CN219605694U - Pneumatically driven hydraulic pipeline stop valve - Google Patents

Abstract

The utility model relates to a pneumatic-driven hydraulic pipeline stop valve, which comprises a pneumatic cylinder, wherein the bottom of the pneumatic cylinder is connected with an auxiliary connecting component, the bottom of the auxiliary connecting component is connected with a valve body, the output end of the pneumatic cylinder extends into the valve body and is fixedly connected with a valve core, a plugging seat matched with the valve core is fixedly connected in an inner cavity of the valve body, two opposite sides of the valve body are respectively communicated with an output pipe and an input pipe, one end of the input pipe, which is opposite to the valve body, is communicated with a filtering component, and the opposite ends of the filtering component and the output pipe are fixedly connected with flanges. According to the utility model, through the communication between the input pipe and the filtering component, the impurity particles carried by the water flowing in the device can be reduced, so that the influence of the impurity particles on the blocking of the valve core and the blocking seat is reduced, and the blocking tightness between the valve core and the blocking seat is improved when the device is shut down.

Description

Pneumatically driven hydraulic pipeline stop valve

Technical Field

The utility model relates to the technical field of stop valves, in particular to a pneumatic-driven hydraulic pipeline stop valve.

Background

The stop valve is a tool which makes the sealing surface of the valve clack closely adhere to the sealing surface of the valve seat by means of the pressure of the valve lever to prevent medium from flowing.

When the pneumatic-driven hydraulic pipeline stop valve is used, the valve rod can be driven to move by utilizing the input of compressed gas in the pneumatic cylinder, the valve clack is used for plugging the valve seat, the contact surface between the valve clack and the valve seat needs to be attached to avoid the influence of gaps on the stop of a medium, but the tightness of the plugging between the valve clack and the valve seat is easy to be influenced because impurity particles are easy to be attached to the valve clack and the valve seat in the long-time use process of conveying a water body, in addition, the valve rod is easy to generate friction and rust after being used for a period of time, and the smoothness of the driven movement of the valve rod is further influenced.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a pneumatic-driven hydraulic pipeline stop valve.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a pneumatic drive's hydraulic pressure pipeline stop valve, includes the pneumatic cylinder, the bottom connection of pneumatic cylinder is provided with auxiliary connection subassembly, auxiliary connection subassembly's bottom connection is provided with the valve body, the output of pneumatic cylinder stretches into in the valve body and fixedly connected with case, fixedly connected with and case matched with shutoff seat in the inner chamber of valve body, the both sides that the valve body is relative communicate respectively and are provided with output tube and input tube, the one end intercommunication that the input tube was carried forward to the valve body is provided with filter unit, the equal fixedly connected with flange of the opposite ends of filter unit and output tube, filter unit includes the communicating pipe that is linked together with the input tube, the one end and the flange fixed connection that the communicating pipe was carried forward to the input tube, be provided with the filter in the communicating pipe inner chamber, the multiunit filtration pore has been seted up on the filter.

Preferably, the filter assembly further comprises an auxiliary spring fixedly connected in the communicating pipe, and one end of the auxiliary spring facing the filter plate is fixedly connected with the filter plate, so that impurities can be attached to the filter plate and reduced.

In a further preferred embodiment, a threaded seat is provided at the bottom of the communicating pipe, a collecting pipe is connected to the threaded seat by internal threads, and an opening is provided at the top of the collecting pipe, so that the trapped impurities can be cleaned conveniently.

In a further preferred embodiment, the screw seat is located between the filter plate and a flange connected to the communication pipe, so that impurities can fall into the collection pipe for collection.

In a further preferred embodiment, the auxiliary connection assembly includes a communication seat fixedly connected with the pneumatic cylinder and the valve body, the communication seat is communicated with the valve body, the output end of the pneumatic cylinder passes through the inner cavity of the communication seat, the outside communication of the communication seat is provided with a lubrication mechanism, and the inside of the communication seat is provided with a reset mechanism, so that the action of the output end of the pneumatic cylinder can be assisted by the auxiliary connection assembly.

In a further preferred embodiment, the lubrication mechanism includes an injection tube communicated with the communication seat, a piston is slidably connected in the injection tube, a push rod is fixedly connected with one end of the piston, which is opposite to the communication seat, the top of the piston is communicated with an extension tube, and the top of the extension tube is communicated with an oilcan, so that the output end of the pneumatic cylinder can be lubricated.

In a further preferred embodiment, the reset mechanism includes a pressing plate fastened to the output end of the pneumatic cylinder, and a reset spring is fixedly connected to the bottom of the pressing plate, and the reset spring is sleeved on the outer side of the output end of the pneumatic cylinder and is fixedly connected to the bottom of the pneumatic cylinder and the inner bottom of the communication seat, so that the opening of the stop valve can be assisted.

(III) beneficial effects

Compared with the prior art, the utility model provides the pneumatic-driven hydraulic pipeline stop valve, which has the following beneficial effects:

1. according to the utility model, through the communication between the input pipe and the filtering component, the impurity particles carried by the water flowing in the device can be reduced, so that the influence of the impurity particles on the blocking of the valve core and the blocking seat is reduced, and the blocking tightness between the valve core and the blocking seat is improved when the device is shut down.

2. According to the utility model, by arranging the lubrication mechanism in the auxiliary connection assembly, the device is convenient to lubricate the output end of the pneumatic cylinder by injecting lubricating oil into the communication seat after being used for a period of time, so that the friction resistance of the output end of the pneumatic cylinder during movement is reduced, and the smoothness of the action of the device is improved.

3. According to the utility model, through the matching arrangement of the threaded seat in the filtering assembly and the collecting pipe and the communicating pipe, when the device is stopped in use, the collecting pipe can be screwed out, the impurities trapped by stack filtering can be dumped, and a user can conveniently clean the inner wall of the communicating pipe from the threaded seat by using a tool.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the valve body of the present utility model;

FIG. 3 is a schematic cross-sectional view of a communication pipe according to the present utility model;

FIG. 4 is a schematic cross-sectional view of a communication seat according to the present utility model;

FIG. 5 is a schematic view of the cross-sectional structure of the syringe of the present utility model.

In the figure: 1. a pneumatic cylinder; 2. a valve body; 3. a valve core; 4. a plugging seat; 5. an output pipe; 6. an input tube; 7. a flange; 8. a communicating pipe; 9. an auxiliary spring; 10. a filter plate; 11. a filter hole; 12. a screw seat; 13. a collection pipe; 14. a communication seat; 15. a syringe; 16. a piston; 17. a push rod; 18. an extension tube; 19. an oilcan; 20. a pressing plate; 21. and a return spring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1:

referring to fig. 1-5, an air pressure driven hydraulic pipeline stop valve comprises an air pressure cylinder 1, an auxiliary connecting component is arranged at the bottom of the air pressure cylinder 1, a valve body 2 is arranged at the bottom of the auxiliary connecting component, an output end of the air pressure cylinder 1 stretches into the valve body 2 and is fixedly connected with a valve core 3, a plugging seat 4 matched with the valve core 3 is fixedly connected in an inner cavity of the valve body 2, an output pipe 5 and an input pipe 6 are respectively communicated with two opposite sides of the valve body 2, one end of the input pipe 6, which is opposite to the valve body 2, is communicated with a filtering component, flanges 7 are fixedly connected with opposite ends of the filtering component and the output pipe 5, the filtering component comprises a communicating pipe 8 communicated with the input pipe 6, one end of the communicating pipe 8, which is opposite to the input pipe 6, is fixedly connected with the flanges 7, a filter plate 10 is arranged in an inner cavity of the communicating pipe 8, a plurality of groups of filtering holes 11 are formed in the filter plate 10, when the air pressure driven hydraulic pipeline stop valve is used, the output pipe 5 is communicated with the output pipe by the flange 7 and a screw in advance, and the water body is communicated with the input pipeline, when the water flows through the communicating pipe 8, the filtering holes 11 on the filter plate can be used for filtering water.

In this embodiment, the auxiliary connection assembly includes a communication seat 14 fixedly connected between the pneumatic cylinder 1 and the valve body 2, the communication seat 14 is communicated with the valve body 2, the output end of the pneumatic cylinder 1 passes through the inner cavity of the communication seat 14, the outside of the communication seat 14 is communicated with a lubrication mechanism, and the inside of the communication seat 14 is provided with a reset mechanism.

In this embodiment, the lubrication mechanism includes an injection tube 15 communicating with the communication seat 14, a piston 16 is slidably connected in the injection tube 15, one end of the piston 16 facing away from the communication seat 14 is fixedly connected with a push rod 17, the top of the piston 16 is communicated with an extension tube 18, the top of the extension tube 18 is communicated with an oilcan 19, after a period of use, a user can inject lubricating oil into the oilcan 19 and make the lubricating oil pass through the extension tube 18 and use the injection tube 15, at this time, the push rod 17 is pushed to drive the piston 16 to move towards the communication seat 14, so that the piston 16 pushes the lubricating oil into the communication seat 14, which makes the output end of the pneumatic cylinder 1 contact the lubricating oil when moving to reduce friction between the output end of the pneumatic cylinder 1 and the communication seat 14.

In this embodiment, the return mechanism includes the clamp plate 20 fixed with pneumatic cylinder 1 output joint, the bottom fixedly connected with return spring 21 of clamp plate 20, return spring 21 cover is located the outside of pneumatic cylinder 1 output and bottom and the interior bottom fixed connection of intercommunication seat 14, when the device is opened and is used, pneumatic cylinder 1 stops its output and drives the downward removal of case 3, utilize the elastic deformation of return spring 21 can drive clamp plate 20 and pneumatic cylinder 1 output and upwards move this moment, case 3 and shutoff seat 4 separation and cancel the shutoff of case 3 to shutoff seat 4 this moment, and then make rivers can flow through communicating pipe 8 and input tube 6 get into valve body 2, and make rivers pass shutoff seat 4 and export after the output tube 5, when the device is closed, pneumatic cylinder 1 output drives case 3 and moves down, and make case 3 stop the transmission of rivers with shutoff seat 4, return spring 21 is compressed this moment.

Example 2:

on the basis of embodiment 1, the filter assembly further comprises an auxiliary spring 9 fixedly connected in the communicating pipe 8, one end of the auxiliary spring 9 facing the filter plate 10 is fixedly connected with the filter plate 10, and the stress of the auxiliary spring 9 can be changed when the device is stopped or the water pressure is changed, so that the auxiliary spring 9 is elastically deformed and drives the filter plate 10 to shake along the communicating pipe 8 to a certain extent, and impurity particles attached to the filter plate 10 can easily fall off.

Example 3:

on the basis of embodiment 2, the bottom of communicating tube 8 is provided with screw thread seat 12 in the intercommunication, and screw thread seat 12 is located between filter 10 and the flange 7 that is connected with communicating tube 8, and screw thread seat 12 internal thread connection has collecting pipe 13, and the top of collecting pipe 13 is provided with the opening, and the user can be with collecting pipe 13 unscrewing from screw thread seat 12 when the device stops using to empty to the impurity in the collecting pipe 13.

In all the above mentioned solutions, in which the connection between two components can be chosen according to the actual situation, a welded, bolt-and-nut-fitted connection, a bolt-or-screw connection or other known connection means, which are not described in detail herein, where reference is made to a written fixed connection, the preferred consideration is welding, although embodiments of the utility model have been shown and described, it will be understood by those skilled in the art that numerous variations, modifications, substitutions and alterations can be made to these embodiments without departing from the principle and spirit of the utility model, the scope of which is defined by the appended claims and their equivalents.

Claims (6)

1. The utility model provides a pneumatic drive's hydraulic line stop valve, includes pneumatic cylinder (1), its characterized in that: the bottom connection of pneumatic cylinder (1) is provided with auxiliary connection subassembly, auxiliary connection subassembly's bottom connection is provided with valve body (2), the output of pneumatic cylinder (1) stretches into in valve body (2) and fixedly connected with case (3), fixedly connected with in the inner chamber of valve body (2) with case (3) matched with shutoff seat (4), the both sides that valve body (2) are relative communicate respectively and are provided with output tube (5) and input tube (6), the one end intercommunication of input tube (6) back to valve body (2) is provided with filtering component, filtering component and output tube (5) all fixedly connected with flange (7) in the opposite ends, filtering component includes communicating pipe (8) that are linked together with input tube (6), communicating pipe (8) are dorsad to input tube (6) one end and flange (7) fixed connection, be provided with filter plate (10) in communicating pipe (8) inner chamber, set up multiunit filtration pore (11) on filter plate (10), auxiliary connection subassembly includes with pneumatic cylinder (1) and valve body (2) between the one end intercommunication that is provided with lubrication seat (14) between the inner chamber (14) of pneumatic cylinder (14) and the fixed connection seat (14) that is linked together, the outside of pneumatic cylinder (14) is linked together through between the communicating seat (14), a reset mechanism is arranged on the inner side of the communication seat (14).

2. A pneumatically actuated hydraulic line shut-off valve as defined in claim 1 wherein: the filter assembly further comprises an auxiliary spring (9) fixedly connected with the inside of the communicating pipe (8), and one end, facing the filter plate (10), of the auxiliary spring (9) is fixedly connected with the filter plate (10).

3. A pneumatically actuated hydraulic line shut-off valve as defined in claim 2 wherein: the bottom of communicating pipe (8) communicates and is provided with screw thread seat (12), screw thread seat (12) internal thread is connected with collecting pipe (13), the top of collecting pipe (13) is provided with the opening.

4. A pneumatically actuated hydraulic line shut-off valve as defined in claim 3 wherein: the thread seat (12) is positioned between the filter plate (10) and the flange (7) connected with the communicating pipe (8).

5. A pneumatically actuated hydraulic line shut-off valve as defined in claim 1 wherein: the lubricating mechanism comprises an injection tube (15) communicated with a communication seat (14), a piston (16) is connected in the injection tube (15) in a sliding manner, one end of the piston (16) back to the communication seat (14) is fixedly connected with a push rod (17), an extension tube (18) is arranged at the top of the piston (16) in a communicating manner, and an oilcan (19) is arranged at the top of the extension tube (18) in a communicating manner.

6. A pneumatically actuated hydraulic line shut-off valve as defined in claim 1 wherein: the reset mechanism comprises a pressing plate (20) which is clamped and fixed with the output end of the pneumatic cylinder (1), a reset spring (21) is fixedly connected to the bottom of the pressing plate (20), and the reset spring (21) is sleeved on the outer side of the output end of the pneumatic cylinder (1) and the bottom end of the reset spring is fixedly connected with the inner bottom of the communication seat (14).