Pneumatic tire expanding machine

Abstract

The utility model relates to the technical field of tire expanding machines, in particular to a pneumatic tire expanding machine which comprises a cylinder, bases are fixedly installed at the bottoms of the two ends of the cylinder, a protective cover is fixedly installed on one base, a foot switch is arranged at the bottom of the protective cover and electrically connected with an air cylinder, and the air cylinder is fixedly installed at the top of the cylinder. A tire expanding transmission mechanism is mounted on the air cylinder; a positioning barrel is fixedly installed between two first transmission rods, a round rod is arranged on the inner wall of the positioning barrel, the positioning barrel and the round rod are both provided with inner threaded holes, a bolt is installed on the positioning barrel and connected with the round rod, an adjustable tire detaching claw has a fixing effect on a tire, the round rod can move up and down in the positioning barrel and is fixed through the bolt, and therefore the tire detaching efficiency is improved. When the workbench moves upwards, the transmission rod is driven to move upwards, the transmission rod drives the first transmission rod to turn over, and the first transmission rod drives the connecting frame to extend outwards, so that the tire is pushed open.

Description

Technical Field

[0001] The utility model relates to the technical field of tire expanders, in particular to a pneumatic tire expander. Background Art

[0002] In the process of automobile tire maintenance, tire expanders are often used. Tire expanders can expand the peeled tire outer shell, making it convenient for grinding and repairing the outer tire.

[0003] The existing Chinese utility model patent with reference application number 201920972038.3 includes a lower bracket, an upper bracket fixed on the lower bracket, a driving device arranged on the upper bracket, a support plate fixed on the driving device, two groups of W-shaped transmission components arranged on the left and right sides of the support plate, and two groups of grab hook components between the two groups of transmission components. The two groups of transmission components can drive the two groups of grab hook components to move closer to or away from each other. The grab hook component includes a U-shaped plate, and the U-shaped plate is provided with a plurality of bolt holes symmetrical to the symmetrical center line of the U-shaped plate. The bottom end of the U-shaped plate is fixedly connected with a grab hook, wherein a pin is fixed between two symmetrical bolt holes, and the two ends of the pin are locked on the outer side of the U-shaped plate. A square column is hinged on the pin, and the square column is connected to the transmission component. By adjusting the position of the pin on the U-shaped plate, the grab hook can adapt to wheel tires of different widths;

[0004] However, the widths of tires of different specifications vary greatly, and the grab hook of the hydraulic tire expander can only be flipped but cannot be moved up and down to widen the grab width. It cannot be flexibly adapted to the widths of tires of different specifications, and there is no tool box, which makes it inconvenient to take the tools. Utility Model Content

[0005] The purpose of the utility model is to provide a pneumatic tire expander to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The pneumatic tire expander comprises a cylinder, bases are fixedly installed at the bottom of both ends of the cylinder, a protective cover is fixedly installed on one of the bases, a foot switch is provided at the bottom of the protective cover, the foot switch is electrically connected to a cylinder, the cylinder is fixedly installed on the top of the cylinder, and a tire expansion transmission mechanism is installed on the cylinder;

[0008] The tire expansion transmission mechanism includes a cross bar, which is fixedly mounted on the top of the outer wall of the cylinder, a tool box is fixedly mounted on the side wall of the cross bar, a first layer is provided on the top of the tool box, a second layer is provided on the bottom of the tool box, a hanger plate is fixedly mounted on the side wall of the tool box, and slots are evenly opened on the hanger plate;

[0009] The tire expansion transmission mechanism also includes an adjustable tire claw, which includes a transmission rod 1. A positioning cylinder is fixedly installed between two groups of the transmission rod 1. A round rod is provided on the inner wall of the positioning cylinder. Internal threaded holes are provided on the positioning cylinder and the round rod. Bolts are installed on the positioning cylinder, and the bolts are connected to the round rod.

[0010] In a preferred embodiment of the utility model, a workbench is fixedly installed on the top of the cylinder, two ends of the workbench are rotatably connected to a transmission rod, the bottom of the transmission rod is rotatably connected to a transmission rod 1, and the middle of the transmission rod 1 is rotatably connected to a cross bar.

[0011] In a preferred embodiment of the utility model, the adjustable tire claw also includes a connecting cylinder, which is fixedly connected to the round rod, and the cylinder is connected to the connecting frame through a rotating pin, and metal rods are fixedly installed at both ends of the connecting frame, and rubber heads are installed at the ends of the metal rods.

[0012] In a preferred embodiment of the utility model, V-frames are fixedly installed at both ends of the crossbar, and rollers are rotatably connected to both ends of the V-frame, and the rollers are arranged at both ends of the workbench.

[0013] In a preferred embodiment of the present utility model, a bent pipe bracket is fixedly mounted on one side of the cross bar, and a lighting lamp is fixedly mounted on the bent pipe bracket.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention.

[0015] The base is fixed at the bottom of both ends of the cylinder. The structure of the cylinder reduces the area occupied by the bottom, is small in size, and is portable.

[0016] The tool box is fixedly installed on the side wall of the cross bar, a layer plate 1 is provided on the top of the tool box, a layer plate 2 is provided on the bottom of the tool box, and a hanger plate is fixedly installed on the side wall of the tool box, and slots are evenly opened on the hanger plate; the cross bar 51 has a mounting function for the tool box, and the tool box is convenient for placing tools, and the layer plate 1 and the layer plate 2 separate the tool box space, thereby improving the utilization rate of the tool box, and the slots of the hanger plate also have a placement effect on the tools;

[0017] A positioning cylinder is fixedly installed between the two groups of transmission rods, a round rod is provided on the inner wall of the positioning cylinder, internal threaded holes are provided on the positioning cylinder and the round rod, bolts are installed on the positioning cylinder, the bolts are connected to the round rod, and the adjustable tire claws have a fixing effect on the tire. The round rod can move up and down inside the positioning cylinder and is fixed by bolts. When the workbench moves up, it drives the transmission rod to move up, and the transmission rod drives the transmission rod 1 to flip, and the transmission rod 1 drives the connecting frame to extend outward, thereby removing the tire. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 This is the middle right view of the pneumatic tire expander;

[0020] Figure 2 This is the main view of the pneumatic tire expander;

[0021] Figure 3 It is a schematic diagram of the top structure of the pneumatic tire expander;

[0022] Figure 4 For pneumatic tire expander Figure 1 ;

[0023] Figure 5 For pneumatic tire expander Figure 2 ;

[0024] Figure 6 For pneumatic tire expander Figure 3 .

[0025] In the figure: a cylinder 10, a base 11, a protective cover 12, a foot switch 20, a cylinder 30, a workbench 40, a tire expansion transmission mechanism 50, a cross bar 51, a transmission rod 1 52, a transmission rod 53, a positioning cylinder 54, a round rod 55, a bolt 56, a connecting cylinder 57, a connecting frame 58, a metal rod 581, a rubber head 582, a rotating pin 59, a V-frame 60, a roller 61, a tool box 70, a layer plate 1 71, a layer plate 2 72, a hanger plate 73, a slot 731, a lighting lamp 80, and a bent pipe bracket 81. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0027] Please refer to Figure 1-6 The pneumatic tire expander comprises a cylinder 10, bases 11 are fixedly installed at the bottom of both ends of the cylinder 10, a protective cover 12 is fixedly installed on one of the bases 11, a foot switch 20 is provided at the bottom of the protective cover 12, the foot switch 20 is electrically connected to a cylinder 30, the cylinder 30 is fixedly installed on the top of the cylinder 10, and a tire expansion transmission mechanism 50 is installed on the cylinder 30; specifically, the structure of the cylinder 10 reduces the bottom occupied area, the body is small, and the structure is portable; the base 11 has a supporting effect on the cylinder 10, and the foot switch 20 is used to start the cylinder 30;

[0028] The tire expansion transmission mechanism 50 includes a cross bar 51, which is fixedly mounted on the top of the outer wall of the cylinder 30, and a tool box 70 is fixedly mounted on the side wall of the cross bar 51. A layer plate 1 71 is provided on the top of the tool box 70, and a layer plate 2 72 is provided on the bottom of the tool box 70. A hanger plate 73 is fixedly mounted on the side wall of the tool box 70, and slots 731 are evenly opened on the hanger plate 73. Specifically, the cross bar 51 has an installation function for the tool box 70, and the tool box 70 is convenient for placing tools. The layer plate 1 71 and the layer plate 2 72 separate the space of the tool box 70, thereby improving the utilization rate of the tool box 70, and the slots 731 of the hanger plate 73 also have a placement effect on tools.

[0029] The tire expansion transmission mechanism 50 also includes an adjustable tire claw (not marked in the figure), which includes a transmission rod 52. A positioning cylinder 54 is fixedly installed between two groups of the transmission rods 52. A round rod 55 is provided on the inner wall of the positioning cylinder 54. Internal threaded holes are provided on the positioning cylinder 54 and the round rod 55. Bolts 56 are installed on the positioning cylinder 54, and the bolts 56 are connected to the round rod 55. The adjustable tire claw has a fixing effect on the tire. The round rod 55 can move up and down inside the positioning cylinder 54 and is fixed by the bolts 56.

[0030] A workbench 40 is fixedly installed on the top of the cylinder 30 , and both ends of the workbench 40 are rotatably connected to transmission rods 53 , and the bottom of the transmission rod 53 is rotatably connected to a transmission rod 1 52 , and the middle of the transmission rod 1 52 is rotatably connected to a cross bar 51 .

[0031] The adjustable tire claw also includes a connecting cylinder 57, which is fixedly connected to the round rod 55, and the cylinder 57 is connected to the connecting frame 58 through a rotating pin 59. Metal rods 581 are fixedly installed at both ends of the connecting frame 58, and rubber heads 582 are installed at the ends of the metal rods 581; V-frames 60 are fixedly installed at both ends of the cross bar 51, and rollers 61 are rotatably connected at both ends of the V-frame 60, and the rollers 61 are arranged at both ends of the workbench 40.

[0032] A curved tube bracket 81 is fixedly mounted on one side of the cross bar 51 , and a lighting lamp 80 is fixedly mounted on the curved tube bracket 81 . Specifically, the curved tube bracket 81 is used to support the lighting lamp 80 , and the lighting lamp 80 has a lighting effect on the tire.

[0033] The working principle of the utility model is as follows: the foot switch 20 and the cylinder 30 are connected to an external power source, the tire is placed on the workbench 40, the round rod 55 is fixed by the bolt 56, and then the connecting frame 58 is turned over, so that the metal rod 581 and the rubber head 582 grab the edge of the tire, and the cylinder 30 is started by the foot switch 20. The cylinder 30 drives the workbench 40 to move upward, and the transmission rod 53 drives the transmission rod 52 to turn over during the upward movement of the workbench 40. The transmission rod 53 drives the transmission rod 52 to turn over, and the transmission rod 52 drives the connecting frame 58 to extend outward, so as to open the tire, and the tire is repaired by taking the tools in the tool box 70, and the tire is illuminated by the lighting lamp 80.

[0034] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. Pneumatic tire expander, characterized by: The invention comprises a cylindrical body (10), bases (11) are fixedly mounted at the bottom of both ends of the cylindrical body (10), a protective cover (12) is fixedly mounted on one of the bases (11), a foot switch (20) is arranged at the bottom of the protective cover (12), the foot switch (20) is electrically connected to a cylinder (30), the cylinder (30) is fixedly mounted on the top of the cylindrical body (10), and a tire expansion transmission mechanism (50) is mounted on the cylinder (30); The tire expansion transmission mechanism (50) comprises a cross bar (51), the cross bar (51) is fixedly mounted on the top of the outer wall of the cylinder (30), a tool box (70) is fixedly mounted on the side wall of the cross bar (51), a first layer plate (71) is provided on the top of the tool box (70), a second layer plate (72) is provided on the bottom of the tool box (70), a hanger plate (73) is fixedly mounted on the side wall of the tool box (70), and slots (731) are evenly opened on the hanger plate (73); The tire expansion transmission mechanism (50) also includes an adjustable tire claw, which includes a transmission rod (52). A positioning cylinder (54) is fixedly installed between two groups of the transmission rods (52). A round rod (55) is provided on the inner wall of the positioning cylinder (54). Internal threaded holes are provided on the positioning cylinder (54) and the round rod (55). A bolt (56) is installed on the positioning cylinder (54), and the bolt (56) is connected to the round rod (55).

2. The pneumatic tire expander according to claim 1, characterized in that: A workbench (40) is fixedly mounted on the top of the cylinder (30); two ends of the workbench (40) are rotatably connected to transmission rods (53); the bottom of the transmission rod (53) is rotatably connected to a transmission rod 1 (52); and the middle of the transmission rod 1 (52) is rotatably connected to a crossbar (51).

3. The pneumatic tire expander according to claim 1, characterized in that: The adjustable tire claw also includes a connecting cylinder (57), the connecting cylinder (57) is fixedly connected to the round rod (55), the cylinder (57) is connected to the connecting frame (58) via a rotating pin (59), and metal rods (581) are fixedly installed at both ends of the connecting frame (58), and rubber heads (582) are installed at the ends of the metal rods (581).

4. The pneumatic tire expander according to claim 1, characterized in that: The two ends of the crossbar (51) are fixedly mounted with a V-shaped frame (60), and the two ends of the V-shaped frame (60) are rotatably connected to a roller (61), and the roller (61) is arranged at the two ends of the workbench (40).

5. The pneumatic tire expander according to claim 1, characterized in that: A curved pipe bracket (81) is fixedly mounted on one side of the crossbar (51), and a lighting lamp (80) is fixedly mounted on the curved pipe bracket (81).

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