CN110645406A

CN110645406A - Pressure reducing valve

Info

Publication number: CN110645406A
Application number: CN201910906428.5A
Authority: CN
Inventors: 不公告发明人
Original assignee: 朱金强
Current assignee: Anhui Yujie Hydraulic Machinery Co.,Ltd.
Priority date: 2019-09-24
Filing date: 2019-09-24
Publication date: 2020-01-03
Anticipated expiration: 2039-09-24
Also published as: CN110645406B

Abstract

The invention belongs to the technical field of hydraulic valves, and particularly relates to a pressure reducing valve which comprises a body; the body is divided into an upper cavity and a lower cavity; an adjusting handle, a concave copper sheet, a first spring and a diaphragm are sequentially arranged in the upper cavity from top to bottom; the lower cavity is provided with a bubble breaking unit, and an oil outlet cavity is formed between the bubble breaking unit and the diaphragm; the bubble breaking unit comprises a valve core, a first cavity, a second spring, a filter screen and a rotating wheel; the upper end of the valve core is fixedly connected to the diaphragm, and the lower end of the valve core extends into the first cavity; a swinging block is arranged on the side wall of the first cavity, the swinging block is connected to the side wall of the first cavity through a third spring, and a first rope is led out from the swinging block and penetrates through the side wall of the first cavity to be connected with a rotating wheel arranged near the lower end of the first cavity; the upper end of the second spring is fixedly connected with the lower end face of the valve core, and the lower end of the second spring is fixedly connected with the filter screen; the edge of the filter screen is fixedly connected with the cavity opening of the first cavity; a rope is pulled through the rotation of the rotating wheel, the rope drives the swinging block to swing, and the bubbles in the viscous fluid flowing through the body are broken.

Description

Pressure reducing valve

Technical Field

The invention belongs to the technical field of hydraulic valves, and particularly relates to a pressure reducing valve.

Background

The pressure reducing valve is a valve which reduces the inlet pressure to a certain required outlet pressure through regulation and leads the outlet pressure to be automatically kept stable by relying on the energy of the medium. From the viewpoint of hydrodynamics, the pressure reducing valve is a throttling element with changeable local resistance, namely, the flow speed and the kinetic energy of fluid are changed by changing the throttling area to cause different pressure losses, thereby achieving the purpose of pressure reduction; then, the fluctuation of the pressure behind the valve is balanced with the spring force by means of the regulation of the control and regulation system, so that the pressure behind the valve is kept constant within a certain error range.

When thick liquid flows through the traditional pressure reducing valve, air bubbles are easily generated due to the thick liquid, the air bubbles can block the pressure reducing valve, so that the liquid cannot smoothly flow, in addition, the air bubbles are mixed in the liquid of the pressure reducing valve, and the air in the air bubbles is the main reason for generating system vibration and noise.

Disclosure of Invention

The invention provides a pressure reducing valve, aiming at making up the defects of the prior art and solving the problem that air bubbles in liquid in the pressure reducing valve block the pressure reducing valve when the liquid flows through the pressure reducing valve.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a pressure reducing valve, which comprises a body; the body is divided into an upper cavity and a lower cavity; an adjusting handle, a concave copper sheet, a first spring and a diaphragm are sequentially arranged in the upper cavity from top to bottom; the adjusting handle is connected to the upper end part of the upper cavity through threads; the edge of the concave copper sheet is fixedly connected to the inner wall of the upper cavity, and the concave part of the concave copper sheet is tightly attached to the lower end of the adjusting handle; the inner ring of the upper end of the first spring is arranged on the lower end face of the concave copper sheet, and the lower end of the first spring is tightly attached to the diaphragm; the edge of the diaphragm is fixedly connected with the joint of the upper cavity and the lower cavity; the lower cavity is provided with a bubble breaking unit, and an oil outlet cavity is formed between the bubble breaking unit and the diaphragm; the bubble breaking unit comprises a valve core, a first cavity, a second spring, a filter screen and a rotating wheel; the upper end of the valve core is fixedly connected to the diaphragm, and the lower end of the valve core extends into the first cavity; the side wall of the first cavity is provided with a swinging block, the swinging block is connected to the side wall of the first cavity through a third spring, and a first rope is led out from the swinging block and is connected with a rotating wheel arranged near the lower end of the first cavity; the upper end of the second spring is fixedly connected with the lower end face of the valve core, and the lower end of the second spring is fixedly connected with the filter screen; the edge of the filter screen is fixedly connected with the cavity opening of the first cavity; the first rope is pulled through the rotation of the rotating wheel and drives the swinging block to swing, so that the bubbles in the viscous fluid flowing through the body are crushed; when the liquid flowing through the body flows through the viscous liquid, bubbles in the liquid can be attached to the side wall of the inner part of the body, and then the bubbles can block the inner part of the body, so that the liquid cannot smoothly pass through the inner part of the body; the runner rotates simultaneously, and the runner breaks the bubble in the liquid to and the pendulum piece is when the swing moves, and the pendulum piece collides the bubble for the bubble is broken, thereby when thick liquid flow through the body inside, liquid can flow through the body inside smoothly, and when liquid passed the filter screen, the filter screen was isolated at the filter screen lower terminal surface with some bubbles in the liquid, then the bubble just was broken by the runner.

Preferably, the lower end of the first cavity is provided with a tip blocking block; the bubble in the viscous liquid flowing through the body is crushed through the tip blocking block; during operation, when bubbles in the liquid touch the tip blocking block, the tip of the blocking block punctures the bubbles, and after the bubbles are punctured, the liquid cannot block the body when flowing through the inside of the body, so that the liquid flows out smoothly from the oil outlet cavity inside the body.

Preferably, a first groove is formed in the swinging block, a plurality of collision strips are arranged in the first groove, and each collision strip is hinged in the first groove; the bubbles in the viscous liquid flowing through the body are crushed by the swing of the collision strip; during operation, the swinging block swings up and down, the swinging block drives the collision strip to swing back and forth, the collision strip swings in the process of swinging, when the collision strip touches bubbles in liquid, the bubbles are broken by the collision strip, and at the moment, the liquid can smoothly flow through the inside of the body and finally flows out from the oil outlet cavity.

Preferably, a plurality of spikes are arranged on the third spring; the third spring is provided with the spine, so that the bubbles in the viscous fluid flowing through the body are crushed; the during operation, a rope pulls the pendulum piece motion, and the pendulum piece drives No. three springs and does to make a round trip to stretch out and draw back and open the action, and the point thorn on No. three springs is along with No. three spring synchronous motion simultaneously, when the point thorn touches the bubble in the liquid, the bubble is punctured to the point thorn, then inside liquid just can flow through the body smoothly, finally from going out the oil cavity and flowing.

Preferably, the end part of each collision strip is hinged with a swinging plate; the collision strip swings back and forth in the first groove to realize the back and forth swing of the swing plate; during operation, the collision strip is making the motion of back and forth swing from top to bottom, and the collision strip moves the swing plate motion, and the swing plate rotates from top to bottom around the pin joint, and when the swing plate touched the bubble in the liquid, the swing plate was beaten on the bubble, and the bubble just was broken by the swing plate, and then inside liquid just can flow through the body smoothly, finally from going out oil cavity outflow.

Preferably, the outer sides of the adjacent swing plates are respectively coated with magnetic materials with the same magnetism; the outer sides of the swing plates are respectively coated with magnetic materials with the same magnetism, so that the adjacent swing plates can swing mutually; during the during operation, during the swing board motion, because of scribble the magnetic material that magnetism is the same on the swing board between adjacent, when adjacent swing board is close to each other, can repel each other between the adjacent swing board, cause adjacent swing board amplitude of oscillation increase, the swing range increases, when the bubble in the swing board touching liquid, on the bubble was hit to the swing board, the bubble just was broken by the swing board, then inside liquid just can flow through the body smoothly, finally from a play oil cavity outflow.

The invention has the technical effects and advantages that:

1. according to the pressure reducing valve, liquid flowing through the body impacts the rotating wheel, then the rotating wheel rotates to break bubbles in the liquid, the impeller rotates to drive the swing block to swing up and down, the bubbles are broken when the swing block swings, the swing block moves to drive the third spring to do stretching and stretching alternate motion, and meanwhile, the sharp pricks on the third spring pierce the bubbles, so that the viscous liquid can smoothly flow through the body.

2. According to the pressure reducing valve, the swinging plates rotate around the hinge point, when the swinging plates rotate to touch the bubbles, the bubbles are broken, and the magnetic materials with the same magnetism are coated on the swinging plates, so that adjacent swinging plates which are close to each other are mutually repelled, the swinging amplitude of the swinging plates is increased, the swinging range is enlarged, the swinging plates are beneficial to breaking the bubbles in liquid, and the viscous liquid smoothly flows through the inside of the body.

Drawings

The invention is further described with reference to the following figures and embodiments.

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is an enlarged view of a portion of FIG. 3 at B;

FIG. 5 is an enlarged view of a portion of FIG. 4 at C;

in the figure: the device comprises a body 1, an upper cavity 11, a lower cavity 12, an oil outlet cavity 13, an adjusting handle 111, a concave copper sheet 112, a first spring 113, a diaphragm 114, a bubble breaking unit 2, a valve core 21, a first cavity 22, a tip blocking block 221, a second spring 23, a filter screen 24, a rotating wheel 25, a swing block 3, a third spring 31, a first groove 32, a sharp spine 311, a collision strip 33 and a swing plate 331.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the following embodiments.

As shown in fig. 1 to 5, the pressure reducing valve according to the present invention includes a body 1; the body 1 is divided into an upper cavity 11 and a lower cavity 12; an adjusting handle 111, a concave copper sheet 112, a first spring 113 and a diaphragm 114 are sequentially arranged in the upper cavity 11 from top to bottom; the adjusting handle 111 is connected to the upper end of the upper cavity 11 through threads; the edge of the concave copper sheet 112 is fixedly connected to the inner wall of the upper cavity 11, and the concave part of the concave copper sheet 112 is tightly attached to the lower end of the adjusting handle 111; the inner ring of the upper end of the first spring 113 is arranged on the lower end surface of the concave copper sheet 112, and the lower end of the first spring 113 is tightly attached to the diaphragm 114; the edge of the diaphragm 114 is fixedly connected with the joint of the upper cavity 11 and the lower cavity 12; the lower cavity 12 is provided with a bubble breaking unit 2, and an oil outlet cavity 13 is formed between the bubble breaking unit 2 and the membrane 114; the bubble breaking unit 2 comprises a valve core 21, a first cavity 22, a second spring 23, a filter screen 24 and a rotating wheel 25; the upper end of the valve core 21 is fixedly connected to the diaphragm 114, and the lower end of the valve core 21 extends into the first cavity 22; the side wall of the first cavity 22 is provided with a swinging block 3, the swinging block 3 is connected to the side wall of the first cavity 22 through a third spring 31, and a first rope is led out from the swinging block 3 and is connected with a rotating wheel 25 arranged near the lower end of the first cavity 22; the upper end of the second spring 23 is fixedly connected with the lower end face of the valve core 21, and the lower end of the second spring 23 is fixedly connected with a filter screen 24; the edge of the filter screen 24 is fixedly connected with the cavity opening of the first cavity 22; the first rope is pulled through the rotation of the rotating wheel 25 and drives the swinging block 3 to swing, so that the bubbles in the viscous fluid flowing through the body 1 are crushed; when the liquid flowing through the viscous liquid in the body 1 works, bubbles in the liquid can be attached to the side wall of the interior of the body 1, then the bubbles can block the interior of the body 1, so that the liquid cannot smoothly pass through the interior of the body 1, therefore, the rotating wheel 25 is arranged at the lower end of the first cavity 22, when the liquid flows through the interior of the body 1, the liquid impacts on the rotating wheel 25, then the rotating wheel 25 rotates, then the rotating wheel 25 pulls the swinging block 3 through the first rope, and under the constraint of the third spring 31, the swinging block 3 swings back and forth along the side wall of the first cavity 22; the runner 25 rotates simultaneously, the runner 25 breaks the bubbles in the liquid, and when the swinging block 3 swings, the swinging block 3 collides the bubbles, so that the bubbles are broken, when viscous liquid flows through the body 1, the liquid can smoothly flow through the body 1, when the liquid passes through the filter screen 24, the filter screen 24 isolates part of the bubbles in the liquid at the lower end face of the filter screen 24, and then the bubbles are broken by the runner 25.

As a specific embodiment of the present invention, the lower end of the first chamber 22 is provided with a tip stop block 221; the bubble in the viscous liquid flowing through the body 1 is crushed through the tip blocking block 221; when the liquid discharging device works, when bubbles in liquid touch the tip blocking block 221, the tip of the blocking block punctures the bubbles, and after the bubbles are punctured, the liquid cannot be blocked when flowing through the inside of the body 1, so that the liquid smoothly flows out of the oil outlet cavity 13 in the body 1.

As a specific embodiment of the present invention, a first groove 32 is formed in the swing block 3, a plurality of collision strips 33 are arranged in the first groove 32, and each collision strip 33 is hinged in the first groove 32; the collision strip 33 swings to realize the crushing of the bubbles in the viscous liquid flowing through the body 1; during operation, the swing block 3 swings up and down, the swing block 3 drives the collision strip 33 to swing up and down, the collision strip 33 breaks bubbles when the collision strip 33 touches the bubbles in the liquid in the swinging process, and at the moment, the liquid can smoothly flow through the inside of the body 1 and finally flows out of the oil outlet cavity 13.

As a specific embodiment of the present invention, the spring No. three 31 is provided with a plurality of spikes 311; the third spring 31 is provided with the spine 311, so that bubbles in viscous fluid flowing through the body 1 are crushed; during operation, a rope pulls the pendulum block 3 to move, and the pendulum block 3 drives the third spring 31 to do the back and forth stretching and stretching action, and the spine 311 on the third spring 31 moves along with the third spring 31 synchronously, and when the spine 311 touches the bubble in the liquid, the spine 311 pierces the bubble, and then the liquid just can flow through the body 1 smoothly inside, finally flows out from the oil outlet cavity 13.

As a specific embodiment of the present invention, the end of each collision bar 33 is hinged with a swing plate 331; the swing plate 331 swings back and forth in the first groove 32 through the collision strip 33; during operation, collision strip 33 is making the motion of reciprocating up and down, and collision strip 33 drives swing plate 331 and moves, and swing plate 331 makes a round trip to rotate from top to bottom around the pin joint, and when swing plate 331 touched the bubble in the liquid, swing plate 331 hit the bubble on, the bubble just was broken by swing plate 331, then inside liquid just can flow through body 1 smoothly, finally from going out oily chamber 13 outflow.

As a specific embodiment of the present invention, the outer sides of the adjacent swing plates 331 are respectively coated with magnetic materials with the same magnetism; the magnetic materials with the same magnetism are respectively coated on the outer sides of the swing plates 331, so that the adjacent swing plates 331 can swing mutually; in operation, when the swing plates 331 move, because the same magnetic material is coated on the swing plates 331 between adjacent ones, when the adjacent swing plates 331 are close to each other, the adjacent swing plates 331 repel each other, so that the swing amplitude of the adjacent swing plates 331 is increased, the swing range is increased, when the swing plates 331 touch bubbles in liquid, the swing plates 331 hit the bubbles, the bubbles are broken by the swing plates 331, and then the liquid can smoothly flow through the body 1 and finally flows out from the oil outlet cavity 13.

When the liquid flowing through the viscous liquid in the body 1 works, bubbles in the liquid can be attached to the side wall of the interior of the body 1, then the bubbles can block the interior of the body 1, so that the liquid cannot smoothly pass through the interior of the body 1, therefore, the rotating wheel 25 is arranged at the lower end of the first cavity 22, when the liquid flows through the interior of the body 1, the liquid impacts on the rotating wheel 25, then the rotating wheel 25 rotates, then the rotating wheel 25 pulls the swinging block 3 through the first rope, and under the constraint of the third spring 31, the swinging block 3 swings back and forth along the side wall of the first cavity 22; when the rotating wheel 25 rotates, the rotating wheel 25 breaks bubbles in the liquid, and when the swinging block 3 swings, the swinging block 3 collides the bubbles to break the bubbles, so that when viscous liquid flows through the inside of the body 1, the liquid can smoothly flow through the inside of the body 1, when the liquid passes through the filter screen 24, the filter screen 24 isolates part of the bubbles in the liquid at the lower end face of the filter screen 24, and then the bubbles are broken by the rotating wheel 25; when the air bubbles in the liquid touch the tip blocking block 221, the tip of the blocking block punctures the air bubbles, and after the air bubbles are punctured, the liquid cannot be blocked when flowing through the inside of the body 1, so that the liquid smoothly flows out of the oil outlet cavity 13 in the body 1; the swinging block 3 swings up and down, the swinging block 3 drives the collision strip 33 to swing up and down, the collision strip 33 breaks bubbles when the collision strip 33 touches the bubbles in the liquid in the swinging process of the collision strip 33, and the liquid can smoothly flow through the inside of the body 1 and finally flows out of the oil outlet cavity 13; the first rope pulls the swinging block 3 to move, the swinging block 3 drives the third spring 31 to do reciprocating stretching and expanding actions, meanwhile, the sharp 311 on the third spring 31 moves synchronously with the third spring 31, when the sharp 311 touches bubbles in liquid, the sharp 311 punctures the bubbles, then the liquid can smoothly flow through the inside of the body 1, and finally flows out of the oil outlet cavity 13; when the collision strip 33 does up-and-down back-and-forth swinging motion, the collision strip 33 drives the swing plate 331 to move, the swing plate 331 rotates up and down around the hinge point, when the swing plate 331 touches bubbles in the liquid, the swing plate 331 hits the bubbles, the bubbles are broken by the swing plate 331, and then the liquid can smoothly flow through the body 1 and finally flows out of the oil outlet cavity 13; when the swing plates 331 move, because the same magnetic material is coated on the adjacent swing plates 331, when the adjacent swing plates 331 are close to each other, the adjacent swing plates 331 repel each other, so that the swing amplitude of the adjacent swing plates 331 is increased, the swing range is increased, when the swing plates 331 touch bubbles in liquid, the swing plates 331 hit the bubbles, the bubbles are broken by the swing plates 331, and then the liquid can smoothly flow through the interior of the body 1 and finally flows out of the oil outlet cavity 13.

In operation, the front, the back, the left, the right, the upper and the lower are based on the figure 2 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and so on.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A pressure reducing valve comprising a body (1); the body (1) is divided into an upper cavity (11) and a lower cavity (12); an adjusting handle (111), a concave copper sheet (112), a first spring (113) and a diaphragm (114) are sequentially arranged in the upper cavity (11) from top to bottom; the adjusting handle (111) is connected to the upper end part of the upper cavity (11) through threads; the edge of the concave copper sheet (112) is fixedly connected to the inner wall of the upper cavity (11), and the concave part of the concave copper sheet (112) is tightly attached to the lower end of the adjusting handle (111); the inner ring of the upper end of the first spring (113) is arranged on the lower end surface of the concave copper sheet (112), and the lower end of the first spring (113) is tightly attached to the diaphragm (114); the edge of the diaphragm (114) is fixedly connected with the joint of the upper cavity (11) and the lower cavity (12); the method is characterized in that: the lower cavity (12) is provided with a bubble breaking unit (2), and an oil outlet cavity (13) is formed between the bubble breaking unit (2) and the diaphragm (114); the foam breaking unit (2) comprises a valve core (21), a first cavity (22), a second spring (23), a filter screen (24) and a rotating wheel (25); the upper end of the valve core (21) is fixedly connected to the diaphragm (114), and the lower end of the valve core (21) extends into the first cavity (22); the side wall of the first cavity (22) is provided with a swinging block (3), the swinging block (3) is connected to the side wall of the first cavity (22) through a third spring (31), and a first rope is led out from the swinging block (3) and is connected with a rotating wheel (25) arranged near the lower end of the first cavity (22); the upper end of the second spring (23) is fixedly connected with the lower end surface of the valve core (21), and the lower end of the second spring (23) is fixedly connected with a filter screen (24); the edge of the filter screen (24) is fixedly connected with the cavity opening of the first cavity (22); rotate through runner (25) and pull a rope, a rope drives pendulum piece (3) swing, realizes the breakage to flowing through bubble in the thick liquid in body (1).

2. A pressure reducing valve according to claim 1, wherein: the lower end of the first cavity (22) is provided with a tip blocking block (221); the bubble in the viscous liquid flowing through the body (1) is broken through the tip blocking block (221).

3. A pressure reducing valve according to claim 1, wherein: a first groove (32) is formed in the swing block (3), a plurality of collision strips (33) are arranged in the first groove (32), and each collision strip (33) is hinged in the first groove (32); the air bubbles in the viscous liquid flowing through the body (1) are crushed by the swing of the collision strip (33).

4. A pressure reducing valve according to claim 1, wherein: a plurality of spikes (311) are arranged on the third spring (31); the third spring (31) is provided with the spine (311), so that bubbles in viscous fluid flowing through the body (1) are broken.

5. A pressure reducing valve according to claim 3, wherein: the end part of each collision strip (33) is hinged with a swinging plate (331); the swing plate (331) swings back and forth through the collision strip (32) swinging back and forth in the first groove (31).

6. The pressure reducing valve according to claim 5, wherein: the outer sides of the adjacent swing plates (331) are coated with magnetic materials with the same magnetism respectively; the mutual swing between the adjacent swing plates (331) is realized by coating the outer sides of the swing plates (331) with magnetic materials with the same magnetism respectively.