Smoke and air exhaust system shared by charging garage and fireproof control device

Abstract

The invention relates to the technical field of fire-fighting smoke exhaust and ventilation, and discloses a charging garage shared smoke exhaust and air exhaust system and a fireproof control device.The charging garage shared smoke exhaust and air exhaust system comprises an air inlet pipe, a controller is fixedly connected to the interior of the air inlet pipe, a main pipe is fixedly connected to the outer wall of the air inlet pipe, and a smoke exhaust pipe is fixedly connected to the outer wall of the main pipe; a smoke sensor is fixedly connected to the inner wall of the smoke exhaust pipe, a temperature sensor is fixedly connected to the inner wall of the smoke exhaust pipe, the controller is electrically connected with the smoke sensor, and the controller is electrically connected with the temperature sensor. The smoke exhaust pipe is installed on the outer side of the main pipe, the first electric fireproof valve is arranged in the smoke exhaust pipe, and meanwhile the smoke sensor and the temperature sensor are installed in the smoke exhaust pipe, so that the effects of rapidly monitoring the fire behavior of the charging garage, isolating the fire area, isolating smoke, removing smoke in the disaster area and assisting follow-up rescue work to be smoothly carried out can be achieved.

Description

Technical Field

[0001] This invention relates to the field of fire smoke exhaust and ventilation technology, specifically to a shared smoke exhaust and ventilation system and fire control device for charging car garages. Background Technology

[0002] Fire smoke extraction and ventilation are important components of building fire safety systems. They are mainly used to control the spread of smoke during a fire and to ensure the environment for personnel evacuation and fire rescue. The ventilation system is used to maintain the air quality in the space, meet the breathing needs of people during normal activities and the environmental requirements for equipment operation. The smoke extraction system is activated quickly when a fire occurs to reduce the concentration and toxicity of smoke, prevent people from suffocating or being poisoned by inhaling smoke, and at the same time reduce the damage of smoke to the building structure, thus buying time for fire fighting and personnel escape.

[0003] Existing ventilation systems promote indoor air circulation through mechanical or natural means under normal conditions, while smoke exhaust systems are activated quickly in the event of a fire. Through smoke exhaust fans, smoke exhaust ducts, smoke exhaust outlets and other equipment, they promptly remove high-temperature smoke generated by indoor combustion. The two systems work together to maintain the fire safety of charging car garages. However, existing smoke exhaust systems often require real-time monitoring by a central control unit, which can lead to slow fire detection. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a shared smoke and ventilation system and fire control device for charging car garages, which solves the problem of slow fire detection caused by the need for real-time monitoring by a central control unit in existing smoke exhaust systems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fire control device comprising an air inlet duct, a controller fixedly connected inside the air inlet duct, a main pipe fixedly connected to the outer wall of the air inlet duct, a smoke exhaust duct fixedly connected to the outer wall of the main pipe, a smoke sensor fixedly connected to the inner wall of the smoke exhaust duct, a temperature sensor fixedly connected to the inner wall of the smoke exhaust duct, the controller electrically connected to the smoke sensor, the controller electrically connected to the temperature sensor, an electric fire damper fixedly connected inside the smoke exhaust duct, a single-sided louver fan provided on the inner wall of the air inlet duct, and an installation assembly provided on the outer wall of the air inlet duct, the installation assembly being used to assist in the installation and removal of the single-sided louver fan.

[0006] By adopting the above technical solution, a smoke exhaust pipe is installed on the outside of the main pipe. An electric fire damper is installed inside the smoke exhaust pipe. During normal operation, the electric fire damper remains open to maintain normal ventilation and smoke exhaust functions. Simultaneously, smoke and temperature sensors are installed inside the smoke exhaust pipe. When a fire occurs in the charging car garage, the smoke concentration and temperature in the affected area rise. After detecting abnormal data, the smoke and temperature sensors transmit electrical signals to the controller. The controller then controls the electric fire damper in the affected area to remain open while closing the electric fire dampers in other areas. Smoke is then exhausted through the air intake pipe from a single-sided louvered fan. This achieves the effects of quickly monitoring fire hazards in the charging car garage, isolating the affected area, preventing the spread of fire smoke, removing smoke from the affected area, and assisting in subsequent rescue work.

[0007] Preferably, the installation assembly includes a fixing block, the outer wall of which is fixedly connected to the outer wall of the air inlet pipe, a rotating shaft fixedly connected inside the fixing block, a rotating block rotatably connected to the outer wall of the rotating shaft, a handle fixedly connected to the outer wall of the rotating block, a second locking block provided on the outer wall of the rotating block, and a first locking block fixedly connected to the outer wall of the second locking block.

[0008] Preferably, the first locking block is provided with a return spring inside, the outer wall of the return spring is provided inside the air inlet pipe, the outer wall of the first locking block is slidably connected to the inner wall of the single-sided louver fan, the outer wall of the first locking block is slidably connected to the inner wall of the air inlet pipe, and the outer wall of the second locking block is slidably connected to the outer wall of the air inlet pipe.

[0009] Preferably, a shared smoke and ventilation system for charging car garages includes a smoke exhaust fan connected to the fire control device, a branch duct fixedly connected to the outer wall of the smoke exhaust pipe, and an electric fire damper fixedly connected to the inside of the branch duct.

[0010] Preferably, an installation block is fixedly connected to the inner wall of the branch duct, a drive motor is fixedly connected to the outer wall of the installation block, a transmission component is provided at the output end of the drive motor, a positioning component is connected to the transmission component, a limit block is connected to the positioning component, a limit component is provided on the outer wall of the installation block, the limit component is connected to the limit block, the limit component is connected to the positioning component, and the positioning component is connected to the installation block.

[0011] Preferably, the transmission assembly includes a first transmission gear, the outer wall of which is fixedly connected to the output end of the drive motor, the tooth end of the first transmission gear meshing with a second transmission gear, the outer wall of the limiting block being fixedly connected to the outer wall of the second transmission gear, and a third limiting groove being formed inside the second transmission gear.

[0012] Preferably, the positioning component includes a positioning block one, the outer wall of the positioning block one is rotatably connected to the outer wall of the transmission gear two, the inner wall of the positioning block one is fixedly connected to the positioning block two, the outer wall of the positioning block two is disposed inside the limiting groove three, the outer wall of the positioning block two is disposed inside the transmission gear two, and the outer wall of the positioning block two is fixedly connected to the inside of the mounting block.

[0013] Preferably, the limiting component includes a blocking block, the outer wall of the blocking block is rotatably connected to the outer wall of the mounting block, and a limiting groove one and a limiting groove two are formed inside the blocking block.

[0014] Preferably, the outer wall of the limiting block is disposed inside the limiting groove, and the outer wall of the limiting block is disposed inside the blocking block.

[0015] Preferably, the outer wall of the second positioning block is rotatably connected to the inside of the second limiting groove, and the outer wall of the second positioning block is rotatably connected to the inside of the blocking block.

[0016] Working principle: By installing a smoke exhaust pipe on the outside of the main pipe, and an electric fire damper is installed inside the smoke exhaust pipe, the electric fire damper is normally open to maintain daily ventilation and smoke exhaust functions. At the same time, smoke sensors and temperature sensors are installed inside the smoke exhaust pipe. When a fire occurs in the charging car garage, the smoke concentration and temperature in the affected area rise. After the smoke sensor and temperature sensor detect abnormal data, they transmit electrical signals to the controller. The controller then controls the electric fire damper in the affected area to remain open and closes the electric fire dampers in other areas. Subsequently, the smoke is discharged through the air intake pipe from the louvered fans on one side. This achieves the effect of quickly monitoring the fire situation in the charging car garage, isolating the fire area, isolating smoke, removing smoke from the affected area, and assisting the smooth progress of subsequent rescue work.

[0017] When the handle is pulled, the rotating block rotates under the action of the handle, and then the second locking block slides under the action of the rotating block. Subsequently, the first locking block slides with the second locking block, and then the first locking block disengages from the inside of the single-sided louver, so that the air inlet pipe can be separated from the single-sided louver. This allows maintenance personnel to quickly disassemble the single-sided louver, regularly clean the inside of the air inlet pipe, and check the controller to ensure the normal operation of the fire control device.

[0018] By installing branch ducts on the outside of the smoke exhaust pipe, under normal conditions, the controller controls the smoke exhaust fan to run at a low speed and opens the electric fire damper II to achieve ventilation in the charging car garage. When a fire occurs, the controller detects the fire and controls the smoke exhaust fan to run faster, expelling smoke from the air inlet pipe, while simultaneously closing the electric fire damper II. This achieves the integration of the smoke exhaust and ventilation systems, saving ductwork area, reducing costs, and meeting the needs of both smoke exhaust and ventilation.

[0019] Start the drive motor to drive the first transmission gear to rotate. Then the second transmission gear rotates under the drive of the first transmission gear. Then the limit block rotates under the drive of the second positioning block. At this time, the blocking block rotates with the limit block, thereby adjusting the ventilation volume of the branch air duct, avoiding uneven ventilation volume of the branch air ducts installed around the main pipe, and maintaining the ventilation effect of the charging car garage.

[0020] This invention provides a shared smoke and ventilation system and fire control device for charging car garages. It has the following beneficial effects: 1. This invention installs a smoke exhaust pipe on the outside of the main pipe, and an electric fire damper is installed inside the smoke exhaust pipe. Under normal conditions, the electric fire damper is in the open state to maintain daily ventilation and smoke exhaust functions. At the same time, smoke sensors and temperature sensors are installed inside the smoke exhaust pipe, thereby achieving the effects of quickly monitoring the fire situation in the charging car garage, isolating the fire area, isolating smoke, removing smoke from the disaster area, and assisting the smooth progress of subsequent rescue work.

[0021] 2. In this invention, the rotating block rotates under the drive of the handle, and then the second locking block slides under the drive of the rotating block, thereby assisting maintenance personnel to quickly disassemble the single-sided louvered fan, regularly clean the inside of the air inlet pipe, and check the controller to ensure the normal operation of the fire control device.

[0022] 3. This invention installs branch ducts on the outside of the exhaust duct. Under normal conditions, the controller controls the exhaust fan to run at low speed and opens the electric fire damper II to achieve ventilation in the charging car garage. This integrates the exhaust and ventilation systems, saves ductwork area, reduces costs, and meets the needs of both exhaust and ventilation.

[0023] 4. This invention starts the drive motor to drive the first transmission gear to rotate, and then the second transmission gear rotates under the drive of the first transmission gear, thereby adjusting the ventilation volume of the branch air ducts, avoiding uneven ventilation volume of the branch air ducts installed around the main pipe, and maintaining the ventilation effect of the charging car garage. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial structural diagram of the controller of the present invention; Figure 3 This is a partial structural diagram of the smoke sensor of the present invention; Figure 4 This is a partial structural diagram of the card block two of the present invention; Figure 5 This is a cross-sectional schematic diagram of the internal structure of the branch duct of the present invention; Figure 6 This is a partial structural diagram of the smoke exhaust fan of the present invention; Figure 7 This is a partial structural diagram of the electric fire damper of the present invention; Figure 8 This is a partial structural diagram of the shielding block of the present invention; Figure 9 This is a partial structural diagram of the positioning block two of the present invention; Figure 10 This is a schematic diagram of a partial structure of the transmission gear of the present invention.

[0025] The components include: 1. Air inlet duct; 2. Single-sided louvered fan; 3. Main duct; 4. Smoke exhaust duct; 5. Branch duct; 6. Smoke exhaust fan; 7. Electric fire damper one; 8. Electric fire damper two; 9. Mounting assembly; 91. Fixing block; 92. Rotating shaft; 93. Rotating block; 94. Handle; 95. Locking block one; 96. Locking block two; 97. Return spring; 10. Mounting block; 11. Drive motor; 12. Transmission assembly; 121. Transmission gear one; 122. Transmission gear two; 13. Positioning assembly; 131. Positioning block one; 132. Positioning block two; 14. Limiting block; 15. Limiting assembly; 151. Blocking block; 152. Limiting groove one; 153. Limiting groove two; 16. Limiting groove three; 17. Controller; 18. Smoke sensor; 19. Temperature sensor. Detailed Implementation

[0026] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0027] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 This invention provides a fire control device, including an air inlet pipe 1, a controller 17 fixedly connected inside the air inlet pipe 1, a main pipe 3 fixedly connected to the outer wall of the air inlet pipe 1, a smoke exhaust pipe 4 fixedly connected to the outer wall of the main pipe 3, a smoke sensor 18 fixedly connected to the inner wall of the smoke exhaust pipe 4, a temperature sensor 19 fixedly connected to the inner wall of the smoke exhaust pipe 4, the controller 17 being electrically connected to the smoke sensor 18, the controller 17 being electrically connected to the temperature sensor 19, an electric fire damper 7 fixedly connected inside the smoke exhaust pipe 4, a single-sided louvered fan 2 provided on the inner wall of the air inlet pipe 1, and an installation component 9 provided on the outer wall of the air inlet pipe 1, the installation component 9 being used to assist in the installation and disassembly of the single-sided louvered fan 2; Specifically, by installing a smoke exhaust pipe 4 on the outside of the main pipe 3, an electric fire damper 7 is installed inside the smoke exhaust pipe 4. Under normal conditions, the electric fire damper 7 remains open, thus maintaining daily ventilation and smoke exhaust. At the same time, a smoke sensor 18 and a temperature sensor 19 are installed inside the smoke exhaust pipe 4. When a fire occurs inside the charging car garage, the smoke concentration and temperature in the affected area rise significantly. At this time, the smoke sensor 18 and the temperature sensor 19 detect abnormal data and transmit electrical signals to the controller 17. The controller 17 then controls the opening of the electric fire damper 7 in the affected area and the closing of the electric fire dampers 7 in other areas. Subsequently, the smoke is discharged through the air inlet pipe 1 from the single-sided louvered fan 2. This achieves the effects of quickly monitoring fire hazards in the charging car garage, isolating the affected area, preventing the spread of fire smoke, removing smoke from the affected area, and assisting in subsequent rescue work.

[0028] See appendix Figure 1 Appendix Figure 2 and attached Figure 4 The installation component 9 includes a fixing block 91, the outer wall of the fixing block 91 is fixedly connected to the outer wall of the air inlet pipe 1, the inside of the fixing block 91 is fixedly connected to a rotating shaft 92, the outer wall of the rotating shaft 92 is rotatably connected to a rotating block 93, the outer wall of the rotating block 93 is fixedly connected to a handle 94, the outer wall of the rotating block 93 is provided with a second locking block 96, and the outer wall of the second locking block 96 is fixedly connected to a first locking block 95. Specifically, by pulling the handle 94, which is fixedly connected to the rotating block 93, the rotating block 93 rotates around the rotating shaft 92 under the drive of the handle 94. The fixed block 91 provides a mounting fulcrum for the rotating shaft 92. Then, the second locking block 96 slides inside the air inlet duct 1 under the drive of the rotating block 93. Since the first locking block 95 is fixedly connected to the second locking block 96, the first locking block 95 slides inside the air inlet duct 1 under the drive of the second locking block 96. Then, the first locking block 95 disengages from the inside of the single-sided louver fan 2, thereby separating the air inlet duct 1 from the single-sided louver fan 2. The single-sided louver fan 2 is used to maintain duct ventilation and prevent impurities from entering the duct, thereby facilitating maintenance personnel to quickly disassemble the single-sided louver fan 2, clean the inside of the air inlet duct 1, and check the controller 17 to ensure the normal operation of the fire control device.

[0029] See appendix Figure 1 and attached Figure 2 The first locking block 95 is equipped with a return spring 97 inside. The outer wall of the return spring 97 is located inside the air inlet pipe 1. The outer wall of the first locking block 95 is slidably connected to the inner wall of the single-sided louver fan 2. The outer wall of the first locking block 95 is slidably connected to the inner wall of the air inlet pipe 1. The outer wall of the second locking block 96 is slidably connected to the outer wall of the air inlet pipe 1. Specifically, the reset spring 97 is used to assist the locking block 95 in fixing it inside the single-sided louver fan 2, and the locking block 95 is used to restrict the single-sided louver fan 2 inside the air inlet pipe 1.

[0030] See appendix Figure 5 Appendix Figure 6 and attached Figure 7 The fire control device is connected to the smoke exhaust fan 6, and the outer wall of the smoke exhaust pipe 4 is fixedly connected to the branch pipe 5. The inside of the branch pipe 5 is fixedly connected to the electric fire damper 8. Specifically, by installing branch ducts 5 on the outside of the smoke exhaust duct 4, under normal conditions, the controller 17 controls the smoke exhaust fan 6 to run slowly and opens the electric fire damper 8 to maintain ventilation in the charging car garage. When a fire occurs, the controller 17 detects the fire and controls the smoke exhaust fan 6 to run faster, expelling smoke from inside the air inlet duct 1, while simultaneously closing the electric fire damper 8. This achieves the integration of the smoke exhaust and ventilation systems, saving ductwork area, reducing ductwork installation difficulty, saving costs, and meeting the needs of both smoke exhaust and ventilation.

[0031] See appendix Figure 7 Appendix Figure 8 and attached Figure 9 A mounting block 10 is fixedly connected to the inner wall of branch duct 5, and a drive motor 11 is fixedly connected to the outer wall of mounting block 10. A transmission assembly 12 is provided at the output end of drive motor 11. A positioning assembly 13 is connected to the transmission assembly 12, and a limit block 14 is connected to the positioning assembly 13. A limit assembly 15 is provided on the outer wall of mounting block 10. The limit assembly 15 is connected to the limit block 14, and the positioning assembly 13 is connected to the mounting block 10. The transmission assembly 12 includes a first transmission gear 121, the outer wall of which is fixedly connected to the output end of drive motor 11. A second transmission gear 122 is meshed with the tooth end of the first transmission gear 121. The outer wall of the limit block 14 is fixedly connected to... On the outer wall of the second transmission gear 122, a third limiting groove 16 is formed inside the second transmission gear 122; the positioning component 13 includes a first positioning block 131, the outer wall of the first positioning block 131 is rotatably connected to the outer wall of the second transmission gear 122, the inner wall of the first positioning block 131 is fixedly connected to a second positioning block 132, the outer wall of the second positioning block 132 is disposed inside the third limiting groove 16, the outer wall of the second positioning block 132 is disposed inside the second transmission gear 122, and the outer wall of the second positioning block 132 is fixedly connected to the inside of the mounting block 10; the limiting component 15 includes a blocking block 151, the outer wall of the blocking block 151 is rotatably connected to the outer wall of the mounting block 10, the inner wall of the blocking block 151 is formed with a first limiting groove 152, and the inner wall of the blocking block 151 is formed with a second limiting groove 153; Specifically, by starting the drive motor 11, the transmission gear 121 is driven to rotate. Then, the transmission gear 122 rotates under the drive of the transmission gear 121. Since the positioning block 132 is fixedly connected to the limiting block 14, the limiting block 14 rotates inside the blocking block 151 along the limiting groove 152 under the drive of the positioning block 132. At this time, the blocking block 151 rotates around the positioning block 132 under the drive of the limiting block 14. The mounting block 10 is used to provide an installation position for the positioning block 132. During this process, the transmission gear 122 rotates around the positioning block 132, and the limiting groove 16 is used to limit the rotation range of the transmission gear 122. Finally, the purpose of controlling the opening and closing size of the blocking block 151 is achieved, thereby adjusting the ventilation volume of the branch duct 5, avoiding uneven ventilation of the branch ducts 5 installed around the main duct 3, maintaining the ventilation of the charging car garage, and improving the comfort of users.

[0032] See appendix Figure 9 and attached Figure 10 The outer wall of the limiting block 14 is located inside the limiting groove 152, and the outer wall of the limiting block 14 is located inside the blocking block 151; the outer wall of the positioning block 132 is rotatably connected to the inside of the limiting groove 153, and the outer wall of the positioning block 132 is rotatably connected to the inside of the blocking block 151. Specifically, the first limiting groove 152 is used to limit the rotation trajectory of the blocking block 151, and the second limiting groove 153 is used to accommodate the second positioning block 132.

[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fire control device, comprising an air inlet duct (1), characterized in that, A controller (17) is fixedly connected inside the air inlet pipe (1). A main pipe (3) is fixedly connected to the outer wall of the air inlet pipe (1). A smoke exhaust pipe (4) is fixedly connected to the outer wall of the main pipe (3). A smoke sensor (18) is fixedly connected to the inner wall of the smoke exhaust pipe (4). A temperature sensor (19) is fixedly connected to the inner wall of the smoke exhaust pipe (4). The controller (17) is electrically connected to the smoke sensor (18). The controller (17) is electrically connected to the temperature sensor (19). An electric fire damper (7) is fixedly connected inside the smoke exhaust pipe (4). A single-sided louvered fan (2) is provided on the inner wall of the air inlet pipe (1). An installation component (9) is provided on the outer wall of the air inlet pipe (1). The installation component (9) is used to assist in the installation and disassembly of the single-sided louvered fan (2).

2. The fire control device according to claim 1, characterized in that, The installation assembly (9) includes a fixing block (91), the outer wall of which is fixedly connected to the outer wall of the air inlet pipe (1), a rotating shaft (92) is fixedly connected inside the fixing block (91), a rotating block (93) is rotatably connected to the outer wall of the rotating shaft (92), a handle (94) is fixedly connected to the outer wall of the rotating block (93), a second locking block (96) is provided on the outer wall of the rotating block (93), and a first locking block (95) is fixedly connected to the outer wall of the second locking block (96).

3. A fire control device according to claim 2, characterized in that, The first locking block (95) is provided with a return spring (97) inside. The outer wall of the return spring (97) is provided inside the air inlet pipe (1). The outer wall of the first locking block (95) is slidably connected to the inner wall of the single-sided louver fan (2). The outer wall of the first locking block (95) is slidably connected to the inner wall of the air inlet pipe (1). The outer wall of the second locking block (96) is slidably connected to the outer wall of the air inlet pipe (1).

4. A shared smoke and ventilation system for charging car garages, comprising a fire control device as described in any one of claims 1-3, characterized in that, The fire control device is connected to a smoke exhaust fan (6), and a branch duct (5) is fixedly connected to the outer wall of the smoke exhaust pipe (4). An electric fire damper (8) is fixedly connected inside the branch duct (5).

5. A shared smoke and ventilation system for a charging car garage according to claim 4, characterized in that, The inner wall of the branch duct (5) is fixedly connected to an installation block (10), and the outer wall of the installation block (10) is fixedly connected to a drive motor (11). The output end of the drive motor (11) is provided with a transmission component (12), the transmission component (12) is connected to a positioning component (13), the positioning component (13) is connected to a limit block (14), the transmission component (12) is connected to the limit block (14), the outer wall of the installation block (10) is provided with a limit component (15), the limit component (15) is connected to the limit block (14), the limit component (15) is connected to the positioning component (13), and the positioning component (13) is connected to the installation block (10).

6. A shared smoke and ventilation system for a charging car garage according to claim 5, characterized in that, The transmission assembly (12) includes a transmission gear one (121), the outer wall of the transmission gear one (121) is fixedly connected to the output end of the drive motor (11), the tooth end of the transmission gear one (121) is meshed with a transmission gear two (122), the outer wall of the limiting block (14) is fixedly connected to the outer wall of the transmission gear two (122), and a limiting groove three (16) is opened inside the transmission gear two (122).

7. A shared smoke and ventilation system for a charging car garage according to claim 5, characterized in that, The positioning component (13) includes a positioning block one (131), the outer wall of the positioning block one (131) is rotatably connected to the outer wall of the transmission gear two (122), the inner wall of the positioning block one (131) is fixedly connected to the positioning block two (132), the outer wall of the positioning block two (132) is disposed inside the limiting groove three (16), the outer wall of the positioning block two (132) is disposed inside the transmission gear two (122), and the outer wall of the positioning block two (132) is fixedly connected to the inside of the mounting block (10).

8. A shared smoke and ventilation system for a charging car garage according to claim 5, characterized in that, The limiting component (15) includes a blocking block (151), the outer wall of the blocking block (151) is rotatably connected to the outer wall of the mounting block (10), a limiting groove one (152) is opened inside the blocking block (151), and a limiting groove two (153) is opened inside the blocking block (151).

9. A shared smoke and ventilation system for a charging car garage according to claim 5, characterized in that, The outer wall of the limiting block (14) is disposed inside the limiting groove (152), and the outer wall of the limiting block (14) is disposed inside the blocking block (151).

10. A shared smoke and ventilation system for a charging car garage according to claim 7, characterized in that, The outer wall of the second positioning block (132) is rotatably connected to the inside of the second limiting groove (153), and the outer wall of the second positioning block (132) is rotatably connected to the inside of the blocking block (151).

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