CN217682754U

CN217682754U - Self-tapping screw with protective effect

Info

Publication number: CN217682754U
Application number: CN202221235480.6U
Authority: CN
Inventors: 戴美华
Original assignee: Zhejiang Shuguang Automotive Standard Part Co ltd
Current assignee: Zhejiang Shuguang Automotive Standard Part Co ltd
Priority date: 2022-05-19
Filing date: 2022-05-19
Publication date: 2022-10-28
Anticipated expiration: 2032-05-19

Abstract

The utility model relates to a self tapping screw technical field specifically is a self tapping screw with protective effect, including connecting block, coupling mechanism and protective housing, the connecting block bottom is equipped with first threaded rod, the opening has been seted up on the protective housing, the protective housing top is equipped with the rubber sleeve, coupling mechanism includes thread groove, second threaded rod, go-between and haulage rope, the thread groove is seted up the connecting block bottom, the second threaded rod with thread groove threaded connection, second threaded rod bottom with the go-between is connected, haulage rope one end with protective housing fixed connection, the inside bottom of protective housing is equipped with the cushion, the utility model relates to a self tapping screw with protective effect has solved present equipment and has not had protector's problem.

Description

Self-tapping screw with protective effect

Technical Field

The utility model relates to a self tapping screw technical field specifically is a self tapping screw with protecting effect.

Background

As is well known, the self-tapping screw is used for nonmetal or softer metal without drilling and tapping, and is pointed, so that the common self-tapping screw is flat and uniform in thickness, and has a very important function.

The existing equipment is not provided with a protection device, and workers are easily pricked by a sharp head at the bottom of the self-tapping screw.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a self tapping screw with protecting effect has solved the problem that present equipment does not have protector.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a self tapping screw with protective effect, includes connecting block, coupling mechanism and protective housing, the connecting block bottom is equipped with first threaded rod, the opening has been seted up on the protective housing, the protective housing top is equipped with the rubber sleeve, coupling mechanism includes thread groove, second threaded rod, go-between and haulage rope, the thread groove is seted up the connecting block bottom, the second threaded rod with thread groove threaded connection, second threaded rod bottom with the go-between is connected, haulage rope one end with protective housing fixed connection, the inside bottom of protective housing is equipped with the cushion.

In order to improve the intensity of protective housing, the utility model discloses improve and have, the inside material of protective housing is by interior basic unit, plastic layer, fire-retardant layer and wearing layer of including in proper order outside to, basic unit one end with plastic layer one end is connected, the plastic layer other end with fire-retardant layer one end is connected, fire-retardant layer other end with wearing layer one end is connected.

In order to improve the strength of the body, the utility model discloses the improvement has, the plastic layer adopts the LCP material.

In order to improve the effect of connecting, the utility model discloses the improvement has, the thread groove with second threaded rod phase-match.

In order to improve the wear-resistant effect, the utility model discloses the improvement has, the wear-resistant layer surface is equipped with wear-resisting line, wear-resisting line is equipped with a plurality of.

In order to improve the effect of connecting, the utility model discloses the improvement has, the cushion bottom with the inside bottom fixed connection of protective housing.

(III) advantageous effects

Compared with the prior art, the utility model provides a self tapping screw with protecting effect possesses following beneficial effect:

this self tapping screw with protective effect, through setting up first threaded rod inside the protective housing, can prevent when not using the body, the staff is pricked by the bottom of first threaded rod carelessly when picking up the body, be connected protective housing and connecting block through coupling mechanism, tight cover of rubber sleeve on the cooperation protective housing is on first threaded rod, can prevent that the protective housing from dropping from first threaded rod, when wanting to use the body, at first the staff takes the body to appointed position, then dismantle the haulage rope from the first threaded rod, then pull the rubber sleeve with strength, make rubber sleeve atress take place deformation, thereby make rubber sleeve no longer tight butt on first threaded rod, thereby take out the protective housing, thereby take out the second threaded rod in the thread groove, then can use, the inside cushion of protective housing can prevent first threaded rod bottom and protective housing inner wall contact, through the go-between of adoption LCP material in the basic unit, can improve the intensity of protective housing, can realize fire-retardant effect through fire-retardant coating, can realize wear resistant effect through the wearing layer.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a portion of the enlarged structure of FIG. 1;

fig. 3 is a schematic diagram of the internal material structure of the protective shell in fig. 1 according to the present invention.

In the figure: 1. connecting blocks; 2. a first threaded rod; 3. a protective shell; 4. an opening; 5. a rubber sleeve; 6. cushion blocks; 7. a connecting mechanism; 8. a thread groove; 9. a second threaded rod; 10. a connecting ring; 11. a hauling rope; 12. a base layer; 13. a plastic layer; 14. a flame retardant layer; 15. and a wear-resistant layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Examples

Please refer to fig. 1-3, a self tapping screw with protection effect, includes connecting block 1, coupling mechanism 7 and

protective housing

3, 1 bottom of connecting block is equipped with first threaded rod 2, opening 4 has been seted up on the

protective housing

3, 3 tops of protective housing are equipped with rubber sleeve 5, coupling mechanism 7 includes thread groove 8, second threaded rod 9, go-between 10 and haulage rope 11, thread groove 8 sets up 1 bottom of connecting block, second threaded rod 9 with 8 threaded connection of thread groove, 9 bottoms of second threaded rod with go-between 10 is connected, haulage rope 11 one end with 3 fixed connection of protective housing, 3 inside bottoms of protective housing are equipped with cushion 6.

Further, the inside material of protective housing 3 is by interior to including basic unit 12, plastic layer 13, fire-retardant layer 14 and wearing layer 15 outward in proper order, can improve the intensity of protective housing 3, basic unit 12 one end with plastic layer 13 one end is connected, the plastic layer 13 other end with 14 one end on fire-retardant layer is connected, the 14 other end on fire-retardant layer with 15 one end on wearing layer are connected.

Further, the plastic layer 13 is made of LCP, so that the strength of the protective shell 3 can be improved.

Further, the thread groove 8 is matched with the second threaded rod 9, so that the connection effect can be improved.

In this embodiment, the surface of the wear-resistant layer 15 is provided with a plurality of wear-resistant lines, so that the wear-resistant effect can be improved.

In this embodiment, the bottom of the cushion block 6 is fixedly connected with the bottom end inside the protective shell 3, so that the connection effect can be improved.

To sum up, the working principle and the working process of the self-tapping screw with the protection effect are that, by arranging the first threaded rod 2 inside the protective shell 3, the self-tapping screw can be prevented from being used when the self-tapping screw is not used, a worker carelessly pricks the bottom of the first threaded rod 2 when picking up the self-tapping screw, the protective shell 3 is connected with the connecting block 1 through the connecting mechanism 7, the rubber sleeve 5 on the protective shell 3 is tightly sleeved on the first threaded rod 2, the protective shell 3 can be prevented from falling off from the first threaded rod 2, when the self-tapping screw is wanted to be used, firstly, the worker takes the body to a specified position, then the traction rope 11 is detached from the connecting ring 10 (the traction rope 11 is tied on the connecting ring 10, so that the traction rope 11 can be detached from the connecting ring 10), then, the rubber sleeve 5 is forcibly pulled, the rubber sleeve 5 is deformed, so that the rubber sleeve 5 is not tightly abutted on the first threaded rod 2, the protective shell 3 is taken out, then the second threaded rod 9 is taken out of the thread groove 8, then the self-tapping screw can be used, the self-tapping screw with the protective shell 3 can prevent the inner wall 2 from being contacted with the inner wall of the first threaded rod 2, the wear-resistant layer 12, the wear-resistant layer 14 can improve the wear-resistant effect, and the wear-resistant effect of the wear-resistant layer can be realized through the LCP layer 13.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a self tapping screw with safeguard effect, includes connecting block (1), coupling mechanism (7) and protective housing (3), its characterized in that: connecting block (1) bottom is equipped with first threaded rod (2), opening (4) have been seted up on protective housing (3), protective housing (3) top is equipped with rubber sleeve (5), coupling mechanism (7) are including thread groove (8), second threaded rod (9), go-between (10) and haulage rope (11), thread groove (8) are seted up connecting block (1) bottom, second threaded rod (9) with thread groove (8) threaded connection, second threaded rod (9) bottom with go-between (10) are connected, haulage rope (11) one end with protective housing (3) fixed connection, the inside bottom of protective housing (3) is equipped with cushion (6).

2. A self-tapping screw having a protective effect as claimed in claim 1, wherein: the protective housing (3) is characterized in that the inner material of the protective housing comprises a base layer (12), a plastic layer (13), a flame-retardant layer (14) and a wear-resistant layer (15) from inside to outside in sequence, one end of the base layer (12) is connected with one end of the plastic layer (13), the other end of the plastic layer (13) is connected with one end of the flame-retardant layer (14), and the other end of the flame-retardant layer (14) is connected with one end of the wear-resistant layer (15).

3. A self-tapping screw having a shielding effect as set forth in claim 2, wherein: the plastic layer (13) is made of LCP materials.

4. A self-tapping screw having a protective effect as claimed in claim 3, wherein: the thread groove (8) is matched with the second threaded rod (9).

5. A self-tapping screw having a shielding effect as set forth in claim 4, wherein: the surface of the wear-resistant layer (15) is provided with wear-resistant lines, and the wear-resistant lines are provided with a plurality of lines.

6. A self-tapping screw having a shielding effect as set forth in claim 5, wherein: the bottom of the cushion block (6) is fixedly connected with the bottom end inside the protective shell (3).