Stop valve capable of adjusting pressure

Abstract

The utility model relates to the technical field of stop valves, in particular to a pressure-adjustable stop valve which comprises a stop valve body, a vertical plate is fixedly mounted at the top of the stop valve body, a threaded rod is rotatably sleeved at the top of the vertical plate, a connecting sleeve is sleeved on the threaded rod in a threaded manner, the connecting sleeve is rotatably connected with one end of a connecting rod, and the other end of the connecting sleeve is rotatably connected with a sliding plate. The sliding plate is fixedly connected with the top end of the sliding rod, the bottom end of the sliding rod is fixedly connected with a valve clack, a trigger mechanism is arranged in the stop valve body and comprises a light plate, the light plate is fixedly connected with a fixing block through a buffer, a waterproof pressure sensor is installed on one side of the fixing block, and a limiting rod is installed on one side of the buffer. Through cooperation of the inclined plate and the spring and cooperation of the light plate and the buffer, the impact force of water liquid can be buffered, the situation that the sealing effect is affected due to damage to the valve clack caused by long-time impact of water flow is prevented, meanwhile, the threaded rod indirectly drives the valve clack to move through the trigger device, the pressure is adjusted in time, and the precision of the stop valve body is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of stop valve, concretely is a kind of adjustable pressure stop valve. BACKGROUND

[0002] Stop valve is a commonly used valve type, mainly used to control the flow of fluid in the pipeline. It drives the valve stem up and down by rotating hand wheel or handle, and then drives the valve clack (i.e. closing piece) to move up and down in the valve body, to realize the opening, closing or regulation of fluid flow.

[0003] In the prior art, the existing stop valve is damaged under the impact of water for a long time, thereby affecting the sealing effect, and the stop valve cannot be adjusted in time according to the pressure change. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of adjustable pressure stop valve to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of adjustable pressure stop valve, comprising: stop valve body, stop valve body top fixed installation has shell, shell inside both sides are provided with vertical plate, vertical plate top rotation sleeve is equipped with screw rod, vertical plate bottom and stop valve body fixed connection, screw rod is symmetrically screwed with connecting sleeve, connecting sleeve and connecting rod one end rotation connection, connecting sleeve other end and the upper side of slide plate rotation connection, slide plate lower side and slide bar top end fixed connection, slide bar bottom end fixed connection has valve clack, slide bar sliding sleeve is set in stop valve body inside;

[0006] Stop valve body inside is provided with trigger mechanism, trigger mechanism includes lightweight plate, lightweight plate one side and bumper one end fixed connection, bumper other end and fixed block fixed connection, fixed block one side fixed installation has waterproof pressure sensor, bumper one side fixed installation has limit rod.

[0007] Preferably, the top surface of the shell is fixedly connected with a controller, and the controller is provided with an anti-rust motor on one side.

[0008] Preferably, the controller and the anti-rust motor are electrically connected, the waterproof pressure sensor and the controller are electrically connected, and the screw rod is provided with two threads with opposite rotation directions.

[0009] Preferably, the output end of the anti-rust motor penetrates the shell and is fixedly connected with one end of the screw rod, and the upper surface of the slide plate is fixedly connected with a connecting seat.

[0010] Preferably, the connecting seat is rotatably connected with one end of the connecting rod through a pin shaft, the other end of the connecting rod is rotatably connected with the connecting sleeve through a pin shaft, the slide plate is slidably connected with the vertical plate, the slide rod is slidably sleeved in the limiting sleeve, and the limiting sleeve is fixedly connected with the top of the stop valve body.

[0011] Preferably, the stop valve body is internally provided with an inclined plate, and the inclined plate is arranged in a circumferential array.

[0012] Preferably, the buffer is symmetrically arranged relative to the limiting rod, and the fixed block is fixedly connected with the inner wall of the stop valve body.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] Through the cooperation of the circumferentially arranged inclined plate, the spring and the light plate and the buffer, the impact force of water flow can be buffered, the valve disc is prevented from being damaged due to long-time impact of water flow, and thus the sealing effect is affected, at the same time, through the cooperation of the controller, the waterproof pressure sensor and the anti-rust motor, the threaded rod indirectly drives the valve disc to move, the pressure is timely adjusted, and the precision of the stop valve body is increased. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model;

[0016] Figure 2 It is a whole structure top view schematic view of the utility model;

[0017] Figure 3 It is an internal structure schematic view of the utility model;

[0018] Figure 4 It is an internal structure top view schematic view of the utility model;

[0019] Figure 5 It is a whole structure sectional view schematic view of the utility model.

[0020] In the drawing: 1, stop valve body; 2, shell; 3, vertical plate; 4, threaded rod; 5, connecting sleeve; 6, connecting rod; 7, slide rod; 8, valve disc; 9, trigger mechanism; 10, light plate; 11, buffer; 12, fixed block; 13, waterproof pressure sensor; 14, limiting rod; 15, controller; 16, anti-rust motor; 17, connecting seat; 18, limiting sleeve; 19, inclined plate; 20, spring; 21, slide plate. DETAILED DESCRIPTION

[0021] In order to make the utility model purposes, technical solutions carry out clearly, complete description, and the advantages are clearer and more obvious, the following will be further detailed with the utility model embodiments of the drawings.The specific embodiments described herein are part of the embodiments of the utility model, rather than all the embodiments, only to explain the embodiments of the utility model, and do not limit the embodiments of the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor are within the scope of the utility model.

[0022] Embodiment one: please refer to Figures 1-4 The utility model provides a kind of technical scheme: a pressure-adjustable stop valve, comprising: stop valve body 1, stop valve body 1 top fixed installation has shell 2, shell 2 inside both sides are provided with vertical plate 3, vertical plate 3 top rotationally covers screw rod 4, vertical plate 3 is stably supported to screw rod 4, vertical plate 3 bottom and stop valve body 1 are fixedly connected, screw rod 4 is symmetrically screwed with connecting sleeve 5, connecting sleeve 5 is rotationally connected with connecting rod 6 one end, connecting sleeve 5 other end is rotationally connected with slide plate 21 upper side, slide plate 21 lower side is fixedly connected with slide bar 7 top end, slide bar 7 bottom end is fixedly connected with valve flap 8, slide bar 7 slidingly covers in stop valve body 1, stop valve body 1 inside is provided with trigger mechanism 9, trigger mechanism 9 includes lightweight plate 10, lightweight plate 10 one side is fixedly connected with bumper 11 one end, bumper 11 other end is fixedly connected with fixed block 12, fixed block 12 one side is fixedly installed with waterproof pressure sensor 13, bumper 11 one side is fixedly installed with limit rod 14.

[0023] When using, external water flows into stop valve body 1, and the impact force of liquid is buffered by the cooperation of lightweight plate 10 and bumper 11, when the impact force of liquid is larger, lightweight plate 10 is pressed to move to the direction close to fixed block 12, so that lightweight plate 10 drives limit rod 14 to move, at this time, bumper 11 is compressed, limit rod 14 triggers waterproof pressure sensor 13, waterproof pressure sensor 13 sends signal to controller 15, and controller 15 indirectly drives screw rod 4 to rotate, so that screw rod 4 drives connecting sleeve 5 screwed thereon to move back, under the connection of connecting rod 6, slide plate 21 is driven to slide between vertical plate 3, so that slide plate 21 drives slide bar 7 to move upwards, and slide bar 7 in turn drives valve flap 8 fixedly connected at the bottom to move upwards, so that the flow can be increased, and the pressure can be reduced, and then waterproof pressure sensor 13 sends signal to controller 15, and controller 15 indirectly controls screw rod 4 to rotate reversely, so that the flow can be reduced, and then the pressure is adjusted.

[0024] The embodiment two is based on the embodiment one, the top surface of the shell 2 is fixedly connected with the controller 15, the controller 15 is provided with the anti-rust motor 16 on one side, the anti-rust motor 16 is fixedly connected between the shell 2, the shell 2 is fixedly covered on the top of the stop valve body 1, so that the anti-rust motor 16 and the controller 15 are fixed, the controller 15 and the anti-rust motor 16 are electrically connected, the waterproof pressure sensor 13 and the controller 15 are electrically connected, the threaded rod 4 is provided with two threads with opposite rotation directions, the electrical connection between the controller 15, the anti-rust motor 16 and the waterproof pressure sensor 13 is convenient for indirectly adjusting the pressure, the output end of the anti-rust motor 16 penetrates the shell 2 and is fixedly connected with one end of the threaded rod 4, the connecting seat 17 is fixedly connected to the upper surface of the sliding plate 21, the connecting seat 17 is symmetrically arranged about the upper surface of the sliding plate 21, the connecting seat 17 and one end of the connecting rod 6 are rotatably connected through the pin shaft, the other end of the connecting rod 6 is rotatably connected with the connecting sleeve 5 through the pin shaft, the sliding plate 21 is slidably connected with the vertical plate 3 on both sides, the sliding plate 21 is limited by the vertical plate 3, so that the sliding plate 21 is preliminarily limited to the slide rod 7, the slide rod 7 is slidably sleeved in the limiting sleeve 18, the limiting sleeve 18 is fixedly connected with the top of the stop valve body 1, and the limiting sleeve 18 and the slide rod 7 are slidably connected, so as to limit the slide rod 7 again, and the stability of the slide rod 7 is ensured.

[0025] When the waterproof pressure sensor 13 transmits the signal to the controller 15, the controller 15 starts the anti-rust motor 16, and the anti-rust motor 16 drives the threaded rod 4 fixedly connected with the output end to rotate. The threaded rod 4 is provided with two threads with opposite rotation directions, so that when the flow needs to be increased, the connecting sleeve 5 symmetrically sleeved on the threaded rod 4 moves away from the connecting seat 17 under the rotation cooperation of the connecting rod 6, the pin shaft and the connecting seat 17, so that the sliding plate 21 moves upward, and the sliding plate 21 slides under the limitation of the vertical plate 3, so that the sliding plate 21 drives the slide rod 7 to slide upward under the limitation of the limiting sleeve 18, so that the valve disc 8 moves upward, and the flow is increased. When the flow needs to be reduced, the anti-rust motor 16 is reversely driven through the controller 15, and the control of the pressure is realized.

[0026] The embodiment three is based on the embodiment two, the inclined plate 19 is arranged in the input end of the stop valve body 1, and the inclined plate 19 is arranged in a circumferential array. The inclined plate 19 is fixedly connected between the input end of the stop valve body 1 and the spring 20. The arrangement of the inclined plate 19 is conducive to reducing the impact of the liquid, and the spring 20 is convenient for resetting the inclined plate 19. The bumper 11 is symmetrically arranged about the limiting rod 14, and the fixed block 12 is fixedly connected between the inner wall of the stop valve body 1.

[0027] The whole trigger mechanism 9 is supported by the fixed block 12, when liquid enters into the input end of the stop valve body 1, the impact force of the liquid is preliminarily buffered by the cooperation of the circumferential array arranged inclined plate 19 and the spring 20, the impact of the water liquid on the stop valve body 1 is reduced, so as to reduce the damage to the valve disc 8, prolong the service life of the whole stop valve body 1.

[0028] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pressure-adjustable stop valve comprising a stop valve body (1), characterized in that: The top of the stop valve body (1) is fixedly provided with a shell (2), both sides of the inside of the shell (2) are provided with vertical plates (3), the top of the vertical plate (3) is rotatably provided with a threaded rod (4), the bottom of the vertical plate (3) is fixedly connected with the stop valve body (1), the threaded rod (4) is symmetrically and threadedly provided with a connecting sleeve (5), one end of the connecting sleeve (5) is rotatably connected with a connecting rod (6), the other end of the connecting sleeve (5) is rotatably connected with the upper side of a sliding plate (21), the lower side of the sliding plate (21) is fixedly connected with the top end of a sliding rod (7), the bottom end of the sliding rod (7) is fixedly connected with a valve clack (8), and the sliding rod (7) is slidably sleeved in the stop valve body (1); The inside of the stop valve body (1) is provided with a trigger mechanism (9), the trigger mechanism (9) comprises a lightweight plate (10), one side of the lightweight plate (10) is fixedly connected with one end of a buffer (11), the other end of the buffer (11) is fixedly connected with a fixed block (12), one side of the fixed block (12) is fixedly provided with a waterproof pressure sensor (13), and one side of the buffer (11) is fixedly provided with a limiting rod (14).

2. A pressure-adjustable stop valve according to claim 1, characterized in that: The top upper surface of the shell (2) is fixedly connected with a controller (15), one side of the controller (15) is provided with a rust-proof motor (16), and the rust-proof motor (16) is fixedly connected with the shell (2).

3. A pressure-adjustable stop valve according to claim 2, characterized in that: The controller (15) and the rust-proof motor (16) are electrically connected, the waterproof pressure sensor (13) and the controller (15) are electrically connected, and the threaded rod (4) is provided with two threads with opposite rotation directions.

4. A pressure-adjustable stop valve according to claim 3, characterized in that: The output end of the rust-proof motor (16) penetrates the shell (2) and is fixedly connected with one end of the threaded rod (4), and the upper surface of the sliding plate (21) is fixedly connected with a connecting seat (17).

5. A pressure-adjustable stop valve according to claim 4, characterized in that: The connecting seat (17) and one end of the connecting rod (6) are rotatably connected through a pin shaft, the other end of the connecting rod (6) is rotatably connected with the connecting sleeve (5) through a pin shaft, and the two sides of the sliding plate (21) are slidably connected with the vertical plates (3), the sliding rod (7) is slidably sleeved in a limiting sleeve (18), and the limiting sleeve (18) is fixedly connected with the top of the stop valve body (1).

6. A pressure-adjustable stop valve according to claim 5, characterized in that: The inside of the input end of the stop valve body (1) is provided with inclined plates (19), and the inclined plates (19) are arranged in a circumferential array, and the inclined plates (19) and the inner wall of the input end of the stop valve body (1) are fixedly connected through springs (20).

7. A pressure adjustable stop valve according to claim 1, wherein: The buffer (11) is symmetrically arranged about the limiting rod (14), and the fixed block (12) is fixedly connected with the inner wall of the stop valve body (1).

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