A trailer with a follow-up steering function

Abstract

This utility model relates to the field of trailer technology and discloses a trailer with a following steering function, including a following steering assembly. The top of the following steering assembly is provided with a top support plate. Two rotating connecting discs are symmetrically rotated on both sides of the middle of the top support plate. Fixed connecting cylinders are provided on the sides of the rotating connecting discs. Side connecting columns are evenly provided around the sides of the top support plate. This utility model, by providing a following steering assembly and a top support plate on the following steering assembly, allows the second wheel and the first wheel in the following steering assembly to rotate on the connecting slider through a steering connecting rod. The first wheel will not deflect synchronously at the same angle, thereby increasing the deflection angle between the second wheel and the first wheel. This allows the first wheel to follow the second wheel and move in a tractor-trailer, making following steering smoother in confined spaces and more flexible in use.

Description

Technical Field

[0001] This utility model relates to the field of trailer technology, specifically a trailer with a following steering function. Background Technology

[0002] Trailers are important handling equipment in modern logistics transportation. In use, one tractor unit can pull one or more trailers to form a trailer train, which can realize the rapid turnover and transportation of goods over short distances. They are widely used in material handling places such as factories, stations, logistics centers, and warehouses.

[0003] A search revealed a Chinese patent publication number (CN 219668485 U) for an aircraft towing and steering trailer, comprising a tow bar. A buffer mechanism is fixedly connected to the left end of the tow bar, and a connecting mechanism is fixedly connected to the left end of the buffer mechanism. A fixing lug is fixedly connected to the middle of the right end of the buffer mechanism. Two mounting lugs are movably connected to the fixing lugs via a movable shaft. The ends of the two mounting lugs furthest from the tow bar are jointly fixedly connected to the towing and steering trailer body. A fixing sleeve is fixedly connected to the outer surface of the tow bar. L-shaped connecting rods are fixedly connected to the front left and front right sides, as well as the rear left and rear right sides of the outer surface of the fixing sleeve. Universal wheels are fixedly connected to the lower ends of the four L-shaped connecting rods. This aircraft towing and steering trailer effectively reduces the buffering force during aircraft towing and steering, while also facilitating the limiting of the aircraft wheel frame and simplifying towing.

[0004] The trailers in the aforementioned patents still have some shortcomings. The wheels of most existing warehouse trailers are arranged side by side, which greatly restricts the overall following and turning of the trailer. When turning, due to the insufficient following and tracking ability of the rear of the vehicle, a large turning space is required. Therefore, for warehouses with limited space, it is more difficult to use in practice, and the turning and following ability is poor, which is not convenient for users to use flexibly. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a trailer with a following steering function. This solves the problem that most existing warehouse trailers have wheels arranged side by side, which greatly limits the overall following and steering of the trailer. When turning, due to insufficient tracking ability of the rear of the vehicle, a large turning space is required. Therefore, for warehouses with limited space, this is difficult to use in practice, with poor steering follow-up and inconvenience for users to use flexibly.

[0006] This utility model provides the following technical solution: a trailer with a following steering function, including a following steering assembly, a top support plate is provided on the top of the following steering assembly, two rotating connecting discs are symmetrically rotated on both sides of the middle of the top support plate, a fixed connecting cylinder is provided on the side of each rotating connecting disc, and side connecting columns are evenly provided around the sides of the top support plate.

[0007] The following steering assembly includes a first connecting column, with first wheels rotatably mounted at both ends of the first connecting column. A first mounting bracket is mounted on the first connecting column, and a steering connecting rod is mounted on the top of the first mounting bracket. The top end of the steering connecting rod is fixedly connected to the fixed connecting cylinder, and the end of the steering connecting rod is rotatably connected to the first mounting bracket via an inserted first rotating pin. A second connecting column is mounted on the side of the first connecting column, with second wheels rotatably mounted at both ends of the second connecting column. A second mounting bracket is mounted on the second connecting column, and a top connecting plate is mounted on the top of the second mounting bracket. The top end of the top connecting plate is fixedly connected to the fixed connecting cylinder, and the top connecting plate is rotatably connected to the second mounting bracket via a second rotating pin inserted on the top connecting plate. A steering connecting plate is mounted on the side of the top connecting plate, and a limiting groove is formed in the middle of the steering connecting plate. A connecting slider is slidably mounted in the limiting groove, and two inner wall limiting grooves are symmetrically formed on both sides of the inner wall of the limiting groove.

[0008] Preferred technical solution 1: Two sliding limit blocks are symmetrically arranged on both sides of the connecting slider, and the sliding limit blocks are slidably inserted into the inner wall limit groove.

[0009] Preferred technical solution 2: The top end of the steering connecting rod extends to the top of the connecting slider, and the end of the steering connecting rod is rotatably connected to the connecting slider through an inserted third rotating pin.

[0010] Preferred technical solution 3: The side connecting columns are located around the bottom side of the top support plate, and the bottom end of the side connecting columns is not connected to the first mounting frame and the second mounting frame.

[0011] This design enables the top support plate, positioned above the following steering assembly, to be more stable when carrying objects.

[0012] Preferred technical solution four: The steering connecting rod is located above the steering connecting plate.

[0013] This solution enables the steering linkage rod to avoid motion interference with the steering linkage plate when deflection occurs.

[0014] Preferred technical solution five: The side of the second mounting bracket is provided with a fixing bracket that facilitates connection and pulling.

[0015] This solution makes it easier for the tractor to connect to the device.

[0016] Compared with the prior art, this utility model provides a trailer with a following steering function, which has the following advantages:

[0017] (1) This utility model is provided with a following steering component and a top support plate. The second wheel and the first wheel in the following steering component rotate on the connecting slider through a steering connecting rod. The connecting slider can slide in the limiting groove when the steering connecting plate rotates, so that when the second wheel deflects, the first wheel will not deflect synchronously at the same angle, thereby increasing the deflection angle between the second wheel and the first wheel. This allows the first wheel to follow the second wheel and move with the steering under the pull of the tractor. The following steering is smoother in a narrow space and more flexible to use. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 For the present utility model Figure 1 A schematic diagram of the following steering component;

[0020] Figure 3 For the present utility model Figure 2 Enlarged view of the structure of the steering connection plate;

[0021] Figure 4 For the present utility model Figure 1 A side view of the structure of the top support plate.

[0022] In the diagram: 1. Following steering assembly; 2. Top support plate; 3. Rotating connecting plate; 4. Fixed connecting cylinder; 5. Side connecting column;

[0023] 101. First connecting post; 102. First wheel; 103. First mounting bracket; 104. Steering connecting rod; 105. First rotating pin; 106. Second connecting post; 107. Second wheel; 108. Second mounting bracket; 109. Top connecting plate; 110. Second rotating pin; 111. Steering connecting plate; 112. Limiting groove; 113. Connecting slider; 114. Inner wall limiting groove; 115. Sliding limiting block; 116. Third rotating pin. Detailed Implementation

[0024] Please see Figure 1-4 ,

[0025] Example 1: A trailer with a following steering function includes a following steering assembly 1. A top support plate 2 is provided on the top of the following steering assembly 1. Two rotating connecting discs 3 are symmetrically rotated on both sides of the middle of the top support plate 2. Fixed connecting cylinders 4 are provided on the sides of the rotating connecting discs 3. Side connecting columns 5 are evenly provided around the sides of the top support plate 2.

[0026] The following steering assembly 1 includes a first connecting post 101, with first wheels 102 rotatably mounted at both ends of the first connecting post 101. A first mounting bracket 103 is mounted on the first connecting post 101, and a steering connecting rod 104 is mounted on the top of the first mounting bracket 103. The top end of the steering connecting rod 104 is fixedly connected to the fixed connecting cylinder 4, and the end of the steering connecting rod 104 is rotatably connected to the first mounting bracket 103 through an inserted first rotating pin 105. A second connecting post 106 is mounted on the side of the first connecting post 101, and second wheels 107 are rotatably mounted at both ends of the second connecting post 106.

[0027] A second mounting bracket 108 is provided on the second connecting column 106. A top connecting plate 109 is provided on the top of the second mounting bracket 108. The top end of the top connecting plate 109 is fixedly connected to the fixed connecting cylinder 4. The top connecting plate 109 and the second mounting bracket 108 are rotatably connected through a second rotating pin 110 inserted on the top connecting plate 109. A steering connecting plate 111 is provided on the side of the top connecting plate 109. A limiting groove 112 is provided in the middle of the steering connecting plate 111. A connecting slider 113 is slidably provided in the limiting groove 112. Two inner wall limiting grooves 114 are symmetrically provided on both sides of the inner wall of the limiting groove 112.

[0028] Two sliding limit blocks 115 are symmetrically arranged on both sides of the connecting slider 113. The sliding limit blocks 115 are slidably inserted into the inner wall limit groove 114. The top end of the steering connecting rod 104 extends to the top of the connecting slider 113. The end of the steering connecting rod 104 is rotatably connected to the connecting slider 113 through the inserted third rotating pin 116.

[0029] Example 2: The difference between this example and Example 1 is that the side connecting column 5 is located around the bottom side of the top support plate 2, and the bottom end of the side connecting column 5 is not connected to the first mounting bracket 103 and the second mounting bracket 108.

[0030] This makes the top support plate 2, which is positioned above the following steering assembly 1, more stable when carrying objects.

[0031] Example 3: The difference between this example and Example 1 is that the steering connecting rod 104 is located above the steering connecting plate 111.

[0032] This ensures that the steering connecting rod 104 can avoid motion interference with the steering connecting plate 111 when deflection occurs.

[0033] Example 4: The difference between this example and Example 1 is that the second mounting bracket 108 has a fixing bracket on its side for easy connection and pulling.

[0034] This makes it easier for the tractor to connect to the device.

[0035] In this embodiment, since the wheels of existing warehouse trailers are mostly arranged side by side, this greatly restricts the overall following and turning of the trailer. When turning, due to the insufficient following and tracking ability of the rear of the vehicle, a large turning space is required. Therefore, for warehouses with limited space, it is more difficult to use in practice, and the turning and following ability is poor, which is not convenient for users to use flexibly.

[0036] In summary, in practical implementation, when a user needs to transport warehouse items, the user first needs to connect the fixed frame set on the following steering assembly 1 to the pulling end of the tractor, so that the tractor can drive the second wheels 107 on both sides of the second connecting column 106 to rotate. Since the top connecting plate 109 is rotatably set on the second mounting frame 108, the end of the top connecting plate 109 is connected to the steering connecting plate 111. The top of the first mounting frame 103 is rotatably connected to the steering connecting rod 104 through the first rotating pin 105. The end of the steering connecting rod 104 is rotatably connected to the connecting slider 113 through the third rotating pin 116, and the bottom end of the steering connecting rod 104 is connected to the connecting slider 113.

[0037] The connecting slider 113 slides within the limiting groove 112, thereby allowing the steering connecting plate 111 to deflect when the tractor pulls the second connecting column 106 at the front to turn. The connecting slider 113 on the steering connecting plate 111 can slide within the limiting groove 112, and the steering connecting rod 104 can deflect on the first mounting bracket 103 at the same time. This allows the first wheel 102 to also deflect and move when the second wheel 107 rotates, enabling the first wheel 102 and the second wheel 107 to follow the steering more closely, making turning in confined spaces smoother.

[0038] Furthermore, two rotating connecting discs 3 are symmetrically rotatably arranged at the bottom end of the top support plate 2. The sides of the rotating connecting discs 3 are connected to the end of the steering connecting rod 104 and the top connecting disc 109 respectively through the fixed connecting cylinders 4. Thus, when the second wheel 107 and the first wheel 102 deflect, the rotating connecting discs 3 at the bottom of the top support plate 2 deflect, while the top support plate 2 itself will not bend and will always remain in a horizontal state. This helps to make the items carried on the top support plate 2 more stable. In addition, side connecting columns 5 are evenly arranged around the bottom of the top support plate 2. When the top support plate 2 is tilted, the side connecting columns 5 can abut against the top surfaces of the second mounting frame 108 and the first mounting frame 103 in critical moments to ensure that the top support plate 2 will not tilt further and to ensure the safe transport of goods.

Claims

1. A trailer with a following steering function, characterized in that: The following steering assembly (1) is provided with a top support plate (2) on the top. Two rotating connecting discs (3) are symmetrically rotated on both sides of the middle part of the top support plate (2). Fixed connecting cylinders (4) are provided on the sides of the rotating connecting discs (3). Side connecting columns (5) are evenly arranged around the sides of the top support plate (2). The following steering assembly (1) includes a first connecting post (101), with first wheels (102) rotatably mounted at both ends of the first connecting post (101). A first mounting bracket (103) is mounted on the first connecting post (101), and a steering connecting rod (104) is mounted on the top of the first mounting bracket (103). The top end of the steering connecting rod (104) is fixedly connected to the fixed connecting cylinder (4), and the end of the steering connecting rod (104) is rotatably connected to the first mounting bracket (103) via an inserted first rotating pin (105). A second connecting post (106) is mounted on the side of the first connecting post (101), with second wheels (107) rotatably mounted at both ends of the second connecting post (106). There is a second mounting bracket (108), and a top connecting plate (109) is provided on the top of the second mounting bracket (108). The top end of the top connecting plate (109) is fixedly connected to the fixed connecting cylinder (4). The top connecting plate (109) and the second mounting bracket (108) are rotatably connected through a second rotating pin (110) inserted on the top connecting plate (109). A steering connecting plate (111) is provided on the side of the top connecting plate (109). A limiting groove (112) is opened in the middle of the steering connecting plate (111). A connecting slider (113) is slidably arranged in the limiting groove (112). Two inner wall limiting grooves (114) are symmetrically opened on both sides of the inner wall of the limiting groove (112).

2. A trailer with following steering function according to claim 1, characterized in that: Two sliding limit blocks (115) are symmetrically arranged on both sides of the connecting slider (113), and the sliding limit blocks (115) are slidably inserted into the inner wall limit groove (114).

3. A trailer with following steering function according to claim 2, characterized in that: The top end of the steering connecting rod (104) extends to the top of the connecting slider (113), and the end of the steering connecting rod (104) is rotatably connected to the connecting slider (113) through an inserted third rotating pin (116).

4. A trailer with following steering function according to claim 3, characterized in that: The side connecting column (5) is located around the bottom side of the top support plate (2), and the bottom end of the side connecting column (5) is not connected to the first mounting bracket (103) and the second mounting bracket (108).

5. A trailer with following steering function according to claim 4, characterized in that: The steering connecting rod (104) is located above the steering connecting plate (111).

6. A trailer with following steering function according to claim 5, characterized in that: The second mounting bracket (108) has a fixing bracket on its side for easy connection and pulling.

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