CN218468327U

CN218468327U - Adjustable swing check valve

Info

Publication number: CN218468327U
Application number: CN202222736851.5U
Authority: CN
Inventors: 干健; 左亚茹; 张萍; 陶煦
Original assignee: WANJIANG CENTER FOR DEVELOPMENT OF EMERGING INDUSTRIAL TECHNOLOGY
Current assignee: WANJIANG CENTER FOR DEVELOPMENT OF EMERGING INDUSTRIAL TECHNOLOGY
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2023-02-10
Anticipated expiration: 2032-10-18

Abstract

The utility model discloses a swing check valve with adjustable, which comprises a valve body, the inside water conservancy diversion passageway that is provided with of valve body, be provided with valve clack and control pivot in the water conservancy diversion passageway, the valve body outside is provided with regulation control pivot pivoted adjusting part, adjusting part includes driving tube and control tube, control tube detachably installs in the driving tube outside, the driving tube inner wall rotates and is connected with driving sleeve, driving sleeve and control pivot fixed connection, be equipped with the actuating lever in the driving sleeve, the actuating lever slides for the driving tube linearity, the protruding piece of driving rod fixed surface is connected with the drive, the driving sleeve inner wall is opened there is snakelike drive recess. The utility model discloses it can be controlled the inside valve clack of valve body from the outside to adjust the open mode of valve clack.

Description

Adjustable swing check valve

Technical Field

The utility model relates to the technical field of valves, especially, relate to a swing check valve with adjustable.

Background

The rotary check valve is arranged on a one-way conveying pipeline and used for preventing a medium from reversely flowing so as to meet the medium conveying requirement, wherein a valve clack is arranged in the rotary check valve, the valve clack is opened when the medium positively flows, the medium is conveyed, the medium reversely flows, the valve clack is closed under the pressure, and the medium cannot be reversely conveyed at the moment; the valve clack inside the rotary check valve is usually made of metal materials, the weight of the valve clack is large, the opening degree of the valve clack is difficult to control, and when the pressure of a medium is too small, the valve clack cannot be opened at the moment, so that the medium cannot be conveyed; the medium conveying flow in the valve body cannot be controlled; in addition, the rotary check valve is a one-way valve, which cannot intercept and close the positive medium, and usually requires a valve specially for controlling opening and closing to be installed inside the pipeline.

In order to solve the problem that the valve flap is heavy and the opening angle is difficult to control, related researches are in China, such as patent documents: the rotary type intercepting rubber flap check valve (CN 103836231B) is characterized in that an electric driving device is arranged on one side of a valve body and used for assisting a rotating shaft to drive a limiting rod to rotate so as to realize the adjustment of the opening degree of the valve; the device at least has the following defects that firstly, the device only can realize the adjustment of the opening angle of the valve clack, and cannot solve the problems that the valve clack is too heavy to open and the sensitivity is not enough; the valve realizes the adjusting process through an electric control device, and parts in the valve need to be subjected to special anti-corrosion treatment, so that the manufacturing cost is increased; the service life of the electric control system is limited, and the fault rate of the electric control system is increased along with the increase of the service time, so that the requirement is difficult to meet.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the swing check valve with adjustable proposed, it can be controlled the inside valve clack of valve body from the outside to adjust the open mode of valve clack.

In order to realize the purpose, the utility model adopts the following technical scheme:

the utility model provides a swing check valve with adjustable, includes the valve body, the inside water conservancy diversion passageway that is provided with of valve body, be provided with valve clack and control pivot in the water conservancy diversion passageway, the valve body outside is provided with regulation control pivot pivoted adjusting part, adjusting part includes drive tube and control tube, control tube detachably installs in the drive tube outside, the drive tube inner wall rotates and is connected with driving sleeve, driving sleeve and control pivot fixed connection, be equipped with the actuating lever in the driving sleeve, the actuating lever slides for the drive tube is linear, the protruding piece of actuating lever fixed surface is connected with the drive, drive sleeve inner wall is opened there is snakelike drive recess, the drive recess is crooked in succession and with the protruding piece looks adaptation of drive, sealed sliding connection has first control stopper and second control stopper in the control tube, first control stopper and actuating lever fixed connection, the control lever is installed to second control stopper lateral wall, wherein passes through distance between control lever control second control stopper and the first control stopper.

Preferably, one end of the control rod is rotatably connected with the second control plug, and the tail end of the control rod penetrates through the control pipe and is in threaded connection with the control pipe.

Preferably, the control rod end penetrates through the control tube and slides relative to the control tube, and a plurality of limiting through holes are formed in the surface of the control rod.

Preferably, the first control plug and the second control plug are fixedly connected with reinforcing plates, the reinforcing plates are located between the first control plug and the second control plug, and the reinforcing plates are fixedly connected with elastic buffering protrusions.

Preferably, an indicating opening is formed in the side wall of the control tube, an indicating tube is fixedly connected to the outer side of the indicating opening, the indicating tube is communicated with the control tube, an indicating piston is connected in the indicating tube in a sliding mode, and the indicating piston is elastically connected with the inner wall of the indicating tube through a first elastic element.

Preferably, the first control plug side wall is fixedly connected with a connecting rod, the tail end of the connecting rod is detachably and fixedly connected with the driving rod, and a second elastic element is sleeved outside the connecting rod.

Preferably, a first mounting opening and a second mounting opening are formed in two sides of the control pipe respectively, the driving pipe is located in the first mounting opening and is in threaded connection with the first mounting opening, and a cover plate is in threaded connection with the second mounting opening.

Compared with the prior art, the utility model, its beneficial effect does:

the adjusting assembly is arranged to adjust the opening sensitivity of the control rotating shaft and the valve clack, partial gravity of the valve clack can be overcome through negative pressure generated by the first control plug and the second control plug, and the valve clack can be opened quickly; the valve body can be adjusted according to different use environments of the valve body, and the application range is wide; the second control plug is abutted against the first control plug, the rotation of the control rotating shaft and the valve clack can be limited by components such as the first control plug, the driving rod, the driving sleeve and the like, and at the moment, the check valve can be converted into an on-off valve, so that the flow of fluid can be cut off, the function of the valve is increased, and the use requirement is met; the actual production of being convenient for of whole detachably design, the change of later stage spare part has reduced the cost of manufacturing.

Drawings

Fig. 1 is a schematic perspective view of an adjustable swing check valve according to the present invention;

fig. 2 is a schematic top view of an adjustable swing check valve according to the present invention;

FIG. 3 isbase:Sub>A schematic cross-sectional view of the adjustable swing check valve taken along line A-A of the present invention;

fig. 4 is an exploded view of an adjusting assembly of the adjustable swing check valve according to the present invention;

fig. 5 is a schematic side view of the adjustable swing check valve in fig. 4.

In the figure: 1. a valve body; 101. a flow guide channel; 102. a control rotating shaft; 103. a valve flap; 2. a drive tube; 201. a drive sleeve; 2011. a driving groove; 202. a drive rod; 2021. driving the bump; 3. a control tube; 301. a first control plug; 3011. a connecting rod; 302. a second control plug; 3021. a control lever; 4. a reinforcing disc; 401. a buffer protrusion; 5. an indicator tube; 501. indicating the piston.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many different forms other than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention, and it is therefore not to be limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Referring to fig. 1-5, an adjustable swing check valve includes a valve body 1, a flow guide channel 101 is disposed inside the valve body 1, a valve flap 103 and a control rotation shaft 102 are disposed in the flow guide channel 101, wherein a fluid flows through the flow guide channel 101, the valve flap 103 is located inside the flow guide channel 101, and the flow guide channel 101 can be controlled to open and close by rotating to different positions to realize one-way control of the fluid, wherein the valve flap 103 rotates around the control rotation shaft 102.

Wherein, the outside of the valve body 1 is provided with an adjusting component for adjusting the rotation of the control rotating shaft 102, and the rotating state of the control rotating shaft 102 can be adjusted through the adjusting component, thereby realizing the control of the valve clack 103 and the adjusting process; the adjusting assembly comprises a driving pipe 2 and a control pipe 3, the control pipe 3 is detachably mounted on the outer side of the driving pipe 2, the driving pipe 2 is fixed on the outer side of the valve body 1, a driving sleeve 201 is rotatably connected to the inner wall of the driving pipe 2, the tail end of the driving sleeve 201 extends into the valve body 1 and is fixedly connected with the control rotating shaft 102, a driving rod 202 is arranged in the driving sleeve 201, the driving rod 202 slides linearly relative to the driving pipe 2, a driving convex block 2021 is fixedly connected to the surface of the driving rod 202, a snake-shaped driving groove 2011 is formed in the inner wall of the driving sleeve 201, the driving groove 2011 is continuously bent and matched with the driving convex block 2021, the driving convex block 2021 is matched with the driving groove 2011, the driving sleeve 2021 can be controlled to rotate in the driving pipe 2 while the driving rod 202 moves linearly, wherein the inclination angle of the driving groove 2011 is proper, the driving convex block 2021 has a tangential force to drive the driving sleeve 201 to rotate in the moving process, the driving sleeve rotates to drive the control rotating shaft 102, and the control process is realized; subsequently, the rotation of the driving sleeve 201 and the control rotating shaft 102 can be controlled only by controlling the linear movement degree of the driving rod 202, and the rotation sensitivity degree of the control rotating shaft 102 can be adjusted.

In order to realize the control of the driving rod 202 and adjust the moving range and the sensitivity degree thereof, a first control plug 301 and a second control plug 302 are connected in the control tube 3 in a sealing and sliding manner, a sealed chamber is formed between the first control plug 301 and the second control plug 302, the first control plug 301 is fixedly connected with the driving rod 202, a control rod 3021 is installed on the side wall of the second control plug 302, wherein the distance between the second control plug 302 and the first control plug 301 is controlled through the control rod 3021, the second control plug 302 can be limited at different positions according to requirements, when the second control plug 302 is moved away from one end of the first control plug 301, due to the sealed chamber between the two, negative pressure is formed between the two after the movement, the first control plug 301 can have a tendency to move towards the second control plug 302, the driving rod 202 can be driven to have a tendency to move outwards, the driving sleeve 201 can be rotated more sensitively and lightly, the valve flap 103 in the valve body 1 can be opened more lightly, and is suitable for scenes with higher sensitivity degree requirements; the second control plug 302 is moved to one side of the first control plug 301 and is abutted against the first control plug, the movement of the first control plug 301, the second control plug 302 and other components can be limited, at the moment, the driving sleeve 201 and the control rotating shaft 102 cannot rotate, the valve clack 103 cannot be opened, at the moment, the valve can be opened and closed, the channel can be cut off through the rotary check valve, and the functions are enriched; after the second control plug 302 is adjusted to the middle position, the difference of negative pressure degree can be controlled, the trend of the first control plug 301 moving is different, the sensitive degree can be adjusted according to the actual application scene, and various requirements are met.

As an alternative adjustment mode, one end of the control rod 3021 is rotatably connected to the second control plug 302, the end of the control rod 3021 extends through the control tube 3 and is threadedly connected to the control tube, and the adjustment of the position of the second control plug 302 can be completed by rotating the control rod 3021, so as to realize the control process.

As another alternative adjustment mode, the end of the control rod 3021 penetrates through the control tube 3 and slides relative to the control tube, the surface of the control rod 3021 is provided with a plurality of limiting through holes, wherein the control rod 3021 is pulled to be at different positions, and a limiting pin is inserted into the limiting through holes to realize limiting fixation of the control rod 3021, so as to ensure the stability of the limiting and realize the adjustment process; the selection of the limiting mode is more and will not be described herein.

In order to ensure the sealing performance of the first control plug 301 and the second control plug 302 and prolong the service life of parts, the side walls of the first control plug 301 and the second control plug 302 are fixedly connected with reinforcing discs 4, the reinforcing discs 4 are positioned between the first control plug 301 and the second control plug 302, the reinforcing discs 4 positioned on one side can support the first control plug 301 and the second control plug 302, particularly for a piston with a larger size, the stress area can be increased to ensure the normal movement of the piston, the side walls of the reinforcing discs 4 are fixedly connected with elastic buffering bulges 401, and the buffering bulges 401 can play a role of buffering when the first control plug 301 and the second control plug 302 are in contact with each other, so that the rigid collision between the first control plug 301 and the second control plug 302 is avoided, and the surface damage of parts is caused; and when the two are kept off, can let the two contact inseparabler, guarantee the stability that the valve was closed, wherein buffering arch 401 can select to be made by the rubber material.

In order to prompt the sealing state of the inner wall of an operator, an indicating opening is formed in the side wall of the control tube 3, an indicating tube 5 is fixedly connected to the outer side of the indicating opening, the indicating tube 5 is communicated with the control tube 3, an indicating piston 501 is slidably connected in the indicating tube 5, the indicating piston 501 is elastically connected with the inner wall of the indicating tube 5 through a first elastic element, when the first control plug 301 and the second control plug 302 are staggered, the indicating plug is in a negative pressure state, the resistance of the first elastic element can be overcome at the moment to enable the indicating piston 501 to descend, and the operator can visually judge the sealing condition in the control tube 3 by observing the position of the indicating piston 501.

A connecting rod 3011 is fixedly connected to the side wall of the first control plug 301, the tail end of the connecting rod 3011 is detachably and fixedly connected with the driving rod 202, a second elastic element is sleeved outside the connecting rod 3011, the connecting rod 3011 is connected with the driving rod 202, the connecting rod 202 and the driving rod 202 can be conveniently detached, production is convenient, manufacturing cost is reduced, and the second elastic element can apply force to the first control plug 301 to assist the first control plug 301 to slide; the two sides of the control tube 3 are respectively provided with a first mounting port and a second mounting port, the driving tube 2 is positioned in the first mounting port and is in threaded connection with the first mounting port, and the second mounting port is internally and threadedly connected with a cover plate.

The utility model discloses during the use, through control lever 3021 with second control stopper 302 spacing to when keeping away from first control stopper 301 one end, form the negative pressure between first control stopper 301 and the second control stopper 302 this moment, can let first control stopper 301 drive actuating lever 202 have the trend of moving towards the outside, can let driving sleeve 201 and control shaft 102 have the pivoted trend under the cooperation of drive protruding piece 2021 and drive recess 2011, can overcome the partial gravity of valve clack 103, improve the sensitivity that the valve was opened.

Spacing when being close to first control stopper 301 one end through control rod 3021 with second control stopper 302, first control stopper 301 offsets tightly in the second control stopper 302 this moment, and first control stopper 301 is unable to be removed, and driving sleeve 201 and control pivot 102 also can't rotate, and the valve is in the state of normally closed this moment, and the check valve can turn into the start and stop valve this moment, has increased the function of valve.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an adjustable swing check valve, includes valve body (1), valve body (1) inside is provided with water conservancy diversion passageway (101), be provided with valve clack (103) and control pivot (102) in the water conservancy diversion passageway (101), its characterized in that, valve body (1) outside is provided with adjusts control pivot (102) pivoted adjusting part, adjusting part includes driving tube (2) and control tube (3), control tube (3) detachably installs in the driving tube (2) outside, driving tube (2) inner wall rotates and is connected with driving sleeve (201), driving sleeve (201) and control pivot (102) fixed connection, be equipped with actuating lever (202) in driving sleeve (201), actuating lever (202) slide for driving tube (2) linearity, actuating lever (202) fixed surface is connected with drive protruding piece (2011), drive sleeve (201) inner wall is opened snakelike drive recess (2011), drive recess (202) continuous bending and with drive protruding piece (2021) looks adaptation, sealed sliding connection has first control plug (301) and second control plug (302) to control tube (3), control plug (202) and second control plug (202) connection control plug (2021), wherein the distance between the second control plug (302) and the first control plug (301) is controlled by the control rod (3021).

2. An adjustable swing check valve according to claim 1, characterized in that one end of the control rod (3021) is rotatably connected to a second control plug (302), and the end of the control rod (3021) extends through the control tube (3) and is threadedly connected thereto.

3. The adjustable swing check valve as claimed in claim 1, wherein the control rod (3021) has a distal end penetrating the control tube (3) and sliding relatively thereto, and a plurality of limiting through holes are opened on the surface of the control rod (3021).

4. The adjustable swing check valve as claimed in claim 1, wherein the side walls of the first control plug (301) and the second control plug (302) are fixedly connected with a reinforcing disc (4), the reinforcing disc (4) is located between the first control plug and the second control plug, and the side wall of the reinforcing disc (4) is fixedly connected with an elastic buffering protrusion (401).

5. The adjustable swing check valve according to claim 1, wherein an indicating opening is formed in a side wall of the control tube (3), an indicating tube (5) is fixedly connected to an outer side of the indicating opening, the indicating tube (5) is communicated with the control tube (3), an indicating piston (501) is slidably connected in the indicating tube (5), and the indicating piston (501) is elastically connected with an inner wall of the indicating tube (5) through a first elastic element.

6. The adjustable swing check valve as claimed in claim 1, wherein a connecting rod (3011) is fixedly connected to a side wall of the first control plug (301), a distal end of the connecting rod (3011) is detachably and fixedly connected to the driving rod (202), and a second elastic element is sleeved outside the connecting rod (3011).

7. The adjustable swing check valve according to any one of claims 1 to 6, wherein a first mounting opening and a second mounting opening are respectively formed on two sides of the control tube (3), the driving tube (2) is located in the first mounting opening and is in threaded connection with the first mounting opening, and a cover plate is in threaded connection with the second mounting opening.