CN218934884U - Overflow valve elastic support structure - Google Patents

Abstract

The utility model belongs to the technical field of overflow valves, in particular to an elastic supporting structure of an overflow valve, which comprises a valve body, wherein an inlet is formed in the bottom end of the valve body, a first outlet and a second outlet are formed in the side wall of the valve body, a limiting cone is arranged in the valve body, a connecting rod is fixedly connected to the top end of the limiting cone, a threaded block is fixedly connected to the side wall of the connecting rod, the threaded block is in threaded connection with the inner wall of the valve body, a positioning plate is slidably connected to the inner wall of the valve body, a spring is arranged between the threaded block and the positioning plate, and the threaded block continuously rises when the pressure is increased through the cooperation of the threaded block and the valve body, so that the space of the valve body below the threaded block is gradually increased, the liquid discharged by a system can be increased and stored, the pressure release capacity of the system is enhanced, the second outlet can be matched with the first outlet for pressure release capacity, the pressure release capacity is further increased, and accidents are prevented.

Description

Overflow valve elastic support structure

Technical Field

The utility model belongs to the technical field of overflow valves, and particularly relates to an elastic supporting structure of an overflow valve.

Background

The relief valve is one of pressure control valves, and is widely applied to various pressure systems, the relief valve plays a safety protection role in the system, when the pressure of the system exceeds a specified value, the relief valve is propped open to discharge a part of liquid in the system to achieve the pressure relief effect, so that the system is ensured not to have accidents due to overhigh pressure, but in actual use, the relief valve is propped open by the liquid when the pressure of the system is overhigh, the liquid enters into an internal cavity of the relief valve, and then the liquid is discharged through a discharge hole of the relief valve, but the discharge hole of the relief valve is fixed in size, so that the discharge amount of the relief valve is limited at the same time, and the inside of the relief valve is full of the liquid along with the continuous increase of the pressure of the system, so that the pressure relief can be insufficient for the inside of the system, and accidents are easy to occur.

Disclosure of Invention

The utility model provides an elastic supporting structure of an overflow valve, which has the characteristic of increasing the pressure relief capacity of the existing overflow valve.

The utility model provides the following technical scheme: including the valve body, the inlet port has been seted up to the valve body bottom, first export and second export have been seted up to the valve body lateral wall, be equipped with spacing awl in the valve body, spacing awl top fixedly connected with connecting rod, connecting rod lateral wall fixedly connected with thread block, the thread block with valve body inner wall threaded connection, valve body inner wall sliding connection has the locating plate, the thread block with be equipped with the spring between the locating plate.

The valve body is characterized in that an adjusting bolt for driving the positioning plate is connected with the top end of the valve body in a threaded mode, a plurality of sliding grooves are formed in the inner wall of the valve body, and a plurality of sliding blocks which are in sliding connection with the corresponding sliding grooves are fixedly connected with the side wall of the positioning plate.

Wherein, spring both ends all fixedly connected with stripper plate, wherein the below the stripper plate rotate connect in the connecting rod top, another the stripper plate rotate connect in the locating plate bottom.

Wherein, two extrusion plate one end is all rotated and is connected with a plurality of ball, wherein a plurality of the ball with screw thread piece top sliding connection, wherein a plurality of the ball sliding connection in the locating plate bottom.

The valve body is characterized in that a sampling tube is connected to the side wall of the valve body through threads, the sampling tube is communicated with the inner space of the valve body, and a one-way valve is arranged on the inner wall of the sampling tube.

The beneficial effects of the utility model are as follows: through the cooperation of screw thread piece and valve body, the continuous rising of screw thread piece when pressure increases to make the space of screw thread piece below valve body increase gradually, thereby can increase the storage to system's exhaust liquid, strengthen the ability of pressure release, compensatied only and only rely on the first export to carry out the not enough that the pressure release brought, through the cooperation of first export with the second export use, thereby make the second export can cooperate first export to carry out the pressure release to the system, further increase the ability of pressure release, prevent the emergence accident.

None of the parts of the device are the same as or can be implemented using prior art.

Drawings

FIG. 1 is a schematic cross-sectional elevation view of the present utility model;

FIG. 2 is a schematic diagram of a cross-sectional elevation view of the present utility model in motion;

FIG. 3 is an enlarged view of portion A of FIG. 1;

fig. 4 is a schematic cross-sectional front view of the valve body of the present utility model.

In the figure: 1. a valve body; 11. an access port; 12. a first outlet; 13. a second outlet; 14. a sliding groove; 2. a limiting cone; 21. a connecting rod; 22. a screw block; 23. a spring; 24. an extrusion plate; 241. a ball; 3. a positioning plate; 31. an adjusting bolt; 32. a sliding block; 4. a sampling tube; 41. a one-way valve.

Detailed Description

Referring to fig. 1-4, the present utility model provides the following technical solutions: including valve body 1, inlet port 11 has been seted up to valve body 1 bottom, and first export 12 and second export 13 have been seted up to valve body 1 lateral wall, are equipped with spacing awl 2 in the valve body 1, and spacing awl 2 top fixedly connected with connecting rod 21, connecting rod 21 lateral wall fixedly connected with screw thread piece 22, screw thread piece 22 and valve body 1 inner wall threaded connection, valve body 1 inner wall sliding connection has locating plate 3, is equipped with spring 23 between screw thread piece 22 and the locating plate 3.

In this embodiment: the valve body 1 is the outside protective housing of overflow valve, the inlet port 11 of valve body 1 below is connected with pressure system, spacing awl 2, connecting rod 21 and screw thread piece 22 are the case that carries out the shutoff to inlet port 11, and the valve body 1 inner space of screw thread piece 22 below is initial release storehouse, thereby the space in valve body 1 inner space of screw thread piece 22 top is reserved pressure release storehouse, thereby through the continuous rising in screw thread piece 22 messenger initial pressure release storehouse progressively increases, thereby can increase the storage to the liquid of system discharge, strengthen the ability of pressure release, first export 12 is first pressure release mouth, second export 13 is second pressure release mouth, the system enters into the inside liquid of valve body 1 and firstly discharges through first export 12, when the pressure of system continuously increases, first export 12 is to the inside liquid discharge volume of valve body 1 gradually can not reach the demand, then the screw thread piece 22 moves down in the high-pressure state, screw thread piece 22 rotates along the screw track of self and 11 inner wall, thereby make screw thread piece 22 upwards slide, when second export 13 is in screw thread piece 22 below, the ability of pressure release 13, thereby the second export 13 can be in the second export 13, thereby the second export 13 can be in order to prevent that the second export from taking place the accident from taking place, further, the second export 13 can be in the first pressure release mouth, further can be in order to carry out the second export 13, can be in order to be in the accident.

The top end of the valve body 1 is in threaded connection with an adjusting bolt 31 for driving the positioning plate 3, a plurality of sliding grooves 14 are formed in the inner wall of the valve body 1, and a plurality of sliding blocks 32 which are in sliding connection with the corresponding sliding grooves 14 are fixedly connected to the side wall of the positioning plate 3; the locating plate 3 carries out elasticity spacing to the screw thread piece 22 through the spring 23 to, adjust bolt 31 can adjust the position of locating plate 3, through rotatory adjusting bolt 31, make spring 23 can promote locating plate 3 upwards slide, thereby make spring 23 to screw thread piece 22's elastic support ability change, realize the regulation to the pressure release ability of device, when locating plate 3 upwards slides, locating plate 3 drives slider 32 upwards slide, the sliding tray 14 carries out slip direction and spacing to slider 32, prevent that locating plate 3 from taking place the condition of slope and skew from taking place.

The two ends of the spring 23 are fixedly connected with the extrusion plates 24, wherein the lower extrusion plate 24 is rotationally connected with the top end of the connecting rod 21, and the other extrusion plate 24 is rotationally connected with the bottom end of the positioning plate 3; when the screw block 22 is connected with the spring 23 through the pressing plate 24, the spring 23 is driven to rotate by the pressing plate 24 to be capable of responding to the rotation of the screw block 22, so that the elastic performance of the spring 23 is prevented from being disturbed by the rotation of the screw block 22.

One end of each extrusion plate 24 is rotatably connected with a plurality of balls 241, wherein the plurality of balls 241 are slidably connected with the top end of the threaded block 22, and the plurality of balls 241 are slidably connected with the bottom end of the positioning plate 3; when the screw block 22 and the spring 23 relatively rotate, the balls 241 can reduce friction resistance between the spring 23 and the screw block 22.

The side wall of the valve body 1 is in threaded connection with a sampling tube 4, the sampling tube 4 is communicated with the inner space of the valve body 1, and a one-way valve 41 is arranged on the inner wall of the sampling tube 4; the sampling tube 4 is for collecting the inside liquid of valve body 1 to can make in the sampling tube 4 can take out valve body 1 through sampling tube 4 and valve body 1 threaded connection, when screw thread piece 22 upward movement, the one end opening and the inside intercommunication in initial pressure release storehouse of sampling tube 4, thereby make liquid can flow into sampling tube 4 inside, simultaneously, check valve 41 carries out spacing to the inside liquid of entering sampling tube 4 and prevents the backward flow, thereby need not to take a sample from the system, realized taking a sample the liquid from outside.

The working principle and the using flow of the utility model are as follows: when the device is used, the pressure in the system is increased to enable liquid to be extruded and pushed to the limiting cone 2, the limiting cone 2 drives the connecting rod 21 to slide upwards, the connecting rod 21 drives the threaded block 22 to slide upwards, so that the opening of the inlet 11 is opened, then liquid is discharged through the first outlet 12, the threaded block 22 is pushed up under the state of high pressure of the liquid along with the continuous increase of the pressure of the system, the threaded block 22 rotates along with the threaded track of the inner wall of the inlet 11, so that the threaded block 22 can slide upwards, the space of an initial pressure release bin is gradually increased through the continuous rising of the threaded block 22, the liquid discharged by the system can be increased and stored, the pressure release capacity is enhanced, when the second outlet 13 is positioned below the threaded block 22, the opening of the second outlet 13 is positioned in the initial pressure release bin, so that the liquid can be discharged from the second outlet 13, the second outlet 13 can be matched with the first outlet 12 to release the pressure of the system, the pressure release capacity is increased, accidents are prevented, and the liquid can enter the sampling tube 4 to be conveniently sampled.

Claims (5)

1. An overflow valve elastic support structure, its characterized in that: including valve body (1), inlet port (11) have been seted up to valve body (1) bottom, first export (12) and second export (13) have been seted up to valve body (1) lateral wall, be equipped with spacing awl (2) in valve body (1), spacing awl (2) top fixedly connected with connecting rod (21), connecting rod (21) lateral wall fixedly connected with screw thread piece (22), screw thread piece (22) with valve body (1) inner wall threaded connection, valve body (1) inner wall sliding connection has locating plate (3), screw thread piece (22) with be equipped with spring (23) between locating plate (3).

2. The relief valve spring support structure of claim 1, wherein: the valve is characterized in that an adjusting bolt (31) for driving the positioning plate (3) is connected to the top end of the valve body (1) in a threaded mode, a plurality of sliding grooves (14) are formed in the inner wall of the valve body (1), and a plurality of sliding blocks (32) which are in sliding connection with the corresponding sliding grooves (14) are fixedly connected to the side wall of the positioning plate (3).

3. The relief valve spring support structure of claim 1, wherein: the spring (23) both ends are all fixedly connected with stripper plate (24), wherein below stripper plate (24) rotate connect in connecting rod (21) top, another stripper plate (24) rotate connect in locating plate (3) bottom.

4. A relief valve spring support structure according to claim 3, wherein: two stripper plate (24) one end all rotates and is connected with a plurality of ball (241), and wherein a plurality of ball (241) with screw thread piece (22) top sliding connection, wherein a plurality of ball (241) sliding connection in locating plate (3) bottom.

5. The relief valve spring support structure of claim 1, wherein: the valve body (1) lateral wall threaded connection has sampling tube (4), sampling tube (4) with valve body (1) inner space intercommunication, check valve (41) are installed to sampling tube (4) inner wall.

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