CN210566477U

CN210566477U - Cut-off valve

Info

Publication number: CN210566477U
Application number: CN201921274049.0U
Authority: CN
Inventors: 王丽莉; 王朝红
Original assignee: Shaoxing Tiger Mechatronics Technology Co ltd
Current assignee: Shaoxing Tiger Mechatronics Technology Co ltd
Priority date: 2019-08-08
Filing date: 2019-08-08
Publication date: 2020-05-19
Anticipated expiration: 2029-08-08

Abstract

The utility model discloses a stop valve, which comprises a valve body, a clamping groove, a sealing cover and a sealing gasket, wherein a first spring is arranged at the bottom in the mounting groove, the outer end of the first spring is connected with a throttle plate, the throttle plate is arranged on a screw, the screw penetrates through the first spring and the mounting groove to be connected with a nut, a first sealing ring and a filter screen are arranged in the clamping groove, the right end of a second spring is connected with a first plug, the right side surface of the first plug is provided with a second sealing ring, the inner end surface of the sealing cover is provided with a third spring, the inner end surface of the sealing gasket is connected with a guide rod, the left side surface of the second plug is provided with a third sealing ring, when fluid leaks, the first plug blocks an inlet, the third spring is connected on a fixed rod through the sealing cover by extruding, the sealing cover pushes a guide rod to move leftwards, the guide rod pushes the second plug to move left, avoiding fluid leakage.

Description

Cut-off valve

Technical Field

The utility model relates to a trip valve especially relates to a trip valve.

Background

The valve is a control component in a fluid delivery system, and has functions of stopping, adjusting, guiding, preventing backflow, stabilizing pressure, shunting, overflowing, relieving pressure and the like, and the existing valves are usually arranged independently, namely one valve and one valve body, however, some dangerous fluids such as: the dangerous angle of fluid such as coal gas, natural gas, toxic gas and harmful liquid if only set up a valve, if the valve damages, causes the fluid to leak, and the security is relatively poor, consequently needs to set up a trip valve and controls the fluid, causes the pipeline pressure increase when the fluid leaks, can cut off the fluid pipeline through the trip valve, prevents that the accident from taking place.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, one of the purposes of the utility model is to provide a stop valve, the inside filter screen that is provided with of stop valve can reduce the impurity in the fluid and cause the inside jam of valve body, and first end cap and second end cap can be plugged up the entrance, avoid fluid leakage.

The utility model discloses an one of the purpose adopts following technical scheme to realize:

a cut-off valve comprises a valve body, a clamping groove, a sealing cover and a sealing gasket, wherein a fluid port and a mounting groove are formed in the left side face of the valve body, the mounting groove is formed between the fluid ports, a first spring is arranged at the bottom in the mounting groove, the outer end of the first spring is connected with a throttle plate, the throttle plate is arranged on a screw, the screw penetrates through the first spring and the mounting groove to be connected with a nut, the nut is arranged on the right side of the mounting groove, the clamping groove is formed in the inner side wall of the valve body and is arranged on the right side of the nut, a first sealing ring and a filter screen are arranged in the clamping groove, the first sealing ring is arranged on the outer side of the filter screen, a turnover cover is arranged on the upper surface of the valve body, a sliding rod is arranged inside the valve body, the sliding rod is arranged on the right side of the clamping groove, the right side face of the first plug is provided with a second sealing ring, the right side of the first plug is provided with an inlet, the inner end face of the sealing cover is provided with a third spring, the inner end face of the third spring is connected with the fixed rod, the fixed rod is arranged at the right end of the valve body, the inner end face of the sealing gasket is connected with the guide rod, the guide rod is arranged between the third springs, the left end of the guide rod penetrates through the fixed rod, the right side wall of the valve body and the sealing gasket and is connected with the second plug, the sealing gasket is arranged on the inner right side wall of the valve body, the left side face of the second plug is provided with the third sealing ring, and the second plug is arranged on the right side of the inlet.

Furthermore, the screw and the nut are in threaded connection, and a telescopic mechanism is formed between a first spring arranged on the outer side of the screw and the throttle plate.

Further, the external diameter of first sealing washer is greater than the diameter of filter screen, and all constitutes slide mechanism between filter screen and first sealing washer and the draw-in groove.

Furthermore, a telescopic mechanism is formed between the second spring and the first plug.

Furthermore, the sealing cover and the third spring form a telescopic mechanism, and the sealing cover is in threaded connection with the fixed rod.

Furthermore, the guide rod is connected with the fixed rod and the valve body in a sliding mode.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. the valve body is internally provided with the filter screen, the filter screen can reduce the blockage of impurities in the fluid to the inside of the valve body, the filter screen can be taken down and cleaned by taking down the flip cover, and meanwhile, the first sealing ring is arranged on the outer side of the filter screen, so that the good sealing performance of the installation position of the filter screen is ensured;

2. when fluid leaks, the pressure of the fluid opening is increased, the first plug is pushed to move rightwards under the action of the fluid pressure, and the first plug blocks the inlet, so that the fluid is prevented from leaking, and safety accidents are reduced;

3. after the access hole is plugged by the first plug, the third spring is extruded by the sealing cover to be in threaded connection with the fixed rod, the sealing cover pushes the guide rod to move leftwards, the guide rod pushes the second plug to move leftwards, the left side of the access hole is plugged, and the third sealing ring ensures the sealing performance of the joint of the third plug and avoids fluid leakage.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic front sectional view illustrating the present embodiment;

FIG. 2 is a left side view of the present embodiment;

FIG. 3 is a schematic left side sectional view of the present embodiment;

fig. 4 is a right side sectional view of the present embodiment.

In the figure: 1. a valve body; 2. a fluid port; 3. mounting grooves; 4. a first spring; 5. a screw; 6. a throttle plate; 7. a nut; 8. a card slot; 9. a first seal ring; 10. filtering with a screen; 11. a cover is turned; 12. a slide bar; 13. a second spring; 14. a first plug; 15. a second seal ring; 16. an inlet; 17. a sealing cover; 18. a third spring; 19. fixing the rod; 20. a guide bar; 21. a gasket; 22. a second plug; 23. and a third sealing ring.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 4, as shown in fig. 1 and 2, a fluid port 2 and an installation groove 3 are formed in a left side surface of a valve body 1, the installation groove 3 is disposed between the fluid ports 2, a first spring 4 is disposed at a bottom portion in the installation groove 3, an outer end of the first spring 4 is connected to a throttle plate 6, the throttle plate 6 is disposed on a screw 5, the screw 5 penetrates through the first spring 4 and the installation groove 3 and is connected to a nut 7, the nut 7 is disposed at a right side of the installation groove 3, the screw 5 is in threaded connection with the nut 7, a telescopic mechanism is formed between the first spring 4 disposed at an outer side of the screw 5 and the throttle plate 6, and the throttle plate 6 is moved leftward or rightward by screwing the screw 5.

As shown in fig. 1, fig. 3 and fig. 4, the draw-in groove 8 sets up on the inside wall of valve body 1, and draw-in groove 8 sets up the right side at nut 7, be provided with first sealing washer 9 and filter screen 10 in the draw-in groove 8, and first sealing washer 9 sets up the outside at filter screen 10, the external diameter of first sealing washer 9 is greater than the diameter of filter screen 10, and all constitute slide mechanism between filter screen 10 and first sealing washer 9 and the draw-in groove 8, filter screen 10 can filter the impurity in the fluid, reduce impurity and cause the inside jam of valve body 1, the last surface mounting of valve body 1 has flip 11, and the inside of valve body 1 is provided with slide bar 12, wherein flip 11 passes through the screw and fixes with valve body.

As shown in fig. 1, a sliding rod 12 is arranged at the right side of a clamping groove 8, a second spring 13 is fixed on the sliding rod 12, a telescopic mechanism is formed between the second spring 13 and a first plug 14, when fluid leaks, the first plug 14 is pushed under the pressure of the fluid to block an inlet 16, so as to avoid the fluid leakage, the right end of the second spring 13 is connected with the first plug 14, a second sealing ring 15 is arranged on the right side surface of the first plug 14, the right side of the first plug 14 is provided with the inlet 16, the inner end surface of a sealing cover 17 is provided with a third spring 18, the inner end surface of the third spring 18 is connected with a fixed rod 19, the fixed rod 19 is arranged at the right end of the valve body 1, the sealing cover 17 and the third spring 18 form the telescopic mechanism, the sealing cover 17 is in threaded connection with the fixed rod 19, the sealing cover 17 moves leftwards to press the third spring 18 to be in threaded connection, the inner end face of the sealing gasket 21 is connected with the guide rod 20, the guide rod 20 is arranged between the third springs 18, the guide rod 20 is in sliding connection with the fixed rod 19 and the valve body 1, the guide rod 20 pushes the second plug 22 leftwards under the pushing of the sealing cover 17 to block the inlet 16, the left end of the guide rod 20 penetrates through the fixed rod 19, the right side wall of the valve body 1 and the sealing gasket 21 are connected with the second plug 22, the sealing gasket 21 is arranged on the inner right side wall of the valve body 1, the left side face of the second plug 22 is provided with a third sealing ring 23, and the second plug 22 is arranged on the right side of the inlet 16.

The operation of the embodiment is simple, when fluid flows in the valve body 1, the filter screen 10 can filter impurities in the fluid, so that the internal blockage of the valve body 1 caused by the impurities in the fluid is reduced, the sealing performance of the installation position of the filter screen 10 is ensured by the first sealing ring 9, when the fluid leaks, the pressure at the fluid port 2 is enhanced, the pressure pushes the first plug 14 to move rightwards, the first plug 14 blocks the left side of the inlet 16 to avoid the fluid leakage, the sealing performance of the connection position of the first plug 14 and the inlet 16 is ensured by the second sealing ring 15, an operator manually rotates the sealing cover 17 to press the third spring 18 leftwards to push the guide rod 20 to move leftwards, the guide rod 20 pushes the second plug 22 to block the right side of the inlet 16, the sealing performance of the third sealing ring 23 is ensured, the sealing cover 17 is in threaded connection with the fixing rod 19, then the screw 5 is screwed, the screw 5 pushes the throttle plate 6 rightwards, the flow rate of the fluid at the fluid opening 2 is controlled, the extrusion of the pressure inside the valve body 1 on the first plug 14 is reduced, the damage of the first plug 14 is reduced, after the pressure is reduced, the second spring 13 pulls the first plug 14 to move leftwards, the fluid is prevented from leaking under the action of the second plug 22, the abrasion of the fluid on the second plug 22 is reduced due to the pressure reduction, the valve body 1 is closed periodically, the flip cover 11 is opened, and the first sealing ring 9 and the filter screen 10 are taken out for cleaning and maintenance.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. The utility model provides a trip valve, includes valve body (1), draw-in groove (8), sealed lid (17) and sealed pad (21), its characterized in that: the left side surface of the valve body (1) is provided with fluid ports (2) and mounting grooves (3), the mounting grooves (3) are arranged between the fluid ports (2), the bottom in the mounting groove (3) is provided with a first spring (4), the outer end of the first spring (4) is connected with a throttle plate (6), the throttle plate (6) is arranged on a screw (5), the screw (5) penetrates through the first spring (4) and the mounting groove (3) to be connected with a nut (7), meanwhile, the nut (7) is arranged on the right side of the mounting groove (3), the clamping groove (8) is arranged on the inner side wall of the valve body (1), the clamping groove (8) is arranged on the right side of the nut (7), a first sealing ring (9) and a filter screen (10) are arranged in the clamping groove (8), the first sealing ring (9) is arranged on the outer side of the filter screen (10), and the upper surface of the valve body (1) is provided with a turnover cover (11), a sliding rod (12) is arranged inside the valve body (1), the sliding rod (12) is arranged on the right side of the clamping groove (8), a second spring (13) is fixed on the sliding rod (12), the right end of the second spring (13) is connected with a first plug (14), a second sealing ring (15) is arranged on the right side face of the first plug (14), an access opening (16) is formed in the right side of the first plug (14), a third spring (18) is arranged on the inner end face of the sealing cover (17), the inner end face of the third spring (18) is connected with a fixing rod (19), the fixing rod (19) is arranged at the right end of the valve body (1), the inner end face of the sealing gasket (21) is connected with a guide rod (20), the guide rod (20) is arranged between the third springs (18), and the left end of the guide rod (20) penetrates through the fixing rod (19), the right side wall of the valve body (1) and the sealing gasket (21) to be connected with a second plug (22), and the sealing gasket (21) is arranged on the inner right side wall of the valve body (1), the left side surface of the second plug (22) is provided with a third sealing ring (23), and the second plug (22) is arranged on the right side of the inlet (16).

2. The shut-off valve of claim 1, wherein: the bolt (5) is in threaded connection with the nut (7), and a telescopic mechanism is formed between the first spring (4) arranged on the outer side of the bolt (5) and the throttle plate (6).

3. The shut-off valve of claim 1, wherein: the external diameter of first sealing washer (9) is greater than the diameter of filter screen (10), and all constitutes slide mechanism between filter screen (10) and first sealing washer (9) and draw-in groove (8).

4. The shut-off valve of claim 1, wherein: and a telescopic mechanism is formed between the second spring (13) and the first plug (14).

5. The shut-off valve of claim 1, wherein: the sealing cover (17) and the third spring (18) form a telescopic mechanism, and the sealing cover (17) is in threaded connection with the fixing rod (19).

6. The shut-off valve of claim 1, wherein: the guide rod (20) is connected with the fixed rod (19) and the valve body (1) in a sliding mode.