Air flow regulating valve

Abstract

The utility model discloses an airflow flow regulating valve, which relates to the technical field of regulating valves, and comprises a shell assembly, a quick control mechanism and a regulating mechanism, the quick control mechanism comprises a control rod, a sliding magnetic plate, a first magnetic block, a second magnetic block and a support plate, and the regulating mechanism comprises a regulating rod, a third magnetic block and a fourth magnetic block. According to the utility model, the quick control mechanism is arranged, so that an operator can quickly push the sliding magnetic block to be adsorbed with the second magnetic block from the state of being adsorbed with the first magnetic block by inwards pushing the control rod when dangerous gas leakage or gas dangerous conditions such as a fire disaster occur in actual use; and the valve element is pushed to the rightmost end to completely block the valve hole, airflow is prevented from flowing continuously, dangerous gas is prevented from flowing out continuously, the operation mode is simple and convenient, and the safety of equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of regulating valves, in particular to an air flow regulating valve. Background Art

[0002] A pneumatic flow control valve is a control valve that uses an air source as its motive force. It is a general term for valves used to control the size of a flow rate. It can also be understood as a type of pneumatic control valve that is used to adjust the size of a flow rate. This type of pneumatic control valve uses compressed gas as its motive force, a cylinder as its actuator, and uses accessories such as valve positioners, converters, solenoid valves, position-holding valves, gas storage tanks, and gas filters to drive the valve to achieve switch quantity or proportional regulation. It receives control signals from industrial automation control systems to adjust the pipeline medium: flow, pressure, temperature, liquid level, and other process parameters. The characteristics of a pneumatic control valve are simple control, fast response, and inherent safety, without the need for additional explosion-proof measures.

[0003] The utility model patent with patent application publication number CN 214425134 U discloses a high-precision air flow regulating valve, including a left housing, a middle housing, a right housing, a valve core and a valve seat, the valve seat is fixedly arranged inside the middle housing, the valve core is located inside the valve seat, a limit sliding mechanism is arranged between the valve core and the upper and lower sides of the valve seat, an internal thread sleeve is fixedly arranged on the left side wall of the valve core, a screw rod is arranged on the internal thread of the internal thread sleeve, the left end of the screw rod is rotatably connected with the inner side wall of the left housing through a first rolling bearing, a sleeve is rotatably arranged on the inner side wall of the left housing and located above the screw rod through a second rolling bearing, a rotating shaft is arranged inside the sleeve, and the shaft wall of the rotating shaft is rotatably connected with the inner side wall of the left housing through a sliding bearing. The utility model can realize fast and slow pushing of the valve core and the valve seat to cooperate and fast and fine-tune the gap between the valve core and the valve seat, so as to control the output of the air flow with high precision.

[0004] However, the above device still has some shortcomings in actual use. The most obvious one is that the device can only drive the valve core to move slowly by turning the crank when adjusting the gas flow. When gas leakage or other dangerous situations occur, the valve core cannot be immediately pushed into the valve seat to quickly close and isolate the gas flow and the danger. In addition, when the device changes the coordination of large and small gears for fast and slow adjustments, the operator is required to manually align and mesh the first large gear with the second small gear. Since the operator cannot observe the inside of the flow control valve during adjustment, the first large gear and the second large gear cannot be quickly aligned and meshed. The operation is difficult, which reduces the operator's work efficiency and wastes a lot of time.

[0005] Therefore, it is necessary to invent an air flow regulating valve to solve the above problems. Utility Model Content

[0006] The utility model aims to provide an air flow regulating valve, which solves the problem proposed in the above background technology that the device can only drive the valve core to move slowly by turning the crank when adjusting the air flow, and when gas leakage or other dangerous situations occur, the valve core cannot be immediately pushed into the valve seat to quickly close and isolate the airflow and the danger. In addition, when the device changes the coordination of large and small gears for fast and slow adjustment, the operator needs to manually align and mesh the first large gear with the second small gear. Since the operator cannot observe the inside of the flow control valve during adjustment, the first large gear and the second large gear cannot be quickly aligned and meshed, which makes the operation difficult, reduces the operator's work efficiency and wastes a lot of time.

[0007] According to one aspect of the present disclosure, the following technical solution is provided: an air flow regulating valve, comprising:

[0008] A housing assembly, the housing assembly comprising a middle housing and a left housing, the left housing being fixedly connected to the outside of the middle housing;

[0009] A quick control mechanism, the quick control mechanism comprising a control rod, a sliding magnetic plate, a first magnetic block, a second magnetic block and a support plate, the sliding magnetic plate is slidably sleeved inside the left shell, the control rod is fixedly connected to the sliding magnetic plate and passes through the sliding magnetic plate, the first magnetic block is fixedly connected to the outside of one end of the left shell, the second magnetic block is fixedly sleeved inside the left shell, the support plate is fixedly connected to the inside of the left shell and is located on the right side of the second magnetic block, and the control rod passes through the support rod; and

[0010] The adjusting mechanism includes an adjusting rod, a third magnetic block and a fourth magnetic block. The adjusting rod is slidably connected to the sliding tooth plate and passes through the sliding magnetic plate. The adjusting rod is slidably connected to the support rod and passes through the support plate. The third magnetic block is fixedly sleeved on the outside of the adjusting rod and is located on the left side of the sliding magnetic plate. The fourth magnetic block is fixedly sleeved on the outside of the adjusting rod and is located on the right side of the sliding magnetic plate.

[0011] According to the airflow flow regulating valve of at least one embodiment of the present disclosure, the shell quick control mechanism also includes a first large gear, a first small gear and a threaded rod, the first large gear is fixedly sleeved on the outside of the control rod and is located on the right side of the support rod, the first small gear is fixedly sleeved on the outside of the control rod and is located on the right side of the first large gear, and the threaded rod is fixedly connected to one end of the control rod and is located on the right side of the first small gear.

[0012] According to the airflow flow regulating valve of at least one embodiment of the present disclosure, the regulating mechanism also includes a second small gear and a second large gear, the second small gear is fixedly sleeved on the outside of the regulating rod and is located on the right side of the support plate, and the second large gear is fixedly sleeved on the outside of the regulating rod and is located on the right side of the second small gear.

[0013] According to the airflow flow regulating valve of at least one embodiment of the present disclosure, the housing assembly further includes a valve seat, a valve hole, a limiting sliding rod, a sliding plate, a valve core, a threaded sleeve and a right housing.

[0014] According to the airflow flow regulating valve of at least one embodiment of the present disclosure, the valve seat is fixedly sleeved inside the middle shell body, the valve hole is opened on the surface of the valve seat and penetrates the valve seat, the limiting slide rod is fixedly connected to the outside of the valve seat, the sliding plate is slidably sleeved on the outside of the limiting slide rod, the valve core is fixedly connected to the outside of the sliding plate, the threaded sleeve is fixedly connected to the outside of the valve core, the threaded sleeve is threadedly connected to the threaded rod, and the right shell is fixedly connected to the right side of the middle shell body.

[0015] Technical effects and advantages of the utility model:

[0016] The utility model is provided with a quick control mechanism, so that when there is a dangerous gas leak or a gas dangerous situation such as a fire in actual use, the operator can quickly push the control rod inward to push the sliding magnetic plate from the state of being adsorbed with the first magnetic block to the state of being adsorbed with the second magnetic block, and push the valve core to the rightmost end to completely block the valve hole, thereby preventing the airflow from continuing to flow and avoiding the dangerous gas from continuing to flow out. The operation method is simple and convenient, which improves the safety of the equipment.

[0017] The utility model is provided with an adjusting mechanism with a third magnetic block and a fourth magnetic block and a quick control mechanism with a sliding magnetic plate, so that when the operator changes the adjustment speed, the operator can push the adjusting rod to quickly and accurately change the state of the sliding magnetic plate adsorbed with the fourth magnetic block to adsorbed with the third magnetic block. At this time, the adjusting mechanism changes from meshing with the first large gear and the second small gear to meshing with the first small gear and the second large gear to speed up the adjustment speed, or pulls the adjusting rod outward to change the state of the sliding magnetic plate adsorbed with the third magnetic block to adsorbed with the fourth magnetic block. At this time, the adjusting mechanism changes from meshing with the second large gear and the first small gear to meshing with the second small gear and the first large gear to slow down the adjustment speed, thereby avoiding the operator's inability to quickly and accurately adjust the gear position to the right position when manually adjusting, thereby improving the operator's work efficiency, and the adjustment method is simple, convenient and more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings illustrate exemplary embodiments of the present disclosure and together with the description serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0019] Figure 1 It is a front view of the overall structure of an airflow flow regulating valve according to one embodiment of the present disclosure.

[0020] Figure 2 It is an internal cross-sectional view of the overall structure of an air flow regulating valve according to one embodiment of the present disclosure.

[0021] Figure 3 It is a schematic diagram of the overall structure of an air flow regulating valve according to an embodiment of the present disclosure.

[0022] Figure 4 It is a schematic diagram of a regulating mechanism of an air flow regulating valve according to an embodiment of the present disclosure.

[0023] The specific reference numerals in the figure are:

[0024] 1. Shell assembly; 11. Middle shell; 12. Left shell; 13. Valve seat; 14. Valve hole; 15. Limiting slide rod; 16. Sliding plate; 17. Valve core; 18. Threaded sleeve; 19. Right shell;

[0025] 2. Quick control mechanism; 21. Control rod; 22. Sliding magnetic plate; 23. First magnetic block; 24. Second magnetic block; 25. Support plate; 26. First large gear; 27. First small gear; 28. Threaded rod;

[0026] 3. Adjustment mechanism; 31. Adjustment rod; 32. Third magnetic block; 33. Fourth magnetic block; 34. Second small gear; 35. Second large gear. DETAILED DESCRIPTION

[0027] The present disclosure is further described in detail below in conjunction with the accompanying drawings and implementations. It is understood that the specific implementations described herein are only used to explain the relevant content, rather than to limit the present disclosure. It should also be noted that, for ease of description, only the parts related to the present disclosure are shown in the accompanying drawings.

[0028] like Figure 1-Figure 4 As shown, the air flow regulating valve of the present disclosure may include: a housing assembly 1 , a quick control mechanism 2 , a regulating mechanism 3 and other components.

[0029] like Figure 2 As shown, in the present disclosure, the housing assembly 1 includes a middle shell 11, a left shell 12, a valve seat 13, a valve hole 14, a limiting slide rod 15, a sliding plate 16, a valve core 17, a threaded sleeve 18 and a right shell 19, wherein the left shell is fixedly connected to the outer side of the middle shell 11, the valve seat 13 is fixedly sleeved inside the middle shell, the valve hole 14 is opened on the surface of the valve seat 13 and penetrates the valve seat 13, the limiting slide rod 15 is fixedly connected to the outer side of the valve seat 13, the sliding plate 16 is slidably sleeved on the outer side of the limiting slide rod 15, the valve core 17 is fixedly connected to the outer side of the sliding plate 16, the threaded sleeve 18 is fixedly connected to the outer side of the valve core 17, the threaded sleeve 18 is threadedly connected to the threaded rod 28, and the right shell 19 is fixedly connected to the right side of the middle shell 11.

[0030] like Figure 2-4 As shown, in a preferred embodiment, the fast control mechanism 2 includes a control rod 21, a sliding magnetic plate 22, a first magnetic block 23, a second magnetic block 24, a support plate 25, a first large gear 26, a first small gear 27 and a threaded rod 28, wherein the sliding magnetic plate 22 is slidably sleeved inside the left shell body 12, the control rod 21 is fixedly connected to the sliding magnetic plate 22 and passes through the sliding magnetic plate 22, the first magnetic block 23 is fixedly connected to the outer side of one end of the left shell body 12, the second magnetic block 24 is fixedly sleeved inside the left shell body 12, the support plate 25 is fixedly connected to the inner side of the left shell body 12 and is located on the right side of the second magnetic block 24, the control rod 21 passes through the support rod, the first large gear 26 is fixedly sleeved on the outer side of the control rod 21 and is located on the right side of the support rod, the first small gear 27 is fixedly sleeved on the outer side of the control rod 21 and is located on the right side of the first large gear 26, and the threaded rod 28 is fixedly connected to one end of the control rod 21 and is located on the right side of the first small gear 27.

[0031] Therefore, when a dangerous gas leak or a gas hazardous situation such as a fire occurs, the operator can push the control rod 21 inward, and the control rod 21 drives the sliding magnetic plate to slide and disengage from the adsorption of the first magnetic block 23. The movement of the control rod 21 drives the threaded rod 28 to move, and the movement of the threaded rod 28 drives the threaded sleeve 18 to move. The movement of the threaded sleeve 18 drives the valve core 17 to move until the sliding magnetic plate 22 is adsorbed by the second magnetic block 24. At this time, the valve core 17 just completely blocks the valve hole 14, blocking the flow of airflow.

[0032] like Figure 2-4 As shown, in the present disclosure, the adjustment mechanism 3 includes an adjustment rod 31, a third magnetic block 32, a fourth magnetic block 33, a second small gear 34 and a second large gear 35, wherein the adjustment rod 31 is slidably connected to the sliding tooth plate and passes through the sliding magnetic plate 22, the adjustment rod 31 is slidably connected to the support rod and passes through the support plate 25, the third magnetic block 32 is fixedly sleeved on the outer side of the adjustment rod 31 and is located on the left side of the sliding magnetic plate, the fourth magnetic block 33 is fixedly sleeved on the outer side of the adjustment rod 31 and is located on the right side of the sliding magnetic plate, the second small gear 34 is fixedly sleeved on the outer side of the adjustment rod 31 and is located on the right side of the support plate 25, and the second large gear 35 is fixedly sleeved on the outer side of the adjustment rod 31 and is located on the right side of the second small gear 34.

[0033] Therefore, when the operator changes the adjustment speed, he first pushes the adjustment rod 31 to make the sliding magnetic plate disengage from the adsorption of the fourth magnetic block 33 until it changes to adsorption of the third magnetic block 32. At this time, the adjustment mechanism 3 changes from the meshing of the first large gear 26 and the second small gear 34 to the meshing of the first small gear 27 and the second large gear 35 to speed up the adjustment speed. The operator drives the second large gear 35 to rotate by rotating the adjustment rod 31, and the rotation of the second large gear 35 drives the first small gear 27 to rotate. The rotation of the first small gear 27 drives the threaded rod 28 to rotate, and the rotation of the threaded rod 28 drives the threaded sleeve 18 to move. The movement of the threaded sleeve 18 drives the valve core 17 to move to adjust the airflow rate while driving the sliding plate 16 on the limit slide rod 15. When the adjustment speed needs to be reduced, the operator pulls the adjustment rod 31 outward to disengage the sliding magnetic plate from the adsorption of the third magnetic block 32 until the fourth magnetic block 33 is adsorbed on the sliding magnetic plate. At this time, the adjustment mechanism 3 changes from the meshing of the second large gear 35 and the first small gear 27 to the meshing of the second small gear 34 and the first large gear 26 to reduce the adjustment speed, and then the second small gear 34 is driven to rotate by rotating the adjustment rod 31, and the second small gear 34 is driven to rotate by the first large gear 26, and the first large gear 26 is driven to rotate by the threaded rod 28, and the threaded rod 28 is driven to move by the threaded sleeve 18, and the threaded sleeve 18 is driven to move by the valve core 17 to adjust the airflow while driving the sliding plate 16 to slide on the limit slide rod 15.

[0034] In the description of this specification, the description with reference to the terms "one embodiment / method", "some embodiments / methods", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment / method or example are included in at least one embodiment / method or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment / method or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments / methods or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments / methods or examples described in this specification and the features of different embodiments / methods or examples, unless they are contradictory.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0036] Those skilled in the art should understand that the above embodiments are only for the purpose of clearly illustrating the present disclosure, and are not intended to limit the scope of the present disclosure. For those skilled in the art, other changes or modifications may be made based on the above disclosure, and these changes or modifications are still within the scope of the present disclosure.

Claims

1. An air flow regulating valve, characterized in that: include: A housing assembly (1), the housing assembly (1) comprising a middle housing (11) and a left housing (12), the left housing being fixedly connected to the outside of the middle housing (11); A quick control mechanism (2), the quick control mechanism (2) comprising a control rod (21), a sliding magnetic plate (22), a first magnetic block (23), a second magnetic block (24) and a support plate (25), the sliding magnetic plate (22) being slidably sleeved inside a left housing (12), the control rod (21) being fixedly connected to the sliding magnetic plate (22) and passing through the sliding magnetic plate (22), the first magnetic block (23) being fixedly connected to the outside of one end of the left housing (12), the second magnetic block (24) being fixedly sleeved inside the left housing (12), the support plate (25) being fixedly connected to the inside of the left housing (12) and being located on the right side of the second magnetic block (24), and the control rod (21) passing through the support rod; and An adjustment mechanism (3), the adjustment mechanism (3) comprising an adjustment rod (31), a third magnetic block (32) and a fourth magnetic block (33), the adjustment rod (31) being slidably connected to the sliding tooth plate and passing through the sliding magnetic plate (22), the adjustment rod (31) being slidably connected to the support rod and passing through the support plate (25), the third magnetic block (32) being fixedly sleeved on the outside of the adjustment rod (31) and being located on the left side of the sliding magnetic plate, and the fourth magnetic block (33) being fixedly sleeved on the outside of the adjustment rod (31) and being located on the right side of the sliding magnetic plate.

2. The air flow regulating valve according to claim 1, characterized in that: The quick control mechanism (2) further comprises a first large gear (26), a first small gear (27) and a threaded rod (28); the first large gear (26) is fixedly sleeved on the outside of the control rod (21) and is located on the right side of the support rod; the first small gear (27) is fixedly sleeved on the outside of the control rod (21) and is located on the right side of the first large gear (26); and the threaded rod (28) is fixedly connected to one end of the control rod (21) and is located on the right side of the first small gear (27).

3. The air flow regulating valve according to claim 2, characterized in that: The adjustment mechanism (3) further comprises a second small gear (34) and a second large gear (35); the second small gear (34) is fixedly sleeved on the outside of the adjustment rod (31) and is located on the right side of the support plate (25); the second large gear (35) is fixedly sleeved on the outside of the adjustment rod (31) and is located on the right side of the second small gear (34).

4. The air flow regulating valve according to claim 3, characterized in that: The housing assembly (1) further comprises a valve seat (13), a valve hole (14), a limit sliding rod (15), a sliding plate (16), a valve core (17), a threaded sleeve (18) and a right housing (19).

5. The air flow regulating valve according to claim 4, characterized in that: The valve seat (13) is fixedly sleeved inside the middle shell body, the valve hole (14) is opened on the surface of the valve seat (13) and penetrates the valve seat (13), the limiting slide rod (15) is fixedly connected to the outside of the valve seat (13), the sliding plate (16) is slidably sleeved on the outside of the limiting slide rod (15), the valve core (17) is fixedly connected to the outside of the sliding plate (16), the threaded sleeve (18) is fixedly connected to the outside of the valve core (17), the threaded sleeve (18) is threadedly connected to the threaded rod (28), and the right shell body (19) is fixedly connected to the right side of the middle shell body (11).

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