CN110259809B - Fastening method of fixed torque pressure fastener - Google Patents
Fastening method of fixed torque pressure fastener Download PDFInfo
- Publication number
- CN110259809B CN110259809B CN201910691371.1A CN201910691371A CN110259809B CN 110259809 B CN110259809 B CN 110259809B CN 201910691371 A CN201910691371 A CN 201910691371A CN 110259809 B CN110259809 B CN 110259809B
- Authority
- CN
- China
- Prior art keywords
- sleeve
- screw
- internal pressure
- nut
- pressure
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000007789 sealing Methods 0.000 claims description 8
- 230000001788 irregular Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
-
- 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
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/24—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Vessels And Lids Thereof (AREA)
- Clamps And Clips (AREA)
Abstract
The fastening method of the constant torque pressure fastener provided by the invention effectively solves the problems that the fastening device is sent excessively or is overtightened due to irregular construction of workers, the fastening device is easy to fall off when loosened, and the inside of the fastening device is easy to generate cracks when tightened, and the fastening device can continuously keep good pressure so as to ensure the fastening of the fastening device for a longer time, so that the overhaul times can be properly reduced, the overhaul drainage wire clamp belongs to high-altitude power operation, and the high-altitude power operation is difficult and dangerous.
Description
Technical Field
The invention relates to a pressure fastener, in particular to a fastening method of a constant torque pressure fastener.
Background
The traditional pressure fastener is dangerous and workers are easy to operate and not standard due to the fact that the traditional pressure fastener belongs to high-altitude operation during use, the pressure of the fastener cannot be accurately controlled to a certain value during installation, the traditional pressure fastener is easy to fall off due to loosening, internal cracks can be generated due to the fact that the traditional pressure fastener is too tight, the service life of the traditional pressure fastener is prolonged, potential safety hazards exist in a circuit, the circuit can swing and vibrate due to the fact that the traditional pressure fastener is exposed to the air manager for blowing rain, and a connecting part can be broken or fall off easily.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides a fastening method of a fixed torque pressure fastener, which not only solves the problems that the fastener is easy to loosen and the inside is easy to crack when being screwed down due to irregular operation, but also solves the problem that the pressure is kept stable for a long time, so that the fixed piece cannot loosen when vibrating.
The technical scheme is that the screw cap comprises a bolt and a screw cap, and is characterized by also comprising a screw sleeve, a screw cap and an internal pressure device;
The screw cap is screwed on the bolt, the screw rod at the upper end of the screw cap is screwed with the screw sleeve, the outer surface of the upper part of the screw sleeve is provided with external threads, the screw cap is screwed on the external threads at the upper end of the screw sleeve, an internal pressure device is arranged in the screw sleeve between the screw cap and the screw rod, and the internal pressure device applies upward force to the screw cap after the screw cap is screwed, and applies downward force to the bolt.
Preferably, the internal pressure device is an elastic member.
Preferably, the internal pressure device is a first spring.
Preferably, the two ends of the first spring are provided with an upper baffle and a lower baffle.
Preferably, the upper baffle plate extends downwards to form a guide rod arranged in the first spring, and the lower baffle plate extends upwards to form a guide sleeve in sliding fit with the guide rod.
Preferably, the internal pressure device is composed of an upper air pressure sleeve, a lower air pressure sleeve and an upper air pressure sleeve and a lower air pressure sleeve, and the upper air pressure sleeve and the lower air pressure sleeve are in sliding sealing fit.
Preferably, a second spring is connected between the upper air pressure sleeve and the lower air pressure sleeve.
Preferably, the internal pressure device is a cylinder, and the gas port at the upper part of the cylinder is closed.
Preferably, the internal pressure device in the non-working state is provided with a threaded sleeve extending upwards from the upper end of the internal pressure device, and the threaded cap is composed of a nut and a sealing cap at the upper end of the nut.
Preferably, the upper end of the internal pressure device is placed in the screw sleeve in the non-working state, and the screw cap is composed of a nut, a sealing cap at the upper end of the nut and a stop block which is fixed at the lower end of the sealing cap and extends downwards.
The invention has the beneficial effects that: the device not only solves the problem that the positioning piece is fastened by continuously providing force after installation and can not loosen due to vibration, but also provides various internal pressure devices provided according to different conditions on the pressure device to adapt to different conditions, and the internal pressure devices continuously apply pressure to the threads of the connecting part to position the positioning piece, so that the positioning piece can be kept for a long time without loosening, the number of times of overhauling can be reduced for workers working aloft, and the labor intensity is lightened.
Drawings
FIG. 1 is a schematic view of the whole of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a cross-sectional view of the present invention.
Fig. 4 shows the spring internal pressure device of the present invention.
Fig. 5 is a cross-sectional view of the spring internal pressure device of the present invention.
FIG. 6 shows an air pressure internal pressure device according to the present invention.
FIG. 7 is a cross-sectional view of the pneumatic internal pressure device of the present invention.
Fig. 8 shows an internal cylinder pressure device according to the present invention.
Fig. 9 is a cross-sectional view of the cylinder internal pressure device of the present invention.
Fig. 10 is a schematic view of a nut of the present invention.
Fig. 11 is a structural view of the present invention in a specific installation.
1. The device comprises bolts, 2, nuts, 3, threaded sleeves, 4, a threaded cover, 5, an internal pressure device, 6, a first spring, 7, a second spring, 8, an upper baffle plate, 9, a lower baffle plate, 10, a guide rod, 11, a guide sleeve, 12, an upper air pressure sleeve, 13, a lower air pressure sleeve, 14, an air cylinder, 15, a nut, 16, a sealing cover, 17, a stop block and 18, and a strain clamp drainage plate.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to fig. 1-11.
The first embodiment solves the technical scheme that the device comprises a bolt 1 and a nut 2 and is characterized by also comprising a screw sleeve 3, a screw cap 4 and an internal pressure device 5;
The nut 2 is screwed on the bolt 1, the screw rod at the upper end of the nut 2 is screwed with the screw sleeve 3, the outer surface of the upper part of the screw sleeve 3 is provided with external threads, the screw cap 4 is screwed on the external threads at the upper end of the screw sleeve 3, an internal pressure device 5 is arranged in the screw sleeve 3 between the screw cap 4 and the screw rod, and the internal pressure device 5 applies upward force to the screw cap 4 after the screw cap 4 is screwed, and downward force is applied to the bolt 1. When the screw cap is used, a fastened piece is sleeved on a screw, a nut 2 is screwed on the screw above the fastened piece, a thread sleeve 3 is screwed on the screw above the nut 2, an internal pressure device 5 is placed in the thread sleeve 3 at the upper end of the screw, a thread cover 4 is screwed on an external thread on the upper part of the thread sleeve 3, the thread cover 4 is screwed, the internal pressure device 5 applies downward force to the screw under the action of self elastic force, upward force is applied to the thread cap, and the pressure applied by the internal pressure device 5 is increased at the threaded connection part of the screw and the thread sleeve 3 and the threaded connection part of the thread sleeve 3 and the thread cover 4 so as to keep positioning.
Compared with the traditional nut, the traditional nut can lead to deformation of the elastic piece (such as a strain clamp drainage plate) when the elastic piece is positioned, loosening can lead to loosening phenomenon, optimal torque cannot be provided, or the nut cannot be carried out according to a unified torque standard, because the elastic piece can be deformed if the unified torque standard is too large. The pressure fastener device provided by the invention is used for loosening a traditional nut, preventing the traditional nut from backing, transmitting force to a bolt and a nut at the lower part through a spring when the traditional nut is screwed down, and preventing an elastic piece to be fastened from being subjected to pressure at the moment.
In a second embodiment, based on the first embodiment, the internal pressure device 5 is an elastic member. In use, this embodiment comprises an internal pressure device 5 comprising all objects which can be placed in the screw sleeve 3 and exert a certain force upwards and downwards.
In a third embodiment, based on the first embodiment, the internal pressure device 5 is a first spring 6. In use of this embodiment, the internal pressure means 5 may be a first spring 6 placed in the sleeve 3, the magnitude of the spring force being chosen according to the situation.
In the fourth embodiment, on the basis of the third embodiment, two ends of the first spring 6 are provided with an upper baffle 8 and a lower baffle 9. When the embodiment is used, when the internal pressure device 5 is a spring, the upper end face and the lower end face of the spring are provided with the baffle plates, and the baffle plates are contacted with the upper end of the screw and the inner surface of the screw cap so that the stress is more uniform.
In the fifth embodiment, on the basis of the fourth embodiment, the upper baffle 8 extends downward to form a guide rod 10 disposed in the first spring 6, and the lower baffle extends upward to form a guide sleeve 11 slidably engaged with the guide rod 10. When the embodiment is used, the part in the spring of the upper baffle plate 8 at the upper end of the spring is downwards extended to form a guide rod 10, the part in the spring of the lower baffle plate 9 at the lower end of the spring is upwards extended to form a guide sleeve 11, the guide sleeve 11 is in sliding fit with the guide rod 10, and the guide rod plays a guide role in the compression process of the spring to prevent the spring from rubbing against the inner wall of the screw sleeve 3.
In a sixth embodiment, in the first embodiment, the internal pressure device 5 is composed of an upper air pressure sleeve 12, a lower air pressure sleeve 13, and an upper air pressure sleeve 12 and a lower air pressure sleeve 13, and the upper air pressure sleeve 12 and the lower air pressure sleeve 13 are in sliding sealing fit. When the screw cap is used, in the process of screwing the screw cap, due to sliding sealing fit between the upper air pressure sleeve 13 and the lower air pressure sleeve 13, air between the upper air pressure sleeve 12 and the lower air pressure sleeve 13 is compressed, after screwing, the air pressure pushes the upper air pressure sleeve 13 and the lower air pressure sleeve 13 to separate, and force is applied upwards and downwards under the action of the air pressure, so that the pressure applied by the internal pressure device 5 is increased at the threaded connection part of the screw and the screw sleeve 3 and the threaded connection part of the screw sleeve 3 and the screw cap 4, and the positioning is maintained.
In a seventh embodiment, on the basis of the sixth embodiment, a second spring 7 is connected between the upper air pressure sleeve 12 and the lower air pressure sleeve 13. In use, the embodiment is provided with the second spring 7 between the upper and lower air pressure sleeves 13, and applies larger force to the upper and lower air pressure sleeves 13, so that the embodiment is suitable for being used under the condition that the pure air pressure is insufficient to meet the driving force.
An eighth embodiment is the first embodiment, wherein the internal pressure device 5 is a cylinder 14, and an air port at an upper portion of the cylinder 14 is closed. In this embodiment, the internal pressure device 5 may be a cylinder 14, and a through hole communicating with the atmosphere is formed at the upper end of the cylinder 14, so as to prevent the upper part of air from being compressed during upward movement.
In a ninth embodiment, on the basis of the first to eighth embodiments, the internal pressure device 5 is in a non-operating state with its upper end projecting upward beyond the threaded sleeve 3, and the threaded cap 4 is formed by a nut 15 and a cap 16 on the upper end of the nut 15. In use, the internal pressure device 5 of this embodiment, in its initial state of non-installation, is intended to prevent the pressure member thereof from handling the stressed state for a long period of time, so that the pressure member should be kept in an unstressed state when non-installation is performed.
In the tenth embodiment, on the basis of the first to eighth embodiments, the upper end of the internal pressure device 5 is placed in the screw sleeve 3 in the non-operating state, and the screw cap 4 is composed of a nut 15, a cover 16 at the upper end of the nut 15, and a stopper 17 extending downward and fixed at the lower end of the cover 16. In use, to prevent the internal pressure device 5 from rocking within the sleeve 3 during uninstallation, a screw cap is screwed onto the screw thread on the upper part of the sleeve 3, with a stop 17 extending downwardly into the sleeve 3.
Claims (9)
1. The fastening method of the fixed torque pressure fastener adopts a device comprising a bolt (1), a nut (2), and is characterized by also comprising a screw sleeve (3), a screw cap (4) and an internal pressure device (5);
The screw cap (2) is screwed on the bolt (1), the screw rod at the upper end of the screw cap (2) is screwed with the screw sleeve (3), the outer surface of the upper part of the screw sleeve (3) is provided with external threads, the screw cap (4) is screwed on the external threads at the upper end of the screw sleeve (3), an internal pressure device (5) is arranged in the screw sleeve (3) between the screw cap (4) and the screw rod, and the internal pressure device (5) applies upward force to the screw cap (4) after the screw cap (4) is screwed, and downward force is applied to the bolt (1);
the internal pressure device (5) is an elastic component;
according to the fastening method, the nut (2) is prevented from loosening, the nut (2) is prevented from backing, the standard torque is determined, the threaded sleeve (3) is fastened according to the standard through the torque wrench, the threaded cover (4) is screwed to transmit force to the bolt (1) at the lower part and the nut (2) through the internal pressure device (5), and an elastic piece to be fastened is not subjected to the pressure at the moment, so that the elastic fastener is not easy to deform and is not easy to loosen in the process of fixing and fastening.
2. A method of fastening a constant torque pressure fastener according to claim 1, characterized in that the internal pressure means (5) is a first spring (6).
3. The fastening method of the constant torque pressure fastener according to claim 2, wherein the upper baffle (8) and the lower baffle (9) are arranged at two ends of the first spring (6).
4. A method of fastening a constant torque pressure fastener according to claim 3, characterised in that the upper flap (8) is provided with a downwardly extending guide bar (10) arranged in the first spring (6), and that the lower flap is provided with a guide sleeve (11) which is in sliding engagement with the guide bar (10).
5. The fastening method of a constant torque pressure fastener according to claim 1, wherein the internal pressure device (5) is composed of an upper air pressure sleeve (12) and a lower air pressure sleeve (13) and an upper air pressure sleeve (12) and a lower air pressure sleeve (13), and the upper air pressure sleeve (12) and the lower air pressure sleeve (13) are in sliding sealing fit.
6. The fastening method of a constant torque pressure fastener according to claim 5, characterized in that a second spring (7) is connected between the upper air pressure sleeve (12) and the lower air pressure sleeve (13).
7. A method of fastening a constant torque pressure fastener according to claim 1, characterized in that the internal pressure means (5) is a cylinder (14), the upper port of the cylinder (14) being closed.
8. A method of tightening a constant torque pressure fastener according to any one of claims 1-7, characterized in that the internal pressure means (5) in the rest condition extend upwardly beyond the sleeve (3), the screw cap (4) being formed by a nut (15) and a cap (16) at the upper end of the nut (15).
9. A method of tightening a constant torque pressure fastener according to any one of claims 1-7, characterized in that the internal pressure means (5) is placed in the screw sleeve (3) at its upper end in the rest condition, and that the screw cap (4) is formed by a nut (15), a cover (16) at the upper end of the nut (15) and a downwardly projecting stop (17) fixed at the lower end of the cover (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910691371.1A CN110259809B (en) | 2019-07-29 | 2019-07-29 | Fastening method of fixed torque pressure fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910691371.1A CN110259809B (en) | 2019-07-29 | 2019-07-29 | Fastening method of fixed torque pressure fastener |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110259809A CN110259809A (en) | 2019-09-20 |
| CN110259809B true CN110259809B (en) | 2024-05-17 |
Family
ID=67912198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910691371.1A Active CN110259809B (en) | 2019-07-29 | 2019-07-29 | Fastening method of fixed torque pressure fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110259809B (en) |
Citations (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH204318A (en) * | 1938-08-12 | 1939-04-30 | Julius Dipl Ing Jonas | Helical spring designed to secure the nut. |
| US6139113A (en) * | 1996-07-08 | 2000-10-31 | Seliga; Lynne M. | Vehicle rim assembly |
| CN201547106U (en) * | 2009-11-11 | 2010-08-11 | 沈阳黎明航空发动机(集团)有限责任公司 | Fixed-moment nut |
| WO2011111087A1 (en) * | 2010-03-08 | 2011-09-15 | Taneichi Kaoru | Force applying device |
| CN202212901U (en) * | 2011-08-02 | 2012-05-09 | 上海航天设备制造总厂 | Initial force debugging wrench for release rod |
| CN202391913U (en) * | 2011-12-12 | 2012-08-22 | 长葛市电力工业公司 | Preset pressure bolt |
| CN202991774U (en) * | 2012-11-27 | 2013-06-12 | 海通能源集团有限公司 | Sleeve-type spring screw |
| CN103398055A (en) * | 2013-08-08 | 2013-11-20 | 贵州航天精工制造有限公司 | Anti-shearing-type quick adjustment threaded connection assembly and connection method thereof |
| CN103644190A (en) * | 2013-12-26 | 2014-03-19 | 霍永久 | Anti-loose and anti-theft nut |
| CN103697041A (en) * | 2013-12-27 | 2014-04-02 | 中国第一汽车股份有限公司 | Fastening bolt assembly with spring |
| CN104002278A (en) * | 2014-06-18 | 2014-08-27 | 电子科技大学 | Bolt screwing device |
| CN203926761U (en) * | 2014-07-10 | 2014-11-05 | 宁波市天基隆智控技术有限公司 | A kind of for lining plate of coal grinder bolt seal assembly |
| CN204419822U (en) * | 2015-01-09 | 2015-06-24 | 刘兴丹 | A kind of sleeve bullet card bolt |
| CN204458770U (en) * | 2015-02-07 | 2015-07-08 | 宁波经济技术开发区甬港紧固件有限公司 | The clamping bolt that anti-loosing effect is good |
| CN105937538A (en) * | 2016-05-20 | 2016-09-14 | 李武彬 | Structure of locknut and locking adjusting method for locknut |
| CN106151232A (en) * | 2016-09-19 | 2016-11-23 | 浙江亦宸五金有限公司 | A kind of sealing bolt connecting fastening |
| JP2016211649A (en) * | 2015-05-08 | 2016-12-15 | 濱中ナット株式会社 | Sag preventive structure for bolt or nut, and bolt for the same |
| CN106640915A (en) * | 2017-02-07 | 2017-05-10 | 博罗县何氏模具制造有限公司 | Anti-loosening structure for press bar chock plug additionally-arranged thread sleeve |
| KR101787534B1 (en) * | 2016-08-08 | 2017-10-19 | 주식회사 티에프이 | Ball plunger of stroke expanding type |
| CN107654473A (en) * | 2017-10-27 | 2018-02-02 | 杨聪辉 | A kind of locking dirt-proof boot and dust-proof nut assembly |
| CN108361266A (en) * | 2018-04-25 | 2018-08-03 | 何长青 | A kind of double nut and spring washer combined type anti-loosing fixing device |
| CN109915456A (en) * | 2019-02-15 | 2019-06-21 | 海益（厦门）建材工业有限公司 | It is a kind of to determine torque nut component |
| CN109915464A (en) * | 2019-02-15 | 2019-06-21 | 海益（厦门）建材工业有限公司 | A kind of fast disassembly type determines torque nut component |
| CN210265456U (en) * | 2019-07-29 | 2020-04-07 | 河南四达电力设备股份有限公司 | Fixed torque pressure fastener device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100247266A1 (en) * | 2009-03-25 | 2010-09-30 | Tadeusz Staniszewski | Self-locking nut |
-
2019
- 2019-07-29 CN CN201910691371.1A patent/CN110259809B/en active Active
Patent Citations (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH204318A (en) * | 1938-08-12 | 1939-04-30 | Julius Dipl Ing Jonas | Helical spring designed to secure the nut. |
| US6139113A (en) * | 1996-07-08 | 2000-10-31 | Seliga; Lynne M. | Vehicle rim assembly |
| CN201547106U (en) * | 2009-11-11 | 2010-08-11 | 沈阳黎明航空发动机(集团)有限责任公司 | Fixed-moment nut |
| WO2011111087A1 (en) * | 2010-03-08 | 2011-09-15 | Taneichi Kaoru | Force applying device |
| CN202212901U (en) * | 2011-08-02 | 2012-05-09 | 上海航天设备制造总厂 | Initial force debugging wrench for release rod |
| CN202391913U (en) * | 2011-12-12 | 2012-08-22 | 长葛市电力工业公司 | Preset pressure bolt |
| CN202991774U (en) * | 2012-11-27 | 2013-06-12 | 海通能源集团有限公司 | Sleeve-type spring screw |
| CN103398055A (en) * | 2013-08-08 | 2013-11-20 | 贵州航天精工制造有限公司 | Anti-shearing-type quick adjustment threaded connection assembly and connection method thereof |
| CN103644190A (en) * | 2013-12-26 | 2014-03-19 | 霍永久 | Anti-loose and anti-theft nut |
| CN103697041A (en) * | 2013-12-27 | 2014-04-02 | 中国第一汽车股份有限公司 | Fastening bolt assembly with spring |
| CN104002278A (en) * | 2014-06-18 | 2014-08-27 | 电子科技大学 | Bolt screwing device |
| CN203926761U (en) * | 2014-07-10 | 2014-11-05 | 宁波市天基隆智控技术有限公司 | A kind of for lining plate of coal grinder bolt seal assembly |
| CN204419822U (en) * | 2015-01-09 | 2015-06-24 | 刘兴丹 | A kind of sleeve bullet card bolt |
| CN204458770U (en) * | 2015-02-07 | 2015-07-08 | 宁波经济技术开发区甬港紧固件有限公司 | The clamping bolt that anti-loosing effect is good |
| JP2016211649A (en) * | 2015-05-08 | 2016-12-15 | 濱中ナット株式会社 | Sag preventive structure for bolt or nut, and bolt for the same |
| CN105937538A (en) * | 2016-05-20 | 2016-09-14 | 李武彬 | Structure of locknut and locking adjusting method for locknut |
| KR101787534B1 (en) * | 2016-08-08 | 2017-10-19 | 주식회사 티에프이 | Ball plunger of stroke expanding type |
| CN106151232A (en) * | 2016-09-19 | 2016-11-23 | 浙江亦宸五金有限公司 | A kind of sealing bolt connecting fastening |
| CN106640915A (en) * | 2017-02-07 | 2017-05-10 | 博罗县何氏模具制造有限公司 | Anti-loosening structure for press bar chock plug additionally-arranged thread sleeve |
| CN107654473A (en) * | 2017-10-27 | 2018-02-02 | 杨聪辉 | A kind of locking dirt-proof boot and dust-proof nut assembly |
| CN108361266A (en) * | 2018-04-25 | 2018-08-03 | 何长青 | A kind of double nut and spring washer combined type anti-loosing fixing device |
| CN109915456A (en) * | 2019-02-15 | 2019-06-21 | 海益（厦门）建材工业有限公司 | It is a kind of to determine torque nut component |
| CN109915464A (en) * | 2019-02-15 | 2019-06-21 | 海益（厦门）建材工业有限公司 | A kind of fast disassembly type determines torque nut component |
| CN210265456U (en) * | 2019-07-29 | 2020-04-07 | 河南四达电力设备股份有限公司 | Fixed torque pressure fastener device |
Non-Patent Citations (3)
| Title |
|---|
| 胡旭.《机械设计原理及其工程实践研究》.中国原子能出版社,2019,第184页. * |
| 螺栓紧固力矩应用浅析;杨成;《化工管理》;20171231(第18期);第249页 * |
| 韩星.《汽车车身修复技术》.冶金工业出版社,2009,第25页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110259809A (en) | 2019-09-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207509146U (en) | A kind of stud fastening tool | |
| CN210265456U (en) | Fixed torque pressure fastener device | |
| CN204591925U (en) | A kind of bolt of easy disassembly | |
| CN110259809B (en) | Fastening method of fixed torque pressure fastener | |
| CN202301304U (en) | Bolt-type flexible lifting pin | |
| CN208919020U (en) | A kind of wieldy ring-groove-type fastener | |
| CN203756703U (en) | Prestress large hydraulic locking nut device | |
| CN106826641B (en) | Socket spanner not easy to shake | |
| CN201313246Y (en) | Special device for pulling and disassembling bearings with locking sleeve | |
| CN204025296U (en) | A kind of nut | |
| CN108214379A (en) | Anti-skidding screw wrench and the method for taking out wood screw | |
| CN205478843U (en) | Stop nut | |
| CN104019110A (en) | Nut | |
| CN201158016Y (en) | Multifunctional universal hexagonal movable open spanner | |
| CN202344473U (en) | Torsion reacting force device of hexagon bolt spanner | |
| CN209062953U (en) | A kind of tool for nut dismounting and installation | |
| CN203051364U (en) | Bus duct attachment bolt | |
| CN213598357U (en) | Tensile type engine connecting rod bolt | |
| CN221195666U (en) | Novel nut for preventing bolt from rusting | |
| CN201604122U (en) | Electric impact wheel drawing device | |
| CN221394057U (en) | Reverse thrust tensioning device | |
| CN110878791A (en) | Nut punching point anti-loosening device and method | |
| CN217070630U (en) | Quick fixed frock during mounting of tray self-locking nut | |
| CN108068039A (en) | A kind of Combined detachable allen wrench | |
| CN211761098U (en) | Multifunctional quick wrench |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Changge City, Xuchang City, Henan Province, 461500 town Xingshan Avenue in the middle (electric ceramics industrial park) Applicant after: FOUR OF HENAN ELECTRIC POWER EQUIPMENT Co.,Ltd. Applicant after: HENAN SIDA ELECTRIC POWER TECHNOLOGY RESEARCH INSTITUTE Co.,Ltd. Address before: 461500 Longshan Avenue, Houhe Town, Changge City, Xuchang City, Henan Province (Electromagnetic and Electrical Industrial Park) Applicant before: FOUR OF HENAN ELECTRIC POWER EQUIPMENT Co.,Ltd. Applicant before: HENAN SIDA ELECTRIC POWER TECHNOLOGY RESEARCH INSTITUTE Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20240421 Address after: Building C2, 5G Application Industrial Park, Intersection of Weiwu Avenue and Longchang Road, Urban Rural Integration Demonstration Zone, Xuchang City, Henan Province, 461000 Applicant after: Henan Sida Digital Security Technology Co.,Ltd. Country or region after: China Applicant after: FOUR OF HENAN ELECTRIC POWER EQUIPMENT Co.,Ltd. Address before: 461500 middle section of Xingshan Road, Changge, Xuchang, Henan province (electrical porcelain Industrial Park) Applicant before: FOUR OF HENAN ELECTRIC POWER EQUIPMENT Co.,Ltd. Country or region before: China Applicant before: HENAN SIDA ELECTRIC POWER TECHNOLOGY RESEARCH INSTITUTE Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |