Connecting piece and laminate connecting assembly comprising same

Abstract

The utility model discloses a connecting piece and a laminate connecting assembly comprising the same. The laminate connecting assembly further comprises a connecting rod. One end of the connecting rod body is provided with a convex part, and the other end is provided with threads; the connecting piece comprises a connecting body, and the connecting body is provided with a mounting hole and a transition hole located below the mounting hole. The mounting hole is communicated with the transition hole; the diameter of the mounting hole and the width of the communication part of the mounting hole and the transition hole are both larger than the width of the rod body of the connecting rod and are both smaller than the width of the convex part of the connecting rod; the diameter of the transition hole is greater than the width of the convex part of the connecting rod; during use, the rod body of the connecting rod directly penetrates through the mounting hole or penetrates through the mounting hole in a matched mode through the transition hole, the end, provided with threads, of the connecting rod is screwed into the vertical plate, and the end, provided with the protruding part, of the connecting rod is connected with the connecting body in a buckled mode. And the connecting main body is embedded in the laminate. According to the utility model, the shelf board and the vertical board can be connected by only using two parts, and the utility model has the advantages of simpler installation, diversified installation modes, capability of being matched with connecting rods with different sizes, and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of furniture installation accessories, in particular to a connecting piece and a layer board connecting assembly comprising the connecting piece. Background Art

[0002] At present, when assembling furniture including uprights and layers, traditional three-in-one connectors (including an eccentric wheel, a connecting rod, and an embedded nut) are usually used to connect the uprights and the layers. When connecting, the end of the connecting rod with a convex portion is inserted into the eccentric wheel installed on the layer, and the end of the connecting rod with a thread is inserted into the embedded nut set in the upright. However, this connection method not only requires three parts, which increases the cost, but also has the disadvantages of being complicated to install, relatively simple in installation method, the eccentric wheel can only be snap-fitted with a rod of corresponding size, and the embedded nut is prone to slipping when connecting the rod. Summary of the invention

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a connecting piece which is relatively simple to install and has various installation methods and can be matched with connecting rods of different sizes.

[0004] In order to achieve the above purpose, the technical solution provided by the utility model is:

[0005] A connecting piece comprises a connecting body, wherein the connecting body is provided with a mounting hole and a transition hole located below the mounting hole;

[0006] The mounting hole is communicated with the transition hole, and the diameter of the mounting hole is smaller than the diameter of the transition hole.

[0007] In the technical solution, connecting rods of different sizes (including various existing standard or non-standard connecting rods) are installed into the vertical board through the mounting hole or through the mounting hole and the transition hole. When the connecting body is installed, it is embedded in the layer board, so that the connection between the furniture vertical board and the layer board can be realized, and the installation is more convenient.

[0008] Furthermore, a receiving groove is provided in the connecting body, which is located at one end of the mounting hole and above the transition hole. During installation, the convex portion of the connecting rod is clamped in the receiving groove.

[0009] Furthermore, a passage is provided between the accommodating groove and the transition hole to facilitate the passage of the convex portion of the connecting rod.

[0010] Furthermore, a supporting platform located on one side of the aisle is provided between the accommodating groove and the transition hole.

[0011] Furthermore, one side of the connecting body is a plane. In practice, since the connecting body needs to be embedded in the plate, and a round hole is one of the holes in the plate that is easier to process, the connecting body is usually cylindrical, and one side of the cylinder is a plane. This not only makes it easy to identify the two opposite sides of the connecting body, but also allows the plane to fit with the vertical plate so that there is no gap between the layer plate and the vertical plate.

[0012] Furthermore, a limiting portion is provided at the bottom of the connection body to prevent the connection body from extending too far into the installation groove of the layer board when the layer board and the vertical board are installed.

[0013] Furthermore, a groove is provided between the bottom of the outer surface of the connecting body and the limiting portion, which is used to provide storage space for wood chips that have not been cleaned up in the installation groove of the layer board when the connecting body is installed in the installation groove of the layer board, thereby reducing the difficulty of installing the connecting body.

[0014] Furthermore, a straightening column extending upward is provided in the center of the top of the connecting body;

[0015] Preferably, the circumferential surface of the straightening column is provided with second anti-slip teeth; and the edge connected to the top of the main body is provided with a guide slope.

[0016] In this technical solution, the straightening column can prevent the layer board from tilting and tilting during installation, and play a straightening role; the second anti-slip teeth can increase the friction between the straightening column and the layer board installation groove, and improve the firmness. The guide slope plays a guiding role when the connecting body is inserted into the installation groove of the layer board.

[0017] Furthermore, the utility model also provides a layer board connection assembly, comprising a connection rod and the above-mentioned connection body;

[0018] One end of the connecting rod body is provided with a convex portion, and the other end is provided with a thread;

[0019] The diameter of the mounting hole and the width of the connecting point between the mounting hole and the transition hole are both larger than the width of the connecting rod body and smaller than the width of the convex portion of the connecting rod;

[0020] The diameter of the transition hole is greater than the width of the convex portion of the connecting rod;

[0021] When in use, the connecting rod body passes through the mounting hole directly or through the transition hole. The end of the connecting rod with a thread is screwed into the vertical plate, and the end of the connecting rod with a convex portion is snap-connected with the connecting body through the convex portion; the connecting body is embedded in the layer board, thereby realizing the connection between the vertical plate and the layer board.

[0022] This technical solution only requires a connecting rod and a connecting body (two parts) to achieve the connection between the layer board and the vertical board, thereby reducing the cost.

[0023] During the installation of the layers and facades,

[0024] If the width of the thread of the connecting rod is smaller than the diameter of the mounting hole, the threaded end of the connecting rod can be passed through the mounting hole and screwed into the vertical plate. At this time, one side of the connecting body (the flat side) is in close contact with the vertical plate, and the connecting rod is snap-connected to the connecting body through its convex portion. After the mounting groove of the layer plate used to install the connecting body is aligned with the connecting body, the layer plate is tapped from top to bottom so that the connecting body is installed in the mounting groove, thereby completing the installation connection between the layer plate and the vertical plate.

[0025] If the width of the thread of the connecting rod is larger than the diameter of the mounting hole, the end of the connecting rod with the convex portion can be passed through the transition hole, and the connecting rod body enters the mounting hole after passing through the transition hole. The connecting rod is snap-connected with the connecting body through its convex portion, and the end of the connecting rod with the thread is then screwed into the vertical plate. At this time, one side surface of the connecting body (the flat side) is tightly attached to the vertical plate. After the mounting groove of the layer plate used to install the connecting body is aligned with the connecting body, the layer plate is tapped from top to bottom so that the connecting body is installed in the mounting groove, thereby completing the installation connection between the layer plate and the vertical plate.

[0026] This technical solution is relatively simple to install, has various installation methods, and can be used with connecting rods of different sizes.

[0027] Furthermore, it also includes an expansion plug arranged in the vertical plate, the circumferential surface of the expansion plug is provided with a third anti-slip tooth, and the inner side surface of the expansion plug is provided with a screw thread with a pitch of 1.5mm-2.0mm;

[0028] One end of the connecting rod provided with threads is connected to the vertical plate through an expansion plug.

[0029] The technical solution can prevent the expansion plug and the connecting rod from slipping when they are connected.

[0030] Compared with the prior art, the principles and advantages of this technical solution are as follows:

[0031] 1. During the installation of the layer board and the vertical board, if the width of the thread of the connecting rod is smaller than the diameter of the mounting hole, the end of the connecting rod with the thread can be passed through the mounting hole and screwed into the vertical board. The connecting rod is snap-connected with the connecting body through its convex part. After the installation groove of the layer board used to install the connecting body is aligned with the connecting body, the layer board is slapped from top to bottom so that the connecting body is installed in the installation groove, thereby completing the installation connection between the layer board and the vertical board. If the width of the thread of the connecting rod is larger than the diameter of the mounting hole, the end of the connecting rod with the convex part can be passed through the transition hole. After the connecting rod body passes through the transition hole, it enters the mounting hole. The connecting rod is snap-connected with the connecting body through its convex part. The end of the connecting rod with the thread can be screwed into the vertical board. After the installation groove of the layer board used to install the connecting body is aligned with the connecting body, the layer board is slapped from top to bottom so that the connecting body is installed in the installation groove, thereby completing the installation connection between the layer board and the vertical board. The present technical solution only requires connecting rods and connecting bodies (two parts) to achieve the connection between the layer panels and the vertical panels, thereby reducing costs; moreover, it can be installed based on connecting rods of different sizes through mounting holes or through the combination of mounting holes and transition holes, and has the advantages of relatively simple installation, diversified installation methods, and the ability to match connecting rods of different sizes.

[0032] 2. The pitch of the inner thread of the expansion plug is 1.5mm-2.0mm, which can prevent the expansion plug and the connecting rod from slipping when connected, and make the installation faster. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the services required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 It is a three-dimensional diagram of the connecting member in the first embodiment of the utility model;

[0035] Figure 2 This is a three-dimensional diagram of a middle plate connection assembly in Embodiment 1 of the present utility model;

[0036] Figure 3 This is an exploded schematic diagram of a middle-layer board connection assembly of the first embodiment of the utility model (corresponding to the case where the width of the thread of the connecting rod is greater than the diameter of the mounting hole, and the direction of the arrow is the direction in which the connecting rod is inserted into the connecting body);

[0037] Figure 4 This is a process diagram of connecting layer boards and vertical boards by using the layer board connection assembly described in Example 1 of the utility model (A is the vertical board, and B is the layer board).

[0038] Reference numerals:

[0039] 1-connecting rod; 2-connecting body; 3-convex part; 4-installation hole; 5-transition hole; 6-accommodating groove; 7-aisle; 8-supporting card table; 9-plane; 10-first anti-slip tooth; 11-reinforcement rib; 12-limiting part; 13-groove; 14-straightening column; 15-second anti-slip tooth; 16-guide slope; 17-rod body. DETAILED DESCRIPTION

[0040] The present invention is further described below in conjunction with two specific implementations:

[0041] Embodiment 1

[0042] like Figure 1 As shown, a connecting piece described in this embodiment includes a connecting body 2, which is provided with a mounting hole 4 and a transition hole 5 located below the mounting hole 4, the mounting hole 4 is connected to the transition hole 5, and the diameter of the mounting hole 4 is smaller than the diameter of the transition hole 5.

[0043] like Figure 2 and Figure 3 As shown, this embodiment also includes a layer board connection assembly for connecting the layer boards and the vertical boards, which includes a connection rod 1 and the above-mentioned connection member.

[0044] Specifically, in this embodiment, a protrusion 3 is provided at one end of the connecting rod 1, and a thread is provided at the other end.

[0045] The diameter of the mounting hole 4 and the width of the connection between the mounting hole 4 and the transition hole 5 are both larger than the width of the rod body 17 of the connecting rod 1, and smaller than the width of the protrusion 3 of the connecting rod 1; the diameter of the transition hole 5 is larger than the width of the protrusion 3 of the connecting rod 1; when in use, the rod body 17 of the connecting rod 1 directly passes through the mounting hole 4 or passes through the mounting hole 4 through the transition hole 5, and the end of the connecting rod 1 provided with the protrusion 3 is snap-connected to the connecting body 2 through the protrusion 3; the end of the connecting rod 1 provided with threads is connected to the vertical plate A.

[0046] Specifically, in this embodiment, a receiving groove 6 is provided in the connection body 2, which is located at one end of the mounting hole 4 and above the transition hole 5. The protrusion 3 of the connection rod 1 is placed in the receiving groove 6 and is snap-connected with the connection body 2. A passage 7 is provided between the receiving groove 6 and the transition hole 5 to facilitate the passage of the protrusion 3 of the connection rod 1. In practice, the depth of the receiving groove is ≧ the length of the protrusion 3. The receiving groove 6 can not only limit the protrusion 3 of the connection rod 1, but also make the protrusion 3 of the connection rod 1 placed in the connection body 2 when snap-connected with the connection body 2, thereby reducing the difficulty of tapping the layer plate B from top to bottom to install the connection body 2 into the mounting groove.

[0047] Specifically, in this embodiment, a supporting platform 8 located on one side of the aisle 7 is provided between the accommodating groove 6 and the transition hole 5, so that when the connection between the layer B and the vertical plate A is removed and the layer B needs to be tapped from the bottom to the top, the protrusion 3 of the connecting rod 1 will not slide into the transition hole 5, thereby improving the efficiency of the connecting body 2 being separated from the installation groove of the layer B.

[0048] Specifically, in this embodiment, the connecting body 2 is cylindrical, and one side of the cylinder is a plane 9, which not only makes it easy to identify the two opposite sides of the connecting body 2, but also fits with the vertical board A through the plane 9, so that there is no gap between the layer board B and the vertical board A.

[0049] Specifically, in this embodiment, the outer surface of the connection body 2 is provided with a first anti-slip tooth 10 and a reinforcing rib 11 extending in the vertical direction. The first anti-slip tooth 10 can increase the friction between the connection body 2 and the installation groove of the layer B, thereby improving the firmness. The reinforcing rib 11 can play a guiding role during installation, and after installation, it can increase the firmness of the installation, so that the layer B is not easy to fall off.

[0050] Specifically, in this embodiment, a square limiting portion 12 is provided at the bottom of the connecting body 2 to prevent the connecting body 2 from extending too far into the installation groove of the layer board B when the layer board B and the vertical board A are installed. In addition to the square shape, the limiting portion 12 can also be round, petal-shaped, D-shaped, etc.

[0051] Specifically, in this embodiment, a groove 13 is provided between the bottom of the outer surface of the connecting body 2 and the limiting portion 12, which is used to provide storage space for wood chips that have not been cleaned up in the installation groove of layer B when the connecting body 2 is installed in the installation groove of layer B, thereby reducing the difficulty of installing the connecting body 2.

[0052] Specifically, in this embodiment, a cylindrical straightening column 14 is provided at the center of the top of the connecting body 2, and a second anti-slip tooth 15 is provided on the circumferential surface of the straightening column 14; and a guide slope 16 is provided on the edge of the top of the connecting body 2. The straightening column 14 can prevent the layer B from tilting and playing a straightening role; the second anti-slip tooth 15 can increase the friction between the straightening column 14 and the installation groove of the layer B, and improve the firmness. The guide slope 16 plays a guiding role when the connecting body 2 is inserted into the installation groove of the layer B. In addition to the cylindrical shape, the straightening column 14 can also be a polygonal column, a petal-shaped column, etc.

[0053] The working principle of this embodiment is as follows:

[0054] During the installation of layer B and vertical board A,

[0055] If the width of the thread of the connecting rod 1 is smaller than the diameter of the mounting hole 4, the threaded end of the connecting rod 1 can be passed through the mounting hole 4 and screwed into the vertical plate A. The connecting rod 1 is snap-connected to the connecting body 2 through its protrusion 3. After the mounting groove of the layer plate B used to install the connecting body 2 is aligned with the connecting body 2, the layer plate B is tapped from top to bottom so that the connecting body 2 is installed in the mounting groove, thereby completing the installation connection between the layer plate B and the vertical plate A.

[0056] like Figure 3 As shown, if the width of the thread of the connecting rod 1 is larger than the diameter of the mounting hole 4, the end of the connecting rod 1 with the protrusion 3 can be passed through the transition hole 5, and the connecting rod 1 body 17 enters the mounting hole 4 after passing through the transition hole 5. The connecting rod 1 is snap-connected with the connecting body 2 through its protrusion 3, and the end of the connecting rod 1 with the thread is then screwed into the vertical plate A. After the mounting groove of the layer plate B used to install the connecting body 2 is aligned with the connecting body 2, the layer plate B is tapped from top to bottom so that the connecting body 2 is installed in the mounting groove, thereby completing the installation connection between the layer plate B and the vertical plate A.

[0057] After the connecting rod 1 is snap-fitted with the connecting body 2 through its protrusion 3, the installation process of the layer board B and the vertical board A is as follows: Figure 4 shown.

[0058] In this embodiment, the vertical plate A and the layer plate B are described based on their respective states at that time.

[0059] Embodiment 2

[0060] Compared with the first embodiment, the layer board connection assembly of this embodiment further includes an expansion plug arranged in the vertical plate A, the circumferential surface of the expansion plug is provided with a third anti-slip tooth (for increasing the friction with the vertical plate A), and the inner side surface of the expansion plug is provided with a screw thread with a pitch of 1.5 mm. The end of the connecting rod 1 provided with a thread is connected to the vertical plate A through the expansion plug.

[0061] Compared with most expansion plugs on the market whose internal thread pitch is 0.8mm-1.0mm, the pitch of the internal thread of the expansion plug is modified in this embodiment, so that the expansion plug and the connecting rod 1 are not prone to slipping when connected, and the installation is fast.

[0062] The embodiments described above are only preferred embodiments of the present invention, and are not intended to limit the scope of implementation of the present invention. Therefore, all changes made based on the shape and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A connecting piece, characterized in that: It comprises a connecting body, which is provided with a mounting hole and a transition hole located below the mounting hole; The mounting hole is communicated with the transition hole, and the diameter of the mounting hole is smaller than the diameter of the transition hole.

2. A connector according to claim 1, characterized in that: The connection body is provided with a receiving groove located at one end of the mounting hole and above the transition hole.

3. A connector according to claim 2, characterized in that: A passage is provided between the accommodating groove and the transition hole to facilitate the convex part of the connecting rod to pass through.

4. A connector according to claim 3, characterized in that: A supporting clamping platform located at one side of the aisle is provided between the accommodating groove and the transition hole.

5. A connector according to claim 1, characterized in that: One side surface of the connecting body is a plane.

6. A connector according to claim 5, characterized in that: A limiting portion is provided at the bottom of the connecting body.

7. A connector according to claim 6, characterized in that: A groove is provided between the bottom of the outer surface of the connecting body and the limiting portion.

8. A connector according to claim 1, characterized in that: A straightening column extending upward is arranged in the center of the top of the connecting body.

9. A layer board connection assembly, used for connecting a layer board and a vertical board, characterized in that: It comprises a connecting rod and a connecting piece according to any one of claims 1 to 8; One end of the connecting rod body is provided with a convex portion, and the other end is provided with a thread; The diameter of the mounting hole and the width of the connecting point between the mounting hole and the transition hole are both larger than the width of the connecting rod body and smaller than the width of the convex portion of the connecting rod; The diameter of the transition hole is greater than the width of the convex portion of the connecting rod; When in use, the connecting rod body passes through the mounting hole directly or through the transition hole. The end of the connecting rod with a thread is screwed into the vertical plate, and the end of the connecting rod with a convex portion is snap-connected with the connecting body through the convex portion; the connecting body is embedded in the layer board, thereby realizing the connection between the vertical plate and the layer board.

10. A layer board connection assembly according to claim 9, characterized in that: It also includes an expansion plug arranged in the vertical plate, the circumferential surface of the expansion plug is provided with a third anti-slip tooth, and the inner side surface of the expansion plug is provided with a screw thread with a pitch of 1.5mm-2.0mm; One end of the connecting rod provided with threads is connected to the vertical plate through an expansion plug.

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