Portable electric bicycle tire dismounting device

Abstract

The utility model belongs to the technical field of tire maintenance, and particularly relates to a portable electric bicycle tire removing device which comprises a tire removing arm, a tire prying rod is fixedly installed at one end of the tire removing arm, a foot rest lever is fixedly installed at the other end of the tire removing arm, and the tire removing arm is perpendicular to the foot rest lever. The tire prying rod and the tire removing arm are arranged in an inclined mode, and the tire prying rod extends in the direction away from the foot rest lever. The tire changer is provided with the tire changing arm, the tire prying rod and the foot rest lever, and is simple in structure, convenient to change tires, small in size, convenient to carry out, high in practicability and easy, convenient and labor-saving to operate.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the tire maintenance technical field, concretely relates to a portable electric bicycle tire pulling device. BACKGROUND

[0002] In the fast-paced modern life, electric bicycle with its environmental protection, convenient characteristics, has become the first choice of many city commuters, however, in the face of tire repair or replacement, traditional manual tools often cumbersome operation, low efficiency, especially for non-professionals, it is a challenge, so we need to use electric bicycle tire pulling device, let the tire disassembly becomes simple and fast.

[0003] The utility model discloses in the patent for utility model with the publication No. CN212637052U proposes a kind of tire pulling machine for electric vehicle manufacturing, including rotating mechanism, the rotating mechanism includes workbench, support leg, motor one, chuck, the support leg is welded at the workbench bottom four corners, the workbench bottom is equipped with the motor one, the motor one output shaft penetrates the workbench and is equipped with the chuck, further include separation mechanism, the separation mechanism includes tire pulling support, telescopic cylinder one, shell, motor two, worm, the tire pulling support top is equipped with the telescopic cylinder one, the telescopic cylinder one telescopic end is equipped with the shell, the shell rear portion is equipped with the motor two, the motor two output shaft penetrates the shell and is equipped with the worm by key connection, tire is pulled down from wheel hub by rotating mechanism and separation mechanism.

[0004] However, the device provided by the above-mentioned utility model is not convenient to carry. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of portable electric bicycle tire pulling device to solve the problems raised in the above background art.

[0006] To achieve the above technical purpose, the technical scheme of the utility model is as follows:

[0007] A kind of portable electric bicycle tire pulling device, including tire pulling arm, one end of the tire pulling arm is fixedly installed with pry tire rod, the other end of the tire pulling arm is fixedly installed with foot pedal rod, the tire pulling arm is perpendicular to the foot pedal rod and is arranged;The pry tire rod is arranged to be inclined to the tire pulling arm, and the pry tire rod extends away from the foot pedal rod.

[0008] As a further improvement, a tire pressing rod is installed on the tire pulling arm;A positioning block is fixedly installed on the tire pulling arm, and the positioning block is provided with a positioning hole;The opening direction of the positioning hole is consistent with the direction of the foot pedal rod.

[0009] As a further improvement, one end of the pry tire rod close to the foot pedal rod extends to the tire pressing rod direction, and is fixedly connected with the tire pressing rod.

[0010] As a further improvement, the pry bar is provided with a mounting groove at one end away from the tire lever, and a pry block is detachably mounted on the mounting groove of the pry bar.

[0011] As a further improvement, the tire lever is a telescopic rod, and the tire lever is provided with a fixed sleeve fixedly connected with the foot pedal rod.

[0012] As a further improvement, the fastening mechanism comprises a screw rod penetrating through the fixed sleeve and being threadedly connected with the fixed sleeve, a star-shaped handle is mounted at one end of the screw rod away from the fixed sleeve, and the screw rod is in abutment with the sliding rod at one end away from the star-shaped handle.

[0013] As a further improvement, the middle part of the foot pedal rod is fixedly connected with the tire lever, and anti-skid sleeves are fixedly mounted at both ends of the foot pedal rod.

[0014] As a further improvement, the pry block and the press block are each internally provided with a reinforcing rib mounting hole along the length direction, and a reinforcing rib is arranged in the reinforcing rib mounting hole.

[0015] Due to the adoption of the above technical solutions, the tire lever has the following advantages:

[0016] The tire lever is provided with the tire lever, the pry bar and the foot pedal rod, has a simple structure, is convenient for tire changing, has a small size, is convenient to carry out, is practical, and is simple, convenient and labor-saving to operate. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a front view of the tire lever of the utility model embodiment 1;

[0018] Figure 2 is a front view of the tire lever of the utility model embodiment 1;

[0019] Figure 3 is a front view of the tire lever of the utility model embodiment 1;

[0020] Wherein: 2, tire lever; 3, fastening mechanism; 4, star-shaped handle; 5, screw rod; 6, foot pedal rod; 7, anti-skid sleeve; 8, fixed sleeve; 9, positioning block; 10, sliding rod; 11, tire lever; 12, press block; 13, pry bar; 14, pry block. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to specific embodiments and accompanying drawings. The accompanying drawings are for illustrative purposes only, representing schematic diagrams only, not actual physical objects, and should not be construed as limiting the scope of this application. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0022] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances. Example 1

[0023] like Figure 1 As shown, a portable electric bicycle tire-removing device includes a tire-removing arm 2, a tire-prying rod 13 fixedly installed at one end of the tire-removing arm 2, and a foot pedal 6 fixedly installed at the other end of the tire-removing arm 2. The tire-removing arm 2 and the foot pedal 6 are arranged perpendicularly. The tire-prying rod 13 is arranged at an angle to the tire-removing arm 2 and extends away from the foot pedal 6.

[0024] When using it, insert the tire lever 13 between the tire and the rim, press the axle on the rim onto the tire-removing arm 2, place the foot pedal 6 on the ground and step on it, then rotate the tire. The tire will slide along the tilt angle of the tire lever 13, separating the tire from the rim, thus completing the tire removal. Example 2

[0025] like Figures 2-3 As shown, the difference between this embodiment and embodiment 1 is that a tire-pressing rod 11 is installed on the tire-removing arm 2. The tire-pressing rod 11 is used to put the tire back into the rim, or to loosen the tire from the rim when removing the tire.

[0026] In this embodiment, a positioning block 9 is fixedly installed on the tire-changing arm 2. The positioning block 9 is provided with positioning holes. Specifically, multiple positioning holes of different diameters can be provided. The opening direction of the positioning holes is consistent with the direction of the foot pedal 6. Alternatively, a positioning clamp can be provided to clamp wheel axles of different specifications.

[0027] The wheel hub axle is inserted into the positioning hole, the foot pedal rod 6 is fixed on the ground with the foot, the position of the wheel hub is fixed, the tire sidewall is pressed by the tire pressing rod 11, the pressed tire sidewall is pressed into the wheel hub groove, and the tire is rotated so that the sidewall of the pressed side of the tire enters the groove of the wheel hub; or when the tire is disassembled, the tire pressing rod presses the tire sidewall so that it is separated from the wheel hub, facilitating the subsequent insertion of the tire lever into the combined part of the tire and the wheel hub to separate them.

[0028] In the embodiment, the tire lever 13 extends towards the foot pedal rod 6 at the end close to the foot pedal rod 6, the end of the tire lever 13 close to the foot pedal rod 6 is fixedly connected with the tire pressing rod 11, the tire pressing rod 11 and the tire lever 13 are fixedly connected with the tire arm 2 respectively, and the three form a triangular connection to provide support force to each other, and the structure is more stable.

[0029] In the embodiment, the end of the tire lever 13 away from the foot pedal rod 6 is provided with a mounting groove, the tire lever 13 is detachably mounted with a lever block 14 on the mounting groove, the end of the lever block 14 inserted into the mounting groove is in the shape of a cuboid, the other end gradually narrows in width and is rounded to be smooth without edges, the end of the tire pressing rod 11 away from the tire arm 2 is provided with a mounting groove, and the tire pressing rod 11 is detachably mounted with a pressing block 12 on the mounting groove, the pressing block 12 is in the shape of a cuboid, and the end of the pressing block 12 in contact with the tire is rounded and polished, and the lever block 14 and the pressing block 12 are detachably connected, specifically, threaded installation bolts are respectively penetrated through the side walls of the mounting grooves of the tire pressing rod 11 and the tire lever 13, the bolts are respectively in abutment with the lever block 14 and the pressing block 12, the bolts are tightened to abut and fix the lever block 14 and the pressing block 12, and when the bolts are loosened, the lever block 14 and the pressing block 12 can be respectively detached from the tire lever 13 and the tire pressing rod 11.

[0030] In the embodiment, the lever block 14 and the pressing block 12 are both provided with a reinforcing rib installation hole inside along the length direction, and a reinforcing rib is arranged in the reinforcing rib installation hole to enhance the structural strength of the lever block 14 and the pressing block 12.

[0031] Specifically, the friction coefficient of the pressing block 12 and the lever block 14 is small, and the friction between the pressing block 12 and the lever block 14 and the tire and the wheel hub is small, so that the wheel hub and the tire can be fully protected from damage caused by the friction, and the work is relatively labor-saving, and the pe, pc, ppa or synthetic resin with high strength and small friction coefficient can be used, and a reinforcing rib of metal material is arranged inside, or a metal material with high strength is used, and a Teflon layer is coated on the outer surface of the metal material to obtain a small friction coefficient.

[0032] In the embodiment, the tire prying arm 2 is a telescopic rod, and the length of the tire prying arm 2 can be adjusted, so that the device can be adapted to different sizes of tires, and the practicability is stronger. Specifically, the tire prying arm 2 is provided with a fixed sleeve 8, the fixed sleeve 8 is fixedly connected with the foot pedal rod 6, a sliding rod 10 is slidably connected in the fixed sleeve 8, the telescopic action is realized by sliding of the sliding rod 10, and a fastening mechanism 3 is installed on one side wall of the fixed sleeve 8. The fastening mechanism 3 can fix the sliding rod 10, so that the length of the tire prying arm 2 remains unchanged during use.

[0033] In the embodiment, the fastening mechanism 3 comprises a screw rod 5 penetrating through the fixed sleeve 8 and being threadedly connected with the fixed sleeve 8, a star-shaped handle 4 is installed at one end of the screw rod 5 away from the fixed sleeve 8, one end of the screw rod 5 away from the star-shaped handle 4 abuts against the sliding rod 10, the screw rod 5 is rotated by rotating the star-shaped handle 4, the screw rod 5 abuts tightly against the sliding rod 10, and thus the fixing is completed.

[0034] In the embodiment, the middle part of the foot pedal rod 6 is fixedly connected with the tire prying arm 2, and anti-skid sleeves 7 are fixedly installed at both ends of the foot pedal rod 6. When a user steps on the foot pedal rod 6, the anti-skid sleeves 7 can increase the friction force between the foot pedal rod 6 and the foot bottom and the ground, so that the slipping phenomenon is avoided, and the device is more stable during use.

[0035] In summary, in actual use, the hub is removed, the tire is deflated, the foot pedal rod 6 of the device is placed on the ground and stepped on, the axle of the hub is inserted into the matched positioning hole, the length of the tire prying arm 2 is adjusted, the tire inner side wall is pressed by the tire pressing rod 11, the tire inner side wall is separated from the hub groove, the tire is rotated for one circle, the tire is completely separated from the hub, then the device is taken off from the axle, the tire prying block 14 on the tire prying rod 13 is inserted between the tire side wall and the hub, the tire prying arm is moved to be close to the hub, the foot pedal rod is placed on the ground and stepped on, the tire and the hub are rotated, the tire side wall is separated from the outside of the hub groove under the action of the tire prying rod 13, and the tire prying is completed. When the tire is installed back, the mounting hole of the tire prying arm is sleeved on the axle, the position of the tire pressing rod is adjusted, the tire side wall is pressed tightly, then the tire and the hub are rotated, and one side wall of the tire is sleeved on the hub under the pressing of the tire pressing rod, so that the installation of the tire is facilitated.

[0036] The specific implementation manner of the device does not constitute a limitation on the protection scope of the device. Any other corresponding changes and modifications made according to the technical concept of the device shall be included in the protection scope of the device.

Claims

1. A portable electric bicycle tire-changing device, characterized in that, It includes a tire-removing arm (2), one end of which is fixedly equipped with a tire-prying rod (13), and the other end of which is fixedly equipped with a foot pedal (6). The tire-removing arm (2) and the foot pedal (6) are arranged perpendicularly to each other. The tire lever (13) is inclined to the tire-removing arm (2), and the tire lever (13) extends away from the foot pedal (6).

2. The portable electric bicycle tire changing device according to claim 1, characterized in that, The tire-removing arm (2) is equipped with a tire-pressing rod (11). A positioning block (9) is fixedly installed on the tire-removing arm (2), and the positioning block (9) is provided with a positioning hole; The opening direction of the positioning hole is consistent with the direction of the foot pedal (6).

3. The portable electric bicycle tire changing device according to claim 2, characterized in that, The end of the tire lever (13) near the foot pedal (6) extends toward the tire pressure lever (11) and is fixedly connected to the tire pressure lever (11).

4. The portable electric bicycle tire changing device according to claim 2, characterized in that, The end of the tire lever (13) away from the tire-removing arm (2) is provided with an installation groove, and a prying block (14) is detachably installed on the installation groove of the tire lever (13). The end of the tire pressing rod (11) away from the tire-removing arm (2) is provided with an installation groove, and a pressing block (12) is detachably installed on the installation groove of the tire pressing rod (11).

5. The portable electric bicycle tire changing device according to claim 1, characterized in that, The tire-removing arm (2) is a telescopic rod. The tire-removing arm (2) is provided with a fixed sleeve (8). The fixed sleeve (8) is fixedly connected to the foot pedal (6). A sliding rod (10) is slidably connected inside the fixed sleeve (8). The sliding rod (10) is fixedly connected to the tire-prying rod (13) and the tire-pressing rod (11) respectively. A fastening mechanism (3) is installed on one side wall of the fixed sleeve (8).

6. The portable electric bicycle tire changing device according to claim 5, characterized in that, The fastening mechanism (3) includes a screw (5) that passes through and is threadedly connected to the fixed sleeve (8). A star handle (4) is installed at the end of the screw (5) away from the fixed sleeve (8). The end of the screw (5) away from the star handle (4) abuts against the sliding rod (10).

7. The portable electric bicycle tire changing device according to claim 1, characterized in that, The middle part of the foot pedal (6) is fixedly connected to the tire-changing arm (2), and anti-slip sleeves (7) are fixedly installed at both ends of the foot pedal (6).

8. The portable electric bicycle tire changing device according to claim 4, characterized in that, Both the pry block (14) and the pressing block (12) have reinforcing rib mounting holes along their length, and reinforcing ribs are provided in the reinforcing rib mounting holes.

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