A fixed indoor fire hydrant

Abstract

The present application relates to the technical field of fire hydrants, and specifically discloses a fixed indoor fire hydrant, including a fire hydrant body, a water supply interface fixed on the fire hydrant body, and a water supply pipe connected to the bottom of the fire hydrant body, and also includes: a screw that can be rotatably arranged in the fire hydrant body; a pressure generating assembly arranged in the inner cavity of the fire hydrant body; a first plugging piece that can movably abut against the bottom end of the inner cavity of the fire hydrant body; a second plugging piece that is rotatably connected to the bottom end of the screw and can movably abut against the top end of the water supply pipe; a cleaning treatment assembly that is fixedly arranged in the inner wall of the fire hydrant body; a spring sleeve that is arranged on the outer wall of the screw; a top plate that is fixedly arranged at the top end of the pressure generating assembly, and the upper half of the screw is screwed to the inside of the top plate. The main purpose of the present invention is to improve the sealing performance and ensure the reliability of the internal sealing structure of the fire hydrant.

Description

Technical Field

[0001] The invention relates to the technical field of fire hydrants, in particular to a fixed indoor fire hydrant. Background Art

[0002] At present, indoor fire hydrants are widely used in fire protection systems of buildings to provide timely and effective water sources to extinguish fires; however, traditional indoor fire hydrants are prone to poor sealing after long-term use, resulting in leakage of fire water, which not only wastes water resources but may also affect the fire extinguishing effect at critical moments; in addition, external dust and impurities can easily enter the interior of the fire hydrant, causing aging and failure of the sealing structure, thereby further exacerbating the risk of leakage; the existing fire hydrant design lacks effective improvements in sealing performance and reliability of internal sealing structures, and cannot meet the needs of modern buildings for efficient and reliable fire-fighting equipment. Summary of the invention

[0003] The embodiment of the present application provides a fixed indoor fire hydrant, the main purpose of which is to improve the sealing performance and ensure the reliability of the internal sealing structure of the fire hydrant.

[0004] To achieve the above-mentioned purpose, the embodiment of the present application provides a fixed indoor fire hydrant, including a fire hydrant body, a water supply interface fixed on the fire hydrant body, and a water supply pipe connected to the bottom of the fire hydrant body, and also includes:

[0005] A screw rod rotatably disposed in the fire hydrant body and used to close the water supply pipe;

[0006] A pressure generating assembly is arranged in the inner cavity of the fire hydrant body, and the pressure generating assembly penetrates and is transmission-connected to the upper half of the screw;

[0007] A first blocking member, which is movably abutted against the bottom end of the inner cavity of the fire hydrant body;

[0008] A second blocking member is rotatably connected to the bottom end of the screw rod and is movably abutted against the top end of the water supply pipe and is located below the first blocking member;

[0009] A cleaning component is fixedly arranged in the inner wall of the fire hydrant body and is far away from the water supply interface, wherein the cleaning component comprises an output end, and the output end is located between the first blocking member and the second blocking member;

[0010] A spring, sleeved on the outer wall of the screw, the spring also abuts between the end surface of the first blocking member and the pressure generating assembly, and the spring is used to keep the first blocking member in a high-pressure blocking state or a low-pressure blocking state;

[0011] A top plate is fixedly arranged on the top of the pressure generating assembly, and the upper half of the screw is screwed to the inside of the top plate;

[0012] The screw rod can also synchronously drive the pressure generating assembly to compress air through its own displacement, and when the cleaning processing assembly receives the compressed air, the output end can provide a cleaning medium to the first blocking member and the second blocking member.

[0013] In a feasible embodiment, the pressure generating component includes: a sealing cylinder, which is fixedly arranged on the top of the fire hydrant body, the sealing cylinder is in a hollow state, and a one-way air inlet is provided on the sealing cylinder; a fixed block, which is fixedly sleeved on the outer wall of the screw; a piston disk, which is rotatably sleeved on the circumferential outer wall of the fixed block, and the piston disk can also be lifted and movably clamped in the inner cavity of the sealing cylinder, and the top of the spring abuts against the bottom end surface of the piston disk; a plurality of guide columns, which are fixedly arranged at the bottom end of the top plate in a vertical state and pass through the piston disk; an air supply pipe, one end of which is fixedly connected to the top of the inner cavity of the sealing cylinder, and the other end of the air supply pipe is connected to the cleaning and processing component.

[0014] In a feasible embodiment, the cleaning and processing component includes: a storage box, which is fixedly arranged in the inner cavity of the fire hydrant body, and the interior of the storage box is in a hollow state; a water inlet channel, which is opened on one side of the inner cavity of the storage box; for fire-fighting water to enter the storage box; a filter plate, which is fixedly arranged on the side of the top end of the water inlet channel, and is used to filter the fire-fighting water entering the inner cavity of the water inlet channel into clean water; an air pressure chamber, which is independently isolated at the top end of the inner cavity of the storage box, and the air pressure chamber is connected to the inner cavity of the sealing cylinder; a clean water chamber, which is fixedly opened in the inner cavity of the storage box below the filter plate; a through pipe, one end of which is connected to the air pressure chamber, the middle part of which passes through the filter plate, the other end of the through pipe extends to the inner cavity of the clean water chamber, and a first one-way air valve is also provided in the through pipe; a medium release pipe, one end of which is fixedly connected to the bottom end of the inner cavity of the clean water chamber, and the other end of the medium release pipe extends to the inner cavity between the first blocking member and the second blocking member.

[0015] In a feasible embodiment, the cleaning and processing component includes: a storage box, fixedly disposed in the inner cavity of the fire hydrant body; a filter plate, fixedly disposed on the air inlet end of the sealing cylinder; an air pressure chamber, opened in the inner cavity of the storage box; a medium release tube, one end of which is fixedly connected to the inner cavity of the air pressure chamber, and the other end of the medium release tube extends to the inner cavity between the first sealing member and the second sealing member.

[0016] In a feasible implementation manner, a second one-way gas valve is further provided on the gas supply pipe, and a one-way medium valve is further provided on one end of the medium release pipe close to the fire hydrant body.

[0017] In a feasible embodiment, the filter plate also includes: a frame; fixedly arranged at the top of the clean water chamber, and a plurality of equidistant support bars are provided in the frame; a filter screen, fixedly laid on the top of the frame and located in the water inlet channel; a plurality of leakage holes, opened on the frame and located between two adjacent support bars; sealing plates, each two of which are fixedly arranged on both sides of the support bars in a group, the sealing plates are made of rubber, and the sealing plates can seal the leakage holes located above the sealing plates.

[0018] In a feasible embodiment, the first blocking member and the second blocking member both include an inclined surface, and the position where the inclined surface contacts the inner wall of the fire hydrant body corresponds to a position. A one-way travel switch is also provided on the inner wall of the inner cavity of the fire hydrant body between the first blocking member and the second blocking member, and the one-way travel switch is used to provide a start-stop signal for the first one-way air valve.

[0019] In a feasible implementation manner, the one-way travel switch is closer to the second blocking member than to the first blocking member.

[0020] The present application provides a fixed indoor fire hydrant, which adopts a double sealing structure of the upper second sealing piece and a pressure generating component, to achieve effective sealing of the fire hydrant under high pressure and low pressure conditions, prevent leakage of fire water, and improve the sealing performance. In addition, the cleaning processing component automatically cleans the sealing structure by releasing compressed air to drive the cleaning medium, effectively avoiding the accumulation of dust and impurities, maintaining the cleanliness and integrity of the sealing structure, and thus extending the service life of the fire hydrant. The improved setting of the screw not only achieves the precise closing and opening of the water supply pipe, but also provides power for the release of the cleaning medium by driving the pressure generating component to compress the air synchronously, thereby ensuring the cleanliness and reliability of the sealing structure during use. It can be seen that the present device improves the protective performance and operating efficiency of the fire hydrant, and can meet the demand for efficient and reliable fire-fighting equipment in modern buildings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic structural diagram of a fixed indoor fire hydrant provided in an embodiment of the present application is shown;

[0022] Figure 2 The three-dimensional cross-sectional structure diagram of the fixed indoor fire hydrant provided in the embodiment of the present application is shown. Figure 1 ;

[0023] Figure 3The three-dimensional cross-sectional structure diagram of the fixed indoor fire hydrant provided in the embodiment of the present application is shown. Figure 2 ;

[0024] Figure 4 Shows Figure 3 A magnified view of the local structure at point A;

[0025] Figure 5 A schematic diagram of a front cross-sectional structure of a fixed indoor fire hydrant provided in an embodiment of the present application is shown;

[0026] Figure 6 Shows Figure 5 A magnified view of the local structure at B in FIG.

[0027] Figure 7 A schematic diagram of the structure of a cleaning processing assembly provided in an embodiment of the present application is shown;

[0028] Figure 8 A schematic diagram of the structure of a piston disc provided in an embodiment of the present application is shown;

[0029] Fig. 9 A schematic diagram showing the position structure of a one-way travel switch provided in an embodiment of the present application is shown;

[0030] Fig.10 A schematic diagram of the structure of a second one-way gas valve provided in an embodiment of the present application is shown;

[0031] Fig.11 A schematic diagram of the structure of a one-way medium valve provided in an embodiment of the present application is shown;

[0032] Fig.12 A schematic structural diagram of a filter plate provided in an embodiment of the present application is shown.

[0033] In the figure: 1. fire hydrant body, 2. water supply interface, 3. water supply pipe, 4. turntable, 5. pressure generating assembly, 6. cleaning treatment assembly, 7. second blocking member, 8. first blocking member, 9. spring, 10. screw, 11. top plate, 12. one-way travel switch, 51. sealing cylinder, 52. fixing block, 53. piston disc, 54. guide column, 55. air supply pipe, 61. storage box, 62. water inlet channel, 63. filter plate, 64. air pressure chamber, 65. clean water chamber, 66. through pipe, 67. first one-way air valve, 68. medium release pipe, 551. second one-way air valve, 681. one-way medium valve, 631. frame, 632. filter net, 633. water leakage hole, 634. blocking piece. DETAILED DESCRIPTION

[0034] In order to better understand the technical solutions provided by the embodiments of this specification, the technical solutions of the embodiments of this specification are described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.

[0035] In this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or equipment. In the absence of more restrictions, the elements limited by the statement "comprise one..." do not exclude the existence of other identical elements in the process, method, article or equipment including the elements. The term "more than two" includes two or more than two situations.

[0036] Example 1

[0037] See also Figures 1 to 12 As shown, an embodiment of the present application provides a fixed indoor fire hydrant, including a fire hydrant body 1, a water supply interface 2 fixed on the fire hydrant body 1, and a water supply pipe 3 connected to the bottom of the fire hydrant body 1, wherein the water supply pipe 3 is connected to a nearby fire pump and a fire water source, such as a nearby river or lake, and the water supply interface 2 is used to connect a fire hose, and the fire hose can be locked on the water supply interface 2.

[0038] In addition, the device further comprises: a pressure generating assembly 5, a cleaning treatment assembly 6, a first plugging member 8, a second plugging member 7, a spring 9, a screw 10 and a top plate 11; the screw 10 can be rotatably arranged in the fire hydrant body 1 to close the water supply pipe 3; its closing process is the same as the existing fire hydrant operation process, the pressure generating assembly 5 is arranged in the inner cavity of the fire hydrant body 1, and the pressure generating assembly 5 penetrates and is transmission-connected to the upper half of the screw 10; therefore, when the staff rotates the screw 10 to open the second plugging member 7, the corresponding pressure generating assembly 5 can be driven to produce the effect of compressed air, and the fire water can be used. After use, the compressed air can be triggered to release and used as the flow power for the cleaning medium on the sealing structure; the first plugging piece 8 can be movably abutted against the bottom end of the inner cavity of the fire hydrant body 1. As one of the innovative structures of the present device, the first plugging piece 8 as a whole can serve as the second sealing structure of the fire hydrant, further preventing the fire water from being poorly sealed and leaking. In addition, the first plugging piece 8 is also used to prevent external dust and impurities from entering the second plugging piece 7, thereby protecting the surface of the sealing structure; the second plugging piece 7 is rotatably connected to the bottom end of the screw 10 and can be movably abutted against the water supply pipe. 3, and is located below the first blocking member 8. The lower blocking structure is similar to the blocking structure principle in the prior art. It realizes the corresponding lifting movement by rotating the turntable 4 to drive the screw 10 to rotate, thereby realizing the blocking effect of the water flow; the cleaning processing component 6 is fixedly arranged in the inner wall of the fire hydrant body 1 and is far away from the water supply interface 2. The cleaning processing component 6 includes an output end, which is located between the first blocking member 8 and the second blocking member 7, and can realize the cleaning process of the surface of the sealing structure by spraying a cleaning medium; the spring 9 is sleeved on the outer wall of the screw 10, and the spring 9 also abuts against Between the end face of the first sealing member 8 and the pressure generating assembly 5, the spring 9 is used to keep the first sealing member 8 in a high-pressure sealing state or a low-pressure sealing state, and the high-pressure sealing state and the low-pressure sealing state correspond to the two usage states of sealing and water flow release respectively; the top plate 11 is fixedly arranged on the top of the pressure generating assembly 5, and the upper half of the screw 10 is screwed to the inside of the top plate 11; wherein the screw 10 can also synchronously drive the pressure generating assembly 5 to compress air through its own displacement, and when the cleaning processing assembly 6 receives the compressed air, the output end can provide cleaning medium to the first sealing member 8 and the second sealing member 7.

[0039] The fixed indoor fire hydrant provided by the present application can be used for fire prevention and firefighting in buildings. In actual use, the screw 10 is rotated to close the water supply pipe 3, driving the second plugging piece 7 to descend, and at the same time changing the position of the pressure generating assembly 5 to move it downward and compress the spring 9, so that the first plugging piece 8 is in a high-pressure plugging state to achieve double sealing. When fire-fighting water is needed, the screw 10 is rotated in the opposite direction to drive the second plugging piece 7 to move up and open the water supply pipe 3, and the pressure generating assembly 5 is synchronously moved up to reduce the pressure on the spring 9. The second plugging piece 7 is in a low-pressure state. Under the action of the water pressure in the water supply pipe 3, the fire-fighting water rushes out of the fire hydrant body 1 for fire extinguishing. After use and before the first plugging piece 8 and the second plugging piece 7 are completely sealed in the waterway, the compressed air triggers the release to push the output end of the cleaning treatment assembly 6 to provide a cleaning medium to clean the surface of the sealing structure to the first plugging piece 8 and the second plugging piece 7. Therefore, the device improves the sealing performance of the fire hydrant, prevents the leakage of fire-fighting water and the entry of dust and impurities, and can automatically clean the sealing structure to extend the service life of the fire hydrant.

[0040] See also Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 8 and Fig.10 As shown, in some examples, further, the pressure generating assembly 5 includes: a sealing cylinder 51, a fixed block 52, a piston disc 53, a plurality of guide columns 54 and an air supply pipe 55; the sealing cylinder 51 is fixedly arranged at the top end of the fire hydrant body 1, the sealing cylinder 51 is in a cavity state, and a one-way air inlet is provided on the sealing cylinder 51; the fixed block 52 is fixedly sleeved on the outer wall of the screw 10; the piston disc 53 is rotatably sleeved on the circumferential outer wall of the fixed block 52, and the piston disc 53 can also be lifted and movably clamped in the inner cavity of the sealing cylinder 51, and the top end of the spring 9 abuts against the bottom end face of the piston disc 53; a plurality of guide columns 54 are fixedly arranged at the bottom end of the top plate 11 in a vertical state, and pass through the piston disc 53; one end of the air supply pipe 55 is fixedly connected to the top end of the inner cavity of the sealing cylinder 51, and the other end of the air supply pipe 55 is connected to the cleaning processing assembly 6.

[0041] In this example, the pressure generating assembly 5 realizes an efficient air compression function; the sealing cylinder 51 is fixed at the top of the fire hydrant body 1 and forms a cavity, which serves to accommodate the piston disc 53 and provide a compression space; the fixing block 52 is firmly mounted on the outer wall of the screw 10, and the piston disc 53 can move up and down in the inner cavity of the sealing cylinder 51 following the rotation of the fixing block 52 and the screw 10; the guide column 54 is vertically fixed to the bottom end of the top plate 11 to ensure that the piston disc 53 maintains stability and directional movement during the movement; the top end of the spring 9 abuts against the bottom of the piston disc 53, and as a pressure-applying component to the first sealing member 8, the piston disc 53 reduces the pressure on the spring 9 when following the screw 10 to rise, and vice versa, it applies pressure to the spring 9 and finally acts on the first sealing member 8; the air supply pipe 55 is responsible for transporting compressed air from the sealing cylinder 51 to the cleaning treatment assembly 6, and realizing one-way flow of air through the one-way air inlet.

[0042] During operation, when the screw 10 is rotated, the fixing block 52 moves accordingly, driving the piston disc 53 to move up and down in the inner cavity of the sealing cylinder 51. When the piston disc 53 moves downward, air enters the inner cavity of the sealing cylinder 51 through the one-way air inlet, and is compressed during the upward movement of the piston disc 53. The high-pressure air is transported to the cleaning processing assembly 6 through the air supply pipe 55 for storage, and is finally used to clean the surface of the sealing structure, thereby maintaining the sealing performance and clean state of the fire hydrant.

[0043] See also Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Fig.11 and Fig.12As shown, in some examples, further, the cleaning treatment component 6 includes: a storage box 61, a water inlet channel 62, a filter plate 63, an air pressure chamber 64, a clean water chamber 65, a through pipe 66, a first one-way air valve 67 and a medium release pipe 68; the storage box 61 is fixedly arranged in the inner cavity of the fire hydrant body 1, and the interior of the storage box 61 is a cavity state; the water inlet channel 62 is opened on one side of the inner cavity of the storage box 61; the fire-fighting water enters the storage box 61; the filter plate 63 is fixedly arranged on the top side of the water inlet channel 62, and is used to filter the fire-fighting water entering the inner cavity of the water inlet channel 62 into clean water. Clean water; the air pressure chamber 64 is independently isolated at the top of the inner cavity of the storage box 61, and the air pressure chamber 64 is connected to the inner cavity of the sealing tube 51; the clean water chamber 65 is fixedly opened in the inner cavity of the storage box 61 below the filter plate 63; one end of the through pipe 66 is connected to the air pressure chamber 64, and the middle part passes through the filter plate 63, and the other end of the through pipe 66 extends to the inner cavity of the clean water chamber 65, and a first one-way air valve 67 is also provided in the through pipe 66; one end of the medium release pipe 68 is fixedly connected to the inner cavity bottom end of the clean water chamber 65, and the other end of the medium release pipe 68 extends to the inner cavity between the first blocking member 8 and the second blocking member 7.

[0044] In this example, the cleaning processing component 6 is used to realize the automatic cleaning function of the fire hydrant sealing structure. The storage box 61 is fixed in the inner cavity of the fire hydrant body 1 as a storage and processing component for the cleaning medium. The interior is divided into two parts: an independent air pressure chamber 64 and a clean water chamber 65. When the fire water enters the storage box 61 through the water inlet channel 62, it is first filtered by the filter plate 63, and is stored as clean water after removing impurities. The air pressure chamber 64 is connected to the sealing cylinder 51, receives the compressed air generated by the pressure generating component 5, and transports it to the clean water chamber 65 through the through pipe 66. A first one-way air valve 67 is provided in the through pipe 66 to ensure that the compressed air can only flow in one direction to prevent the backflow from affecting the system. When the compressed air enters the clean water chamber 65, the pressure generated drives the clean water through the medium release pipe 68, and finally sprays it into the inner cavity between the first sealing member 8 and the second sealing member 7 to achieve the cleaning of the sealing surface.

[0045] During the entire working process, when the fire-fighting water enters the clean water chamber 65 in the storage box 61 through the water inlet channel 62, it is first filtered by the filter plate 63 to remove impurities and is stored in the clean water chamber 65. As the pressure generating assembly 5 operates, compressed air enters the clean water chamber 65 through the through pipe 66, pushing the clean water through the medium release pipe 68 to clean the surface of the sealing structure and ensure the sealing performance. Therefore, in this example, through filtering, compressed air drive and precise medium release, the automatic cleaning of the fire hydrant sealing structure is achieved, effectively preventing dust and impurities from accumulating on the surface of the sealing structure, further improving the sealing effect and extending the service life of the equipment, preventing water leakage, and reducing the damage of impurities to the sealing structure.

[0046] In some examples, the cleaning medium can also be air. When the cleaning medium is air, the cleaning processing component 6 includes: a storage box 61, a filter plate 63, an air pressure chamber 64 and a medium release tube 68; the storage box 61 is fixedly arranged in the inner cavity of the fire hydrant body 1; the filter plate 63 is fixedly arranged on the air inlet end of the sealing tube 51; the air pressure chamber 64 is opened in the inner cavity of the storage box 61; one end of the medium release tube 68 is fixedly connected to the inner cavity of the air pressure chamber 64, and the other end of the medium release tube 68 extends to the inner cavity between the first sealing member 8 and the second sealing member 7.

[0047] In this example, the cleaning processing component 6 realizes the automatic cleaning function of the fire hydrant sealing structure using air as the cleaning medium. Specifically, the storage box 61 is fixed in the inner cavity of the fire hydrant body 1, and is mainly used to collect and store the compressed air generated by the pressure generating component 5. The filter plate 63 is installed on the air inlet end of the sealing cylinder 51, and plays the role of filtering the air entering the air pressure chamber 64 to ensure that the air entering the storage box 61 is clean. The air pressure chamber 64 is arranged inside the storage box 61 for storing filtered compressed air. When the pressure generating component 5 generates compressed air, the air enters the air pressure chamber 64 through the air inlet end of the sealing cylinder 51 and is temporarily stored therein. Subsequently, the medium release pipe 68 transports the compressed air in the air pressure chamber 64 to the inner cavity between the first blocking member 8 and the second blocking member 7, and uses high-pressure air to clean the surface of the sealing structure.

[0048] In the actual working process, when the pressure generating assembly 5 is in operation, the compressed air first enters the air pressure chamber 64 through the filter plate 63 to ensure that no impurities enter the storage box 61. Finally, the air stored in the air pressure chamber 64 is transported to the space between the first blocking member 8 and the second blocking member 7 through the medium release pipe 68, and the dust and impurities on the surface of the sealing structure are removed by high-speed air flow to keep the sealing surface clean. This example uses the power of compressed air to achieve automatic cleaning of the internal sealing structure of the fire hydrant, effectively preventing the accumulation of dust and impurities, thereby improving the sealing performance, reducing the risk of leakage, and extending the service life of the equipment.

[0049] like Fig.10 and Fig.11 As shown, in some examples, further, a second one-way gas valve 551 is provided on the gas supply pipe 55 , and a one-way medium valve 681 is provided on one end of the medium release pipe 68 close to the fire hydrant body 1 .

[0050] In this example, the second one-way air valve 551 on the air supply pipe 55 and the one-way medium valve 681 in the medium release pipe 68 ensure the flow direction of air and water and the effectiveness of their functions; specifically, the second one-way air valve 551 is installed on the air supply pipe 55 to ensure that compressed air can only flow into the air pressure chamber 64 in one direction, preventing the air from flowing back to the pressure generating component 5, thereby stabilizing the air pressure in the air pressure chamber 64 and ensuring the subsequent cleaning process; in addition, the one-way medium valve 681 in the medium release pipe 68 is located at one end close to the fire hydrant body 1, and its main function is to prevent water or other media generated during the cleaning process from flowing back to the storage tank 61 or the air supply system to avoid contamination and damage to the internal structure; thereby protecting the internal components and keeping the system clean and stable.

[0051] like Fig.12 As shown, in some examples, further, the filter plate 63 also includes: a frame 631, a filter screen 632, a plurality of water leakage holes 633 and a sealing piece 634; the frame 631 is fixedly arranged at the top of the clean water chamber 65, and a plurality of equidistant support bars are arranged in the frame 631; the filter screen 632 is fixedly laid at the top of the frame 631 and is located in the water inlet channel 62; a plurality of water leakage holes 633 are opened on the frame 631 and are located between two adjacent support bars; the sealing pieces 634 are fixedly arranged on both sides of the support bars in groups of two, and the sealing pieces 634 are made of rubber, and the sealing pieces 634 can seal the water leakage holes 633 located above the sealing pieces 634.

[0052] In this example, the filter plate 63 ensures that the water flow in the clean water chamber 65 enters the medium release tube 68 in one direction, preventing the water flow from leaking from the filter plate 63 due to pressurization, thereby affecting the supply of the cleaning medium; the frame 631 is fixed to the top of the clean water chamber 65 and provides structural support through multiple internal support bars, and the filter screen 632 is laid on the top of the frame 631 to filter the water flow entering the clean water chamber 65, remove impurities and ensure the purity of the cleaning medium; the leakage holes 633 are located on the frame 631 and arranged between adjacent support bars to allow water to pass through, but a pair of sealing sheets 634 are provided above each leakage hole 633; ​​the sealing sheets 634 are made of rubber material and have good sealing performance. Their function is to seal the leakage holes 633 by deformation when the clean water chamber 65 is pressurized, thereby preventing the water flow from flowing back to the water inlet channel 62, ensuring that the water flow can only flow out in one direction through the medium release tube 68.

[0053] In actual operation, when the clean water chamber 65 is pressurized by compressed air, the water flow is pushed downward and enters the sealing structure through the medium release tube 68 for cleaning; at this time, the sealing piece 634 will be pressed against the leaking hole 633 due to the pressure, forming an effective seal to prevent the water flow from backflowing or leaking from the filter plate 63; in this way, the filter plate 63 not only plays the role of filtering the water flow, but also realizes one-way water inlet through the sealing function of the sealing piece 634, ensuring that the water flow in the clean water chamber 65 can smoothly enter the medium release tube 68 after pressurization, and will not leak from other positions; ensuring the effective supply of cleaning medium, and further improving the working efficiency of the cleaning treatment component 6 and the overall sealing performance of the fire hydrant.

[0054] like Figure 2 , Figure 3 , Figure 5 and Fig. 9 As shown, in some examples, further, the first blocking member 8 and the second blocking member 7 both include inclined surfaces, and the positions where the inclined surfaces contact the inner wall of the fire hydrant body 1 correspond to each other. A one-way travel switch 12 is also provided on the inner wall of the inner cavity of the fire hydrant body 1 between the first blocking member 8 and the second blocking member 7, and the one-way travel switch 12 is used to provide a start-stop signal for the first one-way air valve 67.

[0055] In this example, the inclined surface design of the first blocking piece 8 and the second blocking piece 7, and the setting of the one-way travel switch 12 are intended to optimize the sealing effect and air flow control of the fire hydrant; specifically, the first blocking piece 8 and the second blocking piece 7 respectively have inclined surfaces, which correspond to the contact surfaces of the inner wall of the fire hydrant body 1; the main function is to enhance the sealing performance, and the inclined surfaces can fit more closely to the inner wall of the fire hydrant body 1 under pressure, thereby effectively preventing water or air leakage, and making dust easy to slide off; in addition, a one-way travel switch 12 is provided on the inner wall of the inner cavity of the fire hydrant body 1 between the first blocking piece 8 and the second blocking piece 7; the function of the one-way travel switch 12 is to sense the movement state of the second blocking piece 7, and when the blocking piece reaches a specific position, the one-way travel switch 12 will provide a signal to control the start or close of the first one-way air valve 67.

[0056] In actual operation, when the screw 10 rotates to drive the second sealing member 7 or the first sealing member 8 to move, the inclined surface of the sealing member gradually contacts and seals the inner wall of the fire hydrant body 1; when the sealing member moves to the specified position, the one-way travel switch 12 is triggered, and a signal is sent to start or close the first one-way air valve 67; this mechanism ensures that compressed air will enter the clean water chamber 65 only when needed, and release the cleaning medium to the surface of the sealing structure; thereby improving the reliability and service life of the entire device.

[0057] like Figure 5 and Fig. 9As shown, in some examples, further, the one-way travel switch 12 is closer to the second blocking piece 7 relative to the first blocking piece 8, which helps to accurately control the start-up timing of the first one-way air valve 67. When the second blocking piece 7 moves close to the position to be sealed, the first blocking piece 8 is not completely in a high-pressure sealing state, and the second blocking piece 7 first triggers the one-way travel switch 12; the position of the one-way travel switch 12 is closer to the second blocking piece 7, so that the movement of the second blocking piece 7 will be monitored and controlled first; ensure that the signal of the one-way travel switch 12 is transmitted before the second blocking piece 7 is sealed, and the first one-way air valve 67 is started in time to ensure the cleaning timing of the cleaning medium, so that the cleaning effect becomes efficient.

[0058] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. A fixed indoor fire hydrant, comprising a fire hydrant body (1), a water supply interface (2) fixed on the fire hydrant body (1), and a water supply pipe (3) connected to the bottom of the fire hydrant body (1), characterized in that: Also includes: A screw (10) rotatably disposed in the fire hydrant body (1) and used to close the water supply pipe (3); A pressure generating assembly (5) is arranged in the inner cavity of the fire hydrant body (1), and the pressure generating assembly (5) penetrates and is drivingly connected to the upper half of the screw rod (10); A first blocking member (8) capable of movably abutting against the bottom end of the inner cavity of the fire hydrant body (1); A second blocking member (7) is rotatably connected to the bottom end of the screw rod (10), and is capable of movably abutting against the top end of the water supply pipe (3), and is located below the first blocking member (8); A cleaning component (6) is fixedly arranged in the inner wall of the fire hydrant body (1) and is away from the water supply interface (2), wherein the cleaning component (6) comprises an output end, wherein the output end is located between the first blocking member (8) and the second blocking member (7); a spring (9) sleeved on the outer wall of the screw rod (10), the spring (9) also abutting between the end surface of the first blocking member (8) and the pressure generating assembly (5), the spring (9) being used to keep the first blocking member (8) in a high-pressure blocking state or a low-pressure blocking state; A top plate (11) is fixedly mounted on the top of the pressure generating assembly (5), and the upper half of the screw rod (10) is screwed to the inside of the top plate (11); The screw (10) is also capable of synchronously driving the pressure generating component (5) to compress air through its own displacement, and when the cleaning processing component (6) receives the compressed air, the output end is capable of providing a cleaning medium to the first blocking member (8) and the second blocking member (7).

2. A fixed indoor fire hydrant according to claim 1, characterized in that: The pressure generating component (5) comprises: A sealing cylinder (51) is fixedly mounted on the top of the fire hydrant body (1); the sealing cylinder (51) is in a hollow state and is provided with a one-way air inlet; A fixed block (52) fixedly sleeved on the outer wall of the screw rod (10); A piston disc (53) is rotatably sleeved on the peripheral outer wall of the fixed block (52); the piston disc (53) is also movable and can be lifted and lowered to be clamped in the inner cavity of the sealing cylinder (51); the top end of the spring (9) abuts against the bottom end surface of the piston disc (53); A plurality of guide columns (54) are fixedly disposed vertically at the bottom end of the top plate (11) and penetrate the piston plate (53); An air supply pipe (55) has one end fixedly connected to the top end of the inner cavity of the sealing cylinder (51), and the other end of the air supply pipe (55) is connected to the cleaning processing component (6).

3. A fixed indoor fire hydrant according to claim 2, characterized in that: The cleaning component (6) comprises: A storage box (61) is fixedly arranged in the inner cavity of the fire hydrant body (1), and the interior of the storage box (61) is in a hollow state; A water inlet channel (62) is provided on one side of the inner cavity of the storage box (61) for allowing fire-fighting water to enter the storage box (61); A filter plate (63) is fixedly arranged on the side of the top end of the water inlet channel (62) and is used to filter the fire-fighting water entering the inner cavity of the water inlet channel (62) into clean water; An air pressure chamber (64) is independently isolated at the top of the inner cavity of the storage box (61), and the air pressure chamber (64) is in communication with the inner cavity of the sealing cylinder (51); A clean water chamber (65) fixedly provided in the inner chamber of the storage box (61) below the filter plate (63); A through pipe (66), one end of which is connected to the air pressure chamber (64), the middle portion of which passes through the filter plate (63), the other end of which extends into the inner cavity of the clean water chamber (65), and a first one-way air valve (67) is also provided in the through pipe (66); A medium release tube (68) has one end fixedly connected to the bottom end of the inner cavity of the clean water cavity (65), and the other end of the medium release tube (68) extends into the inner cavity between the first blocking member (8) and the second blocking member (7).

4. A fixed indoor fire hydrant according to claim 2, characterized in that: The cleaning component (6) comprises: A storage box (61) fixedly disposed in the inner cavity of the fire hydrant body (1); A filter plate (63) is fixedly mounted on the air inlet end of the sealing cylinder (51); An air pressure chamber (64) is provided in the inner cavity of the storage box (61); A medium release tube (68) has one end fixedly connected to the inner cavity of the air pressure cavity (64), and the other end of the medium release tube (68) extends to the inner cavity between the first blocking member (8) and the second blocking member (7).

5. A fixed indoor fire hydrant according to claim 3, characterized in that: The air supply pipe (55) is also provided with a second one-way air valve, and A one-way medium valve is also provided on one end of the medium release pipe (68) close to the fire hydrant body (1).

6. A fixed indoor fire hydrant according to claim 3, characterized in that: The filter plate (63) further comprises: A frame (631) is fixedly mounted on the top of the clean water chamber (65), wherein a plurality of equidistant support bars are arranged in the frame (631); A filter screen (632) is fixedly laid on the top of the frame (631) and is located in the water inlet channel (62); A plurality of water leakage holes (633) are provided on the frame (631) and are located between two adjacent support bars; The blocking pieces (634) are fixedly arranged on both sides of the support strip in groups of two each. The blocking pieces (634) are made of rubber material. The blocking pieces (634) can seal the water leakage hole (633) located above the blocking pieces (634).

7. A fixed indoor fire hydrant according to claim 3, characterized in that: The first blocking member (8) and the second blocking member (7) both include an inclined surface, and the position where the inclined surface contacts the inner wall of the fire hydrant body (1) corresponds to a position. A one-way travel switch (12) is also provided on the inner wall of the inner cavity of the fire hydrant body (1) between the first blocking member (8) and the second blocking member (7), and the one-way travel switch (12) is used to provide a start-stop signal for the first one-way gas valve (67).

8. A fixed indoor fire hydrant according to claim 7, characterized in that: The one-way travel switch (12) is closer to the second blocking member (7) than the first blocking member (8).

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