CN213744438U - Stud bolt - Google Patents
Stud bolt Download PDFInfo
- Publication number
- CN213744438U CN213744438U CN202022099298.XU CN202022099298U CN213744438U CN 213744438 U CN213744438 U CN 213744438U CN 202022099298 U CN202022099298 U CN 202022099298U CN 213744438 U CN213744438 U CN 213744438U
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- China
- Prior art keywords
- thread section
- flaring
- thread
- screw thread
- straight
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Abstract
The utility model provides a stud belongs to machinery. This stud includes the axle form body, the one end of body is link one, the other end is link two, link one and link two go up all to have straight screw thread section and flaring screw thread section, straight screw thread section is equal diameter screw thread section and the outer end is originated in this end of the body, flaring screw thread section outer end is originated in straight screw thread section inner, flaring screw thread section path is crescent from outer end to inner, flaring screw thread section major diameter is the same with straight screw thread section major diameter, the reset screw thread section has between the body both ends, reset screw thread section and equal diameter of straight screw thread section, the reset screw thread section is located between two flaring screw thread sections. This stud has solved the easy not hard up scheduling problem behind the current stud connection.
Description
Technical Field
The utility model belongs to the field of machinery, a stud is related to.
Background
The stud bolt is one of bolts, as the name suggests, both ends of the stud bolt can realize the spiro union, have wide application in some special connection fields, the stud bolt structure has multiple, such as application number 2016200639306, application date 2016.1.24, the utility model patent of the name a stud bolt, have recorded a stud bolt, including the screw rod, the material that the screw rod adopts is alloy steel, the surface spraying of screw rod has the protective coating, one side of screw rod sets up to the first external screw thread, the other end of screw rod has the second external screw thread, the length of the first external screw thread is greater than the length of the second external screw thread, be provided with the switching piece between first external screw thread and the second external screw thread, the surface of the switching piece is provided with the plate washer; the inner sides of the first external thread and the second external thread are provided with limiting blocks, and the surface of the switching block is provided with protrusions. To the not enough that exists among the prior art, above-mentioned technical scheme provides a stud, and the modern design all has the screw thread through designing into the bolt in both ends, not only strengthens safe stability, and has accelerated the efficiency of installation to solve prior art's defect.
Above-mentioned technical scheme has realized the double-end spiro union, and simple from the single-end spiro union has become the double-end spiro union, has realized the most basic function of stud, but stud still has the easy not hard up problem in practical application.
The present application is proposed to solve the above problems.
Disclosure of Invention
The utility model aims at the above-mentioned problem that exists among the prior art, provide stud, this stud can effectively realize locking performance, has solved the easy not hard up scheduling problem behind the current stud connection.
The purpose of the utility model can be realized by the following technical proposal: the double-ended bolt comprises a shaft-shaped body, wherein one end of the body is a first connecting end, the other end of the body is a second connecting end, and the double-ended bolt is characterized in that the first connecting end and the second connecting end are both provided with a straight thread section and a flaring thread section, the straight thread section is an equal-diameter thread section, the outer end of the flaring thread section starts from the inner end of the straight thread section, the small diameter of the flaring thread section is gradually increased from the outer end to the inner end, the large diameter of the flaring thread section is the same as that of the straight thread section, a resetting thread section is arranged between the two ends of the body, the resetting thread section is equal to that of the straight thread section, and the resetting thread section is positioned between the two flaring thread sections.
The equal diameter of the straight thread section means that the major diameter and the minor diameter of the external thread section on the straight thread section are the same. The straight thread section is used for directly connecting a load, when the load enters the flaring thread section, obvious resistance can be sensed, the rotation force needs to be increased at the moment, and the load internal thread is slightly deformed, so that the load internal thread section is matched with the flaring thread section, after the load is matched with the flaring thread section, the load is continuously matched with the resetting thread section, the resetting thread section and the straight thread section have the same diameter, namely the major diameter of the resetting thread section is the same as the major diameter of the straight thread section, the minor diameter of the resetting thread section is the same as the minor diameter of the straight thread section, and the connection between the stud and the load is realized after the two loads are matched with the resetting thread section. The resistance section design, namely the flaring thread section, is adopted by the stud bolt, the small diameter of the flaring thread section is gradually increased to form a flaring shape, so that the resetting behavior can not occur basically after the internal thread on the load is crossed, and the phenomenon of looseness of the stud bolt is fundamentally avoided.
In the stud bolt, the thread section of the flaring thread section is in a right-angled triangle shape.
The shape enables the load to be fully deformed when moving on the flaring thread section, so that the resetting can not be realized, and the stability is strong.
In the above stud bolt, the straight thread segments are longer than the flared thread segments.
Too long a flared thread segment may result in increased difficulty in mating with the load.
In the stud bolt, annular reset gaps are formed between the reset thread section and the two flaring thread sections.
After the load is matched with the flaring thread section, the reset gap can provide a deformation space for the deformation reset of the load, so that the screwing of the load and the resetting thread section can be realized.
In the stud bolt, the width of the reset gap is not less than 5 mm.
This range can provide a sufficient deformation distance for load deformation.
Compared with the prior art, the stud bolt has the following advantages:
1. the resistance section design, namely the flaring thread section, is adopted by the stud bolt, the small diameter of the flaring thread section is gradually increased to form a flaring shape, so that the resetting behavior can not occur basically after the internal thread on the load is crossed, and the phenomenon of looseness of the stud bolt is fundamentally avoided.
2. The flaring thread section in the stud bolt is designed in a way that the thread section is in a right-angled triangle. The shape enables the load to be fully deformed when moving on the flaring thread section, so that the resetting can not be realized, and the stability is strong.
3. This stud through the clearance design that resets, after messenger's load and flaring screw thread section cooperation, the clearance that resets can reset for the deformation of load provides the deformation space to can realize the spiro union of load and the section of resetting screw.
Drawings
Fig. 1 is a structural sectional view of the present stud bolt.
Fig. 2 is an enlarged view of a structure of a region a in fig. 1.
List of reference numerals
In the figure, 1, a body;
1a, a first connecting end;
1b, a second connecting end;
1c, straight thread sections;
1d, flaring thread sections;
1e, resetting the thread section;
1f, a reset gap;
Detailed Description
As shown in fig. 1 to 2, the stud bolt includes a shaft-shaped body 1, one end of the body 1 is a first connecting end 1a, the other end is a second connecting end 1b, the first connecting end 1a and the second connecting end 1b both have a straight thread section 1c and a flaring thread section 1d, the straight thread section 1c is a constant diameter thread section, the outer end of the flaring thread section 1d starts from the inner end of the straight thread section 1c, the diameter of the flaring thread section 1d gradually increases from the outer end to the inner end, the diameter of the flaring thread section 1d is the same as that of the straight thread section 1c, a resetting thread section 1e is arranged between the two ends of the body 1, the diameter of the resetting thread section 1e is equal to that of the straight thread section 1c, and the resetting thread section 1e is located between the two flaring thread sections 1 d. The equal diameter of the straight thread section 1c means that the external thread section thereon has the same major diameter and the same minor diameter. The straight thread section 1c is used for directly connecting a load, when the load enters the flaring thread section 1d, obvious resistance can be felt, at the moment, the rotating force needs to be increased, so that the internal thread of the load is slightly deformed, the load is matched with the flaring thread section 1d, after the load is matched with the flaring thread section 1d, the load is continuously matched with the resetting thread section 1e, the diameter of the resetting thread section 1e is equal to that of the straight thread section 1c, namely the major diameter of the resetting thread section 1e is the same as that of the straight thread section 1c, the minor diameter of the resetting thread section 1e is the same as that of the straight thread section 1c, and when the two loads are matched with the resetting thread section 1e, the connection between the stud and the load is realized. The double-end bolt is designed through the resistance section, namely the flaring thread section 1d, the small diameter of the flaring thread section 1d is gradually increased to form a flaring shape, so that the resetting behavior can not occur basically after the internal thread on the load is crossed, and the phenomenon of loosening of the double-end bolt is fundamentally avoided.
Specifically, the thread profile of the flared thread segment 1d is a right triangle. The shape enables the load to be fully deformed when moving on the flaring thread section 1d, so that the resetting can not be realized, and the stability is strong. The straight thread segments 1c are longer than the flared thread segments 1 d. Too long a flared thread section 1d may result in increased difficulty of mating with the load. An annular reset gap 1f is formed between the reset thread section 1e and the two flaring thread sections 1 d. After the load is matched with the flaring thread section 1d, the reset gap 1f can provide a deformation space for deformation reset of the load, so that the threaded connection between the load and the resetting thread section 1e can be realized. The width of the reset gap 1f is not less than 5 mm. This range can provide a sufficient deformation distance for load deformation.
Details, structures, dimensions and principles not mentioned in the present application are all known in the art or can be obtained by simple selection of those skilled in the art, and are not described in detail.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (5)
1. The double-ended bolt comprises a shaft-shaped body, wherein one end of the body is a first connecting end, the other end of the body is a second connecting end, and the double-ended bolt is characterized in that the first connecting end and the second connecting end are both provided with a straight thread section and a flaring thread section, the straight thread section is an equal-diameter thread section, the outer end of the flaring thread section starts from the inner end of the straight thread section, the small diameter of the flaring thread section is gradually increased from the outer end to the inner end, the large diameter of the flaring thread section is the same as that of the straight thread section, a resetting thread section is arranged between the two ends of the body, the resetting thread section is equal to that of the straight thread section, and the resetting thread section is positioned between the two flaring thread sections.
2. The stud of claim 1 wherein the thread profile of the flared thread segment is a right triangle.
3. A stud according to claim 1 or claim 2 in which the length of the straight thread segments is longer than the flared thread segments.
4. The stud of claim 1 or claim 2 wherein there is an annular return gap between the return thread segments and the two flared thread segments.
5. The stud of claim 4, wherein the width of the return gap is no less than 5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022099298.XU CN213744438U (en) | 2020-09-23 | 2020-09-23 | Stud bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022099298.XU CN213744438U (en) | 2020-09-23 | 2020-09-23 | Stud bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213744438U true CN213744438U (en) | 2021-07-20 |
Family
ID=76845547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022099298.XU Active CN213744438U (en) | 2020-09-23 | 2020-09-23 | Stud bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213744438U (en) |
-
2020
- 2020-09-23 CN CN202022099298.XU patent/CN213744438U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Stud bolt Effective date of registration: 20211209 Granted publication date: 20210720 Pledgee: Agricultural Bank of China Limited by Share Ltd. Yuhuan branch Pledgor: ZHEJIANG HIRON MACHINERY CO.,LTD. Registration number: Y2021980014630 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |