Connecting structure between tractor head and trailer

Abstract

The utility model discloses a connecting structure between a tractor head and a trailer, which relates to the technical field of tractors and comprises a head and a trailer, two hooks are arranged on the head, a rotary support structure is arranged on one side of the trailer, and a hanging rod and a bidirectional fixing structure are arranged on the rotary support structure. The hook can be hooked in any area of the hanging rod, connection can be carried out only by guaranteeing that the hook is perpendicular to the hanging rod, connection of the machine head and the trailer can be completed by fixing the hook on the hanging rod through the bidirectional fixing structure, and the position of the hook on the hanging rod can be corrected through the bidirectional fixing structure. The connecting steps are simple and rapid, the connecting efficiency is improved, the hanging rod is rotated by rotating the supporting structure, the hanging rod is rapidly adjusted to be perpendicular to the hooks, the two hooks are in central symmetry with respect to the hanging rod in an auxiliary mode, and the middle of the head and the tail can be rapidly adjusted to be aligned with the middle of the trailer.

Description

TECHNICAL FIELD

[0001] The utility model relates to tractor technical field, concretely relates to a connecting structure between tractor head and trailer. BACKGROUND

[0002] Tractor is used for traction and drive operation machine to complete various mobile operation, also can do fixed operation power, generally used for agricultural and industrial purposes, tractor head is generally connected with trailer for use.

[0003] The tractor head is connected with the trailer, generally is connected through the hook and the corresponding hook structure on the trailer, then is limited the hook to separate through the buckle structure on the hook, can be used as tractor transport unit after connection, but the tractor head and the trailer are connected through this connection mode, since the hook structure is generally cylindrical component matched with the shape of the hook, and the component is short, so that the tractor head needs to be adjusted several times to ensure that the hook is accurately connected with the hook structure, but the operation needs to ensure that the hook is connected with the hook structure, and needs to be adjusted several times to align, the operation difficulty is higher, needs to spend more time to operate and leads to low connection efficiency. UTILITARIAN CONTENT

[0004] The utility model aims at providing a connecting structure between tractor head and trailer, solves the problem raised in the above background technology.

[0005] To solve the above technical problem, the utility model provides the following technical scheme:

[0006] A connecting structure between tractor head and trailer, including head and trailer, the head is provided with two hooks, and the hook can rotate on the head and fix its position after rotating, one side of the trailer is provided with rotating support structure, the rotating support structure is provided with hanging rod and bidirectional fixing structure, and the hanging rod is used for cooperating and connecting with two hooks, the bidirectional fixing structure is used for correcting the center symmetry of two hooks about the hanging rod, and fixing two hooks on the hanging rod.

[0007] As a preferred scheme of the utility model, the rotating support structure includes support bottom plate fixedly connected with one side of the trailer, the support bottom plate is rotatably connected with rotating seat, the rotating seat is symmetrically provided with two supports on the rotating seat, and the hanging rod is fixedly connected on the two supports, and the bidirectional fixing structure is arranged on the two supports.

[0008] As a preferred scheme of the utility model, the bottom of the support bottom plate is provided with wedge-shaped support fixedly connected with the trailer.

[0009] As a preferred scheme of the utility model, the bidirectional fixing structure comprises a bidirectional screw rod rotatably connected to the two supports, two correction seats are threadedly connected to the bidirectional screw rod, the two correction seats are slidably connected to the rotating seat, limiting assemblies for fixing the hooks to the hanging rods are arranged on the opposite sides of the two correction seats, and the hanging rods penetrate through the two correction seats.

[0010] As a preferred scheme of the utility model, the limiting assembly comprises a limiting seat arranged on one side of the correction seat, a groove is formed in the top of the limiting seat, a limiting plate is slidably connected in the groove, the top of the limiting seat and the limiting plate is matched with the bottom of the hook, the top height of the limiting seat is less than the bottom height of the hook, an adjusting screw rod is threadedly connected to the bottom of the limiting plate, and one end of the adjusting screw rod penetrates through the bottom of the groove to the outside of the limiting seat.

[0011] As a preferred scheme of the utility model, one end of the bidirectional screw rod penetrates through the corresponding support and is connected with a handle.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] In the utility model, the hook can be hooked on any area of the hanging rod, and only needs to be connected by ensuring that the hook is perpendicular to the hanging rod, the connection of the head and the trailer can be completed by fixing the hook on the hanging rod through the bidirectional fixing structure, the position of the hook on the hanging rod can be corrected through the bidirectional fixing structure, the connection steps are simple and fast, the connection efficiency is improved, the hanging rod is rotated through the rotating support structure, the hanging rod is quickly adjusted to be perpendicular to the hook, and the two hooks are symmetrically adjusted about the center of the hanging rod, so that the middle of the head tail can be quickly adjusted to be aligned with the middle part of the trailer. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical schemes in the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only exemplary, and for those skilled in the art, other implementation drawings can be obtained according to the provided drawings without creating labor.

[0015] Figure 1 A structure schematic view of a first perspective of the connecting structure between the tractor head and the trailer is provided for the utility model embodiment.

[0016] Figure 2 A structure schematic view of a second perspective of the connecting structure between the tractor head and the trailer is provided for the utility model embodiment.

[0017] Figure 3A partial structural diagram of a connection structure between a tractor head and a trailer is provided for an embodiment of the present utility model;

[0018] Figure 4 A schematic cross-sectional view of a portion of the structure of a connection structure between a tractor head and a trailer is provided for an embodiment of the present utility model;

[0019] Figure 5 Provided for the embodiment of the present utility model Figure 1 A schematic diagram of the structure of part A shown in FIG;

[0020] Figure 6 Provided for the embodiment of the present utility model Figure 2 An enlarged schematic diagram of the structure of part B is shown in FIG.

[0021] The numbers in the figure represent the following:

[0022] 1. Engine head; 2. Trailer; 3. Hook; 5. Rotating support structure; 6. Hanging rod; 7. Bidirectional fixing structure;

[0023] 501. Support base; 502. Rotating seat; 503. Support; 504. Wedge support; 701. Bidirectional screw; 702. Correction seat; 703. Limiting assembly; 704. Limiting seat; 705. Groove; 706. Limiting plate; 707. Adjusting screw; 708. Handle. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] like Figures 1 to 6 As shown, the utility model provides a connection structure between a tractor head and a trailer, including a head 1 and a trailer 2. Two hooks 3 are provided on the head 1, and the hooks 3 can rotate on the head 1 and fix their own positions after rotation. A rotation support structure 5 is provided on one side of the trailer 2. A hanging rod 6 and a two-way fixing structure 7 are provided on the rotation support structure 5. The hanging rod 6 is used to cooperate with the two hooks 3 for connection. The two-way fixing structure 7 is used to correct the symmetry of the two hooks 3 about the center of the hanging rod 6 and fix the two hooks 3 to the hanging rod 6.

[0026] In actual application, the head 1 is first roughly aligned with the trailer 2, that is, the two hooks 3 are roughly symmetric about the center of the hanging rod 6, and the two hooks 3 are perpendicular to the hanging rod 6, then the head 1 moves towards the trailer 2 until the hooks 3 contact the hanging rod 6, and the height of the hooks 3 is adjusted so that the hooks 3 are below the hanging rod 6 when close to the hanging rod 6, then the head 1 adjusts its position and corrects the positions of the two hooks 3 through the bidirectional fixing structure 7, so that the two hooks 3 are symmetric about the center of the hanging rod 6 after the head 1 adjusts the position, that is, the side of the head 1 and the trailer 2 is aligned, the rotating support structure 5 is rotated and the position of the hanging rod 6 is adjusted, so that the hooks 3 are perpendicular to the hanging rod 6, then the height of the hooks 3 is adjusted to be hooked on the hanging rod 6, and finally the hooks 3 are fixed on the hanging rod 6 through the bidirectional fixing structure 7, at this time, the connection between the head 1 and the trailer 2 is completed, and in the whole process, the hooks 3 do not need to be completely adjusted to the accurate position and aligned position on the trailer 2, but only need to control the side of the head 1 and the trailer 2 to be aligned, so that the steps are simplified, the connection efficiency is improved, and the efficiency of alignment is improved through the bidirectional fixing structure 7 when the head 1 and the trailer 2 are connected, so that the trailer 2 and the head 1 are aligned to facilitate subsequent driving operation.

[0027] The rotating support structure 5 can make the head 1 rotate relative to the trailer 2 after the head 1 is connected to the trailer 2.

[0028] In the embodiment, the head 1 and the trailer 2 are both prior art, and the hook 3 is a prior structure on the head 1 of the existing tractor, which includes a connecting arm and a hook 3 body, and can rotate up and down and adjust the position on the head 1, which is prior art and will not be described in detail.

[0029] The rotating support structure 5 includes a support bottom plate 501 fixedly connected to one side of the trailer 2, a rotating seat 502 rotatably connected to the support bottom plate 501, two supports 503 symmetrically arranged on the rotating seat 502, and a hanging rod 6 fixedly connected to the two supports 503, and a bidirectional fixing structure 7 arranged on the two supports 503.

[0030] The position of the hanging rod 6 is adjusted by rotating the rotating seat 502 to drive the two supports 503 to rotate.

[0031] The bottom of the support bottom plate 501 is provided with a wedge-shaped support 504 fixedly connected to the trailer 2.

[0032] The wedge-shaped support 504 improves the stability of the support bottom plate 501.

[0033] The bidirectional fixing structure 7 comprises a bidirectional screw rod 701 rotatably connected to the two supports 503, two correction seats 702 threadedly connected to the bidirectional screw rod 701, and the two correction seats 702 are slidably connected to the rotating seat 502, and the opposite sides of the two correction seats 702 are provided with limiting assemblies 703 for fixing the hooks 3 to the hanging rods 6, and the hanging rods 6 penetrate through the two correction seats 702.

[0034] The two correction seats 702 are driven to move towards or away from each other by rotating the bidirectional screw rod 701, when the two correction seats 702 move towards each other to abut one of the correction seats 702 with one of the hooks 3, the head 1 can adjust its position according to the distance between the other hook 3 and the other correction seat 702, so that the two correction seats 702 abut the two hooks 3 respectively, at this time, the positions of the head 1 and the trailer 2 are aligned, which is convenient for subsequent driving operation, and finally the hooks 3 are fixed to the hanging rods 6 through the limiting assemblies 703, so as to ensure the stability of the connection between the head 1 and the trailer 2.

[0035] The correction seat 702 is slidably connected to the rotating seat 502, which improves the stability of the correction seat 702 during use.

[0036] The limiting assembly 703 comprises a limiting seat 704 arranged on one side of the correction seat 702, a groove 705 is formed in the top of the limiting seat 704, a limiting plate 706 is slidably connected in the groove 705, the top of the limiting seat 704 and the limiting plate 706 are matched with the bottom of the hook 3, the height of the top of the limiting seat 704 is less than the height of the bottom of the hook 3, and an adjusting screw rod 707 is threadedly connected to the bottom of the limiting plate 706, and one end of the adjusting screw rod 707 penetrates downward through the bottom of the groove 705 to the outside of the limiting seat 704.

[0037] When the correction seat 702 gradually approaches the corresponding hook 3, the limiting seat 704 and the limiting plate 706 pass from below the hook 3 until the correction seat 702 abuts one side of the hook 3, then the limiting plate 706 is driven to move upward from the groove 705 by rotating the adjusting screw rod 707, so that the hook 3 is located between the limiting plate 706 and the correction seat 702, and the hook 3 is hooked on the hanging rod 6, and the top of the limiting plate 706 and the limiting seat 704 is matched with the bottom surface of the hook 3, the bottom surface of the hook 3 is arc-shaped, so that when the hook 3 moves towards the trailer 2, it will interfere with the top of the arc surface in the limiting seat 704, thereby limiting the hook 3 to a fixed position on the hanging rod 6, that is, fixing the hook 3 on the hanging rod 6.

[0038] Further, the height difference of the position of the top of the limiting seat 704 and the hook 3 when the hook 3 is hooked on the hanging rod 6 should be as small as possible, for example, within 1 cm, so as to ensure that the hook 3 can interfere with the limiting seat 704 when moving, and to ensure that the height of the top of the limiting plate 706 is greater than the height of the bottom of the hook 3 after moving upward.

[0039] One end of the bidirectional screw 701 penetrates through the corresponding support 503 and is connected with a handle 708.

[0040] The hand-held handle 708 rotates the bidirectional screw 701, so as to facilitate adjustment of the positions of the two correction seats 702.

[0041] The above embodiments are only exemplary embodiments of the present application and are not used to limit the present application, and the protection scope of the present application is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements to the present application within the spirit and protection scope of the present application, and such modifications or equivalent replacements are also regarded as falling within the protection scope of the present application.

Claims

1. A connection structure between a tractor head and a trailer, comprising a head (1) and a trailer (2), characterized in that: Two hooks (3) are provided on the machine head (1), and the hooks (3) can rotate on the machine head (1) and fix their own positions after rotation. A rotation support structure (5) is provided on one side of the trailer (2). A hanging rod (6) and a bidirectional fixing structure (7) are provided on the rotation support structure (5). The hanging rod (6) is used to cooperate with the two hooks (3). The bidirectional fixing structure (7) is used to correct the symmetry of the two hooks (3) about the center of the hanging rod (6) and fix the two hooks (3) to the hanging rod (6).

2. The connection structure between a tractor head and a trailer according to claim 1, characterized in that: The rotating support structure (5) comprises a supporting base plate (501) fixedly connected to one side of the trailer (2); a rotating seat (502) is rotatably connected to the supporting base plate (501); two supports (503) are symmetrically arranged on the rotating seat (502); the hanging rod (6) is fixedly connected to the two supports (503); and the bidirectional fixing structure (7) is arranged on the two supports (503).

3. The connection structure between a tractor head and a trailer according to claim 2, characterized in that: The bottom of the supporting base plate (501) is provided with a wedge-shaped support (504) fixedly connected to the trailer (2).

4. The connection structure between a tractor head and a trailer according to claim 2, characterized in that: The bidirectional fixing structure (7) includes a bidirectional screw (701) rotatably connected to two supports (503), two correction seats (702) are threadedly connected to the bidirectional screw (701), and the two correction seats (702) are both slidably connected to the rotating seat (502), and the two correction seats (702) are each provided with a limiting component (703) for fixing the hook (3) to the hanging rod (6) on the opposite side of the two correction seats (702), and the hanging rod (6) passes through the two correction seats (702).

5. The connection structure between a tractor head and a trailer according to claim 4, characterized in that: The limiting assembly (703) includes a limiting seat (704) arranged on one side of the correction seat (702), a groove (705) is provided on the top of the limiting seat (704), a limiting plate (706) is slidably connected in the groove (705), and the tops of the limiting seat (704) and the limiting plate (706) are both adapted to the bottom of the hook (3), the top height of the limiting seat (704) is less than the bottom height of the hook (3), the bottom of the limiting plate (706) is threadedly connected to an adjusting screw (707), and one end of the adjusting screw (707) passes downward through the bottom of the groove (705) to the outside of the limiting seat (704).

6. The connection structure between a tractor head and a trailer according to claim 4, characterized in that: One end of the bidirectional screw (701) passes through the corresponding support (503) and is connected to a handle (708).

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