CN217272208U

CN217272208U - Negative pressure valve convenient to dismouting

Info

Publication number: CN217272208U
Application number: CN202221190241.3U
Authority: CN
Inventors: 严格; 欧吉林; 尹峡; 戴静
Original assignee: Chongqing Xiangzhong Gas Equipment Co ltd
Current assignee: Chongqing Xiangzhong Gas Equipment Co ltd
Priority date: 2022-05-17
Filing date: 2022-05-17
Publication date: 2022-08-23
Anticipated expiration: 2032-05-17

Abstract

The utility model belongs to the technical field of negative pressure valve, and discloses a negative pressure valve convenient for disassembly and assembly, which comprises a first valve body, a first connector is installed at the end part of the first valve body, a tube head is installed at the other end of the first valve body, a first spring, a second spring, a sliding block and a fixed block are installed inside the first valve body, one end of the first spring and one end of the second spring are connected on the inner wall of the first valve body, the other end of the first spring is connected at one side of the sliding block, the other end of the second spring is connected at the other side of the sliding block, the fixed block is installed at the top of the sliding block, a second valve body is installed on the first connector, the utility model is provided with the first spring, the second spring and the sliding block, and the fluid pushes the sliding block to move to stretch or contract the spring according to the comparison of the pressure intensity in the device and the required pressure intensity during pressure adjustment, thereby balancing the pressure in the device and having good pressure regulating effect.

Description

Negative pressure valve convenient to dismouting

Technical Field

The utility model belongs to the technical field of the negative pressure valve, concretely relates to negative pressure valve convenient to dismouting.

Background

The pressure valve is a control part in a fluid conveying system, has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like, and can be used for controlling the flow of air, water, steam and various corrosive media, such as slurry, oil products, liquid metal, radioactive media and other various types of fluids.

But negative pressure valve on the existing market has some problems, and current partial negative pressure valve pressure regulating's ability is weaker, influences the pressure regulating effect, and in addition, current partial negative pressure valve is not convenient for dismantle, and it is more troublesome to change.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a negative pressure valve convenient to dismouting to the ability of solving the current partial negative pressure valve regulated pressure that proposes in the above-mentioned background art is weaker, influences the problem of pressure regulating effect, and, current partial negative pressure valve is not convenient for dismantle, changes more troublesome problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a negative pressure valve convenient to dismouting, includes first valve body, first connector is installed to the tip of first valve body, the tube head is installed to the other end of first valve body, the internally mounted of first valve body has first spring, second spring, slider and fixed block, the one end of first spring and the one end of second spring are connected on the inner wall of first valve body, one side at the slider is connected to the other end of first spring, the opposite side at the slider is connected to the other end of second spring, the top at the slider is installed to the fixed block.

Preferably, install the second valve body on the first connector, the one end of second valve body is equipped with first connecting hole, the second connector is installed to the other end of second valve body, the inside of second valve body is equipped with places the room, the internally mounted who places the room has the disk seat, the top of disk seat is connected with the second valve head.

Preferably, the top of the fixed block is connected with the top end of the inner wall of the first valve body, and the bottom of the sliding block is in contact with the bottom end of the inner wall of the first valve body.

Preferably, the top of the sliding block is provided with a limiting hole, the top of the first valve body is screwed with the first valve head, and the first valve head penetrates through the first valve body and the fixing block.

Preferably, the first connection head is provided with a thread, the first connection hole is provided with a thread port, and the first connection head and the first connection hole are screwed together.

Preferably, the inner side surface of the first spring and the inner side surface of the second spring are provided with limiting columns, and one end of each limiting column is connected to the inner wall of the first valve body.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses set up first spring, second spring and slider etc. when the pressure regulating, according to pressure and required pressure ratio in the device, the fluid promotes the slider and removes, makes the spring tensile or shrink, and then pressure in the balancing unit, has good pressure regulating effect.

(2) The utility model discloses set up second valve body, second valve head and disk seat etc. when carrying out the change of negative pressure valve, rotate the second valve head and make the disk seat plug up the passageway, make the fluid can not get into first valve body, from the first connecting hole department of second valve body the change of first valve body in order to accomplish the negative pressure valve of screwing off again, change process convenient and fast, it is efficient.

Drawings

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

FIG. 2 is an external view of the present invention;

FIG. 3 is a schematic view of the valve seat of the present invention during rotation;

in the figure: 1. a first valve body; 2. a first connector; 3. a pipe head; 4. a limiting column; 5. a first spring; 6. a second spring; 7. a slider; 8. a fixed block; 9. a first valve head; 10. a limiting hole; 11. a second valve body; 12. a second connector; 13. a first connection hole; 14. a placing chamber; 15. a valve seat; 16. a second valve head.

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. 1-3, the present invention provides the following technical solutions: a negative pressure valve convenient to disassemble and assemble comprises a first valve body 1, a first connecting head 2 is installed at the end part of the first valve body 1, a pipe head 3 is installed at the other end of the first valve body 1, a first spring 5, a second spring 6, a sliding block 7 and a fixed block 8 are installed inside the first valve body 1, one end of the first spring 5 and one end of the second spring 6 are connected to the inner wall of the first valve body 1, the other end of the first spring 5 is connected to one side of the sliding block 7, the other end of the second spring 6 is connected to the other side of the sliding block 7, the fixed block 8 is installed at the top of the sliding block 7, specifically, when pressure is adjusted, according to comparison between the pressure in the device and the external pressure, when the pressure in the device is larger, fluid enters the first valve body 1 through a second valve body 11, the sliding block 7 is pushed to move rightwards, the first spring 5 is stretched, the second spring 6 contracts, and the fluid in the device flows out from the pipe head 3, when the internal pressure and the external pressure are gradually balanced, the position of the sliding block 7 is restored under the action of the repulsive force of the spring, and similarly, when the pressure in the device is lower, the reverse process of the steps is carried out in the negative pressure valve.

Further, install the second valve body 11 on the first connector 2, the one end of the second valve body 11 is equipped with first connecting hole 13, second connector 12 is installed to the other end of the second valve body 11, the inside of the second valve body 11 is equipped with places room 14, the internally mounted of placing room 14 has valve seat 15, the top of valve seat 15 is connected with second valve head 16, specifically, when carrying out the change of negative pressure valve, rotate second valve head 16 and make valve seat 15 block up the inside passageway of the second valve body 11, make the fluid can not get into first valve body 1, again from the first connecting hole 13 department of the second valve body 11 first valve body 1 of unscrewing in order to accomplish the change of negative pressure valve.

Further, the top of the fixed block 8 is connected with the top end of the inner wall of the first valve body 1, and the bottom of the sliding block 7 is in contact with the bottom end of the inner wall of the first valve body 1, specifically, when the fixed block 8 and the sliding block 7 are in the same vertical plane, the fluid can be blocked from passing through, and when the fixed block 8 and the sliding block 7 are not in the same vertical plane, the fluid can pass through the first valve body 1.

Further, spacing hole 10 has been seted up at the top of slider 7, and first valve head 9 is installed in the top of first valve body 1 closure soon, and first valve head 9 closure is passed first valve body 1 and fixed block 8, specifically, closes the negative pressure valve when first valve head 9 and spacing hole 10 are used for not using.

Further, be equipped with the screw thread on the first connector 2, be equipped with the screw thread mouth on the first connecting hole 13, first connector 2 closes with first connecting hole 13 soon mutually, and specifically, the screw thread makes first valve body 1 and second valve body 11 be connected inseparabler with the screw hole.

Further, spacing post 4 is installed to the medial surface of first spring 5 and the medial surface of second spring 6, and the one end of spacing post 4 is connected in the inner wall of first valve body 1, and specifically, spacing post 4 makes the bottom of first spring 5 and second spring 6 can not produce swing by a relatively large margin, and then makes slider 7 and fixed block 8 be difficult for the dislocation.

The utility model discloses a theory of operation and use flow: when the utility model is used, a user firstly screws in the second connector 12 on a required device to install the second valve body 11, then screws in the first connector 2 at the first connecting hole 13 on the second valve body 11 to install the first valve body 1, connects the pipe head 3 on the first valve body 1 to the outside atmosphere or the port of a press machine, when the pressure of the negative pressure valve is adjusted, according to the comparison between the pressure in the device and the outside pressure, when the pressure in the device is larger, the fluid enters the first valve body 1 through the second valve body 11, pushes the slider 7 to move rightwards, so that the first spring 5 is stretched, the second spring 6 is contracted, the fluid in the device flows out from the pipe head 3, when the internal and external pressures are gradually balanced, the position of the slider 7 is restored under the repulsive force of the spring, and in the same way, when the pressure in the device is smaller, the reverse process of the steps is carried out in the negative pressure valve, when the negative pressure valve is not used, the negative pressure valve is screwed in the limiting hole 10 of the first valve head 9 to close the negative pressure valve, when the negative pressure valve needs to be replaced, the second valve head 16 is rotated to enable the valve seat 15 to block the channel inside the second valve body 11, so that fluid cannot enter the first valve body 1, and then the first valve body 1 is unscrewed from the first connecting hole 13 of the second valve body 11 to complete replacement of the negative pressure valve.

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 negative pressure valve convenient to dismouting which characterized in that: including first valve body (1), first connector (2) are installed to the tip of first valve body (1), tube head (3) are installed to the other end of first valve body (1), the internally mounted of first valve body (1) has first spring (5), second spring (6), slider (7) and fixed block (8), the one end of first spring (5) and the one end of second spring (6) are connected on the inner wall of first valve body (1), one side in slider (7) is connected to the other end of first spring (5), the opposite side in slider (7) is connected to the other end of second spring (6), the top in slider (7) is installed in fixed block (8).

2. The negative pressure valve convenient to disassemble and assemble according to claim 1, wherein: install second valve body (11) on first connector (2), the one end of second valve body (11) is equipped with first connecting hole (13), second connector (12) are installed to the other end of second valve body (11), the inside of second valve body (11) is equipped with places room (14), the internally mounted of placing room (14) has disk seat (15), the top of disk seat (15) is connected with second valve head (16).

3. The negative pressure valve convenient to disassemble and assemble as claimed in claim 2, wherein: the top of fixed block (8) links to each other with the inner wall top of first valve body (1), the bottom of slider (7) contacts with the inner wall bottom of first valve body (1).

4. The negative pressure valve convenient to disassemble and assemble according to claim 3, wherein: spacing hole (10) have been seted up at the top of slider (7), first valve head (9) are installed in the top of first valve body (1) closure soon, first valve head (9) are closed soon and are passed first valve body (1) and fixed block (8).

5. The negative pressure valve convenient to disassemble and assemble according to claim 4, wherein: the connecting structure is characterized in that threads are arranged on the first connecting head (2), a thread opening is arranged on the first connecting hole (13), and the first connecting head (2) is screwed with the first connecting hole (13).

6. The negative pressure valve convenient to disassemble and assemble according to claim 5, wherein: spacing post (4) are installed to the medial surface of first spring (5) and the medial surface of second spring (6), the inner wall in first valve body (1) is connected to the one end of spacing post (4).