CN217762163U

CN217762163U - Electric explosion-proof ball valve

Info

Publication number: CN217762163U
Application number: CN202221803975.4U
Authority: CN
Inventors: 陈芳芳; 卫双平
Original assignee: Shanghai Bangsong Automatic Control Valve Co ltd
Current assignee: Shanghai Bangsong Automatic Control Valve Co ltd
Priority date: 2022-07-13
Filing date: 2022-07-13
Publication date: 2022-11-08
Anticipated expiration: 2032-07-13

Abstract

The application discloses electronic explosion-proof ball valve relates to valve technical field, improves unable the changing after compression spring elasticity descends, leads to the problem of the explosion-proof effect inefficacy of valve body easily, including valve body, valve ball, valve rod, casing and driving piece, the limbers has been seted up at the middle part of valve ball, the bottom that the valve ball is located the limbers has seted up the buffering mouth, the installing port that is linked together with the buffering mouth is seted up to the bottom of valve body, the end cover is installed to the bottom of installing port, the interior diapire fixed mounting of end cover has compression spring, compression spring's upper end fixedly connected with buffer block, buffer block sliding connection is in the buffering mouth. This application is through the setting of end cover, reset spring, joint piece, joint groove and pull rod, and after long-term the use, but the end cover is pulled down, is convenient for change the compression spring in the end cover, reduces the circumstances that leads to the explosion-proof effect inefficacy of valve body because of compression spring elasticity descends.

Description

Electric explosion-proof ball valve

Technical Field

The utility model relates to the field of valves, especially, relate to an electronic explosion-proof ball valve.

Background

The electric ball valve is an important actuating mechanism in an industrial automation control system. An electric ball valve is a valve that performs a rotary motion about the axis of a valve stem according to the movement pattern of a valve flap. The valve seat port varies in direct proportion to the valve flap travel. The pipe pressure element is mainly used for cutting off or connecting a medium in a pipeline, can also be used for regulating and controlling fluid, and is a pipe pressure element for industrial automatic process control.

The existing Chinese patent with publication number CN215980912U discloses an electric explosion-proof ball valve, which comprises a valve body, wherein the top end of the valve body is fixedly connected with a valve cover, the top end of the valve cover is provided with a motor, the motor is provided with a valve rod, the valve rod is fixedly connected with a ball body, and the valve rod and the ball body are both rotationally connected with the valve body; the spheroid is equipped with the district that leads to water, and the spheroid lower extreme is equipped with the opening, and the valve body is equipped with the sealing washer, and sliding connection has the piston in the valve body, is equipped with first compression spring in the valve body, and the valve body bottom is equipped with the air vent.

In view of the related art described above, the inventors have found that at least the following problems exist in the art: after long-term use, the elastic force of the first compression spring is reduced due to aging and the like, and the first compression spring cannot be replaced, so that the explosion-proof effect of the valve body is failed.

SUMMERY OF THE UTILITY MODEL

Unable change after descending in order to improve compression spring elasticity, lead to the problem that the explosion-proof effect of valve body became invalid easily, this application provides an electronic explosion-proof ball valve.

The application provides an electronic explosion-proof ball valve adopts following technical scheme:

an electric explosion-proof ball valve comprises a valve body and a valve ball rotatably arranged in the valve body, wherein the top of the valve ball is fixedly connected with a valve rod, the top of the valve body is provided with a shell, and a driving piece for driving the valve rod to rotate is arranged in the shell;

the middle part of the valve ball is provided with a water through hole, the bottom of the valve ball, which is positioned at the water through hole, is provided with a buffer port, the bottom of the valve body is provided with an installation port communicated with the buffer port, the bottom of the installation port is provided with an end cover, a compression spring is fixedly installed on the inner bottom wall of the end cover, the upper end of the compression spring is fixedly connected with a buffer block, and the buffer block is slidably connected in the buffer port;

the valve body is located the inside wall of installing port and is seted up flutedly, the inside of recess is provided with reset spring, reset spring's one end fixedly connected with joint piece, the joint groove with joint piece looks adaptation is all seted up to the both sides of end cover, the joint piece is close to one side fixedly connected with pull rod of reset spring.

By adopting the technical scheme, when the valve ball rotates gradually until the valve body is closed, the pressure of fluid in the valve body can be increased gradually, the fluid can enter the buffer port to extrude the buffer block, so that the buffer block extrudes the compression spring, and the pressure can be buffered by utilizing the elasticity of the compression spring, thereby reducing the burst condition of the valve body; after long-term use, can pull the pull rod and extract the joint piece from the joint inslot, can pull down the end cover to be convenient for change the compression spring in the end cover, reduce the circumstances that leads to the explosion-proof effect of valve body to become invalid because of compression spring elasticity descends

Optionally, the driving element includes a motor fixedly mounted in the housing, a connecting shaft fixedly mounted at an output end of the motor, a master gear fixedly mounted on the connecting shaft, and a slave gear fixedly mounted at an upper end of the valve rod, and the master gear is engaged with the slave gear.

By adopting the technical scheme, the motor can be started to drive the connecting shaft to rotate, so that the connecting shaft drives the main gear to rotate, the main gear drives the driven gear to rotate, and the driven gear drives the valve rod to rotate.

Optionally, one end of the connecting shaft, which is far away from the motor, penetrates through the housing and is fixedly provided with a hand wheel.

Through adopting above-mentioned technical scheme, when the outage, can use the hand wheel to rotate the connecting axle to can carry out the switching to the ball valve when the outage.

Optionally, the inner wall of the valve body is located at the upper side and the lower side of the valve ball and is fixedly connected with a sealing gasket.

Through adopting above-mentioned technical scheme, sealed the sealed effect when sealed pad can improve the valve ball closure.

Optionally, the clamping block is provided with a guide surface facing the lower end of the mounting opening.

Through adopting above-mentioned technical scheme, be convenient for insert the end cover in the installing port from bottom to top through the guide face.

Optionally, a limiting groove is formed in the inner wall of the groove, a limiting block is fixedly connected to one side of the clamping block, and the limiting block is connected to the limiting groove in a sliding mode.

Through adopting above-mentioned technical scheme, through the cooperation of spacing groove and stopper, can play limiting displacement to the joint piece.

Optionally, annular grooves are formed in both end faces of the valve body, and sealing rings are embedded in the annular grooves.

Through adopting above-mentioned technical scheme, can improve the sealed effect of valve body and pipe connection department through the sealing washer.

Optionally, the inside at valve body both ends all fixed mounting have the filter screen.

Through adopting above-mentioned technical scheme, can filter the impurity in the fluid through the filter screen, reduce the impurity that gets into the valve body.

In summary, the present application has the following beneficial effects:

1. according to the anti-explosion valve, the end cover, the reset spring, the clamping block, the clamping groove and the pull rod are arranged, so that the end cover can be detached after long-term use, the compression spring in the end cover can be conveniently replaced, and the situation that the anti-explosion effect of the valve body is invalid due to the reduction of the elasticity of the compression spring is reduced;

2. this application can filter the impurity in the fluid through the setting of filter screen, reduces the impurity that gets into the valve body.

Drawings

Fig. 1 is a schematic view of the overall structure of the present application.

Fig. 2 is a schematic diagram of the internal structure of the present application.

Fig. 3 is an enlarged view of the structure at a in fig. 2 of the present application.

Description of reference numerals:

1. a valve body; 2. a valve ball; 3. a valve stem; 4. a housing; 5. a drive member; 51. a motor; 52. a connecting shaft; 53. a main gear; 54. a slave gear; 55. a hand wheel; 6. a water through hole; 7. a buffer port; 8. an installation port; 9. an end cap; 10. a compression spring; 11. a buffer block; 12. a groove; 13. a return spring; 14. a clamping block; 15. a clamping groove; 16. a pull rod; 17. a gasket; 18. a limiting groove; 19. a limiting block; 20. a seal ring; 21. and (5) filtering by using a filter screen.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

Referring to fig. 1-2, an electric explosion-proof ball valve includes a valve body 1 and a valve ball 2 rotatably installed in the valve body 1, a water through hole 6 is formed in the middle of the valve ball 2, sealing gaskets 17 are fixedly connected to upper and lower sides of the valve ball 2 on the inner wall of the valve body 1, and the sealing gaskets 17 can improve the sealing effect when the valve ball 2 is closed. The top fixedly connected with valve rod 3 of valve ball 2, the top of valve body 1 is provided with casing 4, and the internally mounted of casing 4 has and is used for driving 3 pivoted driving pieces 5 of valve rod, uses 5 steerable valve rods 3 rotations of driving piece, makes valve rod 3 drive valve ball 2 rotate to can carry out the switching to valve body 1.

The driving member 5 includes a motor 51 fixedly mounted in the housing 4, a connecting shaft 52 fixedly mounted at an output end of the motor 51, a master gear 53 fixedly mounted on the connecting shaft 52, and a slave gear 54 fixedly mounted at an upper end of the valve rod 3, wherein the master gear 53 is meshed with the slave gear 54, the motor 51 can be started to drive the connecting shaft 52 to rotate, the connecting shaft 52 drives the master gear 53 to rotate, the master gear 53 drives the slave gear 54 to rotate, and the slave gear 54 drives the valve rod 3 to rotate.

In addition, one end of the connecting shaft 52, which is far away from the motor 51, penetrates through the housing 4 and is fixedly provided with a hand wheel 55, and when the power is off, the hand wheel 55 can be used for rotating the connecting shaft 52, so that the ball valve can be opened and closed when the power is off.

Referring to fig. 2, the two end faces of the valve body 1 are both provided with annular grooves, the sealing rings 20 are embedded in the annular grooves, and the sealing effect of the joint of the valve body 1 and the pipeline can be improved through the sealing rings 20.

Referring to fig. 2, the inside of valve body 1 both ends is all fixed mounting has filter screen 21, can filter the impurity in the fluid through filter screen 21, reduces the impurity that gets into valve body 1.

Referring to fig. 2 and 3, valve ball 2 is located the bottom of limbers 6 and has been seted up buffering mouth 7, buffering mouth 7 cross-section is the centre of a circle, and buffering mouth 7 is located the center of rotation department of valve ball 2, installing port 8 that is linked together with buffering mouth 7 is seted up to the bottom of valve body 1, installing port 8 is unanimous with buffering mouth 7 size, end cover 9 is installed to the bottom of installing port 8, inner diapire fixed mounting of end cover 9 has compression spring 10, compression spring 10's upper end fixedly connected with buffer block 11, buffer block 11 and buffering mouth 7 looks adaptation, buffer block 11 sliding connection is in buffering mouth 7.

When the valve ball 2 rotates gradually and the valve body 1 is closed, the pressure of fluid in the valve body 1 can be increased gradually, the fluid can enter the buffer port 7 to extrude the buffer block 11, the buffer block 11 extrudes the compression spring 10, the elastic force of the compression spring 10 can buffer the pressure, and therefore the situation that the valve body 1 bursts is reduced.

Referring to fig. 2 and 3, the valve body 1 is located the inside wall of installing port 8 and is seted up fluted 12, and the inside of recess 12 is provided with reset spring 13, and reset spring 13's one end fixedly connected with joint piece 14, joint piece 14 are provided with the guide face towards the direction of installing port 8 lower extreme, are convenient for insert the end cover 9 in installing port 8 from bottom to top through the guide face, and the joint groove 15 with 14 looks adaptations of joint piece is all seted up to the both sides of end cover 9. When installing compression spring 10, only need insert end cover 9 in the installing port 8 from bottom to top, when

joint groove

15 and 14 alignment of joint piece, reset spring 13 promotes joint piece 14 and inserts in joint groove 15, can fix end cover 9 to can accomplish compression spring 10's installation

One side fixedly connected with pull rod 16 that joint piece 14 is close to reset spring 13, after long-term the use, can pull rod 16 and extract joint piece 14 from joint groove 15, can dismantle end cover 9 to be convenient for change compression spring 10 in the end cover 9, reduce the circumstances that leads to the explosion-proof effect of valve body 1 to become invalid because of compression spring 10 elasticity descends.

Wherein, the inner wall of recess 12 has seted up spacing groove 18, and one side fixedly connected with stopper 19 of joint piece 14, stopper 19 sliding connection can play limiting displacement to joint piece 14 through the cooperation of spacing groove 18 with stopper 19 in spacing groove 18.

The application has the implementation principle that: after long-term use, can pull rod 16 and extract joint piece 14 from joint groove 15 in, can dismantle end cover 9 to be convenient for change compression spring 10 in the end cover 9, reduce the circumstances that leads to the explosion-proof effect of valve body 1 to lose efficacy because of compression spring 10 elasticity descends.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an electronic explosion-proof ball valve, includes valve body (1) and rotates valve ball (2) of installing in valve body (1), its characterized in that: the top of the valve ball (2) is fixedly connected with a valve rod (3), the top of the valve body (1) is provided with a shell (4), and a driving piece (5) for driving the valve rod (3) to rotate is installed inside the shell (4);

the middle of the valve ball (2) is provided with a water through hole (6), the bottom of the valve ball (2) positioned at the water through hole (6) is provided with a buffer port (7), the bottom of the valve body (1) is provided with an installation port (8) communicated with the buffer port (7), the bottom of the installation port (8) is provided with an end cover (9), the inner bottom wall of the end cover (9) is fixedly provided with a compression spring (10), the upper end of the compression spring (10) is fixedly connected with a buffer block (11), and the buffer block (11) is connected in the buffer port (7) in a sliding manner;

the valve body (1) is located the inside wall of installing port (8) and is seted up flutedly (12), the inside of recess (12) is provided with reset spring (13), the one end fixedly connected with joint piece (14) of reset spring (13), joint groove (15) with joint piece (14) looks adaptation are all seted up to the both sides of end cover (9), one side fixedly connected with pull rod (16) that joint piece (14) are close to reset spring (13).

2. An electrically operated explosion-proof ball valve according to claim 1, wherein: the driving piece (5) comprises a motor (51) fixedly installed in the shell (4), a connecting shaft (52) fixedly installed at the output end of the motor (51), a main gear (53) fixedly installed on the connecting shaft (52) and a driven gear (54) fixedly installed at the upper end of the valve rod (3), and the main gear (53) is meshed with the driven gear (54).

3. An electric explosion-proof ball valve according to claim 2, wherein: one end, far away from the motor (51), of the connecting shaft (52) penetrates through the shell (4) and is fixedly provided with a hand wheel (55).

4. An electric explosion-proof ball valve according to claim 1, wherein: the inner wall of the valve body (1) is located on the upper side and the lower side of the valve ball (2) and is fixedly connected with sealing gaskets (17).

5. An electric explosion-proof ball valve according to claim 1, wherein: the clamping block (14) is provided with a guide surface towards the lower end of the mounting opening (8).

6. An electrically operated explosion-proof ball valve according to claim 1, wherein: spacing groove (18) have been seted up to the inner wall of recess (12), one side fixedly connected with stopper (19) of joint piece (14), stopper (19) sliding connection is in spacing groove (18).

7. An electric explosion-proof ball valve according to claim 1, wherein: annular grooves are formed in two end faces of the valve body (1), and sealing rings (20) are embedded into the annular grooves.

8. An electric explosion-proof ball valve according to claim 1, wherein: the inside at valve body (1) both ends all fixed mounting have filter screen (21).