Fire-fighting extension ladder loading and unloading equipment

Abstract

The utility model discloses loading and unloading equipment for a fire-fighting extension ladder. The loading and unloading equipment comprises a fixed frame body, a movable frame body, a driving rod and a lifting driving device, the fixed frame body is fixed to the top of a water tank of a fire-fighting vehicle; one side of the movable frame body is hinged to the fixed frame body; one end of the driving rod is connected with the fixed frame, and the other end of the driving rod is connected with the movable frame; the lifting driving device comprises end seats, a driving motor, a rotating rod and a connecting belt, the end seats are fixed on the movable frame body at intervals, the rotating rod is rotatably connected between the two end seats, and the driving motor is in transmission connection with the rotating rod; one end of the connecting belt is connected with the rotating rod, and the other end of the connecting belt is connected with a fire-fighting extension ladder. The fire-fighting extension ladder loading and unloading equipment has the following advantages that the fire-fighting extension ladder can be stably fixed in the running process of a fire-fighting truck, and the fire-fighting extension ladder is prevented from sliding or falling off. The fire-fighting extension ladder is simple and quick to assemble and disassemble, and time and labor are saved. The roof space is utilized to the maximum extent, and storage of other equipment is prevented from being affected.

Description

Technical Field

[0001] The utility model belongs to the technical field of fire rescue equipment, in particular to a fire ladder loading and unloading device. Background Art

[0002] In the process of firefighting and rescue, it is a vital task to quickly transport firefighting equipment to the fire scene. Firefighting ladders are a commonly used rescue tool, usually used for high-altitude rescue and firefighting. However, existing firefighting vehicles usually do not have a position specially designed for placing firefighting ladders, which brings many inconveniences and difficulties to the transportation of firefighting ladders.

[0003] At present, fire ladders are usually transported by simply tying or placing them on fire trucks. This method has the following obvious defects: 1. Unstable fixation: Due to the lack of a dedicated placement location, the fire ladder is prone to shaking or slipping during transportation. This may not only cause damage to the equipment, but also cause harm to firefighters in an emergency, affecting the efficiency and safety of the rescue operation. 2. Inconvenient operation: In the absence of a fixed placement device, the loading and unloading of the fire ladder requires a lot of manpower and time. Especially in an emergency, this inconvenience of operation will significantly delay the rescue time and may miss the best time for rescue. 3. Safety hazards: Due to unstable fixation and inconvenient operation, the fire ladder has great safety hazards during transportation. For example, due to sudden braking or turning during driving, an unfixed fire ladder may cause danger to firefighters inside and outside the vehicle. In addition, accidents caused by operational errors are also prone to occur during loading and unloading. Utility Model Content

[0004] The utility model aims to provide a fire-fighting ladder loading and unloading device.

[0005] The technical solution of the utility model for solving the above-mentioned technical problems is as follows: a fire ladder loading and unloading equipment, comprising: a fixed frame, a movable frame, a driving rod and a lifting drive device; the fixed frame is used to be fixed to the top of the water tank of a fire truck; one side of the movable frame is hingedly connected to the fixed frame; one end of the driving rod is connected to the fixed frame, and the other end of the driving rod is connected to the movable frame, and the movable frame is pushed to rotate around the hinge part by the driving rod; the lifting drive device comprises an end seat, a driving motor, a rotating rod and a connecting belt, the end seats are fixed on the movable frame at intervals, the rotating rod is rotatably connected between the two end seats, and the driving motor is transmission-connected to the rotating rod; one end of the connecting belt is connected to the rotating rod, and the other end of the connecting belt is connected to the fire ladder.

[0006] The fire ladder loading and unloading equipment of the utility model as described above, further, the fixed frame includes a first frame body of a rectangular structure, a second frame body of a rectangular structure, a first side rod and a second side rod; the second frame body is located above the first frame body; the first side rod is connected between the first frame body and the second frame body, and the first side rod is located on one side of the first frame body and the second frame body; the second side rod is connected between the first frame body and the second frame body, and the second side rod is located on the other side of the first frame body and the second frame body.

[0007] The fire ladder loading and unloading equipment of the utility model as described above, further, the movable frame includes a third frame body with a rectangular structure, a fourth frame body with a rectangular structure, a third side rod and a fourth side rod; the fourth frame body is located above the third frame body; the third side rod is connected between the third frame body and the fourth frame body, and the third side rod is located on one side of the third frame body and the fourth frame body; the fourth side rod is connected between the third frame body and the fourth frame body, and the fourth side rod is located on the other side of the third frame body and the fourth frame body; the length of the fourth side rod is greater than the length of the third side rod, and the position where the fourth frame body is connected to the fourth side rod is located in the middle of the fourth side rod.

[0008] The fire ladder loading and unloading equipment of the utility model as described above, further, the driving rod is one of a hydraulic cylinder or an electric push rod; one end of the driving rod is connected to the second frame body of the fixed frame body, and the other end of the driving rod is connected to the third frame body of the movable frame body.

[0009] The fire ladder loading and unloading equipment of the utility model as described above further comprises a safety chain, one end of the safety chain is connected to the fixed frame, and the other end of the safety chain is connected to the movable frame.

[0010] The fire ladder loading and unloading equipment of the utility model as described above further comprises a spring, one end of the spring is connected to the fixed frame, and the other end of the spring is connected to the movable frame.

[0011] The above-mentioned fire ladder loading and unloading equipment of the utility model has the following advantages: 1. Firm fixation: It can firmly fix the fire ladder during the driving of the fire truck to prevent it from sliding or falling. 2. Easy operation: It makes the loading and unloading operation of the fire ladder simple and fast, saving time and manpower. 3. Efficient space utilization: Under the premise of ensuring the fixation of the equipment and convenient operation, it maximizes the use of the roof space to avoid affecting the storage of other equipment. 4. High safety: During transportation and operation, it can maximize the safety of firefighters and reduce potential safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The above and / or other advantages of the present invention will become clearer and easier to understand through the detailed description made in conjunction with the following drawings, which are only schematic and do not limit the present invention, wherein:

[0013] Figure 1 It is a three-dimensional schematic diagram of a first operating state of a fire ladder loading and unloading device according to an embodiment;

[0014] Figure 2 It is a side schematic diagram of a first operating state of a fire ladder loading and unloading device according to an embodiment;

[0015] Figure 3 A three-dimensional schematic diagram of a fire ladder loading and unloading device in a first embodiment in a running state;

[0016] Figure 4 It is a side schematic diagram of a second operating state of a fire ladder loading and unloading device according to an embodiment;

[0017] Figure 5 It is a three-dimensional schematic diagram of a third operating state of a fire ladder loading and unloading device according to an embodiment;

[0018] Figure 6 It is a side schematic diagram of the third operating state of a fire ladder loading and unloading device according to an embodiment.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 10. Fixed frame, 11. First frame, 12. Second frame, 13. First side rod, 14. Second side rod, 20. Movable frame, 21. Third frame, 22. Fourth frame, 23. Third side rod, 24. Fourth side rod, 30. Lifting drive device, 31. End seat, 32. Drive motor, 33. Electric wire, 34. Turn rod, 35. Connecting belt, 40. Control device, 50. Fire ladder, 60. Safety chain, 70. Drive rod, 71. Connecting seat, 80. Spring. DETAILED DESCRIPTION

[0021] Hereinafter, embodiments of the fire-fighting ladder loading and unloading equipment of the present invention will be described with reference to the accompanying drawings.

[0022] The embodiments described herein are specific embodiments of the present invention, which are used to illustrate the concept of the present invention, are explanatory and exemplary, and should not be interpreted as limiting the embodiments of the present invention and the scope of the present invention. In addition to the embodiments described herein, those skilled in the art can also adopt other obvious technical solutions based on the claims and the contents disclosed in the specification of this application, including technical solutions that adopt any obvious replacement and modification of the embodiments described herein.

[0023] The drawings of this specification are schematic diagrams, which assist in explaining the concept of the utility model and schematically show the shapes of various parts and their mutual relationships. Please note that in order to clearly show the structure of various components of the embodiments of the utility model, the drawings are not drawn according to the same scale. The same reference numerals are used to represent the same parts.

[0024] The top of the water tank of a fire truck is usually not used to place other equipment. However, since the water tank is located at a high position and there is no dedicated facility for fixing the fire ladder, it is difficult to manually lift the fire ladder to the top of the water tank of the fire truck and fix it for transportation. In order to solve the problem that the fire ladder (a stretchable and foldable ladder used for fire fighting) is difficult to transport with the fire truck, the utility model provides a fire ladder loading and unloading device.

[0025] Figures 1 to 6 The present invention shows a fire ladder loading and unloading device according to an embodiment of the present invention, which comprises:

[0026] The fixed frame 10 is used to be fixed to the top of the water tank of the fire truck; specifically, it can be connected and fixed by specific fixing methods such as welding and bolting. In a specific embodiment, the fixed frame 10 includes a first frame 11 with a rectangular structure, a second frame 12 with a rectangular structure, a first side rod 13 and a second side rod 14; Figure 3 and Figure 4 The first frame body and the second frame body both include long sides and short sides, and the second frame body 12 is located above the first frame body 11; the first side rod 13 is connected between the first frame body 11 and the second frame body 12, and the first side rod 13 is located on one side of the first frame body 11 and the second frame body 12 ( Figure 4 The second side rod 14 is connected between the first frame 11 and the second frame 12, and the second side rod 14 is located on the other side of the first frame 11 and the second frame 12 ( Figure 4 In a specific embodiment, the fixed frame is welded with square steel, which is convenient to process and can meet the strength requirements of the equipment.

[0027] A movable frame 20, one side of which is hingedly connected to the fixed frame 10; in a specific embodiment, the movable frame 20 includes a third frame 21 of a rectangular structure, a fourth frame 22 of a rectangular structure, a third side rod 23 and a fourth side rod 24; the third frame and the fourth frame both include a long side and a short side, and the fourth frame 22 is located above the third frame 21; the third side rod 23 is connected between the third frame 21 and the fourth frame 22, and the third side rod 23 is located on one side of the third frame 21 and the fourth frame 22; the fourth side rod 24 is connected between the third frame 21 and the fourth frame 22, and the fourth side rod 24 is located on the other side of the third frame 21 and the fourth frame 22; the length of the fourth side rod 24 is greater than the length of the third side rod 23, and the position where the fourth frame 22 is connected to the fourth side rod 24 is located in the middle of the fourth side rod 24. Figure 1 and Figure 2 In the first operating state of the fire ladder loading and unloading equipment, the movable frame is folded at the upper part of the first frame, and a storage space for placing the fire ladder is formed between the fourth side rod of the movable frame and the fourth frame, and the fire ladder can be placed in this position. Figure 4 As shown, the left side of the fixed frame is hingedly connected to the left side of the movable frame, which can be specifically achieved by using methods existing in the prior art such as folding.

[0028] A driving rod 70, one end of which is connected to the fixed frame 10, and the other end of which is connected to the movable frame 20, and the movable frame 20 is pushed to rotate around the hinge part by the driving rod 70; in a preferred embodiment, the driving rod 70 is one of a hydraulic cylinder or an electric push rod; one end of the driving rod 70 is connected to the second frame 12 of the fixed frame 10 ( Figure 4 The other end of the driving rod 70 is connected to the third frame 21 of the movable frame 20 ( Figure 4 on the right side of the third frame). Figure 4 A connecting seat 71 is also shown, which is connected to the third frame body 21 of the movable frame body 20, and the other end of the driving rod 70 is hingedly connected to the connecting seat.

[0029] The lifting drive device 30 includes an end seat 31, a drive motor 32, a rotating rod 34 and a connecting belt 35. The end seat 31 is fixed on the movable frame 20 at intervals. Figure 1 In a specific embodiment shown in the figure, there are two end seats, which are respectively fixedly connected to the ends of the second side rods of the movable frame; the rotating rod 34 is rotatably connected between the two end seats 31, and the driving motor 32 is transmission-connected to the rotating rod 34; Figure 1In the specific embodiment shown, the drive motor is connected to the end seat, and the output end of the drive motor is connected to the rotating rod; in this embodiment, the drive motor is preferably a reduction motor. In another embodiment, the rotating rod is directly connected to the end seat through a bearing, and the drive motor drives the second gear installed on the rotating rod through a first gear connected to the output shaft to achieve rotation. In this embodiment, the diameter of the first gear is smaller than the diameter of the second gear to prevent the rotating rod from running too fast at two speeds. One end of the connecting belt 35 is connected to the rotating rod 34, and the other end of the connecting belt 35 is connected to the fire ladder 50. Figure 5 In the figure, two spaced connection belts are shown. Those skilled in the art can set other numbers of connection belts, such as three, four, five, etc., according to the fixing requirements of the fire ladder. The connection belts are preferably arranged at equal intervals.

[0030] The fire ladder loading and unloading equipment of the utility model can also be provided with a control device 40, through which the operating state of the driving rod and the lifting driving device is switched to realize the loading and unloading of the fire ladder. The control device includes a control switch, and the control switch is conductively connected to the driving motor of the lifting driving device through a wire 33.

[0031] The use process of the fire ladder loading and unloading device of the above embodiment of the utility model is as follows. After receiving the fire rescue mission, the fire ladder loading and unloading device and the fire ladder installed on the water tank of the fire truck follow the fire truck to the fire extinguishing point. At this time, the status of the fire ladder loading and unloading device and the fire ladder is as follows: Figure 1 and Figure 2 Start the drive rod, and drive the movable frame to rotate along the hinge position (the fixed frame rotates on the left side). The rotation process is as follows Figure 3 and Figure 4 As shown. When the movable frame rotates to the vertical position, the driving rod stops running, the motor of the lifting drive device rotates, and drives the rotating rod to rotate. During the rotation of the rotating rod, the connecting belt wrapped around the rotating rod is gradually released, and the lower end of the connecting belt is connected to the fire ladder and gradually moves downward. When the fire ladder is lowered to a height that is convenient for firefighters to carry manually, the motor of the lifting drive device stops running. Firefighters can easily remove the fire ladder from the connecting belt for fire rescue. The process of retracting the fire ladder after the rescue mission is completed is the opposite of the above process.

[0032] The fire ladder loading and unloading equipment of the utility model has the following advantages: 1. Firm fixation: It can firmly fix the fire ladder during the driving of the fire truck to prevent it from sliding or falling. 2. Easy operation: It makes the loading and unloading operation of the fire ladder simple and fast, saving time and manpower. 3. Efficient space utilization: Under the premise of ensuring the fixation of the equipment and convenient operation, the roof space is utilized to the maximum extent to avoid affecting the storage of other equipment. 4. High safety: During transportation and operation, it can maximize the safety of firefighters and reduce potential safety hazards.

[0033] In a further preferred embodiment of the fire ladder loading and unloading equipment, it further includes a safety chain 60, one end of the safety chain 60 is connected to the fixed frame 10, and the other end of the safety chain 60 is connected to the movable frame 20. Figure 6 As shown, one end of the safety chain is connected to the right side of the fixed frame, and the other end of the safety chain is fixedly connected to the right side of the movable frame, and the length of the safety chain is set to be taut when the movable frame is in a vertical state to prevent the movable frame from continuing to rotate around the hinge point and causing accidents such as the fire ladder falling off.

[0034] In a further preferred embodiment of the fire ladder loading and unloading equipment, it further includes a spring 80, one end of the spring 80 is connected to the fixed frame 10, and the other end of the spring 80 is connected to the movable frame 20. Figure 5 As shown, one end of the spring is connected to the right side of the fixed frame, and the other end of the spring is fixedly connected to the right side of the movable frame. The movable frame is moved from a vertical state to a horizontal state by the tension of the spring, which can reduce the driving load of the driving rod to a certain extent.

[0035] The technical features disclosed above are not limited to the disclosed combinations with other features. Those skilled in the art may also make other combinations between the technical features according to the purpose of the utility model to achieve the purpose of the utility model.

Claims

1. A fire ladder loading and unloading device, characterized in that: include: A fixed frame (10), a movable frame (20), a driving rod (70) and a lifting drive device (30); the fixed frame (10) is used to be fixed to the top of a water tank of a fire truck; one side of the movable frame (20) is hingedly connected to the fixed frame (10); one end of the driving rod (70) is connected to the fixed frame (10), and the other end of the driving rod (70) is connected to the movable frame (20), and the movable frame (20) is pushed around the hinged portion by the driving rod (70). Rotation; the lifting drive device (30) comprises an end seat (31), a driving motor (32), a rotating rod (34) and a connecting belt (35); the end seat (31) is fixed on the movable frame (20) at intervals; the rotating rod (34) is rotatably connected between the two end seats (31); the driving motor (32) is transmission-connected to the rotating rod (34); one end of the connecting belt (35) is connected to the rotating rod (34), and the other end of the connecting belt (35) is connected to the fire ladder (50).

2. The fire ladder loading and unloading equipment according to claim 1, characterized in that: The fixed frame (10) comprises a first frame (11) of a rectangular structure, a second frame (12) of a rectangular structure, a first side rod (13) and a second side rod (14); the second frame (12) is located above the first frame (11); the first side rod (13) is connected between the first frame (11) and the second frame (12), and the first side rod (13) is located on one side of the first frame (11) and the second frame (12); the second side rod (14) is connected between the first frame (11) and the second frame (12), and the second side rod (14) is located on the other side of the first frame (11) and the second frame (12).

3. The fire ladder loading and unloading equipment according to claim 2, characterized in that: The movable frame (20) comprises a third frame body (21) of a rectangular structure, a fourth frame body (22) of a rectangular structure, a third side rod (23) and a fourth side rod (24); the fourth frame body (22) is located above the third frame body (21); the third side rod (23) is connected between the third frame body (21) and the fourth frame body (22), and the third side rod (23) is located on one side of the third frame body (21) and the fourth frame body (22); the fourth side rod (24) is connected between the third frame body (21) and the fourth frame body (22), and the fourth side rod (24) is located on the other side of the third frame body (21) and the fourth frame body (22); the length of the fourth side rod (24) is greater than the length of the third side rod (23), and the position where the fourth frame body (22) and the fourth side rod (24) are connected is located in the middle of the fourth side rod (24).

4. The fire ladder loading and unloading equipment according to claim 3, characterized in that: The driving rod (70) is a hydraulic cylinder or an electric push rod; one end of the driving rod (70) is connected to the second frame (12) of the fixed frame (10), and the other end of the driving rod (70) is connected to the third frame (21) of the movable frame (20).

5. The fire ladder loading and unloading equipment according to any one of claims 1 to 4, characterized in that: It also includes a safety chain (60), one end of the safety chain (60) is connected to the fixed frame (10), and the other end of the safety chain (60) is connected to the movable frame (20).

6. The fire ladder loading and unloading equipment according to any one of claims 1 to 4, characterized in that: It also includes a spring (80), one end of the spring (80) is connected to the fixed frame (10), and the other end of the spring (80) is connected to the movable frame (20).

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