Tire hooking device and tire changer

Abstract

The utility model relates to the field of tire dismounting and mounting equipment, and discloses a tire hooking device and a tire changer. The tire hooking device comprises a sliding seat and a connecting rod movably connected with the sliding seat, a first sliding way and a second sliding way are arranged on the sliding seat, the connecting rod comprises a first connecting end movably connected with the first sliding way and a second connecting end movably connected with the second sliding way, and the second connecting end is connected with a tire hook. The utility model further provides the tire changer which comprises the main workbench used for containing the tire and the tire hooking device arranged above the main workbench, the movement track of the tire hook connected with the connecting rod is controlled through the guiding movement of the connecting rod in the first sliding way and the second sliding way, and the tire can be hooked and pried in the tire hooking and prying process. The sliding seat and the tire hook are effectively prevented from being in contact with the rim, the rim is prevented from being damaged, and the service life of the rim is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of tire disassembly and assembly equipment, in particular to a tire hook device and a tire changing machine. Background Art

[0002] Tires are one of the most important components of various land vehicles. Tires need to directly bear the weight of the vehicle and contact the ground to provide the friction required for movement. In view of the working environment of tires, tires are also one of the main consumables of automobile vehicles. The rims used to support tires are generally made of metal, which has higher strength, durability and longer service life than tires, making tire replacement a high-frequency task in the daily maintenance and repair of automobile vehicles. Combined with the existing number of land vehicles, the overall workload of tire replacement is quite heavy and time-consuming. The prior art provides a variety of tire disassembly and assembly machines or tire changers to assist operators in improving tire changing efficiency and reducing manual labor intensity.

[0003] In the prior art, the disassembly head of the tire hook device used in the tire disassembly and assembly machine needs to abut against the edge of the wheel hub, and then drive the tire hook along a single track to disassemble and assemble the tire. During the process of using the tire hook to disassemble and assemble the tire, the disassembly head or the tire hook contacts the rim for leverage. Therefore, there is a risk of damaging the rim during the disassembly and assembly process.

[0004] In the utility model patent with publication number CN207902048U, a pry bar-free pneumatic tire hook structure for a tire removal machine is disclosed, wherein the tire hook structure 3 comprises a support 31 fixed on a tire hook bracket 1, a connecting seat 32 is fixed on the bottom surface of the support 31, a lifting cavity 33 with a bottom opening is arranged in the support 31, a lifting cylinder 34 is fixed on the side wall of the connecting seat 32, a piston shaft of the lifting cylinder 34 extends into the lifting cavity 33, a wheel hub pressing hook plate 35 is fixed on the bottom surface of the connecting seat 32, a guide convex plate 36 is fixed on the side wall of the connecting seat 32, the guide convex plate 36 is symmetrically arranged on the side wall of the connecting seat 32 with the lifting cylinder 34, and a hook rod 37 is also arranged, a lateral pressing block 38 is fixed on the top of the hook rod 37, and the lateral pressing block 38 is fixed on the top of the hook rod 37. 8 extends into the lifting cavity 33 and is connected to the piston shaft of the lifting cylinder 34 through a pin shaft 39. The middle part of the hook rod 37 is connected to the guide convex plate 36 through a rotating shaft 310. A vertical waist-shaped groove 311 is provided on the guide convex plate 36, and the rotating shaft is located in the vertical waist-shaped groove. When the above-mentioned tire hooking structure is in use, the wheel hub needs to be pressed against the hook plate 35 and pressed against the edge of the wheel hub, and then the movement of the hook rod 37 is driven by the piston rod to perform the tire hooking and tire removal operations. Therefore, the wheel hub pressing the hook plate 35 inevitably needs to contact the rim, and since it can only guide the movement trajectory of the hook rod through the movement of the rotating shaft in the vertical waist-shaped groove, its movement range is limited. Although it can also complete the tire hooking and tire removal action, there is an obvious hidden danger of causing damage to the rim during use, which affects the service life of the rim. Utility Model Content

[0005] The utility model aims to provide a tire hooking device and a tire changing machine, so that the tire hooking device does not contact with the rim during use, thereby avoiding damage to the rim.

[0006] In order to solve the above technical problems, the implementation method of the utility model provides a technical solution as follows:

[0007] A tire hook device includes a sliding seat and a connecting rod movably connected to the sliding seat, wherein the sliding seat is provided with a first slide and a second slide, the connecting rod includes a first connecting end movably connected to the first slide, and a second connecting end movably connected to the second slide, the second connecting end is connected with a tire hook, and the connecting rod can control the movement trajectory of the tire hook through the movement of the first connecting end along the first slide and the movement of the second connecting end along the second slide.

[0008] Furthermore, the first slide includes a first guide end and a second guide end, the axis of the first guide end intersects with the axis of the second guide end, and the connecting rod can move along the second guide end through the first connecting end to drive the tire hook to rotate around the second connecting end as the center point.

[0009] Furthermore, a turning portion is provided between the first guide end and the second guide end, and when the first connecting end moves to the turning portion, the second connecting end moves to the bottom of the second slideway.

[0010] Further, the slide seat includes a left support plate and a right support plate arranged in parallel, and the left support plate and the right support plate are symmetrically provided with a first slideway and a second slideway respectively, a first pin shaft is radially penetrated through the first connecting end, and both ends of the first pin shaft are slidably connected to the first slideway, and a second pin shaft is radially penetrated through the second connecting end, and both ends of the second pin shaft are slidably connected to the second slideway.

[0011] Furthermore, the left support plate and the right support plate are symmetrically provided with a plurality of connection holes, and connection columns are provided between the corresponding connection holes, and the connection columns are used to fix the left support plate and the right support plate.

[0012] Furthermore, the left support plate and the right support plate are integrally formed.

[0013] Furthermore, it also includes a pull rod, one end of which is connected to the first connecting end through a first pin shaft.

[0014] Furthermore, the tire hook includes a connecting portion connected to the second connecting end, and a hook portion away from the second connecting end, the connecting portion is connected to the second connecting end through a second pin shaft, a bending portion is provided between the hook portion and the connecting portion, and an opening direction of the bending portion is opposite to an opening direction of the hook portion.

[0015] In order to solve the technical problem raised in the present application, the utility model also provides a tire changing machine, comprising a main working table, and a tire hooking device as described in any one of the above items arranged parallel to the main working table.

[0016] In order to solve the technical problem raised in the present application, the utility model also provides a tire changing machine, comprising a main working table, and a tire hooking device as described in any one of the above items arranged perpendicular to the main working table.

[0017] Compared with the prior art, the tire hook device and tire changing machine provided by the utility model control the motion trajectory of the tire hook connected to the connecting rod through the guiding movement of the connecting rod in the first slideway and the second slideway, so that the motion trajectory of the tire hook is more reasonable, and the tire hooking and tire prying operations can be completed without the sliding seat contacting the rim. At the same time, during the process of hooking and prying the tire, the tire hook can effectively avoid the edge and side wall of the rim and will not contact the rim, thereby avoiding damage to the rim and helping to extend the service life of the rim. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the tire hook device in one embodiment of the utility model;

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the tire hook device at different angles in one embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram of the slide structure in one embodiment of the utility model;

[0022] Figure 4 It is a schematic diagram of the structure of the tire hook device when the slide seat is hidden in one embodiment of the utility model;

[0023] Figure 5 This is a front view of the tire hook device when the slide seat is hidden in one embodiment of the utility model;

[0024] Figure 6 It is a right view of the tire hook device when the slide seat is hidden in one embodiment of the utility model;

[0025] Figure 7 This is a schematic diagram of the connecting rod structure in one embodiment of the utility model;

[0026] Figure 8 This is a schematic diagram of the tire hook structure in one embodiment of the utility model;

[0027] Fig. 9 It is a structural schematic diagram of the tire hook device when the tire hook is located at the first position in one embodiment of the utility model;

[0028] Fig.10 It is a structural schematic diagram of the tire hook device when the tire hook is located at the second position in one embodiment of the utility model;

[0029] Fig.11 It is a structural schematic diagram of the tire hook device when the tire hook is located at the third position in one embodiment of the utility model;

[0030] Fig.12 It is a structural schematic diagram of the tire hook device when the tire hook is located at the fourth position in one embodiment of the utility model;

[0031] Fig.13 It is a schematic diagram of the motion trajectory of the tire hook in one embodiment of the utility model;

[0032] Fig.14 This is a schematic diagram of the structure of a tire changing machine in one embodiment of the utility model;

[0033] Fig.15 It is a schematic diagram of a tire hooking device of a tire changing machine in one embodiment of the utility model;

[0034] Fig.16 It is a schematic diagram of a tire prying device of a tire changing machine in one embodiment of the utility model;

[0035] Fig.17 It is a schematic diagram of the structure of a tire changing machine in different embodiments of the present invention.

[0036] Explanation of the reference numerals in the accompanying drawings: 1. Slide seat; 11. Left support plate; 12. Right support plate; 13. First slideway; 131. First guide end; 132. Steering portion; 133. Second guide end; 14. Second slideway; 15. Connecting hole; 2. Pull rod; 3. Connecting rod; 31. First connecting end; 32. Second connecting end; 33. First pin shaft; 34. Second pin shaft; 4. Tire hook; 41. Connecting portion; 42. Bending portion; 43. Hook portion; 431. First position; 432. Second position; 433. Third position, 434. Fourth position; 5. Connecting column; 6. Driving device; 7. Main working table; 8. Tire hook device. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical scheme and advantages of the utility model clearer, the various embodiments of the utility model will be described in detail below with reference to the accompanying drawings. However, it can be understood by those skilled in the art that in the various embodiments of the utility model, many technical details are provided in order to enable readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical schemes claimed for protection in the claims of the present application can be implemented.

[0038] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0039] like Figure 1-13 As shown, one embodiment of the utility model relates to a tire hook device 8, including a slide 1, and a connecting rod 3 movably connected to the slide 1, the slide 1 is provided with a first slide 13 and a second slide 14, the connecting rod 3 includes a first connecting end 31 movably connected to the first slide 13, and a second connecting end 32 movably connected to the second slide 14, the second connecting end 32 is connected with a tire hook 4, and the connecting rod 3 can control the movement trajectory of the tire hook 4 through the movement of the first connecting end 31 along the first slide 13 and the movement of the second connecting end 32 along the second slide 14.

[0040] like Figure 3 As shown, in one embodiment, the first slide 13 includes a first guide end 131 and a second guide end 133, the first guide end 131 and the second guide end 133 are elongated holes, the axis extension direction of the first guide end 131 intersects with the axis extension direction of the second guide end 133, the first guide end 131 and the second guide end 133 form an obtuse angle, and the intersection of the axis of the first guide end 131 and the axis of the second guide end 133 is a turning portion 132; the second slide 14 is an arc-shaped elongated hole, and the second slide 14 is separately arranged from the first slide 13; as shown in FIG. Fig. 9 As shown, the relative positions of the tire hook 4 and the connecting rod 3 and the slide 1 are the first position 431, and the first position 431 is also the initial position of the tire hook device 8. When the first connecting end 31 of the connecting rod 3 is located at the top of the first slide 13, the second connecting end 32 of the connecting rod 3 is located at the top of the second slide 14. At this time, the tire hook 4 is in the first position 431; Fig.10 As shown, when the first connecting end 31 of the connecting rod 3 moves along the first guide end 131, the second connecting end 32 of the connecting rod 3 moves along the second slideway 14, and synchronously drives the tire hook 4 to move along the guiding direction of the second slideway 14, and the tire hook 4 is in the second position 432; Fig.11 As shown in FIG. 1 , when the first connecting end 31 of the connecting rod 3 moves along the first guide end 131 to the turning portion 132, the second connecting end 32 of the connecting rod 3 moves to the bottom of the second slideway 14. At this time, the tire hook 4 is located at the lowest point of its movement stroke, and the tire hook 4 is in the third position 433; Fig.12 As shown, when the first connecting end 31 of the connecting rod 3 moves along the second guide end 133, the connecting rod 3 can drive the tire hook 4 to rotate around the second connecting end 32 as the center point through the movement of the first connecting end 31 along the second guide end 133. The moving direction of the tire hook 4 is opposite to the moving direction of the first connecting end 31. When the first connecting end 31 moves to the bottom of the second guide end 133, the tire hook 4 is in the fourth position 434; Fig.13 , which is a schematic diagram of the moving trajectory of the tire hook 4 when the connecting rod 3 moves along the first slideway 13 and the second slideway 14.

[0041] In one embodiment, the slide seat 1 includes a left support plate 11 and a right support plate 12 arranged in parallel, and the left support plate 11 and the right support plate 12 are symmetrically provided with a first slideway 13 and a second slideway 14, respectively. The first connecting end 31 is radially penetrated by a first pin shaft 33, and the two ends of the first pin shaft 33 are slidably connected to the first slideway 13, and the second connecting end 32 is radially penetrated by a second pin shaft 34, and the two ends of the second pin shaft 34 are slidably connected to the second slideway 14; in an exemplary example, the left support plate A plurality of connecting holes 15 are symmetrically provided on the left support plate 11 and the right support plate 12, and a connecting column 5 is provided between the corresponding connecting holes 15, and the connecting column 5 is used for fixed connection between the left support plate 11 and the right support plate 12; of course, using the existing technology, the left support plate 11 and the right support plate 12 can also adopt other connection methods, such as, the left support plate 11 and the right support plate 12 can adopt the bending process in the sheet metal process, and the left support plate 11 and the right support plate 12 are integrally formed, and the welding process can also be used to fix the left support plate 11 and the right support plate 12 by the welding process.

[0042] like Figure 4-8 As shown, in one embodiment, the first connecting end 31 of the connecting rod 3 is a symmetrical ear, and a through hole is provided on the ear along the radial direction of the connecting rod 3, and the first pin shaft 33 is penetrated in the through hole; the second connecting end 32 of the connecting rod 3 is a symmetrical ear, and a through hole is provided on the ear along the radial direction of the connecting rod 3, and the second pin shaft 34 is penetrated in the through hole; the tire hook 4 includes a connecting portion 41 connected to the second connecting end 32, and a hook portion 43 away from the second connecting end 32, a bending portion 42 is provided between the hook portion 43 and the connecting portion 41, and the opening direction of the bending portion 42 is opposite to the opening direction of the hook portion 43, the connecting portion 41 is inserted between the two ears of the second connecting end 32, and the second pin shaft 34 penetrates the connecting portion 41 to connect the tire hook 4 with the connecting rod 3.

[0043] In one embodiment, the tire hook device 8 also includes a pull rod 2, one end of the pull rod 2 is inserted between the ears of the first connecting end 31, and the first pin shaft 33 passes through one end of the pull rod 2 to connect the pull rod 2 to the first connecting end 31, and the other end of the pull rod 2 is connected to the power output rod of the driving device 6; in an exemplary example, the driving device 6 is a cylinder, and the end of the pull rod 2 away from the first connecting end 31 is connected to the cylinder piston rod.

[0044] like Figure 14-17 As shown, in one embodiment of the present invention, a tire changing machine is provided, the tire changing machine comprises a main working table 7 for positioning the tire, and a tire hooking device 8 as described in any one of the above items, the tire hooking device 8 is connected to the driving device 6, and the power output end of the driving device 6 is connected to the connecting rod 3 of the tire hooking device 8. Figure 14-16As shown, the tire hook device 8 is arranged along the axial direction of the rim, perpendicular to the main workbench 7, and arranged above the main workbench 7. During the use of the tire hook device 8, the tire hook device 8 is first moved to the vertical edge of the rim, and the driving device 6 connected to the tire hook 4 is started. The movement direction of the driving device 6 is perpendicular to the tire wall. When the first connecting end 31 of the connecting rod 3 moves in the first guide end 131, the hook portion 43 of the tire hook 4 extends along the axial direction of the edge of the rim to hook the tire and hook the tire lip position. When the first connecting end 31 of the connecting rod 3 moves in the second guide end 133, the tire hook 4 is rotated upward with the second connecting end 32 as the center point under the action of the connecting rod 3 to pry the tire, and the hook portion 43 drives the tire lip to move axially to separate from the edge of the rim. In another embodiment of the utility model, Fig.17 As shown, the tire hooking device 8 is arranged along the radial direction of the rim, parallel to the main workbench 7, and arranged above the main workbench 7. During the use of the tire hooking device 8, the tire hooking device 8 is first moved to the horizontal edge of the rim, and the driving device 6 connected to the tire hook 4 is started. The movement direction of the driving device 6 is perpendicular to the tire crown. When the first connecting end 31 of the connecting rod 3 moves in the first guide end 131, the hook portion 43 of the tire hook 4 extends axially along the edge of the rim to hook the tire and hook the tire lip position. When the first connecting end 31 of the connecting rod 3 moves in the second guide end 133, the tire hook 4 rotates along the second connecting end 32 as the center point under the action of the connecting rod 3 to pry the tire, and the hook portion 43 drives the tire lip to move radially away from the edge of the rim.

[0045] The tire hooking device and tire changing machine provided by the utility model control the motion trajectory of the tire hook connected to the connecting rod through the guiding movement of the connecting rod in the first slideway and the second slideway, so that the motion trajectory of the tire hook is more reasonable, and the tire hooking and tire prying operations can be completed without the sliding seat contacting the rim. At the same time, during the process of hooking and prying the tire, the tire hook can effectively avoid the edge and side wall of the rim and will not contact the rim, thereby avoiding damage to the rim and being beneficial to extending the service life of the rim.

[0046] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present invention, and in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A tire hook device, characterized in that: The invention comprises a slide seat (1) and a connecting rod (3) movably connected to the slide seat (1); a first slideway (13) and a second slideway (14) are arranged on the slide seat (1); the connecting rod (3) comprises a first connecting end (31) movably connected to the first slideway (13) and a second connecting end (32) movably connected to the second slideway (14); the second connecting end (32) is connected to a tire hook (4); the connecting rod (3) can control the movement trajectory of the tire hook (4) through the movement of the first connecting end (31) along the first slideway (13) and the movement of the second connecting end (32) along the second slideway (14).

2. The tire hook device according to claim 1, characterized in that: The first slideway (13) comprises a first guide end (131) and a second guide end (133), the axis of the first guide end (131) intersects with the axis of the second guide end (133), and the connecting rod (3) can move along the second guide end (133) through the first connecting end (31) to drive the tire hook (4) to rotate around the second connecting end (32) as the center point.

3. The tire hook device according to claim 2, characterized in that: A turning portion (132) is provided between the first guide end (131) and the second guide end (133); when the first connecting end (31) moves to the turning portion (132), the second connecting end (32) moves to the bottom of the second slideway (14).

4. The tire hook device according to claim 1, characterized in that: The slide seat (1) comprises a left support plate (11) and a right support plate (12) which are arranged in parallel, and a first slideway (13) and a second slideway (14) are symmetrically arranged on the left support plate (11) and the right support plate (12), respectively; a first pin shaft (33) is radially penetrated by the first connecting end (31), and both ends of the first pin shaft (33) are slidably connected to the first slideway (13); a second pin shaft (34) is radially penetrated by the second connecting end (32), and both ends of the second pin shaft (34) are slidably connected to the second slideway (14).

5. The tire hook device according to claim 4, characterized in that: The left support plate (11) and the right support plate (12) are symmetrically provided with a plurality of connection holes (15), and connection columns (5) are provided between the corresponding connection holes (15), and the connection columns (5) are used to fix the left support plate (11) and the right support plate (12) together.

6. The tire hook device according to claim 4, characterized in that: The left support plate (11) and the right support plate (12) are integrally formed.

7. The tire hook device according to claim 4, characterized in that: It also includes a pull rod (2), one end of which is connected to the first connecting end (31) via a first pin shaft (33).

8. The tire hooking device according to claim 4, characterized in that: The tire hook (4) comprises a connecting portion (41) connected to the second connecting end (32), and a hook portion (43) away from the second connecting end (32); the connecting portion (41) is connected to the second connecting end (32) via a second pin shaft (34); a bending portion (42) is provided between the hook portion (43) and the connecting portion (41); an opening direction of the bending portion (42) is opposite to an opening direction of the hook portion (43).

9. A tire changing machine, characterized in that: It comprises a main working table (7), and a tire hooking device (8) as claimed in any one of claims 1 to 8, which is arranged parallel to the main working table (7).

10. A tire changing machine, characterized in that: It comprises a main working table (7), and a tire hooking device (8) as claimed in any one of claims 1 to 8, which is arranged perpendicular to the main working table (7).

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