Gooseneck-detachable low-bed semitrailer frame structure

Abstract

The utility model provides a low bed semitrailer frame structure with a detachable gooseneck, which belongs to the technical field of automobiles, comprises a frame main body, and is characterized in that one side of the frame main body is fixedly connected with a vertical adjusting plate, the vertical adjusting plate is provided with a hanging plate adjusting mechanism, the bottom of the frame main body is provided with a buffer bottom plate, and the hanging plate adjusting mechanism is provided with a hanging plate. Two pairs of rotating seats are arranged at the bottom of the buffering bottom plate, and a buffering mechanism is arranged at the bottom of the buffering bottom plate. Through the arrangement of the hanging plate adjusting mechanism, the hanging plate can be rapidly adjusted to facilitate connection when facing different types of vehicle heads, the convenience of the device is greatly improved, and meanwhile, the buffering performance of the device can be greatly improved and the loss rate of the device can be reduced during transportation due to the arrangement of the buffering mechanism.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobiles, and particularly relates to a gooseneck detachable low-bed semi-trailer frame structure. Background Art

[0002] Low-bed semi-trailers are usually used in combination with automobiles to transport large equipment and instruments on roads. Since this type of equipment is large in weight and volume, the transportation safety is low and the transportation difficulty is high. The load surface of the low-bed semi-trailer is low and the center of gravity of the goods is low, which can further ensure the stable transportation of the goods.

[0003] According to the search, the patent document with the publication number CN201863895U discloses a gooseneck detachable low-bed semi-trailer frame structure, including a gooseneck type frame body. The gooseneck type frame body is composed of a front part of the frame and a rear part of the frame. A draw pin connected to the traction force is arranged on the front part of the frame. It also includes a connecting seat, which includes multiple support ribs extending horizontally. Side plates are fixed at both ends of the support ribs. Pin shafts are respectively arranged at the lower ends of the outer sides of the two side plates. An oil cylinder seat for installing a lifting oil cylinder is horizontally installed between the tops of the two side plates. A perforated connecting plate fixed to the front part of the frame is arranged at the lower end of the side plate.

[0004] The existing gooseneck detachable low-bed semi-trailer frame still has the following deficiencies: The existing gooseneck detachable low-bed semi-trailer frame cannot adjust the connection height of the frame specifically. When facing different types of vehicle heads, it cannot be connected efficiently and quickly. And because the frame generally has a high load, the existing device is not provided with an efficient buffer mechanism, so the loss of the frame during transportation is relatively high. Summary of the Utility Model

[0005] In order to achieve the above object, the utility model adopts the following technical solutions:

[0006] A gooseneck detachable low-bed semi-trailer frame structure, including a frame body, characterized in that a vertical adjusting plate is fixedly connected to one side of the frame body, and a hanging plate adjusting mechanism is arranged on the vertical adjusting plate;

[0007] A buffer bottom plate is arranged at the bottom of the frame body, two pairs of rotating seats are arranged at the bottom of the buffer bottom plate, and a buffer mechanism is arranged at the bottom of the buffer bottom plate.

[0008] Preferably, the hanging plate adjusting mechanism includes a through groove, a sliding column, a hanging plate and a connecting sliding sleeve. The through groove is opened on the vertical adjusting plate, the sliding column is fixedly connected to the vertical adjusting plate, the connecting sliding sleeve is slidably connected to the sliding column, the hanging plate is slidably connected in the through groove, and the hanging plate is fixedly connected to the connecting sliding sleeve.

[0009] Preferably, a pair of rotating plates are fixedly connected to the frame body corresponding to the position of the vertical adjusting plate. A bidirectional threaded rod is arranged between the two rotating plates. Nuts are threadedly connected to both sides of the bidirectional threaded rod. An articulated seat is arranged on the two nuts. A support column is articulated on the articulated seat. The support column is rotatably connected to the corresponding side of the connecting sliding sleeve.

[0010] Preferably, a regulating handle is rotatably connected to one of the two rotating plates. The rotating shaft of the regulating handle penetrates through the rotating plate and is fixedly connected to the bidirectional threaded rod coaxially.

[0011] Preferably, the buffer mechanism includes a buffer shaft, a buffer sliding sleeve and a sliding shaft. The buffer shaft is rotatably connected in the rotating seat. The buffer sliding sleeve is rotatably connected to one end of the buffer shaft away from the rotating seat. The sliding shaft is slidably connected in two buffer sliding sleeves on the corresponding side.

[0012] Preferably, a driving plate is arranged at the bottom of the buffer bottom plate. Two pairs of mortgaging seats are fixedly connected to the driving plate. The sliding shaft is fixedly connected in two mortgaging seats on the corresponding side. Three pairs of driving wheels are arranged at the bottom of the driving plate.

[0013] Preferably, a high-pressure spring is arranged between the buffer sliding sleeve and the mortgaging seat on the corresponding side. The high-pressure spring abuts against the buffer sliding sleeve and the mortgaging seat respectively.

[0014] Compared with the prior art, the present utility model has the following advantages:

[0015] By setting the hanging plate adjusting mechanism, when facing different types of vehicle heads, it can be quickly adjusted for easy connection, greatly improving the convenience of the device. At the same time, a buffer mechanism is provided, which can greatly improve the buffer performance of the device during transportation and reduce the loss rate of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of a gooseneck detachable low-bed semi-trailer frame structure proposed by the present utility model;

[0017] Figure 2 is a three-dimensional structural schematic diagram of a hanging plate adjusting mechanism of a gooseneck detachable low-bed semi-trailer frame structure proposed by the present utility model;

[0018] Figure 3 is a three-dimensional structural schematic diagram of another angle of a hanging plate adjusting mechanism of a gooseneck detachable low-bed semi-trailer frame structure proposed by the present utility model;

[0019] Figure 4 is a three-dimensional structural schematic diagram of a buffer mechanism of a gooseneck detachable low-bed semi-trailer frame structure proposed by the present utility model.

[0020] In the figure: 1 is the frame body, 2 is the vertical adjustment plate, 3 is the buffer bottom plate, 4 is the rotating seat, 5 is the sliding column, 6 is the hanging plate, 7 is the connecting sliding sleeve, 8 is the bidirectional threaded rod, 9 is the nut, 10 is the hinge seat, 11 is the support column, 12 is the adjustment handle, 13 is the buffer shaft, 14 is the buffer sliding sleeve, 15 is the sliding shaft, 16 is the driving plate, 17 is the mortgage seat, 18 is the high-pressure spring, 19 is the driving wheel. Specific implementation mode

[0021] The technical solutions in the present invention will be further described below in conjunction with the accompanying drawings and embodiments. Refer to Figures 1-4 , a gooseneck detachable low-bed semi-trailer frame structure, including

[0022] a frame body 1, characterized in that a vertical adjustment plate 2 is fixedly connected to one side of the frame body 1, and a hanging plate adjustment mechanism is arranged on the vertical adjustment plate 2;

[0023] a buffer bottom plate 3 is arranged at the bottom of the frame body 1, and two pairs of rotating seats 4 are arranged at the bottom of the buffer bottom plate 3, and a buffer mechanism is arranged at the bottom of the buffer bottom plate 3;

[0024] The hanging plate adjustment mechanism includes a through groove, a sliding column 5, a hanging plate 6 and a connecting sliding sleeve 7. The through groove is opened on the vertical adjustment plate 2, the sliding column 5 is fixedly connected to the vertical adjustment plate 2, the connecting sliding sleeve 7 is slidably connected to the sliding column 5, the hanging plate 6 is slidably connected in the through groove, the hanging plate 6 is fixedly connected to the connecting sliding sleeve 7, a pair of rotating plates are fixedly connected to the frame body 1 at the position corresponding to the vertical adjustment plate 2, a bidirectional threaded rod 8 is arranged between the two rotating plates, nuts 9 are threadedly connected to both sides of the bidirectional threaded rod 8, hinge seats 10 are arranged on the two nuts 9, a support column 11 is hinged to the hinge seats 10, the support column 11 is rotatably connected to the corresponding side of the connecting sliding sleeve 7, and an adjustment handle 12 is rotatably connected to one of the two rotating plates. The rotating shaft of the adjustment handle 12 penetrates through the rotating plate and is fixedly connected to the bidirectional threaded rod 8 coaxially. When it is necessary to adjust the height of the hanging plate 6, the adjustment handle 12 can be manually rotated. When the adjustment handle 12 rotates, the bidirectional threaded rod 8 fixedly connected to it coaxially can rotate. When the bidirectional threaded rod 8 rotates, the two nuts 9 threadedly connected to it can approach or move away from each other. At this time, the hinge seat 10 will drive the support column 11 to move, so that the connecting sliding sleeve 7 moves on the sliding column 5, so that the height of the hanging plate 6 can be adjusted;

[0025] The buffer mechanism includes a buffer shaft 13, a buffer sliding sleeve 14, and a sliding shaft 15. The buffer shaft 13 is rotatably connected to the rotating seat 4. The buffer sliding sleeve 14 is rotatably connected to one end of the buffer shaft 13 away from the rotating seat 4. The sliding shaft 15 is slidably connected to two buffer sliding sleeves 14 on the corresponding side. A driving plate 16 is provided at the bottom of the buffer bottom plate 3. Two pairs of mortgage seats 17 are fixedly connected to the driving plate 16. The sliding shaft 15 is fixedly connected to two mortgage seats 17 on the corresponding side. Three pairs of driving wheels 19 are provided at the bottom of the driving plate 16. A high-pressure spring 18 is provided between the buffer sliding sleeve 14 and the mortgage seat 17 on the corresponding side. The high-pressure spring 18 abuts against the buffer sliding sleeve 14 and the mortgage seat 17 respectively. The buffer mechanism can buffer the whole device. When a large weight is borne on the vehicle frame main body 1, at this time, the buffer shaft 13 will rotate a certain angle around the rotating seat 4 as the axis, and two buffer sliding sleeves 14 on the corresponding side will move away from each other, and the high-pressure spring 18 will be compressed, which can prevent the gravity from directly acting on the driving wheels 19 when the vehicle frame main body 1 passes through a bumpy road section, thereby prolonging the service life of the vehicle frame main body 1.

[0026] The functional principle of the present utility model can be elaborated through the following operation methods:

[0027] When it is necessary to adjust the height of the hanging plate 6, the adjusting handle 12 can be manually rotated. When the adjusting handle 12 rotates, the bidirectional threaded rod 8 fixedly connected coaxially therewith will rotate. When the bidirectional threaded rod 8 rotates, the two nuts 9 threadedly connected thereto will move closer to or away from each other. At this time, the hinge seat 10 will drive the support column 11 to move, so that the connecting sliding sleeve 7 moves on the sliding column 5, thereby adjusting the height of the hanging plate 6;

[0028] The buffer mechanism can buffer the whole device. When a large weight is borne on the vehicle frame main body 1, at this time, the buffer shaft 13 will rotate a certain angle around the rotating seat 4 as the axis, and two buffer sliding sleeves 14 on the corresponding side will move away from each other, and the high-pressure spring 18 will be compressed, which can prevent the gravity from directly acting on the driving wheels 19 when the vehicle frame main body 1 passes through a bumpy road section, thereby prolonging the service life of the vehicle frame main body 1.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present utility model, and they should all be covered by the scope of the claims of the present utility model.

Claims

1. A low-bed semi-trailer frame structure with a detachable gooseneck, comprising a frame body (1), characterized in that: A vertical adjustment plate (2) is fixedly connected to one side of the frame body (1), and a hanging plate adjustment mechanism is provided on the vertical adjustment plate (2); A buffer bottom plate (3) is arranged at the bottom of the frame body (1), two pairs of rotating seats (4) are arranged at the bottom of the buffer bottom plate (3), and a buffer mechanism is arranged at the bottom of the buffer bottom plate (3).

2. The low-bed semi-trailer frame structure with detachable gooseneck according to claim 1 is characterized in that: The hanging plate adjustment mechanism comprises a through groove, a sliding column (5), a hanging plate (6) and a connecting sliding sleeve (7); the through groove is formed on the vertical adjustment plate (2); the sliding column (5) is fixedly connected to the vertical adjustment plate (2); the connecting sliding sleeve (7) is slidably connected to the sliding column (5); the hanging plate (6) is slidably connected in the through groove; and the hanging plate (6) is fixedly connected to the connecting sliding sleeve (7).

3. The low-bed semi-trailer frame structure with detachable gooseneck according to claim 2 is characterized in that: A pair of rotating plates are fixedly connected to the frame body (1) at positions corresponding to the vertical adjustment plates (2); a bidirectional threaded rod (8) is arranged between the two rotating plates; nuts (9) are threadedly connected to both sides of the bidirectional threaded rod (8); hinge seats (10) are arranged on the two nuts (9); a support column (11) is hingedly connected to the hinge seat (10); and the support column (11) is rotatably connected to a corresponding side of the connecting sleeve (7).

4. The low-bed semi-trailer frame structure with detachable gooseneck according to claim 3 is characterized in that: An adjusting handle (12) is rotatably connected to one of the two rotating plates, and a rotating shaft of the adjusting handle (12) passes through the rotating plate and is coaxially fixedly connected to the bidirectional threaded rod (8).

5. The low-bed semi-trailer frame structure with detachable gooseneck according to claim 1 is characterized in that: The buffer mechanism comprises a buffer shaft (13), a buffer sleeve (14) and a sliding shaft (15); the buffer shaft (13) is rotatably connected to the rotating seat (4); the buffer sleeve (14) is rotatably connected to one end of the buffer shaft (13) away from the rotating seat (4); and the sliding shaft (15) is slidably connected to two buffer sleeves (14) on the corresponding side.

6. The low-bed semi-trailer frame structure with detachable gooseneck according to claim 5, characterized in that: A driving plate (16) is arranged at the bottom of the buffer bottom plate (3), two pairs of mortgage seats (17) are fixedly connected to the driving plate (16), the sliding shaft (15) is fixedly connected to the two mortgage seats (17) on the corresponding side, and three pairs of driving wheels (19) are arranged at the bottom of the driving plate (16).

7. The low-bed semi-trailer frame structure with detachable gooseneck according to claim 6, characterized in that: A high-pressure spring (18) is arranged between the buffer sliding sleeve (14) and the mortgage seat (17) on the corresponding side, and the high-pressure spring (18) is respectively against the buffer sliding sleeve (14) and the mortgage seat (17).

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