Quick-opening stop valve and method

Abstract

The application discloses a quick-opening stop valve and a method thereof, which comprises a valve body, a control assembly, a connecting screw, a connecting plate, a clamping bolt, a backflow assembly, a clamping connecting pipe and a sealing washer. When the stop valve is opened and used, the adjusting plunger in the control assembly is lifted through the control handle, the movable valve plate at the bottom is separated from the connecting groove under the action of the reset spring, and the internal passage of the valve body is opened. In the closed state of the valve body, the fluid flowing into the clamping connecting pipe flows into the backflow assembly through the backflow interface and the guide pipe, and is stored in the water storage pump through the backflow guide pipe in the backflow assembly, so that the fluid pressure in the valve body is sequentially relieved, the quick opening and closing of the stop valve are realized, the pressure in the stop valve can be effectively relieved, and the practical service life of the stop valve is prolonged.

Description

Technical Field

[0001] This invention relates to the field of gate valve technology, and in particular to a gate valve that can be opened quickly and a method thereof. Background Technology

[0002] A gate valve, also known as a stop valve, is a type of forced-sealing valve. Therefore, when the valve is closed, pressure must be applied to the valve disc to force a leak-proof seal. Currently, most gate valves on the market use fluid pressure to impact the valve disc to open and close the valve. This means that in actual use, the fluid needs to be pressurized to a certain pressure to trigger the opening of the gate valve. This method results in a slow opening response speed for the gate valve.

[0003] Patent CN202011559854.5 provides a proportional flow shut-off valve. By fixing a retaining ring to the outer wall of the valve stem, the valve stem becomes more stable during operation. Symmetrically arranged oil injection cylinders ensure more even oil injection into the horizontal pipes on both sides of the valve stem, guaranteeing stable lubrication. Simultaneously, under the action of a first return spring, the pressing top plate is no longer under force, causing the first return spring to drive the vertical rod to return to its original position. This allows the piston to move upwards inside the oil injection cylinder. Under air pressure, lubricating oil can be retained inside the oil injection cylinder. A cleaning mechanism, with cleaning needles installed inside the horizontal pipes, ensures that the outer side of the cleaning needles always contacts the threaded grooves of the valve stem under the elastic action of a second return spring. This allows the cleaning needles to clean the threads on the outer wall of the valve stem during rotation, preventing dust accumulation that could affect the valve's performance and efficiency.

[0004] However, the aforementioned patents have the following problems:

[0005] 1. The opening and closing of this type of valve still relies on the internal pressure of the fluid. The valve disc is opened by the magnitude of the internal pressure. When the fluid pressure is insufficient, the response speed of the valve is slower.

[0006] 2. During the closing process of the shut-off valve, if the pressure inside the fluid is insufficient to open the shut-off valve, the pressure stored inside may cause leakage in the valve body, which may lead to damage to the shut-off valve. Summary of the Invention

[0007] The purpose of this invention is to provide a quick-opening shut-off valve and its method. An external connecting pipe is installed in an inner locking groove within a locking connecting pipe, and a force is applied to a pressure seat, compressing the pressure spring. Simultaneously, the pressure-inserted pipe passes through a one-way permeable membrane. When the shut-off valve needs to be opened, the adjusting pin in the control assembly is lifted using a control handle, causing the bottom movable valve plate to disengage from the connecting groove under the action of a return spring, thereby opening the internal passage of the valve body. With the valve body closed, fluid flowing into the locking connecting pipe flows into the return assembly through the return port and guide pipe, and is then transported to a water storage pump for storage via the return guide pipe within the return assembly, thus solving the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A quick-opening shut-off valve includes a valve body, a control component, connecting screws, a connecting plate, snap-fit ​​bolts, a reflux component, a snap-fit ​​connecting tube, and a sealing gasket. The control component is mounted on the top of the valve body, the connecting screws are mounted on the side of the control component, the connecting plate is mounted on the bottom of the valve body, the snap-fit ​​bolts are mounted at the four corners of the connecting plate, the reflux component is mounted at the center of the connecting plate, and the snap-fit ​​connecting tubes are mounted on the left and right sides of the valve body respectively. Sealing gaskets are installed at the connection points between the snap-fit ​​connecting tubes and the valve body.

[0010] Preferably, the valve body includes a main housing, a threaded groove, a bottom plate, a reflux interface, a guide tube, and a locking thread. The inner sides of the left and right ends of the main housing are respectively provided with threaded grooves. The bottom plate is provided at the center of the bottom end of the main housing. The left and right sides of the bottom plate are respectively provided with reflux interfaces. The lower side of the reflux interface is provided with a guide tube. The lower half of the guide tube is provided with a locking thread on the outer side.

[0011] Preferably, the valve body further includes a connecting groove, an elastic sealing gasket, and a movable valve plate. The connecting groove is provided at the upper center of the bottom plate, the elastic sealing gasket is provided at the bottom of the connecting groove, and the movable valve plate is installed above the elastic sealing gasket.

[0012] Preferably, the valve body further includes an upper sealing seat, an inner movable groove, a movable top plate, and a return spring. The upper half of the movable valve plate is provided with an upper sealing seat at the contact part with the main housing. An inner movable groove is provided inside the main housing on the upper side of the upper sealing seat. A movable top plate is provided on the top of the movable valve plate. A return spring is provided on the outer side of the movable valve plate below the movable top plate.

[0013] Preferably, the control component includes a snap-fit ​​slot plate, an adjustment frame, an adjustment pin, a spring plate, an adjustment spring, a control handle, and a handle bolt. The upper side of the snap-fit ​​slot plate is provided with an adjustment frame, the adjustment pin is installed inside the adjustment frame, the adjustment pin inside the adjustment frame is provided with a spring plate, the adjustment spring is installed below the spring plate, and the control handle is installed on the top of the adjustment pin via the handle bolt.

[0014] Preferably, the reflux assembly includes an assembly housing, a snap-fit ​​base, a pipe clamp groove, a reflux short pipe, and a tee connector. The snap-fit ​​base is located at the center of the upper side of the assembly housing, and the snap-fit ​​base contains a pipe clamp groove. A reflux short pipe is installed at the bottom of the pipe clamp groove on the left side, and a tee connector is installed at the bottom of the reflux short pipe.

[0015] Preferably, the reflux assembly further includes a reflux guide pipe, a water storage pump, a pump base, a sealing pump, and a sealing cover. The reflux guide pipe is installed inside the tee connector, the water storage pump is installed on the reflux guide pipe, the pump base is installed on the left side of the assembly housing, the sealing pump is installed inside the pump base, and a sealing cover is installed at the end of the sealing pump.

[0016] Preferably, the snap-fit ​​connecting tube includes a tube shell, an interface seat, a threaded sleeve, and an inner snap-fit ​​groove. The interface seat is provided on the left side of the tube shell, the threaded sleeve is provided on the right side of the tube shell, and the inner snap-fit ​​groove is provided on the left side inside the tube shell.

[0017] Preferably, the snap-fit ​​connecting tube further includes a pressure seat, a pressure spring, a pressure insert, a sealing inner seat, and a one-way permeable membrane. The pressure seat is installed in the inner snap-fit ​​groove, the pressure insert is provided on the lower side of the pressure seat, the pressure spring is provided on the outer side of the pressure insert, the sealing inner seat is installed on the inner right wall of the inner shell of the tube, and the one-way permeable membrane is installed in the sealing inner seat.

[0018] This invention provides another technical solution: a method for using a quick-opening shut-off valve, comprising the following steps:

[0019] Step 1: Install the external connection pipe into the inner clamping groove inside the clamping connection pipe, and apply force to the pressure seat to compress the pressure spring, while the pressure clamping pipe passes through the one-way permeable membrane.

[0020] Step 2: When it is necessary to connect the shut-off valve, lift the adjusting pin in the control assembly by using the control handle, so that the movable valve plate at the bottom is disengaged from the connecting groove under the action of the return spring, thereby opening the internal passage of the valve body.

[0021] Step 3: When it is necessary to close the shut-off valve, press down the adjusting pin with the control handle to control the adjusting pin to press down the return spring, so that the movable valve plate is nested into the connecting groove, thereby closing the passage in the valve body;

[0022] Step 4: With the valve body closed, the fluid flowing into the interlocking connection pipe flows into the return assembly through the return port and guide pipe, and is then transported to the water storage pump for storage via the return guide pipe in the return assembly.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] 1. The present invention proposes a quick-opening shut-off valve and its method. In the prior art, the opening and closing of such valves still rely on the internal pressure of the fluid. The valve disc is impacted by the magnitude of the internal pressure to open the shut-off valve. However, when the fluid pressure is insufficient, the response speed of the shut-off valve is slow. In the present invention, the adjusting pin in the control component is lifted by the control handle, so that the movable valve plate at the bottom is disengaged from the connecting groove under the action of the return spring, thereby opening the internal passage of the valve body. The opening and closing timing of the shut-off valve can be manually controlled in a controllable manner, and the quick opening and closing of the shut-off valve is achieved.

[0025] 2. The present invention proposes a quick-opening shut-off valve and its method. In the prior art, during the closing process of the shut-off valve, when the internal fluid pressure is insufficient to open the shut-off valve, the internal pressure may cause leakage in the valve body, thereby damaging the shut-off valve. In the present invention, when the valve body is closed, the fluid flowing into the interlocking connecting pipe flows into the return assembly through the return port and guide pipe, and is then transported to the water storage pump for storage via the return guide pipe in the return assembly. This relieves the fluid pressure inside the valve body, effectively reducing the pressure inside the shut-off valve and thus improving the actual service life of the shut-off valve. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the present invention;

[0027] Figure 2 This is a cross-sectional view of the valve body of the present invention;

[0028] Figure 3 This is an enlarged structural schematic diagram of point A on the valve body of the present invention;

[0029] Figure 4 This is an enlarged structural schematic diagram of point B on the valve body of the present invention;

[0030] Figure 5 This is a partial cross-sectional view of the control component of the present invention;

[0031] Figure 6 This is a cross-sectional view of the reflow assembly of the present invention;

[0032] Figure 7 This is a cross-sectional view of the snap-fit ​​connecting tube of the present invention.

[0033] In the diagram: 1. Valve body; 101. Main housing; 102. Threaded groove; 103. Bottom plate; 104. Return port; 105. Guide tube; 106. Threaded engagement; 107. Connecting groove; 108. Elastic sealing gasket; 109. Movable valve plate; 1010. Upper sealing seat; 1011. Inner movable groove; 1012. Movable top plate; 1013. Return spring; 2. Control assembly; 21. Snap-fit ​​groove plate; 22. Adjusting frame; 23. Adjusting pin; 24. Spring plate; 25. Adjusting spring; 26. Control handle; 27. Handle bolt; 3. 1. Connecting screws; 4. Connecting plate; 5. Snap bolts; 6. Return assembly; 61. Assembly housing; 62. Snap base; 63. Pipe slot; 64. Return short pipe; 65. T-connector; 66. Return guide pipe; 67. Water pump; 68. Pump base; 69. Sealed pump; 610. Sealing cover; 7. Snap-fit ​​connecting pipe; 71. Pipe housing; 72. Interface seat; 73. Threaded sleeve; 74. Inner snap-fit ​​groove; 75. Pressure seat; 76. Pressure spring; 77. Pressure insert; 78. Sealing inner seat; 79. One-way through membrane; 8. Sealing gasket. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figure 1 A quick-opening shut-off valve includes a valve body 1, a control component 2, connecting screws 3, a connecting plate 4, snap bolts 5, a return flow component 6, a snap-fit ​​connecting pipe 7, and a sealing gasket 8. The control component 2 is installed on the top of the valve body 1, and the valve body 1 is opened and closed by the control component 2. The connecting screws 3 are installed on the side of the control component 2, and the connecting screws 3 are used to connect the control component 2 and the valve body 1. The connecting plate 4 is installed on the bottom of the valve body 1, and the snap bolts 5 are installed at the four corners of the connecting plate 4, and the snap bolts 5 are used to fix the connecting plate 4 to the bottom of the valve body 1. The return flow component 6 is installed at the center of the connecting plate 4, and the return flow component 6 is used to provide fluid return flow when the valve body 1 is closed, so as to reduce the pressure inside the valve body 1. The snap-fit ​​connecting pipes 7 are installed on the left and right sides of the valve body 1, and the snap-fit ​​connecting pipes 7 are used to connect to external pipes. The sealing gaskets 8 are installed at the connection between the snap-fit ​​connecting pipes 7 and the valve body 1, and the sealing gaskets 8 are used to fill and seal the gap between the snap-fit ​​connecting pipes 7 and the valve body 1.

[0036] Please see Figures 2-4The valve body 1 includes a main housing 101, threaded grooves 102, a bottom plate 103, a return port 104, a guide tube 105, and a locking thread 106. Threaded grooves 102 are provided on the inner sides of both the left and right ends of the main housing 101, and the threaded grooves 102 are used to assemble and lock the connecting tube 7. A bottom plate 103 is located at the center of the bottom end of the main housing 101. Return ports 104 are provided on the left and right sides of the bottom plate 103, allowing fluid inside the main housing 101 to enter through the return ports 104. In the lower guide tube 105, the lower side of the return port 104 is provided with a guide tube 105. Fluid flows into the lower return assembly 6 through the guide tube 105. The lower half of the guide tube 105 is provided with a snap-fit ​​thread 106 on the outer side, which is used to connect with the return assembly 6. The valve body 1 also includes a connecting groove 107, an elastic sealing gasket 108 and a movable valve plate 109. The upper center of the bottom plate 103 is provided with a connecting groove 107, and the bottom of the connecting groove 107 is provided with an elastic sealing gasket. 108, the elastic sealing gasket 108 is used to complete the internal sealing of the valve body 1. A movable valve plate 109 is installed above the elastic sealing gasket 108. The movable valve plate 109 completes the closure of the valve body 1 by being nested in the connecting groove 107. The valve body 1 also includes an upper sealing seat 1010, an inner movable groove 1011, a movable top plate 1012, and a return spring 1013. The upper sealing seat 1010 is provided at the contact part between the upper half of the movable valve plate 109 and the main housing 101. The upper sealing seat 1010 is used for... At the sealing assembly connection point, an inner movable groove 1011 is provided inside the main housing 101 on the upper side of the upper sealing seat 1010. A movable top plate 1012 is provided on the top of the movable valve plate 109. The movable top plate 1012 can move in the inner movable groove 1011. A return spring 1013 is provided on the outer side of the movable valve plate 109 below the movable top plate 1012. By pressing down the movable top plate 1012 and applying a force to the return spring 1013 by the movable top plate 1012, the movable valve plate 109 is moved downward.

[0037] Please see Figure 5 The control assembly 2 includes a snap-fit ​​slot plate 21, an adjusting frame 22, an adjusting pin 23, a spring plate 24, an adjusting spring 25, a control handle 26, and a handle bolt 27. The adjusting frame 22 is provided on the upper side of the snap-fit ​​slot plate 21. The adjusting pin 23 is installed inside the adjusting frame 22. The adjusting pin 23 is used to apply force to the movable top plate 1012 inside the valve body 1. The adjusting pin 23 inside the adjusting frame 22 is provided with a spring plate 24. The adjusting spring 25 is installed below the spring plate 24. When the adjusting pin 23 descends, the spring plate 24 applies force to the adjusting spring 25. The top of the adjusting pin 23 is connected to the control handle 26 through the handle bolt 27. The position of the adjusting pin 23 in the adjusting frame 22 is controlled by manually adjusting the control handle 26.

[0038] Please see Figure 6The reflux assembly 6 includes an assembly housing 61, a snap-fit ​​base 62, a pipe clamping groove 63, a reflux short pipe 64, and a tee connector 65. The snap-fit ​​base 62 is located at the upper center of the assembly housing 61. The snap-fit ​​base 62 contains a pipe clamping groove 63. The bottom of the guide pipe 105 is inserted into the pipe clamping groove 63 in the snap-fit ​​base 62. The reflux short pipe 64 is installed at the bottom of the left-side pipe clamping groove 63. The reflux short pipe 64 is used to connect with the reflux guide pipe 66 to form a complete internal connecting loop. The tee connector 65 is installed at the bottom of the reflux short pipe 64. The reflux assembly 6 also includes a reflux guide pipe 66, a water storage pump 67, and a pump. The system includes a base 68, a sealing pump 69, and a sealing cover 610. A return flow guide pipe 66 is installed inside a three-way connector 65, and a water storage pump 67 is installed on the return flow guide pipe 66. When the valve body 1 is closed, fluid enters the water storage pump 67 through the return flow guide pipe 66 and is stored therein. A pump base 68 is installed on the left side of the component housing 61, and a sealing pump 69 is installed inside the pump base 68. The sealing pump 69 is used to connect to external equipment and to discharge excess fluid from the water storage pump 67. A sealing cover 610 is installed at the end of the sealing pump 69. By installing the sealing cover 610 at the connection port of the sealing pump 69, the sealing pump 69 is sealed.

[0039] Please see Figure 7 The snap-fit ​​connecting pipe 7 includes a pipe shell 71, an interface seat 72, a threaded sleeve 73, and an inner snap-fit ​​groove 74. The interface seat 72 is located on the left side of the pipe shell 71, protecting the connection point between the pipe shell 71 and an external pipeline. The threaded sleeve 73 is located on the right side of the pipe shell 71 and is snap-fitted into the threaded groove 102. The inner left side of the pipe shell 71 has an inner snap-fit ​​groove 74. The snap-fit ​​connecting pipe 7 also includes a pressure seat 75, a pressure spring 76, a pressure insert 77, a sealing inner insert 78, and a one-way through-membrane 79. A pressure seat 75 is installed in the inner groove 74. The pressure seat 75 can move freely in the inner groove 74. A pressure tube 77 is provided on the lower side of the pressure seat 75. The fluid in the external pipeline is delivered to the valve body 1 through the pressure tube 77. A pressure spring 76 is provided on the outside of the pressure tube 77. A sealing inner seat 78 is installed on the inner right wall of the inner shell 71. A one-way diaphragm 79 is installed in the sealing inner seat 78. The pressure seat 75 applies a force to the pressure spring 76, so that the pressure tube 77 can be installed through the one-way diaphragm 79.

[0040] To better demonstrate the usage process of a quick-opening shut-off valve, this embodiment presents a method for using a quick-opening shut-off valve, including the following steps:

[0041] Step 1: Install the external connection pipe into the inner clamping groove 74 inside the clamping connection pipe 7, and apply force to the pressure seat 75 to compress the pressure spring 76. At the same time, the pressure clamping pipe 77 passes through the one-way permeable membrane 79. After the pressure clamping pipe 77 passes through the one-way permeable membrane 79, the fluid in the external connection pipe flows into the valve body 1 through the pressure clamping pipe 77.

[0042] Step 2: When it is necessary to connect the shut-off valve, lift the adjusting pin 23 in the control component 2 by controlling the handle 26, so that the bottom movable valve plate 109 is disengaged from the connecting groove 107 under the action of the return spring 1013, thereby opening the internal passage of the valve body 1. The opening and closing state of the shut-off valve can be quickly changed manually to prevent the fluid pressure inside the shut-off valve from being too high and affecting the internal parts of the shut-off valve.

[0043] Step 3: When it is necessary to close the shut-off valve, press down the adjusting pin 23 by controlling the handle 26, control the adjusting pin 23 to press down the return spring 1013, so that the movable valve plate 109 is nested into the connecting groove 107, thereby closing the passage in the valve body 1. After manually closing the shut-off valve, the fluid in the valve can directly enter the return assembly 6 for storage.

[0044] Step 4: With the valve body 1 closed, the fluid flowing into the interlocking connecting pipe 7 flows into the return assembly 6 through the return port 104 and the guide pipe 105, and is then transported to the water storage pump 67 via the return guide pipe 66 in the return assembly 6 for storage. With the shut-off valve closed, the water storage pump 67 receives and stores excess fluid, reducing the pressure inside the shut-off valve and thus preventing the shut-off valve from rupturing.

[0045] In summary, the quick-opening shut-off valve and its method of the present invention first install the external connecting pipe into the inner clamping groove 74 inside the clamping connecting pipe 7, and apply force to the pressure seat 75 so that the pressure seat 75 can compress the pressure spring 76. At the same time, the pressure clamping pipe 77 passes through the one-way through membrane 79. When the shut-off valve is opened and used, the adjusting pin 23 in the control component 2 is lifted by the control handle 26, so that the bottom movable valve plate 109 is disengaged from the connecting groove 107 under the action of the return spring 1013, thereby opening the internal passage of the valve body 1. In the closed state of the valve body 1, the fluid flowing in from the clamping connecting pipe 7 flows into the return component 6 through the return port 104 and the guide pipe 105, and is transported to the water storage pump 67 for storage through the return guide pipe 66 in the return component 6, thereby relieving the fluid pressure inside the valve body 1. The present invention has a complete and reasonable structure, realizes the quick opening and closing of the shut-off valve, and can effectively relieve the pressure inside the shut-off valve, thereby improving the actual service life of the shut-off valve.

[0046] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A quick-opening shut-off valve, comprising a valve body (1), a control assembly (2), a connecting screw (3), a connecting plate (4), a snap-fit ​​bolt (5), a return assembly (6), a snap-fit ​​connecting pipe (7), and a sealing gasket (8), characterized in that: A control assembly (2) is installed on the top of the valve body (1), and connecting screws (3) are installed on the side of the control assembly (2). A connecting plate (4) is installed on the bottom of the valve body (1), and snap bolts (5) are installed at the four corners of the connecting plate (4). A return assembly (6) is installed at the center of the connecting plate (4). A snap-fit ​​connecting pipe (7) is installed on the left and right sides of the valve body (1). A sealing gasket (8) is installed at the connection between the snap-fit ​​connecting pipe (7) and the valve body (1). The valve body (1) includes a main housing (101), a threaded groove (102), a bottom plate (103), a return port (104), a guide tube (105), and a snap-fit ​​thread (106). The left and right ends of the main housing (101) are... The valve body (1) is provided with threaded grooves (102) on each side. The bottom center of the main housing (101) is provided with a bottom plate (103). The bottom plate (103) is provided with return ports (104) on the left and right sides respectively. The bottom side of the return port (104) is provided with a guide tube (105). The lower half of the guide tube (105) is provided with a locking thread (106). The valve body (1) also includes a connecting groove (107), an elastic sealing gasket (108) and a movable valve plate (109). The bottom center of the bottom plate (103) is provided with a connecting groove (107). The bottom of the connecting groove (107) is provided with an elastic sealing gasket (108). The movable valve plate (109) is installed above the elastic sealing gasket (108). The valve body (1) also includes an upper sealing seat (1010), an inner movable groove (1011), a movable top plate (1012), and a return spring (1013). The upper half of the movable valve plate (109) is provided with an upper sealing seat (1010) at the contact part with the main housing (101). The main housing (101) above the upper sealing seat (1010) is provided with an inner movable groove (1011). The top of the movable valve plate (109) is provided with a movable top plate (1012). The outer side of the movable valve plate (109) below the movable top plate (1012) is provided with a return spring (1013). The return assembly (6) includes an assembly housing (61), a snap-fit ​​base (62), a pipe clamp groove (63), a return short pipe (64), and a three-way connector. The component (6) includes a snap-fit ​​base (62) at the center of the upper side of the housing (61), a pipe slot (63) inside the snap-fit ​​base (62), a return short pipe (64) installed at the bottom of the pipe slot (63) on the left side, a three-way connector (65) installed at the bottom of the return short pipe (64), a return guide pipe (66), a water storage pump (67), a pump base (68), a sealing pump (69) and a sealing cover (610), a return guide pipe (66) installed inside the three-way connector (65), a water storage pump (67) installed on the return guide pipe (66), a pump base (68) installed on the left side of the housing (61), and a sealing pump (69) installed inside the pump base (68).A sealing cap (610) is installed at the end of the sealed pump (69).

2. The quick-opening shut-off valve as described in claim 1, characterized in that, The control component (2) includes a snap-fit ​​slot plate (21), an adjustment frame (22), an adjustment pin (23), a spring plate (24), an adjustment spring (25), a control handle (26), and a handle bolt (27). The snap-fit ​​slot plate (21) has an adjustment frame (22) on its upper side. The adjustment pin (23) is installed inside the adjustment frame (22). The adjustment pin (23) is installed on the adjustment pin (23) inside the adjustment frame (22). The spring plate (24) is installed on the adjustment pin (23). The adjustment spring (25) is installed below the spring plate (24). The control handle (26) is installed on the top of the adjustment pin (23) through the handle bolt (27).

3. The quick-opening shut-off valve as described in claim 2, characterized in that, The snap-fit ​​connecting tube (7) includes a tube shell (71), an interface seat (72), a threaded sleeve (73), and an inner snap-fit ​​groove (74). The interface seat (72) is provided on the left side of the tube shell (71), the threaded sleeve (73) is provided on the right side of the tube shell (71), and the inner snap-fit ​​groove (74) is provided on the left side inside the tube shell (71).

4. A quick-opening shut-off valve as described in claim 3, characterized in that, The snap-fit ​​connecting tube (7) also includes a pressure seat (75), a pressure spring (76), a pressure insert (77), a sealing insert (78), and a one-way through membrane (79). The pressure seat (75) is installed in the inner snap-fit ​​groove (74). The pressure insert (77) is provided on the lower side of the pressure seat (75). The pressure spring (76) is provided on the outer side of the pressure insert (77). The sealing insert (78) is installed on the inner right side of the inner wall of the tube shell (71). The one-way through membrane (79) is installed in the sealing insert (78).

5. A method of using the quick-opening shut-off valve as described in claim 4, characterized in that, Includes the following steps: S1: Install the external connection pipe into the inner clamping groove (74) inside the clamping connection pipe (7), and apply force to the pressure seat (75) so that the pressure seat (75) compresses the pressure spring (76), while the pressure clamping pipe (77) passes through the one-way through membrane (79); S2: When it is necessary to connect the shut-off valve, the adjusting pin (23) in the control assembly (2) is lifted by the control handle (26), so that the bottom movable valve plate (109) is disengaged from the connecting groove (107) under the action of the return spring (1013), thereby opening the internal passage of the valve body (1); S3: When it is necessary to close the shut-off valve, the adjusting pin (23) is pressed down by the control handle (26), and the adjusting pin (23) is pressed down by the reset spring (1013), so that the movable valve plate (109) is nested into the connecting groove (107), thereby closing the passage in the valve body (1); S4: When the valve body (1) is closed, the fluid flowing into the interlocking connection pipe (7) flows into the return assembly (6) through the return port (104) and the guide pipe (105), and is then transported to the water storage pump (67) for storage via the return guide pipe (66) in the return assembly (6).

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