CN216200545U

CN216200545U - Novel combined pneumatic regulating valve

Info

Publication number: CN216200545U
Application number: CN202122498997.6U
Authority: CN
Inventors: 颜桂春
Original assignee: Megney Fluid Control China Co ltd
Current assignee: Megney Fluid Control China Co ltd
Priority date: 2021-10-18
Filing date: 2021-10-18
Publication date: 2022-04-05
Anticipated expiration: 2031-10-18

Abstract

The utility model discloses a novel combined pneumatic regulating valve, which comprises a valve body, a lower valve cover and an upper valve cover, wherein the bottom of the valve body is fixedly provided with the lower valve cover, the top of the valve body is fixedly provided with the upper valve cover, the top of the upper valve cover is fixedly provided with a top seat, the top of the top seat is fixedly provided with a connecting cylinder, the top of the connecting cylinder is fixedly provided with a regulating cylinder, the inside of the regulating cylinder is rotatably connected with a rotating rod through a bearing seat, the inside of the rotating rod is in threaded connection with a threaded part of a lifting rod, the periphery of the lifting rod is fixedly provided with symmetrically arranged limiting strips, and the top of the upper valve cover is provided with limiting grooves matched with the limiting strips; a limiting rod is fixedly arranged inside the lower valve cover, and a spiral spring is fixedly sleeved on the periphery of the limiting rod. The valve body can be closed when the pneumatic actuator fails, water resource waste is avoided, and the valve body can be used when the pneumatic actuator fails.

Description

Novel combined pneumatic regulating valve

Technical Field

The utility model relates to the technical field of regulating valves, in particular to a novel combined pneumatic regulating valve.

Background

The pneumatic control valve uses compressed gas as a power source, uses a cylinder as an actuator, drives a valve by means of accessories such as a valve positioner, a converter, an electromagnetic valve, a position-retaining valve, a gas storage tank, a gas filter and the like, realizes switching value or proportional regulation, and receives a control signal of an industrial automatic control system to complete the regulation of a pipeline medium: flow, pressure, temperature, liquid level, etc. The pneumatic regulating valve has the characteristics of simple control, quick response and intrinsic safety, and no additional explosion-proof measures are needed.

Application number CN202021420670.6 discloses a modular governing valve, which comprises a valve body, the water inlet has been seted up to valve body one side, the delivery port has been seted up to the valve body opposite side, water inlet upper end both sides have all set firmly the supporting shoe, logical groove has all been seted up on two supporting shoes, be equipped with the piston between two supporting shoes, the inside recess that has seted up of water inlet, the piston bottom is located inside the recess, the piston up end has set firmly the push rod, be equipped with spring I on the push rod, the valve body inner wall has set firmly the fixed disk, spring I both ends are fixed connection with valve body and fixed disk respectively, the piston both sides have all set firmly the slider, the spout has all been seted up to two supporting shoe one end below, the slider is located inside the spout, two spout inner wall tops have all set firmly spring II, two spring II are fixed connection with two sliders respectively, two slider bottoms all are located the water inlet. The utility model pushes the slide block upwards by the pressure of the fluid, and the slide block drives the piston to move upwards, so that the fluid flows out of the groove.

A combined regulating valve of the above-mentioned technique has the following drawbacks: the pipeline can not be closed when the valve body breaks down, and more water resources are wasted when the maintainer finds the fault.

To this end, we propose a new combined pneumatic control valve.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a novel combined pneumatic regulating valve which can effectively solve the problems in the background technology.

In order to achieve the purpose, the utility model adopts the technical scheme that:

a novel combined pneumatic regulating valve comprises a valve body, a lower valve cover and an upper valve cover, wherein the bottom of the valve body is fixedly provided with the lower valve cover, the top of the valve body is fixedly provided with the upper valve cover, the top of the upper valve cover is fixedly provided with a top seat, the top of the top seat is fixedly provided with a connecting cylinder, the top of the connecting cylinder is fixedly provided with an adjusting cylinder, the inside of the adjusting cylinder is rotatably connected with a rotating rod through a bearing seat, the inside of the rotating rod is in threaded connection with a threaded part of a lifting rod, symmetrically arranged limiting strips are fixedly arranged on the periphery of the lifting rod, and a limiting groove matched with the limiting strips is formed in the top of the upper valve cover;

the inner installation of lower valve gap is fixed with the gag lever post, the periphery of gag lever post cup joints and is fixed with coil spring, coil spring's top butt has the case of connecting through the connecting rod, the bottom of case is constructed has the cylinder groove with the gag lever post adaptation, the top installation of case is fixed with the roof, the top of roof and the bottom butt of lifter.

Furthermore, the pneumatic actuator symmetrically arranged relative to the top seat is fixedly installed at the top of the upper valve cover, the telescopic part of the pneumatic actuator penetrates through the upper valve cover and is abutted against the top plate, and when the pneumatic actuator extends downwards, the top plate can be pressed downwards to drive the valve core to move downwards.

Furthermore, the top end installation of dwang is fixed with the rolling disc, is convenient for manually drive the dwang and rotates.

Furthermore, a sealing gasket is arranged between the connecting cylinder and the top seat, so that the sealing effect between the connecting cylinder and the top seat is improved.

Compared with the prior art, the utility model has the following beneficial effects: through the arrangement of the limiting rod, the spiral spring and the valve core, when the pneumatic actuator fails, the valve core can be jacked up under the action of the spiral spring, so that the valve body is closed, and more water resources are prevented from being wasted during failure; through dwang, lifter, spacing and the rolling disc that sets up, the manual drive rolling disc rotates, and the dwang rotates along with the rolling disc, and the dwang rotates with the screw thread portion of lifter relatively for the vertical downstream of lifter, thereby push up the roof downwards, make case downstream, the valve body is in the open mode, avoids the unable use of valve body when pneumatic actuator is out of order.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a novel combined pneumatic control valve according to the present invention.

Fig. 2 is a sectional view of a novel combined pneumatic control valve of the present invention.

Fig. 3 is an enlarged view of the structure at a in fig. 2 of the novel combined pneumatic control valve of the present invention.

In the figure: 1. a valve body; 2. a lower valve cover; 3. a limiting rod; 4. a coil spring; 5. a valve core; 6. a connecting rod; 7. an upper valve cover; 8. a top seat; 9. a connecting cylinder; 10. an adjusting cylinder; 11. Rotating the rod; 12. rotating the disc; 13. a lifting rod; 14. a limiting strip; 15. a top plate; 16. And a pneumatic actuator.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

As shown in fig. 1-3, a novel combined pneumatic control valve comprises a valve body 1, a lower valve cover 2 and an upper valve cover 7, wherein the lower valve cover 2 is fixedly installed at the bottom of the valve body 1, the upper valve cover 7 is fixedly installed at the top of the valve body 1, a top seat 8 is fixedly installed at the top of the upper valve cover 7, a connecting cylinder 9 is fixedly installed at the top of the top seat 8, an adjusting cylinder 10 is fixedly installed at the top of the connecting cylinder 9, a rotating rod 11 is rotatably connected inside the adjusting cylinder 10 through a bearing seat, a threaded portion of a lifting rod 13 is connected to the rotating rod 11 through a thread, symmetrically arranged limiting strips 14 are fixedly installed on the periphery of the lifting rod 13, and limiting grooves matched with the limiting strips 14 are formed at the top of the upper valve cover 7;

the internal installation of lower valve gap 2 is fixed with gag lever post 3, the periphery of gag lever post 3 cup joints and is fixed with coil spring 4, the top butt of coil spring 4 has case 5 of connecting through connecting rod 6, the bottom of case 5 is constructed has the cylinder groove with gag lever post 3 adaptation, the top installation of case 5 is fixed with roof 15, the top of roof 15 and the bottom butt of lifter 13.

The pneumatic actuator 16 symmetrically arranged relative to the top seat 8 is fixedly installed at the top of the upper valve cover 7, the telescopic part of the pneumatic actuator 16 penetrates through the upper valve cover 7 and abuts against the top plate 15, and when the pneumatic actuator 16 extends downwards, the top plate 15 can be pressed downwards to drive the valve core 5 to move downwards.

Wherein, the top installation of dwang 11 is fixed with rolling disc 12, is convenient for manually drive dwang 11 to rotate.

Wherein, be provided with sealed the pad between connecting cylinder 9 and the footstock 8, improve the sealed effect between connecting cylinder 9 and the footstock 8.

When the pneumatic actuator 16 fails, the valve core 5 is jacked upwards under the action of the coil spring 4 to close the inside of the valve body 1, the rotating disc 12 can be manually rotated at the same time, the rotating disc 12 drives the rotating rod 11 to rotate, the rotating rod 11 and the threaded part at the top of the lifting rod 13 rotate relatively, the lifting rod 13 moves downwards to jack the top plate 15, the valve core 5 is driven to move downwards, and therefore the valve body 1 is adjusted to be in an open state.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A novel combined pneumatic regulating valve comprises a valve body (1), and is characterized by also comprising a lower valve cover (2) and an upper valve cover (7), a lower valve cover (2) is fixedly arranged at the bottom of the valve body (1), an upper valve cover (7) is fixedly arranged at the top of the valve body (1), a top seat (8) is fixedly arranged at the top of the upper valve cover (7), a connecting cylinder (9) is fixedly arranged at the top of the top seat (8), an adjusting cylinder (10) is fixedly arranged at the top of the connecting cylinder (9), the inside of the adjusting cylinder (10) is rotatably connected with a rotating rod (11) through a bearing seat, the internal thread of the rotating rod (11) is connected with a thread part of a lifting rod (13), the periphery of the lifting rod (13) is provided with symmetrically arranged limit strips (14), the top of the upper valve cover (7) is provided with a limit groove matched with the limit strip (14);

the internal installation of lower valve gap (2) is fixed with gag lever post (3), the periphery of gag lever post (3) cup joints and is fixed with coil spring (4), the top butt of coil spring (4) has case (5) of connecting through connecting rod (6) to connect, the bottom of case (5) is constructed the cylinder groove with gag lever post (3) adaptation, the top installation of case (5) is fixed with roof (15), the top of roof (15) and the bottom butt of lifter (13).

2. The new combined pneumatic regulating valve according to claim 1, characterized in that: pneumatic actuators (16) symmetrically arranged relative to the top seat (8) are fixedly installed at the top of the upper valve cover (7), and telescopic parts of the pneumatic actuators (16) penetrate through the upper valve cover (7) and are abutted to the top plate (15).

3. The new combined pneumatic regulating valve according to claim 1, characterized in that: and a rotating disc (12) is fixedly arranged at the top end of the rotating rod (11).

4. The new combined pneumatic regulating valve according to claim 1, characterized in that: and a sealing gasket is arranged between the connecting cylinder (9) and the top seat (8).