CN210034460U - Anti-lost and misoperation stop valve - Google Patents
Anti-lost and misoperation stop valve Download PDFInfo
- Publication number
- CN210034460U CN210034460U CN201920293004.1U CN201920293004U CN210034460U CN 210034460 U CN210034460 U CN 210034460U CN 201920293004 U CN201920293004 U CN 201920293004U CN 210034460 U CN210034460 U CN 210034460U
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- Prior art keywords
- nut
- valve gap
- valve
- locking
- gland
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- Expired - Fee Related
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Abstract
The utility model provides a prevent losing, maloperation stop valve, includes valve rod, valve gap support, gland and valve gap, and the valve rod passes valve gap support, gland and valve gap from top to bottom in proper order, and wherein valve gap support and valve gap fixed connection, gland and valve gap fixed connection, threaded connection have upper nut and lower nut on the valve rod, and upper nut stretches into the upper end of valve gap support, lower nut stretch into the lower extreme of valve gap support, and upper nut and lower nut all with the valve gap support rotation be connected, through dentate structure lock between upper nut and the lower nut, be equipped with the hand wheel on the valve gap support, hand wheel and upper nut fixed connection, the fixed boss that is located valve gap support below that is equipped with of lower nut lower extreme, be equipped with restriction lower nut pivoted locking mechanism between lower nut and the gland.
Description
Technical Field
The utility model belongs to the technical field of the valve technique and specifically relates to a prevent losing, maloperation automatic stop valve.
Background
The valve is a basic part in a pipeline system, and the hand wheel is a part for linking the valve and the pipeline and mainly plays a role in controlling the switch. At present, the stop valves known to the public mostly adopt nuts to fix hand wheels, and the hand wheels are easy to disassemble and rotate, so that the outdoor valve hand wheels are frequently lost or randomly rotated, and accidents or unnecessary resource waste is caused; or the hand wheel is directly welded, and the destructive connection mode causes great inconvenience for maintenance and replacement.
SUMMERY OF THE UTILITY MODEL
To the above situation, in order to overcome the defects of the prior art, the objective of the present invention is to provide a stop valve with anti-lost and anti-misoperation functions from the safety viewpoint.
Its solution is, a prevent losing, maloperation stop valve, including valve rod, valve gap support, gland and valve gap, valve rod from top to bottom passes valve gap support, gland and valve gap in proper order, and wherein valve gap support and valve gap fixed connection, gland and valve gap fixed connection, its characterized in that: the upper nut and the lower nut are connected to the valve rod in a threaded mode, the upper nut extends into the upper end of the valve cover support, the lower nut extends into the lower end of the valve cover support, the upper nut and the lower nut are connected with the valve cover support in a rotating mode, the upper nut and the lower nut are buckled through a tooth-shaped structure, a hand wheel is arranged on the valve cover support and fixedly connected with the upper nut, a boss located below the valve cover support is fixedly arranged at the lower end of the lower nut, and a locking mechanism for limiting the lower nut to rotate is arranged between the lower nut and the packing gland.
Preferably, a polygonal groove is formed in the upper end face of the hand wheel, and a polygonal boss tightly matched with the polygonal groove is fixedly arranged at the upper end of the upper nut.
Preferably, the polygonal groove and the polygonal boss are both regular polygons.
Preferably, the locking mechanism comprises a lining sleeved on the valve rod, the lining is fixedly connected with the upper surface of the packing gland, the lining is in threaded connection with a locking nut, a friction plate A is fixedly arranged on the upper end face of the locking nut, an annular groove is formed in the lower surface of the boss, a friction plate B is fixedly arranged in the annular groove, and after the locking nut rotates and rises to enter the annular groove, the friction plate A and the friction plate B are compressed tightly to form friction locking.
Preferably, the locking mechanism, including fixed locking pincers of establishing on the gland, the locking pincers include a pair of alternately articulated tong arm, two tong arm articulated department and gland fixed connection, two the one end that the tong arm is close to the valve rod all is equipped with the arc mouth, two the arc mouth forms the keeping in touch of centre gripping valve rod, and fixedly connected with pressure spring between the one end of valve rod is kept away from to two tong arm, and one is equipped with the latch hook in two tong arm, and another is equipped with and locks hook complex hasp, and latch hook, hasp all establish the one end that deviates from the valve rod at the tong arm.
Preferably, the jaw is fixedly provided with a non-slip pad.
The utility model has the advantages that: the mode of adopting upper and lower nut combination has replaced the method of original welding or screw thread fixed hand wheel to increase locking mechanism, locking mechanism's position sets up comparatively secretly, has effectively played the effect of preventing losing, preventing maloperation, and overall structure is simple easily to operate.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is an enlarged view of the point I in the structural schematic diagram of the present invention;
FIG. 3 is a schematic structural view of the locking mechanism of the present invention using locking pliers;
fig. 4 is a schematic structural view of the locking pliers, wherein the locking pliers are in a clasping state.
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.
Given by fig. 1-4, a prevent losing, maloperation stop valve, including valve rod 1, valve gap support 6, gland 11 and valve gap 12, valve rod 1 from top to bottom passes valve gap support 6, gland 11 and valve gap 12 in proper order, and wherein valve gap support 6 and valve gap 12 fixed connection, gland 11 and valve gap 12 fixed connection, its characterized in that: threaded connection has upper nut 5 and lower nut 7 on the valve rod 1, and upper nut 5 stretches into the upper end of valve gap support 6, lower nut 7 stretch into the lower extreme of valve gap 12 support 6, and upper nut 5 all rotates with valve gap support 6 with lower nut 7 to be connected, through dentate structure lock between upper nut 5 and the lower nut 7, is equipped with hand wheel 4 on the valve gap support 6, hand wheel 4 and upper nut 5 fixed connection, the fixed boss that is located valve gap support 6 below that is equipped with of lower nut 7 lower extreme, when upwards rotating hand wheel 4, the boss prevents hand wheel 4 rebound under the restriction of valve gap support 6, be equipped with restriction lower nut 7 pivoted locking mechanism between lower nut 7 and gland 11.
The upper end face of the hand wheel 4 is provided with a polygonal groove 3, and the upper end of the upper nut 5 is fixedly provided with a polygonal boss 2 tightly matched with the polygonal groove 3. When the hand wheel 4 is rotated, the planes of the polygonal boss 2 transmit torque to drive the upper nut 5 to rotate, and when the hand wheel 4 is rotated downwards, the hand wheel 4 is prevented from moving downwards due to the common limitation of the polygonal boss 2 and the bracket 6 of the valve cover 12.
The polygonal groove 3 and the polygonal boss 2 are both regular polygons. Ensures that each surface is uniformly stressed, and has longer service life compared with an irregular polygon.
Locking mechanism establishes inside lining 10 on valve rod 1 including the cover, inside lining 10 and gland 11 upper surface fixed connection, inside lining 10 threaded connection have lock nut 9, and lock nut 9's the fixed friction disc A13 that is equipped with of up end is equipped with annular 14 on the boss lower surface, and annular 14 internal fixation is equipped with friction disc B15, and after lock nut 9 rotated and rises and gets into annular 14, friction disc A13 compressed tightly with friction disc B15 and constitutes the friction locking promptly. Friction plate a13 and friction plate B15 lock the valve by friction torque generated when they rotate relatively.
The locking mechanism comprises locking pliers fixedly arranged on a packing gland 11, the locking pliers comprise a pair of pliers arms 16 hinged in a crossed mode, the hinged positions of the two pliers arms 16 are fixedly connected with the packing gland 11, an arc-shaped opening is formed in one end, close to a valve rod 1, of each pliers arm 16, the arc-shaped openings form a jaw 17 for clamping the valve rod 1, a pressure spring 18 is fixedly connected between one ends, far away from the valve rod 1, of the two pliers arms 16, a lock hook 19 is arranged in one of the two pliers arms 16, a lock catch 20 matched with the lock hook 19 is arranged in the other pliers arm, and the lock hook 19 and the lock catch 20 are arranged at one end, far away from the valve. One ends of two clamp arms of the locking clamp, which are far away from the valve rod 1, are always subjected to the elasticity of the pressure spring 18, so that the two sides tend to open, and the opening starts to enable the jaw 17 to clasp the valve rod 1, so that the locking function is realized; when the staff compresses the spring to fold the two forceps arms and buckles the latch hook 18 on the latch 19, the jaw 17 is opened, the valve rod 1 is released, and the valve rod 1 can rotate and lift at the moment.
The jaw 17 is fixedly provided with a non-slip pad 21. When the jaw 17 tightly holds the valve rod 1, the anti-slip pad 21 plays a role in shock absorption and skid resistance, resistance between the jaw 17 and the valve rod is increased, and slipping and dislocation in a locking process are prevented.
The utility model discloses when using, rotate hand wheel 4, drive nut 5 and rotate, nut 5 drives lower nut 7 and rotates, because valve rod 1 support is spacing to the boss on lower nut 7, make nut 5 and lower nut 7 can not the rebound, because valve rod 1 support and hand wheel 4 are common to the spacing of polygon boss 2 on the nut 5, make nut 5 and lower nut 7 can not the rebound, so nut 5 and lower nut 7 can only rotate, thereby valve rod 1 rises or descends and open or close the valve under the vice effect of spiral, if demolish hand wheel 4, must wholly demolish valve gap 12, the risk that hand wheel 4 lost has been reduced. The locking nut 9 is rotated to enable the locking nut to rise into the annular groove 14, the friction plate A13 is in contact with the friction plate B15 and is compressed to form friction locking, the upper nut 5 and the hand wheel 4 cannot rotate when the lower nut 7 cannot rotate, the purpose of preventing misoperation in valve locking is achieved, accidents and resource waste are avoided, the locking nut is rotated reversely to enable the friction plate A13 to be not in contact with the friction plate B15, and then the hand wheel 4 can normally control the opening and closing of the valve.
The utility model has the advantages that: the mode of adopting upper and lower nut combination has replaced the method of original welding or screw thread fixed hand wheel to increase locking mechanism, locking mechanism's position sets up comparatively secretly, has effectively played the effect of preventing losing, preventing maloperation, and overall structure is simple easily to operate.
The above-mentioned embodiments are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design concept of the present invention should be included in the protection scope defined by the claims of the present invention.
Claims (6)
1. The utility model provides a prevent losing, maloperation stop valve, includes valve rod (1), valve gap support (6), gland (11) and valve gap (12), valve rod (1) from top to bottom passes valve gap support (6), gland (11) and valve gap (12) in proper order, wherein valve gap support (6) and valve gap (12) fixed connection, gland (11) and valve gap (12) fixed connection, its characterized in that: threaded connection has upper nut (5) and lower nut (7) on valve rod (1), and upper nut (5) stretches into the upper end of valve gap support (6), and lower nut (7) stretch into the lower extreme of valve gap (12) support (6), and upper nut (5) and lower nut (7) all rotate with valve gap support (6) and be connected, through the dentate structure lock between upper nut (5) and lower nut (7), are equipped with hand wheel (4) on valve gap support (6), hand wheel (4) and upper nut (5) fixed connection, the fixed boss that is located valve gap support (6) below that is equipped with of lower nut (7) lower extreme, be equipped with between lower nut (7) and gland (11) and restrict lower nut (7) pivoted locking mechanism.
2. The anti-loss and anti-misoperation stop valve according to claim 1, wherein a polygonal groove (3) is formed in the upper end face of the hand wheel (4), and a polygonal boss (2) tightly matched with the polygonal groove (3) is fixedly arranged at the upper end of the upper nut (5).
3. The loss-proof and misoperation-proof stop valve according to claim 2, wherein the polygonal groove (3) and the polygonal boss (2) are regular polygons.
4. The loss-preventing and misoperation-preventing stop valve according to claim 1, wherein the locking mechanism comprises a lining (10) sleeved on the valve rod (1), the lining (10) is fixedly connected with the upper surface of the packing gland (11), the lining (10) is in threaded connection with a locking nut (9), a friction plate A (13) is fixedly arranged on the upper end surface of the locking nut (9), an annular groove (14) is arranged on the lower surface of the boss, a friction plate B (15) is fixedly arranged in the annular groove (14), and after the locking nut (9) rotates and rises to enter the annular groove (14), the friction plate A (13) and the friction plate B (15) are compressed to form friction locking.
5. The anti-loss and anti-misoperation stop valve according to claim 1, wherein the locking mechanism comprises locking pliers fixedly arranged on a packing gland (11), the locking pliers comprise a pair of cross-hinged pliers arms (16), the hinged parts of the two pliers arms (16) are fixedly connected with the packing gland (11), one ends of the two pliers arms (16) close to the valve rod (1) are respectively provided with an arc-shaped opening, the two arc-shaped openings form a jaw (17) for clamping the valve rod (1), a pressure spring (18) is fixedly connected between the ends of the two pliers arms (16) far away from the valve rod (1), one of the two pliers arms (16) is provided with a locking hook (19), the other end of the two pliers arms is provided with a locking buckle (20) matched with the locking hook (19), and the locking hook (19) and the locking buckle (20) are respectively arranged at one end of the pliers arms (16) far away from.
6. The anti-loss and anti-misoperation stop valve according to claim 5, wherein a non-slip pad (21) is fixedly arranged at the jaw (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920293004.1U CN210034460U (en) | 2019-03-08 | 2019-03-08 | Anti-lost and misoperation stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920293004.1U CN210034460U (en) | 2019-03-08 | 2019-03-08 | Anti-lost and misoperation stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210034460U true CN210034460U (en) | 2020-02-07 |
Family
ID=69354359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920293004.1U Expired - Fee Related CN210034460U (en) | 2019-03-08 | 2019-03-08 | Anti-lost and misoperation stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210034460U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113028129A (en) * | 2021-03-26 | 2021-06-25 | 沪航科技集团有限公司 | Buffer type gate valve with anti-theft mechanism |
| CN113154070A (en) * | 2021-06-04 | 2021-07-23 | 泉高阀门科技有限公司 | Encryption gate valve convenient to maintain |
-
2019
- 2019-03-08 CN CN201920293004.1U patent/CN210034460U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113028129A (en) * | 2021-03-26 | 2021-06-25 | 沪航科技集团有限公司 | Buffer type gate valve with anti-theft mechanism |
| CN113154070A (en) * | 2021-06-04 | 2021-07-23 | 泉高阀门科技有限公司 | Encryption gate valve convenient to maintain |
| CN113154070B (en) * | 2021-06-04 | 2023-08-22 | 泉高阀门科技有限公司 | Encryption gate valve convenient to maintain |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200207 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |