CN217582734U - Invisible connecting piece for furniture board - Google Patents

Abstract

The utility model discloses a stealthy connecting piece of furniture board, include: the shell, extensible member, screens piece and connecting piece. Wherein: the top of the inner cavity of the shell is provided with a groove, two ends of the telescopic piece are fixedly connected with the groove and the clamping piece respectively, and the lower surface of the clamping piece is an arc-shaped surface protruding downwards. Under the natural flexible state of extensible member, the lower part of screens piece stretches out to in the inner chamber, and this screens piece can pass in and out the recess along with the flexible of extensible member. The connecting piece comprises a rod body and an expansion head connected with one end of the rod body, and the other end of the rod body is fixed on the first plate body. The bottom surface of the shell is provided with a channel communicated with the inner cavity, and one end of the channel is provided with an inlet for the expansion head to enter and exit. The expansion head enters the inner cavity from the inlet and then moves to the other end of the channel, so that the expansion head is clamped in the inner cavity by the clamping piece. The utility model discloses a furniture board stealthy connecting piece can also realize convenient and reliable installation, dismantlement when guaranteeing beautifully.

Description

Invisible connecting piece for furniture board

Technical Field

The utility model relates to a building engineering device field especially relates to a furniture board stealthy connecting piece.

Background

The information disclosed in the background of the invention is only for enhancement of understanding of the general background of the invention and is not necessarily to be construed as an admission or any form of suggestion that this information constitutes prior art that is already known to a person of ordinary skill in the art.

With the continuous improvement of living standard of people, the demand on furniture is no longer only practical, and the requirement on the beauty of the furniture is also continuously improved. At present, the splicing type furniture is mainly spliced and fixed by adopting a three-in-one connecting piece; the structure of the connecting piece has the advantages of convenient assembly, firm installation and the like; but the defect that a small number of screws are exposed on the surface of the furniture still exists, and certain influence is caused on the overall aesthetic degree of the furniture. And the disassembly and assembly are troublesome. By adopting the tenon-and-mortise structure, although the problem that the connecting piece is exposed on the surface of the furniture is well solved, the splicing structure has high requirement on the machining precision, and the connecting component is complex in assembling process and is not suitable for mechanical production. The prior art has appeared the structure of many furniture stealth connecting pieces, and it is fine to have satisfied pleasing to the eye requirement, but the ubiquitous connection installation is complicated, can have the connecting piece moreover and furniture be connected not closely enough, the condition that appears pine easily or shake.

SUMMERY OF THE UTILITY MODEL

To foretell problem, the utility model provides a stealthy connecting piece of furniture board, it is when guaranteeing pleasing to the eye, can also realize convenient and reliable installation, dismantlement. In order to achieve the above object, the technical solution of the present invention is as follows.

A furniture board concealed connector comprising: the casing, extensible member, screens piece and connecting piece. Wherein: the top of the inner cavity of the shell is provided with a groove, two ends of the telescopic piece are fixedly connected with the groove and the clamping piece respectively, and the lower surface of the clamping piece is an arc-shaped surface protruding downwards. And under the natural telescopic state of the telescopic piece, the lower part of the clamping piece extends into the inner cavity, and the clamping piece can enter and exit the groove along with the telescopic piece. The connecting piece comprises a rod body and an expansion head connected with one end of the rod body, and the other end of the rod body is fixed on the first plate body. The bottom surface of the shell is provided with a channel communicated with the inner cavity, the width of the channel is larger than the rod body and smaller than the expansion head so as to facilitate the rod body to pass through and constrain the expansion head in the inner cavity, and one end of the channel is provided with an inlet for the expansion head to enter and exit. The expansion head enters the inner cavity from the inlet and then moves to the other end of the channel, so that the expansion head is clamped in the inner cavity by the clamping piece.

Furthermore, the shell is fixed in the connecting surface of the second plate body, and the channel on the bottom surface of the shell is located at the connecting surface, so that the first plate body and the second plate body are detachably connected through the connection between the connecting piece and the shell.

Furthermore, the telescopic part comprises a spring and the like, one end of the telescopic part is fixed in the groove, and the other end of the telescopic part is fixedly connected with the clamping part.

Further, the lateral wall of screens piece is connected with the inner wall contact of recess to when will expand the head chucking in the inner chamber by the screens piece, prevent to rock.

Furthermore, the expansion head is of a spherical structure, and inner cavities on two sides of the clamping piece are of a structure matched with the spherical structure.

Further, the body of rod is the threaded rod, and its threaded connection is in on the first plate body.

Further, the first plate body is provided with a pre-buried threaded sleeve, the inner wall and the outer wall of the threaded sleeve are both provided with threads, and the rod body is in threaded connection with the inner wall of the threaded sleeve.

Furthermore, the side wall of the lower part of the threaded sleeve is provided with a strip-shaped groove, and the rod body is in interference fit with the threaded sleeve.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses the stealthy connecting piece of furniture board of example can also realize convenient and reliable installation, dismantlement when guaranteeing beautifully. This is because this stealthy connecting piece of panel has set up the automatic telescopic machanism that extensible member and screens piece are constituteed in the inner chamber of casing, works as the upset head on the connecting piece moves to when the other end from the one end of inner chamber, during the screens piece receives the extrusion entering recess of expanding the head to make the head of expanding pass through smoothly, through the back the screens piece resets, and will the head of expanding block tightly in the inner chamber, thereby conveniently accomplish first plate body and second plate body be connected dismantled, make the connecting piece wholly hide simultaneously.

Drawings

The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.

FIG. 1 is a sectional view of the invisible joint for furniture boards in the following embodiment.

Fig. 2 is a plan view of the housing in the following embodiment.

Fig. 3 is a front view of the connecting member in the following embodiment.

Fig. 4 is a front view of a threaded bushing in the following embodiment.

The labels in the figures represent: the device comprises a shell 1, a telescopic part 2, a clamping part 3, a connecting part 4, a groove 5, a first plate 6, a second plate 7, a threaded sleeve 8, a strip-shaped groove 9, an inner cavity 101, a channel 102, an inlet 103, a rod body 401 and an expansion head 402.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

For convenience of description, the words "upper", "lower", "left" and "right" in the present application, if any, merely indicate that the device or element referred to in the present application is constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention, since they are merely intended to be oriented in the upper, lower, left and right directions of the drawings themselves, and not to limit the structure, but merely to facilitate the description of the invention and to simplify the description. The technical solution of the present invention will be further explained with reference to the drawings and the detailed description.

Referring to fig. 1 to 3, there is illustrated a hidden connector for furniture boards, comprising: the telescopic part comprises a shell 1, a telescopic part 2, a clamping part 3 and a connecting part 4. Wherein:

referring to fig. 1, the housing 1 has an inner cavity 101, and a groove 5 is formed at the top of the inner cavity 101. The telescopic part 2 is a metal spring, the upper end of the telescopic part is fixed in the groove 5, the lower end of the telescopic part is fixedly connected with the clamping part 3, and the lower surface of the clamping part 3 is an arc-shaped surface protruding downwards. Under the natural telescopic state of the telescopic part 2, the lower part of the clamping part 3 extends into the inner cavity 101, and the clamping part 3 can enter and exit the groove 5 along with the telescopic part 2. The telescopic part 2 and the blocking part 3 form an automatic telescopic mechanism, and the arc surfaces at the two ends of the blocking part 3 help to avoid the expansion heads 402 on the connecting part 4 from being clamped when being extruded.

The connecting member 4 includes a rod 401 and a spherical expanding head 402 fixed at the upper end of the cylindrical rod 401, and the lower end of the rod 401 is fixed on the first plate 6.

Referring to fig. 2, the bottom surface of the housing 1 has a channel 102 communicating with the inner cavity 101, the width of the channel 102 is greater than the diameter of the rod 401 and smaller than the diameter of the enlarged head 402, so that the rod 401 can pass through to restrain the enlarged head 402 in the inner cavity 101, and the right end of the channel 102 has an inlet 103 for the enlarged head 402 to enter and exit. Because the expansion head 402 is of a spherical structure, the inner cavities 101 on two sides of the clamping part 3 are of a structure matched with the spherical structure, so that the expansion head 402 can be clamped in the inner cavity 101 on the left side of the clamping part 3 more stably, and the swinging is prevented.

Before connecting, will casing 1 is fixed in the connection face of second plate body 7, just passageway on the casing 1 bottom surface is located this connection face department, enlarged head 402 moves backward along passageway 102 and moves to its left end in getting into inner chamber 101 from entry 103, and in this process, screens piece 3 receives the extrusion entering recess 5 of enlarged head 402 to make enlarged head 402 pass through smoothly, enlarged head 402 passes through the back screens piece 3 resets, and will enlarged head 402 chucking is in inner chamber 101, thereby conveniently accomplishes dismantling of first plate body 6 and second plate body 7 and is connected, makes the connecting piece whole hide simultaneously.

In another embodiment, in the invisible connecting piece for furniture boards exemplified by the above embodiments, the side wall of the locking member 3 and the inner wall surface of the groove 5 are in a contact connection form, so that when the expanded end 402 is clamped in the inner cavity 101 by the locking member 3, the connection is prevented from shaking and instability due to an excessively large gap between the locking member 3 and the inner wall surface of the groove 5.

Referring to fig. 3, in another embodiment, in the invisible connecting piece for furniture boards of the above embodiment, the rod 401 is a threaded rod, and the threaded rod is screwed on the first board body 6.

Referring to fig. 1, in another embodiment, in the invisible connecting piece for furniture boards of the embodiment, the first board body 6 is provided with a pre-embedded threaded sleeve 8, the inner wall and the outer wall of the threaded sleeve 8 are both provided with threads, and the rod body 401 is in threaded connection with the inner wall of the threaded sleeve 8.

Referring to fig. 1 and 4, in another embodiment, the lower side wall of the threaded sleeve 8 has a strip-shaped groove 9 (i.e. an expansion screw sleeve), and the rod 401 is in interference fit with the threaded sleeve 8, so that the lower part of the threaded sleeve is spread by the rod 401, and the threaded sleeve 8 and the first plate 6 are connected more tightly.

Finally, it should be understood that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without inventive work are still within the scope of the present invention.

Claims (8)

1. A hidden furniture board connector, comprising:

the top of an inner cavity of the shell is provided with a groove;

the automatic telescopic mechanism comprises a telescopic piece and a clamping piece, wherein the telescopic piece is positioned in the groove, two ends of the telescopic piece are respectively and fixedly connected with the groove and the clamping piece, the lower surface of the clamping piece is a downward convex arc-shaped surface, the lower part of the clamping piece extends into the inner cavity in a natural telescopic state of the telescopic piece, and the clamping piece can enter and exit the groove along with the telescopic piece;

the connecting piece comprises a rod body and an expansion head connected with one end of the rod body, and the other end of the rod body is fixed on the first plate body; and

the bottom surface of the shell is provided with a channel communicated with the inner cavity, and the width of the channel is larger than the rod body and smaller than the expansion head; one end of the channel is provided with an inlet for the expansion head to enter and exit; the expansion head enters the inner cavity from the inlet and then moves to the other end of the channel, and the expansion head is clamped in the inner cavity by the clamping piece.

2. The invisible connector of furniture board according to claim 1, wherein the housing is fixed in a connecting surface of the second board body, and the channel on the bottom surface of the housing is located at the connecting surface, so that the first board body is detachably connected with the second board body through the connection between the connector and the housing.

3. The invisible connector of furniture board as claimed in claim 1, wherein the retractable member is a spring, one end of which is fixed in the groove and the other end of which is fixedly connected with the retaining member.

4. The invisible connector of furniture board as claimed in claim 1, wherein the side wall of the locking member is in contact connection with the inner wall of the groove.

5. The invisible connector of furniture board according to claim 1, wherein said enlarged head is a spherical structure, and the inner cavities of both sides of said locking member are configured to match said spherical structure.

6. The invisible connector of furniture board according to any one of claims 1 to 5, wherein said rod body is a threaded rod, which is screwed to said first plate body.

7. The invisible connector for furniture boards as claimed in any one of claims 1 to 5, wherein the first board body is provided with a pre-embedded threaded sleeve, the inner and outer walls of the threaded sleeve are provided with threads, and the rod body is in threaded connection with the inner wall of the threaded sleeve.

8. The invisible connector of furniture board as claimed in claim 7, wherein the lower side wall of the threaded sleeve has a strip groove, and the rod body and the threaded sleeve are in interference fit.

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