A high-pressure air quick-opening valve control device

Abstract

The utility model relates to a high pressure air speed -open valve control device, include: pneumatic head, pneumatic head is used for with valve body fixed, pneumatic head output shaft axis is perpendicular with the first valve rod axis that valve is connected with handle, rack, rack length direction is parallel with pneumatic head output shaft axis, and rack is fixed with pneumatic head output shaft, gear, gear is coaxial with the first valve rod and connects, and gear is engaged with rack, clutch structure, be located between handle and gear, be used for limit gear relative the rotation of first valve rod, and can remove the limitation, the utility model discloses through setting up the rack that pneumatic head drives and the gear that is connected with the first valve rod, when needing manual control handle, can make clutch structure contact the restriction of gear, the rotation of first valve rod and gear does not interfere with each other at this time, and the handle switch valve is not influenced by pneumatic head, and the valve switch operation of manual is convenient.

Description

Technical Field

[0001] This utility model relates to the field of valve control technology, specifically to a high-pressure air quick-opening valve control device. Background Technology

[0002] Marine high-pressure air quick-opening valves are mainly used to supply air to the cabins of underwater vessels in emergencies to support pressure resistance and reduce or prevent water from entering the cabins.

[0003] One type of high-pressure air quick-opening valve in related technologies has two switches: a handwheel and a handle. During operation, the handwheel is normally open, and the valve's opening and closing are controlled by the handle. Currently, there are mechanisms that use a pneumatic actuator in conjunction with a linkage structure to control the handle's rotation, enabling remote control of the valve's opening and closing.

[0004] In the event of remote control failure, it is still necessary to manually operate the handle to control the opening and closing of the valve. At this time, due to the interference between the drive mechanism and the handle, it is inconvenient to manually operate the handle. Utility Model Content

[0005] Based on the above description, this utility model provides a high-pressure air quick-opening valve control device to solve the problem that when remote control fails and manual operation of the handle is required to control the valve opening and closing, the manual operation of the handle is inconvenient due to the interference between the drive mechanism and the handle.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: This application provides a high-pressure air quick-opening valve control device, comprising: A pneumatic head is used to fix the valve body, and the output shaft axis of the pneumatic head is perpendicular to the axis of the first valve stem to which the handle is connected; A rack, the length direction of which is parallel to the axis of the pneumatic head output shaft, and the rack is fixed to the pneumatic head output shaft; A gear, which is coaxially connected to the first valve stem and meshes with the rack; A clutch mechanism is provided between the handle and the gear to restrict the gear from rotating relative to the first valve stem, and to release the restriction.

[0007] Preferably, the clutch structure includes a locking gear block connected to the handle, and the locking gear block can move along the length direction of the handle to engage or disengage with the gear.

[0008] Preferably, the handle includes a fixed section and a movable section. The fixed section is fixed to the first valve stem, and the movable section is coaxially sleeved outside the fixed section. The movable section can move axially relative to the fixed section, and the locking tooth block is connected to the movable section.

[0009] Preferably, an elastic element is provided between the movable section and the fixed section. When the movable section moves closer to the first valve stem, the locking tooth block moves closer to the gear. When the movable section moves away from the first valve stem, causing the locking tooth block to disengage from the gear, it overcomes the elastic force of the elastic element.

[0010] Preferably, the elastic element includes a tension spring, the length direction of which is parallel to the length direction of the handle, and both ends of the tension spring are connected to the fixed section and the movable section, respectively.

[0011] Preferably, a fixing component is further provided between the movable segment and the fixed segment, the fixing component being used to connect the movable segment and the fixed segment to restrict the movable segment from moving away from the first valve stem.

[0012] Preferably, the fixing component includes a connecting ring and a hanging rod. The connecting ring is connected to the fixed section via a connecting rope, and the hanging rod is connected to the movable section. When the connecting ring is hung on the hanging rod, the connecting rope is taut and the locking tooth block meshes with the gear.

[0013] Compared with the prior art, the technical solution of this application has at least the following beneficial technical effects: 1. This application utilizes a pneumatically driven rack and a gear connected to the first valve stem. When the clutch mechanism restricts the gear's rotation relative to the first valve stem, the rack, driven by the pneumatic head, rotates the gear. The gear then rotates the first valve stem, achieving the operation of a valve with a handle, thus realizing remote control of the valve's opening and closing. When manual operation of the handle is required, the clutch mechanism can disengage from restricting the gear. In this case, the rotation of the first valve stem and the gear do not interfere with each other, and the valve opening and closing operation is unaffected by the pneumatic head, facilitating manual valve operation.

[0014] 2. This application achieves the locking and unlocking functions of the gear through the movable setting of the locking tooth block, which is simple and easy to implement. By designing the handle to include a fixed section and a movable section, the locking tooth block is moved by axially moving the movable section. When manual operation of the handle is required, the operator only needs to hold the movable section and move it axially away from the first valve stem to disengage the locking tooth block from the gear. Then, by manipulating the movable section to rotate the handle, the valve can be opened or closed. The entire operation is simple and convenient, and the connection between the first valve stem and the pneumatic head can be quickly disconnected for manual control of the valve opening and closing. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the high-pressure air quick-opening valve control device provided in an embodiment of the present utility model; Figure 2This is a partially enlarged schematic diagram of the high-pressure air quick-opening valve control device provided in an embodiment of the present invention.

[0016] Explanation of reference numerals in the attached figures: 1. Valve body; 2. First valve stem; 3. Handle; 31. Fixed section; 32. Moving section; 4. Pneumatic head; 5. Rack; 6. Gear; 7. Locking tooth block; 8. Elastic element; 9. Connecting ring; 10. Hanging rod; 11. Connecting rope. Detailed Implementation

[0017] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0019] It is understood that spatial relation terms such as "below," "under," "below," "below," "above," "above," etc., can be used here to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as "below" or "below" of the other element or feature will be oriented "above" the other element or feature. Therefore, the exemplary terms "below" and "below" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.

[0020] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediary element. In the following embodiments, "connection" should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., have the transmission of electrical signals or data between them.

[0021] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0022] Reference Figure 1 As shown, this application provides a high-pressure air quick-opening valve control device, including a pneumatic head 4, a rack 5, a gear 6, and a clutch structure. The pneumatic head 4 is fixed to the valve body 1, and the output shaft axis of the pneumatic head 4 is perpendicular to the axis of the first valve stem 2 to which the handle 3 is connected. The length direction of the rack 5 is parallel to the output shaft axis of the pneumatic head 4, and the rack 5 is fixed to the output shaft of the pneumatic head 4. The gear 6 is coaxially connected to the first valve stem 2, and the gear 6 meshes with the rack 5. The clutch structure is located between the handle 3 and the gear 6, used to restrict the rotation of the gear 6 relative to the first valve stem 2, and can release this restriction. In this embodiment, the control device is illustrated and described by connecting it to the valve.

[0023] When the clutch mechanism restricts the rotation of gear 6 relative to the first valve stem 2, the rack 5, driven by the pneumatic head 4, rotates gear 6. Gear 6 then rotates the first valve stem 2, enabling the valve to be opened and closed via handle 3, thus achieving remote control of the valve's opening and closing. When manual operation of handle 3 is required, the clutch mechanism can disengage from restricting gear 6. In this case, the rotation of the first valve stem 2 and gear 6 do not interfere with each other, and the valve opening and closing via handle 3 is unaffected by the pneumatic head 4, facilitating manual valve operation.

[0024] Specifically, one end of the handle 3 is fixed to the end of the first valve stem 2, and the length direction of the handle 3 is perpendicular to the axis of the first valve stem 2. The gear 6 is coaxially sleeved outside the first valve stem 2, located between the handle 3 and the valve body. The gear 6 is designed to have a clearance fit with the part of the first valve stem 2 located outside the valve body, so that the gear 6 and the first valve stem 2 remain coaxial and can rotate relative to each other.

[0025] Reference Figure 1 and Figure 2 As shown, in order to realize the function of the clutch mechanism to restrict the rotation of the gear 6 relative to the first valve stem 2 and to release the restriction, the clutch structure includes a locking tooth block 7, which is connected to the handle 3. The locking tooth block 7 can move along the length of the handle 3 to engage or disengage with the gear 6.

[0026] Specifically, the locking tooth block 7 is set with a concave arc surface on the side near the gear 6. The teeth of the locking tooth block 7 are set on the arc surface. When the locking tooth block 7 moves to mesh with the gear, multiple teeth on the arc surface mesh with multiple teeth on the gear, so that the locking tooth block 7 and the gear 6 are fixed to each other when they mesh, thereby achieving the purpose of restricting the relative rotation of the gear 6 and the first valve stem 2.

[0027] Reference Figure 1 and Figure 2 As shown, to facilitate the movement of the locking tooth block 7, the handle 3 is configured to include a fixed section 31 and a movable section 32. The fixed section 31 is fixed to the first valve stem 2, and the movable section 32 is coaxially sleeved outside the fixed section 31. The movable section 32 can move axially relative to the fixed section 31, and the locking tooth block 7 is connected to the movable section 32. Correspondingly, the axes of the fixed section 31 and the movable section 32 are parallel to the length direction of the handle 3. The fixed section 31 and the movable section 32 together form the handle 3 for operation by a person. The fixed section 31 is configured with a rectangular cross-section, and the inner hole of the corresponding movable section 32 is configured with a rectangular cross-section to restrict the relative rotation of the fixed section 31 and the movable section 32 and prevent the locking tooth block 7 from rotating.

[0028] Reference Figure 1 and Figure 2 As shown, an elastic element 8 is provided between the movable section 32 and the fixed section 31. When the movable section 32 moves closer to the first valve stem 2, the locking tooth block 7 moves closer to the gear 6. When the movable section 32 moves away from the first valve stem 2, causing the locking tooth block 7 to disengage from the gear 6, it overcomes the elastic force of the elastic element 8. The elastic element 8 ensures that when the handle 3 is not operated, the movable section 32 remains in the position where the locking tooth block 7 and the gear 6 are engaged, thereby keeping the gear 6 relatively fixed to the first valve stem 2. This allows the pneumatic head 4 and the rack 5 to drive the gear 6 and the first valve stem 2 to rotate, achieving remote control of the valve opening and closing.

[0029] The elastic element 8 includes a tension spring, the length of which is parallel to the length of the handle 3. Both ends of the tension spring are connected to the fixed section 31 and the movable section 32, respectively. Specifically, connecting hooks are provided on the movable section 32 and the fixed section 31, and both ends of the tension spring are connected to the two connecting hooks.

[0030] When manual operation of handle 3 is required, the operator only needs to hold the movable section 32 and move it away from the first valve stem 2 axially to disengage the locking block 7 from the gear 6. Then, by manipulating the movable section 32 to rotate handle 3, the valve can be opened or closed. The whole operation is simple and convenient, and the connection between the first valve stem 2 and the pneumatic head 4 can be quickly disconnected for manual control of the valve opening and closing.

[0031] Reference Figure 1 and Figure 2As shown, furthermore, in order to prevent the remote control from failing due to the disengagement between the locking block 7 and the gear 6 when the remote control pneumatic head 4 is used to open and close the valve, a fixing component is provided between the movable section 32 and the fixed section 31. The fixing component is used to connect the movable section 32 and the fixed section 31 to restrict the movable section 32 from moving away from the first valve stem 2.

[0032] Reference Figure 1 and Figure 2 As shown, the fixing component includes a connecting ring 9 and a hanging rod 10. The connecting ring 9 is connected to the fixed section 31 via a connecting rope 11, and the hanging rod 10 is connected to the movable section 32. When the connecting ring 9 is hung on the hanging rod 10, the connecting rope 11 is taut, and the locking block 7 engages with the gear 6. When manual operation of the handle 3 is not required, the connecting ring 9 is manually hung on the hanging rod 10. The fixing component, in conjunction with the connecting ring 9, restricts the movable section 32 from moving away from the first valve stem 2, keeping the locking block 7 engaged with the gear 6. This prevents the locking block 7 from disengaging from the gear 6 due to the radial force between the gear 6 and the locking block 7, thus avoiding remote control failure. When manual operation is required, simply move the connecting ring 9 to disengage it from the hanging rod 10, and then manipulate the movable section 32 to disengage the locking block 7 from the gear 6. The operation is simple and convenient.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-pressure air quick-opening valve control device, characterized in that, include: Pneumatic head (4), the pneumatic head (4) is used to fix to the valve body (1), and the output shaft axis of the pneumatic head (4) is perpendicular to the axis of the first valve stem (2) to which the handle (3) is connected; A rack (5) is provided, the length of which is parallel to the axis of the output shaft of the pneumatic head (4), and the rack (5) is fixed to the output shaft of the pneumatic head (4). Gear (6), the gear (6) is coaxially connected to the first valve stem (2), and the gear (6) meshes with the rack (5); A clutch structure is provided between the handle (3) and the gear (6) to restrict the rotation of the gear (6) relative to the first valve stem (2) and to release the restriction.

2. The high-pressure air quick-opening valve control device according to claim 1, characterized in that: The clutch structure includes a locking tooth block (7), which is connected to the handle (3). The locking tooth block (7) can move along the length of the handle (3) to engage or disengage with the gear (6).

3. The high-pressure air quick-opening valve control device according to claim 2, characterized in that: The handle (3) includes a fixed section (31) and a movable section (32). The fixed section (31) is fixed to the first valve stem (2). The movable section (32) is coaxially sleeved outside the fixed section (31). The movable section (32) can move axially relative to the fixed section (31). The locking tooth block (7) is connected to the movable section (32).

4. The high-pressure air quick-opening valve control device according to claim 3, characterized in that: An elastic element (8) is provided between the movable section (32) and the fixed section (31). When the movable section (32) moves closer to the first valve stem (2), the locking tooth block (7) moves closer to the gear (6). When the movable section (32) moves away from the first valve stem (2) to disengage the locking tooth block (7) from the gear (6), it overcomes the elastic force of the elastic element (8).

5. The high-pressure air quick-opening valve control device according to claim 4, characterized in that: The elastic element (8) includes a tension spring, the length direction of which is parallel to the length direction of the handle (3), and the two ends of the tension spring are respectively connected to the fixed section (31) and the movable section (32).

6. The high-pressure air quick-opening valve control device according to claim 4, characterized in that: A fixing component is also provided between the movable segment (32) and the fixed segment (31), the fixing component being used to connect the movable segment (32) and the fixed segment (31) to restrict the movable segment (32) from moving away from the first valve stem (2).

7. The high-pressure air quick-opening valve control device according to claim 6, characterized in that: The fixing component includes a connecting ring (9) and a hanging rod (10). The connecting ring (9) is connected to the fixed section (31) via a connecting rope (11). The hanging rod (10) is connected to the movable section (32). When the connecting ring (9) is hung on the hanging rod (10), the connecting rope (11) is taut and the locking tooth block (7) meshes with the gear (6).

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