Fire service rapid rescue crane

By employing a counterweight plate, hydraulic cylinder, and spring structure in the fire-fighting rapid rescue crane, the contact area between the base plate and the moving plate is automatically adjusted, solving the problem of unstable support of the crane on soft ground and improving the stability and practicality of the equipment.

CN117163851BActive Publication Date: 2026-07-10HEFEI SHENDIAO HOISTING MACHINERY

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HEFEI SHENDIAO HOISTING MACHINERY
Filing Date
2022-05-25
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing fire-fighting cranes are unstable on soft ground, affecting the stability of the equipment and the speed of rescue operations.

Method used

A rapid rescue crane for firefighting was designed, which adopts a structure of counterweight plate, hydraulic cylinder, hydraulic rod, fixed rod, pressing table and spring. Through hydraulic control and spring action, the contact area between the base plate and the moving plate is automatically adjusted to increase the contact surface with the ground and ensure the stability of the equipment.

Benefits of technology

On soft soil, the contact surface of the equipment is effectively increased, improving its stability and practicality, preventing it from tilting, and increasing the speed of rescue.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN117163851B_ABST
    Figure CN117163851B_ABST
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Abstract

The application discloses a kind of fire service quick rescue cranes, including counterweight plate, four recesses are set up on counterweight plate, hydraulic cylinder is installed on counterweight plate, hydraulic cylinder is equipped with hydraulic rod, one end of hydraulic rod is fixedly connected with fixed rod, extrusion table is installed in one end of fixed rod, two first gaskets are installed in recess inner wall top surface, first spring is fixedly connected on first gasket, another first gasket is installed in the other end of first spring, telescopic rod is equipped between two first gaskets, one end of one first gasket is fixedly connected with come support rod, pressing plate is installed on fixed rod, support rod is slidably connected in pressing plate, second gasket is equipped in the one side of moving plate and sliding groove inner wall, second spring is fixedly connected between two second gaskets, second spring is sleeved on sliding rod, effectively improve the stability of equipment, make equipment more convenient when using, security is higher.
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Description

Technical Field

[0001] This invention relates to the field of crane technology, specifically to a rapid rescue crane for firefighting. Background Technology

[0002] A truck-mounted crane is a specialized vehicle-mounted crane that integrates mechanical, hydraulic, and electronic technologies. When installed on a fire truck, it enables the fire truck to perform lifting and rescue functions, playing a significant role in some non-firefighting rescue operations.

[0003] However, existing lifting equipment is generally supported during use to ensure its stability. If the ground is flat concrete, the equipment is easier and more stable to support. But if the ground is soft soil, the support part will have less contact with the ground, which will affect the stability of the equipment and thus affect the operation of the equipment and the speed of rescue.

[0004] Based on this, the present invention designs a rapid rescue crane for fire fighting to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a rapid rescue crane for firefighting, so as to solve the problem of unstable equipment support mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A rapid rescue crane for firefighting includes a counterweight plate with four grooves. A hydraulic cylinder is mounted on the counterweight plate, and a hydraulic rod is mounted on the hydraulic cylinder. One end of the hydraulic rod is fixedly connected to a fixed rod, and one end of the fixed rod is fitted with a pressing platform. Two first gaskets are mounted on the top surface of the inner wall of each groove. A first spring is fixedly connected to each first gasket, and another first gasket is mounted on the other end of each first spring. A telescopic rod is provided between the two first gaskets. One end of one of the first gaskets is fixedly connected to a support rod, and a pressure plate is mounted on the fixed rod. The support rod is slidably connected within the pressure plate. A base plate is installed between the two support rods, and four sliding rods are slidably connected within the base plate. One end of each sliding rod is fitted with a pressing block, and four grooves are formed on the bottom surface of the base plate. A movable plate is slidably connected within each groove, and the other end of each sliding rod is fixedly connected to the movable plate. A second gasket is provided on one side of the inner wall of each movable plate and groove, and a second spring is fixedly connected between two second gaskets. The second spring is sleeved on the sliding rod.

[0008] Preferably, a turntable is installed on the counterweight plate, two support seats are installed on the turntable, and a crane is installed between the two support seats.

[0009] Preferably, the four grooves are arranged opposite each other, and the hydraulic rod is located within the groove.

[0010] Preferably, the extrusion table is frustum-shaped, and a rubber anti-slip layer is installed at one end of the extrusion table.

[0011] Preferably, the first spring is sleeved on the telescopic rod.

[0012] Preferably, the extrusion block is arc-shaped, the four extrusion blocks are arranged in a ring, and the extrusion platform is located between the four extrusion blocks.

[0013] Preferably, the counterweight plate is equipped with four movable wheels, and the movable wheels are provided with a rubber wear-resistant layer.

[0014] Preferably, a control chamber is installed on the counterweight plate, and a handle is provided on the control chamber, with a rubber anti-slip layer on the surface of the handle.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] This invention involves moving a counterweight plate to a suitable position, opening a hydraulic cylinder, and causing the hydraulic rod to extend and retract. When the road surface is flat, the hydraulic cylinder pushes the hydraulic rod to extend, which in turn pushes a fixed rod to move. As the fixed rod moves, the pressing platform mounted on one end of it moves simultaneously, along with the pressure plate. When the pressure plate moves, the pressure on the first spring decreases, causing it to extend. The first spring then pushes a support rod to move, which in turn pushes the base plate to move. When the pressing platform reaches the appropriate position, it contacts the ground, and the spring force of the first spring acts on the base plate, causing it to contact the ground, thus fixing the equipment. When the road surface is soft mud, after the base plate contacts the ground, the hydraulic rod continues to extend, causing it to move further. As the hydraulic rod moves, the pressing platform enters the ground, and simultaneously... The extrusion platform pushes multiple extrusion blocks, which in turn push a sliding rod to move. As the sliding rod moves, the second spring on it is stretched, and the sliding rod pushes a moving plate to slide in the groove. As the extrusion platform penetrates deeper into the ground, the moving plate moves to a suitable position. At this point, the contact area between the current base plate and the ground is equal to the area of ​​the base plate plus the area of ​​the moving plate, effectively increasing the contact area between the base plate and the ground. This makes the equipment more stable during use. When the extrusion platform moves to the suitable position, the pressure plate is located above the base plate, and the extrusion platform is inserted into the soil, further stabilizing the equipment and preventing it from tilting due to soft soil. Furthermore, it eliminates the need for manual placement of a baffle underneath, thus improving the equipment's practicality and stability. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the front view structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the rear view structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure from the lower side view of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure from a partial frontal view of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure from a partial lower view of the present invention.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Counterweight plate; 2. Turntable; 3. Support base; 4. Crane; 5. Groove; 6. Hydraulic cylinder; 7. Hydraulic rod; 8. Fixed rod; 9. Extrusion table; 10. First gasket; 11. Telescopic rod; 12. First spring; 13. Support rod; 14. Pressure plate; 15. Base plate; 16. Sliding rod; 17. Extrusion block; 18. Slide groove; 19. Moving plate; 20. Second gasket; 21. Second spring; 22. Moving wheel; 23. Control room; 24. Handle. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Please see Figure 1-5 The present invention provides a technical solution:

[0027] A rapid rescue crane for firefighting includes a counterweight plate 1 with four grooves 5. A hydraulic cylinder 6 is mounted on the counterweight plate 1, and a hydraulic rod 7 is mounted on the hydraulic cylinder 6. One end of the hydraulic rod 7 is fixedly connected to a fixing rod 8, and one end of the fixing rod 8 is fitted with a pressing platform 9. Two first gaskets 10 are mounted on the top surface of the inner wall of the grooves 5. A first spring 12 is fixedly connected to the first gasket 10, and another first gasket 10 is mounted on the other end of the first spring 12. A telescopic rod 11 is provided between the two first gaskets 10, and one end of one of the first gaskets 10 is fixedly connected to a support rod 13. A pressure plate 14 is installed on the fixed rod 8. The support rod 13 is slidably connected in the pressure plate 14. A base plate 15 is installed between the two support rods 13. Four sliding rods 16 are slidably connected in the base plate 15. An extrusion block 17 is installed at one end of the sliding rod 16. Four grooves 18 are opened on the bottom surface of the base plate 15. A movable plate 19 is slidably connected in the grooves 18. The other end of the sliding rod 16 is fixedly connected to the movable plate 19. A second gasket 20 is provided on one side of the inner wall of the movable plate 19 and the groove 18. A second spring 21 is fixedly connected between the two second gaskets 20. The second spring 21 is sleeved on the sliding rod 16.

[0028] Move the counterweight plate 1 to the appropriate position, open the hydraulic cylinder 6, and extend the hydraulic rod 7. When the road surface is flat, the hydraulic cylinder 6 pushes the hydraulic rod 7 to extend, and the hydraulic rod 7 pushes the fixed rod 8 to move. When the fixed rod 8 moves, the pressing platform 9 installed at one end of the fixed rod 8 moves simultaneously, and the pressure plate 14 moves simultaneously as the fixed rod 8 moves. When the pressure plate 14 moves, the pressure on the first spring 12 decreases, and the first spring 12 extends. The first spring 12 pushes the support rod 13 to move, causing the support rod 13 to push the base plate 15 to move. When the pressing platform 9 moves to the appropriate position, the pressing platform 9 contacts the ground, and the elastic force of the first spring 12 acts on the base plate 15, causing the base plate 15 to contact the ground. At this time, the equipment is fixed. When the road surface is soft mud, after the base plate 15 contacts the ground, the hydraulic rod 7 continues to extend, causing the hydraulic rod 7 to continue to move. When the hydraulic rod 7 moves, the pressing platform 9 enters the ground, and simultaneously with the movement of the pressing platform 9... The extrusion table 9 pushes multiple extrusion blocks 17, causing the extrusion blocks 17 to push the sliding rod 16 to move. When the sliding rod 16 moves, the second spring 21 on the sliding rod 16 is stretched, and the sliding rod 16 pushes the moving plate 19 to slide in the groove 18. As the extrusion table 9 penetrates deeper into the ground, the moving plate 19 will move to a suitable position. At this time, relative to the original base plate 15, the contact area between the base plate 15 and the ground is equal to the area of ​​the base plate 15 plus the area of ​​the moving plate 19, thereby effectively increasing the contact area between the base plate 15 and the ground, making the equipment more stable during use. When the extrusion table 9 moves to a suitable position, the pressure plate 14 is located on the upper side of the base plate 15, and the extrusion table 9 is inserted into the soil, thereby further stabilizing the equipment and further preventing the equipment from tilting due to the soft soil during use. Moreover, it is not necessary to manually place a baffle under the equipment during use, thus improving the practicality and stability of the equipment.

[0029] The counterweight plate 1 is equipped with a turntable 2, and the turntable 2 is equipped with two support seats 3. A crane 4 is installed between the two support seats 3, which is beneficial for lifting and rescuing equipment.

[0030] The four grooves 5 are arranged opposite each other, and the hydraulic rod 7 is located in the grooves 5; this helps to increase its stability.

[0031] The extrusion table 9 is frustum-shaped, and a rubber anti-slip layer is installed at one end of the extrusion table 9; this facilitates the application of pressure to the extrusion block 17 and is beneficial to the movement of the moving plate 19.

[0032] The first spring 12 is sleeved on the telescopic rod 11 to improve its stability.

[0033] Among them, the extrusion block 17 is arc-shaped, the four extrusion blocks 17 are in a ring, and the extrusion table 9 is located between the four extrusion blocks 17; to facilitate the movement and opening of the movable plate 19.

[0034] The counterweight plate 1 is equipped with four casters 22, and the casters 22 are covered with a wear-resistant rubber layer to facilitate the movement of the equipment.

[0035] The counterweight plate 1 is equipped with a control chamber 23, and the control chamber 23 is equipped with a handle 24. The surface of the handle 24 is covered with a rubber anti-slip layer to facilitate the control of the equipment.

[0036] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A rapid rescue crane for firefighting, comprising a counterweight plate (1), characterized in that: The counterweight plate (1) has four grooves (5). A hydraulic cylinder (6) is installed on the counterweight plate (1). A hydraulic rod (7) is provided on the hydraulic cylinder (6). A fixing rod (8) is fixedly connected to one end of the hydraulic rod (7). A pressing table (9) is installed on one end of the fixing rod (8). Two first gaskets (10) are installed on the top surface of the inner wall of the groove (5). A first spring (12) is fixedly connected to the first gasket (10). Another first gasket (10) is installed on the other end of the first spring (12). A telescopic rod (11) is provided between the two first gaskets (10). A support rod (13) is fixedly connected to one end of one of the first gaskets (10). A pressure plate (8) is installed on the fixing rod (8). 14) The support rod (13) is slidably connected in the pressure plate (14). A base plate (15) is installed between the two support rods (13). Four sliding rods (16) are slidably connected in the base plate (15). An extrusion block (17) is installed at one end of the sliding rod (16). Four sliding grooves (18) are opened on the bottom surface of the base plate (15). A moving plate (19) is slidably connected in the sliding groove (18). The other end of the sliding rod (16) is fixedly connected to the moving plate (19). A second gasket (20) is provided on one side of the inner wall of the moving plate (19) and the sliding groove (18). A second spring (21) is fixedly connected between the two second gaskets (20). The second spring (21) is sleeved on the sliding rod (16).

2. A rapid rescue crane for firefighting according to claim 1, characterized in that: A turntable (2) is installed on the counterweight plate (1), and two support seats (3) are installed on the turntable (2). A crane (4) is installed between the two support seats (3).

3. A rapid rescue crane for firefighting according to claim 1, characterized in that: The four grooves (5) are provided opposite to each other, and the hydraulic rod (7) is located in the groove (5).

4. A rapid rescue crane for firefighting according to claim 1, characterized in that: The extrusion table (9) is frustum-shaped, and a rubber anti-slip layer is installed at one end of the extrusion table (9).

5. A rapid rescue crane for firefighting according to claim 1, characterized in that: The first spring (12) is sleeved on the telescopic rod (11).

6. A rapid rescue crane for firefighting according to claim 1, characterized in that: The extrusion block (17) is arc-shaped, the four extrusion blocks (17) are in a ring, and the extrusion table (9) is located between the four extrusion blocks (17).

7. A rapid rescue crane for firefighting according to claim 1, characterized in that: The counterweight plate (1) is equipped with four moving wheels (22), and the moving wheels (22) are provided with a rubber wear-resistant layer.

8. A rapid rescue crane for firefighting according to claim 1, characterized in that: A control chamber (23) is installed on the counterweight plate (1), and a handle (24) is provided on the control chamber (23). The surface of the handle (24) is provided with a rubber anti-slip layer.