Low-temperature stop valve with external transmission mechanism

Abstract

The utility model discloses a low-temperature stop valve with an external transmission mechanism, which belongs to the field of low-temperature stop valves and comprises a stop valve component, the stop valve component comprises a valve body, a protective tube is fixedly mounted at the upper end of the valve body, a mounting disc is fixedly connected to the upper end of the protective tube, an angle measuring line is arranged on the surface of the mounting disc, and a ball valve is rotatably connected into the valve body. The upper end of the ball valve is fixedly connected with a rotating rod, the rotating rod is rotationally connected into the protection pipe, one side of the rotating rod is fixedly connected with a pointer, the two sides of the valve body are each provided with a filter element and a filter screen, a filter rod is detachably installed in each filter element, and the two sides of the valve body are each fixedly connected with a supporting leg; according to the low-temperature stop valve, the flow of clear water can be accurately controlled through the arranged stop valve assembly, so that the practicability of the low-temperature stop valve is enhanced, meanwhile, through mutual cooperation of the structures, multiple filtering operation can be conveniently conducted on the clear water, and then the use convenience of the low-temperature stop valve can be improved.

Description

Technical Field

[0001] This utility model relates to the field of cryogenic shut-off valves, specifically a cryogenic shut-off valve with an external transmission mechanism. Background Technology

[0002] A cryogenic shut-off valve is a valve suitable for cryogenic environments (-196℃ to -150℃), mainly used in cryogenic liquid storage and transportation equipment. The "cryopreneurial shut-off valve with external transmission mechanism" disclosed in application number "202320303945.5" is an increasingly mature technology. Its design "places the valve's transmission thread at the top, effectively reducing contact between the transmission thread and the cryogenic medium, avoiding increased wear coefficient due to valve stem transmission in cryogenic environments. Simultaneously, because the sealing packing is located below the transmission thread, it prevents particles generated by wear from contacting the medium used (such as oxygen, nitrogen, argon, or liquefied natural gas)." While the valve is described as having "gas-phase contact," this cryogenic shut-off valve has the following drawbacks during use: Although the valve's transmission thread and lower valve stem provide protection, it is inconvenient to adjust the flow rate as needed, thus affecting its ease of use. Therefore, it is necessary to provide a shut-off valve that allows for precise flow control and enhances practicality. Furthermore, this valve is not convenient for filtering water flow as needed, further impacting its ease of use. Therefore, it is necessary to provide a cryogenic shut-off valve that facilitates water filtration and improves ease of use. Utility Model Content

[0003] This utility model provides a cryogenic shut-off valve with an external transmission mechanism, aiming to solve the problems of existing cryogenic shut-off valves being inconvenient for precise flow control and multiple filtration of clean water.

[0004] To achieve the above objectives, this utility model provides a cryogenic shut-off valve with an external transmission mechanism, including a shut-off valve assembly;

[0005] The shut-off valve assembly includes a valve body, a protective tube fixedly installed at the upper end of the valve body, an installation plate fixedly connected to the upper end of the protective tube, a measuring line on the surface of the installation plate, a ball valve rotatably connected inside the valve body, a rotating rod fixedly connected to the upper end of the ball valve, the rotating rod rotatably connected inside the protective tube, a pointer fixedly connected to one side of the rotating rod, filter elements and filter screens respectively installed on both sides of the valve body, a filter rod detachably installed inside the filter element, support legs fixedly connected to both sides of the valve body, a support block detachably installed at the lower end of the support leg, and an anti-slip plate installed inside the support block.

[0006] As a preferred embodiment of this utility model, both sides of the valve body are fixedly connected with connecting flanges, the lower end of the support block is provided with an installation groove, and the anti-slip plate is installed inside the installation groove.

[0007] In a preferred embodiment of this utility model, the surface of the connecting flange is provided with a connecting groove, the filter screen is installed inside the connecting groove, a plurality of locking blocks are fixedly connected to the inner wall of the connecting groove, the surface of the filter screen is provided with a plurality of locking slots, and the plurality of locking blocks are locked inside the locking slots.

[0008] As a preferred embodiment of this utility model, the lower end of the support leg is provided with a limiting hole, and the upper end of the support block is fixedly connected to a limiting shaft, which is inserted into the limiting hole.

[0009] As a preferred embodiment of this utility model, a toggle handle is fixedly connected to the upper end of the rotating rod.

[0010] In a preferred embodiment of this utility model, threaded grooves are provided at both ends of the filter rod, and fixed rings are fixedly connected to both ends of the filter element. The filter rod is threadedly connected to the inside of the fixed rings through the threaded grooves.

[0011] In a preferred embodiment of this invention, the filter rod is made of activated carbon.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. When precisely adjusting the flow rate of the cryogenic shut-off valve, it is only necessary to control the toggle handle to rotate the rotating rod, which in turn rotates the ball valve. At the same time, as the rotating rod rotates, the pointer can point to different positions of the measuring line, thus enabling precise control of the overlapping area between the ball valve opening and the valve body. Compared with the cryogenic shut-off valve in the existing technology of "cryogenic shut-off valve with external transmission mechanism", this utility model, through the cooperation of the above structures, can facilitate precise control of the flow rate of the cryogenic shut-off valve, thereby enhancing the practicality of the cryogenic shut-off valve.

[0014] 2. When filtering clean water, first connect the low-temperature shut-off valve to the water pipe. At this time, the clean water passes through the valve body and the filter screens at both ends can filter large particles in the clean water. At the same time, the filter element and filter rod can perform multiple filtration operations on the small particles in the clean water. Compared with the low-temperature shut-off valve in the existing technology of "external transmission mechanism low-temperature shut-off valve", this utility model can facilitate multiple filtration operations on clean water through the cooperation of the above structures, thereby improving the ease of use of the low-temperature shut-off valve. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is an anatomical diagram of the valve body structure of this utility model;

[0017] Figure 3 This is a bottom view of the valve body structure of this utility model;

[0018] Figure 4 This is an exploded view of the filter structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the ball valve structure of this utility model;

[0020] Figure 6 This is a disassembled diagram of the filter element structure of this utility model.

[0021] In the diagram: 100, gate valve assembly; 101, valve body; 102, protective tube; 103, mounting plate; 104, measuring line; 105, ball valve; 106, rotating rod; 107, pointer; 108, filter element; 109, filter rod; 110, filter screen; 120, support leg; 130, support block; 140, anti-slip plate; 111, connecting flange; 112, mounting groove; 121, connecting groove; 122, locking block; 123, locking groove; 131, limiting hole; 132, limiting shaft; 141, toggle handle; 151, threaded groove; 152, retaining ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-6 This utility model provides a cryogenic shut-off valve with an external transmission mechanism, including a shut-off valve assembly 100;

[0024] The shut-off valve assembly 100 includes a valve body 101, a protective tube 102 fixedly installed at the upper end of the valve body 101, a mounting plate 103 fixedly connected at the upper end of the protective tube 102, a measuring line 104 on the surface of the mounting plate 103, a ball valve 105 rotatably connected inside the valve body 101, a rotating rod 106 fixedly connected at the upper end of the ball valve 105, the rotating rod 106 rotatably connected inside the protective tube 102, a pointer 107 fixedly connected to one side of the rotating rod 106, a filter element 108 and a filter screen 110 respectively installed on both sides of the valve body 101, a filter rod 109 detachably installed inside the filter element 108, and a support leg 120 fixedly connected to both sides of the valve body 101, a support block 130 detachably installed at the lower end of the support leg 120, and an anti-slip plate 140 installed inside the support block 130.

[0025] In one specific embodiment, the set shut-off valve assembly 100 not only enables precise control of the water flow rate, thereby enhancing the practicality of the cryogenic shut-off valve, but also facilitates multiple filtration operations on the water through the cooperation of the above structures, thus improving the ease of use of the cryogenic shut-off valve. In use, the cryogenic shut-off valve is first installed. When water flows through the valve body 101, the control lever 141 rotates the rotating rod 106, which in turn rotates the ball valve 105. As the rotating rod 106 rotates, the pointer 107 points to different positions on the vector angle line 104, thereby enabling precise control of the overlap area between the opening of the ball valve 105 and the valve body 101. At the same time, the filter screens 110 at both ends can filter large particles in the water. In addition, the filter element 108 and the filter rod 109 can perform multiple filtration operations on the small particles in the water, thereby improving the ease of use of the cryogenic shut-off valve.

[0026] Please see Figures 2-6 Both sides of the valve body 101 are fixedly connected with connecting flanges 111, and the lower end of the support block 130 is provided with an installation groove 112, and the anti-slip plate 140 is installed inside the installation groove 112.

[0027] In one specific embodiment, the connecting flange 111 can enhance the connection stability between the valve body 101 and the water inlet pipe, and the mounting groove 112 can improve the installation stability and disassembly convenience of the anti-slip plate 140.

[0028] Please see Figures 2-6 The surface of the connecting flange 111 is provided with a connecting groove 121. The filter screen 110 is installed inside the connecting groove 121. Several locking blocks 122 are fixedly connected to the inner wall of the connecting groove 121. Several locking slots 123 are provided on the surface of the filter screen 110. Several locking blocks 122 are locked inside the locking slots 123.

[0029] In one specific embodiment, the connecting groove 121, together with the locking block 122, can enhance the installation strength of the filter screen 110, and the filter screen 110 can be removed from the connecting groove 121 for disassembly.

[0030] Please see Figures 2-6 The lower end of the support leg 120 has a limiting hole 131, and the upper end of the support block 130 is fixedly connected to a limiting shaft 132, which is inserted into the limiting hole 131.

[0031] In one specific embodiment, the limiting shaft 132 is inserted into the limiting hole 131, thereby improving the speed and smoothness of disassembly and assembly between the support block 130 and the support leg 120.

[0032] Please see Figures 2-6 A toggle handle 141 is fixedly connected to the upper end of the rotating rod 106.

[0033] In one specific embodiment, the toggle handle 141 can control the rotation of the rotating rod 106, improving the convenience of adjusting the angle of the ball valve 105.

[0034] Please see Figures 2-6 Both ends of the filter rod 109 are provided with threaded grooves 151, and both ends of the filter element 108 are fixedly connected with retaining rings 152. The filter rod 109 is threadedly connected to the inside of the retaining rings 152 through the threaded grooves 151.

[0035] In one specific embodiment, the filter rod 109 is threaded inside the retaining ring 152, which can improve the connection strength between it and the filter element 108.

[0036] Please see Figures 2-6 The filter rod 109 is made of activated carbon.

[0037] In one specific embodiment, the microporous structure of the activated carbon filter rod 109 can improve the filtration effect on clean water and enhance the practicality of the low-temperature shut-off valve.

[0038] Working principle: When in use, the cryogenic shut-off valve is first installed. When water flows through the valve body 101, the ball valve 105 is rotated by controlling the rotating rod 106. As the rotating rod 106 rotates, the pointer 107 points to different positions on the vector angle line 104, thereby accurately controlling the overlapping area between the opening of the ball valve 105 and the valve body 101. At the same time, the filter screens 110 at both ends can filter large particles in the water. In addition, the filter element 108 and the filter rod 109 can perform multiple filtration operations on small particles in the water, thereby improving the ease of use of the cryogenic shut-off valve.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. Cryogenic stop valve with external drive, characterized in that, Include: The stop valve assembly (100) includes a valve body (101), the upper end of the valve body (101) is fixedly installed with a protective tube (102), the upper end of the protective tube (102) is fixedly connected with a mounting disc (103), the surface of the mounting disc (103) is provided with a graduated line (104), the inside of the valve body (101) is rotatably connected with a ball valve (105), the upper end of the ball valve (105) is fixedly connected with a rotating rod (106), the rotating rod (106) is rotatably connected in the inside of the protective tube (102), one side of the rotating rod (106) is fixedly connected with a pointer (107), both sides of the valve body (101) are respectively provided with a filter core (108) and a filter screen (110), the inside of the filter core (108) is detachably installed with a filter stick (109), both sides of the valve body (101) are fixedly connected with a supporting leg (120), the lower end of the supporting leg (120) is detachably installed with a supporting block (130), the inside of the supporting block (130) is installed with an anti-skid piece (140).

2. The externally piloted cryogenic stop valve according to claim 1, characterized in that: Both sides of the valve body (101) are fixedly connected with a connecting flange (111), the lower end of the supporting block (130) is provided with a mounting groove (112), and the anti-skid piece (140) is installed in the mounting groove (112).

3. The externally piloted cryogenic stop valve according to claim 2, characterized in that: The surface of the connecting flange (111) is provided with a connecting groove (121), the filter screen (110) is installed in the connecting groove (121), a plurality of clamping blocks (122) are fixedly connected to the inner wall of the connecting groove (121), and a plurality of clamping grooves (123) are formed in the surface of the filter screen (110).

4. The externally piloted cryogenic stop valve of claim 1, wherein: The lower end of the supporting leg (120) is provided with a limiting hole (131), and the upper end of the supporting block (130) is fixedly connected with a limiting shaft (132), the limiting shaft (132) is inserted into the limiting hole (131).

5. The externally piloted cryogenic stop valve of claim 1, wherein: The upper end of the rotating rod (106) is fixedly connected with a knob (141).

6. The externally piloted cryogenic stop valve of claim 1, wherein: Both ends of the filter stick (109) are provided with threaded grooves (151), both ends of the filter core (108) are fixedly connected with fixing rings (152), and the filter stick (109) is screw-connected in the inside of the fixing ring (152) through the threaded grooves (151).

7. The externally piloted cryogenic stop valve of claim 1, wherein: The filter stick (109) is made of activated carbon.

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