CN212318878U

CN212318878U - Safety valve with double sealing function

Info

Publication number: CN212318878U
Application number: CN202020652100.3U
Authority: CN
Inventors: 李波勇
Original assignee: Taiyuan Hangyu Machinery Equipment Co ltd
Current assignee: Taiyuan Hangyu Machinery Equipment Co ltd
Priority date: 2020-04-26
Filing date: 2020-04-26
Publication date: 2021-01-08
Anticipated expiration: 2030-04-26

Abstract

The utility model discloses a relief valve with double sealing function, including the valve body, the right-hand member fixedly connected with feed liquor mounting flange of valve body, the inner wall fixedly connected with baffle of valve body, the liquid mouth has been seted up on the surface of baffle, the inner wall sliding connection of valve body has the connecting plate, one side that the connecting plate is close to the baffle is used for the shutoff to cross the shutoff of liquid mouth through supporting to press a subassembly fixedly connected with to fill in one, the internal thread hole has been seted up to the side of valve body, the inner wall threaded connection in internal thread hole has the regulating part. The utility model discloses an above-mentioned isotructure's cooperation has realized when fluid pressure is less than spring one or spring two's elasticity, has realized double seal, has avoided fluidic leakage, can change the compression degree of spring one in addition through fastening bolt, and then can change the size that blocks up one and open required fluid pressure, is convenient for adapt to different service environment, has improved this relief valve adaptability.

Description

Safety valve with double sealing function

Technical Field

The utility model relates to the technical field of valves, specifically a relief valve with double sealing function.

Background

The relief valve mainly plays safety protection's effect, when system pressure exceeded the specified value, thereby the relief valve will be opened and carry out the pressure release, can guarantee that system pressure does not take place the accident because of the pressure is too high, and people attach more and more attention to self safety, and consequently people also are higher and more high to the requirement of relief valve. The existing safety valve has simple structure and poor sealing performance, is easy to cause some fluid leakage, brings inconvenience to the use, and has complicated and complicated discharge pressure regulation, so the improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a relief valve with double sealing function, when the fluid pressure when entering the valve body from feed liquor mounting flange is greater than the elasticity of spring one, the fluid can promote to seal and block one and cross liquid mouth looks mutual separation, the fluid can enter the valve body, if the fluid pressure that enters the valve body is greater than the elasticity of spring two, fluid pressure can promote to seal and block two and lower liquid mouth looks mutual separation, thereby make the fluid can flow out through going out liquid mounting flange, when fluid pressure is less than the elasticity of spring one or spring two, double sealing has been realized, avoid the leakage of fluid, in addition can change the compression degree of spring one through fastening bolt, and then can change the size of the required fluid pressure of opening of seal, be convenient for adapt to different service environments, the advantage of this relief valve adaptability has been improved, the problems set forth in the above background art are solved.

In order to achieve the above object, the utility model provides a following technical scheme: the safety valve with the double sealing function comprises a valve body, wherein a liquid inlet mounting flange is fixedly connected to the right end of the valve body, a baffle is fixedly connected to the inner wall of the valve body, a liquid outlet is formed in the surface of the baffle, a connecting plate is slidably connected to the inner wall of the valve body, one side, close to the baffle, of the connecting plate is fixedly connected with a blocking plug I used for blocking the liquid outlet through a pressing assembly, an internal thread hole is formed in the side face of the valve body, and an adjusting piece is in threaded connection with the inner wall of the internal thread hole.

The lower surface of the valve body close to the left side is fixedly connected with a fixed cylinder, the lower surface of the valve body is provided with a lower liquid opening, the bottom of the inner wall of the fixed cylinder is fixedly connected with a second plugging plug used for plugging the lower liquid opening through a second abutting assembly, and the side surface of the fixed cylinder is fixedly connected with a liquid outlet mounting flange.

Preferably, the first abutting component comprises a first telescopic rod fixedly connected to the side face of the connecting plate, one end, far away from the connecting plate, of the first telescopic rod is fixedly connected with the first plugging plug, a first spring is sleeved on the surface of the first telescopic rod, and two ends of the first spring are fixedly connected with the side face of the connecting plate and the side face of the first plugging plug respectively.

Preferably, the surface of the connecting plate is fixedly connected with a sealing ring, and the surface of the sealing ring is in sliding connection with the inner wall of the valve body.

Preferably, the adjusting piece is a fastening bolt, the fastening bolt is in threaded connection with the inner threaded hole, and the right end of the fastening bolt is abutted to the left side of the connecting plate.

Preferably, the surfaces of the first blocking plug and the second blocking plug are fixedly connected with sealing rubber layers.

Preferably, the abutting assembly II comprises a telescopic rod II fixedly connected to the bottom of the inner wall of the fixed cylinder, the top end of the telescopic rod II is fixedly connected with the bottom of the blocking plug II, a spring II is sleeved on the surface of the telescopic rod II, and the upper end and the lower end of the spring II are fixedly connected with the bottom of the blocking plug II and the bottom of the inner wall of the fixed cylinder respectively.

Compared with the prior art, the beneficial effects of the utility model are that: when fluid pressure entering the valve body from the liquid inlet mounting flange is larger than the elastic force of the first spring, fluid can push the first sealing plug and the liquid passing port to be separated from each other, the fluid can enter the valve body, if the fluid pressure entering the valve body is larger than the elastic force of the second spring, the fluid pressure can push the second sealing plug and the liquid passing port to be separated from each other, so that the fluid can flow out through the liquid outlet mounting flange, when the fluid pressure is smaller than the elastic force of the first spring or the second spring, double sealing is realized, leakage of the fluid is avoided, in addition, the compression degree of the first spring can be changed through the fastening bolt, the size of the fluid pressure required by opening the first sealing plug can be changed, the valve is convenient to adapt to different use environments, and the adaptability of the safety valve is improved.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a front cross-sectional view of the present invention;

FIG. 3 is an enlarged view of the structure at A of the present invention;

fig. 4 is an enlarged view of the structure of the present invention at B.

In the figure: 1-a valve body, 2-a liquid inlet mounting flange, 3-a baffle, 4-a connecting plate, 5-a first plugging plug, 6-an internal threaded hole, 7-a fixed cylinder, 8-a second plugging plug, 9-a liquid outlet mounting flange, 10-a first telescopic rod, 11-a first spring, 12-a sealing ring, 13-a fastening bolt, 14-a sealing rubber layer, 15-a second telescopic rod and 16-a second spring.

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 to 4, the present invention provides a technical solution: the utility model provides a relief valve with double sealing function, includes valve body 1, and valve body 1's right-hand member fixedly connected with feed liquor mounting flange 2, valve body 1's inner wall fixedly connected with baffle 3, the liquid mouth has been seted up on the surface of baffle 3, and valve body 1's inner wall sliding connection has connecting plate 4, and one side that connecting plate 4 is close to baffle 3 is used for the shutoff to cross the shutoff stopper of liquid mouth through supporting to press subassembly fixedly connected with to be filled in 5.

Further, support and press subassembly one including telescopic link 10 of fixed connection on the connecting plate 4 side, one end and the shutoff stopper 5 fixed connection of connecting plate 4 are kept away from to telescopic link 10, the surface cover of telescopic link 10 is equipped with spring 11, the both ends of spring 11 respectively with the side of connecting plate and the side fixed connection of shutoff stopper 5, when fluid pressure when entering into valve body 1 inside from feed liquor mounting flange 2 is greater than the elasticity of spring 11, the fluid can promote shutoff stopper 5 and cross liquid mouth looks alternate segregation, the fluid can enter into valve body 1.

Further, the surface of the connecting plate 4 is fixedly connected with a sealing ring 12, the surface of the sealing ring 12 is in sliding connection with the inner wall of the valve body 1, and the sealing ring 12 increases the sealing performance of the contact position of the connecting plate 4 and the inner wall of the valve body 1.

The side of valve body 1 has seted up internal thread hole 6, and the inner wall threaded connection in internal thread hole 6 has the regulating part.

Further, the regulating part is fastening bolt 13, and fastening bolt 13 threaded connection is in internal thread hole 6, and fastening bolt 13's right-hand member and the left side butt of connecting plate 4 can change the compression degree of a spring 11 through fastening bolt 13, and then can change the size that blocks up 5 and open required fluid pressure, and the different service environment of adaptation of being convenient for has improved this relief valve adaptability.

The lower surface of the valve body 1 close to the left side is fixedly connected with a fixed cylinder 7, the lower surface of the valve body 1 is provided with a lower liquid opening, the bottom of the inner wall of the fixed cylinder 7 is fixedly connected with a second sealing plug 8 used for sealing the lower liquid opening through a second abutting component, and the side surface of the fixed cylinder 7 is fixedly connected with a liquid outlet mounting flange 9.

Further, the surfaces of the first blocking plug 5 and the second blocking plug 8 are fixedly connected with sealing rubber layers 14, and the sealing rubber layers 14 increase the sealing performance between the first blocking plug 5 and the liquid passing port and between the second blocking plug 8 and the liquid discharging port.

Furthermore, the abutting assembly II comprises a second telescopic rod 15 fixedly connected to the bottom of the inner wall of the fixed cylinder 7, the top end of the second telescopic rod 15 is fixedly connected with the bottom of the second plugging plug 8, a second spring 16 is sleeved on the surface of the second telescopic rod 15, the upper end and the lower end of the second spring 16 are fixedly connected with the bottom of the second plugging plug 8 and the bottom of the inner wall of the fixed cylinder 7 respectively, when the fluid pressure entering the valve body 1 is greater than the elastic force of the second spring 16, the fluid pressure can push the second plugging plug 8 to be separated from the lower liquid opening, so that the fluid can flow out through the liquid outlet mounting flange 9, when the fluid pressure is less than the elastic force of the first spring 11 or the second spring 16, the first plugging plug 5 can be tightly pushed to abut against the liquid passing opening under the action of the elastic force of the first spring 11, the second plugging plug 8 can be tightly pushed to be in close contact with the lower liquid opening under, the leakage of the fluid is avoided.

The working principle is as follows: when the safety valve with the double sealing function is used, when fluid pressure entering the valve body 1 from the liquid inlet mounting flange 2 is greater than the elastic force of the spring I11, fluid can push the seal plug I5 to be separated from the liquid passing port, the fluid can enter the valve body 1, if the fluid pressure entering the valve body 1 is greater than the elastic force of the spring II 16, the fluid pressure can push the seal plug II 8 to be separated from the lower liquid passing port, so that the fluid can flow out through the liquid outlet mounting flange 9, when the fluid pressure is less than the elastic force of the spring I11 or the spring II 16, the seal plug I5 can be tightly pushed to be abutted against the liquid passing port under the action of the elastic force of the spring I11, the seal plug II 8 can be tightly pushed to be tightly contacted with the lower liquid passing port under the action of the elastic force of the spring II 16, double sealing is realized, the leakage of the fluid is avoided, and the compression degree of the spring I11 can be changed through the fastening bolt 13, and then can change the size that blocks 5 and open the required fluid pressure of jam, be convenient for adapt to different service environment, improved this relief valve adaptability.

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 safety valve with double sealing function, includes valve body (1), its characterized in that: the liquid inlet mounting flange is fixedly connected to the right end of the valve body (1), a baffle (3) is fixedly connected to the inner wall of the valve body (1), a liquid passing port is formed in the surface of the baffle (3), a connecting plate (4) is slidably connected to the inner wall of the valve body (1), a first plugging plug (5) for plugging the liquid passing port is fixedly connected to one side, close to the baffle (3), of the connecting plate (4) through a pressing assembly, an internal threaded hole (6) is formed in the side face of the valve body (1), and an adjusting piece is in threaded connection with the inner wall of the internal threaded hole (6);

the lower surface of the valve body (1) close to the left side is fixedly connected with a fixed cylinder (7), the lower surface of the valve body (1) is provided with a lower liquid opening, the bottom of the inner wall of the fixed cylinder (7) is provided with a second plugging plug (8) which is used for plugging the lower liquid opening through a second fixedly connected component, and the side surface of the fixed cylinder (7) is fixedly connected with a liquid outlet mounting flange (9).

2. A safety valve having a double sealing function according to claim 1, wherein: the first abutting component comprises a first telescopic rod (10) fixedly connected to the side face of the connecting plate (4), one end, far away from the connecting plate (4), of the first telescopic rod (10) is fixedly connected with the first plugging plug (5), a first spring (11) is sleeved on the surface of the first telescopic rod (10), and two ends of the first spring (11) are fixedly connected with the side face of the connecting plate and the side face of the first plugging plug (5) respectively.

3. A safety valve having a double sealing function according to claim 1, wherein: the surface of the connecting plate (4) is fixedly connected with a sealing ring (12), and the surface of the sealing ring (12) is connected with the inner wall of the valve body (1) in a sliding mode.

4. A safety valve having a double sealing function according to claim 1, wherein: the adjusting piece is a fastening bolt (13), the fastening bolt (13) is in threaded connection with the inner threaded hole (6), and the right end of the fastening bolt (13) is abutted to the left side of the connecting plate (4).

5. A safety valve having a double sealing function according to claim 1, wherein: and the surfaces of the first sealing plug (5) and the second sealing plug (8) are fixedly connected with sealing rubber layers (14).

6. A safety valve having a double sealing function according to claim 1, wherein: the abutting assembly II comprises a second telescopic rod (15) fixedly connected to the bottom of the inner wall of the fixed cylinder (7), the top end of the second telescopic rod (15) is fixedly connected with the bottom of the second plugging plug (8), a second spring (16) is sleeved on the surface of the second telescopic rod (15), and the upper end and the lower end of the second spring (16) are fixedly connected with the bottom of the second plugging plug (8) and the bottom of the inner wall of the fixed cylinder (7) respectively.