CN213619234U - Multifunctional trailer ball - Google Patents

Abstract

The utility model discloses a multifunctional trailer ball. Including the body of rod, tow ring, hemisphere, flange and lead screw, hemisphere are buckled the tow ring and are formed complete tow ball and be used for the car as a house to pull, take off the hemisphere then can insert general shackle of hanging or hoist and mount ring, have reached the purpose that both can pull the car as a house and can pull the multi-functional usage of rescue.

Description

Multifunctional trailer ball

Technical Field

The utility model belongs to the technical field of mechanical design and manufacturing, especially, belong to auto-parts design and manufacturing technical field, in particular to pull and rescue multi-functional trailer ball with trailer car as a house, car.

Background

The trailer ball is a component with a spherical structure, which is arranged on a trailer hook at the rear end of an automobile and is used for connecting a trailer car or other trailer vehicles such as motorboats, motorcycles, bicycles and the like, and the trailer ball is nested and matched with a trailer ball cover of the trailer car or other trailer vehicles to form a freely movable joint connection structure, so that the aim of flexibly steering the trailer along with a trailer in the driving process is fulfilled.

Patents CN209426493U, CN305644833S, CN206124643U, etc. respectively disclose trailer ball solutions.

Some functions of the above-mentioned patent are single, some provide the scheme of changing different specification tugs. However, all of these patent technologies cannot simultaneously solve the following technical problems: can change the tow ball of different specifications, provide the general socket of third party towing tool hoist, be convenient for insert rapidly and hang general shackle, hoist and mount ring and connect the demand in order to satisfy the vehicle rescue under the specific condition, it is convenient to change, simple structure, easily low-cost manufacturing.

Disclosure of Invention

The utility model aims to provide a: to the problems existing in the prior art, the utility model provides a can quick replacement different specifications tow ball, can insert fast and hang general purpose shackle, hoist and mount ring etc. tow, the trailer ball of hoist to the different demands of pulling, rescuing of quick response.

The utility model discloses a following technical scheme realizes:

multifunctional trailer ball, including the body of rod, tow ring, hemisphere, flange and lead screw, its characterized in that: the tow ring sets up in body of rod top, two hemispheres are central symmetry overall arrangement with using the tow ring central point as the benchmark and set up in the tow ring both sides, tighten up the knot by holding screw the tow ring forms complete trailer spheroid for drag the car as a house, get out the hemisphere after, then expose and set up in the tow ring of body of rod upper end, be used for inserting and hang general shackle, hoist and mount ring, be used for pull, vehicle rescue.

Be provided with the wedge post on the hemisphere, be provided with half taper hole on the wedge post wedge face, a side of hole promptly is the conical surface of taking the inclination, under the mounted state, the wedge post of two hemispheres with the laminating of wedge face form with the cylinder of tow ring hole adaptation, simultaneously half taper hole also synthesizes a taper hole, but half respective conical surface opposite direction, and along with being close the taper hole bottom, distance between the half taper surface of half taper hole progressively reduces.

The hemisphere top is provided with holding screw via hole, the tow ring top is provided with holding screw silk hole, states two hemispheres and is passed by the screw via hole, holding screw silk hole, half taper hole, is fixed in on the tow ring.

The multifunctional trailer ball mounting structure is characterized in that a mounting flange is arranged at the lower end of the rod body, and a screw rod is arranged at the bottom of the mounting flange and used for fixedly mounting the multifunctional trailer ball on the arm body of the trailing arm.

The utility model has the advantages that:

in the utility model, the towing ring is arranged at the top end of the rod body, the two hemispheres are arranged at the two sides of the towing ring in a centrosymmetric layout, when a fastening screw is downwards attacked, the semispherical wedge-shaped column semi-conical hole is axially pushed to the towing ring, so that the hemispheres are axially tightened to the towing ring, and simultaneously, the wedge-shaped column is axially and oppositely tightened to the towing ring in the process of the wedging, due to the action of the wedge surface, the wedge-shaped column radially expands to the towing ring to prop against the inner wall of the inner hole of the towing ring, so that the two hemispheres are fastened at the two sides of the towing ring to completely and tightly fasten the towing ring to form a complete towing ball for towing a caravan, after the hemispheres are taken out, the towing ring arranged at the upper end of the rod body is exposed for inserting and hanging a general shackle and a hoisting ring for towing and vehicle rescue, thereby achieving the purposes of replacing the hemispheres with different standard sphere diameters and additionally hanging other towing rescue, furthermore, the hemisphere mounting mode is similar to the cement expansion screw principle, forms very tight pretension installation mode for the trailer ball obtains fastening prestressing force, obtains bigger bearing capacity, trailer ball spare part simple structure, and is small in quantity, the body of rod, hemisphere all can conveniently be prepared through forging, cast mode, have reached and have reduced manufacturing cost by a wide margin on realizing multi-functional basis.

Drawings

FIG. 1 is a front view of the structure of the present invention;

FIG. 2 is a three-dimensional structure diagram of the present invention;

FIG. 3 is a disassembled schematic view of the present invention;

FIG. 4 is a partial cross-sectional view of the assembly of the present invention;

FIG. 5 is a schematic view of the assembled horizontal section of the present invention;

fig. 6 is a sectional view of the hemisphere assembly of the present invention;

FIG. 7 is a top view of the assembly of the tow ball hemisphere of the present invention;

FIG. 8 is a front view of the semi-sphere of the drag ball of the present invention;

FIG. 9 is a top view of the tow ball hemisphere of the present invention;

FIG. 10 is a perspective view of a towing ball hemisphere in accordance with the present invention;

FIG. 11 is a perspective view of the body of the tow ball of the present invention;

fig. 12 is a perspective view of embodiment 2 of the present invention;

FIG. 13 is a drawing showing the assembly and disassembly of embodiment 2 of the present invention;

fig. 14 is a schematic view of embodiment 3 of the present invention;

fig. 15 is a sectional view of embodiment 3 of the present invention;

fig. 16 is a perspective view of embodiment 4 of the present invention;

fig. 17 is a perspective view of embodiment 5 of the present invention;

fig. 18 is a perspective view of embodiment 6 of the present invention;

fig. 19 is a perspective view of embodiment 7 of the present invention;

fig. 20 is a perspective view of embodiment 8 of the present invention;

fig. 21 is a perspective view of embodiment 9 of the present invention

Fig. 22 is a perspective view of embodiment 10 of the present invention.

Wherein, 1-rod body; 11-a tow ring; 111-inner bore of drag ring; 12-a flange; 13-a screw rod; 14-tightening the screw hole; 2-hemisphere; 21-a wedge-shaped column; 211-half cone hole; 212-wedge surface; 22-screw through holes; 3, tightening the screw; 4-ball nut; 5, a standard hoisting ring; 6-trailer arm body.

Detailed Description

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present invention is described in detail below by way of embodiments, which are only used for further description of the present invention, but should not be construed as limiting the scope of the present invention, and the modifications and adjustments made by those skilled in the art according to the above-mentioned contents of the present invention are also included in the scope of the present invention.

With reference to fig. 1 to 21.

Example 1

Multi-functional trailer ball as shown in the figure, including the body of rod 1, tow ring 11, hemisphere 2, flange 12 and lead screw 13, its characterized in that: tow ring 11 sets up in the 1 top of the body of rod, two hemispheres 2 set up in tow ring 11 both sides with central symmetry overall arrangement, be provided with wedge post 21 on hemisphere 2, be provided with half taper hole 211 on the wedge post wedge face 212, a side of hole is the conical surface of taking the inclination promptly, under the installation status, two hemispheres 2's wedge post 21 with wedge face 212 laminating form with the cylinder of tow ring hole 111 adaptation, simultaneously half taper hole 211 also synthesizes a taper hole, but respective half conical surface opposite direction, and along with being close the taper hole bottom, distance between half taper hole 211's the half taper face progressively reduces.

The top of hemisphere 2 is provided with holding screw via hole 22, the top of towing ring 11 is provided with holding screw hole 14.

When the set screw 3 is tapped downwards, the conical surface of the semi-conical hole 211 of the semi-spherical wedge-shaped column is pushed axially towards the towing ring 11, so that the semi-sphere 2 is axially tightened towards the towing ring 11, and meanwhile, in the process that the wedge-shaped column 21 is axially tightened towards the towing ring 11, due to the action of the wedge surface 212, the wedge-shaped column 21 radially expands towards the towing ring 11 in the inner hole 111 of the book towing ring and props against the inner wall of the inner hole 111 of the towing ring 11, so that the two semi-spheres 2 are fastened on two sides of the towing ring 11, and the towing ring is completely fastened to form a complete towing ball for towing a motor home.

The lower end of the rod body 1 is provided with an installation flange 12, the bottom of the installation flange is provided with a screw rod 13, and the multifunctional trailer ball is fixedly installed on the trailing arm body 6 through a nut 4.

Example 2

After the hemisphere 2 is taken off, the towing ring 11 arranged at the upper end of the rod body 1 is exposed and used for inserting and hanging the general shackle 5 and the hoisting ring 5 for traction and vehicle rescue.

Example 3

As shown in fig. 14-15, for the application with low installation accuracy and mechanical requirement, the wedge-shaped column 11 can be simplified to be a complete cylinder, the tightening screw hole is directly arranged on the cylinder 11, and the two hemispheres 2 are directly and axially clamped and fixed on the towing ring 11 through the screw 3, so that the manufacturing cost can be further reduced by the simplified scheme.

Example 4

As shown in fig. 16, the trailer ball mounting screw rod 13 can be changed into a pin hole quick-inserting mode according to the mounting requirement.

Example 5

As shown in fig. 17, the trailer ball can be mounted on the universal trailer hitch arm 6.

Example 6

As shown in fig. 18, the trailer ball enables the universal tiger head hook arm body 6 to be additionally hung with the universal hoisting ring 5.

Example 7

As shown in fig. 19, the trailer ball is integrally integrated on the universal trailer tiger head hook arm body 6.

Example 8

As shown in fig. 20, the hitch ball may be mounted on the universal quick-insertion arm 6.

Example 9

As shown in fig. 21, the trailer ball can enable the universal quick-insertion arm 6 to hang the universal lifting ring 5.

Example 10

As shown in fig. 22, the trailer ball is integrally integrated on the universal quick-insertion arm 6.

Claims (4)

1. The utility model provides a multi-functional trailer ball, includes the body of rod, tow ring, hemisphere, flange and lead screw, its characterized in that: the tow ring sets up in the body of rod top, two hemispheres use the tow ring central point as the benchmark to be central symmetry overall arrangement and set up in the tow ring both sides, detain the tow ring forms the spheroid.

2. A multi-purpose hitch ball as claimed in claim 1, wherein: be provided with the wedge post on the hemisphere, be provided with half taper hole on the wedge post wedge face, promptly a side of half taper hole is the conical surface of taking the inclination, under the mounted state, the wedge post of two hemispheres with the wedge face laminating form with the cylinder of tow ring hole adaptation, simultaneously half taper hole also synthesizes a taper hole, but half respective conical surface direction is relative, and along with being close the taper hole bottom, distance between the half taper face of half taper hole progressively reduces.

3. A multi-purpose hitch ball as claimed in claim 1, wherein: the hemisphere top is provided with holding screw via hole, the tow ring top is provided with holding screw silk hole, two hemispheres are passed by the screw via hole, holding screw silk hole, half taper hole are fixed in on the tow ring.

4. A multi-purpose hitch ball as claimed in claim 1, wherein: the lower end of the rod body is provided with an installation flange, and a screw rod is arranged at the bottom of the installation flange.

Images