Ventilation, illumination and early warning all-in-one machine for underground space

Abstract

The utility model relates to an underground space ventilation, illumination and early warning all-in-one machine. The all-in-one machine comprises a box-shaped machine shell, a filter plate, a columnar direct-current fan, an air pipe, an LED lamp strip, an alarm lamp and a standby power source. A communicating pipe communicated with the air pipe is arranged at the high position of the front wall of the box-shaped machine shell. A filter plate is vertically arranged in the middle of the box-shaped machine shell. A U-shaped mounting plate with an upward opening is arranged on the inner wall of the rear wall of the box-shaped shell; a ventilation hole is formed in the rear wall of the box-shaped machine shell; an external wire and an alarm lamp are arranged on the side wall of the box-shaped machine shell. The columnar direct-current fan comprises a columnar main body and a flange; a clamping groove is formed in the inner edge of the rear end of the U-shaped mounting plate; the flange is clamped into the clamping groove; the LED lamp strip is spirally wound on the outer wall of the air pipe; the standby power supply is arranged in the box-shaped machine shell; the columnar direct-current fan and the LED lamp strip are electrically connected with an external wire; and the columnar direct-current fan, the LED lamp strip and the alarm lamp are electrically connected with the standby power supply. And for an overlarge underground space, the wind direction is changed when the device works for a period of time, so that the time for uniformly distributing fresh air is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of underground space construction, in particular to an underground space ventilation, lighting and early warning integrated machine. Background Art

[0002] Underground spaces often lack air circulation and are humid, making them prone to mold growth. This creates a foul air quality and poses a health threat to construction workers. Currently, during underground construction, construction companies install ventilation equipment to increase air circulation, bringing fresh surface air into the underground space for construction workers to breathe and extracting polluted underground air to the surface to prevent harm to workers. This ventilation equipment includes fans and ducts. Existing technology usually sets up a vertical shaft or ventilation duct connected to the underground space; then the fan is connected to the air duct, and the air duct is passed through the vertical shaft or ventilation duct, so that the wind generated by the fan acts on the underground space through the air duct; the ventilation equipment has two sets, one set is used to transport fresh air from the surface to the underground space, and the other set is used to send the polluted gas in the underground space to above the surface; in actual use, the underground space is used to input fresh air and extract polluted gas due to the density difference, so that fresh air is evenly distributed throughout the underground space; it takes time for fresh air to be evenly distributed throughout the underground space; once the underground space is too large, the time for fresh air to be evenly distributed will also be extended; construction workers still face the risk of physical injury during this period. Utility Model Content

[0003] The purpose of the utility model is to solve the above problems and provide an underground space ventilation, lighting and early warning integrated machine.

[0004] The technical solution of the utility model is: an underground space ventilation, lighting, and early warning integrated machine, comprising a box-shaped casing, a filter plate, a columnar DC fan, an air duct, an LED light strip, an alarm light, and a standby power supply; the box-shaped casing installs the filter plate, the columnar DC fan, and the standby power supply inside the box-shaped casing to protect the filter plate, the columnar DC fan, and the standby power supply; a connecting pipe connected to the air duct is provided at a high position on the front wall of the box-shaped casing, so that the positive airflow or reverse airflow output by the columnar DC fan acts on the air duct; the positive airflow acts on the air duct to send fresh air into the underground space through the air duct; the reverse airflow acts on the air duct to draw the polluted air out of the underground space through the air duct A filter plate is vertically arranged in the middle of the box-shaped casing; the filter plate covers the vertical cross-section in the middle of the box-shaped casing; the filter plate can allow the passage of both positive and negative airflows; when the reverse airflow passes through the filter plate, dust and impurities in the polluted air will be isolated in the front of the box-shaped casing to prevent these dust and impurities from entering the interior of the columnar DC fan and causing structural damage; when the positive airflow passes through the filter plate, these dust and impurities are carried by the positive airflow and impact the front wall of the box-shaped casing, and remain in the front of the box-shaped casing in the form of being attached to the front wall of the box-shaped casing; the inner wall of the rear wall of the box-shaped casing is provided with a U-shaped mounting plate with an opening facing upwards; the rear wall of the box-shaped casing is provided with a U-shaped mounting plate with a closed end connected to the U-shaped mounting plate The vents are connected to the outside of the box-shaped housing through the ventilation holes; the side walls of the box-shaped housing are provided with external wires and alarm lights for connecting to an external DC power supply; the columnar DC fan comprises a columnar main body in the middle and flanges at the front and rear ends; the inner edge of the rear end of the U-shaped mounting plate is provided with a card slot corresponding to the flange; the columnar main body is attached to the closed end of the U-shaped mounting plate; the flange at the rear end is snapped into the inside of the card slot; the columnar DC fan is mounted on the U-shaped plate; the columnar DC fan can change the direction of the airflow it outputs by turning horizontally, that is, the conversion between forward airflow and reverse airflow; the LED light strip is spirally wrapped around the outer wall of the air duct and glued to the outer wall of the air duct; the LED light can It can enter the underground space along with the air duct to illuminate the underground space; the backup power supply is set inside the box-shaped casing; the columnar DC fan and LED light strip are electrically connected to the external wires; the external wires connect the columnar DC fan and LED light strip to the external DC power supply to provide electricity in normal times; the columnar DC fan, LED light strip, and alarm light are electrically connected to the backup power supply; when the external wires are powered off, the backup power supply supplies power to the columnar DC fan, LED light strip, and alarm light; the alarm light alerts the construction workers to evacuate quickly; the columnar DC fan and LED light strip provide ventilation and lighting for a period of time during rapid evacuation to ensure the safe evacuation of construction workers.

[0005] Preferably, the underground space ventilation, lighting and early warning integrated machine also includes mounting bolts; the rear wall of the box-shaped casing is also provided with a fixing through-hole; the fixing through-hole is arranged above the ventilation hole and corresponds to the flange; the mounting bolt passes through the fixing through-hole and is connected to the flange to increase the stability of the columnar DC fan.

[0006] Preferably, a vertical notch, an upper flip cover and a hinge matching the vertical notch are provided on the rear side of the top of the box-shaped casing; the inner edge of the upper flip cover is connected to the front side of the top of the box-shaped casing through the hinge; the vertical notch is arranged above the columnar DC fan; the upper flip cover cooperates with the vertical notch, on the one hand to ensure the airtightness of the interior of the box-shaped casing to ensure that the wind force generated by the columnar DC fan is used on the air duct as much as possible, and on the other hand it is also convenient for the operation of the columnar DC fan and the installation and adjustment of the standby power supply.

[0007] Furthermore, a sealing gasket A is provided on the outer edge of the bottom of the upper cover; a sealing gasket B matching the sealing gasket A is provided on the upper edge of the vertical notch; the sealing gasket A and the sealing gasket B cooperate with each other to increase the airtightness when the upper cover is buckled on the vertical notch.

[0008] Furthermore, a horizontal notch, a side door and hinge B matching the horizontal notch are provided at a lower position on one side of the front end of the box-shaped casing; one end of the side door is connected to the side wall of the box-shaped casing through hinge B; the side door is mainly used to discharge dust, impurities, etc. isolated in the front of the box-shaped casing to the outside.

[0009] Furthermore, the underground space ventilation, lighting, and early warning integrated machine also includes a spring lock; the upper cover and the side door are connected to the box-shaped casing through the spring lock to ensure a closed environment inside the box-shaped casing, so as to ensure that the forward airflow / reverse airflow generated by the columnar DC fan acts on the air duct as much as possible.

[0010] Preferably, an insertion slot corresponding to the filter plate is provided in the middle of the top of the box-shaped casing; the insertion slot extends from the top of the box-shaped casing to the bottom of the box-shaped casing; the filter plate is inserted into the insertion slot; the insertion slot can facilitate the installation and replacement of the filter plate.

[0011] Furthermore, the insertion groove passes through the left and right inner walls of the box-shaped casing; the insertion groove limits the filter plate horizontally to ensure the vertical stability of the filter plate.

[0012] Furthermore, a clamping block is provided on the top of the filter plate; the horizontal cross-sectional area of the clamping block is greater than the slot area of the insertion slot; the clamping block can facilitate the installation and replacement of the filter plate.

[0013] Furthermore, a handle is provided at the top center of the block to facilitate installation and replacement of the filter plate.

[0014] Preferably, the underground space ventilation, lighting and warning integrated machine also includes a pipe clamp; the air duct is a hose made of elastic material; the end of the air duct is connected to the connecting pipe through the pipe clamp; the pipe clamp can ensure the airtightness of the connection between the air duct and the connecting pipe.

[0015] The beneficial effects of the utility model are as follows: the underground space ventilation, lighting, and early warning integrated machine of the utility model has the following advantages:

[0016] (1) The utility model can change the output wind direction by making the columnar DC fan turn horizontally, that is, the columnar DC fan turns horizontally, and the positive airflow and the reverse airflow switch with each other; for underground spaces that are too large, the utility model makes the horizontal pipe of the columnar DC fan turn around after working for a period of time; the air duct that originally outputs positive airflow to the underground space is converted to using reverse airflow to extract dirty air; the air duct that originally uses reverse airflow to extract dirty air from the underground space is converted to using positive airflow to transport fresh air. The time for fresh air to be evenly distributed is shortened;

[0017] (2) The insertion slot of the utility model can speed up the installation and replacement of the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the utility model's underground space ventilation, lighting, and early warning all-in-one machine;

[0019] Figure 2 yes Figure 1 Rear view;

[0020] Figure 3 yes Figure 2 AA section view;

[0021] Figure 4 yes Figure 3 BB cross-sectional view;

[0022] Figure 5 yes Figure 4 CC cross-sectional view;

[0023] Figure 6 yes Figure 5 DD cross-sectional view;

[0024] Figure 7 yes Figure 5 EE cross-sectional view;

[0025] Figure 8 is a working circuit diagram in embodiment 1;

[0026] Figure 9 It is the real object of this utility model Figure 1 ;

[0027] Figure 10 It is the real object of this utility model Figure 2 ;

[0028] Figure 11 It is the real object of this utility model Figure 3 ;

[0029] In the figure: 01. Double-pole main switch, 011. First branch switch, 012. Second branch switch, 02. DC relay, 021. Normally open switch, 022. First normally closed switch, 023. Second normally closed switch, 03. Motor of columnar DC fan,

[0030] 1. Box-shaped housing, 11. Connecting pipe, 111. Flange, 12. U-shaped mounting plate, 121. Slot, 13. Ventilation hole, 14. External wire, 15. Fixing hole, 161. Vertical notch, 1611. Sealing gasket B, 162. Upper cover, 1621. Sealing gasket A, 163. Hinge A, 171. Horizontal notch, 172. Side door, 173. Hinge B, 18. Insert slot, 2. Filter plate, 21. Block, 22. Handle, 3. Columnar DC fan, 31. Columnar body, 32. Flange, 4. Air duct, 5. LED light strip, 6. Warning light, 7. Backup power supply, 8. Spring lock, 9. Pipe clamp. DETAILED DESCRIPTION

[0031] Example 1: See Figure 1-8, an underground space ventilation, lighting, and early warning integrated machine, comprising a box-shaped casing 1, a filter plate 2, a columnar DC fan 3, an air duct 4, an LED light strip 5, an alarm light 6, and a standby power supply 7; the box-shaped casing 1 installs the filter plate 2, the columnar DC fan 3, and the standby power supply 7 inside the box-shaped casing 1 to protect the filter plate 2, the columnar DC fan 3, and the standby power supply 7; a connecting pipe 11 connected to the air duct 4 is provided at a high position on the front wall of the box-shaped casing 1, so that the forward airflow or reverse airflow output by the columnar DC fan 3 acts on the air duct 4; the forward airflow acts on the air duct 4 to send fresh air into the underground space through the air duct 4; the reverse airflow acts on the air duct 4 to extract the polluted air from the underground space through the air duct 4; the box-shaped casing 1 is provided with a plurality of air ducts 11, 12 and 13. A filter plate 2 is vertically provided at the top; the filter plate 2 covers the vertical cross-section in the middle of the box-shaped casing 1; the filter plate 2 can allow the passage of both forward and reverse airflows; when the reverse airflow passes through the filter plate 2, the dust, impurities, etc. in the polluted air will be isolated at the front of the box-shaped casing 1, so as to prevent these dust and impurities from entering the interior of the columnar DC fan 3 and causing structural damage; when the forward airflow passes through the filter plate 2, these dust and impurities are carried by the forward airflow and impact the front wall of the box-shaped casing 1, and remain in the front of the box-shaped casing 1 in the form of sticking to the front wall of the box-shaped casing 1; a U-shaped mounting plate 12 with an opening facing upward is provided on the inner wall of the rear wall of the box-shaped casing 1; a ventilation hole 13 with a closed end of the U-shaped mounting plate 12 is provided on the rear wall of the box-shaped casing 1; forward and reverse airflows The directional airflow is connected to the outside through the ventilation holes 13; the side walls of the box-shaped housing 1 are provided with external wires 14 connected to the external DC power supply and an alarm light 6; the columnar DC fan 3 includes a columnar body 31 in the middle and flanges 32 at the front and rear ends; the inner edge of the rear end of the U-shaped mounting plate 12 is provided with a card groove 121 corresponding to the flange 32; the columnar body 31 is attached to the closed end of the U-shaped mounting plate 12; the flange 32 at the rear end is snapped into the inside of the card groove 121; the columnar DC fan 3 is installed on the U-shaped plate; the columnar DC fan 3 can change the direction of the airflow it outputs by turning horizontally, that is, the conversion between forward airflow and reverse airflow; the LED light strip 5 is spirally wrapped around the outer wall of the air duct 4 and glued to the outer wall of the air duct 4; the LED light can be adjusted The air duct 4 enters the underground space to illuminate the underground space; the standby power supply 7 is arranged inside the box-shaped casing 1; the columnar DC fan 3 and the LED light strip 5 are electrically connected to the external wire 14; the external wire 14 connects the columnar DC fan 3 and the LED light strip 5 to the external DC power supply to provide electricity for normal use; the columnar DC fan 3, the LED light strip 5, and the alarm light 6 are electrically connected to the standby power supply 7; when the external wire 14 is powered off, the standby power supply 7 supplies power to the columnar DC fan 3, the LED light strip 5, and the alarm light 6; the alarm light 6 alerts the construction workers to evacuate quickly; the columnar DC fan 3 and the LED light strip 5 provide ventilation and lighting for a period of time during the rapid evacuation to ensure the safe evacuation of the construction workers.

[0032] Compared with existing technologies, the present invention can change the output air direction by horizontally rotating the columnar DC fan 3. That is, the columnar DC fan 3 rotates horizontally, switching between forward and reverse airflow. For large underground spaces, the present invention rotates the horizontal pipes of the columnar DC fan 3 after a period of operation. The air duct 4 that originally outputs forward airflow to the underground space is converted to using reverse airflow to extract polluted air. The air duct 4 that originally used reverse airflow to extract polluted air from the underground space is converted to using forward airflow to deliver fresh air. This shortens the time it takes to evenly distribute fresh air.

[0033] The underground space ventilation, lighting and early warning integrated machine also includes mounting bolts; the rear wall of the box-shaped casing 1 is also provided with a fixing through-hole 15; the fixing through-hole 15 is arranged above the ventilation hole 13 and corresponds to the flange 32; the mounting bolt passes through the fixing through-hole 15 and is connected to the flange 32 to increase the stability of the columnar DC fan 3.

[0034] A vertical notch 161, an upper flip cover 162 and a hinge 163 matching the vertical notch 161 are provided on the top rear side of the box-shaped casing 1; the inner edge of the upper flip cover 162 is connected to the top front side of the box-shaped casing 1 through the hinge 163; the vertical notch 161 is set above the columnar DC fan 3; the upper flip cover 162 cooperates with the vertical notch 161, on the one hand to ensure the airtightness of the interior of the box-shaped casing 1, so as to ensure that the wind force generated by the columnar DC fan 3 is used on the air duct 4 as much as possible, and on the other hand it is also convenient to operate the installation and adjustment of the columnar DC fan 3 and the standby power supply 7.

[0035] A sealing gasket A 1621 is provided on the outer edge of the bottom of the upper cover 162; a sealing gasket B 1611 matching the sealing gasket A 1621 is provided on the upper edge of the vertical notch 161; the sealing gasket A 1621 and the sealing gasket B 1611 cooperate with each other to increase the airtightness when the upper cover 162 is buckled on the vertical notch 161.

[0036] A horizontal notch 171, a side door 172 matching the horizontal notch 171, and a hinge B 173 are provided at a lower position on one side of the front end of the box-shaped casing 1; one end of the side door 172 is connected to the side wall of the box-shaped casing 1 through the hinge B 173; the side door 172 is mainly used to discharge dust, impurities, etc. isolated in the front of the box-shaped casing 1 to the outside.

[0037] The underground space ventilation, lighting and early warning integrated machine also includes a spring lock 8; the upper cover 162 and the side door 172 are connected to the box-shaped casing 1 through the spring lock 8 to ensure a closed environment inside the box-shaped casing 1 to ensure that the forward airflow / reverse airflow generated by the columnar DC fan 3 acts on the air duct 4 as much as possible.

[0038] An insertion slot 18 matching the filter plate 2 is provided in the middle of the top of the box-shaped casing 1; the insertion slot 18 extends from the top of the box-shaped casing 1 to the bottom of the box-shaped casing 1; the filter plate 2 is inserted into the insertion slot 18; the insertion slot 18 can facilitate the installation and replacement of the filter plate 2.

[0039] The insertion groove 18 passes through the left and right inner walls of the box-shaped casing 1 ; the insertion groove 18 limits the filter plate 2 horizontally to ensure the vertical stability of the filter plate 2 .

[0040] A clamping block 21 is provided on the top of the filter plate 2 ; the horizontal cross-sectional area of the clamping block 21 is greater than the slot area of the insertion slot 18 ; the clamping block 21 can facilitate the installation and replacement of the filter plate 2 .

[0041] A handle 22 is provided at the top center of the clamping block 21 to facilitate installation and replacement of the filter plate 2 .

[0042] See also Figure 8 , this embodiment provides a set of working circuit diagrams that meet the requirements of the underground space ventilation, lighting, and early warning all-in-one machine; the working circuit diagram includes a double-pole main switch 01, a DC relay 02, a standby power supply 7, an LED light strip 5, a motor 03 of a columnar DC fan, and an alarm light 6; the double-pole main switch 01 is provided with a linked first sub-switch 011 and a second sub-switch 012; the DC relay 02 controls a normally open switch 021, a first normally closed switch 022, and a second normally closed switch 023; the positive pole of the DC power supply is connected to the negative pole of the DC power supply through the first sub-switch 011 and the DC relay 02 in sequence; the normally open switch 021, the second sub-switch 012, and the first normally closed switch 022 are connected in series, and their two ends are respectively connected to the positive pole and the negative pole of the DC power supply; the two ends of the LED light strip 5 and the motor 03 of the columnar DC fan are connected in parallel to the two ends of the first sub-switch 011 and the first normally closed switch 022 connected in series; the two ends of the second normally closed switch 023 and the alarm light 6 are respectively connected to the two ends of the LED light strip 5.

[0043] Working description of this working circuit diagram:

[0044] If the double-pole main switch 01 is in the off state, the DC relay 02, the LED light strip 5, the motor 03 of the columnar DC fan, and the alarm light 6 are all in the off state;

[0045] When the external DC power supply is normal and the double-pole main switch 01 is in the closed state, the DC relay 02 is connected to the current; the normally open switch 021 is closed; the first normally closed switch 022 and the second normally closed switch 023 are opened; the external DC power supply is used to power the LED light strip 5 and the motor of the DC fan, and is not connected to the standby power supply 7 and the alarm light 6;

[0046] When the external DC power supply cannot supply power normally and the double-pole main switch 01 is in the closed state, the DC relay 02 is de-energized and the normally open switch 021 returns to the open state; the first normally closed switch 022 and the second normally closed switch 023 return to the closed state; the standby power supply 7 cannot supply power to the DC relay 02 due to the open state of the normally open switch 021; the standby power supply 7 can supply power to the LED light strip 5, the motor 03 of the columnar DC fan, and the alarm light 6.

[0047] The working principle of this embodiment is as follows: the filter plate 2 can allow the passage of both forward and reverse airflows; when the reverse airflow passes through the filter plate 2, the dust and impurities in the polluted air will be isolated in the front of the box-shaped casing 1, so as to prevent these dust and impurities from entering the interior of the columnar DC fan 3 and causing structural damage; when the forward airflow passes through the filter plate 2, these dust and impurities are carried by the forward airflow and impact the front wall of the box-shaped casing 1, and remain in the front of the box-shaped casing 1 in the form of being attached to the front wall of the box-shaped casing 1; the columnar DC fan 3 is mounted on the U-shaped plate; the columnar DC fan 3 can change its The output airflow direction, that is, the conversion between forward airflow and reverse airflow; the LED lights can enter the underground space along the air duct 4 to illuminate the underground space; the external wires 14 connect the columnar DC fan 3 and the LED light strip 5 to the external DC power supply to provide normal electricity; when the external wires 14 are powered off, the standby power supply 7 supplies power to the columnar DC fan 3, the LED light strip 5, and the alarm light 6; the alarm light 6 alerts the construction workers to evacuate quickly; the columnar DC fan 3 and the LED light strip 5 provide ventilation and lighting for a period of time during rapid evacuation to ensure the safe evacuation of the construction workers.

[0048] Example 2: Example 2 is basically the same as Example 1, and the similarities will not be repeated. The differences are: the underground space ventilation, lighting, and early warning integrated machine also includes a pipe clamp 9; the air duct 4 is a hose made of elastic material; the end of the air duct 4 is connected to the connecting pipe 11 through the pipe clamp 9; the pipe clamp 9 can ensure the airtightness of the connection between the air duct 4 and the connecting pipe 11.

[0049] The end of the connecting pipe 11 is provided with an outwardly extending flange 111; the end of the air duct 4 covers the flange 111 and is connected to the connecting pipe 11 through the pipe clamp 9; the flange 111 can limit the pipe clamp 9 to prevent the air duct 4 from falling off from the connecting pipe 11.

Claims

1. An underground space ventilation, lighting, and warning integrated machine, characterized in that: The machine comprises a box-shaped casing, a filter plate, a columnar DC fan, an air duct, an LED light strip, an alarm light, and a standby power supply. A connecting pipe connected to the air duct is provided at a high position on the front wall of the box-shaped casing. A filter plate is provided vertically in the middle of the box-shaped casing. The filter plate covers the vertical cross-section of the middle of the box-shaped casing. A U-shaped mounting plate with an upward opening is provided on the inner wall of the rear wall of the box-shaped casing. A ventilation hole is provided on the rear wall of the box-shaped casing, which is closed by the U-shaped mounting plate. External wires connected to the external DC power supply and an alarm light are provided on the side walls of the box-shaped casing. The columnar DC fan includes a columnar main body in the middle and flanges at the front and rear ends; a slot corresponding to the flange is provided on the inner edge of the rear end of the U-shaped mounting plate; the columnar main body is attached to the closed end of the U-shaped mounting plate; the flange at the rear end is snapped into the slot; the LED light strip is spirally wrapped around the outer wall of the air duct and glued to the outer wall of the air duct; the standby power supply is arranged inside the box-shaped casing; the columnar DC fan and LED light strip are electrically connected to the external wires; the columnar DC fan, LED light strip, and alarm light are all electrically connected to the standby power supply.

2. The underground space ventilation, lighting, and warning integrated device according to claim 1 is characterized by: It also includes mounting bolts; the rear wall of the box-shaped casing is also provided with a fixing through hole; the fixing through hole is arranged above the ventilation hole and corresponds to the flange; the mounting bolt is connected to the flange after passing through the fixing through hole.

3. The underground space ventilation, lighting, and warning integrated device according to claim 1 is characterized by: The rear side of the top of the box-shaped casing is provided with a vertical notch, an upper cover and a hinge armor matching the vertical notch; the inner edge of the upper cover is connected to the front side of the top of the box-shaped casing through the hinge armor; the vertical notch is arranged above the columnar DC fan.

4. The underground space ventilation, lighting, and warning integrated device according to claim 3 is characterized by: A sealing gasket A is provided on the outer edge of the bottom of the upper flip cover; and a sealing gasket B matching the sealing gasket A is provided on the upper edge of the vertical notch.

5. The underground space ventilation, lighting, and warning integrated device according to claim 1 or 3, characterized in that: A horizontal notch, a side door and hinge B matching the horizontal notch are arranged at a lower position on one side of the front end of the box-shaped casing; one end of the side door is connected to the side wall of the box-shaped casing through hinge B.

6. The underground space ventilation, lighting, and warning integrated device according to claim 5 is characterized by: It also includes a spring lock; the upper cover and the side door are connected to the box-shaped casing through the spring lock.

7. The underground space ventilation, lighting, and warning integrated device according to claim 1 is characterized by: An insertion groove corresponding to the filter plate is provided at the top middle of the box-shaped casing; the insertion groove extends from the top to the bottom of the box-shaped casing; the filter plate is inserted into the insertion groove.

8. The underground space ventilation, lighting, and warning integrated device according to claim 7 is characterized by: The insertion groove passes through the left and right inner walls of the box-shaped casing.

9. The underground space ventilation, lighting, and warning integrated device according to claim 7, characterized in that: A clamping block is provided on the top of the filter plate; the horizontal cross-sectional area of the clamping block is greater than the notch area of the insertion groove.

10. The underground space ventilation, lighting, and warning integrated device according to claim 9, characterized in that: There is a carry handle at the top center of the card block.

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