Adjusting type air valve actuator capable of preventing mistaken touch
By incorporating anti-accidental touch components and an electrical triggering structure for mechanical rotation control in the damper actuator, the problem of misoperation caused by accidental handle contact is solved, ensuring operational accuracy and safety, and preventing damage and loss of parts.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO HOOCON AUTOMATION CONTROL EQUIP CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-28
AI Technical Summary
The handle of existing damper actuators is prone to accidental activation due to external impacts or misoperation, which can cause inaccurate airflow control, affect system performance, and pose safety hazards.
An anti-accidental activation regulating damper actuator was designed. By setting up components such as a handle, indicator, fixed base, micro-motion unit, stationary contact plate, moving contact plate, guide plate, and gear inside the housing, mechanical rotation control is achieved through electrical triggering. This ensures that a signal is issued only after each adjustment action is correctly engaged, and the handle is prevented from being accidentally pulled out by a spring block and limit step structure.
It features an anti-accidental touch design to reduce the risk of human error, ensure the accuracy and safety of operation, and prevent damage and loss of parts.
Smart Images
Figure CN224174639U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of damper actuator technology, specifically a regulating damper actuator designed to prevent accidental activation. Background Technology
[0002] Air valves are used to regulate airflow, cut off or guide gas flow. The air valve actuator, as the driving component of the air valve, is mainly responsible for converting electrical signals or manual operations into mechanical movements of the valve blades, thereby controlling the valve opening. Common actuators include electric, pneumatic, and manual types. Actuators are also equipped with handles for manual switching in case of power failure or emergencies, ensuring continuous system operation.
[0003] However, commonly used handle-operated damper actuators have certain technical drawbacks. For example, the handle is usually directly connected to the trigger unit, and unintentional collisions, vibrations, or misoperations can easily cause changes in the damper's position, leading to inaccurate airflow control, affecting system performance, and even posing safety hazards. Since dampers must allow for rapid manual operation, an emergency handle is essential. Therefore, there is an urgent need for a regulating damper actuator with anti-accidental activation functionality to address these technical shortcomings. Utility Model Content
[0004] The purpose of this invention is to provide a regulating damper actuator that prevents accidental activation, in order to solve the problem of accidental operation caused by accidental activation of the handle mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a regulating damper actuator to prevent accidental activation, comprising a housing, a fixed seat fixedly connected to the inner wall of the housing, a fixed tube movably sleeved within the fixed seat, a first gear fixedly connected to the rear of the fixed tube, a second gear meshing with one end of the first gear, a guide plate fixedly mounted at the center of the second gear, a micro-motion unit fixedly installed within the housing, a stationary contact plate and a moving contact plate electrically connected to the micro-motion unit, a cross-shaped hollow sleeve welded to the rear end of the inner wall of the fixed tube, an actuator inserted into the fixed tube, a handle fixedly installed at the rear end, and four sets of cross-shaped protrusions surrounding the actuator, the cross-shaped protrusions matching the cross-shaped hollow sleeve.
[0006] As a further technical solution of this utility model, the second gear is movably assembled at the fixed seat and the second gear is movably assembled on the side wall of the outer shell.
[0007] As a further technical solution of this utility model, the micro-motion unit is connected to two sets of antennas via wires, and the antennas extend to the outside of the housing.
[0008] As a further technical solution of this utility model, an indicator is provided on the outside of the outer shell to indicate the adjustment amount of the air valve.
[0009] As a further technical solution of this utility model, a mounting seat is movably assembled at the fixed seat, the mounting seat is fixedly sleeved on the outside of the fixed tube, a spring block is movably assembled at the mounting seat, a reserved groove is opened at the top of the fixed tube, the spring block is inserted into the reserved groove, and a set of grooves is machined on the outer wall of the actuating column, the grooves matching the shape of the spring block.
[0010] As a further technical solution of this utility model, a limiting step is welded to the middle position of the outer side of the execution column, and a blocking block is welded inside the fixing tube to prevent the execution column from being pulled out.
[0011] Compared with the prior art, the beneficial effects of this utility model are: the anti-accidental touch regulating valve actuator not only realizes the anti-accidental touch design, reducing the risk of human error, and is easy to operate, allowing for quick operation without the need for a viewing window, but also has an operation protection function to prevent damage and loss of parts;
[0012] The system includes a handle, indicator, mounting base, stationary contact plate, micro-motion unit, moving contact plate, guide plate, second gear, first gear, hollow cross sleeve, fixing tube, actuator, and cross key. Inside the housing, an anti-accidental touch feature is installed at the handle location. The mechanical rotation controls the electrical trigger, ensuring that each adjustment action is only issued after correct engagement. The anti-accidental touch design prevents external collisions with the handle from causing operational errors that could affect the operation of the air valve, reducing the risk of human error.
[0013] With a pre-reserved slot, spring block, mounting base, and groove, when the actuator is pushed into the fixed tube, the spring block slides against the outer wall of the actuator through the pre-reserved slot. When the actuator is pushed into place, that is, when the cross convex key is embedded in the cross hollow sleeve, the groove on the outside of the actuator comes to the bottom of the spring block. The spring block is stuck into the groove under its own elastic force, the pushing resistance disappears, and the operator can feel that the push is in place. It plays an auxiliary guiding function, which makes the operation convenient and allows for quick operation without observing the window.
[0014] By incorporating an actuator and a limit step, when the operator pulls the handle back, the cross-shaped key of the actuator is pulled out of the hollow cross sleeve, and the spring block also overcomes frictional resistance and pushes out of the groove. Due to the presence of the limit step, the actuator can only be pulled back a short distance. Obstructed by the stop block, the actuator cannot be pulled out of the fixed tube as a whole, thus preventing the handle from being pulled off the outer shell due to excessive force when pulling it out. This provides an operational protection function to prevent damage and loss of parts. Attached Figure Description
[0015] Figure 1 This is a front view structural diagram of the present utility model;
[0016] Figure 2 This is a side view of the handle structure of this utility model;
[0017] Figure 3 This is a side view of the execution column structure of this utility model;
[0018] Figure 4 This is a side view sectional diagram of the fixed tube structure of this utility model;
[0019] Figure 5 This is a schematic diagram of the rear view of the execution column structure of this utility model.
[0020] In the diagram: 1. Outer shell; 2. Antenna; 3. Handle; 4. Indicator; 5. Reserved slot; 6. Spring block; 7. Mounting base; 8. Fixing base; 9. Stationary contact piece; 10. Micro-motion unit; 11. Moving contact piece; 12. Guide piece; 13. Second gear; 14. First gear; 15. Cross hollow sleeve; 16. Fixing tube; 17. Stop block; 18. Actuating column; 19. Limiting step; 20. Groove; 21. Cross convex key. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figure 1-5 This utility model provides an embodiment of a regulating damper actuator to prevent accidental activation, comprising a housing 1, a fixed base 8 fixedly connected to the inner wall of the housing 1, a fixed tube 16 movably sleeved within the fixed base 8, a first gear 14 fixedly connected to the rear of the fixed tube 16, a second gear 13 meshing with one end of the first gear 14, a guide plate 12 fixedly mounted at the center of the second gear 13, a micro-motion unit 10 fixedly installed inside the housing 1, a stationary contact plate 9 and a moving contact plate 11 electrically connected to the micro-motion unit 10, and the fixed tube 16... A cross-shaped hollow sleeve 15 is welded to the rear end of the inner wall. An actuator 18 is inserted into the fixed tube 16. A handle 3 is fixedly installed at the rear end. Four sets of cross-shaped protrusions 21 surround the actuator 18. The cross-shaped protrusions 21 match the cross-shaped hollow sleeve 15. The second gear 13 is movably mounted at the fixed seat 8. The second gear 13 is movably mounted on the side wall of the outer shell 1. The micro-motion unit 10 is connected to two sets of antennas 2 through wires. The antennas 2 extend to the outside of the outer shell 1. An indicator 4 is set on the outside of the outer shell 1 to indicate the adjustment amount of the air valve.
[0023] Specifically, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, inside the outer casing 1, an anti-accidental-touch feature is installed at the location of the handle 3. When operating the handle 3, it cannot be rotated directly from the outside; the handle 3 must be pressed towards the outer casing 1 to push the second gear 13 connected to the handle 3 into the fixed tube 16 until the four sets of cross-shaped protrusions 21 at the front end of the actuator 18 are embedded in the cross-shaped hollow sleeve 15 inside the fixed tube 16. At this point, the actuator 18 is engaged with the fixed tube 16. When the handle 3 is rotated, the actuator 18 can drive the fixed tube 16 to rotate synchronously, thereby driving the first gear 14 fixedly connected to the fixed tube 16. When the first gear 14 rotates, the second gear 13, which meshes with the first gear 14, also rotates. The guide plate 12 then moves from the stationary contact plate 9 to the moving contact plate 11, triggering the micro-motion unit 10. Similarly, when the rotation is reversed, the guide plate 12 moves from the moving contact plate 11 to the stationary contact plate 9. The micro-motion unit 10 then sends a command to the air valve through the antenna 2. After receiving the signal, the air valve main board drives the air valve to open or adjust to a preset angle, thereby controlling and adjusting the airflow. Conversely, when the guide plate 12 rotates in the opposite direction and disengages from the moving contact plate 11, the circuit is broken, and the micro-motion unit 10 sends a closing command, causing the air valve to respond and perform a closing action.
[0024] A mounting base 7 is movably fitted at the fixed base 8. The mounting base 7 is fixedly sleeved on the outside of the fixed tube 16. A spring block 6 is movably fitted at the mounting base 7. A reserved groove 5 is opened at the top of the fixed tube 16. The spring block 6 is inserted into the reserved groove 5. A set of grooves 20 is machined on the outer wall of the actuator 18. The grooves 20 match the shape of the spring block 6.
[0025] Specifically, such as Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, when the actuator 18 is pushed into the fixed tube 16, the spring block 6 slides against the outer wall of the actuator 18 through the reserved groove 5. When the actuator 18 is pushed into place, that is, when the cross convex key 21 is embedded in the cross hollow sleeve 15, the groove 20 outside the actuator 18 comes to the bottom of the spring block 6. The spring block 6 is stuck into the groove 20 under its own elastic force, the pushing resistance disappears, and the operator can feel that the push is in place.
[0026] A limiting step 19 is welded to the middle of the outer side of the actuator 18, and a blocking block 17 is welded inside the fixing tube 16 to prevent the actuator 18 from being pulled out.
[0027] Specifically, such as Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, when the operator pulls the handle 3 back, the cross-shaped protrusion 21 of the actuator 18 is pulled out from the cross-shaped hollow sleeve 15, and the spring block 6 also overcomes the frictional resistance and is pushed out from the groove 20. Due to the existence of the limiting step 19, the actuator 18 can only be pulled back a short distance. Due to the obstruction of the stop block 17, the actuator 18 cannot be pulled out from the fixed tube 16 as a whole, thereby avoiding excessive force when pulling out the handle 3, which would cause the handle 3 to be pulled out from the outer shell 1.
[0028] Working principle: When operating handle 3, it cannot be rotated directly from the outside. Handle 3 must be pressed towards the outer casing 1 to push the second gear 13 connected to handle 3 into the fixed tube 16. When the actuator 18 is pushed into the fixed tube 16, the spring block 6 slides against the outer wall of the actuator 18 through the reserved groove 5. When the actuator 18 is pushed into place, that is, when the cross convex key 21 is embedded in the cross hollow sleeve 15, the groove 20 on the outside of the actuator 18 is exactly below the spring block 6. The spring block 6 is stuck into the groove 20 under its own elastic force, the pushing resistance disappears, and the operator can feel that it has been pushed into place. At this time, the actuator 18 is engaged with the fixed tube 16. When the operating handle 3 is rotated, the actuator 18... 8 can drive the fixed tube 16 to rotate synchronously, thereby driving the first gear 14, which is fixedly connected to the fixed tube 16, to rotate. The second gear 13, which meshes with the first gear 14, will rotate accordingly. Then the guide plate 12 will move from the stationary contact plate 9 to the moving contact plate 11, triggering the micro-motion unit 10. Similarly, when the rotation is reversed, the guide plate 12 will rotate from the moving contact plate 11 to the stationary contact plate 9. The micro-motion unit 10 will then send a command to the air valve through the antenna 2. After receiving the signal, the air valve main board will drive the air valve to open or adjust it to a preset angle to achieve air volume control and adjustment. Conversely, when the guide plate 12 rotates in the opposite direction and disengages from the moving contact plate 11, the circuit is broken, and the micro-motion unit 10 will send a closing command, and the air valve will respond and perform the closing action.
[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A regulating damper actuator designed to prevent accidental activation, comprising a housing (1), characterized in that: A fixed seat (8) is fixedly connected to the inner wall of the outer shell (1). A fixed tube (16) is movably sleeved inside the fixed seat (8). A first gear (14) is fixedly connected to the rear of the fixed tube (16). A second gear (13) is meshed at one end of the first gear (14). A guide plate (12) is fixedly mounted at the center of the second gear (13). A micro-motion unit (10) is fixed inside the outer shell (1). A stationary contact plate (9) and a moving contact plate (11) are electrically connected to the micro-motion unit (10). A cross hollow sleeve (15) is welded to the rear end of the inner wall of the fixed tube (16). An actuating column (18) is inserted into the fixed tube (16). A handle (3) is fixedly installed at the rear end. Four sets of cross protrusions (21) surround the outside of the actuating column (18). The cross protrusions (21) match the cross hollow sleeve (15).
2. The anti-accidental activation regulating damper actuator according to claim 1, characterized in that: The second gear (13) is movably mounted on the fixed seat (8) and the second gear (13) is movably mounted on the side wall of the outer casing (1).
3. The anti-accidental activation regulating damper actuator according to claim 1, characterized in that: The micro-motion unit (10) is connected to two sets of antennas (2) via wires, and the antennas (2) extend to the outside of the outer shell (1).
4. The anti-accidental activation regulating damper actuator according to claim 1, characterized in that: An indicator (4) is provided on the outside of the housing (1) to indicate the adjustment amount of the air valve.
5. The anti-accidental activation regulating damper actuator according to claim 1, characterized in that: A mounting base (7) is movably mounted on the fixed base (8). The mounting base (7) is fixedly sleeved on the outside of the fixed tube (16). A spring block (6) is movably mounted on the mounting base (7). A reserved groove (5) is opened at the top of the fixed tube (16). The spring block (6) penetrates into the reserved groove (5). A set of grooves (20) is machined on the outer wall of the actuating column (18). The grooves (20) match the shape of the spring block (6).
6. The anti-accidental activation regulating damper actuator according to claim 1, characterized in that: A limiting step (19) is welded to the middle position of the outside of the actuator (18), and a blocking block (17) is welded inside the fixing tube (16) to prevent the actuator (18) from being pulled out.