Hydraulic lifting mechanism for lifting vehicle-mounted heavy object

Abstract

The utility model relates to a hydraulic lifting mechanism for lifting a vehicle-mounted heavy object, which comprises an oil cylinder fixing support and a sliding rail which are fixedly connected on a corresponding fire truck chassis girder, the oil cylinder fixing support is fixedly connected with a cylinder body end of a lifting oil cylinder, and the sliding rail is connected with a heavy object lifting frame in a sliding / rolling manner. The cylinder rod end of the lifting oil cylinder is connected with and drives the weight lifting frame to ascend and descend along the sliding rail. The hydraulic lifting system is adopted to provide enough kinetic energy, heavy objects within 500 KG can be lifted, the problem that the heavy objects cannot be carried is solved by being matched with heavy directional and universal rollers, the occupied space is small, a mechanical anti-loosening structure is adopted, double insurance is achieved, the anti-loosening performance is good, and the heavy objects are prevented from being separated from a vehicle in the running process.

Description

Technical Field

[0001] The utility model relates to the technical field of fire truck equipment, in particular to a hydraulic lifting mechanism used for lifting heavy objects on a vehicle. Background Art

[0002] Lifting and loading and unloading machinery and equipment can be divided into fixed and mobile types. The mobile type can be composed of a lifting platform modified from a fire truck, which can be used to lift heavy objects on board.

[0003] The utility model provides a hydraulic lifting mechanism for lifting heavy objects on a vehicle. The hydraulic lifting system is used to provide sufficient kinetic energy, and can lift heavy objects within 500 kg. The heavy-duty directional and universal rollers are used to solve the problem that heavy objects cannot be carried. The utility model also takes up little space and has good anti-loosening properties, preventing the lifter from detaching from the vehicle during driving. Utility Model Content

[0004] The purpose of the utility model is to overcome the problems existing in the prior art and provide a hydraulic lifting mechanism for lifting heavy objects on a vehicle.

[0005] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0006] A hydraulic lifting mechanism for lifting heavy objects on a vehicle comprises a cylinder fixed support and a slide rail fixedly connected to the chassis beam of the corresponding fire truck, the cylinder body end of the lifting cylinder being fixedly connected to the cylinder fixed support, the heavy object lifting frame being slidably / rollingly connected to the slide rail, and the cylinder rod end of the lifting cylinder being connected to and driving the heavy object lifting frame to rise and fall along the slide rail.

[0007] Furthermore, the edge of the heavy object lifting frame is connected to a limit pull rod, and one end of the limit pull rod is hooked with a safety buckle fixed on the chassis beam of the fire truck, so as to facilitate pulling the heavy object lifting frame when it is not in working state to prevent it from falling due to the unloading force of the lifting cylinder.

[0008] Furthermore, the other end of the limiting pull rod is threadedly connected to the heavy object lifting frame and is limited and fastened by a corresponding limiting nut.

[0009] Furthermore, a safety pin is connected to the limiting pull rod protruding from the outer end of the limiting nut to further lock and prevent loosening.

[0010] Furthermore, the weight lifting frame or the slide rail is provided with rollers to form a rolling fit connection at the connection point.

[0011] The beneficial effects of the utility model are:

[0012] This utility model adopts a hydraulic lifting system to provide sufficient kinetic energy, which can lift heavy objects within 500KG. It cooperates with heavy-duty directional and universal rollers to solve the problem that heavy objects cannot be carried. It takes up little space and adopts a mechanical anti-loosening structure with double insurance and good anti-loosening performance to avoid separation from the vehicle during driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is the main structural diagram of the utility model;

[0014] Figure 2 This is a top view of the structure of the utility model;

[0015] Figure 3 For this utility model Figure 1 Middle AA local view;

[0016] Figure 4 For this utility model Figure 3 Enlarged view of the middle II;

[0017] Figure 5 For this utility model Figure 3 Enlarged view of point III in the middle;

[0018] Figure 6 For this utility model Figure 2 Enlarged view of point I in the middle.

[0019] Explanation of the numbers in the figure: 1. Cylinder fixed support, 2. Lifting cylinder, 3. Fixed plate, 4. Roller, 5. Heavy object lifting frame, 6. Slide rail, 7. Safety buckle, 8. Safety buckle bracket, 9. Limit nut, 10. Limit rod, 11. Safety pin, 12. Heavy object limit support. DETAILED DESCRIPTION

[0020] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0021] like Figures 1 to 3 As shown, a hydraulic lifting mechanism for lifting heavy objects on a vehicle includes a cylinder fixed support 1 and a slide rail 6 fixedly connected to the corresponding fire truck chassis beam. In this embodiment, the slide rail 6 is fixed to the fixed plate 3, and the cylinder fixed support 1 and the fixed plate 3 are fixedly connected to the side of the corresponding fire truck chassis beam. The cylinder body end of the lifting cylinder 2 is fixed to the cylinder fixed support 1, and the heavy object lifting frame 5 is slidably / rollingly connected to the slide rail 6. The cylinder rod end of the lifting cylinder 2 is connected to and drives the heavy object lifting frame 5 to rise and fall along the slide rail 6.

[0022] like Figures 3 to 5As shown, the edge of the heavy object lifting frame 5 is connected to a limiting pull rod 10, and one end of the limiting pull rod 10 is hooked with a safety buckle 7 fixed on the chassis beam of the fire truck, so as to facilitate pulling the heavy object lifting frame 5 when it is not in working state to prevent the lifting cylinder 2 from unloading and falling. In this embodiment, one end of the limiting pull rod 10 is a hook-shaped structure, and the safety buckle 7 is a lifting ring structure, which is convenient for hooking. The safety buckle 7 is connected to the safety buckle bracket 8, and the safety buckle bracket 8 is fixed to the corresponding fire truck chassis beam.

[0023] The other end of the limiting pull rod 10 is screwed onto the weight lifting frame 5 and is limited and fastened by a corresponding limiting nut 9 .

[0024] A safety pin 11 is connected to the limiting pull rod 10 protruding from the outer end of the limiting nut 9 to further lock and prevent loosening. One end of the safety pin 11 can be connected to the limiting nut 9 or the heavy object lifting frame 5 by a chain. In addition, during actual installation, a heavy object limiting support 12 and other structures can be set on the edge of the heavy object lifting frame 5 to limit the heavy object and prevent it from slipping out.

[0025] like Figure 1 、 Figure 2 and Figure 6 As shown, the weight lifting frame 5 or the slide rail 6 is provided with a roller 4 to form a rolling fit connection at the connection point.

[0026] The action process and principle of this utility model

[0027] When the lifting mechanism of the present invention is in use, the limit pull rod 10 is first unhooked from the safety buckle 7, and the lifting cylinder 2 starts working under the drive of the corresponding motor, driving the heavy object lifting frame 5 to rise and fall along the slide rail 6 to load and unload heavy objects. After the operation is completed, the lifting cylinder 2 lifts the heavy object lifting frame 5, and then the limit pull rod 10 is hooked on the safety buckle 7. Even if the lifting cylinder 2 stops working and unloads the force, the heavy object lifting frame 5 will not fall.

[0028] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A hydraulic lifting mechanism for lifting heavy objects on a vehicle, characterized in that: The invention comprises an oil cylinder fixed support (1) and a slide rail (6) fixedly connected to the chassis beam of the corresponding fire truck, wherein the cylinder body end of the lifting oil cylinder (2) is fixedly connected to the oil cylinder fixed support (1), and a heavy object lifting frame (5) is slidably / rollingly connected to the slide rail (6), and the cylinder rod end of the lifting oil cylinder (2) is connected to and drives the heavy object lifting frame (5) to rise and fall along the slide rail (6).

2. The hydraulic lifting mechanism for lifting heavy objects on a vehicle according to claim 1, characterized in that: The edge of the heavy object lifting frame (5) is connected to a limit rod (10), and one end of the limit rod (10) is hooked with a safety buckle (7) fixed on the chassis beam of the fire truck, so as to hold the heavy object lifting frame (5) in a non-working state and prevent the lifting cylinder (2) from unloading and falling.

3. The hydraulic lifting mechanism for lifting heavy objects on a vehicle according to claim 2, characterized in that: The other end of the limiting pull rod (10) is screwed onto the weight lifting frame (5) and is limited and fastened by a corresponding limiting nut (9).

4. The hydraulic lifting mechanism for lifting heavy objects on a vehicle according to claim 3, characterized in that: A safety pin (11) is connected to the limiting pull rod (10) protruding from the outer end of the limiting nut (9) to further lock and prevent loosening.

5. The hydraulic lifting mechanism for lifting vehicle-mounted heavy objects according to claim 1 or 4, characterized in that: The weight lifting frame (5) or the slide rail (6) is provided with a roller (4) to facilitate forming a rolling fit connection at the connection point.

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