A tire fixing device

Abstract

This utility model discloses a tire fixing device, comprising: a rotating rod; a turntable connected to the rotating rod; a plurality of support parts disposed on the turntable and spaced apart circumferentially, each support part including first and second abutment members for abutting against the inner wall of the tire, the second abutment member having a first portion and a second portion located on opposite sides along a second direction, the second direction being parallel to or intersecting the arc surface of the inner wall of the tire, the first and second abutment members being connected along the second direction, and the first and second portions being used to extend or retract relative to the first abutment member along the second direction; a first driving assembly and a second driving assembly connected together, the first driving assembly being slidably connected to the rotating rod along the first direction, and the second driving assembly being used to connect to the first and second portions; the first driving assembly being used to slide along the rotating rod so that the second driving assembly drives the first and second portions to extend or retract relative to the first abutment member. The tire fixing device of this utility model has high applicability.

Description

Technical Field

[0001] This utility model relates to the field of tire processing technology, and in particular to a tire fixing device. Background Technology

[0002] Tires are the only part of a car that comes into contact with the road surface, and their tread pattern has a significant impact on a car's grip, drainage performance, driving comfort, and safety.

[0003] Currently, when carving patterns on tires, the tires are usually fixed on a stand. Since different tires have different sizes, different fixing components are needed to ensure the stable fixing of tires of different sizes, which leads to high processing costs. At the same time, when the tire size is not well matched with the fixing components, the inner wall of the tire is more likely to wear due to friction or pressure concentration. Utility Model Content

[0004] The purpose of this invention is to solve the problem of low applicability of existing fixing devices used for tire engraving. This invention provides a tire fixing device that can adjust the contact area of ​​the support part for tires of different sizes to ensure stable fixing of tires of different sizes. It has high applicability, eliminates the need to produce or purchase multiple different fixing devices, and effectively reduces tire processing costs.

[0005] To solve the above-mentioned technical problems, an embodiment of this utility model discloses a tire fixing device, comprising:

[0006] The rotating rod extends along the first direction;

[0007] A turntable is connected to one end of the rotating rod;

[0008] Multiple support portions are disposed on the turntable and spaced apart circumferentially along the turntable. Each support portion includes a first abutment and a second abutment for abutting against the inner wall of the tire. The second abutment has a first portion and a second portion located on opposite sides along a second direction. The second direction is parallel to or intersects the arc surface of the inner wall of the tire. Along the second direction, the second abutment is connected to the first abutment. The first portion and the second portion are used to extend or retract relative to the first abutment along the second direction.

[0009] A first drive assembly and a second drive assembly are connected to each other. The first drive assembly is slidably connected to the rotating rod along the first direction, and the second drive assembly is used to connect to the first part and the second part; wherein...

[0010] The first drive assembly is used to slide relative to the rotating rod along the first direction, so that the second drive assembly drives the first part and the second part to extend or retract relative to the first abutment.

[0011] Using the above technical solution, firstly, the multiple support parts in the embodiments of this application are used to support and fix the tire, that is, the support part in each support part is used to abut against the inner wall of the tire, so that the multiple support parts can abut against and support the tire together. At this time, the tire can be processed by an external processing device (such as an engraving device).

[0012] In actual industrial production, tire dimensions and the arc design of their inner walls vary significantly due to differences in application, vehicle type, and performance requirements. Therefore, the tire fixing device of this application embodiment can drive multiple support parts to adjust their dimensions through the cooperation of the first drive assembly and the second drive assembly with a rotating rod.

[0013] Specifically, each support includes a first abutment and a second abutment. Both abutments are used to abut against the inner wall of the tire. That is, the abutment surfaces of the first abutment and the second abutment can be fully or partially fitted against the inner wall of the tire, respectively. The embodiments of this application do not limit the degree of fit.

[0014] Meanwhile, the second abutment has a first portion and a second portion located on opposite sides along a second direction. A second drive assembly is connected to both the first and second portions, and simultaneously connected to the first drive assembly. The first drive assembly is capable of sliding along the rotating rod in a first direction. In this design, when the first drive assembly slides relative to the rotating rod in the first direction, it drives the second drive assembly, which in turn drives the first and second portions to extend or retract relative to the first abutment.

[0015] When the first and second parts extend relative to the first abutment, the area of ​​the first and second abutments used to abut against the inner wall of the tire increases, making it suitable for tires with larger dimensions (or smaller inner wall curvature). When the first and second parts retract relative to the first abutment, the area of ​​the first and second abutments used to abut against the inner wall of the tire decreases, making it suitable for tires with smaller dimensions (or larger inner wall curvature).

[0016] In other words, the above-mentioned linkage process of the first drive assembly and the second drive assembly acts on the support part to adjust the total area of ​​the second abutment and the first abutment for abutting the inner wall of the tire (hereinafter referred to as the contact area of ​​the support part), so that the support part can adapt to tires of different sizes through different contact areas.

[0017] In summary, the tire fixing device of this application embodiment can be flexibly applied to various types of tires with different sizes and / or different inner wall curvatures. It has high applicability, can reduce the need for special fixing devices for different tires, save costs, and has a wide range of application prospects.

[0018] According to another specific embodiment of the present invention, the first abutting member has a receiving groove inside, the first part and the second part are disposed on both sides of the receiving groove, and along the second direction, the first part and the second part are used to move in opposite directions to extend out of the receiving groove, or to move towards each other to retract the receiving groove.

[0019] According to another specific embodiment of the present invention, the first abutting member has a first abutting surface, the first part has a second abutting surface, and the second part has a third abutting surface, wherein: the first abutting surface is provided with a rubber pad, and / or, the second abutting surface is provided with a rubber pad, and / or, the third abutting surface is provided with a rubber pad.

[0020] According to another specific embodiment of the present invention, each of the support portions further includes a connecting rod, each connecting rod extending in a third direction, one end of the connecting rod being used to connect with the turntable, and the other end of the connecting rod being connected with the first abutment member;

[0021] The first drive assembly includes: a first sliding sleeve and a plurality of first hinge rods, the first sliding sleeve being slidably fitted onto the rotating rod in the first direction, one end of each first hinge rod being connected to the outer wall of the first sliding sleeve, and the plurality of first hinge rods being spaced apart from each other relative to the first sliding sleeve;

[0022] The second drive assembly includes: a plurality of second sliding sleeves and a plurality of hinge rod groups, wherein the plurality of first hinge rods, the plurality of second sliding sleeves, the plurality of hinge rod groups, and the plurality of support portions correspond one-to-one; wherein,

[0023] The second sliding sleeve is slidably fitted onto the connecting rod in the third direction, and the other end of each first hinge rod is connected to the outer wall of the corresponding second sliding sleeve; one end of each hinge rod group is connected to the corresponding second sliding sleeve, and the other end of each hinge rod group is connected to the first part and the second part;

[0024] The first sliding sleeve is used to slide relative to the rotating rod toward or away from the turntable along the first direction, so that the plurality of first hinge rods drive the corresponding second sliding sleeve to slide relative to the connecting rod along the third direction, so that the corresponding hinge rod group drives the first part and the second part to extend or retract relative to the first abutment.

[0025] Using the above technical solution, in the embodiments of this application, the first driving component includes a first sliding sleeve and a plurality of first hinge rods, and the second driving component includes a plurality of second sliding sleeves and a plurality of hinge rod groups. Based on this, when it is necessary to adjust the contact area of ​​the support, the operator can push the first sliding sleeve along a first direction (for example, the first sliding sleeve can be pushed along the first direction and closer to the turntable described later), so that the plurality of first hinge rods connected to the first sliding sleeve push the second sliding sleeve on the connecting rod, so that the second sliding sleeve slides along a second direction (for example, it can slide along the second direction and closer to the support). During this process, the second sliding sleeve drives the hinge rod group connected to it, and the hinge rod group can drive the second abutment to extend or retract relative to the first abutment.

[0026] According to another specific embodiment of the present invention, the tire fixing device further includes: a first locking member, which is used to fix the first sliding sleeve relative to the rotating rod.

[0027] According to another specific embodiment of the present invention, each of the hinge rod groups includes a second hinge rod and a third hinge rod, wherein...

[0028] One end of the second hinge rod is connected to the second sliding sleeve, and the other end of the second hinge rod is connected to the first part of the second abutment member;

[0029] One end of the third hinge rod is connected to the second sliding sleeve, and the other end of the third hinge rod is connected to the second part of the second abutment member;

[0030] The second hinge rod and the third hinge rod are used to move the first part and the second part toward or away from the first abutment along the second direction.

[0031] According to another specific embodiment of the present invention, the plurality of support portions are slidably disposed on the turntable in a radial manner and are used for movement in the radial direction toward or away from the center of the turntable.

[0032] According to another specific embodiment of the present invention, the turntable is provided with a plurality of first through grooves, the plurality of first through grooves being spaced apart along the circumference of the turntable, and each first through groove extending along the radial direction; the tire fixing device further includes:

[0033] The base is connected to the other end of the rotating rod;

[0034] A connecting plate is rotatably connected to the side of the turntable away from the rotating rod and is used to rotate relative to the turntable. The connecting plate is provided with multiple arc-shaped through slots, which are spaced apart around the center of the connecting plate. The multiple arc-shaped through slots, the multiple first through slots, and the multiple support parts correspond one-to-one.

[0035] Each of the support portions includes a slide rod, one end of which is connected to a connecting rod of the support portion, and the other end of which passes through the corresponding first through groove and the arc-shaped through groove, and the other end of which is slidably connected to the corresponding arc-shaped through groove;

[0036] The connecting plate is used to rotate relative to the turntable so that the slide rod, which is slidably connected in the arc-shaped through groove, moves radially along the corresponding first through groove.

[0037] For traditional tire fixing devices (such as fixing stands), in addition to the aforementioned problem of the contact area of ​​the fixing components (such as the support) not matching the size of the tire's inner wall, some current fixing components can adjust the distance between themselves and the tire to accommodate tires of different sizes (such as different diameters). However, operators often need to adjust each fixing component in the fixing assembly sequentially, which not only reduces work efficiency but also makes it impossible to ensure the consistency of the distance after adjusting all fixing components, thus failing to accurately align and fix the tire.

[0038] Using the above technical solution, the tire fixing device in this embodiment further includes a connecting plate, which cooperates with the turntable to adjust the size of the circular structure formed by the plurality of support parts that jointly supports the inner wall of the tire. Specifically, the turntable has a plurality of radially extending first through grooves, and the connecting plate has a plurality of arc-shaped through grooves spaced around the center. The plurality of first through grooves and the plurality of arc-shaped through grooves correspond to each other. At the same time, each support part includes a slide rod, which first passes through the first through groove of the turntable and then connects to the corresponding arc-shaped through groove in a slidable manner.

[0039] The operator can rotate the connecting plate so that it rotates relative to the turntable. The rotation of the connecting plate allows the slide rod to slide along the arc-shaped through groove. However, since the slide rod is also inserted into the first through groove of the turntable, and the first through groove extends radially, the slide rod is restricted by the first through groove during the rotation of the connecting plate. In fact, it will only move along the first through groove. Multiple support parts connected to the slide rod will move along their respective first through grooves, which can form a phenomenon in which multiple support parts move closer to or further away from each other relative to the center of the turntable (radially). Thus, tires of different sizes can be fixed.

[0040] More specifically, for example, the operator can rotate the connecting plate clockwise, and the sliding rod moves along the corresponding first through groove near the center of the turntable. That is, multiple support parts move closer to each other near the center of the turntable. At this time, the tire can be placed on the outer edge of the turntable. Then, the connecting plate is rotated counterclockwise, and the sliding rod moves away from the center of the turntable along the corresponding first through groove. That is, multiple support parts move away from each other near the center of the turntable, so that the support parts can abut against the inner wall of the tire, thereby achieving the effect of radially pressing outward to fix the tire.

[0041] Therefore, the tire fixing device of this application embodiment can achieve the common adjustment of multiple support parts through the cooperation of the turntable and the connecting plate. It can be understood that as long as the extension length and opening position of the multiple first through grooves of the turntable are the same, and the extension length and opening position of the multiple arc-shaped through grooves of the connecting plate are the same, it can be ensured that the sliding distance of the multiple support parts relative to the corresponding first through grooves is the same, which effectively improves the adjustment accuracy of the support parts. At the same time, the operator only needs to rotate the connecting plate to achieve synchronous adjustment of multiple support parts, which effectively improves the operator's work efficiency.

[0042] According to another specific embodiment of the present invention, the base is provided with a through hole, and a fixing sleeve is provided in the through hole. The end of the rotating rod away from the turntable passes through the fixing sleeve in the through hole and is rotatably connected to the fixing sleeve.

[0043] According to another specific embodiment of the present invention, the tire fixing device further includes: a driving member, the driving member having an output end, the output end passing through the through hole of the base and connected to the end of the rotating rod in the through hole away from the turntable, the driving member being used to drive the rotating rod to rotate circumferentially.

[0044] According to another specific embodiment of the present invention, the tire fixing device further includes: a second locking member, the second locking member being used to fix the connecting disc relative to the turntable.

[0045] Using the above technical solution, after the tire is fixed by the interaction between the multiple support parts (and the first through groove) and the connecting plate (and the arc-shaped through groove), for example, the connecting plate and the turntable can be locked by the second locking member, that is, the connecting plate and the turntable cannot rotate relative to each other. Then, the rotating rod is driven to rotate by the driving member. The rotation of the rotating rod further drives the turntable and the connecting plate to rotate synchronously. At this time, the tire that was originally fixed on the turntable by the multiple support parts can rotate with it. Finally, other tire processing devices (such as engraving devices) can be used to process the rotating tire (such as tread engraving). Attached Figure Description

[0046] Figure 1A three-dimensional representation of the tire fixing device according to an embodiment of the present invention is shown. Figure 1 .

[0047] Figure 2 A three-dimensional representation of the tire fixing device according to an embodiment of the present invention is shown. Figure 2 .

[0048] Figure 3 An exploded view of the tire fixing device according to an embodiment of the present invention is shown.

[0049] Figure 4 A partial enlargement of the tire fixing device according to an embodiment of the present invention is shown. Figure 1 .

[0050] Figure 5 A partial enlargement of the tire fixing device according to an embodiment of the present invention is shown. Figure 2 . Detailed Implementation

[0051] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0052] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0053] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the 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, they should not be construed as limitations on the utility model.

[0054] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0055] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0056] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0057] refer to Figure 1 This application provides a tire fixing device 100, including a rotating rod 110, a first drive assembly 120, four support parts 130, a second drive assembly 140, a base 160, a double-disc adjustment mechanism 170, and a drive component 180.

[0058] As can be seen, in this embodiment of the application, the rotating rod 110 moves along the first direction (e.g. Figure 1 Extending in the X direction shown in the figure, one end of the rotating rod 110 (i.e. Figure 1 The end of the rotating rod 110 (pointed in the X1 direction) is connected to the base 160. For example, the base 160 is provided with a through hole 161, and a fixing sleeve 162 is embedded in the through hole 161. The aforementioned end of the rotating rod 110 is rotatably connected to the fixing sleeve 162.

[0059] Meanwhile, the driving component 180 in this embodiment includes a drive motor 181, but is not limited thereto. The drive motor 181 also extends along the first direction and has an output end. Although the output end is not shown in the figure, it can be understood that the output end is the end of the drive motor 181 near the base 160, that is, the output end is located on the side away from the rotating rod 110 (i.e., Figure 1 (The side indicated by X1 in the middle). The output terminal passes through the aforementioned through hole 161 of the base 160, and is connected to the aforementioned end of the rotating rod 110 within the through hole 161 (i.e. Figure 1 The end (pointed to in the X1 direction) is connected, and the drive motor 181 can drive the rotating rod 110 along the circumferential direction (e.g., Figure 1 Rotate in the direction C shown in the diagram.

[0060] It should be noted that the shape and structure of the base 160 are not specifically limited in this application embodiment. As long as it can support and connect the rotating rod 110, it is within the protection scope of this application embodiment.

[0061] refer to Figure 1 and Figure 2The other end of the rotating rod 110 (i.e. Figure 2 The end (pointed to in the X2 direction) is fixedly connected to a part of the dual-disc adjustment mechanism 170. That is, as... Figure 2 As shown, the dual-disc adjustment mechanism 170 of this application embodiment includes a turntable 171 and a connecting disc 172, and the other end of the rotating rod 110 (i.e. Figure 2 The end indicated by the X2 direction is fixedly connected to one side of the turntable 171, and the other side of the turntable 171 (i.e. Figure 2 The side indicated by the X2 direction is rotatably connected to the connecting plate 172.

[0062] As mentioned above, the drive motor 181 can drive the rotating rod 110 to rotate circumferentially. Therefore, the rotating rod 110 can further drive the turntable 171 relative to the connecting plate 172 circumferentially (e.g., ...). Figure 2 Rotate in the direction C shown in the diagram.

[0063] Further, refer to Figure 1 In this embodiment of the application, the four support parts 130 are connected to the double-disc adjustment mechanism 170 (which will be described in detail later). It can be seen that the four support parts 130 are arranged at intervals along the circumference. The four support parts 130 are used to jointly abut against and support the inner wall 201 of the tire 200, thereby fixing the tire 200. On this basis, an external tread engraving device (not shown in the figure) can be used to engrave the tread on the tire 200.

[0064] It should be noted that the number of support parts 130 is not specifically limited in this application embodiment. For example, two, three, five, six, seven or other numbers of support parts 130 can be provided. As long as they can provide support for the tire 200, they are all within the protection scope of this application embodiment.

[0065] Specifically, refer to Figure 2 and combined Figure 1 Each support 130 includes a first abutment 131, a second abutment 132, and a connecting rod 133 connected to each other.

[0066] As can be seen, the first abutment 131 and the second abutment 132 are curved, and the first abutment 131 and the second abutment 132 of each support 130 can abut against the inner wall 201 of the tire 200.

[0067] The second abutment 132 has a second direction (e.g.) Figure 2The first portion 1321 and the second portion 1322 (shown in the P direction) are located on opposite sides. Exemplarily, the second direction is parallel to or intersects the arcuate surface of the tire inner wall. Along the second direction, the second abutment 132 is connected to the first abutment 131, and the first portion 1321 and the second portion 1322 of the second abutment 132 are used to extend or retract relative to the first abutment 131 along the second direction.

[0068] In addition, the four connecting rods 133 of the four support sections 130 are used to jointly connect the support section 130 to the dual-disc adjustment mechanism 170, and to perform size adjustment to accommodate different tire sizes 200, which will be described in detail later. Each connecting rod 133 is along a third direction (e.g., Figure 1 and Figure 2 Extending in the Y direction (as shown in the diagram), and with the four connecting rods 133 extending circumferentially (as shown in the diagram). Figure 1 and Figure 2 The spacing is arranged in the C direction shown in the diagram. Furthermore, it can be seen that one end of the connecting rod 133 is used to connect to the turntable 171, and the other end of the connecting rod 133 is connected to the first abutment 131.

[0069] In the embodiments of this application, a third party (such as...) Figure 1 and Figure 2 The Y direction shown in the figure refers to the direction relative to the first direction mentioned above (such as...). Figure 1 and Figure 2 The direction intersects with the X direction shown in the figure; the third direction can also be understood as the direction that intersects with the radial direction of the turntable 171 (such as the X direction shown in the figure); Figure 1 and Figure 2 The direction is parallel to the R direction shown in the figure. However, it should be noted that the mutual parallelism of the embodiments of this application is not absolute. Approximate parallelism caused by processing errors and assembly errors (for example, the included angle between two structural features is 0.8°, 1.5°, etc.) is also within the range of mutual parallelism of the embodiments of this application.

[0070] refer to Figure 1 and combined Figure 2 The first driving component 120 in this application embodiment is driven along a first direction (e.g., Figure 1 The first drive assembly 120 is connected to the rotating rod 110 in a slidable manner (shown in the X direction). The second drive assembly is used to connect with the first part 1321 and the second part 1322 of the second abutment 132. Meanwhile, the first drive assembly 120 and the second drive assembly 140 are connected to each other.

[0071] Based on this, in the embodiments of this application, the first driving component 120 is used along a first direction (such as... Figure 1The second drive assembly 140 slides relative to the rotating rod 110 in the X direction shown in the figure, so that the first part 1321 and the second part 1322 extend or retract relative to the first abutment 131.

[0072] Using the above technical solution, firstly, the multiple support portions 130 in this application embodiment are used to support and fix the tire 200. That is, the support portion 130 in each support portion 130 is used to abut against the inner wall 201 of the tire 200. Thus, the multiple support portions 130 can abut against and support the tire 200 together. At this time, the tire 200 can be processed by an external processing device (e.g., an engraving device).

[0073] In actual industrial production, due to differences in application, vehicle type, performance requirements, etc., the size of the tire 200 and the arc surface design of its inner wall 201 vary considerably. Therefore, the tire 200 fixing device of this application embodiment can drive multiple support parts 130 to adjust their size through the first drive assembly 120 and the second drive assembly 140 in conjunction with the rotating rod 110.

[0074] Specifically, each support portion 130 includes a first abutment 131 and a second abutment 132. Both abutments are used to abut against the inner wall 201 of the tire 200. That is, the abutment surfaces of the first abutment 131 and the second abutment 132 can be fully or partially fitted with the inner wall 201 of the tire 200, respectively. The embodiments of this application do not limit the degree of fit.

[0075] At the same time, the second abutment 132 has a direction along the second direction (e.g. Figure 2 The first portion 1321 and the second portion 1322 (shown in the P direction) are located on opposite sides. The second drive assembly 140 is connected to the first portion 1321 and the second portion 1322. The second drive assembly 140 is also connected to the first drive assembly 120, and the first drive assembly 120 can slide along the rotating rod 110 in the first direction. In this design structure, when the first drive assembly 120 slides relative to the rotating rod 110 in the first direction, it drives the second drive assembly 140. The second drive assembly 140 can then drive the first portion 1321 and the second portion 1322 to extend or retract relative to the first abutment 131.

[0076] When the first portion 1321 and the second portion 1322 extend relative to the first abutment 131, the area of ​​the first abutment 131 and the second abutment 132 used to abut against the inner wall 201 of the tire 200 increases. This makes it suitable for tires 200 with larger dimensions (or smaller curvature of the inner wall 201). When the first portion 1321 and the second portion 1322 retract relative to the first abutment 131, the area of ​​the first abutment 131 and the second abutment 132 used to abut against the inner wall 201 of the tire 200 decreases. This makes it suitable for tires 200 with smaller dimensions (or larger curvature of the inner wall 201).

[0077] In other words, the above-mentioned linkage process of the first drive assembly 120 and the second drive assembly 140 acts on the support part 130 so as to adjust the total area of ​​the second abutment member 132 and the first abutment member 131 for abutting the inner wall 201 of the tire 200 (hereinafter referred to as the contact area of ​​the support part 130), so that the support part 130 can adapt to tires 200 of different sizes through different contact areas.

[0078] In summary, the tire 200 fixing device of this application embodiment can be flexibly applied to various types of tires 200 with different sizes and / or different inner wall 201 curvatures. It has high applicability, can reduce the need for special fixing devices for different tires 200, save costs, and has a wide range of application prospects.

[0079] The specific structure of the tire fixing device 100 will be further described in detail below with reference to the accompanying drawings.

[0080] refer to Figure 3 and Figure 4 and combined Figure 1 In some possible implementations, the first abutment 131 and the second abutment 132 are respectively arc-shaped. The interior of the first abutment 131 has a receiving groove 13210 (e.g., Figure 4 As shown), the receiving groove 13210 penetrates the first abutment 131 along its extension direction (i.e., along the second direction, such as...). Figure 4 At both ends of the P direction shown in the figure, the second abutment 132 is provided in the receiving groove 13210, and the first part 1321 and the second part 1322 are respectively located on both sides of the receiving groove 13210.

[0081] like Figure 4 As shown, the second abutment 132 means that the first part 1321 and the second part 1322 can move along the second direction (e.g., Figure 4 The first abutment 131 of the receiving groove 13210 (as shown in the P direction) moves away from the receiving groove 13210 to extend out of the receiving groove 13210, or the first portion 1321 and the second portion 1322 can move along the second direction (as shown in the P direction) to extend out of the receiving groove 13210. Figure 4The P direction shown in the figure moves toward the receiving groove 13210 to retract the receiving groove 13210.

[0082] For example, a rubber pad (not shown in the figure) can be provided on the abutment surface (i.e., the first abutment surface) of the first abutment member 131 for abutting the inner wall 201, to buffer the force exerted by the first abutment member 131 on the inner wall 201, thereby protecting the inner wall 201 of the tire 200. For example, a rubber pad (not shown in the figure) can also be provided on the abutment surface (i.e., the second abutment surface) of the first portion 1321 for abutting the inner wall 201, and / or a rubber pad (not shown in the figure) can be provided on the abutment surface (i.e., the third abutment surface) of the second portion 1322 for abutting the inner wall 201, thereby buffering the force exerted by the second abutment member 132 on the inner wall 201, and protecting the inner wall 201 of the tire 200.

[0083] refer to Figure 2 and combined Figure 1 In some possible implementations, the first drive assembly 120 includes a first sliding sleeve 121 and four first hinge rods 122. Although Figure 1 and Figure 2 Four first hinge rods 122 are shown as an example, but the number of first hinge rods 122 is not specifically limited in the embodiments of this application. For example, two, three, five, six, seven or other numbers of first hinge rods 122 can be provided.

[0084] The second drive assembly 140 includes four second sliding sleeves 141 and four hinge rod groups 142. It can be seen that the four first hinge rods 122, the four second sliding sleeves 141, the four hinge rod groups 142, and the four support parts 130 correspond one-to-one.

[0085] Therefore, the embodiments of this application do not impose specific limitations on the number of the second sliding sleeve 141 and the hinge rod group 142. For example, two, three, five, six, seven, etc., can be set respectively.

[0086] Continue to refer to Figure 2 and combined Figure 1 The first sliding sleeve 121 is slidably fitted onto the rotating rod 110 in a first direction.

[0087] One end of each first hinge rod 122 (i.e., the end furthest from the tire 200) is connected to the outer wall of the first sliding sleeve 121, and it can be seen that along the circumferential direction (e.g. Figure 1 and Figure 2(in the direction C shown in the figure), four first hinge rods 122 are spaced apart from each other relative to the first sliding sleeve 121; the other end of each first hinge rod 122 (i.e. the end closer to the tire 200) is connected to the outer wall of the corresponding second sliding sleeve 141.

[0088] The second sliding sleeve 141 is positioned along a third direction (e.g.) Figure 1 and Figure 2 The connecting rod is slidably fitted in the Y direction (as shown in the diagram) onto the connecting rod. One side of each hinge rod assembly 142 (i.e., the side away from the tire 200) is connected to the second sliding sleeve 141, and the other side of each hinge rod assembly 142 (i.e., the side closer to the tire 200) is connected to the first abutment 131 and the second abutment 132. Furthermore, each hinge rod assembly 142 is used to slide along a third direction (e.g., the Y direction shown in the diagram) on the second sliding sleeve 141. Figure 1 and Figure 2 The sliding motion (shown in the Y direction) drives the first abutment 131 and the second abutment 132 to unfold or fold, thereby driving the first portion 1321 and the second portion 1322 to extend or retract relative to the first abutment 131.

[0089] refer to Figure 2 and Figure 3 For example, each hinge rod group 142 includes a second hinge rod 1421 and a third hinge rod 1422. It can be seen that the second hinge rod 1421 and the third hinge rod 1422 are arranged symmetrically in a figure-eight shape with respect to the connecting rod 133.

[0090] Based on this, refer to Figures 2 to 4 As can be seen, one end of the second hinge rod 1421 (i.e. the side away from the tire) is connected to the second sliding sleeve 141, and the other end of the second hinge rod 1421 (i.e. the side near the tire) is connected to the first part 1321 of the second abutment 132.

[0091] Meanwhile, one end of the third hinge rod 1422 (i.e. the side away from the tire) is connected to the second sliding sleeve 141, and the other end of the third hinge rod 1422 (i.e. the side closer to the tire) is connected to the second part 1322 of the second abutment 132.

[0092] The second hinge rod 1421 and the third hinge rod 1422 can be connected to the second sliding sleeve 141 in a third direction (e.g., Figure 2The sliding motion (in the Y direction shown in the diagram) drives the first portion 1321 and the second portion 1322 of the second abutment 132 to move in opposite directions or towards each other. When the first portion 1321 and the second portion 1322 of the second abutment 132 move in opposite directions (i.e., the first portion 1321 and the second portion 1322 extend), the second abutment 132 is in an unfolded state; when the first portion 1321 and the second portion 1322 of the second abutment 132 move towards each other (i.e., the first portion 1321 and the second portion 1322 retract), the second abutment 132 is in a folded state.

[0093] As described above, the second hinge rod 1421 and the third hinge rod 1422 are respectively connected to the first part 1321 and the second part 1322. Exemplarily, it should be noted that the second hinge rod 1421 can be connected to any position of the first part 1321 away from the aforementioned receiving groove 13210, and the third hinge rod 1422 can be connected to any position of the second part 1322 away from the aforementioned receiving groove 13210. Any connection position that can jointly drive the first part 1321 and the second part 1322 to extend or retract relative to the first abutment 131 falls within the protection scope of this application's embodiments. (Reference) Figure 5 In some possible implementations, the tire fixing device 100 further includes a first locking member 150 for fixing the first sliding sleeve 121 relative to the rotating rod 110. Exemplarily, the first locking member 150 is a bolt, and the first sliding sleeve 121 has a threaded hole for screwing into the threaded hole to fix the first sliding sleeve 121 relative to the rotating rod 110.

[0094] refer to Figures 1 to 3 In some possible implementations, it can be seen that the turntable 171 of this application embodiment has four first through slots 1711, and the four first through slots 1711 are arranged along the circumference of the turntable 171 (e.g., Figure 3 The first through slots 1711 are spaced apart in the C direction shown in the diagram, with each slot arranged radially along the turntable 171 (e.g., in the direction of C). Figure 3 As shown in the R direction, each first through slot 1711 extends along the first direction (as shown in the diagram). Figure 3 The X direction shown in the diagram penetrates the turntable 171. This application embodiment does not impose a specific limitation on the number of first through slots 1711; for example, two, three, five, six, or seven first through slots 1711 can be provided.

[0095] The connecting plate 172 is provided with four arc-shaped through slots 1721, which are spaced apart around the center of the connecting plate 172. Each arc-shaped through slot 1721 is also along the first direction (e.g., Figure 3The X-direction shown in the figure penetrates the connecting plate 172. The four arc-shaped through slots 1721 of the connecting plate 172 correspond one-to-one with the first through slot 1711 of the turntable 171, and each arc-shaped through slot 1721 has an overlapping portion with the corresponding first through slot 1711.

[0096] Meanwhile, each support portion 130 described above in this application embodiment also includes a slide rod 134. Exemplarily, the slide rod 134 is a C-shaped rod, but is not limited to this shape. It can be seen that one end of the slide rod 134 is connected to the connecting rod 133 of the support portion 130, and the other end of the slide rod 134 passes through the corresponding first through groove 1711 and the arc-shaped through groove 1721. Furthermore, the other end of the slide rod 134 is slidably connected to the corresponding arc-shaped through groove 1721, that is, the slide rod 134 can slide along the corresponding arc-shaped through groove 1721.

[0097] As mentioned above, the turntable 171 and the connecting plate 172 are rotatably connected. Thus, the connecting plate 172 can rotate relative to the turntable 171 so that the slide rod 134, which is slidably connected in the arc-shaped through groove 1721, can move along the corresponding first through groove 1711.

[0098] In some possible implementations, the tire fixing device 100 further includes a second locking member 190 for fixing the connecting disc 172 relative to the turntable 171. Exemplarily, the second locking member 190 is a bolt, and the connecting disc 172 has a threaded hole in which the bolt is screwed to fix the connecting disc 172 relative to the turntable 171.

[0099] After the multiple support parts 130 fix the tire through the above-mentioned interaction between the turntable 171 (and the first through groove 1711) and the connecting plate 172 (and the arc-shaped through groove 1721), for example, the connecting plate 172 and the turntable 171 can be locked by the second locking member 190, that is, the connecting plate 172 and the turntable 171 cannot rotate relative to each other. Then, the rotating rod 110 is driven to rotate by the drive motor 181. The rotation of the rotating rod 110 further drives the turntable 171 and the connecting plate 172 to rotate synchronously. At this time, the tire 200, which was originally fixed on the turntable 171 by the multiple support parts 130, can rotate with it. Finally, other tire processing devices (such as engraving devices) can be used to process the rotating tire (such as tread engraving).

[0100] refer to Figures 1 to 5Using the above technical solution, the tire fixing device in this embodiment further includes a connecting plate 172. The connecting plate 172 is used to cooperate with the turntable 171 to adjust the size of the circular structure formed by the plurality of support parts 130 that jointly supports the inner wall of the tire. Specifically, the turntable 171 has a plurality of radially extending first through grooves 1711, and the connecting plate 172 has a plurality of arc-shaped through grooves 1721 spaced around the center. The plurality of first through grooves 1711 and the plurality of arc-shaped through grooves 1721 correspond to each other. At the same time, each support part 130 includes a sliding rod 134. The sliding rod 134 first passes through the first through groove 1711 of the turntable 171, and then connects to the corresponding arc-shaped through groove 1721 in a slidable manner.

[0101] The operator can rotate the connecting plate 172 so that it rotates relative to the turntable 171. The rotation of the connecting plate 172 allows the slide rod 134 to slide along the arc-shaped through groove 1721. However, since the slide rod 134 is also inserted into the first through groove 1711 of the turntable 171, and the first through groove 1711 extends radially, the slide rod 134 will be restricted by the first through groove 1711 during the rotation of the connecting plate 172. In fact, it will only move along the first through groove 1711. Multiple support parts 130 connected to the slide rod 134 will move along their respective first through grooves 1711, thus forming a phenomenon in which multiple support parts 130 move closer to or further away from each other relative to the center of the turntable 171 (radially). Therefore, tires of different sizes can be fixed.

[0102] More specifically, for example, the operator can rotate the connecting plate 172 clockwise, and the slide rod 134 moves along the corresponding first through groove 1711 close to the center of the turntable 171. That is, multiple support parts 130 move closer to each other near the center of the turntable 171. At this time, the tire can be placed on the outer periphery of the turntable 171. Then, the connecting plate 172 is rotated counterclockwise, and the slide rod 134 moves away from the center of the turntable 171 along the corresponding first through groove 1711. That is, multiple support parts 130 move further away from each other near the center of the turntable 171, so that the support parts 130 can abut against the inner wall of the tire, so as to achieve the effect of radially pressing outward to fix the tire.

[0103] Therefore, the tire fixing device of this application embodiment can achieve the common adjustment of multiple support parts 130 through the cooperation of the turntable 171 and the connecting plate 172. It can be understood that as long as the extension length and opening position of the multiple first through grooves 1711 of the turntable 171 are the same, and the extension length and opening position of the multiple arc-shaped through grooves 1721 of the connecting plate 172 are the same, it can be ensured that the sliding distance of the multiple support parts 130 relative to the corresponding first through grooves 1711 is the same, which effectively improves the adjustment accuracy of the support parts 130. At the same time, the operator only needs to rotate the connecting plate 172 to achieve synchronous adjustment of multiple support parts 130, which effectively improves the operator's work efficiency.

[0104] Although the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A tire securing device, characterized by, include: The rotating rod extends along the first direction; A turntable is connected to one end of the rotating rod; Multiple support portions are disposed on the turntable and spaced apart circumferentially along the turntable. Each support portion includes a first abutment and a second abutment for abutting against the inner wall of the tire. The second abutment has a first portion and a second portion located on opposite sides along a second direction. The second direction is parallel to or intersects the arc surface of the inner wall of the tire. Along the second direction, the second abutment is connected to the first abutment. The first portion and the second portion are used to extend or retract relative to the first abutment along the second direction. A first drive assembly and a second drive assembly are connected to each other. The first drive assembly is slidably connected to the rotating rod along the first direction, and the second drive assembly is used to connect to the first part and the second part; wherein... The first drive assembly is used to slide relative to the rotating rod along the first direction, so that the second drive assembly drives the first part and the second part to extend or retract relative to the first abutment.

2. The tire fixture of claim 1, wherein, The first abutment has a receiving groove inside, the first part and the second part are disposed on both sides of the receiving groove, and along the second direction, the first part and the second part are used to move in opposite directions to extend out of the receiving groove, or to move towards each other to retract the receiving groove.

3. The tire fixture of claim 1, wherein, The first abutting member has a first abutting surface, the first part has a second abutting surface, and the second part has a third abutting surface, wherein: the first abutting surface is provided with a rubber pad, and / or, the second abutting surface is provided with a rubber pad, and / or, the third abutting surface is provided with a rubber pad.

4. The tire fixture of any of claims 1-3, wherein, in: Each of the support portions further includes: a connecting rod, each connecting rod extending in a third direction, one end of the connecting rod being connected to the turntable, and the other end of the connecting rod being connected to the first abutment member; The first drive assembly includes: a first sliding sleeve and a plurality of first hinge rods, the first sliding sleeve being slidably fitted onto the rotating rod in the first direction, one end of each first hinge rod being connected to the outer wall of the first sliding sleeve, and the plurality of first hinge rods being spaced apart from each other relative to the first sliding sleeve; The second drive assembly includes: a plurality of second sliding sleeves and a plurality of hinge rod groups, wherein the plurality of first hinge rods, the plurality of second sliding sleeves, the plurality of hinge rod groups, and the plurality of support portions correspond one-to-one; wherein, The second sliding sleeve is slidably fitted onto the connecting rod in the third direction, and the other end of each first hinge rod is connected to the outer wall of the corresponding second sliding sleeve; one end of each hinge rod group is connected to the corresponding second sliding sleeve, and the other end of each hinge rod group is connected to the first part and the second part; The first sliding sleeve is used to slide relative to the rotating rod toward or away from the turntable along the first direction, so that the plurality of first hinge rods drive the corresponding second sliding sleeve to slide relative to the connecting rod along the third direction, so that the corresponding hinge rod group drives the first part and the second part to extend or retract relative to the first abutment.

5. The tire fixture of claim 4, wherein, The tire fixing device further includes a first locking member, which is used to fix the first sliding sleeve relative to the rotating rod.

6. The tire fixture of claim 4, wherein, Each of the said hinge rod groups includes a second hinge rod and a third hinge rod, wherein, One end of the second hinge rod is connected to the second sliding sleeve, and the other end of the second hinge rod is connected to the first part of the second abutment member; One end of the third hinge rod is connected to the second sliding sleeve, and the other end of the third hinge rod is connected to the second part of the second abutment member; The second hinge rod and the third hinge rod are used to move the first part and the second part toward or away from the first abutment along the second direction.

7. The tire fixture of claim 1, wherein The plurality of support portions are slidably disposed on the turntable in a radial manner and are used for movement in the radial direction toward or away from the center of the turntable.

8. The tire fixture of claim 7, wherein, The turntable is provided with multiple first through slots, which are spaced apart circumferentially along the turntable, and each first through slot extends radially; the tire fixing device further includes: The base is connected to the other end of the rotating rod; A connecting plate is rotatably connected to the side of the turntable away from the rotating rod and is used to rotate relative to the turntable. The connecting plate is provided with multiple arc-shaped through slots, which are spaced apart around the center of the connecting plate. The multiple arc-shaped through slots, the multiple first through slots, and the multiple support parts correspond one-to-one. Each of the support portions includes a slide rod, one end of which is connected to a connecting rod of the support portion, and the other end of which passes through the corresponding first through groove and the arc-shaped through groove, and the other end of which is slidably connected to the corresponding arc-shaped through groove; The connecting plate is used to rotate relative to the turntable so that the slide rod, which is slidably connected in the arc-shaped through groove, moves radially along the corresponding first through groove.

9. The tire fixture of claim 8, wherein, The base is provided with a through hole, and a fixed sleeve is provided in the through hole. The end of the rotating rod away from the turntable passes through the fixed sleeve in the through hole and is rotatably connected to the fixed sleeve.

10. The tire fixture of claim 9, wherein, The tire fixing device further includes a driving member having an output end that passes through the through hole of the base and is connected to the end of the rotating rod in the through hole that is away from the turntable. The driving member is used to drive the rotating rod to rotate circumferentially.

11. A tyre fixing device according to any one of claims 8 to 10, characterised in that, The tire fixing device further includes a second locking member, which is used to fix the connecting disc relative to the turntable.

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