Three-cylinder tail plate for freight vehicle

Abstract

The utility model relates to the field of vehicle accessories, in particular to a three-cylinder tail plate for a freight vehicle, which comprises a main cross beam, a bearing plate, an overturning oil cylinder, a lifting arm and two lifting oil cylinders, one end of the lifting arm is rotatably connected with the main cross beam, the other end of the lifting arm is rotatably connected with the bearing plate, one end of each lifting oil cylinder is rotatably connected with the main cross beam, and the other end of each lifting oil cylinder is rotatably connected with the bearing plate. One end of the overturning oil cylinder is rotationally connected with the main cross beam, the other end of the overturning oil cylinder is rotationally connected with the bearing plate, one end of the supporting rod is rotationally connected with the main cross beam, a transition frame is rotationally arranged at the other end of the supporting rod, the transition frame is rotationally connected with the bearing plate, and a supporting frame assembly is further rotationally arranged on the transition frame; a supporting plate is arranged on the bearing plate, and the supporting frame assembly makes contact with the supporting plate. Through the arrangement of the supporting frame assembly, after the bearing plate is turned over, the supporting block makes contact with the supporting plate, the plate body of the bearing plate is in a horizontal state all the time, the step of manual visual adjustment is avoided, the bearing plate is in the horizontal state all the time when turned down, and the adjusting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of vehicle accessories, in particular to a three-cylinder tail plate for a freight vehicle. Background Art

[0002] Tail lift, also known as car lifting tail lift, car loading and unloading tail lift, lifting tail lift, hydraulic car tail lift, is a hydraulic lifting and loading equipment installed at the rear of trucks and various vehicles. To realize the functions of car lifting tail lift, it is mainly necessary to realize the flipping and lifting of the tail lift. Among them, the flipping of the tail lift is used to change the vertical posture of the tail lift from storage to the horizontal posture when in use, and the lifting of the tail lift is used to adapt to different heights. Existing tail lifts are often driven by oil cylinders. Common ones are five-cylinder tail lifts, four-cylinder tail lifts and three-cylinder tail lifts. Among them, the three-cylinder tail lift has obvious cost advantages due to the small number of oil cylinders used.

[0003] At present, the existing automobile tailgate needs manual visual leveling when flipping, which is troublesome; in addition, the existing three-cylinder tailgate has only one oil cylinder for flipping, so in order to balance the force, it is generally set in the middle, which may interfere with the crossbeam of the automobile beam, and when the load on the load plate is not in the center, the load plate may be out of sync with the moving frame and cause tilt. Therefore, it is necessary to improve such a structure to overcome the above defects. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a three-cylinder tailgate for a freight vehicle. The utility model is achieved through the following technical solutions:

[0005] A three-cylinder tail plate for a freight vehicle comprises a main cross beam, a load-bearing plate, a tilting cylinder, two lifting arms and two lifting cylinders, wherein one end of the lifting arm is rotatably connected to the main cross beam, and the other end is rotatably connected to the load-bearing plate, one end of the lifting cylinder is rotatably connected to the main cross beam, and the other end is rotatably connected to the lifting arm, one end of the tilting cylinder is rotatably connected to the main cross beam, and the other end is rotatably connected to the load-bearing plate, and further comprises a support rod, one end of the support rod is rotatably connected to the main cross beam, and the other end is rotatably provided with a transition frame, the transition frame is rotatably connected to the load-bearing plate, a support frame assembly is also rotatably provided on the transition frame, a support plate is provided on the load-bearing plate, and the support frame assembly contacts the support plate.

[0006] In the above technical scheme: the main crossbeam is used to connect with the vehicle and carry the remaining components; the load-bearing plate is used to realize the loading and unloading function; the flipping cylinder is used to change the angle between the load-bearing plate and the horizontal plane; the lifting arm is used to space the load-bearing plate and the main crossbeam by a certain distance, so that the load-bearing plate will not interfere with the vehicle when it rotates; the lifting cylinder is used to cooperate with the lifting arm to change the posture of the lifting arm by extending or retracting, thereby realizing the change of the height of the load-bearing plate; the support rod is used to limit the posture of the transition frame during the flipping of the load-bearing plate, so that the support frame assembly will not change position; the transition frame is used to enable the support rod to move with the load-bearing plate when the height is adjusted; the support frame assembly is used to limit the load-bearing plate to be in a horizontal posture after being flipped down.

[0007] The utility model is further configured as follows: the support frame assembly comprises a support frame and a support block, the support block is detachably fixed on the support frame, the support frame is rotatably connected to the transition frame, and the support block is in contact with the support plate.

[0008] In the above technical solution: the support frame is used to realize the overall rotation of the support frame assembly, thereby adjusting the limiting angle of the support block to ensure that the load-bearing plate remains horizontal after flipping; the support block is used for horizontal limiting.

[0009] The utility model is further configured as follows: the tilting oil cylinder is rotatably connected to one end of the main beam, and the support rod is rotatably connected to the other end of the main beam.

[0010] In the above technical solution: the flip cylinder and the support rod are respectively arranged at the two ends of the main beam, and both play a balanced supporting role in the process of lifting the load-bearing plate, while also avoiding the interference between the flip cylinder and the beam in the middle of the vehicle beam.

[0011] The utility model is further configured as follows: the bearing plate further comprises a frame and a plate body, the cross-sectional shape of the frame is a right triangle, and the plate body is fixed to the top surface of the frame.

[0012] In the above technical solution: the frame makes the load-bearing plate have a higher load-bearing strength; the plate body makes the side of the load-bearing plate used for transportation flat; the cross-sectional shape of the frame is a right triangle, so that one end thereof is an acute angle, which is conducive to the cargo cart being pushed onto the load-bearing plate.

[0013] The utility model is further configured such that: the angle between the support block and the horizontal plane is consistent with the angle between the support plate and the plate body.

[0014] In the above technical solution: the angle between the support block and the horizontal plane is consistent with the angle between the support plate and the plate body, so that when the support plate contacts the support block, the plate body is parallel to the horizontal plane.

[0015] The utility model is further configured as follows: the right-angle side of the frame is arranged close to the main crossbeam.

[0016] In the above technical solution: the right-angle side of the frame is arranged close to the main crossbeam, so that when the frame contacts the loading and unloading platform, the acute angle position contacts the loading and unloading platform.

[0017] The utility model discloses a three-cylinder tailboard for a freight vehicle. Compared with the prior art:

[0018] 1. The utility model sets the support frame assembly so that after the load-bearing plate is turned over, the support block contacts the support plate, so that the plate body of the load-bearing plate is always horizontal during the descending process, avoiding the step of manually adjusting the error visually and improving the adjustment efficiency;

[0019] 2. The utility model also ensures the stable lifting and rotation of the load-bearing plate by arranging the support rod and the transition frame while the flip cylinder is arranged on one side of the main beam, thereby avoiding the interference with the vehicle beam caused by the flip cylinder being arranged in the middle of the main beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of the utility model;

[0021] Figure 2 It is a front view of the utility model;

[0022] Figure 3 It is a side view of the utility model;

[0023] Figure 4 It is a top view of the utility model;

[0024] Figure 5 It is a schematic diagram of the cooperation between the support block and the support plate of the utility model.

[0025] The corresponding component names represented by the numbers and letters in the figure are: 10-main beam; 20-bearing plate; 201-support plate; 202-frame; 203-plate body; 30-turning cylinder; 40-lifting arm; 50-lifting cylinder; 60-support rod; 601-transition frame; 602-support frame assembly; 602a-support frame; 602b-support block. DETAILED DESCRIPTION

[0026] The following is a detailed description of an embodiment of the utility model. This embodiment is implemented on the premise of the technical solution of the utility model, and a detailed implementation method and a specific operation process are given, but the protection scope of the utility model is not limited to the following embodiment.

[0027] like Figure 1-5As shown, the utility model proposes a three-cylinder tail plate for a freight vehicle, comprising a main beam 10, a load-bearing plate 20, a flip cylinder 30, two lifting arms 40 and two lifting cylinders 50, wherein one end of the lifting arm 40 is rotatably connected to the main beam 10, and the other end is rotatably connected to the load-bearing plate 20, one end of the lifting cylinder 50 is rotatably connected to the main beam 10, and the other end is rotatably connected to the lifting arm 40, one end of the flip cylinder 30 is rotatably connected to the main beam 10, and the other end is rotatably connected to the load-bearing plate 20, and further comprises a support rod 60, wherein one end of the support rod 60 is rotatably connected to the main beam 10, and the other end is rotatably provided with a transition frame 601, the transition frame 601 is also rotatably connected to the load-bearing plate 20, a support frame assembly 602 is rotatably provided on the transition frame 601, a support plate 201 is provided on the load-bearing plate 20, and the support frame assembly 602 contacts the support plate 201. Among them, a control panel and a control circuit can also be set on the main beam 10, which are used to control the flip cylinder 30 and the lifting cylinder 50; it also includes a connecting rod, and both ends of the connecting rod are fixedly connected to a lifting arm 40, so that the two lifting arms 40 move synchronously; a follower frame can be rotatably set on the main beam 10, and the lifting arm 40 and the lifting cylinder 50 are both rotatably connected to the follower frame, so that the rotation of the lifting arm 40 is more stable.

[0028] like Figure 1-5 As shown, the utility model proposes a three-cylinder tailgate for a freight vehicle, wherein the support frame assembly 602 comprises a support frame 602a and a support block 602b, wherein the support block 602b is detachably fixed to the support frame 602a, the support frame 602a is rotatably connected to the transition frame 601, and the support block 602b is in contact with the support plate 201. Among them, the connection point between the transition frame 601 and the support rod 60, the connection point between the transition frame 601 and the support frame 602a, and the connection point between the transition frame 601 and the bearing plate 20 are not located on the same straight line.

[0029] like Figure 1-5 As shown, the utility model proposes a three-cylinder tailgate for a freight vehicle, wherein the flip cylinder 30 is rotatably connected to one end of the main beam 10 , and the support rod 60 is rotatably connected to the other end of the main beam 10 .

[0030] like Figure 1-5 As shown, the utility model proposes a three-cylinder tail plate for a freight vehicle, the bearing plate 20 also includes a frame 202 and a plate body 203 , the cross-sectional shape of the frame 202 is a right triangle, and the plate body 203 is fixed to the top surface of the frame 202 .

[0031] like Figure 1-5As shown, the utility model proposes a three-cylinder tailgate for freight vehicles, the angle between the support block 602b and the horizontal plane is consistent with the angle between the support plate 201 and the plate body 203. Among them, a limit block is also provided on the transition frame 601, and the limit block is used to prevent the support frame 602a from rotating further after rotating to a specified angle, thereby ensuring that the angle between the support block 602b and the horizontal plane is consistent with the angle between the support plate 201 and the plate body 203.

[0032] like Figure 1-5 As shown, the utility model proposes a three-cylinder tailgate for a freight vehicle, in which the right-angle side of the frame 202 is arranged close to the main crossbeam 10 .

[0033] The working principle of the above technical solution is:

[0034] a) When the vehicle is to be used, the tilting cylinder is retracted so that the load-bearing plate is rotated to the side away from the vehicle;

[0035] b) The support plate contacts the support block and the load-bearing plate stops rotating;

[0036] c) At this time, the body of the load-bearing plate is horizontal;

[0037] d) The lifting cylinder retracts;

[0038] e) The lifting arm is forced to rotate, driving the load-bearing plate to move downward;

[0039] f) The tilting cylinder and the support rod move with it, but the tilting cylinder no longer extends or retracts;

[0040] g) The posture of the support block remains unchanged so that the load-bearing plate remains horizontal;

[0041] h) The load-bearing plate descends to the designated position;

[0042] i) If the load-bearing plate is not to be kept horizontal, the support block can be rotated so that the support block is not in contact with the support plate, and the load-bearing plate can be rotated to facilitate loading of goods.

[0043] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. A three-cylinder tailgate for a freight vehicle, comprising a main crossbeam (10), a load-bearing plate (20), a tilting cylinder (30), a lifting arm (40) and two lifting cylinders (50), wherein one end of the lifting arm (40) is rotatably connected to the main crossbeam (10) and the other end is rotatably connected to the load-bearing plate (20), one end of the lifting cylinder (50) is rotatably connected to the main crossbeam (10) and the other end is rotatably connected to the lifting arm (40), one end of the tilting cylinder (30) is rotatably connected to the main crossbeam (10) and the other end is rotatably connected to the load-bearing plate (20), characterized in that: The invention also comprises a support rod (60), one end of which is rotatably connected to the main crossbeam (10), and the other end of which is rotatably provided with a transition frame (601), the transition frame (601) is rotatably connected to the bearing plate (20), a support frame assembly (602) is rotatably provided on the transition frame (601), a support plate (201) is provided on the bearing plate (20), and the support frame assembly (602) is in contact with the support plate (201).

2. A three-cylinder tailgate for a freight vehicle according to claim 1, characterized in that: The support frame assembly (602) comprises a support frame (602a) and a support block (602b), wherein the support block (602b) is detachably fixed on the support frame (602a), the support frame (602a) is rotatably connected to the transition frame (601), and the support block (602b) is in contact with the support plate (201).

3. A three-cylinder tailgate for a freight vehicle according to claim 2, characterized in that: The tilting oil cylinder (30) is rotatably connected to one end of the main beam (10), and the support rod (60) is rotatably connected to the other end of the main beam (10).

4. A three-cylinder tailgate for a freight vehicle according to claim 3, characterized in that: The supporting plate (20) further comprises a frame (202) and a plate body (203); the cross-sectional shape of the frame (202) is a right triangle, and the plate body (203) is fixed to the top surface of the frame (202).

5. A three-cylinder tailgate for a freight vehicle according to claim 4, characterized in that: The angle between the support block (602b) and the horizontal plane is consistent with the angle between the support plate (201) and the plate body (203).

6. A three-cylinder tailgate for a freight vehicle according to claim 5, characterized in that: The right-angled side of the frame (202) is arranged close to the main crossbeam (10).

Images