CN213745034U

CN213745034U - Pressure reduction flow control valve for balance cylinder

Info

Publication number: CN213745034U
Application number: CN202022595193.3U
Authority: CN
Inventors: 杨瑷宁; 唐青天
Original assignee: Kunshan Litian Machinery Equipment Co ltd
Current assignee: Kunshan Litian Machinery Equipment Co ltd
Priority date: 2020-11-11
Filing date: 2020-11-11
Publication date: 2021-07-20
Anticipated expiration: 2030-11-11

Abstract

The utility model discloses a balanced jar is with decompression flow control valve, concretely relates to flow control valve field, which comprises a valve body, the fixed ball valve that is equipped with in the inside center department of valve body, the ball valve falls into two parts with the valve body, valve body one side threaded connection has the feed liquor pipe, valve body opposite side threaded connection has the drain pipe, the fixed installation piece that is equipped with in valve body one side top, the inside cavity of having seted up of installation piece, the opening has been seted up on cavity bottom surface, the opening cross-section sets up to L shape, the inside activity of opening is equipped with sealed piece, sealed piece cross-section sets up to falling trapezoidally, the fixed annular membrane that is equipped with in sealed piece top. The utility model discloses an annular membrane that sets up between sealed piece and installation piece cavity, annular membrane and the cooperation of the annular sheet rubber in the through-hole, compare with prior art, improve the leakproofness between electric telescopic handle rod end and the installation piece greatly, sealed effect is better.

Description

Pressure reduction flow control valve for balance cylinder

Technical Field

The utility model relates to a flow control valve field, concretely relates to balanced jar is with decompression flow control valve.

Background

The flow control valve is a valve which controls the flow of the throttling orifice by changing the size of the hydraulic resistance of the throttling orifice under a certain pressure difference so as to adjust the movement speed of an actuating element. The traditional flow control valve is easy to leak under the condition of long-term use or overlarge pressure, so that not only is the resource waste caused, but also the working environment is influenced.

Chinese patent with publication number CN 207034318U discloses a novel leak protection type flow control valve, pressure relief device includes casing, upper cover, electro-magnet, terminal box, moves iron core, sealed piece and pipeline, and four corners of casing bottom are equipped with the connecting block, and the casing passes through the bolt fastening on the outer wall of valve body inlet department, and is equipped with down the decompression mouth on the valve body. The utility model has novel structure and scientific and reasonable design; the sealing performance is good, and the pressure reducing device can be started under the condition of larger pressure, so that the flow control valve does not leak, resources are not wasted, and the working environment is not influenced.

The prior art has the following defects: when the movable iron core moves up and down, a gap is easy to exist between the movable iron core and the shell, and water leaks from the gap for a long time to affect use.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a decompression flow control valve for balance cylinder, through the annular membrane that sets up between sealed piece and installation piece cavity, the annular membrane cooperates with the annular sheet rubber in the through-hole, compares with prior art, improves the leakproofness between electric telescopic handle rod end and the installation piece greatly, and sealed effect is better.

In order to achieve the above object, the present invention provides the following technical solutions: a pressure reduction and flow control valve for a balance cylinder comprises a valve body, wherein a ball valve is fixedly arranged at the center of the inside of the valve body and divides the valve body into two parts, a liquid inlet pipe is connected with one side of the valve body through threads, a liquid outlet pipe is connected with the other side of the valve body through threads, an installation block is fixedly arranged at the top of one side of the valve body, a cavity is formed in the installation block, a circulation hole is formed in the surface of the bottom of the cavity, the section of the circulation hole is L-shaped, a sealing block is movably arranged in the circulation hole, the section of the sealing block is inverted trapezoid, an annular membrane is fixedly arranged at the top of the sealing block, the top of the annular membrane is fixedly connected with the inner wall of the top of the cavity, an electric telescopic rod is fixedly arranged at the top of the installation block, the bottom of the rod end of the electric telescopic rod penetrates through the installation block and extends into the cavity, and the bottom of the rod end of the electric telescopic rod is fixedly connected with the top of the sealing block, the cavity bottom is kept away from circulation hole one side and is fixedly equipped with the water pipe, inside the valve body was run through to the water pipe bottom and extended to the valve body, the valve body was close to fixedly on a drain pipe lateral wall and is equipped with the feed liquor hole.

Furthermore, an annular rubber pad is fixedly arranged on the surface of the outer wall of the sealing block, and the section of the annular rubber pad is corrugated.

Furthermore, one side of the circulation hole extends to the surface of the outer wall of the mounting block, a hose is fixedly arranged inside the circulation hole, and one end of the hose is fixedly arranged in the liquid inlet hole.

Furthermore, a ring plate is fixedly arranged on the outer wall of the cylinder end of the electric telescopic rod, and the bottom of the ring plate is fixedly connected with the top of the mounting block.

Furthermore, a through hole is formed in the top surface of the mounting block, an annular rubber sheet is fixedly arranged on the surface of the inner wall of the through hole, and the inner wall of the annular rubber sheet is in contact with the outer wall of the rod end of the electric telescopic rod.

Further, the annular membrane is made of a silica gel material.

Furthermore, the surfaces of the outer side walls of the liquid inlet pipe and the liquid outlet pipe are respectively fixedly provided with a flange plate.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model has the advantages that the annular membrane arranged between the sealing block and the cavity of the mounting block is matched with the annular rubber sheet in the through hole, compared with the prior art, the sealing performance between the rod end of the electric telescopic rod and the mounting block is greatly improved, and the sealing effect is better;

2. through the setting of corrugate annular rubber pad, when the sealing block moved to the through-hole in, annular rubber pad can increase the leakproofness between sealing block and the through-hole, avoided liquid to flow out from the through-hole when not needing the decompression.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

Fig. 1 is a cross-sectional view of the overall structure provided by the present invention;

FIG. 2 is a side view of the overall structure provided by the present invention;

fig. 3 is a cross-sectional view of the mounting block provided by the present invention;

fig. 4 is a cross-sectional view of the sealing block provided by the present invention;

fig. 5 is a cross-sectional view of the ball valve provided by the present invention;

in the figure: 1 valve body, 2 ball valves, 3 liquid inlet pipes, 4 liquid outlet pipes, 5 mounting blocks, 6 cavities, 7 circulation holes, 8 sealing blocks, 9 annular membranes, 10 electric telescopic rods, 11 water pipes, 12 liquid inlet holes, 13 annular rubber pads, 14 hoses, 15 annular plates, 16 through holes, 17 annular rubber sheets and 18 flange plates.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. 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.

Referring to the attached drawings 1-5 of the specification, the pressure reduction and flow control valve for the balance cylinder in the embodiment comprises a valve body 1, a ball valve 2 is fixedly arranged at the center inside the valve body 1, the ball valve 2 divides the valve body 1 into two parts, a liquid inlet pipe 3 is connected to one side of the valve body 1 in a threaded manner, a liquid outlet pipe 4 is connected to the other side of the valve body 1 in a threaded manner, an installation block 5 is fixedly arranged at the top of one side of the valve body 1, a cavity 6 is arranged inside the installation block 5, a circulation hole 7 is arranged on the bottom surface of the cavity 6, the section of the circulation hole 7 is L-shaped, a sealing block 8 is movably arranged inside the circulation hole 7, the section of the sealing block 8 is inverted trapezoid, an annular membrane 9 is fixedly arranged at the top of the sealing block 8, the top of the annular membrane 9 is fixedly connected with the inner wall of the top of the cavity 6, and an electric telescopic rod 10 is fixedly arranged at the top of the

installation block

5, 10 rod end bottoms of electric telescopic handle run through installation piece 5 and extend to inside 6 cavities, 10 rod end bottoms of electric telescopic handle and 8 top fixed connection of sealed piece, 6 bottoms of cavity are kept away from 7 one sides of opening and are fixed and be equipped with water pipe 11, inside water pipe 11 bottom run through valve body 1 and extend to valve body 1, valve body 1 is close to fixed feed liquor hole 12 that is equipped with on 4 lateral walls of drain pipe.

Furthermore, the outer wall surface of the sealing block 8 is fixedly provided with an annular rubber pad 13, and the section of the annular rubber pad 13 is corrugated, so that the sealing property between the sealing block 8 and the circulation hole 7 is greatly improved.

Furthermore, one side of the circulation hole 7 extends to the outer wall surface of the mounting block 5, a hose 14 is fixedly arranged inside the circulation hole 7, and one end of the hose 14 is fixedly arranged in the liquid inlet hole 12 and used for quickly conveying liquid into the liquid inlet hole 12 to realize pressure reduction.

Further, a ring plate 15 is fixedly arranged on the outer wall of the cylinder end of the electric telescopic rod 10, the bottom of the ring plate 15 is fixedly connected with the top of the mounting block 5, the electric telescopic rod 10 is limited and fixed, and the sealing performance between the electric telescopic rod 10 and the mounting block 5 can be improved.

Further, through-hole 16 has been seted up on the surface of 5 tops of installation piece, the fixed annular sheet rubber 17 that is equipped with in through-hole 16 inner wall surface, the contact of annular sheet rubber 17 inner wall and 10 rod end outer walls of electric telescopic handle increases the leakproofness between electric telescopic handle 10 and through-hole 16.

Furthermore, the annular membrane 9 is made of a silica gel material, and the annular membrane 9 made of the silica gel material has high elasticity and is resistant to pulling.

Furthermore, flange plates 18 are fixedly arranged on the outer side wall surfaces of the liquid inlet pipe 3 and the liquid outlet pipe 4.

The utility model discloses the theory of operation:

referring to the attached drawings 1-5 of the specification, when in use, a liquid inlet pipe 3 on a valve body 1 is connected with a liquid infusion device through a flange 18, then a liquid outlet pipe 4 is connected into a cylinder body of a balance cylinder, the flow speed of liquid is controlled through a ball valve 2 between the valve bodies 1, when infusion is carried out, the pressure at the liquid inlet pipe 3 is overlarge, an electric telescopic rod 10 is opened, the electric telescopic rod 10 stretches and retracts to drive a sealing block 8 to move upwards in a cavity 6 of an installation block 5, the bottom of the sealing block 8 moves out of a circulation hole 7, the liquid at the liquid inlet pipe 3 can flow into the cavity 6 through a water pipe 11, then flows into a hose 14 from the circulation hole 7 and flows into the liquid outlet pipe 4 through the hose 14, the pressure of the liquid at the liquid inlet pipe 3 is divided, the sealing block 8 is trapezoidal, the size of a gap between the sealing block 8 and the circulation hole 7 is convenient to control, the flow speed of the liquid in the cavity 6, the corrugated annular rubber pad 13 is arranged on the outer wall of the sealing block 8, so that the sealing performance between the sealing block 8 and the circulation hole 7 is improved. Through the annular membrane 9 that sets up between 5 cavity 6 inner walls of sealed piece 8 and installation piece, form between electric telescopic handle 10 and through-hole 16 and separate the fender, the annular sheet rubber 17 that sets up in the through-hole 16 avoids liquid to spill from the space between 10 rod ends of electric telescopic handle and through-hole 16, and the ring plate 15 that 10 jar ends of electric telescopic handle set up carries out spacing fixed to electric telescopic handle 10, improves electric telescopic handle 10's leakproofness.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. The utility model provides a decompression flow control valve for balance cylinder, includes valve body (1), its characterized in that: the valve body (1) is fixedly provided with a ball valve (2) at the center inside, the ball valve (2) divides the valve body (1) into two parts, one side of the valve body (1) is in threaded connection with a liquid inlet pipe (3), the other side of the valve body (1) is in threaded connection with a liquid outlet pipe (4), the top of one side of the valve body (1) is fixedly provided with a mounting block (5), the inside of the mounting block (5) is provided with a cavity (6), the bottom surface of the cavity (6) is provided with a circulation hole (7), the cross section of the circulation hole (7) is arranged in an L shape, the inside of the circulation hole (7) is movably provided with a sealing block (8), the cross section of the sealing block (8) is arranged in an inverted trapezoid shape, the top of the sealing block (8) is fixedly provided with an annular membrane (9), the top of the annular membrane (9) is fixedly connected with the inner wall of the top of the cavity (6), the top of the mounting block (5) is fixedly provided with an electric telescopic rod (10), electric telescopic handle (10) rod end bottom runs through installation piece (5) and extends to inside cavity (6), electric telescopic handle (10) rod end bottom and sealed piece (8) top fixed connection, circulation hole (7) one side is kept away from to cavity (6) bottom and is fixed and be equipped with water pipe (11), inside water pipe (11) bottom runs through valve body (1) and extends to valve body (1), fixed feed liquor hole (12) that are equipped with on valve body (1) is close to drain pipe (4) a lateral wall.

2. The decompression flow control valve for the balance cylinder according to claim 1, wherein: the sealing block (8) is characterized in that an annular rubber pad (13) is fixedly arranged on the surface of the outer wall of the sealing block, and the section of the annular rubber pad (13) is corrugated.

3. The decompression flow control valve for the balance cylinder according to claim 1, wherein: one side of the circulation hole (7) extends to the surface of the outer wall of the mounting block (5), a hose (14) is fixedly arranged inside the circulation hole (7), and one end of the hose (14) is fixedly arranged in the liquid inlet hole (12).

4. The decompression flow control valve for the balance cylinder according to claim 1, wherein: the outer wall of the cylinder end of the electric telescopic rod (10) is fixedly provided with a ring plate (15), and the bottom of the ring plate (15) is fixedly connected with the top of the mounting block (5).

5. The decompression flow control valve for the balance cylinder according to claim 1, wherein: through-hole (16) have been seted up on installation piece (5) top surface, through-hole (16) inner wall fixed surface is equipped with annular sheet rubber (17), annular sheet rubber (17) inner wall and electric telescopic handle (10) rod end outer wall contact.

6. The decompression flow control valve for the balance cylinder according to claim 1, wherein: the annular membrane (9) is made of a silica gel material.

7. The decompression flow control valve for the balance cylinder according to claim 1, wherein: and flange plates (18) are fixedly arranged on the outer side wall surfaces of the liquid inlet pipe (3) and the liquid outlet pipe (4).