CN219317770U

CN219317770U - Balancing valve

Info

Publication number: CN219317770U
Application number: CN202320418549.7U
Authority: CN
Inventors: 康乐; 康彤
Original assignee: Beijing Pafeinuo Precision Machinery Co ltd
Current assignee: Beijing Pafeinuo Precision Machinery Co ltd
Priority date: 2023-03-01
Filing date: 2023-03-01
Publication date: 2023-07-07
Anticipated expiration: 2033-03-01

Abstract

The application relates to a balanced valve relates to valve body technical field, and it includes valve body and valve rod for solving the comparatively hard problem of manual rotation start-stop valve, the through-hole has been seted up to the valve body inside, the through-hole both ends are used for respectively with the pipeline intercommunication, valve body lateral wall intercommunication has the control tube, valve rod one end is located the control tube and is connected with the valve clack, the valve clack activity sets up in the through-hole and can separate the through-hole both sides, the one end that the valve clack was kept away from to the valve rod is provided with drive assembly, drive assembly is including the actuating source of drive valve rod in the control tube reciprocating motion. This application has the effect that reduces constructor working strength.

Description

Balancing valve

Technical Field

The application relates to the technical field of valve bodies, in particular to a balance valve.

Background

The balance valve is a valve with special functions, and the valve is not special in itself, but only in the difference between the use function and the place. In some industries, because of the large pressure or flow difference of the medium (various flowable substances) in each part of the pipeline or the container, in order to reduce or balance the difference, valves are arranged between the corresponding pipelines or the containers to adjust the relative balance of the pressures at two sides or achieve the balance of the flow by a diversion method.

At present, most balance valves are opened and closed by rotating a control handle by constructors or the flow of pipelines at the positions of the valves is controlled, but when the pressure difference in the opened and closed valves is large, the manual rotation of the opened and closed valves is laborious.

Disclosure of Invention

In order to reduce the working strength of constructors, the application provides a balance valve.

The application provides a balanced valve adopts following technical scheme:

the utility model provides a balanced valve, includes valve body and valve rod, the through-hole has been seted up to the inside of valve body, the through-hole both ends are used for respectively with the pipeline intercommunication, valve body lateral wall intercommunication has the control tube, valve rod one end is located the control tube and is connected with the valve clack, the valve clack activity sets up in the through-hole and can separate the through-hole, the one end that the valve clack was kept away from to the valve rod is provided with drive assembly, drive assembly includes the drive source of drive valve rod reciprocating motion in the control tube.

Through adopting above-mentioned technical scheme, when the drive source drive valve rod reciprocates in the control pipe, valve rod control valve clack removes in the through-hole to control valve clack realizes opening, closing of through-hole, and then makes valve body both sides pipeline carry out gas or liquid circulation, thereby the differential pressure in the control both sides pipeline. The driving source drives the valve rod to rotate, so that the working strength of workers can be reduced, and the time and effort saving effect is achieved.

Preferably, a gland is arranged at one end, far away from the valve body, of the control tube, threads are arranged on the peripheral side wall of the valve rod, the valve rod penetrates through the gland and is in threaded connection with the gland, and the driving source is used for driving the valve rod to rotate.

Through adopting above-mentioned technical scheme, when the valve rod is rotating, owing to receive the restriction effect of screw thread, the valve rod can carry out reciprocating motion with the vertical direction of gland to drive the valve clack and carry out reciprocating motion in the through-hole.

Preferably, one end of the valve rod, which is far away from the valve clack, is fixedly connected with a first gear, the driving source comprises an output shaft capable of rotating, the output shaft is fixedly connected with a second gear, and the first gear is meshed with the second gear.

Through adopting above-mentioned technical scheme, when the output shaft rotation is driven to the drive source and then drives the second gear rotation, the second gear is to driving first gear rotation, and then makes the valve rod rotate. When the valve rod rotates, the valve rod can reciprocate in the vertical direction with the gland due to the limiting effect of the threads, so that the valve clack is driven to reciprocate in the through hole, and compared with manual valve rod rotation, the valve rod rotation device is time-saving and labor-saving.

Preferably, two sides of the first gear are provided with blocking rings, and the blocking rings can be abutted against the end face of the second gear.

Through adopting above-mentioned technical scheme, because the valve rod can remove when pivoted, and the second gear is fixed state, in order to avoid second gear and the circumstances that breaks away from appears in first gear, the spacer ring plays spacing effect to the terminal surface of second gear for the second gear is difficult for breaking away from on the first gear.

Preferably, the first gear has a larger diameter and a larger number of teeth than the second gear.

Through adopting above-mentioned technical scheme, when diameter and the number of teeth of second gear are less than first gear, can more accurate control first gear pivoted angle, the travel distance of valve clack in the through-hole is convenient for more accurate regulation.

Preferably, an inclined plane for blocking the through hole is arranged in the valve body, a positioning hole is formed in the inclined plane, the valve clack can be inserted into the positioning hole, and a positioning ring is arranged on the peripheral side wall of the valve clack and is in butt joint with the inclined plane.

Through adopting above-mentioned technical scheme, when the valve clack inserts in the locating hole, the holding ring lateral wall supports tightly with the inclined plane for gas or liquid in the pipeline of through-hole both sides is difficult for circulating, thereby realizes the separation to the through-hole.

Preferably, the valve clack is sleeved with an elastic gasket, and the elastic gasket is used for abutting against the side wall of the positioning hole.

By adopting the technical scheme, the sealing performance of the valve clack and the side wall of the positioning hole can be further enhanced by the elastic gasket, so that gas and liquid are not easy to circulate in the through holes on the two sides of the valve clack.

Preferably, pressure measuring nozzles communicated with the through holes are arranged at two ends of the valve body.

By adopting the technical scheme, the pressure measuring nozzle can measure the air pressure value in the pipelines at the two ends of the valve body, so that the pressure difference in the pipelines at the two ends can be conveniently observed.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the driving source drives the valve rod to rotate, so that the working intensity of workers is reduced, and the time and effort are saved;

2. when the driving source drives the second gear to rotate, the second gear drives the first gear to rotate, and then the valve rod is enabled to rotate. When the valve rod rotates, the valve rod can reciprocate in the vertical direction with the gland due to the limiting effect of the threads, so that the valve clack is driven to reciprocate in the through hole, and compared with manual valve rod rotation, the valve rod rotation device is time-saving and labor-saving.

Drawings

FIG. 1 is a schematic overall structure of an embodiment of the present application;

fig. 2 is a schematic cross-sectional view of an embodiment of the present application.

Reference numerals illustrate: 1. a valve body; 11. a through hole; 12. an inclined plane; 121. positioning holes; 13. a control tube; 131. an annular groove; 14. a gland; 15. a locking tube; 16. a pressure measuring nozzle; 2. a valve flap; 21. a positioning ring; 22. an elastic washer; 3. a valve tube; 31. a fixing ring; 4. a valve stem; 41. a first gear; 42. a blocking ring; 5. a driving source; 51. a second gear; 52. an output shaft; 6. a bracket; 61. a clamp; 62. a connecting block; 63. and fixing the box.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-2.

The embodiment of the application discloses a balance valve. Referring to fig. 1 and 2, the valve comprises a valve body 1 and a valve rod 4, wherein the valve body 1 is tubular, a through hole 11 is formed in the valve body, and two ends of the valve body 1 are respectively connected with a pipeline. The inside inclined plane 12 that is used for sealing through-hole 11 that is provided with of valve body 1, has offered locating hole 121 on the inclined plane 12, and valve body 1 lateral wall is fixed with the control pipe 13 with through-hole 11 intercommunication, and the axis of control pipe 13 is perpendicular with the plane that inclined plane 12 is located.

Referring to fig. 2, a valve tube 3 is disposed in a control tube 13, the valve tube 3 is cylindrical, a fixing ring 31 is fixedly connected to the valve tube 3, the fixing ring 31 and the valve tube 3 are coaxially disposed, the control tube 13 is formed by splicing two through tubes, an annular groove 131 is disposed at a connecting portion of the two through tubes, and a positioning ring 21 is clamped in the annular groove 131. The outer side wall of the valve tube 3 is abutted against the inner side wall of the control tube 13, so that the tightness of the through tube is enhanced.

The valve pipe 3 is close to the one end of through-hole 11 and is fixed with valve clack 2, and valve clack 2 is cylindric and slides and set up in valve pipe 3. The circumferential wall of one end, far away from the valve pipe 3, of the valve clack 2 is fixedly connected with a positioning ring 21, one end of the valve clack 2 can be inserted into the positioning hole 121, the positioning ring 21 is abutted against the inclined plane 12, the outer wall of the valve clack 2 positioned in the positioning hole 121 is fixedly connected with an elastic gasket 22, the elastic gasket 22 is made of rubber, and the elastic gasket 22 can be abutted against the side wall of the positioning hole 121.

When one end of the valve clack 2 enters the positioning hole 121 and the elastic gasket 22 is abutted against the side wall of the positioning hole 121, the valve clack 2 is separated from the through hole 11, so that the air pressure in the connecting pipelines at the two ends of the valve body 1 cannot circulate. When the valve clack 2 moves towards the direction of the valve pipe 3 away from the inclined surface 12, the through holes 11 are in a through-flow state, so that gas or liquid in the pipelines at the two ends of the valve body 1 can flow.

Referring to fig. 2, a gland 14 is fixedly connected to one end of the control tube 13 far away from the valve body 1, a locking tube 15 is fixedly connected to one surface of the gland 14 facing into the valve tube 3, threads are distributed on the inner side wall of the locking tube 15, and one end of the valve rod 4 sequentially penetrates through the gland 14 and the locking tube 15 and is in threaded connection with the locking tube 15.

Referring to fig. 1, one end of the valve rod 4 passing through the locking pipe 15 is fixedly connected with the axle center of the valve clack 2, one end of the valve rod 4 far away from the valve clack 2 is coaxially provided with a first gear 41, and the valve body 1 is detachably connected with a bracket 6. The support 6 includes the clamp 61 of locking on valve body 1 and with clamp 61 fixed connection's connecting block 62, the one end that valve body 1 was kept away from to connecting block 62 is connected with fixed box 63, fixed box 63 internal fixation has the pivoted actuating source 5 of drive first gear 41, actuating source 5 includes rotatable output shaft 52, actuating source 5 is servo motor, servo motor's output shaft 52 fixedly connected with second gear 51, second gear 51 and first gear 41 meshing and second gear 51's number of teeth and diameter are all less than first gear 41. The rotation precision of the second gear 51 is more accurate, so that the precision of the displacement of the valve clack 2 in the through hole 11 is improved. And the thickness of the first gear 41 is larger than that of the first gear 41, so that the second gear 51 and the first gear 41 can keep a meshed state when the first gear 41 moves.

Referring to fig. 1, a blocking ring 42 is connected to both sides of the first gear 41, and the blocking ring 42 abuts against the tooth side wall of the first gear 41. When the second gear 51 rotates in engagement with the first gear 41, the blocking ring 42 can limit the second gear 51, so that the second gear 51 is not easy to separate from the first gear 41.

The side walls of the two ends of the valve body 1 are respectively provided with a pressure measuring nozzle 16 for measuring the pressure inside the pipelines at the two ends of the valve body 1, and the pressure measuring nozzles 16 are communicated with the through holes 11. According to the air pressure value measured by the pressure measuring nozzle 16, the position of the valve clack 2 in the through hole 11 is conveniently adjusted, so that the pressure in the channels at the two ends of the valve body 1 is relatively balanced.

The driving source 5 drives the second gear 51 to rotate when being started, the second gear 51 is transmitted to the first gear 41, the first gear 41 and the valve rod 4 rotate, when the valve rod 4 rotates forward or backward, the valve rod 4 can reciprocate in the locking pipe 15, so that the valve clack 2 is driven to reciprocate in the valve pipe 3, the opening and closing of the through hole 11 of the valve clack 2 is controlled, and the force for manually rotating the valve rod 4 is saved.

The implementation principle of the balance valve in the embodiment of the application is as follows: according to the air pressure value measured by the pressure measuring nozzle 16, the circulation of air pressure at two ends of the valve body 1 is regulated, the driving source 5 is started to enable the second gear 51 to rotate, the first gear 41 is driven to rotate while the second gear 51 rotates, the valve rod 4 is driven to rotate while the first gear 41 rotates, the valve rod 4 is limited by the internal thread of the locking pipe 15, and the valve rod 4 can reciprocate in the locking pipe 15 while rotating.

The valve rod 4 moves to drive the valve clack 2 to move in the through hole 11, so that the flow of gas or liquid in the through hole 11 is regulated, and the pressure in the channels at the two ends of the valve body 1 is relatively balanced. And the valve rod 4 will drive the second gear 51 to move when moving, when the first gear 41 is located at the edges of two ends of the second gear 51, the blocking ring 42 limits the first gear 41, so that the first gear 41 is not easy to separate from the second gear 51.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides a balanced valve, its characterized in that, includes valve body (1) and valve rod (4), through-hole (11) have been seted up to valve body (1) inside, through-hole (11) both ends are used for respectively with the pipeline intercommunication, valve body (1) lateral wall intercommunication has control tube (13), valve rod (4) one end is located control tube (13) and is connected with valve clack (2), valve clack (2) activity sets up in through-hole (11) and can separate through-hole (11), valve rod (4) are kept away from the one end of valve clack (2) and are provided with drive assembly, drive assembly includes drive valve rod (4) reciprocating motion's actuating source (5) in control tube (13).

2. A balance valve according to claim 1, characterized in that a gland (14) is arranged at the end of the control tube (13) far away from the valve body (1), threads are arranged on the peripheral side wall of the valve rod (4), the valve rod (4) passes through the gland (14) and is in threaded connection with the gland (14), and the driving source (5) is used for driving the valve rod (4) to rotate.

3. A balance valve according to claim 2, characterized in that a first gear (41) is fixedly connected to the end of the valve rod (4) remote from the valve clack (2), the driving source (5) comprises an output shaft (52) capable of rotating, the output shaft (52) is fixedly connected with a second gear (51), and the first gear (41) is meshed with the second gear (51).

4. A balancing valve according to claim 3, characterized in that the first gear (41) is provided with a blocking ring (42) on both sides, which blocking ring (42) can abut against the end face of the second gear (51).

5. A balancing valve according to claim 4, characterized in that the first gear (41) has a larger diameter and a larger number of teeth than the second gear (51).

6. The balance valve according to claim 1, characterized in that an inclined plane (12) for blocking the through hole (11) is arranged in the valve body (1), a positioning hole (121) is formed in the inclined plane (12), the valve clack (2) can be inserted into the positioning hole (121), a positioning ring (21) is arranged on the peripheral side wall of the valve clack (2), and the positioning ring (21) is abutted to the inclined plane (12).

7. A balance valve according to claim 1, characterized in that the valve flap (2) is provided with a resilient gasket (22), the resilient gasket (22) being arranged to abut against the side wall of the positioning hole (121).

8. A balancing valve according to claim 1, characterized in that the valve body (1) is provided with pressure taps (16) at both ends communicating with the through holes (11).