Water leakage self-closing valve

Abstract

The utility model relates to the technical field of self-closing valves, in particular to a water leakage self-closing valve which comprises a valve body, a valve element is arranged in the valve body, a rotating rod is rotationally connected to the valve body, the rotating rod is connected with the valve element, a piston cylinder with a vent hole formed in the top is inlaid in the outer surface of the valve body, and a piston plate is arranged in the piston cylinder; the inner wall of the piston cylinder is rotationally connected with a rotating shaft, and the outer surface of the rotating shaft is fixedly connected with two driving gears. Through cooperation of a piston cylinder, a piston plate, a toothed plate, a driving gear, a rotating shaft, a worm gear, a worm, a first gear and a second gear, air pressure in a valve body can be sensed through the piston plate, once water leaks, the interior of the valve body can be reduced, the piston plate can drive the toothed plate to descend, and the driving gear can drive the worm gear to rotate through the rotating shaft; the worm can drive the first gear to rotate, the second gear can drive the valve element to rotate to close the valve body, and therefore it is guaranteed that the valve body can be automatically closed when water leaks.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of self-closing valves, in particular to a water leakage self-closing valve. BACKGROUND

[0002] The water leakage self-closing valve is a device capable of automatically closing water flow when water leakage occurs in a water pipe, and is widely applied to household and industrial fields for preventing water leakage caused by water pipe rupture, loose connection or other reasons. The device is usually combined with a sensor or a pressure monitoring device and can quickly close water flow when detecting water leakage, so as to prevent water loss and possible property damage.

[0003] Most existing water valves rely on electronic components or complex control systems to realize the self-closing function, which not only significantly increases the manufacturing cost and the complexity of subsequent maintenance, but also may cause accidental failure of the self-closing function due to environmental factors, natural aging or accidental damage under long-term use, thereby causing water resource waste, property loss and even safety hazards in living or working environment. Therefore, the application provides a water leakage self-closing valve. CONTENT OF THE INVENTION

[0004] In order to solve the problems mentioned in the background, the application provides a water leakage self-closing valve.

[0005] The water leakage self-closing valve provided by the application adopts the following technical scheme: a water leakage self-closing valve, comprising a valve body, a valve core arranged in the valve body, a rotating rod rotatably connected to the valve body and connected between the valve core and the valve body, a piston cylinder with a top air hole embedded on the outer surface of the valve body, a piston plate arranged in the piston cylinder, a rotating shaft rotatably connected to the inner wall of the piston cylinder, two drive gears fixedly connected to the outer surface of the rotating shaft, a tooth plate meshed with each drive gear, the bottom end of each tooth plate connected to the upper surface of the piston plate, a worm gear fixedly connected to the outer surface of the rotating shaft, a worm meshed with the outer part of the worm gear, a first gear fixedly connected to the top end of the worm and penetrating through the piston cylinder, a second gear meshed with the outer part of the first gear, and the inner ring of the second gear connected to the outer surface of the rotating rod.

[0006] Optionally, the top end of the rotating rod is fixedly connected with a rotating handle in the shape of a wrench.

[0007] Optionally, the outer surface of the valve body is fixedly connected with a protective cover, and the protective cover is rotatably connected with the rotating rod.

[0008] Optionally, the outer surface of the rotating rod is rotatably connected with a reinforcing plate, and one end of the reinforcing plate is connected with the inner wall of the protective cover.

[0009] Optionally, the inner wall of the piston cylinder is fixedly connected with two blocking rings, and the two blocking rings are located above the piston plate and below the piston plate respectively.

[0010] Optionally, the outer surface of the valve body is fixedly connected with a mounting seat, and the mounting seat is provided with symmetrically arranged mounting holes.

[0011] Optionally, each group of the driving gears and each group of the toothed plates are symmetrically arranged, and the length of each toothed plate is greater than the distance between the two blocking rings.

[0012] In summary, the present application has the following beneficial technical effects:

[0013] 1. The utility model discloses a piston cylinder, piston plate, toothed plate, driving gear, pivot, worm wheel, worm, first gear and second gear are cooperated, utilize piston plate and can carry out inductive to the air pressure of valve body, once the water leakage valve body will reduce, and piston plate will drive toothed plate to descend, and driving gear will drive worm wheel to rotate through pivot, and worm will drive first gear to rotate, and second gear will drive valve core to rotate and close valve body, thereby ensuring that the valve body will be automatically closed when leaking.

[0014] 2. The utility model discloses a blocking ring, can limit the movement of piston plate, to avoid piston plate ascending or descending too long distance, through the setting protection cover, can protect first gear and second gear, to avoid first gear and second gear contact water and rust, thereby guaranteeing that the air pressure is small and normally drives valve core to rotate and closes valve body. DRAWINGS

[0015] Figure 1 It is the whole three-dimensional structure schematic diagram in the embodiment of the application;

[0016] Figure 2 It is the three-dimensional structure schematic diagram of valve body front view in the embodiment of the application;

[0017] Figure 3 It is the three-dimensional structure schematic diagram of piston cylinder front view in the embodiment of the application;

[0018] Figure 4 It is the structure enlarged schematic diagram of A in the embodiment of the application. Figure 3

[0019] Reference signs: 1, valve body; 2, protection cover; 3, rotating handle; 4, rotating rod; 5, mounting seat; 6, valve core; 7, piston cylinder; 8, reinforcing plate; 9, second gear; 10, first gear; 11, toothed plate; 12, worm; 13, driving gear; 14, piston plate; 15, blocking ring; 16, pivot; 17, worm wheel. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings​Figures 1-4 The application is further described in detail.

[0021] The application discloses a water leakage self-closing valve. Figure 1 As shown in the figure, a water leakage self-closing valve comprises a valve body 1, the inside of the valve body 1 is provided with a valve core 6, the valve body 1 is rotationally connected with a rotating rod 4, and the rotating rod 4 is connected with the valve core 6, the rotating rod 4 is rotated to realize the closing of the valve core 6, and the opening and closing operation of the valve body 1 by the staff is facilitated.

[0022] Please refer to Figure 2 , the top end of the rotating rod 4 is fixedly connected with a rotating handle 3, the rotating handle 3 is in the shape of a spanner, the rotating handle 3 is arranged to facilitate the rotation of the rotating rod 4 by the staff, and the opening and closing of the valve core 6 is more convenient.

[0023] Please refer to Figure 1 , the outer surface of the valve body 1 is fixedly connected with a mounting seat 5, the mounting seat 5 is provided with symmetrically arranged mounting holes, and the mounting seat 5 is arranged to facilitate the mounting of the valve body 1 by the staff.

[0024] Please refer to Figure 3 , the outer surface of the valve body 1 is inlaid with a piston cylinder 7 provided with a vent hole at the top, the inside of the piston cylinder 7 is provided with a piston plate 14, the piston cylinder 7 and the piston plate 14 are matched to sense the change of the air pressure in the valve body 1, when water leakage occurs, the air pressure in the valve body 1 becomes smaller, and the piston plate 14 will descend in the piston cylinder 7.

[0025] Please refer to Figure 4 , the inner wall of the piston cylinder 7 is fixedly connected with two stop rings 15, the two stop rings 15 are located above and below the piston plate 14 respectively, the stop rings 15 are arranged to limit the lifting position of the piston plate 14, so as to prevent the piston plate 14 from rising or descending too long distance, to prevent the piston plate 14 from being separated from the piston cylinder 7, and to avoid the collision between the tooth plate 11 and the piston cylinder 7 when the tooth plate 11 rises too high.

[0026] Please refer to Figure 4 , the inner wall of the piston cylinder 7 is rotationally connected with a rotating shaft 16, the outer surface of the rotating shaft 16 is fixedly connected with two driving gears 13, the outer part of each driving gear 13 is engaged with a tooth plate 11, the bottom end of each tooth plate 11 is connected with the upper surface of the piston plate 14, the outer surface of the rotating shaft 16 is fixedly connected with a worm gear 17, the descending movement of the piston plate 14 will directly cause the synchronous descent of the tooth plate 11 connected with the piston plate 14, with the descent of the tooth plate 11, the gear rack arranged on the tooth plate 11 is engaged with the gear teeth of the driving gear 13, so as to drive the driving gear 13 to rotate, the rotating action is effectively transmitted to the worm gear 17 through the fixed rotating shaft 16, so that the worm gear 17 also starts to rotate around its axis.

[0027] Please refer to Figure 4Each set of driving gear 13 and each set of toothed plate 11 are symmetrically arranged, the length of each toothed plate 11 is greater than the interval between two blocking rings 15, which can prevent the separation between toothed plate 11 and driving gear 13.

[0028] Please refer to Figure 4 The outer part of worm gear 17 is engaged with worm 12, the top end of worm 12 penetrates piston cylinder 7 and is fixedly connected with first gear 10, the outer part of first gear 10 is engaged with second gear 9, the inner ring of second gear 9 is connected with the outer surface of rotating rod 4, in the process of rotating, worm gear 17 will drive worm 12 to rotate along the axis perpendicular to the rotating direction of worm gear 17, this rotating action will drive first gear 10 to start rotating, the close engagement relationship between first gear 10 and second gear 9 ensures that the rotation of first gear 10 can drive second gear 9 to rotate in the opposite direction, with the rotation of second gear 9, the rotating rod 4 connected with it will also rotate accordingly, finally drive the spool 6 to produce deflection movement, realize the close closing of the inside of valve body 1, ensure that when the water leakage is detected, the valve body 1 can be quickly and automatically closed, effectively prevent the further loss of water resources.

[0029] Please refer to Figure 3 The outer surface of valve body 1 is fixedly connected with protective cover 2, protective cover 2 is rotatably connected with rotating rod 4, the protective cover 2 arranged can protect first gear 10 and second gear 9 from rusting by contacting water, so as to ensure that first gear 10 normally drives second gear 9 to rotate.

[0030] Please refer to Figure 3 The outer surface of rotating rod 4 is rotatably connected with reinforcing plate 8, one end of reinforcing plate 8 is connected with the inner wall of protective cover 2, reinforcing plate 8 can further reinforce and stabilize rotating rod 4, and the stability of rotating rod 4 when rotating is enhanced.

[0031] The implementation principle of the water leakage self-closing valve according to the embodiment of the application is as follows: when water flows through the valve body 1, the pressure inside the valve body 1 is maintained at a relatively stable state, which enables the piston plate 14 to maintain a stable position inside the piston cylinder 7. Once the pipeline connected with the valve body 1 leaks, the pressure inside the valve body 1 decreases, which causes the piston plate 14 to be out of balance and gradually move downward. In the process of moving downward, the tooth plate 11 connected with the piston plate 14 also moves and drives the driving gear 13 to rotate. The rotation of the driving gear 13 further drives the rotation of the worm wheel 17 through the rotating shaft 16. The interaction between the worm wheel 17 and the worm 12 causes the worm 12 to also rotate. At the same time, the rotation of the worm 12 also drives the rotation of the second gear 9 and the rotating rod 4 connected with the second gear 9 through the meshing relationship between the first gear 10 and the second gear 9. Finally, the rotation of the rotating rod 4 causes the valve core 6 to deflect, thereby effectively sealing the inside of the valve body 1 and ensuring that the valve body 1 can be automatically closed when the pipeline leaks, effectively preventing further loss of water resources.

[0032] The above are preferred embodiments of the application, and do not limit the protection scope of the application. Therefore, equivalent changes made on the basis of the structure, shape, and principle of the application should be covered within the protection scope of the application.

Claims

1. A water leakage self-closing valve comprising a valve body (1), characterized in that: The inside of the valve body (1) is provided with a valve core (6), the valve body (1) is rotatably connected with a rotating rod (4), and the rotating rod (4) is connected with the valve core (6), the outer surface of the valve body (1) is inlaid with a piston cylinder (7) provided with a vent hole at the top, the inside of the piston cylinder (7) is provided with a piston plate (14), the inner wall of the piston cylinder (7) is rotatably connected with a rotating shaft (16), the outer surface of the rotating shaft (16) is fixedly connected with two drive gears (13), the outer part of each drive gear (13) is engaged with a toothed plate (11), the bottom end of each toothed plate (11) is connected with the upper surface of the piston plate (14), the outer surface of the rotating shaft (16) is fixedly connected with a worm wheel (17), the outer part of the worm wheel (17) is engaged with a worm (12), the top end of the worm (12) penetrates the piston cylinder (7) and is fixedly connected with a first gear (10), the outer part of the first gear (10) is engaged with a second gear (9), the inner ring of the second gear (9) is connected with the outer surface of the rotating rod (4).

2. The self-closing leak valve according to claim 1, wherein: The top end of the rotating rod (4) is fixedly connected with a rotating handle (3), and the rotating handle (3) is in the shape of a spanner.

3. The self-closing leak valve according to claim 1, wherein: The outer surface of the valve body (1) is fixedly connected with a protective cover (2), and the protective cover (2) is rotatably connected with the rotating rod (4).

4. The self-closing leak valve according to claim 1, wherein: The outer surface of the rotating rod (4) is rotatably connected with a reinforcing plate (8), one end of the reinforcing plate (8) is connected with the inner wall of the protective cover (2).

5. The self-closing leak valve according to claim 1, wherein: The inner wall of the piston cylinder (7) is fixedly connected with two retaining rings (15), and the two retaining rings (15) are located above and below the piston plate (14) respectively.

6. The self-closing leak valve according to claim 1, wherein: The outer surface of the valve body (1) is fixedly connected with a mounting seat (5), and the mounting seat (5) is provided with symmetrically arranged mounting holes.

7. The self-closing leak valve according to claim 1, wherein: Each group of drive gears (13) and each group of toothed plates (11) are symmetrically arranged, and the length of each toothed plate (11) is greater than the distance between the two retaining rings (15).

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