CN111425507A - Anti-loosening flange bolt - Google Patents
Anti-loosening flange bolt Download PDFInfo
- Publication number
- CN111425507A CN111425507A CN202010435612.9A CN202010435612A CN111425507A CN 111425507 A CN111425507 A CN 111425507A CN 202010435612 A CN202010435612 A CN 202010435612A CN 111425507 A CN111425507 A CN 111425507A
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- Prior art keywords
- thread
- bolt
- hole
- handle
- fixedly connected
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- 230000006978 adaptation Effects 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 9
- 238000010276 construction Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- 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
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/06—Specially-shaped heads
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- 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
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention discloses a locking type flange face bolt and relates to the technical field of bolts. The anti-loosening flange bolt comprises a bolt tail, wherein a first thread is arranged on the outer side of the bolt tail, a first bolt head is fixedly connected to the front end of the first thread, a handle hole is formed in the outer side of the first bolt head, a second thread is arranged on the inner wall of the handle hole, a handle rod is arranged on the right side of the handle hole, the left end of the handle rod is inserted into the handle hole, the handle rod is matched with the handle hole, a third thread is arranged on the outer side of the right end of the handle rod, the third thread is matched with the second thread, the handle rod and the handle hole are fixedly connected together through the second thread and the third thread, a clamping plate is fixedly connected to the left end of the handle rod, the clamping plate is located in the handle hole, a handle is fixedly connected to the right end of the handle, this locking type flange face bolt that moves has increased the arm of force when the bolt is whole rotatory for the whole light more of rotatory bolt, the laborsaving whole screw in target location with the bolt of being convenient for.
Description
Technical Field
The invention relates to the technical field of bolts, in particular to a locking type flange face bolt.
Background
The fastener is a basic mechanical part for connection, has the advantages of simple construction, good stress performance, detachability, fatigue resistance, no looseness under the action of dynamic load and the like, is widely applied to the industries of machinery, electric power, automobiles, buildings, railways, bridges, ships, fire-fighting water supply systems, communication systems and the like, is used for connection of important machinery, and is also a safety part. The flange bolt is one of bolt connection pairs and is widely applied to heavy machinery such as bridge construction, industrial and civil buildings, cranes and the like, high-end automobile engines and the like.
Under certain specific conditions, the bolt needs to be removed from the target position, but the phenomenon of bolt thread slipping can occur later, and in such a case, the bolt is difficult to remove from the target position without a tool, and even if the tool is available, great effort is required to extract the bolt, which causes certain trouble to required work.
Disclosure of Invention
The invention aims to provide an anti-loosening flange bolt to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a locking type flange face bolt, includes the bolt tail, screw thread one has been seted up in the outside of bolt tail, the front end fixedly connected with bolt head one of screw thread one, the handle hole has been seted up in the outside of bolt head one, screw thread two has been seted up on the inner wall of handle hole, the right-hand handle pole that is provided with in handle hole, the left end of handle pole inserts the inside in handle hole, handle pole and handle hole adaptation, screw thread three has been seted up in the right-hand member outside of handle pole, screw thread three and screw thread two adaptations, the handle pole passes through screw thread two and screw thread three fixed connection with the handle hole and is in the same place, the left end fixedly connected with cardboard of handle pole, the cardboard is in the inside in handle hole, the right-hand member fixedly connected with handle of handle pole, the handle is in the outside in handle hole.
The bolt head is characterized in that a first fixing hole is uniformly formed in the outer side of the front surface of the first bolt head in an equidistant mode, a fourth thread is formed in the inner wall of the first fixing hole, a bearing hole is formed in the middle of the front surface of the first bolt head, a bearing is arranged inside the bearing hole, the bearing hole is matched with the bearing, and the outer ring of the bearing is fixedly connected with the bearing hole.
The inner ring of the bearing is fixedly connected with a first connecting column, a movable hole is formed in the front surface of the first connecting column, a sliding groove is formed in the left side of the inner wall of the movable hole, a second connecting column is arranged in front of the movable hole, the rear end of the second connecting column is inserted into the movable hole, and the second connecting column is matched with the movable hole.
The left side fixedly connected with traveller of spliced pole two, the traveller inserts the inside of spout, traveller and spout adaptation, the rear end fixedly connected with spring of spliced pole two, the spring is in the inside of activity hole, the back inner wall fixed connection of spring and activity hole.
Preferably, the front end of the second connecting column is fixedly connected with a third connecting column, the front end of the third connecting column is fixedly connected with a second bolt head, and the second bolt head is the same as the first bolt head.
Preferably, the outer side of the front surface of the bolt head II is uniformly provided with a second fixing hole in equal distance, the second fixing hole is the same as the first fixing hole, the second fixing hole is opposite to the first fixing hole, a fifth thread is arranged inside the second fixing hole, and the fifth thread is the same as the fourth thread.
Preferably, a fixing column is arranged in front of the second fixing hole, the rear end of the fixing column is inserted into the second fixing hole, a sixth thread is formed in the outer side of the fixing column, the sixth thread is matched with the fifth thread, and the fixing column and the second fixing hole are connected together through the fifth thread and the sixth thread.
Preferably, the front end of the fixing column is fixedly connected with a fixing column head, and the fixing column head is positioned outside the fixing hole II.
Compared with the prior art, the invention has the beneficial effects that:
(1) the anti-loosening flange bolt is characterized in that a handle hole is formed in the outer side of a bolt head I, a second thread is formed in the inner wall of the handle hole, the left end of a handle rod is inserted into the handle hole, a third thread is formed in the outer side of the right end of the handle rod, a clamping plate is fixedly connected to the left end of the handle rod, a handle is fixedly connected to the right end of the handle rod, the handle rod and the handle hole are fixedly connected with the second thread through the third thread in an initial state, the anti-loosening flange bolt is not greatly different from a common bolt at the moment, when the bolt needs to be rotated, the handle rod can be screwed out of the handle hole through rotating the handle, the handle rod is pulled out of the handle hole in the whole section, force can be applied to the whole handle rod to drive the bolt to be integrally screwed into the corresponding hole, the handle rod is designed, the force arm of the bolt during integral rotation is increased, and the whole rotating bolt is easier, the bolt is conveniently and integrally screwed into the target position in a labor-saving manner.
(2) This locking type flange face bolt that moves, the front surface outside equidistance through bolt head one has seted up fixed orifices one, has seted up screw thread four on the inner wall of fixed orifices one, after the whole screw in target location of bolt, can also be through around the screw head one is nailed into target location at a fixed orifices internal thread connecting screw, has strengthened bolted connection's stability.
(3) This locking moving type flange face bolt, the even fixed orifices one of having seted up of front surface outside equidistance through bolt head one, screw thread four has been seted up on the inner wall of fixed orifices one, when the condition of smooth silk appears in the bolt, can take out the fixed column from fixed orifices two, then with the inside of the whole fixed orifices of precessing of fixed column, the fixed column is worn out fixed orifices wall around the target location at the bottom like this, the hole of outwards pulling away the bolt from smooth silk that the precession fixed column that lasts can be light, provide very big facility for taking out of smooth silk bolt.
(4) This locking type flange face bolt, through the existence of spring for a soft connection has appeared on the connection of bolt head two and bolt head one, receives outside striking when bolt head two like this, just makes the influence to the bolt tail reduce to some extent because bolt head one and bolt tail are rigid connection, and the most collision to the bolt tail can be avoidd like this, makes the life greatly increased of device.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of the invention at A;
FIG. 3 is an enlarged view of the invention at B.
In the figure: the bolt comprises a bolt tail 1, a first thread 2, a first bolt head 3, a handle hole 4, a second thread 5, a handle rod 6, a third thread 7, a clamping plate 8, a handle 9, a first fixing hole 10, a fourth thread 11, a bearing hole 12, a bearing 13, a first connecting column 14, a movable hole 15, a sliding chute 16, a second connecting column 17, a sliding column 18, a spring 19, a third connecting column 20, a second bolt head 21, a second fixing hole 22, a fifth thread 23, a fixed column 24, a sixth thread 25 and a fixed column head 26.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a locking type flange face bolt that moves, including bolt tail 1, screw thread one 2 is seted up in the outside of bolt tail 1, the first 3 of front end fixedly connected with bolt of screw thread one 2, handle hole 4 has been seted up in the outside of first 3 of bolt, screw thread two 5 has been seted up on the inner wall of handle hole 4, handle hole 4's the right-hand handle pole 6 that is provided with, the inside of handle hole 4 is inserted to the left end of handle pole 6, handle pole 6 and the adaptation of handle hole 4, screw thread three 7 has been seted up in the right-hand member outside of handle pole 6, screw thread three 7 and two 5 adaptations of screw thread, handle pole 6 is in the same place through two 5 of screw thread and three 7 fixed connection with handle hole 4, the left end fixedly connected with cardboard 8 of handle pole 6, cardboard 8 is in the inside of handle hole 4, the right-hand member fixedly connected with handle 9 of handle pole 6, handle 9 is.
The front surface outside equidistance of bolt head 3 is even has seted up fixed orifices one 10, has seted up screw thread four 11 on the inner wall of fixed orifices one 10, and dead eye 12 has been seted up at the front surface middle part of bolt head 3, and the inside of dead eye 12 is provided with bearing 13, dead eye 12 and bearing 13 adaptation, bearing 13's outer lane and dead eye 12 fixed connection together.
The inner ring of the bearing 13 is fixedly connected with a first connecting column 14, the front surface of the first connecting column 14 is provided with a movable hole 15, the left side of the inner wall of the movable hole 15 is provided with a sliding chute 16, a second connecting column 17 is arranged in front of the movable hole 15, the rear end of the second connecting column 17 is inserted into the movable hole 15, and the second connecting column 17 is matched with the movable hole 15.
The left side of the second connecting column 17 is fixedly connected with a sliding column 18, the sliding column 18 is inserted into the sliding groove 16, the sliding column 18 is matched with the sliding groove 16, the rear end of the second connecting column 17 is fixedly connected with a spring 19, the spring 19 is located inside the movable hole 15, and the spring 19 is fixedly connected with the rear inner wall of the movable hole 15.
The front end of the second connecting column 17 is fixedly connected with a third connecting column 20, the front end of the third connecting column 20 is fixedly connected with a second bolt head 21, and the second bolt head 21 is the same as the first bolt head 3.
The outer side of the front surface of the bolt head II 21 is uniformly provided with a fixing hole II 22 at equal intervals, the fixing hole II 22 is the same as the fixing hole I10, the fixing hole II 22 is opposite to the fixing hole I10, the fixing hole II 22 is internally provided with a thread fifth 23, and the thread fifth 23 is the same as the thread fourth 11.
A fixing column 24 is arranged in front of the second fixing hole 22, the rear end of the fixing column 24 is inserted into the second fixing hole 22, a thread six 25 is formed in the outer side of the fixing column 24, the thread six 25 is matched with the thread five 23, and the fixing column 24 is connected with the second fixing hole 22 through the thread five 23 and the thread six 25.
The front end of the fixed column 24 is fixedly connected with a fixed column head 26, and the fixed column head 26 is positioned outside the second fixed hole 22.
The working principle is as follows:
the first step is as follows: a handle hole 4 is formed in the outer side of a first bolt 3, a second thread 5 is formed in the inner wall of the handle hole 4, the left end of a handle rod 6 is inserted into the handle hole 4, a third thread 7 is formed in the outer side of the right end of the handle rod 6, a clamping plate 8 is fixedly connected to the left end of the handle rod 6, a handle 9 is fixedly connected to the right end of the handle rod 6, the handle rod 6 and the handle hole 4 are fixedly connected with the second thread 5 through the third thread 7 in an initial state, the bolt is not greatly different from a common bolt at the moment, when the bolt needs to be rotated, the handle rod 6 can be screwed out of the handle hole 4 through rotating the handle 9, the whole section of the handle rod 6 is pulled out of the handle hole 4, force can be applied to the whole handle rod 6 to drive the whole bolt to be screwed into a corresponding hole, the design of the handle rod 6 increases the force arm when the whole bolt rotates, the whole bolt is easier to rotate, and the bolt is conveniently and integrally screwed into a target position in a labor-saving manner.
The second step is that: the first fixing holes 10 are uniformly formed in the outer side of the front surface of the first bolt head 3 at equal intervals, the fourth threads 11 are formed in the inner walls of the first fixing holes 10, and after the bolt is integrally screwed into the target position, the first bolt head 3 can be screwed into the periphery of the target position through the screw thread connecting screws in the first fixing holes 10, so that the stability of bolt connection is enhanced.
The third step: through the even fixed orifices 10 of having seted up of the front surface outside equidistance of bolt head 3, set up screw thread four 11 on the inner wall of fixed orifices 10, when the condition of smooth silk appears in the bolt, can take out fixed column 24 from fixed orifices two 22, then with inside the whole precession fixed orifices 10 of fixed column 24, fixed column 24 wears out fixed orifices 10 and lives the wall around the target location like this, the hole of smooth silk is outwards pulled away from to the bolt that continuous precession fixed column 24 can be light, take out for smooth silk bolt provides very big facility.
The fourth step: due to the existence of the spring 19, a soft connection is formed between the second bolt head 21 and the first bolt head 3, so that when the second bolt head 21 is impacted from the outside, the damage to the first bolt head 3 is reduced, and as the first bolt head 3 and the bolt tail 1 are in hard connection, the influence on the bolt tail 1 is reduced, most of the collision on the bolt tail 1 can be avoided, and the service life of the device is greatly prolonged.
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 (8)
1. The utility model provides a locking type flange face bolt, includes bolt tail (1), screw thread (2) are seted up in the outside of bolt tail (1), the front end fixedly connected with bolt head (3) of screw thread (2), its characterized in that: a handle hole (4) is formed in the outer side of the bolt head I (3), a second thread (5) is formed in the inner wall of the handle hole (4), a handle rod (6) is arranged on the right side of the handle hole (4), the left end of the handle rod (6) is inserted into the handle hole (4), the handle rod (6) is matched with the handle hole (4), the outer side of the right end of the handle rod (6) is provided with a third thread (7), the third thread (7) is matched with the second thread (5), the handle rod (6) is fixedly connected with the handle hole (4) through the second thread (5) and the third thread (7), the left end of the handle rod (6) is fixedly connected with a clamping plate (8), the clamping plate (8) is positioned in the handle hole (4), the right end of the handle rod (6) is fixedly connected with a handle (9), and the handle (9) is positioned outside the handle hole (4).
2. The anti-loosening flange bolt as defined in claim 1, wherein: the front surface outside equidistance of bolt head (3) is even has seted up fixed orifices one (10), set up four (11) of screw thread on the inner wall of fixed orifices one (10), dead eye (12) have been seted up at the front surface middle part of bolt head (3), the inside of dead eye (12) is provided with bearing (13), dead eye (12) and bearing (13) adaptation, the outer lane of bearing (13) is in the same place with dead eye (12) fixed connection.
3. A locking type flange face bolt as claimed in claim 2, wherein: inner circle fixedly connected with spliced pole (14) of bearing (13), activity hole (15) have been seted up to the front surface of spliced pole (14), spout (16) have been seted up on the inner wall left side of activity hole (15), the place ahead of activity hole (15) is provided with spliced pole two (17), the inside in activity hole (15) is inserted to the rear end of spliced pole two (17), spliced pole two (17) and activity hole (15) adaptation.
4. A locking type flange face bolt as claimed in claim 3, wherein: the left side fixedly connected with traveller (18) of spliced pole two (17), traveller (18) insert the inside of spout (16), traveller (18) and spout (16) adaptation, the rear end fixedly connected with spring (19) of spliced pole two (17), spring (19) are in the inside of activity hole (15), the back inner wall fixed connection of spring (19) and activity hole (15).
5. A locking type flange face bolt as claimed in claim 3, wherein: the front end of the second connecting column (17) is fixedly connected with a third connecting column (20), the front end of the third connecting column (20) is fixedly connected with a second bolt head (21), and the second bolt head (21) is the same as the first bolt head (3).
6. A locking type flange face bolt of claim 5, characterized in that: the bolt head is characterized in that a second fixing hole (22) is formed in the outer side of the front surface of the second bolt head (21) in an equidistant mode, the second fixing hole (22) is identical to the first fixing hole (10), the second fixing hole (22) is opposite to the first fixing hole (10), a fifth thread (23) is formed in the second fixing hole (22), and the fifth thread (23) is identical to the fourth thread (11).
7. A locking type flange face bolt of claim 6, characterized in that: a fixing column (24) is arranged in front of the second fixing hole (22), the rear end of the fixing column (24) is inserted into the second fixing hole (22), a thread six (25) is formed in the outer side of the fixing column (24), the thread six (25) is matched with the thread five (23), and the fixing column (24) is connected with the second fixing hole (22) through the thread five (23) and the thread six (25).
8. A locking type flange face bolt as claimed in claim 7, wherein: the front end of the fixing column (24) is fixedly connected with a fixing column head (26), and the fixing column head (26) is positioned outside the second fixing hole (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010435612.9A CN111425507B (en) | 2020-05-21 | 2020-05-21 | Anti-loose flange face bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010435612.9A CN111425507B (en) | 2020-05-21 | 2020-05-21 | Anti-loose flange face bolt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111425507A true CN111425507A (en) | 2020-07-17 |
| CN111425507B CN111425507B (en) | 2024-07-09 |
Family
ID=71553306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010435612.9A Active CN111425507B (en) | 2020-05-21 | 2020-05-21 | Anti-loose flange face bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111425507B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112303091A (en) * | 2020-11-03 | 2021-02-02 | 翁婷婷 | Anti-loosening mechanical fastener convenient to detach |
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| US20160032957A1 (en) * | 2013-02-15 | 2016-02-04 | Kab Hee JUNG | Insert bolt having anti-turn function |
| US20160160904A1 (en) * | 2014-12-09 | 2016-06-09 | Samson Co., Ltd. | Anti-loosening bolt assembly |
| CN206309746U (en) * | 2016-12-01 | 2017-07-07 | 绍兴市瑞雪环保科技有限公司 | A kind of screw with anti-loosening function |
| CN208311227U (en) * | 2018-05-02 | 2019-01-01 | 中国建筑第八工程局有限公司 | Antidetonation bolt |
| CN110107586A (en) * | 2019-05-05 | 2019-08-09 | 海盐海马五金有限公司 | A kind of spring nut that anti-loosening performance is good |
| CN209638196U (en) * | 2019-01-26 | 2019-11-15 | 温州博力浩实业有限公司 | Facilitate the bolt of taking-up after a kind of stripped thread |
| CN210106353U (en) * | 2019-06-11 | 2020-02-21 | 南京福贝尔五金制品有限公司 | Combined screw capable of preventing loosening |
| CN210178724U (en) * | 2019-06-25 | 2020-03-24 | 泊头市意兴隆金属制品有限公司 | Novel bolt convenient to fasten |
| CN210541791U (en) * | 2019-03-07 | 2020-05-19 | 贵州航天医院 | Steel plate extractor for screw sliding in orthopedic surgery |
| CN212106566U (en) * | 2020-05-21 | 2020-12-08 | 济南实达紧固件有限公司 | Anti-loosening flange bolt |
| CN214661385U (en) * | 2021-03-29 | 2021-11-09 | 中国长江电力股份有限公司 | Quick detachable bolt of reply smooth silk of screw thread |
-
2020
- 2020-05-21 CN CN202010435612.9A patent/CN111425507B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110010588U (en) * | 2010-05-06 | 2011-11-14 | 임경태 | Fastening member for preventing from loosening |
| US20160032957A1 (en) * | 2013-02-15 | 2016-02-04 | Kab Hee JUNG | Insert bolt having anti-turn function |
| US20160160904A1 (en) * | 2014-12-09 | 2016-06-09 | Samson Co., Ltd. | Anti-loosening bolt assembly |
| CN206309746U (en) * | 2016-12-01 | 2017-07-07 | 绍兴市瑞雪环保科技有限公司 | A kind of screw with anti-loosening function |
| CN208311227U (en) * | 2018-05-02 | 2019-01-01 | 中国建筑第八工程局有限公司 | Antidetonation bolt |
| CN209638196U (en) * | 2019-01-26 | 2019-11-15 | 温州博力浩实业有限公司 | Facilitate the bolt of taking-up after a kind of stripped thread |
| CN210541791U (en) * | 2019-03-07 | 2020-05-19 | 贵州航天医院 | Steel plate extractor for screw sliding in orthopedic surgery |
| CN110107586A (en) * | 2019-05-05 | 2019-08-09 | 海盐海马五金有限公司 | A kind of spring nut that anti-loosening performance is good |
| CN210106353U (en) * | 2019-06-11 | 2020-02-21 | 南京福贝尔五金制品有限公司 | Combined screw capable of preventing loosening |
| CN210178724U (en) * | 2019-06-25 | 2020-03-24 | 泊头市意兴隆金属制品有限公司 | Novel bolt convenient to fasten |
| CN212106566U (en) * | 2020-05-21 | 2020-12-08 | 济南实达紧固件有限公司 | Anti-loosening flange bolt |
| CN214661385U (en) * | 2021-03-29 | 2021-11-09 | 中国长江电力股份有限公司 | Quick detachable bolt of reply smooth silk of screw thread |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112303091A (en) * | 2020-11-03 | 2021-02-02 | 翁婷婷 | Anti-loosening mechanical fastener convenient to detach |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111425507B (en) | 2024-07-09 |
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