Rotary structure of trailer ball

Abstract

The utility model belongs to the technical field of trailer balls, and particularly relates to a trailer ball rotating structure which comprises an L-shaped arm body, a pin shaft arranged on the inner side of the L-shaped arm body, an adjusting hole formed in the inner wall of one side of the L-shaped arm body, a support arranged on one side of the L-shaped arm body, a limiting bolt arranged on the outer side of the support, an R-shaped pin arranged at one end of the limiting bolt and a limiting hole formed in one end of the L-shaped arm body. A limiting pin is arranged on the outer side, close to the edge, of the support, an auxiliary R-shaped pin is arranged at one end of the limiting pin, and a supporting block is arranged at one end of the support. Through the arrangement of the limiting hole, the limiting pin, the supporting block and the connecting column, when the L-shaped arm main body is used, after the limiting pin is pulled out, the angle of the supporting block can be adjusted by utilizing the matching of the limiting hole and the connecting column, so that the ball head main body can rotate at any angle according to the axis and is adjusted to a required orthogonal angle; in this way, not only is the use convenience of the L-shaped arm body improved, but also the situation that parts are lost can be prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to trailer ball technical field, concretely is a kind of rotation structure of trailer ball. BACKGROUND

[0002] In the field of transportation and related, the connecting device between trailer and towing vehicle is crucial, in the traditional trailer connecting mode, trailer ball as a commonly used connecting component, it faces many challenges in actual use process, early trailer ball structure is relatively simple, usually fixed and not rotatable form, this fixed structure makes the angle adjustment between towing vehicle and trailer in the steering process extremely limited, prone to inflexible steering, increase the difficulty of control in the process of vehicle travel, especially in narrow space or complex road conditions, turning radius is large, difficult to smoothly pass.

[0003] Prior art has the following shortcomings: the existing structure adopts single ball, double ball trailer device in use, it is mainstream to also have the device of three ball configuration, but all need to switch matching different trailer by the way of disassembling ball head, operation is cumbersome, also prone to the problem of part loss, the above operation mode improves the work tediousness in actual operation process, thus reduce work efficiency. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of prior art, the utility model provides a kind of rotation structure of trailer ball to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of rotation structure of trailer ball, including L arm main body, the L arm main body inside is provided with pin shaft, the L arm main body one side inner wall is provided with adjusting hole, the L arm main body one side is provided with support, the support outer side is provided with limit bolt, the limit bolt one end is provided with R type pin, the L arm main body one end is provided with limit hole, the support is close to the outer side of limit pin of edge, the limit pin one end is provided with secondary R type pin, the support one end is provided with support block, the support block outer side is provided with ball head main body, the support block inner side is provided with connecting column, the connecting column inner wall is provided with clamping hole.

[0006] As a preferred technical scheme of the utility model, the number of R type pins is several groups, and the R type pins are directly clamped with the pin shaft and the limit bolt.

[0007] As a preferred technical scheme of the utility model, the number of adjusting holes is several groups, and the adjusting holes are longitudinally equidistantly installed on the inner wall of one side of the L arm main body.

[0008] As a preferred technical scheme of the utility model, the number of the limiting pegs is two groups, the limiting pegs are symmetrically installed on the outer side of the support, and one end of the limiting peg penetrates through the inside of the adjusting hole and is clamped with the R-shaped pin.

[0009] As a preferred technical scheme of the utility model, one end of the limiting pin penetrates through the inside of the clamping hole and is clamped with the secondary R-shaped pin.

[0010] As a preferred technical scheme of the utility model, the number of the ball head bodies is three groups, the three groups of ball head bodies are fixedly installed on the outer side of the supporting block, and the sizes of the three groups of ball head bodies are different.

[0011] As a preferred technical scheme of the utility model, the outer diameter size of the connecting column matches the inner diameter size of the limiting hole, and the connecting column is sleeved in the inside of the limiting hole.

[0012] Compared with the prior art, the utility model provides a rotating structure of a trailer ball, which has the following advantages

[0013] Beneficial effects:

[0014] The rotating structure of the trailer ball, by setting the limiting hole, the limiting pin, the supporting block and the connecting column, when the L arm body is used, the limiting pin is pulled out, and the angle of the supporting block can be adjusted by the cooperation of the limiting hole and the connecting column, so that the ball head body can rotate at any angle along the axis, and the angle is adjusted to the required orthogonal angle, and in this way, the use convenience of the L arm body is improved, and the loss of parts can be prevented. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is an overall appearance structure schematic view of the utility model;

[0016] Figure 2 It is an overall side structure schematic view of the utility model;

[0017] Figure 3 It is an L arm body and support structure schematic view of the utility model;

[0018] Figure 4 It is a supporting block and ball head body structure schematic view of the utility model.

[0019] In the drawing: 1, L arm body; 2, pin shaft; 3, adjusting hole; 4, support; 41, limiting hole; 42, limiting pin; 43, secondary R-shaped pin; 5, limiting peg; 6, R-shaped pin; 7, supporting block; 8, ball head body; 9, connecting column; 10, clamping hole. PREFERRED EMBODIMENT

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0021] Please refer to Figures 1-4 In the embodiment, the rotating structure of a trailer ball comprises an L-arm body 1, a pin shaft 2 is arranged on the inner side of the L-arm body 1, an adjusting hole 3 is arranged on the inner wall of one side of the L-arm body 1, a support 4 is arranged on one side of the L-arm body 1, a limiting bolt 5 is arranged on the outer side of the support 4, an R-shaped pin 6 is arranged at one end of the limiting bolt 5, a limiting hole 41 is arranged at one end of the L-arm body 1, a limiting pin 42 is arranged on the outer side of the edge of the support 4, a secondary R-shaped pin 43 is arranged at one end of the limiting pin 42, a supporting block 7 is arranged at one end of the support 4, a ball head body 8 is arranged on the outer side of the supporting block 7, a connecting column 9 is arranged on the inner side of the supporting block 7, and a clamping hole 10 is arranged on the inner wall of the connecting column 9.

[0022] Refer to Figure 2 The number of R-shaped pins 6 is several groups, and the R-shaped pins 6 are directly clamped with the pin shaft 2 and the limiting bolt 5.

[0023] Specifically, a plurality of groups of R-shaped pins 6 can be arranged to limit the pin shaft 2 and the limiting bolt 5, thereby improving the use stability of the pin shaft 2 and the limiting bolt 5.

[0024] Refer to Figures 1-3 The number of adjusting holes 3 is several groups, and the adjusting holes 3 are longitudinally and equidistantly arranged on the inner wall of one side of the L-arm body 1.

[0025] Specifically, a plurality of groups of adjusting holes 3 can be arranged to adjust the height of the support 4, so that the L-arm body 1 is suitable for different trailers, thereby improving the applicability of the L-arm body 1.

[0026] Refer to Figures 2-3 The limiting pin 42 penetrates the inside of the clamping hole 10 and is clamped with the secondary R-shaped pin 43 at one end.

[0027] Specifically, the secondary R-shaped pin 43 can be arranged to limit the limiting pin 42, thereby improving the use stability of the limiting pin 42.

[0028] Refer to Figures 1-4 The number of ball head bodies 8 is three groups, the three groups of ball head bodies 8 are fixedly arranged on the outer side of the supporting block 7, the three groups of ball head bodies 8 are different in size, the outer diameter of the connecting column 9 matches the inner diameter of the limiting hole 41, and the connecting column 9 is sleeved in the limiting hole 41.

[0029] Specifically: the three groups of ball head body 8 are set to different sizes, which can improve the applicability of the L arm body 1, so as to cope with different trailers; by cooperating the limiting hole 41 with the connecting column 9, the angle of the supporting block 7 can be adjusted, so that the ball head body 8 can rotate at any angle along the axis, thereby improving the convenience of using the L arm body 1.

[0030] The working principle and use process of the utility model: when the operator uses the L arm body 1, after installing the L arm body 1 on the vehicle through the pin shaft 2, in the daily use process of the L arm body 1, by cooperating the adjusting hole 3 with the limiting bolt 5, the height of the support 4 can be adjusted, so that the L arm body 1 is suitable for different trailers, then when using the L arm body 1, when the angle of the ball head body 8 needs to be adjusted, the auxiliary R-shaped pin 43 is pulled out from the limiting pin 42, then the limiting pin 42 is pulled out, then by cooperating the limiting hole 41 with the connecting column 9, the angle of the supporting block 7 can be adjusted, so that the ball head body 8 can rotate at any angle along the axis, and is adjusted to the required orthogonal angle, in this way, not only the convenience of using the L arm body 1 is improved, but also the loss of parts can be prevented.

[0031] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features. Any modification, equivalent replacement, improvement etc. within the spirit and principles of the utility model should be contained in the protection scope of the utility model.

Claims

1. A swivel structure of a trailer ball comprising an L-arm body (1), characterized in that: The inside of the L arm body (1) is provided with a pin shaft (2), the inside wall of one side of the L arm body (1) is provided with an adjusting hole (3), one side of the L arm body (1) is provided with a support (4), the outer side of the support (4) is provided with a limiting bolt (5), one end of the limiting bolt (5) is provided with an R type pin (6), one end of the L arm body (1) is provided with a limiting hole (41), the outer side of the edge of the support (4) is provided with a limiting pin (42), one end of the limiting pin (42) is provided with a secondary R type pin (43), one end of the support (4) is provided with a supporting block (7), the outer side of the supporting block (7) is provided with a ball head body (8), the inner side of the supporting block (7) is provided with a connecting column (9), the inner wall of the connecting column (9) is provided with a clamping hole (10).

2. A swivel structure for a trailer ball as claimed in claim 1, characterized in that: The number of R type pins (6) is several groups, and the R type pins (6) are directly clamped with the pin shaft (2) and the limiting bolt (5).

3. A swivel structure for a trailer ball as claimed in claim 1, wherein: The number of adjusting holes (3) is several groups, and the adjusting holes (3) are installed longitudinally equidistantly on the inner wall of one side of the L arm body (1).

4. The swivel structure for a trailer ball of claim 1, wherein: The number of limiting bolts (5) is two groups, and the limiting bolts (5) are symmetrically installed on the outer side of the support (4), and one end of the limiting bolt (5) penetrates the inside of the adjusting hole (3) and is clamped with the R type pin (6).

5. A swivel structure for a trailer ball as defined in claim 1, wherein: One end of the limiting pin (42) penetrates the inside of the clamping hole (10) and is clamped with the secondary R type pin (43).

6. A swivel structure for a trailer ball as defined in claim 1, characterized in that: The number of ball head bodies (8) is three groups, the three groups of ball head bodies (8) are fixedly installed on the outer side of the supporting block (7), and the three groups of ball head bodies (8) are different in size.

7. A swivel structure for a trailer ball as defined in claim 1, characterized in that: The outer diameter size of the connecting column (9) matches the inner diameter size of the limiting hole (41), and the connecting column (9) is sleeved in the inside of the limiting hole (41).

Images