CN219345215U

CN219345215U - Stainless steel screw capable of increasing fastening performance

Info

Publication number: CN219345215U
Application number: CN202223493338.4U
Authority: CN
Inventors: 俞池清
Original assignee: Suzhou Guangxuan Fastener Co ltd
Current assignee: Suzhou Guangxuan Fastener Co ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-07-14
Anticipated expiration: 2032-12-27

Abstract

The utility model discloses a stainless steel screw capable of increasing fastening performance, which comprises a screw body and a screw cap which are integrally arranged, wherein the end part, far away from the screw cap, of the screw body is connected with a self-tapping component, an auxiliary fastening through hole is formed in the screw body along an axis, the auxiliary fastening through hole penetrates through the screw cap, an auxiliary fastening component is connected in the auxiliary fastening through hole in a sliding manner, the auxiliary fastening component comprises a plug rod, the plug rod is inserted into the inner side of the auxiliary fastening through hole, a pop-up auxiliary fastening piece is arranged on the side wall of one end part of the plug rod, a fastening nut is connected on the screw body in a threaded manner, the pop-up auxiliary fastening piece comprises a fastening block and a compression spring, and a containing groove for the fastening block to slide is formed in the side end of the plug rod. The auxiliary fastening through hole, the auxiliary fastening component and the fastening nut are arranged, so that the problem of screw falling can be effectively avoided, the effect of fixing the screw from one side of the connected object can be realized, and the use is more convenient.

Description

Stainless steel screw capable of increasing fastening performance

Technical Field

The utility model relates to the technical field of screws, in particular to a stainless steel screw capable of improving fastening performance.

Background

The screw refers to a screw, which is a tool for fastening a machine part step by utilizing the physical and mathematical principles of the inclined plane circular rotation and friction force of an object. Stainless steel screws are a common fastener, are widely used in machinery, electric appliances and buildings, are generally made of metal or plastic, are cylindrical in shape, and are provided with concave-convex grooves on the surfaces, which are called threads.

The existing stainless steel screw has certain defects when in use, namely the stability of the stainless steel screw is poor when in use, so that the situation that the stainless steel screw is loosened and falls off easily occurs in the use process, in addition, the existing screw is generally screwed into the screw from one side of a connected object, and then is screwed into the nut from the other side for stability, and the two-side fixing operation is complicated.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a stainless steel screw with increased fastening performance.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the stainless steel screw capable of improving the fastening performance comprises a screw body and a screw cap which are integrally arranged, wherein the end part, far away from the screw cap, of the screw body is connected with a self-tapping component, an auxiliary fastening through hole is formed in the screw body along the axis, the auxiliary fastening through hole penetrates through the screw cap, and an auxiliary fastening component is connected in the auxiliary fastening through hole in a sliding manner;

the auxiliary fastening component comprises a plug rod, the plug rod is inserted into the inner side of the auxiliary fastening through hole, and a side wall of one end part of the plug rod is provided with a pop-up auxiliary fastening piece;

and the screw body is in threaded connection with a fastening nut.

Preferably, the pop-up auxiliary fastener comprises a fastening block and a compression spring, the side end of the inserted rod is provided with a containing groove for the fastening block to slide, and the fastening block is fixedly connected with the inner wall of the containing groove through the compression spring.

Preferably, the fastening block is provided with rounded corners near the free end edges of the self-tapping members.

Preferably, an auxiliary positioning member is connected to an end of the plunger remote from the pop-up auxiliary fastener.

Preferably, the auxiliary positioning member comprises a positioning block fixedly connected with the end part of the inserted link, and the nut is provided with a positioning groove matched with the positioning block.

Preferably, the upper end of the positioning block is fixedly connected with a pull ring.

Preferably, the diameter of the fastening nut is larger than the diameter of the nut.

Preferably, the self-tapping component comprises a self-tapping conical head and a fixed block, the fixed block is fixedly connected with the self-tapping conical head and in clearance fit with an auxiliary fastening through hole, a limiting block is arranged at the side end of the fixed block in a symmetrical and integrated mode, a limiting groove for clearance fit of the limiting block is formed in the inner wall of the auxiliary fastening through hole, and an extension spring is fixedly connected between the limiting block and the inner wall of the limiting groove.

Compared with the prior art, the utility model provides the stainless steel screw with the fastening performance increased, which has the following beneficial effects:

1. through set up supplementary fastening through-hole at the screw rod main part along the axle center to sliding connection includes the supplementary fastening member of inserted bar and pop-up supplementary fastener in supplementary fastening through-hole, runs through to supplementary fastening through-hole opposite side when the inserted end of inserted bar, and the outside pop-up supplementary fastener pops out and fixes the opposite side at the connected article, can play the effect that prevents the screw and drop.

2. Through threaded connection fastening nut on the screw rod main part, the outside of pop-up auxiliary fastening piece pops out and fixes behind the opposite side of being connected the article, twists and moves fastening nut and make it hug closely by the surface of being connected the article, combines the stable fixed effect of being connected the article of pop-up auxiliary fastening piece, can realize from being connected article one side set screw, and it is more convenient to use.

3. The end part of the inserted link, which is far away from the pop-up auxiliary fastener, is connected with the auxiliary positioning component comprising the positioning block, and the nut is provided with the positioning groove matched with the positioning block, so that the positioning block is aligned to the positioning groove for insertion, and the pop-up auxiliary fastener on the inserted link can be ensured to pop-up outwards smoothly.

The device has the advantages that the parts which are not involved in the device are the same as or can be realized by adopting the prior art, the problem of screw falling can be effectively avoided through the arrangement of the auxiliary fastening through hole, the auxiliary fastening component and the fastening nut, the effect of fixing the screw from one side of the connected object can be realized, and the use is more convenient.

Drawings

FIG. 1 is a schematic view showing the overall structure of a stainless steel screw with increased tightening performance according to the present utility model;

fig. 2 is a schematic structural view of a stainless steel screw in a fastened state, which can increase fastening performance;

FIG. 3 is a schematic diagram of the structure shown at A in FIG. 2;

fig. 4 is a schematic view showing a structure of a stainless steel screw with a broken-away screw body, which is capable of increasing fastening performance;

fig. 5 is a schematic structural view of an auxiliary fastener for a stainless steel screw with increased fastening performance according to the present utility model.

In the figure: 1. a screw body; 2. a screw cap; 3. a self-tapping member; 301. self-tapping cone head; 302. a fixed block; 303. a limiting block; 304. a tension spring; 305. a limit groove; 4. an auxiliary fastening member; 401. a rod; 402. a storage groove; 403. a fastening block; 404. a compression spring; 5. an auxiliary positioning member; 501. a positioning block; 502. a positioning groove; 6. a pull ring; 7. a fastening nut; 8. and the auxiliary fastening through holes.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

In the description of this patent, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the terms in this patent will be understood by those of ordinary skill in the art as the case may be.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1-5, a stainless steel screw capable of increasing fastening performance comprises a screw body 1 and a nut 2 which are integrally arranged, wherein the end part of the screw body 1 far away from the nut 2 is connected with a self-tapping member 3, the screw body 1 is provided with an auxiliary fastening through hole 8 along the axis, the auxiliary fastening through hole 8 penetrates through the nut 2, the self-tapping member 3 comprises a self-tapping cone head 301 and a fixed block 302, the fixed block 302 is fixedly connected with the self-tapping cone head 301 and is in clearance fit with the auxiliary fastening through hole 8, the side end of the fixed block 302 is symmetrically and integrally provided with a limiting block 303, and the inner wall of the auxiliary fastening through hole 8 is provided with a limiting groove 305 for the clearance fit of the limiting block 303 so as to ensure that the self-tapping member 3 cannot rotate in situ when penetrating an object; a tension spring 304 is fixedly connected between the limiting block 303 and the inner wall of the limiting groove 305, and an auxiliary fastening member 4 is slidingly connected in the auxiliary fastening through hole 8;

the auxiliary fastening member 4 comprises a plug rod 401, the plug rod 401 is inserted into the inner side of the auxiliary fastening through hole 8, a side wall of one end part of the plug rod 401 is provided with a pop-up auxiliary fastening piece, after the screw rod main body 1 is penetrated through a connected object by the self-tapping member 3, the plug rod 401 is inserted into the auxiliary fastening through hole 8, in the process that the insertion end of the plug rod 401 penetrates to the other side of the auxiliary fastening through hole 8, the self-tapping cone head 301 is extruded outwards by extruding the fixing block 302, the self-tapping cone head 301 can not fall off due to the arrangement of the tension spring 304, and when the insertion end of the plug rod 401 penetrates to the other side of the auxiliary fastening through hole 8, the pop-up auxiliary fastening piece is outwards popped up and fixed to the other side of the connected object, so that the screw can be prevented from falling off;

the screw body 1 is connected with the fastening nut 7 in a threaded manner, the diameter of the fastening nut 7 is larger than that of the nut 2, after the screw body 1 penetrates through a connected object by utilizing the self-tapping component 3, the fastening nut 7 is screwed to be tightly attached to the surface of the connected object, the connected object is stably fixed by combining the pop-up auxiliary fastener, the effect of fixing the screw on one side of the connected object can be achieved, and the use is more convenient.

Referring to fig. 5, in the present utility model, the pop-up auxiliary fastener includes a fastening block 403 and a compression spring 404, a receiving groove 402 for sliding the fastening block 403 is provided at a side end of the insert rod 401, the fastening block 403 is fixedly connected to an inner wall of the receiving groove 402 by the compression spring 404, after the screw body 1 is penetrated through a connected object by the self-tapping member 3, the insert rod 401 is inserted into the auxiliary fastening through hole 8, when the insertion end of the insert rod 401 penetrates to the other side of the auxiliary fastening through hole 8, the fastening block 403 pops out under the action of the compression spring 404, the popped fastening block 403 can be fixed at the other side of the connected object, and the combination of the nut 2 and the fastening nut 7 plays a stable fixing role.

Wherein, in order to facilitate the smooth insertion of the insert pin 401 into the auxiliary fastening through hole 8, the fastening block 403 is provided as a rounded corner near the free end edge of the self-tapping member 3.

Referring to fig. 1 and 5, in order to ensure that the pop-up auxiliary fastener on the insert pin 401 is smoothly popped out, an end portion of the insert pin 401 away from the pop-up auxiliary fastener is connected with an auxiliary positioning member 5, the auxiliary positioning member 5 includes a positioning block 501 fixedly connected with the end portion of the insert pin 401, and a positioning groove 502 matched with the positioning block 501 is provided on the nut 2.

Referring to fig. 1 and 5, in order to facilitate the insertion and removal of the auxiliary positioning member 5, a tab 6 is fixedly coupled to the upper end of the positioning block 501.

It should be further noted that, the stainless steel screw is more suitable for screws with larger size, and in the case of connecting objects to be connected, a protective sleeve can be used to cover the end of the self-tapping cone head 301 after the connection is completed, so as to improve the safety.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. Can increase tightening performance's stainless steel screw, including screw rod main part (1) and nut (2) of integration setting, end connection that nut (2) was kept away from to screw rod main part (1) has self-tapping component (3), its characterized in that:

the screw body (1) is provided with an auxiliary fastening through hole (8) along the axis, the auxiliary fastening through hole (8) penetrates through the screw cap (2), and an auxiliary fastening member (4) is connected in the auxiliary fastening through hole (8) in a sliding manner;

the auxiliary fastening member (4) comprises a plug rod (401), the plug rod (401) is inserted into the auxiliary fastening through hole (8), and a pop-up auxiliary fastening piece is arranged on one end side wall of the plug rod (401);

the screw body (1) is connected with a fastening nut (7) in a threaded manner.

2. The stainless steel screw capable of increasing fastening performance according to claim 1, wherein the pop-up auxiliary fastener comprises a fastening block (403) and a compression spring (404), a receiving groove (402) for sliding the fastening block (403) is arranged at the side end of the insert rod (401), and the fastening block (403) is fixedly connected with the inner wall of the receiving groove (402) through the compression spring (404).

3. A stainless steel screw with increased tightening properties according to claim 2, characterized in that the tightening block (403) is provided with rounded corners near the free end edge of the self-tapping member (3).

4. A stainless steel screw with increased tightening performance according to claim 3, characterized in that the end of the spigot (401) remote from the pop-up auxiliary fastener is connected with an auxiliary positioning member (5).

5. The stainless steel screw capable of increasing fastening performance according to claim 4, wherein the auxiliary positioning member (5) comprises a positioning block (501) fixedly connected with the end of the inserting rod (401), and the nut (2) is provided with a positioning groove (502) matched with the positioning block (501).

6. The stainless steel screw capable of improving fastening performance according to claim 5, wherein a pull ring (6) is fixedly connected to the upper end of the positioning block (501).

7. Stainless steel screw with increased tightening properties according to claim 1, characterized in that the tightening nut (7) has a larger diameter than the nut (2).

8. The stainless steel screw capable of increasing fastening performance according to any one of claims 1-6, wherein the self-tapping member (3) comprises a self-tapping conical head (301) and a fixed block (302), the fixed block (302) is fixedly connected with the self-tapping conical head (301) and is in clearance fit with an auxiliary fastening through hole (8), a limiting block (303) is symmetrically and integrally arranged at the side end of the fixed block (302), a limiting groove (305) for the clearance fit of the limiting block (303) is formed in the inner wall of the auxiliary fastening through hole (8), and a tension spring (304) is fixedly connected between the limiting block (303) and the inner wall of the limiting groove (305).