CN217582795U

CN217582795U - Hollow bolt

Info

Publication number: CN217582795U
Application number: CN202220421677.2U
Authority: CN
Inventors: 李君华; 姜岳萍; 林祝峰
Original assignee: Wenzhou Zhoutai Hardware Manufacturing Co ltd
Current assignee: Wenzhou Zhoutai Hardware Manufacturing Co ltd
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2022-10-14
Anticipated expiration: 2032-02-28

Abstract

The utility model belongs to the technical field of the bolt and specifically relates to a hollow bolt is related to, it is including the main part, run through in the main part and be used for the cavity that supplies liquid to flow through, be provided with the screw thread on the main part lateral wall, the main part tip is provided with extends the ring, it extends the screw thread ring to extend to be provided with on the ring, extend and be provided with the screw thread that is connected with the screw thread on the main part lateral wall on the screw thread ring. This application has the effect of the scope of the pipeline of the different thickness of hollow bolt adaptation of expansion.

Description

Hollow bolt

Technical Field

The application relates to the field of bolts, in particular to a hollow bolt.

Background

As the industry has developed more and more, the demand for fasteners has increased, and bolts have been increasingly used as one of the fasteners.

The bolt is usually a solid structure, and when connecting the pipeline, the solid bolt is usually connected on the lateral wall of the pipeline, and if the pipeline generates heat during operation, the solid bolt may be damaged due to uneven heating, and under the working condition, the hollow bolt is produced. The hollow bolt is provided with a hollow cavity in a penetrating manner, the hollow bolt can be directly connected inside the pipeline, and liquid in the pipeline also directly flows through the hollow cavity in the hollow bolt.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: the hollow bolts of the same type are generally the same length, so that the hollow bolts of the same type are difficult to adapt to pipelines with different thicknesses.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem that the hollow bolt of same model is difficult to the different pipeline of adaptation thickness, this application provides a hollow bolt.

The application provides a hollow bolt adopts following technical scheme:

the utility model provides a hollow bolt, including the main part, run through in the main part and be used for supplying the cavity that liquid flowed through, be provided with the screw thread on the main part lateral wall, the main part tip is provided with extends the ring, it extends the threaded ring to be provided with on the ring to extend, extend and be provided with the screw thread that is connected with the screw thread on the main part lateral wall on the threaded ring.

Through adopting above-mentioned technical scheme, when the length of main part is too short and be difficult to the thick pipeline of adaptation thickness, the staff can install the extension screw ring on the extension ring, and the screw thread that extends on the screw ring lateral wall this moment is connected with the screw thread on the main part lateral wall to length and the screw thread to the main part have been prolonged, make the main part can adapt the thick pipeline of thickness, have enlarged the scope of the different thickness's that the main part can adapt the pipeline, have made things convenient for staff's operation.

Optionally, be provided with the joint piece on the extension ring lateral wall, be provided with the groove of stepping down on the extension screw ring inner wall, be provided with the elastic ring on the inslot wall of stepping down, the elastic ring is used for the joint between joint piece and main part lateral wall.

By adopting the technical scheme, when the extension threaded ring is completely installed on the extension ring, the elastic ring can be clamped between the clamping block and the side wall of the main body, so that the extension threaded ring is difficult to displace in the direction away from the main body, the probability of separation of the extension threaded ring from the extension ring due to misoperation of workers or external environment external force is reduced, and the stability of the extension threaded ring is improved; through setting up the elastic ring at the inslot of stepping down for the elastic ring lateral wall with extend threaded ring inner wall parallel and level, reduced because of the thickness of elastic ring and lead to extending the probability that the threaded ring is difficult to install on extending the ring, make staff's installation more smooth and easy.

Optionally, the number of joint piece is three at least, and is a plurality of the joint piece is the circumference and encircles and distribute on extending the ring lateral wall, and is a plurality of the joint piece is contradicted the joint and is surrounded on same elastic ring.

Through adopting above-mentioned technical scheme, carry out the joint to same elastic ring through three joint piece jointly for the joint piece will extend the power homodisperse of screw thread ring and become the triplex, reduced the power that single joint piece received, thereby improved the upper limit of the power that the joint piece can bear, improved the spacing effect of joint piece to extending the screw thread ring.

Optionally, an inclined surface is arranged on the side wall of the clamping block, and the inclined surface is inclined along the direction in which the extension threaded ring is mounted on the extension ring.

Through adopting above-mentioned technical scheme, when the staff will extend the screw ring and install when extending the ring, the elastic ring will be extruded under the effect on inclined plane, when the staff will extend the screw ring and install completely and extend the ring on, the elastic ring will resume to pop out under the effect of self elasticity to make the elastic ring joint on the lateral wall on the inclined plane back to the joint piece, make the process of elastic ring joint on the joint piece more smooth and easy, made things convenient for staff's operation.

Optionally, the extension ring is further disposed on an inner wall of the extension threaded ring, and the inner wall of the extension ring on the extension threaded ring is flush with the inner wall of the extension ring on the body.

Through adopting above-mentioned technical scheme, through set up the extension ring on the inner wall that extends the screw thread ring for when staff still need extend the main part, the staff can install another extension screw thread ring on the extension screw thread ring of installing in the main part and encircle, thereby make the length of main part continue the extension, further enlarged the scope that the main part can the different thickness's of adaptation pipeline.

Optionally, a sealing layer is disposed on the side wall of the extension ring, and the sealing layer is used for abutting against the side wall of the adjacent extension ring.

Through adopting above-mentioned technical scheme, through set up the sealing layer on extending the ring lateral wall, when the staff will extend the screw ring and install completely on extending the ring, the sealing layer will be contradicted with the lateral wall of adjacent extension ring and laminate to extending ring and adjacent extending and having played sealed effect between the ring, reduced the probability that the medium that flows through in the cavity spills from the gap between two adjacent extension ring lateral walls.

Optionally, the elastic ring is further used for abutting against the side wall of the extension ring.

Through adopting above-mentioned technical scheme, contradict the laminating on extending the ring lateral wall through the lateral wall with the elastic ring, further reduced the probability that the medium that flows through in the cavity spills from the gap between two adjacent extension ring lateral walls, improved the leakproofness between the adjacent extension ring.

Optionally, chamfers are arranged on the inner walls of the end parts of the two ends of the cavity, and the chamfers face the outside of the cavity.

Through adopting above-mentioned technical scheme, through setting up the chamfer on cavity both ends tip inner wall for when the medium in the pipeline got into the cavity, the medium will be along with the guide entering cavity of chamfer in, reduced the probability that the medium impacted main part lateral wall, improved the life of main part.

In summary, the present application includes at least one of the following beneficial technical effects:

the length and the screw thread of the main body are prolonged, so that the main body can be adapted to a thick pipeline, the range of the pipeline with different thicknesses, which can be adapted to the main body, is enlarged, and the operation of workers is facilitated.

The probability that the extension threaded ring is difficult to mount on the extension ring due to the thickness of the elastic ring is reduced, so that the mounting of workers is smoother, and the probability that media flowing through the cavity leak out from a gap between the side walls of two adjacent extension rings is reduced.

Drawings

Fig. 1 is a schematic view of the overall structure of a hollow bolt according to an embodiment of the present application.

Fig. 2 is a schematic diagram of the exploded structure of fig. 1.

Fig. 3 isbase:Sub>A schematic sectional view taken along linebase:Sub>A-base:Sub>A in fig. 1.

Fig. 4 is an enlarged schematic view of B in fig. 3.

Description of reference numerals: 1. a main body; 11. a cavity; 2. an extension ring; 21. an extended threaded ring; 3. a clamping block; 31. a yielding groove; 32. an elastic ring; 33. a bevel; 4. a sealing layer; 41. and (7) chamfering.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a hollow bolt. Referring to fig. 1 and 2, the hollow bolt includes a main body 1, a cavity 11 for liquid to flow through is penetrated through the main body 1, the cavity 11 penetrates along the length direction of the main body 1, chamfers 41 are respectively arranged on the inner walls of the end parts of the two ends of the cavity 11, and the chamfers 41 face the outside of the cavity 11. Set up the screw thread on 1 lateral wall of main part, the screw thread extends along the length direction of main part 1, and fixedly connected with extends ring 2 on 1 tip lateral wall of main part, extends 2 inner walls of ring and 1 inner wall parallel and level of main part, and the thickness that extends ring 2 is less than the thickness of main part 1, extends and sets up the screw thread on 2 lateral walls of ring, and the screw thread extends along the length direction who extends ring 2.

Referring to fig. 2 and 3, the outer side wall of the extension ring 2 is connected with an extension threaded ring 21 through a thread, the inner wall of the extension threaded ring 21 is provided with a thread so that the extension threaded ring 21 is connected to the outer side wall of the extension ring 2 through a thread, the outer side wall of the extension threaded ring 21 is also provided with a thread, the thread extends along the length direction of the extension threaded ring 21, and the thread on the extension threaded ring 21 is connected to the thread on the outer side wall of the main body 1.

Referring to fig. 2 and 4, the end portion, close to the main body 1, of the outer side wall of the extension ring 2 is fixedly connected with three clamping blocks 3, the three clamping blocks 3 are circumferentially and uniformly distributed on the extension ring 2, an inclined surface 33 is arranged on the side wall, back to the main body 1, of each clamping block 3, and the inclined surface 33 inclines in the direction of turning to the extension ring 2 along the extension threaded ring 21.

Referring to fig. 4, the inner wall of the extension threaded ring 21 close to the main body 1 is provided with a relief groove 31, and the relief groove 31 is circumferentially arranged on the inner wall of the extension threaded ring 21. An elastic ring 32 is fixedly connected to the inner wall of the abdicating groove 31, and the elastic ring 32 circumferentially surrounds the inner wall of the abdicating groove 31. Elastic ring 32 contradicts the laminating simultaneously on the lateral wall of 3 back of the body inclined planes 33 of joint piece, and elastic ring 32 contradicts the laminating on 2 lateral walls of extension ring on main part 1, and elastic ring 32 joint is between joint piece 3 and main part 1 lateral wall, and elastic ring 32 adopts waterproof corrosion resistant flexible material to make in this embodiment.

Referring to fig. 3 and 4, the extension ring 2 is further fixedly connected to the end of the inner wall of the extension threaded ring 21 far away from the main body 1, the inner wall of the extension ring 2 on the extension threaded ring 21 is flush with the inner wall of the extension ring 2 on the main body 1, and the thickness of the extension ring 2 plus the thickness of the extension threaded ring 21 is equal to the thickness of the main body 1.

Referring to fig. 4, a sealing layer 4 is fixedly connected to a side wall of the extension ring 2 facing the main body 1 on the extension threaded ring 21, the sealing layer 4 is circumferentially and circumferentially fixed on a side wall of the extension ring 2, and the sealing layer 4 is used for abutting against a side wall of another adjacent extension ring 2.

The implementation principle of a hollow bolt in the embodiment of the application is as follows: when the length of the main body 1 is too short to adapt to a pipeline with a thick thickness, a worker can screw the extension threaded ring 21 on the extension ring 2 on the main body 1, at the moment, the elastic ring 32 firstly abuts against the inclined surface 33, when the worker continues to rotate the extension threaded ring 21, the elastic ring 32 is extruded under the guidance of the inclined surface 33, and when the worker fully screw the extension threaded ring 21 on the extension ring 2, the elastic ring 32 is ejected to abut against the side wall of the clamping block 3 back to the inclined surface 33.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a hollow bolt, including main part (1), run through on main part (1) and be used for supplying cavity (11) that liquid flowed through, be provided with screw thread, its characterized in that on main part (1) lateral wall: the improved structure is characterized in that an extension ring (2) is arranged at the end of the main body (1), an extension threaded ring (21) is arranged on the extension ring (2), and threads connected with the threads on the outer side wall of the main body (1) are arranged on the extension threaded ring (21).

2. A hollow bolt as claimed in claim 1, wherein: extend and be provided with joint piece (3) on ring (2) lateral wall, be provided with groove of stepping down (31) on extending screw ring (21) inner wall, be provided with elastic ring (32) on groove of stepping down (31) inner wall, elastic ring (32) are used for the joint between joint piece (3) and main part (1) lateral wall.

3. A hollow bolt as claimed in claim 2, wherein: the quantity of joint piece (3) is three at least, and is a plurality of joint piece (3) are circumference and encircle to distribute on extension ring (2) lateral wall, and a plurality of joint piece (3) conflict joint is on same elastic ring (32).

4. A hollow bolt as claimed in claim 2, wherein: the side wall of the clamping block (3) is provided with an inclined surface (33), and the inclined surface (33) is inclined along the direction of the extension threaded ring (21) mounted on the extension ring (2).

5. A hollow bolt as claimed in claim 1, wherein: the extension ring (2) is further arranged on the inner wall of the extension threaded ring (21), and the inner wall of the extension ring (2) on the extension threaded ring (21) is flush with the inner wall of the extension ring (2) on the main body (1).

6. A hollow bolt as claimed in claim 1, wherein: the extension ring is characterized in that a sealing layer (4) is arranged on the side wall of the extension ring (2), and the sealing layer (4) is used for abutting against the side wall of the adjacent extension ring (2).

7. A hollow bolt as claimed in claim 2, wherein: the elastic ring (32) is also used for abutting against the side wall of the extension ring (2).

8. A hollow bolt as claimed in claim 1, wherein: all be provided with chamfer (41) on cavity (11) both ends tip inner wall, chamfer (41) are outside towards cavity (11).