CN214112713U

CN214112713U - Spare tire device for special vehicle

Info

Publication number: CN214112713U
Application number: CN202022962504.5U
Authority: CN
Inventors: 赵文明; 王高翔; 张随军; 郑黎明
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-09-03
Anticipated expiration: 2030-12-10

Abstract

The utility model discloses a special vehicle spare tyre device in the special vehicle spare tyre field, including the mounting bracket, the lower extreme fixed connection link of mounting bracket, the lower extreme fixed connection chassis of link, it is connected with the bull stick to rotate on the link, the outer wall fixedly connected with reel of bull stick, the outer wall fixed connection ratchet of bull stick, the inboard outer wall fixed connection mounting panel of link, the upper end of mounting panel rotates the one end of connecting the pivot, the other end of pivot rotates and connects on the link, the outer wall fixed connection pawl of pivot, pawl and ratchet meshing, the up end fixed connection backup pad of mounting panel, the upper end of backup pad is pushed up at the lower extreme of pawl, the upper end fixed connection spring of pawl, the inboard outer wall fixed connection backing plate of link, the lower extreme fixed connection spring of backing plate, the outer wall fixed connection driving lever of pivot; the utility model has low manufacturing and using cost and very convenient use.

Description

Spare tire device for special vehicle

Technical Field

The utility model relates to a special type vehicle spare tyre field specifically is a special type vehicle spare tyre device.

Background

Special vehicles, i.e. vehicles with an overall size, weight, etc. exceeding the design limits of the vehicle and for special purposes, are specially made or specially modified and provided with fixed equipment, and the main function is not to be used for motor vehicles carrying people or goods. The term "spare tire" is intended to mean that a spare tire is prepared for an automobile, and once the tire is burst or a problem occurs on the wheel, the spare tire can be replaced conveniently and timely, so that the automobile cannot be anchored midway.

The spare tire of the existing special vehicle is usually fixedly arranged on a door of a trunk, the opening of the trunk door can be influenced by the mode, the spare tire is tied on a chassis of the vehicle bottom through an iron chain, and the spare tire is very troublesome to install and difficult to take down when in use. There are also electrically powered devices used for lifting, but this method is expensive to use because a flat tire is not a common occurrence.

Therefore, the utility model provides a special type vehicle spare tyre device to solve the problem that proposes in the above-mentioned background art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a special type vehicle spare tyre device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a spare tire device for special vehicles comprises a mounting rack, wherein the lower end of the mounting rack is fixedly connected with a connecting rack, the lower end of the connecting frame is fixedly connected with an underframe, the connecting frame is rotatably connected with a rotating rod, the outer wall of the rotating rod is fixedly connected with a reel, the outer wall of the rotating rod is fixedly connected with a ratchet wheel, the outer wall of the inner side of the connecting frame is fixedly connected with a mounting plate, the upper end of the mounting plate is rotatably connected with one end of a rotating shaft, the other end of the rotating shaft is rotatably connected on the connecting frame, the outer wall of the rotating shaft is fixedly connected with a pawl which is engaged with the ratchet wheel, the upper end surface of the mounting plate is fixedly connected with a support plate, the upper end of the supporting plate is abutted to the lower end of the pawl, the upper end of the pawl is fixedly connected with the spring, the inner outer wall of the connecting frame is fixedly connected with the backing plate, the lower end of the backing plate is fixedly connected with the spring, and the outer wall of the rotating shaft is fixedly connected with the deflector rod.

As a further aspect of the present invention: the outer wall of the upper end of the middle position of the connecting frame is fixedly connected with a sliding seat, a sliding groove is formed in the sliding seat and is in a circular arc shape and concentric with the rotating shaft, the outer wall of the shifting lever is fixedly connected with a holding rod, and the holding rod is connected in the sliding groove in a sliding mode. The pawl is convenient to be pulled to be separated from the engagement state with the pawl, so that the rotating rod can rotate, and the iron chain is loosened to put down the tire.

As a further aspect of the present invention: the outer wall fixed connection iron chain of bull stick, the reel is provided with two and iron chain and bull stick fixed connection's position is located the position between two reels, the lower extreme fixed connection of iron chain rises the frame. The lifting frame is sleeved in the wheel hub, and the iron chain can be rolled up by rotating the rotating rod, so that the tire is lifted up.

As a further aspect of the present invention: the mounting frame, the connecting frame and the underframe are of hollow structures and are provided with a plurality of bolt holes, and bolts are matched on the bolt holes of the mounting frame. The hollow structure reduces the weight of the rainwater tank, reduces the manufacturing cost, and can reduce the retention of rainwater through a plurality of bolt holes.

As a further aspect of the present invention: the part of the rotating rod, which is far away from one end of the pawl and is positioned outside the connecting frame, is provided with a part with a diameter larger than the whole, and the part of the rotating rod, which is close to one end of the pawl and is positioned outside the connecting frame, is provided with a wrench groove. The limiting rotating rod ensures that the connecting frame cannot be disconnected while the rotating function is ensured. The wrench groove facilitates the rotation of the rotating rod by a tool.

As a further aspect of the present invention: the rotating rod is of a solid structure and is made of high-strength steel. The tyre can be pulled in on the underframe without breaking.

Advantageous effects

Compared with the prior art, the beneficial effects of the utility model are that: the lifting frame is placed in a hub of the tire, the hexagonal wrench is inserted into the wrench groove, the rotating rod can be rotated, and the iron chain can be rolled up by rotating the rotating rod, so that the tire is lifted upwards. The outer wall of bull stick is provided with the ratchet, is provided with the pawl on the link, thereby the spacing ratchet of pawl makes the ratchet can not rotate the bull stick and can not rotate when promoting, plays the effect of fixed bull stick after the tire promotes to accomplish, makes the tire fixed the lower extreme of this practicality, can not drop. Can stop at any time in the lifting process, and is convenient for a user to rest. The sliding holding rod enables the shifting rod to rotate, the shifting rod can drive the rotating shaft to rotate, the rotating shaft rotates to enable the pawl to be disengaged from the pawl, and therefore the rotating rod can rotate, and can rotate quickly through the pulling of the iron chain under the gravity of the tire until the tire falls to the ground. The function of disassembly is completed. The use is very convenient, the whole structure of the device is simple, and the manufacturing and using cost is low. Meanwhile, the device can be directly installed at the bottom of the vehicle, so that the use influence on the trunk door is reduced, and the appearance is not influenced.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the connection structure of the transfer rod of the present invention;

fig. 3 is a schematic view of the connection structure of the middle pawl and the ratchet wheel of the present invention.

In the figure: 1-mounting rack, 2-bottom rack, 3-connecting rack, 4-bolt, 5-bolt hole, 6-iron chain, 7-lifting rack, 8-reel, 9-ratchet wheel, 10-spanner groove, 11-holding rod, 12-rotating rod, 13-sliding seat, 14-deflector rod, 15-pawl, 16-backing plate, 17-spring, 18-supporting plate, 19-mounting plate, 20-rotating shaft and 21-sliding groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, in the embodiment of the present invention, a spare tire device for a special vehicle comprises a mounting frame 1, a connecting frame 3 fixedly connected to the lower end of the mounting frame 1, a bottom frame 2 fixedly connected to the lower end of the connecting frame 3, a rotating rod 12 rotatably connected to the connecting frame 3, a reel 8 fixedly connected to the outer wall of the rotating rod 12, a ratchet wheel 9 fixedly connected to the outer wall of the rotating rod 12, a mounting plate 19 fixedly connected to the inner outer wall of the connecting frame 3, an upper end of the mounting plate 19 rotatably connected to one end of a rotating shaft 20, the other end of the rotating shaft 20 rotatably connected to the connecting frame 3, a pawl 15 fixedly connected to the outer wall of the rotating shaft 20, a pawl 15 engaged with the ratchet wheel 9, a support plate 18 fixedly connected to the upper end of the mounting plate 19, an upper end of the support plate 18 abutting against the lower end of the pawl 15, a spring 17 fixedly connected to the upper end of the pawl 15, a backing plate 16 fixedly connected to the inner outer wall of the connecting frame 3, and a spring 17 fixedly connected to the lower end of the backing plate 16, the outer wall of the rotating shaft 20 is fixedly connected with a shift lever 14.

The outer wall of the upper end of the middle position of the connecting frame 3 is fixedly connected with a sliding seat 13, a sliding groove 21 is formed in the sliding seat 13, the sliding groove 21 is a circular arc-shaped sliding groove and is concentric with the rotating shaft 20, the outer wall of the shift lever 14 is fixedly connected with a holding rod 11, and the holding rod 11 is slidably connected in the sliding groove 21. The pawl 15 is convenient to be pulled to be disengaged from the pawl 9, so that the rotating rod 12 can rotate, and the iron chain 6 is loosened to put down the tire; the outer wall fixed connection iron chain 6 of bull stick 12, reel 8 are provided with two and

iron chain

6 and 12 fixed connection's of bull stick position are located the position between two reels 8, and the lower extreme fixed connection of iron chain 6 rises frame 7. The lifting frame 7 is sleeved into the hub, and the iron chain 6 can be rolled up by rotating the rotating rod 12, so that the tire is lifted up; a plurality of bolt holes 5 are formed in the mounting frame 1, the connecting frame 3 and the bottom frame 2 in a hollow structure, and bolts 4 are matched on the bolt holes 5 of the mounting frame 1. The hollow structure reduces the weight of the rainwater tank, reduces the manufacturing cost, and can reduce the retention of rainwater through a plurality of bolt holes; the part of the rotating rod 12, which is far away from one end of the pawl 15 and is positioned outside the connecting frame 3, is provided with a part with a diameter larger than the whole, and the part of the rotating rod 12, which is near one end of the pawl 15 and is positioned outside the connecting frame 3, is provided with a wrench groove 10. The limiting rotating rod 12 ensures the rotating function and cannot be disconnected from the connecting frame 3. The wrench slot 10 facilitates the rotation of the turn bar 12 with a tool; the rotating rod 12 is of a solid structure and is made of high-strength steel. Ensuring that the tyre can be pulled into the undercarriage 2 without breaking.

The utility model discloses a theory of operation is: during installation, the device can be installed on a frame at the bottom of a vehicle through the bolts 4, and the lifting frame 7 penetrates through a hub of a tire, so that the lifting frame is clamped in the hub horizontally and cannot be taken out of the hub. When a hexagonal wrench is inserted into the wrench slot 10, the rotating rod 12 is driven to rotate clockwise on the connecting frame 3, and the rotating rod 12 winds the iron chain 6 between the reels 8 on the rotating rod 12. At this time, each tooth can push the pawl 15 to rotate upwards when the ratchet wheel 9 rotates, then the next tooth is continuously meshed under the thrust of the spring 17, when the teeth are meshed, under the action of gravity, the tire can pull the chain downwards, so that the rotating rod 12 rotates anticlockwise, due to the existence of the pawl 15, the supporting plate 18 can support the pawl 15 and cannot rotate anticlockwise, the chain 6 cannot be loosened by the rotating rod 12, and the wheel is hung at the bottom of the device. When the tire needs to be put down, the holding rod 11 is pulled leftwards, the holding rod 11 pulls the poking rod 14 to enable the rotating shaft 20 to rotate anticlockwise, the rotating shaft 20 drives the pawl 15 to rotate anticlockwise until the pawl 15 is disengaged from the ratchet wheel 9, the ratchet wheel 9 is not limited by the pawl 15, and the rotating rod 12 is pulled anticlockwise by the tire, so that the rolled iron chain 6 is loosened until the tire falls to the ground.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a special type vehicle spare tyre device, includes mounting bracket (1), its characterized in that: the lower end of the mounting rack (1) is fixedly connected with the connecting rack (3), the lower end of the connecting rack (3) is fixedly connected with the chassis (2), the connecting rack (3) is connected with a rotating rod (12) in a rotating manner, the outer wall of the rotating rod (12) is fixedly connected with a reel (8), the outer wall of the rotating rod (12) is fixedly connected with a ratchet wheel (9), the inner side outer wall of the connecting rack (3) is fixedly connected with a mounting plate (19), the upper end of the mounting plate (19) is connected with one end of a rotating shaft (20) in a rotating manner, the other end of the rotating shaft (20) is connected onto the connecting rack (3) in a rotating manner, the outer wall of the rotating shaft (20) is fixedly connected with a pawl (15), the pawl (15) is meshed with the ratchet wheel (9), the upper end face of the mounting plate (19) is fixedly connected with a supporting plate (18), the upper end of the supporting plate (18) is propped against the lower end of the pawl (15), the upper end fixed connection spring (17) of pawl (15), inboard outer wall fixed connection backing plate (16) of link (3), the lower extreme fixed connection spring (17) of backing plate (16), the outer wall fixed connection driving lever (14) of pivot (20).

2. A spare tire device for a special vehicle as claimed in claim 1, wherein: the outer wall of the upper end of the middle position of the connecting frame (3) is fixedly connected with a sliding seat (13), a sliding groove (21) is formed in the sliding seat (13), the sliding groove (21) is a circular arc-shaped sliding groove and is concentric with the rotating shaft (20), the outer wall of the shifting rod (14) is fixedly connected with a holding rod (11), and the holding rod (11) is slidably connected in the sliding groove (21).

3. A spare tire device for a special vehicle as claimed in claim 1, wherein: the outer wall fixed connection iron chain (6) of bull stick (12), reel (8) are provided with two and iron chain (6) and position that bull stick (12) fixed connection is located the position between two reels (8), the lower extreme fixed connection of iron chain (6) rises frame (7).

4. A spare tire device for a special vehicle as claimed in claim 1, wherein: the mounting frame (1), the connecting frame (3) and the bottom frame (2) are of hollow structures and are provided with a plurality of bolt holes (5), and bolts (4) are matched on the bolt holes (5) of the mounting frame (1).

5. A spare tire device for a special vehicle as claimed in claim 1, wherein: the part of the rotating rod (12) which is far away from one end of the pawl (15) and is positioned on the outer side of the connecting frame (3) is provided with a part with a diameter larger than the whole, and the part of the rotating rod (12) which is close to one end of the pawl (15) and is positioned on the outer side of the connecting frame (3) is provided with a wrench groove (10).

6. A spare tire device for a special vehicle as claimed in claim 1, wherein: the rotating rod (12) is of a solid structure and is made of high-strength steel.