CN114754191B - Detachable valve rod nut locking device - Google Patents
Detachable valve rod nut locking device Download PDFInfo
- Publication number
- CN114754191B CN114754191B CN202210429936.0A CN202210429936A CN114754191B CN 114754191 B CN114754191 B CN 114754191B CN 202210429936 A CN202210429936 A CN 202210429936A CN 114754191 B CN114754191 B CN 114754191B
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- Prior art keywords
- nut
- valve stem
- nut sleeve
- locking device
- clamping
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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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
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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
- 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
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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
- 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
- F16B39/04—Locking of screws, bolts or nuts in which the locking takes place after screwing down with a member penetrating the screw-threaded surface of at least one part, e.g. a pin, a wedge, cotter-pin, screw
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
本发明公开了一种可拆卸式阀杆螺母锁紧装置，涉及阀门技术领域，本发明包括阀体以及活动设置在阀体上的阀杆主体，阀杆主体顶部活动设置有螺母套和调节轮，螺母套与调节轮之间设置有锁紧组件，螺母套的内部开设有空腔，锁紧组件包括卡紧部件和定位部件，卡紧部件包括螺纹段、拉杆、限位板、卡柱和抵触弹簧，螺纹段的直径小于阀杆主体的直径，螺母套与螺纹段螺纹连接，螺纹段与阀杆本体顶端固定连接，限位板活动设置在空腔内，限位板的一侧与拉杆固定连接。本发明为一种可拆卸式阀杆螺母锁紧装置，通过设置锁紧组件，能够将螺母套、调节轮和阀杆主体之间进行稳定连接，防止松动，同时也方便对阀杆主体进行拆卸。
The invention discloses a detachable valve stem nut locking device and relates to the technical field of valves. The invention includes a valve body and a valve stem main body movably arranged on the valve body. A nut sleeve and an adjustment wheel are movably arranged on the top of the valve stem main body. , a locking assembly is provided between the nut sleeve and the adjusting wheel. There is a cavity inside the nut sleeve. The locking assembly includes a clamping component and a positioning component. The clamping component includes a threaded section, a pull rod, a limit plate, a clamping column and The friction spring, the diameter of the threaded section is smaller than the diameter of the valve stem body, the nut sleeve is threadedly connected to the threaded section, the threaded section is fixedly connected to the top of the valve stem body, the limiter plate is movably set in the cavity, one side of the limiter plate is connected to the pull rod Fixed connection. The invention is a detachable valve stem nut locking device. By arranging the locking assembly, the nut sleeve, the adjusting wheel and the valve stem body can be stably connected to prevent loosening, and it also facilitates the disassembly of the valve stem body. .
Description
Technical Field
The invention relates to the technical field of valves, in particular to a detachable valve rod nut locking device.
Background
The valve is a control component in a fluid conveying system, has the functions of stopping, adjusting, guiding, stabilizing, shunting, overflow, pressure relief and the like, can be used for controlling various types of fluid flow valves of air, water, steam, various corrosive media, slurry, liquid metal and the like, is widely used due to the advantages of small fluid flow resistance, labor saving on and off of the valve, high action sensitivity, high reliability and the like, and is a pipeline accessory for opening and closing a pipeline, controlling the flow direction, adjusting and controlling parameters (temperature, pressure and flow) of conveying media. According to their functions, they can be classified into a shut-off valve, a regulating valve, etc.
The stop valve is also called a stop valve, and belongs to a forced sealing valve, so that when the valve is closed, pressure is applied to the valve clack to force the sealing surface not to leak. When a medium enters the valve from the lower part of the valve clack, the resistance which needs to be overcome by the operation force is the friction force of the valve rod and the filler and the thrust generated by the pressure of the medium, and the force for closing the valve is larger than the force for opening the valve, so that the diameter of the valve rod is larger, otherwise, the valve rod is in a bending fault.
In the current market, the valve rod nut that the stop valve includes generally has by nut cap and valve rod constitution, carry out threaded connection through nut cap and valve rod to carry out the chucking with the regulating wheel of stop valve and fix, make things convenient for the regulating wheel to drive the valve rod and rotate, but, current stop valve is because multiple reasons such as flow resistance, velocity of flow, pressure's change etc. can make the stop valve produce the vibration, causes easily that the axial displacement produces between nut cap and the valve rod, thereby leads to the regulating wheel to take place not hard up, influences the use, for this reason, now proposes a detachable valve rod nut locking device.
Disclosure of Invention
The invention mainly aims to provide a detachable valve rod nut locking device, which can effectively solve the problems that the prior stop valve in the background art can vibrate due to various reasons, such as flow resistance, flow velocity, pressure change and the like, and can easily cause axial movement between a nut cap and a valve rod, so that an adjusting wheel is loosened to influence use.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the detachable valve rod nut locking device comprises a valve body and a valve rod main body movably arranged on the valve body, wherein a nut sleeve and an adjusting wheel are movably arranged at the top of the valve rod main body, a locking assembly is arranged between the nut sleeve and the adjusting wheel, and a cavity is formed in the nut sleeve;
the locking assembly comprises a clamping component and a positioning component;
the clamping component comprises a threaded section, a pull rod, a limiting plate, a clamping column and a collision spring, wherein the diameter of the threaded section is smaller than that of the valve rod main body, the nut sleeve is in threaded connection with the threaded section, the threaded section is fixedly connected with the top end of the valve rod main body, the limiting plate is movably arranged in the cavity, one side of the limiting plate is fixedly connected with the pull rod, the other end of the limiting plate is fixedly connected with the clamping column, a fixing groove matched with the clamping column is formed in the side face of the threaded section, when the nut sleeve is in threaded connection with the threaded section, the clamping column can be just aligned with the fixing groove when the nut sleeve is rotated to be in contact with the top of the adjusting wheel, one end of the collision spring is fixedly connected with the side face of the limiting plate, and the other end of the collision spring is fixedly connected with the inner wall of the cavity, so that locking can be carried out between the nut sleeve and the threaded section;
the locating part includes screwed ring, extension spring and fixture block, screwed ring and the bottom fixed connection of nut cover, the spacing groove with screwed ring looks adaptation has been seted up at the top of regulating wheel, during screwed ring rotates to spacing groove bottom, the fixture block can just block mutually with the draw-in groove, the mounting groove has been seted up to the inner wall of spacing groove, the one end and the inner wall fixed connection of mounting groove of extension spring, the other end and the fixture block fixed connection of extension spring, the draw-in groove with the fixture block looks adaptation has been seted up to the side of screwed ring, can fix a position between screwed ring and the regulating wheel.
Preferably, the side of limiting plate is provided with the pulley, the spout with pulley looks adaptation has been seted up to the cavity inner wall, can improve the flexibility that the limiting plate removed.
Preferably, the number of the clamping components is two, and the two clamping components are symmetrically distributed along the vertical central axis of the thread section, wherein the number of the clamping columns in each clamping component is two, and the two clamping columns are symmetrically distributed along the horizontal central axis of the limiting plate, so that the stability of locking between the nut sleeve and the thread section can be improved.
Preferably, the number of the positioning parts is two, and the two positioning parts are symmetrically distributed along the vertical central axis of the thread section, so that the connection stability between the thread ring and the adjusting wheel can be improved.
Preferably, one end of the pull rod, which is far away from the limiting plate, extends out of the nut sleeve, and a check bolt is arranged on the pull rod, and a threaded hole matched with the nut sleeve is formed in the outer side of the nut sleeve, so that the pull rod is conveniently locked, and movement is prevented.
Preferably, the bottom fixedly connected with holding ring of regulating wheel, the constant head tank with holding ring looks adaptation has been seted up at the top of valve rod body, can fix a position the regulating wheel.
Preferably, the bottom fixedly connected with clamping ring of nut cover, the chucking groove with clamping ring looks adaptation has been seted up at the top of regulating wheel, can fix a position the thread bush to carry out mutual block to the regulating wheel.
Preferably, the top of nut cover has seted up the oiling mouth, be provided with the sealing plug on the oiling mouth, oiling mouth and nut cover inboard intercommunication are convenient for carry out the oiling in the nut cover to can lubricate the screw thread section.
Preferably, an annular groove is formed in the outer ring side of the threaded ring, the longitudinal section of the annular groove is in a right triangle shape, and the clamping block can conveniently slide outside the threaded ring through the annular groove.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the clamping part is arranged, the adjusting wheel sleeve is firstly arranged on the outer ring side of the threaded section, the pull rod is pulled, so that the pull rod drives the limiting block to move, the clamping column is driven to move, the clamping column can be separated from the inner side of the nut sleeve, the abutting spring is in a compressed state under the extrusion of the limiting block, the nut sleeve is in threaded connection with the threaded section, the pull rod is loosened until the bottom of the nut sleeve is rotated to be attached to the top of the adjusting wheel, the limiting block moves under the reset action of the abutting spring, the clamping column can be driven to move until the clamping column is clamped with the fixing groove, the positioning between the nut sleeve and the threaded section is completed, the nut sleeve and the threaded section are prevented from rotating, the pull rod can be fixed by screwing the anti-loosening bolt, and the connection looseness between the nut sleeve and the threaded section is prevented.
2. According to the invention, the locating component is arranged, the threaded ring can be clamped with the limit groove when the nut sleeve moves downwards, when the bottom end of the threaded ring is contacted with the clamping block, the clamping ring can move inwards towards the mounting groove under the action of the annular groove, the tension spring is in a compressed state until the threaded ring moves to the bottom of the limit groove, and the clamping groove is opposite to the clamping block, so that the clamping block can be mutually clamped with the clamping groove under the reset action of the tension spring, the connection and the location between the threaded ring and the adjusting wheel are completed, the nut sleeve and the adjusting nut can be clamped by arranging the clamped threaded ring, the connection stability among the adjusting wheel, the nut sleeve and the threaded section is further improved, and looseness is prevented.
Drawings
FIG. 1 is a front view of a removable valve stem nut locking device of the present invention;
FIG. 2 is a front cross-sectional view of a removable valve stem nut locking device of the present invention;
FIG. 3 is an enlarged view of the structure of the removable valve stem nut locking device of the present invention at A in FIG. 2;
FIG. 4 is an enlarged view of the structure of the removable valve stem nut locking device of the present invention at B in FIG. 3;
FIG. 5 is an enlarged view of the structure of the removable valve stem nut locking device of the present invention at C in FIG. 3;
fig. 6 is a perspective view of the adjusting wheel structure of the detachable valve stem nut locking device of the invention.
In the figure: 1. a valve body; 2. a valve stem body; 3. a nut sleeve; 4. an adjusting wheel; 5. a cavity; 6. a threaded section; 7. a pull rod; 8. a limiting plate; 9. a clamping column; 10. a contact spring; 11. a threaded ring; 12. a tension spring; 13. a clamping block; 14. a limit groove; 15. a mounting groove; 16. a pulley; 17. a lockbolt; 18. a positioning ring; 19. a positioning groove; 20. a clamping ring; 21. a clamping groove; 22. an oil filling port; 23. and (5) sealing plugs.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1-6, the invention discloses a detachable valve rod nut locking device, which comprises a valve body 1 and a valve rod main body 2 movably arranged on the valve body 1, wherein a nut sleeve 3 and an adjusting wheel 4 are movably arranged at the top of the valve rod main body 2, a locking component is arranged between the nut sleeve 3 and the adjusting wheel 4, and a cavity 5 is formed in the nut sleeve 3;
the locking assembly comprises a clamping component and a positioning component;
the clamping component comprises a threaded section 6, a pull rod 7, a limiting plate 8, a clamping column 9 and a collision spring 10, the diameter of the threaded section 6 is smaller than that of the valve rod main body 2, the nut sleeve 3 is in threaded connection with the threaded section 6, the threaded section 6 is fixedly connected with the top end of the valve rod main body, the limiting plate 8 is movably arranged in the cavity 5, one side of the limiting plate 8 is fixedly connected with the pull rod 7, the other end of the limiting plate 8 is fixedly connected with the clamping column 9, a fixing groove matched with the clamping column 9 is formed in the side face of the threaded section 6, when the nut sleeve 3 is in threaded connection with the threaded section 6, the clamping column 9 can be just aligned with the fixing groove when the nut sleeve 3 is rotated to be in contact with the top of the adjusting wheel 4, one end of the collision spring 10 is fixedly connected with the side face of the limiting plate 8, and the other end of the collision spring 10 is fixedly connected with the inner wall of the cavity 5, and locking can be carried out between the nut sleeve 3 and the threaded section 6;
the locating component includes screwed ring 11, extension spring 12 and fixture block 13, screwed ring 11 and the bottom fixed connection of nut cover 3, the spacing groove 14 with screwed ring 11 looks adaptation has been seted up at the top of regulating wheel 4, screwed ring 11 rotates to the spacing groove 14 bottom time, fixture block 13 can just block mutually with the draw-in groove, mounting groove 15 has been seted up to the inner wall of spacing groove 14, the inner wall fixed connection of one end and mounting groove 15 of extension spring 12, the other end and the fixture block 13 fixed connection of extension spring 12, the draw-in groove with fixture block 13 looks adaptation has been seted up to the side of screwed ring 11, can fix a position between screwed ring 11 and regulating wheel 4.
The pulley 16 is arranged on the side face of the limiting plate 8, the sliding groove matched with the pulley 16 is formed in the inner wall of the cavity 5, and therefore the flexibility of movement of the limiting plate 8 can be improved.
The number of the clamping components is two, the two clamping components are symmetrically distributed along the vertical central axis of the threaded section 6, the number of the clamping columns 9 in each clamping component is two, the two clamping columns 9 are symmetrically distributed along the horizontal central axis of the limiting plate 8, and the locking stability between the nut sleeve 3 and the threaded section 6 can be improved.
The number of the positioning parts is two, and the two positioning parts are symmetrically distributed along the vertical central axis of the thread section 6, so that the connection stability between the thread ring 11 and the adjusting wheel 4 can be improved.
One end of the pull rod 7, which is far away from the limiting plate 8, extends out of the nut sleeve 3, and a check bolt 17 is arranged on the pull rod 7, and a threaded hole matched with the nut sleeve 3 is formed in the outer side of the nut sleeve 3, so that the pull rod 7 is conveniently locked, and movement is prevented.
The bottom fixedly connected with holding ring 18 of regulating wheel 4, the constant head tank 19 with holding ring 18 looks adaptation has been seted up at the top of valve rod body, can fix a position regulating wheel 4.
The bottom fixedly connected with chucking ring 20 of nut cover 3, chucking groove 21 with chucking ring 20 looks adaptation has been seted up at the top of regulating wheel 4, can fix a position the thread bush to carry out mutual block to regulating wheel 4.
An oil filling port 22 is formed in the top of the nut sleeve 3, a sealing plug 23 is arranged on the oil filling port 22, and the oil filling port 22 is communicated with the inner side of the nut sleeve 3, so that oil can be filled in the nut sleeve 3 conveniently, and the thread section 6 can be lubricated.
An annular groove is formed in the outer ring side of the threaded ring 11, the longitudinal section of the annular groove is in a right triangle shape, and the clamping block 13 can conveniently slide outside the threaded ring 11 through the annular groove.
The working principle of the invention is as follows: when the nut sleeve 3 is used, firstly, the adjusting wheel 4 is sleeved on the outer ring side of the threaded section 6, the pull rod 7 is pulled, the pull rod 7 drives the limiting block to move, and accordingly the clamping column 9 is driven to move, the clamping column 9 can be separated from the inner side of the nut sleeve 3, the abutting spring 10 is in a compressed state under the extrusion of the limiting block, the nut sleeve 3 is in threaded connection with the threaded section 6, the pull rod 7 is loosened until the nut sleeve 3 rotates to the bottom of the device to be attached to the top of the adjusting wheel 4, at the moment, the limiting block moves under the reset action of the abutting spring 10, the clamping column 9 can be driven to move until the clamping column 9 is clamped with the fixing groove, at the same time, the threaded ring 11 can be clamped with the limiting groove 14 when the nut sleeve 3 moves downwards, when the bottom of the threaded ring 11 is contacted with the clamping block 13, the clamping ring can move into the mounting groove 15 under the action of the annular groove, at the moment, the stretching spring 12 is in a compressed state until the threaded ring 11 moves to the bottom of the limiting groove 14, at the moment, the clamping groove is opposite to the position of the clamping block 13, the clamping groove can drive the clamping block 13 to reset action of the stretching spring 12, and the clamping groove 11 to be clamped with the clamping groove to the fixing groove 4, and the positioning ring 4 to be mutually connected with the adjusting wheel.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides a detachable valve rod nut locking device, includes valve body (1) and activity setting valve rod main part (2) on valve body (1), its characterized in that: the novel valve is characterized in that a nut sleeve (3) and an adjusting wheel (4) are movably arranged at the top of the valve rod main body (2), a locking assembly is arranged between the nut sleeve (3) and the adjusting wheel (4), and a cavity (5) is formed in the nut sleeve (3);
the locking assembly comprises a clamping component and a positioning component;
the clamping component comprises a threaded section (6), a pull rod (7), a limiting plate (8), a clamping column (9) and a collision spring (10), wherein the nut sleeve (3) is in threaded connection with the threaded section (6), the threaded section (6) is fixedly connected with the top end of the valve rod body, the limiting plate (8) is movably arranged in the cavity (5), one side of the limiting plate (8) is fixedly connected with the pull rod (7), the other end of the limiting plate (8) is fixedly connected with the clamping column (9), a fixing groove matched with the clamping column (9) is formed in the side face of the threaded section (6), one end of the collision spring (10) is fixedly connected with the side face of the limiting plate (8), and the other end of the collision spring (10) is fixedly connected with the inner wall of the cavity (5);
the locating component includes screwed ring (11), extension spring (12) and fixture block (13), the bottom fixed connection of screwed ring (11) and nut cover (3), spacing groove (14) with screwed ring (11) looks adaptation have been seted up at the top of regulating wheel (4), mounting groove (15) have been seted up to the inner wall of spacing groove (14), the inner wall fixed connection of one end and mounting groove (15) of extension spring (12), the other end and the fixture block (13) fixed connection of extension spring (12), the draw-in groove with fixture block (13) looks adaptation has been seted up to the side of screwed ring (11).
2. A removable valve stem nut locking device as defined in claim 1, wherein: the side of limiting plate (8) is provided with pulley (16), the spout with pulley (16) looks adaptation is seted up to cavity (5) inner wall.
3. A removable valve stem nut locking device as defined in claim 1, wherein: the number of the clamping components is two, the two clamping components are symmetrically distributed along the vertical central axis of the threaded section (6), the number of the clamping columns (9) in each clamping component is two, and the two clamping columns (9) are symmetrically distributed along the horizontal central axis of the limiting plate (8).
4. A removable valve stem nut locking device as defined in claim 1, wherein: the number of the positioning parts is two, and the two positioning parts are symmetrically distributed along the vertical central axis of the thread section (6).
5. A removable valve stem nut locking device as defined in claim 1, wherein: one end of the pull rod (7) far away from the limiting plate (8) extends out of the nut sleeve (3), a check bolt (17) is arranged on the pull rod (7), and a threaded hole matched with the nut sleeve (3) is formed in the outer side of the nut sleeve (3).
6. A removable valve stem nut locking device as defined in claim 1, wherein: the bottom fixedly connected with holding ring (18) of regulating wheel (4), constant head tank (19) with holding ring (18) looks adaptation are seted up at the top of valve rod body.
7. A removable valve stem nut locking device as defined in claim 1, wherein: the bottom fixedly connected with chucking ring (20) of nut cover (3), chucking groove (21) with chucking ring (20) looks adaptation are seted up at the top of regulating wheel (4).
8. A removable valve stem nut locking device as defined in claim 1, wherein: an oil filling port (22) is formed in the top of the nut sleeve (3), a sealing plug (23) is arranged on the oil filling port (22), and the oil filling port (22) is communicated with the inner side of the nut sleeve (3).
9. A removable valve stem nut locking device as defined in claim 1, wherein: an annular groove is formed in the outer ring side of the threaded ring (11), and the longitudinal section of the annular groove is in a right triangle shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210429936.0A CN114754191B (en) | 2022-04-22 | 2022-04-22 | Detachable valve rod nut locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210429936.0A CN114754191B (en) | 2022-04-22 | 2022-04-22 | Detachable valve rod nut locking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114754191A CN114754191A (en) | 2022-07-15 |
| CN114754191B true CN114754191B (en) | 2023-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210429936.0A Active CN114754191B (en) | 2022-04-22 | 2022-04-22 | Detachable valve rod nut locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114754191B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115234564B (en) * | 2022-08-03 | 2024-06-21 | 管小敏 | Anti-loosening nut |
| CN118572441B (en) * | 2024-07-31 | 2024-10-29 | 深圳市华银兴业科技有限公司 | Durable connecting wire |
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| CN213271090U (en) * | 2020-08-07 | 2021-05-25 | 温州山维阀门制造有限公司 | High-strength gate valve |
| CN213117082U (en) * | 2020-08-13 | 2021-05-04 | 温州市春泰标准件有限公司 | Anti-loosening screw fastener |
| CN214838212U (en) * | 2021-03-09 | 2021-11-23 | 盐城东洁石油机械有限公司 | High-fastening wear-resistant valve rod nut |
| CN215172281U (en) * | 2021-06-01 | 2021-12-14 | 浙江时代铸造有限公司 | Nodular cast iron valve |
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| Publication number | Publication date |
|---|---|
| CN114754191A (en) | 2022-07-15 |
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Denomination of invention: A detachable stem nut locking device Granted publication date: 20231114 Pledgee: Jiangsu Dafeng Rural Commercial Bank Co.,Ltd. Pledgor: YANCHENG STARD MINLI VALVES CO.,LTD. Registration number: Y2025980053646 |