Rotatable multifunctional trailer arm

Abstract

The utility model relates to the technical field of trailer tools, and discloses a rotatable multifunctional trailer arm which comprises an arm body, the side end of the arm body is rotatably connected with a rotating block, the rotating block has a rotating axis when rotating, the rotating block is fixedly provided with a first trailer part and a second trailer part which are used for trailer, and a locking part is arranged between the rotating block and the arm body. The locking component is used for locking / unlocking the rotating block and the arm body, and the first trailer piece and the second trailer piece are annularly distributed around the rotating axis of the rotating block. The rotatable multifunctional trailer arm is simple in structure and low in production cost; according to the multifunctional trailer, the multiple different trailer parts are arranged, the functions are diversified, the different trailer parts do not need to be detached and replaced for use, the different trailer parts can be used through rotation switching, operation is convenient, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of trailer tools, in particular to a rotatable multifunctional trailer arm. Background Art

[0002] A trailer arm is a trailer tool used for towing a vehicle. A trailer arm generally includes a trailer arm body and a trailer ball head connected to the trailer arm body. The trailer arm body is usually installed on a towing vehicle, while the trailer ball head is usually connected to a towed vehicle such as a trailer or a broken vehicle. Some existing trailer arms have trailer ball heads of a single size. When a ball head of a different size is needed, the original ball head needs to be removed and a new large or small ball head needs to be installed. The removal and replacement of the ball head is time-consuming and labor-intensive, has a single function, and has a poor user experience. Utility Model Content

[0003] To solve at least one aspect of the above problems, the utility model provides a rotatable multifunctional trailer arm, comprising: an arm body, a side end of the arm body is rotatably connected to a rotating block, the rotating block has a rotating axis when rotating, a first trailer part and a second trailer part for the trailer are fixedly arranged on the rotating block, a locking component is arranged between the rotating block and the arm body, the locking component is used to lock / unlock the rotating block and the arm body, the first trailer part and the second trailer part are distributed in a ring around the rotating axis of the rotating block, and the positions of the first trailer part and the second trailer part are switched by rotating the rotating block; the rotatable multifunctional trailer arm of the utility model has a simple structure and low production cost; a plurality of different trailer parts are arranged with various functions, different trailer parts do not need to be disassembled and replaced for use, and different trailer parts can be switched for use by rotation, which is easy to operate and saves time and effort.

[0004] Optionally, a rotating shaft is provided on a side of the rotating block close to the arm body, and a mounting groove corresponding to the rotating shaft is provided on the arm body, and the rotating shaft is rotatably disposed in the mounting groove.

[0005] Optionally, an anti-slip bolt is provided between the arm body and the rotating block, and the anti-slip bolt is used to prevent the rotating block from slipping out of the mounting groove. A bolt groove for installing the anti-slip bolt is provided on the arm body, and the bolt groove is connected to the mounting groove. One end of the anti-slip bolt passes through the bolt groove and is threadedly connected to the rotating shaft.

[0006] Optionally, the locking component includes a locking pin, a first through slot and a second through slot, the first through slot and the second through slot both correspond to the locking pin, the first through slot is opened on the arm body, and the second through slot is opened on the rotating block; when the locking pin is inserted into the first through slot and the second through slot at the same time, the rotating block is locked with the arm body; when the locking pin is pulled out of the first through slot and the second through slot, the rotating block is locked and unlocked with the arm body.

[0007] Optionally, the first trailer component is a first trailer ball head, and the second trailer component is: a second trailer ball head of a size different from that of the first trailer component.

[0008] Optionally, a third trailer component for a trailer is provided on the rotating block, and the first trailer component, the second trailer component and the third trailer component are distributed in a ring around the rotation axis of the rotating block.

[0009] Optionally, the third trailer component is: a third trailer ball head that is different in size from the first trailer component and the second trailer component.

[0010] Optionally, the third trailer component may also be a trailer hook or a trailer eye.

[0011] Optionally, a fourth trailer component for a trailer is fixedly disposed on the rotating block, and the first trailer component, the second trailer component, the third trailer component and the fourth trailer component are distributed in a ring around the rotation axis of the rotating block.

[0012] Optionally, the arm body includes a first arm body and a second arm body, the second arm body is slidably installed on the first arm body in a vertical direction, the first arm body is provided with a slide groove extending in the vertical direction, the second arm body is provided with a slider corresponding to the slide groove, the rotating block is provided at the side end of the second arm body away from the first arm body, the first arm body is provided with a plurality of first through holes in the vertical direction, the second arm body is provided with a second through hole corresponding to the first through hole, and a positioning pin for positioning is provided between the first arm body and the second arm body; when the first arm body and the second arm body are positioned, the positioning pin is simultaneously inserted into the first through hole and the second through hole.

[0013] The utility model discloses a rotatable multifunctional trailer arm, which has the advantages of simple structure and low production cost. An anti-slip bolt is arranged between the arm body and the rotating block, and the anti-slip bolt is used to prevent the rotating block from falling out of the mounting groove, and the utility model is reliable in use. A bolt groove for installing the anti-slip bolt is arranged on the arm body, and the bolt groove is connected with the mounting groove, and one end of the anti-slip bolt passes through the bolt groove and is threadedly connected with the rotating shaft, which is convenient for assembly. When switching is required, the rotating block and the arm body are unlocked by the locking component, and the rotating block can be rotated relative to the arm body at this time. After the rotation switching is completed, the rotating block and the arm body are locked and positioned by the locking component, which is convenient for use. A plurality of different trailer parts are arranged, and the functions are diverse. Different trailer parts do not need to be disassembled and replaced for use, and different trailer parts can be used by rotating switching, which is convenient to operate, saving time and effort. The second arm body is slidably installed on the first arm body along the vertical direction, and a slide groove is extended along the vertical direction on the first arm body, so that the second arm body can adjust the height according to the demand, and the second arm body slides smoothly when adjusting. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the rotatable multifunctional trailer arm of the utility model;

[0015] Figure 2 It is a three-dimensional diagram of the back side of the rotatable multifunctional trailer arm of the utility model;

[0016] Figure 3 It is a cross-sectional view of the rotatable multifunctional trailer arm of the utility model;

[0017] Figure 4 for Figure 3 Enlarged view of part A in the middle;

[0018] Figure 5 This is a schematic structural diagram of the second arm body of the rotatable multifunctional trailer arm of the utility model;

[0019] Figure 6 This is a structural schematic diagram of a second embodiment of a rotatable multifunctional trailer arm of the utility model;

[0020] Figure 7 This is a structural schematic diagram of a third embodiment of a rotatable multifunctional trailer arm of the utility model;

[0021] Figure 8 This is a structural schematic diagram of a fourth embodiment of a rotatable multifunctional trailer arm of the utility model;

[0022] Fig. 9 This is a structural schematic diagram of a fifth embodiment of a rotatable multifunctional trailer arm of the utility model;

[0023] The corresponding component names of the various figure marks in the figure are: 1 is the arm body, 101 is the installation groove, 102 is the bolt groove, 2 is the rotating block, 201 is the rotating shaft, 21 is the first trailer part, 22 is the second trailer part, 23 is the third trailer part, 24 is the fourth trailer part, 3 is the anti-dropping bolt, 31 is the locking pin, 32 is the first through groove, 33 is the second through groove, 4 is the first arm body, 401 is the first through hole, 402 is the slide groove, 5 is the second arm body, 501 is the second through hole, 502 is the slider, 6 is the positioning pin, and 7 is the locking sleeve. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0025] In the description of the present invention, it should be understood that the terms "upper" and "lower" and the like indicate positions or location relationships that are based on the positions or location relationships when the product is in normal use.

[0026] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0027] Embodiment 1:

[0028] See also Figure 1-Figure 5 The first embodiment of the utility model provides a rotatable multifunctional trailer arm, comprising: an arm body 1, a rotating block 2 is rotatably connected to the side end of the arm body 1, and the rotating block 2 has a rotating axis when rotating, and the rotating block 2 rotates around the rotating axis; a first trailer part 21 and a second trailer part 22 for trailers are fixedly arranged on the rotating block 2, and a locking component is arranged between the rotating block 2 and the arm body 1, and the locking component is used to lock / unlock the rotating block 2 and the arm body 1, and the first trailer part 21 and the second trailer part 22 are annularly distributed around the rotating axis of the rotating block 2, and the rotating block 2 is rotated by The positions of the first trailer part 21 and the second trailer part 22 are switched by rotating; when switching is required, the rotating block 2 and the arm body 1 are unlocked by the locking component, and the rotating block 2 can rotate relative to the arm body 1; after the rotation switching is completed, the rotating block 2 and the arm body 1 are locked and positioned by the locking component, which is easy to use; the rotatable multifunctional trailer arm of the utility model has a simple structure and low production cost; a plurality of different trailer parts are provided with various functions, and different trailer parts do not need to be disassembled and replaced for use, and different trailer parts can be used by rotating to switch, which is easy to operate and saves time and effort.

[0029] See also Figure 2-Figure 5A rotating shaft 201 is provided on one side of the rotating block 2 close to the arm body 1. The rotating shaft 201 is cylindrical, and the rotating shaft 201 is welded or integrally connected to the rotating block 2; a mounting groove 101 corresponding to the rotating shaft 201 is provided on the arm body 1, and the rotating shaft 201 is rotatably arranged in the mounting groove 101. The mounting groove 101 is a circular groove, so that the rotating shaft 201 can rotate 360 ​​degrees in the mounting groove 101; an anti-slip bolt 3 is provided between the arm body 1 and the rotating block 2, and the anti-slip bolt 3 is used to prevent the rotating block 2 from slipping out of the mounting groove 101, and is reliable to use; a bolt groove 102 for installing the anti-slip bolt 3 is provided on the arm body 1, and the bolt groove 102 is communicated with the mounting groove 101. One end of the anti-slip bolt 3 passes through the bolt groove 102 and is threadedly connected to the rotating shaft 201, and the rotating shaft 201 is provided with an internal thread corresponding to the anti-slip bolt 3, which is easy to assemble.

[0030] See also Figure 1-Figure 4 The locking component includes a locking pin 31, a first through slot 32 and a second through slot 33, the first through slot 32 and the second through slot 33 both corresponding to the locking pin 31, the first through slot 32 is arranged on the arm body 1, and the second through slot 33 is arranged on the rotating block 2; when the locking pin 31 is inserted into the first through slot 32 and the second through slot 33 at the same time, the rotating block 2 and the arm body 1 are locked; when the locking pin 31 is pulled out of the first through slot 32 and the second through slot 33, the rotating block 2 and the arm body 1 are locked and unlocked; one end of the locking pin 31 is limited by a detachable R-shaped pin; when only the first trailer part and the second trailer part symmetrically arranged are provided with one second through slot 33, the rotating block 2 switches the switching angle with 180 degrees as a unit; when three or four trailer parts are provided When the first trailer part 21 is used, the second through groove 33 is provided with two vertically distributed ones. At this time, the rotating block 2 is switched with a unit switching angle of 90 degrees; the first trailer part 21 is a first trailer ball head, and the second trailer part 22 is: a second trailer ball head of a size different from that of the first trailer part 21. According to different trailer requirements, the ball head of the required size is switched to perform trailering, which is convenient to use; the specific method is as follows: when using the first trailer part 21, the rotating block 2 is rotated to rotate the first trailer part 21 to the highest position, and locked by the locking pin 31; when the second trailer part 22 needs to be used, the locking pin 31 is removed and unlocked, and the rotating block 2 is rotated to rotate the second trailer part 22 to the highest position, and locked by the locking pin 31; the use method of the third trailer part and the fourth trailer part described below is the same as above.

[0031] See also Figure 1 , Figure 2 and Figure 5, a third trailer part 23 for trailer is provided on the rotating block 2, the first trailer part 21, the second trailer part 22 and the third trailer part 23 are distributed in a ring around the rotation axis of the rotating block 2, and the rotating block 2 is in the shape of a rectangular parallelepiped; the third trailer part 23 is: a third trailer ball head of a size different from the first trailer part 21 and the second trailer part 22; a fourth trailer part 24 for trailer can also be fixedly provided on the rotating block 2, the first trailer part 21, the second trailer part 22, the third trailer part 23 and the fourth trailer part 24 are distributed in a ring around the rotation axis of the rotating block 2; in this embodiment, the fourth trailer part 24 is a trailer ring, and can also be a trailer hook or other parts for trailers; the arm body 1 includes a first arm body 4 and a second arm body 5, the first arm body 4 is L-shaped, and is used to connect to an external traction trailer, and the first arm body 4 can be connected to the external traction trailer by a latch with a locking head, so as to improve the anti-theft performance The second arm body 5 is slidably installed on the first arm body 4 along the vertical direction, and a slide groove 402 is extended on the first arm body 4 in the vertical direction, so that the second arm body 5 can adjust the height according to the demand, and the second arm body 5 slides smoothly when adjusting; a slider 502 corresponding to the slide groove 402 is provided on the second arm body 5, and the rotating block 2 is arranged at the side end of the second arm body 5 away from the first arm body 4, and the first arm body 4 is provided with a plurality of first through holes 401 in the vertical direction, and a second through hole 501 corresponding to the first through hole 401 is provided on the second arm body 5, and a positioning pin 6 for positioning is provided between the first arm body 4 and the second arm body 5, and a lock sleeve 7 for limiting position is provided at the end of the positioning pin 6, and the lock sleeve 7 is unlocked by a key to improve the anti-theft performance; when the first arm body 4 and the second arm body 5 are positioned, the positioning pin 6 is simultaneously inserted into the first through hole 401 and the second through hole 501, which is convenient to use.

[0032] Embodiment 2:

[0033] See also Figure 6 The difference between the second embodiment and the first embodiment is that the number of trailer parts is set to three, the fourth trailer part is not set, the third trailer part 24 is a trailer ring, and the trailer ring is hinged to one side of the rotating block 2 to meet different trailer requirements and has a wide range of uses.

[0034] Embodiment three:

[0035] See also Figure 7 The difference between the third embodiment and the first embodiment is that the number of trailer parts is set to three, the fourth trailer part is not set, the third trailer part 23 is a trailer hook, which can be used to install a trailer rope, etc. The trailer hook is fixed on the rotating block 2 by bolts to meet different trailer requirements.

[0036] Embodiment 4:

[0037] See also Figure 8The difference between the fourth embodiment and the first embodiment is that the number of trailer parts is set to two, the third trailer part and the fourth trailer part are not set, the first trailer part and the second trailer part are trailer ball heads of different sizes, respectively, and the structure is simple, which can meet the trailer requirements of various trailer ball head sizes.

[0038] Embodiment five:

[0039] See also Fig. 9 The difference between the fifth embodiment and the fourth embodiment is that a third trailer component is added, and the third trailer component is a third trailer ball head, which further meets the needs of trailer ball heads of different sizes and has a wider range of uses.

[0040] In addition to the above embodiments, the first trailer part, the second trailer part, the third trailer part and the fourth trailer part can be arbitrarily selected and combined according to user needs, which is flexible to use.

[0041] The utility model discloses a rotatable multifunctional trailer arm with simple structure and low production cost; an anti-slip bolt is arranged between the arm body and the rotating block, and the anti-slip bolt is used to prevent the rotating block from slipping out of the installation slot, and is reliable to use; a bolt slot for installing the anti-slip bolt is arranged on the arm body, and the bolt slot is communicated with the installation slot, and one end of the anti-slip bolt passes through the bolt slot and is threadedly connected with the rotating shaft, which is convenient to assemble; when switching is required, the rotating block and the arm body are unlocked by the locking component, and the rotating block can be rotated relative to the arm body; after the rotation switching is completed, the rotating block and the arm body are locked and positioned by the locking component, which is convenient to use; a plurality of different trailer parts are arranged with various functions, and different trailer parts do not need to be disassembled and replaced for use, and different trailer parts can be used by rotating switching, which is convenient to operate, saving time and effort; the second arm body is slidably mounted on the first arm body along the vertical direction, and a slide groove is extended along the vertical direction on the first arm body, so that the second arm body can adjust the height according to the demand, and the second arm body slides smoothly when adjusted.

[0042] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A rotatable multifunctional trailer arm, characterized in that: include: An arm body (1) is provided, wherein a rotating block (2) is rotatably connected to a side end of the arm body (1), wherein the rotating block (2) has a rotation axis when rotating, wherein a first trailer part (21) and a second trailer part (22) for trailers are fixedly arranged on the rotating block (2), wherein a locking component is arranged between the rotating block (2) and the arm body (1), wherein the locking component is used to lock / unlock the rotating block (2) and the arm body (1), wherein the first trailer part (21) and the second trailer part (22) are annularly distributed around the rotation axis of the rotating block (2), and the positions of the first trailer part (21) and the second trailer part (22) are switched by the rotation of the rotating block (2).

2. The rotatable multifunctional trailer arm according to claim 1, characterized in that: A rotating shaft (201) is provided on one side of the rotating block (2) close to the arm body (1); a mounting groove (101) corresponding to the rotating shaft (201) is provided on the arm body (1); and the rotating shaft (201) is rotatably disposed in the mounting groove (101).

3. The rotatable multifunctional trailer arm according to claim 2, characterized in that: An anti-slip bolt (3) is provided between the arm body (1) and the rotating block (2), and the anti-slip bolt (3) is used to prevent the rotating block (2) from slipping out of the mounting groove (101). A bolt groove (102) for installing the anti-slip bolt (3) is provided on the arm body (1), and the bolt groove (102) is communicated with the mounting groove (101). One end of the anti-slip bolt (3) passes through the bolt groove (102) and is threadedly connected to the rotating shaft (201).

4. The rotatable multifunctional trailer arm according to claim 1, characterized in that: The locking component comprises a locking pin (31), a first through slot (32) and a second through slot (33); the first through slot (32) and the second through slot (33) both correspond to the locking pin (31); the first through slot (32) is provided on the arm body (1), and the second through slot (33) is provided on the rotating block (2); when the locking pin (31) is inserted into the first through slot (32) and the second through slot (33) at the same time, the rotating block (2) and the arm body (1) are locked; when the locking pin (31) is pulled out of the first through slot (32) and the second through slot (33), the rotating block (2) and the arm body (1) are locked and unlocked.

5. The rotatable multifunctional trailer arm according to claim 1, characterized in that: The first trailer component (21) is a first trailer ball head, and the second trailer component (22) is a second trailer ball head of a different size from the first trailer component (21).

6. The rotatable multifunctional trailer arm according to claim 5, characterized in that: A third trailer component (23) for a trailer is provided on the rotating block (2); the first trailer component (21), the second trailer component (22) and the third trailer component (23) are distributed in a ring around the rotation axis of the rotating block (2).

7. The rotatable multifunctional trailer arm according to claim 6, characterized in that: The third trailer component (23) is a third trailer ball head having a size different from that of the first trailer component (21) and the second trailer component (22).

8. The rotatable multifunctional trailer arm according to claim 6, characterized in that: The third trailer component (23) is a trailer hook or a trailer ring.

9. The rotatable multifunctional trailer arm according to claim 6, characterized in that: A fourth trailer component (24) for a trailer is fixedly arranged on the rotating block (2), and the first trailer component (21), the second trailer component (22), the third trailer component (23) and the fourth trailer component (24) are distributed in a ring around the rotation axis of the rotating block (2).

10. The rotatable multifunctional trailer arm according to any one of claims 1 to 9, characterized in that: The arm body (1) comprises a first arm body (4) and a second arm body (5); the second arm body (5) is slidably mounted on the first arm body (4) along a vertical direction; a slide groove (402) is provided on the first arm body (4) extending along the vertical direction; a slider (502) corresponding to the slide groove (402) is provided on the second arm body (5); the rotating block (2) is arranged at a side end of the second arm body (5) away from the first arm body (4); a plurality of first through holes (401) are provided on the first arm body (4) along the vertical direction; a second through hole (501) corresponding to the first through hole (401) is provided on the second arm body (5); a positioning pin (6) for positioning is provided between the first arm body (4) and the second arm body (5); when the first arm body (4) and the second arm body (5) are positioned, the positioning pin (6) is simultaneously inserted into the first through hole (401) and the second through hole (501).

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