Adjustable fence of semitrailer

Abstract

The utility model relates to the field of adjustable fences, and discloses a semitrailer adjustable fence which comprises a carriage body, a rotating rod is rotatably connected to the inner wall of the carriage body, a fence plate is fixedly connected to the outer wall of the rotating rod, a bolt is arranged on the outer wall of the fence plate, and the outer wall of the bolt is connected with a slot in the inner wall of the carriage body in an inserted mode. A guide rod is fixedly connected to the inner wall of the compartment body, a center guardrail is slidably connected to the inner wall of the guide rod, a guardrail a is fixedly connected to the outer wall of the guide rod, a guardrail b is slidably connected to the outer wall of the guide rod, a plurality of sets of supports a are slidably connected to the inner wall of the center guardrail, and a support b is slidably connected to the inner wall of the center guardrail. The outer wall of the guardrail b is fixedly connected with a handle, and the inner wall of the handle is elastically connected with a buckle assembly through a reset spring. According to the folding guardrail, when cargoes are carried, a plurality of groups of guardrails can be folded through the handles, and the guardrails do not need to be disassembled and reinstalled.

Description

Technical Field

[0001] The utility model relates to the field of adjustable fences, in particular to an adjustable fence for semi-trailers. Background Technique

[0002] The adjustable fence for semi-trailers is a common truck equipment used for adjustment when transporting goods of different sizes or shapes. Its design background mainly stems from the needs of the goods transportation industry and the consideration of convenience in actual operation.

[0003] The background of the adjustable fence for semi-trailers is to meet the transportation needs of different-sized goods, improve transportation efficiency and safety, and provide a more convenient operation experience for drivers. This design is relatively common in the freight industry and has gradually become one of the important equipment for improving freight efficiency and safety.

[0004] At the present stage, the height adjustment of the adjustable fence for semi-trailers is realized through a hydraulic system or an electric system, which improves the convenience and accuracy of adjustment, and also enhances the operability, safety and efficiency of the whole vehicle. However, this method has a high cost and has not been widely popularized. When loading and unloading goods, the conventional adjustable fence is disassembled and assembled according to the size and quantity of the goods. Although the disassembly and assembly structures are mostly relatively simple, frequent disassembly and assembly are rather troublesome. Secondly, the fence panels are mostly lifted and lowered by manpower, which is rather laborious. Therefore, an adjustable fence for semi-trailers is proposed to solve the above problems. Content of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides an adjustable fence for semi-trailers, aiming to improve the problems that the disassembly and assembly of the guardrail in the prior art are rather troublesome and the fence panels are rather laborious to lift and lower.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: an adjustable fence for semi-trailers, including a carriage main body, a rotating rod is rotatably connected to the inner wall of the carriage main body, a fence panel is fixedly connected to the outer wall of the rotating rod, a bolt is arranged on the outer wall of the fence panel, a guide rod is fixedly connected to the inner wall of the carriage main body, a central guardrail is slidably connected to the inner wall of the guide rod, a guardrail a is fixedly connected to the outer wall of the guide rod, a guardrail b is slidably connected to the outer wall of the guide rod, a plurality of groups of brackets a are slidably connected to the inner wall of the central guardrail, a bracket b is slidably connected to the inner wall of the central guardrail, a handle is fixedly connected to the outer wall of the guardrail b, and a buckle assembly is elastically connected to the inner wall of the handle through a return spring.

[0007] As a further description of the above technical solution:

[0008] A motor is fixedly connected to the bottom end of the carriage body. A bevel gear a is fixedly connected to the output shaft of the motor. Two groups of rotating shafts are rotatably connected to the inner wall of the carriage body. A bevel gear b is fixedly connected to the inner end of the rotating shaft close to the inside. A worm is fixedly connected to the outer wall of the rotating shaft. A worm gear is fixedly connected to the outer wall of the rotating rod.

[0009] As a further description of the above technical solution:

[0010] The buckle assembly includes a block. One end of the return spring is fixedly connected to the inner wall of the handle, and the other end of the return spring is fixedly connected to the back of the block. A number of groups of card slots are provided on the side wall of the carriage body, and the outer wall of the block is clamped with the inner wall of the card slot.

[0011] As a further description of the above technical solution:

[0012] The outer wall of the bolt is inserted into the inner wall slot of the carriage body.

[0013] As a further description of the above technical solution:

[0014] The top end of the bracket a is hinged to the inner wall of the guardrail a, and the bottom end of the bracket b is hinged to the inner wall of the guardrail b.

[0015] As a further description of the above technical solution:

[0016] The bottom end of the bracket a is hinged to the top end of the bracket b.

[0017] As a further description of the above technical solution:

[0018] The outer wall of the bevel gear a meshes with the outer wall of the bevel gear b.

[0019] As a further description of the above technical solution:

[0020] The top end of the worm gear meshes with the bottom end of the worm.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by setting the handle and the block, when the guardrail needs to be retracted during the handling of goods, the block is pressed inward to pull the block out of the card slot, and then the handle is pushed to slide along the inner wall of the carriage body, driving the guardrail b and the central guardrail to retract under the angular change of the bracket, without the need to frequently disassemble and assemble the guardrail, improving the efficiency of loading and unloading goods.

[0023] 2. In the utility model, by setting the motor, the worm gear and the worm, when the barrier needs to be lifted or lowered, the motor is started to drive the bevel gear a to drive the bevel gear b to rotate, so that the rotating shaft drives the worm to rotate, driving the worm gear to rotate, and the barrier is controlled to be lifted and lowered through the rotating rod, saving manpower and improving work efficiency. Brief Description of the Drawings

[0024] Figure 1 Fig. 1 is an overall front view of an adjustable fence for a semi-trailer proposed by the present utility model;

[0025] Figure 2 Fig. 2 is a front view of the handle of an adjustable fence for a semi-trailer proposed by the present utility model;

[0026] Figure 3 Fig. 3 is a front view of the worm and worm gear of an adjustable fence for a semi-trailer proposed by the present utility model;

[0027] Figure 4 Fig. 4 is an enlarged view of part A of an adjustable fence for a semi-trailer proposed by the present utility model; Figure 3 A Enlarged Schematic Diagram

[0028] Legend:

[0029] 1. Carriage body; 2. Rotating rod; 3. Rail board; 4. Bolt; 5. Guide rod; 6. Central guardrail; 7. Bracket a; 8. Guardrail a; 9. Guardrail b; 10. Handle; 11. Return spring; 12. Block; 13. Slot; 14. Bevel gear a; 15. Bevel gear b; 16. Rotating shaft; 17. Worm gear; 18. Worm; 19. Motor; 20. Bracket b. Detailed Description of the Preferred Embodiment

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0031] Refer to Figure 1 - Figure 2, an embodiment provided by the utility model: a semi-trailer adjustable fence, including a carriage main body 1, a rotating rod 2 is rotatably connected to the inner wall of the carriage main body 1, a fence plate 3 is fixedly connected to the outer wall of the rotating rod 2, and the fence plate 3 is used to protect the goods to prevent them from falling off the carriage. An insertion pin 4 is arranged on the outer wall of the fence plate 3, and the outer wall of the insertion pin 4 is inserted into the slot on the inner wall of the carriage main body 1. Inserting the insertion pin 4 into the slot on the inner wall of the carriage main body 1 further fixes the position of the fence plate 3 to prevent it from being knocked open by the impact of the goods during transportation. A guide rod 5 is fixedly connected to the inner wall of the carriage main body 1, a central guardrail 6 is slidably connected to the inner wall of the guide rod 5, a guardrail a8 is fixedly connected to the outer wall of the guide rod 5, a guardrail b9 is slidably connected to the outer wall of the guide rod 5, and the guardrail a8, the guardrail b9 and the central guardrail 6 cooperate with each other to protect the internal goods. A plurality of groups of brackets a7 are slidably connected to the inner wall of the central guardrail 6, and the top end of the bracket a7 is hinged to the inner wall of the guardrail a8. The change in the angle of the bracket a7 can drive the central guardrail 6 to move closer to the guardrail a8 and retract. A bracket b20 is slidably connected to the inner wall of the central guardrail 6, and the bottom end of the bracket b20 is hinged to the inner wall of the guardrail b9. When the guardrail b9 moves upward, the angle of the bracket b20 will change. The bottom end of the bracket a7 is hinged to the top end of the bracket b20. The change in the angle of the bracket b20 will drive the change in the angle of the bracket a7, thereby controlling the three guardrails to move closer to each other and retract. A handle 10 is fixedly connected to the outer wall of the guardrail b9, and a buckle assembly is elastically connected to the inner wall of the handle 10 through a return spring 11. The buckle assembly includes a block 12. One end of the return spring 11 is fixedly connected to the inner wall of the handle 10, and the other end of the return spring 11 is fixedly connected to the back of the block 12. Pressing the block 12 inward can make it squeeze the return spring 11 and retract into the handle 10. At the same time, the elastic force generated by the deformation of the return spring 11 gives the block 12 a reverse thrust to promote its reset. A plurality of groups of card slots 13 are opened on the side wall of the carriage main body 1, and the outer wall of the block 12 is clamped with the inner wall of the card slot 13. After the block 12 is completely retracted into the handle 10, the clamping connection with the card slot 13 is released. At this time, the handle 10 can be slid along the inner wall of the carriage main body 1 to drive the guardrail b9 to slide along the outer wall of the guide rod 5.

[0032] Refer to Figure 1 , Figure 3 and Figure 4, a motor 19 is fixedly connected to the bottom end of the carriage body 1, a bevel gear a14 is fixedly connected to the output shaft of the motor 19. Starting the motor 19 can drive the bevel gear a14 to rotate. Two groups of rotating shafts 16 are rotatably connected to the inner wall of the carriage body 1. A bevel gear b15 is fixedly connected to the inner end of the rotating shaft 16 close to the inside. The outer wall of the bevel gear a14 meshes with the outer wall of the bevel gear b15. The rotation of the bevel gear a14 will drive the bevel gear b15 to rotate, so that the rotating shaft 16 rotates. A worm 18 is fixedly connected to the outer wall of the rotating shaft 16. A worm gear 17 is fixedly connected to the outer wall of the rotating rod 2. The top end of the worm gear 18 meshes with the bottom end of the worm 17. The rotating shaft 16 will drive the worm 18 to rotate, so as to drive the worm gear 17 to rotate, so as to control the angle change of the rotating rod 2 driving the fence 3, control its lifting and lowering, without manual labor.

[0033] Working principle: When it is necessary to carry goods into the carriage body 1, pull out the bolt 4 outward so that it is withdrawn from the slot on the inner wall of the carriage body 1. Then start the motor 19 to drive the bevel gear a14 to rotate, so that the bevel gear b15 drives the rotating shaft 16 to rotate, and then drive the worm gear 17 to rotate through the worm 18, so as to control the rotating rod 2 to drive the fence 3 to lower. Then hold the handle 10 and press the block 12 inward, so that it squeezes the return spring 11 out of the card slot 13. Then drag the handle 10 to slide along the chute on the side wall of the carriage body 1, drive the guardrail b9 to move upward, so that the angle between the support b20 and the support a7 changes, control the central guardrail 6 and the guardrail b9 to be retracted and move upward together. After being completely retracted, release the block 12, and the return spring 11 will push the block 12 into the card slot 13 to fix the state when the guardrail is retracted. At this time, the goods in the carriage can be loaded and unloaded. After finishing, just lower the guardrail.

[0034] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An adjustable fence for a semitrailer, comprising a vehicle body (1), characterized in that: The inner wall of the carriage body (1) is rotatably connected to a rotating rod (2), the outer wall of the rotating rod (2) is fixedly connected to a guardrail (3), the outer wall of the guardrail (3) is provided with a latch (4), the inner wall of the carriage body (1) is fixedly connected to a guide rod (5), the inner wall of the guide rod (5) is slidably connected to a center guardrail (6), the outer wall of the guide rod (5) is fixedly connected to a guardrail a (8), the outer wall of the guide rod (5) is slidably connected to a guardrail b (9), the inner wall of the center guardrail (6) is slidably connected to a plurality of groups of brackets a (7), the inner wall of the center guardrail (6) is slidably connected to a bracket b (20), the outer wall of the guardrail b (9) is fixedly connected to a handle (10), and the inner wall of the handle (10) is elastically connected to a buckle assembly via a return spring (11).

2. The adjustable fence for a semitrailer according to claim 1, characterized in that: The bottom end of the carriage body (1) is fixedly connected to a motor (19), the output shaft of the motor (19) is fixedly connected to a bevel gear a (14), the inner wall of the carriage body (1) is rotatably connected to two sets of rotating shafts (16), the inner end of the rotating shaft (16) is fixedly connected to a bevel gear b (15), the outer wall of the rotating shaft (16) is fixedly connected to a worm (18), and the outer wall of the rotating rod (2) is fixedly connected to a worm wheel (17).

3. The adjustable fence for a semitrailer according to claim 1, characterized in that: The buckle assembly comprises a clamping block (12), one end of the return spring (11) is fixedly connected to the inner wall of the handle (10), the other end of the return spring (11) is fixedly connected to the back of the clamping block (12), the side wall of the carriage body (1) is provided with a plurality of groups of clamping grooves (13), and the outer wall of the clamping block (12) is clamped with the inner wall of the clamping groove (13).

4. The adjustable fence for a semitrailer according to claim 1, characterized in that: The outer wall of the latch pin (4) is plugged into a slot on the inner wall of the carriage body (1).

5. The adjustable fence for a semitrailer according to claim 1, characterized in that: The top end of the bracket a (7) is hinged to the inner wall of the guardrail a (8), and the bottom end of the bracket b (20) is hinged to the inner wall of the guardrail b (9).

6. The adjustable fence for a semitrailer according to claim 1, characterized in that: The bottom end of the bracket a (7) and the top end of the bracket b (20) are hinged to each other.

7. The adjustable fence for a semitrailer according to claim 2, characterized in that: The outer wall of the bevel gear a (14) is meshed with the outer wall of the bevel gear b (15).

8. The adjustable fence of a semitrailer according to claim 2, characterized in that: The top end of the worm wheel (17) is meshed with the bottom end of the worm (18).

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