Vehicle-mounted fire-fighting fan

Abstract

The invention belongs to the field of fire-fighting smoke exhaust equipment, and discloses a vehicle-mounted fire-fighting fan which is used for being assembled on a vehicle body of a movable rail vehicle, the vehicle body comprises a vehicle head part and a vehicle tail part, the vehicle head part is provided with a first fan assembly and an angle adjusting assembly used for adjusting the dip angle of the first fan assembly, and the vehicle tail part is provided with a second fan assembly. The first fan assembly comprises an exhaust fan and a telescopic pipe arranged at one end of an air inlet of the exhaust fan, a function assembly is arranged on the tail portion of the vehicle, a second fan assembly is further arranged on the top of the function assembly, the second fan assembly comprises an exhaust fan, and the exhaust fan is arranged on the top of the function assembly. The angle adjusting assembly can adjust the supporting height of the first draught fan assembly, so that the telescopic pipe of the first draught fan assembly can be in butt joint with the exhaust fan of the second draught fan assembly after extending. According to the vehicle-mounted fire-fighting fan, the air exhaust distance can be effectively increased, and the problem that smoke exhaust is difficult in special occasions is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of fire smoke exhaust, and in particular to a vehicle-mounted fire-fighting fan, which is especially suitable for fire smoke exhaust in narrow spaces such as subway tunnels. Background Art

[0002] The vehicle-mounted fire-fighting fan is equipped with a fan and an air duct on the vehicle, which is used for smoke exhaust or forced ventilation in the fire scene, so that firefighters can enter the burning building to extinguish the fire and rescue. In the prior art, in order to increase the exhaust or smoke exhaust effect, a high-power exhaust fan or a matrix-type multi-group exhaust fan is used to increase the exhaust power. Although the exhaust volume can be increased, for occasions where the fire location is high or remote, even a high-power exhaust fan is difficult for the wind to reach the designated location or when it reaches the location where smoke exhaust is required, the wind volume has been sharply reduced, making it difficult to achieve a good smoke exhaust effect.

[0003] When a fire occurs in a narrow space such as a subway tunnel, the smoke will generally spread in the length direction of the subway tunnel. Ordinary exhaust fans can only exhaust smoke over a short distance, and it is difficult to achieve a good smoke exhaust effect in such a narrow space. Summary of the invention

[0004] In view of the problems in the prior art of low exhaust volume and poor smoke exhaust effect of exhaust fans in narrow spaces such as subway tunnels, the present invention provides a vehicle-mounted fire-fighting fan that can improve the long-distance smoke exhaust capacity and thus improve the smoke exhaust effect.

[0005] The present invention is achieved through the following technical solutions:

[0006] A vehicle-mounted fire-fighting fan is used to be assembled on a movable rail vehicle body, the body including a front part and a rear part, the body part is provided with a first fan assembly and an angle adjustment assembly for adjusting the inclination angle of the first fan assembly, the first fan assembly includes an exhaust fan and a telescopic tube arranged at one end of the air inlet of the exhaust fan, the rear part is provided with a functional assembly, the top of the functional assembly is also provided with a second fan assembly, the second fan assembly includes an exhaust fan, and the angle adjustment assembly can adjust the support height of the first fan assembly so that the telescopic tube of the first fan assembly can be extended and docked with the exhaust fan of the second fan assembly.

[0007] Optionally, the second fan assembly also includes an air duct, which is arranged at one end of the air outlet of the exhaust fan. The air duct is made of rigid material, and the inner diameter of the air duct is one half to two thirds of the inner diameter of the telescopic tube at the maximum extension extent. The telescopic tube can be extended and inserted into the air duct.

[0008] Optionally, a sealing ring is further provided on the air duct, and an elastic supporting component is further provided on one side of the sealing ring. When the telescopic tube is inserted into the air duct, the sealing ring can maintain contact and closure with the end face of the air duct through the support of the elastic supporting component.

[0009] Optionally, the angle adjustment assembly includes a first support member, a first hydraulic cylinder, a support platform and a second hydraulic cylinder, one end of the first support member is hingedly connected to the front of the vehicle, the rod end of the first hydraulic cylinder is hingedly connected to the first support member, the support platform is hingedly connected to the first support member, the second hydraulic cylinder is hingedly connected to the first support member, and the lever end of the second hydraulic cylinder is hingedly connected to the support platform.

[0010] Optionally, the support platform is arranged with a first linear slide rail, and the movable end of the telescopic tube is slidably arranged along the first linear slide rail. The functional assembly is provided with a second linear slide rail, and the movable end of the telescopic tube can slide into the second linear slide rail and thus be inserted into the air duct; the second linear slide rail and the first linear slide rail are both provided with a pin hole structure, and when the movable end of the telescopic tube slides to a corresponding position, the movable end of the telescopic tube can be positioned by inserting a pin into the pin hole structure.

[0011] Optionally, the telescopic tube includes an intermediate reinforcement ring, the pin hole structure on the first linear slide rail includes a reinforcement ring pin hole and a movable end pin hole, the telescopic tube can be extended to the movable end to engage with the pin hole structure of the second linear slide rail, and the intermediate reinforcement ring can engage with the movable end pin hole pin.

[0012] Optionally, a third linear slide rail is further provided on the support platform, and the exhaust fan can be arranged on the third linear slide rail in a manner of sliding along the third linear slide rail; an arc guide rail is also provided on the support platform, and the arc guide rail and the third linear slide rail both adopt a groove structure, and the arc guide rail is connected to the third linear slide rail at one end thereof, and the exhaust fan can slide in the third linear slide rail by being configured with a support roller, and can slide into the arc guide rail through the connecting portion.

[0013] Optionally, the support platform also includes a semicircular support platform, the end of the arc guide rail is arranged on the semicircular support platform, the semicircular support platform is arranged with an arc rack, and a drive motor is arranged on the support platform. The output end of the drive motor is provided with a drive gear meshing with the arc rack, thereby driving the semicircular support platform to rotate.

[0014] Optionally, two semicircular support platforms are provided, which are symmetrically arranged on both sides of the support platform.

[0015] Optionally, the air outlet of the exhaust fan is provided with a spray head.

[0016] The technical solution of the present invention has at least the following beneficial effects:

[0017] The vehicle-mounted fire-fighting fan of the present invention is provided with a first fan assembly and a second fan assembly. In a subway tunnel, in the case of a small fire or a small smoke, normal high-power exhaust can be achieved through the first fan assembly to complete basic smoke exhaust work; and the supporting height of the first fan assembly can be adjusted through the angle adjustment assembly, so that the first fan assembly can be lifted to a height for docking with the second fan assembly. After docking is formed through the telescopic tube, the second fan assembly can provide exhaust and the first fan assembly can complete exhaust, thereby increasing the air volume. At the same time, a long tube structure is formed by the telescopic tube, which can increase the transmission distance of the wind, thereby providing stronger wind force for long-distance occasions and improving the smoke exhaust effect in the subway tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view of the vehicle-mounted fire-fighting fan of the present invention;

[0019] Figure 2 It is a schematic diagram of the angle adjustment state of the vehicle-mounted fire fighting fan of the present invention;

[0020] Figure 3 It is a schematic diagram of the state of the first blower assembly and the second blower assembly of the vehicle-mounted fire-fighting blower of the present invention before being connected;

[0021] Figure 4 It is a schematic diagram of the state after the first fan assembly and the second fan assembly of the vehicle-mounted fire fighting fan of the present invention are docked;

[0022] Figure 5 A top view of one implementation method of the vehicle-mounted fire-fighting fan of the present invention;

[0023] Figure 6 A top view of another implementation method of the vehicle-mounted fire-fighting fan of the present invention;

[0024] Icons: 10-vehicle body, 11-vehicle front, 12-vehicle rear, 20-functional assembly, 30-second fan assembly, 31-air guide duct, 32-exhaust fan, 33-elastic support component, 34-sealing ring, 35-second linear slide rail, 40-first fan assembly, 41-telescopic tube, 42-middle reinforcement ring, 43-exhaust fan, 44-first linear slide rail, 45-third linear slide rail, 46-arc guide rail, 47-semicircular support platform, 50-angle adjustment assembly, 51-first hydraulic cylinder, 52-first support member, 53-second hydraulic cylinder, 54-support platform. DETAILED DESCRIPTION

[0025] Reference Figure 1-6The vehicle-mounted fire-fighting fan of the present invention is used to be mounted on the body 10 of a movable rail vehicle. The bottom of the body 10 is integrated with a power assembly, and can travel on the subway track. When a fire occurs, the vehicle body 10 can travel on the subway track and reach the fire scene in time. The body 10 includes a front part 11 and a rear part 12. The rear part 12 is integrated with a functional assembly 20. The functional assembly 20 of this embodiment mainly includes various exhaust auxiliary functional components such as a water tank and a water pump.

[0026] Specifically, the front part 11 of the vehicle is provided with a first fan assembly 40 and an angle adjustment assembly 50 for adjusting the inclination angle of the first fan assembly 40, the first fan assembly 40 includes an exhaust fan 43 and a telescopic tube 41 arranged at one end of the air inlet of the exhaust fan 43, and the functional assembly 20 of the rear part 12 of the vehicle is provided with a second fan assembly 30, the second fan assembly 30 includes an exhaust fan 32, and the angle adjustment assembly 50 can adjust the support height of the first fan assembly 40 so that the telescopic tube 41 of the first fan assembly 40 can be extended and docked with the exhaust fan 32 of the second fan assembly 30.

[0027] The angle adjustment component 50 can be used to adjust the exhaust fan 43 of the first fan component 40 toward the position where smoke needs to be exhausted. When the exhaust fan 43 is started, exhaust can be achieved. The fan adopts a high-power fan with an impeller speed of 2400rpm and a power of 65-70KW. The fan air volume can reach 100,000 cubic meters per hour. The angle adjustment component 50 is mainly composed of a hydraulic cylinder, which can achieve the adjustment requirements of the angles such as up and down pitch, left and right horizontal rotation, etc. In this embodiment, refer to Figure 2 and Figure 3 The angle adjustment assembly 50 includes a first support member 52, a first hydraulic cylinder 51, a support platform 54 and a second hydraulic cylinder 53. One end of the first support member 52 is hingedly connected to the vehicle head 11, the cylinder rod end of the first hydraulic cylinder 51 is hingedly connected to the first support member 52, the support platform 54 is hingedly connected to the first support member 52, the second hydraulic cylinder 53 is hingedly connected to the first support member 52, and the lever end of the second hydraulic cylinder 53 is hingedly connected to the support platform 54. Through the hydraulic control system, the extension and retraction of the first hydraulic cylinder 51 and the second hydraulic cylinder 53 can be controlled to achieve the coordination of the up and down pitch angles. In this embodiment, a rotating disk can also be integrated on the vehicle head 11, and the rotation can be achieved by meshing the disc-shaped rack and the gear. By integrating the entire angle adjustment assembly 50 into the rotating disk, the horizontal rotation adjustment can be achieved, and the exhaust fan 43 can be exhausted toward the required angle.

[0028] Although smoke exhaust can be basically achieved in most cases by relying on a high-power exhaust fan 43 and a large-angle angle adjustment component 50, for narrow spaces such as subway tunnels, when the fire or smoke is large, the car body 10 cannot reach the place that is far away, and the wind exhausted by the exhaust fan 43 cannot reach the required place. Therefore, this problem can be effectively compensated by setting a second fan assembly 30. The second fan assembly 30 also includes an air duct 31, which is arranged at one end of the air outlet of the exhaust fan 32. The air duct 31 is made of rigid material, and the inner diameter of the air duct 31 is one-half to two-thirds of the inner diameter of the maximum extension of the telescopic tube 41. Under such a pipe diameter, the exhaust volume, wind pressure, etc. reach the optimal state, and the telescopic tube 41 can be extended and inserted into the air duct 31. The exhaust fan 32 and the telescopic tube 41 adopt a small diameter structure, which can provide a larger wind pressure. Compared with the large diameter exhaust fan 43, the wind pressure is greater and the wind transmission distance is farther. The present invention adjusts the telescopic tube 41 of the first fan assembly 40 and the exhaust fan 43 to the same height as the air guide 31 of the second fan assembly 30 through the adjustment component, and then the telescopic tube 41 is extended to insert the telescopic tube 41 into the air guide 31, so that the first fan assembly 40 and the second fan assembly 30 are effectively connected. Relying on the high-power exhaust of the first fan assembly 40 and the long distance and exhaust of the second fan assembly 30, the wind transmission distance and wind volume can be increased, the smoke exhaust effect is improved, and it can also have a good smoke exhaust effect for long-distance or high-position smoke exhaust.

[0029] The air duct 31 is also provided with a blocking ring 34, and an elastic support component 33 is also provided on one side of the blocking ring 34. When the telescopic tube 41 is inserted into the air duct 31, the blocking ring 34 can be supported by the elastic support component 33 so as to keep in contact and close with the end face of the air duct 31. The elastic support component 33 is supported by elastic components such as gas springs and spiral springs. After the telescopic tube 41 is inserted into the air duct 31, the blocking ring 34 can be squeezed to compress the elastic support component 33. After the telescopic tube 41 is fixed, the elastic support component 33 provides elastic force to the blocking ring 34 to keep it able to block the gap between the air duct 31 and the telescopic tube 41 to prevent air leakage.

[0030] Reference Figure 5The support platform 54 is provided with a first linear slide rail 44, and the movable end of the telescopic tube 41 is arranged to slide along the first linear slide rail 44. The functional assembly 20 is provided with a second linear slide rail 35, and the movable end of the telescopic tube 41 can slide into the second linear slide rail 35 and thus be inserted into the air duct 31. The first linear slide rail 44 and the second linear slide rail 35 ensure that the telescopic tube 41 can slide smoothly into the air duct 31 to complete the docking. The second linear slide rail 35 and the first linear slide rail 44 are both provided with a pin hole structure, and when the movable end of the telescopic tube 41 slides to the corresponding position, the movable end of the telescopic tube 41 can be positioned by inserting a pin into the pin hole structure. After the telescopic tube 41 is inserted into the air duct, it continues to move until it moves to the position with the pin hole structure on the second linear slide rail 35. The positioning pin is inserted to position the telescopic tube 41 to achieve the docking of the first fan assembly 40 and the second fan assembly 30; when docking is not required, the pin is removed, the telescopic tube 41 is retracted, and other components are naturally reset.

[0031] The telescopic tube 41 includes an intermediate reinforcement ring 42. The telescopic tube 41 can adopt a section of bellows structure, and the intermediate reinforcement ring 42 is sleeved on the outer side or inner side of the middle part to improve the strength of the middle part; or it can adopt a bellows structure at both ends, and the intermediate reinforcement ring 42 is connected in the middle. It can also be realized that the intermediate reinforcement ring 42 is made of rigid material, such as steel, which effectively improves the strength of the middle part of the telescopic tube 41. The pin hole structure on the first linear slide 44 includes a reinforcement ring pin hole and a movable end pin hole. When it is not necessary to dock with the second fan assembly 30, the intermediate reinforcement ring 42 and the movable end of the telescopic tube 41 are respectively positioned in the corresponding pin holes by a latch. When it is necessary to dock with the second fan assembly 30, the telescopic tube 41 can be extended to the movable end to engage with the pin hole structure of the second linear slide 35, and the intermediate reinforcement ring 42 can engage with the movable end pin hole to complete the docking fixation.

[0032] Since the middle reinforcing ring 42 is provided to strengthen the middle part of the telescopic tube 41, after the first fan assembly 40 and the second fan assembly 30 are connected, the angle of this side of the first fan assembly 40 can also be adjusted through the angle adjustment assembly 50. After the middle reinforcing ring 42 is strengthened, the telescopic tube 41 at the connecting part can maintain a good near-cylindrical structure, and the telescopic tube 41 will not collapse due to the pitch adjustment or rotation adjustment of one end.

[0033] Reference Figure 5In order to better achieve the horizontal angle adjustment of the air outlet in a small range after the first fan assembly 40 and the second fan assembly 30 are connected, a third linear slide rail 45 is also provided on the support platform 54, and the exhaust fan 43 can be arranged on the third linear slide rail 45 in a sliding manner along the third linear slide rail 45; an arc guide rail 46 is also provided on the support platform 54, and the arc guide rail 46 and the third linear slide rail 45 both adopt a groove structure, and the arc guide rail is connected to the third linear slide rail 45 at one end. The exhaust fan 43 can slide in the third linear slide rail 45 by configuring a support roller, and can slide into the arc guide rail 46 through the connecting part. One end of the exhaust fan 43 can be withdrawn to the end of the third linear slide rail 45, and then slide into the arc guide rail 46, that is, the air outlet adjustment of approximately 90 degrees is achieved.

[0034] Reference Figure 6 The present invention also provides another embodiment, the support platform 54 also includes a semicircular support platform 47, the end of the arc-shaped guide rail 46 is arranged on the semicircular support platform 47, the semicircular support platform 47 is arranged with an arc-shaped rack, and a driving motor is arranged on the support platform 54. The output end of the driving motor is provided with a driving gear meshing with the arc-shaped rack, so as to drive the semicircular support platform 47 to rotate. The arc-shaped rack is driven by the driving motor to rotate, and the semicircular support platform 47 can be driven to rotate, so that the exhaust fan 43 can be rotated in a small range to achieve fine adjustment of the angle in the horizontal position. Of course, this angle is generally not too large.

[0035] There are two semicircular support platforms 47 symmetrically arranged on both sides of the support platform 54 , so that adjustment can be achieved on both sides.

[0036] The air outlet of the exhaust fan 43 is provided with a spray head, which is connected to the water pump and water tank on the rear part 12 of the vehicle, so that water mist can be blown out when exhausting air to improve the dust reduction effect. The spray head here adopts the structure of an atomizing spray head. By integrating the spray head on the exhaust fan 43, when a fire occurs in the subway tunnel, the vehicle body 10 can move toward the fire location, and the exhaust fan 43 on the front part 11 can be used to spray and cool down the smoke in front, so that a passage can be opened for firefighters to reach the fire scene, avoiding the difficulty of firefighters or firefighting equipment to reach the fire scene in the subway tunnel due to the large amount of smoke and high temperature.

Claims

1. A vehicle-mounted fire-fighting fan, used for being assembled on a movable rail vehicle body, the vehicle body comprising a front part and a rear part, the front part being provided with a first fan assembly and an angle adjustment assembly for adjusting the inclination angle of the first fan assembly, characterized in that: The first fan assembly includes an exhaust fan and a telescopic tube arranged at one end of the air inlet of the exhaust fan. The rear of the vehicle is provided with a functional assembly, and a second fan assembly is also provided on the top of the functional assembly. The second fan assembly includes an exhaust fan. The angle adjustment assembly can adjust the support height of the first fan assembly so that the telescopic tube of the first fan assembly can be extended and docked with the exhaust fan of the second fan assembly.

2. The vehicle-mounted fire-fighting fan according to claim 1, characterized in that: The second fan assembly also includes an air duct, which is arranged at one end of the air outlet of the exhaust fan. The air duct is made of rigid material. The inner diameter of the air duct is one-half to two-thirds of the inner diameter of the telescopic tube at its maximum extension. The telescopic tube can be extended and inserted into the air duct.

3. The vehicle-mounted fire-fighting fan according to claim 2, characterized in that: The air duct is also provided with a sealing ring, and an elastic supporting component is also provided on one side of the sealing ring. When the telescopic tube is inserted into the air duct, the sealing ring can maintain contact and closure with the end face of the air duct through the support of the elastic supporting component.

4. The vehicle-mounted fire-fighting fan according to claim 2, characterized in that: The angle adjustment assembly includes a first support member, a first hydraulic cylinder, a support platform and a second hydraulic cylinder. One end of the first support member is hingedly connected to the vehicle head, the cylinder rod end of the first hydraulic cylinder is hingedly connected to the first support member, the support platform is hingedly connected to the first support member, the second hydraulic cylinder is hingedly connected to the first support member, and the lever end of the second hydraulic cylinder is hingedly connected to the support platform.

5. The vehicle-mounted fire-fighting fan according to claim 4, characterized in that: The support platform is arranged with a first linear slide rail, and the movable end of the telescopic tube is slidably arranged along the first linear slide rail. The functional assembly is provided with a second linear slide rail, and the movable end of the telescopic tube can slide into the second linear slide rail and thus be inserted into the air guide duct; the second linear slide rail and the first linear slide rail are both provided with a pin hole structure, and when the movable end of the telescopic tube slides to the corresponding position, the movable end of the telescopic tube can be positioned by inserting a pin into the pin hole structure.

6. The vehicle-mounted fire-fighting fan according to claim 5, characterized in that: The telescopic tube includes an intermediate reinforcement ring, and the pin hole structure on the first linear slide rail includes a reinforcement ring pin hole and a movable end pin hole. The telescopic tube can be extended to the movable end to engage with the pin hole structure of the second linear slide rail, and the intermediate reinforcement ring can engage with the movable end pin hole.

7. The vehicle-mounted fire-fighting fan according to claim 5, characterized in that: A third linear slide rail is also provided on the support platform, and the exhaust fan can be arranged on the third linear slide rail in a manner of sliding along the third linear slide rail; an arc guide rail is also provided on the support platform, and the arc guide rail and the third linear slide rail both adopt a groove structure, and the arc guide rail is connected to the third linear slide rail at one end thereof, and the exhaust fan can slide in the third linear slide rail by being configured with a support roller, and can slide into the arc guide rail through the connecting portion.

8. The vehicle-mounted fire-fighting fan according to claim 7, characterized in that: The support platform also includes a semicircular support platform, the end of the arc guide rail is arranged on the semicircular support platform, the semicircular support platform is arranged with an arc rack, a drive motor is arranged on the support platform, and the output end of the drive motor is provided with a drive gear meshing with the arc rack, thereby driving the semicircular support platform to rotate.

9. The vehicle-mounted fire-fighting fan according to claim 8, characterized in that: There are two semicircular support platforms, which are symmetrically arranged on both sides of the support platform.

10. The vehicle-mounted fire-fighting fan according to claim 1, characterized in that: The air outlet of the exhaust fan is provided with a spray head.

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