Indoor water-saving fire hydrant

Abstract

This invention belongs to the field of fire protection technology, and particularly relates to an indoor water-saving fire hydrant, including a valve body and a handwheel. The interface includes an inner ring and an outer ring, with a slot between the inner and outer rings for accommodating the insertion of a connector. A sealing plate for sealing the interface and collecting residual water is rotatably connected to the inner ring. A rotating shaft is engaged with the sealing plate. A bevel gear two meshing with a bevel gear one is rotatably connected to the inner ring. A transmission wheel is engaged with the bottom of the bevel gear two. The rotating shaft drives the connecting part and the sealing plate to rotate, so that when the connector is inserted into the interface and rotated to lock, the sealing plate is opened simultaneously, allowing the interface to open and connect with the connector. Conversely, when it is opened, it automatically closes. By reversing the connector, the sealing plate automatically closes, thereby sealing the water remaining on the interface after the handwheel is turned and the valve is closed, preventing the water remaining on the interface from splashing after the water hose is disconnected.

Description

Technical Field

[0001] This invention discloses an indoor fire hydrant, and more particularly relates to an indoor water-saving fire hydrant. Background Technology

[0002] Indoor fire hydrants are interfaces in indoor pipe networks that supply water to the fire scene and are equipped with valves. They are fixed indoor fire protection facilities in factories, warehouses, high-rise buildings, public buildings, and ships, and are usually installed in fire hydrant boxes and used in conjunction with fire hoses and nozzles.

[0003] In existing technology, indoor fire hydrants are operated by connecting a hose connector to a valve interface, then turning a handwheel to open the valve to its maximum position to achieve water flow, directing the hose outlet towards the area requiring fire suppression. After use, the valve is closed by turning the handwheel, and the hose is then disconnected from the connector. However, regardless of the valve type, closing is not instantaneous; the outlet gradually narrows, as does the water flow. Furthermore, water not completely drained from the hose can flow back to the connector, causing overflow and spillage onto the hydrant or even outside it. The water inside the hydrant is generally not finely filtered and contains many impurities, requiring cleaning. Forgetting to clean it can lead to slippery surfaces for pedestrians and leave residue on floors or walls that is difficult to clean. Therefore, this application proposes a new solution that concentrates the water flow when closing and disconnecting the connector, preventing outward spraying and affecting the surrounding area. Summary of the Invention

[0004] The purpose of this invention is to provide an indoor water-saving fire hydrant in order to solve the above-mentioned problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an indoor water-saving fire hydrant, comprising a valve body and a handwheel, wherein the valve body is provided with an interface, and the valve body is provided with a connector connected to the interface, the interface comprising an inner ring and an outer ring, wherein a slot for accommodating the connector is provided between the inner ring and the outer ring, a sealing plate for sealing the interface and collecting residual water is rotatably connected to the inner ring, a rotating shaft is snapped onto the sealing plate, a support block for supporting the rotating shaft is provided on the inner ring, a connecting part is provided between the sealing plate and the rotating shaft, a bevel gear one is snapped onto the side of the rotating shaft, a bevel gear two meshing with the bevel gear one is rotatably connected to the inner ring, a transmission wheel is snapped onto the bottom of the bevel gear two, a drive wheel meshing with the transmission wheel is rotatably connected to the inner ring, an extension part for embedding the slot is provided on the extension part, a push block one for pushing the drive wheel to rotate is provided on the extension part, an abutting block one abutting against the push block one is provided on the drive wheel, an inflatable sealing bag is provided on the sealing plate, and an adjustment component for driving the sealing bag to expand and deflate is provided between the interface and the connector.

[0006] Preferably, the adjusting component includes an air storage bag disposed in a slot, the air storage bag and the inner ring having a communicating conduit, the bottom of the connecting part communicating with a sealing bag, the connecting part having an exhaust port connected to the conduit, the inner ring having a blocking block at the connecting part for blocking and sealing the exhaust port, the slot having a rotating component at the upper end of the air storage bag, and the rotating component having a squeezing block for pushing and squeezing the air storage bag.

[0007] Preferably, the extension is provided with a second pushing block for pushing the rotating member to rotate, and the rotating member is provided with a second abutting block that abuts against the second pushing block. The first pushing block abuts against the first abutting block first, and the second pushing block abuts against the second abutting block after the first pushing block has pushed the first abutting block. The first abutting block is symmetrically provided with a third abutting block, and a groove for accommodating the first pushing block is formed between the first abutting block and the third abutting block.

[0008] Preferably, the inner ring is provided with a limiting block for blocking the abutment block one on the moving path of the abutment block one. The abutment block one and the limiting block abut against the sealing plate to complete the rotation. A spring one is provided between the push block one and the extension part, and the abutment surface of the push block one and the abutment block one is an arc surface. The elastic force of the spring one is greater than the weight of the drive wheel and the abutment block one, and less than the blocking force of the limiting block.

[0009] Preferably, a torsion spring is provided between the rotating component and the outer ring to push the rotating component to reset, and the rotating component is in a normal state to drive the extrusion block to fit against the gas storage bag and extrude the gas storage bag.

[0010] Preferably, the connector is slidably connected to a limiting plate for preventing the sealing plate from being rotated and erected, and a connecting rod is rotatably connected to the connector. One end of the connecting rod is rotatably connected to the limiting plate, and a pull rod for pushing the connecting rod to rotate is slidably connected to the outer ring of the connector. The pull rod is rotatably connected to the end of the connecting rod away from the limiting plate.

[0011] Preferably, the connecting rod and the joint are provided with a spring to push the connecting rod to rotate at the rotatable connection point, the outer ring is provided with a groove to accommodate the insertion of the pull rod, the end of the groove is provided with a fixing block to push the pull rod to move upward, and the surface of the fixing block communicating with the groove is an inclined surface, and the joint is provided with a cover for sealing.

[0012] Preferably, the outer ring is slidably connected with a plug for embedding in the groove, the plug being located opposite the groove after the abutment block and the limiting block abut against each other.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] Firstly, when using this device, the connector with the water hose needs to be connected to the interface. The extension of the connector is inserted into the slot, and the push block on the extension abuts against the abutting block. The push block pushes the abutting block, causing the drive wheel to rotate synchronously. The internal teeth of the transmission wheel drive the meshing transmission wheel to rotate, which in turn drives the coaxially engaged bevel gear two to rotate synchronously. The bevel gear two then drives the meshing bevel gear one to rotate, which in turn drives the engaged rotating shaft to rotate. The rotating shaft drives the connecting part and the sealing plate to rotate. When the connector is inserted into the interface and rotates to lock, the sealing plate opens synchronously, allowing the interface to connect with the connector. Conversely, when it opens, it automatically closes. Reversing the connector causes the sealing plate to close automatically, thus sealing off the water remaining on the interface after the handwheel is turned and the valve is closed, preventing water from splashing out after the water hose is disconnected. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of an indoor water-saving fire hydrant. Figure 1 ;

[0016] Figure 2 A schematic diagram of the structure of an indoor water-saving fire hydrant. Figure 2 ;

[0017] Figure 3 A schematic diagram of the internal structure of an indoor water-saving fire hydrant interface and connector connection. Figure 1 ;

[0018] Figure 4 A schematic diagram of the internal structure of an indoor water-saving fire hydrant interface and connector connection. Figure 2 ;

[0019] Figure 5 for Figure 3 A magnified view of a portion at point A;

[0020] Figure 6 This is a partial structural diagram of an indoor water-saving fire hydrant interface;

[0021] Figure 7 This is a partial structural diagram of an indoor water-saving fire hydrant connector.

[0022] Reference numerals: 1. Valve body; 2. Handwheel; 3. Interface; 4. Connector; 5. Inner ring; 6. Outer ring; 7. Slot; 8. Sealing plate; 9. Rotating shaft; 10. Support block; 11. Connecting part; 12. Bevel gear one; 13. Bevel gear two; 14. Transmission wheel; 15. Drive wheel; 16. Extension part; 17. Pushing block one; 18. Abutting block one; 19. Sealing bag; 20. Air storage bag; 21. Exhaust port; 22. Blocking block; 23. Rotating part; 24. Pressing block; 25. Pushing block two; 26. Abutting block two; 27. Abutting block three; 28. Groove; 29. ​​Limiting block; 30. Spring one; 31. Torsion spring; 32. Limiting plate; 33. Connecting rod; 34. Pull rod; 35. Spring leaf; 36. Slide groove; 37. Fixing block; 38. Cover; 39. Insert; 40. Conducting pipe. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. In this description, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Obviously, the described embodiments are only some embodiments of the present invention, 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.

[0024] An indoor water-saving fire hydrant, such as Figures 1-7As shown, the device includes a valve body 1 and a handwheel 2. The valve body 1 has an interface 3, and a connector 4 connects to the interface 3. The interface 3 includes an inner ring 5 and an outer ring 6. A slot 7 for accommodating the connector 4 is provided between the inner ring 5 and the outer ring 6. A sealing plate 8 for sealing the interface 3 and collecting residual water is rotatably connected to the inner ring 5. A rotating shaft 9 is engaged with the sealing plate 8. A support block 10 for supporting the rotating shaft 9 is provided on the inner ring 5. A connecting part 11 is provided between the sealing plate 8 and the rotating shaft 9. A bevel gear 12 is engaged on the side of the rotating shaft 9. A bevel gear 13 meshing with the bevel gear 12 is rotatably connected to the inner ring 5. A transmission wheel 14 is engaged at the bottom of the bevel gear 13. A drive wheel 15 meshing with the transmission wheel 14 is rotatably connected to the inner ring 5. The connector 4 has a slot for accommodating the connector 4. The extension 16 of the slot 7 is provided with a push block 17 for driving the drive wheel 15 to rotate. The drive wheel 15 is provided with an abutment block 18 that abuts against the push block 17. The sealing plate 8 is provided with an inflatable sealing bag 19. An adjustment component for expanding and deflating the sealing bag 19 is provided between the interface 3 and the connector 4. In the prior art, when it is necessary to use the fire hydrant to extinguish a fire, the connector 4 of the fire hose is aligned and connected with the interface 3 of the fire hydrant valve body 1 and locked. At this time, the hose is pulled out so that the water gun extends to the place where the fire needs to be extinguished. The handwheel 2 is turned to open the valve so that water can flow into the fire hose and be sprayed from the water gun for fire extinguishing. After use, the valve needs to be closed by reversing the handwheel 2, and the water flow will decrease and move closer to the connector. The inlet 3 will cause water to remain at the inlet 3. After the valve plate is closed and the water flow cannot enter, a lot of water will remain at the horizontal part of the inlet 3. At this time, if the water hose is disassembled by the connector 4, the residual water will easily spray onto the area around the fire hydrant and other places on the ground. With this device, the inlet 3 is normally sealed by the sealing plate 8. When in use, the extension 16 of the connector 4 is inserted into the slot 7, and the push block on the extension 16 abuts against the abutment block 18. At the same time, by rotating the connector 4, the extension 16 drives the drive wheel 15 to rotate through the push block 17. The drive wheel 15 drives the transmission wheel 14 to rotate. The rotation of the transmission wheel 14 drives the coaxially engaged bevel gear 13 to rotate synchronously. The rotation of the bevel gear 13... When in motion, the meshing bevel gear 12 rotates, causing the bevel gear 12 to rotate the engaged rotating shaft 9. The rotating shaft 9 then synchronously rotates the engaged connecting part 11 and the sealing plate 8, opening the sealing plate 8. After the connector 4 rotates and engages, the interface 3 and connector 4 become connected. This opening allows water to directly enter the connector 4 and the outlet. Conversely, when the connector 4 needs to be disassembled, rotating the connector 4 resets the sealing plate 8, closing the interface 3 and blocking it. This seals off the water at the interface 3, preventing water from spilling out of the connector 4 and causing water to remain between the connector 4 and the interface 3. Rotating the sealing plate 8 allows any remaining water at the connector 4 to flow into the interface 3.This reduces water residue at the four joints, minimizing water splashing during disassembly. This design allows residual water to be collected and sealed during assembly and disassembly, reducing water spray onto the surrounding area and floor, thus eliminating the need for cleaning and preventing water spillage that could obstruct movement.

[0025] The adjustment assembly includes an air storage bag 20 disposed in the slot 7, the air storage bag 20 and the inner ring 5 having a connecting pipe 40, the bottom of the connecting part 11 communicating with the sealing bag 19, the connecting part 11 having an exhaust port 21 connected to the connecting pipe 40, the inner ring 5 having a blocking block 22 at the connecting part 11 to block and seal the exhaust port 21, the slot 7 having a rotating part 23 at the upper end of the air storage bag 20, the rotating part 23 having a squeezing block 24 for pushing and squeezing the air storage bag 20, the extension part 16 having a pushing block 25 for pushing the rotating part 23 to rotate, the rotating part 23 having an abutting block 26 that abuts against the pushing block 25, and then the connector 4 and the interface 3 are connected, and the extension part 16 is inserted into the slot 7 and rotates while the pushing block 17 pushes the abutting block 18, so that the sealing plate 8 is driven to rotate from the horizontally sealed interface 3 state to the vertical state, and This causes the exhaust port 21 on the connecting part 11, which is connected to the air storage bag 20, to change position and rotate to be opposite to the guide pipe 40 on the inner ring 5. This connects the guide pipe 40 with the exhaust port 21. Then, after the first pushing block 17 pushes the first abutting block 18 a certain distance, the second pushing block 25 will abut against the second abutting block 26. As it continues to rotate, the second pushing block 25 will abut against the second abutting block 26, and the entire rotating part 23 will rotate. This causes the rotating part 23 to drive the squeezing block 24 to rotate synchronously, causing the squeezing block 24 to move and be misaligned with the air storage bag 20. The air storage bag 20, which has its own elasticity, will break free from its restraints and, like an airbag, reset and inhale. It will also draw out the gas in the sealed bag 19 along the guide pipe 40 and the exhaust port 21, causing the sealed bag 19 to shrink and move away from the interface 3, thereby reducing the obstruction and hindrance to the water flow.

[0026] Pushing block 17 first abuts against abutting block 18, and pushing block 25 abuts against abutting block 26 after pushing block 17 pushes abutting block 18. Abutting block 3 27 is symmetrically arranged on abutting block 18, and a groove 28 is formed between abutting block 18 and abutting block 3 27 to accommodate the insertion of pushing block 17. The inner ring 5 is provided with a limiting block 29 on the moving path of abutting block 18 to block abutting block 18. When abutting block 18 and limiting block 29 abut against the closing plate 8, rotation is completed, and pushing... A spring 30 is provided between block 17 and extension 16, and the contact surface of push block 17 and abutment block 18 is curved. The elastic force of spring 30 is greater than the weight of drive wheel 15 and abutment block 18, but less than the blocking force of limit block 29. When extension 16 is inserted into slot 7, push block 17 will first be inserted into groove 28 between abutment block 18 and abutment block 27, while push block 25 is in a position away from abutment block 26. By rotating connector 4 Then, the extension 16 rotates synchronously, and the first pushing block 17 and the second pushing block 25 move. The first pushing block 17 abuts against the first abutting block 18, and the first abutting block 18 drives the drive wheel 15 and the third abutting block 27 to move synchronously. When the first abutting block 18 is in contact with the limiting block 29, the second pushing block 25 also moves to abut against the second abutting block 26. At the same time, the closing plate 8 also rotates from a horizontal to a vertical state. At this time, the joint 4 continues to rotate, and the extension 16 rotates accordingly, but the inner... Since ring 5 cannot rotate, the limiting block 29 blocks the extension 16, which drives the push block 17 to abut against the abutment block 18 along the inclined surface and compresses the internal spring 30, causing the push block 17 to move backward and cancel the push against the abutment block 18. The push block 25 then abuts against the abutment block 26 and pushes the abutment block 26 to drive the rotating member 23, causing the compression block 24 to move away from the gas storage bag 20. At this time, the gas storage bag 20 can expand and suck away the gas in the conductive sealed bag 19.

[0027] A torsion spring 31 is provided between the rotating component 23 and the outer ring 6 to push the rotating component 23 back to its original position. Under normal conditions, the rotating component 23 drives the compression block 24 to fit against the air storage bag 20 and compresses the air storage bag 20. Conversely, during disassembly, the connector 4 is reversed, causing the second pushing block 25 to release its obstruction of the second abutment block 26. This allows the torsion spring 31 inside the rotating component 23 to push the rotating component 23 back to its original position, slowly moving it and driving the compression block 24 back to the air storage bag 20 and compressing the air storage bag 20. This causes the air storage bag 20 to compress and discharge the gas, which then re-enters the sealed bag 19, causing the sealed bag 19 to re-expand. At the same time, the first pushing block 17 on the extension 16 also rotates and moves back to the first abutment block 18, and is separated from the obstruction of the first abutment block 18 and is re-embedded into the groove 28 by the first spring 30. Block 18 and abutting block 3 27 abut together. At this time, after continuing to rotate, block 17 is pushed to abut against abutting block 3 27, and the drive wheel 15 is pushed to rotate and reset. At the same time, the transmission wheel 14 is driven to rotate bevel gear 12 and bevel gear 2 13, which controls the sealing plate 8 to rotate again and fit against the interface 3, sealing the interface 3. At the same time, the exhaust port 21 of the connecting part 11 rotates and fits against the blocking block 22, sealing the sealing bag 19 to prevent air leakage. Meanwhile, the sealing bag 19 is in an expanded state and fits against the adjacent sealing bag 19 and the sealing plate 8, which achieves a better sealing effect and better collision state to collect residual water and prevent water leakage from the interface 3. This setting ensures that when disassembly is required, the residual water at the interface 3 will not leak out or splash around, eliminating the need for special cleaning, reducing trouble, and avoiding the situation where residual water is splashed on the ground and forgotten to be cleaned, which may affect pedestrians.

[0028] A limiting plate 32 is slidably connected to the connector 4 to prevent the closing plate 8 from rotating and standing upright. A connecting rod 33 is rotatably connected to the connector 4, with one end of the connecting rod 33 rotatably connected to the limiting plate 32. A pull rod 34 for pushing the connecting rod 33 to rotate is slidably connected to the outer ring 6 of the connector 4, and the pull rod 34 is rotatably connected to the end of the connecting rod 33 away from the limiting plate 32. A spring 35 is provided at the rotatable connection between the connecting rod 33 and the connector 4 to push the connecting rod 33 to rotate. A groove 36 is provided on the outer ring 6 to accommodate the insertion of the pull rod 34. A fixing block 37 is provided at the end of the groove 36 to push the pull rod 34 upward, and the surface of the fixing block 37 communicating with the groove 36 is an inclined surface. A cover 38 for sealing is provided outside the connector 4. Finally, when the connector 4 and the extension 16 of the interface 3 are inserted into the slot 7, the pull rod 34 on the connector 4 is also inserted into the groove 36. When the connector 4 rotates, it will first drive the pull rod 34 to move along the groove 36, waiting for the closing plate 8 to... After rotating longitudinally, the pull rod 34 moves to the fixed block 37 and moves upward along the cross section of the fixed block 37, pushed upward by the fixed block 37. The upper end of the pull rod 34 drives the rotating connecting rod 33 to move upward. Since the connecting rod 33 can only rotate, after being pushed upward, one end of the connecting rod 33 and the pull rod 34 moves upward, while the other end moves downward. This causes the end of the connecting rod 33 away from the pull rod 34 to drive the limiting plate 32 downward, and causes the limiting plate 32 to pass through the joint 4 and continue to block and restrict the longitudinally rotated sealing plate 8, preventing the sealing plate 8 from moving downward under the impact of the opening water flow. The length of the slide groove 36 ensures that the limiting plate 32 moves downward to block the sealing plate 8 after it is in a longitudinal state, avoiding the situation of mutual blocking and jamming. Finally, the cover 38 seals and blocks the upper part of the joint 4, and the water outlet is connected, and the gaps between adjacent parts are sealed with rubber such as sealing strips to prevent leakage. A plug 39 for embedding in the groove 28 is slidably connected to the outer ring 6. The plug 39 is located opposite the groove 28 after the abutment block 18 and the limiting block 29 abut against each other. If water needs to be used when the connector 4 and the water outlet are not connected, the abutment block 18 and the abutment block 26 on the drive wheel 15 can be manually pushed until they are opposite the plug 39. By manually pushing the plug 39 out and embedding it into the groove 28, the drive wheel 15 is restricted, thus preventing the sealing plate 8 from becoming loose and avoiding the situation where opening without the connector 4 would cause the sealing plate 8 to close again and block the water flow. This design ensures that it can be used even in special circumstances and prevents the sealing plate from becoming unusable.

[0029] Finally, by connecting the connector 4 and interface 3 as described above, one-button drive can be achieved during rotation. Rotation controls the opening of the sealing plate 8, while simultaneously deflating it to prevent the expanding sealing bag 19 from obstructing the water flow and causing excessive impact that could damage the sealing plate 8 and sealing bag 19. Secondly, rotation causes the limiting plate 32 on the connector 4 to move subsequently, restricting the sealing plate 8 and ensuring its stability. This one-button drive and one-button closing mechanism is simple, convenient, and quick, requiring no additional operation. Under normal connection and use, it can enhance the practicality of the fire hydrant connector 4 and interface 3, reduce hassle, eliminate unnecessary cleaning and manual labor, and increase convenience.

[0030] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A water-saving indoor fire hydrant, comprising a valve body (1) and a hand wheel (2), the valve body (1) being provided with an interface (3), and the valve body (1) being externally provided with a connector (4) connected with the interface (3), characterized in that: The interface (3) comprises an inner ring (5) and an outer ring (6), a clamping groove (7) is arranged between the inner ring (5) and the outer ring (6) and is used for accommodating the embedded connector (4), a closing plate (8) is rotatably connected to the inner ring (5) and is used for closing the interface (3) and collecting residual water, a rotating shaft (9) is clamped to the closing plate (8), a supporting block (10) is arranged on the inner ring (5) and is used for supporting the rotating shaft (9), a connecting part (11) is arranged between the closing plate (8) and the rotating shaft (9), a bevel gear one (12) is clamped to the side of the rotating shaft (9), a bevel gear two (13) is rotatably connected to the inner ring (5) and is engaged with the bevel gear one (12), a transmission wheel (14) is clamped to the bottom of the bevel gear two (13), a driving wheel (15) is rotatably connected to the inner ring (5) and is engaged with the transmission wheel (14), an extension part (16) is arranged on the connector (4) and is embedded in the clamping groove (7), a pushing block one (17) is arranged on the extension part (16) and is used for pushing the driving wheel (15) to rotate, an abutting block one (18) is arranged on the driving wheel and is abutted with the pushing block one (17), a sealed bag (19) is arranged on the closing plate (8) and is inflated, and an adjusting assembly is arranged between the interface (3) and the connector (4) and is used for driving the sealed bag (19) to expand and deflate; The adjusting assembly comprises a gas storage bag (20) arranged in the clamping groove (7), the gas storage bag (20) is communicated with the inner ring (5) through a communication pipeline (40), the bottom of the connecting part (11) is communicated with the sealed bag (19), an exhaust port (21) is arranged on the connecting part (11) and is connected with the communication pipeline (40), a blocking block (22) is arranged on the inner ring (5) at the connecting part (11) and is used for blocking and closing the exhaust port (21), a rotating part (23) is arranged on the upper end of the gas storage bag (20) in the clamping groove (7), and an extruding block (24) is arranged on the rotating part (23) and is used for extruding and pressing the gas storage bag (20); A pushing block two (25) is arranged on the extension part (16) and is used for pushing the rotating part (23) to rotate, an abutting block two (26) is arranged on the rotating part (23) and is abutted with the pushing block two (25), the pushing block one (17) is first abutted with the abutting block one (18), and the pushing block two (25) is abutted with the abutting block two (26) after the pushing block one (17) pushes the abutting block one (18) completely, an abutting block three (27) is arranged on one side of the abutting block one (18), and a groove (28) is formed between the abutting block one (18) and the abutting block three (27) and is used for accommodating the embedded pushing block one (17); A limiting block (29) is arranged on the inner ring (5) in the moving path of the abutting block one (18) and is used for blocking the abutting block one (18), the closing plate (8) is rotated completely when the abutting block one (18) is abutted with the limiting block (29), a spring one (30) is arranged between the pushing block one (17) and the extension part (16), and the abutting surface of the pushing block one (17) and the abutting block one (18) is an arc surface.

2. A water saving indoor hydrant as claimed in claim 1 wherein: The rotating member (23) and the outer ring (6) are provided with a torsion spring (31) for pushing the rotating member (23) to reset, and the rotating member (23) is in a normal state and drives the pressing block (24) to adhere to the gas storage bag (20) and press the gas storage bag (20).

3. A water saving indoor fire hydrant as claimed in claim 1, wherein: The joint (4) is slidably connected with a limiting plate (32) for blocking the closed plate (8) after being rotated and erected, the joint (4) is rotatably connected with a connecting rod (33), one end of the connecting rod (33) is rotatably connected with the limiting plate (32), and the joint (4) is slidably connected with a pull rod (34) for pushing the connecting rod (33) to rotate, and the pull rod (34) is rotatably connected with one end of the connecting rod (33) away from the limiting plate (32).

4. A water saving indoor hydrant according to claim 3, wherein: The connecting rod (33) and the joint (4) are rotatably connected with a spring leaf (35) for pushing the connecting rod (33) to rotate, the outer ring (6) is provided with a sliding groove (36) for accommodating the pull rod (34) to be embedded, the sliding groove (36) is provided at the end with a fixed block (37) for pushing the pull rod (34) to move upwards, and the surface of the fixed block (37) communicated with the sliding groove (36) is an inclined surface, and the joint (4) is externally provided with a cover (38) for closing.

5. A water saving indoor hydrant as defined in claim 1, wherein: The outer ring (6) is slidably connected with an insert (39) for being embedded in the groove (28), and the insert (39) is located at the opposite position of the groove (28) after the abutting block (18) and the limiting block (29) abut.

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