CN210088004U

CN210088004U - Valve with current-limiting self-locking function

Info

Publication number: CN210088004U
Application number: CN201920581945.5U
Authority: CN
Inventors: 韩长青
Original assignee: Binhai Liansheng Valve Co Ltd
Current assignee: Binhai Liansheng Valve Co Ltd
Priority date: 2019-04-26
Filing date: 2019-04-26
Publication date: 2020-02-18
Anticipated expiration: 2029-04-26

Abstract

The utility model relates to the technical field of valves, and a valve with current-limiting self-locking function is disclosed, which comprises a valve body, the water inlet has been seted up in the left side of valve body, the delivery port has been seted up on the right side of valve body, the top fixed mounting of valve body has the casing, the inside fixed mounting of valve body has the communicating pipe that is linked together with water inlet and delivery port respectively, the through-hole has been seted up in the outside of communicating pipe, the inside movable mounting of communicating pipe has the passive piston that is located the through-hole below, the top fixed mounting of passive piston has one end to extend to the inside connecting axle of casing, the inside fixed mounting of communicating pipe has the gag lever post that is located the through-hole top, the. This valve with current-limiting self-locking function possesses advantages such as adjustable current-limiting flow, has solved among the prior art problem that the size of its flow restriction can not be adjusted to the restriction valve in the use.

Description

Valve with current-limiting self-locking function

Technical Field

The utility model relates to the technical field of valves, specifically be a valve with current-limiting self-locking function.

Background

The valve is a device used for controlling the direction, pressure and flow of fluid in a fluid system, and is a device which can make the medium (liquid, gas and powder) in the piping and equipment flow or stop and can control the flow of the medium, and the control of the valve can adopt various transmission modes, such as manual, electric, hydraulic, pneumatic, turbine, electromagnetic hydraulic, electrohydraulic, pneumatic hydraulic, spur gear, bevel gear drive and the like; the valve can be operated according to the preset requirement under the action of pressure, temperature or other forms of sensing signals, or can be simply opened or closed without depending on the sensing signals, and the valve can make the opening and closing piece perform lifting, sliding, swinging or rotating motion by depending on a driving or automatic mechanism, so that the size of the flow passage area of the valve can be changed to realize the control function of the valve.

The flow limiting valve in the prior art cannot adjust the flow limiting size in the using process, so that the valve with the flow limiting and self-locking functions is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a valve with current-limiting self-locking function possesses advantages such as adjustable current-limiting flow, has solved among the prior art problem that the size of its flow restriction can not be adjusted to the current limiting valve in the use.

(II) technical scheme

For the purpose that realizes above-mentioned adjustable current-limiting flow, the utility model provides a following technical scheme: a valve with current-limiting self-locking function comprises a valve body, wherein a water inlet is formed in the left side of the valve body, a water outlet is formed in the right side of the valve body, a shell is fixedly mounted at the top of the valve body, a communicating pipe which is respectively communicated with the water inlet and the water outlet is fixedly mounted in the valve body, a through hole is formed in the outer side of the communicating pipe, a driven piston which is positioned below the through hole is movably mounted in the communicating pipe, a connecting shaft of which one end extends into the shell is fixedly mounted at the top of the driven piston, a limiting rod which is positioned above the through hole is fixedly mounted in the communicating pipe, one end, away from the communicating pipe, of the limiting rod is fixedly connected with a limiting ring, an active piston which is positioned in the shell is fixedly mounted at the top of the connecting shaft, the top fixed mounting of plane bearing has the threaded rod that one end extends to the casing top, the top fixed mounting of threaded rod has the carousel.

Preferably, the valve body is internally provided with an interlayer positioned between the water inlet and the water outlet, and the communicating pipe is connected with the interlayer of the valve body.

Preferably, the diameter of the driving piston is matched with the inner side of the shell, the shell is communicated with the valve body, the front side and the back side of the driven piston are provided with leakage grooves, and the leakage grooves and the through holes are distributed in a staggered mode.

Preferably, the connecting shaft is located on the inner side of the limiting ring, and the connecting shaft is movably connected with the limiting ring.

Preferably, the quantity of gag lever post is three, and three gag lever post is equidistance evenly distributed, and the one end that communicating pipe was kept away from to three gag lever post all with spacing ring fixed connection.

Preferably, the shell is internally provided with a thread groove, and the threaded rod is in threaded connection with the shell.

(III) advantageous effects

Compared with the prior art, the utility model provides a valve with current-limiting self-locking function possesses following beneficial effect:

this valve with current-limiting self-locking function, be connected with the pipeline respectively through the water inlet with the valve and delivery port, when the water of pipeline gets into the water inlet, the inside water of water inlet circulates to the delivery port through the through-hole of communicating pipe, the flow of through-hole is the fixed value, when the velocity of flow of water inlet accelerates, the flow change of through-hole, the inside water pressure of water inlet risees, promote initiative piston rebound simultaneously compression spring, initiative piston drives connecting axle rebound, the connecting axle drives passive piston rebound, thereby seal the through-hole, block the intercommunication of water inlet and delivery port, it can make the threaded rod reciprocate in the inside of casing to rotate the carousel, compression spring, the effort changes after the spring receives the compression, thereby changed the water pressure that promotes the activity of initiative piston, the purpose of adjustable current-limiting flow has been reached.

Drawings

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

fig. 2 is a top view of the limiting ring structure of the present invention.

In the figure: the water inlet valve comprises a valve body 1, a water inlet 2, a water outlet 3, a shell 4, an active piston 5, a spring 6, a plane bearing 7, a threaded rod 8, a turntable 9, a connecting shaft 10, a limiting rod 11, a limiting ring 12, a through hole 13, a passive piston 14 and a communicating pipe 15.

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.

Referring to fig. 1-2, the present invention provides a technical solution: a valve with current-limiting self-locking function comprises a valve body 1, a water inlet 2 is arranged on the left side of the valve body 1, a water outlet 3 is arranged on the right side of the valve body 1, a shell 4 is fixedly arranged on the top of the valve body 1, a communicating pipe 15 communicated with the water inlet 2 and the water outlet 3 is fixedly arranged in the valve body 1, an interlayer positioned between the water inlet 2 and the water outlet 3 is arranged in the valve body 1, the communicating pipe 15 is mutually connected with the interlayer of the valve body 1, a through hole 13 is arranged on the outer side of the communicating pipe 15, a passive piston 14 positioned below the through hole 13 is movably arranged in the communicating pipe 15, the diameter of the active piston 5 is matched with the inner side of the shell 4, the shell 4 is communicated with the valve body 1, a leakage groove is arranged on the front side and the back side of the passive piston 14, the leakage groove and the through hole 13, a limiting rod 11 positioned above the through hole 13 is fixedly arranged inside the communicating pipe 15, one end of the limiting rod 11 far away from the communicating pipe 15 is fixedly connected with a limiting ring 12, the connecting shaft 10 is positioned on the inner side of the limiting ring 12, the connecting shaft 10 is movably connected with the limiting ring 12, the number of the limiting rods 11 is three, the three limiting rods 11 are uniformly distributed at equal intervals, one ends of the three limiting rods 11 far away from the communicating pipe 15 are fixedly connected with the limiting ring 12, a driving piston 5 positioned inside the shell 4 is fixedly arranged at the top of the connecting shaft 10, a spring 6 is fixedly arranged at the top of the driving piston 5, a plane bearing 7 is fixedly arranged at the top of the spring 6, a threaded rod 8 with one end extending to the top of the shell 4 is fixedly arranged at the top of the plane bearing 7, a turntable 9 is fixedly arranged at the top of the threaded rod 8, a threaded groove is formed inside the shell, by connecting the water inlet 2 and the water outlet 3 of the valve with the pipeline respectively, when the water in the pipeline enters the water inlet 2, the water in the water inlet 2 is circulated to the water outlet 3 through the through hole 13 of the communication pipe 15, the flow rate of the through hole 13 is a fixed value, when the flow rate of the water inlet 2 is increased, the flow rate of the through hole 13 is changed, the water pressure in the water inlet 2 is increased, the driving piston 5 is pushed to move upwards and compress the spring 6, the driving piston 5 drives the connecting shaft 10 to move upwards, the connecting shaft 10 drives the driven piston 14 to move upwards, thereby sealing the through hole 13, blocking the communication between the water inlet 2 and the water outlet 3, rotating the rotary disc 9 to enable the threaded rod 8 to move up and down in the shell 4, compressing the spring 6, changing the acting force of the spring 6 after being compressed, thereby changing the water pressure for pushing the active piston 5 to move and achieving the purpose of adjusting the flow limiting.

In summary, according to the valve with the current-limiting self-locking function, the water inlet 2 and the water outlet 3 of the valve are respectively connected with the pipeline, when water in the pipeline enters the water inlet 2, the water in the water inlet 2 flows to the water outlet 3 through the through hole 13 of the communicating pipe 15, the flow of the through hole 13 is a fixed value, when the flow rate of the water inlet 2 is accelerated, the flow of the through hole 13 changes, the water pressure in the water inlet 2 rises, the driving piston 5 is pushed to move upwards and compress the spring 6, the driving piston 5 drives the connecting shaft 10 to move upwards, the connecting shaft 10 drives the driven piston 14 to move upwards, so that the through hole 13 is sealed, the communication between the water inlet 2 and the water outlet 3 is blocked, the threaded rod 8 can move upwards and downwards in the shell 4 by rotating the rotary disc 9, the spring 6 is compressed, the acting force of the spring 6 is changed, and, the purpose of adjustable current-limiting flow is achieved, and the problem that the size of the current-limiting valve cannot be adjusted in the using process in the prior art is solved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

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. The utility model provides a valve with current-limiting self-locking function, includes valve body (1), its characterized in that: a water inlet (2) is formed in the left side of the valve body (1), a water outlet (3) is formed in the right side of the valve body (1), a shell (4) is fixedly mounted at the top of the valve body (1), a communicating pipe (15) communicated with the water inlet (2) and the water outlet (3) is fixedly mounted in the valve body (1), a through hole (13) is formed in the outer side of the communicating pipe (15), a passive piston (14) positioned below the through hole (13) is movably mounted in the communicating pipe (15), a connecting shaft (10) with one end extending to the interior of the shell (4) is fixedly mounted at the top of the passive piston (14), a limiting rod (11) positioned above the through hole (13) is fixedly mounted in the communicating pipe (15), and one end, away from the communicating pipe (15), of the limiting rod (11) is fixedly connected with a limiting ring, the top fixed mounting of connecting axle (10) has initiative piston (5) that is located casing (4) inside, the top fixed mounting of initiative piston (5) has spring (6), the top fixed mounting of spring (6) has flat housing (7), the top fixed mounting of flat housing (7) has threaded rod (8) that one end extends to casing (4) top, the top fixed mounting of threaded rod (8) has carousel (9).

2. The valve with the function of flow limiting and self-locking as claimed in claim 1, wherein: the water inlet and outlet valve is characterized in that an interlayer located between the water inlet (2) and the water outlet (3) is arranged inside the valve body (1), the communicating pipe (15) is connected with the interlayer of the valve body (1), the front face and the back face of the passive piston (14) are provided with leakage grooves, and the leakage grooves and the through holes (13) are distributed in a staggered mode.

3. The valve with the function of flow limiting and self-locking as claimed in claim 1, wherein: the diameter of the driving piston (5) is matched with the inner side of the shell (4), and the shell (4) is communicated with the valve body (1).

4. The valve with the function of flow limiting and self-locking as claimed in claim 1, wherein: the connecting shaft (10) is positioned on the inner side of the limiting ring (12), and the connecting shaft (10) is movably connected with the limiting ring (12).

5. The valve with the function of flow limiting and self-locking as claimed in claim 1, wherein: the quantity of gag lever post (11) is three, and three gag lever post (11) are equidistance evenly distributed, and the one end that communicating pipe (15) were kept away from in three gag lever post (11) all with spacing ring (12) fixed connection.

6. The valve with the function of flow limiting and self-locking as claimed in claim 1, wherein: the threaded groove is formed in the shell (4), and the threaded rod (8) is in threaded connection with the shell (4).