CN220706152U - Hidden connection structure of furniture panel and hidden coupling assembling of furniture panel - Google Patents

Abstract

The utility model discloses a hidden connection structure of furniture boards, which comprises: a sleeve with two open ends; the cover body is connected with an opening at one end of the sleeve and is provided with a cracking part extending along the axial direction; the adapter is movably arranged in the hollow of the sleeve, the end part of the adapter is provided with an adapter, and the adapter extends out from an opening at the other end of the sleeve; the extrusion part is clamped in the sleeve; the two ends of the elastic piece are respectively propped against the adapter piece and the extrusion piece; external force is applied on the adapter to push the extrusion part into the cover body so as to support the cracking part of the cover body, and the end part of the sleeve is expanded and unfolded along the radial direction. The utility model also discloses a hidden connecting component of the furniture board. After the adapter is acted by external force, the extrusion piece can be pushed to enter the cover body, so that the outer diameter of the cover body is increased, the end part of the sleeve is expanded and unfolded along the radial direction, the end part of the sleeve can be firmly connected in the opening of the plate, and the installation process is simple and efficient; the assembly process is simple; the processing cost is reduced.

Description

Hidden connection structure of furniture panel and hidden coupling assembling of furniture panel

Technical Field

The utility model belongs to the technical field of furniture splicing, and particularly relates to a hidden connecting structure of furniture boards and a hidden connecting assembly of furniture boards.

Background

The panel furniture is split into a plurality of panel bodies before assembly, and is spliced through the connecting component after being transported to a destination. In order to meet the attractive demand, a fully hidden connecting structure appears on the market, for example, chinese patent CN217421740U discloses a fully hidden connecting structure of a furniture board body, wherein a connecting piece comprises an expansion sleeve, a guide rod, a telescopic structure and a top block, one end of the guide rod is limited in the expansion sleeve, and the other end of the guide rod is connected with a positioning connector which is used for being matched and connected with an embedded part; the expansion sleeve is provided with an expansion part at one end, the ejector block comprises a tail connecting section which is matched and connected with the expansion part, the diameter of the tail connecting section gradually reduces from the far end to the near end relative to the expansion part, and when the expansion sleeve is subjected to axial pressure, the tail connecting section moves along the axial direction and expands the expansion part along the radial direction. However, as the tail connecting section of the top block is in a flaring cone shape, the top block can prop open the end part of the expansion sleeve, namely, when the top block does not pass through the expansion sleeve yet, one end of the connecting piece has larger outer diameter, and certain difficulty exists when the connecting piece is assembled and connected with the laminate A; moreover, the inner ring saw teeth, the upper saw teeth and the lower saw teeth are required to be arranged, and the direction of the saw teeth is also required, so that the processing difficulty is increased.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides a hidden connecting structure of a furniture board and a hidden connecting component of the furniture board, which are firmly connected with the board, are convenient to install and reduce the processing cost.

The technical scheme adopted for solving the technical problems is as follows: a hidden connection structure for furniture boards, comprising:

a sleeve with two open ends;

the cover body is connected with an opening at one end of the sleeve and is provided with a cracking part extending along the axial direction;

the adapter is movably arranged in the hollow of the sleeve, the end part of the adapter is provided with an adapter, and the adapter extends out from an opening at the other end of the sleeve;

the extrusion part is clamped in the sleeve;

the two ends of the elastic piece are respectively propped against the adapter piece and the extrusion piece;

and applying external force on the adapter to push the extrusion part into the cover body so as to support the cracking part of the cover body, and expanding the end part of the sleeve in the radial direction.

After the adapter is acted by external force, the extrusion piece can be pushed to enter the cover body, so that the cover body with the cracking part is unfolded, the outer diameter of the cover body is increased, the end part of the sleeve is expanded and unfolded along the radial direction, the end part of the sleeve can be firmly connected in the opening of the plate, and the installation process is simple and efficient; when the assembly is carried out, the adapter, the elastic piece, the extrusion piece and the cover body are assembled into the sleeve in sequence, and the whole assembly process is simple; the sleeve does not need to be provided with saw teeth or elastic sheets and other structures, so that the processing cost is reduced.

Further, the sleeve is connected with one end of the cover body to form a gap part. The sleeve is provided with the gap part, when the cover body is propped up by the extrusion part through the cracking part, the end part of the sleeve can be propped up by the gap part, and the connecting structure is expanded and stretched in the radial direction to be wider, so that the connection between the connecting structure and the plate open hole is firmer.

Further, the cover body is detachably connected to the sleeve, and the cracking part and the gap part are opposite to each other. The cover body and the sleeve are convenient to assemble, the cracking part and the gap part are opposite to each other, so that the end part of the sleeve can be conveniently opened in the radial direction, the extrusion part can be pushed into the cover body without applying too large external force, and the operation is labor-saving.

Further, the extrusion is a metal sphere; the sleeve and the cover body are made of plastic materials. The extrusion part is a metal sphere, so that the extrusion part is convenient to enter the cavity of the cover body, and the cover body and the sleeve can be expanded due to enough structural strength; the sleeve and the cover body are made of plastic materials, so that the sleeve and the cover body can be conveniently extruded and expanded by the extrusion piece.

Further, when the extrusion piece is clamped in the sleeve, the extrusion piece is abutted against the end part of the cover body; the switching piece tip forms the trigger section, the elastic component cover is located the trigger section periphery, and when the extrusion piece offsets with the lid tip, has the idle running between trigger section and the extrusion piece. The extrusion part only abuts against the end part of the cover body in the initial state and does not enter the cover body, so that the outer diameters of the cover body and the sleeve are not expanded, and the connecting structure is convenient to plug into the opening of the plate; the setting of trigger section is convenient for the assembly of elastic component, and the setting of idle running makes the elastic component have sufficient flexible elasticity can push the extrusion piece into the main part cavity of lid in, also guarantees at the assembly in-process, and trigger section can not touch the extrusion piece easily.

Further, the sleeve is provided with an anti-falling convex rib at least on the outer wall of the end part connected with the cover body. The anti-falling convex ribs can be meshed with the inner wall of the plate openings, so that the firmness of connection between the sleeve and the plate is ensured.

Further, the cover body comprises a main body part with a cavity and flanges which can be abutted against the end face of the sleeve, two ends of the main body part are open, the inner diameter of the main body part is smaller than the outer diameter of the extrusion piece, and the cracking part penetrates through the whole axial direction of the cover body. The flange prevents the whole cover body from sinking into the sleeve and being unable to be pulled out; both ends of the main body part are open, so that the formation of the cracking part is facilitated; the cracking part penetrates through the cover body, so that the radial expansion amplitude of the cover body can be increased, and the connection structure is more firmly connected with the plate.

Further, the reduced inner diameter of the sleeve end forms a stop to prevent the adaptor from being disengaged from the sleeve end.

The utility model also discloses a hidden connecting component for the furniture board, which comprises the connecting structure and the embedded component, wherein the adapter of the adapter can be matched and connected with the limit clamping groove of the embedded component.

Further, the pre-buried subassembly includes:

the first end of the expansion piece is provided with the limiting clamping groove, the second end of the expansion piece is provided with a slit, the slit is axially communicated with the limiting clamping groove, and the slit divides a part of the expansion piece into a first part body and a second part body;

and the second extrusion piece has an outer diameter larger than the width of the slit, and can enter the slit from the limit clamping groove so as to open the first part body and the second part body outwards.

The expansion piece is provided with the slit, the second extrusion piece can be plugged into the slit by external force, so that the width of the slit is increased, and then the first part body and the second part body at two sides of the slit can be outwards spread, namely the outer diameter of the part of the expansion piece with the slit is increased, so that the expansion piece is more firmly connected with the plate open hole; the whole structure is simple, the processing is convenient, the processing cost is low, and the installation is convenient.

The beneficial effects of the utility model are as follows: after the adapter is acted by external force, the extrusion piece can be pushed to enter the cover body, so that the outer diameter of the cover body is increased, the end part of the sleeve is expanded and unfolded along the radial direction, the end part of the sleeve can be firmly connected in the opening of the plate, and the installation process is simple and efficient; when the assembly is carried out, the adapter, the elastic piece, the extrusion piece and the cover body are assembled into the sleeve in sequence, and the whole assembly process is simple; the sleeve does not need to be provided with structures such as saw teeth or elastic sheets, and the like, so that the processing cost is reduced; the cooperation of connection structure and pre-buried subassembly for the coupling assembling can be with panel more firm assembly connection.

Drawings

Fig. 1 is a schematic perspective view of a connection structure according to the present utility model.

Fig. 2 is a schematic perspective view of a connection structure according to the present utility model.

Fig. 3 is a cross-sectional view of a connection structure provided by the present utility model.

Fig. 4 is a schematic view of the cooperation structure of the extrusion and the cover provided by the utility model.

Fig. 5 is an exploded view of the connection structure according to the present utility model.

Fig. 6 is a schematic perspective view of a cover according to the present utility model.

Fig. 7 is a schematic structural diagram of an embedded component provided by the utility model.

Fig. 8 is a schematic structural diagram of an expansion member of the embedded assembly provided by the utility model.

Fig. 9 is a schematic cross-sectional structure of the embedded assembly provided by the utility model.

Fig. 10 is a schematic structural diagram of a connection assembly according to the present utility model.

Fig. 11 is a schematic structural diagram of another connection assembly according to the present utility model.

The expansion piece comprises a 1-expansion piece, a 10-anti-falling part, a 11-first end, a 12-second end, a 13-limit clamping groove, a 14-slotting, a 15-part body I, a 16-part body II, a 17-reaming, an 18-anti-falling rib, a 2-second extrusion piece, a 13-sleeve, a 31-slot part, a 32-anti-falling rib, a 33-blocking part, a 4-cover body, a 41-cracking part, a 42-main body part, a 421-guiding surface, a 43-flange, a 5-adapter, a 51-adapter, a 52-triggering section, a 6-extrusion piece and a 7-elastic piece.

Detailed Description

In order to make the present utility model better understood by those skilled in the art, the following description of the technical solutions of the present utility model will be made in detail, but not all embodiments of the present utility model are apparent to some embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

As shown in fig. 1 to 5, a hidden connection structure for furniture boards comprises a sleeve 3 with two open ends and hollow inside, a cover body 4 connected with one open end of the sleeve 3, an adapter 5, an extrusion piece 6 clamped inside the sleeve 3, and an elastic piece 7.

The sleeve 3 has a cylindrical structure, and at least the outer wall of the end part connected with the cover body 4 is provided with an anti-falling convex rib 32, and the rest part can have a smooth structure, as shown in fig. 1. Of course, the anti-falling ribs 32 may be provided on the entire outer wall of the sleeve 3, and the present utility model is not limited thereto. The sleeve 3 is connected to the cover 4 with one end opened to form a slit portion 31, and the slit portion 31 extends in the axial direction of the sleeve 3.

The adaptor 5 is movably arranged in the hollow interior of the sleeve 3, and the movable arrangement means that the adaptor 5 can move along the axial direction of the sleeve 3, and the adaptor 5 can also rotate circumferentially relative to the sleeve 3. The adapter 5 has an adapter 51 at its end, and the adapter 51 protrudes from the opening at the other end of the sleeve 3, more specifically, the adapter 51 has a portion with an outer diameter smaller than that of the main body portion of the adapter 5. In order to prevent the adapter 5 from being separated from the lower end of the sleeve 3, the inner diameter of the end of the sleeve 3 is reduced to form a blocking portion 33, so that the blocking portion 33 abuts against the main body portion of the adapter 5, and the adapter 5 is prevented from being separated from the sleeve 3 from the lower end of the sleeve 3.

The extrusion 6 is a sphere, in particular a metal sphere in this embodiment, and is arranged in such a way that, in relation to the sleeve 3 and the cover 4, it is made of a plastic material, its structural strength is higher, so that it is convenient to radially spread the sleeve 3 and the cover 4.

The lid body 4 is formed with a split portion 41 extending in the axial direction, and as shown in fig. 6, in this embodiment, the split portion 41 penetrates the entire axial length of the lid body 4. The cover 4 includes a main body 42 with a cavity and a flange 43 capable of abutting against the end face of the sleeve 3, both ends of the main body 42 are opened, the formation of the cracking part 41 is facilitated, and the flange 43 prevents the cover 4 from sinking into the sleeve 3 as a whole and being unable to be pulled out. The cover 4 is detachably connected to the end of the sleeve 3, and the split portion 41 of the cover 4 and the slit portion 31 of the sleeve 3 are disposed opposite to each other, although in other embodiments, they may not be opposite to each other.

As shown in fig. 4, the inner diameter of the body portion 42 is smaller than the outer diameter of the pressing member 6 so that a portion of the pressing member 6 can extend into the body portion 42, but the pressing member 6 does not expand radially the cover 4 and the sleeve 3 before no external force is applied to push the pressing member 6 into the cavity of the body portion 42. That is, when the pressing member 6 is engaged with the inside of the sleeve 3, it abuts against the end of the cover 4. In order to facilitate the entry of the pressing member 6 into the cavity of the main body portion 42, an inclined guide surface 421 may be formed on the inner wall of the end face of the cover body 4 so that the pressing member 6 can smoothly enter the cavity along the inclined guide surface 421.

The both ends of elastic member 7 respectively with adaptor 5 and extrusion 6 butt, in order to be convenient for the assembly of elastic member 7, the upper end of adaptor 5 forms the triggering section 52 that the external diameter reduces, and elastic member 7 cover is established in triggering section 52 periphery. Also, as shown in fig. 3, when the pressing member 6 abuts against the end of the cover 4, in other words, before an external force is applied to the adapter 5 in the axial direction, there is a free stroke between the trigger section 52 and the pressing member 6, i.e., a distance shown as H in fig. 3, so that the elastic member 7 has a sufficient elastic expansion force to push the pressing member 6 into the cavity of the main body 12 of the cover 4, and also ensures that the trigger section 52 does not easily touch the pressing member 6 during the assembly.

During assembly, one end of the adapter 5 with the adapter 51 extends into the sleeve 3 from top to bottom, the elastic piece 7 is sleeved outside the triggering section 52 of the adapter 5, the extrusion piece 6 is plugged into the sleeve 3 and abuts against the elastic piece 7, and finally the cover body 4 is covered on the top end of the sleeve 3, so that the cover body 1 can be rotated to enable the cracking part 41 of the cover body to be opposite to the gap part 31 of the sleeve 3.

During assembly, one end of the sleeve 3 with the cover body 4 stretches into the opening, external force is applied to the adapter 5, and particularly axial external force is applied to the adapter 51, where the adapter 5 stretches out of the sleeve 3, so that the adapter 5 compresses the elastic piece 7 inwards, meanwhile, the trigger section 52 of the adapter 5 contacts the extrusion 6, so that the extrusion 6 is pushed into the cavity of the main body 42 of the cover body 4, the outer diameter of the extrusion 6 is larger than the inner diameter of the main body 42, and the cracking part 41 and the gap part 31 exist, furthermore, the extrusion 6 is made of a hard metal material, the cover body 4 and the sleeve 3 are made of plastic materials such as plastics, the extrusion 6 can prop open the cracking part 41 of the cover body 4, and then prop open the gap part 31, so that the end of the sleeve 3 expands radially, and the connecting structure is firmly connected in the opening of the plate.

The utility model provides a hidden coupling assembling of furniture panel, includes foretell connection structure and pre-buried subassembly, and the adapter 51 of adaptor 5 can be connected with the spacing draw-in groove 13 cooperation of pre-buried subassembly.

As shown in fig. 7-10, the embedded component comprises an expansion member 1 and a second extrusion member 2, the first end 11 of the expansion member 1 is provided with the above-mentioned limiting slot 13, the second end 12 is provided with a slit 14, and in this embodiment, the expansion member 1 has a cylindrical structure, and the first end 11 and the second end 12 are opposite.

The slit 14 is axially communicated with the limit clamping groove 13, and the slit 14 divides the part of the expansion piece 1 into a first part 15 and a second part 16. In the present embodiment, the slit 14 extends along the radial direction of the second end 12 of the expansion member 1, and both ends of the slit 14 extend through the entire radial direction of the expansion member 1.

The outer diameter of the second extrusion 2 is larger than the width of the slit 14, and the second extrusion can enter the slit 14 from the limit clamping groove 13, so that the first part 15 and the second part 16 are outwards spread, namely the outer diameter of the part of the expansion piece 1 with the slit 14 is increased.

In this embodiment, the second extrusion 2 is a sphere, which may be a metal sphere specifically, and the expansion member 1 is made of a plastic material, such as plastic, but may also be made of a material with elasticity, such as silica gel, without limitation.

In order to facilitate the stable clamping of the second extrusion 2 and also in order to facilitate the positioning of the second extrusion 2, a counterbore 17 for receiving the second extrusion 2 is provided at the slit 14, the counterbore 17 having an inner diameter smaller than the outer diameter of the second extrusion 2, but the counterbore 17 having an inner diameter larger than the width of the slit 14. In this embodiment, the counterbore 17 is located in the middle of the slit 14, i.e., in the center of the expansion member 1, so that the second extrusion 2 can uniformly expand the first and second members 15 and 16 after entering the counterbore 17.

In order to increase the connection firmness of the expansion element 1 and the carrier, the outer wall of the expansion element 1 is provided with anti-falling ribs 18, which are opposite to the installation direction of the expansion element 1, i.e. the anti-falling ribs 18 can prevent the expansion element 1 from falling out of the carrier.

As shown in fig. 9 and 10, the first end 11 of the expansion element 1 is provided with an inclined chute 19 and an anti-falling portion 10, the inclined chute 19 is communicated with the limit clamping groove 13, and the end 51 of the positioning connector 5 can be matched with the anti-falling portion 10, so that the positioning connector 5 is prevented from falling out of the limit clamping groove 13.

During assembly, holes are formed in the plate, the second end 12 of the expansion piece 1 is plugged into the holes of the plate, then the second extrusion piece 2 is plugged into the reaming 17 of the slotting 14 by applying external force through the limiting clamping groove 13, and the second extrusion piece 2 is made of hard metal materials because the outer diameter of the second extrusion piece 2 is larger than the inner diameter of the reaming 17, the expansion piece 1 is made of plastic materials such as plastics, the second extrusion piece 2 can stretch out the first part 15 and the second part 16 of the expansion piece 1, so that the second end 12 of the expansion piece 1 expands in the radial direction, and the embedded assembly is firmly connected in the holes of the plate.

It should be noted that when the expansion member 1 is inserted into the side of the plate in the thickness direction, the slit 14 extends along the thickness direction of the plate, i.e., the extending direction of the slit 14 is perpendicular to the length direction of the plate, so as to avoid the plate from being split when the first and second members 15 and 16 are outwardly opened.

Of course, as shown in fig. 11, the embedded component may have other structures in the prior art, which is not limited in particular.

The foregoing detailed description is provided to illustrate the present utility model and not to limit the utility model, and any modifications and changes made to the present utility model within the spirit of the present utility model and the scope of the appended claims fall within the scope of the present utility model.

Claims (10)

1. A hidden connection structure of furniture boards, comprising:

a sleeve (3) with two open ends;

a cover body (4) which is connected to an opening at one end of the sleeve (3) and is formed with a split part (41) extending in the axial direction;

the adaptor (5) is movably arranged in the hollow interior of the sleeve (3), the end part of the adaptor is provided with an adaptor (51), and the adaptor (51) extends out from an opening at the other end of the sleeve (3);

the extrusion piece (6) is clamped in the sleeve (3);

an elastic piece (7), two ends of which are respectively propped against the adapter piece (5) and the extrusion piece (6);

external force is applied on the adapter (5), the extrusion piece (6) is pushed into the cover body (4) to support the cracking part (41) of the cover body (4), and the end part of the sleeve (3) expands and opens along the radial direction.

2. The furniture plate hiding connection structure according to claim 1, wherein: the sleeve (3) is connected with one end opening of the cover body (4) to form a gap part (31).

3. The furniture plate hiding connection structure according to claim 2, wherein: the cover body (4) is detachably connected to the sleeve (3), and the cracking part (41) and the gap part (31) are arranged opposite to each other.

4. The furniture plate hiding connection structure according to claim 1, wherein: the extrusion piece (6) is a metal sphere; the sleeve (3) and the cover body (4) are made of plastic materials.

5. The furniture plate hiding connection structure according to claim 4, wherein: when the extrusion piece (6) is clamped in the sleeve (3), the extrusion piece is abutted against the end part of the cover body (4); the end part of the adapter piece (5) forms a triggering section (52), the elastic piece (7) is sleeved on the periphery of the triggering section (52), and when the extrusion piece (6) abuts against the end part of the cover body (4), an idle stroke is formed between the triggering section (52) and the extrusion piece (6).

6. The furniture plate hiding connection structure according to claim 1, wherein: the sleeve (3) is provided with an anti-falling convex rib (32) at least on the outer wall of the end part connected with the cover body (4).

7. The furniture plate hiding connection structure according to claim 1, wherein: the cover body (4) comprises a main body part (42) with a cavity and flanges (43) capable of abutting against the end face of the sleeve (3), two ends of the main body part (42) are open, the inner diameter of the main body part (42) is smaller than the outer diameter of the extrusion piece (6), and the cracking part (41) penetrates through the whole axial direction of the cover body (4).

8. The furniture plate hiding connection structure according to claim 1, wherein: the inner diameter of the end part of the sleeve (3) is reduced to form a blocking part (33) so as to prevent the adapter (5) from being separated from the end part of the sleeve (3).

9. A hidden connecting assembly for furniture boards, which is characterized by comprising the connecting structure as claimed in any one of claims 1-8 and an embedded assembly, wherein the adapter (51) of the adapter (5) can be connected with a limit clamping groove (13) of the embedded assembly in a matching way.

10. The furniture board hidden connection assembly of claim 9, wherein the pre-buried assembly comprises:

the expansion piece (1) is provided with the limit clamping groove (13) at the first end (11), the second end (12) is provided with a slit (14), the slit (14) is axially communicated with the limit clamping groove (13), and the slit (14) divides the part of the expansion piece (1) into a first part body (15) and a second part body (16);

the second extrusion (2) has an outer diameter larger than the width of the slit (14) and can enter the slit (14) from the limit clamping groove (13) so as to outwards prop the first part body (15) and the second part body (16).