Vacuum valve

Abstract

The utility model belongs to the technical field of capacitor production, and particularly relates to a vacuum valve which comprises a valve body arranged on the outer edge of a high-pressure impregnation cylinder, the valve body is provided with a valve cavity, the valve cavity is provided with a first opening and a second opening, and the first opening device is communicated with the high-pressure impregnation cylinder; the vacuum connecting pipe is connected with the valve body corresponding to the second opening; the cylinder is arranged on the valve body; the valve element is coaxially connected with the output end of the air cylinder, the valve element is arranged in the valve cavity in a penetrating mode and extends out of the first opening, a closing plate part is arranged at the end, away from the air cylinder, of the valve element, a cover body is connected to the closing plate part, a first sealing groove is defined between the cover body and the closing plate part, and a T-shaped sealing ring is arranged in the first sealing groove. According to the vacuum valve, even in a high-pressure or vacuum environment, it can be ensured that the valve element and the valve body are tightly attached, and leakage is prevented.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of capacitor production, in particular to a vacuum valve. BACKGROUND

[0002] In the process of capacitor production, the capacitor needs to be subjected to vacuum high-pressure immersion treatment, so the vacuum valve for controlling the vacuum operation of the immersion tank needs to be relatively high. In the related art, the vacuum valve has a complex structure and poor sealing effect, and it is difficult to achieve good sealing effect.

[0003] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present disclosure, and therefore can include information that does not constitute prior art known to those skilled in the art. SUMMARY

[0004] In view of at least one of the above technical problems, the present application provides a vacuum valve to solve the problem that the existing vacuum valve has a complex structure and poor sealing effect, and it is difficult to achieve good sealing effect.

[0005] The present application provides a vacuum valve applied in a high-pressure immersion tank, comprising:

[0006] A valve body is arranged outside the high-pressure immersion tank, the valve body is provided with a valve cavity, the valve cavity has a first opening and a second opening, and the first opening is arranged in communication with the high-pressure immersion tank;

[0007] A vacuum connecting pipe is connected with the valve body corresponding to the second opening;

[0008] A cylinder is arranged on the valve body;

[0009] A valve core is coaxially connected with the output end of the cylinder, the valve core is arranged in the valve cavity and extends out of the first opening, one end of the valve core away from the cylinder is provided with a closing plate part, a cover body is connected with the closing plate part, a first sealing groove is formed between the cover body and the closing plate part, and a T-seal ring is arranged in the first sealing groove.

[0010] One of the above technical solutions has at least one of the following advantages or beneficial effects: the present vacuum valve is arranged outside the high-pressure immersion tank, so that the valve body is not directly subjected to the pressure in the high-pressure immersion tank, the service life and safety of the valve body are improved, the opening and closing of the valve core can be accurately controlled by using the driving force of the cylinder, the response speed and operation convenience of the vacuum valve are improved, and in addition, the T-seal ring is arranged in the first sealing groove, which further improves the sealing reliability of the vacuum valve, and even in a high-pressure or vacuum environment, the valve core and the valve body can be tightly fitted to prevent leakage.

[0011] In some possible implementation manners, the diameters of the closing plate part and the cover body are greater than the diameter of the first opening.

[0012] In some possible implementations, a first abutment block is protruded from the edge of the closing plate toward the first sealing groove, and a second abutment block is protruded from the edge of the cover toward the first sealing groove. The first abutment block and the second abutment block respectively abut against the T-ring.

[0013] In some possible implementations, a second sealing groove is provided on the outer periphery of one end of the valve body away from the cylinder, and a first sealing ring is provided in the second sealing groove.

[0014] In some possible implementations, a third sealing groove is provided on a surface of the valve body facing the vacuum connecting pipe, and a second sealing ring is provided in the third sealing groove.

[0015] The present application is further described below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1 A schematic diagram of the structure of a vacuum valve provided in an embodiment of the present application;

[0018] Figure 2 for Figure 1 Internal structure diagram of the medium vacuum valve;

[0019] Figure 3 for Figure 1 Diagram of the internal structure of the middle closing plate and the cover;

[0020] In the figure: 100, valve body; 110, valve chamber; 120, first opening; 130, second opening; 140, second sealing groove; 150, first sealing ring;

[0021] 160, third sealing groove; 170, second sealing ring; 200, vacuum connection pipe; 300, cylinder;

[0022] 400, valve core; 410, closing plate; 420, cover; 430, first sealing groove; 440, T-ring;

[0023] 411, first abutting block; 421, second abutting block; DETAILED DESCRIPTION

[0024] In order to make the above objectives, characteristics and advantages of the present application more apparent, more comprehensible, specific embodiments of the present application are described in detail below with reference to the drawings. In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be implemented in many different ways other than those described herein, and one of ordinary skill in the art can make similar improvements without departing from the spirit of the present application, and therefore the present application is not limited to the specific embodiments disclosed below.

[0025] As shown in the drawings, the present embodiment provides a vacuum valve applied to a high-pressure impregnation cylinder, comprising a valve body 100, a vacuum connection pipe 200, a cylinder 300 and a valve core 400. Figures 1 to 3

[0026] The specific structure of the vacuum valve is described below.

[0027] The valve body 100 is arranged on the outer side of the high-pressure impregnation cylinder, and the valve body 100 is provided with a valve cavity 110, the valve cavity 110 has a first opening 120 and a second opening 130, the first opening 120 is arranged in communication with the high-pressure impregnation cylinder; the vacuum connection pipe 200 is connected with the valve body 100 corresponding to the second opening 130; the cylinder 300 is arranged on the valve body 100; the valve core 400 is coaxially connected with the output end of the cylinder 300, the valve core 400 is arranged in the valve cavity 110 and extends out of the first opening 120, and the end of the valve core 400 away from the cylinder 300 is provided with a closing plate part 410, the closing plate part 410 is connected with a cover body 420, a first sealing groove 430 is formed between the cover body 420 and the closing plate part 410, and a T-seal ring 440 is arranged in the first sealing groove 430.

[0028] The closing plate part 410 and the valve core 400 are integrally formed to enhance the structural strength of the valve core 400. The closing plate part 410 is circular in shape, the cover body 420 is circular in shape, and the diameters of the closing plate part 410 and the cover body 420 are both greater than the diameter of the first opening 120, so as to close the first opening 120.

[0029] In addition, the closing plate part 410 and the cover body 420 are coaxially connected, and the closing plate part 410 and the cover body 420 are connected through a locking member. The locking member can include a screw, a bolt, etc.

[0030] The T-seal ring 440 is arranged in the first sealing groove 430, so as to improve the sealing performance between the closing plate part 410 and the valve body 100.

[0031] ​When the impregnation cylinder is vacuumized, the air cylinder 300 pushes the valve core 400, so that the T-seal ring 440 is separated from the valve body 100, the first opening 120 is opened, and the valve body 100 is communicated with the impregnation cylinder. When the impregnation cylinder is pressurized, the air cylinder 300 pushes the valve core 400, so that the T-seal ring 440 is attached to the valve body 100, the first opening 120 is closed, and the valve body 100 is disconnected from the impregnation cylinder. The vacuum valve sets the valve body 100 outside the high-pressure impregnation cylinder, avoiding the valve body 100 directly bearing the pressure in the high-pressure impregnation cylinder, improving the service life and safety of the valve body 100. In addition, the air cylinder 300 can accurately control the opening and closing of the valve core 400, improve the response speed and operation convenience of the vacuum valve, and further improve the sealing reliability of the vacuum valve by setting the T-seal ring 440 in the first sealing groove 430. Even in a high-pressure or vacuum environment, the valve core 400 and the valve body 100 can be tightly attached to prevent leakage.

[0032] As shown in Figures 1 to 3 some embodiments, the first abutting block 411 is protruded from the edge of the closing plate part 410 towards the first sealing groove 430, and the second abutting block 421 is protruded from the edge of the cover body 420 towards the first sealing groove 430, and the first abutting block 411 and the second abutting block 421 respectively abut against the T-seal ring 440. In this way, the T-seal ring 440 can be fixed to prevent it from falling out of the first sealing groove 430.

[0033] As shown in Figures 1 to 3 some embodiments, the second sealing groove 140 is arranged on the outer periphery of the valve body 100 away from the air cylinder 300, and the first sealing ring 150 is arranged in the second sealing groove 140. In this way, the sealing between the valve body 100 and the high-pressure impregnation cylinder is improved.

[0034] The first sealing ring 150 is an O-ring.

[0035] As shown in Figures 1 to 3 some embodiments, the third sealing groove 160 is arranged on the surface of the valve body 100 towards the vacuum connector 200, and the second sealing ring 170 is arranged in the third sealing groove 160. In this way, the sealing between the valve body 100 and the vacuum connector 200 is improved.

[0036] The second sealing ring 170 is an O-ring.

[0037] As shown in Figures 1 to 3As shown, in some embodiments, the valve body 100 has a first groove, a second groove and a third groove, and a cover plate is arranged in the valve body 100 close to the first groove, a stellite seal is arranged in the first groove, a guide ring is arranged in the second groove, and a Y-shaped ring is arranged in the third groove, and the valve core 400 is sequentially arranged in the Y-shaped ring, the guide ring and the stellite seal, and the Y-shaped ring and the stellite seal form double protection for sealing between the valve core 400 and the valve body 100, and the guide ring is used for guiding the valve core 400.

[0038] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0039] In the description of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the second feature, or only indicate that the first feature is higher than the second feature in horizontal height. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the second feature, or only indicate that the first feature is lower than the second feature in horizontal height.

[0040] It should be noted that if an element is referred to as "fixed to" or "arranged on" another element, it can be directly on the other element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be a middle element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are only for the purpose of illustration and do not represent the only implementation.

[0041] In the description of the present application, it should be understood that the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0042] In the embodiments of the present application, unless specifically defined and limited otherwise, the terms "mounting", "connection", "connecting", "fixing" and the like should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0043] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Any person skilled in the art can make many possible changes and modifications to the technical solutions of the present application, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the technical solutions of the present application, by using the methods and technical contents disclosed above. Therefore, any equivalent changes made according to the shape, structure and principle of the present application, without departing from the technical solutions of the present application, should be covered within the protection scope of the present application.

Claims

1. A vacuum valve, used in a high-pressure impregnation tank, characterized in that: include: a valve body, disposed on the outer edge of the high-pressure impregnation cylinder, the valve body defining a valve cavity, the valve cavity having a first opening and a second opening, the first opening being in communication with the high-pressure impregnation cylinder; a vacuum pipe connected to the valve body corresponding to the second opening; a cylinder, disposed on the valve body; A valve core is coaxially connected to the output end of the cylinder. The valve core is inserted into the valve cavity and extends from the first opening. A closing plate portion is provided at the end of the valve core away from the cylinder. A cover body is connected to the closing plate portion. A first sealing groove is formed between the cover body and the closing plate portion. A T-ring is provided in the first sealing groove.

2. The vacuum valve according to claim 1, characterized in that: The diameters of the closing plate portion and the cover body are both larger than the diameter of the first opening.

3. The vacuum valve according to claim 1, characterized in that: A first abutment block is protruded from the edge of the closing plate toward the first sealing groove, and a second abutment block is protruded from the edge of the cover toward the first sealing groove. The first abutment block and the second abutment block abut against the T-ring respectively.

4. The vacuum valve according to claim 1, characterized in that: A second sealing groove is provided on the outer periphery of one end of the valve body away from the cylinder, and a first sealing ring is provided in the second sealing groove.

5. The vacuum valve according to claim 1, characterized in that: A third sealing groove is provided on the surface of the valve body facing the vacuum connecting pipe, and a second sealing ring is provided in the third sealing groove.

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