Hidden furniture plate connecting fastener

Abstract

The utility model relates to the technical field of furniture plate connecting pieces, and discloses a hidden furniture plate connecting fastener which comprises an upper plate and a lower plate, a clamping mechanism is arranged at the bottom of the upper plate, and the clamping mechanism comprises a fixed block, a sliding groove, a sleeve rod, a telescopic rod, a spring, a movable plate, a movable rod and a limiting block. When plates need to be connected in a hidden mode, a threaded column is in threaded connection with a threaded hole in an upper plate through threads, then a fixing block is fixed to the top of a lower plate through two screws, a limiting block and a movable rod are inserted through an expansion hole in the left end of a sliding groove, the upper plate and the lower plate are tightly combined, and a sleeve rod slides rightwards to the bottom along the sliding groove; the movable rod compresses the spring, the movable rod slides rightwards to be matched with the arc-shaped groove, then the compression spring clamps the movable rod and the arc-shaped groove through elastic force, the clamping mechanism can stably limit after plates are connected, clamping is conducted through the elastic force of the spring, and the plates are prevented from sliding out of the sliding groove after being collided.

Description

Technical Field

[0001] The utility model relates to the technical field of furniture plate connecting pieces, in particular to a hidden furniture plate connecting fastener. Background Art

[0002] Furniture refers to the category of appliances and facilities that are indispensable for humans to maintain normal life, engage in production practice and carry out social activities. Furniture has also been continuously developing and innovating with the pace of the times. Now people's demand for furniture is no longer limited to the function of the furniture itself, but more attention is paid to the improvement of life experience by the aesthetics of furniture. Panel connectors are a kind of components used for panel connection. Most furniture is made of panels, and the panels are connected to form furniture through hardware. Existing furniture panel connecting fasteners usually use hidden connecting fasteners. Hidden connecting fasteners hide the screw holes and screws while also having a stabilizing effect. It is not only beneficial to the aesthetics of the furniture, but also can increase the stability of the panel connection.

[0003] After searching, a Chinese utility model with publication number CN213628324U is found to be an invisible connector, comprising a male component and a female component embedded in a first component to be assembled; the female component comprises a connector and a shell having an installation cavity inside, the connector is installed on one side of the shell; the other side of the shell is provided with a limit groove capable of limiting the movement of the male component along the X-axis direction and the Z-axis direction and two slide grooves for enabling the limit body of the male component to be embedded in the installation cavity along the X-axis direction; the main body of the male component is used to be embedded in the second component to be assembled; the two slide grooves are symmetrical The utility model is simple in structure and easy to assemble, but the limit groove and the limit body can connect the whole panel, and the limit body slides into the limit groove through the slide groove. When the panel is hit in daily life, it may slide from the limit groove into the slide groove, and then slide out of the slide groove, causing the panel to be disconnected and not stable after limiting. Therefore, a hidden furniture panel connection fastener is proposed, which can limit the panel stably after the panel is connected, and is clamped by spring elastic force to avoid the panel sliding out of the slide groove after collision, resulting in unstable panel connection. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a concealed furniture panel connecting fastener, which has the advantages of being able to be stable and easy to disassemble by clamping the panels in a limited position through a clamping block after the panels are connected, and solves the problem that although the limiting groove and the limiting body in the Chinese utility model with publication number CN213628324U can connect the entire panel, the limiting body slides into the limiting groove through the sliding groove. When the panel is hit in daily life, it may slide from the limiting groove into the sliding groove, and then slide out of the sliding groove, causing the panel to be disconnected and the furniture to fall apart, and the problem of being unstable after limiting.

[0005] In order to achieve the above-mentioned purpose of being able to limit the position and stabilize the plates after they are connected, and to clamp them by spring elastic force to prevent the plates from sliding out of the slide groove after collision, the utility model provides the following technical solutions: a hidden furniture plate connecting fastener, comprising an upper plate and a lower plate, wherein a clamping mechanism is provided at the bottom of the upper plate;

[0006] The clamping mechanism includes a fixed block, a sliding groove, a sleeve rod, a telescopic rod, a spring, a movable plate, a movable rod and a limit block. A fixed block is arranged on the top of the lower plate, a sliding groove is provided on the outside of the fixed block, a sleeve rod is arranged on the bottom of the upper plate, a telescopic rod is fixedly installed inside the sleeve rod, a spring is arranged inside the sleeve rod, a movable plate is fixedly installed on the bottom of the telescopic rod, a movable rod is fixedly installed on the bottom of the movable plate, and a limit block is fixedly installed on the outside of the movable rod.

[0007] Furthermore, an expansion hole is opened at the left end of the sliding groove, and the expansion hole can be freely passed through by the limiting block. After entering the expansion hole through the limiting block, it is clamped inside the fixing block, so that the upper plate and the lower plate can be clamped.

[0008] Furthermore, the movable rod is sleeved with the sleeve rod, so that the movable rod can move inside the sleeve rod.

[0009] Furthermore, a threaded rod is fixedly installed on the top of the sleeve rod, and the sleeve rod is threadedly connected to the upper plate through the threaded rod.

[0010] Furthermore, the inner bottom wall of the fixed block is provided with an inclined surface, and the inner bottom wall of the fixed block is provided with an arc groove adapted to the movable rod. The inclined surface can make the movable rod slide to the right while using the spring force to clamp the movable rod and the fixed block.

[0011] Furthermore, there are two clamping mechanisms, which are evenly distributed between the upper plate and the lower plate. The two clamping mechanisms can clamp the plates at the left and right ends, which is beneficial to the stability of the plates after clamping.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] The concealed furniture plate connecting fastener is provided with a clamping mechanism. When the plates need to be concealedly connected, the threaded column is threadedly connected to the threaded hole on the upper plate by means of a thread, and then the fixing block is fixed to the top of the lower plate by means of two screws. The limit block and the movable rod are inserted through the expansion hole at the left end of the sliding groove, the upper plate and the lower plate are closed, the sleeve rod is slid to the right to the bottom along the sliding groove, the movable rod compresses the spring, the movable rod slides to the right to adapt to the arc groove, and then the compression spring clamps the movable rod and the arc groove by means of elastic force. The clamping mechanism can limit and stabilize the plates after they are connected, and clamp them by means of the elastic force of the spring to prevent the plates from sliding out of the sliding groove after collision. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0015] Figure 2 This is a three-dimensional diagram of the clamping mechanism of the utility model;

[0016] Figure 3 This is a front sectional view of the structure of the utility model;

[0017] Figure 4 The utility model structure Figure 3 Enlarged view of point A in the middle.

[0018] In the figure: 1, upper plate; 2, lower plate; 3, clamping mechanism; 301, fixed block; 302, sliding groove; 303, sleeve rod; 304, telescopic rod; 305, spring; 306, movable plate; 307, movable rod; 308, limit block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4 , a hidden furniture plate connecting fastener in this embodiment includes an upper plate 1 and a lower plate 2, and a clamping mechanism 3 is provided at the bottom of the upper plate 1;

[0021] The clamping mechanism 3 includes a fixed block 301, a sliding groove 302, a sleeve rod 303, a telescopic rod 304, a spring 305, a movable plate 306, a movable rod 307 and a limit block 308. The top of the lower plate 2 is provided with a fixed block 301, the outside of the fixed block 301 is provided with a sliding groove 302, the bottom of the upper plate 1 is provided with a sleeve rod 303, the inside of the sleeve rod 303 is fixedly installed with the telescopic rod 304, the inside of the sleeve rod 303 is provided with a spring 305, the bottom of the telescopic rod 304 is fixedly installed with a movable plate 306, the bottom of the movable plate 306 is fixedly installed with a movable rod 307, and the outside of the movable rod 307 is fixedly installed with a limit block 308.

[0022] In the case implementation, an expansion hole is opened at the left end of the sliding groove 302, and the expansion hole can be freely passed through by the limit block 308. By setting the expansion hole and the limit block 308, the limit block 308 and the movable rod 307 can enter the interior of the fixed block 301, so that the upper plate 1 is easy to clamp after being connected with the lower plate.

[0023] In the case implementation, a threaded rod is fixedly installed on the top of the sleeve rod 303, and the sleeve rod 303 is threadedly connected to the upper plate 1 through the threaded rod. The fixed block 301 is fixed to the top of the lower plate 2 by two screws. The upper plate 1 and the lower plate 2 can be respectively connected using matching clips.

[0024] In the case implementation, a fixing groove matched with the fixing block 301 is opened on the outside of the lower plate, a thread matched with the thread is opened on the outside of the upper plate, the inner bottom wall of the fixing block 301 is provided with an inclined surface, and the inner bottom wall of the fixing block 301 is provided with an arc groove matched with the movable rod 307. The movable rod 307 can slide to the right through the inclined surface to match the arc groove and then be clamped by the elastic force of the spring 305, which is helpful to prevent the unstable connection of the board when the furniture collides.

[0025] When implementing, follow these steps:

[0026] 1) When the plate needs to be connected in a hidden manner, the threaded column 2 is threadedly connected to the threaded hole on the upper plate 1, and then the fixing block 301 is fixed to the top of the lower plate 2 by two screws;

[0027] 2) Then insert the limit block 308 and the movable rod 307 through the expansion hole at the left end of the sliding groove 302 to close the upper plate 1 and the lower plate 2;

[0028] 3) Slide the sleeve rod 303 to the right along the sliding groove 302 to the bottom, and the movable rod 307 compresses the spring 305;

[0029] 4) Finally, the movable rod 307 slides to the right to match the arc groove, and then the compression spring 305 clamps the movable rod 307 and the arc groove through elastic force.

[0030] To sum up, when it is necessary to make a hidden connection between the plates, the threaded column 2 is threadedly connected to the threaded hole on the upper plate 1 through the thread, and then the fixed block 301 is fixed to the top of the lower plate 2 by two screws, and the limit block 308 and the movable rod 307 are inserted through the expansion hole at the left end of the sliding groove 302, and the upper plate 1 and the lower plate 2 are tightened, and the sleeve rod 303 is slid to the right to the bottom along the sliding groove 302, and the movable rod 307 compresses the spring 305, and the movable rod 307 slides to the right to adapt to the arc groove, and then the compression spring 305 clamps the movable rod 307 and the arc groove through the elastic force. The clamping mechanism 3 can be limited and stable after the plates are connected, and is clamped by the elastic force of the spring 305 to prevent the plates from sliding out of the sliding groove after collision.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A concealed furniture board connecting fastener, comprising an upper plate (1) and a lower plate (2), characterized in that: A clamping mechanism (3) is provided at the bottom of the upper plate (1); The clamping mechanism (3) comprises a fixed block (301), a sliding groove (302), a sleeve rod (303), a telescopic rod (304), a spring (305), a movable plate (306), a movable rod (307) and a limit block (308); the top of the lower plate (2) is provided with a fixed block (301); the outside of the fixed block (301) is provided with a sliding groove (302); the bottom of the upper plate (1) is provided with a sleeve rod (303); the inside of the sleeve rod (303) is fixedly installed with the telescopic rod (304); the inside of the sleeve rod (303) is provided with a spring (305); the bottom of the telescopic rod (304) is fixedly installed with a movable plate (306); the bottom of the movable plate (306) is fixedly installed with a movable rod (307); and the outside of the movable rod (307) is fixedly installed with a limit block (308).

2. The concealed furniture board connecting fastener according to claim 1, characterized in that: An expansion hole is provided at the left end of the sliding groove (302), and the limiting block (308) can freely pass through the expansion hole.

3. The concealed furniture board connecting fastener according to claim 1, characterized in that: The movable rod (307) is sleeved with the sleeve rod (303).

4. The concealed furniture board connecting fastener according to claim 1, characterized in that: A threaded rod is fixedly mounted on the top of the sleeve rod (303), and the sleeve rod (303) is threadedly connected to the upper plate (1) via the threaded rod.

5. The concealed furniture board connecting fastener according to claim 1, characterized in that: The inner bottom wall of the fixing block (301) is provided with an inclined surface, and the inner bottom wall of the fixing block (301) is provided with an arc-shaped groove adapted to the movable rod (307).

6. The concealed furniture board connecting fastener according to claim 1, characterized in that: The number of the clamping mechanisms (3) is two, and the two clamping mechanisms (3) are evenly distributed between the upper plate (1) and the lower plate (2).

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