CN217355630U

CN217355630U - Flow regulating valve for regulating flow at inlet and outlet of pipeline

Info

Publication number: CN217355630U
Application number: CN202221233319.5U
Authority: CN
Inventors: 崔玲玲; 刘小文; 邱志铭; 洪晓婷
Original assignee: Xiamen Freet Fluid Control Co ltd
Current assignee: Xiamen Freet Fluid Control Co ltd
Priority date: 2022-05-23
Filing date: 2022-05-23
Publication date: 2022-09-02
Anticipated expiration: 2032-05-23

Abstract

The utility model relates to the technical field of flow regulating valves, in particular to a flow regulating valve for regulating the flow of an inlet and an outlet of a pipeline, which comprises a valve body, the top end of the valve body is provided with an upper valve cover, the upper valve cover is provided with a mounting hole, the mounting hole is provided with a main shaft, a shaft sleeve is arranged between the mounting hole and the main shaft, a crank is arranged at the bottom end of the main shaft, a first cylindrical pin is arranged on the crank, a connecting rod is arranged on the first cylindrical pin, a diversion shell is arranged inside the valve body, a connecting rod is arranged between the inner wall of the valve body and the diversion shell, the inner wall of the diversion shell is provided with a guide sleeve and a diversion ring, one end of the diversion ring and one end of the valve body are provided with a valve seat, the flow guide ring is provided with the flow guide hole, so that the problems that when the existing flow regulating valve is used, the front-back pressure difference of the valve is large, cavitation and vibration can be caused by regulating the flow by the valve, and the valve shaft and the sealing element are damaged by long-time flow regulation operation are solved.

Description

Flow regulating valve for regulating flow at inlet and outlet of pipeline

Technical Field

The utility model relates to a flow regulating valve technical field specifically is a flow regulating valve of flow is adjusted to pipeline exit.

Background

As is well known, the pipeline installation arrangement often needs to be opened and closed by a valve to achieve the purpose of regulating the flow, and the butterfly valve has limitation in flow regulation. The energy loss of water in the water delivery process of the gravity flow long-distance water delivery pipeline is divided into two types, namely, along-the-way loss and local loss, and the head loss caused by the opening degree of a butterfly valve belongs to the local loss. In the engineering process, the pressure of the pipeline can be adjusted by adjusting the opening of the butterfly valve group, and the flow of the pipeline is controlled. In addition, when the pressure difference between the upstream and the downstream of the butterfly valve is large, cavitation and vibration are easy to occur. The electric butterfly valve is used as an overhaul valve and is technically reliable, economical and reasonable, the operation state of the electric butterfly valve is generally fully opened or fully closed, the electric butterfly valve can be used for regulating flow only when the pressure difference between the upstream and the downstream of the valve is small, the pressure difference between the front and the rear of the valve at the position where the flow needs to be regulated in engineering is large, the valve can be used for regulating flow to cause cavitation and vibration, and the valve rotating shaft and a sealing piece can be damaged when the flow is regulated for a long time.

When the existing flow regulating valve is used, the front-back pressure difference of the valve is large, cavitation and vibration can be caused by regulating the flow by using the valve, and the valve shaft and a sealing element of the valve can be damaged by long-time flow regulation operation.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

To the deficiency of the prior art, the utility model provides a pipeline is imported and exported and is adjusted the accent of flow and flow valve.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a flow regulating valve for regulating flow at an inlet and an outlet of a pipeline comprises a valve body, wherein an upper valve cover is arranged at the top end of the valve body, a mounting hole is formed in the upper valve cover and is communicated with the inside of the valve body, a main shaft is arranged on the mounting hole and extends to the inside of the valve body, a shaft sleeve is arranged between the mounting hole and the main shaft, a crank is arranged at the bottom end of the main shaft, a first cylindrical pin is arranged on the crank, a connecting rod is arranged on the first cylindrical pin, a flow guide shell is arranged inside the valve body, a connecting rod is arranged between the inner wall of the valve body and the flow guide shell, a guide sleeve and a flow guide ring are arranged on the inner wall of the flow guide shell, a valve seat is arranged at one end of the flow guide ring, a sleeve is arranged between the flow guide ring and the valve seat, the guide sleeve is arranged at one end of the flow guide ring, and a flow guide hole is formed in the flow guide ring, the valve comprises a valve body, a guide sleeve, a plurality of guide holes, a valve core seat, a support rod, a second cylindrical pin, a connecting stud and a screw hole, wherein the guide sleeve is provided with the valve core seat, one end of the valve core seat is provided with the support rod, the support rod is provided with the second cylindrical pin, the second cylindrical pin is provided with the connecting stud, one end of the connecting rod is provided with the screw hole, the connecting stud is in threaded connection with the screw hole, the connecting stud is provided with a nut, and two ends of the valve body are provided with flanges.

In order to improve the supporting effect to the blower inlet casing, the utility model discloses the improvement has, the vaulting pole is equipped with a plurality ofly.

In order to improve the anticorrosion effect, the utility model discloses the improvement has, scribble anticorrosive paint on the inner wall of valve body.

In order to improve the sealing effect, the utility model discloses the improvement has, the top of axle sleeve is equipped with O type sealing washer.

In order to improve the sealing effect, the utility model discloses the improvement has, the disk seat with be equipped with the nitrile rubber sealing washer between the sleeve.

In order to improve the sealing effect, the utility model discloses the improvement has, the water conservancy diversion ring with be equipped with the special type sealing washer between the uide bushing.

(III) advantageous effects

Compared with the prior art, the utility model provides a pipeline is imported and exported flow regulation valve of regulating flow possesses following beneficial effect:

the flow regulating valve for regulating flow at the inlet and the outlet of the pipeline is characterized in that a valve body is connected with a pipeline appointed by personnel through flanges at two ends, a reduction box of a driving device is connected with a main shaft on a shaft sleeve in a mounting hole, the driving device is common driving device in the existing life, such as a motor and the like, the structure is not described in detail, the main shaft is rotated by the driving device, the main shaft rotates on the shaft sleeve, the main shaft drives a crank to rotate, the angle between the crank and a connecting rod is regulated through a first cylindrical pin on the crank, the rotating angle of the connecting rod drives a connecting stud on a screw hole to rotate, the connecting stud is fixed on the screw hole through a nut, the connecting stud drives a second cylindrical pin to move, the angle of the connecting stud on a support rod is regulated through the second cylindrical pin, the second cylindrical pin is driven to move through the connecting stud, the support rod drives a valve core seat to move on a guide sleeve of a flow guide shell, make the valve core case remove to on the water conservancy diversion ring, a plurality of water conservancy diversion holes on the valve core case contact water conservancy diversion ring, adjust the flow, through the sleeve between disk seat and the water conservancy diversion ring, improve sealed effect, high durability and convenient installation, only need rotate the main shaft during use and carry out the switch of valve, thereby reach the purpose of throttle, convenient operation is nimble and various, according to the switch degree of difficulty, but manually operation, or can increase drive arrangement and carry out the transmission with the reducing gear box, also can join in marriage the long-range or operation nearby of electric actuator, solved current flow control valve when using, the pressure differential is great around the valve, can cause cavitation and vibration with valve regulated flow, long-time regulated flow operation will cause the problem of harm to valve door-hinge and sealing member.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view and a half sectional view of the structure of the present invention;

fig. 3 is a top half sectional view of the structure of the present invention.

In the figure: 1. a valve body; 2. an upper valve cover; 3. a main shaft; 4. a crank; 5. a first cylindrical pin; 6. a connecting rod; 7. a guide shell; 8. a connecting rod; 9. a guide sleeve; 10. a flow guide ring; 11. a valve seat; 12. a sleeve; 13. a flow guide hole; 14. a stay bar; 15. a second cylindrical pin; 16. connecting a stud; 17. a nut; 18. A flange; 19. a shaft sleeve; 20. an O-shaped sealing ring; 21. a nitrile rubber seal ring; 22. a special sealing ring; 23. and (4) a valve core seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention relates to a flow regulating valve for regulating flow rate at an inlet and an outlet of a pipeline, comprising a valve body 1, wherein an upper valve cover 2 is disposed on the top end of the valve body 1, a mounting hole is disposed on the upper valve cover 2, the mounting hole is communicated with the inside of the valve body 1, a main shaft 3 is disposed on the mounting hole, the main shaft 3 extends to the inside of the valve body 1, a shaft sleeve 19 is disposed between the mounting hole and the main shaft 3, a crank 4 is disposed at the bottom end of the main shaft 3, a first cylindrical pin 5 is disposed on the crank 4, a connecting rod 6 is disposed on the first cylindrical pin 5, a guide shell 7 is disposed inside the valve body 1, a connecting rod 8 is disposed between the inner wall of the valve body 1 and the guide shell 7, a guide sleeve 9 and a guide ring 10 are disposed on the inner wall of the guide shell 7, and a valve seat 11 is disposed at one end of the guide ring 10 and the valve body 1, a sleeve 12 is arranged between the guide ring 10 and the valve seat 11, the guide sleeve 9 is installed at one end of the guide ring 10, guide holes 13 are formed in the guide ring 10, a plurality of guide holes 13 are formed in the guide sleeve 9, a valve core seat 23 is arranged on the guide sleeve 9, a support rod 14 is arranged at one end of the valve core seat 23, a second cylindrical pin 15 is arranged on the support rod 14, a connecting stud 16 is arranged on the second cylindrical pin 15, a screw hole is formed in one end of the connecting rod 6, the connecting stud 16 is in threaded connection with the screw hole, a nut 17 is arranged on the connecting stud 16, and flanges 18 are arranged at two ends of the valve body 1.

In this embodiment, the plurality of support rods 14 are provided, so as to improve the support effect on the guide shell 7.

In this embodiment, scribble anticorrosive paint on the inner wall of valve body 1, scribble anticorrosive paint on the inner wall through valve body 1, improve anticorrosive effect.

In this embodiment, the top end of the shaft sleeve 19 is provided with an O-ring 20, and the sealing effect is improved by the O-ring 20 at the top end of the shaft sleeve 19.

In this embodiment, a nitrile rubber sealing ring 21 is disposed between the valve seat 11 and the sleeve 12, and the sealing effect between the valve seat 11 and the sleeve 12 is improved by the nitrile rubber sealing ring 21 between the valve seat 11 and the sleeve 12.

In this embodiment, a special sealing ring 22 is disposed between the guide ring 10 and the guide sleeve 9, and the sealing effect between the guide ring 10 and the guide sleeve 9 is improved by the special sealing ring 22 between the guide ring 10 and the guide sleeve 9.

To sum up, when the flow regulating valve for regulating flow at the inlet and the outlet of the pipeline is used, the valve body 1 is connected with the pipeline appointed by a person through the flanges 18 at the two ends, the reduction gearbox of the driving device is connected with the main shaft 3 on the shaft sleeve 19 in the mounting hole, the driving device is the common driving device in the existing life, such as a motor and the like, and details are not described in the structure, the main shaft 3 is rotated on the shaft sleeve 19 through the driving device, the main shaft 3 drives the crank 4 to rotate, the angle between the crank 4 and the connecting rod 6 is regulated through the first cylindrical pin 5 on the crank 4, the rotating angle of the connecting rod 6 drives the connecting stud 16 on the screw hole to rotate, the connecting stud 16 is fixed on the screw hole through the nut 17, the connecting stud 16 drives the second cylindrical pin 15 to move, the angle of the connecting stud 16 on the support rod 14 is regulated through the second cylindrical pin 15, the connecting stud 16 drives the second cylindrical pin 15 to move, the second cylindrical pin 15 drives the support rod 14 to move, the support rod 14 drives the valve core seat 23 to move on the guide sleeve 9 of the guide shell 7, the valve core seat 23 moves on the guide ring 10, the valve core seat 23 contacts with the plurality of guide holes 13 on the guide ring 10 to regulate the flow, the sleeve 12 between the valve seat 11 and the guide ring 10 improves the sealing effect, is convenient to install, only needs to rotate the main shaft 3 to open and close the valve when in use, thereby achieving the purpose of throttling, being convenient, flexible and various to operate, being manually operated according to the difficulty degree of opening and closing, or the reduction gearbox can be added for driving the driving device to carry out transmission, and the electric actuating mechanism can be matched for remote or nearby operation, thereby solving the problems that when the existing flow regulating valve is used, the pressure difference before and after the valve is large, cavitation and vibration can be caused by adjusting the flow by the valve, and the valve shaft and the sealing element of the valve can be damaged by long-time flow adjusting operation.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The flow regulating valve for regulating flow at an inlet and an outlet of a pipeline is characterized by comprising a valve body (1), wherein an upper valve cover (2) is arranged at the top end of the valve body (1), a mounting hole is formed in the upper valve cover (2) and is communicated with the inside of the valve body (1), a main shaft (3) is arranged on the mounting hole, the main shaft (3) extends to the inside of the valve body (1), a shaft sleeve (19) is arranged between the mounting hole and the main shaft (3), a crank (4) is arranged at the bottom end of the main shaft (3), a first cylindrical pin (5) is arranged on the crank (4), a connecting rod (6) is arranged on the first cylindrical pin (5), a flow guide shell (7) is arranged inside the valve body (1), a connecting rod (8) is arranged between the inner wall of the valve body (1) and the flow guide shell (7), a guide sleeve (9) and a flow guide ring (10) are arranged on the inner wall of the flow guide shell (7), the guide ring (10) and one end of the valve body (1) are provided with a valve seat (11), a sleeve (12) is arranged between the guide ring (10) and the valve seat (11), the guide sleeve (9) is installed at one end of the guide ring (10), a guide hole (13) is formed in the guide ring (10), a plurality of guide holes (13) are formed in the guide hole (13), a valve core seat (23) is formed in the guide sleeve (9), a support rod (14) is arranged at one end of the valve core seat (23), a second cylindrical pin (15) is arranged on the support rod (14), a connecting stud (16) is arranged on the second cylindrical pin (15), a screw hole is formed in one end of the connecting rod (6), the connecting stud (16) is in threaded connection with the screw hole, a nut (17) is arranged on the connecting stud (16), and flanges (18) are arranged at two ends of the valve body (1).

2. The flow regulating valve for regulating the flow of an inlet/outlet pipe of a pipeline according to claim 1, wherein the stay (14) is provided in plurality.

3. The flow regulating valve for regulating flow at an inlet and an outlet of a pipeline as claimed in claim 2, wherein the inner wall of the valve body (1) is coated with anticorrosive paint.

4. The flow regulating valve for regulating the flow of an inlet/outlet pipeline according to claim 3, wherein the top end of the shaft sleeve (19) is provided with an O-shaped sealing ring (20).

5. The flow regulating valve for regulating flow at an inlet and an outlet of a pipeline as claimed in claim 4, wherein a nitrile rubber sealing ring (21) is arranged between the valve seat (11) and the sleeve (12).

6. The flow regulating valve for regulating the flow of an inlet and an outlet of a pipeline according to claim 5, characterized in that a special sealing ring (22) is arranged between the flow guide ring (10) and the guide sleeve (9).