CN117366246A - Metal vacuum angle valve - Google Patents

Abstract

The invention discloses a metal vacuum angle valve, which comprises a valve core component and a valve body component; the valve body assembly comprises an upper valve body and a lower valve body; the valve core assembly comprises a stud and a valve core body; the stud penetrates through the bolt seat to extend into the upper valve body, and the lower end of the stud is connected with the valve core body; the lower extreme of case body is connected with the cassette, fixedly provided with metal seal ring on the cassette, and metal seal ring is used for sealing the valve port. According to the scheme, the valve core assembly seals the valve port by adopting the metal sealing ring, so that higher vacuum sealing performance can be provided. The metal sealing ring has the characteristics of good sealing performance, high temperature resistance, corrosion resistance and the like, can effectively prevent gas leakage, and ensures the vacuum degree of the system. The valve body subassembly adopts upper and lower valve body through fastening bolt's structure of connection, can provide stable support and connection.

Description

Metal vacuum angle valve

Technical Field

The invention belongs to the technical field of vacuum valves, and particularly relates to a metal vacuum angle valve.

Background

Vacuum valves refer to components of the vacuum system used in the vacuum system to change the direction of the air flow, adjust the amount of the air flow, and shut off or connect the pipes. The vacuum angle valve is named according to the structure and the characteristics, and is mainly characterized in that the outlet and the inlet are at a right angle of 90 degrees. The device can be used for controlling parameters such as flow, pressure, temperature and the like of a medium, and ensuring the stability and safety of the production process. The angle valve can be divided into: three-way angle valve, brass angle valve, flange angle valve, piston angle valve, sanitary-grade clamp angle valve, etc.

The vacuum angle valve is a common control device and mainly consists of a valve body, a valve cover, a valve clack, an executing mechanism and the like. The valve body and the valve cover are usually made of cast iron or stainless steel, and have better corrosion resistance. The valve clack is made of proper materials according to different working environments and mediums. The actuator typically employs manual, motor, pneumatic or hydraulic means for controlling the opening and closing of the valve flap. When the actuator receives an opening signal, it will disengage the valve flap from the valve seat via the transmission, thereby opening the valve. At this time, the medium can smoothly enter the valve through the valve body, and when the actuator receives a closing signal, the actuator enables the valve clack to contact with the valve seat through the transmission device, so that the valve is closed.

In the prior art, for example, publication No.: patent of CN114215953 a: the technical scheme described in the 'a housing of an angle valve and an angle valve with a housing' is as follows: one side of the angle valve body is fixedly communicated with an air inlet pipe, a shell and a fixed block, the shell is fixedly arranged on the surface of the angle valve body, and the fixed block is fixedly arranged on one side of the shell; the decompression mechanism is fixedly arranged on the inner wall of the shell.

Because such valve often need be in the vacuum environment in the use, seal structure among the prior art is sealed effectually under the vacuum environment to structural connection is complicated, inconvenient angle valve's installation and dismantlement.

Disclosure of Invention

The invention aims to provide a metal vacuum angle valve, which solves the problems that the sealing effect of a sealing structure in the prior art is poor in a vacuum environment, the structural connection is complex, and the angle valve is inconvenient to install and detach because the valve is always in the vacuum environment in the use process.

In order to solve the technical problems, the invention adopts the following technical scheme:

a metal vacuum angle valve comprises a valve core component and a valve body component; one end of the valve core assembly is arranged in the valve body assembly, and the other end of the valve core assembly extends to the outside of the valve body assembly;

the valve body assembly comprises an upper valve body and a lower valve body; the upper valve body is connected with the lower valve body through a fastening bolt, a bolt seat is arranged in the upper valve body, and the bolt seat is abutted with the inner wall of the upper valve body; the lower valve body is provided with a valve port which is communicated with the lower valve body;

the valve core assembly comprises a stud and a valve core body; the stud penetrates through the stud seat to extend into the upper valve body, the stud is in threaded connection with the stud seat, and the lower end of the stud is connected with the valve core body; the lower extreme of case body is connected with the cassette, fixedly provided with metal seal ring on the cassette, and metal seal ring is used for sealing the valve port.

According to the technical scheme, the compression spring and the clamping ring are further arranged in the upper valve body; one end of the compression spring is abutted with the bolt seat, and the other end of the compression spring is abutted with the clamping ring.

According to the technical scheme, the check ring is further arranged in the upper valve body and fixedly arranged on the side wall of the upper valve body, and the check ring is used for limiting the check ring.

According to the technical scheme, the stud is of a hollow structure, the middle of the stud is provided with the first screw, and the stud is connected with the valve core body through the first screw.

According to the technical scheme, the first ball is arranged between the first screw and the bottom of the stud, and the second ball is arranged between the valve core body and the stud.

According to the technical scheme, the end part of the stud is further provided with the limit nut, the middle part of the limit nut is provided with the screw hole, the screw hole is used for installing the second screw, and the limit nut is fixedly connected with the stud through the second screw.

According to the technical scheme, the middle part of the clamping seat is provided with the through hole, and the lower end of the valve core body penetrates through the through hole and is fixedly connected with the clamping seat through the connecting nut.

According to the technical scheme, a gasket is further arranged between the connecting nut and the clamping seat.

According to the technical scheme, the sealing ring is further arranged between the upper valve body and the lower valve body and is used for sealing a gap between the upper valve body and the lower valve body.

According to the technical scheme, the valve ports comprise a first valve port and a second valve port, the first valve port is arranged at the bottom of the lower valve body, and the second valve port is arranged at the side edge of the lower valve body.

Compared with the prior art, the invention has the following beneficial effects:

the scheme of the invention has high vacuum sealing performance: because the valve core component adopts the metal sealing ring to seal the valve port, higher vacuum sealing performance can be provided. The metal sealing ring has the characteristics of good sealing performance, high temperature resistance, corrosion resistance and the like, can effectively prevent gas leakage, and ensures the vacuum degree of the system. The valve body subassembly adopts upper and lower valve body through fastening bolt's structure of connection, can provide stable support and connection. The stud of the valve core component is in threaded connection with the stud seat, so that the fixing of the valve core and the sealing performance of the valve port can be ensured. The valve core body is fixedly connected with the stud through the clamping seat, so that the valve core body can be conveniently disassembled and maintained. The valve core can be opened and closed by rotating the stud, and the operation is simple, convenient and flexible.

Drawings

FIG. 1 is a schematic view of the internal structure of the present invention;

FIG. 2 is a schematic diagram of an explosive structure according to the present invention;

FIG. 3 is a schematic view of a partial enlarged structure of the present invention A;

fig. 4 is a schematic view of a partial enlarged structure of the present invention at B.

The marks in the figure: 100-upper valve body, 200-lower valve body, 300-fastening bolt, 400-bolt seat, 500-valve port, 600-stud, 700-valve core body, 800-clamping seat, 900-metal sealing ring, 110-compression spring, 111-snap ring, 112-retainer ring, 113-first screw, 114-first ball, 115-second ball, 116-limit nut, 117-second screw, 118-connecting nut, 119-washer, 120-sealing ring, 121-sleeve, 122-bellows, 123-first installation part, 124-second installation part.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1

As shown in fig. 1, a metal vacuum angle valve comprises a valve core component and a valve body component; one end of the valve core assembly is arranged in the valve body assembly, and the other end of the valve core assembly extends to the outside of the valve body assembly;

the valve body assembly includes an upper valve body 100 and a lower valve body 200; wherein, the upper valve body 100 and the lower valve body 200 are connected by a fastening bolt 300, a bolt seat 400 is arranged in the upper valve body 100, and the bolt seat 400 is abutted with the inner wall of the upper valve body 100; a valve port 500 is arranged on the lower valve body 200, and the valve port 500 is communicated with the lower valve body 200;

the valve core assembly includes a stud 600 and a valve core body 700; wherein, the stud 600 extends to the inside of the upper valve body 100 through the stud seat 400, and the stud 600 is in threaded connection with the stud seat 400, and the lower end of the stud 600 is connected with the valve core body 700; the lower end of the valve core body 700 is connected with a clamping seat 800, and a metal sealing ring 900 is fixedly arranged on the clamping seat 800, and the metal sealing ring 900 is used for sealing the valve port 500.

The scheme of the invention has high vacuum sealing performance: because the valve cartridge assembly seals the valve port 500 with the metal seal ring 900, a higher vacuum sealing performance may be provided. The metal sealing ring 900 has the characteristics of good sealing performance, high temperature resistance, corrosion resistance and the like, can effectively prevent gas leakage, and ensures the vacuum degree of the system.

High temperature and corrosion resistance: the all-metal structure can be manufactured by using high-temperature-resistant and corrosion-resistant materials, and can adapt to the working environment of high-temperature and corrosive media. This is particularly advantageous for applications in particular conditions.

The structure is stable and reliable: the valve body assembly adopts a structure in which the upper and lower valve bodies 200 are connected by the fastening bolts 300, and can provide stable support and connection. The stud 600 of the valve core assembly is in threaded connection with the bolt seat 400, so that the fixing of the valve core and the sealing performance of the valve port 500 can be ensured.

Flexible and convenient operation: the valve body 700 is connected with the stud 600, and can be easily disassembled and maintained. The valve core can be opened and closed by rotating the stud 600, and the operation is simple, convenient and flexible.

In conclusion, the all-metal vacuum angle valve has the advantages of high vacuum sealing performance, high temperature resistance, corrosion resistance, stable and reliable structure, flexible and convenient operation and the like. Is suitable for vacuum systems and process equipment requiring high vacuum sealing and corrosion resistance.

Example two

This embodiment is a further refinement of embodiment one.

As shown in fig. 1, a compression spring 110 and a snap ring 111 are further provided inside the upper valve body 100; one end of the compression spring 110 is abutted with the bolt seat 400, and the other end of the compression spring 110 is abutted with the clamping ring 111; a retainer ring 112 is further disposed inside the upper valve body 100, the retainer ring 112 is fixedly disposed on a side wall of the upper valve body 100, and the retainer ring 112 is used for limiting the retainer ring 111.

Through set up compression spring 110, snap ring 111 and retaining ring 112 in the inside of last valve body 100, carry out spacingly through snap ring 111 compression spring 110, the rethread retaining ring 112 carries out spacingly to snap ring 111 for compression spring 110 is fixed in the inside of last valve body 100.

When the valve is opened or closed, the compression spring 110 provides sealing pre-tightening force, so that the sealing effect of the valve is better.

As shown in fig. 1, the stud 600 has a hollow structure, a first screw 113 is provided at the middle of the stud 600, and the stud 600 is connected with the valve core body 700 through the first screw 113; a first ball 114 is provided between the first screw 113 and the bottom of the stud 600, and a second ball 115 is provided between the spool body 700 and the stud 600.

Specifically, when the stud 600 rotates, the stud 600 rotates relative to the first screw 113 through the first ball 114; the stud 600 rotates relative to the valve body 700 through the second ball 115, so that the first screw 113 is fixedly connected with the valve body 700 all the time. When the stud 600 is prevented from rotating, the connection between the first screw 113 and the valve body 700 is loosened.

The valve is controlled manually, and the torque generated by the rotation of the stud 600 by a wrench is used as power, and is connected with the valve core assembly through the first screw 113 to drive the valve core assembly to move up and down to finish the opening and closing of the valve.

During opening and closing, when the stud 600 rotates, the first ball 114 and the second ball 115 respectively perform rolling movement, so that the threaded connection of the first screw 113 and the stud 600 and the threaded connection of the first screw 113 and the valve core body 700 are prevented from loosening.

As shown in fig. 1 and 2, a limit nut 116 is further disposed at an end of the stud 600, a screw hole is disposed in the middle of the limit nut 116, and the screw hole is used for mounting a second screw 117, and the limit nut 116 and the stud 600 are fixedly connected through the second screw 117.

Further, a sleeve 121 is further provided inside the lower valve body 200, and the sleeve 121 is fixedly connected with the upper valve body 100. The valve body 700 is slidably disposed inside the sleeve 121, and the lower end of the sleeve 121 is used to limit the movement of the valve body 700.

The sleeve 121 may be fixedly connected to the upper valve body 100 by screw connection or by welding. The threaded connection is specifically as follows: an external thread is provided at the end of the sleeve 121, an internal thread is provided on the inner wall of the upper valve body 100, and the sleeve 121 is fixedly connected with the upper valve body 100 by the cooperation of the internal thread and the external thread.

Specifically, when the valve core body 700 moves upwards under the driving of the stud 600, the lower end of the valve core body 700 abuts against the lower end of the sleeve 121, so that the movement of the valve core body 700 is limited through the lower end of the sleeve 121.

Further, a bellows 122 is further disposed inside the lower valve body 200, the bellows 122 is sleeved outside the valve body 700 and the sleeve 121, one end of the bellows 122 is fixedly connected with the valve body 700, and the other end of the bellows 122 is fixedly connected with the lower valve body 200.

Further, both ends of the metal seal ring 900 are provided in an arc structure having an arc shape (as shown in fig. 4); by arranging the metal sealing ring 900 in an arc-shaped structure, the metal sealing ring 900 can better contact with the inner wall of the valve port 500 during sealing, thereby providing better sealing effect.

A connecting groove is arranged in the middle of the metal sealing ring 900, and the metal sealing ring 900 is fixedly connected with the clamping seat 800 through the connecting groove.

As shown in fig. 4, the metal seal ring 900 is welded to the cartridge 800, and is sealed with the lower valve body 200 and the valve body 700. When the stud 600 is rotated, the valve core body 700 moves upwards, the clamping seat 800 and the metal sealing ring 900 are driven to move upwards, and the valve is opened and closed otherwise; when the screw bolt 600 is closed, the limit nut 116 and the second screw 117 are arranged at the upper end of the screw bolt 600, and the limit nut 116 and the second screw 117 play a mechanical limit function when the screw bolt is closed.

The mechanical limit is specifically as follows: the limit nut 116 is in threaded connection with the stud 600; and fixedly connects the limit nut 116 and the stud 600 through the second screw 117 so that the limit nut 116 can move up and down along with the stud 600. When the valve is closed, the stud 600 moves downwards, and after the stud 600 moves for a certain distance, the limit nut 116 arranged on the stud 600 is abutted with the clamping ring 111, so that the stud 600 cannot move downwards continuously, and the mechanical limit function is achieved.

The seal adopts the elastic seal of the metal seal ring 900, and the metal seal ring 900 has the advantages of baking resistance, flexible switching, small closing torque and long service life, and is suitable for a vacuum environment.

The middle part of the clamping seat 800 is provided with a through hole, and the lower end of the valve core body 700 passes through the through hole and is fixedly connected with the clamping seat 800 through the connecting nut 118; a washer 119 is also provided between the coupling nut 118 and the cartridge 800.

As shown in fig. 3, a sealing ring 120 is further provided between the upper valve body 100 and the lower valve body 200, and the sealing ring 120 is used for sealing a gap between the upper valve body 100 and the lower valve body 200.

The seal ring 120 is specifically provided in the following manner: the upper valve body 100 is provided with a first mounting portion 123, the lower valve body 200 is provided with a second mounting portion 124, the seal ring 120 is provided on the second mounting portion 124, and the upper connector of the bellows 122 is provided above the seal ring 120 and abuts against the seal ring 120. The upper connector of the bellows 122 and the seal ring 120 are pressed by the first mounting portion 123 of the upper valve body 100, and sealing is completed.

In use, the sealing ring 120 and the upper connector of the bellows 122 are arranged between the first mounting part 123 of the upper valve body 100 and the second mounting part 124 of the lower valve body 200; so that the upper and lower valve bodies 100 and 200 are sealed by the bellows 122. When air enters from the gap between the upper valve body 100 and the lower valve body 200, the upper connector of the bellows 122 and the second mounting portion 124 of the lower valve body 200 are sealed by the sealing ring 120, and air can only enter the bellows from the upper connector of the bellows 122, so that the vacuum degree inside the valve cannot be influenced.

The valve port 500 includes a first valve port 500 and a second valve port 500, the first valve port 500 being disposed at the bottom of the lower valve body 200, and the second valve port 500 being disposed at a side of the lower valve body 200.

The working principle of the invention is as follows: the valve is controlled manually, and the torque generated by the rotation of the stud 600 by a wrench is used as power, and is connected with the valve core assembly through the first screw 113 to drive the valve core assembly to move up and down to finish the opening and closing of the valve.

During opening and closing, when the stud 600 rotates, the first ball 114 and the second ball 115 roll respectively, preventing the threaded connection of the first screw 113 with the stud 600 and the valve body 700 from loosening.

The invention has the advantages of high valve body strength and high reliability; the connection and the disassembly are convenient, and the tightness is good; the dynamic seal adopts a hydraulic corrugated pipe 122 structure, and the seal is reliable; the integrated structure is adopted, the relative positions are fixed, the rotation is not ensured, and the metal sealing ring 900 is replaced or the adjustment is not needed after the maintenance; the structure is simple and compact, the standardized and modularized design is adopted, and the weight is lighter.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A metal vacuum angle valve, characterized in that: comprises a valve core component and a valve body component; one end of the valve core assembly is arranged in the valve body assembly, and the other end of the valve core assembly extends to the outside of the valve body assembly;

the valve body assembly comprises an upper valve body (100) and a lower valve body (200); the upper valve body (100) is connected with the lower valve body (200) through a fastening bolt (300), a bolt seat (400) is arranged in the upper valve body (100), and the bolt seat (400) is abutted with the inner wall of the upper valve body (100); a valve port (500) is arranged on the lower valve body (200), and the valve port (500) is communicated with the lower valve body (200);

the valve core assembly comprises a stud (600) and a valve core body (700); the stud (600) penetrates through the stud seat (400) to extend into the upper valve body (100), the stud (600) is in threaded connection with the stud seat (400), and the lower end of the stud (600) is connected with the valve core body (700); the lower extreme of case body (700) is connected with cassette (800), and the fixed metal seal ring (900) that is provided with on cassette (800), metal seal ring (900) are used for sealing valve port (500).

2. A metal vacuum angle valve according to claim 1, characterized in that: a compression spring (110) and a clamping ring (111) are also arranged in the upper valve body (100); one end of the compression spring (110) is abutted with the bolt seat (400), and the other end of the compression spring (110) is abutted with the clamping ring (111).

3. A metal vacuum angle valve according to claim 2, characterized in that: a retainer ring (112) is further arranged in the upper valve body (100), the retainer ring (112) is fixedly arranged on the side wall of the upper valve body (100), and the retainer ring (112) is used for limiting the retainer ring (111).

4. A metal vacuum angle valve according to claim 1, characterized in that: the stud (600) is of a hollow structure, a first screw (113) is arranged in the middle of the stud (600), and the stud (600) is connected with the valve core body (700) through the first screw (113).

5. A metal vacuum angle valve as defined in claim 4, wherein: a first ball (114) is provided between the first screw (113) and the bottom of the stud (600), and a second ball (115) is provided between the valve body (700) and the stud (600).

6. A metal vacuum angle valve according to claim 1, characterized in that: and a limit nut (116) is further arranged at the end part of the stud (600), a screw hole is formed in the middle of the limit nut (116), the screw hole is used for installing a second screw (117), and the limit nut (116) is fixedly connected with the stud (600) through the second screw (117).

7. A metal vacuum angle valve according to claim 1, characterized in that: the middle part of cassette (800) is provided with the through-hole, and the lower extreme of case body (700) passes the through-hole to through coupling nut (118) and cassette (800) fixed connection.

8. A metal vacuum angle valve according to claim 7, wherein: a gasket (119) is also arranged between the connecting nut (118) and the clamping seat (800).

9. A metal vacuum angle valve according to claim 1, characterized in that: a sealing ring (120) is further arranged between the upper valve body (100) and the lower valve body (200), and the sealing ring (120) is used for sealing a gap between the upper valve body (100) and the lower valve body (200).

10. A metal vacuum angle valve according to claim 1, characterized in that: the valve port (500) comprises a first valve port (500) and a second valve port (500), wherein the first valve port (500) is arranged at the bottom of the lower valve body (200), and the second valve port (500) is arranged at the side edge of the lower valve body (200).