A leak-proof gas switching valve

Abstract

This utility model belongs to the technical field of leak-proof gas valves and discloses a leak-proof gas switching valve. It includes a concave sealing box fixedly mounted on the outer side of the upper end face of the valve body; a strong magnetic attraction device fixedly mounted on the lower end face of the concave sealing box; a second strong magnetic attraction device fixedly mounted on the lower end face of the first strong magnetic attraction device; and a second concave sealing box fixedly mounted on the lower end face of the second strong magnetic attraction device. Sealing bags are attached to both the left and right sides of the lower end of the concave sealing box. Through the concave sealing box, the strong magnetic attraction device, and the sealing bags, the valve stem can be effectively isolated from external hazardous media, preventing the transmission of electric arcs, sparks, and hot particles. It exhibits excellent protective performance in complex and harsh environments. The sealing bags can wrap the gas inlet and outlet, initially blocking gas leakage. Furthermore, the sealing bags allow for timely detection of leaks when gas leakage occurs.

Description

Technical Field

[0001] This utility model belongs to the technical field of leak-proof gas valves, specifically a leak-proof gas switching valve. Background Technology

[0002] A gas shut-off valve is a safety device installed at the end of an indoor low-pressure gas pipeline and connected to an indoor gas stove. It can sense gas pressure, automatically shut off, and requires manual reset. It has functions to shut off in case of pressure loss, overpressure, or gas leakage. When the gas pressure in the pipeline is lower or higher than the set pressure, or when the gas stove hose comes loose, it can automatically shut off the valve in time to prevent accidents.

[0003] Meanwhile, a leak-proof gas switch valve with announcement number CN221647738U is disclosed, including a valve body. A control block is fixedly installed on the upper end of the valve body. An alarm mechanism for notifying the user of valve abnormalities is provided on one side of the valve body surface. The alarm mechanism includes an extension plate, a column, a crossbar, a bracket, a transmission rod, a push switch, a first pressing rod, a second pressing rod, and an alarm. An extension plate is fixedly installed on one side of the valve body surface. A column is fixedly installed on one side of the upper end of the extension plate. A crossbar is movably installed on the upper end of the column via a rotating shaft. A bracket is fixedly installed on one side of the upper end of the crossbar.

[0004] The aforementioned leak-proof gas switch valve is prone to false alarms due to contamination from oil fumes and dust during use. Furthermore, sensor drift can cause it to fail to report or miss alarms, and the fault indication function may be missing, resulting in the inability to broadcast warnings in the event of a gas leak during use.

[0005] Therefore, a leak-proof gas switching valve is proposed to address the above problems. Utility Model Content

[0006] To address the problems mentioned in the background art, this utility model provides a leak-proof gas switch valve, which effectively isolates the valve stem from external hazardous media, prevents the transmission of electric arcs, sparks, and hot particles, and has excellent protective performance in complex and harsh environments; the sealing bag can wrap the gas inlet and outlet, initially blocking gas leakage, and the sealing bag can also be used to promptly detect the location of the leak when gas leakage occurs.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a leak-proof gas switch valve, comprising a concave sealing box fixedly disposed on the outer side of the upper end face of the switch valve body, a strong magnetic attraction device fixedly disposed on the lower end face of the concave sealing box, a strong magnetic attraction device two fixedly disposed on the lower end face of the strong magnetic attraction device, a concave sealing box two fixedly disposed on the lower end face of the strong magnetic attraction device, and sealing column bags attached to both the left and right sides of the lower end of the concave sealing box, with the lower side of the sealing column bags attached to the concave sealing box two.

[0008] Preferably, a switch sealing cover is fixedly provided on the upper end face of the switch valve body, and the switch sealing cover is fitted to the upper side of the concave sealing box. A rubber fixing sleeve is fixedly provided on the outer side of the front end face of the sealing column bag. Tubes are fixedly provided on both the left and right sides of the switch valve body, and the outer side of the rubber fixing sleeve is fixed to the tube.

[0009] By adopting the above technical solution, the gas leaks from the upper gap by fitting the switch sealing cover with the upper side of the concave sealing box. The rubber fixing sleeve on the outer side of the front end of the sealing column bag is fixed to the pipe, so that the sealing column bag is stably supported, and at the same time the sealing performance of the connection between the pipe and the switch valve body is enhanced.

[0010] Preferably, a column groove is provided in the middle of the upper end face of the concave sealing box, and the column groove is inserted into the upper side of the switch valve body. A buckle groove is provided in the middle of both the left and right ends of the concave sealing box.

[0011] By adopting the above technical solution, the groove in the middle of the upper end face of the concave sealing box allows the upper side of the switch valve body to pass through, which serves to position and fix the concave sealing box. The snap grooves opened on both sides of the left and right ends of the concave sealing box provide connection points for subsequent connection with other components, which facilitates the assembly and fixation between components and enhances the stability of the structure.

[0012] Preferably, a support plate is fixedly provided on the upper middle of the rubber fixing sleeve, and the support plate is in contact with the concave sealing box one. Fastening posts are fixed on both the front and rear sides of the inner side of the support plate, and the fastening posts are fixed inside the fastening groove. Semicircular grooves are opened on the left and right ends of the inner side of the concave sealing box one and the concave sealing box two, and the switch valve body is fixed inside the semicircular groove.

[0013] By adopting the above technical solution, the support plate on the upper side of the rubber fixing sleeve is attached to the concave sealing box one, and the buckle on the inner side of the support plate is fixed inside the buckle groove, so that the concave sealing box one, the rubber fixing sleeve and the pipe form a stable connection structure, preventing the concave sealing box one from shifting during use. The semi-circular groove on the inner side of the concave sealing box one and the concave sealing box two fixes the switch valve body, further enhancing the fixing effect on the switch valve body and improving the stability and sealing of the entire structure.

[0014] Preferably, a fixing plate is fixedly provided on the lower middle side of the front end face of the concave sealing box, and a gas detector is fixedly provided on the upper end face of the fixing plate.

[0015] By adopting the above technical solution, a gas detector is fixed on the fixing plate on the lower middle side of the front end face of the concave sealing box, which can conveniently detect the gas around the switch valve in real time.

[0016] Preferably, a display screen is fixedly provided in the middle of the gas detector, a gas alarm light is fixedly provided in the middle of the front side of the upper end of the gas detector, and a detection device is fixedly provided in the middle of the rear end of the gas detector, with the detection device inserted into a concave sealing box.

[0017] By adopting the above technical solution, the detection data such as gas concentration can be displayed intuitively on the screen in the middle of the gas detector, making it convenient for operators to understand the gas status. When the gas concentration exceeds the safety threshold, the gas alarm light will issue a warning signal to remind the staff to deal with it in time. The detection device is inserted into the concave sealing box, which can more accurately detect the gas situation inside and around the switch valve, ensuring the effectiveness and reliability of the detection and further ensuring the safety of gas use.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model uses a concave sealing box, a strong magnetic attraction device, and a sealing cylindrical bag to effectively isolate the valve stem from external hazardous media, preventing the transmission of electric arcs, sparks, and hot particles, and providing excellent protection in complex and harsh environments; the sealing bag can wrap the gas inlet and outlet, initially blocking gas leakage, and the sealing bag can also be used to promptly detect the location of the leak when gas leakage occurs.

[0019] 2. This utility model uses a gas detector and a gas alarm light to monitor the gas concentration in real time. When the concentration exceeds the standard, the alarm light will flash a strong red light and sound to alert the user of the gas leak, allowing for timely repairs and ensuring personal safety. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the installation structure of the concave sealing box of this utility model; Figure 3 This is a schematic diagram of the installation structure of the sealing column bag of this utility model; Figure 4 This is a schematic diagram of the installation structure of the gas detector of this utility model.

[0021] In the diagram: 1. Switch valve body; 2. Switch sealing cover; 3. Pipe; 4. Fixing plate; 5. Concave sealing box one; 6. Column groove; 7. Semicircular groove; 8. Clip groove; 9. Strong magnetic attraction device one; 10. Strong magnetic attraction device two; 11. Rubber fixing sleeve; 12. Sealing column bag; 13. Support plate; 14. Clip column; 15. Gas alarm light; 16. Display screen; 17. Detection device; 18. Gas detector; 19. Concave sealing box two. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] The following describes an embodiment of this utility model based on its overall structure.

[0024] like Figures 1 to 4 As shown, this utility model provides a leak-proof gas switch valve, including a concave sealing box 5 fixedly provided on the outer side of the upper end face of the switch valve body 1 for sealing, a strong magnetic attraction device 9 fixedly provided on the lower end face of the concave sealing box 5 for magnetic attraction sealing, a strong magnetic attraction device 10 fixedly provided on the lower end face of the strong magnetic attraction device 19, a concave sealing box 19 fixedly provided on the lower end face of the strong magnetic attraction device 10, and a sealing column bag 12 attached to both the left and right sides of the lower end of the concave sealing box 5 for sealing, and the lower side of the sealing column bag 12 is attached to the concave sealing box 19.

[0025] A switch sealing cover 2 is fixedly provided on the upper end face of the switch valve body 1 to perform a sealing function, and the switch sealing cover 2 is attached to the upper side of the concave sealing box 5. A rubber fixing sleeve 11 is fixedly provided on the outer side of the front end face of the sealing column bag 12. A pipe 3 is fixedly provided on both the left and right sides of the switch valve body 1, and the outer side of the rubber fixing sleeve 11 is fixed to the pipe 3.

[0026] A column groove 6 is provided in the middle of the upper end face of the concave sealing box 5, and the column groove 6 is inserted through the upper side of the switch valve body 1. The middle of both the left and right ends of the concave sealing box 5 are provided with buckle grooves 8 to fix the inside of the groove.

[0027] A support plate 13 is fixedly provided on the upper middle side of the rubber fixing sleeve 11 to fix the whole. The support plate 13 is in contact with the concave sealing box 5. The front and rear sides of the inner side of the support plate 13 are fixed with buckle posts 14, and the buckle posts 14 are fixed inside the buckle groove 8. The left and right ends of the inner side of the concave sealing box 5 and the concave sealing box 2 19 are both provided with semi-circular grooves 7, and the switch valve body 1 is fixed inside the semi-circular grooves 7.

[0028] A fixing plate 4 is fixedly installed on the lower middle side of the front end face of the concave sealing box 5 for fixing, and a gas detector 18 is fixedly installed on the upper end face of the fixing plate 4 for gas detection.

[0029] A display screen 16 is fixedly installed in the middle of the gas detector 18 to display the gas level. A gas alarm light 15 is fixedly installed in the middle of the front side of the upper end of the gas detector 18 to provide a flashing warning of gas leakage. A detection device 17 is fixedly installed in the middle of the rear end of the gas detector 18, and the detection device 17 is inserted into the concave sealing box 5 to provide a sealing function.

[0030] The working principle and process of a leak-proof gas switching valve: To prevent gas valve leaks from going undetected and causing health risks, a magnetic sealing design is implemented. Strong magnetic attraction devices 19 and 20 on the lower end face of the concave sealing box 15 attract each other, ensuring a tight seal between them. This strong magnetic attraction guarantees a tight connection, effectively preventing gas leakage at the joint. Sealing pockets 12 on the left and right sides of the lower end of the concave sealing box 15 fit against the upper and lower sides of the concave sealing box 15 and concave sealing box 29 respectively. These sealing pockets 12 further fill any gaps between them, enhancing the sealing effect and reducing the risk of gas leakage. The rubber fixing sleeve 11 on the outer side of the front end of the sealing pocket 12... The pipe 3 is fixed, and the upper middle support plate 13 is attached to the concave sealing box 5. The buckle 14 on the inner side of the support plate 13 is fixed in the buckle groove 8 of the concave sealing box 5. This structure not only fixes the sealing column bag 12, but also further strengthens the entire sealing structure to prevent the sealing components from shifting and causing sealing failure. Then, the fixing plate 4 is fixed to the lower middle of the front end face of the concave sealing box 5. The gas detector 18 on the fixing plate 4 plays a key role in gas detection. The detection device 17 is inserted into the concave sealing box 5 and can detect the gas concentration around the switch valve body 1 in real time. When the gas concentration exceeds the safety threshold, the gas alarm light 15 will light up, and the display screen 16 will display the relevant gas concentration data to remind the user that there may be a gas leak.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A leak-proof gas switching valve, comprising a valve body (1), characterized in that: A concave sealing box 1 (5) is fixedly provided on the outer side of the upper end face of the switch valve body (1). A strong magnetic attraction device 1 (9) is fixedly provided on the lower end face of the concave sealing box 1 (5). A strong magnetic attraction device 2 (10) is fixedly provided on the lower end face of the strong magnetic attraction device 1 (9). A concave sealing box 2 (19) is fixedly provided on the lower end face of the strong magnetic attraction device 2 (10). Sealing column bags (12) are attached to both the left and right sides of the lower end of the concave sealing box 1 (5), and the lower side of the sealing column bags (12) is attached to the concave sealing box 2 (19). The upper end face of the switch valve body (1) is fixedly provided with a switch sealing cover (2), and the switch sealing cover (2) is attached to the upper side of the concave sealing box (5). The outer side of the front end face of the sealing column bag (12) is fixedly provided with a rubber fixing sleeve (11). The left and right sides of the switch valve body (1) are both fixedly provided with tubes (3), and the outer side of the rubber fixing sleeve (11) is fixed to the tube (3). The upper end face of the concave sealing box (5) is provided with a column groove (6), and the upper side of the switch valve body (1) is inserted into the column groove (6). The middle sides of the left and right ends of the concave sealing box (5) are provided with buckle grooves (8).

2. The leak-proof gas switching valve according to claim 1, characterized in that: A support plate (13) is fixedly provided on the upper middle side of the rubber fixing sleeve (11), and the support plate (13) is in contact with the concave sealing box one (5). The front and rear sides of the inner side of the support plate (13) are fixedly provided with buckle posts (14), and the buckle posts (14) are fixed inside the buckle groove (8). The left and right ends of the inner side of the concave sealing box one (5) and the concave sealing box two (19) are provided with semi-circular grooves (7), and the switch valve body (1) is fixed inside the semi-circular groove (7).

3. The leak-proof gas switching valve according to claim 1, characterized in that: A fixing plate (4) is fixedly provided on the lower middle side of the front end face of the concave sealing box (5), and a gas detector (18) is fixedly provided on the upper end face of the fixing plate (4).

4. A leak-proof gas switching valve according to claim 3, characterized in that: The gas detector (18) has a display screen (16) fixed in the middle, a gas alarm light (15) fixed in the middle of the front side of the upper end of the gas detector (18), and a detection device (17) fixed in the middle of the rear end of the gas detector (18), and the detection device (17) is inserted into the concave sealing box (5).

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