CN111231575A

CN111231575A - Portable tire mounting and dismounting device

Info

Publication number: CN111231575A
Application number: CN202010095274.9A
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: 2020-06-05

Abstract

The invention discloses a portable tire mounting and dismounting device which comprises a long sleeve, a moment adjusting structure and a tire transportation frame, 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 working radius of the driven belt pulley is larger than that of the driving belt pulley; the center of the wheel surface of the driving belt pulley is provided with a V-shaped suspension block and a polygonal convex column, two ends of the V-shaped suspension block, which are far away from the driving belt pulley, are provided with U-shaped reverse bending parts, the center of the driven belt pulley is provided with a nut sleeve, and the nut sleeve is fixedly connected with the driven belt pulley or integrally formed with the driven belt pulley; the tire transport frame is of a rectangular frame structure and is formed by connecting two adjusting rods and two horizontal rods; and the adjusting rod is fixedly provided with a universal wheel at the end close to the horizontal rod. The operation of replacing the spare tire by the mounting and dismounting device is labor-saving, and is suitable for most of drivers and friends including weak people.

Description

Portable tire mounting and dismounting device

Technical Field

The invention relates to a portable tire mounting and dismounting device.

Background

If automobile tires break down on the road, the spare tires generally need to be replaced. In general, even a strong adult man needs to take a lot of effort to loosen and fasten the fixing nut of the tire, and meanwhile, the whole damaged tire is removed to replace the spare tire, which is very laborious. For the weak, the above-mentioned operation of replacing the spare tire cannot be completed at all without the aid of 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.

Disclosure of Invention

The invention aims to solve the technical problem of providing a portable tire mounting and dismounting device, which is used for replacing a spare tire, is labor-saving, is suitable for most drivers and is also suitable for weak people.

The technical scheme of the invention is as follows: a portable tire mounting and dismounting device comprises a long sleeve, a moment adjusting structure and a tire transportation frame; the moment adjusting structure comprises a first shell, a second shell, a driving belt pulley, an intermediate belt pulley and a driven belt pulley; a first belt groove and a second belt groove which are coaxial and side by side are formed in the middle belt pulley; 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 the wheel surface of the driving belt pulley is provided with a V-shaped suspension block and a polygonal convex column, the included angle part of the V-shaped suspension block is coaxially and rotatably connected with the driving belt pulley through a pin shaft, and a gap is reserved between the included angle part of the V-shaped suspension block and the driving wheel; two ends of the V-shaped suspension block, which are far away from the driving belt pulley, are provided with U-shaped reverse bending parts, and the U-shaped reverse bending parts are vertical to the wheel surface of the driving belt pulley; the polygonal convex column is fixedly connected with the driving belt pulley or integrally formed; one end of the long sleeve is provided with a polygonal concave hole which can be tightly matched with the polygonal convex column; the center of the driven belt pulley is provided with a nut sleeve, and the nut sleeve is fixedly connected with the driven belt pulley or integrally formed;

the tire transport frame is of a rectangular frame structure and is formed by connecting two adjusting rods and two horizontal rods; the two horizontal rods correspond to two long sides of the rectangular frame structure, and the two horizontal rods correspond to two short sides of the rectangular frame structure; the adjusting rod comprises a thin rod and a thick rod which are coaxially arranged, the thick rod is provided with an adjusting hole for the thin rod to be inserted into along the axial direction, the thick rod is provided with a positioning hole along the radial direction, the positioning hole is internally connected with a locking screw rod in a threaded manner, and the top end of the locking screw rod extends into the adjusting hole; and the adjusting rod is fixedly provided with a universal wheel at the end close to the horizontal rod.

Further: the horizontal rod is a threaded telescopic rod.

Further: the two horizontal rods are rotatably connected with the two corresponding adjusting rods.

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

Further: the adjusting rod comprises two thin rods and a thick rod, and adjusting holes formed in the thick rod penetrate through the thick rod.

The beneficial effect of this scheme: the invention discloses a portable tire mounting and dismounting device which comprises a long sleeve, a moment adjusting structure and a tire transport frame, wherein the three parts are independently and separately matched for use, so that the mounting and dismounting device is conveniently stored and arranged in a trunk of an automobile, and the integral volume of the mounting and dismounting device is reduced so as to be convenient to carry.

The long sleeve of the mounting and dismounting device is mainly used for applying artificial power; the moment adjusting structure is used for loosening and fastening the fixing nut of the tire, and the tire transportation frame is used for supporting and transporting the tire. The three parts are mutually matched together, so that the purpose of replacing the tire and saving labor can be achieved. The technical idea is as follows: it is considered that an external torque is applied to the long sleeve, and then the torque of the long sleeve is multiplied by the torque adjusting mechanism and the tire is supported by the tire transporting frame. The mode of moment adjustment mechanism's realization moment method is then gone on through the effective working radius change between drive pulley and the driven pulley, and V-arrangement hangs soon then with the fine fixing of moment adjustment structure on the wheel face of tire, mutually rotation cooperation between first casing and the second casing, accomplishes location and alignment between driven pulley and the fixation nut, and consequently middle belt pulley just indispensable provides the transition strong point for first casing and second casing.

Through the setting, the ann's dismouting is put the group and has been reached the purpose of using manpower sparingly in the present case, and simple structure need not external power moreover, and the less strength of cost can reach four two and dial very heavy effects, accomplishes the change at automobile tire, and is very practical.

Aiming at the structure, the invention is further improved, for example, a threaded telescopic rod is added on the first shell or the second shell, or a horizontal rod is optimized to be a threaded telescopic structure, and the like, so that the function diversification of the mounting and dismounting device in the scheme is enhanced, the adaptability of the device is enhanced, and for example, the tire transportation frame can meet the requirements of tires with various widths such as a pick-up truck, an off-road vehicle, a car and the like by optimizing the horizontal rod. It should be noted that the adjusting rod of the tire transportation frame should have the function of stretching and contracting and waiting to be locked, and the length of the adjusting rod is changed, so that the contact position of the horizontal rod and the tire is also changed substantially, and then the tire can be placed on the tire transportation frame without holding up the tire, thereby saving physical strength.

Drawings

FIG. 1 is a schematic view of the overall structure of the tire in the present invention;

FIG. 2 is a schematic view of the overall structure of the torque adjusting mechanism according to the present invention;

FIG. 3 is a schematic view of the mounting structure of the driving pulley and the V-shaped suspension block in the present invention;

FIG. 4 is a schematic view of an installation structure of the intermediate pulley in the present invention;

FIG. 5 is a schematic view of the construction of the driven pulley of the present invention;

FIG. 6 is a schematic view of the structure of the V-shaped suspension block of the present invention;

FIG. 7 is a schematic side view of a tire carrier of the present invention;

fig. 8 is a schematic plan view of the tire carrier of 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, 5, 6, 7 and 8, the present invention discloses a portable tire mounting and demounting device including an elongated sleeve 4, a torque adjusting structure including a first housing 51, a second housing 52, a driving pulley 7, an intermediate pulley 8, a driven pulley 9, and a nut housing 13, and a tire carrier. It should be noted that the effective working radius of the driving pulley 7 in the present case should be smaller than that of the driven pulley 9, that is, the function of increasing the torque is exerted. In the intermediate pulley 8, as shown in fig. 4, two belt grooves, i.e., a first belt groove and a second belt groove, are provided in parallel in the intermediate pulley 8.

As shown in fig. 2, the driving pulley 7 is rotatably connected to the left end of the first housing 51, the intermediate pulley 8 is rotatably connected to the right end of the first housing 51, and the driving pulley 7 and the first belt groove of the driven pulley 9 are connected by a belt. With respect to the second housing 52, as shown in fig. 2, the left end of the second housing 52 is also rotatably connected to the intermediate pulley 8, but in the preferred embodiment, the first housing 51 and the second housing 52 are not installed together on one side of the intermediate pulley 8, but are installed on both sides of the intermediate pulley 8, and both structures can achieve the object of the present invention. In this case, the right end of the second housing 52 is also rotatably connected to the driven pulley 9, and the second belt groove of the intermediate pulley 8 is connected to the driven pulley 9 via a belt. With the above-described structure, when the drive pulley 7 is rotated, the drive pulley 7 drives the intermediate pulley 8 to rotate by the belt, and the intermediate pulley 8 drives the driven pulley 9 to rotate by the belt. Since the effective working radius of the driving pulley 7 is smaller than that of the driven pulley 9, the above-mentioned process of driving the driven pulley 9 by the driving pulley 7 to rotate is also a process of substantially amplifying the moment.

As shown in fig. 5, in the present case, the nut sleeve 13 has a structure similar to a hollow structure of an inner hexagon. The fixing nut 2 of the existing tire 1 is mostly a cap type hexagon nut, therefore, in the present case, the nut sleeve 13 is used for matching with the fixing nut 2, the nut sleeve 13 can be sleeved outside the fixing nut 2 along the axial direction of the fixing nut 2, and meanwhile, the nut sleeve 13 can be tightly matched with the fixing nut 2, which is equivalent to the handle head part of the sleeve. Because the sizes of the fixing nuts 2 used by different types of automobiles in the prior art are different, the nut sleeve 13 in the scheme can be designed and produced aiming at different automobiles to match different automobiles in different models when being designed and produced. As shown in fig. 2 and 5, the nut sleeve 13 is located at the center of one side wheel surface of the driven pulley 9, and the nut sleeve 13 is fixedly connected with the driven pulley 9, and in the preferred embodiment, welded. Of course, an integral molding is also possible.

As shown in fig. 1 and 3, a V-shaped suspension block 12 and a polygonal convex column 3 are arranged at the center of the wheel surface of the driving pulley 7, an included angle portion 122 of the V-shaped suspension block 12 is coaxially and rotatably connected with the driving pulley 7 through a pin shaft 11, a gap is formed between the included angle portion 122 of the V-shaped suspension block 12 and the driving wheel, and the V-shaped suspension block 12 can reciprocate along the axial direction of the pin shaft 11. As shown in fig. 7, both ends of the V-shaped suspension block 12 remote from the drive pulley 7 are formed with U-shaped turnbacks 121, and the U-shaped turnbacks 121 are perpendicular to the sheave surface of the drive pulley 7. The V-shaped suspension block 12 is mainly used for fixing the position of the driving pulley 7 and also for suspension support of the driving pulley 7. Thus, the U-turn 121 of the V-shaped suspension 12 in this case is just matched to the cross-section of the tire 1, but it promotes the stability of the VV-shaped suspension 12 on the tread of the tire 1 of the vehicle. As shown in fig. 3, the polygonal pillar 3 is coaxially disposed with the driving pulley 7, and the polygonal pillar 3 is welded to the wheel surface of the driving pulley 7 or connected thereto by a screw, but may be integrally formed.

As shown in fig. 1 and 2, the lower end of the long sleeve 4 is provided with a polygonal concave hole, which is just matched with the polygonal convex column 3, so that the long sleeve 4 can be closely sleeved outside the polygonal convex column through the polygonal concave hole, and then the torque transmission can be performed through the long sleeve 4. As shown in fig. 7 and 8, the tire transport frame has a rectangular frame structure, and includes two adjusting rods and two horizontal rods 18; the two adjusting rods correspond to two long sides of the rectangular frame structure, and the two horizontal rods 18 correspond to two short sides of the rectangular frame structure; the adjusting rod comprises a thin rod 14 and a thick rod 15 which are coaxially arranged, the thick rod 15 is provided with an adjusting hole for the thin rod 14 to insert in along the axial direction, the thick rod 15 is provided with a positioning hole along the radial direction, the positioning hole is connected with a locking screw rod 16 in a threaded manner, and the top end of the locking screw rod 16 extends into the adjusting hole; the adjusting rod is fixedly provided with a universal wheel 17 at the end close to the horizontal rod 18. Specifically, the adjusting rod comprises two thin rods 14 and a thick rod 15, and an adjusting hole formed in the thick rod 15 penetrates through the thick rod 15. As shown in FIG. 8, the advantage of this arrangement is that, in the case of satisfying the overall length of the tire transportation frame, the lengths of the thin rods 14 and the thick rods 15 are shortened, the tire transportation frame is more convenient to store and arrange, and the occupied vehicle space is as small as possible.

The working principle of the scheme is as follows: the present invention specifically detaches and mounts the tire 1 in two parts. When the tire 1 is disassembled, the moment adjusting structure in the present case is firstly placed on the tire 1, specifically, the V-shaped suspension block 12 is tightly suspended on the wheel surface of the tire 1, then the first shell 51 and the second shell 52 are rotated to adjust the included angle between the first shell 51 and the second shell 52, so that the nut sleeve 13 on the driven pulley 9 is aligned with the nut of the tire 1, then the driven pulley 9 is pushed towards the tire 1, so that the driving pulley 7, the intermediate pulley 8 and the driven pulley 9 are simultaneously moved towards the tire 1 along the pin shaft 11, and the nut sleeve 13 is sleeved on the corresponding fixing nut 2. Then the long sleeve 4 is sleeved outside the polygonal convex column 3 through the polygonal concave hole. At this time, pressure is applied to the long sleeve 4, the torque applied to the long sleeve 4 is amplified by the driving pulley 7 and the driven pulley 9, and then the torque is transmitted to the fixing nut 2 on the wheel through the second nut sleeve 13, thereby completing the loosening of the fixing nut 2.

For the use of the tire transport frame, the tire transport frame is firstly arranged at the bottom of the tire 1, the tire 1 is enabled to be aligned to the center of the rectangular frame structure, then the locking screw 16 is loosened, the thin rod 14 is inserted into the length of the adjusting hole of the thick rod 15, the adjusting rod is further gradually shortened, and the two horizontal rods 18 are enabled to be respectively abutted against the wheel surface of the tire 1. After the fixing nut 2 finishes the disassembly, the tire transportation frame is pushed to the outside of the tire 1, and then the disassembly and the transportation of the tire 1 are finished.

For the installation of the tire 1, the installation process of the tire 1 is similar to the disassembly process of the tire 1, the positioning and fixing of the tire 1 are completed through the tire transport frame, and then the screwing and locking of the fixing nut 2 are completed by using the torque adjusting structure. Since the processes are substantially the same, the description is omitted.

In the above specific implementation process, in order to further reduce the working strength of replacing the tire 1, in the optimized scheme, two ends of the horizontal rods 18 are respectively rotatably connected with the adjusting rods, and the two horizontal rods 18 are both rotatably connected with the two corresponding adjusting rods. The advantages of such an arrangement are: when the tire 1 is arranged on the tire transport frame, the tire 1 can be easily rotated through the horizontal rod 18, so that the rotation positioning of the tire 1 and the wheel axle is facilitated, and the rotation positioning operation of the nut of the tire 1 is also facilitated. Because the tire transport frame in this case can be used to fixed, transportation and the location of tire 1, in order to expand its service function, the telescopic structure of screw thread is adopted to the horizon bar 18 optimization. The width of the tire transport frame is changed by adjusting the length of the horizontal rod 18, so that the tire transport frame can adapt to tires 1 with various width specifications.

Generally, the moment adjusting structure needs to amplify the moment transmitted from the long sleeve 4 to the driving pulley 7 by 2 to 3 times, because the radius of the driven pulley 9 is increased as the amplification is increased. 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 10 is further provided on the second housing 52, one end of the threaded telescopic rod 10 is rotatably connected with the first housing 51 or the second housing 52, and the rod body of the threaded telescopic rod 10 forms an inclination angle of 30 ° with the shell surface of the first housing 51 or the second housing 52. When the moment adjusting structure is installed on the side surface of the tire 1, the threaded telescopic rod 10 can be used for supporting the second shell 52; after the moment adjusting structure is completed, the second housing 52 can be fixed by adjusting the length of the threaded telescopic rod 10, and the second housing 52 is supported on the ground by the threaded telescopic rod 10. The same as the hanging structure, the first shell 51 can also be provided with a threaded telescopic rod 10, the structure and the function of which are also the same, and the fixed structure for adjusting the moment is similar to a foot rest on a bicycle or two-way 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. The utility model provides a portable tire installation and removal device which characterized in that: comprises a long sleeve (4), a moment adjusting structure and a tire (1) transportation frame; the moment adjusting structure comprises a first shell (51), a second shell (52), a driving pulley (7), an intermediate pulley (8) and a driven pulley (9); a first belt groove and a second belt groove which are coaxial and side by side are formed in the middle belt pulley (8); one end of the first shell (51) is rotationally connected with the driving belt pulley (7), and the other end of the first shell (51) is rotationally connected with the middle belt pulley (8); one end of the second shell (52) is rotationally connected with the middle belt pulley (8), and the other end of the second shell (52) is rotationally connected with the driven belt pulley (9); the driving belt pulley (7) is in belt connection with a first belt groove of an intermediate belt pulley (8), and a second belt groove of the intermediate belt pulley (8) is in belt connection with the driven belt pulley (9); the working radius of the driven belt pulley (9) is larger than that of the driving belt pulley (7);

a V-shaped suspension block (12) and a polygonal convex column (3) are arranged at the center of the wheel surface of the driving belt pulley (7), an included angle part (122) of the V-shaped suspension block (12) is coaxially and rotatably connected with the driving belt pulley (7) through a pin shaft (11), and a gap is reserved between the included angle part (122) of the V-shaped suspension block (12) and the driving wheel; two ends of the V-shaped suspension block (12) far away from the driving belt pulley (7) are provided with U-shaped reverse bending parts (121), and the U-shaped reverse bending parts (121) are vertical to the wheel surface of the driving belt pulley (7); the polygonal convex column (3) is fixedly connected with the driving belt pulley (7) or integrally formed; one end of the long sleeve (4) is provided with a polygonal concave hole which can be tightly matched with the polygonal convex column (3); a nut sleeve (13) is arranged at the center of the driven belt pulley (9), and the nut sleeve (13) is fixedly connected with the driven belt pulley (9) or integrally formed;

the tire transportation frame is of a rectangular frame structure and is formed by connecting two adjusting rods and two horizontal rods (18); the two horizontal rods (18) correspond to two long sides of the rectangular frame structure, and the two horizontal rods (18) correspond to two short sides of the rectangular frame structure; the adjusting rod comprises a thin rod (14) and a thick rod (15) which are coaxially arranged, the thick rod (15) is provided with an adjusting hole for the thin rod (14) to be inserted into along the axial direction, the thick rod (15) is provided with a positioning hole along the radial direction, the positioning hole is internally connected with a locking screw rod (16) in a threaded manner, and the top end of the locking screw rod (16) extends into the adjusting hole; the adjusting rod is fixedly provided with a universal wheel (17) at the end close to the horizontal rod (18).

2. A portable tire mounting and demounting device as set forth in claim 1, wherein: the horizontal rod (18) is a threaded telescopic rod (10).

3. A portable tire mounting and demounting device as set forth in claim 1, wherein: the two horizontal rods (18) are rotatably connected with the two corresponding adjusting rods.

4. A portable tire mounting and demounting device as set forth in claim 1, wherein: the working radius of the driven pulley (9) is 2 to 3 times of the working radius of the driving pulley (7).

5. A portable tire mounting and demounting device as set forth in claim 1, wherein: the first shell (51) or the second shell (52) is provided with a threaded telescopic rod (10), one end of the threaded telescopic rod (10) is rotatably connected with the first shell (51) or the second shell (52), and the rod body of the threaded telescopic rod (10) and the shell surface of the first shell (51) or the second shell (52) form an inclination angle of 30 degrees.

6. A portable tire mounting and demounting device as set forth in claim 1, wherein: the adjusting rod comprises two thin rods (14) and a thick rod (15), and adjusting holes formed in the thick rod (15) penetrate through the thick rod (15).