CN112443550A - Bolt structure capable of never loosening - Google Patents
Bolt structure capable of never loosening Download PDFInfo
- Publication number
- CN112443550A CN112443550A CN202011547528.2A CN202011547528A CN112443550A CN 112443550 A CN112443550 A CN 112443550A CN 202011547528 A CN202011547528 A CN 202011547528A CN 112443550 A CN112443550 A CN 112443550A
- Authority
- CN
- China
- Prior art keywords
- thread
- positive
- nut
- negative
- bolt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010276 construction Methods 0.000 claims 4
- 238000005457 optimization Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B33/00—Features common to bolt and nut
- F16B33/02—Shape of thread; Special thread-forms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
- F16B39/12—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts
- F16B39/16—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts in which the screw-thread of the locknut differs from that of the nut
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
Abstract
The invention discloses a bolt structure which can never loosen, and relates to the technical field of connecting pieces. The bolt structure can be used on a new bolt, can realize on-line optimization on the existing bolt, has strong practicability, simple structure and lower cost, and is convenient for operation of workers.
Description
Technical Field
The invention relates to a bolt structure capable of never loosening, and relates to the technical field of connecting pieces.
Background
Bolt: mechanical parts, cylindrical threaded fasteners fitted with nuts. A fastener consisting of a head part and a screw (a cylinder with external threads) needs to be matched with a nut and is used for fastening and connecting two parts with through holes. This form of connection is known as a bolted connection. If the nut is screwed off from the bolt, the two parts can be separated, so that the bolt connection belongs to detachable connection, and at present, the structures applied to the technical field of connecting pieces such as petroleum, natural gas and the like are generally sequential structures such as flanges, gaskets, nuts and the like. The technology is simple and convenient to construct and install.
The following problems exist in the prior art:
the existing bolt connecting piece structure is easy to loosen the threaded connecting nut originally connected with the bolt due to other external factors such as vibration and the like, so that the fixing effect of the bolt is ineffective.
Disclosure of Invention
The invention aims to provide a bolt structure which is never loosened, and aims to provide a better fastening effect and solve the problem that the existing bolt connecting piece structure is easy to loosen a threaded connecting nut originally connected with a bolt.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a bolt structure that never loosens, includes positive nut, left-hand thread nut, double-screw bolt, gasket, positive thread and positive and negative thread, the double-screw bolt includes positive thread and positive and negative thread, positive thread's left end surface threaded connection has the flange, positive and negative thread sets up in positive thread's right side, positive thread's surface has positive nut by right threaded connection, positive and negative threaded surface threaded connection has left-hand thread nut, positive threaded surface is located the clearance department of positive nut and flange and is provided with the gasket.
The technical scheme of the invention is further improved as follows: the length of the right-hand thread exposed out of the flange and the gasket is nine tenths of the thickness of the right-hand nut.
The technical scheme of the invention is further improved as follows: and the outer surface of the positive and negative buckle threads is provided with a gasket at the gap of the positive and negative buckle nuts.
The technical scheme of the invention is further improved as follows: the positive and negative thread is composed of two threads, namely a positive thread and a negative thread.
The technical scheme of the invention is further improved as follows: the positive thread part of the positive and negative thread can be connected with the positive nut thread, and the negative thread part of the positive and negative thread can be connected with the negative nut thread.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the technical progress that:
the invention provides a bolt structure which can never loosen, which is ingenious in design, wherein a stud is provided with a positive thread and a negative thread which are respectively in bolt connection with a positive nut and a negative nut, so that when the bolt structure is fixedly connected with a flange, the positive nut plays a role in fastening the flange, when the positive nut loosens under the action of external force, the movement direction of the negative nut is opposite to that of the positive nut, and the purpose of preventing loosening is achieved for the positive nut.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention;
fig. 2 is a schematic front structural view of the present invention.
In the figure: 1. a right-handed nut; 2. a left-hand nut; 3. a stud; 4. a gasket; 5. screwing threads; 6. and (6) screwing the front and the back.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
as shown in figures 1-2, the invention provides a bolt structure which is never loosened, comprising a positive thread nut 1, a negative thread nut 2, a stud 3, a gasket 4, a positive thread 5 and a positive and negative thread 6, wherein the stud 3 comprises the positive thread 5 and the positive and negative thread 6, the outer surface of the left end of the positive thread 5 is connected with a flange in a threaded manner, the positive and negative thread 6 is arranged on the right side of the positive thread 5, the outer surface of the positive thread 5 is connected with the positive thread nut 1 in a threaded manner close to the right thread, the outer surface of the positive and negative thread 6 is connected with the negative thread 2 in a threaded manner, the gasket 4 is arranged at the gap between the positive thread 1 and the flange on the outer surface of the positive thread 5, the length of the exposed flange and the gasket 4 of the positive thread 5 is nine tenths of the thickness of the positive thread 1, the gasket 4 is arranged at the gap between the positive and negative thread 6 and the negative thread 2, the positive thread 5 and the negative thread are formed by two threads, the positive thread 5 of the positive and negative thread 6 can be connected with the positive nut 1 by screw thread, the negative thread of the positive and negative thread 6 can be connected with the negative nut 2 by screw thread, so that the positive nut 1 can pass through the positive and negative thread 6 to be connected with the positive thread 5 by screw thread, when the bolt structure is used, firstly, the left end outer surface of the positive thread 5 of the stud 3 is connected with the flange by screw thread, then the gasket 4 is connected with the positive thread 5 by screw thread, then the positive nut 1 is connected with the outer surface of the positive thread 5 by right screw thread, then the gasket 4 is connected with the left end of the positive and negative thread 6 arranged on the stud 3 by screw thread, finally, the negative nut 2 is connected with the positive thread 6 by screw thread, the positive nut 1 has fastening function to the flange which is connected with the left end outer surface of the positive thread 5 by screw thread 5, the flange is contacted with the positive nut 1 by the gasket 4, the positive button nut 1 is not easy to loosen, the left-hand button nut 2 is connected with the positive and negative button thread 6 of the stud 3 through the thread, the left-hand button nut 2 has the function of preventing the positive button nut 1 from loosening, the left-hand button nut 2 is separated from the positive button nut 1 through the arranged gasket 4, when the stud 3 screwed with the flange is loosened under the influence of vibration or other external factors, the threaded connection between the positive-thread nut 1 and the positive-thread 5 is loosened, because the direction of the positive thread 5 arranged on the stud 3 is opposite to that of the positive thread 6, when the threaded connection between the positive nut 1 and the positive thread 5 is loosened and the positive nut moves rightwards, the threaded connection of the left-hand thread 2 and the right-hand thread 6 is more tightly fixed, so that the left-hand thread moves, the distance between the left-hand thread 2 and the right-hand thread 1 is closer and closer, and the connection between the left-hand thread 2 and the right-hand thread 1 and the stud 3 is also more and more tightly fixed.
The working principle of the permanently unfastened bolt structure will be described in detail below.
As shown in fig. 1-2, when the bolt structure is in operation, the threaded connection between the positive fastening nut 1 and the positive fastening thread 5 is loosened to cause the positive fastening nut to move rightwards, the threaded connection between the negative fastening nut 2 and the positive fastening thread 6 is more fastened to cause the positive fastening nut to move leftwards, the distance between the negative fastening nut 2 and the positive fastening nut 1 is closer and closer, the connection between the negative fastening nut 2 and the positive fastening nut 1 and the stud 3 is also more and more fastened, and the design purpose of the permanent looseness is achieved.
The present invention has been described in general terms in the foregoing, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto based on the present invention. Therefore, modifications or improvements are within the scope of the invention without departing from the spirit of the inventive concept.
Claims (5)
1. The utility model provides a bolt structure that never moves, includes positive thread nut (1), left-hand thread nut (2), double-screw bolt (3), gasket (4), positive thread (5) and positive and negative thread (6), its characterized in that: double-screw bolt (3) are including just detaining screw thread (5) and positive and negative knot screw thread (6), the left end surface threaded connection of just detaining screw thread (5) has the flange, positive and negative knot screw thread (6) set up in the right side of just detaining screw thread (5), the surface of just detaining screw thread (5) leans on right threaded connection to have just detaining nut (1), the surface threaded connection of just left-hand thread (6) has left-hand thread nut (2), the surface of just detaining screw thread (5) is located the clearance department of just detaining nut (1) and flange and is provided with gasket (4).
2. A permanently set bolt construction as claimed in claim 1, wherein: the length of the right-hand thread (5) exposed out of the flange and the gasket (4) is nine tenth of the thickness of the right-hand nut (1).
3. A permanently set bolt construction as claimed in claim 1, wherein: the outer surface of the positive and negative buckle threads (6) is provided with a gasket (4) at the gap of the positive buckle nut (1) and the negative buckle nut (2).
4. A permanently set bolt construction as claimed in claim 1, wherein: the positive and negative thread (6) is composed of a positive thread (5) and a negative thread.
5. A permanently set bolt construction as claimed in claim 1, wherein: the positive thread (5) of the positive and negative thread (6) is in threaded connection with the positive nut (1), and the negative thread of the positive and negative thread (6) is in threaded connection with the negative nut (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011547528.2A CN112443550A (en) | 2020-12-24 | 2020-12-24 | Bolt structure capable of never loosening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011547528.2A CN112443550A (en) | 2020-12-24 | 2020-12-24 | Bolt structure capable of never loosening |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112443550A true CN112443550A (en) | 2021-03-05 |
Family
ID=74739448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011547528.2A Pending CN112443550A (en) | 2020-12-24 | 2020-12-24 | Bolt structure capable of never loosening |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112443550A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114033783A (en) * | 2021-11-24 | 2022-02-11 | 江苏永昊高强度螺栓有限公司 | Anka anchor bolt |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2508044Y (en) * | 2001-09-03 | 2002-08-28 | 河南石油勘探局水电厂 | Check fixing bolt |
| KR200372270Y1 (en) * | 2004-10-26 | 2005-01-14 | 기 관 김 | structure of a bolt |
| CN201273329Y (en) * | 2008-09-05 | 2009-07-15 | 中国石油天然气股份有限公司 | Crank pin of oil pumping unit with back and forth fastening nut |
| CN211174957U (en) * | 2019-05-18 | 2020-08-04 | 贾云飞 | Positive and negative double-nut self-locking screw |
| CN214465433U (en) * | 2020-12-24 | 2021-10-22 | 北京天泰智汇科技有限公司 | Bolt structure capable of never loosening |
-
2020
- 2020-12-24 CN CN202011547528.2A patent/CN112443550A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2508044Y (en) * | 2001-09-03 | 2002-08-28 | 河南石油勘探局水电厂 | Check fixing bolt |
| KR200372270Y1 (en) * | 2004-10-26 | 2005-01-14 | 기 관 김 | structure of a bolt |
| CN201273329Y (en) * | 2008-09-05 | 2009-07-15 | 中国石油天然气股份有限公司 | Crank pin of oil pumping unit with back and forth fastening nut |
| CN211174957U (en) * | 2019-05-18 | 2020-08-04 | 贾云飞 | Positive and negative double-nut self-locking screw |
| CN214465433U (en) * | 2020-12-24 | 2021-10-22 | 北京天泰智汇科技有限公司 | Bolt structure capable of never loosening |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114033783A (en) * | 2021-11-24 | 2022-02-11 | 江苏永昊高强度螺栓有限公司 | Anka anchor bolt |
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