Adjustable trailer connecting piece

Abstract

The utility model relates to an adjustable trailer connecting piece. Belongs to the technical field of trailer connecting devices. An adjustable trailer connecting piece comprises a trailer arm used for being connected with a towed vehicle and a ball head piece used for being connected with a towed vehicle. The connecting seat comprises a bottom piece, a first vertical piece and a second vertical piece, the back of the bottom piece is fixedly connected with the end part of the trailer arm, and the first vertical piece and the second vertical piece are integrally connected with the bottom piece and are arranged on the two sides of the bottom piece; and a plurality of mounting holes which are vertically and linearly arranged are formed in the first vertical sheet and the second vertical sheet. According to the utility model, the connecting seat with the plurality of mounting holes is arranged between the ball head piece and the trailer arm, so that the height position of the ball head piece can be adjusted; the two ball cup bodies with different specifications and sizes are arranged on the front face and the back face of the ball cup body, so that the ball cup can be matched with ball caps with different specifications, and the product applicability is improved.

Description

Technical Field

[0001] The utility model relates to a trailer connecting piece, in particular to an adjustable trailer connecting piece, and belongs to the technical field of trailer connecting devices. Background Art

[0002] The normal driving of an unpowered vehicle, or the need to transfer a vehicle after a power system failure, often requires a trailer solution. In the prior art, a ball head connection device is usually used; a ball head is installed at the rear end of the trailer, and a ball head cover that can cooperate with the ball head is installed at the front end of the towed vehicle. This connection method ensures that there is a hard connection between the trailer and the towed vehicle, and the trailer and the towed vehicle can rotate flexibly, so that the combined structure of "trailer-towed vehicle" can travel normally on urban and rural roads and better adapt to various road conditions.

[0003] For example, the utility model patent with the authorization announcement number CN 220242910U discloses a vehicle towing rear trailer device, which includes: it includes a trailer slot device and a trailer hook device, the trailer slot device is composed of a trailer hook connecting column, a trailer arm and a ball head trailer, the trailer hook connecting column is provided with a first through-type circular hole, a positioning pin is provided in the first through-type circular hole, and the positioning pin is locked by a positioning clamp, the trailer hook device is composed of a frame connecting plate and a trailer hook sleeve, the trailer hook sleeve is provided with a trailer hook slot hole, the trailer hook sleeve is provided with a second through-type circular hole, and the first through-type circular hole of the trailer hook connecting column corresponds to the second through-type circular holes provided on both sides of the trailer hook sleeve. It can be seen that the patent is designed based on the ball head and the ball head cover.

[0004] However, the above trailer device has many parts and components, and the structure is relatively complex; and the height position of the ball head is difficult to adjust. When the ground clearance of the trailer and the towed vehicle is obviously inconsistent, it is difficult to use. Utility Model Content

[0005] The utility model aims to solve the above problems, thereby providing an adjustable trailer connector. The trailer connector of the utility model solves the above problems by providing a connecting seat with multiple mounting holes between the ball head and the trailer arm, so that the height position of the ball head can be adjusted.

[0006] The technical solution of the utility model to solve the above problems is as follows:

[0007] An adjustable trailer connector includes a trailer arm for connecting a towing vehicle and a ball head for connecting a towed vehicle; it also includes a vertically arranged connecting seat, the connecting seat includes a bottom plate with a back fixedly connected to the end of the trailer arm, a first vertical plate and a second vertical plate integrally connected to the bottom plate and arranged on both sides of the bottom plate; the first vertical plate and the second vertical plate are both provided with a plurality of mounting holes arranged in a vertical straight line.

[0008] As a preferred embodiment of the above technical solution, a gusset is provided between the trailer arm and the connecting seat.

[0009] As a preferred embodiment of the above technical solution, the ball head component includes a ball head seat, a ball head arranged on the ball head seat, and a first connecting plate and a second connecting plate arranged on both sides of the ball head seat; the first connecting plate and the second connecting plate are both provided with an upper pin hole and a lower pin hole.

[0010] As a preferred embodiment of the above technical solution, the mounting holes include at least three types of first height holes, second height holes and third height holes arranged equally from top to bottom; the spacing between holes of different heights is an integer multiple of L / 2; L is the distance between the upper pin hole and the lower pin hole.

[0011] As a preferred embodiment of the above technical solution, the mounting holes include holes of five heights; the spacing between adjacent height holes is L / 2.

[0012] As a preferred embodiment of the above technical solution, the first connecting piece / the second connecting piece is welded to the ball head seat.

[0013] As a preferred embodiment of the above technical solution, there are two ball heads, which are respectively arranged on the front and back surfaces of the ball head seat.

[0014] As a preferred embodiment of the above technical solution, the two ball heads have different sizes.

[0015] As a preferred embodiment of the above technical solution, the ball head is welded to the ball head seat.

[0016] As a preferred embodiment of the above technical solution, the ball head member is connected to the connecting seat via a latch.

[0017] In summary, the utility model has the following beneficial effects:

[0018] 1. The utility model provides a connecting seat with multiple mounting holes between the ball head and the trailer arm, so that the height position of the ball head can be adjusted;

[0019] 2. The utility model provides two ball head seats of different sizes on the front and back sides of the ball head seat, so that the utility model can be adapted to ball head covers of different sizes, thereby improving the applicability of the product;

[0020] 3. The utility model provides three adjustable height ranges by arranging five height holes on the connecting base, thereby further improving the applicability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model;

[0022] In the figure, 1-trailer arm, 2-connecting seat, 3-angle support piece, 4-ball head piece;

[0023] 21-first vertical sheet, 22-second vertical sheet, 23-bottom sheet;

[0024] 41-first connecting piece, 42-second connecting piece, 43-ball head seat, 44-ball head;

[0025] 2-1-mounting hole, 4-1-upper latch hole, 4-2-lower latch hole. DETAILED DESCRIPTION

[0026] The present invention is further explained below with reference to the accompanying drawings.

[0027] This specific implementation mode is only an explanation of the utility model, not a limitation of the utility model. Any changes made by those skilled in the art after reading the specification of the utility model will be protected by the patent law as long as they are within the scope of the claims.

[0028] like Figure 1 As shown, an adjustable trailer connection comprises

[0029] - trailer arm 1, for connecting to a towing vehicle;

[0030] - a ball head 4, used for connecting to the towed vehicle;

[0031] - A connecting seat 2, used to connect the trailer arm 1 and the ball head 4.

[0032] The trailer arm 1 is a straight arm structure arranged horizontally, and its cross section is a rectangular frame; the connecting seat 2 is a straight arm structure arranged vertically, and its cross section is U-shaped. The upper part of the connecting seat 2 is fixedly connected to one end of the trailer arm 1, and a gusset 3 is also arranged at the inner corner of the two.

[0033] Specifically, the connecting seat 2 includes a bottom plate 23 whose back is fixedly connected to the end of the trailer arm 1, a first vertical plate 21 and a second vertical plate 22 which are integrally connected to the bottom plate and arranged on both sides of the bottom plate 23. Both vertical plates are provided with a plurality of mounting holes 2-1 arranged in a vertical straight line.

[0034] The ball head 4 is connected to the connecting seat 2 via a latch.

[0035] The ball head component 4 includes a ball head seat 43 , a ball head 44 , a first connecting piece 41 and a second connecting piece 42 .

[0036] There are two ball heads 44, which are respectively welded to the front and back surfaces of the ball head seat, one facing upward and the other facing downward.

[0037] The first connecting piece 41 and the second connecting piece 42 are in a transverse T-shape and are respectively welded on both sides of the ball head seat 43, and are provided with an upper pin hole 4-1 and a lower pin hole 4-2; the distance between the upper pin hole 4-1 and the lower pin hole 4-2 is L.

[0038] In this embodiment, the mounting holes 2-1 include a first height hole, a second height hole, a third height hole, a fourth height hole, and a fifth height hole arranged at equal intervals from top to bottom, a total of five types. The spacing between adjacent height holes is L / 2.

[0039] like Figure 1 As shown, the mounting hole 2-1 of this embodiment has five heights, supporting a total of three mounting modes of the ball head 4. The first mounting mode: the upper pin hole 4-1 corresponds to the first height hole, and the lower pin hole 4-2 corresponds to the third height hole; the second mounting mode: the upper pin hole 4-1 corresponds to the second height hole, and the lower pin hole 4-2 corresponds to the fourth height hole; the third mounting mode: the upper pin hole 4-1 corresponds to the third height hole, and the lower pin hole 4-2 corresponds to the fifth height hole.

[0040] In addition, the two ball heads 44 on the ball head seat 43 have different sizes, usually one size different. When the ball head cover of the towed vehicle is not compatible with the ball head, the latch can be loosened, the ball head member 4 can be rotated 180°, and then installed in the original position.

Claims

1. An adjustable trailer connection, comprising a trailer arm (1) for connecting to a towing vehicle and a ball head (4) for connecting to a towed vehicle; characterized in that: It also includes a vertically arranged connection seat (2), the connection seat (2) including a bottom plate (23) whose back is fixedly connected to the end of the trailer arm (1), a first vertical plate (21) and a second vertical plate (22) which are integrally connected to the bottom plate and arranged on both sides of the bottom plate (23); the first vertical plate (21) and the second vertical plate (22) are both provided with a plurality of mounting holes (2-1) arranged in a vertical straight line; The ball head component (4) comprises a ball head seat (43), a ball head (44) arranged on the ball head seat, and a first connecting piece (41) and a second connecting piece (42) arranged on both sides of the ball head seat; the first connecting piece (41) and the second connecting piece (42) are both provided with an upper pin hole (4-1) and a lower pin hole (4-2).

2. An adjustable trailer connector according to claim 1, characterized in that: A gusset (3) is provided between the trailer arm (1) and the connecting seat (2).

3. The adjustable trailer connector according to claim 1, characterized in that: The mounting holes (2-1) include at least three types of first height holes, second height holes and third height holes which are arranged at equal intervals from top to bottom; the spacing between holes of different heights is an integer multiple of L / 2; and L is the distance between the upper pin hole (4-1) and the lower pin hole (4-2).

4. An adjustable trailer connector according to claim 3, characterized in that: The mounting holes (2-1) include holes of five heights; the spacing between adjacent height holes is L / 2.

5. The adjustable trailer connector according to claim 1, characterized in that: The first connecting piece (41) / the second connecting piece (42) is welded to the ball head seat (43).

6. The adjustable trailer connector according to claim 1, characterized in that: Two ball heads (44) are provided, and are respectively arranged on the front and back surfaces of the ball head seat (43).

7. An adjustable trailer connector according to claim 6, characterized in that: The two ball heads (44) have different sizes.

8. The adjustable trailer connector according to claim 1, characterized in that: The ball head (44) is welded to the ball head seat (43).

9. The adjustable trailer connector according to claim 1, characterized in that: The ball head member (4) is connected to the connecting seat (2) via a latch.

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