High-pressure control valve

Abstract

The utility model relates to the technical field of high-pressure valves, and discloses a high-pressure control valve which comprises two installation plates, a plurality of bolt holes are formed in the opposite faces of the two installation plates, a high-pressure valve body is fixedly installed on the opposite faces of the two installation plates, and the high-pressure valve body is provided with a control mechanism. The control mechanism comprises a fixing column, a fixing block, a hand wheel, a worm, a worm gear, a threaded rod, a moving block and the high-pressure control valve, the lead angle of the worm is smaller than the equivalent friction angle between meshing gear teeth, a mechanism of the worm gear and the worm has self-locking performance, reverse self-locking can be achieved, the worm can only be driven by the worm, the worm cannot be driven by the worm gear, and the high-pressure control valve is convenient to operate. When the high-pressure valve is used, the reverse self-locking function can be achieved, the safety protection effect can be achieved, the threaded rod is prevented from rotating, then the flow control head is prevented from spinning in the gas rising process, the flow control head is prevented from moving, and the controllability of the high-pressure valve is improved.

Description

Technical Field

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

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and regulate and control the parameters of the conveyed medium (temperature, pressure, and flow). Based on their function, they can be categorized as shutoff valves, check valves, and regulating valves. Valves are control components in fluid conveying systems, performing functions such as shutoff, regulation, flow diversion, backflow prevention, pressure stabilization, flow diversion, and overflow and pressure relief. Valves used in fluid control systems come in a wide variety of types and specifications, from the simplest shutoff valve to the most complex valves used in automated control systems.

[0003] Existing high-pressure control valves generally block the air inlet through the valve stem and valve head to control the flow of the high-pressure valve. Since the valve head is fully open, there is a certain gap between it and the air inlet, and the gas may spin during the rising process, causing the valve stem to rotate, resulting in the valve head being out of control and causing inconvenience in use. In view of this, a high-pressure control valve is proposed. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a high-pressure control valve, which solves the problem that high-pressure valves are easily failed due to gas spin.

[0005] To achieve the above-mentioned purpose of improving the stability of the high-pressure valve, the present invention provides the following technical solution: a high-pressure control valve, comprising two mounting plates, wherein a plurality of bolt holes are formed on opposite sides of the two mounting plates, and a high-pressure valve body is fixedly mounted on the opposite sides of the two mounting plates;

[0006] The high-pressure valve body is provided with a control mechanism, which includes a fixed column, a fixed block, a hand wheel, a worm, a worm gear, a threaded rod, a moving block, a flow control head, a rubber sealing ring, an air inlet and an air outlet;

[0007] Preferably, the fixing column is fixedly mounted on the outer surface of the high-pressure valve body, and the fixing block is fixedly mounted on the upper surface of the fixing column;

[0008] The left end of the worm is rotatably connected to the inner wall of the fixed block, and the right end of the worm passes through the right surface of the fixed block;

[0009] Preferably, the handwheel is fixedly mounted on the right end of the worm, and the worm wheel is meshingly connected to the outer surface of the worm;

[0010] The threaded rod is fixedly sleeved on the inner surface of the worm gear, and the upper end of the threaded rod is rotatably connected to the lower surface of the top plate of the fixed block;

[0011] Preferably, the moving block is sleeved on the outer surface of the threaded rod, and the moving block is sleeved on the inner surface of the fixed column;

[0012] Preferably, the flow control head is fixedly installed on the lower surface of the moving block, and the rubber sealing ring is fixedly installed on the outer surface of the flow control head.

[0013] Preferably, the air inlet is formed in the left surface of the high-pressure valve body, and the air outlet is formed in the right surface of the high-pressure valve body.

[0014] Compared with the prior art, the high-pressure control valve has the following beneficial effects:

[0015] 1. The high-pressure control valve, the lead angle of the worm in the utility model is less than the equivalent friction angle between the meshing gear teeth, the mechanism of the worm wheel and the worm has self-locking property, reverse self-locking can be realized, that is, only the worm wheel can be driven by the worm, but the worm cannot be driven by the worm wheel, the reverse self-locking property used in the high-pressure valve can play a safety protection role, thereby preventing the threaded rod from rotating, and further preventing the flow control head from spinning in the process of rising of the gas, thereby preventing the flow control head from being displaced, and further improving the controllability of the high-pressure valve.

[0016] 2. The high-pressure control valve, the rubber sealing ring fixedly installed on the outer surface of the flow control head can extrude the inner wall of the air inlet, thereby filling the gap between the air inlet and the flow control head through the deformation of the rubber sealing ring, and the sealing property is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a high-pressure control valve structure schematic view of the utility model;

[0018] Fig. 2 It is a fixed block internal structure schematic view of the utility model;

[0019] Fig. 3 It is a high-pressure valve body internal structure schematic view of the utility model.

[0020] In the drawing: 1, mounting plate; 2, bolt hole; 3, high-pressure valve body; 4, fixed column; 5, fixed block; 6, hand wheel; 7, worm; 8, worm wheel; 9, threaded rod; 10, moving block; 11, flow control head; 12, rubber sealing ring; 13, air inlet; 14, air outlet. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative efforts belong to the scope of the present application.

[0022] Please refer to Figs. 1-3 The present application provides a new technical solution: a high-pressure control valve, comprising two mounting plates 1, a plurality of bolt holes 2 are formed on the opposite surfaces of the two mounting plates 1, and a high-pressure valve body 3 is fixedly installed on the opposite surfaces of the two mounting plates 1.

[0023] The high-pressure valve body 3 is provided with a control mechanism, and the control mechanism comprises a fixed column 4, a fixed block 5, a hand wheel 6, a worm 7, a worm wheel 8, a threaded rod 9, a moving block 10, a flow control head 11, a rubber sealing ring 12, an air inlet 13 and an air outlet 14.

[0024] Further, the fixed column 4 is fixedly installed on the outer surface of the high-pressure valve body 3, and the fixed block 5 is fixedly installed on the upper surface of the fixed column 4.

[0025] The left end of the worm 7 is rotatably connected to the inner wall of the fixed block 5, and the right end of the worm 7 penetrates through the right surface of the fixed block 5.

[0026] Further, the hand wheel 6 is fixedly installed on the right end of the worm 7, and the worm wheel 8 is meshingly connected to the outer surface of the worm 7.

[0027] The threaded rod 9 is fixedly sleeved on the inner surface of the worm wheel 8, and the upper end of the threaded rod 9 is rotatably connected to the lower surface of the top plate of the fixed block 5.

[0028] Further, the moving block 10 is threadedly sleeved on the outer surface of the threaded rod 9, and the moving block 10 is slidably sleeved on the inner surface of the fixed column 4.

[0029] Further, the flow control head 11 is fixedly installed on the lower surface of the moving block 10, and the rubber sealing ring 12 is fixedly installed on the outer surface of the flow control head 11.

[0030] Further, the air inlet 13 is formed on the left surface of the high-pressure valve body 3, and the air outlet 14 is formed on the right surface of the high-pressure valve body 3.

[0031] When the high-pressure control valve is in use, the hand wheel 6 drives the left surface fixedly installed worm 7 to rotate, the worm 7 outer surface meshing connection worm 8 rotates, the worm 8 drives the inner surface fixedly sleeved threaded rod 9 to rotate, the threaded rod 9 outer surface threaded sleeve moving block 10 continuously moves downwards through the thread provided on the outer surface of the threaded rod 9, the moving block 10 moves downwards on the inner surface of the fixed column 4, the moving block 10 moves downwards on the lower surface fixedly installed flow control head 11, the flow control head 11 drives the outer surface fixedly installed rubber sealing ring 12 to move downwards, the rubber sealing ring 12 extrudes the inner wall of the air inlet 13 to block, thereby sealing the air inlet, and when the lead angle of the worm in the utility model is less than the equivalent friction angle between the meshing teeth, the mechanism of the worm and the worm wheel has self-locking property, reverse self-locking can be realized, that is, only the worm can drive the worm wheel, but the worm wheel cannot drive the worm, reverse self-locking can be used in the high-pressure valve to play a safety protection role, thereby preventing the threaded rod 9 from rotating, preventing the flow control head 11 from spinning in the process of gas rising, thereby preventing the flow control head 11 from being displaced, and improving the controllability of the high-pressure valve.

[0032] The high-pressure control valve, the lead angle of the worm in the utility model is less than the equivalent friction angle between the meshing teeth, the mechanism of the worm and the worm wheel has self-locking property, reverse self-locking can be realized, that is, only the worm can drive the worm wheel, but the worm wheel cannot drive the worm, reverse self-locking can be used in the high-pressure valve to play a safety protection role, thereby preventing the threaded rod 9 from rotating, preventing the flow control head 11 from spinning in the process of gas rising, thereby preventing the flow control head 11 from being displaced, and improving the controllability of the high-pressure valve, and the high-pressure control valve can extrude the inner wall of the air inlet 13 through the rubber sealing ring 12 fixedly installed on the outer surface of the flow control head 11, thereby filling the gap between the air inlet 13 and the flow control head 11 through the deformation of the rubber sealing ring 12, and improving the sealing property.

[0033] Working principle: the high pressure control valve uses, through rotating hand wheel 6, hand wheel 6 drives the left surface fixed installation's worm 7 rotation, at this time, the worm 7 outer surface engagement connection's worm wheel 8 occurs rotation, worm wheel 8 drives the inner surface fixed cover set's threaded rod 9 rotation, at this time, threaded rod 9 outer surface screw thread set's moving block 10 through the threaded rod 9 outer surface set's screw thread continuously moves down, at this time, moving block 10 is in the inner surface of fixed column 4 and moves down, moving block 10 is to the lower surface fixed installation's flow control head 11 and moves down, simultaneously, flow control head 11 drives the outer surface fixed installation's rubber sealing ring 12 and moves down, at this time, rubber sealing ring 12 extrudes the inner wall of inlet 13 and carries out blockage, to carry out sealing to inlet, and when the lead angle of worm in the utility model is less than the equivalent friction angle between meshing gear teeth, the mechanism of worm wheel and worm has self-locking, can realize reverse self-locking, namely only can be driven by worm wheel by worm, but cannot be driven by worm wheel by worm, in the high pressure valve of the utility model, using can carry out reverse self-locking and can play the safety protection effect, to prevent threaded rod 9 rotation, in turn, prevent flow control head 11 from spinning in the process of gas rising, to place flow control head 11 and shift, in turn, improve the controllability of high pressure valve.

[0034] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the changes, modifications, equivalents, substitutions and variations of the embodiments can be made by those skilled in the art without departing from the spirit and principles of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A high-pressure control valve, comprising two mounting plates (1), wherein opposite surfaces of the two mounting plates (1) are provided with a plurality of bolt holes (2), characterized in that: The high-pressure valve body (3) is fixedly mounted on opposite surfaces of the two mounting plates (1); The high-pressure valve body (3) is provided with a control mechanism, which includes a fixed column (4), a fixed block (5), a hand wheel (6), a worm (7), a worm gear (8), a threaded rod (9), a moving block (10), a flow control head (11), a rubber sealing ring (12), an air inlet (13) and an air outlet (14); The fixing column (4) is fixedly mounted on the outer surface of the high-pressure valve body (3), and the fixing block (5) is fixedly mounted on the upper surface of the fixing column (4); The left end of the worm (7) is rotatably connected to the inner wall of the fixed block (5), and the right end of the worm (7) passes through the right surface of the fixed block (5); The hand wheel (6) is fixedly mounted on the right end of the worm (7), and the worm wheel (8) is meshedly connected to the outer surface of the worm (7); The threaded rod (9) is fixedly sleeved on the inner surface of the worm wheel (8), and the upper end of the threaded rod (9) is rotatably connected to the lower surface of the top plate of the fixed block (5); The moving block (10) is threadedly sleeved on the outer surface of the threaded rod (9), and the moving block (10) is slidably sleeved on the inner surface of the fixed column (4); The flow control head (11) is fixedly mounted on the lower surface of the moving block (10), and the rubber sealing ring (12) is fixedly mounted on the outer surface of the flow control head (11); The air inlet (13) is provided on the left surface of the high-pressure valve body (3), and the air outlet (14) is provided on the right surface of the high-pressure valve body (3).

Images