Multi-stage depressurization regulating valve convenient to maintain

Abstract

The utility model discloses a multistage depressurization regulating valve convenient to maintain, which comprises a valve body, a valve cover and an executing mechanism, a regulating valve rod is movably arranged in the valve body, the upper end of the regulating valve rod extends into the executing mechanism, the valve cover is fixedly arranged on the upper surface of the valve body, and the valve cover is fixedly arranged on the upper surface of the valve body. Supporting rods are movably installed on the surfaces of the two sides of the valve deck, positioning blocks are movably embedded in the rear surfaces of the upper ends of the supporting rods, inserting openings are formed in the upper ends of the supporting rods, push-pull grooves are formed in the surfaces of the two sides in the inserting openings, guide rods are fixedly installed in the push-pull grooves, and springs are arranged on the surfaces of the guide rods in a sleeving mode. According to the multi-stage pressure reduction regulating valve convenient to maintain, when the bottom of the regulating valve rod and the bottom of the executing mechanism need to be checked and maintained, the positioning block is pulled, the rear end of the positioning block is pulled out of the inserting groove of the executing mechanism, then the supporting rod can be turned over, and therefore a larger overhauling space can be provided.

Description

TECHNICAL FIELD

[0001] The utility model relates to multistage pressure reducing regulating valve, especially to a multistage pressure reducing regulating valve convenient to maintain. BACKGROUND

[0002] Multistage pressure reducing regulating valve is a kind of valve specially designed for handling high pressure difference fluid control, by its unique design, can effectively reduce the pressure difference of fluid flowing through valve, thereby reducing the occurrence of flash evaporation, cavitation and other phenomena, prolong the service life of valve, improve the stability of system.

[0003] However, the multistage pressure reducing regulating valve of present stage has some deficiencies, multistage pressure reducing regulating valve is controlled regulating valve stem by actuating mechanism when running, and actuating mechanism is fixed on support frame, but regulating valve stem is through support frame, so when the bottom of actuating mechanism and regulating valve stem inside support frame need to be maintained and checked, since the end of some fasteners is aligned with support frame, so the dismounting tool can only swing up and down when dismounting fastener, so that it is not convenient when overhauling. UTILITY MODEL CONTENTS

[0004] The utility model discloses a multistage pressure reducing regulating valve convenient to maintain can effectively solve the problem in the background art.

[0005] To achieve the above object, the technical scheme adopted by the utility model is:

[0006] A multistage pressure reducing regulating valve convenient to maintain, including valve body, valve cover and actuating mechanism, the inside movable mounting of valve body has regulating valve stem, the upper end of regulating valve stem extends in the inside of actuating mechanism through valve cover, the upper surface of valve body is fixedly installed with valve cover, the both sides surface of valve cover is movably installed with support rod, the upper end rear surface of support rod movably embeds with positioning block.

[0007] Further preferably, the upper end inside of support rod is provided with a socket, the inside both sides surface of socket is provided with a push-pull slot, the inside of push-pull slot is fixedly installed with a guide rod, the surface of guide rod is provided with a spring, the lower end of support rod is fixedly installed with a turnover shaft.

[0008] Further preferably, the front end upper surface of positioning block is provided with a handle slot, the both sides surface of positioning block is fixedly installed with a sleeve block.

[0009] Further preferably, the upper end both sides surface of valve cover and close to front and rear is fixedly installed with a shaft sleeve, the movable installation of turnover shaft is between shaft sleeve, support rod is movably connected with valve cover through turnover shaft.

[0010] More preferably, slots are provided on both sides of the actuator and near the bottom, the positioning block is movably embedded in the slot, and the sleeve is sleeved on the surface of the guide rod.

[0011] More preferably, the rear end of the positioning block is embedded in the slot, one end of the spring is fixed to the sleeve block, and the other end of the spring is fixed to the inner surface of the push-pull groove.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In this invention, by setting up a valve cover, support rod, positioning block and actuator to cooperate with each other, when it is necessary to inspect and maintain the bottom of the regulating valve rod and actuator, the positioning block is pulled so that the rear end of the positioning block is pulled out of the slot of the actuator, and then the support rod can be flipped over. This provides a larger maintenance space and facilitates maintenance. Attached Figure Description

[0014] Figure 1 This is an overall structural diagram of a multi-stage pressure reducing regulating valve that is easy to maintain according to this utility model;

[0015] Figure 2 This is a partial cross-sectional view of the support rod of a multi-stage pressure reducing regulating valve that is easy to maintain according to this utility model;

[0016] Figure 3 This is a structural diagram of the positioning block of a multi-stage pressure reducing regulating valve that is easy to maintain according to this utility model;

[0017] Figure 4 This is a partial disassembly diagram of a multi-stage pressure reducing regulating valve that is easy to maintain, according to this utility model.

[0018] In the diagram: 1. Valve body; 2. Valve cover; 201. Bushing; 3. Support rod; 301. Flip shaft; 302. Socket; 303. Push-pull groove; 304. Guide rod; 305. Spring; 4. Positioning block; 401. Handle groove; 402. Sleeve block; 5. Actuator; 501. Slot; 6. Adjusting valve stem. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] like Figures 1-4The diagram shows a multi-stage pressure reducing regulating valve that is easy to maintain, comprising a valve body 1, a valve cover 2, and an actuator 5. A regulating valve stem 6 is movably installed inside the valve body 1. The upper end of the regulating valve stem 6 passes through the valve cover 2 and extends into the interior of the actuator 5. The valve cover 2 is fixedly installed on the upper surface of the valve body 1. Support rods 3 are movably installed on both sides of the valve cover 2. A positioning block 4 is movably embedded in the upper rear surface of the support rod 3. The cooperation between the positioning block 4 and the slot 501 can limit the support rod 3, thereby allowing the support rod 3 to support the actuator 5.

[0021] Furthermore, the upper end of the support rod 3 has an insertion port 302, and the inner two sides of the insertion port 302 have push-pull grooves 303. A guide rod 304 is fixedly installed inside the push-pull grooves 303, and a spring 305 is sleeved on the surface of the guide rod 304. A flip shaft 301 is fixedly installed at the lower end of the support rod 3. The spring 305 has a pushing force on the sleeve block 402 close to the slot 501, so that the rear end of the positioning block 4 can be kept inserted into the slot 501.

[0022] Furthermore, a handle groove 401 is provided on the upper surface of the front end of the positioning block 4, and sleeve blocks 402 are fixedly installed on both sides of the positioning block 4; the positioning block 4 can be conveniently pulled by using the handle groove 401.

[0023] Furthermore, bushings 201 are fixedly installed on both sides of the upper end of the valve cover 2, near the front and rear. The rotating shaft 301 is movably installed between the bushings 201, and the support rod 3 is movably connected to the valve cover 2 through the rotating shaft 301.

[0024] Furthermore, slots 501 are provided on both sides of the actuator 5 near the bottom, the positioning block 4 is movably embedded in the insertion port 302, and the sleeve block 402 is sleeved on the surface of the guide rod 304.

[0025] Furthermore, the rear end of the positioning block 4 is embedded in the slot 501, one end of the spring 305 is fixed to the sleeve block 402, and the other end of the spring 305 is fixed to the inner surface of the push-pull groove 303.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-stage pressure reducing regulating valve that is easy to maintain, characterized in that: The device includes a valve body (1), a valve cover (2), and an actuator (5). A regulating valve rod (6) is movably installed inside the valve body (1). The upper end of the regulating valve rod (6) extends through the valve cover (2) into the interior of the actuator (5). The valve cover (2) is fixedly installed on the upper surface of the valve body (1). Support rods (3) are movably installed on both sides of the valve cover (2). A positioning block (4) is movably embedded on the upper rear surface of the support rod (3).

2. The multi-stage pressure reducing regulating valve for easy maintenance according to claim 1, characterized in that: The upper end of the support rod (3) has an inlet (302) inside, and push-pull grooves (303) are provided on both sides of the inlet (302). A guide rod (304) is fixedly installed inside the push-pull groove (303), and a spring (305) is sleeved on the surface of the guide rod (304). A flip shaft (301) is fixedly installed at the lower end of the support rod (3).

3. The multi-stage pressure reducing regulating valve for easy maintenance according to claim 2, characterized in that: The upper front surface of the positioning block (4) is provided with a handle groove (401), and the two side surfaces of the positioning block (4) are fixedly installed with sleeve blocks (402).

4. The multi-stage pressure reducing regulating valve for easy maintenance according to claim 3, characterized in that: The upper two sides of the valve cover (2) are fixedly installed with bushings (201) near the front and rear. The rotating shaft (301) is movably installed between the bushings (201). The support rod (3) is movably connected to the valve cover (2) through the rotating shaft (301).

5. A multi-stage pressure reducing regulating valve for easy maintenance according to claim 4, characterized in that: The actuator (5) has slots (501) on both sides and near the bottom, the positioning block (4) is movably embedded in the socket (302), and the sleeve block (402) is sleeved on the surface of the guide rod (304).

6. The multi-stage pressure reducing regulating valve for easy maintenance according to claim 5, characterized in that: The rear end of the positioning block (4) is embedded in the slot (501), one end of the spring (305) is fixed to the sleeve block (402), and the other end of the spring (305) is fixed to the inner surface of the push-pull groove (303).

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