CN210088087U

CN210088087U - Pressure relief valve

Info

Publication number: CN210088087U
Application number: CN201920544125.9U
Authority: CN
Inventors: 代永刚; 李桂玲; 代凯杰
Original assignee: Yunnan Qixiong New Energy Gas Co Ltd
Current assignee: Yunnan Qixiong New Energy Gas Co Ltd
Priority date: 2019-04-20
Filing date: 2019-04-20
Publication date: 2020-02-18
Anticipated expiration: 2029-04-20

Abstract

The utility model discloses a pressure relief valve, which comprises a valve body, the inner chamber fixedly connected with ring of valve body, the inner wall of valve body just is located the top fixedly connected with horizontal pole of ring, the one end fixedly connected with plectane of valve body inner wall is kept away from to the horizontal pole, the bottom fixedly connected with sleeve pipe of plectane, the first spring of top fixedly connected with of sleeve pipe inner chamber, the bottom fixedly connected with extrusion stem of first spring, the bottom of extrusion stem extends to sheathed tube outside and fixedly connected with closing plate. The utility model discloses it is sealed to possess through two spring extrusion closing plates, and the leakproofness is good, and the advantage of the manual pressure release of being convenient for has solved current relief valve and has mostly only a spring extrusion closing plate to seal, and is sealed poor in effect, can produce the phenomenon of leaking after using for a long time, has reduced the leakproofness of relief valve, is not convenient for carry out manual pressure release simultaneously, can not be better control pipeline internal pressure, the problem that people used not convenient for.

Description

Pressure relief valve

Technical Field

The utility model relates to a pressure relief valve technical field specifically is a pressure relief valve.

Background

The pressure relief valve can be automatically opened and closed according to the working pressure of the system, and is generally mounted on the equipment or pipeline of closed system to protect the safety of system, and is a kind of hydraulic control valve, its main valve is divided into upper and lower two portions by diaphragm, the lower cavity of the diaphragm is water flow channel, the upper cavity is control chamber, and the opening and closing of valve clack of main valve can be controlled by it, and its self-body is a pressure relief valve, and it also has control chamber and water flow channel, and the opening and closing of valve clack is controlled by control chamber, and the needle valve is throttle valve, and it controls the flow rate of water in.

The existing pressure release valve is only sealed by extruding a sealing plate through a spring, the sealing effect is poor, the phenomenon of leakage can be generated after the pressure release valve is used for a long time, the sealing performance of the pressure release valve is reduced, manual pressure release is not convenient to carry out simultaneously, the internal pressure of a pipeline cannot be controlled better, and people cannot use the pressure release valve conveniently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pressure relief valve, it is sealed to possess through two spring extrusion closing plates, the leakproofness is good, the advantage of the manual pressure release of being convenient for, it mostly only seals up to have solved current relief valve spring extrusion closing plate, it is poor to seal up the effect, can produce the phenomenon of leaking after using for a long time, the leakproofness of relief valve has been reduced, be not convenient for carry out manual pressure release simultaneously, can not be better control pipeline internal pressure, the problem that people used not be convenient for.

In order to achieve the above object, the utility model provides a following technical scheme: a pressure relief valve comprises a valve body, wherein a circular ring is fixedly connected to the inner cavity of the valve body, a cross rod is fixedly connected to the inner wall of the valve body and is positioned at the top of the circular ring, a circular plate is fixedly connected to one end, away from the inner wall of the valve body, of the cross rod, a sleeve is fixedly connected to the bottom of the circular plate, a first spring is fixedly connected to the top of the inner cavity of the sleeve, an extrusion rod is fixedly connected to the bottom of the first spring, the bottom of the extrusion rod extends to the outside of the sleeve and is fixedly connected with a sealing plate, a second spring is sleeved on the surfaces of the sleeve and the extrusion rod, fixing rods are fixedly connected to the bottoms of the two sides of the inner cavity of the valve body, a threaded sleeve is fixedly connected to one end, away from the inner wall of the valve body, a threaded rod penetrates through the bottom of, the bottom of threaded rod fixedly connected with carousel.

Preferably, the top of the two sides of the extrusion rod is fixedly connected with a sliding rod, one end of the sliding rod, far away from the extrusion rod, is movably connected with a pulley through a rotating shaft, and one side of the pulley, far away from the extrusion rod, is in contact with the inner wall of the sleeve.

Preferably, the top cover on valve body surface is equipped with mounting flange, valve body and mounting flange fixed connection, the mounting hole has been seted up on mounting flange's surface, the quantity of mounting hole is four.

Preferably, the top of the second spring is fixedly connected with the bottom of the circular plate, the bottom of the second spring is fixedly connected with the top of the sealing plate, the bottom of the sealing plate is fixedly connected with the sealing gasket, and the bottom of the sealing gasket is in contact with the top of the circular ring.

Preferably, the surface of threaded rod is provided with the external screw thread, the inner wall of thread bush is provided with the internal thread with external screw thread looks adaptation, the top fixedly connected with connecting block of threaded rod.

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

1. the utility model discloses a valve body, the ring, the horizontal pole, the plectane, the sleeve pipe, first spring, the extrusion stem, the closing plate, the second spring, the dead lever, the thread bush, threaded rod and carousel cooperate, it is sealed to possess through two spring extrusion closing plates, the leakproofness is good, the advantage of the manual pressure release of being convenient for, it mostly only a spring extrusion closing plate seals to have solved current relief valve, it is poor to seal the effect, can produce the phenomenon of leaking after using for a long time, the leakproofness of relief valve has been reduced, be not convenient for carry out manual pressure release simultaneously, can not be better control pipeline internal pressure, the problem that people used not is convenient for.

2. The utility model discloses a set up the carousel, increase threaded rod bottom and the area of contact of finger, the rotation of the threaded rod of being convenient for, through setting up slide bar and pulley, can carry out balanced support to the stripper bar, the vertical removal of the stripper bar of being convenient for, through setting up mounting flange and mounting hole, be convenient for through the bolt to relief valve fixed mounting on the pipeline, through setting up sealed the pad, the leakproofness between closing plate and the ring has been strengthened, through setting up the connecting block, the area of contact of threaded rod top and closing plate has been increased, be convenient for promote the closing plate rebound.

Drawings

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

FIG. 2 is a schematic cross-sectional view of the connection between the sleeve and the first spring according to the present invention;

fig. 3 is a schematic view of the valve body and the mounting flange according to the present invention.

In the figure: the valve comprises a valve body 1, a circular ring 2, a cross rod 3, a circular plate 4, a sleeve 5, a first spring 6, an extrusion rod 7, a sealing plate 8, a second spring 9, a fixing rod 10, a threaded sleeve 11, a threaded rod 12, a rotary table 13, a sliding rod 14, a pulley 15, a mounting flange 16, a mounting hole 17, a sealing gasket 18 and a connecting block 19.

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, a pressure relief valve comprises a valve body 1, a circular ring 2 is fixedly connected to an inner cavity of the valve body 1, a cross rod 3 is fixedly connected to an inner wall of the valve body 1 and positioned at the top of the circular ring 2, a circular plate 4 is fixedly connected to an end of the cross rod 3 away from the inner wall of the valve body 1, a sleeve 5 is fixedly connected to a bottom of the circular plate 4, a first spring 6 is fixedly connected to a top of the inner cavity of the sleeve 5, a pressing rod 7 is fixedly connected to a bottom of the first spring 6, a bottom of the pressing rod 7 extends to the outside of the sleeve 5 and is fixedly connected to a sealing plate 8, a second spring 9 is sleeved on surfaces of the sleeve 5 and the pressing rod 7, fixing rods 10 are fixedly connected to bottoms of two sides of the inner cavity of the valve body 1, a threaded sleeve 11 is fixedly connected to an end of the fixing rod 10 away from the inner wall of, the threaded rod 12 is in threaded connection with the threaded sleeve 11, the bottom of the threaded rod 12 is fixedly connected with a rotary table 13, the tops of two sides of the extrusion rod 7 are fixedly connected with a sliding rod 14, one end, far away from the extrusion rod 7, of the sliding rod 14 is movably connected with a pulley 15 through a rotating shaft, one side, far away from the extrusion rod 7, of the pulley 15 is in contact with the inner wall of the sleeve 5, the top of the surface of the valve body 1 is sleeved with a mounting flange 16, the valve body 1 is fixedly connected with the mounting flange 16, mounting holes 17 are formed in the surface of the mounting flange 16, the number of the mounting holes 17 is four, the top of the second spring 9 is fixedly connected with the bottom of the circular plate 4, the bottom of the second spring 9 is fixedly connected with the top of the sealing plate 8, the bottom of the sealing plate 8 is fixedly connected with a sealing gasket 18, the bottom, the top of the threaded rod 12 is fixedly connected with a connecting block 19, the contact area between the bottom of the threaded rod 12 and fingers is increased by arranging the rotary table 13, the threaded rod 12 is convenient to rotate, the extrusion rod 7 can be supported in a balanced manner by arranging the sliding rod 14 and the pulley 15, the extrusion rod 7 is convenient to move vertically, the pressure release valve is convenient to be fixedly arranged on a pipeline by bolts by arranging the mounting flange 16 and the mounting hole 17, the sealing performance between the sealing plate 8 and the circular ring 2 is enhanced by arranging the sealing gasket 18, the contact area between the top of the threaded rod 12 and the sealing plate 8 is increased by arranging the connecting block 19, the sealing plate 8 is convenient to be pushed to move upwards, and the pressure release valve is matched with the rotary table 13 through the valve body 1, the circular ring 2, the transverse rod 3, the circular plate 4, the sleeve 5, the first spring 6, the extrusion rod 7, the sealing plate 8, possess and sealed through two spring extrusion closing plate 8, the leakproofness is good, the advantage of the manual pressure release of being convenient for, it has sealed that current relief valve mostly only a spring extrusion closing plate 8, it is sealed poor to seal the effect, can produce the phenomenon of leaking after using for a long time, the leakproofness of relief valve has been reduced, be not convenient for carry out manual pressure release simultaneously, can not be better control pipeline internal pressure, the problem that people used not convenient for.

During the use, produce tension to the pinch bar 7 through first spring 6, the pinch bar 7 promotes closing plate 8 downstream, make

closing plate

8 and 2 in close contact with of ring, directly produce tension to closing plate 8 through second spring 9, promote

closing plate

8 and 2 in close contact with of ring, the leakproofness is good between closing plate 8 and the plectane 4, it is rotatory that rotary table 13 drives threaded rod 12, make threaded rod 12 move up, threaded rod 12 drives connecting block 19 rebound, connecting block 19 promotes sealed 18 and closing plate 8 rebound, closing plate 8 drives sealed 18 of packing and keeps away from ring 2, ring 2 is passed at the top of gas 1 inner chamber from the valve body, thereby carry out the pressure release.

In summary, the following steps: this pressure relief valve, through valve body 1, the ring 2, the horizontal pole 3, the plectane 4, sleeve pipe 5, first spring 6, the stripper bar 7, the closing plate 8, the second spring 9, the dead lever 10, the thread bush 11, threaded rod 12 and carousel 13 cooperate, it mostly only has a spring extrusion closing plate to seal to have solved current relief valve, it is poor to seal the effect, can produce the phenomenon of leaking after using for a long time, the leakproofness of relief valve has been reduced, be not convenient for carry out manual pressure release simultaneously, can not be better control pipeline internal pressure, the problem that people used not convenient for.

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. A pressure relief valve, includes valve body (1), its characterized in that: the inner cavity of the valve body (1) is fixedly connected with a circular ring (2), the inner wall of the valve body (1) is fixedly connected with a cross rod (3) which is positioned at the top of the circular ring (2), one end, far away from the inner wall of the valve body (1), of the cross rod (3) is fixedly connected with a circular plate (4), the bottom of the circular plate (4) is fixedly connected with a sleeve (5), the top of the inner cavity of the sleeve (5) is fixedly connected with a first spring (6), the bottom of the first spring (6) is fixedly connected with an extrusion rod (7), the bottom of the extrusion rod (7) extends to the outside of the sleeve (5) and is fixedly connected with a sealing plate (8), the surfaces of the sleeve (5) and the extrusion rod (7) are sleeved with a second spring (9), the bottoms of the two sides of the inner cavity of the valve body (1) are both fixedly connected with fixing rods (10), one end, far, the bottom of valve body (1) is run through and is provided with threaded rod (12), the inner chamber that thread bush (11) and extend to ring (2) is run through at the top of threaded rod (12), threaded rod (12) and thread bush (11) threaded connection, the bottom fixedly connected with carousel (13) of threaded rod (12).

2. A pressure relief valve as claimed in claim 1, wherein: the top of extrusion pole (7) both sides all fixedly connected with slide bar (14), the one end that extrusion pole (7) were kept away from in slide bar (14) has pulley (15) through pivot swing joint, one side that extrusion pole (7) were kept away from in pulley (15) contacts with the inner wall of sleeve pipe (5).

3. A pressure relief valve as claimed in claim 1, wherein: the top cover on valve body (1) surface is equipped with mounting flange (16), valve body (1) and mounting flange (16) fixed connection, mounting hole (17) have been seted up on the surface of mounting flange (16), the quantity of mounting hole (17) is four.

4. A pressure relief valve as claimed in claim 1, wherein: the top of the second spring (9) is fixedly connected with the bottom of the circular plate (4), the bottom of the second spring (9) is fixedly connected with the top of the sealing plate (8), the bottom of the sealing plate (8) is fixedly connected with the sealing gasket (18), and the bottom of the sealing gasket (18) is in contact with the top of the circular ring (2).

5. A pressure relief valve as claimed in claim 1, wherein: the surface of threaded rod (12) is provided with the external screw thread, the inner wall of thread bush (11) is provided with the internal thread with external screw thread looks adaptation, the top fixedly connected with connecting block (19) of threaded rod (12).