Pilot-operated type pneumatic control angle seat valve

Abstract

The utility model discloses a pilot-operated type pneumatic control angle seat valve, and relates to the technical field of angle seat valves. The valve comprises a valve body, and further comprises a valve part, a valve cover, a valve rod and a valve cover, and the valve part is mounted on the valve body; the compensation part is installed in the valve part and located in the valve body; the sealing part is arranged at the bottom of the compensation part and mounted in the valve body; wherein the valve part can provide a power source for the valve body, the compensation part and the sealing part can be connected through the valve body so that the valve part can operate stably, the valve part comprises an I-shaped block arranged at the top of the valve body, and a pilot valve is arranged at the top of the I-shaped block. According to the utility model, the compensation part is arranged, so that the problem that the sealing performance of the angle seat valve is reduced due to the fact that the valve rod for driving the valve to move is often rubbed with the angle seat valve and the part needs to be sealed and the sealing ring is gradually abraded along with the passage of the use time in the use process of the existing pilot-operated type pneumatic control angle seat valve is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of angle seat valve, especially, relate to a pilot formula gas control angle seat valve. BACKGROUND

[0002] The pilot formula gas control angle seat valve is widely used in the fluid control field of food, pharmaceutical, chemical industry and other industries, the traditional angle seat valve has problems of insufficient sealing performance, slow response speed, high energy consumption and inconvenient maintenance, with the improvement of industrial automation degree, the precise control, reliability and durability of the valve are continuously improved, the pilot formula gas control angle seat valve can realize quick opening and closing and precise flow regulation through the pilot gas control main valve action, has advantages of excellent sealing performance, energy saving and high efficiency, can effectively meet the demand of complex working conditions, and becomes the key component of the upgrading of industrial fluid control technology.

[0003] However, in the use process of the existing pilot formula gas control angle seat valve, the valve rod driving the valve movement will often rub against the angle seat valve, and this part needs to be sealed, with the passage of time, the sealing ring will gradually wear out, resulting in the sealing performance of the angle seat valve being reduced. UTILITY MODEL CONTENTS

[0004] The utility model discloses a pilot formula gas control angle seat valve, through setting up the compensation part, the existing pilot formula gas control angle seat valve in the use process, the valve rod driving the valve movement will often rub against the angle seat valve, and this part needs to be sealed, with the passage of time, the sealing ring will gradually wear out, resulting in the sealing performance of the angle seat valve being reduced.

[0005] To solve the above technical problems, the utility model is realized through the following technical schemes:

[0006] The utility model discloses a pilot formula gas control angle seat valve, including the valve body, still include: the valve part, the valve part is installed on the valve body, the compensation part, the compensation part is installed in the valve part, and is located in the valve body, and the sealing part, the sealing part sets up at the compensation part bottom, and is installed in the valve body inside, wherein, the valve part provides the power source for the valve body, and the valve body connects the compensation part and the sealing part, lets the valve part stable operation.

[0007] Further, the valve part includes a work type block provided at the top of the valve body, a pilot valve is provided at the top of the work type block, an output shaft of the pilot valve extends into the pilot valve and the compensation part, wherein the work type block is flange-connected with the valve body, and the work type block is flange-connected with the pilot valve.

[0008] Further, the compensation part includes a sliding assembly installed on the inner wall of the valve body, which is cylindrical, and a compensation assembly provided in the sliding assembly for assisting the operation of the sliding assembly, wherein the sliding assembly ensures the sealing performance of the valve part during operation.

[0009] Further, the sealing part comprises an elastic assembly installed inside the valve body and located at the right side, and a communication assembly arranged in the elastic assembly, the bottom of the sliding assembly extending into the communication assembly; wherein the sealing part is opened and closed by the pilot valve under the action of the compensation part, so as to communicate or close the left and right sides of the valve body.

[0010] Further, the sliding assembly comprises a connecting block one fixedly connected to the inner wall of the valve body, the connecting block one being located above the valve body, a valve rod being arranged in the connecting block one, the output shaft of the pilot valve being fixedly connected to the valve rod through a shaft coupling, and a sealing element being arranged in the connecting block one; wherein a groove is arranged in the connecting block one, the groove penetrating through the connecting block one, and the valve rod being located in the groove.

[0011] Further, the compensation assembly comprises a groove two arranged in the connecting block one, groove threes being arranged in the top inner wall and the bottom inner wall of the groove two, and compensation elements being arranged in the two groove threes; wherein the groove two is circular ring-shaped, the two groove threes are circular ring-shaped, and the valve rod and the valve part are kept continuously sealed by the sealing element under the action of the two compensation elements.

[0012] Further, the elastic assembly comprises a connecting block two fixedly connected to the inner wall of the valve body, the connecting block two being located at the right end of the valve body, a groove four being arranged at the top of the connecting block two, and an elastic element being arranged in the groove four; wherein the groove four is circular ring-shaped, the elastic element is circular ring-shaped, and is matched with the groove four.

[0013] Further, the communication assembly comprises a groove five arranged on the connecting block two, a piston door being fixedly connected to the bottom of the valve rod, and the outer wall of the piston door being matched with the groove five; wherein the groove five penetrates through the connecting block two, and the piston door is matched with the elastic element to keep the left and right sides of the valve body sealed.

[0014] Further, the sealing element comprises a groove one arranged in the inner wall of the connecting block one, the outer wall of the groove one being communicated with the groove two, a sealing ring one being arranged in the groove one, the outer wall of the sealing ring one being tightly matched with the groove one, and the inner wall of the sealing ring one being tightly matched with the valve rod; the compensation element comprises a sliding block slidingly connected to the inner wall of the groove two, the mutually faraway sides of the two sliding blocks being fixedly connected with springs one, and the mutually faraway sides of the two springs one being fixedly connected with the two groove threes, respectively; wherein the sealing ring one is wear-resistant rubber, the top and the bottom of the sealing ring one are provided with trapezoidal slopes, the sliding block is matched with the trapezoidal slopes on the sealing ring one, and the springs one are kept compressed and accumulate large elastic force in normal state.

[0015] Further, the elastic member comprises a sealing ring two slidingly connected to the inner wall of the groove four, the bottom of the sealing ring two is fixedly connected with a spring two, and the bottom of the spring two is fixedly connected with the groove four; wherein the sealing ring two is a circular rubber ring and is matched with the piston door.

[0016] The utility model has the following beneficial effects:

[0017] 1. By setting up the compensation part, when the valve rod moves under the action of the pilot valve, the valve door part can be kept sealed under the action of the sealing ring one, and the sealing ring one can be rubbed, when the sealing ring one is abraded, the sliding block can be extruded under the action of the two spring one elastic force, the sliding block can extrude the sealing ring one, the sealing ring one can slide in the groove one, and the valve rod can be retracted, the sealing performance between the valve rod and the sealing ring one can be kept, and the overall service life of the angle seat valve can be prolonged.

[0018] 2. By setting up the sealing part, when the valve door needs to be opened, the pilot valve can be started, the output shaft moves upwards, under the action of the valve rod, the piston door can be pulled away from the groove five, when the piston door is away from the groove five, the left side and the right side of the valve body can be communicated, when the valve door needs to be closed, the pilot valve can be started, the output shaft moves reversely, the piston door can be inserted into the groove five, in the process that the piston door is inserted into the groove five, the sealing ring two can be extruded, the sealing ring two can slide into the groove four and apply pressure to the spring two, the spring two can be elastically deformed and generate elastic force, under the action of the piston door and the sealing ring two, the left side and the right side of the valve body can be closed, when the valve door is closed, the sealing of the left side and the right side of the valve body can be guaranteed, various media can be prevented from leaking, the device can be applied to harsh working conditions of sealing degree, and the sealing performance of the device can be improved.

[0019] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages mentioned above. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creating labor.

[0021] Figure 1 It is the right side sectional structure schematic diagram of the utility model;

[0022] Figure 2 It is the overall structure schematic diagram of the utility model;

[0023] Figure 3A partial cross-section structure schematic view of the compensation part of the utility model;

[0024] Figure 4 A partial cross-section structure schematic view of the compensation assembly of the utility model;

[0025] Figure 5 A partial cross-section structure schematic view of the sealing part of the utility model.

[0026] In the drawings, the components represented by each reference numeral are listed as follows:

[0027] 1, valve part;101, valve body;102, I-shaped block;103, pilot valve;2, compensation part;21, sliding assembly;211, connecting block one;212, valve rod;213, groove one;214, sealing ring one;22, compensation assembly;221, groove two;222, groove three;223, sliding block;224, spring one;3, sealing part;31, elastic assembly;311, connecting block two;312, groove four;313, sealing ring two;314, spring two;32, communication assembly;321, groove five;322, piston door. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0029] Please refer to Figures 1-5 The utility model discloses a pilot type pneumatic control angle seat valve, including valve body 101, still include: valve part 1, valve part 1 installs on valve body 101, compensation part 2, compensation part 2 installs in valve part 1, and located in valve body 101, and sealing part 3, sealing part 3 sets up in compensation part 2 bottom, and installs in valve body 101 inside, wherein, valve part 1 is the power source of valve body 101, and valve body 101 connects compensation part 2 and sealing part 3, lets valve part 1 stable operation, and valve part 1 includes the I-shaped block 102 of setting in valve body 101 top, the top of I-shaped block 102 is provided with pilot valve 103, the output shaft of pilot valve 103 extends to pilot valve 103, and extends to compensation part 2, wherein, I-shaped block 102 and valve body 101 are flange connection, and I-shaped block 102 and pilot valve 103 are flange connection.

[0030] The compensation part 2 comprises a sliding assembly 21 installed on the inner wall of the valve body 101, which is cylindrical, and a compensation assembly 22 arranged in the sliding assembly 21 and used for assisting the operation of the sliding assembly 21; wherein the sliding assembly 21 guarantees the sealing performance of the valve part 1 during operation, and comprises a connecting block one 211 fixedly connected to the inner wall of the valve body 101 and located above the valve body 101, a valve stem 212 arranged in the connecting block one 211, an output shaft of the pilot valve 103 fixedly connected to the valve stem 212 through a shaft coupling, and a sealing element arranged in the connecting block one 211; wherein a groove is arranged in the connecting block one 211 and penetrates through the connecting block one 211, and the valve stem 212 is located in the groove; the compensation assembly 22 comprises a groove two 221 arranged in the connecting block one 211, a groove three 222 arranged in the top inner wall and the bottom inner wall of the groove two 221, and a compensation element arranged in each of the two groove threes 222; wherein the groove two 221 is annular, each of the two groove threes 222 is annular, and the valve stem 212 is kept in continuous sealing connection with the valve part 1 through the sealing element under the action of the two compensation elements; the sealing element comprises a groove one 213 arranged in the inner wall of the connecting block one 211, an outer wall of the groove one 213 in communication with the groove two 221, a sealing ring one 214 arranged in the groove one 213, an outer wall of the sealing ring one 214 closely fitted with the groove one 213, and an inner wall of the sealing ring one 214 closely fitted with the valve stem 212; and the compensation element comprises a sliding block 223 slidingly connected to the inner wall of the groove two 221, a spring one 224 fixedly connected to the side of each of the two sliding blocks 223 away from each other, and the side of each of the two spring ones 224 away from each other fixedly connected with the two groove threes 222 respectively; wherein the sealing ring one 214 is made of wear-resistant rubber, and the top and the bottom thereof are provided with trapezoidal slopes, the sliding block 223 is adapted to the trapezoidal slopes on the sealing ring one 214, and the spring one 224 is kept compressed in a normal state and accumulates a large elastic force; by arranging the compensation part 2, the sealing ring one 214 can be retracted towards the valve stem 212 when the sealing ring one 214 is worn out, the sealing performance is kept, and the overall service life of the angle seat valve is prolonged.

[0031] The sealing part 3 comprises an elastic assembly 31 installed inside the valve body 101 and located on the right side, and a communication assembly 32 arranged in the elastic assembly 31, and the bottom of the sliding assembly 21 extends into the communication assembly 32; wherein the left side and the right side of the valve body 101 are communicated or closed by operating the sealing part 3 under the action of the compensation part 2 through the pilot valve 103, the elastic assembly 31 comprises a connecting block two 311 fixedly connected to the inner wall of the valve body 101, the connecting block two 311 is located at the right end of the valve body 101, the top of the connecting block two 311 is provided with a groove four 312, and the inside of the groove four 312 is provided with an elastic piece; wherein the groove four 312 is a circular ring, the elastic piece is a circular ring and is matched with the groove four 312, the communication assembly 32 comprises a groove five 321 arranged on the connecting block two 311, the bottom of the valve rod 212 is fixedly connected with a piston door 322, and the outer wall of the piston door 322 is matched with the groove five 321; wherein the groove five 321 penetrates through the connecting block two 311, the piston door 322 is matched with the elastic piece, and the left side and the right side of the valve body 101 are kept sealed, the elastic piece comprises a sealing ring two 313 slidingly connected to the inner wall of the groove four 312, the bottom of the sealing ring two 313 is fixedly connected with a spring two 314, and the bottom of the spring two 314 is fixedly connected with the groove four 312; wherein the sealing ring two 313 is a circular ring rubber ring and is matched with the piston door 322, by arranging the sealing part 3, the sealing of the left side and the right side of the valve body 101 can be ensured when the valve is closed, leakage of various media is prevented, it can be applied to working conditions with high sealing requirements, and thus the sealing performance of the device is improved.

[0032] One specific application of the embodiment is that in use, the valve body 101 can be installed at the corresponding position, when it is needed to open the valve, the pilot valve 103 can be started, wherein the pilot valve 103 is a pilot pneumatic valve, when it is vented or exhausted, the spool of the main valve is moved, so that the opening and closing of the valve is realized, the output shaft is moved upward, at this time, the piston door 322 is pulled away from the groove five 321 under the action of the valve rod 212, when the piston door 322 is away from the groove five 321, the left side and the right side of the valve body 101 are communicated, when it is needed to close the valve, the pilot valve 103 can be started, so that the output shaft is reversely moved, so that the piston door 322 is inserted into the groove five 321, in the process that the piston door 322 is inserted into the groove five 321, the sealing ring two 313 is extruded, so that it slides into the groove four 312 and exerts pressure on the spring two 314, so that the spring two 314 is elastically deformed and generates elastic force, under the action of the piston door 322 and the sealing ring two 313, the left side and the right side of the valve body 101 are closed, when the valve rod 212 is moved under the action of the pilot valve 103, the sealing of the valve part 1 is maintained under the action of the sealing ring one 214, and the sealing ring one 214 is rubbed, when the sealing ring one 214 is worn, the slider 223 is extruded under the action of the elastic force of the two springs one 224, so that it slides in the groove two 221, and the slider 223 extrudes the sealing ring one 214, at this time, the sealing ring one 214 slides in the groove one 213 and contracts to the valve rod 212, so that the valve rod 212 and the sealing ring one 214 are sealed.

[0033] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0034] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details, nor limit the application to the specific embodiments described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited by the claims and their entire scope and equivalents.

Claims

1. A pilot operated pneumatic angle seat valve comprising a valve body, characterised in that, Also include: Valve part, said valve part is installed on the valve body; Compensation part, said compensation part is installed in the valve part, and is located in the valve body; And Sealing part, said sealing part is provided at the bottom of the compensation part, and is installed inside the valve body; Wherein, the valve part provides power source for the valve body, and the valve body connects the compensation part and the sealing part, so that the valve part operates stably.

2. The pilot-operated gas-loaded angular seat valve of claim 1, wherein, The valve part includes a work type block provided at the top of the valve body, a top of the work type block is provided with a pilot valve, an output shaft of the pilot valve extends into the pilot valve, and extends into the compensation part; Wherein, the work type block and the valve body are flange connected, and the work type block and the pilot valve are flange connected.

3. The pilot-operated gas-loaded angular seat valve of claim 2, wherein, The compensation part includes a sliding assembly, the sliding assembly is installed on the inner wall of the valve body, which is cylindrical; And Compensation assembly, said compensation assembly is provided in the sliding assembly, used for assisting the sliding assembly to operate; Wherein, the sliding assembly guarantees the sealing property when the valve part operates.

4. The pilot-operated gas-loaded angular seat valve of claim 3, wherein, The sealing part includes a resilient assembly, said resilient assembly is installed inside the valve body, and is located at the right side; And The communication assembly, said communication assembly is provided in the resilient assembly, the bottom of the sliding assembly extends into the communication assembly; Wherein, the pilot valve operates the sealing part under the action of the compensation part, so that the left side and the right side of the valve body are communicated or closed.

5. The pilot-operated gas-loaded angular seat valve of claim 4 wherein, The sliding assembly includes a connecting block one fixedly connected to the inner wall of the valve body, the connecting block one is located above the valve body, a valve rod is provided in the connecting block one, the output shaft of the pilot valve is fixedly connected with the valve rod through a shaft coupling, and a sealing element is provided in the connecting block one; Wherein, a groove is formed in the connecting block one, the groove penetrates through the connecting block one, and the valve rod is located in the groove.

6. A pilot gas-operated angle seat valve according to claim 5, wherein The compensation assembly includes a groove two formed in the connecting block one, groove threes are formed in the top inner wall and the bottom inner wall of the groove two, and compensation elements are arranged in the two groove threes; Wherein, the groove two is circular ring, the two groove threes are circular ring, and the valve rod and the valve part are kept continuous sealing through the sealing element under the action of the two compensation elements.

7. A pilot gas-operated angle seat valve according to claim 6, wherein The resilient assembly includes a connecting block two fixedly connected to the inner wall of the valve body, the connecting block two is located at the right end of the valve body, a groove four is formed at the top of the connecting block two, and an elastic element is arranged in the groove four; Wherein, the groove four is circular ring, the elastic element is circular ring, and is matched with the groove four.

8. A pilot gas-operated angle seat valve according to claim 7, wherein The communication assembly includes a groove five formed on the connecting block two, the bottom of the valve rod is fixedly connected with a piston door, and the outer wall of the piston door is matched with the groove five; Wherein, the groove five penetrates through the connecting block two, and the piston door is matched with the elastic element, so that the left side and the right side of the valve body are sealed.

9. A pilot gas-operated angle seat valve according to claim 8, wherein The sealing element includes a groove one formed in the inner wall of the connecting block one, the outer wall of the groove one is communicated with the groove two, a sealing ring one is arranged in the groove one, the outer wall of the sealing ring one is tightly combined with the groove one, and the inner wall of the sealing ring one is tightly combined with the valve rod; The compensation element includes a sliding block slidably connected to the inner wall of the groove two, two springs one are fixedly connected to the sides away from each other of the two sliding blocks, and the two springs one are fixedly connected to the two groove threes respectively. The sealing ring one is wear-resistant rubber, and the top and bottom of the sealing ring one are provided with trapezoidal slopes, the sliding block is matched with the trapezoidal slopes on the sealing ring one, and the spring one is kept compressed and accumulates greater elastic force in normal state.

10. The pilot-operated gas-loaded angular seat valve of claim 9, wherein, The elastic member comprises a sealing ring two slidingly connected to the inner wall of the groove four, and the bottom of the sealing ring two is fixedly connected with a spring two, and the bottom of the spring two is fixedly connected with the groove four. The sealing ring two is a circular rubber ring and is matched with the piston door.

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