Low-bed transportation semitrailer

Abstract

The utility model provides a low bed transport semitrailer which comprises a base, four mounting sleeves are fixedly mounted at the four corners of the bottom of the base, telescopic sleeves are fixedly mounted at the bottoms of the interiors of the four mounting sleeves, and telescopic rods are slidably mounted in the telescopic sleeves. According to the low-bed transportation semitrailer, when a bumpy road section is encountered in the running process, goods placed on the surface of the material plate can generate serious vibration and are prone to being damaged, and when vibration occurs, the material plate continuously moves up and down in a reciprocating mode and drives the telescopic rod to move up and down in the telescopic sleeve in a reciprocating mode; in the process, the spring is continuously compressed and reset, the buffering effect is effectively achieved, the probability of goods damage is reduced, due to the arrangement of the sealing ring, air in the telescopic sleeve can only enter or be exhausted through the air holes, the damping effect is achieved, and the situation that the spring moves up and down in a reciprocating mode and is difficult to stop is avoided.

Description

Technical Field

[0001] The utility model relates to the field of semi-trailers, in particular to a low-bed transport semi-trailer. Background Art

[0002] Low-bed semi-trailers are usually used to transport heavy-duty vehicles (such as tractors, buses, special-purpose vehicles, etc.), rail vehicles, mining machinery, forestry machinery, construction machinery (such as excavators, bulldozers, loaders, pavers, cranes, etc.) and other heavy-duty goods. The lower the center of gravity, the better the stability and safety, and the stronger the ability to transport extra-high goods and pass overhead obstacles. A semi-trailer is a trailer with an axle placed behind the center of gravity of the vehicle and equipped with a coupling device that can transmit horizontal and vertical forces to the tractor. A semi-trailer is generally a three-axle semi-trailer, which is divided into many types such as 11-meter warehouse semi-trailer, 13-meter warehouse semi-trailer, low-bed semi-trailer, etc. It is a heavy-duty transportation vehicle connected to the semi-trailer head through a traction pin.

[0003] However, the material plates of the existing semi-trailers in the market have poor cushioning and shock-absorbing functions during use. When the transport vehicle encounters bumpy roads during driving, the goods placed on the surface of the material plates will experience severe vibrations, which can easily lead to damage to the goods.

[0004] Therefore, it is necessary to provide a low-bed transport semi-trailer to solve the above-mentioned technical problems. Utility Model Content

[0005] The utility model provides a low-bed transport semi-trailer, which solves the problem that the buffering and shock-absorbing function of the material plate of the semi-trailer in the existing market is poor during use. When the transport vehicle encounters a bumpy road section during driving, the goods placed on the surface of the material plate will produce relatively serious vibrations, which can easily cause damage to the goods.

[0006] The utility model provides a low-bed transport semi-trailer, comprising: a base, four installation sleeves are fixedly installed at the bottom corners of the base, and the number of the installation sleeves is four, the bottoms of the four installation sleeves are fixedly installed with telescopic sleeves, the inside of the telescopic sleeves are slidably installed with telescopic rods, the bottoms of the four telescopic rods and the inside of the telescopic sleeves are fixedly installed with sealing rings, the bottoms of the four telescopic sleeves are fixedly installed with springs, the outsides of the four telescopic sleeves are opened with air holes, and the number of air holes is multiple, and a material plate is fixedly installed between the tops of the four telescopic rods.

[0007] Preferably, a tail plate is rotatably mounted on one end of the material plate, a second gear is rotatably mounted inside the tail plate, and the number of the second gears is two.

[0008] Preferably, a first gear is rotatably mounted inside one end of the material plate, and there are two first gears, and the first gear and the second gear are meshed with each other.

[0009] Preferably, a first mounting seat is fixedly mounted on one side of the top of the material plate, and the number of the first mounting seats is two.

[0010] Preferably, a hydraulic cylinder is rotatably mounted inside each of the two first mounting seats via a pin.

[0011] Preferably, one end of the two hydraulic cylinders is rotatably mounted with a second mounting seat via a pin, and the bottoms of the two second mounting seats are fixedly mounted to the top of the tail plate.

[0012] Compared with the related art, the low-bed transport semi-trailer provided by the utility model has the following beneficial effects:

[0013] When the transport vehicle encounters a bumpy road during driving, the goods placed on the surface of the material plate will produce severe vibrations, which can easily cause damage to the goods. When vibration occurs, the material plate continuously moves up and down, and the material plate drives the telescopic rod to move back and forth up and down inside the telescopic sleeve. During this process, the spring is continuously compressed and reset, which effectively plays a buffering role and reduces the probability of damage to the goods. Due to the setting of the sealing ring, the air inside the telescopic sleeve can only enter or discharge through the air holes, which plays a damping role and avoids the situation where the spring is difficult to stop moving up and down. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic structural diagram of a preferred embodiment of a low-bed transport semi-trailer provided by the utility model;

[0015] Figure 2 for Figure 1 The schematic diagram of the telescopic sleeve installation structure is shown;

[0016] Figure 3 for Figure 1 The enlarged structural diagram of point A is shown.

[0017] In the figure: 1. base; 2. mounting sleeve; 3. telescopic sleeve; 4. telescopic rod; 5. sealing ring; 6. spring; 7. air hole; 8. material plate; 9. tail plate; 10. first gear; 11. second gear; 12. first mounting seat; 13. hydraulic cylinder; 14. second mounting seat. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0019] Please refer to Figure 1 , Figure 2and Figure 3 ,in Figure 1 A schematic structural diagram of a preferred embodiment of a low-bed transport semi-trailer provided by the utility model; Figure 2 for Figure 1 The schematic diagram of the telescopic sleeve installation structure is shown; Figure 3 for Figure 1 The enlarged structural schematic diagram of point A shown in the figure shows a low-bed transport semi-trailer, comprising: a base 1, four mounting sleeves 2 are fixedly installed at the four corners of the bottom of the base 1, and the number of mounting sleeves 2 is four, the bottoms of the four mounting sleeves 2 are fixedly installed with telescopic sleeves 3, the insides of the telescopic sleeves 3 are slidably installed with telescopic rods 4, the bottoms of the four telescopic rods 4 and the insides of the telescopic sleeves 3 are fixedly installed with sealing rings 5, the bottoms of the four telescopic sleeves 3 are fixedly installed with springs 6, the outsides of the four telescopic sleeves 3 are provided with air holes 7, and the number of air holes 7 is multiple, and a material plate is fixedly installed between the tops of the four telescopic rods 4 8. When the transport vehicle encounters a bumpy road during driving, the goods placed on the surface of the material plate 8 will produce severe vibrations, which may easily damage the goods. When vibrations occur, the material plate 8 continuously moves up and down, and the material plate 8 drives the telescopic rod 4 to move up and down inside the telescopic sleeve 3. During this process, the spring 6 is continuously compressed and reset, which effectively plays a buffering role and reduces the probability of damage to the goods. Due to the setting of the sealing ring 5, the air inside the telescopic sleeve 3 can only enter or be discharged through the air hole 7, which plays a damping role and avoids the situation where the spring 6 is difficult to stop moving up and down.

[0020] A tail plate 9 is rotatably installed at one end of the material plate 8, and a second gear 11 is rotatably installed inside the tail plate 9, and the number of the second gears 11 is two. A first gear 10 is rotatably installed inside one end of the material plate 8, and the number of the first gears 10 is two. The first gear 10 and the second gear 11 are meshed with each other. Through the cooperation between the first gear 10 and the second gear 11, the rotation stability of the tail plate 9 is improved, and at the same time, the installation strength of the tail plate 9 is improved, and it is safer when used.

[0021] A first mounting seat 12 is fixedly installed on one side of the top of the material plate 8, and there are two first mounting seats 12. Hydraulic cylinders 13 are rotatably installed inside the two first mounting seats 12 through pins. Second mounting seats 14 are rotatably installed on one end of the two hydraulic cylinders 13 through pins. The bottoms of the two second mounting seats 14 are fixedly installed between the top of the tail plate 9. When the angle of the tail plate 9 needs to be changed, the hydraulic cylinder 13 performs a telescopic operation. Due to the arrangement of the first mounting seat 12 and the second mounting seat 14, when the hydraulic cylinder 13 contracts, the tail plate 9 rotates and stands up, and when the hydraulic cylinder 13 extends, the tail plate 9 rotates and lies flat.

[0022] The working principle of a low-bed transport semi-trailer provided by the utility model is as follows:

[0023] Step 1: When the transport vehicle encounters a bumpy road during driving, the goods placed on the surface of the material plate 8 will produce severe vibrations, which can easily cause damage to the goods. When vibration occurs, the material plate 8 continuously moves up and down, and the material plate 8 drives the telescopic rod 4 to move back and forth up and down inside the telescopic sleeve 3. During this process, the spring 6 is continuously compressed and reset, which effectively plays a buffering role and reduces the probability of damage to the goods. Due to the setting of the sealing ring 5, the air inside the telescopic sleeve 3 can only enter or be discharged through the air hole 7, which plays a damping role and avoids the situation where the spring 6 is difficult to stop moving up and down.

[0024] Step 2: Through the cooperation between the first gear 10 and the second gear 11, the rotation stability of the tail board 9 is improved, and the installation strength of the tail board 9 is improved, which is safer when used. When the angle of the tail board 9 needs to be changed, the hydraulic cylinder 13 performs a telescopic operation. Due to the arrangement of the first mounting seat 12 and the second mounting seat 14, when the hydraulic cylinder 13 contracts, the tail board 9 rotates and stands up, and when the hydraulic cylinder 13 extends, the tail board 9 rotates and lies flat.

[0025] Compared with the related art, the low-bed transport semi-trailer provided by the utility model has the following beneficial effects:

[0026] When the transport vehicle encounters a bumpy road during driving, the goods placed on the surface of the material plate 8 will produce severe vibrations, which can easily cause damage to the goods. When vibration occurs, the material plate 8 continuously moves back and forth up and down, and the material plate 8 drives the telescopic rod 4 to move back and forth up and down inside the telescopic sleeve 3. During this process, the spring 6 is continuously compressed and reset, which effectively plays a buffering role and reduces the probability of damage to the goods. Due to the setting of the sealing ring 5, the air inside the telescopic sleeve 3 can only enter or be discharged through the air hole 7, which plays a damping role and avoids the situation where the spring 6 is difficult to stop moving up and down.

[0027] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A low-bed transport semitrailer, comprising: A base (1), characterized in that: mounting sleeves (2) are fixedly installed at the four corners of the bottom of the base (1), and the number of mounting sleeves (2) is four, a telescopic sleeve (3) is fixedly installed at the bottom of the four mounting sleeves (2), a telescopic rod (4) is slidably installed inside the telescopic sleeve (3), a sealing ring (5) is fixedly installed at the bottom of the four telescopic rods (4) and located inside the telescopic sleeve (3), a spring (6) is fixedly installed at the bottom of the four telescopic sleeves (3), an air hole (7) is opened on the outside of the four telescopic sleeves (3), and the number of air holes (7) is multiple, and a material plate (8) is fixedly installed between the tops of the four telescopic rods (4).

2. A low bed transport semi-trailer according to claim 1, characterized in that: A tail plate (9) is rotatably mounted on one end of the material plate (8), and a second gear (11) is rotatably mounted inside the tail plate (9), and the number of the second gears (11) is two.

3. A low bed transport semi-trailer according to claim 2, characterized in that: A first gear (10) is rotatably mounted inside one end of the material plate (8), and there are two first gears (10). The first gear (10) and the second gear (11) are meshed with each other.

4. A low bed transport semi-trailer according to claim 3, characterized in that: A first mounting seat (12) is fixedly mounted on one side of the top of the material plate (8), and the number of the first mounting seats (12) is two.

5. A low bed transport semi-trailer according to claim 4, characterized in that: A hydraulic cylinder (13) is rotatably mounted inside each of the two first mounting seats (12) via a pin shaft.

6. A low bed transport semi-trailer according to claim 5, characterized in that: One end of the two hydraulic cylinders (13) is rotatably mounted with a second mounting seat (14) via a pin shaft, and the bottoms of the two second mounting seats (14) are fixedly mounted to the top of the tail plate (9).

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