Automatic lifting loading ladder stand for vehicle transport vehicle

Abstract

According to the automatic lifting loading crawling ladder for the vehicle transport vehicle, a vehicle getting-on crawling ladder frame is hinged to a vehicle tail frame body, supporting frames are installed on the two sides of the vehicle tail frame body, folding type supporting rods are hinged between the vehicle getting-on crawling ladder frame and the supporting frames, and the vehicle getting-on crawling ladder frame is pulled to ascend and descend through a steel wire rope connected between a pulley A and a pulley B in a sliding mode. When the hydraulic oil cylinder drives the hydraulic telescopic rod to stretch out, the pulley A is driven to vertically move downwards, the getting-on ladder stand frame is lifted up under the traction of the steel wire rope and can be used as a vehicle tail protection plate on a vehicle transport vehicle to guarantee the transport safety of a commercial vehicle, and when the hydraulic oil cylinder drives the hydraulic telescopic rod to retract, the pulley A is driven to vertically move upwards. According to the automatic lifting loading ladder stand, the ladder stand does not need to be manually pulled in the whole process, manpower waste is reduced, the loading time is saved, the strength of the ladder stand is better, and maintenance and use are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of loading ladders, in particular to an automatic lifting loading ladder for a vehicle transport vehicle. Background Art

[0002] Currently, loading ladders at the rear of vehicle transporters are usually made of iron or aluminum alloy. These ladders have the following disadvantages:

[0003] 1. Aluminum alloy ladders are relatively light in weight and have average load-bearing capacity. They may bend when transporting large new energy vehicles or vehicles with heavy weight.

[0004] 2. Using iron ladders, the ladders are heavy, which makes it difficult for the driver to carry them when loading vehicles, resulting in high labor intensity and low efficiency;

[0005] 3. A slide groove needs to be added to the rear of the vehicle. The ladder needs to slide in the slide when in use. If the mechanical parts are deformed or damaged, the slide will become stuck and the ladder will not be able to be used normally.

[0006] Therefore, in view of the shortcomings of the existing technology, it is necessary to provide a vehicle transport vehicle automatic lifting loading ladder to solve the shortcomings of the existing technology. Utility Model Content

[0007] The purpose of the utility model is to avoid the shortcomings of the existing technology and provide an automatic lifting loading ladder for a vehicle transport vehicle, including a vehicle ladder frame hinged on the side of the tail frame body close to the rear of the vehicle, support frames are vertically installed on both sides of the tail frame body, a folding support rod is hinged between the vehicle ladder frame and the support frame, a hydraulic cylinder is installed on the top of each support frame, a hydraulic telescopic rod is installed at the bottom of the hydraulic cylinder, a pulley A is installed at the bottom of the hydraulic telescopic rod, pulley B is installed on the pulley support seats on the sides of the two support frames close to the rear of the vehicle, a steel wire rope is fixedly installed between the support frame and the vehicle ladder frame, and the steel wire rope is Z-shaped and connected to pulley A and pulley B.

[0008] The above-mentioned purpose of the present invention is achieved through the following technical means.

[0009] Provided is an automatic lifting loading ladder for a vehicle transport vehicle, comprising a tail frame body, a loading ladder frame hinged on the side of the tail frame body close to the rear of the vehicle, support frames vertically installed on both sides of the tail frame body, and foldable support rods hinged between the loading ladder frame and the two support frames.

[0010] Specifically, a hydraulic cylinder is installed on the top of each support frame, a hydraulic telescopic rod is installed at the bottom of the hydraulic cylinder, a pulley A is installed at the bottom of the hydraulic telescopic rod through a bearing, and a pulley support seat is installed on the side of the two support frames close to the rear of the vehicle, and a pulley B is installed on the pulley support seat through a bearing.

[0011] Preferably, pulley A and pulley B are equipped with a steel wire rope, pulley A and pulley B are not on the same vertical plane, the steel wire rope is Z-shaped and connected to pulley A and pulley B, and the two ends of the steel wire rope are respectively fixedly mounted on the support frame and the vehicle ladder frame.

[0012] The vehicle climbing ladder includes a ladder frame, which is hinged to the side of the tail frame body near the rear of the vehicle. Two motors are installed inside the ladder frame. Both motors are axially connected to gears, and the two gears are axially connected to a transmission chain.

[0013] A support plate assembly is slidably installed inside the transmission chain belt, and the support plate assembly includes a support plate body. The support plate body is fixedly installed inside the ladder frame. Multiple rollers are connected to the upper and lower sides of the support plate body through bearings, and the multiple rollers are movably connected to the inner side of the transmission chain belt.

[0014] The foldable support rod includes a rod body A, one end of the rod body A is hinged to the support frame, the other end of the rod body A is installed with a pin seat A, and a pin A is installed inside the pin seat A. One side of the rod body A is hinged to the rod body B, and the rod body B is provided with an axis hole at the position corresponding to the pin A. The other end of the rod body B is hinged to the ladder frame, and a pin seat B is fixedly installed on the support frame, and a pin B is installed inside the pin seat B. The pin seat A and the pin seat B both include a base plate, two ear plates are vertically installed on the base plate, and the two ear plates are provided with corresponding pin holes.

[0015] The utility model can pull the vehicle climbing ladder frame up and down through the steel wire rope slidably connected between pulley A and pulley B. When the hydraulic cylinder drives the hydraulic telescopic rod to extend, it drives pulley A to move vertically downward. The vehicle climbing ladder frame is lifted up under the traction of the steel wire rope and can serve as a rear protective plate on the vehicle transport vehicle to ensure the transportation safety of the commodity vehicle. When the hydraulic cylinder drives the hydraulic telescopic rod to retract, it drives pulley A to move vertically upward. The vehicle climbing ladder frame falls down under the traction of the steel wire rope and the rear end contacts the ground for loading the commodity vehicle. This automatic lifting loading ladder does not require manual pulling and pulling of the ladder throughout the entire process, which reduces manpower waste and saves loading time. At the same time, the ladder has better strength and is easy to maintain and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described with reference to the accompanying drawings, but the contents in the accompanying drawings do not constitute any limitation to the present invention.

[0017] Figure 1The utility model is a three-dimensional diagram of the overall structure of an automatic lifting and loading ladder for a vehicle transport vehicle.

[0018] Figure 2 The utility model is a top view of an automatic lifting and loading ladder for a vehicle transport vehicle.

[0019] Figure 3 The utility model is a side view of an automatic lifting loading ladder for a vehicle transport vehicle in a raised state.

[0020] Figure 4 The utility model is a side view of an automatic lifting loading ladder for a vehicle transport vehicle in a lowered state.

[0021] Figure 5 The utility model is a cross-sectional view of an on-board ladder frame of an automatic lifting loading ladder for a vehicle transport vehicle.

[0022] Figure 6 It is an enlarged view of point A of an automatic lifting loading ladder for a vehicle transport vehicle of the present invention.

[0023] Figure 7 It is an enlarged view of point B of an automatic lifting loading ladder for a vehicle transport vehicle of the present invention.

[0024] Figure 8 The utility model is a structural stereogram of a pin shaft seat A and a pin shaft A of an automatic lifting loading ladder for a vehicle transport vehicle.

[0025] from Figures 1 to 8 Including:

[0026] 1. Tail rack body;

[0027] 2. Climb the ladder to get on the vehicle;

[0028] 3. Support frame;

[0029] 4. Folding support rod;

[0030] 5. Hydraulic cylinder;

[0031] 6. Hydraulic telescopic rod;

[0032] 7. Pulley A;

[0033] 8. Pulley support seat;

[0034] 9. Pulley B;

[0035] 10. Steel wire rope;

[0036] 11. Ladder frame;

[0037] 12. Motor;

[0038] 13. Gear;

[0039] 14. Transmission chain belt;

[0040] 15. Support plate assembly;

[0041] 16. Support plate body;

[0042] 17. Roller;

[0043] 18. Rod body A;

[0044] 19. Pin seat A;

[0045] 20. Pin A;

[0046] 21. Rod body B;

[0047] 22. Axis hole;

[0048] 23. Pin seat B;

[0049] 24. Pin B

[0050] 25. Bottom plate;

[0051] 26. Ear plate;

[0052] 27. Pin hole. DETAILED DESCRIPTION

[0053] The present invention will be further described with reference to the following embodiments.

[0054] Example 1.

[0055] like Figure 1-5 As shown, an automatic lifting loading ladder for a vehicle transport vehicle comprises a tail frame body 1, a loading ladder frame 2 is hingedly connected to the side of the tail frame body 1 near the rear of the vehicle, support frames 3 are vertically installed on both sides of the tail frame body 1, and a foldable support rod 4 is hingedly connected between the loading ladder frame 2 and the support frame 3;

[0056] like Figure 1-7 As shown, a hydraulic cylinder 5 is installed on the top of each support frame 3, and a hydraulic telescopic rod 6 is installed at the bottom of the hydraulic cylinder 5. A pulley A 7 is installed at the bottom of the hydraulic telescopic rod 6 through a bearing. A pulley support seat 8 is installed on the side of the two support frames 3 close to the rear of the vehicle, and a pulley B 9 is installed on the pulley support seat 8 through a bearing.

[0057] The hydraulic cylinder 5 drives the hydraulic telescopic rod 6 to extend and retract, so that the pulley A 7 installed on the telescopic rod 6 becomes a vertically movable pulley, and the pulley B 9 is a fixed pulley fixedly installed on the support frame 3.

[0058] like Figure 1-7As shown, a steel wire rope 10 is slidably installed on pulley A 7 and pulley B 9. Pulley A 7 and pulley B 9 are not on the same vertical plane. The steel wire rope 10 is connected to pulley A 7 and pulley B 9 in a Z shape. The two ends of the steel wire rope 10 are respectively fixedly mounted on the support frame 3 and the vehicle ladder frame 2.

[0059] The steel wire rope 10 slidingly connected between pulley A 7 and pulley B 9 can be used to pull the vehicle ladder frame 2 up and down. When the hydraulic cylinder 5 drives the hydraulic telescopic rod 6 to extend, it drives the pulley A 7 to move vertically downward. The vehicle ladder frame 2 is lifted up under the traction of the steel wire rope 10 and can be used as a rear protective plate on the vehicle transport vehicle to ensure the transportation safety of the commodity vehicle. When the hydraulic cylinder 5 drives the hydraulic telescopic rod 6 to retract, it drives the pulley A 7 to move vertically upward. The vehicle ladder frame 2 falls down under the traction of the steel wire rope 10 and the rear end contacts the ground for loading the commodity vehicle.

[0060] like Figure 1-7 As shown, the vehicle ladder frame 2 includes a ladder frame 11, which is hinged to the side of the tail frame body 1 near the rear of the vehicle. Two motors 12 are installed inside the ladder frame 11, and both motors 12 are axially connected to gears 13, and the two gears 13 are axially connected to a transmission chain belt 14.

[0061] By driving the gear 13 to rotate respectively through the two motors 12, the transmission chain 14 connected to the gear 13 can be rotated, and the transmission chain 14 can drive the automatic shipping vehicle, reducing labor waste and improving the working efficiency of the shipping vehicle.

[0062] like Figure 1-7 As shown, a support plate assembly 15 is slidably installed inside the transmission chain belt 14, and the support plate assembly 15 includes a support plate body 16, which is fixedly installed inside the ladder frame 11. The upper and lower sides of the support plate body 16 are connected to multiple rollers 17 through bearings, and the multiple rollers 17 are movably connected to the inner side of the transmission chain belt 14.

[0063] The support plate assembly 15 slidably connected to the inside of the transmission chain belt 14 can play a role of stable support during the vehicle loading process, thereby ensuring the stability and reliability of the vehicle loading operation.

[0064] like Figure 1-8As shown, the foldable support rod 4 includes a rod body A18, one end of the rod body A18 is hinged on the support frame 3, and the other end of the rod body A18 is installed with a pin seat A19, and a pin A 20 is installed inside the pin seat A19. One side of the rod body A18 is hinged with a rod body B 21, and the rod body B 21 is provided with an axis hole 22 at the position corresponding to the pin A 20. The other end of the rod body B 21 is hinged on the ladder frame 11, and a pin seat B 23 is fixedly installed on the support frame 3, and a pin B 24 is installed inside the pin seat B 23. The pin seat A19 and the pin seat B 23 both include a base plate 25, and two ear plates 26 are vertically installed on the base plate 25, and the two ear plates 26 are provided with pin holes 27 accordingly.

[0065] The foldable support rod 4 is hinged between the vehicle ladder frame 2 and the two support frames 3, and plays the role of traction support and increasing the load-bearing capacity of the vehicle ladder frame 2. If the vehicle ladder frame 2 is to be lifted, it is necessary to first pull out the pin A 20 from the pin seat A19, and wait until the hinged rod body A18 and the rod body B 21 are in a folded state under the traction of the wire rope 10, and then insert the pin B 24 into the pin seat B 23 and the shaft hole 22 on the rod body B 21. The pin B 24 and the pin seat B 23 can help limit the foldable support rod 4 in the folded state.

[0066] If the vehicle climbing ladder 2 is to be lowered, the pin B 24 must be pulled out from the pin seat B 23 first. When the hinged rod A18 and the rod B 21 are in an extended state under the traction of the wire rope 10, the pin A 20 is inserted into the pin seat A19 so that the rod B 21 abuts between the pin seat A19 and the pin A 20. The pin seat A19 and the pin A 20 can help limit the foldable support rod 4 when it is in the extended state.

[0067] The utility model is controlled by a hydraulic cylinder 5 to automatically rise and fall, including a tail frame body 1, a vehicle ladder frame 2 is hinged on the side of the tail frame body 1 near the rear of the vehicle, and support frames 3 are vertically installed on both sides of the tail frame body 1. A foldable support rod 4 is hinged between the vehicle ladder frame 2 and the support frame 3, and a steel wire rope 10 that is slidably connected between pulley A 7 and pulley B 9 can be used to pull the vehicle ladder frame 2 up and down. When the hydraulic cylinder 5 drives the hydraulic telescopic rod 6 to extend, it drives the pulley A 7 to move vertically downward. The vehicle ladder frame 2 is lifted up under the traction of the steel wire rope 10 and can be used as a tail guard plate on the vehicle transport vehicle to ensure the transportation safety of the commodity vehicle. When the hydraulic cylinder 5 drives the hydraulic telescopic rod 6 to retract, it drives the pulley A 7 moves vertically upward, and the rear end of the loading ladder frame 2 falls down under the traction of the wire rope 10 and contacts the ground for loading commodity vehicles. This automatic lifting loading ladder does not require manual pulling of the ladder throughout the entire process, reducing manpower waste and saving loading time. At the same time, the ladder has better strength and stronger load-bearing capacity, and is easy to maintain and use.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention may be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. An automatic lifting and loading ladder for a vehicle transport vehicle, comprising a tail frame body, characterized in that: A ladder frame for getting on the vehicle is hinged on the side of the tail frame body close to the rear of the vehicle, and support frames are vertically installed on both sides of the tail frame body, and a foldable support rod is hinged between the ladder frame for getting on the vehicle and the support frames; A hydraulic cylinder is installed on the top of each support frame, and a hydraulic telescopic rod is installed at the bottom of the hydraulic cylinder. A pulley A is installed at the bottom of the hydraulic telescopic rod through a bearing. Pulley support seats are installed on the sides of the two support frames close to the rear of the vehicle, and pulley B is installed on the pulley support seat through a bearing. Steel wire ropes are installed on the pulleys A and B, and the two ends of the steel wire ropes are respectively fixedly mounted on the support frame and the ladder frame for getting on the vehicle.

2. The automatic lifting and loading ladder for vehicle transport vehicles according to claim 1, characterized in that: The vehicle climbing frame includes a ladder frame, and the ladder frame is hinged to the side of the tail frame body near the rear of the vehicle. Two motors are installed inside the ladder frame, and the two motors are axially connected to gears, and the two gears are connected to transmission chains. A support plate assembly is slidably installed inside the transmission chain, and the support plate assembly includes a support plate body, and the support plate body is fixedly installed inside the ladder frame. A plurality of rollers are connected to the upper and lower sides of the support plate body through bearings, and the plurality of rollers are movably connected to the inner side of the transmission chain.

3. The automatic lifting and loading ladder for vehicle transport vehicles according to claim 2, characterized in that: The foldable support rod includes a rod body A, one end of the rod body A is hinged on the support frame, the other end of the rod body A is installed with a pin shaft seat A, and a pin shaft A is installed inside the pin shaft seat A. One side of the rod body A is hinged with a rod body B, and the rod body B is provided with an axis hole at the position corresponding to the pin shaft A. The other end of the rod body B is hinged on the ladder frame, and a pin shaft seat B is fixedly installed on the support frame, and a pin shaft B is installed inside the pin shaft seat B.

4. The automatic lifting and loading ladder for vehicle transport vehicles according to claim 3, characterized in that: The pulley A and the pulley B are not on the same vertical plane, and the steel wire rope is connected to the pulley A and the pulley B in a Z-shape.

5. The automatic lifting and loading ladder for vehicle transport vehicles according to claim 4, characterized in that: The pin shaft seat A and the pin shaft seat B both include a base plate, two ear plates are vertically mounted on the base plate, and pin shaft holes are correspondingly opened on the two ear plates.

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