CN212706584U

CN212706584U - Labor-saving tire bolt dismounting tool

Info

Publication number: CN212706584U
Application number: CN202021702024.9U
Authority: CN
Inventors: 毛丽娜
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2021-03-16
Anticipated expiration: 2030-08-14

Abstract

The utility model discloses a laborsaving tire bolt assembly and disassembly tools relates to the auto repair tools field, has solved the hard problem of automobile tire bolt dismouting among the prior art, and its technical essential is: the transmission rod is provided with a second bevel gear at one end close to the first bevel gear, the second bevel gear is meshed with the first bevel gear, the equivalent tooth number of the second bevel gear is smaller than that of the first bevel gear, a worm wheel is arranged at one end of the transmission rod, the worm wheel is meshed with a worm arranged in the limiting shell, the worm is fixedly connected with a torsion ring at the outer side of the limiting shell, and a limiting unit is further arranged on the limiting shell; the utility model discloses it is laborsaving to dismantle the bolt, and the bolt dismantles conveniently, simultaneously the utility model has the advantages of small, be convenient for accomodate.

Description

Labor-saving tire bolt dismounting tool

Technical Field

The utility model relates to an auto repair tools field especially relates to a laborsaving tire bolt assembly and disassembly tools.

Background

The automobile is a non-rail-bearing vehicle which is driven by power and provided with 4 wheels or more than 4 wheels, the popularization rate of the automobile is higher and higher along with the improvement of the living standard, and the automobile occasionally encounters some faults in the using process of the automobile, for example, the automobile tires are punctured.

The spare tire is generally equipped with to the car in the process of leaving the factory to prevent that automobile tire from being punctured in the driving process, when changing the spare tire, need use bolt assembly and disassembly tools to dismantle the bolt of discourse and adjustment, automobile tire assembly and disassembly tools among the prior art generally use box spanner, because the restriction of space, box spanner length is shorter in the automobile vehicle-mounted tool, however, automobile tire bolt pretightning force is great, comparatively hard when dismouting automobile tire bolt, therefore, we have proposed a laborsaving tire bolt assembly and disassembly tools.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to above-mentioned defect, provide a laborsaving tire bolt assembly and disassembly tools to solve among the prior art the hard problem of automobile tire bolt dismouting.

In order to achieve the above object, the utility model provides a following technical scheme:

a labor-saving tire bolt dismounting tool comprises a first sleeve joint which is arranged on a limiting shell, the first sleeve joint can rotate around the axis of the first sleeve joint on the limiting shell, the first bevel gear is fixedly connected in the limiting shell, a transmission rod is further arranged in the limiting shell and can rotate around the axis of the first sleeve joint, a second bevel gear is arranged at one end, close to the first bevel gear, of the transmission rod and is meshed with the first bevel gear, and the equivalent tooth number of the second bevel gear is smaller than that of the first bevel gear, a worm wheel is arranged at one end of the transmission rod far away from the second bevel gear, the worm wheel is meshed with a worm arranged in the limiting shell, a torsion ring used for the force applying rod to penetrate is fixedly connected to the outer side of the limiting shell of the worm, and a limiting unit used for fixing the limiting shell on the tire through other bolts fixed on the tire is further arranged on the limiting shell.

As the utility model discloses a further scheme is equipped with the fixed unit of sleeve on the first sleeve joint, the fixed unit of sleeve includes the steel ball, the steel ball is established downthehole at the steel ball of first sleeve joint side, the steel ball hole is the blind hole, and the oral area in steel ball hole restraints the mouth setting, is equipped with the spring between steel ball and the steel ball hole bottom.

As a further scheme of the present invention, the limiting unit comprises a limiting ring and a second sleeve joint, the limiting ring is a square ring shape, the limiting ring is sleeved on the limiting shell, and the limiting ring is further provided with an adjusting screw for fixing the limiting ring on the limiting shell; the second sleeve joint is the same as the first sleeve joint in structure, and the second sleeve joint is fixedly connected to the limiting shell.

As a further scheme of the utility model, the both ends of transfer line are equipped with the spline, all are equipped with the spline in second bevel gear and the worm wheel, and second bevel gear and worm wheel pass through interference fit and are connected with the transfer line.

As a further scheme of the utility model, spacing shell includes first shell and second shell, for detachable connection between first shell and the second shell, all is equipped with the stopper on first shell and the second shell, be equipped with the half slot on the stopper.

To sum up, compared with the prior art, the utility model has the following beneficial effects:

the utility model discloses a bevel gear transmission is connected and worm gear drive mechanism transmits the power of dismantling, reaches laborsaving purpose, for prior art, the utility model discloses it is laborsaving to dismantle the bolt, and the bolt dismantles conveniently, simultaneously the utility model has the advantages of small, be convenient for accomodate.

Drawings

Fig. 1 is a schematic structural view of a labor-saving tire bolt dismounting tool.

FIG. 2 is a top view of the labor-saving tire bolt removal tool.

Fig. 3 is a schematic structural view of a limiting unit in the labor-saving tire bolt dismounting tool.

Reference numerals: 1-a limiting shell, 11-a first shell, 12-a second shell, 13-a limiting block, 2-a first sleeve joint, 3-a first bevel gear, 4-a transmission rod, 5-a second bevel gear, 6-a worm gear, 7-a worm, 8-a torsion ring, 9-a limiting unit, 91-a limiting ring and 92-a second sleeve joint.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

As shown in fig. 1-2, a labor-saving tire bolt dismounting tool comprises a first sleeve joint 2, the first sleeve joint 2 is mounted on a limiting shell 1, the first sleeve joint 2 can rotate around the axis of the first sleeve joint 2 on the limiting shell 1, the first sleeve joint 2 is fixedly connected with a first bevel gear 3 in the limiting shell 1, a transmission rod 4 is further mounted in the limiting shell 1, the transmission rod 4 can rotate around the axis of the first sleeve joint, one end of the transmission rod 4 close to the first bevel gear 3 is provided with a second bevel gear 5, the second bevel gear 5 is meshed with the first bevel gear 3, the equivalent number of teeth of the second bevel gear 5 is smaller than that of the first bevel gear 3, one end of the transmission rod 4 far away from the second bevel gear 5 is provided with a worm wheel 6, the worm wheel 6 is meshed with a worm 7 arranged in the limiting shell 1, the outer side of the limiting shell 1 is fixedly connected with a torsion ring 8, the limiting shell 1 is also provided with a limiting unit 9 which enables the limiting shell 1 to be fixed on the tire through other bolts fixed on the tire; because the worm gear and the worm belong to a speed reducing structure, the speed of the worm gear is less than that of the worm, when the worm gear does work outwards according to a calculation formula of power, the force required by the worm gear to overcome the load is less than that of the worm gear, the equivalent tooth number of the second bevel gear 5 is less than that of the first bevel gear 3, and the rotating speed of the first bevel gear 3 is less than that of the second bevel gear 5, the force required by the second bevel gear 5 to drive the first bevel gear 3 to overcome the load is less than that of the first bevel gear 3, so that when the torque ring 8 drives the bolt to rotate through the worm 7, the worm gear 6, the transmission rod 4, the second bevel gear 5, the first bevel gear 3 and the first sleeve joint 2, the force of the torque ring 8 is less than the pre-tightening force of the;

in some examples, the limiting shell 1 comprises a first shell 11 and a second shell 12, the first shell 11 and the second shell 12 are connected through a screw, a limiting block 13 is arranged on each of the first shell 11 and the second shell 12, a semicircular groove is arranged on each limiting block 13, and each limiting block 13 is used for limiting the transmission rod 4, so that the transmission rod 4 is prevented from moving in the shell 1;

the first sleeve joint 2 is a square head, a sleeve fixing unit is arranged on the first sleeve joint 2 and comprises steel balls, the steel balls are arranged in steel ball holes in the side face of the first sleeve joint 2, the steel ball holes are blind holes, opening parts of the steel ball holes are arranged in a binding mode, and springs are arranged between the steel balls and the bottoms of the steel ball holes; a rotating shaft is arranged on the first sleeve joint 2, and the first bevel gear 3 is fixedly connected to the rotating shaft;

the transmission rod 4 is a round rod, and the transmission rod 4 is arranged in a semicircular groove on the limiting block 13;

in some examples, both ends of the transmission rod 4 are provided with splines, the second bevel gear 5 and the worm wheel 6 are both provided with splines, and the second bevel gear 5 and the worm wheel 6 are connected with the transmission rod 4 through interference fit; when the worm wheel 6 is driven to rotate by the worm 7, the worm wheel 6 drives the second bevel gear 5 to rotate through the transmission rod 4, so that the second bevel gear 5 can drive the first bevel gear 3 to rotate;

the two ends of the worm 7 are mounted in the limiting shell 1 through bearings, the worm 7 is provided with a square shaft neck on the outer side of the limiting shell 1, the torque ring 8 is a circular ring, a fixed cylinder is arranged on the torque ring 8, in some examples, the fixed cylinder is fixedly connected with the worm 7 through interference fit, when the tire bolt is disassembled, the stress application rod penetrates through the torque ring 8 and rotates the torque ring 8 by taking the axis of the torque ring 8 as a circle center, so that the torque ring 8 drives the worm 7 to rotate, the worm 7 drives the worm wheel 6 to rotate when rotating, and further the worm wheel 6 drives the tire bolt to rotate through the transmission rod 4, the second bevel gear 5, the first bevel gear 3 and the first sleeve joint 2;

as shown in fig. 3, the limiting unit 9 includes a limiting ring 91 and a second socket joint 92, the limiting ring 91 is in a square ring shape, the limiting ring 91 is sleeved on the limiting shell 1, an adjusting screw for fixing the limiting ring 91 on the limiting shell 1 is further provided on the limiting ring 91, when the adjusting screw is pre-tightened, the adjusting screw and the limiting unit 9 cooperate to clamp the limiting shell 1, so as to prevent the limiting shell 1 from moving on the limiting shell 9; the second sleeve joint 92 has the same structure as the first sleeve joint 2, and the second sleeve joint 92 is fixedly connected to the position limiting shell 1.

To sum up, the utility model discloses a theory of operation is:

when the tire bolt limiting device is used, sleeves are sleeved on the limiting ring 91 and the first sleeve joint 2, the limiting ring 91 and the sleeves on the first sleeve joint 2 are inserted on a tire bolt, when the first sleeve joint 2 is rotated, the limiting ring 91 is fixed on the tire bolt, so that the limiting shell 1 is kept stable and cannot rotate along with the rotation of the tire bolt of the first sleeve joint 2, the stress applying rod penetrates through the torque ring 8 and rotates the torque ring 8 by taking the axis of the torque ring 8 as the circle center, the torque ring 8 rotates under the action of the stress applying rod, the torque ring 8 drives the worm 7 to rotate, the worm 7 drives the worm wheel 6 to rotate, the worm wheel 6 drives the second bevel gear 5 to rotate through the transmission rod 4, the second bevel gear 5 drives the first bevel gear 3 to rotate, and the first bevel gear 3 drives the tire bolt to rotate through the first sleeve joint 2 and the sleeves;

because the worm gear and the worm belong to a speed reducing structure, the speed of the worm gear is less than that of the worm, when the worm gear does work outwards according to a calculation formula of power, the force required by the worm gear to overcome the load is less than that of the worm gear, the equivalent tooth number of the second bevel gear 5 is less than that of the first bevel gear 3, and the rotating speed of the first bevel gear 3 is less than that of the second bevel gear 5, the force required by the second bevel gear 5 to drive the first bevel gear 3 to overcome the load is less than that of the first bevel gear 3, so that when the torque ring 8 drives the bolt to rotate through the worm 7, the worm gear 6, the transmission rod 4, the second bevel gear 5, the first bevel gear 3 and the first sleeve joint 2, the force of the torque ring 8 is less than the pre-tightening force of the;

the limiting unit 9 can fix the limiting shell 1 on the tire, so that a user can conveniently disassemble and assemble the bolt.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A labor-saving tire bolt dismounting tool comprises a first sleeve joint (2), wherein the first sleeve joint (2) is arranged on a limiting shell (1), and the first sleeve joint (2) can rotate around the axis of the first sleeve joint (1) on the limiting shell (1), and is characterized in that the first sleeve joint (2) is fixedly connected with a first bevel gear (3) in the limiting shell (1), a transmission rod (4) is also arranged in the limiting shell (1), the transmission rod (4) can rotate around the axis of the first sleeve joint, one end, close to the first bevel gear (3), of the transmission rod (4) is provided with a second bevel gear (5), the second bevel gear (5) is meshed with the first bevel gear (3), the equivalent tooth number of the second bevel gear (5) is smaller than that of the first bevel gear (3), one end, far away from the second bevel gear (5), of the transmission rod (4) is provided with a worm wheel (6, the worm wheel (6) is meshed with a worm (7) arranged in the limiting shell (1), the worm (7) is fixedly connected with a torsion ring (8) used for a force application rod to penetrate through at the outer side of the limiting shell (1), and a limiting unit (9) used for fixing the limiting shell (1) on a tire through other bolts fixed on the tire is further arranged on the limiting shell (1).

2. The labor-saving tire bolt dismounting tool according to claim 1, wherein the first socket joint (2) is provided with a socket fixing unit, the socket fixing unit comprises a steel ball, the steel ball is arranged in a steel ball hole on the side surface of the first socket joint (2), the steel ball hole is a blind hole, a mouth portion of the steel ball hole is arranged in a binding manner, and a spring is arranged between the steel ball and the bottom of the steel ball hole.

3. The labor-saving tire bolt dismounting tool according to claim 2, wherein the limiting unit (9) comprises a limiting ring (91) and a second sleeve joint (92), the limiting ring (91) is a square ring, the limiting ring (91) is sleeved on the limiting shell (1), and the limiting ring (91) is further provided with an adjusting screw for fixing the limiting ring (91) on the limiting shell (1); the second sleeve joint (92) has the same structure as the first sleeve joint (2), and the second sleeve joint (92) is fixedly connected to the limiting shell (1).

4. The labor-saving tire bolt dismounting tool according to claim 1, wherein splines are arranged at two ends of the transmission rod (4), splines are arranged in the second bevel gear (5) and the worm wheel (6), and the second bevel gear (5) and the worm wheel (6) are connected with the transmission rod (4) through interference fit.

5. The effort-saving tire bolt dismounting tool according to any one of claims 1-4, wherein the limiting shell (1) comprises a first shell (11) and a second shell (12), the first shell (11) and the second shell (12) are detachably connected, limiting blocks (13) are arranged on the first shell (11) and the second shell (12), and semicircular grooves are arranged on the limiting blocks (13).