Sealing structure of valve

Abstract

The utility model discloses a sealing structure of a valve, which belongs to the technical field of valves, and comprises a valve body, a main sealing assembly and an auxiliary sealing assembly, the top of the valve body is integrally provided with a valve seat, the top of the valve seat is fixedly provided with a detachable valve cover, the inside of the valve body is fixedly connected with an S-shaped partition plate, and the inside of the S-shaped partition plate is fixedly connected with the main sealing assembly. A valve hole is formed in the middle of the S-shaped partition plate, the main sealing assembly comprises an air cylinder, a valve element and a rubber hemisphere, the auxiliary sealing assembly comprises a motor, a connecting rod and a sealing plate, connecting blocks are integrally arranged on the two sides of the top of the valve seat correspondingly, connecting grooves are formed in the two sides of the valve deck correspondingly, and clamping grooves are formed in the inner walls of the connecting grooves. A spring is arranged in the connecting block, clamping blocks are fixedly connected to the two ends of the spring, and a push block is fixedly connected to one side of each clamping block; and through the arrangement of the main sealing assembly, double sealing can be conducted on the valve, the sealing performance of the valve can be improved, and the situation of valve leakage is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to valve technical field, concretely relates to a sealing structure of valve. BACKGROUND

[0002] Valves are used to open and close pipelines, control flow direction, adjust and control parameters of delivered liquid, and can be used to control the flow of various types of fluids such as air, water, steam, various corrosive liquids, mud, oil, liquid metal and radioactive liquid, and have various types and specifications and are widely used.

[0003] Valves are used to control the flow of various types of fluids such as air, water, steam, various corrosive liquids, mud, oil, liquid metal and radioactive liquid, and can be used to control the flow of various types of fluids such as air, water, steam, various corrosive liquids, mud, oil, liquid metal and radioactive liquid, and have various types and specifications and are widely used.

[0004] In the implementation of the above process, the inventor finds that at least the following problems exist in the technology: the existing valve due to long-term frequent opening and closing operation, the valve core and the valve body will appear different degree of wear, when the wear is more serious, it will cause the sealing not to be strict, it is easy to cause the leakage of the valve. UTILITY MODEL CONTENTS

[0005] The utility model discloses a sealing structure of valve, and solves the problems in the background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a sealing structure of valve, including valve body, main seal assembly and auxiliary seal assembly, the top of valve body is integrally provided with valve seat, the top of valve seat is fixedly installed with detachable valve cover, the inside of valve body is fixedly connected with S type baffle, the middle part of S type baffle is provided with valve hole, the main seal assembly includes air cylinder, valve core and rubber hemisphere, the air cylinder is fixedly installed in valve cover, the valve core is fixedly connected in the piston end of air cylinder, the rubber hemisphere is fixedly installed in the lower end of valve core, the auxiliary seal assembly includes motor, connecting rod and sealing plate, the motor is fixedly installed in valve cover, the connecting rod is clamped in motor output end, the sealing plate is fixedly connected on connecting rod, and the sealing plate is rotatably installed in valve body.

[0007] The both sides of valve seat top are integrally provided with connecting block, the both sides of valve cover are provided with connecting groove, the inner wall of connecting groove is provided with clamping groove, the inside of connecting block is provided with spring, the both ends of spring are fixedly connected with clamping block, and one side of clamping block is fixedly connected with push block.

[0008] As a preferred implementation form, the inner wall of the valve hole is fixedly connected with a sealing ring, and the sealing ring is a rubber ring.

[0009] As a preferred implementation form, the top of the valve seat is provided with a through hole penetrating the valve body, and the inner wall of the through hole is fixedly connected with a sealing sleeve, and the valve core is slidably penetrated in the sealing sleeve.

[0010] As a preferred implementation form, the lower end of the valve core is provided with a threaded groove, the top of the rubber hemisphere is fixedly connected with a threaded stud, and the threaded stud is threadedly connected in the threaded groove.

[0011] As a preferred implementation form, the output shaft of the motor is provided with a clamping block, the upper end of the connecting rod is provided with a clamping groove, and the clamping block is clamped with the clamping groove.

[0012] As a preferred implementation form, the end of the clamping block away from the spring is provided with an oblique angle.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] The sealing structure of the valve, through the setting of the main sealing assembly, can drive the valve core to ascend and descend by the cylinder, so that the valve core drives the rubber hemisphere to block the valve hole, and the valve can be closed, the valve core drives the rubber hemisphere to leave the valve hole, and the valve can be opened, through the setting of the auxiliary sealing assembly, when the main sealing assembly is not tightly sealed, the motor can be started to drive the connecting rod to rotate, so that the connecting rod drives the sealing plate to double-seal the valve, the sealing property of the valve can be improved, and the leakage of the valve can be avoided.

[0015] The sealing structure of the valve, through the setting of the connecting block, the connecting groove, the clamping groove, the spring, the clamping block and the push block, when the valve cover is installed, only the valve cover is covered on the valve seat, the connecting block is inserted into the connecting groove, the spring pushes the clamping block to be inserted into the clamping groove, the valve cover can be fixed, when the valve is overhauled, the clamping block can be retracted by pushing the push block, and the valve cover can be opened, so that the sealing element of the valve can be overhauled and replaced conveniently. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the utility model;

[0017] Figure 2 It is a cross section structure schematic view of the utility model;

[0018] Figure 3 It is a cross section structure schematic view of the connecting block of the utility model.

[0019] In the figure: 1, valve body; 11, valve seat; 12, valve cover; 13, S-shaped partition; 14, connecting block; 15, connecting groove; 16, clamping groove; 17, spring; 18, clamping block; 19, push block; 110, sealing ring; 111, sealing sleeve; 2, main sealing assembly; 21, air cylinder; 22, valve core; 23, rubber hemisphere; 24, threaded groove; 25, stud; 3, auxiliary sealing assembly; 31, motor; 32, connecting rod; 33, sealing plate; 34, clamping block; 35, clamping groove. DETAILED DESCRIPTION

[0020] The utility model will be further described below in combination with examples.

[0021] The following examples are used to illustrate the utility model, but cannot be used to limit the protection scope of the utility model. The conditions in the examples can be further adjusted according to specific conditions, and simple improvements of the method of the utility model under the concept of the utility model all belong to the range required to be protected by the utility model.

[0022] Please refer to Figures 1-3 The utility model provides a kind of sealing structure of valve, including valve body 1, main sealing assembly 2 and auxiliary sealing assembly 3, the top of valve body 1 is integrally provided with valve seat 11, the top of valve seat 11 is fixedly installed with detachable valve cover 12, the inside of valve body 1 is fixedly connected with S-shaped partition 13, the middle part of S-shaped partition 13 is equipped with valve hole, main sealing assembly 2 includes air cylinder 21, valve core 22 and rubber hemisphere 23, air cylinder 21 is fixedly installed in valve cover 12, valve core 22 is fixedly connected in the piston end of air cylinder 21, rubber hemisphere 23 is fixedly installed in the lower end of valve core 22, the inner wall of valve hole is fixedly connected with sealing ring 110, sealing ring 110 is rubber ring, by the setting of main sealing assembly 2, air cylinder 21 can be started to drive valve core 22 to lift, so that valve core 22 drives rubber hemisphere 23 to block valve hole, i.e. it can be closed to valve, valve core 22 drives rubber hemisphere 23 to leave valve hole, i.e. it can be opened to valve.

[0023] Among them, the top of valve seat 11 is equipped with through hole passing through valve body 1, the inner wall of through hole is fixedly connected with sealing sleeve 111, valve core 22 is slidably penetrated in sealing sleeve 111, by the setting of sealing sleeve 111, sealing effect can be played between valve core 22 and valve seat 11, avoid the medium in valve body 1 from flowing out from through hole.

[0024] Refer to Figure 2The auxiliary sealing assembly 3 comprises a motor 31, a connecting rod 32 and a sealing plate 33, the motor 31 is fixedly installed in the valve cover 12, the connecting rod 32 is clamped at the output end of the motor 31, the sealing plate 33 is fixedly connected to the connecting rod 32, and the sealing plate 33 is rotatably installed in the valve body 1, through the setting of the auxiliary sealing assembly 3, when the main sealing assembly 2 is not tightly sealed, the motor 31 can be started to drive the connecting rod 32 to rotate, so that the connecting rod 32 drives the sealing plate 33 to double-seal the valve, which can improve the sealing performance of the valve and avoid the leakage of the valve.

[0025] With reference to Figure 1 and Figure 3 , the valve cover 12 is provided with a connecting groove 15 on both sides, and the inner wall of the connecting groove 15 is provided with a clamping groove 16, the connecting block 14 is provided with a spring 17 inside, and the both ends of the spring 17 are fixedly connected with a clamping block 18, the end of the clamping block 18 away from the spring 17 is provided with an inclined angle, and the side of the clamping block 18 is fixedly connected with a push block 19, through the setting of the connecting block 14, the connecting groove 15, the clamping groove 16, the spring 17, the clamping block 18 and the push block 19, when installing the valve cover 12, only need to cover the valve cover 12 on the valve seat 11, insert the connecting block 14 into the connecting groove 15, and push the clamping block 18 into the clamping groove 16 by the spring 17, so as to fix the valve cover 12, when the valve is overhauled, the clamping block 18 can be retracted by pushing the push block 19, so as to open the valve cover 12, which is convenient for overhauling and replacing the sealing element of the valve.

[0026] With reference to Figure 2 , the lower end of the valve core 22 is provided with a threaded groove 24, and the top of the rubber hemisphere 23 is fixedly connected with a threaded stud 25, the threaded stud 25 is screwed into the threaded groove 24, through the cooperation of the threaded groove 24 and the threaded stud 25, when the rubber hemisphere 23 is seriously worn, the rubber hemisphere 23 can be disassembled and replaced.

[0027] With reference to Figure 2 , the output shaft of the motor 31 is provided with a clamping block 34, and the upper end of the connecting rod 32 is provided with a clamping groove 35, the clamping block 34 is clamped with the clamping groove 35, through the cooperation of the clamping block 34 and the clamping groove 35, when the valve cover 12 is opened, the motor 31 and the connecting rod 32 can be disassembled.

[0028] The utility model discloses a working principle and use flow: first, through the setting of main sealing assembly 2, can start air cylinder 21 and drive spool 22 to go up and down, make spool 22 drive rubber hemisphere 23 and block up valve hole, can close the valve, spool 22 drive rubber hemisphere 23 and leave valve hole, can open the valve, through the setting of auxiliary sealing assembly 3, when main sealing assembly 2 is not tight, can start motor 31 and drive connecting rod 32 to rotate, make connecting rod 32 drive sealing plate 33 and carry out double sealing to the valve, can improve the sealing property of valve, avoid the situation of valve leakage, through the setting of connecting block 14, connecting groove 15, clamping groove 16, spring 17, clamping block 18 and push block 19, when installing valve cover 12, only need to cover valve cover 12 on valve seat 11, connecting block 14 is inserted into connecting groove 15, spring 17 pushes clamping block 18 and inserts into clamping groove 16, can fix valve cover 12, when valve overhauls, can push push block 19 and retract clamping block 18, can open valve cover 12, conveniently overhaul and replace the sealing element of valve.

[0029] Although the embodiments of the utility model have been shown and described, it is understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A sealing structure of a valve comprising a valve body (1), a main sealing assembly (2) and an auxiliary sealing assembly (3), characterized in that: The top of the valve body (1) is integrally provided with a valve seat (11), the top of the valve seat (11) is fixedly installed with a detachable valve cover (12), the inside of the valve body (1) is fixedly connected with an S-shaped partition plate (13), the middle part of the S-shaped partition plate (13) is provided with a valve hole, the main sealing assembly (2) comprises a cylinder (21), a valve core (22) and a rubber hemisphere (23), the cylinder (21) is fixedly installed in the valve cover (12), the valve core (22) is fixedly connected to the piston end of the cylinder (21), the rubber hemisphere (23) is fixedly installed at the lower end of the valve core (22), the auxiliary sealing assembly (3) comprises a motor (31), a connecting rod (32) and a sealing plate (33), the motor (31) is fixedly installed in the valve cover (12), the connecting rod (32) is clamped at the output end of the motor (31), and the sealing plate (33) is fixedly connected to the connecting rod (32) and rotatably installed in the valve body (1); Both sides of the top of the valve seat (11) are integrally provided with a connecting block (14), both sides of the valve cover (12) are provided with a connecting groove (15), the inner wall of the connecting groove (15) is provided with a clamping groove (16), the inside of the connecting block (14) is provided with a spring (17), both ends of the spring (17) are fixedly connected with a clamping block (18), one side of the clamping block (18) is fixedly connected with a push block (19).

2. A valve sealing structure according to claim 1, wherein: The inner wall of the valve hole is fixedly connected with a sealing ring (110), and the sealing ring (110) is a rubber ring.

3. The valve seal of claim 1, wherein: The top of the valve seat (11) is provided with a through hole penetrating through the valve body (1), and the inner wall of the through hole is fixedly connected with a sealing sleeve (111), and the valve core (22) slides through the sealing sleeve (111).

4. The valve seal of claim 1, wherein: The lower end of the valve core (22) is provided with a threaded groove (24), and the top of the rubber hemisphere (23) is fixedly connected with a threaded stud (25), and the threaded stud (25) is threadedly connected in the threaded groove (24).

5. The valve seal of claim 1, wherein: The output shaft of the motor (31) is provided with a clamping block (34), and the upper end of the connecting rod (32) is provided with a clamping groove (35), and the clamping block (34) is clamped with the clamping groove (35).

6. The valve seal of claim 1, wherein: The end of the clamping block (18) away from the spring (17) is provided with an inclined angle.

Images