CN210290407U

CN210290407U - Anti-loose and anti-skid fixing column for furniture

Info

Publication number: CN210290407U
Application number: CN201921164398.7U
Authority: CN
Inventors: 张小军; 何永军; 张兰
Original assignee: Jiaxing Dali Precision Fastener Co Ltd
Current assignee: Jiaxing Dali Precision Fastener Co Ltd
Priority date: 2019-07-23
Filing date: 2019-07-23
Publication date: 2020-04-10
Anticipated expiration: 2029-07-23

Abstract

The utility model belongs to the technical field of furniture accessory, especially, relate to a locking anti-skidding fixed column is used to furniture. It has solved prior art and has rotated easily and packaging efficiency low grade technical problem. This furniture is with locking anti-skidding fixed column includes the circular block, connect the solid fixed cylinder at circular block terminal surface center, outer wall at solid fixed cylinder is equipped with a plurality of anti-skidding protruding muscle along solid fixed cylinder axial distribution, and set up the ring groove that is close to solid fixed cylinder terminal surface at the circular block, be equipped with the inner tube with solid fixed cylinder circumference fixed connection in the solid fixed cylinder, be equipped with the bell mouth at circular block axial direction center, the internal diameter of little internal diameter end towards inner tube and inner tube of bell mouth equals the little internal diameter end diameter of bell mouth, the one end that the circular block was kept away from to chamfer one and solid fixed cylinder flushes, keep away from the inside chamfer two that is equipped with of one end of chamfer one at the inner tube. The utility model has the advantages that: the anti-skid and the assembly efficiency can be improved.

Description

Anti-loose and anti-skid fixing column for furniture

Technical Field

The utility model belongs to the technical field of furniture accessory, especially, relate to a locking anti-skidding fixed column is used to furniture.

Background

The furniture is assembled without separating the fastening piece and various fixing columns.

The existing fixing column is of a tubular structure, when the fixing column is installed, the tubular column is inserted into a hole which is formed in advance in furniture, meanwhile, two adjacent parts are connected through an internal penetrating screw or other connecting pieces, the structural strength of a joint can be improved, and deviation of screw assembling can be avoided.

It can satisfy production and operation requirement to a certain extent for foretell fixed column, but, to foretell fixed column, when it inserted the hole that furniture was seted up in advance, the fixed column took place relative hole circumferential direction easily, and secondly, current fixed column, its only one end has the chamfer, and when the screw inserted from the fixed column other end, it formed the hindrance to the screw in the one end that does not chamfer, influences whole equipment progress and efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem, provide an antiskid and can improve packaging efficiency's locking antiskid fixed column for furniture.

In order to achieve the above purpose, the utility model adopts the following technical proposal: this furniture is with locking anti-skidding fixed column includes the circular block, connect the solid fixed cylinder at circular block terminal surface center, outer wall at solid fixed cylinder is equipped with a plurality of anti-skidding protruding muscle along solid fixed cylinder axial distribution, and set up the ring groove that is close to solid fixed cylinder terminal surface at the circular block, be equipped with the inner tube with solid fixed cylinder circumference fixed connection in the solid fixed cylinder, be equipped with the bell mouth at circular block axial direction center, the internal diameter of little internal diameter end towards inner tube and inner tube of bell mouth equals the little internal diameter end diameter of bell mouth, the one end that the circular block was kept away from to chamfer one and solid fixed cylinder flushes, keep away from the inside chamfer two that is equipped with of one end of chamfer one at the inner tube.

In the anti-loosening and anti-skidding fixing column for furniture, the first chamfer is arranged at one end, close to the conical hole, of the inner barrel, and the conical hole and the chamfer are smoothly spliced.

In the anti-loosening and anti-skidding fixing column for furniture, the circular block is circumferentially provided with the arc convex surface.

In the anti-loosening and anti-skidding fixing column for furniture, the annular groove is formed in the outer edge of one end face, close to the fixing cylinder, of the circular block.

In the anti-loose and anti-skid fixing column for furniture, the inner cylinder and the fixing cylinder are in interference fit.

Compared with the prior art, this furniture lies in with locking anti-skidding fixed column's advantage:

due to the cooperative design of the tapered hole, the first chamfer and the second chamfer, no obstruction phenomenon exists no matter which end the screw is inserted into, and the assembly efficiency can be improved invisibly.

The anti-skidding convex ribs are manufactured through knurling machine, the strip-shaped grooves are formed between every two adjacent anti-skidding convex ribs, and by means of the design, the anti-skidding rib can form an anti-skidding effect after being inserted into the holes formed in advance in furniture, and the phenomenon of free falling is avoided.

Drawings

Fig. 1 is a schematic structural diagram provided by the present invention.

Fig. 2 is a schematic view of the cross-sectional structure of the fixing cylinder provided by the present invention.

In the figure, a circular block 1, an annular groove 11, a tapered hole 12, a fixed cylinder 2, an anti-skid convex rib 21, an inner cylinder 3, a first chamfer 31 and a second chamfer 32.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in figures 1-2, the anti-loosening and anti-skidding fixing column for the furniture is formed by cold heading, and the precision of a blank piece and the integral structural strength can be ensured by cold heading.

The device comprises a circular block 1 and a fixed cylinder 2 connected to the center of one end face of the circular block 1, wherein the diameter of the circular block 1 is more than twice of the outer diameter of the fixed cylinder 2.

Be equipped with a plurality of anti-skidding protruding muscle 21 along 2 axial distributions of solid fixed cylinder at solid fixed cylinder 2's outer wall, anti-skidding protruding muscle 21 makes through the annular knurl machine tooling, and then forms the bar groove between two adjacent anti-skidding protruding muscle 21, adopts this kind of design, and it can form anti-skidding effect after inserting in the hole that furniture was seted up in advance, has avoided the free obscission.

One end face of the circular block 1, which is close to the fixed cylinder 2, is an annular positioning face, and the annular positioning face is matched with the bottom of a counter bore hole of the furniture to realize positioning.

And the annular groove 11 is arranged on the end face, close to the fixed cylinder 2, of the circular block 1, the contact area of the annular groove 11 is reduced, the inner cylinder 3 is arranged in the fixed cylinder 2 and is fixedly connected with the fixed cylinder 2 in the circumferential direction, and the inner cylinder 3 is in interference fit with the fixed cylinder 2. The axial center of the round block 1 is provided with a tapered hole 12, the small inner diameter end of the tapered hole 12 faces the inner barrel 3, the inner diameter of the inner barrel 3 is equal to the diameter of the small inner diameter end of the tapered hole 12, one end of the inner barrel 3, which is close to the tapered hole 12, is provided with a chamfer 31, and the design of the tapered hole 12 and the chamfer 31 is adopted, so that the phenomenon of blockage caused by the insertion of a screw can be avoided.

The inner wall of one end of the tapered hole 12 close to the fixed cylinder 2 is provided with a limiting convex shoulder, and the end part of one end of the inner cylinder 3 provided with the chamfer I31 abuts against the limiting convex shoulder.

One end of the inner barrel 3, which is far away from the first chamfer 31, is flush with one end of the fixed barrel 2, which is far away from the circular block 1, and a second chamfer 32 is arranged inside one end of the inner barrel 3, which is far away from the first chamfer 31.

The cooperation of the tapered hole 12 and the first chamfer 31 and the second chamfer 32 prevents the screw from being inserted from any one side, thereby improving the assembly efficiency.

The tapered hole 12 and the chamfer one 31 are smoothly spliced.

The circular block 1 is provided with a circular arc convex surface 13 in the circumferential direction. The arc convex surface 13 is not easy to knock down the hand of a person.

The circular groove 11 is arranged on the outer edge of one end face of the circular block 1 close to the fixed cylinder 2. Of course, the annular groove 11 can be arranged at the inner side close to the fixed cylinder 2, and is a cold heading forming groove.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The anti-loose and anti-skid fixing column for the furniture comprises a circular block (1), a fixing cylinder (2) connected to the center of one end face of the circular block (1), and is characterized in that a plurality of anti-skid convex ribs (21) distributed along the axial direction of the fixing cylinder (2) are arranged on the outer wall of the fixing cylinder (2), and a circular groove (11) arranged at one end face, close to the fixing cylinder (2), of the circular block (1), an inner cylinder (3) fixedly connected with the fixing cylinder (2) in the circumferential direction is arranged in the fixing cylinder (2), a conical hole (12) is arranged at the axial center of the circular block (1), the small inner diameter end of the conical hole (12) faces towards the inner cylinder (3), the inner diameter of the inner cylinder (3) is equal to the diameter of the small inner diameter end of the conical hole (12), a chamfer I (31) is arranged at one end, close to the conical hole (12), one end, far away from the chamfer I (31), of the inner cylinder (3) is, and a second chamfer (32) is arranged in one end of the inner cylinder (3) far away from the first chamfer (31).

2. Anti-loose and anti-skid fixing column for furniture according to claim 1, characterized in that the tapered hole (12) and the chamfer one (31) are smoothly spliced.

3. The anti-loose and anti-skid fixing column for the furniture as claimed in claim 1, wherein the circular block (1) is circumferentially provided with a circular arc convex surface (13).

4. The anti-loose and anti-skid fixing column for the furniture as claimed in claim 1, wherein the circular groove (11) is arranged on the outer edge of one end face of the circular block (1) close to the fixing cylinder (2).

5. The anti-loose and anti-skid fixing column for the furniture as claimed in claim 1, wherein the inner cylinder (3) and the fixing cylinder (2) are in interference fit.