A water valve with airtightness detection function

Abstract

The present invention discloses a water valve with a sealing detection function, which relates to the technical field of water valves, comprising a valve body, a valve box fixedly connected to the middle position of the valve body, a box cover fixedly connected to the upper position of the valve box, a valve stem movably installed in the box cover, a valve head movably installed at the lower position of the valve stem, a sealing assembly movably installed on the valve head, a No. 1 sealing gasket performs preliminary sealing on a connecting pipe, and a No. 2 sealing gasket performs secondary sealing in the valve box, so that the valve head has a better blocking effect on the liquid, and through the set fixing assembly, during the process of the valve stem moving upward, the pressure block squeezes the plug block, so that the plug block moves sideways in the limiting sleeve, thereby fixing the No. 2 sealing gasket, so that the No. 2 sealing gasket is not easy to fall off, and during the process of the valve stem moving upward, the scraper removes dirt on the inner wall, so that the thickness of the inner wall is uniform, and a gap between the No. 2 sealing gasket and the inner wall is avoided, thereby reducing the sealing effect, and the set sealing detection assembly is convenient for detecting water leakage.

Description

Technical Field

[0001] The invention relates to the technical field of water valves, in particular to a water valve with a sealing detection function. Background Art

[0002] The water valve is a control component in the fluid delivery system, and has functions such as cut-off, regulation, and diversion. In the prior art, the Chinese utility model patent with the public document number: CN220600454U discloses a sealing structure of a water valve. The utility model realizes the first layer of sealing of the water valve core through the cooperation of the conical body and the conical hole, and realizes the second layer of sealing of the water valve core through the contact between the rubber ring and the partition, thereby making the water valve have good sealing performance when in use, and making it difficult for the water valve to leak;

[0003] However, in actual use, when water leakage occurs between the installation pipe and the fixed body of the water valve, it is difficult to observe and thus the leakage is easily overlooked, making it difficult to repair the leakage in time. In addition, after long-term use, dirt is easily adhered to the inner wall of the valve body. If the dirt is not removed in time, the thickness of the inner wall is easily increased, resulting in uneven thickness of the inner wall. When the sealing ring contacts the inner wall, gaps are easily formed, resulting in reduced sealing effect. Therefore, improvement is needed. Summary of the invention

[0004] The object of the present invention is to provide a water valve with a sealing detection function to solve the problems raised in the prior art.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A water valve with a closed detection function comprises a valve body, a valve box is fixedly connected to the middle position of the valve body, a box cover is fixedly connected to the upper position of the valve box, a valve stem is movably installed in the box cover, a valve head is movably installed at the lower position of the valve stem, a sealing assembly is movably installed on the valve head, the sealing assembly comprises a No. 1 sealing gasket and a No. 2 sealing gasket, the No. 1 sealing gasket is fixedly connected to the two side positions of the valve head, the No. 2 sealing gasket is fixedly connected to the upper position of the valve head, a fixing assembly is movably installed on the valve head at the upper position of the No. 2 sealing gasket, the fixing assembly comprises a fixing plate and an insert block, and ... The fixed plate is fixedly connected to the upper position of the No. 2 sealing gasket, the insert block is movably installed on the fixed plate, a scraper assembly is movably installed on the valve head at a position below the No. 2 sealing gasket, the scraper assembly includes a scraper and a threaded pipe sleeve, the threaded pipe sleeve is movably installed on the side position of the valve head, the scraper is movably installed on the side position of the threaded pipe sleeve, and a sealing detection assembly is movably installed on the upper position of the valve box. Preferably, connecting pipes are fixedly connected to the two sides of the valve body, the outer end of the connecting pipe is fixedly connected to a flange, the valve stem is movably installed with the box cover through a bearing, and the upper end of the valve stem is fixedly connected to a handle.

[0007] Preferably, connecting pipes are fixedly connected to both sides of the valve body, flanges are fixedly connected to the outer ends of the connecting pipes, the valve stem is movably mounted on the box cover via a bearing, and a handle is fixedly connected to the upper end of the valve stem.

[0008] Preferably, the sealing assembly further includes a connecting screw, a No. 1 connecting plate, a No. 1 fastening bolt, a No. 1 mounting groove, a No. 2 screw, a pressure plate and a bolt head, the pressure plate is fixedly connected in the No. 1 sealing gasket, the connecting screw is fixedly connected to the two sides of the valve head, the No. 1 connecting plate is fixedly connected to the outer end of the connecting screw, the No. 1 fastening bolt is movably installed on the connecting screw, the No. 1 mounting groove is opened on the No. 1 sealing gasket, the pressure plate is located in the No. 1 mounting groove, one side of the pressure plate is fixedly connected to the No. 2 screw, and the other side of the pressure plate is fixedly connected to the bolt head, and the No. 2 screw is movably installed in the connecting screw.

[0009] Preferably, the fixing assembly further includes a sliding rod, a sliding sleeve, a No. 1 inclined surface, a No. 2 inclined surface and a connecting groove, the sliding rod is fixedly connected to the fixing plate, the sliding sleeve is fixedly connected to both sides of the plug block, the No. 1 inclined surface is opened on one side of the plug block, and the No. 2 inclined surface is opened on the other side of the plug block, the connecting groove is opened on the No. 2 sealing gasket and the fixing plate, the limiting sleeve is movably installed in the connecting groove of the No. 2 sealing gasket and the fixing plate, and the plug block is movably installed in the limiting sleeve.

[0010] Preferably, the fixing assembly further includes a No. 3 inclined surface, a pressure block and a limiting sleeve, the No. 3 inclined surface is opened on the pressure block, the pressure block is movably installed with the No. 2 inclined surface of the insert block through the No. 3 inclined surface, the pressure block is fixedly connected to the inner side of the box cover, and the limiting sleeve is fixedly connected to the valve head.

[0011] Preferably, the scraping assembly further comprises a thread groove, the thread groove is arranged on the valve head, threads are engraved on the outer side of the threaded sleeve, and the threaded sleeve is movably installed in the thread groove by means of threads.

[0012] Preferably, the scraping assembly also includes a movable rod, a movable head and a spring, one end of the movable rod is fixedly connected to the scraper, and the other end of the movable rod is fixedly connected to the movable head, the movable head is movably installed in the threaded sleeve, and the spring is movably installed in the threaded sleeve and is located at the side of the movable head.

[0013] Preferably, the sealing detection assembly includes a collecting groove, an outer plate, an inner plate and a circulation groove, the collecting groove is fixedly connected at the upper position of the valve box, the outer plate and the inner plate are fixedly connected in the collecting groove, and the inner plate is located on the inner side of the outer plate, and the circulation groove is opened on the inner plate.

[0014] Preferably, the sealing detection assembly also includes a connecting screw, a fixing nut and an upper sealing gasket, the connecting screw is fixedly connected to the upper position of the valve box, and the connecting screw is located on the inner side of the inner plate, the upper sealing gasket is located between the valve box and the box cover, the connecting screw passes through the upper sealing gasket and the shell of the box cover, and the fixing nut is movably mounted on the connecting screw and is located above the shell of the box cover.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. Through the sealing assembly, the valve head is located in the middle of the valve body, the No. 1 sealing gasket is located on both sides of the valve body to seal the connecting pipe, and the No. 2 sealing gasket is movably installed in the valve box and the box cover to perform a second seal, so that the valve head has a better blocking effect on the liquid;

[0017] 2. By setting a fixing component, the fixing component is located above the fixing plate, and the plug block moves sideways so that the plug block is inserted into the limiting sleeve, limiting the fixing plate on the valve head, so that the No. 2 sealing gasket is kept fixed. When the valve stem is turned, the valve head moves upward, and the plug block is pressed against the No. 3 inclined surface of the pressure block through the No. 2 inclined surface, so that the plug block moves sideways and presses the limiting sleeve, so that the plug block can be reinforced in the process of the valve head rising, so that the fixing effect of the No. 2 sealing gasket is better and not easy to loosen;

[0018] 3. Through the scraping assembly, when the valve stem rotates and the valve head rises, the scraper scrapes against the inner wall of the valve box and the box cover to remove the dirt on the inner wall, so that the thickness of the inner wall of the valve box and the box cover remains uniform, so that when the No. 2 sealing gasket contacts the inner wall, the gap caused by the uneven thickness of the inner wall is reduced, thereby improving the sealing performance;

[0019] 4. Through the set sealing detection component, when the valve box and the box cover are loose, the liquid flows out from between the valve box and the box cover, and the liquid enters the collection tank. A color indicator, such as copper sulfate pentahydrate, is set between the outer plate and the inner plate. When it encounters the liquid, the color changes, which is convenient for reminding the user that there is a water leakage and preventing the user from ignoring the water leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a water valve with a sealing detection function according to the present invention;

[0021] Figure 2 It is a schematic cross-sectional structural diagram of a valve box of a water valve with a sealing detection function according to the present invention;

[0022] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0023] Figure 4 for Figure 2 The enlarged view of point B in the middle;

[0024] Figure 5 This is a schematic diagram of the valve head and screw structure of a water valve with a sealing detection function according to the present invention;

[0025] Figure 6 It is a schematic diagram of a fixed plate connection structure of a water valve with a sealing detection function according to the present invention;

[0026] Figure 7 It is a schematic cross-sectional structure diagram of a threaded pipe sleeve of a water valve with a sealing detection function according to the present invention;

[0027] Figure 8 It is a structural schematic diagram of a connecting solenoid and a No. 1 connecting plate of a water valve with a sealing detection function according to the present invention;

[0028] Fig. 9 The present invention is a schematic structural diagram of a pressure block of a water valve with a sealing detection function.

[0029] Numbers in the figure: 1, valve body; 2, connecting pipe; 3, flange; 4, valve box; 5, box cover; 6, valve head; 7, valve stem; 8, handle; 9, bearing; 10, sealing assembly; 1001, connecting screw tube; 1002, No. 1 connecting plate; 1003, No. 1 fastening bolt; 1004, No. 1 sealing gasket; 1005, No. 1 mounting groove; 1006, No. 2 screw; 1007, pressure plate; 1008, bolt head; 1009, No. 2 sealing gasket; 11, fixing assembly; 1101, fixing plate; 1102, sliding rod; 1103, plug block; 1104, sliding sleeve ; 1105, inclined plane No. 1; 1106, inclined plane No. 2; 1107, limiting sleeve; 1108, connecting groove; 1109, pressing block; 1110, inclined plane No. 3; 12, scraping assembly; 1201, scraper; 1202, movable rod; 1203, movable head; 1204, threaded sleeve; 1205, spring; 1206, threaded groove; 13, sealing detection assembly; 1301, collecting groove; 1302, outer plate; 1303, inner plate; 1304, circulation groove; 1305, connecting screw; 1306, fixing nut; 1307, upper sealing gasket. DETAILED DESCRIPTION

[0030] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0031] Example: Figures 1 to 9As shown, the present invention provides a technical solution of a water valve with a sealing detection function, including a valve body 1, a valve box 4 is fixedly connected to the middle position of the valve body 1, a box cover 5 is fixedly connected to the upper position of the valve box 4, a valve stem 7 is movably installed in the box cover 5, a valve head 6 is movably installed at the lower position of the valve stem 7, a sealing assembly 10 is movably installed on the valve head 6, the sealing assembly 10 includes a No. 1 sealing gasket 1004, a pressure plate 1007 and a No. 2 sealing gasket 1009, and the No. 1 sealing gasket 1004 is fixedly connected to the two sides of the valve head 6 The pressure plate 1007 is fixedly connected to the No. 1 sealing gasket 1004, the No. 2 sealing gasket 1009 is fixedly connected to the upper position of the valve head 6, the two sides of the valve body 1 are fixedly connected with the connecting pipe 2, the outer end of the connecting pipe 2 is fixedly connected with the flange 3, the valve stem 7 is movably installed with the box cover 5 through the bearing 9, and the upper end of the valve stem 7 is fixedly connected with the handle 8. The sealing assembly 10 also includes a connecting screw 1001, a No. 1 connecting plate 1002, a No. 1 fastening bolt 1003, a No. 1 installation groove 1005, and a No. 2 screw 1 006 and bolt head 1008, the connecting solenoid 1001 is fixedly connected to the two sides of the valve head 6, the No. 1 connecting plate 1002 is fixedly connected to the outer end of the connecting solenoid 1001, the No. 1 fastening bolt 1003 is movably installed on the connecting solenoid 1001, the No. 1 mounting groove 1005 is opened on the No. 1 sealing gasket 1004, the pressing plate 1007 is located in the No. 1 mounting groove 1005, one side of the pressing plate 1007 is fixedly connected to the No. 2 screw rod 1006, and the other side of the pressing plate 1007 is fixedly connected to the bolt head 100 8 is fixedly connected, No. 2 screw 1006 is movably installed in the connecting screw tube 1001, No. 1 connecting plate 1002 is located on both sides of the valve head 6, No. 1 sealing gasket 1004 is fixedly connected to the No. 1 connecting plate 1002, and the connecting pipe 2 on both sides is initially sealed by the No. 1 sealing gasket 1004, and the upper position of the valve head 6 is fixedly connected with No. 2 sealing gasket 1009, so that No. 2 sealing gasket 1009 performs secondary sealing on the liquid, so that when the valve head 6 moves downward, the valve head 6 has a better blocking effect on the liquid.

[0032] A fixing assembly 11 is movably mounted on the valve head 6 at a position above the No. 2 sealing gasket 1009. The fixing assembly 11 includes a fixing plate 1101, an insert block 1103, a limiting sleeve 1107 and a pressing block 1109. The fixing plate 1101 is fixedly connected to a position above the No. 2 sealing gasket 1009. The insert block 1103 is movably mounted on the fixing plate 1101. The limiting sleeve 1107 is fixedly connected to the valve head 6. The pressing block 1109 is fixedly connected to an inner position of the box cover 5. The fixing assembly 11 also includes a slide rod. 1102, a sleeve 1104, a first inclined surface 1105, a second inclined surface 1106 and a connecting groove 1108, the slide bar 1102 is fixedly connected to the fixed plate 1101, the sleeve 1104 is fixedly connected to the two sides of the plug block 1103, the first inclined surface 1105 is arranged on one side of the plug block 1103, and the second inclined surface 1106 is arranged on the other side of the plug block 1103, the connecting groove 1108 is arranged on the second sealing pad 1009 and the fixed plate 1101, and the limiting sleeve 1107 is movable. The plug-in block 1103 is movably mounted in the limiting sleeve 1107. The fixing assembly 11 further includes a third inclined surface 1110, which is provided on the pressing block 1109. The pressing block 1109 is movably mounted on the second inclined surface 1106 of the plug-in block 1103 through the third inclined surface 1110. The plug-in block 1103 slides on the sliding rod 1102 through the sliding sleeve 1104, so that the plug-in block 1103 passes through the first inclined surface 1110. 05 is inserted into the limiting sleeve 1107, and the plug 1103 moves sideways, so that the plug 1103 fixes the fixing plate 1101 to the valve head 6, thereby fixing the No. 2 sealing gasket 1009; when the valve stem 7 rotates upward, the valve head 6 slides upward, and the No. 2 inclined surface 1106 on the plug 1103 and the No. 3 inclined surface 1110 of the pressure block 1109 squeeze each other, thereby pushing the plug 1103 sideways, making the connection between the plug 1103 and the limiting sleeve 1107 more fixed and not easy to loosen.

[0033] A scraper assembly 12 is movably mounted on the valve head 6 at a position below the No. 2 sealing gasket 1009. The scraper assembly 12 includes a scraper 1201 and a threaded sleeve 1204. The threaded sleeve 1204 is movably mounted on the side of the valve head 6. The scraper 1201 is movably mounted on the side of the threaded sleeve 1204. The scraper assembly 12 also includes a thread groove 1206. The thread groove 1206 is opened on the valve head 6. The outer side of the threaded sleeve 1204 is engraved with threads. The threaded sleeve 1204 is movably mounted in the thread groove 1206 through threads. The scraper assembly 12 also includes a movable rod 1202 and a movable head 1203. One end of the movable rod 1202 is connected to the scraper 12 01 is fixedly connected, and the other end of the movable rod 1202 is fixedly connected to the movable head 1203, the movable head 1203 is movably installed in the threaded sleeve 1204, the scraping assembly 12 also includes a spring 1205, the spring 1205 is movably installed in the threaded sleeve 1204, and is located at the side of the movable head 1203, the spring 1205 pushes the scraper 1201 to move sideways, so that the scraper 1201 scrapes the valve box 4 and the box cover 5, so that the scraper 1201 scrapes the dirt on the inner wall. After the dirt on the inner wall is removed, the thickness of the inner wall is uniform, the gap between the No. 2 sealing gasket 1009 and the inner wall is reduced, and the sealing effect of the No. 2 sealing gasket 1009 is maintained.

[0034] A sealing detection assembly 13 is movably installed above the valve box 4. The sealing detection assembly 13 includes a collecting tank 1301, an outer plate 1302 and an inner plate 1303. The collecting tank 1301 is fixedly connected to the upper position of the valve box 4. The outer plate 1302 and the inner plate 1303 are fixedly connected in the collecting tank 1301, and the inner plate 1303 is located on the inner side of the outer plate 1302. The sealing detection assembly 13 also includes a flow slot 1304, which is opened on the inner plate 1303. The sealing detection assembly 13 also includes a connecting screw 1305, a fixing nut 1306 and an upper sealing gasket 1307. The connecting screw 1 305 is fixedly connected to the upper position of the valve box 4, and the connecting screw 1305 is located on the inner side of the inner plate 1303, the upper sealing gasket 1307 is located between the valve box 4 and the box cover 5, the connecting screw 1305 passes through the upper sealing gasket 1307 and the shell of the box cover 5, the fixing nut 1306 is movably installed on the connecting screw 1305, and is located above the shell of the box cover 5. When leakage occurs between the valve box 4 and the box cover 5, the liquid enters the collecting groove 1301, and enters the position between the outer plate 1302 and the inner plate 1303 through the circulation groove 1304, causing the color indicator to change color, thereby reminding the user that the water valve is leaking.

[0035] It should be noted that the present invention is a water valve with a closed detection function, a No. 1 connecting plate 1002 is fixedly connected to the two sides of the valve head 6, a No. 1 sealing gasket 1004 is fixedly connected to the No. 1 connecting plate 1002, a No. 2 screw 1006 on one side of the pressure plate 1007 is screwed inward, and a screw hole is provided at the center position of the No. 1 connecting plate 1002 and the connecting screw tube 1001, and the other side of the pressure plate 1007 is rotated by the bolt head 1008 and the external wrench, so that the pressure plate 1007 enters the No. 1 installation groove 1005, so that the pressure plate 1007 fixes the No. 1 sealing gasket 1004 to the No. 1 connecting plate 1002, and then the No. 1 fastening bolt 1003 is fixedly connected to the connecting screw tube 1001, and the No. 1 fastening bolt 1003 is fixedly connected to the connecting screw tube 1001. 03, fix the No. 2 screw 1006 at the lower end, so that the fixing effect of the No. 2 sealing gasket 1009 is better and not easy to loosen. The No. 2 sealing gasket 1009 is fixedly connected to the upper position of the valve head 6 and fixed by the fixing component 11. The No. 1 sealing gasket 1004 seals both sides of the connecting pipe 2. The No. 2 sealing gasket 1009 is secondary sealed in the valve box 4 and the box cover 5, so that when the valve head 6 moves downward, the valve head 6 can better block the liquid circulation. The No. 2 sealing gasket 1009 is fixedly connected to the valve head 6, and the limiting sleeve 1107 passes through the No. 2 sealing gasket 1009 and the connecting groove 1108 of the fixing plate 1101, and then the plug 1103 is inserted into the limiting sleeve 1107 on the side, and the plug 1103 is squeezed to the side. The fixing plate 1101 is fixedly connected to the valve head 6, and the valve stem 7 is engraved with threads. A screw hole is provided in the middle position of the valve head 6. As the valve stem 7 rotates, the valve head 6 moves upward. One side of the plug 1103 is provided with a No. 1 inclined surface 1105, and the other side is provided with a No. 2 inclined surface 1106. The No. 1 inclined surface 1105 is movably installed in the limiting sleeve 1107. When the valve head 6 moves to the upper position, the No. 2 inclined surface 1106 of the plug 1103 and the No. 3 inclined surface 1110 of the pressure block 1109 squeeze each other, so that the plug 1103 moves sideways, so that the plug 1103 is convenient to be reinforced during the rising process of the valve stem 7, so that the fixing effect of the plug 1103 is better and not easy to loosen. A scraper 1201 is movably installed on the side position of the valve head 6 to scrape The plate 1201 slides on the inner wall of the valve box 4 and the box cover 5, one end of the movable rod 1202 is fixedly connected to the scraper 1201, and the other end of the movable rod 1202 is fixedly connected to the movable head 1203, and the spring 1205 pushes the movable head 1203 to move, so that the scraper 1201 fits the inner wall of the valve box 4 and the box cover 5. In the process of the valve head 6 moving upward, the scraper 1201 scrapes off the dirt on the valve box 4 and the box cover 5. After the dirt on the inner wall of the valve box 4 and the box cover 5 is removed, the thickness of the inner wall remains uniform, so that when the No. 2 sealing gasket 1009 contacts the valve box 4 and the box cover 5, the gap between the two is reduced, so that the sealing effect of the No. 2 sealing gasket 1009 is better. A connecting screw 1305 is fixedly connected to the valve box 4.The connecting screw 1305 passes through the upper sealing gasket 1307 and the shell of the box cover 5, and then the fixing nut 1306 is tightened on the connecting screw 1305, so as to fix the box cover 5, so that the box cover 5 and the valve box 4 are sealed and fixed. When the seal between the box cover 5 and the valve box 4 fails, the liquid water flows out from between the valve box 4 and the box cover 5, and the liquid enters the collection tank 1301. The collection tank 1301 is provided with a color indicator, such as copper sulfate pentahydrate, which is located between the outer plate 1302 and the inner plate 1303. The liquid in the collection tank 1301 enters the position between the outer plate 1302 and the inner plate 1303 through the circulation groove 1304, and the color indicator changes color, thereby reminding the user that there is a leakage between the box cover 5 and the valve box 4, so as to avoid ignoring the leakage.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A water valve with a sealing detection function, comprising a valve body (1), a valve box (4) fixedly connected to the middle of the valve body (1), a box cover (5) fixedly connected to the upper part of the valve box (4), a valve stem (7) movably installed in the box cover (5), and a valve head (6) movably installed below the valve stem (7), characterized in that: A sealing assembly (10) is movably mounted on the valve head (6), and the sealing assembly (10) comprises a first sealing gasket (1004) and a second sealing gasket (1009), wherein the first sealing gasket (1004) is fixedly connected to positions on both sides of the valve head (6), and the second sealing gasket (1009) is fixedly connected to a position above the valve head (6), and a fixing assembly (11) is movably mounted on the valve head (6) at a position above the second sealing gasket (1009), and the fixing assembly (11) comprises a fixing plate (1101) and an insert block (1103), and the fixing plate (1101) is fixedly connected to the valve head (6). The plug block (1103) is movably mounted on the fixed plate (1101) and connected to the upper position of the No. 2 sealing gasket (1009). A scraper assembly (12) is movably mounted on the valve head (6) at a position below the No. 2 sealing gasket (1009). The scraper assembly (12) includes a scraper plate (1201) and a threaded sleeve (1204). The threaded sleeve (1204) is movably mounted on the side of the valve head (6). The scraper plate (1201) is movably mounted on the side of the threaded sleeve (1204). A sealing detection assembly (13) is movably mounted on the upper position of the valve box (4).

2. A water valve with a sealing detection function according to claim 1, characterized in that: The valve body (1) is fixedly connected to connecting pipes (2) at both sides, the outer end of the connecting pipe (2) is fixedly connected to a flange (3), the valve stem (7) is movably mounted on the box cover (5) via a bearing (9), and the upper end of the valve stem (7) is fixedly connected to a handle (8).

3. The water valve with airtightness detection function according to claim 1, characterized in that: The sealing assembly (10) further comprises a connecting spiral tube (1001), a No. 1 connecting plate (1002), a No. 1 fastening bolt (1003), a No. 1 mounting groove (1005), a No. 2 screw rod (1006), a pressing plate (1007) and a bolt head (1008); the pressing plate (1007) is fixedly connected to the No. 1 sealing gasket (1004); the connecting spiral tube (1001) is fixedly connected to the two sides of the valve head (6); the No. 1 connecting plate (1002) is fixedly connected to the connecting spiral tube (1001) and the connecting plate (1002) is fixedly connected to the connecting spiral tube (1001). The No. 1 fastening bolt (1003) is movably mounted on the connecting screw tube (1001), the No. 1 mounting groove (1005) is provided on the No. 1 sealing gasket (1004), the pressing plate (1007) is located in the No. 1 mounting groove (1005), one side of the pressing plate (1007) is fixedly connected to the No. 2 screw rod (1006), and the other side of the pressing plate (1007) is fixedly connected to the bolt head (1008), and the No. 2 screw rod (1006) is movably mounted in the connecting screw tube (1001).

4. The water valve with airtightness detection function according to claim 1, characterized in that: The fixing assembly (11) further comprises a sliding rod (1102), a sliding sleeve (1104), a first inclined surface (1105), a second inclined surface (1106) and a connecting groove (1108); the sliding rod (1102) is fixedly connected to the fixing plate (1101); the sliding sleeve (1104) is fixedly connected to both sides of the plug block (1103); the first inclined surface (1105) is arranged at one side of the plug block (1103); and the second inclined surface (1106) is arranged at the other side of the plug block (1103); the connecting groove (1108) is arranged on the second sealing gasket (1009) and the fixing plate (1101); the limiting sleeve (1107) is movably installed in the connecting groove (1108) of the second sealing gasket (1009) and the fixing plate (1101); and the plug block (1103) is movably installed in the limiting sleeve (1107).

5. The water valve with airtightness detection function according to claim 4, characterized in that: The fixing assembly (11) further comprises a third inclined surface (1110), a pressure block (1109) and a limiting sleeve (1107); the third inclined surface (1110) is provided on the pressure block (1109); the pressure block (1109) is movably mounted via the third inclined surface (1110) and the second inclined surface (1106) of the insert block (1103); the pressure block (1109) is fixedly connected to the inner side of the box cover (5); and the limiting sleeve (1107) is fixedly connected to the valve head (6).

6. The water valve with airtightness detection function according to claim 1, characterized in that: The scraping assembly (12) further comprises a thread groove (1206), wherein the thread groove (1206) is provided on the valve head (6), the outer side of the threaded sleeve (1204) is engraved with threads, and the threaded sleeve (1204) is movably installed in the thread groove (1206) by means of threads.

7. The water valve with airtightness detection function according to claim 6, characterized in that: The scraping assembly (12) further comprises a movable rod (1202), a movable head (1203) and a spring (1205); one end of the movable rod (1202) is fixedly connected to the scraper (1201), and the other end of the movable rod (1202) is fixedly connected to the movable head (1203); the movable head (1203) is movably installed in a threaded sleeve (1204); and the spring (1205) is movably installed in the threaded sleeve (1204) and is located at a side position of the movable head (1203).

8. The water valve with airtightness detection function according to claim 1, characterized in that: The sealing detection component (13) includes a collecting groove (1301), an outer plate (1302), an inner plate (1303) and a circulation groove (1304), wherein the collecting groove (1301) is fixedly connected to the upper position of the valve box (4), the outer plate (1302) and the inner plate (1303) are fixedly connected in the collecting groove (1301), and the inner plate (1303) is located on the inner side of the outer plate (1302), and the circulation groove (1304) is opened on the inner plate (1303).

9. The water valve with airtightness detection function according to claim 8, characterized in that: The sealing detection assembly (13) further comprises a connecting screw (1305), a fixing nut (1306) and an upper sealing gasket (1307); the connecting screw (1305) is fixedly connected to the upper position of the valve box (4), and the connecting screw (1305) is located on the inner side of the inner plate (1303); the upper sealing gasket (1307) is located between the valve box (4) and the box cover (5); the connecting screw (1305) passes through the upper sealing gasket (1307) and the shell of the box cover (5); the fixing nut (1306) is movably mounted on the connecting screw (1305) and is located above the shell of the box cover (5).

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