Semitrailer connecting device

Abstract

The utility model relates to the technical field of connecting devices, in particular to a semitrailer connecting device. According to the technical scheme, the connecting device mainly aims at solving the problems that an existing connecting device is high in complexity and working intensity in the connecting process and inconvenient to conduct connecting operation, and comprises a bottom plate fixedly connected to a semitrailer frame, and a first connecting piece is installed on the bottom plate; the second connecting piece is fixedly connected to the tractor frame; the connecting assembly is used for connecting the first connecting piece and the second connecting piece; and the buffering mechanism is arranged in the first connecting piece and the second connecting piece and is used for buffering the impact force during driving. According to the utility model, the connection mode is simple, the connection is convenient, the connection is stable and reliable, the operation difficulty is reduced, and the connection efficiency and safety are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of connecting devices, in particular to a connecting device for a semitrailer. Background Art

[0002] The connecting device of a semitrailer connects the structure between the semitrailer and the trailer (tractor). The existing semitrailer connecting device can realize the quick connection between the connecting column and the connecting plate by setting a blocking mechanism, a locking cylinder, and a locking pin, and by clamping the connecting column into the connecting groove on the connecting plate. Since the height position of the connecting column and the connecting plate is fixed, how to move the connecting column to the connecting groove is a difficult problem, which increases the complexity and work intensity of the connection process and is not convenient for the connection operation. In view of this, the utility model proposes a semitrailer connecting device. Utility Model Content

[0003] The utility model aims to propose a semi-trailer connection device in view of the problems that the existing connection devices in the background technology are complicated and have high work intensity during the connection process, and are inconvenient to carry out the connection operation.

[0004] The technical solution of the utility model is as follows: a semi-trailer connection device comprises a base plate fixedly connected to a semi-trailer frame, a first connection piece is installed on the base plate; a second connection piece is fixedly connected to a tractor frame; further comprising a connection assembly for connecting the first connection piece and the second connection piece; and a buffer mechanism installed in the first connection piece and the second connection piece for buffering impact force during driving.

[0005] Optionally, the first connecting member includes a vertical plate, a horizontal plate, a first reinforcing rib, and a fixed block. The vertical plate and the horizontal plate are integrally formed to present a T-shaped structure. The bottom of the vertical plate is fixedly connected to the top of the base plate, the horizontal plate is fixedly connected to one side of the vertical plate, and the horizontal plate is arranged parallel to the base plate. The first reinforcing rib is fixedly connected between the vertical plate and the base plate. Two groups of fixed blocks are symmetrically arranged on both sides of the horizontal plate and fixedly connected thereto, and the fixed block is fixedly connected to the top of the base plate.

[0006] Optionally, the second connecting member includes a mounting plate, a connecting block, and second connecting ribs, the mounting plate is fixedly connected to the tractor frame, a plurality of groups of second connecting ribs are arranged between the mounting plate and the connecting block, and the connecting block is U-shaped.

[0007] Optionally, the connecting assembly includes a threaded sleeve, a sliding sleeve, and a half-thread screw. Two groups of the threaded sleeves are installed on the side of the connecting block close to the base plate, and the sliding sleeve is installed on the side of the connecting block away from the base plate. The half-thread screw is slidably connected in the sliding sleeve, and one end of the half-thread screw is threadedly connected to the threaded sleeve.

[0008] Optionally, the connecting assembly also includes a sliding groove opened on the transverse plate and corresponding to the half-thread screw.

[0009] Optionally, the buffer mechanism includes a first push plate, a first positioning block, a first spring, and a first mounting block. The first push plate is fixedly connected to the side of the horizontal plate away from the vertical plate, the first positioning block is fixedly connected to the side of the first push plate away from the horizontal plate, the first spring is sleeved and installed on the outer ring of the first positioning block, the first spring passes through the connecting block, the first mounting block is installed on the side of the connecting block away from the horizontal plate and at a position corresponding to the first spring, and one end of the first spring is fixedly connected to the first mounting block.

[0010] Optionally, the buffer mechanism also includes a second push plate, a second positioning block, a second spring, and a second mounting block. The second push plate is fixedly connected to the side of the connecting block close to the vertical plate, the second positioning block is fixedly connected to the side of the second push plate away from the connecting block, the second spring is sleeved and installed on the outer ring of the second positioning block, the second spring passes through the vertical plate, the second mounting block is installed on the side of the vertical plate away from the horizontal plate at a position corresponding to the second spring, and one end of the second spring is fixedly connected to the second mounting block.

[0011] Compared with the prior art, the utility model has the following beneficial technical effects:

[0012] The utility model provides a vertical plate and a connecting block, and when the semi-trailer and the tractor are close to each other, the horizontal plate can be directly moved into the connecting block, so that the horizontal plate and the connecting block can be connected conveniently through the connecting assembly, and the connecting method is simple and the working efficiency is high;

[0013] Furthermore, the first spring and the second spring provided in the buffer mechanism can effectively alleviate the impact of the impact force on the connecting assembly during the movement of the semi-trailer, thereby ensuring the stable connection of the connecting device and a certain service life;

[0014] In summary, the connection method of the utility model is simple and easy to connect. At the same time, the connection is stable and reliable, which reduces the difficulty of operation and improves the efficiency and safety of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a perspective view of a semi-trailer connection device;

[0016] Figure 2 yes Figure 1 A schematic cross-sectional structure diagram of ;

[0017] Figure 3 yes Figure 1 Schematic diagram of the disassembled structure.

[0018] Reference numerals:

[0019] 1. Bottom plate;

[0020] 2. first connecting member; 21. vertical plate; 22. horizontal plate; 23. first reinforcing rib; 24. fixing block;

[0021] 3. Second connecting member; 31. Mounting plate; 32. Connecting block; 33. Second connecting rib;

[0022] 4. Connecting assembly; 41. Threaded sleeve; 42. Sliding sleeve; 43. Half-thread screw; 44. Sliding groove;

[0023] 5. Buffer mechanism; 51. First push plate; 52. First positioning block; 53. First spring; 54. First mounting block; 55. Second push plate; 56. Second positioning block; 57. Second spring; 58. Second mounting block. DETAILED DESCRIPTION

[0024] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0025] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0026] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0027] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Example

[0030] like Figure 1 and Figure 2 As shown, a semi-trailer connection device proposed by the utility model comprises a bottom plate 1 fixedly connected to the frame of the semi-trailer, a first connecting member 2 is installed on the bottom plate 1, the first connecting member 2 comprises a vertical plate 21, a horizontal plate 22, a first reinforcing rib 23, and a fixing block 24, the vertical plate 21 and the horizontal plate 22 are integrally formed, presenting a T-shaped structure, so that the structure is more stable and not easy to deform. The bottom of the vertical plate 21 is fixedly connected to the top of the bottom plate 1, the horizontal plate 22 is fixedly connected to one side of the vertical plate 21, and the horizontal plate 22 is arranged parallel to the bottom plate 1. The first reinforcing rib 23 is fixedly connected between the vertical plate 21 and the bottom plate 1, and the first reinforcing rib 23 is used to fix the position of the vertical plate 21. Two groups of fixing blocks 24 are symmetrically arranged on both sides of the horizontal plate 22 and fixedly connected thereto, the fixing blocks 24 are fixedly connected to the top of the bottom plate 1, and the fixing blocks 24 are used to fix the position of the vertical plate 21, and the connecting block 32 slides in the two groups of fixing blocks 24 when connected.

[0031] Furthermore, the connection device further comprises a second connection member 3 fixedly connected to the tractor frame, the second connection member 3 comprises a mounting plate 31, a connection block 32, and a second connection rib 33, the mounting plate 31 is fixedly connected to the tractor frame, and can be connected by welding or fasteners. There are multiple groups of second connection ribs 33 between the mounting plate 31 and the connection block 32, and the second connection ribs 33 are used to fix the structure between the mounting plate 31 and the connection block 32. The connection block 32 is U-shaped, so that the connection block 32 can be moved to both sides of the cross plate 22 for connection.

[0032] For details, please refer to Figure 3The above-mentioned connection device also includes a connection assembly 4 for connecting the first connection member 2 and the second connection member 3. The connection assembly 4 includes a threaded sleeve 41, a sliding sleeve 42, and a half-thread screw 43. Two sets of threaded sleeves 41 are installed on the side of the connection block 32 close to the base plate 1, and the threaded sleeve 41 moves synchronously with the connection block 32. The sliding sleeve 42 is installed on the side of the connection block 32 away from the base plate 1, and the sliding sleeve 42 moves synchronously with the connection block 32. The half-thread screw 43 is slidably connected to the sliding sleeve 42, and one end of the half-thread screw 43 is threadedly connected to the threaded sleeve 41, so that the half-thread screw 43 passes through the sliding sleeve 42 and is threadedly connected to the threaded sleeve 41, so that the half-thread screw 43 is fixed on the connection block 32. The connection assembly 4 also includes a sliding groove 44 corresponding to the half-thread screw 43 on the cross plate 22, which is convenient for limiting the moving distance of the half-thread screw 43, thereby limiting the moving distance of the connection block 32, so that the connection is stable.

[0033] Furthermore, Figure 2 and Figure 3 As shown, the above-mentioned connecting device includes a buffer mechanism 5 installed in the first connecting member 2 and the second connecting member 3 to buffer the impact force during driving. The buffer mechanism 5 includes a first push plate 51, a first positioning block 52, a first spring 53, and a first mounting block 54. The first push plate 51 is fixedly connected to the side of the transverse plate 22 away from the vertical plate 21, and the position of the first push plate 51 is fixed. The first positioning block 52 is fixedly connected to the side of the first push plate 51 away from the transverse plate 22, and the position of the first positioning block 52 is also fixed. The first spring 53 is sleeved and installed on the outer ring of the first positioning block 52. The first spring 53 is used to release elastic force for buffering when the transverse plate 22 and the connecting block 32 move relative to each other. The first spring 53 penetrates the connecting block 32, and the first mounting block 54 is installed on the side of the connecting block 32 away from the horizontal plate 22 and at a position corresponding to the first spring 53. One end of the first spring 53 is fixedly connected to the first mounting block 54. The first mounting block 54 is used to install and fix the position of the first spring 53. At the same time, the first mounting block 54 moves synchronously with the connecting block 32, and drives the first spring 53 to deform and generate elastic force during movement. The buffer mechanism 5 also includes a second push plate 55, a second positioning block 56, a second spring 57, and a second mounting block 58. The second push plate 55 is fixedly connected to the side of the connecting block 32 close to the vertical plate 21, and the second positioning block 56 is fixedly connected to the side of the second push plate 55 away from the connecting block 32. The second push plate 55 and the second positioning block 56 move synchronously with the connecting block 32. The second spring 57 is sleeved and installed on the outer ring of the second positioning block 56. The second spring 57 penetrates the vertical plate 21. The second spring 57 is also used to release elastic force to buffer the impact force. The second mounting block 58 is installed on the side of the vertical plate 21 away from the horizontal plate 22 and at a position corresponding to the second spring 57. One end of the second spring 57 is fixedly connected to the second mounting block 58. The second mounting block 58 is used to install and fix the position of the second spring 57. At the same time, the position of the second mounting block 58 is fixed, and when the connecting block 32 moves, it drives the second spring 57 to deform and generate elastic force.

[0034] In this embodiment, the semi-trailer is moved so that the semi-trailer is close to the tractor, and the vertical plate 21 and the horizontal plate 22 are moved, and the horizontal plate 22 enters the connecting block 32. When the positions of the threaded sleeve 41 and the sliding sleeve 42 correspond to the sliding groove 44, the half-thread screw 43 is passed through the sliding sleeve 42 and the sliding groove 44, and then the half-thread screw 43 is threadedly connected to the threaded sleeve 41, and the connection between the first connecting member 2 and the second connecting member 3 is completed. The connection operation is simple and the work efficiency is improved. At the same time, in the process of the semi-trailer towing the tractor, when an unexpected emergency brake is encountered, the vertical plate 21 and the connecting block 32 are close to each other, and at the same time, multiple groups of first springs 53 and second springs 57 are squeezed, and the elastic force of the first spring 53 and the second spring 57 can effectively buffer the impact force, thereby ensuring the integrity of the connecting device and the reliability of the connection.

[0035] The above specific embodiment is only an optional embodiment of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above embodiment, those skilled in the art can make various alternative improvements and combinations to the above specific embodiment.

Claims

1. A semi-trailer connection device, characterized in that: include: A base plate (1) fixedly connected to a semi-trailer frame, wherein a first connecting member (2) is installed on the base plate (1); A second connecting member (3) fixedly connected to the frame of the tractor; Also includes: A connecting assembly (4) for connecting the first connecting member (2) and the second connecting member (3); A buffer mechanism (5) is installed in the first connecting member (2) and the second connecting member (3) to buffer the impact force during driving.

2. A semi-trailer connection device according to claim 1, characterized in that: The first connecting member (2) comprises a vertical plate (21), a horizontal plate (22), a first reinforcing rib (23), and a fixing block (24); the vertical plate (21) and the horizontal plate (22) are integrally formed and present a T-shaped structure; the bottom of the vertical plate (21) is fixedly connected to the top of the bottom plate (1); the horizontal plate (22) is fixedly connected to one side of the vertical plate (21); the horizontal plate (22) and the bottom plate (1) are arranged parallel to each other; the first reinforcing rib (23) is fixedly connected between the vertical plate (21) and the bottom plate (1); two groups of the fixing blocks (24) are symmetrically arranged on both sides of the horizontal plate (22) and fixedly connected thereto; and the fixing blocks (24) are fixedly connected to the top of the bottom plate (1).

3. A semi-trailer connection device according to claim 2, characterized in that: The second connecting member (3) comprises a mounting plate (31), a connecting block (32), and second connecting ribs (33); the mounting plate (31) is fixedly connected to a tractor frame; a plurality of groups of second connecting ribs (33) are arranged between the mounting plate (31) and the connecting block (32); and the connecting block (32) is U-shaped.

4. A semi-trailer connection device according to claim 3, characterized in that: The connection assembly (4) comprises a threaded sleeve (41), a sliding sleeve (42), and a half-thread screw (43); two groups of the threaded sleeves (41) are installed on a side of the connection block (32) close to the base plate (1); the sliding sleeve (42) is installed on a side of the connection block (32) away from the base plate (1); the half-thread screw (43) is slidably connected to the sliding sleeve (42); and one end of the half-thread screw (43) is threadedly connected to the threaded sleeve (41).

5. A semi-trailer connection device according to claim 4, characterized in that: The connecting assembly (4) further comprises a sliding groove (44) formed on the transverse plate (22) and corresponding to the half-thread screw (43).

6. A semi-trailer connection device according to claim 3, characterized in that: The buffer mechanism (5) comprises a first push plate (51), a first positioning block (52), a first spring (53), and a first mounting block (54); the first push plate (51) is fixedly connected to a side of the transverse plate (22) away from the vertical plate (21); the first positioning block (52) is fixedly connected to a side of the first push plate (51) away from the transverse plate (22); the first spring (53) is sleeved and mounted on an outer ring of the first positioning block (52); the first spring (53) passes through the connecting block (32); the first mounting block (54) is mounted on a side of the connecting block (32) away from the transverse plate (22) at a position corresponding to the first spring (53); and one end of the first spring (53) is fixedly connected to the first mounting block (54).

7. A semi-trailer connection device according to claim 6, characterized in that: The buffer mechanism (5) further comprises a second push plate (55), a second positioning block (56), a second spring (57), and a second mounting block (58); the second push plate (55) is fixedly connected to a side of the connecting block (32) close to the vertical plate (21); the second positioning block (56) is fixedly connected to a side of the second push plate (55) away from the connecting block (32); the second spring (57) is sleeved and mounted on an outer ring of the second positioning block (56); the second spring (57) penetrates the vertical plate (21); the second mounting block (58) is mounted on a side of the vertical plate (21) away from the horizontal plate (22) at a position corresponding to the second spring (57); and one end of the second spring (57) is fixedly connected to the second mounting block (58).

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