CN218780816U

CN218780816U - Safety relief valve of high accuracy assembly

Info

Publication number: CN218780816U
Application number: CN202223146479.9U
Authority: CN
Inventors: 韩忠艮; 严花; 王代发
Original assignee: Shanghai Yinyan Fluid Technology Co ltd
Current assignee: Shanghai Yinyan Fluid Technology Co ltd
Priority date: 2022-11-26
Filing date: 2022-11-26
Publication date: 2023-03-31
Anticipated expiration: 2032-11-26

Abstract

The utility model discloses a high-precision assembled safety relief valve, which comprises a valve body, wherein a valve top is arranged at the top of the valve body, a valve core is arranged in the valve body, an adjusting shaft penetrates through the valve core, a base is arranged at the bottom of the valve body, and a guide ring is arranged at the joint of the valve body and the valve top; through the inside of installing the valve body simultaneously with case nestification on the regulating spindle, when the assembly, pull down behind the regulation lid, through using screwdriver and adjustment tank joint, it is rotatory to drive the axis body through rotatory screwdriver, the axis body is when rotatory, the threaded connection effect through axis body bottom and threaded connection seat changes the height in the threaded connection seat, thereby it removes at the top of top cap to drive fixed clamping ring, press the regulating plate through fixed clamping ring, thereby change the distance between regulating plate and the clamp plate, thereby through changing the distance compression spring between regulating plate and the clamp plate, change the work elasticity of spring, thereby reach the technological effect of conveniently adjusting relief valve operating pressure.

Description

Safety relief valve of high accuracy assembly

Technical Field

The utility model relates to a safety relief valve field especially relates to a safety relief valve of high accuracy assembly.

Background

The pressure relief valve, also called a safety valve, can be automatically opened and closed according to the working pressure of the system, and is generally installed on equipment or a pipeline of a closed system to protect the safety of the system. When the pressure in the equipment or the pipeline exceeds the set pressure of the pressure relief valve, the pressure relief valve can be automatically opened to ensure that the pressure of the medium in the equipment or the pipeline is lower than the set pressure, so that the equipment and the pipeline are protected, and accidents are prevented.

The main valve of the pressure relief valve is divided into an upper part and a lower part by a diaphragm, the lower cavity of the diaphragm is a water flow channel, and the upper cavity is a control chamber for controlling the opening and closing of the main valve flap; when in actual use, the operating pressure of relief valve needs to be adjusted according to the needs of using, the elastic force of operating spring in the main mode for adjusting the relief valve, the valve body and the valve top of traditional relief valve often directly are connected fixedly through flange structure, after the assembly, if need adjust the spring in the valve body, often need dismantle the valve top, the operation is complicated, for improving this problem, the operating pressure of relief valve is conveniently adjusted when the assembly, consequently, the safety relief valve of a high accuracy assembly is proposed.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of prior art, the utility model provides a safety relief valve of high accuracy assembly has produced the technological effect who conveniently adjusts relief valve operating pressure.

In order to solve the technical problem, the utility model provides a following technical scheme: a high-precision assembled safety relief valve comprises a valve body, wherein a valve top is installed at the top of the valve body, a valve core is installed inside the valve body, an adjusting shaft penetrates through the interior of the valve core, a base is installed at the bottom of the valve body, and a guide ring is installed at the joint of the valve body and the valve top; the valve top comprises a top cover, an adjusting cover arranged at the top of the top cover and a connecting clamping groove arranged at the bottom of the top cover; the adjusting shaft comprises a shaft body, an adjusting groove arranged at the top of the shaft body, a fixed pressing ring nested at the top end of the shaft body, an adjusting plate arranged at the bottom of the fixed pressing ring, a spring arranged at the bottom of the adjusting plate, and a pressing plate arranged at the bottom of the spring; the base includes the shell, installs the sealing ring in the shell inside to and set up the threaded connection seat in the sealing ring bottom.

As an optimal technical scheme of the utility model, the junction of top cap and valve body is provided with the flange structure, adjust the top thread tightening of lid and top cap, and connecting groove is the same with the size of guide ring.

As an optimal technical scheme of the utility model, the case nestification is on the axis body, case and axis body sliding connection, and the case is located the bottom of clamp plate.

As a preferred technical scheme of the utility model, the adjustment tank sets up to the cross draw-in groove, fixed clamping ring and axis body fixed connection, and the inner wall of top cap top and the connecting hole of adjusting the lid is hugged closely to the outer wall of fixed clamping ring.

As a preferred technical scheme of the utility model, the bottom surface of tight regulating plate is supported at the top of spring, and the top surface of tight clamp plate is supported to the bottom of spring, and clamp plate and axis body sliding connection.

As a preferred technical scheme of the utility model, the inside of sealing ring is passed to the bottom of axis body, the bottom of axis body is provided with the screw thread, and screw hole threaded connection in the bottom of axis body and the threaded connection seat.

As a preferred technical scheme of the utility model, the bottom embedding of guide ring is installed in the draw-in groove at valve body top, and the top and the connecting groove joint of guide ring.

Compared with the prior art, the utility model discloses the beneficial effect that can reach is:

1. the valve core is embedded on the adjusting shaft and is arranged in the valve body, the top of the valve body is sealed through the valve top, and the bottom of the valve body is sealed through the base; the valve top comprises an adjusting cover and a top cover, a rough anti-skidding structure is arranged on the outer side of the adjusting cover, the adjusting cover is assembled and disassembled through rotation, after the adjusting cover is disassembled, the screwdriver is clamped with the adjusting groove, the rotating screwdriver drives the shaft body to rotate, when the shaft body rotates, the height in the threaded connecting seat is changed through the threaded connection effect of the bottom of the shaft body and the threaded connecting seat, so that the fixed pressing ring is driven to move on the top of the top cover, the adjusting plate is pressed through the fixed pressing ring, the distance between the adjusting plate and the pressing plate is changed, the spring is compressed through changing the distance between the adjusting plate and the pressing plate, the working elasticity of the spring is changed, and the technical effect of conveniently adjusting the working pressure of the pressure release valve is achieved;

2. the utility model discloses an install the guide ring in the junction of valve body and valve top, the bottom embedding of guide ring is installed in the draw-in groove at valve body top, and the bottom of top cap is provided with connecting groove to and the top and the connecting groove joint of guide ring, thereby produce the skew when preventing to install the top cap, reach the technological effect of easy to assemble valve body and valve top.

Drawings

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

FIG. 2 is a partial exploded view of the present invention;

fig. 3 is a sectional structure view of the present invention.

Wherein: 1. a valve body; 2. a valve top; 3. a valve core; 4. an adjustment shaft; 5. a base; 6. a guide ring; 21. a top cover; 22. an adjusting cover; 23. a connecting clamping groove; 41. a shaft body; 42. an adjustment groove; 43. fixing the compression ring; 44. an adjusting plate; 45. a spring; 46. pressing a plate; 51. a housing; 52. a seal ring; 53. a threaded connection seat.

Detailed Description

In order to make the technical means, creation features, achievement objects and functions of the present invention easy to understand, the present invention will be further explained with reference to the following embodiments, however, the following embodiments are only preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the embodiment, those skilled in the art can obtain other embodiments without making creative efforts, and all of them belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Example (b):

as shown in fig. 1-3, a high-precision assembled safety relief valve comprises a valve body 1, a valve top 2 is installed at the top of the valve body 1, a valve core 3 is installed inside the valve body 1, an adjusting shaft 4 penetrates through the inside of the valve core 3, a base 5 is installed at the bottom of the valve body 1, and a guide ring 6 is installed at the joint of the valve body 1 and the valve top 2; the valve top 2 comprises a top cover 21, an adjusting cover 22 arranged at the top of the top cover 21 and a connecting clamping groove 23 arranged at the bottom of the top cover 21; the adjusting shaft 4 comprises a shaft body 41, an adjusting groove 42 arranged at the top of the shaft body 41, a fixed pressing ring 43 nested at the top end of the shaft body 41, an adjusting plate 44 arranged at the bottom of the fixed pressing ring 43, a spring 45 arranged at the bottom of the adjusting plate 44, and a pressing plate 46 arranged at the bottom of the spring 45; the base 5 comprises a shell 51, a sealing ring 52 arranged inside the shell 51, and a threaded connecting seat 53 arranged at the bottom of the sealing ring 52; by nesting the valve cartridge 3 on the adjustment shaft 4 while being mounted inside the valve body 1, the top of the valve body 1 is sealed by the valve top 2 and the bottom of the valve body 1 is sealed by the base 5.

In other embodiments, a flange structure is arranged at the connection part of the top cover 21 and the valve body 1, the adjusting cover 22 is fixed with the top of the top cover 21 by screw threads, the connecting clamping groove 23 is the same as the guide ring 6 in size, a rough anti-skid structure is arranged on the outer side of the adjusting cover 22, and the adjusting cover 22 is assembled and disassembled by rotation.

In other embodiments, the valve core 3 is nested on the shaft body 41, the valve core 3 is slidably connected with the shaft body 41, and the valve core 3 is located at the bottom of the pressure plate 46, and the valve core 3 is fixed in the valve body 1 through the shaft body 41, and moves on the shaft body 41 under the pressure in operation to control the opening and closing of the chamber in the valve body 1.

In other embodiments, the adjusting groove 42 is configured as a cross-shaped slot, the fixing ring 43 is fixedly connected to the shaft body 41, and the outer wall of the fixing ring 43 is tightly attached to the inner wall of the connecting hole between the top of the top cover 21 and the adjusting cover 22, the shaft body 41 can be rotated by a screwdriver through the adjusting groove 42, the fixing ring 43 moves along with the shaft body 41, and the sealing performance at the connecting position between the shaft body 41 and the top cover 21 is maintained by the fixing ring 43.

In other embodiments, the top of the spring 45 abuts against the bottom surface of the adjusting plate 44, the bottom of the spring 45 abuts against the top surface of the pressing plate 46, and the pressing plate 46 is slidably connected with the shaft body 41, so that the operating elastic force of the spring 45 is changed by changing the distance between the adjusting plate 44 and the pressing plate 46 to compress the spring 45.

In other embodiments, the bottom of the shaft body 41 passes through the inside of the sealing ring 52, the bottom of the shaft body 41 is provided with threads, and the bottom of the shaft body 41 is in threaded connection with the threaded hole in the threaded connection seat 53, so that the height of the shaft body 41 in the threaded connection seat 53 is changed by the threaded connection between the bottom of the shaft body 41 and the threaded connection seat 53 when the shaft body 41 rotates.

In other embodiments, the bottom of the guide ring 6 is embedded in a clamping groove at the top of the valve body 1, and the top of the guide ring 6 is clamped with the connecting clamping groove 23, so that the connection is guided by the guide ring 6 at the joint of the top cover 21 and the valve body 1, and the top cover 21 is prevented from being offset when being installed.

The utility model discloses a theory of operation: when the valve is used, the valve core 3 is embedded on the adjusting shaft 4 and is arranged in the valve body 1, the top of the valve body 1 is sealed through the valve top 2, and the bottom of the valve body 1 is sealed through the base 5; the valve top 2 comprises an adjusting cover 22 and a top cover 21, a rough anti-skid structure is arranged on the outer side of the adjusting cover 22, the adjusting cover 22 is assembled and disassembled through rotation, after the adjusting cover 22 is disassembled, the screwdriver is clamped with the adjusting groove 42, the screwdriver is rotated to drive the shaft body 41 to rotate, when the shaft body 41 rotates, the height in the threaded connecting seat 53 is changed through the threaded connection effect of the bottom of the shaft body 41 and the threaded connecting seat 53, so that the fixed pressing ring 43 is driven to move on the top of the top cover 21, the adjusting plate 44 is pressed through the fixed pressing ring 43, the distance between the adjusting plate 44 and the pressing plate 46 is changed, and the working elasticity of the spring 45 is changed through changing the distance between the adjusting plate 44 and the pressing plate 46 to compress the spring 45; through installing guide ring 6 at the junction of valve body 1 and valve top 2, the bottom embedding of guide ring 6 is installed in the draw-in groove at valve body 1 top, and the bottom of top cap 21 is provided with connecting slot 23 to and guide ring 6's top and connecting slot 23 joint, produce the skew when preventing to install top cap 21.

In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a safety relief valve of high accuracy assembly, includes valve body (1), its characterized in that: the top of the valve body (1) is provided with a valve top (2), the valve core (3) is arranged in the valve body (1), an adjusting shaft (4) penetrates through the valve core (3), the bottom of the valve body (1) is provided with a base (5), and a guide ring (6) is arranged at the joint of the valve body (1) and the valve top (2); the valve top (2) comprises a top cover (21), an adjusting cover (22) arranged at the top of the top cover (21), and a connecting clamping groove (23) arranged at the bottom of the top cover (21); the adjusting shaft (4) comprises a shaft body (41), an adjusting groove (42) arranged at the top of the shaft body (41), a fixed pressing ring (43) nested at the top end of the shaft body (41), an adjusting plate (44) arranged at the bottom of the fixed pressing ring (43), a spring (45) arranged at the bottom of the adjusting plate (44), and a pressing plate (46) arranged at the bottom of the spring (45); the base (5) comprises a shell (51), a sealing ring (52) installed inside the shell (51), and a threaded connecting seat (53) arranged at the bottom of the sealing ring (52).

2. A high precision assembled safety relief valve according to claim 1 wherein: the connecting part of the top cover (21) and the valve body (1) is provided with a flange structure, the adjusting cover (22) is fixed with the top of the top cover (21) through threads, and the connecting clamping groove (23) is the same as the guide ring (6) in size.

3. A high precision assembled safety relief valve according to claim 1 wherein: the valve core (3) is nested on the shaft body (41), the valve core (3) is connected with the shaft body (41) in a sliding mode, and the valve core (3) is located at the bottom of the pressure plate (46).

4. A high precision assembled safety relief valve according to claim 1 wherein: the adjusting groove (42) is arranged to be a cross-shaped clamping groove, the fixed pressing ring (43) is fixedly connected with the shaft body (41), and the outer wall of the fixed pressing ring (43) is tightly attached to the inner wall of the connecting hole of the top cover (21) and the adjusting cover (22).

5. A high precision assembled safety relief valve according to claim 1 wherein: the top of the spring (45) abuts against the bottom surface of the adjusting plate (44), the bottom of the spring (45) abuts against the top surface of the pressing plate (46), and the pressing plate (46) is connected with the shaft body (41) in a sliding mode.

6. A high precision assembled safety relief valve according to claim 1 wherein: the bottom of the shaft body (41) penetrates through the inside of the sealing ring (52), threads are arranged at the bottom of the shaft body (41), and the bottom of the shaft body (41) is in threaded connection with threaded holes in the threaded connection seat (53).

7. A high precision assembled safety relief valve according to claim 1 wherein: the bottom of the guide ring (6) is embedded in a clamping groove in the top of the valve body (1), and the top of the guide ring (6) is clamped with the connecting clamping groove (23).