CN212004536U

CN212004536U - Governing valve with buffer function

Info

Publication number: CN212004536U
Application number: CN202020662151.4U
Authority: CN
Inventors: 叶汉珍
Original assignee: Fuzhou General Electric Power Technology Co ltd
Current assignee: Fuzhou General Electric Power Technology Co ltd
Priority date: 2020-04-27
Filing date: 2020-04-27
Publication date: 2020-11-24
Anticipated expiration: 2030-04-27

Abstract

The utility model discloses a regulating valve with buffering function, including the valve casing, the inside wall sliding connection of valve casing has the case, the inside wall of case is seted up flutedly, the inside of recess is seted up the constant head tank, the internally mounted of recess has the guide ring, the lateral wall welding of guide ring has the reference column, the reference column is installed in the inside of constant head tank, the inner circle sliding connection of guide ring has the lead screw, the lateral wall cover of lead screw is equipped with first spring, the bottom of first spring welds in the top of guide ring, the lateral wall threaded connection of lead screw has the holding ring; when the utility model discloses a during the governing valve left side got into great hydraulic liquid, a great impact force was applyed to the case to liquid, and case and direction ring extrude first spring to last for the case upwards removes, thereby exposes tertiary water guide hole, and liquid is dredged in tertiary water guide hole, thereby reduces the water pressure of liquid, thereby protects the case, protects the governing valve.

Description

Governing valve with buffer function

Technical Field

The utility model relates to a governing valve technical field specifically is a governing valve with buffer function.

Background

The regulating valve is also called a control valve, and in the field of industrial automation process control, the final control element for changing the process parameters of medium flow, pressure, temperature, liquid level and the like by power operation through receiving the control signal output by a regulating control unit. Generally consisting of an actuator and a valve.

Chinese patent No. CN209213038U discloses a balanced type multi-stage regulating valve, which comprises a valve body, the inside of valve body is equipped with the rectangle cavity, the inside fixed mounting of rectangle cavity has first baffle, the surface of first baffle is equipped with first round hole, the inside fixed mounting of rectangle cavity has the second baffle, the surface of second baffle is equipped with the second round hole, the inside fixed mounting of second round hole has first sealing ring, the inside slidable mounting of first sealing ring has the bracing piece, the terminal fixed mounting of bracing piece has the third baffle, sliding connection between third baffle and the first baffle, sliding connection between third baffle and the rectangle cavity inner wall. This balanced type multi-stage regulating valve, the accessible rotates opening of first round hole of threaded rod control, make the rivers get into, under the control of third baffle, adjust the size of rivers, and the filter screen can carry out impurity filtering to rivers, ring baffle convenient to detach, can wash the filter screen, however, when first round hole was plugged up to its third baffle, when the governing valve left side got into the great liquid of water pressure, can apply a great impact force to the third baffle, can cause the damage of governing valve even, for this, provide a governing valve with buffer function.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a governing valve with buffer function to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a governing valve with buffer function, includes the valve casing, the inside wall sliding connection of valve casing has the case, the inside wall of case is seted up flutedly, the constant head tank has been seted up to the inside of recess, the internally mounted of recess has the guide ring, the lateral wall welding of guide ring has the reference column, the reference column is installed in the inside of constant head tank, the inner circle sliding connection of guide ring has the lead screw, the lateral wall cover of lead screw is equipped with first spring, the bottom of first spring welds in the top of guide ring, the lateral wall threaded connection of lead screw has the holding ring, the lateral wall fixedly connected with projection of holding ring, the spout has been seted up to the inside wall of valve casing, projection sliding connection is in.

As further preferable in the present technical solution: the inside wall fixedly connected with sealing ring of valve casing, the top of sealing ring matches with the bottom of case.

As further preferable in the present technical solution: the welding of the top of valve casing has the mount, the top of lead screw runs through the inboard that valve casing and mount extended to the mount in proper order, the top threaded connection of lead screw has the connecting rod, one side of mount is rotated and is connected with the bull stick, the lateral wall welding of connecting rod has the traveller, bull stick and traveller sliding connection.

As further preferable in the present technical solution: the top welding of mount has first casing, bolt fixedly connected with second casing is passed through at the top of first casing, mount and first casing are run through in proper order to the top of connecting rod, the top welding of connecting rod has even the board, the top fixedly connected with second spring of even board, the top of second spring welds in the inside wall of second casing.

As further preferable in the present technical solution: and a filter screen is arranged on the outer side wall of the first shell.

As further preferable in the present technical solution: the valve casing is close to the inside wall fixedly connected with water guide plate of delivery port, one side of water guide plate has seted up one-level water guide hole, second grade water guide hole and tertiary water guide hole in proper order.

Compared with the prior art, the beneficial effects of the utility model are that: when the utility model discloses a during the governing valve left side got into great hydraulic liquid, a great impact force was applyed to the case to liquid, and case and direction ring extrude first spring to last for the case upwards removes, thereby exposes tertiary water guide hole, and liquid is dredged in tertiary water guide hole, thereby reduces the water pressure of liquid, thereby protects the case, protects the governing valve.

Drawings

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

FIG. 2 is an enlarged schematic view of the area A of FIG. 1 according to the present invention;

fig. 3 is a schematic top view of the positioning ring of the present invention.

In the figure: 1. a valve housing; 2. a chute; 3. a convex column; 4. a positioning ring; 5. a screw rod; 6. a first spring; 7. a valve core; 8. a guide ring; 9. a positioning column; 10. positioning a groove; 11. a groove; 12. a water guide plate; 13. a primary water guide hole; 14. a secondary water guide hole; 15. a third-level water guide hole; 16. a fixed mount; 17. a rotating rod; 18. a connecting rod; 19. connecting plates; 20. a first housing; 21. a second housing; 22. a second spring; 23. filtering with a screen; 24. a seal ring; 25. a slide column.

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.

Examples

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a governing valve with buffer function, including valve casing 1, valve casing 1's inside wall sliding connection has case 7, recess 11 has been seted up to case 7's inside wall, constant head tank 10 has been seted up to recess 11's inside, recess 11's internally mounted has guide ring 8, the lateral wall welding of guide ring 8 has reference column 9, reference column 9 is installed in the inside of constant head tank 10, the inner circle sliding connection of guide ring 8 has lead screw 5, the lateral wall cover of lead screw 5 is equipped with first spring 6, the bottom of first spring 6 welds in the top of guide ring 8, the lateral wall threaded connection of lead screw 5 has holding ring 4, the lateral wall fixedly connected with projection 3 of holding ring 4, spout 2 has been seted up to valve casing 1's inside wall, 3 sliding.

In this embodiment, specifically: the inside wall fixedly connected with sealing ring 24 of valve casing 1, the top of sealing ring 24 matches with the bottom of case 7, and sealing ring 24 mutually supports with case 7, ends the liquid flow direction.

In this embodiment, specifically: the top welding of valve casing 1 has mount 16, and the top of lead screw 5 runs through valve casing 1 and mount 16 in proper order and extends to the inboard of mount 16, and the top threaded connection of lead screw 5 has connecting rod 18, and one side of mount 16 is rotated and is connected with bull stick 17, and the lateral wall welding of connecting rod 18 has traveller 25, bull stick 17 and traveller 25 sliding connection, the rotational position of controller control bull stick 17 to the position of control connecting rod 18 and lead screw 5.

In this embodiment, specifically: the welding of mount 16's top has first casing 20, bolt fixedly connected with second casing 21 is passed through at the top of first casing 20, mount 16 and first casing 20 are run through in proper order to the top of connecting rod 18, the welding of connecting rod 18's top has even board 19, even board 19's top fixedly connected with second spring 22, the top of second spring 22 welds in the inside wall of second casing 21, bull stick 17 rotates, it reciprocates to drive connecting rod 18 through traveller 25, extrude second spring 22, second spring 22 applies a decurrent effort.

In this embodiment, specifically: the outer side wall of the first housing 20 is mounted with a screen 23, and the screen 23 is used to prevent dust in the air from entering between the second housing 21 and the first housing 20.

In this embodiment, specifically: the inner side wall of the valve shell 1 close to the water outlet is fixedly connected with a water guide plate 12, one side of the water guide plate 12 is sequentially provided with a first-level water guide hole 13, a second-level water guide hole 14 and a third-level water guide hole 15, and when the valve core 7 is located at different positions, the first-level water guide hole 13, the second-level water guide hole 14 and the third-level water guide hole 15 are respectively exposed, so that the grading adjustment of the adjusting valve is realized.

Working principle or structural principle, in use, when the left side of the regulating valve of the utility model enters into the liquid with larger water pressure, the liquid applies a larger impact force to the valve core 7, the valve core 7 and the guide ring 8 upwards extrude the first spring 6, so that the valve core 7 moves upwards, thereby exposing the tertiary water guide hole 15, the tertiary water guide hole 15 dredges the liquid, thereby reducing the water pressure of the liquid, thereby protecting the valve core 7, and protecting the regulating valve, when the regulating valve is used, the controller controls the rotation of the rotating rod 17, thereby driving the connecting rod 18 to move upwards through the sliding column 25, the connecting rod 18 drives the valve core 7 to move upwards through the screw rod 5, thereby exposing the tertiary water guide hole 15, the secondary water guide hole 14 and the primary water guide hole 13 in grades, realizing the effect of grading regulation, meanwhile, when the device is installed, the screw rod 5 can be rotated, the position of the positioning ring 4 is adjusted, thereby adjusting the degree of, and adjusting the water pressure threshold value.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that 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. A governing valve with buffer function, includes valve casing (1), its characterized in that: the inner side wall of the valve shell (1) is connected with a valve core (7) in a sliding mode, a groove (11) is formed in the inner side wall of the valve core (7), a positioning groove (10) is formed in the groove (11), a guide ring (8) is installed in the groove (11), a positioning column (9) is welded on the outer side wall of the guide ring (8), the positioning column (9) is installed in the positioning groove (10), a lead screw (5) is connected to the inner ring of the guide ring (8) in a sliding mode, a first spring (6) is sleeved on the outer side wall of the lead screw (5), the bottom end of the first spring (6) is welded to the top of the guide ring (8), a positioning ring (4) is connected to the outer side wall of the lead screw (5) in a threaded mode, a convex column (3) is fixedly connected to the outer side wall, the convex column (3) is connected to the inside of the sliding groove (2) in a sliding manner.

2. The damper valve with a damping function according to claim 1, wherein: the inside wall fixedly connected with sealing ring (24) of valve casing (1), the top of sealing ring (24) matches with the bottom of case (7).

3. The damper valve with a damping function according to claim 1, wherein: the top welding of valve casing (1) has mount (16), the top of lead screw (5) runs through valve casing (1) and mount (16) in proper order and extends to the inboard of mount (16), the top threaded connection of lead screw (5) has connecting rod (18), one side of mount (16) is rotated and is connected with bull stick (17), the lateral wall welding of connecting rod (18) has traveller (25), bull stick (17) and traveller (25) sliding connection.

4. A damper valve with a damping function according to claim 3, wherein: the top welding of mount (16) has first casing (20), bolt fixedly connected with second casing (21) is passed through at the top of first casing (20), mount (16) and first casing (20) are run through in proper order to the top of connecting rod (18), the top welding of connecting rod (18) has even board (19), the top fixedly connected with second spring (22) of even board (19), the top of second spring (22) welds in the inside wall of second casing (21).

5. The damper valve with a damping function according to claim 4, wherein: and a filter screen (23) is arranged on the outer side wall of the first shell (20).

6. The damper valve with a damping function according to claim 1, wherein: the water outlet valve is characterized in that a water guide plate (12) is fixedly connected to the inner side wall, close to the water outlet, of the valve casing (1), and a first-level water guide hole (13), a second-level water guide hole (14) and a third-level water guide hole (15) are sequentially formed in one side of the water guide plate (12).