CN218817482U

CN218817482U - Screw with locking and leak protection function

Info

Publication number: CN218817482U
Application number: CN202122656319.8U
Authority: CN
Inventors: 乐健
Original assignee: Shanghai Jucan Precision Hardware Co ltd
Current assignee: Shanghai Jucan Precision Hardware Co ltd
Priority date: 2021-11-02
Filing date: 2021-11-02
Publication date: 2023-04-07
Anticipated expiration: 2031-11-02

Abstract

The utility model relates to a screw technical field just discloses a screw with locking and leak protection function, comprising a main body, the outside fixed cover of main part has cup jointed the sealing washer, the main part tip is provided with the circular slot, the inside cavity that is provided with of main part, the inside glue that has poured into of cavity, cavity one end is through first screw hole and the outside intercommunication of main part, the cavity other end passes through second screw hole and circular slot intercommunication, the trompil has been seted up to first screw hole inner wall, trompil and the outside intercommunication of main part, install the check valve device in the first screw hole, the inside threaded connection of second screw hole has adjusting bolt. This screw with locking and leak protection function twists earlier and moves main part extrusion sealing washer when installation to this realizes the leak protection, then twists and moves adjusting bolt, extrudes glue, and flows into the main part outer wall through the trompil, prevents through glue that the main part from rotating, has avoided not hard up phenomenon, has guaranteed the leak protection effect.

Description

Screw with locking and leak protection function

Technical Field

The utility model relates to a screw technical field specifically is a screw with locking and leak protection function.

Background

The screw is the connecting piece commonly used, and the leak protection screw mainly is applied to electronic equipment, and common leak protection screw is mainly through putting the rubber ring at screw tip cover, extrudees the rubber ring and realizes sealed after the screw is screwed up, but leads to sealed leak protection performance to descend when the screw is not hard up easily in practical application.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a screw with locking and leak protection function possesses locking not hard up, and advantages such as leak protection have solved the problem that leads to sealed leak protection performance to descend easily when present leak protection screw is not hard up.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a screw with locking and leak protection function, includes the main part, the fixed sealing washer that has cup jointed in main part outside, the main part tip is provided with the circular slot, the inside cavity that is provided with of main part, the inside glue that has poured into of cavity, cavity one end is through first screw hole and main part outside intercommunication, the cavity other end passes through second screw hole and circular slot intercommunication, the trompil has been seted up to first screw hole inner wall, trompil and main part outside intercommunication, install the check valve device in the first screw hole, second screw hole internal thread is connected with adjusting bolt.

Preferably, the check valve device comprises a stud, the stud is in threaded connection with the first threaded hole, the stud is close to one end, close to the glue, of the spring, the end part of the spring is fixedly connected with a plug, the spring extrudes the plug, the plug is abutted to the left side of the cavity, and therefore the glue cannot overflow outwards when the glue is in the cavity.

Preferably, an inner hexagonal groove is formed in one end, far away from the spring, of the stud, and the stud can be detached and installed by inserting an inner hexagonal bolt into the inner hexagonal groove.

Preferably, the diameter of the cross section of the first threaded hole is larger than that of the cross section of the cavity, and the plug can move left and right in the threaded hole.

Preferably, the sealing washer is made by the rubber material, the main part surface is provided with the ring channel, the sealing washer inner wall is provided with annular convex block, annular convex block and ring channel match, through setting up ring channel and annular convex block, can carry on spacingly to the sealing washer, avoid the sealing washer to remove at will.

Preferably, the inner wall of the left side of the cavity is provided with an auxiliary sealing ring, the auxiliary sealing ring abuts against the side surface of the plug, and the sealing effect of the plug when the cavity is plugged can be improved through the mutual matching of the sealing ring and the plug.

Compared with the prior art, the utility model provides a screw with locking and leak protection function possesses following beneficial effect:

this screw with locking and leak protection function twists earlier and moves main part extrusion sealing washer when installation to this realizes the leak protection, then twists and moves adjusting bolt, extrudes glue, and flows into the main part outer wall through the trompil, prevents through glue that the main part from rotating, has avoided not hard up phenomenon, has guaranteed the leak protection effect.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the check valve device of the present invention;

fig. 3 is a schematic view of the structure of the opening of the present invention.

Wherein: 1. a main body; 2. a seal ring; 3. a circular groove; 4. glue; 5. a first threaded hole; 6. a second threaded hole; 7. opening a hole; 8. adjusting the bolt; 9. a stud; 10. a spring; 11. a plug; 12. an inner hexagonal groove; 13. and (5) an auxiliary sealing ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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.

Referring to fig. 1-3, a screw with anti-loosening and anti-leakage functions comprises a main body 1, wherein threads are arranged on the outer surface of the main body 1, the main body 1 can be installed through a wrench, a sealing ring 2 is fixedly sleeved on the outer portion of the main body 1, the sealing ring 2 is made of rubber, an annular groove is arranged on the surface of the main body 1, an annular bump is arranged on the inner wall of the sealing ring 2, the sealing ring 2 can be limited by arranging the annular groove and the annular bump, the sealing ring 2 is prevented from moving randomly, the annular bump is matched with the annular groove, a circular groove 3 is arranged at the end portion of the main body 1, the size of the circular groove 3 is matched with that of the end portion of an adjusting bolt 8, the adjusting bolt 8 is screwed to be accommodated into the circular groove 3 in actual operation, a cavity is arranged in the main body 1, glue 4 is poured in the cavity, one end of the cavity is communicated with the outer portion of the main body 1 through a first threaded hole 5, and the diameter of the first threaded hole 5 is larger than that of the cavity, the other end of the cavity is communicated with the circular groove 3 through a second threaded hole 6, the inner wall of a first threaded hole 5 is provided with an opening 7, the opening 7 is communicated with the outside of the main body 1, a check valve device is installed in the first threaded hole 5, glue 4 is poured into the cavity in actual production, then a stud 9 is screwed into the first threaded hole 5 through an inner hexagonal bolt, the glue 4 is blocked through a plug 11, the check valve device comprises a stud 9, the stud 9 is in threaded connection with the first threaded hole 5, one end, close to the glue 4, of the stud 9 is fixedly connected with a spring 10, the end portion of the spring 10 is fixedly connected with a plug 11, the plug 11 is preferably hemispherical, an arc-shaped surface on the plug 11 is tightly attached to the connection position of the first threaded hole 5 and the cavity, so that blocking is achieved, one end, far away from the spring 10, of the stud 9 is provided with an inner hexagonal groove 12, and the inner hexagonal bolt is inserted into the inner hexagonal groove 12, so that the stud 9 can be detached and installed, the adjusting bolt is connected with the inner thread of the second threaded hole 6, the auxiliary sealing ring 13 is arranged on the inner wall of the left side of the cavity, the auxiliary sealing ring 13 abuts against the side surface of the plug 11, and the sealing effect of the plug when the cavity is plugged can be improved through the mutual matching of the sealing ring 13 and the plug 11.

When using, at first twist main part 1 and install, sealing washer 2 can be squeezed after main part 1 is screwed up to this realization is sealed, later twist adjusting bolt 8, adjusting bolt 8 can extrude inside glue 4 to the inside rotating of cavity, glue 4 makes spring 10 compression and promote end cap 11, can follow end cap 11 edge and flow into first screw hole 5 in, follow the opening part again and flow into main part 1 surface, can improve the compactness that main part 1 connects after glue 4 solidifies, avoid main part 1 gyration not hard up.

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 screw with locking and leak protection function, includes main part (1), its characterized in that: main part (1) external fixation is equipped with sealing washer (2), main part (1) tip is provided with circular slot (3), the inside cavity that is provided with of main part (1), the inside glue (4) that has poured into of cavity, cavity one end is through first screw hole (5) and main part (1) outside intercommunication, the cavity other end passes through second screw hole (6) and circular slot (3) intercommunication, trompil (7) have been seted up to first screw hole (5) inner wall, trompil (7) and main part (1) outside intercommunication, install the check valve device in first screw hole (5), second screw hole (6) inside activity is equipped with adjusting bolt (8).

2. The screw with anti-loose and anti-leakage functions as claimed in claim 1, wherein: the check valve device comprises a stud (9), the stud (9) is in threaded connection with a first threaded hole (5), the stud (9) is close to one end of the glue (4) and is fixedly connected with a spring (10), and the end part of the spring (10) is fixedly connected with a plug (11).

3. The screw with anti-loose and anti-leakage functions as claimed in claim 2, wherein: and one end of the stud (9) far away from the spring (10) is provided with an inner hexagonal groove (12).

4. The screw with anti-loose and anti-leakage functions as claimed in claim 1, wherein: the cross section diameter of the first threaded hole (5) is larger than that of the cavity.

5. The screw with anti-loose and anti-leakage functions as claimed in claim 1, wherein: the sealing ring (2) is made of rubber materials, an annular groove is formed in the surface of the main body (1), an annular convex block is arranged on the inner wall of the sealing ring (2), and the annular convex block is matched with the annular groove.

6. The screw with anti-loose and anti-leakage functions as claimed in claim 1, wherein: an auxiliary sealing ring (13) is arranged on the inner wall of the left side of the cavity, and the auxiliary sealing ring (13) is abutted against the side surface of the plug (11).