Leak-proof valve
Through the mechanical structure of the anti-leakage valve, the use of trigger mechanism and torsion spring linkage, combined with the deformation of the rubber tube and the water pressure sensing of the magnet ramp, the problem of poor reliability of traditional valves in extreme environments is solved, and fast and reliable medium isolation is achieved, which is suitable for emergency water outage scenarios.
Patent Information
- Application Number
- CN202511038610.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-28
- Publication Date
- 2025-09-05
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing automatic valves are prone to failure in humid, corrosive or electromagnetic interference environments, resulting in reduced system reliability and inability to effectively block media leakage.
The anti-leakage valve adopts a mechanical structure, uses a trigger mechanism and a torsion spring to realize the automatic isolation function, and realizes automatic closing through the deformation and mechanical interlocking of the rubber tube, combined with the water pressure sensing of the magnet and the bevel.
It operates stably in extreme environments, avoids electronic component failures, achieves fast and reliable dielectric isolation, reduces maintenance costs, and is suitable for emergency water outage scenarios.
Smart Images
Figure CN120593067A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of fluid control, and in particular to an anti-leakage valve. Background Art
[0002] An anti-leakage valve is a special device that actively blocks abnormal leakage of media (such as liquids and gases) in a pipeline system through mechanical sealing, dynamic compensation or intelligent control mechanisms; traditional valves and isolation devices have long had the following technical bottlenecks: existing automatic valves generally rely on electronic components such as solenoid valves and pressure sensors, which are prone to failure in humid, corrosive or electromagnetic interference environments, resulting in reduced system reliability. Therefore, this application proposes an anti-leakage valve to address the above problems. Summary of the Invention
[0003] In view of this, the technical problem to be solved by the present invention is to provide an anti-leakage valve, which can use a mechanical structure to realize an automatic isolation function when a pipeline leak occurs, thereby further improving reliability.
[0004] A leakage-proof valve comprises a shell, in which a valve core is rotatably connected, one end of the shell is fixedly connected to a liquid inlet pipe, the other end of the shell is fixedly connected to a rubber tube, the other end of the rubber tube is fixedly connected to a liquid discharge pipe, the upper end of the shell is fixedly connected to a fixed rod, two rotating frames are rotatably connected to the fixed rod, the two rotating frames are symmetrical about the axis of the fixed rod, a torsion spring is fixedly connected between the two rotating frames, one of the rotating frames is fixedly connected to a ridge; the other rotating frame is provided with a groove, and a trigger mechanism is provided above the two rotating frames.
[0005] The inner wall of the rubber tube is provided with spiral protrusions.
[0006] The upper end of the discharge pipe is fixedly connected to a first circular tube, a first sliding plug is slidably connected inside the first circular tube, the lower end of the first sliding plug is fixedly connected to a first spring, the lower end of the first spring is fixedly connected to an inclined plate, the inclined plate is made of stainless steel, and a magnet block is fixedly connected to the outer wall of the discharge pipe.
[0007] The upper end of the first sliding plug is fixedly connected to the first telescopic rod, the upper end of the valve core is fixedly connected to the valve stem, and the top of the valve stem is fixedly connected to the handle.
[0008] One end of the handle is fixedly connected with a trapezoidal block, and the upper end of the first telescopic rod is fixedly connected with a contact block.
[0009] The trigger mechanism includes two clamping blocks, which are respectively fixedly connected to the upper ends of the two rotating frames. A limit frame is arranged above the two clamping blocks, and both clamping blocks are in contact with the inner wall of the limit frame.
[0010] The upper end of the discharge pipe is fixedly connected to a second round tube, a second sliding plug is slidably connected in the second round tube, the upper end of the second sliding plug is fixedly connected to a second telescopic rod, a second spring is provided between the upper end of the second sliding plug and the inner wall of the discharge pipe, and the limit frame is fixedly connected to the upper end of the second telescopic rod.
[0011] The upper end of the handle is fixedly connected with a knob.
[0012] The ends of the liquid inlet pipe and the liquid discharge pipe are both fixedly connected with flanges.
[0013] The rubber tube is straight in the middle and tapered at both ends. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.
[0015] Figure 1 and Figure 2 It is a schematic diagram of the overall structure of an anti-leakage valve;
[0016] Figure 3 is a structural cross-sectional view of the first circular tube;
[0017] Figure 4 Schematic diagram of the structure of the rotating frame;
[0018] Figure 5 Schematic diagram of the structure of ridges and grooves;
[0019] Figure 6 is a structural cross-sectional view of the second circular tube;
[0020] Figure 7 It is a structural cross-sectional view of the valve core;
[0021] Figure 8 It is a structural diagram of the limit frame. DETAILED DESCRIPTION
[0022] The present invention is described in detail with reference to the accompanying drawings in the embodiments of the present invention.
[0023] A leakage-proof valve comprises a housing 101, in which a valve core 102 is rotatably connected. A liquid inlet pipe 103 is fixedly connected to one end of the housing 101, a rubber tube 201 is fixedly connected to the other end of the housing 101, and a liquid discharge pipe 203 is fixedly connected to the other end of the rubber tube 201. A fixing rod 301 is fixedly connected to the upper end of the housing 101, and two rotating racks 303 are rotatably connected to the fixing rod 301. The two rotating racks 303 are symmetrical about the axis of the fixing rod 301. A torsion spring 302 is fixedly connected between the two rotating racks 303, one of the rotating racks 303 is fixedly connected to a ridge 304; a groove 305 is provided on the other rotating rack 303, and a trigger mechanism is provided above the two rotating racks 303.
[0024] See Figure 4-5 and Figure 7-8 ,
[0025] When using the valve, the liquid inlet pipe 103 and the liquid discharge pipe 203 are connected to other pipelines, and water flows into the shell 101 through the liquid inlet pipe 103. The user controls the rotation of the valve core 102 to make the water flow through the circular hole in the middle of the valve core 102, and then enter the liquid discharge pipe 203 through the rubber tube 201, and finally flow into other pipelines through the liquid discharge pipe 203. When the valve core 102 rotates 90°, the water cannot flow through the circular hole in the middle of the valve core 102, thereby realizing the function of closing the valve.
[0026] When the valve is in normal use, the trigger mechanism can keep the two rotating frames 303 in an open state. At this time, the torsion spring 302 is in a stressed state. When a leak occurs in the pipeline connected to the discharge pipe 203, the water pressure inside the valve decreases, thereby activating the trigger mechanism, so that the two rotating frames 303 automatically close under the action of the torsion spring 302. The two rotating frames 303 are buckled together. At this time, the two rotating frames 303 can squeeze the rubber tube 201 between them. Since the rubber tube 201 has the ability to deform, it can limit the flow of water through the rubber tube 201, thereby preventing water from continuing to leak, realizing the function of automatically cutting off the water source, making it convenient to wait for professional maintenance and further reduce losses.
[0027] Since one of the rotating frames 303 is fixedly connected with a ridge 304 and the other rotating frame 303 is provided with a groove 305, when the two rotating frames 303 are buckled together, the ridge 304 can carry the wall of the rubber tube 201 and insert into the groove 305. Under the cooperation of the ridge 304 and the groove 305, the rubber tube 201 undergoes a U-shaped deformation, thereby further improving the sealing performance and ensuring that the water source is isolated.
[0028] This application physically cuts off the water source in the event of a valve leak, which is more stable and reliable than the electronic sensor method and avoids damage to electronic components and power outages.
[0029] Automatic closure is achieved through the mechanical linkage of torsion spring 302 and rotating frame 303, completely eliminating the risk of component aging and power failure that may exist in electronic sensors. It maintains stable operation even in extreme environments, such as high temperature, high humidity, and corrosive media. When the water pressure inside the valve decreases, the trigger mechanism automatically senses the pressure change through the principles of fluid dynamics, eliminating the need for a preset threshold.
[0030] After the rubber tube wall is embedded in the groove, a mechanical interlock is formed, the contact area is increased, and the rubber elastic modulus stores energy during deformation, thereby enhancing the sealing pressure. The preload force of the torsion spring 302 is amplified by the lever ratio of the rotating frame 303, ensuring that the closing action is completed instantly. The mechanical structure has no electronic components, and daily maintenance only requires checking the elasticity of the rubber tube 201, which reduces maintenance costs.
[0031] A spiral protrusion 202 is provided on the inner wall of the rubber tube 201 .
[0032] See Figure 6 ,
[0033] When the valve is in normal use, the trigger mechanism can keep the two rotating frames 303 in an open state, and the torsion spring 302 is in a stressed state. When a leak occurs in the pipeline connected to the discharge pipe 203, the water pressure inside the valve decreases, thereby activating the trigger mechanism, so that the two rotating frames 303 automatically close under the action of the torsion spring 302, and the two rotating frames 303 are buckled together. At this time, the two rotating frames 303 can squeeze the rubber tube 201 between them; when the rubber tube 201 is squeezed, the inner walls of the rubber tube 201 fit together, so that the spiral protrusions 202 fit together in an interlaced manner, and the spiral protrusion 202 on one side can be inserted into the groove formed between the spiral protrusions 202 on the other side, thereby further improving the water barrier.
[0034] The spiral protrusions 202 on the inner wall of the rubber tube form a staggered interlocking structure when squeezed, which is similar to the sawtooth sealing principle and can reduce the area of the microscopic leakage channel.
[0035] The upper end of the drainage pipe 203 is fixedly connected to the first circular tube 402, and the first sliding plug 403 is slidably connected inside the first circular tube 402. The lower end of the first sliding plug 403 is fixedly connected to the first spring 406, and the lower end of the first spring 406 is fixedly connected to the inclined plate 407, which is made of stainless steel. The outer wall of the drainage pipe 203 is fixedly connected to a magnet block 408.
[0036] See Figure 3 ,
[0037] When the valve is opened, water flows through the drain pipe 203. Since the lower part of the inclined piece 407 is inclined, when the water flows into contact with the inclined piece 407, the inclined piece 407 moves upward under the action of the water flow impact. At the same time, the first spring 406 is compressed. When the water pressure caused by pipeline leakage gradually decreases, the inclined piece 407 can automatically move downward under the action of the first spring 406, so that the inclined piece 407 can be close to the magnet block 408. Since the inclined piece 407 is made of stainless steel, the magnet block 408 can adsorb the inclined piece 407, making it impossible for the inclined piece 407 to reset. At this time, the inclined piece 407 causes resistance to the water flow, so that the water pressure in the drain pipe 203 gradually increases, reducing water leakage.
[0038] The upper end of the first sliding plug 403 is fixedly connected to the first telescopic rod 404 , the upper end of the valve core 102 is fixedly connected to the valve stem, and the top of the valve stem is fixedly connected to the handle 104 .
[0039] See Figure 1 and Figure 6 ,
[0040] When the valve is closed, the magnet block 408 adsorbs the inclined plate 407. When the valve needs to be opened, the user manually rotates the handle 104, and the handle 104 drives the valve stem to rotate, and the valve stem drives the valve core 102 to rotate to open the valve. The handle 104 facilitates the user to manually operate to open the valve.
[0041] One end of the handle 104 is fixedly connected to the trapezoidal block 105 , and the upper end of the first telescopic rod 404 is fixedly connected to the contact block 405 .
[0042] See Figure 1 ,
[0043] After the handle 104 is rotated 90 degrees to open the valve, the trapezoidal block 105 has inclined surfaces at both ends, which can contact the first telescopic rod 404 and move the first telescopic rod 404 upward. Since the inclined piece 407 is attracted by the magnet block 408, the first spring 406 is in a stressed and stretched state. When water flows through the discharge pipe 203, the stretched first spring 406 can facilitate the water flow to impact the inclined piece 407, separating it from the magnet block 408, thereby moving the inclined piece 407 upward.
[0044] This design can ensure that the inclined piece 407 presents a corresponding position state under different water flow conditions, ensuring accurate isolation of the water source.
[0045] The mechanical displacement of the inclined plate 407 and the adsorption of the magnet block 408 form a synergistic effect to achieve two state switching: the water flow impacts the inclined plate 407 to compress the spring 406, keeping the drainage pipe 203 unobstructed; the drop in water pressure triggers the spring 406 to rebound, and the inclined plate 407 moves down to the magnet adsorption area.
[0046] This design avoids the limitations of traditional valves that rely on a single spring or solenoid valve, and improves reliability.
[0047] The trigger mechanism includes two clamping blocks 306 , which are respectively fixedly connected to the upper ends of the two rotating frames 303 . A limiting frame 208 is provided above the two clamping blocks 306 , and both the clamping blocks 306 are in contact with the inner wall of the limiting frame 208 .
[0048] See Figure 4 and Figure 8 ,
[0049] The limit frame 208 serves to limit the two blocks 306. The two rotating frames 303 tend to engage under the action of the torsion spring 302, and the limit frame 208 can ensure that the two rotating frames 303 are in an open state by limiting the two blocks 306. When the limit frame 208 moves upward and disengages from the two blocks 306, the two rotating frames 303 are no longer restricted and can automatically engage under the action of the torsion spring 302, thereby realizing the function of isolating the water source.
[0050] Through the precise constraint of the clamping block by the limit frame and the energy storage characteristics of the torsion spring, the potential energy can be released instantly when triggered, allowing the rotating frame to automatically complete the fastening action. This mechanical linkage design eliminates the manual operation link and achieves a millisecond-level response, which is particularly suitable for scenarios that require emergency water supply cuts; the limit frame forms a geometric lock through the dual clamping block constraint to ensure that the rotating frame always maintains the maximum opening in the non-triggered state. The preload force of the torsion spring and the geometric shape of the clamping block form a self-locking closed loop, which effectively prevents accidental closure caused by mis-touch or external interference, and ensures the reliability of the system; when the rotating frame is fastened, the elastic deformation of the torsion spring causes the contact surface to generate adaptive pressure, and combined with the deformation compensation of the sealing material, it can maintain dynamic sealing under different medium pressures. This non-contact sealing method avoids the wear problem of traditional valves and extends the service life.
[0051] The mechanical energy stored in the torsion spring during its release is partially converted into system kinetic energy for the reset operation. This energy recycling mechanism reduces reliance on external energy sources, enabling basic functionality to be maintained in extreme situations such as power outages, enhancing survivability in emergency scenarios.
[0052] The upper end of the discharge pipe 203 is fixedly connected to the second circular tube 204, and a second sliding plug 206 is slidably connected inside the second circular tube 204. The upper end of the second sliding plug 206 is fixedly connected to the second telescopic rod 207. A second spring 205 is provided between the upper end of the second sliding plug 206 and the inner wall of the discharge pipe 203, and a limiting frame 208 is fixedly connected to the upper end of the second telescopic rod 207.
[0053] See Figure 6 ,
[0054] When the water pressure caused by pipeline leakage gradually decreases, the magnet block 408 absorbs the inclined plate 407, and the inclined plate 407 creates resistance to the water flow, causing the water pressure in the drainage pipe 203 to gradually increase. The water pressure in the drainage pipe 203 pushes the second sliding plug 206 to slide upward, thereby driving the second telescopic rod 207 to move upward. At this time, the second spring 205 is compressed by the force, and the second telescopic rod 207 drives the limit frame 208 to move upward and disengage from the two blocks 306, so that the two rotating frames 303 are automatically engaged to achieve water source isolation.
[0055] The water pressure is used to trigger the limit frame 208 to separate from the two blocks 306, thereby realizing the function of automatically isolating the water source without the need for electric control or manual supervision.
[0056] The mechanical linkage of water pressure-driven magnet attraction and spring release completely avoids the potential risk of electronic component failure. It can still operate stably in humid, corrosive or electromagnetic interference environments.
[0057] After the limit frame 208 is disengaged, the rotating frame 303 is closed under the action of the torsion spring 302 to form a mechanical interlock. Even if the water pressure rises briefly, it will not open accidentally and must be manually reset to restore flow.
[0058] A knob is fixedly connected to the upper end of the handle 104 .
[0059] See Figure 1 ,
[0060] The knob is convenient for the user to manually operate the handle 104 to rotate.
[0061] The ends of the liquid inlet pipe 103 and the liquid outlet pipe 203 are both fixedly connected with flanges.
[0062] See Figure 1 ,
[0063] By inserting bolts into the flange, the liquid inlet pipe 103 and the liquid outlet pipe 203 can be fixed to other pipelines to achieve the installation of the valve.
[0064] The rubber tube 201 is in the shape of a straight tube in the middle and tapered tubes at both ends.
[0065] See Figure 5 ,
[0066] The rubber in the conical contact area slowly creeps under pressure, filling microscopic irregularities and improving the durability of the seal.
Claims
1. A leak-proof valve, characterized in that: It includes a shell, a valve core is rotatably connected inside the shell, one end of the shell is fixedly connected to a liquid inlet pipe, the other end of the shell is fixedly connected to a rubber tube, the other end of the rubber tube is fixedly connected to a liquid discharge pipe, the upper end of the shell is fixedly connected to a fixed rod, two rotating frames are rotatably connected to the fixed rod, the two rotating frames are symmetrical about the axis of the fixed rod, a torsion spring is fixedly connected between the two rotating frames, one of the rotating frames is fixedly connected to a ridge; the other rotating frame is provided with a groove, and a trigger mechanism is provided above the two rotating frames.
2. An anti-leakage valve according to claim 1, characterized in that: The inner wall of the rubber tube is provided with spiral protrusions.
3. An anti-leakage valve according to claim 2, characterized in that: The upper end of the discharge pipe is fixedly connected to a first circular tube, a first sliding plug is slidably connected inside the first circular tube, the lower end of the first sliding plug is fixedly connected to a first spring, the lower end of the first spring is fixedly connected to an inclined plate, the inclined plate is made of stainless steel, and a magnet block is fixedly connected to the outer wall of the discharge pipe.
4. An anti-leakage valve according to claim 3, characterized in that: The upper end of the first sliding plug is fixedly connected to the first telescopic rod, the upper end of the valve core is fixedly connected to the valve stem, and the top of the valve stem is fixedly connected to the handle.
5. An anti-leakage valve according to claim 4, characterized in that: One end of the handle is fixedly connected with a trapezoidal block, and the upper end of the first telescopic rod is fixedly connected with a contact block.
6. An anti-leakage valve according to claim 5, characterized in that: The trigger mechanism includes two clamping blocks, which are respectively fixedly connected to the upper ends of the two rotating frames. A limit frame is arranged above the two clamping blocks, and both clamping blocks are in contact with the inner wall of the limit frame.
7. An anti-leakage valve according to claim 1, characterized in that: The upper end of the discharge pipe is fixedly connected to a second round tube, a second sliding plug is slidably connected in the second round tube, the upper end of the second sliding plug is fixedly connected to a second telescopic rod, a second spring is provided between the upper end of the second sliding plug and the inner wall of the discharge pipe, and the limit frame is fixedly connected to the upper end of the second telescopic rod.
8. An anti-leakage valve according to claim 4, characterized in that: The upper end of the handle is fixedly connected with a knob.
9. An anti-leakage valve according to claim 1, characterized in that: The ends of the liquid inlet pipe and the liquid discharge pipe are both fixedly connected with flanges.
10. An anti-leakage valve according to claim 1, characterized in that: The rubber tube is straight in the middle and tapered at both ends. See Figure 5, The rubber in the conical contact area slowly creeps under pressure, filling microscopic irregularities and improving the durability of the seal.