A trailer bed siderail locking device

Abstract

This utility model relates to the field of trailer side panel fixing technology, specifically a trailer side panel locking device, comprising a column with a hollow internal structure, a fixing component slidably mounted on the top of the column for fixing the column, and multiple locking components on both side walls of the column; an installation component fixed to the bottom of the column; and a control component rotatably mounted on the inner wall of the bottom of the column, connected to the multiple locking components and the fixing component. This utility model enables the column to rotate. When the column is in a vertical state, it works with the locking components to fix the side panel, ensuring safety during cargo transportation. When the column needs to be in a horizontal state, the fixing components release the fixing between the column and the trailer top beam. During this process, the locking components work synchronously to release the locking state of the side panel, facilitating cargo loading and unloading.

Description

Technical Field

[0001] This utility model relates to the field of vehicle side panel fixing technology, specifically a locking device for the side panel of a trailer vehicle. Background Technology

[0002] The side panels of a trailer cargo box are a key component affecting transportation efficiency and safety. Some side panels are hinged to the vehicle and, together with uprights, can be opened and closed. To facilitate the locking and opening / closing of the side panels, a trailer cargo box side panel locking device is proposed.

[0003] In existing technologies, when locking the side panels of most trailer boxes, it is necessary to lock the pillar and the side panel. When loading and unloading goods, the pillar may affect the loading and unloading efficiency, so the pillar needs to be disassembled. However, the disassembly of the pillar requires a relatively cumbersome operation. Therefore, the existing locking device cannot simultaneously adjust the state of the pillar and the vehicle and the pillar and the side panel, which leads to inconvenience in operation. Utility Model Content

[0004] The purpose of this utility model is to provide a locking device for the side panel of a trailer body to solve the problems mentioned in the background art.

[0005] The technical solution of this utility model is: a locking device for the side panel of a trailer body, comprising: The column has a hollow internal structure, and a fixing component is slidably installed on the top of the column for fixing the column. Multiple locking components are provided on both side walls of the column. Mounting components, which are fixed to the bottom of the column; A control component is rotatably mounted on the inner wall of the bottom of the column. The control component is connected to multiple locking components and to a fixing component. The locking component includes: The second locking frame is fixed to the side wall of the column; A first locking frame is located near a second locking frame. Both the first and second locking frames have multiple insertion holes on their side walls. The first locking frame is fixed to the side rail of the carriage.

[0006] Preferably, the control component includes: A sleeve is rotatably mounted on the inner wall of the bottom of the column, and a threaded groove is provided inside the sleeve; A lead screw, wherein the lead screw is connected by a thread and a sleeve; A transmission rod is fixed to the top of a lead screw, and multiple connecting seats are fixed on the transmission rod; Two locking units are provided, both of which are connected to the connecting base. The locking units penetrate the side wall of the column and are adapted to the socket.

[0007] Preferably, the control component further includes: The second bevel gear is fixedly sleeved on the side wall of the sleeve; A shaft, which is rotatably mounted on the inner wall of the column; The first bevel gear is fixed to the end of the shaft, and the first bevel gear meshes with the second bevel gear; A handwheel, which is fixed to the end of the shaft.

[0008] Preferably, the locking unit includes: A connecting cylinder, wherein the connecting cylinder and the connecting seat are rotatably connected; The rod body is slidably connected to the connecting cylinder; A transmission block, which is fixed to the end of the rod; Two connecting blocks, both of which are rotatably connected to the transmission block; Two pins are provided, and each of the two pins is fixed to one of the two connecting blocks.

[0009] Preferably, the locking unit further includes: Two limiting blocks are provided, and the two limiting blocks are respectively fixed to two lead screws.

[0010] Preferably, the fixing component includes: A connecting plate, which is slidably disposed within the column; A locking pin is fixed to the top of the connecting plate and penetrates the top of the column.

[0011] Preferably, the fixing component further includes: The cylindrical body is fixed to the uppermost connecting seat; A sleeve rod is slidably disposed inside the cylinder, and the sleeve rod and the connecting plate are fixed together.

[0012] Preferably, the fixing component further includes: A spring, one end of which is fixed to a sleeve rod, and the other end of which is fixed to the inner wall of the cylinder.

[0013] Preferably, the mounting components include: A fixed base, wherein a mounting seat is rotatably provided on the top of the fixed base, and the mounting seat is fixed to the bottom of the column.

[0014] This utility model provides an improved locking device for the side panel of a trailer cargo box, which has the following improvements and advantages compared with the prior art: This utility model, through the setting of a fixing component, an installation component, and a locking component, enables the column to rotate. When the column is in a vertical state, the locking component, in conjunction with the column, fixes the side panel to ensure safety during cargo transportation. When the column needs to be in a horizontal state, the fixing component releases the column from the top beam of the vehicle body. During this process, the locking component works simultaneously to release the locking state of the side panel, facilitating the loading and unloading of goods. Attached Figure Description

[0015] The present invention will be further explained below with reference to the accompanying drawings and embodiments: Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the front view of the column structure of this utility model; Figure 3 This is a schematic diagram of the sleeve and lead screw structure of this utility model; Figure 4 This is a schematic cross-sectional view of the cylindrical body of this utility model; Figure 5 This is a schematic diagram of the first and second locking frames of this utility model.

[0016] Explanation of reference numerals in the attached figures: 1. Column; 2. Locking pin; 3. First locking frame; 4. Second locking frame; 5. Pin; 6. Fixed seat; 7. Mounting seat; 8. Handwheel; 9. Transmission rod; 10. Connecting plate; 11. Shaft; 12. First bevel gear; 13. Second bevel gear; 14. Sleeve; 15. Lead screw; 16. Connecting block; 17. Transmission block; 18. Rod body; 19. Connecting cylinder; 20. Limiting block; 21. Connecting seat; 22. Cylinder body; 23. Spring; 24. Sleeve rod; 25. Insertion hole. Detailed Implementation

[0017] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0018] This utility model provides an improved locking device for the side railing of a trailer cargo box. The technical solution of this utility model is as follows: like Figures 1-5 As shown, a trailer side panel locking device includes: The column 1 has a hollow structure inside. A fixing component is slidably installed on the top of the column 1 to fix the column 1. Multiple locking components are provided on both side walls of the column 1. The mounting components are fixed to the bottom of column 1; The control component is rotatably mounted on the inner wall at the bottom of the column 1. The control component is connected to multiple locking components and to a fixing component. The locking components include: The second locking frame 4 is fixed to the side wall of the column 1; The first locking frame 3 is located near the second locking frame 4. Both the first locking frame 3 and the second locking frame 4 have multiple insertion holes 25 on their side walls. The first locking frame 3 is fixed to the side rail of the carriage.

[0019] Furthermore, the control components include: Sleeve 14 is rotatably mounted on the inner wall of the bottom of column 1, and a threaded groove is provided inside sleeve 14. Lead screw 15 is connected to sleeve 14 via threads; Transmission rod 9 is fixed to the top of lead screw 15, and multiple connecting seats 21 are fixed on transmission rod 9; Two locking units are provided, both of which are connected to the connecting base 21. The locking units penetrate the side wall of the column 1 and are adapted to the socket 25.

[0020] Furthermore, the control components also include: The second bevel gear 13 is fixedly sleeved on the side wall of the sleeve 14; Shaft 11 is rotatably mounted on the inner wall of column 1; The first bevel gear 12 is fixed to the end of the shaft 11, and the first bevel gear 12 meshes with the second bevel gear 13; Handwheel 8 is fixed to the end of shaft 11.

[0021] When the handwheel 8 is rotated, the first bevel gear 12 is driven to rotate through the shaft 11, and then the sleeve 14 is driven to rotate through the second bevel gear 13. Through the threaded groove and lead screw 15 in the sleeve 14, the transmission rod 9 can rise or fall.

[0022] Furthermore, the locking unit includes: Connecting cylinder 19, connecting cylinder 19 and connecting seat 21 are rotatably connected; Rod 18 and connecting cylinder 19 are slidably connected; Transmission block 17 is fixed to the end of rod 18; Two connecting blocks 16, both of which are rotatably connected to the transmission block 17; Two pins 5 are fixed to two connecting blocks 16 respectively.

[0023] Furthermore, the locking unit also includes: Two limit blocks 20 are fixed to two lead screws 15 respectively.

[0024] As the connecting blocks 16 on both sides of the inside of the column 1 approach each other, when the limiting block 20 comes into contact, the connecting seat 21 can continue to descend through the sliding of the connecting cylinder 19 and the rod 18, thereby driving the fixing component to descend, ensuring that the side panel has been unlocked from the column 1 when the column 1 is laid flat.

[0025] Furthermore, the fixing components include: Connecting plate 10, which is slidably disposed inside column 1; Locking pin 2 is fixed to the top of connecting plate 10 and penetrates the top of column 1.

[0026] Furthermore, the fixing components also include: The cylinder 22 is fixed to the uppermost connecting seat 21; Sleeve rod 24 is slidably disposed inside cylinder 22, and sleeve rod 24 is fixed to connecting plate 10.

[0027] Furthermore, the fixing components also include: Spring 23, one end of spring 23 is fixed to sleeve rod 24, and the other end of spring 23 is fixed to the inner wall of cylinder 22.

[0028] When the side rail is locked, the locking pin 2 can first extend out of the top of the column 1 through the action of the spring 23, in conjunction with the sleeve rod 24 and the connecting plate 10. Then, the spring 23 is compressed, and the sleeve rod 24 retracts into the cylinder 22. During this process, the pin 5 extends out again to ensure that the column 1 is in a fixed state when the side rail is locked.

[0029] Furthermore, the installation components include: The fixed base 6 has a mounting base 7 rotatably mounted on its top, and the mounting base 7 is fixed to the bottom of the column 1.

[0030] The rotation between the mounting base 7 and the fixed base 6 allows the column 1 to rotate, thereby enabling the column 1 to be laid flat during loading and unloading of goods.

[0031] Specifically, the working principle is as follows: When in use, first fix the fixing seat 6 on the trailer box, then rotate the mounting seat 7 and the fixing seat 6 to make the column 1 rotate to a vertical state. Then close the side panel. At this time, the first locking frame 3 moves to the position between the second locking frame 4 and the column 1. Subsequently, the handwheel 8 is rotated. During the rotation of the handwheel 8, the first bevel gear 12 is driven to rotate through the shaft 11, and then the sleeve 14 is driven to rotate through the second bevel gear 13. Through the threaded groove and lead screw 15 in the sleeve 14, the transmission rod 9 can rise. During the upward movement of the transmission rod 9, the cylinder 22, sleeve rod 24, connecting plate 10 and locking pin 2 are first driven to rise through the connecting seat 21 at the top, and the state of the column 1 is fixed by the locking pin 2. As the transmission rod 9 continues to rise, each connecting seat 21 continues to rise. At this time, the spring 23 is compressed, the sleeve rod 24 retracts into the cylinder 22, and through the action of the connecting cylinder 19, the rod 18 and the transmission block 17, the connecting block 16 moves horizontally, thereby causing the pin 5 to extend out of the column 1 and enter the insertion hole 25 of the first locking frame 3 and the second locking frame 4. Through the action of the pin 5, the second locking frame 4 and the first locking frame 3 are locked, thereby realizing the locking of the side panel of the carriage.

Claims

1. A trailer bed siderail locking apparatus, characterized by, include: The column (1) has a hollow structure inside. A fixing component is slidably provided on the top of the column (1). The fixing component is used to fix the column (1). Multiple locking components are provided on both side walls of the column (1). The mounting components are fixed to the bottom of the column (1); The control component is rotatably mounted on the inner wall of the bottom of the column (1), and the control component is connected to multiple locking components and a fixing component. The locking component includes: The second locking frame (4) is fixed on the side wall of the column (1); The first locking frame (3) is located near the second locking frame (4). The side walls of the first locking frame (3) and the second locking frame (4) are provided with multiple insertion holes (25). The first locking frame (3) is fixed to the side rail of the carriage.

2. A trailer bed siderail locking apparatus according to claim 1, wherein, The control component includes: Sleeve (14), the sleeve (14) is rotatably mounted on the inner wall of the bottom of the column (1), and the sleeve (14) has a threaded groove inside; A lead screw (15) is connected to a sleeve (14) by a thread; A transmission rod (9) is fixed to the top of a lead screw (15), and multiple connecting seats (21) are fixed on the transmission rod (9). Two locking units are connected to the connecting seat (21). The locking units penetrate the side wall of the column (1) and are adapted to the socket (25).

3. A trailer side panel locking device according to claim 2, characterized in that, The control component also includes: The second bevel gear (13) is fixedly sleeved on the side wall of the sleeve (14); A shaft (11) is rotatably mounted on the inner wall of the column (1); The first bevel gear (12) is fixed to the end of the shaft (11), and the first bevel gear (12) meshes with the second bevel gear (13); Handwheel (8), which is fixed to the end of shaft (11).

4. A trailer bed siderail locking apparatus as defined in claim 2, wherein, The locking unit includes: Connecting cylinder (19), the connecting cylinder (19) and the connecting seat (21) are rotatably connected; The rod (18) and the connecting cylinder (19) are slidably connected; Transmission block (17), which is fixed to the end of rod (18); Two connecting blocks (16), both of which are rotatably connected to the transmission block (17); Two pins (5) are fixed to two connecting blocks (16) respectively.

5. A trailer bed siderail locking apparatus as defined in claim 4, wherein, The locking unit further includes: Two limiting blocks (20) are fixed to two lead screws (15) respectively.

6. A trailer side panel locking device according to claim 2, characterized in that, The fixing component includes: A connecting plate (10) is slidably disposed inside the column (1); Locking pin (2) is fixed to the top of the connecting plate (10) and the locking pin (2) passes through the top of the column (1).

7. A trailer side panel locking device according to claim 6, characterized in that, The fixing component also includes: The cylindrical body (22) and the uppermost connecting seat (21) are fixed together; Sleeve rod (24), which is slidably disposed inside cylinder (22), and sleeve rod (24) and connecting plate (10) are fixed.

8. A trailer bed siderail locking apparatus as defined in claim 1, wherein, The fixing component also includes: Spring (23), one end of which is fixed to sleeve rod (24), and the other end of which is fixed to inner wall of cylinder (22).

9. A trailer bed siderail locking apparatus as defined in claim 1 wherein, The installation components include: The fixed base (6) has a mounting base (7) rotatably mounted on its top, and the mounting base (7) is fixed to the bottom of the column (1).

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