Auxiliary rescue device for rescue vehicle

Abstract

The utility model discloses an auxiliary rescue device for a rescue vehicle. The auxiliary rescue device comprises a lifting platform, a winch driven device and a roller driven device, the lifting platform is a main body supporting frame of the auxiliary rescue device and is used for lifting a fault vehicle; the winch driven device is installed on the lifting platform and used for being used in cooperation with a winch traction rope on the rescue vehicle and used for driving the winch driven device to rotate. And the roller driven device is mounted on the lifting platform, is in transmission connection with the winch driven device and can rotate along with the winch driven device, and rotary motion is converted into linear motion to lift the faulty vehicle on the lifting platform off the ground. The problems that in the rescue process, medium-large-sized fault vehicles are difficult to lift and movement of the medium-large-sized fault vehicles is limited are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of rescue vehicles, in particular to an auxiliary rescue device for a rescue vehicle. Background Art

[0002] Road rescue vehicles, also known as road tow trucks, are special vehicles equipped with road rescue equipment. Their main task is to tow the broken or accident vehicles away from the scene in a timely manner to ensure that the road is unobstructed. When encountering heavy vehicles with damaged tires or brake systems during the rescue process, ordinary flatbed tow trucks cannot complete the rescue operation and need to be equipped with auxiliary rescue equipment to lift and move the broken vehicle.

[0003] The existing technical solutions are given below:

[0004] (1) Use a crane in conjunction with a tow truck or use a dedicated integrated tow truck.

[0005] For example, the utility model patent with patent announcement number "CN214728426U" discloses an integrated towing and rescue vehicle, which integrates a crane arm and a supporting arm device with a high degree of integration and can rescue faulty vehicles by hoisting and lifting.

[0006] (2) Equip the tow truck with auxiliary rescue equipment.

[0007] Currently, auxiliary rescue devices are mainly in the form of auxiliary wheels, which are divided into light and heavy types. Auxiliary wheels are used to replace faulty tires, and then a traction device is used to move the faulty vehicle to a flatbed truck to carry out rescue operations.

[0008] Lightweight auxiliary wheels, such as the utility model patent with patent announcement number "CN206938577U", discloses an adjustable auxiliary wheel device, which uses a force lever to pry the flip travel mechanism to lift the faulty tire, and uses the auxiliary wheel to replace the original tire, which can be used in conjunction with an ordinary flatbed tow truck to rescue the faulty vehicle.

[0009] Heavy-duty auxiliary wheels, such as the utility model patent with patent announcement number "CN112078471B", disclose a heavy-duty auxiliary wheel for emergency rescue of accident vehicles. The device is connected to the faulty vehicle frame and can move automatically with external hydraulic and pneumatic pressure. It also has braking, steering, parking and driving brake functions, and can cooperate with ordinary flatbed tow trucks to rescue faulty vehicles.

[0010] However, the above-mentioned prior art solutions have the following shortcomings:

[0011] (1) Use a crane in conjunction with a tow truck or use a dedicated integrated tow truck.

[0012] The dedicated integrated towing and rescue vehicle needs to be equipped with a crane arm, a supporting arm and other devices on the basis of the ordinary flatbed towing and rescue vehicle, which increases the size of the vehicle body, has a complex structure and high cost. In addition, rescue operations are limited in places with limited space such as tunnels.

[0013] (2) Equip the tow truck with auxiliary rescue equipment.

[0014] Lightweight auxiliary wheels can only improve the rescue efficiency of small vehicles. For medium and large vehicles, the process of replacing auxiliary wheels still requires a lifting device, and the degree of integration is relatively low. Summary of the invention

[0015] The utility model utilizes the characteristic of spiral transmission to convert rotary motion into linear motion, and designs a rescue device that can simultaneously assist in lifting and towing a vehicle. The auxiliary rescue device is placed under the faulty vehicle, and uses a traction winch as power. The spiral transmission is first converted into a lifting force to lift the vehicle off the ground, and then the faulty vehicle is towed to the rescue platform under the traction of the traction winch.

[0016] The utility model solves the problem of difficulty in lifting medium and large faulty vehicles during the rescue process and solves the problem of limited movement of medium and large faulty vehicles during the rescue process.

[0017] The utility model is implemented according to the following technical solutions:

[0018] An auxiliary rescue device for a rescue vehicle, comprising:

[0019] The lifting platform is the main support frame of the auxiliary rescue device and is used to lift the faulty vehicle;

[0020] A winch driven device is installed on the lifting platform and is used in conjunction with a winch traction rope on a rescue vehicle to drive the winch driven device to perform rotational motion;

[0021] The roller follower is installed on the lifting platform and is in driving connection with the winch follower. It can rotate along with the winch follower and convert the rotary motion into linear motion to lift the faulty vehicle on the lifting platform off the ground.

[0022] In some embodiments, the winch driven device comprises:

[0023] A fixed shaft I, which is rotatably supported on the lifting platform;

[0024] A support mechanism I for contacting the ground, mounted on the bottom of the fixed shaft I, with threads fitting between the two;

[0025] Sprocket I is fixed on the fixed shaft I and is drivingly connected to sprocket II in the roller follower device through a chain;

[0026] The driven winch is fixed on the fixed shaft I, and the driven winch is driven to rotate by the winch traction rope, thereby driving the fixed shaft I to rotate. The rotation of the fixed shaft I is converted into a lifting motion under the side effect of the internal spiral, supporting the lifting platform to rise.

[0027] In some embodiments, the support mechanism I is composed of a roller and a support rod fixed above the roller; the fixed shaft I is a hollow internally threaded shaft, and the outer peripheral surface of the support rod is provided with an external thread that cooperates with the internal thread of the fixed shaft I, and the up and down movement of the fixed shaft I is achieved through the cooperation of the internal and external threads.

[0028] In some embodiments, a flange structure extending outward is provided at the bottom of the support rod to limit the downward movement of the fixed axis I.

[0029] In some embodiments, the upper and lower ends of the fixed axis I are each installed on the lifting platform through a bearing and a fixed support.

[0030] In some embodiments, the roller follower comprises:

[0031] A fixed shaft II, which is rotatably supported on the lifting platform;

[0032] A support mechanism II for contacting the ground, mounted on the bottom of the fixed shaft II, with threads fitting between the two;

[0033] Sprocket II is fixed on the fixed shaft II, and is connected to the sprocket I in the winch driven device through a chain. The fixed shaft II is driven to rotate through the winch driven device. The rotation of the fixed shaft II is converted into a lifting motion under the side effect of the internal spiral, supporting the lifting platform to rise.

[0034] In some embodiments, the support mechanism II is composed of a roller and a support rod fixed above the roller; the fixed shaft II is a hollow internally threaded shaft, and the outer peripheral surface of the support rod is provided with an external thread that cooperates with the internal thread of the fixed shaft II, and the up and down movement of the fixed shaft II is achieved through the cooperation of the internal and external threads.

[0035] In some embodiments, the bottom of the support rod is provided with a flange structure extending outwardly for limiting the downward movement of the fixed shaft II.

[0036] In some embodiments, the upper and lower ends of the fixed shaft II are each installed on the lifting platform through a bearing and a fixed support.

[0037] In some embodiments, the lifting platform comprises:

[0038] The frame structure is composed of a front fixed crossbeam, left and right fixed beams and a plurality of rear fixed crossbeams that are rigidly connected, and the frame structure is provided with fastening points around for fixing the faulty vehicle;

[0039] The fixing rod is installed on the front fixing beam to fix the lifting platform and the rescue vehicle during the lifting operation.

[0040] In some embodiments, the top surfaces of the left and right fixed beams are provided with slide rails and slide rail fixing blocks, and by adjusting the slide rail fixing blocks, a support point can be selected under the faulty vehicle to lift the faulty vehicle.

[0041] Beneficial effects of the utility model:

[0042] The utility model provides an auxiliary rescue device for a rescue vehicle, which is fixed to a flat plate at the rear of the rescue vehicle by a fixing rod, and the driven winch is pulled by the on-vehicle winch to rotate, which drives the chain to rotate and transforms it through a spiral transmission to make the lifting platform rise, thereby lifting the faulty vehicle and towing the faulty vehicle onto the plate; after the faulty vehicle is lifted, the fixing rod is loosened, and a roller is attached under the device, and the faulty vehicle is moved by towing the on-vehicle winch. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0044] In the attached picture:

[0045] Figure 1 It is an overall schematic diagram of the auxiliary rescue device for a rescue vehicle of the utility model;

[0046] Figure symbols: 21. Winch driven device; 22. Front fixed beam; 23. Fixed rod; 24. Roller driven device; 25. Left and right fixed beams; 26. Slide rail; 27. Slide rail fixing block; 28. Chain; 29. ​​Rear fixed beam;

[0047] Figure 2 It is an overall schematic diagram of the winch driven device of the utility model;

[0048] Figure symbols: 31. Support mechanism I; 32. Sprocket I; 33. Driven capstan; 34. Fixed shaft I; 35. Bearing and fixed support;

[0049] Figure 3 It is a schematic diagram of placement and fixing of the auxiliary rescue device for the rescue vehicle of the utility model;

[0050] Figure 4 It is a schematic diagram of the lifting state of the auxiliary rescue device for the rescue vehicle of the utility model;

[0051] Attached figures: 1. Rescue vehicle; 2. Auxiliary rescue device for rescue vehicle; 3. Faulty vehicle; 4. Winch rope.

[0052] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0053] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0054] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0055] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] like Figure 1 , Figure 4 As shown, an auxiliary rescue device for a rescue vehicle mainly includes a lifting platform, a winch driven device 21 and a roller driven device 24. The lifting platform is the main support frame of the auxiliary rescue device, which is used to lift the faulty vehicle 3; the winch driven device 21 is installed on the lifting platform, and is used to cooperate with the winch traction rope 4 on the rescue vehicle 1 to drive the winch driven device 21 to perform rotational motion; the roller driven device 24 is installed on the lifting platform, and is connected to the winch driven device 21 in transmission, and can rotate with the winch driven device 21, converting the rotational motion into linear motion to lift the faulty vehicle 3 on the lifting platform off the ground.

[0057] A preferred embodiment of the lifting platform of the above embodiment is given below:

[0058] Continue to refer to Figure 1As shown, the lifting platform is the main support frame of the auxiliary rescue device, including a front fixed beam 22, left and right fixed beams 25 and a plurality of rear fixed beams 29, all of which are rigidly connected, and there are fastening points around the support frame for fixing the faulty vehicle. The left and right fixed beams 25 are equipped with slide rails 26 and slide rail fixing blocks 27. By adjusting the slide rail fixing blocks 27, a support point can be selected under the faulty vehicle to lift the faulty vehicle. A fixing rod 23 is provided in front of the front fixed beam 22 to fix the auxiliary rescue device to the rescue vehicle during the lifting operation.

[0059] A preferred embodiment of the winch driven device according to the above embodiment is given below:

[0060] like Figure 2 As shown, the winch follower device includes a fixed shaft I 34, a support mechanism I 31 for contacting the ground, a sprocket I 32 and a driven winch 33; the fixed shaft I 34 is rotatably supported on the lifting platform; the support mechanism 31 is installed at the bottom of the fixed shaft I 34, and the two are threadedly matched; the sprocket I 32 is fixed on the fixed shaft I 34, and is connected to the sprocket II in the roller follower device 24 through the chain 28; the driven winch 33 is fixed on the fixed shaft I 34, and the driven winch 33 is driven to rotate by the winch traction rope 4, thereby driving the fixed shaft I 34 to rotate, and the rotation of the fixed shaft I 34 is converted into a lifting motion under the side effect of the internal spiral, supporting the lifting platform to rise.

[0061] In a further solution, the support mechanism Ⅰ31 is composed of a roller and a support rod fixed above the roller; the fixed shaft Ⅰ34 is a hollow internally threaded shaft, and the outer peripheral surface of the support rod is provided with an external thread that cooperates with the internal thread of the fixed shaft Ⅰ34, and the up and down movement of the fixed shaft Ⅰ34 is achieved through the cooperation of the internal and external threads.

[0062] In a further solution, a flange structure extending outward is provided at the bottom of the support rod to limit the downward movement of the fixed axis I34.

[0063] In a further solution, the upper and lower ends of the fixed shaft I 34 are respectively installed on the lifting platform through a bearing and a fixed support 35.

[0064] A preferred embodiment of the above embodiment regarding the roller follower is given below:

[0065] The roller driven device 24 is a winch driven device without the driven winch 33. Specifically, it includes a fixed shaft II, a support mechanism II for contacting the ground, and a sprocket II; the fixed shaft II is rotatably supported on the lifting platform; the support mechanism II is installed at the bottom of the fixed shaft II, and the two are threadedly matched; the sprocket II is fixed on the fixed shaft II, and is connected to the sprocket I 32 in the winch driven device 21 through a chain 28, and the fixed shaft II is driven to rotate through the winch driven device 21, and the rotation of the fixed shaft II is converted into a lifting motion under the side effect of the internal spiral, supporting the lifting platform to rise.

[0066] A further solution is that the support mechanism II is composed of a roller and a support rod fixed above the roller; the fixed shaft II is a hollow internally threaded shaft, and the outer peripheral surface of the support rod is provided with an external thread that cooperates with the internal thread of the fixed shaft II, and the up and down movement of the fixed shaft II is achieved through the cooperation of the internal and external threads.

[0067] In a further solution, a flange structure extending outward is provided at the bottom of the support rod to limit the downward movement of the fixed shaft II.

[0068] In a further solution, the upper and lower ends of the fixed shaft II are respectively installed on the lifting platform through a bearing and a fixed support.

[0069] As can be seen from the above, when the rescue vehicle traction winch traction driven winch 33 rotates, it drives the fixed shaft I 34 and sprocket I 32 to rotate, wherein the rotation of sprocket I 32 is transmitted through the chain 28 to drive the sprocket II and fixed shaft II on the roller driven device to rotate, and the rotation of fixed shaft I 34 and fixed shaft II is converted into lifting motion under the side effect of the internal spiral, supporting the lifting platform to rise. The supporting mechanism is equipped with rollers to cooperate with the movement of the rescue device.

[0070] The rescue process of the above-mentioned rescue vehicle auxiliary rescue device is given below:

[0071] 1. If Figure 4 As shown: drive the rescue vehicle 1 (also known as the tow truck, which is a special vehicle for towing a broken-down vehicle or an accident vehicle away from the scene in time) to the front of the broken-down vehicle 3, lower the flatbed of the tow truck 3 at a certain angle to the ground, take out the auxiliary rescue device 2 for the rescue vehicle and place it under the broken-down vehicle 3, adjust the slide rail fixing block 27 to below the load-bearing part of the broken-down vehicle 3, and fix the two fixing rods 23 in front of the auxiliary rescue device 2 for the rescue vehicle to the flatbed of the rescue vehicle 1 (to prevent the rescue device from shaking during the subsequent towing process).

[0072] 2. If Figure 4 As shown: the winch traction rope 4 is taken out from the rescue vehicle 1 and connected to the rising line interface of the driven winch 33, and the driven winch 33 is pulled so that the rescue vehicle uses the auxiliary rescue device 2 to lift the faulty vehicle 3.

[0073] 3. Take out the rigging to fix the auxiliary rescue device 2 for the rescue vehicle and the faulty vehicle 3, and release the fixation of the fixing rod 23 and the rescue vehicle 1; fix the winch traction rope 4 and the auxiliary rescue device 2 for the rescue vehicle, and tow the auxiliary rescue device 2 for the rescue vehicle onto the rescue vehicle 1.

[0074] 4. Connect the winch traction rope 4 to the descending line interface of the driven winch 33, and the faulty vehicle 3 falls on the flatbed of the rescue vehicle 1. After re-fixing, it can be towed normally.

[0075] In summary, the utility model realizes the following functions:

[0076] (1) Vehicle lifting: Use a fixing rod to fix the device to the flat plate at the rear of the rescue vehicle. The driven winch is pulled by the vehicle winch to rotate, which drives the chain to rotate and is converted through the spiral transmission to make the lifting platform rise, thereby lifting the faulty vehicle.

[0077] (2) Vehicle movement: After the faulty vehicle is lifted, loosen the fixing rod, use the rollers at the bottom of the device, and use the winch on the vehicle to tow the faulty vehicle to move it.

[0078] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0079] In addition, those skilled in the art will understand that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments also means being within the scope of protection of the present utility model and forming different embodiments. For example, in the above embodiments, those skilled in the art can use them in combination according to the known technical solutions and the technical problems to be solved by the present application.

[0080] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent can make some changes or modify the technical content suggested above into an equivalent embodiment with equivalent changes without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of the solution of the utility model.

Claims

1. An auxiliary rescue device for a rescue vehicle, characterized in that: include: The lifting platform is the main support frame of the auxiliary rescue device and is used to lift the faulty vehicle; A winch driven device is installed on the lifting platform and is used in conjunction with a winch traction rope on a rescue vehicle to drive the winch driven device to perform rotational motion; The roller follower is installed on the lifting platform and is in driving connection with the winch follower. It can rotate along with the winch follower and convert the rotary motion into linear motion to lift the faulty vehicle on the lifting platform off the ground.

2. The auxiliary rescue device for a rescue vehicle according to claim 1, characterized in that: The winch driven device comprises: A fixed shaft I, which is rotatably supported on the lifting platform; A support mechanism I for contacting the ground, mounted on the bottom of the fixed shaft I, with threads fitting between the two; Sprocket I is fixed on the fixed shaft I and is drivingly connected to sprocket II in the roller follower device through a chain; The driven winch is fixed on the fixed shaft I, and the driven winch is driven to rotate by the winch traction rope, thereby driving the fixed shaft I to rotate. The rotation of the fixed shaft I is converted into a lifting motion under the side effect of the internal spiral, supporting the lifting platform to rise.

3. The auxiliary rescue device for a rescue vehicle according to claim 2, characterized in that: The support mechanism I is composed of a roller and a support rod fixed above the roller; The fixed shaft I is a hollow internally threaded shaft, and the outer peripheral surface of the support rod is provided with an external thread that cooperates with the internal thread of the fixed shaft I. The up and down movement of the fixed shaft I is achieved through the cooperation of the internal and external threads.

4. The auxiliary rescue device for a rescue vehicle according to claim 3, characterized in that: The bottom of the support rod is provided with a flange structure extending outwards, which is used to limit the downward movement of the fixed axis I.

5. The auxiliary rescue device for a rescue vehicle according to claim 2, characterized in that: The upper and lower ends of the fixed shaft I are respectively installed on the lifting platform through a bearing and a fixed support.

6. The auxiliary rescue device for a rescue vehicle according to claim 1, characterized in that: The roller follower device comprises: A fixed shaft II, which is rotatably supported on the lifting platform; A support mechanism II for contacting the ground, mounted on the bottom of the fixed shaft II, with threads fitting between the two; Sprocket II is fixed on the fixed shaft II, and is connected to the sprocket I in the winch driven device through a chain. The fixed shaft II is driven to rotate through the winch driven device. The rotation of the fixed shaft II is converted into a lifting motion under the side effect of the internal spiral, supporting the lifting platform to rise.

7. The auxiliary rescue device for a rescue vehicle according to claim 6, characterized in that: The support mechanism II is composed of a roller and a support rod fixed above the roller; The fixed shaft II is a hollow internally threaded shaft, and the outer peripheral surface of the support rod is provided with an external thread that cooperates with the internal thread of the fixed shaft II. The up and down movement of the fixed shaft II is achieved through the cooperation of the internal and external threads.

8. The auxiliary rescue device for a rescue vehicle according to claim 7, characterized in that: The bottom of the support rod is provided with a flange structure extending outwards, which is used to limit the downward moving fixed shaft II.

9. The auxiliary rescue device for a rescue vehicle according to claim 6, characterized in that: The upper and lower ends of the fixed shaft II are respectively installed on the lifting platform through a bearing and a fixed support.

10. The auxiliary rescue device for a rescue vehicle according to claim 1, characterized in that: The lifting platform comprises: The frame structure is composed of a front fixed crossbeam, left and right fixed beams and a plurality of rear fixed crossbeams that are rigidly connected, and the frame structure is provided with fastening points around for fastening the faulty vehicle; The fixing rod is installed on the front fixing cross beam, and fixes the lifting platform and the rescue vehicle when the lifting operation is performed.

11. The auxiliary rescue device for a rescue vehicle according to claim 10, characterized in that: The top surfaces of the left and right fixed beams are both provided with slide rails and slide rail fixing blocks, and a support point can be selected under the faulty vehicle to lift the faulty vehicle by adjusting the slide rail fixing blocks.

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