Plug-in type ventilation pipeline valve
By designing plug-in ventilation duct valves, and utilizing rotating rollers, valve plates, and fixing mechanisms, the problem of valve plate angle not being fixed under high-velocity airflow was solved, achieving both stability and flow regulation.
Patent Information
- Application Number
- CN202520245858.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-02-17
AI Technical Summary
In existing ventilation duct valves, the valve plate angle is difficult to fix under high-velocity airflow, resulting in low device stability.
The valve is a plug-in type ventilation duct valve, including a rotating roller, valve plate, fixing mechanism and installation mechanism. Through the cooperation of limit rod, telescopic component and locking block, the valve plate angle is fixed and the airflow is adjusted to ensure that the valve plate does not rotate under high flow rate airflow.
This technology enables the valve plate angle to be fixed under high-velocity airflow, improving the stability of the device and allowing for the adjustment of airflow to meet specific ventilation requirements.
Smart Images

Figure CN223923855U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline valve technology, and in particular to a plug-in ventilation pipeline valve. Background Technology
[0002] Ventilation duct valves are devices used to control airflow in ventilation ducts. They play a crucial role in ventilation systems. However, current ventilation duct valves can only be opened or closed and cannot regulate the flow rate of air, thus failing to meet specific ventilation needs.
[0003] In the prior art, a rotating roller and a valve are installed inside the pipe. The airflow is adjusted by adjusting the angle of the valve to meet specific ventilation requirements.
[0004] However, in the existing technology, when the airflow velocity is high, the airflow blows towards the valve plate, and the angle of the valve plate is difficult to fix and it rotates, resulting in low stability of the device. Utility Model Content
[0005] The purpose of this invention is to provide a plug-in ventilation duct valve, which aims to solve the problem in the prior art where, when the airflow velocity is high, the airflow blows towards the valve plate, and the valve plate angle is difficult to fix, causing it to rotate, resulting in low stability of the device.
[0006] To achieve the above objectives, this utility model provides a plug-in ventilation duct valve, including a pipe body, a rotating roller, a valve plate, and a fixing mechanism. The fixing mechanism includes a mounting base, a mounting plate, a limiting rod, and a telescopic assembly. The rotating roller has multiple limiting holes. The rotating roller is rotatably connected to the pipe body and extends outside the pipe body. The valve plate is fixedly connected to the rotating roller and located inside the pipe body. The mounting base is fixedly connected to the pipe body and located above the pipe body. The mounting plate is fixedly connected to the mounting base and located above the mounting base. The limiting rod is slidably connected to the mounting plate and extends into the limiting holes. The telescopic assembly is disposed between the end of the limiting rod away from the rotating roller and the mounting plate.
[0007] The telescopic assembly includes a telescopic spring and a movable block. The movable block is fixedly connected to the limiting rod and is located at the end of the limiting rod away from the rotating roller. The two ends of the telescopic spring are fixedly connected to the movable block and the mounting plate, respectively, and the limiting rod is located inside the telescopic spring.
[0008] The fixing mechanism further includes two locking blocks, which are fixedly connected to both ends of the tube body and located on both sides of the valve plate.
[0009] The plug-in ventilation duct valve also includes an installation mechanism, which is located at one end of the duct body.
[0010] The installation mechanism includes an external threaded cylinder, an internal threaded cylinder, and a sealing ring. The external threaded cylinder is fixedly connected to the pipe body and located at one end of the pipe body. The internal threaded cylinder is threadedly connected to the external threaded cylinder and extends into the external threaded cylinder. The sealing ring is fixedly connected to the pipe body and located on one side of the external threaded cylinder.
[0011] This utility model discloses a plug-in ventilation duct valve. When airflow passes through the duct body, the valve can be adjusted to control the airflow volume. To stop airflow through the duct body, the limiting rod is pulled outward, disengaging it from the limiting hole. The telescopic assembly extends, and then the rotating roller and the valve plate are rotated until the valve plate completely seals the duct body. At this point, the limiting rod is released, and the telescopic assembly drives the limiting rod to insert into the corresponding limiting hole. When a smaller airflow is needed, the rotating roller and the valve plate are rotated again, aligning the limiting hole closest to the limiting rod with the limiting rod, and the limiting rod inserts into the corresponding limiting hole. The rotating roller and the valve plate rotate sequentially. When the limiting rod is inserted into the limiting hole furthest from the current limiting rod, the duct body is fully open, maximizing the airflow. This design controls the airflow through the duct body and fixes the valve plate, ensuring that the valve plate's angle does not change when airflow hits it, thus improving the stability of the device. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0013] Figure 1 This is a schematic diagram of the plug-in ventilation duct valve of this utility model.
[0014] Figure 2 This is a schematic diagram of the plug-in ventilation duct valve of this utility model from another direction.
[0015] Figure 3 This is the utility model Figure 2 Enlarged view of the local structure at point A.
[0016] Figure 4 This is a cross-sectional view of the plug-in ventilation duct valve of this utility model.
[0017] Figure 5 This is a schematic diagram of the internal structure of the tube in this utility model.
[0018] 101-Pipe body, 102-External threaded cylinder, 103-Internal threaded cylinder, 104-Rotating roller, 105-Valve plate, 106-Clamping block, 107-Mounting seat, 108-Mounting plate, 109-Limiting rod, 110-Moving block, 111-Telescopic spring, 112-Limiting hole, 113-Sealing ring. Detailed Implementation
[0019] Please see Figures 1 to 5 ,in, Figure 1 This is a schematic diagram of the plug-in ventilation duct valve of this utility model. Figure 2 This is a schematic diagram of the plug-in ventilation duct valve of this utility model from another direction. Figure 3 This is the utility model Figure 2 Enlarged view of the local structure at point A. Figure 4 This is a cross-sectional view of the plug-in ventilation duct valve of this utility model. Figure 5 This is a schematic diagram of the internal structure of the tube in this utility model.
[0020] This utility model provides a plug-in ventilation duct valve, including a pipe body 101, a rotating roller 104, a valve plate 105, an installation mechanism, and a fixing mechanism. The fixing mechanism includes a mounting base 107, two locking blocks 106, a mounting plate 108, a limiting rod 109, and a telescopic assembly. The rotating roller 104 has multiple limiting holes 112. The telescopic assembly includes a telescopic spring 111 and a moving block 110. The installation mechanism includes an external threaded cylinder 102, an internal threaded cylinder 103, and a sealing ring 113. This solution solves the problem in the prior art where, when the airflow velocity is high, the airflow blows towards the valve plate 105, causing the valve plate 105 to rotate due to difficulty in fixing its angle, resulting in low stability of the device. It is understood that by fixing the internal threaded cylinder 103 to one end of the ventilation duct and connecting the pipe body 101 to the ventilation duct through the external threaded cylinder 102 and the internal threaded cylinder 103, the valve installation is more convenient.
[0021] In this embodiment, the rotating roller 104 is rotatably connected to the tube body 101 and extends outside the tube body 101; the valve plate 105 is fixedly connected to the rotating roller 104 and located inside the tube body 101; the mounting base 107 is fixedly connected to the tube body 101 and located above the tube body 101; the mounting plate 108 is fixedly connected to the mounting base 107 and located above the mounting base 107; and the limiting rod 109 slides against the mounting plate 108. The telescopic assembly is connected to and extends into the limiting hole 112. It is positioned between the end of the limiting rod 109 away from the rotating roller 104 and the mounting plate 108. When airflow passes through the pipe body 101, the valve can be adjusted to control the airflow. To stop airflow from passing through the pipe body 101, the limiting rod 109 is pulled outwards, causing it to move away from the limiting hole 112. The telescopic assembly extends, and then the rotating roller 104 and the valve plate 105 are rotated. Until the valve plate 105 completely seals the tube body 101, the limiting rod 109 is released. The telescopic assembly drives the limiting rod 109 to insert into the corresponding limiting hole 112. When a small airflow is needed to pass through the tube body 101, the rotating roller 104 and the valve plate 105 are rotated again, so that the limiting hole 112 closest to the limiting rod 109 is aligned with the limiting rod 109, and the limiting rod 109 is inserted into the corresponding limiting hole 112. The moving roller 104 and the valve plate 105 rotate sequentially. When the limiting rod 109 is inserted into the limiting hole 112 furthest from the limiting rod 109 at this time, the tube 101 is in a fully open state, and the air flow is at its maximum. The aforementioned scheme can control the amount of air flow through the tube 101 and fix the valve plate 105 to ensure that the angle of the valve plate 105 does not change when the airflow blows towards the valve plate 105, thereby improving the stability of the device.
[0022] Furthermore, the movable block 110 is fixedly connected to the limiting rod 109 and is located at the end of the limiting rod 109 away from the rotating roller 104. The two ends of the telescopic spring 111 are fixedly connected to the movable block 110 and the mounting plate 108 respectively, and the limiting rod 109 is located inside the telescopic spring 111.
[0023] In this embodiment, when adjusting the airflow, the limiting rod 109 is pulled outward to move it away from the limiting hole 112. At this time, the telescopic spring 111 is in a stretched state. When fixing the rotating roller 104 and the valve plate 105, the rotating roller 104 is moved to an appropriate position, and the limiting rod 109 is aligned with the corresponding limiting hole 112. When the limiting rod 109 is released, the telescopic spring 111 contracts and resets under its own elastic potential energy, and drives the limiting rod 109 to insert into the corresponding limiting hole 112, thereby fixing the rotating roller 104 and the valve plate 105 and ensuring that the angle of the valve plate 105 remains fixed when the airflow passes through the pipe body 101.
[0024] Furthermore, the two locking blocks 106 are fixedly connected to both ends of the tube body 101 and are located on both sides of the valve plate 105.
[0025] In this embodiment, the two locking blocks 106 are respectively disposed at both ends of the tube body 101. When the valve plate 105 is in the closed state, the two locking blocks 106 seal the gap between the valve plate 105 and the tube body 101 to ensure that the airflow does not pass through the tube body 101.
[0026] Furthermore, the installation mechanism is located at one end of the tube body 101.
[0027] Furthermore, the external threaded cylinder 102 is fixedly connected to the pipe body 101 and located at one end of the pipe body 101, the internal threaded cylinder 103 is threadedly connected to the external threaded cylinder 102 and extends into the external threaded cylinder 102, and the sealing ring 113 is fixedly connected to the pipe body 101 and located on one side of the external threaded cylinder 102.
[0028] In this embodiment, one end of the internal threaded cylinder 103 is fixedly connected to the ventilation duct. When installing the pipe body 101, the external threaded cylinder 102 is aligned with the internal threaded cylinder 103, and the external threaded cylinder 102 and the internal threaded cylinder 103 are threaded together. The sealing ring 113 seals the gap between the external threaded cylinder 102 and the internal threaded cylinder 103. In this way, the pipe body 101 can be quickly inserted into the ventilation duct.
[0029] When using this invention, the valve can be adjusted to control the airflow. To stop the airflow through the pipe 101, pull the limiting rod 109 outwards, causing it to move away from the limiting hole 112. The telescopic spring 111 will then stretch. Next, rotate the rotating roller 104 and the valve plate 105 until the valve plate 105 completely seals the pipe 101. At this point, release the limiting rod 109, and the telescopic spring 111 will cause the limiting rod 109 to re-enter the corresponding limiting hole 112. To allow a smaller airflow through the pipe 101, rotate the rotating roller 104 and the valve plate 105 again, moving it away from the limiting rod. The nearest limiting hole 112 of the rod 109 is aligned with the limiting rod 109, and the limiting rod 109 is inserted into the corresponding limiting hole 112. The rotating roller 104 and the valve plate 105 rotate sequentially. When the limiting rod 109 is inserted into the limiting hole 112 furthest from the limiting rod 109 at this time, the tube body 101 is in a fully open state, and the air flow is at its maximum. The aforementioned scheme can control the air flow through the tube body 101 and fix the valve plate 105 to ensure that the angle of the valve plate 105 does not change when the airflow blows towards the valve plate 105, thereby improving the stability of the device.
[0030] The above-disclosed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art will understand that all or part of the processes for implementing the above embodiments, and equivalent variations made in accordance with the claims of this application, still fall within the scope of this application.
Claims
1. A plug-type ventilation duct valve, comprising a pipe body, a rotating roller and a valve sheet, the rotating roller is rotatably connected with the pipe body and extends out of the pipe body, the valve sheet is fixedly connected with the rotating roller and is located in the pipe body, characterized in that, further comprising a fixing mechanism, the fixing mechanism comprises a mounting seat, a mounting plate, a limiting rod and a telescopic assembly, the rotating roller has a plurality of limiting holes, the mounting seat is fixedly connected with the pipe body and is located above the pipe body, the mounting plate is fixedly connected with the mounting seat and is located above the mounting seat, the limiting rod is slidably connected with the mounting plate and extends into the limiting hole, and the telescopic assembly is arranged between the end of the limiting rod away from the rotating roller and the mounting plate.
2. The plug-type ventilation duct valve according to claim 1, characterized in that, the telescopic assembly comprises a telescopic spring and a moving block, the moving block is fixedly connected with the limiting rod and is located at the end of the limiting rod away from the rotating roller, and the two ends of the telescopic spring are fixedly connected with the moving block and the mounting plate respectively, and the limiting rod is located in the telescopic spring.
3. The plug-type ventilation duct valve according to claim 2, characterized in that, the fixing mechanism further comprises two clamping blocks, the two clamping blocks are fixedly connected with the two ends of the pipe body respectively and are located on the two sides of the valve sheet respectively.
4. The plug-type ventilation duct valve according to claim 3, characterized in that, the plug-type ventilation duct valve further comprises a mounting mechanism, and the mounting mechanism is arranged at one end of the pipe body.
5. The plug-type ventilation duct valve according to claim 4, characterized in that, the mounting mechanism comprises an outer threaded cylinder, an inner threaded cylinder and a sealing ring, the outer threaded cylinder is fixedly connected with the pipe body and is located at one end of the pipe body, the inner threaded cylinder is threadedly connected with the outer threaded cylinder and extends into the outer threaded cylinder, and the sealing ring is fixedly connected with the pipe body and is located on one side of the outer threaded cylinder.