Tire pressing device and tire changing machine

Abstract

This utility model provides a tire pressing device and a tire removal and installation machine. The tire pressing device includes two tire pressing components, one above the other, positioned directly opposite each other. Each tire pressing component includes: a mounting arm with a first opening at one end communicating with a cavity of the mounting arm; a telescopic rod with a first end and a second end located at opposite ends, the first end being slidably disposed in the cavity of the mounting arm through the first opening; and a tire pressing cone rotatably disposed at the second end. By arranging the two tire pressing components directly opposite each other, the tire pressing cones of the two components work together to press the tire bead of the tire to be removed during the tire pressing operation, improving the success rate of separating the adhered tire bead from the rim, thereby improving the tire removal efficiency.

Description

Technical Field

[0001] This utility model relates to the field of vehicle maintenance technology, and in particular to a tire pressing device and a tire changing machine. Background Technology

[0002] Under pressure, the wheel rim and the tire bead of the tire to be removed will stick together due to prolonged contact. This adhesion increases the difficulty of removing the tire from the wheel rim.

[0003] Existing tire pressing devices have a low success rate in separating the stuck tire bead from the rim and low tire removal efficiency. Utility Model Content

[0004] This utility model provides a tire pressing device and a tire removal machine to solve the problems of low success rate and low tire removal efficiency of existing tire pressing devices in separating the stuck tire bead from the wheel rim.

[0005] To solve the above-mentioned technical problems, this utility model is implemented as follows: In a first aspect, embodiments of the present invention provide a tire pressing device, comprising: The two tire pressure components are positioned one above the other, and their positions are directly opposite each other. Each of the tire pressure components includes: The mounting arm has a first opening at one end that communicates with the arm cavity of the mounting arm; The telescopic rod has a first end and a second end located at two ends, the first end being slidably disposed in the arm cavity of the mounting arm from the first opening; The tire pressure cone is rotatably disposed at the second end.

[0006] Optionally, the telescopic rod has a plurality of limiting holes spaced apart along the length of the telescopic rod; The mounting arm has a through hole; The tire pressing assembly also includes: A limiting pin passes through the through hole and is inserted into one of the plurality of limiting holes that corresponds to the through hole.

[0007] Optionally, the pressure cone of the upper pressure assembly of the two pressure assemblies extends downward at an angle; The pressure cone of the lower pressure assembly of the two pressure assemblies extends upward at an angle.

[0008] Optionally, the second end has a mounting surface, the vertical line of which is inclined relative to the length extension line of the telescopic rod; The pressure cone is rotatably disposed on the assembly table about its axis, and the axis of the pressure cone is perpendicular to the assembly table.

[0009] Optionally, the tire pressure cone includes: a column segment and a vertebral segment; One end of the column segment is rotatably mounted on the assembly table about the axis of the column segment, and the other end is connected to the cone segment; The axis of the column segment, the axis of the vertebral segment, and the axis of the pressure cone are collinear.

[0010] Optionally, the column segment is cylindrical, the vertebral segment is conical, and the diameter of the column segment is equal to the diameter of the bottom surface of the vertebral segment.

[0011] Optionally, it also includes: A sliding plate is located on the outer side of the column of the tire changer and can slide up and down along the column; The two tire pressing components are located on the slide plate.

[0012] Optionally, the mounting arms of the two tire pressing assemblies are rotatably mounted on the slide plate about an axis extending in the vertical direction.

[0013] Optionally, each of the tire pressure components further includes: A locking mechanism is used to lock the mounting arm in a working position close to the slide plate.

[0014] Secondly, embodiments of the present invention provide a tire changer, including a tire pressing device as described in any one of the first aspects.

[0015] In this embodiment of the invention, the tire pressing device includes two tire pressing components, one above the other, and positioned directly opposite each other. Each tire pressing component includes: a mounting arm with a first opening at one end communicating with the arm cavity of the mounting arm; a telescopic rod with a first end and a second end located at both ends, the first end being slidably disposed in the arm cavity of the mounting arm from the first opening; and a tire pressing cone rotatably disposed at the second end. By arranging the two tire pressing components directly opposite each other, during tire pressing operations, the tire pressing cones of the two tire pressing components work together to press the tire bead of the tire to be removed, thereby improving the success rate of separating the adhered tire bead from the wheel hub and thus improving the tire removal efficiency. Attached Figure Description

[0016] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 This is a schematic diagram of the tire pressing device according to an embodiment of the present invention; Figure 2This is one of the structural schematic diagrams of the tire pressing component in the tire pressing device of this utility model embodiment; Figure 3 This is the second schematic diagram of the tire pressing component in the tire pressing device of this utility model embodiment; Figure 4 This is a schematic diagram of the telescopic rod in the tire pressing device according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the slide plate in the tire pressing device according to an embodiment of the present invention; in: 1. Skateboard; 11. Boss; 3. Tire pressing assembly; 31. Mounting arm; 31a. Through hole; 32. Telescopic rod; 32a. Limiting hole; 321. Assembly table; 33. Tire pressing cone; 331. Column section; 332. Conical section; 34. Limiting pin; 4. Locking mechanism; 43. First hook; 44. First elastic element. Detailed Implementation

[0017] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] In the description of the embodiments of this utility model, the terms "first," "second," etc., are used to distinguish similar objects, not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this utility model can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, without limiting the number of objects; for example, the first object can be one or more. Furthermore, in the embodiments of this utility model, "or" indicates at least one of the connected objects. For example, "A or B" covers three scenarios: Scenario 1: including A but not B; Scenario 2: including B but not A; Scenario 3: including both A and B. The character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0019] In the description of the embodiments of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this disclosure 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, they should not be construed as limitations on the embodiments of this disclosure. The front end can be referred to as the rear end, and the rear end can be referred to as the front end.

[0020] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0021] In the description of the embodiments of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0022] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a flexible connection or a rigid connection along at least one direction; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or a direct connection with an intermediate medium present; they can also refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. The terms "installed," "set," "fixed," etc., can be broadly understood as connection. For those skilled in the art, the specific meaning of the above terms in this embodiment of the invention can be understood according to the specific circumstances.

[0023] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0024] This utility model embodiment provides a tire pressing device, see [link]. Figure 1 , Figure 2 , Figure 3As shown, it includes: Two tire pressure components 3 are set one above the other, and their positions are directly opposite each other; Each tire pressure assembly 3 includes: Mounting arm 31, one end of which has a first opening communicating with the arm cavity of mounting arm 31; The telescopic rod 32 has a first end and a second end located at both ends, and the first end is slidably disposed in the arm cavity of the mounting arm 31 from a first opening; The tire pressure cone 33 is rotatably disposed at the second end.

[0025] When tire pressing is required, the user can place the tire in the working position between the two tire pressing components 3. Then, the user can operate the two tire pressing components 3, causing the pressing cones 33 of the two tire pressing components 3 to press the tire bead of the tire to be removed from both above and below. The pressing force separates the sticky tire bead from the rim. The user operates the tire to rotate around the tire axis until the pressing cones 33 completely separate the sticky tire bead from the rim.

[0026] In this embodiment of the invention, the tire pressing device includes two tire pressing components 3, arranged one above the other and facing each other. Each tire pressing component 3 includes: a mounting arm 31, one end of which has a first opening communicating with the arm cavity of the mounting arm 31; a telescopic rod 32, having a first end and a second end located at both ends, the first end being slidably disposed in the arm cavity of the mounting arm 31 from the first opening; and a tire pressing cone 33, rotatably disposed at the second end. By arranging the two tire pressing components 3 facing each other, during the tire pressing operation, the tire pressing cones 33 of the two tire pressing components 3 work together to press the tire bead of the tire to be removed, thereby improving the success rate of separating the adhered tire bead from the wheel hub and thus improving the tire removal efficiency.

[0027] In some embodiments, optionally, see [link to relevant documentation]. Figure 4 As shown, the telescopic rod 32 has a plurality of limiting holes 32a arranged at intervals along the length direction of the telescopic rod 32; See Figure 1 , Figure 2 , Figure 3 As shown, the mounting arm 31 has a through hole 31a; Tire compression assembly 3 also includes: The limiting pin 34 passes through the through hole 31a and is inserted into the limiting hole 32a that is aligned with the through hole 31a among a plurality of limiting holes 32a.

[0028] In this embodiment of the invention, the limiting pin 34 can be inserted into any of the through holes 31a. In practical applications, the user can flexibly adjust the extension amount of the telescopic rod 32 beyond the mounting arm 31 according to the size of the tire to be removed. After reaching the user-determined extension amount, the through hole 31a is aligned with a limiting hole 32a that matches the extension amount. The limiting pin 34 is then inserted through the third through hole 31a and into the limiting hole 32a to achieve locking. Through the above design, the tire pressing assembly 3 in this embodiment of the invention can adapt to tires of various sizes, avoiding the need to frequently change different tire pressing assemblies 3 to adapt to different tire sizes, thereby improving tire removal efficiency.

[0029] In some embodiments, optionally, the pressure cone 33 of the upper pressure assembly 3 of the two pressure assemblies 3 extends downward at an angle; The pressure cone 33 of the lower pressure assembly 3 of the two pressure assemblies 3 extends upward at an angle.

[0030] In this embodiment of the present invention, the pressure cone 33 of the upper pressure assembly 3 of the two pressure assemblies 3 extends downward at an angle, and the pressure cone 33 of the lower pressure assembly 3 of the two pressure assemblies 3 extends upward at an angle, forming an arrangement that can squeeze the tire bead from the top and bottom. Furthermore, the angled extension reduces the contact area between the pressure cone 33 and the tire bead, increasing the pressure applied to the tire bead by the pressure cone 33, thereby increasing the success rate of separating the adhered tire bead from the wheel hub and improving the tire removal efficiency.

[0031] In some embodiments, optionally, see [link to relevant documentation]. Figures 1 to 3 As shown, the second end has an assembly platform 321, and the vertical line of the assembly platform 321 is inclined relative to the length extension line of the telescopic rod 32. The pressure cone 33 is rotatably disposed on the assembly table 321 about its axis, and the axis of the pressure cone 33 is perpendicular to the assembly table 321.

[0032] In this embodiment of the utility model, the second end has an assembly platform 321, the vertical line of the assembly platform 321 is inclined relative to the length extension line of the telescopic rod 32; the tire pressure cone 33 is rotatably disposed on the assembly platform 321 around the axis of the tire pressure cone 33, and the axis of the tire pressure cone 33 is perpendicular to the assembly platform 321, thereby realizing the inclined arrangement of the tire pressure cone 33, which has a simple structure and high reliability.

[0033] In some embodiments, optionally, see [link to relevant documentation]. Figures 1 to 3 As shown, the tire pressure cone 33 includes: a column segment 331 and a cone segment 332; One end of the column segment 331 is rotatably mounted on the assembly table 321 around the axis of the column segment 331, and the other end is connected to the cone segment 332. The axis of column segment 331, the axis of vertebral segment 332, and the axis of pressure cone 33 are collinear.

[0034] During tire pressing, the conical surface of the vertebral segment 332 directly presses against the tire bead, reducing the contact area and increasing the pressure. This helps to improve the success rate of separating the sticky tire bead from the wheel hub and improves tire removal efficiency.

[0035] In some embodiments, optionally, the column segment 331 is cylindrical and the cone segment 332 is conical, with the diameter of the column segment 331 being equal to the diameter of the bottom surface of the cone segment 332, thereby reducing the risk of damage to the fetal bead caused by the pressure cone 33 during the pressure process.

[0036] In some embodiments, optionally, see [link to relevant documentation]. Figure 1 , Figure 5 As shown, it also includes: Slide 1 is located on the outer side of the column (not shown in the figure) of the tire changer and can slide up and down along the column (not shown in the figure); Two tire pressure components 3 are mounted on the slide plate 1.

[0037] In practical applications, users can operate the slide plate 1 to slide up and down along the column (not shown in the figure) to adjust the position of the tire pressing device relative to the tire, thereby improving the convenience of tire pressing operations and increasing tire removal efficiency.

[0038] In some embodiments, optionally, the mounting arms 31 of the two tire pressing assemblies 3 are rotatably mounted on the slide plate 1 about an axis extending in the vertical direction.

[0039] When the tire pressing assembly 3 is needed, the user can operate at least one of the two tire pressing assemblies 3 to rotate away from the slide plate 1, thereby facilitating the placement of the tire between the two tire pressing assemblies 3. Then, the user can operate the tire pressing assembly 3 to rotate closer to the slide plate 1 and operate both tire pressing assemblies 3 to squeeze the tire bead, using the squeezing force to separate the sticky tire bead from the rim. The user operates the tire to rotate around its axis until the tire pressing cone 33 completely separates the sticky tire bead from the rim.

[0040] In some embodiments, optionally, see [link to relevant documentation]. Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown, each tire pressing assembly 3 also includes: The locking mechanism 4 is used to lock the mounting arm 31 in the working position close to the slide plate 1.

[0041] When the tire pressing assembly 3 is needed, the user can operate the locking mechanism 4 to unlock at least one of the two tire pressing assemblies 3, and further operate the unlocked tire pressing assembly 3 to rotate away from the slide plate 1, thereby facilitating the placement of the tire between the two tire pressing assemblies 3. Afterwards, the user can operate the unlocked tire pressing assembly 3 to rotate closer to the slide plate 1, and operate the locking mechanism 4 to lock the tire pressing assembly 3. The user operates the two tire pressing assemblies 3 to squeeze the tire bead, using the squeezing force to separate the sticky tire bead from the rim. The user operates the tire to rotate around the tire axis until the tire pressing cone 33 completely separates the sticky tire bead from the rim.

[0042] In some embodiments, optionally, see [link to relevant documentation]. Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown, the locking mechanism 4 includes: The first hook 43 is rotatably mounted on the mounting arm 31 about an axis extending in the vertical direction. When the tire pressing assembly 3 is in the working position close to the slide plate 1, the first hook 43 can hook the boss 11 of the slide plate 1. The first elastic element 44 is connected to the mounting arm 31 at one end and to the first hook 43 at the other end, and is used to provide the elastic force required to maintain the hook 43 hooking the boss 11.

[0043] The locking mechanism 4 described in this embodiment of the present invention has a simple structure and high reliability.

[0044] This utility model provides a tire changer, including a tire pressing device according to any one of the embodiments of this utility model.

[0045] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of the present invention.

Claims

1. A tire pressing apparatus characterized by comprising: include: The two tire pressure components are positioned one above the other, and their positions are directly opposite each other. Each of the tire pressure components includes: The mounting arm has a first opening at one end that communicates with the arm cavity of the mounting arm; The telescopic rod has a first end and a second end located at two ends, the first end being slidably disposed in the arm cavity of the mounting arm from the first opening; The tire pressure cone is rotatably disposed at the second end.

2. The tire pressing device according to claim 1, characterized in that, The telescopic rod has a plurality of limiting holes spaced apart along the length of the telescopic rod; The mounting arm has a through hole; The tire pressing assembly also includes: A limiting pin passes through the through hole and is inserted into one of the plurality of limiting holes that corresponds to the through hole.

3. The tire pressing device according to claim 1, characterized in that, The pressure cone of the upper pressure assembly of the two pressure assemblies extends downward at an angle; The pressure cone of the lower pressure assembly of the two pressure assemblies extends upward at an angle.

4. The tire pressing device according to claim 1, characterized in that, The second end has an assembly table, the vertical line of which is inclined relative to the length extension line of the telescopic rod; The pressure cone is rotatably disposed on the assembly table about its axis, and the axis of the pressure cone is perpendicular to the assembly table.

5. The tire pressing device according to claim 4, characterized in that, The tire pressure cone includes: a column segment and a vertebral segment; One end of the column segment is rotatably mounted on the assembly table about the axis of the column segment, and the other end is connected to the cone segment; The axis of the column segment, the axis of the vertebral segment, and the axis of the pressure cone are collinear.

6. The tire pressing device according to claim 5, characterized in that, The column segment is cylindrical, and the vertebral segment is conical. The diameter of the column segment is equal to the diameter of the bottom surface of the vertebral segment.

7. The tire pressing apparatus according to claim 1, wherein Also includes: A sliding plate is located on the outer side of the column of the tire changer and can slide up and down along the column; The two tire pressing assemblies are located on the slide plate.

8. The tire pressing device according to claim 7, characterized in that, The mounting arms of the two tire pressing assemblies are rotatably mounted on the slide plate about an axis extending in the vertical direction.

9. A tire pressing apparatus according to claim 8, wherein Each of the tire pressure components also includes: A locking mechanism is used to lock the mounting arm in a working position close to the slide plate.

10. A tire changer characterized by, Includes the tire pressing device as described in any one of claims 1 to 9.

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