CN213331906U

CN213331906U - Novel anti-offset locking screw

Info

Publication number: CN213331906U
Application number: CN202022225337.6U
Authority: CN
Inventors: 朱碧玉
Original assignee: Shenzhen Wanshun Hardware Products Co ltd
Current assignee: Shenzhen Wanshun Hardware Products Co ltd
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2021-06-01
Anticipated expiration: 2030-10-09

Abstract

The utility model discloses a novel anti-bias locking screw rod, which is provided with a fastening rod and an insert; the insert is sleeved inside the fastening rod; the insert is provided with a push rod and an expansion assembly; the expansion assembly is fixed at the bottom of the push rod, and the push rod drives the expansion assembly to move up and down in the fastening rod; the expansion assembly is provided with a support column, a fitting plate and a spring piece; the top end of the supporting column is fixed at the bottom of the push rod, one end of the spring part is fixed on the outer wall of the supporting column, and the other end of the spring part is fixed on the inner wall of the attaching plate; the outer wall of the attaching plate is provided with a second thread structure; a placing position for placing one end part of the spring piece is arranged in the attaching plate; the utility model discloses a prevent that skew locking screw has solved in the askew entering screw hole of screw rod to make the fixed effect of screw rod reach anticipated effect.

Description

Novel anti-offset locking screw

Technical Field

The utility model belongs to the five metals field especially relates to a novel prevent locking screw of off-set.

Background

The use of screws for locking is known in many industries, and the conventional screws often have the problem of poor engagement between the external threads and the internal threads of the threaded holes, resulting in some drawbacks, such as: in the initial state of the upper screw, the screw and the screw hole are not in the same plane (on the same line) due to force application, so that the screw is distorted and enters the screw hole, and the fixing effect of the screw cannot achieve the expected effect; to improve this problem, there have been many prior proposals to improve the structure of the screw, and therefore, a new type of anti-bias lock screw structure is required.

SUMMERY OF THE UTILITY MODEL

The utility model provides a novel prevent off-set locking screw, the above-mentioned problem of solution.

In order to solve the above problem, the utility model provides a technical scheme as follows: a novel anti-bias locking screw is provided with a fastening rod and an insert; the insert is sleeved inside the fastening rod; the insert is provided with a push rod and an expansion assembly; the expansion assembly is fixed at the bottom of the push rod, and the push rod drives the expansion assembly to move up and down in the fastening rod; the expansion assembly is provided with a support column, a fitting plate and a spring piece; the top end of the supporting column is fixed at the bottom of the push rod, one end of the spring part is fixed on the outer wall of the supporting column, and the other end of the spring part is fixed on the inner wall of the attaching plate;

the outer wall of the attaching plate is provided with a second thread structure; the interior of attaching plate is equipped with places the position of placing of spring part an end.

Preferably, the fastening rod is hollow; the outer wall of the fastening rod is provided with a first thread structure, the inner wall of the fastening rod is provided with a preset channel, and the preset channel is longitudinally arranged inside the fastening rod.

Preferably, the outer edge of the top of the push rod is provided with a limiting piece, and the upper surface of the limiting piece is provided with a cross-shaped or straight-shaped channel; the outer edge of locating part and the interior border laminating at anchorage bar top.

Preferably, the inner edge of the fastening rod is provided with a groove for placing the outer edge of the limiting part, and the outer edge of the top of the fastening rod is provided with a channel which is the same as the limiting part.

Preferably, the limiting part is circular, the middle part is hollow, and the channels of the limiting part are on the same straight line.

Preferably, the spring element is a spring plate, and the spring plate is in an arc compression shape in an initial state.

The beneficial effects for prior art are that, adopt above-mentioned scheme, the utility model discloses a prevent that skew locking screw has solved in the askew entering screw of screw rod to make the fixed effect of screw rod reach anticipated effect.

Drawings

For a clearer explanation of the embodiments or technical solutions in the prior art, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of the present embodiment;

FIG. 2 is a second schematic structural diagram of the present embodiment;

FIG. 3 is a schematic view of the fastening rod of the present embodiment;

fig. 4 is one of the schematic structural views of the fastening rod of the present embodiment.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The use of the terms "fixed," "integrally formed," "left," "right," and the like in this specification is for illustrative purposes only, and elements having similar structures are designated by the same reference numerals in the figures.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

As shown in fig. 1-4, one embodiment of the present invention is:

a novel anti-bias locking screw is provided with a fastening rod 1 and an insert 3; the insert 3 is sleeved inside the fastening rod 1; the insert 3 is provided with a push rod and an expansion assembly; the expansion assembly is fixed at the bottom of the push rod, and the push rod drives the expansion assembly to move up and down in the fastening rod 3; the expansion assembly is provided with a support column 21, an attaching plate 23 and a spring piece 22; the top end of the supporting column 21 is fixed at the bottom of the push rod, one end of the spring element 22 is fixed on the outer wall of the supporting column 21, and the other end of the spring element 22 is fixed on the inner wall of the attaching plate 23;

the outer wall of the attaching plate 23 is provided with a second thread structure; the interior of attaching plate is equipped with places the position of placing of spring part an end.

Preferably, the fastening rod 1 is hollow; the outer wall of the fastening rod 1 is provided with a first thread structure, the inner wall of the fastening rod 1 is provided with a preset channel, and the preset channel is longitudinally arranged inside the fastening rod.

Preferably, a limiting piece 31 is arranged at the outer edge of the top of the push rod, and a cross-shaped or straight-shaped channel is formed in the upper surface of the limiting piece 31; the outer edge of the limiting member 31 is attached to the inner edge of the top of the fastening rod.

Preferably, the border is equipped with the recess of placing the locating part outside along in anchorage bar 1, the outside border at anchorage bar 1 top is equipped with the channel the same with the locating part.

Preferably, the limiting member 31 is circular, the middle part is hollow, and the channels of the limiting member 31 are on the same straight line.

Preferably, the spring member 22 is a spring plate that is initially compressed in an arc.

Example 2: in order to prevent the screw rod from being biased when entering the screw hole; first, promote the push rod, the outer wall of attaching plate 23 is from the top down sliding in predetermined channel, when the outer fringe of locating part 31 reaches the channel of placing that reaches the interior border of anchorage bar, at this moment, the top of attaching plate 23 has broken away from the bottom inner wall of anchorage bar 1, spring part 22 has no constraining force, and then make attaching plate 23 bounce, thereby reach the surface of attaching plate and the surface of anchorage bar at same perpendicular horizontal plane, and then make the second screw of attaching plate and the interior thread combination of screw, it is rotatory with anchorage bar and push rod through a word screwdriver or cross screwdriver, thereby stop the anchorage bar and take place the initial stage of biasing at last screw.

It should be noted that the above technical features are continuously combined with each other to form various embodiments which are not listed above, and all the embodiments are regarded as the scope of the present invention described in the specification; moreover, modifications and variations will occur to those skilled in the art in light of the foregoing description, and it is intended to cover all such modifications and variations as fall within the true spirit and scope of the invention as defined by the appended claims.

Claims

1. A novel anti-bias locking screw is characterized in that a fastening rod and an insertion piece are arranged; the insert is sleeved inside the fastening rod; the insert is provided with a push rod and an expansion assembly; the expansion assembly is fixed at the bottom of the push rod, and the push rod drives the expansion assembly to move up and down in the fastening rod; the expansion assembly is provided with a support column, a fitting plate and a spring piece; the top end of the supporting column is fixed at the bottom of the push rod, one end of the spring part is fixed on the outer wall of the supporting column, and the other end of the spring part is fixed on the inner wall of the attaching plate;

2. The novel anti-bias locking screw of claim 1, wherein said fastening rod is hollow; the outer wall of the fastening rod is provided with a first thread structure, the inner wall of the fastening rod is provided with a preset channel, and the preset channel is longitudinally arranged inside the fastening rod.

3. The novel anti-offset locking screw rod according to claim 1, wherein a limiting piece is arranged on the outer edge of the top of the push rod, and a cross-shaped or straight-shaped channel is formed on the upper surface of the limiting piece; the outer edge of locating part and the interior border laminating at anchorage bar top.

4. The novel anti-bias locking screw according to claim 3, wherein the inner edge of the fastening rod is provided with a groove for placing the outer edge of the stopper, and the outer edge of the top of the fastening rod is provided with a placing groove for placing the stopper.

5. The novel anti-bias locking screw according to claim 3, wherein the retaining member is circular and hollow in the middle, and the grooves of the retaining member are on the same straight line.

6. The novel anti-bias lock screw of claim 1, wherein the spring element is a spring plate, said spring plate having an initial state of arcuate compression.