High-precision high-pressure liquid pneumatic control valve

Abstract

The utility model discloses a high-precision high-pressure liquid pneumatic control valve which comprises a pneumatic control valve body, a dismounting assembly is arranged on the top of the pneumatic control valve body, flow pipes are installed on the two sides of the bottom of the pneumatic control valve body, and fixing assemblies are arranged outside the flow pipes. The dismounting assembly comprises two first connecting blocks fixedly connected to the outer side of the pneumatic control valve body, first clamping grooves are formed in the first connecting blocks, and first fixing grooves are formed in the bottoms of the inner sides of the first clamping grooves. According to the pneumatic control valve, the connecting plate is pulled through the pulling block, so that the first inserting plate is separated from the clamping block in the connecting groove, meanwhile, the abutting block and the interior of the first clamping groove are extruded and shrunk when the second inserting plate is pulled, then the abutting block is separated from the interior of the first fixing groove, and then the access cover can be separated from the pneumatic control valve body; therefore, the pneumatic control valve is disassembled, and manual maintenance of the liquid pneumatic control valve is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of liquid gas control valves, and in particular relates to a high-precision and high-pressure liquid gas control valve. Background Art

[0002] High-precision and high-pressure liquid gas control is a valve structure that uses a gas source as a power drive. It is mainly used to control various liquid media, such as liquid medicine, petroleum, and organic solvents. It is promoted in industrial automation control systems and is widely used in chemical, petroleum, pharmaceutical and other fields.

[0003] After searching, it was found that the existing high-precision high-pressure liquid gas-controlled valves are fixedly connected by multiple bolts. When the high-precision high-pressure liquid gas-controlled valve needs to be repaired manually, it is necessary to use specific installation tools to disassemble it, which is time-consuming and labor-intensive, and the installation process of the gas-controlled valve is complicated. At the same time, when the flow tube of the liquid gas-controlled valve is connected to the external pipeline, the flow tube and the external pipeline are in a high-pressure working environment for a long time, which will cause leakage at the connection, resulting in poor applicability of traditional valves. Therefore, an improvement is now made to a high-precision high-pressure liquid gas-controlled valve. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a high-precision high-pressure liquid gas-controlled valve, which can facilitate the disassembly and maintenance of the gas-controlled valve body by disassembling the components. At the same time, the fixing components can quickly fix the outside of the connection between the convection tube and the external pipeline to prevent leakage, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model proposes a high-precision high-pressure liquid gas-controlled valve, comprising a gas-controlled valve body, a disassembly assembly is provided on the top of the gas-controlled valve body, flow tubes are installed on both sides of the bottom of the gas-controlled valve body, and a fixing assembly is provided outside the flow tube;

[0006] The disassembly assembly includes two first connecting blocks fixedly connected to the outside of the air control valve body, the first connecting block has a first card slot inside, the first fixing slot is inside the bottom of the inner side of the first card slot, the top of the first connecting block is provided with an inspection cover, the inspection cover is provided with a second connecting block on the side close to the first connecting block, the second connecting block has a second card slot inside, the second card slot and the inside of the first card slot are respectively sleeved with a first plug-in board and a second plug-in board, the bottom of the second plug-in board is provided with an installation slot, a spring is installed inside the installation slot, a clamping block is connected to the bottom of the spring, the clamping block contacts the inside of the first fixing slot, the outside of the air control valve body is provided with a connecting slot, a clamping block is provided inside the connecting slot, the connecting slot is communicated with the second card slot, and the end of the first plug-in board is connected to the clamping block inside the connecting slot through the second card slot.

[0007] Preferably, the fixing assembly includes a fixing rod fixedly connected to the outside of the air control valve body, the end of the fixing rod is connected to a fixing tube, the fixing tube sleeve is arranged on the outside of the flow tube, the internal thread sleeve of the fixing tube is provided with a screw, and the end of the screw is rotatably connected to an arc-shaped fixing plate.

[0008] Preferably, a bearing is sleeved on the outside of one end of the screw rod close to the arc-shaped fixing plate, and the bearing is fixedly connected to the outside of the arc-shaped fixing plate.

[0009] Preferably, a movable rod is connected to the outside of the arc-shaped fixing plate, an end of the movable rod is rotatably connected to a connecting rod, and an end of the connecting rod is rotatably connected to the inner side of the fixing tube.

[0010] Preferably, a knob is installed at the end of the screw rod, a threaded hole is opened inside the fixing tube, and the screw rod is threadably matched with the threaded hole.

[0011] Preferably, connecting plates are installed at the ends of the first plug-in board and the second plug-in board, and pulling blocks are installed outside the connecting plates.

[0012] The high-precision high-pressure liquid gas-controlled valve proposed by the utility model can bring the following beneficial effects:

[0013] 1. Pull the connecting plate by the pulling block to separate the first plug-in plate from the card block inside the connecting groove. At the same time, the second plug-in plate is pulled and the pressing block is squeezed and contracted with the inside of the first card slot, so that the pressing block is separated from the inside of the first fixed slot. Then, the inspection cover can be separated from the air-controlled valve body, thereby realizing the disassembly of the air-controlled valve and facilitating manual maintenance of the liquid air-controlled valve.

[0014] 2. Turn the screw clockwise through the knob to make the screw rotate downward inside the threaded hole, and then push the arc fixing plate during the rotation process, so that the arc fixing plate drives the movable rod and the connecting rod to rotate, and then fix the connection between the external pipe and the flow pipe through the arc fixing plate to avoid leakage between the flow pipe and the external pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0016] In the attached picture:

[0017] Figure 1 The utility model is a schematic diagram of the overall structure of a high-precision high-pressure liquid gas-controlled valve.

[0018] Figure 2The utility model is a schematic diagram of the internal structure of a high-precision high-pressure liquid gas-controlled valve.

[0019] Figure 3 The utility model is a schematic diagram of the explosion structure of a high-precision high-pressure liquid gas control valve.

[0020] Figure 4 A high-precision high-pressure liquid gas control valve of the utility model Figure 1 Schematic diagram of the structure at point A in the middle.

[0021] Figure 5 A high-precision high-pressure liquid gas control valve of the utility model Figure 2 Schematic diagram of the structure at point B in the middle.

[0022] Figure 6 A high-precision high-pressure liquid gas control valve of the utility model Figure 3 Schematic diagram of the structure at point C in the middle.

[0023] Figure 7 This is a schematic diagram of the combined structure of the first plug-in board and the second plug-in board of a high-precision high-pressure liquid gas control valve of the utility model

[0024] In the figure: 1. air control valve body; 2. first plug-in board; 3. second slot; 4. second connecting block; 5. inspection cover; 6. arc-shaped fixing plate; 7. screw; 8. threaded hole; 9. bearing; 10. movable rod; 11. first slot; 12. connecting rod; 13. fixing pipe; 14. flow pipe; 15. connecting plate; 16. pulling block; 17. second plug-in board; 18. pressing block; 19. mounting slot; 20. spring; 21. connecting slot; 22. first connecting block; 23. first fixing slot; 24. knob; 25. block. DETAILED DESCRIPTION

[0025] like Figure 1 to Figure 7 As shown, the embodiment of the utility model proposes a high-precision high-pressure liquid gas-controlled valve, comprising a gas-controlled valve body 1, a disassembly assembly is provided on the top of the gas-controlled valve body 1, flow tubes 14 are installed on both sides of the bottom of the gas-controlled valve body 1, and a fixing assembly is provided outside the flow tube 14;

[0026] The disassembly assembly includes two first connecting blocks 22 fixedly connected to the outside of the gas control valve body 1, the first connecting block 22 is provided with a first card slot 11 inside, the first fixing slot 23 is provided at the inner bottom of the first card slot 11, the top of the first connecting block 22 is provided with an inspection cover 5, the inspection cover 5 is provided with a second connecting block 4 on the side close to the first connecting block 22, the inside of the second connecting block 4 is provided with a second card slot 3, the second card slot 3 and the inside of the first card slot 11 are respectively sleeved with the first plug-in board 2 and the second plug-in board 17, the bottom of the second plug-in board 17 is provided with a mounting groove 19, the inside of the mounting groove 19 is provided with a spring 20, the bottom of the spring 20 is connected with a tightening block 18, the tightening block 18 is in contact with the inside of the first fixing slot 23, the outside of the gas control valve body 1 is provided with a connecting groove 21, the inside of the connecting groove 21 is provided with a card block 25, the connecting groove 21 is communicated with the second card slot 3, and the end of the first plug-in board 2 is connected to the card block 25 inside the connecting groove 21 through the second card slot 3.

[0027] like Figure 4 As shown, the fixing assembly includes a fixing rod 26 fixedly connected to the outside of the gas control valve body 1, the end of the fixing rod 26 is connected to the fixing pipe 13, the fixing pipe 13 is sleeved on the outside of the flow pipe 14, the internal thread sleeve of the fixing pipe 13 is provided with a screw 7, and the end of the screw 7 is rotatably connected to the arc-shaped fixing plate 6. The screw 7 drives the movement of the arc-shaped fixing plate 6, and external pipes of different diameters can be fixed, which increases the adaptability during fixing.

[0028] like Figure 4 As shown, a bearing 9 is sleeved on the outer side of one end of the screw rod 7 close to the arc-shaped fixing plate 6 , and the bearing 9 is fixedly connected to the outer side of the arc-shaped fixing plate 6 , so that the screw rod 7 pushes the arc-shaped fixing plate 6 to move.

[0029] like Figure 4 As shown, the outside of the arc-shaped fixed plate 6 is connected to a movable rod 10, and the end of the movable rod 10 is rotatably connected to a connecting rod 12. The end of the connecting rod 12 is rotatably connected to the inner side of the fixed tube 13, thereby increasing the stability of the arc-shaped fixed plate 6 when the screw 7 drives the curved fixed plate 6 to move and preventing deviation when the curved fixed plate 6 is fixed to the external pipeline. A knob 24 is installed at the end of the screw 7, and a threaded hole 8 is provided inside the fixed tube 13. The screw 7 is threadedly matched with the threaded hole 8. The screw 7 is driven to rotate synchronously by the rotation of the knob 24, so that the screw 7 and the threaded hole 8 threads cooperate with each other to drive the arc-shaped fixed plate 6 to fix the flow tube 14 to the external pipeline to prevent water seepage.

[0030] like Figure 3 and Figure 7 As shown, a connecting plate 15 is installed at the ends of the first plug-in board 2 and the second plug-in board 17, and a pulling block 16 is installed outside the connecting plate 15, so that the first plug-in board 2 and the second plug-in board 17 can be pushed and pulled conveniently through the pulling block 16 outside the connecting plate 15.

[0031] Working principle:

[0032] When it is necessary to install the inspection cover 5 on the top of the air-controlled valve body 1, the inspection cover 5 is placed on the top of the air-controlled valve body 1 so that the second connecting block 4 on the outside of the inspection cover 5 is aligned with the top of the first connecting block 22, and then the first plug-in board 2 and the second plug-in board 17 are aligned with the inside of the second card slot 3 and the first card slot 11 respectively, and then the connecting plate 15 is pushed by the pulling block 16 to move the first plug-in board 2 and the second plug-in board 17 inside the second card slot 3 and the first card slot 11, and then during the movement, the first plug-in board 2 contacts the inside of the connecting slot 21 through the first card slot 11, at this time, the clamping block 18 at the bottom of the second plug-in board 17 contacts the clamping block 25 inside the first card slot 11, and then during the contact process, the clamping block 18 is squeezed against the inner side of the first card slot 11, and then during the squeezing process, the spring 20 drives the clamping block 18 to shrink inside the installation slot 19, and when the clamping block 18 contacts the first fixing slot 23, the spring 20 generates a reaction force so that the clamping block 18 The first fixing groove 23 is pressed against the inside of the first fixing groove 23, thereby fixing the inspection cover 5 to the air-controlled valve body 1. When the inside of the air-controlled valve body 1 needs to be inspected, the connecting plate 15 is pulled by the pulling block 16 to separate the first plug-in plate 2 from the card block 25 inside the connecting groove 21. At the same time, the second plug-in plate 17 is pulled while the pressing block 18 is pressed and contracted against the inside of the first card groove 11, so that the pressing block 18 is separated from the inside of the first fixing groove 23, and the inspection cover 5 can be separated from the air-controlled valve body 1. , thereby realizing the disassembly of the gas-controlled valve, and facilitating manual maintenance of the liquid gas-controlled valve. When the flow tube 14 is connected to the external pipeline, the screw rod 7 is rotated clockwise by the knob 24, so that the screw rod 7 rotates downward inside the threaded hole 8, and then the arc-shaped fixing plate 6 is pushed during the rotation process, so that the arc-shaped fixing plate 6 drives the movable rod 10 and the connecting rod 12 to rotate, and then the connection between the external pipeline and the flow tube 14 is fixed by the arc-shaped fixing plate 6 to avoid leakage between the flow tube 14 and the external pipeline.

[0033] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0034] The above are only embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A high-precision high-pressure liquid gas-controlled valve, comprising a gas-controlled valve body (1), characterized in that: A disassembly component is provided on the top of the air-controlled valve body (1), flow tubes (14) are installed on both sides of the bottom of the air-controlled valve body (1), and a fixing component is provided outside the flow tube (14); The disassembly assembly comprises two first connection blocks (22) fixedly connected to the outside of the air control valve body (1); a first clamping groove (11) is provided inside the first connection block (22); a first fixing groove (23) is provided at the bottom of the inner side of the first clamping groove (11); an inspection cover (5) is provided on the top of the first connection block (22); a second connection block (4) is provided on a side of the inspection cover (5) close to the first connection block (22); a second clamping groove (3) is provided inside the second connection block (4); a first plug-in board (2) and a second plug-in board (2) are respectively sleeved on the inside of the second clamping groove (3) and the first clamping groove (11); A connecting plate (17), a mounting groove (19) is provided at the bottom of the second plug-in plate (17), a spring (20) is installed inside the mounting groove (19), a pressing block (18) is connected to the bottom of the spring (20), the pressing block (18) is in contact with the inside of the first fixing groove (23), a connecting groove (21) is provided on the outside of the air-controlled valve body (1), a clamping block (25) is provided inside the connecting groove (21), the connecting groove (21) is communicated with the second clamping groove (3), and the end of the first plug-in plate (2) is connected to the clamping block (25) inside the connecting groove (21) through the second clamping groove (3).

2. A high-precision high-pressure liquid gas-controlled valve according to claim 1, characterized in that: The fixing assembly comprises a fixing rod (26) fixedly connected to the outside of the air control valve body (1), the end of the fixing rod (26) is connected to a fixing tube (13), the fixing tube (13) is sleeved on the outside of the flow tube (14), the internal thread of the fixing tube (13) is sleeved with a screw rod (7), and the end of the screw rod (7) is rotatably connected to an arc-shaped fixing plate (6).

3. A high-precision high-pressure liquid gas-controlled valve according to claim 2, characterized in that: A bearing (9) is sleeved on the outside of one end of the screw rod (7) close to the arc-shaped fixing plate (6), and the bearing (9) is fixedly connected to the outside of the arc-shaped fixing plate (6).

4. A high-precision high-pressure liquid gas-controlled valve according to claim 3, characterized in that: The outside of the arc-shaped fixed plate (6) is connected to a movable rod (10), the end of the movable rod (10) is rotatably connected to a connecting rod (12), and the end of the connecting rod (12) is rotatably connected to the inside of the fixed tube (13).

5. A high-precision high-pressure liquid gas-controlled valve according to claim 3, characterized in that: A knob (24) is installed at the end of the screw rod (7), a threaded hole (8) is provided inside the fixing tube (13), and the screw rod (7) is threadably matched with the threaded hole (8).

6. A high-precision high-pressure liquid gas-controlled valve according to claim 1, characterized in that: A connecting plate (15) is installed at the end of the first plug-in board (2) and the second plug-in board (17), and a pulling block (16) is installed outside the connecting plate (15).

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