CN212251163U

CN212251163U - Stop throttling non-return multifunctional valve

Info

Publication number: CN212251163U
Application number: CN202020853019.1U
Authority: CN
Inventors: 金华聪
Original assignee: Yuhuan Yirong Machinery Co ltd
Current assignee: Yuhuan Yirong Machinery Co ltd
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2020-12-29
Anticipated expiration: 2030-05-20

Abstract

The utility model relates to the technical field of valves, concretely relates to by throttle non return multifunctional valve, include: the valve comprises a hand wheel, a rotating screw rod, a piston and a valve main body, wherein the rotating screw rod is fixedly installed at the center of the hand wheel, the rotating screw rod is rotatably connected with the valve main body, and the other end of the rotating screw rod is fixedly connected with the piston; a water inlet and a water outlet are formed in two sides of the valve main body; a first spacer block is fixedly arranged on one side of the water inlet and is hoisted on the top of the inner wall of the valve main body; a second spacer block is fixedly arranged on one side of the water outlet and fixedly arranged at the bottom of the inner wall of the valve main body; the first spacer block and the second spacer block act together with the piston to seal the inner wall of the valve main body, so that the functions of three valves including stop, throttling and non-return can be realized, the three valves including the stop, the throttling and the non-return of the pump outlet can be replaced, and one valve is multipurpose.

Description

Stop throttling non-return multifunctional valve

Technical Field

The utility model relates to the technical field of valves, concretely relates to by throttle non return multifunctional valve.

Background

A valve is a device for controlling the direction, pressure, and flow rate of a fluid in a fluid system, and is a device capable of controlling the flow rate of a medium (liquid, gas, or powder) in a pipe or equipment by flowing or stopping the medium.

The valve is a control part in a pipeline fluid conveying system, is used for changing the section of a passage and the flowing direction of a medium, and has the functions of diversion, cut-off, throttling, check, flow splitting, overflow pressure relief and the like. Valves used for fluid control range from the simplest shut-off valves to the various valves used in extremely complex autonomous systems, and are of a wide variety of types and specifications, with nominal diameters of the valves ranging from small instrument valves up to 10M for industrial piping. The valve can be used for controlling the flow of various fluids such as water, steam, oil products, gas, slurry, various corrosive media, liquid metal, radioactive fluid and the like, the working pressure of the valve can be ultrahigh pressure from 0.0013MPa to 1000MPa, and the working temperature can be ultralow at-270 ℃ and high at 1430 ℃.

The valve can be controlled by adopting 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 is changed to realize the control function of the valve.

In the prior art, most manual valves only have single functions of stopping, throttling and non-return, and cannot realize multiple purposes.

In view of this, a cutoff throttling non-return multifunctional valve is urgently needed, which can realize the functions of three valves of cutoff, throttling and non-return, can replace three valves of cutoff, throttling and non-return at an outlet of a pump, and realizes multiple functions of one valve.

SUMMERY OF THE UTILITY MODEL

In order to solve the deficiencies of the prior art, the utility model aims to provide a stop throttle non return multifunctional valve can realize the function of collection by, throttle and three kinds of valves of non return, can replace the pump export by, throttle and three valves of non return, realizes that a valve is multi-purpose.

In order to realize the above object, the technical scheme of the utility model is that: a stop-throttle check multifunctional valve comprising: the valve comprises a hand wheel, a rotating screw rod, a piston and a valve main body, wherein the rotating screw rod is fixedly installed at the center of the hand wheel, the rotating screw rod is rotatably connected with the valve main body, and the other end of the rotating screw rod is fixedly connected with the piston; a water inlet and a water outlet are formed in two sides of the valve main body; a first spacer block is fixedly arranged on one side of the water inlet and is hoisted on the top of the inner wall of the valve main body; a second spacer block is fixedly arranged on one side of the water outlet and fixedly arranged at the bottom of the inner wall of the valve main body; the first spacing block and the second spacing block and the piston jointly act to seal the inner wall of the valve main body.

Furthermore, the valve main body center is fixedly provided with an installation groove matched with the rotary screw rod.

Further, the mounting groove outer wall is provided with the screw thread, the screw thread cooperates with the gland nut inner wall, gland nut inner wall top is provided with the sealing member.

Furthermore, the tail ends of the first spacing block and the second spacing block are semicircular, and the piston is matched and sealed with the semicircular tail ends of the first spacing block and the second spacing block.

Furthermore, the piston and the sealing element are made of flexible materials such as rubber.

Has the advantages that:

the utility model provides a pair of by throttle non return multifunctional valve keeps apart into two relative confined cavitys with water inlet and delivery port through first baffle and second baffle, thereby drives the flexible intercommunicating pore that opens and close water inlet and delivery port of piston through rotating the lead screw and reaches the function by, throttle and three kinds of valves of non return, can replace the pump export by, throttle and three valves of non return, realizes that a valve is multi-purpose.

Drawings

FIG. 1 is a schematic perspective view of the stop throttle check multifunctional valve of the present invention;

FIG. 2 is a schematic view of the stop throttle check multifunctional valve side of the present invention;

FIG. 3 is a cross-sectional view of the AA side of the stop throttle check multifunctional valve of the present invention;

the labels in the figure are: 1-hand wheel, 2-rotary screw rod, 3-piston, 4-valve body, 5-sealing nut, 41-water inlet, 42-water outlet, 43-mounting groove, 411-first spacing block, 412-second spacing block and 431-thread.

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. All other embodiments obtained by a person skilled in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

As shown in the figure, the utility model discloses a by throttle non return multifunctional valve, include: the valve comprises a hand wheel 1, a rotary screw rod 2, a piston 3 and a valve body 4, wherein the rotary screw rod 2 is fixedly installed at the center of the hand wheel 1, the rotary screw rod 2 is rotatably connected with the valve body 4, and the other end of the rotary screw rod 2 is fixedly connected with the piston 3; a water inlet 41 and a water outlet 42 are arranged on two sides of the valve main body 4; a first spacer block 411 is fixedly installed on one side of the water inlet 41, and the first spacer block 411 is hung on the top of the inner wall of the valve main body 4; a second spacer 412 is fixedly installed at one side of the water outlet 42, and the second spacer 412 is fixedly installed at the bottom of the inner wall of the valve body 4; the first and

second spacers

411 and 412 cooperate with the piston 3 to close the inner wall of the valve body 4.

In this embodiment, the valve body 4 is fixedly provided at the center thereof with an installation groove 43 matched with the rotary screw rod 2.

In this embodiment, the outer wall of the mounting groove 43 is provided with a thread 413, the thread 413 is matched with the inner wall of the sealing nut 5, and the top of the inner wall of the sealing nut 5 is provided with a sealing element.

In this embodiment, the ends of the first spacer blocks 411 and the ends of the second spacer blocks 412 are semicircular, and the piston 3 is closed by matching with the semicircular ends of the first spacer blocks 411 and the second spacer blocks 412.

In this embodiment, the piston 3 and the sealing member are made of a flexible material such as rubber.

The working principle is as follows:

in the working process, the first spacing block 411 is hung on the top surface of the inner wall of the valve body 4, the second spacing block 412 is fixedly installed on the bottom surface of the inner wall of the valve body 4, the hand wheel 1 is rotated, the hand wheel 1 drives the rotary screw rod 2 to rotate and extend, and the piston 3 fixedly installed at the movable end of the rotary screw rod 2 is filled into a groove which is formed by combining the first spacing block 411 and the second spacing block 412 in a semicircular mode and is matched with the piston 3, so that the inner wall of the whole valve body 4 is sealed. At this time, the outer wall of the first partition block 411, the inner wall of the second partition block 412 and the water inlet 41 form a relatively closed cavity; the inner wall of the first spacer 411, the outer wall of the second spacer 412 and the water outlet 42 form a relatively closed cavity, so that the whole valve body 4 is divided into two parts to form a medium stop. The hand wheel 1 is rotated, the hand wheel 1 drives the rotary screw rod 2 to shorten, the piston 3 fixedly installed at the movable end of the rotary screw rod 2 is slowly taken out from a groove which is formed by combining the first spacing block 411 and the second spacing block 412 in a semicircular mode and is matched with the piston 3, the two cavities which are relatively closed are communicated, the flow can be controlled by controlling the extension and shortening of the screw rod, and therefore the throttling function is achieved.

Because the water inlet 41 flows into the cavity of the water outlet 42 from the semicircular groove formed by combining the first partition block 411 and the second partition block 412, and because the second partition block 412 is fixedly arranged at the bottom of the pipe wall, the outer wall of the second partition block 412 can prevent the pressure flow in the pipe from flowing back, thereby playing a role of check.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and all modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. Stop throttle non return multifunctional valve which characterized in that includes: the valve comprises a hand wheel (1), a rotary screw rod (2), a piston (3) and a valve main body (4), wherein the rotary screw rod (2) is fixedly installed at the central position of the hand wheel (1), the rotary screw rod (2) is rotatably connected with the valve main body (4), and the other end of the rotary screw rod (2) is fixedly connected with the piston (3); a water inlet (41) and a water outlet (42) are formed in two sides of the valve main body (4); a first spacer block (411) is fixedly installed on one side of the water inlet (41), and the first spacer block (411) is hung on the top of the inner wall of the valve main body (4); a second spacer block (412) is fixedly installed on one side of the water outlet (42), and the second spacer block (412) is fixedly installed at the bottom of the inner wall of the valve main body (4); the first spacing block (411) and the second spacing block (412) and the piston (3) jointly act to seal the inner wall of the valve main body (4).

2. The multifunctional valve with the functions of stopping, throttling and checking according to claim 1 is characterized in that an installation groove (43) matched with the rotary screw rod (2) is fixedly installed at the center of the valve body (4).

3. The stop-throttle check multifunctional valve according to claim 2, characterized in that the outer wall of the mounting groove (43) is provided with a thread (413), the thread (413) is matched with the inner wall of the sealing nut (5), and the top of the inner wall of the sealing nut (5) is provided with a sealing element.

4. The multifunctional stop-throttle check valve according to claim 3, characterized in that the ends of the first and second spacers (411, 412) are semicircular, and the piston (3) is closed by fitting with the semicircular ends of the first and second spacers (411, 412).

5. The multifunctional valve with the functions of stopping, throttling and checking as claimed in claim 4, characterized in that the piston (3) and the sealing element are made of flexible materials such as rubber.