Opening adjusting device of pneumatic adjusting valve
By designing the opening adjustment device of the pneumatic regulating valve, the combination of threaded adjustment rod and transmission worm gear and worm, the problem of cumbersome adjustment of the pneumatic regulating valve is solved, and the opening adjustment is achieved is simple, convenient and smooth.
Patent Information
- Application Number
- CN202422172477.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-09-05
AI Technical Summary
During use of existing pneumatic regulating valves, the ball baffle or plate baffle cannot be opened to a predetermined position, resulting in cumbersome and inconvenient opening adjustment.
A pneumatic regulating valve opening adjustment device is designed, and the pneumatic pressure adjustment and opening adjustment are achieved through the combination of a threaded adjustment rod, a transmission worm gear and an auxiliary knob.
This device allows the opening of the spherical or plate-shaped baffle to be adjusted by simply rotating the auxiliary knob, which is simple and convenient to operate, reduces friction resistance and reduces the possibility of misoperation.
Smart Images
Figure CN223004541U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pneumatic control valves, in particular to an opening adjustment device for a pneumatic control valve. Background Technique
[0002] A pneumatic control valve uses compressed gas as the power source, a cylinder as the actuator, and relies on accessories such as a valve positioner, converter, solenoid valve, position holding valve, air storage tank, and gas filter to drive the valve to achieve on-off or proportional adjustment, and receives the control signal of an industrial automation control system to complete the adjustment of various process parameters of the pipeline medium, such as flow rate, pressure, temperature, liquid level, etc. The characteristics of a pneumatic control valve are simple control, fast response, and intrinsic safety, without the need to take additional explosion-proof measures.
[0003] During the use of a pneumatic control valve, if the spherical baffle or plate-shaped baffle cannot be opened to the predetermined position, it is necessary to adjust the opening of the spherical baffle or plate-shaped baffle. During specific operations, the operator needs to hold a wrench, loosen the limit nut on the outer wall of the threaded adjustment rod, and then rotate the threaded adjustment rod through the handle to achieve air pressure adjustment. This operation is relatively cumbersome and not convenient to use.
[0004] Therefore, we propose an opening adjustment device for a pneumatic control valve. Content of the Utility Model
[0005] The utility model mainly solves the technical problems existing in the above-mentioned prior art, and provides an opening adjustment device for a pneumatic control valve.
[0006] To achieve the above purpose, the utility model adopts the following technical solution. An opening adjustment device for a pneumatic control valve includes a pneumatic control valve body. A threaded adjustment rod capable of adjusting the opening is threadedly connected to the front side wall surface of the pneumatic control valve body. A protective housing is fixedly installed on the front side wall surface of the pneumatic control valve body. The threaded adjustment rod is located inside the protective housing. A horizontally arranged connecting sleeve is rotatably installed on the front side wall surface of the cavity of the protective housing. The outer wall of the threaded adjustment rod is movably clamped into the inside of the connecting sleeve. An activity connection groove for limiting is provided on the outer wall of the connecting sleeve. A connecting clamping column for limiting is provided on the outer wall of the threaded adjustment rod. The connecting clamping column is movably clamped into the inside of the activity connection groove. A transmission worm gear is fixedly installed on the outer wall of the connecting sleeve in a detachable manner. A horizontally arranged transmission worm is rotatably installed on the left side wall surface of the cavity of the protective housing. The outer wall of the transmission worm movably penetrates through the right side wall surface of the protective housing. An auxiliary knob for facilitating its rotation is provided on the outer wall of the transmission worm.
[0007] Preferably, the outer wall of the threaded adjusting rod is adapted to the inside of the movable connecting sleeve. The connecting clamping column is rotatably mounted on the outer wall of the threaded adjusting rod. The connecting clamping column is cylindrical. Sliding balls that can rotate are arranged on the left and right wall surfaces of the movable connecting groove.
[0008] Preferably, the outer walls of the connecting clamping columns are all in sliding contact with the outer walls of the two groups of sliding balls away from the movable connecting groove. There are multiple sliding balls in each of the two groups, and the multiple sliding balls in the two groups are evenly distributed.
[0009] Preferably, the auxiliary knob is movably sleeved on the outer wall of the driving worm. The inside of the auxiliary knob is adapted to the outer wall of the driving worm. A connecting slider that can be limited is fixedly installed on the inner wall of the auxiliary knob.
[0010] Preferably, a connecting sliding groove and a limiting connecting groove for limiting are formed on the outer wall of the driving worm. The limiting connecting groove is located on the right side of the connecting sliding groove. The connecting sliders are all adapted to the inside of the connecting sliding groove and the limiting connecting groove.
[0011] Preferably, the connecting slider is movably clamped into the inside of the connecting sliding groove. The connecting sliding groove is an annular groove connected end to end. The left wall surface of the limiting connecting groove is communicated with the right wall surface of the connecting sliding groove.
[0012] Preferably, there are multiple limiting connecting grooves, and the multiple limiting connecting grooves are equidistantly distributed on the outer wall of the driving worm.
[0013] The utility model provides an opening adjusting device for a pneumatic control valve. It has the following beneficial effects:
[0014] 1. For the opening adjusting device of the pneumatic control valve, during the use of the utility model, if the spherical baffle or the plate-shaped baffle cannot be opened to the predetermined position, the auxiliary knob can be rotated forward. The driving worm starts to rotate forward, and the driving worm gear starts to drive the connecting sleeve to rotate forward. Under the limiting action of the connecting clamping column and the movable connecting groove on the threaded adjusting rod, the threaded adjusting rod starts to rotate. At the same time, due to the threaded connection between the threaded adjusting rod and the pneumatic control valve body, the threaded adjusting rod will move forward, thereby changing the opening of the spherical baffle or the plate-shaped baffle by increasing the air pressure. The operation is simple and convenient, and it is easy to use.
[0015] 2. The opening adjustment device of a pneumatic control valve. During the use of this utility model, since the connecting stud is rotatably installed on the outer wall of the threaded adjusting rod, and sliding balls that can rotate are provided on the left and right wall surfaces of the movable connection groove, the frictional resistance between the connecting stud and the movable connection groove can be reduced, making the operation smoother and more labor-saving. In addition, before rotating the auxiliary knob, the auxiliary knob needs to be rotated, and the connecting slider will rotate inside the connecting chute until the connecting slider moves to the position of the limiting connection groove. At this time, the auxiliary knob is pulled to the right until the connecting slider is stuck inside the limiting connection groove. Due to the limitation of the connecting slider and the limiting connection groove, when the auxiliary knob is rotated, the driving worm starts to rotate, which can reduce the situation of misoperation. Description of the Drawings
[0016] Figure 1 is a perspective view of the whole of this utility model;
[0017] Figure 2 is a perspective view of the main body of the pneumatic control valve of this utility model;
[0018] Figure 3 is Figure 2 an enlarged view of part A;
[0019] Figure 4 is Figure 3 an enlarged view of part B.
[0020] Legend: 1. Main body of the pneumatic control valve; 2. Threaded adjusting rod; 3. Protective housing; 4. Connecting sleeve; 5. Movable connection groove; 6. Driving worm gear; 7. Driving worm; 8. Auxiliary knob; 9. Connecting stud; 10. Sliding ball; 11. Connecting slider; 12. Connecting chute; 13. Limiting connection groove. Detailed Implementation Modes
[0021] Embodiment 1: An opening adjustment device of a pneumatic control valve, as Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown in the figure, it includes a pneumatic control valve body 1. A threaded adjusting rod 2 for opening adjustment is threadedly connected to the front side wall surface of the pneumatic control valve body 1. The air pressure is adjusted by screwing the threaded adjusting rod 2 in or out to achieve the adjustment of the opening. The above are all prior arts and will not be elaborated here. A protective housing 3 is fixedly installed on the front side wall surface of the pneumatic control valve body 1. The threaded adjusting rod 2 is located inside the protective housing 3. A connecting sleeve 4 arranged horizontally is rotatably installed on the front side wall surface of the cavity of the protective housing 3. The outer wall of the threaded adjusting rod 2 is movably clamped into the inside of the connecting sleeve 4. An activity connection groove 5 for limiting is provided on the outer wall of the connecting sleeve 4. A connecting clamping column 9 for limiting is provided on the outer wall of the threaded adjusting rod 2. The connecting clamping column 9 is movably clamped into the inside of the activity connection groove 5. A transmission worm gear 6 is fixedly installed on the outer wall of the connecting sleeve 4 in a detachable manner. A transmission worm 7 arranged horizontally is rotatably installed on the left side wall surface of the cavity of the protective housing 3. The outer wall of the transmission worm 7 movably penetrates through the right side wall surface of the protective housing 3. An auxiliary knob 8 for facilitating its rotation is provided on the outer wall of the transmission worm 7.
[0022] During the use of this utility model, if the spherical baffle or plate-shaped baffle fails to open to the predetermined position, the auxiliary knob 8 can be rotated forward. The transmission worm 7 starts to rotate forward, and the transmission worm gear 6 starts to drive the connecting sleeve 4 to rotate forward. Under the limiting action of the connecting clamping column 9 and the activity connection groove 5 on the threaded adjusting rod 2, the threaded adjusting rod 2 starts to rotate. At the same time, due to the threaded connection between the threaded adjusting rod 2 and the pneumatic control valve body 1, the threaded adjusting rod 2 will move forward, thereby changing the opening of the spherical baffle or plate-shaped baffle by increasing the air pressure.
[0023] Embodiment 2: On the basis of Embodiment 1, as Figure 3 and Figure 4 shown, the outer wall of the threaded adjusting rod 2 is adapted to the inside of the connecting sleeve 4. The connecting clamping column 9 is rotatably installed on the outer wall of the threaded adjusting rod 2. The connecting clamping column 9 is cylindrical. Rotatable sliding balls 10 are provided on the left and right wall surfaces of the activity connection groove 5.
[0024] The outer walls of the connecting clamping columns 9 are all in sliding contact with the outer walls of the two groups of sliding balls 10 away from the activity connection groove 5. There are multiple sliding balls 10 in each of the two groups, and the multiple sliding balls 10 in the two groups are evenly distributed.
[0025] The auxiliary knob 8 is movably sleeved on the outer wall of the transmission worm 7. The inside of the auxiliary knob 8 is adapted to the outer wall of the transmission worm 7. A connecting slider 11 for limiting is fixedly installed on the inner wall of the auxiliary knob 8.
[0026] The outer wall of the transmission worm 7 is provided with a connecting sliding groove 12 and a limiting connecting groove 13 for limiting. The limiting connecting groove 13 is located on the right side of the connecting sliding groove 12, and the connecting slider 11 is adapted to the interiors of both the connecting sliding groove 12 and the limiting connecting groove 13.
[0027] The connecting slider 11 is movably snapped into the interior of the connecting sliding groove 12. The connecting sliding groove 12 is an annular groove connected end to end, and the left wall surface of the limiting connecting groove 13 and the right wall surface of the connecting sliding groove 12 are mutually penetrated.
[0028] A plurality of limiting connecting grooves 13 are provided, and the plurality of limiting connecting grooves 13 are distributed on the outer wall of the transmission worm 7 at equal intervals.
[0029] During the use of this utility model, since the connecting clamping column 9 is rotatably installed on the outer wall of the threaded adjusting rod 2, and sliding balls 10 that can rotate are provided on both the left and right wall surfaces of the movable connecting groove 5, the frictional resistance between the connecting clamping column 9 and the movable connecting groove 5 can be reduced, making the operation smoother and more labor-saving. In addition, before rotating the auxiliary knob 8, the auxiliary knob 8 needs to be rotated. The connecting slider 11 will rotate inside the connecting sliding groove 12 until the connecting slider 11 moves to the position of the limiting connecting groove 13. At this time, the auxiliary knob 8 is pulled to the right until the connecting slider 11 is snapped into the interior of the limiting connecting groove 13. Due to the limitation of the connecting slider 11 and the limiting connecting groove 13, the transmission worm 7 starts to rotate when the auxiliary knob 8 is rotated.
[0030] The above shows and describes the basic principles, main features and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of this utility model. Without departing from the spirit and scope of this utility model, this utility model will have various changes and improvements, and these changes and improvements all fall within the scope of this utility model claimed. The scope of protection claimed by this utility model is defined by the appended claims and their equivalents.
Claims
1. An opening adjustment device for a pneumatic control valve, comprising a pneumatic control valve body (1), a front side wall of the pneumatic control valve body (1) being threadedly connected with a threaded adjustment rod (2) capable of adjusting the opening, characterized in that: The front side wall of the pneumatic regulating valve body (1) is fixedly mounted with a protective shell (3); the threaded regulating rod (2) is located inside the protective shell (3); a connecting sleeve (4) arranged in a horizontal state is rotatably mounted on the front side wall in the cavity of the protective shell (3); the outer wall of the threaded regulating rod (2) is movably inserted into the interior of the connecting sleeve (4); the outer wall of the connecting sleeve (4) is provided with a movable connecting groove (5) capable of being limited; the outer wall of the threaded regulating rod (2) is provided with a connecting clamping column (9) capable of being limited; the connecting clamping column (9) is movably inserted into the interior of the movable connecting groove (5); a transmission worm wheel (6) is detachably fixedly mounted on the outer wall of the connecting sleeve (4); a transmission worm (7) arranged in a horizontal state is rotatably mounted on the left side wall in the cavity of the protective shell (3); the outer wall of the transmission worm (7) movably penetrates the right side wall of the protective shell (3); and the outer wall of the transmission worm (7) is provided with an auxiliary knob (8) for facilitating its rotation.
2. The opening adjustment device of the pneumatic regulating valve according to claim 1, characterized in that: The outer wall of the threaded adjustment rod (2) is adapted to the interior of the movable connection sleeve (4), and the connection clamping column (9) is rotatably mounted on the outer wall of the threaded adjustment rod (2). The connection clamping column (9) is cylindrical, and the left and right walls of the movable connection groove (5) are both provided with rotatable sliding balls (10).
3. The opening adjustment device of the pneumatic regulating valve according to claim 2, characterized in that: The outer walls of the connecting clamping column (9) are in sliding contact with the outer walls of the two groups of sliding balls (10) away from the movable connecting groove (5), and the two groups of sliding balls (10) are provided with a plurality of them, and the two groups of multiple sliding balls (10) are evenly distributed.
4. The opening adjustment device of the pneumatic regulating valve according to claim 1, characterized in that: The auxiliary knob (8) is movably sleeved on the outer wall of the transmission worm (7), the interior of the auxiliary knob (8) and the outer wall of the transmission worm (7) are adapted to each other, and a connecting slider (11) capable of limiting position is fixedly mounted on the inner wall of the auxiliary knob (8).
5. The opening adjustment device of the pneumatic regulating valve according to claim 4, characterized in that: The outer wall of the transmission worm (7) is provided with a connection slide groove (12) and a limit connection groove (13) capable of being limited, the limit connection groove (13) is located on the right side of the connection slide groove (12), and the connection slider (11) is adapted to the inside of the connection slide groove (12) and the limit connection groove (13).
6. The opening adjustment device of the pneumatic regulating valve according to claim 5, characterized in that: The connecting slide block (11) is movably inserted into the interior of the connecting slide groove (12); the connecting slide groove (12) is an annular groove connected end to end; the left wall surface of the limiting connecting groove (13) and the right wall surface of the connecting slide groove (12) are interconnected.
7. The opening adjustment device of the pneumatic regulating valve according to claim 6, characterized in that: A plurality of the limiting connecting grooves (13) are provided, and the plurality of limiting connecting grooves (13) are distributed on the outer wall of the transmission worm (7) in an equidistant state.