CN111267549A

CN111267549A - Portable tire nut loosening and tightening device

Info

Publication number: CN111267549A
Application number: CN202010095186.9A
Authority: CN
Inventors: 不公告发明人
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-02-14
Filing date: 2020-02-14
Publication date: 2020-06-12

Abstract

The invention discloses a portable tire nut tightener, which comprises a long sleeve and a torque adjusting structure, wherein the long sleeve is arranged on the long sleeve; the moment adjusting structure comprises a first shell, a second shell, a driving belt pulley, an intermediate belt pulley and a driven belt pulley; the middle belt pulley is provided with a first belt groove and a second belt groove which are arranged side by side along the axial direction; the working radius of the driven belt pulley is larger than that of the driving belt pulley; a first nut sleeve is arranged at the center of one side wheel surface of the driving belt pulley, a polygonal convex column is arranged at the center of the opposite other side wheel surface, and a polygonal concave hole which can be tightly matched with the polygonal convex column is formed at one end of the long sleeve; and a second nut sleeve is arranged at the center of the driven belt pulley. This portable tire nut loosening and tightening ware can realize spending less strength can be to the fixation nut on the tire not hard up and fastening, is fit for most driver friend and uses.

Description

Portable tire nut loosening and tightening device

Technical Field

The invention relates to a portable tire nut tightener.

Background

If automobile tires break down on the road, the spare tires generally need to be replaced. Before replacing the spare tire, the fixing nut on the tire needs to be disassembled. In general, a strong adult man needs a great deal of effort to loosen the fixing nut by using a long wrench and a long sleeve, but for the weak, the operation of loosening the fixing nut on the tire cannot be completed at all without equipment. In cities, the automobile repair path is more and is very convenient; however, if the system is used in the field of the wasteland or in remote rural mountainous areas, the time for waiting for repair is very long and the way is far. In view of the above, it is necessary to develop a portable tool to facilitate most people to turn the fixing nut on the wheel.

Disclosure of Invention

The invention aims to solve the technical problem of providing a portable tire nut loosening and tightening device, which can loosen and tighten a fixed nut on a tire with low effort and is suitable for most drivers.

The technical scheme of the invention is as follows: a portable tire nut tightener comprises a long sleeve and a torque adjusting structure; the moment adjusting structure comprises a first shell, a second shell, a driving belt pulley, an intermediate belt pulley and a driven belt pulley; the middle belt pulley is provided with a first belt groove and a second belt groove which are arranged side by side along the axial direction; one end of the first shell is rotationally connected with the driving belt pulley, and the other end of the first shell is rotationally connected with the middle belt pulley; one end of the second shell is rotationally connected with the middle belt pulley, and the other end of the second shell is rotationally connected with the driven belt pulley; the driving belt pulley is connected with a first belt groove belt of the intermediate belt pulley, and a second belt groove of the intermediate belt pulley is connected with the driven belt pulley; the working radius of the driven belt pulley is larger than that of the driving belt pulley;

the center of one side wheel surface of the driving belt pulley is provided with a first nut sleeve, the center of the opposite other side wheel surface of the driving belt pulley is provided with a polygonal convex column, the nut sleeve is coaxially and rotatably connected with the driving belt pulley, and the polygonal convex column is fixedly connected with the driving belt pulley or integrally formed with the driving belt pulley; one end of the long sleeve is provided with a polygonal concave hole which can be tightly matched with the polygonal convex column; a second nut sleeve is arranged at the center of the driven belt pulley and is fixedly connected with the driven belt pulley or integrally formed with the driven belt pulley; the first nut sleeve and the second nut sleeve are mounted on the same side.

Further: the first shell or the second shell is provided with a hanging structure, the hanging structure comprises a tension spring and an L-shaped hook, one end of the tension spring is fixedly connected with the first shell or the second shell, and the other end of the tension spring is fixedly connected with the L-shaped hook.

Further: and sawteeth are arranged on the transverse inner side surface of the L-shaped hook away from the tension spring.

Further: the working radius of the driven pulley is 2 to 3 times of the working radius of the driving pulley.

Further: the first shell is provided with a threaded telescopic rod, one end of the threaded telescopic rod is rotatably connected with the first shell, and the rod body of the threaded telescopic rod forms an inclination angle of 30 degrees with the first shell.

Further: the second shell is provided with a threaded telescopic rod, one end of the threaded telescopic rod is rotatably connected with the second shell, and the rod body of the threaded telescopic rod and the shell surface of the second shell form an inclination angle of 30 degrees.

The beneficial effect of this scheme: the invention discloses a portable tire nut tightener which mainly has the following functions:

1. the tire nut tightener comprises a long sleeve and a torque adjusting structure, wherein the torque adjusting structure comprises a driving belt pulley and a driven belt pulley which have different working radiuses, and the torque applied to the driving belt pulley by the long sleeve is acted and output to a tire nut through the driven belt pulley, so that the purpose of reducing the dismounting and tightening of a tire fixing nut is achieved; 2. the fixing mode of the torque adjusting structure and the tire is carried out through a first nut sleeve on the driving belt pulley and a second nut sleeve on the driven belt pulley, the torque adjusting structure is fixed on the side face of the tire through the first nut sleeve and the second nut sleeve, and meanwhile the first nut sleeve and the second nut sleeve are sleeved on the fixing nut to achieve positioning and fixing; 3. the second nut sleeve and the fixing nuts on the tire are positioned and aligned through the rotation of the first shell and the second shell, and specifically, the included angle between the first shell and the second shell is controlled through operation, so that the center distance between the first nut sleeve and the second nut sleeve is adjusted to be corresponding to the center distance between any two fixing nuts on the tire.

In the scheme, the torque adjusting structure is further optimized, and comprises a hanging structure, wherein the hanging structure is used for better fixing the torque adjusting structure on the side surface of the tire through an L-shaped hook and a tension spring; and the threaded support rod is further used for supporting and fixing the moment adjusting structure, so that the effect is obvious. In conclusion, the portable tire nut tightener in the scheme is simple in structure and convenient to operate, can loosen and tighten the fixing nut on the tire only by spending small force, and is suitable for vast drivers and friends to use in various application occasions.

Drawings

FIG. 1 is a schematic view of the overall installation of the torque adjustment structure of the present invention;

FIG. 2 is a schematic view of the structure of the driving pulley of the present invention;

FIG. 3 is a schematic view of the construction of the intermediate pulley of the present invention;

FIG. 4 is a schematic view of the construction of the driven pulley of the present invention;

FIG. 5 is a schematic structural view of an L-shaped hook according to the present invention.

Detailed Description

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

as shown in fig. 1, 2, 3, 4 and 5, the present invention discloses a portable tire nut tightener, which comprises a long sleeve 7 and a torque adjusting structure, wherein the torque adjusting structure comprises a first housing 5, a second housing 6, a driving pulley 1, an intermediate pulley 2, a driven pulley 3, a first nut sleeve 10 and a second nut sleeve 12. In the present case, the first nut sleeve 10 and the second nut sleeve 12 have the same shape and structure, but are different in the installation manner. It should be noted that the effective working radius of the driving pulley 1 in the present application should be smaller than the effective working radius of the driven pulley 3, that is, the function of increasing the torque is exerted. And for the intermediate pulley 2, two belt grooves are arranged side by side on the intermediate pulley 2, namely a first belt groove and a second belt groove.

As shown in fig. 1, a driving pulley 1 is rotatably connected to a left end of a first housing 5, an intermediate pulley 2 is rotatably connected to a right end of the first housing 5, and the driving pulley 1 and a first belt groove of a driven pulley 3 are connected by a belt 4. With respect to the second housing 6, as shown in fig. 1, the left end of the second housing 6 is also rotatably connected with the intermediate pulley 2, but in the preferred embodiment, the first housing 5 and the second housing 6 are not mounted together on one side of the intermediate pulley 2, but are mounted on two sides of the intermediate pulley 2, but this does not affect the whole function of the tire nut tensioner in this case. In this case, the right end of the second housing 6 is also rotatably connected to the driven pulley 3, and the second belt groove of the intermediate pulley 2 is connected to the driven pulley 3 via the belt 4. The above-mentioned structure realizes that when the driving pulley 1 rotates, the driving pulley 1 drives the intermediate pulley 2 to rotate through the belt 4, and the intermediate pulley 2 drives the driven pulley 3 to rotate through the belt 4. Since the effective working radius of the driving pulley 1 is smaller than that of the driven pulley 3, the above-mentioned process of driving the driven pulley 3 to rotate by the driving pulley 1 is also a process of substantially amplifying the moment.

As shown in fig. 2, the first nut bushing 10 is located at the center of the left tread of the drive pulley 1, and the first nut bushing 10 is coaxially and rotatably connected to the drive pulley 1. In this case, the first nut sleeve 10 and the second nut sleeve 12 are similar to a hollow structure of an inner hexagon. The existing tire fixing nuts are mostly cap type hexagonal nuts, therefore, in the present case, the first nut sleeve 10 and the second nut sleeve 12 are used for matching with the hexagonal nuts, the first nut sleeve 10 and the second nut sleeve 12 can be sleeved outside the fixing nuts along the axial direction of the fixing nuts, and simultaneously, the first nut sleeve 10 or the second nut sleeve 12 can be respectively and tightly matched with the fixing nuts, which is equivalent to the handle head part of the sleeve, because the sizes of the fixing nuts used by different types of automobiles in the prior art are different, the tire nut tighteners of different models can be designed and produced aiming at different automobiles when the first nut sleeve 10 and the second nut sleeve 12 in the present case are designed and produced, so as to match and use different automobiles. As shown in fig. 4, the second nut sleeve 12 is located at the center of one side of the driven pulley 3, but the second nut sleeve 12 is fixedly connected with the driven pulley 3, and in the preferred embodiment, the second nut sleeve is welded. Of course, an integral molding is also possible. In the present case, the first nut sleeve 10 and the second nut sleeve 12 must be installed on the same side, or in other words, on the same side, as regards the installation positions of the first nut sleeve 10 and the second nut sleeve 12, which will be explained in detail in the following working principle section.

As shown in fig. 2, a polygonal protruding column 11 is disposed at the center of the right side wheel surface of the driving pulley 1, the polygonal protruding column 11 is disposed coaxially with the driving pulley 1, and the polygonal protruding column 11 is welded to the wheel surface of the driving pulley 1 or connected thereto by a screw, which may be integrally formed. As shown in fig. 1, the lower end of the long sleeve 7 is provided with a polygonal concave hole, which is just matched with the polygonal convex column 11, so that the long sleeve 7 can be tightly sleeved outside the polygonal convex column 11 through the polygonal concave hole, and further, torque transmission can be performed through the long sleeve 7. The basic working principle of the tire nut tightener in the scheme is as follows: in order to further facilitate the fixation of the tire nut tensioner, as shown in fig. 1, the second housing 6 is further provided with a hanging structure, the hanging structure comprises a tension spring 8 and an L-shaped hook 9, the L-shaped hook 9 is provided with a long side and a short side, one end of the tension spring 8 is fixed with the second housing 6, and the other end of the tension spring 8 is fixed with the end of the short side of the L-shaped hook 9.

When the method is concretely implemented, the first nut sleeve 10 on the driving belt pulley 1 is aligned to one of the fixing nuts on the wheel, then the included angle between the first shell 5 and the second shell 6 is adjusted in a rotating mode, the center distance between the first nut sleeve 10 and the second nut sleeve 12 is adjusted, the center distance between the first nut sleeve 10 and the second nut sleeve 12 is enabled to be equal to the center distance between any two fixing nuts on the tire, and then the first nut sleeve 10 and the second nut sleeve 12 are respectively sleeved on any two fixing nuts on the wheel. The driving belt pulley 1 and the driven belt pulley 3 are slightly knocked and flapped along the direction towards the wheel, so that the first nut sleeve 10 and the second nut sleeve 12 are sleeved outside the nut on the wheel, and the torque adjusting structure in the scheme is fixed on the side face of the wheel. Then the long sleeve 7 is sleeved outside the polygonal convex column 11 through the polygonal concave hole. At this time, pressure is applied to the long sleeve 7, torque applied to the long sleeve 7 is amplified by the driving pulley 1 and the driven pulley 3, and then the torque is transmitted to the fixing nut on the wheel through the second nut sleeve 12, so that loosening and fastening of the fixing nut on the wheel are completed.

In the above embodiment, the second nut sleeve 12 substantially provides a supporting point for the torque adjusting structure, and the first housing 5 and the second housing 6 are matched to adjust the center distance between the first nut sleeve 10 and the second nut sleeve 12, so that the intermediate pulley 2 for transition is provided in this case, which is the function of the intermediate pulley 2. In practice, the long side of the L-shaped hook 9 can be attached to the tread of the tire, which provides the following advantages: under the action of the tension spring 8, the moment adjusting structure is further fixed on the side surface of the tire. For the hanging structure, the number of the hanging structures is not the only one in the present case, and if the hanging structures can be arranged on both the first shell 5 and the second shell 6, the number and the mode of the hanging structures are diversified, but the more the hanging structures are, the better the hanging structures are, generally, about 1 to 4 hanging structures are. In order to enhance the friction between the L-shaped hook 9 and the tire, the side of the L-shaped hook 9 near the tire may be provided with corrugations or serrations 91, as shown in fig. 5, in this case, the inner side of the L-shaped hook 9 in the transverse direction is provided with serrations 91. The transverse inner side surface, namely the long edge of the L-shaped hook 9 is in contact with the tire during working.

Generally, the torque adjusting structure needs to amplify the torque transmitted from the long sleeve 7 to the driving pulley 1 by 2 to 3 times, because the radius of the driven pulley 3 will increase continuously as the amplification factor increases. In the case, the optimal selection is 2 times, which can meet the physical requirements of most weak people. In order to further facilitate the installation and fix the torque adjusting structure, in the preferred embodiment, a threaded telescopic rod 13 is further disposed on the second housing 6, one end of the threaded telescopic rod 13 is rotatably connected to the first housing 5 or the second housing 6, and a rod body of the threaded telescopic rod 13 forms an inclination angle of 30 ° with a shell surface of the first housing 5 or the second housing 6. When the moment adjusting structure is installed on the side surface of the tire, the second shell 6 can be supported by the threaded telescopic rod 13; after the moment adjusting structure is completed, the second shell 6 can be fixed by adjusting the length of the threaded telescopic rod 13, and the second shell 6 is supported on the ground by the threaded telescopic rod 13. The same as the hanging structure is that a threaded telescopic rod 13 can be arranged on the first shell 5, the structure and the function are the same, and the fixed type torque adjusting structure is similar to a foot rest on a single vehicle or two-path motorcycles.

The above description is only exemplary of the present invention and should not be taken as limiting, and any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A portable tire nut tensioner, characterized by: comprises a long sleeve (7) and a moment adjusting structure; the moment adjusting structure comprises a first shell (5), a second shell (6), a driving belt pulley (1), an intermediate belt pulley (2) and a driven belt pulley (3); the middle belt pulley (2) is provided with a first belt groove and a second belt groove which are arranged side by side along the axial direction; one end of the first shell (5) is rotationally connected with the driving belt pulley (1), and the other end of the first shell (5) is rotationally connected with the middle belt pulley (2); one end of the second shell (6) is rotationally connected with the middle belt pulley (2), and the other end of the second shell (6) is rotationally connected with the driven belt pulley (3); the driving belt pulley (1) is connected with a first belt groove belt of the middle belt pulley (2), and a second belt groove of the middle belt pulley (2) is connected with the driven belt pulley (3) through a belt; the working radius of the driven belt pulley (3) is larger than that of the driving belt pulley (1);

a first nut sleeve (10) is arranged at the center of one side wheel surface of the driving belt pulley, a polygonal convex column (11) is arranged at the center of the opposite other side wheel surface, the nut sleeve is coaxially and rotatably connected with the driving belt pulley (1), and the polygonal convex column (11) is fixedly connected with the driving belt pulley (1) or integrally formed; one end of the long sleeve (7) is provided with a polygonal concave hole which can be tightly matched with the polygonal convex column (11); a second nut sleeve (12) is arranged at the center of the driven belt pulley (3), and the second nut sleeve (12) is fixedly connected with the driven belt pulley (3) or integrally formed; the first nut sleeve (10) and the second nut sleeve (12) are mounted on the same side.

2. A portable tire nut tensioner as claimed in claim 1, wherein: be equipped with suspended structure on first casing (5) or second casing (6), this suspended structure includes extension spring (8) and L shape couple (9), the one end and first casing (5) or second casing (6) fixed connection of extension spring (8), the other end and the L shape couple (9) fixed connection of extension spring (8).

3. A portable tire nut tensioner as claimed in claim 2, wherein: sawteeth (91) are arranged on the transverse inner side surface of the L-shaped hook (9) far away from the tension spring (8).

4. A portable tire nut tensioner according to any one of claims 1 to 3, wherein: the working radius of the driven pulley (3) is 2 to 3 times of the working radius of the driving pulley (1).

5. A portable tire nut tensioner according to claim 4, wherein: the first shell (5) is provided with a threaded telescopic rod (13), one end of the threaded telescopic rod (13) is rotatably connected with the first shell (5), and the rod body of the threaded telescopic rod (13) forms an inclination angle of 30 degrees with the first shell (5).

6. A portable tire nut tensioner according to claim 4, wherein: the second shell (6) is provided with a threaded telescopic rod (13), one end of the threaded telescopic rod (13) is rotatably connected with the second shell (6), and the rod body of the threaded telescopic rod (13) and the shell surface of the second shell (6) form an inclination angle of 30 degrees.