CN206298301U - A kind of automobile changes spare tyre jack - Google Patents

Abstract

A jack for replacing a spare tire of an automobile, comprising a jack body, an arc-shaped fixing seat matching the curvature of the tire is provided on one side of the bottom of the jack body, the concave surface of the arc-shaped fixing seat faces away from the jack body, The fixed seat is provided with a fixing mechanism that fixes the arc-shaped fixed seat and the tire together. The utility model adopts the above scheme, effectively utilizes the spare tire before replacement and the waste tire after replacement, and combines the jack body with the tire so that the tire becomes a part of the jack base. Since the tire has a large contact with the ground On the premise of basically not changing the volume of the jack, it greatly enhances the stability of the jack, avoids the situation of displacement or dumping during use, and ensures the safety of people in the process of replacing the spare tire.

Description

Jack for replacing spare tire of automobile

Technical field:

The utility model relates to a jack for replacing a spare tire of an automobile.

Background technique:

When the vehicle has a sudden tire blowout, it is necessary to replace the spare tire carried by the vehicle in time. In the process of replacing the spare tire, the vehicle needs to be jacked up with a jack for operation. At present, most cars place the jack in the trunk near the spare tire. Due to the limited capacity of the trunk, the jack can only adopt a simple structure that can be folded. The contact area of the spare tire is small, the stability is poor, and the situation of displacement or even toppling is prone to occur in the process of replacing the spare tire. If people are operating under the car at this time, it will cause serious accidents and there is a great potential safety hazard.

Utility model content:

In order to make up for the deficiencies in the prior art, the utility model provides a jack for replacing a spare tire of an automobile. Together, the tires become a part of the jack base. Since the tires have a large contact area with the ground, the stability of the jack is greatly enhanced without changing the volume of the jack, and avoiding the occurrence of The situation of displacement or dumping ensures the safety of people in the process of replacing the spare tire, and solves the problems existing in the prior art.

The technical scheme that the utility model adopts for solving the problems of the technologies described above is:

A jack for replacing a spare tire of an automobile, comprising a jack body, an arc-shaped fixing seat matched with the curvature of the tire is provided on one side of the bottom of the jack body, the concave surface of the arc-shaped fixing seat faces away from the jack body, The fixed seat is provided with a fixing mechanism that fixes the arc-shaped fixed seat and the tire together.

The fixing mechanism includes a fixing piece hinged at the bottom of the arc-shaped fixing seat.

The fixing mechanism includes a first fixing chain and a second fixing chain arranged at intervals on the top of the arc-shaped fixing seat, and a first clamping mechanism is provided at the end of the first fixing chain, and the first clamping mechanism includes a The first cylinder with internal thread at the end of the first fixed chain, the first telescopic rod is movably installed inside the first cylinder, and the end of the first telescopic rod is hinged with a clamping rod. The end is provided with a second clamping mechanism, the second clamping mechanism includes a second cylinder with internal threads connected to the end of the second fixed chain, and a second telescopic rod is movably installed inside the second cylinder , a fastening cylinder capable of accommodating the fastening rod is hinged at the end of the second telescopic rod.

The utility model adopts the above scheme, effectively utilizes the spare tire before replacement and the waste tire after replacement, and combines the jack body with the tire so that the tire becomes a part of the jack base. Since the tire has a large contact with the ground On the premise of basically not changing the volume of the jack, it greatly enhances the stability of the jack, avoids the situation of displacement or dumping during use, and ensures the safety of people in the process of replacing the spare tire.

Description of drawings:

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic structural view of the utility model in use.

Fig. 3 is a structural schematic diagram of the first clamping mechanism and the second clamping mechanism of the present invention.

In the figure, 1. jack body, 2. arc-shaped fixed seat, 3. fixed piece, 4. the first fixed chain, 5. the second fixed chain, 6. the first cylinder, 7. the first telescopic rod, 8. Fastening rod, 9, the second cylinder, 10, the second telescopic rod, 11, the fastening cylinder.

detailed description:

In order to clearly illustrate the technical features of this solution, the utility model will be described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

As shown in Figures 1-3, a jack for replacing a spare tire for a car, a jack for replacing a spare tire for a car, includes a jack body 1, and an arc matching the arc of the tire is provided on one side of the bottom of the jack body 1. Shaped fixed seat 2, the concave surface of described arc-shaped fixed seat 2 faces away from the jack body 1, and the arc-shaped fixed seat 2 is provided with a fixing mechanism that the arc-shaped fixed seat 2 and the tire are fixed together.

The fixing mechanism includes a fixing piece 3 hinged at the bottom of the arc-shaped fixing seat 2 .

The fixing mechanism includes a first fixing chain 4 and a second fixing chain 5 arranged at intervals on the top of the arc-shaped fixing seat 2, and a first clamping mechanism is arranged at the end of the first fixing chain 4, and the first clamping mechanism It includes a first cylinder 6 with internal threads connected to the end of the first fixed chain 4, a first telescopic rod 7 is movably installed inside the first cylinder 6, and a card is hinged at the end of the first telescopic rod 7. The fixed rod 8 is provided with a second clamping mechanism at the end of the second fixed chain 5, and the second clamping mechanism includes a second cylinder 9 with an internal thread connected to the end of the second fixed chain 5. A second telescopic rod 10 is movably installed inside the second cylinder 9 , and a fastening cylinder 11 capable of accommodating the fastening rod 8 is hinged at the end of the second telescopic rod 10 .

When replacing the spare tire, first take out the spare tire, take out the jack and the tire removal wrench at the same time, use the tire removal wrench to loosen the bolts of the waste tire, and then the jack can be placed. Place the spare tire in the concave surface of the arc-shaped fixing seat 2 set on one side of the jack body 1. The tread of the spare tire just fits together with the inner surface of the arc-shaped fixing seat 2. At this time, set it on the arc-shaped fixing seat 2. The fixed piece 3 at the bottom is pressed on the bottom of the spare tire. Due to the weight of the spare tire itself, a relatively large friction force is formed between the fixed piece 3 and the spare tire, so that the spare tire and the arc-shaped fixing seat 2 can be fixed in a fixed position. Together.

Since the clamping rod 8 and the clamping cylinder 11 of the first clamping mechanism and the second clamping mechanism arranged at the ends of the first fixed chain 4 and the second fixed chain 5 are all hinged connection forms, they can be bent arbitrarily. Fold to an angle that can be inserted into the hub through hole of the spare tire. After being inserted into the through hole, adjust the angle of the clamping rod 8 and the clamping cylinder 11 so that it is in alignment with the first telescopic rod 7 and the second telescopic rod 10. In the vertical state, by twisting the first telescopic rod 7 and the second telescopic rod 10, the clamping rod 8 and the clamping cylinder 11 move upward relative to the first cylinder 6 and the second cylinder 9 respectively. When it is firmly tied to the tire, it can stop. At this time, the spare tire and the jack body are firmly bound together, and the jack can be inserted under the vehicle, and the jack can be raised to disassemble the waste tire.

When the waste tire is disassembled, the clamping rod 8 and the clamping cylinder 11 are moved downward relative to the first cylinder 6 and the second cylinder 9 by twisting the first telescopic rod 7 and the second telescopic rod 10, and the two fixed If the chain is loose, take out the clamping rod 8 and the clamping cylinder 11 from the through hole, separate the spare tire from the jack, and then place the waste tire on the arc-shaped fixing seat 2 in the same way, because the waste tire is a full-size tire , a full-size wheel hub is installed, so when using a fixed chain for fixing, it is necessary to first insert the clamping rod 8 into the clamping cylinder 11 to extend the length of the clamping rod 8 so that its length is greater than the distance between the two spokes. After the combination of the fixed rod 8 and the clamping tube 11 extends into the spoke, it can be clamped on the inner side of the two spokes, and the first telescopic rod 7 and the second telescopic rod 10 are adjusted again so that the two fixed chains are firmly bound on the tire. superior. At this moment, the waste tire and the jack body are firmly bound together, and the spare tire can be installed.

The utility model adopts the jack for replacing the spare tire of the automobile, which effectively utilizes the spare tire before the replacement and the waste tire after the replacement, and combines the jack body with the tire, so that the tire becomes a part of the jack base. With a large contact area, the stability of the jack is greatly enhanced without changing the volume of the jack, which avoids the situation of displacement or dumping during use, and ensures that people are in the process of replacing the spare tire. safety in.

The parts of the utility model that are not described in detail are the known techniques of those skilled in the art.

Claims (3)

1. a kind of automobile changes spare tyre jack, it is characterised in that：Including a jack body, in the bottom of jack body Side is provided with an arc fixed seat being engaged with the radian of tire, the concave surface of the arc fixed seat dorsad jack body, The fixed mechanism that fixed seat and tire are fixed together is provided with fixed seat.

2. a kind of automobile according to claim 1 changes spare tyre jack, it is characterised in that：The fixed mechanism includes It is hinged on the stator of arc fixed seat bottom.

3. a kind of automobile according to claim 1 and 2 changes spare tyre jack, it is characterised in that：The fixed mechanism Chain is fixed including being disposed on the first fixation chain and second at the top of arc fixed seat, the is provided with the end of the first fixation chain One clamping mechanism, first clamping mechanism includes female first cylinder of band for being connected to the first fixation chain end, The first expansion link is installed in the internal activity of the first cylinder, fixing bar is hinged with the end of the first expansion link, it is solid second The end for determining chain is provided with the second clamping mechanism, second clamping mechanism include one be connected to the second fixation chain end with interior Second cylinder of screw thread, the second expansion link is provided with the internal activity of the second cylinder, is hinged with the end of the second expansion link The fixing cylinder for fixing bar can be accommodated.