A valve with leakage detection and alarm functions

Abstract

The present invention belongs to the field of valves, and in particular, to a valve with a leakage detection and alarm function. Aiming at the problem that existing valves may have a risk of leakage after long-term use, and when the valve is in a position where it is inconvenient for personnel to check, the leakage will be difficult to detect, and long-term leakage will cause certain dangers and losses, the following solution is now proposed. It includes a valve body, and flanges are fixedly connected to both ends of the valve body. A sealing shell is hermetically fixed to the outer wall of the valve body. A detection mechanism is provided at the bottom of the sealing shell. The detection mechanism includes a mounting shell, and the mounting shell is fixedly connected to the bottom of the sealing shell. In the present invention, through the expansion principle of the water-absorbing resin bag, the positive contact head contacts the negative contact head, thereby causing the alarm to sound, preventing accidents due to valve body leakage. At the same time, when leakage occurs at the valve body connection, it can also be detected, reducing the blind spots of valve body leakage detection, and it is also convenient to replace the water-absorbing resin bag.

Description

Technical Field

[0001] The present invention relates to the technical field of valves, and in particular to a valve with leakage detection and alarm functions. Background Art

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and adjust and control the parameters (temperature, pressure, and flow) of the conveying medium. According to their functions, they can be divided into shut-off valves, check valves, regulating valves, etc.

[0003] Valves are control components in fluid delivery systems, with functions such as shutoff, regulation, flow diversion, backflow prevention, pressure stabilization, flow diversion or overflow pressure relief. Valves used in fluid control systems come in a wide variety of varieties and specifications, from the simplest shutoff valves to the various valves used in extremely complex automatic control systems.

[0004] However, after a long period of use, there is a risk of leakage in the valve. When the valve is in a position that is inconvenient for personnel to check, the leakage will be difficult to detect. Long-term leakage will cause certain dangers and losses. For this reason, a valve with leakage detection and alarm functions is proposed. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings in the prior art that valves may leak after long-term use, and when the valve is in a position that is inconvenient for personnel to check, the leakage will be difficult to find, and long-term leakage will cause certain dangers and losses. A valve with leakage detection and alarm function is proposed.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A valve with leakage detection and alarm functions, comprising a valve body, both ends of which are fixedly connected with flanges, a sealing shell is sealed and fixed to the outer wall of the valve body, and a detection mechanism is provided at the bottom of the sealing shell;

[0008] The detection mechanism includes a mounting shell, which is fixedly connected to the bottom of the sealing shell, and guide rods are fixedly connected to the inner walls on both sides of the mounting shell, and a slide plate is slidably connected between the two guide rods, and a partition is fixedly connected to the top inner wall of the mounting shell, and a sliding rod is inserted into one side of the partition, one end of the sliding rod is fixed to the slide plate, and a spring is sleeved on the circumferential outer wall of the sliding rod, and the two ends of the spring are respectively fixed to the partition plate and the slide plate, the other end of the sliding rod is fixedly connected to the positive contact head, and a negative contact head is fixedly connected to the inner wall on one side of the mounting shell, and an alarm is fixedly connected to the inner wall on one side of the mounting shell, and an absorbent resin bag is fixedly connected to the inner wall on one side of the mounting shell.

[0009] Further, a water outlet is formed in the bottom of the sealing shell, and the water outlet is located above the installation shell. A bottom cover is hinged to the bottom of the installation shell, and a fixing mechanism for fixing the bottom cover is arranged between the bottom cover and the installation shell. A mesh plate is fixedly connected to one inner wall of the installation shell, and the mesh plate is located below the water outlet.

[0010] Further, the fixing mechanism includes a fixing seat and a clamping seat. The fixing seat is fixedly connected to one side of the bottom cover. A threaded rod is rotatably connected between the two inner walls of the fixing seat, and a clamping ring is threadedly connected to the circumference of the threaded rod. The clamping seat is fixedly connected to one outer wall of the installation shell.

[0011] Further, rubber sleeves are sleeved on the circumferential outer walls of the flanges. Through holes are formed in one sides of the flanges, and connecting pipes are fixedly communicated with one ends of the through holes. The other ends of the connecting pipes are fixedly communicated with the installation shell.

[0012] Further, sealing rings are bonded to one sides of the flanges.

[0013] Further, a plurality of nuts are fixedly connected to the sides of the flanges away from the sealing rings.

[0014] Further, a plurality of supporting feet are fixedly connected to the bottom of the sealing shell.

[0015] Further, two handles are fixedly connected to the top of the sealing shell, and a buffer sleeve is fixedly connected to the circumferential outer wall of the handle.

[0016] Further, a pressure gauge is fixedly communicated with one side of the circumference of the sealing shell.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. By arranging the sealing shell around the valve body in the present invention, when the valve body leaks, the leaked liquid can be absorbed by the water-absorbing resin bag, and due to the expansion principle of the water-absorbing resin bag, the positive contact head contacts the negative contact head, so that the alarm is triggered, preventing accidents caused by the leakage of the valve body.

[0019] 2. By the combined use of the rubber sleeve and the connecting pipe in the present invention, when leakage occurs at the connection of the valve body, the liquid can enter the sealing shell through the connecting pipe, thereby alarming people and reducing the blind spots in the detection of valve body leakage.

[0020] 3. By arranging the bottom cover at the bottom of the installation shell in the present invention, after the water-absorbing resin bag is used, the staff can open the bottom cover, which is convenient for replacing the water-absorbing resin bag and improving the convenience of product use.

[0021] In the present invention, based on the expansion principle of the water-absorbing resin bag, the positive contact head is brought into contact with the negative contact head, thereby causing the alarm to sound, preventing accidents caused by valve body leakage. At the same time, when leakage occurs at the valve body connection, it can be detected simultaneously, reducing the blind spots in valve body leakage detection, and it is also convenient to replace the water-absorbing resin bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 FIG. 6 is a three-dimensional structural schematic diagram of a first perspective of a valve with leakage detection and alarm functions proposed by the present invention;

[0023] Figure 2 FIG. 7 is a three-dimensional structural schematic diagram of a second perspective of a valve with leakage detection and alarm functions proposed by the present invention;

[0024] Figure 3 FIG. 8 is a sectional structural schematic diagram of a valve with leakage detection and alarm functions proposed by the present invention;

[0025] Figure 4 FIG. 9 is a sectional structural schematic diagram of the installation shell of a valve with leakage detection and alarm functions proposed by the present invention;

[0026] Figure 5 FIG. 10 is an enlarged structural schematic diagram of point A of a valve with leakage detection and alarm functions proposed by the present invention.

[0027] In the figure: 1, valve body; 2, sealing shell; 3, flange; 4, sealing ring; 5, rubber sleeve; 6, detection mechanism; 7, handle; 8, nut; 9, support foot; 10, through hole; 11, connecting pipe; 12, water outlet; 13, guide rod; 14, partition plate; 15, sliding rod; 16, sliding plate; 17, spring; 18, positive contact head; 19, negative contact head; 20, alarm; 21, water-absorbing resin bag; 22, installation shell; 221, bottom cover; 23, mesh plate; 24, fixing seat; 25, threaded rod; 26, card seat; 27, snap ring; 28, pressure gauge. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0029] Embodiment 1

[0030] Refer to Figures 1 - 5, a valve with leakage detection and alarm functions, comprising a valve body 1. Flanges 3 are fixedly connected to both ends of the valve body 1. A sealing shell 2 is fixedly sealed on the outer wall of the valve body 1. A detection mechanism 6 is provided at the bottom of the sealing shell 2. The detection mechanism 6 includes a mounting shell 22. The mounting shell 22 is fixedly connected to the bottom of the sealing shell 2. Guide rods 13 are fixedly connected to both inner walls on both sides of the mounting shell 22. A slide plate 16 is slidably connected between the two guide rods 13. A partition plate 14 is fixedly connected to the inner wall at the top of the mounting shell 22. A through slide rod 15 is inserted on one side of the partition plate 14. One end of the slide rod 15 is fixed to the slide plate 16. A spring 17 is sleeved on the circumferential outer wall of the slide rod 15. Both ends of the spring 17 are respectively fixed to the partition plate 14 and the slide plate 16. The other end of the slide rod 15 is fixedly connected to a positive contact head 18. A negative contact head 19 is fixedly connected to one inner wall of the mounting shell 22. An alarm 20 is fixedly connected to one inner wall of the mounting shell 22. A water-absorbing resin bag 21 is fixedly connected to one inner wall of the mounting shell 22.

[0031] Embodiment 2

[0032] Refer to Figures 1 - 5, the present invention provides a new technical solution: a valve with leakage detection and alarm functions, including a valve body 1. Both ends of the valve body 1 are fixedly connected with flanges 3. Through the flanges 3, it is convenient to connect and fix the valve body 1 to the external pipeline. Sealing rings 4 are adhesively bonded to one side of the flanges 3. The sealing rings 4 improve the sealing performance of the connection of the flanges 3. A plurality of nuts 8 are fixedly connected to the side of the flanges 3 away from the sealing rings 4. Through the nuts 8, it is convenient for people to fix the flanges 3. A sealing shell 2 is hermetically fixed to the outer wall of the valve body 1. A detection mechanism 6 is provided at the bottom of the sealing shell 2. The detection mechanism 6 includes a mounting shell 22. The mounting shell 22 is fixedly connected to the bottom of the sealing shell 2. Guide rods 13 are fixedly connected to both inner walls of the mounting shell 22. A sliding plate 16 is slidably connected between the two guide rods 13. The guide rods 13 play a role in guiding the sliding plate 16 and facilitating the movement of the sliding plate 16. A partition plate 14 is fixedly connected to the top inner wall of the mounting shell 22. A through sliding rod 15 is inserted into one side of the partition plate 14. One end of the sliding rod 15 is fixed to the sliding plate 16. A spring 17 is sleeved on the circumferential outer wall of the sliding rod 15. Both ends of the spring 17 are respectively fixed to the partition plate 14 and the sliding plate 16. The spring 17 plays a role in resetting the sliding plate 16. The other end of the sliding rod 15 is fixedly connected with a positive contact head 18. A negative contact head 19 is fixedly connected to one inner wall of the mounting shell 22. An alarm 20 is fixedly connected to one inner wall of the mounting shell 22. The alarm 20 is a prior art and can emit an alarm after being powered on. A water-absorbing resin bag 21 is fixedly connected to one inner wall of the mounting shell 22. The water-absorbing resin bag 21 is elastic and contains water-absorbing resin, which will expand after absorbing water. A plurality of support feet 9 are fixedly connected to the bottom of the sealing shell 2. The support feet 9 play a supporting role. Two handles 7 are fixedly connected to the top of the sealing shell 2. A buffer sleeve is fixedly connected to the circumferential outer wall of the handles 7. Through the handles 7, it is convenient for people to take the product. A pressure gauge 28 is fixedly communicated with one side of the circumference of the sealing shell 2. The pressure gauge 28 can observe the pressure inside the sealing shell 2.

[0033] In the present invention, a water outlet 12 is provided at the bottom of the sealing shell 2. The water outlet 12 is located above the installation shell 22. A bottom cover 221 is hinged to the bottom of the installation shell 22. Opening the bottom cover 221 facilitates the replacement of the water-absorbing resin bag 21. A fixing mechanism for fixing the bottom cover 221 is provided between the bottom cover 221 and the installation shell 22. A mesh plate 23 is fixedly connected to one inner wall of the installation shell 22. The mesh plate 23 is located below the water outlet 12. The mesh plate 23 serves to press the water-absorbing resin bag 21. The fixing mechanism includes a fixing seat 24 and a clamping seat 26. The fixing seat 24 is fixedly connected to one side of the bottom cover 221. A threaded rod 25 is rotatably connected between the two inner walls of the fixing seat 24. A clamping ring 27 is threadedly connected to the circumference of the threaded rod 25. The clamping seat 26 is fixedly connected to one outer wall of the installation shell 22. Rotate the clamping ring 27 to disengage the clamping ring 27 from contacting the clamping seat 26, and then rotate the threaded rod 25 to rotate the bottom cover 221. Rubber sleeves 5 are sleeved on the circumferential outer walls of the flanges 3. Through holes 10 are provided through one side of each flange 3. One end of each through hole 10 is fixedly communicated with a connecting pipe 11. The other ends of the connecting pipes 11 are fixedly communicated with the installation shell 22. When a leak occurs at the connection of the valve body 1, the leaked liquid is in the rubber sleeve 5 and flows into the installation shell 22 through the through holes 10 and the connecting pipes 11.

[0034] Working principle: During use, the valve body 1 is horizontally installed through the flange 3, and then the rubber sleeves 5 on the flanges 3 are sleeved on the external pipeline, so that the connections at both ends of the valve body 1 are sealed. When a leak occurs in the valve body 1, the leaked liquid enters the installation shell 22 through the water outlet 12 in the sealing shell 2. Then the water therein is absorbed by the water-absorbing resin bag 21. At the same time, the water-absorbing resin bag 21 expands and, under the blockage of the mesh plate 23, pushes the sliding plate 16 to move. The movement of the sliding plate 16 drives the positive contact head 18 to move through the sliding rod 15 and makes contact with the negative contact head 19. Subsequently, an alarm is given through the alarm 20 to remind people. And when a leak occurs at the connection of the valve body 1, the leaked liquid is in the rubber sleeve 5 and flows into the installation shell 22 through the through holes 10 and the connecting pipes 11. Similarly, the alarm 20 gives an alarm to increase the detection range. When it is necessary to replace the water-absorbing resin bag 21, rotate the clamping ring 27 to disengage the clamping ring 27 from contacting the clamping seat 26, and then rotate the threaded rod 25 to rotate the bottom cover 221.

[0035] However, as is well known to those skilled in the art, the working principle and wiring method of the alarm 20 are common knowledge and belong to conventional means or well-known common sense, so they will not be elaborated here. Those skilled in the art can make any selection according to their needs or convenience.

[0036] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, shall be covered by the protection scope of the present invention.

Claims

1. A valve with leakage detection and alarm functions, comprising a valve body (1), and flanges (3) are fixedly connected to both ends of the valve body (1). It is characterized in that a sealing shell (2) is fixedly sealed on the outer wall of the valve body (1), and a detection mechanism (6) is arranged at the bottom of the sealing shell (2); The detection mechanism (6) includes a mounting shell (22), the mounting shell (22) is fixedly connected to the bottom of the sealing shell (2), guide rods (13) are fixedly connected to both inner side walls of the mounting shell (22), a sliding plate (16) is slidably connected between the two guide rods (13), a partition plate (14) is fixedly connected to the top inner wall of the mounting shell (22), a through sliding rod (15) is inserted on one side of the partition plate (14), one end of the sliding rod (15) is fixed to the sliding plate (16), a spring (17) is sleeved on the circumferential outer wall of the sliding rod (15), and both ends of the spring (17) are fixed to the partition plate (14) and the sliding plate (16) respectively, the other end of the sliding rod (15) is fixedly connected to a positive contact head (18), a negative contact head (19) is fixedly connected to one inner side wall of the mounting shell (22), an alarm (20) is fixedly connected to one inner side wall of the mounting shell (22), and a water-absorbing resin bag (21) is fixedly connected to one inner side wall of the mounting shell (22); a water outlet (12) is opened at the bottom of the sealing shell (2), the water outlet (12) is located above the mounting shell (22), a bottom cover (221) is hinged to the bottom of the mounting shell (22), a fixing mechanism for fixing the bottom cover (221) is arranged between the bottom cover (221) and the mounting shell (22), and a mesh plate (23) is fixedly connected to one inner side wall of the mounting shell (22), and the mesh plate (23) is located below the water outlet (12); The fixing mechanism includes a fixing seat (24) and a clamping seat (26), the fixing seat (24) is fixedly connected to one side of the bottom cover (221), a threaded rod (25) is rotatably connected between both inner side walls of the fixing seat (24), a clamping ring (27) is threadedly connected to the circumference of the threaded rod (25), and the clamping seat (26) is fixedly connected to one outer side wall of the mounting shell (22).

2. A valve with leakage detection and alarm functions according to claim 1, It is characterized in that rubber sleeves (5) are sleeved on the circumferential outer walls of the flanges (3), through holes (10) are opened on one side of the flanges (3), connecting pipes (11) are fixedly communicated with one ends of the through holes (10), and the other ends of the connecting pipes (11) are fixedly communicated with the mounting shell (22).

3. A valve with leakage detection and alarm functions according to claim 1, It is characterized in that sealing rings (4) are bonded to one side of the flanges (3).

4. A valve with leakage detection and alarm functions according to claim 3, It is characterized in that a plurality of nuts (8) are fixedly connected to one side of the flanges (3) away from the sealing rings (4).

5. A valve with leakage detection and alarm functions according to claim 1, It is characterized in that A plurality of support feet (9) are fixedly connected to the bottom of the sealing shell (2).

6. A valve with a leakage detection and alarm function according to claim 1, characterized in that two handles (7) are fixedly connected to the top of the sealing shell (2), and a buffer sleeve is fixedly connected to the circumferential outer wall of the handle (7).

7. A valve with a leakage detection and alarm function according to claim 1, characterized in that a pressure gauge (28) is fixedly communicated with one side of the circumference of the sealing shell (2).

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