Hydraulic supporting device of semitrailer

Abstract

The utility model relates to the technical field of semitrailer equipment, in particular to a hydraulic supporting device of a semitrailer. According to the technical scheme, the device comprises two sets of assembling bases, supporting legs are arranged on the sides, close to each other, of the two sets of assembling bases, a height adjusting air cylinder is arranged between the two sets of supporting legs, a base is arranged below one set of assembling bases, and two sets of angle adjusting air cylinders are arranged between a first hinge base and a second hinge base; and an angle detection sensor is arranged on the second hinge seat. The height and the angle of the device can be accurately adjusted through mutual matching of the height adjusting air cylinder and the angle adjusting air cylinder, the requirements of different terrains and the heights and the angles of the semitrailers can be met, and the stability of the semitrailers during parking is guaranteed; by arranging an angle detection sensor and a displacement sensor, the lifting height and angle of the height adjusting air cylinder, the angle adjusting air cylinder and the base can be fed back in real time, and the operation accuracy and safety are improved.

Description

Technical Field

[0001] This utility model relates to the field of semi-trailer equipment technology, and in particular to a hydraulic support device for semi-trailers. Background Technology

[0002] Hydraulic support devices play a crucial role in the use of semi-trailers, providing stable support for the semi-trailer body when it needs to detach from the tractor unit for loading, unloading, maintenance, or other tasks. Currently, most commercially available semi-trailer hydraulic support devices cannot precisely adjust height and support angle, making it difficult to accurately adapt to different terrains and semi-trailer height requirements. This can lead to semi-trailers tilting when parked, affecting cargo loading and unloading and vehicle stability. Therefore, we propose a new type of semi-trailer hydraulic support device. Utility Model Content

[0003] The purpose of this invention is to address the problems existing in the background technology by proposing a hydraulic support device for semi-trailers.

[0004] The technical solution of this utility model is as follows: A hydraulic support device for a semi-trailer includes two sets of assembly bases. Each of the two sets of assembly bases is provided with a support leg on one side close to each other. A height adjustment cylinder is provided between the two sets of support legs. A base is provided below one set of assembly bases. A hinge seat one is provided on one side of the support leg of one set of assembly bases. A hinge seat two is provided on one side of the base. Two sets of angle adjustment cylinders are provided between the hinge seat one and the hinge seat two. An angle detection sensor is provided on the hinge seat two.

[0005] Preferably, one set of mounting ends of the assembly base is installed corresponding to the support points of the semi-trailer, and the other set of mounting ends of the assembly base is installed corresponding to the upper side of the base.

[0006] Preferably, the mounting ends of the two sets of support legs are respectively installed corresponding to the connecting ends of the assembly base, and the two sets of support legs are arranged symmetrically.

[0007] Preferably, both sets of support legs have mounting holes at one end close to each other, the mounting end of the height adjustment cylinder is installed corresponding to the mounting hole on the lower set of support legs, and the output end of the height adjustment cylinder is installed corresponding to the mounting hole on the upper set of support legs.

[0008] Preferably, a friction plate is provided on the lower side of the base, and anti-slip texture is provided on the lower part of the friction plate.

[0009] Preferably, the mounting end of the first hinge seat is installed corresponding to one side of the upper set of support legs, and the mounting end of the second hinge seat is installed corresponding to one side of the base.

[0010] Preferably, the mounting end of each set of angle adjusting cylinders is installed corresponding to the connecting end of the second hinge seat, and the output end of each set of angle adjusting cylinders is installed corresponding to the connecting end of the first hinge seat.

[0011] Preferably, the hinge seat 2 has a mounting groove, and the mounting end of the angle detection sensor is installed corresponding to the inner wall of the mounting groove.

[0012] Preferably, displacement sensors are provided on both the height adjusting cylinder and the two sets of angle adjusting cylinders, and the height adjusting cylinder and the angle adjusting cylinder are arranged at an angle.

[0013] Compared with the prior art, the present invention has the following beneficial technical effects:

[0014] This utility model has a simple overall structure. The height and angle of the device can be precisely adjusted by the cooperation of the height adjustment cylinder and the angle adjustment cylinder. It can adapt to different terrains and the height and angle requirements of semi-trailers, and ensure the stability of the semi-trailer when parked. The setting of angle detection sensor and displacement sensor can provide real-time feedback on the lifting height and angle of the height adjustment cylinder, angle adjustment cylinder and base, which improves the accuracy and safety of operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure from another perspective of this utility model;

[0017] Figure 3 This is a side view of the present invention.

[0018] Reference numerals in the attached drawings: 1. Assembly base; 2. Support leg; 3. Height adjustment cylinder; 4. Base; 5. Hinge seat one; 6. Hinge seat two; 7. Angle adjustment cylinder; 8. Angle detection sensor; 9. Friction plate. Detailed Implementation

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. Example

[0020] like Figure 1-3As shown, this utility model proposes a hydraulic support device for a semi-trailer, comprising two sets of assembly bases 1. A base 4 is disposed below one set of assembly bases 1. The mounting end of one set of assembly bases 1 is installed corresponding to the support point of the semi-trailer and is fixedly connected to the support point. The mounting end of the other set of assembly bases 1 is installed corresponding to one side of the upper part of the base 4 and is fixedly connected to one side of the base 4. A friction plate 9 is disposed on one side of the lower part of the base 4. The mounting end of the friction plate 9 is fixedly connected to the base 4. Anti-slip textures are provided on the lower part of the friction plate 9. The friction plate 9 makes the device more stable when in contact with the ground, thereby allowing the semi-trailer to be parked stably. The two sets of assembly bases 1 are mutually supportive. Support legs 2 are provided on both sides. The mounting ends of the two sets of support legs 2 are respectively installed corresponding to the connecting ends of the assembly base 1. The mounting ends of the support legs 2 are rotatably connected to the connecting ends of the assembly base 1. The two sets of support legs 2 are arranged symmetrically. The rotatable arrangement of the support legs 2 and the assembly base 1 allows the device to provide stable support for the semi-trailer at different angles. A height adjustment cylinder 3 is provided between the two sets of support legs 2. The two sets of support legs 2 have mounting holes at their closest ends. The mounting end of the height adjustment cylinder 3 is installed corresponding to the mounting hole on the lower set of support legs 2. The mounting end of the height adjustment cylinder 3 is fixedly connected to the lower set of support legs 2 through the mounting hole. The output end of the height adjustment cylinder 3 is installed corresponding to the mounting hole on the upper set of support legs 2. The height-adjusting cylinder 3 is fixedly connected to the upper set of support legs 2 through the mounting hole. The height-adjusting cylinder 3 allows for height adjustment of the device, adapting to different terrains and semi-trailer height requirements. A hinge seat 5 is provided on one side of the upper set of support legs 2, with its mounting end corresponding to one side of the upper set of support legs 2. The mounting end of hinge seat 5 is fixedly connected to one side of the support leg 2. A second hinge seat 6 is provided on one side of the base 4, with its mounting end corresponding to one side of the base 4. The mounting end of hinge seat 6 is fixedly connected to one side of the base 4. Two sets of angle-adjusting cylinders 7 are provided between hinge seat 5 and hinge seat 6, with the mounting end of each set of angle-adjusting cylinders 7 corresponding to the connecting end of hinge seat 6. The mounting end of the angle adjusting cylinder 7 is rotatably connected to the connecting end of the second hinge seat 6. The output end of each set of angle adjusting cylinders 7 is correspondingly installed with the connecting end of the first hinge seat 5. The angle adjusting cylinder 7 can be adjusted to change the angle of the base 4 via the second hinge seat 6, thus adapting to different terrains and the angle requirements of the semi-trailer. Displacement sensors are installed on the height adjusting cylinder 3 and the two sets of angle adjusting cylinders 7. The displacement sensors allow the operator to precisely control the extension length of the height adjusting cylinder 3 and the angle adjusting cylinder 7, thereby enabling the device to better stabilize and support the semi-trailer. The height adjusting cylinder 3 and the angle adjusting cylinder 7 are set at an angle.The height adjustment cylinder 3 and angle adjustment cylinder 7 are arranged at an angle, cooperating with the hinge seat 6 and base 4 to form a triangular shape when the device is in the supported state. This provides greater stability when supporting the semi-trailer. An angle detection sensor 8 is installed on the hinge seat 6, which has a mounting groove. The mounting end of the angle detection sensor 8 is installed corresponding to the inner wall of the mounting groove and is fixedly connected to the hinge seat 6 through the mounting groove. The height adjustment cylinder 3, base 4, angle detection sensor 8, and displacement sensor are all electrically connected to the central control support on the semi-trailer. The angle detection sensor 8 allows the hinge seat 6 to detect the angle of the base 4, improving the accuracy and safety of the device when supporting the semi-trailer.

[0021] In this embodiment, when the semi-trailer needs support while parked, the operator operates the device through the support control on the semi-trailer. First, the operator powers on the height adjustment cylinder 3 and the angle adjustment cylinder 7. The height adjustment cylinder 3, through the mounting base 1, causes the base 4 to extend to the ground. At this time, the angle adjustment cylinder 7 follows the height adjustment cylinder 3, causing the friction plate 9 under the base 4 to contact the ground, thus adjusting the height of the device. Then, the operator continues to operate the angle adjustment cylinder 7. The angle adjustment cylinder 7 pushes the base 4 through the hinge seat 6, adjusting the angle of the base 4. This causes the base 4 to drive the friction plate 9 into stable contact with the ground, enabling the device to provide stable support for the semi-trailer when parked.

[0022] The above-described specific embodiments are merely preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above-described specific embodiments.

Claims

1. A hydraulic support device for a semi-trailer comprising two sets of assembly pedestals (1), characterized in that: Two groups of the assembly base (1) are provided with support legs (2) on the side close to each other, height adjusting cylinders (3) are arranged between the two groups of support legs (2), a base (4) is arranged below one group of the assembly base (1), a hinge seat one (5) is arranged on one side of one group of the support legs (2), a hinge seat two (6) is arranged on one side of the base (4), two groups of angle adjusting cylinders (7) are arranged between the hinge seat one (5) and the hinge seat two (6), and an angle detection sensor (8) is arranged on the hinge seat two (6).

2. A hydraulic suspension device for a semitrailer according to claim 1, characterized in that The mounting end of one group of the assembly base (1) is installed in correspondence with the support point of the semitrailer, and the mounting end of the other group of the assembly base (1) is installed in correspondence with the side above the base (4).

3. A hydraulic suspension device for a semitrailer according to claim 1, characterized in that The mounting end of each group of the support legs (2) is installed in correspondence with the connecting end of the assembly base (1), and the two groups of support legs (2) are arranged in a symmetrical manner.

4. A hydraulic suspension device for a semitrailer according to claim 1, characterized in that The mounting end of the height adjusting cylinder (3) is installed in correspondence with the assembly hole on the group of support legs (2) below, and the output end of the height adjusting cylinder (3) is installed in correspondence with the assembly hole on the group of support legs (2) above.

5. A hydraulic suspension device for a semitrailer according to claim 1, characterized in that The lower side of the base (4) is provided with a friction plate (9), and the lower side of the friction plate (9) is provided with anti-skid lines.

6. A hydraulic suspension device for a semitrailer according to claim 1, characterized in that The mounting end of the hinge seat one (5) is installed in correspondence with one side of the group of support legs (2) above, and the mounting end of the hinge seat two (6) is installed in correspondence with one side of the base (4).

7. A hydraulic suspension device for a semitrailer according to claim 1, characterized in that The mounting end of each group of the angle adjusting cylinder (7) is installed in correspondence with the connecting end of the hinge seat two (6), and the output end of each group of the angle adjusting cylinder (7) is installed in correspondence with the connecting end of the hinge seat one (5).

8. A hydraulic suspension device for a semitrailer according to claim 1, characterized in that The hinge seat two (6) is provided with a mounting groove, and the mounting end of the angle detection sensor (8) is installed in correspondence with the inner wall of the mounting groove.

9. A hydraulic suspension device for a semitrailer according to claim 1, characterized in that The height adjusting cylinder (3) and the two groups of angle adjusting cylinders (7) are provided with displacement sensors, and the height adjusting cylinder (3) and the angle adjusting cylinder (7) are arranged in an included angle.

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