Building emergency fire extinguishing system

Abstract

The invention relates to the technical field of emergency fire extinguishing systems, in particular to a building emergency fire extinguishing system. The problem that in the prior art, a manual switch valve of a fire fighting system is difficult to reset is solved, and the practicability of equipment is improved. A liquid outlet of the fire-fighting tank body is connected with a control valve, a control cavity is formed in the control valve, the control cavity is connected with a liquid inlet pipe and a liquid outlet pipe, a valve element is arranged between the liquid inlet pipe and the liquid outlet pipe, an electric control assembly is arranged in the control cavity, and an emergency button is arranged outside the control valve door. The control cavity is internally provided with a first control structure used for controlling the valve element through the emergency button to block the liquid inlet pipe and the liquid outlet pipe or to be away from and communicated with the liquid inlet pipe and the liquid outlet pipe. According to the embodiment, the design that a crashing bead is directly adopted in the prior art is replaced, resetting can be conducted through the first control structure after the valve is started through the emergency button, the crashing bead does not need to be detached and replaced, resetting of the emergency switch is more convenient, and high practicability is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of emergency fire fighting systems, and in particular to a building emergency fire fighting system. Background Art

[0002] Building emergency fire protection system refers to fire protection facilities and systems that are designed to ensure that buildings can respond quickly and effectively to emergency situations when fire or other emergencies occur. Its purpose is to ensure the safe evacuation of personnel, timely extinguishing of fires, safe isolation inside and outside the fire scene, and minimize the damage caused by fire to property and personnel.

[0003] In order to prevent power failures when a fire occurs, existing fire protection systems are equipped with breakable beads in the manual switch valve. When a fire occurs, the operator can manually open the fire protection system by breaking the breakable beads, thereby minimizing the damage caused by the fire.

[0004] Although this can achieve emergency firefighting during power outages, the following problems still exist: when the firefighting system is manually started, the breakable beads will be damaged and need to be replaced, and the replacement process is cumbersome, which increases the operating time of system maintenance. Summary of the invention

[0005] The present invention provides a building emergency fire fighting system, which solves the problem of difficulty in resetting a manual switch valve of a fire fighting system in the prior art and improves the practicability of the equipment.

[0006] The technical solution of the present invention is as follows: A building emergency fire fighting system, comprising a fire fighting tank, The liquid outlet of the fire fighting tank is connected to a control valve, a control chamber is arranged in the control valve, the control chamber is connected to a liquid inlet pipe and a liquid outlet pipe, a valve core is arranged between the liquid inlet pipe and the liquid outlet pipe, an electric control component is arranged in the control chamber, an emergency button is arranged outside the control valve, a first control structure for controlling the valve core to block the liquid inlet pipe and the liquid outlet pipe or to stay away from the connecting liquid inlet pipe and the liquid outlet pipe by the emergency button is arranged in the control chamber, and a second control structure for controlling the valve core to block the liquid inlet pipe and the liquid outlet pipe or to stay away from the connecting liquid inlet pipe and the liquid outlet pipe by the electric control component is also arranged in the control chamber.

[0007] Furthermore, a liquid guide hole is provided on the valve core, a first sliding rail is provided in the control chamber, the valve core is slidingly connected to the first sliding rail, the control chamber is slidingly connected to the valve core, the first sliding rail is provided with a liquid inlet hole near the liquid inlet pipe side, the first sliding rail is provided with a liquid outlet hole near the liquid outlet pipe side, the valve core is abutted against the liquid outlet hole and the liquid inlet hole at the same time, the liquid inlet hole and the liquid outlet hole are arranged on the movement trajectory of the liquid guide hole, a sliding rod is fixed on the valve core, the sliding rod is slidingly connected to the first sliding rail, a first limiting bolt is fixed to the end of the sliding rod, a first limiting spring is sleeved on the sliding rod, and both ends of the first limiting spring are respectively fixedly connected to the first sliding rail and the valve core.

[0008] Furthermore, the first control structure includes a first sliding rack, a second sliding rail is fixed in the control cavity, a first sliding groove is provided in the second sliding rail, the cross-section of the first sliding groove is a "convex"-shaped structure, the first sliding rack is slidingly connected to the first sliding groove, the valve core is arranged within the stroke of the first sliding rack, a sliding column is fixed at the end of the first sliding rack away from the valve core, a mounting plate is provided at the end of the control cavity away from the valve core, the sliding column is slidingly connected to the mounting plate, a second limiting bolt is also fixed to the end of the sliding column, a second limiting spring is sleeved on the sliding column, and the two ends of the second limiting spring are respectively fixedly connected to the second limiting bolt and the mounting plate.

[0009] Furthermore, a rotating shaft is rotatably connected in the control chamber, a first rotating gear is fixed on the rotating shaft, the first rotating gear is meshed with the first sliding rack, a ratchet is rotatably connected to the rotating shaft, a plurality of limit blocks are rotatably connected to the first rotating gear, one end of each of the limit blocks abuts against the ratchet, each of the limit blocks is also provided with a third limit spring, and both ends of the third limit spring are respectively fixedly connected to an end of the limit block away from the ratchet and the first rotating gear.

[0010] Furthermore, a second rotating gear is provided on the rotating shaft, and the second rotating gear is fixedly connected to the ratchet. The emergency button is slidingly connected to the control cavity. A second sliding rack is provided on the bottom side wall of the emergency button, and the second sliding rack is meshed with the second rotating gear. A reset cavity is also provided on the top of the control cavity, and a third limiting bolt is provided in the reset cavity, and the third limiting bolt is fixedly connected to the emergency button. A fourth limiting spring is also sleeved on the emergency button, and both ends of the fourth limiting spring are respectively fixedly connected to the bottom of the reset cavity and the third limiting bolt.

[0011] Furthermore, the valve core is provided with a second sliding groove near the end of the sliding rod, the first sliding rail is provided with a limiting hole, the second sliding groove is provided with a sliding hole near the side of the limiting hole, the second sliding groove is slidingly connected with a clamping block, the second sliding groove is provided with a fifth limiting spring, the two ends of the fifth limiting spring are respectively fixedly connected to the second sliding groove and the clamping block, and the clamping block is clamped with the limiting hole.

[0012] Furthermore, the second control structure includes a telescopic member, a fixed end of the telescopic member is fixedly connected to the control chamber, and a telescopic end of the telescopic member abuts against the valve core.

[0013] Furthermore, a limiting notch is provided on the side of the emergency button, a gap is provided between the second sliding rack and the second rotating gear, and when the telescopic member pushes the valve core to move, a gap is provided between the card block and the card slot, and the cross-section of the liquid guide hole is a strip-shaped structure.

[0014] Furthermore, the first sliding rack is provided with an abutment column near the valve core end, and a buffer layer is fixed to the end of the abutment column and the telescopic end of the telescopic member, and the buffer layer is made of rubber material.

[0015] Furthermore, the electric control component includes a temperature sensor and a smoke sensor, and both the temperature sensor and the smoke sensor are electrically connected to the telescopic member.

[0016] The working principle and beneficial effects of the present invention are: The working process of this embodiment is as follows: when a fire occurs without power failure, the temperature sensor and the smoke sensor sense the occurrence of a fire through the temperature and the smoke, and start to extend the telescopic member. The telescopic end of the telescopic member pushes the valve core to move, so that the liquid guide hole is connected to the liquid inlet hole and the liquid outlet hole, and the fire fighting system discharges the fire fighting liquid. After the temperature sensor and the smoke sensor detect that the fire has disappeared, the telescopic member is retracted. Under the action of the first limit spring, the valve core is reset, and the valve core blocks the liquid inlet hole and the liquid outlet hole, and the fire fighting liquid is not discharged. When a power failure occurs during a fire, the emergency button is pressed multiple times: when the emergency button is pressed, the second sliding rack on the emergency button drives the second rotating gear. Rotate, and driven by the ratchet, the first gear rotates and drives the first sliding rack to move toward the valve core; when the force on the emergency button stops, under the action of the third limit spring, the emergency button moves up and resets. At this time, due to the sliding connection between the limit block and the ratchet, the second gear will not drive the first gear to rotate. This is repeated many times, and the first sliding rack gradually approaches the valve core and drives the valve core to move, so that the liquid guide hole is aligned with the liquid inlet and the liquid outlet, the card block is stuck in the limit hole, and the fire-fighting fluid is discharged. When the fire disappears, the card block is pressed to make the card block disengage from the limit hole. Under the action of the first limit spring, the second limit spring and the fourth limit spring, the valve core is reset, and the fire-fighting fluid stops being discharged.

[0017] In this embodiment, a control valve is arranged on the fire fighting tank body, and an emergency button and an electric control component are arranged in the control valve. The opening and closing of the control valve are operated by the first control structure and the second control structure, which replaces the design of directly using breakable beads in the prior art. After the valve is started by the emergency button in this embodiment, it can be reset by the first control structure without disassembling and replacing the breakable beads. It is more convenient to reset the emergency switch and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] Figure 1 It is a structural schematic diagram of the prior art; Figure 2 Schematic diagram of the overall structure of this embodiment; Figure 3 Schematic diagram of the structure of the control valve in this embodiment; Figure 4 The internal structure of the control valve in this embodiment is shown in FIG. Figure 1 ; Figure 5 is a schematic diagram of the connection structure between the first rotating gear and the ratchet wheel in this embodiment; Figure 6 Schematic diagram of the internal structure of the valve core in this embodiment; Figure 7 The internal structure of the control valve in this embodiment is shown in FIG. Figure 2 ; Figure 8 Schematic diagram of the structure of the emergency button in this embodiment.

[0020] In the figure: 1. Fire tank; 11. Liquid outlet; 2. Control valve; 21. Liquid inlet pipe; 211. Liquid inlet hole; 22. Liquid outlet pipe; 221. Liquid outlet hole; 23. Reset chamber; 24. First sliding rail; 241. Limit hole; 25. Control chamber; 251. Second sliding rail; 2511. First sliding groove; 3. Emergency button; 31. Third limit bolt; 311. Fourth limit spring; 32. Second sliding rack; 33. Limit notch; 4. Mounting plate; 5. Valve core; 51. Sliding Shift rod; 511, first limit spring; 512, first limit bolt; 52, liquid guide hole; 53, second sliding groove; 54, block; 541, fifth limit spring; 6, telescopic member; 7, first sliding rack; 71, sliding column; 711, second limit spring; 712, second limit bolt; 72, abutment column; 721, buffer layer; 8, second rotating gear; 81, rotating shaft; 82, ratchet; 9, first rotating gear; 91, limit block; 92, third limit spring. DETAILED DESCRIPTION

[0021] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] like Figure 2~Figure 8 As shown, this embodiment proposes a building emergency fire protection system, and its structure includes a fire protection tank body 1. The control valve 2 in this embodiment is connected to the liquid outlet 11 of the fire protection tank body 1, the control chamber 25 is arranged in the control valve 2, the liquid inlet pipe 21 and the liquid outlet pipe 22 are both connected to the control chamber 25, the valve core 5 is arranged between the liquid inlet pipe 21 and the liquid outlet pipe 22, the electric control component is arranged in the control chamber 25, the emergency button 3 is arranged outside the control valve 2, and the first control structure is arranged in the control chamber 25, which is used to control the valve core 5 to block the liquid inlet pipe 21 and the liquid outlet pipe 22 through the emergency button 3, or to stay away from the liquid inlet pipe 21 and the liquid outlet pipe 22. The second control structure is arranged in the control chamber 25, which is used to control the valve core 5 to block the liquid inlet pipe 21 and the liquid outlet pipe 22 through the electric control component, or to stay away from the liquid inlet pipe 21 and the liquid outlet pipe 22. The electric control component used in this embodiment sends a fire signal through a smoke sensor and a temperature sensor, processes the signal through a single-chip microcomputer, and then opens and closes the control valve 2 to achieve the purpose of automatic fire extinguishing. When the electric control component is unable to send a fire signal due to a fire, the control valve 2 is directly opened and closed by controlling the emergency button 3.

[0023] The liquid guide hole 52 in this embodiment is arranged on the valve core 5, the first sliding rail 24 is arranged in the control chamber 25, the valve core 5 is slidingly connected to the first sliding rail 24, and the control chamber 25 is slidingly connected to the valve core 5, so as to ensure that the valve core 5 will not be displaced when moving. The liquid inlet hole 211 is arranged on the side of the first sliding rail 24 close to the liquid inlet pipe 21, and the liquid outlet hole 221 is arranged on the side of the first sliding rail 24 close to the liquid outlet pipe 22, and the valve core 5 is in contact with the liquid outlet hole 221 and the liquid inlet hole 211 at the same time. When the liquid guide hole 52 in the valve core 5 in this embodiment is not connected to the liquid outlet hole 221 and the liquid inlet hole 211, the valve core 5 blocks the liquid outlet hole 221 and the liquid inlet hole 211, and the fire-fighting liquid will not be discharged; when the liquid guide hole 52 is connected to the liquid outlet hole 221 and the liquid inlet hole 211, the fire-fighting liquid flows out through the liquid guide hole 52. The liquid inlet 211 and the liquid outlet 221 are arranged on the movement track of the liquid guide hole 52, the sliding rod 51 is fixedly arranged on the valve core 5, and the sliding rod 51 is slidingly connected with the first sliding rail 24. The first limit bolt 512 is fixedly arranged at the end of the sliding rod 51 to prevent the sliding rod 51 from being separated from the first sliding rail 24. The first limit spring 511 is sleeved on the sliding rod 51, and the two ends of the first limit spring 511 are fixedly connected with the first sliding rail 24 and the valve core 5 respectively. Under the action of the first limit spring 511, when the valve core 5 is not affected by other external forces, the liquid guide hole 52 in the valve core 5 is not connected with the liquid inlet 211 and the liquid outlet 221, and the control valve 2 remains in a closed state to prevent the leakage of the fire-fighting liquid.

[0024] The first control structure in this embodiment includes a first sliding rack 7, a second sliding rail 251 fixedly arranged in the control chamber 25, a first sliding groove 2511 arranged in the second sliding rail 251, and a cross section of the first sliding groove 2511 presents a "convex" structure, which is used to prevent the first sliding rack 7 from being separated from the first sliding groove 2511. The first sliding rack 7 is slidingly connected to the first sliding groove 2511, and the valve core 5 is arranged within the stroke of the first sliding rack 7. In this embodiment, the first sliding rack 7 abuts against the valve core 5 to push the valve core 5 to move, so as to achieve the purpose of controlling the valve core 5 to open or close the fire-fighting liquid. The sliding column 71 is fixedly arranged at the end of the first sliding rack 7 away from the valve core 5, the mounting plate 4 is arranged at the end of the control chamber 25 away from the valve core 5, the sliding column 71 is slidingly connected with the mounting plate 4, the second limiting bolt 712 is fixedly arranged at the end of the sliding column 71, the second limiting spring 711 is sleeved on the sliding column 71, and the two ends of the second limiting spring 711 are respectively fixedly connected with the second limiting bolt 712 and the mounting plate 4. The second limiting spring 711 used in this embodiment is to keep the first sliding rack 7 away from the valve core 5 when the first sliding rack 7 is not subjected to external force. Specifically, when the first sliding rack 7 is controlled to move due to erroneous operation, the second sliding rod 51 is automatically reset under the action of the second limiting spring 711.

[0025] The rotating shaft 81 in this embodiment is rotatably disposed in the control chamber 25, the first rotating gear 9 is fixedly disposed on the rotating shaft 81, the first rotating gear 9 is meshed with the first sliding rack 7, the ratchet 82 is rotatably disposed on the rotating shaft 81 and is rotatably connected, a plurality of limit blocks 91 are disposed on the first rotating gear 9, and one end of each limit block 91 abuts against the ratchet 82. A third limit spring 92 is disposed on each limit block 91, and both ends of the third limit spring 92 are respectively fixedly connected to one end of the limit block 91 away from the ratchet 82 and the first rotating gear 9, so as to ensure that the limit block 91 and the ratchet 82 remain in abutment. In this embodiment, the rotation of the first rotating gear 9 is controlled by the ratchet 82. When the ratchet 82 rotates clockwise as shown in the figure, the limit block 91 abuts against the ratchet 82, and the ratchet 82 drives the first rotating gear 9 to rotate, and drives the first sliding rack 7 to move toward the valve core 5. When the ratchet 82 rotates counterclockwise, the limit block 91 does not abut against the ratchet 82, and the ratchet 82 drives the first rotating gear 9 to rotate, but does not drive the first sliding rack 7 to move away from the valve core 5.

[0026] In this embodiment, the second rotating gear 8 is arranged on the rotating shaft 81, the second rotating gear 8 is fixedly connected to the ratchet 82, the emergency button 3 is slidably connected to the control chamber 25, the second sliding rack 32 is arranged on the bottom side wall of the emergency button 3, and the second sliding rack 32 is meshed with the second rotating gear 8. The reset chamber 23 is arranged at the top of the control chamber 25, and the third limiting bolt 31 is arranged in the reset chamber 23. The third limiting bolt 31 is fixedly connected to the emergency button 3. The fourth limiting spring 311 is sleeved on the emergency button 3, and the two ends of the fourth limiting spring 311 are respectively fixedly connected to the bottom of the reset chamber 23 and the third limiting bolt 31, which is used to reset the emergency button 3, ensure that the emergency button 3 recovers automatically after being pressed, and is convenient to press it again. In this embodiment, a booster water pump is arranged on the fire tank body 1. When the control valve 2 is in an open state, the fire-fighting liquid will be sprayed out under strong water pressure, which may cause the operator (such as a child) to be in danger in the absence of a fire. The design of this embodiment ensures that the emergency button 3 must be pressed multiple times. The number of presses can be set according to actual conditions, preferably 3 to 5 times. At this time, the first sliding rack 7 contacts the valve core 5, pushing the valve core 5 to open, allowing the fire-fighting fluid to flow out.

[0027] In this embodiment, the second sliding groove 53 is arranged at the end of the valve core 5 close to the sliding rod 51, the limiting hole 241 is arranged in the first sliding rail 24, the sliding hole is arranged on the side of the second sliding groove 53 close to the limiting hole 241, and the clamping block 54 is slidingly arranged in the second sliding groove 53. The fifth limiting spring 541 is arranged in the second sliding groove 53, and the two ends of the fifth limiting spring 541 are respectively fixedly connected with the second sliding groove 53 and the clamping block 54, and the clamping block 54 is clamped with the limiting hole 241. In this embodiment, the clamping block 54 is kept in contact with the first sliding rail 24 by the fifth limiting spring 541. When the clamping block 54 is close to the limiting hole 241, it is clamped in the first time under the action of the fifth limiting spring 541. When the valve core 5 moves, the clamping block 54 is clamped in the limiting hole 241, and the valve core 5 is clamped and cannot retreat, and the fire-fighting liquid continues to be sprayed, so that when extinguishing the fire, the fire-fighting liquid continues to flow out, so that the fire is extinguished in the first time. When the fire is extinguished, the control valve 2 is closed by pressing the block 54, thereby reducing the waste of fire fighting liquid. The fire fighting liquid used in this embodiment is preferably a foam fire extinguishing agent, a dry powder agent or a carbon dioxide fire extinguishing agent.

[0028] The second control structure in this embodiment includes a telescopic member 6, the fixed end of the telescopic member 6 is fixedly connected to the control chamber 25, and the telescopic end of the telescopic member 6 abuts against the valve core 5. The telescopic member 6 used in this embodiment is preferably a hydraulic cylinder or a gas cylinder. Among them, the hydraulic cylinder or the gas cylinder are both existing technologies and will not be described in detail in this embodiment.

[0029] The limiting notch 33 in this embodiment is arranged on the side of the emergency button 3 to ensure that the second sliding rack 32 at the lower end of the emergency button 3 will not rotate and deviate when moving, and will remain in mesh with the second rotating gear 8. A gap is provided between the second sliding rack 32 and the second rotating gear 8 to ensure that the second sliding rack 32 will be retracted and reset when not subject to external force. The gap ensures that the second sliding rack 32 is not affected when it is retracted and reset. When the telescopic member 6 pushes the valve core 5 to move, a gap is provided between the block 54 and the slot, and the cross section of the liquid guide hole 52 is a strip-shaped structure. The liquid guide hole 52 is made into a strip-shaped structure to expand the liquid guide space of the liquid guide hole 52. When the telescopic member 6 controls the movement of the valve core 5, due to the gap between the block 54 and the slot, the block 54 will not directly enter the slot. Under the action of the telescopic member 6 and the first limiting spring 511, the control valve 2 can be directly controlled.

[0030] In this embodiment, the abutment column 72 is arranged at the end of the first sliding rack 7 close to the valve core 5, and the buffer layer 721 is fixedly arranged at the end of the abutment column 72 and the telescopic end of the telescopic member 6. The buffer layer 721 is made of rubber material. Such a design reduces the collision of the first sliding rack 7 and the telescopic member 6 with the valve core 5, thereby extending the service life of the device.

[0031] The electric control component in this embodiment includes a temperature sensor and a smoke sensor, and both the temperature sensor and the smoke sensor are electrically connected to the telescopic member 6. The temperature sensor used in this embodiment is preferably Siemens - SYNOVA FC. The smoke sensor is preferably System Sensor - I4 Series. The single-product machine connected to the temperature sensor and the smoke sensor is preferably STM32F103.

[0032] The working process of this embodiment is as follows: when a fire occurs without power failure, the temperature sensor and the smoke sensor sense the occurrence of a fire through the temperature and the smoke, and start to extend the telescopic member 6. The telescopic end of the telescopic member 6 pushes the valve core 5 to move, so that the liquid guide hole 52 is connected to the liquid inlet hole 211 and the liquid outlet hole 221, and the fire fighting system discharges the fire fighting liquid. After the temperature sensor and the smoke sensor detect that the fire has disappeared, the telescopic member 6 is retracted. Under the action of the first limit spring 511, the valve core 5 is reset and the valve core 5 blocks the liquid inlet hole 211 and the liquid outlet hole 221, and the fire fighting liquid is not discharged. When a power failure occurs during a fire, the emergency button 3 is pressed multiple times: when the emergency button 3 is pressed, the second sliding rack 32 on the emergency button 3 drives the second rotating gear 8 to rotate, and the ratchet Driven by 82, the first gear rotates and drives the first sliding rack 7 to move toward the valve core 5; when the force on the emergency button 3 stops, under the action of the third limit spring 92, the emergency button 3 moves up and resets. At this time, due to the sliding connection between the limit block 91 and the ratchet 82, the second gear will not drive the first gear to rotate. This is repeated many times, and the first sliding rack 7 gradually approaches the valve core 5 and drives the valve core 5 to move, so that the liquid guide hole 52 is aligned with the liquid inlet and the liquid outlet 11, the block 54 is stuck in the limit hole 241, and the fire-fighting liquid is discharged. When the fire disappears, the block 54 is pressed to make the block 54 disengage from the limit hole 241. Under the action of the first limit spring 511, the second limit spring 711 and the fourth limit spring 311, the valve core 5 is reset and the fire-fighting liquid stops being discharged.

[0033] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A building emergency fire fighting system, comprising a fire fighting tank (1), characterized in that: The liquid outlet (11) of the fire fighting tank (1) is connected to a control valve (2), wherein a control chamber (25) is provided in the control valve (2), wherein the control chamber (25) is connected to a liquid inlet pipe (21) and a liquid outlet pipe (22), wherein a valve core (5) is provided between the liquid inlet pipe (21) and the liquid outlet pipe (22), wherein an electric control component is provided in the control chamber (25), wherein an emergency button (3) is provided outside the control valve (2), wherein a first control structure for controlling the valve core (5) to block the liquid inlet pipe (21) and the liquid outlet pipe (22) or to be away from the liquid inlet pipe (21) and the liquid outlet pipe (22) is provided in the control chamber (25), and wherein a second control structure for controlling the valve core (5) to block the liquid inlet pipe (21) and the liquid outlet pipe (22) or to be away from the liquid inlet pipe (21) and the liquid outlet pipe (22) is also provided in the control chamber (25).

2. A building emergency fire protection system according to claim 1, characterized in that: The valve core (5) is provided with a liquid guide hole (52), the control chamber (25) is provided with a first sliding rail (24), the valve core (5) is slidably connected to the first sliding rail (24), the control chamber (25) is slidably connected to the valve core (5), the first sliding rail (24) is provided with a liquid inlet hole (211) on the side close to the liquid inlet pipe (21), the first sliding rail (24) is provided with a liquid outlet hole (221) on the side close to the liquid outlet pipe (22), and the valve core (5) is connected to both the liquid outlet hole (221) and the liquid inlet hole (211). ), the liquid inlet hole (211) and the liquid outlet hole (221) are arranged on the movement track of the liquid guide hole (52), a sliding rod (51) is fixed on the valve core (5), the sliding rod (51) is slidingly connected to the first sliding rail (24), a first limiting bolt (512) is fixed to the end of the sliding rod (51), a first limiting spring (511) is sleeved on the sliding rod (51), and the two ends of the first limiting spring (511) are respectively fixedly connected to the first sliding rail (24) and the valve core (5).

3. A building emergency fire protection system according to claim 2, characterized in that: The first control structure comprises a first sliding rack (7), a second sliding rail (251) is fixed in the control chamber (25), a first sliding groove (2511) is provided in the second sliding rail (251), the cross section of the first sliding groove (2511) is a "convex"-shaped structure, the first sliding rack (7) is slidingly connected to the first sliding groove (2511), the valve core (5) is arranged within the stroke of the first sliding rack (7), and the first sliding rack (7) A sliding column (71) is fixed to the end away from the valve core (5); a mounting plate (4) is provided at the end of the control chamber (25) away from the valve core (5); the sliding column (71) is slidingly connected to the mounting plate (4); a second limiting bolt (712) is also fixed to the end of the sliding column (71); a second limiting spring (711) is sleeved on the sliding column (71); and two ends of the second limiting spring (711) are fixedly connected to the second limiting bolt (712) and the mounting plate (4), respectively.

4. A building emergency fire protection system according to claim 3, characterized in that: A rotating shaft (81) is rotatably connected in the control chamber (25), a first rotating gear (9) is fixed on the rotating shaft (81), the first rotating gear (9) is meshed with the first sliding rack (7), a ratchet (82) is rotatably connected to the rotating shaft (81), a plurality of limit blocks (91) are rotatably connected to the first rotating gear (9), one end of each of the limit blocks (91) is in contact with the ratchet (82), and each of the limit blocks (91) is further provided with a third limit spring (92), two ends of the third limit spring (92) are respectively fixedly connected to one end of the limit block (91) away from the ratchet (82) and the first rotating gear (9).

5. A building emergency fire protection system according to claim 4, characterized in that: A second rotating gear (8) is also provided on the rotating shaft (81), and the second rotating gear (8) is fixedly connected to the ratchet (82). The emergency button (3) is slidably connected to the control cavity (25). A second sliding rack (32) is provided on the side wall of the bottom of the emergency button (3), and the second sliding rack (32) meshes with the second rotating gear (8). A reset cavity (23) is also provided at the top of the control cavity (25), and a third limiting bolt (31) is provided in the reset cavity (23), and the third limiting bolt (31) is fixedly connected to the emergency button (3). A fourth limiting spring (311) is also sleeved on the emergency button (3), and two ends of the fourth limiting spring (311) are respectively fixedly connected to the bottom of the reset cavity (23) and the third limiting bolt (31).

6. A building emergency fire protection system according to claim 5, characterized in that: The valve core (5) is provided with a second sliding groove (53) near the end of the sliding rod (51); a limiting hole (241) is provided in the first sliding rail (24); a sliding hole is provided on the side of the second sliding groove (53) near the limiting hole (241); a clamping block (54) is slidably connected in the second sliding groove (53); a fifth limiting spring (541) is provided in the second sliding groove (53); two ends of the fifth limiting spring (541) are respectively fixedly connected to the second sliding groove (53) and the clamping block (54); and the clamping block (54) is clamped to the limiting hole (241).

7. A building emergency fire fighting system according to claim 6, characterized in that: The second control structure comprises a telescopic member (6), the fixed end of the telescopic member (6) being fixedly connected to the control chamber (25), and the telescopic end of the telescopic member (6) being in contact with the valve core (5).

8. A building emergency fire fighting system according to claim 7, characterized in that: A limiting notch (33) is provided on the side of the emergency button (3), a gap is provided between the second sliding rack (32) and the second rotating gear (8), and when the telescopic member (6) pushes the valve core (5) to move, a gap is provided between the clamping block (54) and the clamping groove, and the cross section of the liquid guide hole (52) is a strip-shaped structure.

9. A building emergency fire fighting system according to claim 7, characterized in that: The first sliding rack (7) is provided with an abutment column (72) at the end close to the valve core (5), and a buffer layer (721) is fixed to the end of the abutment column (72) and the telescopic end of the telescopic member (6), and the buffer layer (721) is made of rubber material.

10. A building emergency fire fighting system according to claim 7, characterized in that: The electric control component comprises a temperature sensor and a smoke sensor, and both the temperature sensor and the smoke sensor are electrically connected to the telescopic member (6).

Images