardware connecting pieces, in particular to a quick assembly disassembly type sofa hardware connecting piece.

Background

The sofa is one of soft furniture, with the development of social economy, more and more combined sofas with a translational back frame and the like appear in the market, and a plurality of independent sofa parts are spliced together to form a complete sofa so as to facilitate the carrying and production of people; the sofa parts need to be spliced and fixed through hardware connecting pieces, and high requirements are provided for the dismounting performance of the sofa connecting pieces.

The existing combined sofa connecting pieces are usually connected by bolts, and various tools are needed during combination, so that time and labor are wasted, and further optimization is needed.

SUMMERY OF THE UTILITY MODEL

In order to improve the installation convenience between cardboard and the bottom plate, this application provides a quick assembly disassembly formula sofa hardware connecting piece.

The application provides a quick assembly disassembly formula sofa hardware connecting piece adopts following technical scheme:

a quick assembly disassembly type sofa hardware connecting piece comprises a lower supporting plate and an upper clamping plate which is slidably arranged on the upper surface of the lower supporting plate, wherein an installation plate is arranged on the edge of the side edge of the upper surface of the lower supporting plate, an insertion groove is formed in the surface of the installation plate, and an insertion block which is inserted into the insertion groove is arranged on the side wall, close to the installation plate, of the upper clamping plate; a bending plate is fixedly arranged on the side wall of the upper clamping plate opposite to the inserting block, one end of the bending plate is fixed on the upper clamping plate, and the other end of the bending plate is bent towards one side close to the lower supporting plate and extends to the lower surface of the lower supporting plate; the upper clamping plate is provided with a limiting component for limiting the plug-in block to be separated from the plug-in groove.

By adopting the technical scheme, through the arrangement of the mounting plate and the bending plate, when the upper clamping plate is mounted, the upper clamping plate is placed on the upper surface of the lower supporting plate, then the upper clamping plate is pushed to move towards one side close to the mounting plate and the inserting block is forced to be inserted into the inserting groove, and at the moment, the free end of the bending plate can move to the lower surface of the lower supporting plate so as to be clamped on the lower supporting plate together with the upper clamping plate; the plug-in block is limited by the limiting component to be separated from the plug-in groove, so that the upper clamping plate is fixedly connected with the lower supporting plate, the upper clamping plate can be fixedly connected with the lower supporting plate without bolts, and the installation convenience between the upper clamping plate and the lower supporting plate is improved.

Optionally, a clamping groove penetrating through the lower supporting plate is formed in the surface, close to the upper clamping plate, of the lower supporting plate, a mounting groove penetrating through the upper clamping plate is formed in the surface of the upper clamping plate, and the mounting groove and the clamping groove are arranged oppositely; the limiting assembly comprises a bolt which is slidably arranged in the mounting groove and a clamping column which is fixed on the bolt; the bolt is provided with a pressing piece used for forcing the clamping column to be clamped in the clamping groove.

Through adopting foretell technical scheme, through the setting of bolt and joint post, peg graft in the inserting groove after the grafting piece, drive the bolt through the piece that supports and slide at the mounting groove and force the joint post to peg graft in the joint groove to the free slip of restriction upper bracket board reduces the grafting piece and breaks away from the inserting groove and lead to the possibility that the cardboard breaks away from the bottom plate.

Optionally, a mounting frame is arranged on the surface of the upper clamping plate far away from the lower supporting plate, and the mounting frame is provided with a sliding groove for a bolt to pass through; the pressing part comprises a butt plate fixedly installed on the outer peripheral wall of the bolt and a compression spring sleeved on the outer peripheral wall of the bolt, the butt plate is located between the mounting frame and the upper clamping plate, the compression spring is installed between the mounting frame and the butt plate, and the compression spring normally urges the clamping column to be clamped in the clamping groove.

By adopting the technical scheme, through the arrangement of the compression spring and the abutting plate, when the clamping plate is installed, the bolt is pushed to slide in the sliding groove and is forced to move towards one side close to the installation frame, and at the moment, the compression spring can be compressed to have elasticity; then promote the cardboard and force the grafting piece to peg graft in the inserting groove after, the mounting groove can just be to the joint groove this moment, and the bolt can move and force the joint post to peg graft in the joint groove towards the one side that is close to the joint groove under compression spring's effect to going up cardboard and bottom plate and carrying out fixed connection, the installation effectiveness between cardboard and the bottom plate is gone up in the improvement.

Optionally, the side wall of the lower supporting plate, which is far away from the mounting plate, is provided with a moving groove communicated with the clamping groove, and the free end of the clamping column is provided with a spherical surface.

Through adopting foretell technical scheme, setting through spherical face and shifting chute, in the one side removal in-process that the grafting piece of cardboard was close to the inserting chute in the promotion, the spherical face of joint post can butt in the lateral wall of shifting chute, the bolt passes through the guide effect of the spherical face of joint post and removes towards the one side that is close to the mounting bracket, thereby can compress compression spring, just behind the joint groove when the mounting groove, the bolt can force the joint post to peg graft in the joint groove under compression spring's effect, further improve the installation convenience between cardboard and the bottom plate.

Optionally, the clamping column is provided with a cutting surface, the cutting surface and the side wall of the lower supporting plate far away from the mounting plate are arranged oppositely, and the shape of the clamping groove is matched with that of the clamping column.

Through adopting foretell technical scheme, through the setting of cutting the face, the joint post is pegged graft behind the joint groove, when external effort forces the cardboard to deposit the driving force of keeping away from mounting panel one side, the cutting face can firmly butt in the lateral wall in joint groove, and the cutting face can improve the firm in connection nature between joint post and the joint groove, reduces the external driving force and leads to the possibility that the joint post breaks away from the joint groove.

Optionally, the lateral wall fixed mounting that the butt plate is close to the joint post has the catch bar, works as the joint post joint is in the joint groove, the catch bar is located the shifting chute and partially exposes in the shifting chute and keeps away from one side of last cardboard, the lateral wall of mounting groove is offered and is used for dodging the groove of catch bar.

Through adopting foretell technical scheme, setting through the catch bar, when needs are dismantled and are gone up being connected of cardboard and bottom plate, promote the catch bar and remove and force the joint post to break away from the joint groove towards one side that is close to the mounting bracket, draw together the pulling and force the grafting piece of going up the cardboard to break away from the inserting groove, just can remove the fixed action between last cardboard and the bottom plate, cardboard demountable installation in bottom plate in the messenger, the dismouting convenience between cardboard and the bottom plate is gone up in the improvement.

Optionally, the notch of the moving groove far away from the clamping groove is in flaring arrangement.

Through adopting foretell technical scheme, the notch of keeping away from the joint groove with the shifting chute is the flaring setting, can be convenient for the joint post gets into the shifting chute fast, improves the installation effectiveness of last cardboard.

Optionally, the side wall of the moving slot has a guide surface.

Through adopting foretell technical scheme, through the setting of spigot surface, the grafting piece of last cardboard removes the in-process towards one side near the inserting groove, and the spherical face of joint post supports pastes in the spigot surface, and the smooth and easy degree that the joint post of direction removed towards mounting bracket one side can further be improved in the cooperation of spherical face and spigot surface.

Optionally, limit plates are fixedly mounted on the two side edges of the upper surface of the lower supporting plate adjacent to the mounting plate, and the upper clamping plate is slidably mounted between the two limit plates.

Through adopting foretell technical scheme, through the setting of limiting plate, cardboard in two limiting plates can fix a position fast forces the grafting piece of going up the cardboard to aim at the inserting groove in the mounting panel fast to the grafting piece can be pegged graft in the inserting groove fast, improves overall structure's installation effectiveness.

Optionally, the inserting blocks and the bending plate are all provided with multiple groups and arranged at intervals along the length direction of the upper clamping plate, the mounting plate is provided with multiple inserting grooves, and the inserting grooves are arranged opposite to all the inserting blocks one to one.

Through adopting foretell technical scheme, bend the board through setting up many groups of inserted blocks and multiunit, can further increase the joint strength between cardboard and the bottom plate, improve the firm in connection nature between cardboard and the bottom plate.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the arrangement of the mounting plate and the bending plate, when the upper clamping plate is mounted, the upper clamping plate is placed on the upper surface of the lower supporting plate, then the upper clamping plate is pushed to move towards one side close to the mounting plate and force the splicing block to be spliced in the splicing groove, and at the moment, the free end of the bending plate can move to the lower surface of the lower supporting plate so as to be clamped on the lower supporting plate together with the upper clamping plate; then, the insertion block is limited by the limiting assembly to be separated from the insertion groove, so that the upper clamping plate is fixedly connected with the lower supporting plate, the upper clamping plate can be fixedly connected with the lower supporting plate without bolts, and the installation convenience between the upper clamping plate and the lower supporting plate is improved;

2. through the arrangement of the compression spring and the abutting plate, when the clamping plate is installed, the bolt is pushed to slide in the sliding groove and is forced to move towards one side close to the installation frame, and at the moment, the compression spring can be compressed to store elasticity; then the upper clamping plate is pushed and the inserting block is forced to be inserted into the inserting groove, the installing groove can face the clamping groove, the bolt can move towards one side close to the clamping groove under the action of the compression spring and force the clamping column to be inserted into the clamping groove, and therefore the upper clamping plate is fixedly connected with the lower supporting plate, and the installing efficiency between the upper clamping plate and the lower supporting plate is improved;

3. through the setting of spherical face and shifting chute, in the one side removal in-process of the grafting piece towards being close to the inserting groove of cardboard in promoting, the spherical face of joint post can the butt in the lateral wall of shifting chute, the bolt removes towards the one side that is close to the mounting bracket through the guide effect of the spherical face of joint post, thereby can compress compression spring, just behind the joint groove when the mounting groove, the bolt can force the joint post to peg graft in the joint groove under compression spring's effect, further improve the installation convenience between cardboard and the bottom plate.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is a schematic view of a structure in which the lower plate is embodied separately;

FIG. 3 is a schematic structural view of an upper card board embodied separately;

fig. 4 is a schematic structural diagram showing a position limiting assembly.

Description of reference numerals: 1. a lower supporting plate; 11. mounting a plate; 111. inserting grooves; 12. a clamping groove; 13. a moving groove; 131. a guide surface; 14. a limiting plate; 15. a guide groove; 2. an upper clamping plate; 21. an insertion block; 22. bending a plate; 23. mounting grooves; 231. an avoidance groove; 24. a mounting frame; 241. a sliding groove; 25. a connecting plate; 251. a vertical portion; 252. a parallel portion; 26. hooking the groove; 3. a limiting component; 31. a bolt; 32. a clamping column; 321. a spherical surface; 322. cutting the surface; 33. a pressing member; 331. a butt joint plate; 332. a compression spring; 4. a push rod.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses quick assembly disassembly formula sofa hardware connecting piece.

Referring to fig. 1, a quick assembly disassembly formula sofa hardware connecting piece, including bottom plate 1 and install in the last cardboard 2 of bottom plate 1 upper surface, bottom plate 1 and last cardboard 2 are used for connecting the different spare parts of sofa respectively, through bottom plate 1 and last cardboard 2 fixed connection between the different spare parts of sofa.

Referring to fig. 1 and 2, an installation plate 11 is fixedly installed at the edge of the side edge of the upper surface of the lower supporting plate 1, and a limit plate 14 is fixedly installed at both edges of the upper surface of the lower supporting plate 1 adjacent to the installation plate 11; in this embodiment, the lower supporting plate 1 and the mounting plate 11, and the lower supporting plate 1 and the limiting plate 14 are integrally formed sheet metal bending pieces; a guide groove 15 is formed between the lower supporting plate 1 and the mounting plate 11 as well as between the two limiting plates 14, and the upper clamping plate 2 is slidably mounted in the guide groove 15.

Referring to fig. 1 and 3, the upper surface of the upper card board 2 is fixedly provided with connecting plates 25 at both side edges close to the limiting plates 14, each connecting plate 25 comprises a vertical part 251 and a parallel part 252, the vertical part 251 is fixedly arranged at the side edge of the upper surface of the upper card board 2, the vertical part 251 is perpendicular to the upper card board 2, and the vertical part 251 is attached to the corresponding limiting plate 14; the parallel part 252 is fixedly arranged on the end face, away from the upper clamping plate 2, of the vertical part 251, and the parallel part 252 is arranged in parallel with the upper clamping plate 2; the plate surface of the parallel part 252 is provided with a plurality of threaded holes, and the parallel part 252 is used for being fixedly connected with parts of the sofa; in this embodiment, the upper clamping plate 2 and the connecting plate 25 are integrally formed sheet metal bending parts.

Referring to fig. 1 and 2, a plurality of insertion grooves 111 penetrating through the mounting plate 11 are formed on the plate surface of the mounting plate 11, and in this embodiment, the insertion grooves 111 are arranged at intervals along the length direction of the mounting plate 11; go up cardboard 2 and be close to the lateral wall fixed mounting of mounting panel 11 and peg graft in the piece 21 of inserting groove 111, in this embodiment, the piece 21 sets up a plurality ofly and sets up along the length direction interval of last cardboard 2, and all pieces 21 and all inserting grooves 111 set up one-to-one.

Referring to fig. 1 and 3, a plurality of bending plates 22 are fixedly mounted on the side wall of the upper clamping plate 2 away from the insertion block 21, and in this embodiment, the bending plates 22 are arranged at intervals along the length direction of the upper clamping plate 2; one end of the bending plate 22 is fixedly arranged on the side wall of the upper clamping plate 2, the other end of the bending plate is bent towards one side close to the lower supporting plate 1 and extends to the lower surface of the lower supporting plate 1, and a hooking groove 26 is formed between the bending plate 22 and the upper clamping plate 2; when the inserting block 21 is inserted into the inserting groove 111, the lower supporting plate 1 is inserted into the hooking groove 26; the upper clamping plate 2 is provided with a limiting component 3 for limiting the insertion block 21 to be separated from the insertion groove 111.

When the upper clamping plate 2 is installed, the upper clamping plate 2 is placed in the guide groove 15, then the upper clamping plate 2 is pushed to move towards one side close to the installation plate 11 and the insertion block 21 is forced to be inserted in the insertion groove 111, when the insertion block 21 is inserted in the insertion groove 111, the free end of the bending plate 22 moves to the small surface of the lower supporting plate 1, and therefore the lower supporting plate 1 is inserted in the hooking groove 26; go up cardboard 2 this moment and be fixed in bottom plate 1 in the effect joint of grafting piece 21 and the board 22 of bending under, then break away from inserting groove 111 through 3 restriction grafting pieces of spacing subassembly 21 to going up cardboard 2 and bottom plate 1 fixed connection, improving the installation convenience between cardboard 2 and the bottom plate 1.

Referring to fig. 2 and 3, the joint groove 12 that runs through the bottom plate 1 is seted up to the face of bottom plate 1, and the mounting groove 23 that runs through the last cardboard 2 is seted up to the face of going up cardboard 2, and mounting groove 23 sets up with joint groove 12 is relative.

Referring to fig. 1, an installation frame 24 is erected on the upper surface of the upper clamping plate 2, in this embodiment, the installation frame 24 is a bent sheet metal member shaped like a Chinese character 'ji', and two ends of the installation frame 24 are fixedly connected with the upper surface of the upper clamping plate 2 through bolts; the sliding groove 241 is formed in the plate surface of the mounting frame 24, and the sliding groove 241 is opposite to the mounting groove 23.

Referring to fig. 1 and 4, the limiting component 3 includes a bolt 31, a clamping column 32 and a pressing part 33, the bolt 31 is slidably installed between the installation groove 23 and the sliding groove 241, the clamping column 32 is fixedly installed at one end, far away from the installation frame 24, of the bolt 31, and the pressing part 33 normally forces the clamping column 32 to be inserted into the clamping groove 12.

Referring to fig. 1 and 4, the abutting member 33 includes an abutting plate 331 and a compression spring 332, the abutting plate 331 is fixedly mounted on the outer peripheral wall of the plug 31, the abutting plate 331 is located between the mounting frame 24 and the upper clamping plate 2, the compression spring 332 is sleeved on the outer peripheral wall of the plug 31, one end of the compression spring 332 is fixedly mounted on the mounting frame 24, the other end of the compression spring 332 is fixedly mounted on the side wall of the abutting plate 331 close to the mounting frame 24, and the compression spring 332 normally forces the clamping column 32 to be clamped in the clamping groove 12.

Referring to fig. 1 and 2, a moving groove 13 communicated with the clamping groove 12 is formed in the side wall of the lower supporting plate 1 away from the mounting plate 11, and an avoiding groove 231 is formed in the side wall of the mounting groove 23 away from the mounting plate 11; the abutting plate 331 is fixedly provided with a pushing rod 4 for pushing the bolt 31 to slide in the mounting groove 23 near the side wall of the clamping column 32.

Referring to fig. 2 and 4, the end surface of the latch 32 away from the plug 31 has a spherical surface 321, and the side wall of the moving slot 13 has a guide surface 131.

When the upper clamping plate 2 is placed on the upper surface of the lower supporting plate 1 and pushed towards one side of the mounting plate 11, the spherical surface 321 of the clamping column 32 can abut against the guide surface 131 of the moving groove 13, the clamping column 32 can move towards one side close to the mounting frame 24 through the spherical surface 321 and the guide surface 131 in the moving process, so that the clamping column 32 is forced to move into the mounting groove 23, when the inserting block 21 is inserted into the inserting groove 111, the mounting groove 23 is right opposite to the clamping groove 12, the clamping column 32 can be clamped into the clamping groove 12 under the action of the compression spring 332, so that the upper clamping plate 2 is fixedly connected with the lower supporting plate 1, and the mounting convenience of the upper clamping plate 2 and the lower supporting plate 1 is improved; when dismantling cardboard 2 and bottom plate 1 and being connected, promote catch bar 4 and force joint post 32 to move to mounting groove 23 in, catch bar 4 can partly move this moment and dodge groove 231, then the pulling catch bar 4 slides towards one side that is close to the shifting chute 13 and shifts out along shifting chute 13 to make cardboard 2 and bottom plate 1 separate, improve the dismouting convenience between cardboard 2 and the bottom plate 1.

Referring to fig. 2 and 4, a cutting surface 322 is formed on the peripheral wall of the clamping column 32, the cutting surface 322 is parallel to the side wall of the lower supporting plate 1 close to the bending plate 22, the cutting surface 322 and the side wall of the lower supporting plate 1 close to the bending plate 22 are oppositely arranged, and the shape of the clamping groove 12 is matched with the shape of the clamping column 32; so design, when external effort forces go up cardboard 2 and have had the driving force towards keeping away from mounting panel 11 one side, cutting face 322 can firmly butt in the lateral wall of joint groove 12, reduces the possibility that external driving force leads to joint post 32 to break away from joint groove 12.

Referring to fig. 1 and 2, the moving groove 13 is arranged away from the notch of the clamping groove 12 in a flaring manner; so design, the shifting chute 13 notch that the flaring set up can be convenient for joint post 32 to get into shifting chute 13 fast, improves the efficiency that cardboard 2 installed in bottom plate 1.

The application principle of this application quick assembly disassembly formula sofa hardware connecting piece does: when the upper clamping plate 2 is installed, the upper clamping plate 2 is placed in the guide groove 15 and pushes the upper clamping plate 2, the inserting block 21 of the upper clamping plate 2 is forced to move towards one side close to the inserting groove 111, the bending plate 22 can move to the lower surface of the lower supporting plate 1 when the upper supporting plate moves, so that the lower supporting plate 1 is clamped in the hooking groove 26, in the process, the clamping column 32 can move towards one side close to the installation frame 24 under the action of the spherical surface 321 and move into the installation groove 23 when passing through the moving groove 13, after the inserting block 21 is inserted in the inserting groove 111, the installation groove 23 can be right opposite to the clamping groove 12, the clamping column 32 can be clamped into the clamping groove 12 under the elasticity of the compression spring 332, and the upper clamping plate 2 is fixedly installed on the lower supporting plate 1; when dismantling cardboard 2, promote catch bar 4 and force joint post 32 to break away from joint groove 12, then 2 forces plug-in block 21 to break away from inserting groove 111 of cardboard in the pulling, just can make cardboard 2 and bottom plate 1 separate on, the dismouting convenience between cardboard 2 and the bottom plate 1 is gone up in the improvement.

The above is a preferred embodiment of the present application, and the scope of protection of the present application is not limited by the above, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a quick assembly disassembly formula sofa hardware connecting piece which characterized in that: the clamp comprises a lower supporting plate (1) and an upper clamping plate (2) which is slidably arranged on the upper surface of the lower supporting plate (1), wherein an installation plate (11) is arranged on the edge of the side edge of the upper surface of the lower supporting plate (1), an insertion groove (111) is formed in the surface of the installation plate (11), and an insertion block (21) which is inserted into the insertion groove (111) is arranged on the side wall, close to the installation plate (11), of the upper clamping plate (2); a bending plate (22) is fixedly mounted on the side wall of the upper clamping plate (2) opposite to the inserting block (21), one end of the bending plate (22) is fixed on the upper clamping plate (2), and the other end of the bending plate is bent towards one side close to the lower supporting plate (1) and extends to the lower surface of the lower supporting plate (1); go up cardboard (2) and be equipped with spacing subassembly (3) that are used for restricting plug block (21) to break away from inserting groove (111).

2. The quick-release sofa hardware connecting piece according to claim 1, characterized in that: the surface, close to the upper clamping plate (2), of the lower supporting plate (1) is provided with a clamping groove (12) penetrating through the lower supporting plate (1), the surface of the upper clamping plate (2) is provided with a mounting groove (23) penetrating through the upper clamping plate (2), and the mounting groove (23) is arranged opposite to the clamping groove (12); the limiting component (3) comprises a bolt (31) which is arranged in the mounting groove (23) in a sliding mode and a clamping column (32) which is fixed on the bolt (31); the bolt (31) is provided with a pressing piece (33) used for forcing the clamping column (32) to be clamped in the clamping groove (12).

3. The quick-release sofa hardware connecting piece according to claim 2, characterized in that: a mounting rack (24) is erected on the surface, away from the lower supporting plate (1), of the upper clamping plate (2), and the mounting rack (24) is provided with a sliding groove (241) for a bolt (31) to pass through; the pressing piece (33) comprises a pressing plate (331) fixedly installed on the outer peripheral wall of the bolt (31) and a compression spring (332) sleeved on the outer peripheral wall of the bolt (31), the pressing plate (331) is located between the mounting frame (24) and the upper clamping plate (2), the compression spring (332) is installed between the mounting frame (24) and the pressing plate (331), and the compression spring (332) normally forces the clamping column (32) to be clamped in the clamping groove (12).

4. The quick-release sofa hardware connecting piece according to claim 3, characterized in that: the lateral wall of the lower supporting plate (1) far away from the mounting plate (11) is provided with a moving groove (13) communicated with the clamping groove (12), and the free end of the clamping column (32) is provided with a spherical surface (321).

5. The quick-release sofa hardware connecting piece according to claim 4, characterized in that: cutting face (322) have been seted up to joint post (32), cutting face (322) and bottom plate (1) keep away from the lateral wall of mounting panel (11) and set up relatively, the shape of joint groove (12) and the shape looks adaptation of joint post (32).

6. The quick assembly disassembly formula sofa hardware connection spare of claim 4, characterized in that: the lateral wall fixed mounting that butt joint board (331) is close to joint post (32) has catch bar (4), works as joint post (32) joint in joint groove (12), catch bar (4) are located moving slot (13) and local expose in one side that last cardboard (2) were kept away from in moving slot (13), the lateral wall of mounting groove (23) is offered and is used for dodging groove (231) of catch bar (4).

7. The quick-release sofa hardware connecting piece according to claim 4, characterized in that: the moving groove (13) is far away from the notch of the clamping groove (12) and is arranged in a flaring manner.

8. The quick-release sofa hardware connecting piece according to claim 4, characterized in that: the side wall of the moving groove (13) is provided with a guide surface (131).

9. The quick-release sofa hardware connecting piece according to claim 1, characterized in that: limiting plates (14) are fixedly mounted on the upper surface of the lower supporting plate (1) and on the edges of two adjacent sides of the mounting plate (11), and the upper clamping plate (2) is slidably mounted between the two limiting plates (14).

10. The quick assembly disassembly formula sofa hardware connection spare of claim 1, characterized in that: the plug-in blocks (21) and the bending plates (22) are all provided with multiple groups and arranged at intervals along the length direction of the upper clamping plate (2), the mounting plate (11) is provided with a plurality of plug-in grooves (111), and the plug-in grooves (111) are arranged opposite to all the plug-in blocks (21) one to one.