A valve device with a mechanically triggered alarm function
By introducing a mechanical alarm component into the valve device, and utilizing the linkage structure of the cam rod and the slider to realize the alarm of the valve sealing status, the problem of alarm when the valve is not fully closed is solved, and the efficiency of safety monitoring is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING HONGXU THERMAL ENERGY TECH CO LTD
- Filing Date
- 2025-08-13
- Publication Date
- 2026-06-05
AI Technical Summary
Existing valve devices lack alarm components, making it impossible to provide timely and effective alarms when valves are not fully closed or are loose, resulting in reduced efficiency.
A device comprising a valve body and a mechanical alarm component was designed. Through a mechanical linkage structure of a cam rod, a slider, a spring, a traction rod, and a contact switch, the valve stem's sealing state changes to trigger an alarm, and a buzzer is controlled by a controller to sound the alarm.
When the valve is not fully closed, a mechanically linked alarm structure can provide a direct warning, improving the efficiency of safety monitoring.
Smart Images

Figure CN224326779U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of valve-related products, specifically a valve device with a mechanically triggered alarm function. Background Technology
[0002] A valve is a device used to control and regulate the flow of fluid media, and it is widely used in various industrial fields. Simply put, a valve is like a switch in a pipeline, controlling parameters such as the flow rate, direction, and pressure of the fluid.
[0003] However, the existing valve devices lack alarm components, and cannot provide timely and effective alarms when the valve is not fully closed or is loose, which leads to reduced valve efficiency and is therefore defective. Utility Model Content
[0004] The purpose of this invention is to provide a valve device with a mechanically triggered alarm function to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a valve device with a mechanically triggered alarm function, comprising a valve body and a mechanical alarm component. The mechanical alarm component includes a fixing component and an L-shaped positioning plate. The fixing component is fixed to the valve stem of the valve body. A cam rod is fixedly connected to one side of the fixing component. The L-shaped positioning plate is fixed to the valve body. Two grooves are provided on one side of the L-shaped positioning plate. A sliding rod is fixedly connected to each of the two grooves. A slider is slidably sleeved on the sliding rod. A spring is fixedly connected between one side of the slider and the inner wall of the groove. A traction rod is rotatably connected to the slider. A connecting block is rotatably connected to one end of the traction rod. A rebound plate is fixedly connected to one end of the connecting block. A wedge plate is fixedly connected to one end of the rebound plate. A contact block is fixedly connected to one side of the bottom end of the rebound plate. An installation block is fixedly connected to the top of the L-shaped positioning plate. A contact switch is fixedly connected to one side of the installation block. A buzzer and a controller are fixedly connected to the outer wall of the L-shaped positioning plate.
[0006] In a preferred embodiment of this invention, the input terminal of the controller is electrically connected to the contact switch, and the output terminal of the controller is electrically connected to the input terminal of the buzzer.
[0007] As a preferred embodiment of this utility model, the fixing component includes two clamping plates sleeved on the outside of the valve stem of the valve body. Both ends of the two clamping plates are fixedly connected to assembly blocks. A locking screw is inserted between two adjacent assembly blocks, and a fastening nut is threaded onto one end of the locking screw.
[0008] As a preferred embodiment of the present invention, one end of the cam rod is provided with the outer side of the wedge plate, and the end of the cam rod near the wedge plate is polished.
[0009] As a preferred embodiment of this utility model, the inner wall of the clamp plate is provided with multiple anti-slip patterns, all of which are inclined.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] This valve device with mechanically triggered alarm function, after the valve stem tightens and seals the valve body, uses a fixing component to fix the cam rod on the valve stem. At this time, one end of the cam rod presses against the wide surface of the wedge plate, causing the spring plate to drive the two traction rods to push the slider to slide on the slide rod. At this time, the spring is in a compressed state, and the contact block separates from the contact switch.
[0012] This valve device with mechanically triggered alarm function changes position when the valve stem does not seal the valve body tightly, placing the cam rod on the inclined surface of the wedge plate. At the same time, the rebound plate lacks resistance. The spring in the compressed state pushes the slider back and pushes the rebound plate with the traction rod. At this time, the contact block on one side of the rebound plate presses against the contact switch to energize it. The controller receives the signal and controls the buzzer to sound an alarm.
[0013] This valve device with mechanically triggered alarm function can provide a visual warning via light signals when the valve is not fully closed, thus improving the efficiency of safety monitoring. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of a valve device with a mechanically triggered alarm function according to the present invention;
[0015] Figure 2 This is a schematic diagram of the mechanical alarm component of a valve device with a mechanically triggered alarm function according to this utility model;
[0016] Figure 3 This is a schematic diagram of the fixed component structure of a valve device with a mechanically triggered alarm function according to this utility model.
[0017] In the diagram: 1. Valve body; 2. Mechanical alarm assembly; 3. Fixing assembly; 4. L-shaped positioning plate; 5. Cam rod; 6. Slide rod; 7. Slider; 8. Spring; 9. Traction rod; 10. Connecting block; 11. Rebound plate; 12. Wedge plate; 13. Contact block; 14. Mounting block; 15. Contact switch; 16. Buzzer; 17. Controller; 18. Clamp plate; 19. Assembly block; 20. Locking screw; 21. Fastening nut. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0019] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0021] Please see Figure 1-3This utility model provides an embodiment of a valve device with a mechanically triggered alarm function, comprising a valve body 1 and a mechanical alarm component 2. The mechanical alarm component 2 includes a fixing component 3 and an L-shaped positioning plate 4. The fixing component 3 is fixed to the valve stem of the valve body 1, and a cam rod 5 is fixedly connected to one side of the fixing component 3. The L-shaped positioning plate 4 is fixed to the valve body 1, and two grooves are provided on one side of the L-shaped positioning plate 4. A sliding rod 6 is fixedly connected to each of the two grooves. A slider 7 is slidably sleeved on the sliding rod 6. A spring 8 is fixedly connected between one side of the slider 7 and the inner wall of the groove. A traction rod 9 is rotatably connected to the slider 7. A connecting block 10 is rotatably connected to one end of the traction rod 9. A rebound plate 11 is fixedly connected to one end of the connecting block 10. A wedge plate 12 is fixedly connected to one end of the rebound plate 11. The bottom end of the rebound plate 11... A contact block 13 is fixedly connected to one side, and an mounting block 14 is fixedly connected to the top of the L-shaped positioning plate 4. A contact switch 15 is fixedly connected to one side of the mounting block 14. A buzzer 16 and a controller 17 are fixedly connected to the outer wall of the L-shaped positioning plate 4. Specifically, one end of the cam rod 5 presses against the wide surface of the wedge plate 12, causing the spring plate 11 to drive the two traction rods 9 to push the slider 7 to slide on the slide rod 6. At this time, the spring 8 is in a compressed state, and the contact block 13 and the contact switch 15 are separated. When the valve stem does not seal the valve body 1 tightly, the position of the cam rod 5 changes and is placed on the inclined surface of the wedge plate 12. At the same time, the spring plate 11 lacks pressure. At this time, the spring 8 in a compressed state pushes the slider 7 back and uses the traction rod 9 to push the spring plate 11. At this time, the contact block 13 on one side of the spring plate 11 presses against the contact switch 15 to energize it. The controller 17 receives the signal and controls the buzzer 16 to sound an alarm.
[0022] refer to Figure 2 The input terminal of the controller 17 is electrically connected to the contact switch 15, and the output terminal of the controller 17 is electrically connected to the input terminal of the buzzer 16.
[0023] As a technical optimization of this utility model, the controller 17 receives the signal from the contact switch 15 to control the start and stop of the buzzer 16.
[0024] refer to Figure 3 The fixing component 3 includes two clamping plates 18 sleeved on the outside of the valve stem of the valve body 1. Both ends of the two clamping plates 18 are fixedly connected to assembly blocks 19. A locking screw 20 is inserted between two adjacent assembly blocks 19. A fastening nut 21 is threaded onto one end of the locking screw 20.
[0025] As a technical optimization of this utility model, the valve stem is fixed by clamping the clamp plate 18 by inserting the locking screw 20 between the two assembly blocks 19 and tightening it with the fastening nut 21.
[0026] refer to Figure 3 One end of the cam rod 5 is provided with the outer side of the wedge plate 12, and the end of the cam rod 5 near the wedge plate 12 is polished.
[0027] As a technical optimization of this utility model, the polished surface of the cam rod 5 can reduce the frictional resistance when pressing against the wedge plate 12.
[0028] refer to Figure 3 The inner sidewall of the clamp plate 18 is provided with multiple anti-slip patterns, all of which are inclined.
[0029] As a technical optimization of this utility model, the contact friction between the valve stem and the valve is increased to improve stability.
[0030] The working principle of this valve device with mechanically triggered alarm function is described in detail below: First, after the valve stem tightens and seals the valve body 1, the cam rod 5 is fixed to the valve stem using the fixing component 3. At this time, one end of the cam rod 5 presses against the wide surface of the wedge plate 12, causing the spring plate 11 to drive the two traction rods 9 to push the slider 7 to slide on the slide rod 6. At this time, the spring 8 is in a compressed state, and the contact block 13 separates from the contact switch 15. When the valve stem does not seal the valve body 1 tightly, the position of the cam rod 5 changes and is placed on the inclined surface of the wedge plate 12. At the same time, the spring plate 11 lacks pressure. At this time, the spring 8 in a compressed state pushes the slider 7 back and uses the traction rods 9 to push the spring plate 11. At this time, the contact block 13 on one side of the spring plate 11 presses against the contact switch 15 to energize it. The controller 17 receives the signal and controls the buzzer 16 to sound an alarm.
[0031] 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 valve device with a mechanically triggered alarm function, comprising a valve body (1) and a mechanical alarm component (2), characterized in that: The mechanical alarm component (2) includes a fixing component (3) and an L-shaped positioning plate (4). The fixing component (3) is fixed to the valve stem of the valve body (1). A cam rod (5) is fixedly connected to one side of the fixing component (3). The L-shaped positioning plate (4) is fixed to the valve body (1). Two grooves are provided on one side of the L-shaped positioning plate (4). A slide rod (6) is fixedly connected to each of the two grooves. A slider (7) is slidably sleeved on the slide rod (6). A spring (8) is fixedly connected between one side of the slider (7) and the inner wall of the groove. The slider (7) rotates... A traction rod (9) is connected, and a connecting block (10) is rotatably connected to one end of the traction rod (9). A spring plate (11) is fixedly connected to one end of the connecting block (10). A wedge plate (12) is fixedly connected to one end of the spring plate (11). A contact block (13) is fixedly connected to one side of the bottom end of the spring plate (11). An installation block (14) is fixedly connected to the top of the L-shaped positioning plate (4). A contact switch (15) is fixedly connected to one side of the installation block (14). A buzzer (16) and a controller (17) are fixedly connected to the outer wall of the L-shaped positioning plate (4).
2. The valve device with mechanically triggered alarm function according to claim 1, characterized in that: The input terminal of the controller (17) is electrically connected to the contact switch (15), and the output terminal of the controller (17) is electrically connected to the input terminal of the buzzer (16).
3. The valve device with mechanically triggered alarm function according to claim 1, characterized in that: The fixing component (3) includes two clamping plates (18) sleeved on the outside of the valve stem of the valve body (1). Both ends of the two clamping plates (18) are fixedly connected to assembly blocks (19). A locking screw (20) is inserted between two adjacent assembly blocks (19). One end of the locking screw (20) is threaded with a fastening nut (21).
4. A valve device with mechanically triggered alarm function according to claim 1, characterized in that: One end of the cam rod (5) is provided with the outer side of the wedge plate (12), and the end of the cam rod (5) near the wedge plate (12) is polished.
5. A valve device with mechanically triggered alarm function according to claim 3, characterized in that: The inner wall of the clamp plate (18) is provided with multiple anti-slip patterns, all of which are inclined.