CN213332522U

CN213332522U - High-sealing valve actuator

Info

Publication number: CN213332522U
Application number: CN202021742045.3U
Authority: CN
Inventors: 邱定海
Original assignee: Shanghai Lidea Solenoid Valve Co ltd
Current assignee: Shanghai Lidea Solenoid Valve Co ltd
Priority date: 2020-08-19
Filing date: 2020-08-19
Publication date: 2021-06-01
Anticipated expiration: 2030-08-19

Abstract

The utility model discloses a high-tightness valve actuator, which comprises a valve body, a supporting seat, a cylinder body, an elastic valve clack, a valve rod and a spring, wherein the valve body is provided with a channel, the side wall of the valve body is provided with a matching hole communicated with the channel, a first matching plate is arranged in the channel, a baffle plate is arranged in the supporting seat, a first sleeve hole is arranged on the baffle plate, the supporting seat is arranged at one side of the valve body, which is provided with the matching hole, the elastic valve clack is arranged between the supporting seat and the valve body, the elastic valve clack and the matching hole are oppositely arranged, the spring is arranged between the elastic valve clack and the baffle plate, the cylinder body is arranged at one side of the supporting seat, which is far away from the valve body, the valve rod is arranged in the cylinder body, the valve rod passes through the first sleeve, the supporting seat is in threaded connection with the connecting portion, so that the elastic valve clack is fixed between the valve body and the supporting seat, and the sealing performance is improved.

Description

High-sealing valve actuator

Technical Field

The utility model relates to a valve actuator technical field especially relates to a high leakproofness valve actuator.

Background

The valve actuator is an essential and important component of an automatic control system. It is used to receive the control signal from the controller and change the size of the controlled medium to maintain the controlled variable at the required value or in certain range.

For example, patent number is CN201811592088.5, the patent name is a utility model patent of dust-protection type valve actuator, it discloses that the valve actuator includes the valve body, the top of valve body is provided with the barrel, the inside of barrel is provided with the piston, inside one side of barrel has set gradually first inlet port and second inlet port from last to down, the bottom of piston is fixed with the valve rod, and the bottom of valve rod is connected with the case, the disk seat is installed on the inside top of valve body, the outside of disk seat is provided with the disk seat packing ring, the both sides of valve body are provided with feed liquor pipe and drain pipe respectively. The valve seat is opened and closed by inflating the first air inlet hole or the second air inlet hole to control the piston to move upwards or downwards.

The existing cylinder body and the valve body are of split structures and are fixed through a fastening piece, so that the sealing property between the valve rod and the valve body is difficult to guarantee, the transmission efficiency is low, and even the medium leakage phenomenon occurs.

SUMMERY OF THE UTILITY MODEL

The utility model provides a high leakproofness valve actuator has overcome prior art's difficulty, has created a novel structure high leakproofness valve actuator.

The utility model provides a high-tightness valve actuator, which comprises a valve body, a supporting seat, a cylinder body, an elastic valve clack, a valve rod and a spring, wherein the valve body is provided with a channel, the two ends of the channel are respectively an inlet and an outlet, the side wall of the valve body is provided with a matching hole communicated with the channel, the channel is internally provided with a first matching plate, the first matching plate and the matching hole are oppositely arranged, the supporting seat is of a hollow structure, a baffle plate is arranged inside the supporting seat, a first sleeve hole is arranged on the baffle plate, the supporting seat is arranged at one side of the valve body, provided with the elastic valve clack, the elastic valve clack is oppositely arranged between the supporting seat and the valve body, the spring is arranged between the elastic valve clack and the baffle plate, the cylinder body is arranged at one side of the supporting seat, which is deviated from the, the valve rod is arranged in the cylinder body, penetrates through the first sleeve hole and the spring and is in transmission connection with the elastic valve clack, one side, provided with the matching hole, of the valve body is provided with a connecting portion, the matching hole is located inside the connecting portion, the elastic valve clack is located inside the connecting portion and can cover the matching hole, and the supporting seat is in threaded connection with the connecting portion, so that the elastic valve clack is fixed between the valve body and the supporting seat.

Furthermore, the first matching plate comprises a first end and a second end, the first end is connected to the opposite side wall of the valve body, wherein the matching hole is formed in the opposite side wall, and the horizontal height of the second end is lower than that of the side wall of the valve body, wherein the matching hole is formed in the side wall of the valve body.

Further, a second matching plate is arranged on the matching hole, the second matching plate is located on one side, facing the inlet, of the first matching plate, a gap exists between the first matching plate and the second matching plate, and the second matching plate is flush with the second end.

Furthermore, one side of the elastic valve clack, which deviates from the matching hole, is provided with a first sleeving part for sleeving the spring.

Furthermore, one side of the baffle plate, which faces the elastic valve clack, is provided with a second sleeving part for sleeving the spring.

Further, a second sleeve hole is formed in the side face, connected with the supporting seat, of the cylinder body and is used for penetrating through the valve rod.

Further, a sealing ring is arranged on the second sleeve hole.

Further, the distance between the baffle and the cylinder is smaller than the distance between the baffle and the valve body.

Further, the connecting part and the elastic valve clack are both circular.

Furthermore, the supporting seat is made of transparent materials.

Due to the adoption of the technology, the utility model has the advantages of it is following:

one side that the mating holes was seted up to the valve body is provided with and is annular connecting portion, and inside the connecting portion that the mating holes is located, the elasticity valve clack was fixed in inside the connecting portion to through supporting seat and connecting portion threaded connection, so that the elasticity valve clack is fixed between valve body and supporting seat, effectively promotes the leakproofness that both connect, and effectively prevents that the fluid from passing the elasticity valve clack and causing the leakage. And the second end of first cooperation board is located the lower part of the lateral wall that the mating holes was seted up to the valve body to and be provided with the second cooperation board on the mating holes, the second cooperation board flushes with the second end, when the closed mating holes of elasticity valve clack, elasticity valve clack butt is on first cooperation board and second cooperation board, simple structure and novelty.

The present invention will be further described with reference to the accompanying drawings and examples.

Drawings

Fig. 1 is a schematic structural diagram of the high-sealing valve actuator according to the present invention;

fig. 2 is a schematic structural view of the valve body of the present invention;

fig. 3 is a schematic structural view of the support seat of the present invention.

Detailed Description

As shown in fig. 1 to 3, the high-sealing valve actuator includes a valve body 100, a support seat 200, a cylinder 300, an elastic valve flap 400, a valve rod 500, and a spring 600, the valve body 100 is provided with a passage 110, two ends of the passage 110 are respectively an inlet 111 and an outlet 112, a side wall of the valve body 100 is provided with a matching hole 120 communicated with the passage 110, the passage 110 is internally provided with a first matching plate 130, the first matching plate 130 and the matching hole 120 are oppositely arranged, the support seat 200 is of a hollow structure, the support seat 200 is internally provided with a baffle plate 210, the baffle plate 210 is provided with a first sleeve hole 211, the support seat 200 is installed at one side of the valve body 100 provided with the matching hole 120, the support seat 200 and the valve body 100 are provided with the elastic valve flap 400, the elastic valve flap 400 and the matching hole 120 are oppositely arranged, the spring 600 is arranged between the elastic valve flap 400 and the, the valve rod 500 passes through the first sleeve hole 211 and the spring 600, and is drivingly connected with the elastic valve flap 400.

As shown in fig. 1, the valve body 100 is provided with a first air inlet 310 and a second air inlet 320, and the valve rod 500 is pushed and pulled by inflating the first air inlet 310 or the second air inlet 320, so that the elastic valve flap 400 closes or opens the matching hole 120, thereby controlling the opening and closing of the valve body 100. Specifically, when the valve stem 500 is pushed

When the valve rod 500 is pulled to move upwards, the valve rod 500 drives the elastic valve flap 400 to overcome the elasticity of the spring 600 to move upwards so that a gap exists between the elastic valve flap 400 and the first matching plate 130, at the moment, the matching hole 120 is in an open state, and the fluid flowing into the inlet 111 can pass between the elastic valve flap 400 and the first matching plate 130 and flows to the outlet 112 to be discharged.

As shown in fig. 2, a connection portion 140 is disposed on a side of the valve body 100 where the fitting hole 120 is formed, the connection portion 140 is annular, and an internal thread is disposed inside the connection portion 140, wherein the fitting hole 120 is located inside the annular connection portion 140, the elastic valve flap 400 is circular and located inside the connection portion 140 and can cover the fitting hole 120, and the support seat 200 is in threaded connection with the connection portion 140, so that the elastic valve flap 400 is fixed between the valve body 100 and the support seat 200. Effectively improving the sealing of the connection and effectively preventing fluid from leaking through the resilient flap 400.

In one embodiment, the valve body 100 is a rectangular parallelepiped, the inlet 111 and the outlet 112 are located on two opposite end surfaces of the valve body 100, and the distance from the first fitting plate 130 to the inlet 111 is greater than the distance from the first fitting plate 130 to the outlet 112. The fitting hole 120 is circular and is located at a side of the valve body 100.

As shown in fig. 2, the first matching plate 130 includes a first end 131 and a second end 132, the first end 131 is connected to the opposite side wall of the valve body 100, which is provided with the matching hole 120, the second end 132 extends to the matching hole 120, and the horizontal height of the second end 132 is lower than the horizontal height of the side wall of the valve body 100, which is provided with the matching hole 120, i.e. the second end 132 is located at the lower part of the side wall of the valve body 100, which is provided with the matching hole 120, so that when the valve rod 500 drives the elastic valve flap 400 to move down and close the matching hole 120, referring to fig. 1, the horizontal height of the middle position of the elastic valve flap 400 is lower than the horizontal height of the side position of the elastic valve flap 400, and.

Further, a second fitting plate 150 is disposed on the fitting hole 120, the second fitting plate 150 is located on a side of the first fitting plate 130 facing the inlet 111, a gap exists between the first fitting plate 130 and the second fitting plate 150, and the second fitting plate 150 is flush with the second end 132, so that the elastic valve flap 400 abuts against the first fitting plate 130 and the second fitting plate 150, and the purpose of well closing the fitting hole 120 can be achieved.

As shown in fig. 1, a first sleeving part 410 is disposed on a side of the elastic valve flap 400 departing from the matching hole 120, and is used for sleeving the spring 600, and the elastic valve flap 400 and the sleeving part 410 may adopt a split structure and are fixed by a bonding manner. The resilient flap 400 may be made of rubber.

As shown in fig. 3, a second nesting portion 211 is disposed on a side of the baffle 210 facing the elastic valve flap 400, such that two ends of the spring 600 can be nested with the first nesting portion 410 and the second nesting portion 211, respectively, to fix the spring 600 between the baffle 210 and the elastic valve flap 400. The first engaging portion 410 may be a cylinder, and the second engaging portion 211 may be annular and extend along an edge of the first engaging hole 211.

The supporting base 200 may be made of a transparent material to observe whether a fluid leakage occurs therein.

As shown in fig. 1, a second sleeve hole 330 is formed on a side surface of the cylinder 300 connected to the support base 200, so that the valve rod 500 passes through the second sleeve hole 330. The second sleeve hole 330 may be provided with a sealing ring 600 to improve the sealing performance of the connection.

After passing through the second sleeve hole 330, the valve stem 500 passes through the first sleeve hole 211 and is connected to the first sleeve portion 410. The spring 600 prevents the elastic valve flap 400 from being broken due to a large force when the valve rod 500 is pulled back.

The first and

second eyelets

211 and 330 are coaxially disposed. A sealing ring 600 can also be arranged in the first sleeve hole 211 to improve the sealing performance between the valve rod 500 and the supporting seat 200. Of course, the diameter of the first sleeve bore 211 may be greater than the diameter of the valve stem 500.

As shown in fig. 1 and 3, the distance between the baffle 210 and the cylinder 300 is smaller than the distance between the baffle 210 and the valve body 100.

In summary, the annular connecting portion 140 is disposed on one side of the valve body 100, where the mating hole 120 is formed, the mating hole 120 is located inside the connecting portion 140, and the resilient valve flap 400 is fixed inside the connecting portion 140 and is in threaded connection with the connecting portion 140 through the supporting seat 200, so that the resilient valve flap 400 is fixed between the valve body 100 and the supporting seat 200, the sealing performance of the connection between the valve body 100 and the supporting seat 200 is effectively improved, and fluid leakage caused by the fluid passing through the resilient valve flap 400 is effectively prevented. And the second end 132 of the first matching plate 130 is located at the lower part of the sidewall of the valve body 100, where the matching hole 120 is opened, and the matching hole 120 is provided with the second matching plate 150, the second matching plate 150 is flush with the second end 132, when the elastic valve flap 400 closes the matching hole 120, the elastic valve flap 400 abuts against the first matching plate 130 and the second matching plate 150, and the structure is simple and novel.

The above-mentioned embodiments are only used for illustrating the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to limit the scope of the present invention in terms of implementation, which is not limited by the present embodiment, i.e. all equivalent changes or modifications made in accordance with the spirit disclosed by the present invention still fall within the scope of the present invention.

Claims

1. A high-sealing valve actuator is characterized by comprising a valve body, a supporting seat, a cylinder body, an elastic valve clack, a valve rod and a spring, wherein the valve body is provided with a channel, the two ends of the channel are respectively an inlet and an outlet, the side wall of the valve body is provided with a matching hole communicated with the channel, the channel is internally provided with a first matching plate, the first matching plate and the matching hole are oppositely arranged, the supporting seat is of a hollow structure, a baffle plate is arranged inside the supporting seat, the baffle plate is provided with a first sleeve hole, the supporting seat is installed at one side of the valve body, provided with the matching hole, the elastic valve clack is arranged between the supporting seat and the valve body, the elastic valve clack and the matching hole are oppositely arranged, the spring is arranged between the elastic valve clack and the baffle plate, and the cylinder body is installed at one side of, the valve rod is arranged in the cylinder body, penetrates through the first sleeve hole and the spring and is in transmission connection with the elastic valve clack, one side, provided with the matching hole, of the valve body is provided with a connecting portion, the matching hole is located inside the connecting portion, the elastic valve clack is located inside the connecting portion and can cover the matching hole, and the supporting seat is in threaded connection with the connecting portion, so that the elastic valve clack is fixed between the valve body and the supporting seat.

2. The high-sealability valve actuator of claim 1 wherein the first engagement plate comprises a first end and a second end, the first end being connected to the opposite side wall of the valve body where the engagement hole is formed, the second end having a lower level than the side wall of the valve body where the engagement hole is formed.

3. The high-sealability valve actuator of claim 2 wherein a second mating plate is provided on the mating hole, the second mating plate is located on the side of the first mating plate facing the inlet, a gap exists between the first and second mating plates, and the second mating plate is flush with the second end.

4. The high-sealability valve actuator of claim 1 wherein the side of the resilient flap facing away from the mating hole is provided with a first nesting portion for nesting the spring.

5. The high-sealability valve actuator of claim 4 wherein the side of the flap facing the resilient flap is provided with a second nesting portion for nesting the spring.

6. The high-sealability valve actuator of claim 1 wherein the side of the cylinder connected to the support seat is provided with a second set of holes for passing through the valve stem.

7. The high-tightness valve actuator according to claim 6, wherein a sealing ring is disposed on the second sleeve hole.

8. The high-sealability valve actuator of claim 1 wherein the distance from the baffle to the barrel is less than the distance from the baffle to the valve body.

9. The high-sealability valve actuator of claim 1 wherein the connecting portion and the resilient flap are each circular.

10. The high-sealability valve actuator of claim 1 wherein the support seat is made of a transparent material.