Furniture connecting sleeve and connecting structure

Abstract

The utility model discloses a furniture connecting sleeve and a connecting structure, the furniture connecting sleeve comprises a cylindrical sleeve body, one end of the sleeve body extends along the axial direction to form buckles, and at least two buckles are uniformly distributed along the circumferential direction of the sleeve body; the ends, away from the sleeve body, of the buckles incline towards the axis direction of the sleeve body, and a buckle part is defined by the buckles. The outer surface of the sleeve body is provided with protrusions which are arranged regularly. The furniture connecting sleeve and the connecting structure have the advantages of being ingenious in structural design, convenient to assemble in a hidden mode, convenient to install, beneficial to reducing assembling difficulty and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of furniture assembly, in particular to a furniture connecting sleeve. Background Art

[0002] Panel furniture, also known as artificial board furniture, is furniture whose main parts are made of artificial boards such as fiberboard, particleboard, plywood, blockboard, laminated wood (including plain and veneered artificial boards). Panel furniture is mainly connected by three-in-one connectors, which include eccentric wheels, connecting rods and embedded parts. When in use, the ball head at the end of the connecting rod needs to be inserted into the hook groove of the eccentric wheel. The assembler uses a tool to turn the eccentric wheel to firmly lock the ball head at the end of the connecting rod. Due to the need to operate the eccentric wheel, the eccentric wheel must be exposed to the outside, affecting the overall appearance. At the same time, during the assembly process, the eccentric wheel needs to be rotated after the connecting rod is in place, which usually requires the cooperation of more than two people, increasing the difficulty of assembly. Utility Model Content

[0003] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is: how to provide a furniture connecting sleeve and connecting structure with ingenious structural design, convenient for hidden assembly, easy installation, and conducive to reducing the difficulty of assembly.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A furniture connection sleeve, characterized in that it comprises a sleeve body in a cylindrical shape, one end of the sleeve body extending axially to form a buckle, at least two buckles are evenly arranged along the circumference of the sleeve body; all the buckles are inclined toward the axial direction of the sleeve body at one end away from the sleeve body and enclose a buckle part; the outer surface of the sleeve body has protrusions arranged in a regular pattern.

[0006] When in use, the buckle part is inserted into the mounting hole with the buckle part facing inwards. Since the outer surface of the sleeve body has a protrusion, the sleeve body can be fixed in the mounting hole by the friction between the protrusion and the wall of the mounting hole. In addition, since the buckle is tilted inwards, the inner side surface of the buckle can be used as a guide surface during the insertion of the connecting rod to align the buckle part.

[0007] Furthermore, the protrusion extends spirally along the outer surface of the sleeve body to form a thread.

[0008] In this way, the sleeve body can be screwed into the mounting hole, thereby reducing damage to the wall of the mounting hole.

[0009] Furthermore, the protrusions are conical or columnar, arranged in rows along the axial direction of the sleeve, and multiple rows are evenly distributed along the circumference of the sleeve.

[0010] In this way, the sleeve can be directly knocked into the installation hole, or the sleeve can be screwed into the installation hole; or the sleeve can be knocked into place first, and then the sleeve can be rotated, making the installation more flexible and convenient.

[0011] Furthermore, 5 or 6 buckles are evenly distributed along the circumferential direction.

[0012] Furthermore, the protrusion has a height of 0.3 to 1.5 mm.

[0013] Furthermore, one end of all the buckles away from the sleeve body is bent outwards to enclose and form an inverted cone-shaped unlocking portion.

[0014] After assembly, panel furniture still needs to be disassembled and reassembled. Through the inverted cone-shaped unlocking portion, the connecting rod can be disengaged from the buckle portion when a pulling force is applied in the reverse direction.

[0015] Furthermore, the sleeve body has a contraction seam extending through the sleeve body in the axial direction.

[0016] In this way, when the sleeve is matched with the mounting hole, the diameter of the sleeve can be fine-tuned by utilizing the width of the shrinkage seam for plates of different hardness.

[0017] Furthermore, one end of the sleeve body away from the buckle has a radially penetrating slot or an inwardly protruding block, and the slots or blocks are evenly distributed along the circumferential direction to form a clamping portion that can provide circumferential limiting.

[0018] In this way, the clamping portion formed by the clamping grooves or clamping blocks evenly arranged in the circumferential direction can be conveniently matched with the clamping portion using tools and the sleeve body can be rotated, thereby making installation more convenient.

[0019] Furthermore, one end of the sleeve body away from the buckle has a radially penetrating slot, and the slot has a clamping block bent toward the middle of the sleeve body.

[0020] A furniture connection structure, characterized in that it includes the furniture connection sleeve and the connection rod as described above, one end of the connection rod has a connection thread, and the other end has a ball head; the ball head of the connection rod passes through the buckle of the connection sleeve and is clamped on the buckle part.

[0021] In summary, the furniture connecting sleeve and the connecting structure of the present invention have the advantages of clever structural design, convenient hidden assembly, easy installation, and reduced assembly difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic diagram of the plate connection structure.

[0023] Figure 2 It is a structural schematic diagram of the connecting sleeve.

[0024] Figure 3 This is a structural schematic diagram of the connection sleeve from another perspective.

[0025] Figure 4 and Figure 5 Schematic diagrams of two other structures of the connecting sleeve.

[0026] Figure 6 The figure is a schematic diagram of the structure of a plug.

[0027] Figure 7 This is a schematic diagram of the structure of the connecting sleeve in Example 2. DETAILED DESCRIPTION

[0028] The present invention will be further described in detail below in conjunction with the embodiments.

[0029] Embodiment 1: A furniture connection structure, such as Figure 1 As shown, it includes a plate A and a plate B. An embedded nut 81 is installed on the side of the plate A. The embedded nut 81 is connected to a connecting rod 82. The end of the connecting rod 82 has a ball head 83. A mounting hole is provided on the end surface of the plate B. A connecting sleeve is embedded in the mounting hole. Figure 2 and Figure 3 As shown, the connecting sleeve comprises a cylindrical sleeve body 1, one end of the sleeve body 1 extends axially to form a buckle 2, and at least two buckles 2 are evenly arranged along the circumference of the sleeve body 1; the ends of all the buckles 2 away from the sleeve body 1 are inclined toward the axial direction of the sleeve body 1, and enclose a buckle portion 3, the inscribed circle diameter of the buckle portion 3 is smaller than the ball head diameter of the connecting rod; the outer surface of the sleeve body 1 has regularly arranged protrusions 4; the ball head of the connecting rod passes through the buckle of the connecting sleeve and is clamped on the buckle portion. According to the test, the effect is best when 5 or 6 buckles 2 are evenly arranged along the circumference.

[0030] Since the panel furniture still needs to be disassembled and reassembled after assembly, in order to allow the connecting rod to fall off from the buckle part, the end of the buckle 2 away from the sleeve 1 is bent outward to enclose an inverted cone-shaped unlocking part 5. Through the inverted cone-shaped unlocking part, the connecting rod can be released from the buckle part when a pulling force is applied in the reverse direction.

[0031] In order to make the connection between the sleeve and the mounting hole more reliable and avoid the explosion of the mounting hole, the protrusion 4 has a protruding height of 0.3 to 1.5 mm and extends spirally along the outer surface of the sleeve 1 to form a thread. In implementation, the protrusion 4 can be formed by extruding the inner side of the sleeve 1 outward, or by other machining. A plate with multiple ridges can also be used, which is formed by staggered docking of the ridges after being wound into a sleeve. After the plate is wound, an expansion joint 6 will naturally be formed. The expansion joint 6 can also be used to fine-tune the diameter of the sleeve 1, so that it is more suitable for plates of different materials.

[0032] Since the sleeve is located between the plate A and the plate B, in order to make the plate A and the plate B fit completely, the sleeve 1 needs to be completely embedded in the installation hole. In this embodiment, the sleeve needs to be screwed into the installation hole. In order to facilitate the rotation of the sleeve, the end of the sleeve 1 away from the buckle 2 has a radially penetrating groove, and two of the grooves are evenly distributed along the circumference. The two grooves form a clamping portion 7 that can provide circumferential limit on the side surface of the sleeve 1 when it is rotated clockwise or counterclockwise.

[0033] During assembly, a rotating tool with a plug 91 can be used. The plug 91 is cylindrical and its diameter matches the inner diameter of the sleeve 1. The plug 91 has a protruding limit block 92, and the diameter of the circumscribed circle of the limit block 92 is less than or equal to the diameter of the sleeve 1.

[0034] In the specific implementation, considering that the thickness of the sleeve 1 is relatively thin, the contact surface between the stopper of the plug and the slot is relatively small, and it is easy to be worn and damaged after long-term use. When cutting the slot, one side of the cut sheet can be retained on the sleeve 1 and bent toward the middle of the sleeve 1, that is, the slot has a block bent toward the middle of the sleeve 1, such as Figure 4 As shown, the protruding block is used to cooperate with the groove 93 on the plug head, as shown in FIG. Figure 6 As shown, in this way, the force-bearing area of ​​the clamping portion 7 can be increased on the basis of the original material, thereby improving the reliability of operation and increasing the service life of the plug.

[0035] As another feasible implementation, the end of the sleeve 1 away from the buckle 2 has a block protruding inwardly, such as Figure 5 As shown, the clamping block is formed by flattening the end of the sleeve 1 inwardly to form an inner plane, and 2, 3 or 6 inner planes are evenly distributed in the circumferential direction to form a clamping portion 7 that can provide circumferential limiting. Such a clamping portion 7 can be operated with a plug with 6 limiting planes (similar to a hexagonal wrench).

[0036] Embodiment 2: The main difference between this embodiment and embodiment 1 is the arrangement of the protrusion 4. In this embodiment, Figure 7As shown, the protrusions 4 are conical or columnar, arranged in rows along the axial direction of the sleeve 1, and multiple rows are evenly arranged along the circumference of the sleeve 1. With such a structure, during assembly, the sleeve 1 can be quickly knocked into the mounting hole by hammering, and then the sleeve 1 can be rotated by using a plug (hexagonal wrench) in cooperation with the clamping portion 7, and the rotation angle is smaller than the central angle of the protrusions 4 in two adjacent rows, which is 60° in this embodiment, so that the protrusions 4 avoid the knock-in path to ensure a reliable axial positioning relationship between the protrusions 4 and the mounting hole.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A furniture connection set, characterized in that: The invention comprises a cylindrical sleeve (1), one end of the sleeve (1) extending axially to form a buckle (2), at least two buckles (2) being evenly arranged along the circumference of the sleeve (1); all ends of the buckles (2) away from the sleeve (1) are inclined toward the axial center direction of the sleeve (1) to form a buckle portion (3); the outer surface of the sleeve (1) has protrusions (4) arranged in a regular pattern; all ends of the buckles (2) away from the sleeve (1) are bent outwards to form an inverted cone-shaped unlocking portion (5); and the sleeve (1) has a contraction seam (6) extending through the sleeve along the axial direction.

2. The furniture connection sleeve according to claim 1, characterized in that: The protrusion (4) extends spirally along the outer surface of the sleeve body (1) to form a thread.

3. The furniture connection sleeve according to claim 1, characterized in that: The protrusions (4) are conical or columnar, arranged in rows along the axial direction of the sleeve (1), and multiple rows are evenly distributed along the circumference of the sleeve (1).

4. The furniture connection sleeve according to claim 1, characterized in that: The buckles (2) are evenly distributed in the circumferential direction in 5 or 6 numbers.

5. The furniture connection sleeve according to claim 1, characterized in that: The protrusion (4) has a protruding height of 0.3 to 1.5 mm.

6. The furniture connection sleeve according to any one of claims 1 to 5, characterized in that: The end of the sleeve (1) facing away from the buckle (2) has a radially penetrating slot or an inwardly protruding block, and the slots or blocks are evenly distributed along the circumference to form a clamping portion (7) that can provide circumferential limiting.

7. The furniture connection sleeve according to claim 6, characterized in that: One end of the sleeve (1) facing away from the buckle (2) has a radially penetrating slot, and the slot has a clamping block formed by bending toward the middle of the sleeve (1).

8. A furniture connection structure, characterized in that: It comprises a furniture connecting sleeve and a connecting rod as claimed in any one of claims 1 to 7, wherein one end of the connecting rod has a connecting thread and the other end has a ball head; the ball head of the connecting rod passes through the buckle (2) of the connecting sleeve and is buckled on the buckle part (3).

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