Fire ladder for fire fighting

Abstract

The utility model discloses a fire ladder for fire fighting, which comprises a base, a hinged support is fixed on the base, a long rod is mounted on the hinged support, a first ladder is hinged on the hinged support through the long rod, two circular rings are fixed at the joint of the long rod and the hinged support, and a second plate body and a third plate body are respectively fixed at two ends of two sides of the first ladder. A moving mechanism is fixed between the second plate body and the third plate body, a second ladder is installed on the moving mechanism, and a U-shaped frame is fixed to one side of the top end of the second ladder. According to the fire ladder, the rotation of the first ladder is realized through the long rod, so that the placement angle of the first ladder can be adjusted, the fire ladder is suitable for different angle placement requirements of a user when the fire ladder is placed and used, and the two side plates and the pedals of the first ladder form a ladder framework; the friction area of the top end face of the pedal can be increased through the second transverse plate, the contact face of the foot sole and the pedal when the user climbs the ladder is increased, and the climbing stability is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of fire-fighting assistance, in particular to a fire-fighting ladder for fire-fighting. Background Art

[0002] "Firefighting" means eliminating hidden dangers and preventing disasters, that is, preventing and solving man-made, natural and accidental disasters encountered by people in the process of life, work and study. It mainly includes the rescue of personnel at the fire scene, the rescue of important facilities and equipment, cultural relics, the safety protection and rescue of important property, and the extinguishing of fires. The purpose is to reduce the degree of damage caused by fires, reduce casualties and property losses. With the progress of society and the improvement of people's living standards, in order to enhance everyone's fire safety awareness and legal concepts, we will publicize fire prevention knowledge to everyone. The purpose is to improve students' fire safety awareness and self-defense, self-rescue and self-escape capabilities, avoid the occurrence of fire accidents, and reduce the losses caused by fire accidents. Therefore, the modern meaning of "firefighting" can be more deeply understood as eliminating dangers and preventing disasters. The devices and equipment used for firefighting mainly include fire monitors, fireproof and heat-insulating clothing, and fire hydrants. , fire alarm, fire detection equipment, fire ladder, fire filter respirator, fire blanket and fire blanket, fire sign, fire hose, fire smoke alarm, warming equipment, fire extinguisher, fire emergency light, fire indicator light, exit indicator light, indoor fire hydrant, fire suit, positive pressure air respirator, fire lifeline, flat axe, fire rubber boots, walkie-talkie, flashlight, high-frequency whistle, etc. Firefighting ladder is a ladder used for firefighting and rescue, usually made of metal material, with the characteristics of light weight, simple structure, easy to carry and operate. The use of fire ladder is very important for firefighting and rescue work, especially in high-rise building fires, because stairs and other passages may be blocked or damaged by smoke and fire, firefighters need to use fire ladders and other tools to quickly reach the fire floor for rescue. Therefore, the fire ladder is one of the necessary equipment for firefighters and one of the important tools for high-rise building fire rescue.

[0003] When the existing fire ladder is in use, the overall structure is unstable and potential safety hazards may occur. The use length is limited and it is not suitable for buildings that are too high, which affects the rescue efficiency. When the height of the ladder needs to be adjusted for use, the user needs to get down and readjust the height of the ladder, which increases the working time and reduces the working efficiency. During use, the fire ladder is not stable enough when leaning against the wall or the ground, which may easily cause the ladder to slip when the firefighters climb the ladder, causing injuries to the firefighters, affecting the firefighting work and posing a great safety hazard in use. Utility Model Content

[0004] The purpose of the utility model is to solve the problems in the prior art that the fire ladder for fire fighting is unstable in overall structure during use, which is prone to potential safety hazards, the use length is limited, and it is not suitable for buildings that are too high, which affects the rescue efficiency. When the height of the ladder needs to be adjusted for use, the user needs to get off and readjust the height of the ladder, which increases the working time and reduces the working efficiency. The fire ladder is not stable enough when it is used and leans against the wall or the ground, which easily causes the ladder to slip when the firefighters climb the ladder, causing injuries to the firefighters, affecting the firefighting work and posing a large safety hazard in use. A fire ladder for fire fighting is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A fire ladder for firefighting comprises a base, a hinge seat is fixed on the base, a long rod is installed on the hinge seat, a first ladder is hinged on the hinge seat through the long rod, two rings are fixed at the connection between the long rod and the hinge seat, a second plate body and a third plate body are respectively fixed on both ends of the first ladder, a moving mechanism is fixed between the second plate body and the third plate body, a second ladder is installed on the moving mechanism, and a "U"-shaped frame is fixed on one side of the top end of the second ladder.

[0007] Preferably, a bottom plate is fixed to the bottom end of the base, and first circular holes are provided on four corners of the base and the bottom plate.

[0008] Preferably, the first ladder includes a pedal and two side panels, a row of pedals is fixed between the two side panels, two blocks are fixed on both ends of the pedal, two fastening bolts are threadedly installed on the two blocks, and the pedal is installed between the two side panels through the two fastening bolts on the two blocks.

[0009] Preferably, a plurality of second circular holes are provided on both side panels, a second horizontal plate is fixed on the top surface of the pedal, and the first ladder and the second ladder have the same structure.

[0010] Preferably, the second plate body and the third plate body have the same specifications, an L-shaped plate body is fixed to one side of the third plate body, and the bottom end of the moving mechanism is fixed on the third plate body.

[0011] Preferably, the moving mechanism comprises a motor, a screw is fixed on the output shaft of the motor, a bearing is installed on the top end of the screw, the bearing is fixed on the second plate body, a threaded barrel is installed on the bearing, and the threaded barrel is fixed on the second ladder.

[0012] The utility model has the following beneficial effects:

[0013] 1. The utility model fixes the base on the top of the fire truck and realizes the rotation of the first ladder through a long rod, so that the placement angle of the first ladder can be adjusted, which is suitable for users to place the fire ladder at different angles when using it. The two side panels and the pedals of the first ladder constitute the ladder structure. The setting of the second cross plate can increase the friction area of ​​the top surface of the pedal, increase the contact area between the sole of the user's foot and the pedal when climbing the ladder, and ensure climbing stability.

[0014] 2. The second ladder of the utility model is fixed on the threaded barrel of the moving mechanism, and the motor drives the screw rod to rotate on the bearing of the second plate body. The threaded barrel on the screw rod can drive the second ladder to move, thereby increasing the height between the first ladder and the second ladder, which is convenient for users to adjust the height of the fire ladder. The user does not need to get down to readjust the height of the ladder, thereby reducing working time and improving working efficiency. The installation of the "U"-shaped frame at the top of the second ladder can facilitate the user to fix and overlap the second ladder at the overlap, increase the overlap stability of the second ladder, and facilitate the user to use the fire ladder as a whole. The several second round holes opened on the first ladder and the second ladder can facilitate the user to grasp the two side panels of the first ladder and the second ladder when climbing, thereby increasing the climbing stability of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is one of the overall structural schematic diagrams of a fire ladder for fire fighting proposed by the utility model in a closed state;

[0016] Figure 2 This is the second schematic diagram of the overall structure of a fire ladder for fire fighting proposed by the utility model in a closed state;

[0017] Figure 3 The utility model is a schematic diagram of the overall structure of a fire ladder for fire fighting in an open state.

[0018] In the figure: 1, base; 101, bottom plate; 102, first circular hole; 201, hinge seat; 202, long rod; 203, ring; 3, first ladder; 301, side plate; 302, pedal; 303, block; 304, fastening bolt; 305, second circular hole; 306, second horizontal plate; 4, second plate body; 5, third plate body; 501, L-shaped plate body; 6, moving mechanism; 601, motor; 602, screw rod; 603, bearing; 604, threaded cylinder; 7, second ladder; 8, "U"-shaped frame. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-3 A fire ladder for fire fighting includes a base 1, the top area of ​​the base 1 is larger than the top areas of the first ladder 3 and the second ladder 7, a bottom plate 101 is fixed to the bottom end of the base 1, the material of the bottom plate 101 is rubber material, the four corners of the base 1 and the bottom plate 101 are provided with first round holes 102, a hinge seat 201 is fixed to the base 1, a long rod 202 is installed on the hinge seat 201, the holes of the side plate of the hinge seat 201 are connected to the long rod 202, the first ladder 3 is hinged to the hinge seat 201 through the long rod 202, and two rings 203 are fixed at the connection between the long rod 202 and the hinge seat 201, the first ladder 3 installed on the hinge seat 201 can be rotated, so that the placement angle of the first ladder 3 can be adjusted, The ladder 302 is suitable for users to place the fire ladder at different angles when in use. The first ladder 3 includes a pedal 302 and two side panels 301. A row of pedals 302 is fixed between the two side panels 301. Two blocks 303 are fixed on both ends of the pedal 302. Two fastening bolts 304 are threadedly installed on the two blocks 303. The pedal 302 is installed between the two side panels 301 through the two fastening bolts 304 on the two blocks 303. A plurality of second circular holes 305 are opened on the two side panels 301. A second cross plate 306 is fixed on the top surface of the pedal 302. The second cross plate 306 is made of rubber material. The two side panels 301 and the pedal 302 constitute a ladder structure. The setting of the horizontal plate 306 can increase the friction area of ​​the top surface of the pedal 302, increase the contact area between the user's foot and the pedal 302 when climbing the ladder, and ensure climbing stability. The first ladder 3 has the same structure as the second ladder 7. The second plate body 4 and the third plate body 5 are respectively fixed on both ends of the first ladder 3. A moving mechanism 6 is fixed between the second plate body 4 and the third plate body 5. The second ladder 7 is installed on the moving mechanism 6. The moving mechanism 6 includes a motor 601. The motor 601 adopts an electromagnetic speed regulating motor with a model of YCT400-4B. A screw rod 602 is fixed on the output shaft of the motor 601. A bearing 603 is installed on the top of the screw rod 602. The bearing 603 is fixed on the second plate body 4. Threaded barrel 604, threaded barrel 604 is fixed on the second ladder 7, the motor 601 drives the screw rod 602 to rotate on the bearing 603 of the second plate body 4, so that the threaded barrel 604 on the screw rod 602 can drive the second ladder 7 to move, increase the height between the first ladder 3 and the second ladder 7, and facilitate the user to adjust the height of the fire ladder. The second plate body 4 and the third plate body 5 have the same specifications. An L-shaped plate body 501 is fixed on one side of the third plate body 5, and the bottom end of the moving mechanism 6 is fixed on the third plate body 5. A "U"-shaped frame 8 is fixed on one side of the top of the second ladder 7. The installation of the "U"-shaped frame 8 can facilitate the user to fix and overlap the second ladder 7 at the overlap, thereby increasing the overlap stability of the second ladder 7.

[0021] The use method and advantages of the utility model: When the fire ladder is in use, the working process is as follows:

[0022] like Figure 1 , Figure 2 and Figure 3 As shown, when a fire ladder is used, the electrical components in the utility model are electrically connected to an external power supply and a power switch. The base 1 is placed on the top of the fire truck. The installation of the bottom plate 101 can increase the mutual friction between the base 1 and the top of the fire truck. The external fixing part is fixed to the fire truck through the first circular hole 102 of the base 1 and the bottom plate 101. After the fixing is completed, the base 1, the hinge seat 201, the first ladder 3, the second plate 4, the third plate 5, the moving mechanism 6, the second ladder 7 and the fire truck are connected. The fire ladder formed by the "U"-shaped frame 8 can be installed on the fire truck. A hinge seat 201 is fixed on the base 1. The first ladder 3 is hinged on the hinge seat 201. The rotation of the first ladder 3 is realized by the long rod 202. When the fire ladder is fixed on the fire truck, the whole of the fire ladder is placed flat on the fire truck. First, the second ladder 7 is moved between the first ladder 3 through the moving mechanism 6. The second ladder 7 is fixed on the threaded cylinder 604 of the moving mechanism 6. The motor 601 drives the screw rod 602 to rotate on the bearing 603 of the second plate body 4. The screw rod The threaded barrel 604 on 602 can drive the second ladder 7 to move, increase the height between the first ladder 3 and the second ladder 7, and facilitate the user to adjust the height of the fire ladder. The installation of the "U"-shaped frame 8 at the top of the second ladder 7 can facilitate the user to fix the second ladder 7 at the overlap, increase the overlap stability of the second ladder 7, and facilitate the user to use the fire ladder as a whole. After the height adjustment is completed, the fire ladder is tilted as a whole through the hinge seat 201, so that the placement angle of the first ladder 3 can be adjusted, which is suitable for the user's different angle placement requirements when placing and using the fire ladder. The two side panels 301 of the first ladder 3 and the pedal 302 constitute the ladder structure. The second horizontal plate 306 on the pedal 302 can increase the friction area between the sole of the user's foot and the pedal 302 when climbing the ladder, ensuring the climbing stability. The several second circular holes 305 opened on the first ladder 3 and the second ladder 7 can facilitate the user to grasp the two side panels 301 of the first ladder 3 and the second ladder 7 when climbing, increasing the user's climbing stability.

[0023] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fire ladder for firefighting, comprising a base (1) and a first ladder (3), Features: A hinge seat (201) is fixed on the base (1), a long rod (202) is installed on the hinge seat (201), the first ladder (3) is hinged on the hinge seat (201) through the long rod (202), two rings (203) are fixed at the connection between the long rod (202) and the hinge seat (201), a second plate body (4) and a third plate body (5) are respectively fixed on both ends of the first ladder (3), a moving mechanism (6) is fixed between the second plate body (4) and the third plate body (5), a second ladder (7) is installed on the moving mechanism (6), and a "U"-shaped frame (8) is fixed on one side of the top of the second ladder (7).

2. A fire ladder for fire fighting according to claim 1, Features: A bottom plate (101) is fixed to the bottom end of the base (1), and first circular holes (102) are provided at four corners of the base (1) and the bottom plate (101).

3. A fire ladder for fire fighting according to claim 1, Features: The first ladder (3) comprises a pedal (302) and two side panels (301), a row of pedals (302) is fixed between the two side panels (301), two blocks (303) are fixed on both ends of the pedal (302), two fastening bolts (304) are threadedly installed on the two blocks (303), and the pedal (302) is installed between the two side panels (301) through the two fastening bolts (304) on the two blocks (303).

4. A fire ladder for fire fighting according to claim 3, Features: A plurality of second circular holes (305) are provided on the two side plates (301), a second horizontal plate (306) is fixed on the top surface of the pedal (302), and the first ladder (3) and the second ladder (7) have the same structure.

5. A fire ladder for firefighting according to claim 1, Features: The second plate body (4) and the third plate body (5) have the same specifications, an L-shaped plate body (501) is fixed on one side of the third plate body (5), and the bottom end of the moving mechanism (6) is fixed on the third plate body (5).

6. A fire ladder for firefighting according to claim 1, Features: The moving mechanism (6) comprises a motor (601), a screw rod (602) is fixed on the output shaft of the motor (601), a bearing (603) is installed on the top end of the screw rod (602), the bearing (603) is fixed on the second plate body (4), a threaded cylinder (604) is installed on the bearing (603), and the threaded cylinder (604) is fixed on the second ladder (7).

Images