Quickly disassembled invisible connector

Abstract

The application discloses a quick dismountable invisible connecting piece, which comprises a screw rod fixedly connected to a first plate material and protruding from the surface of the first plate material and having a plug-in rod section, a hollow cylinder body pre-buried and fixed to a second plate material and having a plug-in sliding groove, a free end of the plug-in rod section being provided with a bayonet, a side wall of the plug-in sliding groove being provided with a clamping table for clamping the bayonet, and the hollow cylinder body being provided with a movable spring plate corresponding to the clamping table; when the plug-in rod section is completely inserted into the plug-in sliding groove and the bayonet is clamped on the clamping table, the free end of the plug-in rod section is positioned and fixed by the movable spring plate applying a force to the clamping table, and the plug-in rod section can move in the plug-in sliding groove in a direction away from the clamping table and extrude the movable spring plate to make the bayonet away from the clamping table; the connecting piece has the advantages that the furniture plate material is connected accurately and stably, no visible installation marks such as holes are left on the surface of the plate material, and installation and dismounting do not need tools and are convenient and quick.

Description

Technical Field

[0001] This invention belongs to the field of furniture panel splicing technology, and specifically relates to a furniture panel splicing connector. Background Technology

[0002] Currently, furniture panels are typically assembled using a common three-in-one connector. This connector mainly consists of a screw rod, a metal eccentric wheel, and an expansion nut. The expansion nut is pre-embedded and fixed in one of the panels. The screw rod is threaded and fixed to the expansion nut. A connection hole for the screw rod to extend into and an eccentric wheel mounting hole for the metal eccentric wheel are made on the other panel. The end of the screw rod has a head. The screw rod passes through the connection hole and extends into the connection groove of the metal eccentric wheel. Then, with the help of a screwdriver or other tools, the metal eccentric wheel is rotated and turned so that the head of the screw rod connects to the connection groove of the metal eccentric wheel.

[0003] The installation of this existing three-in-one connector requires drilling holes in the board surface to install a metal eccentric wheel. The exposed metal eccentric wheel and holes disrupt the integrity and aesthetic simplicity of the furniture. Furthermore, the installation and disassembly of the existing three-in-one connector require tools such as screwdrivers, resulting in low efficiency and inconvenience in the production and assembly process. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the present invention aims to provide a quick-release invisible connector that ensures precise and stable connection of furniture boards without leaving visible installation marks such as holes on the board surface, and that can be installed and disassembled without the need for tools, making installation and disassembly convenient and quick.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A quick-release concealed connector includes a screw rod fixedly connected to a first plate and protruding from the surface of the first plate, having a plug-in rod section; a hollow column pre-embedded and fixed to a second plate, having a plug-in groove; the free end of the plug-in rod section has a latch; the side wall of the plug-in groove has a locking platform that engages with the latch; a movable spring is installed on the hollow column corresponding to the locking platform; when the plug-in rod section is fully inserted into the plug-in groove and the latch engages with the locking platform, the movable spring applies a force towards the locking platform to position and fix the free end of the plug-in rod section; and the plug-in rod section can move horizontally within the plug-in groove in the direction of disengaging from the locking platform and push the movable spring to disengage the latch from the locking platform.

[0007] During furniture panel assembly, the screw's insertion rod extends into the insertion groove of the hollow column. The free end of the insertion rod pushes the movable spring piece outward, engaging with the locking platform on the side wall of the insertion groove. The movable spring piece then resets, positioning and securing the free end of the insertion rod to the hollow column. The insertion rod is fully inserted into the insertion groove, ensuring a tight connection between the two furniture panels. No tools are needed during installation. The panel connection is precise and stable, leaving no holes or other installation marks on the visible surface of the panels. After assembly, the screw and hollow column are completely invisible and hidden, resulting in a stronger, more aesthetically pleasing, and simpler overall assembly. During disassembly, pulling the panel with the hollow column installed causes the free end of the insertion rod to push the movable spring piece open, disengaging the locking platform. The insertion rod is then released from the hollow column. Pulling the second panel away from the first panel separates the two panels. Disassembly is also quick and easy, requiring no tools.

[0008] Preferably, the side of the card platform has a guide slope wall, and the free end of the plug-in rod segment has a conical head. When the plug-in rod segment is inserted into the plug-in groove, the conical head, guided by the guide slope wall, pushes the movable spring and makes the bayonet engage with the card platform. The guide slope wall and the conical head allow the plug-in rod segment to be installed more smoothly and easily in the hollow column.

[0009] Preferably, the insertion slide is provided through the hollow column, and a spring clip sleeve wall is formed around the outer periphery of the locking platform. The outer periphery of the spring clip sleeve wall is provided with a spring clip slot communicating with the insertion slide. The movable spring clip is inserted and installed in the spring clip slot and tightly held in the spring clip sleeve wall. Specifically, it includes a screw positioning wall located in the insertion slide and opposite to the locking platform, spring clip mounting walls symmetrically arranged and installed in the spring clip slot, and connecting walls symmetrically arranged on both sides of the screw positioning wall to connect the screw positioning wall and the spring clip mounting wall. The spring clip mounting walls are disconnected to form a spring clip opening. When the free end of the plug-in rod segment is engaged with the mounting plate via the bayonet, the screw positioning wall applies force towards the mounting plate to position and secure the free end of the plug-in rod segment. During disassembly, the free end of the plug-in rod segment pushes against the screw positioning wall, and the spring plate mounting wall, while tightly gripping the spring plate sleeve wall, causes the spring plate opening to open. The movable spring plate undergoes elastic deformation under the pushing force of the free end of the plug-in rod segment until the bayonet disengages from the mounting plate, which allows the screw to separate from the hollow column. At the same time, the movable spring plate can automatically reset after the screw is pulled out of the hollow column.

[0010] The present invention has the following beneficial effects:

[0011] The present invention provides a quick-release invisible connector that ensures precise and stable connection of furniture panels without leaving visible installation marks such as holes on the panel surface. It also has the advantages of being tool-free and easy to install and remove. Attached Figure Description

[0012] Figure 1This is a schematic diagram of the snap-fit ​​assembly of the quick-release and removable invisible connector of the present invention;

[0013] Figure 2 This is a side view of the hollow cylinder of the quick-release and detachable invisible connector of the present invention;

[0014] Figure 3 This is a structural diagram of the top of the hollow column of the quick-release and detachable invisible connector of the present invention;

[0015] Figure 4 This is a structural diagram of the bottom of the hollow column of the quick-release and detachable invisible connector of the present invention;

[0016] Figure 5 This is a perspective view of the hollow cylinder of the quick-release and detachable invisible connector of the present invention;

[0017] Figure 6 This is a side view of the movable spring of the quick-release invisible connector of the present invention;

[0018] Figure 7 This is a top view of the movable spring of the quick-release invisible connector of the present invention;

[0019] Figure 8 This is a diagram of the screw structure of the quick-release and removable concealed connector of the present invention. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so as to better understand the technical concept claimed by the present invention.

[0021] like Figure 1-5 and Figure 8 The quick-release concealed connector shown includes a screw 1 with a plug-in rod section 10 fixedly connected to the first plate 100 and protruding from the surface of the first plate 100, and a hollow column 2 pre-embedded and fixed to the second plate 200 and having a plug-in groove 20. The free end of the plug-in rod section 10 is provided with a bayonet 11, and the side wall of the plug-in groove 20 is provided with a locking platform 21 that engages with the bayonet 11. The hollow column 2 is equipped with a movable spring piece 3 corresponding to the locking platform 21. In this embodiment, the screw 1 is a cylindrical rod, and the insertion groove 20 is a semi-circular long groove that mates with the cylindrical rod. The semi-circular long groove has a semi-circular groove that mates with the cylindrical rod and a straight groove extending to the side of the semi-circular groove. The insertion rod segment 10 can move horizontally along the straight groove portion of the insertion groove 20 to push the movable spring 3. Of course, the groove shape of the insertion groove 20 is not limited to the above-mentioned semi-circular long groove form, and the screw 1 is not limited to a cylindrical rod. The specific form of the screw 1 and the insertion groove 20 can also be other combinations, as long as the insertion rod segment 10 can mate with the insertion groove 20 and also have the function of relatively horizontal movement of the insertion rod segment 10 within the insertion groove 20. Examples are not listed here.

[0022] In this embodiment, the screw 1 has a threaded section 12, and an expansion nut is pre-embedded and installed by opening a hole in the surface of the first plate 100. The screw 1 is fixedly connected to the first plate 100 by the threaded section 12 being threaded to the expansion nut. The outer wall of the hollow column 2 has threads 22, and an expansion nut is pre-embedded and installed by opening a hole in the second plate 200. The hollow column 2 is fixedly installed to the second plate 200 by the threaded connection of its outer wall threads 22 to the expansion nut. This method of installing components on the plate by using expansion nuts is a conventional technical means in the art, and the structure of the expansion nut and the specific installation and fixing process will not be described here.

[0023] When the insertion rod segment 10 is fully inserted into the insertion groove 20 and engaged with the locking plate 21 at the locking slot 11, the movable spring 3 applies force towards the locking plate 21 to position and fix the free end of the insertion rod segment 10, so that the two furniture boards are tightly joined and connected; at the same time, the insertion rod segment 10 can move horizontally in the insertion groove 20 towards the direction of disengaging from the locking plate 21 and push the movable spring 3 to disengage the locking slot 11 from the locking plate 21, and the insertion rod segment 10 is released from the locking connection with the hollow column 2, making it easy to disassemble and separate the two assembled boards.

[0024] In this embodiment, the side of the mounting plate 21 has a guide slope 24, and the free end of the plug-in rod segment 10 has a conical head 14. When the plug-in rod segment 10 is inserted into the plug-in groove 20, the conical head 14, guided by the guide slope 24, pushes the movable spring 3 and makes the bayonet 11 engage with the mounting plate 21. The guide slope 24 and the conical head 14 allow the plug-in rod segment 10 to be installed more smoothly and easily in the hollow column 2. A positioning point 13 is also fixedly provided on the screw 1 between the threaded section 12 and the plug-in rod segment 10. The positioning point 13 can determine the installation height of the screw 1 on the first plate 100, thereby ensuring that the installation height of the screw 1 is consistent when assembling products of the same batch by uniformly setting the positioning point 13 on the screw 1. Specifically, the positioning point 13 can be a nut that is threadedly fastened to the threaded section 12 or a nut that is welded to the threaded section 12. When the screw 1 is fixedly provided with the positioning point 13, the end of the insertion slide groove 20 of the hollow column 2 is provided with a slide groove opening 23 to accommodate the positioning point 13 and provide the positioning point 13 with translational movement space.

[0025] The groove 23 preferably extends toward the insertion rod section 10 in the direction of translational movement relative to the hollow column 2, and forms a lateral opening 25 on the outer wall of the hollow column 2. While providing sufficient sliding space for the screw, the lateral opening 25 can also be used to determine the separation direction of the screw 1 and the hollow column 2. That is, the position and direction of the lateral opening 25 is the separation direction of the invisible connector of the present invention.

[0026] In actual installation and use, the side opening 25 of the concealed connector can face any direction, up, down, left, or right, depending on the installation requirements. This can meet the needs of assembling and connecting furniture panels in a wider range of disassembly directions.

[0027] In this embodiment, as Figure 1 , Figure 3 and Figure 5-7 As shown, the insertion slide 20 is provided through the hollow column 2, and the outer periphery of the locking platform 21 is formed with a spring piece sleeve wall 26. The outer periphery of the spring piece sleeve wall 26 is provided with a spring piece slot 27 that communicates with the insertion slide 20. The movable spring piece 3 is inserted and installed in the spring piece slot 27 and tightly hugs the spring piece sleeve wall 26. Specifically, it includes a screw positioning wall 31 located in the insertion slide 20 and opposite to the locking platform 21, a spring piece mounting wall 32 symmetrically arranged and installed in the spring piece slot 27, and a connecting wall 33 symmetrically arranged on both sides of the screw positioning wall 31 to connect the screw positioning wall 31 and the spring piece mounting wall 32. The spring piece mounting walls 32 are disconnected to form a spring piece opening 34. The spring piece sleeve wall 26 is preferably an arc wall, the screw positioning wall 31 and the connecting wall 33 are preferably flat walls, and the spring piece mounting wall 32 is preferably an arc wall. Furthermore, the hollow column 2 has a cap groove 28 at one end where the movable spring 3 is installed, and an inner cap 29 is inserted and fixed in the cap groove 28 to prevent the movable spring 3 from falling off.

[0028] When the free end of the plug-in rod segment 10 is engaged with the mounting plate 21 through the bayonet 11, the screw positioning wall 31 applies force towards the mounting plate 21 to position and secure the free end of the plug-in rod segment 10. During disassembly, the free end of the plug-in rod segment 10 pushes the screw positioning wall 31, and the spring plate mounting wall 32, while tightly holding the spring plate sleeve wall 26, will cause the spring plate opening 34 to open. The movable spring plate 3 undergoes elastic deformation under the pushing of the free end of the plug-in rod segment 10 until the bayonet 11 disengages from the mounting plate 21, which can separate the engagement between the screw 1 and the hollow column 2. At the same time, the movable spring plate 3 can automatically reset after the screw 1 is pulled out of the hollow column 2.

[0029] The screw positioning wall 31 can also have a guide flap 35 extending from the guide inclined wall 24. The free end of the guide flap 35 is bent outward in the opposite direction of the guide inclined wall 24. The conical head 14 of the plug-in rod section 10 can be smoothly inserted into the movable spring 3 and locked onto the locking platform 21 through the bayonet 11. It is positioned and tightened under the force of the screw positioning wall 31.

[0030] During furniture panel assembly, the insertion rod section 10 of screw 1 extends into the insertion groove 20 of hollow column 2. The free end of the insertion rod section 10 pushes the movable spring piece 3 outward, which engages with the locking platform 21 on the side wall of the insertion groove 20 through the locking slot 11. The movable spring piece 3 then resets, positioning and securing the free end of the insertion rod section 10 to the hollow column 2. The insertion rod section 10 is fully inserted into the insertion groove 20, achieving a three-way positioning and tight connection between the two furniture panels. No tools are needed during installation, and the panel connection is precise and stable without leaving any installation marks such as holes on the visible surface of the panels. After the panels are assembled and connected, the screw 1 and the hollow column 2 are completely invisible and hidden, making the overall connection of the furniture panels stronger, more beautiful and simple. When disassembling, the panel with the hollow column 2 installed can be pulled to move unidirectionally along one side of the insertion groove 20. The free end of the insertion rod segment 10 pushes the movable spring 3 to make the movable spring 3 pop open and the latch 11 disengage from the latch 21. The insertion rod segment 10 and the hollow column 2 are released from the latch. Then, the second panel 200 can be separated by pulling it away from the first panel 100. The two panels can be separated and disassembled without the need for tools. Disassembly is convenient and quick.

[0031] For those skilled in the art, various other corresponding changes and modifications can be made based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this invention.

Claims

1. A quick-assembly and disassembly concealed connector, comprising a screw rod fixedly connected to a first plate and protruding from the surface of the first plate, having a plug-in rod section, and a hollow column pre-embedded and fixed to a second plate, having a plug-in groove, wherein the free end of the plug-in rod section is provided with a bayonet, and the side wall of the plug-in groove is provided with a locking platform that engages with the bayonet, characterized in that, The hollow column is equipped with a movable spring piece corresponding to the locking platform. When the insertion rod segment is fully inserted into the insertion groove and locked in the locking platform, the movable spring piece applies a force towards the locking platform to position and fix the free end of the insertion rod segment. The insertion rod segment can also move horizontally within the insertion groove in the direction of disengaging from the locking platform and push the movable spring piece to disengage the locking platform. The outer periphery of the card platform is formed by a spring clip sleeve wall, and the outer periphery of the spring clip sleeve wall is provided with a spring clip slot communicating with the insertion slide groove; the movable spring clip is inserted and installed in the spring clip slot and tightly hugs the spring clip sleeve wall, including: a screw positioning wall located in the insertion slide groove and opposite to the card platform, a spring clip mounting wall symmetrically arranged and installed in the spring clip slot, and a connecting wall symmetrically arranged on both sides of the screw positioning wall to connect the screw positioning wall and the spring clip mounting wall, the spring clip mounting walls are disconnected to form a spring clip opening.

2. The quick-release concealed connector as described in claim 1, characterized in that, The side of the card slot has a guide slope, and the free end of the plug-in rod section has a conical head.

3. The quick-release concealed connector as described in claim 2, characterized in that, The screw positioning wall extends with a guide flap corresponding to the guide inclined wall, and the free end of the guide flap bends outward in the opposite direction to the guide inclined wall.

4. The quick-release concealed connector as described in claim 1, characterized in that, The insertion groove is provided through the hollow column, and the end of the hollow column where the movable spring is installed has a cap groove, in which an inner cap is inserted and fixed.

5. The quick-release concealed connector as described in claim 1 or 3, characterized in that, The screw has threaded sections for fixed connection to the first plate, and the outer wall of the hollow column has threads for fixed connection to the second plate.

6. The quick-release concealed connector as described in claim 5, characterized in that, The screw is fixedly provided with a positioning point between the threaded section and the plug-in rod section, and the end of the plug-in slide groove of the hollow column is provided with a slide groove opening that accommodates the positioning point and provides the positioning point with translational movement space.

7. The quick-release concealed connector as described in claim 6, characterized in that, The groove extends toward the insertion rod section relative to the hollow column in the direction of translational movement, and forms a lateral opening on the outer wall of the hollow column.

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