Manual stop valve

Abstract

The utility model belongs to the technical field of valves, and particularly relates to a manual stop valve which comprises a valve body. The top of the valve body is fixedly connected with a pressing bin. A valve body is plugged through assemblies such as a pressing bin, during use, a worker needs to press a pressing column, during pressing, the pressing column drives a clamping column to descend, when the clamping column descends, a pressing plate at the bottom can be pushed to descend, and therefore a sealing column at the bottom of the pressing plate is driven to move towards a connecting opening; the sealing gasket at the bottom of the sealing column can block the connecting opening, then the cut-off effect is achieved, in the descending process of the clamping column, the side wall of the clamping column can abut against a clamping block in the clamping assembly, and when the sealing gasket reaches the connecting opening, a clamping groove in the side wall of the clamping column is parallel to the clamping block; and then the clamping block is bounced into the clamping groove through the clamping assembly to achieve the clamping effect, and through limiting of the clamping block, the sealing gasket can be prevented from being burst away by fluid during plugging.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves, and specifically relates to a manual globe valve. Background Art

[0002] The globe valve, also called a stop valve, is one of the most widely used valves. It is popular because there is little friction between the sealing surfaces during the opening and closing process, it is relatively durable, the opening height is not large, it is easy to manufacture, and it is easy to maintain. It is applicable not only to medium and low pressures but also to high pressures.

[0003] A manual globe valve disclosed in Patent No. CN202768872U includes a valve body, a valve stem, a valve cover and a handwheel. The valve cover is arranged above the valve body. It is characterized in that: a sealing component is further arranged inside the valve body. The valve cover is a cylindrical hollow structure. The valve stem passes through the valve cover. The upper end of the valve stem is connected to the handwheel, and the lower end of the valve stem is connected to the sealing component. The beneficial effects of the utility model are: 1. Overcoming the disadvantage of poor sealing of the manual valve in the prior art; 2. By changing the shape of the valve sealing piece, the dust on it is easy to fall off, the valve sealing piece is not easily damaged, and the service life of the manual valve is increased.

[0004] In the current prior art, the opening and closing of the valve are generally achieved by rotating the handwheel to drive the sealing gasket to descend through the thread to block the connection port. However, when rotating, if the rotation angle is offset, it will cause the thread to slip or jam, which will affect the blocking effect of the lower sealing gasket. Moreover, the thread is an internal structure of the valve body. Once a problem occurs, the entire valve body needs to be replaced during maintenance, resulting in an increase in maintenance costs.

[0005] Therefore, a manual globe valve is proposed to solve the above problems. Content of the Utility Model

[0006] In order to make up for the deficiencies of the prior art and solve the above problems, a manual globe valve is proposed.

[0007] The technical solution adopted by the present utility model to solve its technical problems is as follows: A manual stop valve described in the present utility model includes a valve body; a pressing chamber is fixedly connected to the top of the valve body; a pressing plate is slidably connected in the pressing chamber; a clamping column is fixedly connected to one end of the pressing plate away from the valve body; a sealing column is fixedly connected to one end of the pressing plate away from the clamping column; the sealing column penetrates through the valve body; a valve core is fixedly connected to the inner side wall of the valve body; a connection port is opened in the middle of the valve core; a sealing pad is fixedly connected to one end of the sealing column close to the connection port; a pressing column is fixedly connected to one end of the clamping column away from the pressing plate; a cover plate is clamped on the top of the pressing chamber; the pressing column penetrates through the cover plate; a clamping groove is opened on the side wall of the clamping column; a clamping component is arranged on the outer side wall of the pressing chamber; the clamping component includes a clamping box; a clamping block is slidably connected in the clamping box; the size of the clamping block is adapted to the inner diameter of the clamping groove.

[0008] Preferably, the bottom of the clamping box is fixedly connected to the side wall of the pressing chamber; a top plate is fixedly connected to one end of the clamping box away from the pressing chamber; a return spring is fixedly connected to the side wall of the top plate; the end of the return spring is fixedly connected to a sliding plate; the sliding plate is slidably connected to the inner wall of the clamping box; a clamping spring is fixedly connected to one end of the sliding plate away from the return spring; the clamping block is fixedly connected to the end of the clamping spring; the clamping block penetrates through the pressing chamber; a sliding column is fixedly connected to the side wall of the sliding plate; the sliding column penetrates through the top plate.

[0009] Preferably, a telescopic spring is arranged between the pressing plate and the valve body in the pressing chamber; both ends of the telescopic spring are fixedly connected to the pressing plate and the valve body respectively; the telescopic spring is arranged outside the sealing column.

[0010] Preferably, a sealing ring is fixedly connected to the top of the valve body at the connection part of the sealing column; the sealing ring is made of rubber material.

[0011] Preferably, a sealing ring is fixedly connected to the inner wall of the connection port; the surface of the sealing ring abuts against the bottom of the sealing pad.

[0012] Preferably, two groups of clamping components are arranged; two groups of clamping grooves are arranged, which are respectively opened on both sides of the clamping column.

[0013] The beneficial effects of the present utility model:

[0014] 1. The present utility model provides a manual stop valve, which realizes the sealing of the valve body through components such as a pressing chamber. During use, the staff needs to press the pressing column. When pressing, the pressing column drives the clamping column to descend. When the clamping column descends, it will push the pressing plate at the bottom to descend, thereby driving the sealing column at the bottom of the pressing plate to move towards the connection port. During the movement, the sealing gasket at the bottom of the sealing column will seal the connection port, thereby achieving the stop effect. And during the descent of the clamping column, its side wall will abut against the clamping block in the clamping assembly. When the sealing gasket reaches the connection port, the clamping groove on the side wall of the clamping column is in a parallel position with the clamping block, and then the clamping block springs into the clamping groove through the clamping assembly to achieve the clamping effect. Through the limitation of the clamping block, it can be avoided that the sealing gasket is washed open by the fluid during sealing.

[0015] 2. The present utility model provides a manual stop valve, which realizes the fixation of the sealing gasket through a clamping assembly. When pressing the pressing column, the pressing column drives the clamping column to descend. During the descent, the side wall of the clamping column contacts the end of the clamping block and squeezes the clamping block into the clamping box. During the squeezing process, the clamping spring is also squeezed. After descending to the end and the sealing gasket seals the connection port, the clamping block is in a parallel position with the clamping groove, and the clamping spring rebounds, springing the clamping block into the clamping groove, which achieves the effect of fixing the sealing gasket. When it is necessary to open the connection port, the staff can pull the sliding column to drive the sliding plate to move towards the top plate. During the movement, the clamping spring and the clamping block are driven to retract into the clamping box. And when pulling the sliding column, the return spring will be squeezed. When the clamping block is disengaged from the clamping groove, the driving clamping column drives the sealing gasket to rise. After rising, release the sliding column. At this time, the return spring rebounds, popping the clamping block out of the clamping box again, waiting for the next sealing and clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present utility model and constitute a part of this application. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0017] Figure 1 is a perspective view of the valve body in the present utility model;

[0018] Figure 2 is a sectional view of the valve body in the present utility model;

[0019] Figure 3 is Figure 2 an enlarged view of part A in

[0020] Figure 4 is Figure 2 an enlarged view of part B in

[0021] Figure 5 is a front view of the valve body in the present utility model;

[0022] Legend Explanation:

[0023] 1. Valve body; 2. Pressing chamber; 3. Sealing column; 4. Sealing ring; 5. Telescopic spring; 6. Clamping column; 7. Pressing plate; 8. Pressing column; 9. Cover plate; 10. Clamping assembly; 11. Clamping groove; 12. Clamping block; 13. Clamping box; 14. Top plate; 15. Slide column; 16. Return spring; 17. Slide plate; 18. Clamping spring; 19. Valve core; 20. Connection port; 21. Sealing ring; 22. Sealing gasket. Specific Embodiment

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] The following gives specific embodiments.

[0026] Please refer to Figure 1 - Figure 5, the present utility model provides a manual stop valve, including a valve body 1; a pressing chamber 2 is fixedly connected to the top of the valve body 1; a pressing plate 7 is slidably connected in the pressing chamber 2; a clamping column 6 is fixedly connected to one end of the pressing plate 7 away from the valve body 1; a sealing column 3 is fixedly connected to one end of the pressing plate 7 away from the clamping column 6; the sealing column 3 penetrates through the valve body 1; a valve core 19 is fixedly connected to the inner side wall of the valve body 1; a connection port 20 is opened in the middle of the valve core 19; a sealing pad 22 is fixedly connected to one end of the sealing column 3 close to the connection port 20; a pressing column 8 is fixedly connected to one end of the clamping column 6 away from the pressing plate 7; a cover plate 9 is clamped on the top of the pressing chamber 2; the pressing column 8 penetrates through the cover plate 9; a clamping groove 11 is opened on the side wall of the clamping column 6; a clamping component 10 is arranged on the outer side wall of the pressing chamber 2; the clamping component 10 includes a clamping box 13; a clamping block 12 is slidably connected in the clamping box 13; the size of the clamping block 12 is adapted to the inner diameter of the clamping groove 11; during operation, in the current prior art, the opening and closing of the valve are generally achieved by rotating a handwheel to drive the sealing pad 22 to descend through a thread to block the connection port 20. However, during rotation, if the rotation angle is offset, it will cause the thread to slip or jam, thereby affecting the blocking effect of the sealing pad 22 below. Moreover, the thread is an internal structure of the valve body. Once a problem occurs, the entire valve body needs to be replaced during maintenance, resulting in an increase in maintenance costs. To prevent such events from occurring, a pressing chamber 2 is fixedly connected to the top of the valve body 1. When in use, the staff needs to press the pressing column 8. During pressing, the pressing column 8 drives the clamping column 6 to descend. When the clamping column 6 descends, it will push the pressing plate 7 at the bottom to descend, thereby driving the sealing column 3 at the bottom of the pressing plate 7 to move towards the connection port 20. During the movement, the sealing pad 22 at the bottom of the sealing column 3 will block the connection port 20, thereby achieving the cut-off effect. Moreover, during the descent of the clamping column 6, its side wall will abut against the clamping block 12 in the clamping component 10. When abutting, the clamping column 6 is continuously pressed and descended by the pressing column 8. When the sealing pad 22 reaches the connection port 20, the clamping groove 11 on the side wall of the clamping column 6 is parallel to the clamping block 12. Then, the clamping block 12 springs into the clamping groove 11 through the clamping component 10 to achieve a clamping effect. Through the limitation of the clamping block 12, it is possible to prevent the sealing pad 22 from being washed away by the fluid during blocking. Moreover, the pressing method can be distinguished from the traditional thread drive, avoiding the phenomenon of thread slipping or jamming. During maintenance, only the pressing chamber 2 needs to be repaired or replaced, and there is no need to replace the valve body 1.

[0027] Further, as Figure 1 and Figure 2As shown in the figure, the bottom of the clamping box 13 is fixedly connected to the side wall of the pressing chamber 2; one end of the clamping box 13 away from the pressing chamber 2 is fixedly connected to a top plate 14; a return spring 16 is fixedly connected to the side wall of the top plate 14; the end of the return spring 16 is fixedly connected to a sliding plate 17; the sliding plate 17 is slidably connected to the inner wall of the clamping box 13; one end of the sliding plate 17 away from the return spring 16 is fixedly connected to a clamping spring 18; the clamping block 12 is fixedly connected to the end of the clamping spring 18; the clamping block 12 penetrates through the pressing chamber 2; a sliding column 15 is fixedly connected to the side wall of the sliding plate 17; the sliding column 15 penetrates through the top plate 14. During operation, when the pressing column 8 is pressed, the pressing column 8 drives the clamping column 6 to descend. During the descending process, the side wall of the clamping column 6 contacts the end of the clamping block 12 and squeezes the clamping block 12 into the clamping box 13. During the squeezing process, the clamping spring 18 is simultaneously squeezed. After the sealing gasket 22 seals the connection port 20 at the end of the descent, the clamping block 12 and the clamping groove 11 are in a parallel position, and the clamping spring 18 rebounds, springing the clamping block 12 into the clamping groove 11, which achieves the effect of fixing the sealing gasket 22. When it is necessary to open the connection port 20, the staff can pull the sliding column 15 to drive the sliding plate 17 to move towards the top plate 14. During the movement process, the clamping spring 18 and the clamping block 12 are driven to retract into the clamping box 13. When the sliding column 15 is pulled, the return spring 16 will be squeezed. After the clamping block 12 is disengaged from the clamping groove 11, the driving clamping column 6 drives the sealing gasket 22 to rise. After rising, the sliding column 15 is released. At this time, the return spring 16 rebounds, popping the clamping block 12 out of the clamping box 13 again, waiting for the next sealing and clamping.

[0028] Further, as Figure 2 shown, a telescopic spring 5 is arranged between the pressing plate 7 and the valve body 1 in the pressing chamber 2; both ends of the telescopic spring 5 are fixedly connected to the pressing plate 7 and the valve body 1 respectively; the telescopic spring 5 is arranged outside the sealing column 3. During operation, during the descending process of the pressing plate 7, the telescopic spring 5 will be squeezed. When the clamping column 6 is disengaged from the clamping block 12, the telescopic spring 5 rebounds, driving the pressing plate 7 and the clamping column 6 to rise, so that the clamping groove 11 is away from the clamping block 12.

[0029] Further, as Figure 2 shown, a sealing ring 4 is fixedly connected to the top of the valve body 1 at the connection of the sealing column 3; the sealing ring 4 is made of rubber. During operation, the sealing ring 4 is fixedly connected at the through connection of the sealing column 3 and the valve body 1, which can prevent the fluid from flowing out of the valve body 1 at the connection.

[0030] Further, as Figure 2As shown, a sealing ring 21 is fixedly connected to the inner wall of the connection port 20; the surface of the sealing ring 21 abuts against the bottom of the gasket 22. During operation, the sealing ring 21 is fixedly connected to the inner wall of the connection port 20 and can abut against the gasket 22. Both are made of rubber material and can be squeezed when they abut, so as to achieve a good sealing effect.

[0031] Furthermore, as Figure 1 shown, two sets of clamping components 10 are provided; two sets of clamping grooves 11 are provided, which are respectively opened on both sides of the clamping post 6. During operation, the clamping blocks 12 in the two sets of clamping boxes 13 simultaneously clamp the clamping post 6, which can prevent the fluid from flushing open the gasket 22.

[0032] Working principle: In the current prior art, the opening and closing of the valve are generally achieved by rotating the handwheel to drive the gasket 22 to descend through the thread to block the connection port 20. However, during rotation, if the rotation angle is offset, it will cause the thread to slip or jam, which will affect the blocking effect of the gasket 22 below. Moreover, the thread is an internal structure of the valve body. Once a problem occurs, the entire valve body needs to be replaced during maintenance, resulting in an increase in maintenance costs. To prevent such incidents, a pressing chamber 2 is fixedly connected to the top of the valve body 1. During use, the operator needs to press the pressing post 8. When pressing, the pressing post 8 drives the clamping post 6 to descend. When the clamping post 6 descends, it will push the pressing plate 7 at the bottom to descend, thereby driving the sealing post 3 at the bottom of the pressing plate 7 to move towards the connection port 20. During the movement, the gasket 22 at the bottom of the sealing post 3 will block the connection port 20, thereby achieving the cut-off effect. Moreover, during the descent of the clamping post 6, its side wall will abut against the clamping block 12 in the clamping component 10. When abutting, the clamping post 6 is continuously pressed down by the pressing post 8. When the gasket 22 reaches the connection port 20, the clamping groove 11 on the side wall of the clamping post 6 is parallel to the clamping block 12, and then the clamping block 12 springs into the clamping groove 11 through the clamping component 10 to achieve the clamping effect. Through the limitation of the clamping block 12, it can prevent the gasket 22 from being flushed open by the fluid during blocking. Moreover, the pressing method can be distinguished from the traditional thread drive to avoid the phenomenon of thread slipping or jamming. During maintenance, only the pressing chamber 2 needs to be repaired or replaced, and there is no need to replace the valve body 1.

[0033] Among them, the fixing of the gasket 22 is achieved through the clamping component 10. When pressing the pressing column 8, the pressing column 8 drives the clamping column 6 to descend. During the descending process, the side wall of the clamping column 6 contacts the end of the clamping block 12 and squeezes the clamping block 12 into the clamping box 13. During the squeezing process, the clamping spring 18 is simultaneously squeezed. After descending to the end and the gasket 22 seals the connection port 20, the clamping block 12 and the clamping groove 11 are in a parallel position, and the clamping spring 18 rebounds, springing the clamping block 12 into the clamping groove 11, thus achieving the effect of fixing the gasket 22. When it is necessary to open the connection port 20, the staff can pull the sliding column 15 to drive the sliding plate 17 to move towards the top plate 14. During the moving process, the clamping spring 18 and the clamping block 12 are driven to retract into the clamping box 13. Moreover, when pulling the sliding column 15, the return spring 16 will be squeezed. When the clamping block 12 is disengaged from the clamping groove 11, the driving clamping column 6 drives the gasket 22 to rise. After rising, the sliding column 15 is released. At this time, the return spring 16 rebounds, popping the clamping block 12 out of the clamping box 13 again, waiting for the next sealing and clamping.

[0034] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. A manual stop valve, characterized in that: The valve body (1) comprises a valve body (1); a pressing chamber (2) is fixedly connected to the top of the valve body (1); a pressing plate (7) is slidably connected to the inside of the pressing chamber (2); an end of the pressing plate (7) away from the valve body (1) is fixedly connected to a clamping column (6); an end of the pressing plate (7) away from the clamping column (6) is fixedly connected to a sealing column (3); the sealing column (3) is arranged to penetrate the valve body (1); a valve core (19) is fixedly connected to the inner side wall of the valve body (1); a connecting port (20) is provided in the middle of the valve core (19); the sealing column (3) is close to the connecting port (20). One end of the clamping column (6) is fixedly connected to a sealing gasket (22); one end of the clamping column (6) away from the pressing plate (7) is fixedly connected to a pressing column (8); a cover plate (9) is clamped on the top of the pressing chamber (2); the pressing column (8) is arranged to penetrate the cover plate (9); a clamping groove (11) is provided on the side wall of the clamping column (6); a clamping assembly (10) is provided on the outer side wall of the pressing chamber (2); the clamping assembly (10) includes a clamping box (13); a clamping block (12) is slidably connected inside the clamping box (13); the size of the clamping block (12) is adapted to the inner diameter of the clamping groove (11).

2. A manual stop valve according to claim 1, characterized in that: The bottom of the snap-in box (13) is fixedly connected to the side wall of the pressing chamber (2); the end of the snap-in box (13) away from the pressing chamber (2) is fixedly connected to the top plate (14); the side wall of the top plate (14) is fixedly connected to a return spring (16); the end of the return spring (16) is fixedly connected to a slide plate (17); the slide plate (17) is slidably connected to the inner wall of the snap-in box (13); the end of the slide plate (17) away from the return spring (16) is fixedly connected to a snap-in spring (18); the snap-in block (12) is fixedly connected to the end of the snap-in spring (18); the snap-in block (12) is arranged to pass through the pressing chamber (2); the side wall of the slide plate (17) is fixedly connected to a slide column (15); the slide column (15) is arranged to pass through the top plate (14).

3. A manual stop valve according to claim 2, characterized in that: A telescopic spring (5) is arranged between the pressing plate (7) and the valve body (1) in the pressing chamber (2); two ends of the telescopic spring (5) are respectively fixedly connected to the pressing plate (7) and the valve body (1); and the telescopic spring (5) is arranged outside the sealing column (3).

4. A manual stop valve according to claim 3, characterized in that: A sealing ring (4) is fixedly connected to the top of the valve body (1) at the connection point with the sealing column (3); the sealing ring (4) is made of rubber.

5. A manual stop valve according to claim 4, characterized in that: A sealing ring (21) is fixedly connected to the inner wall of the connection port (20); the surface of the sealing ring (21) abuts against the bottom of the sealing pad (22).

6. A manual stop valve according to claim 5, characterized in that: The clamping components (10) are provided in two groups; the clamping slots (11) are provided in two groups, which are respectively opened on both sides of the clamping column (6).

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