Locking tool

CN224810846UActive Publication Date: 2026-09-29DAHON TECH (SHENZHEN) CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202522377034.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-10
Publication Date
2026-09-29
Estimated Expiration
2035-11-10

AI Technical Summary

Technical Problem

[0003]基于此,有必要针对现有技术中的扳手和专用卡具在对折叠自行车的车架进行锁紧操作时,会受到车架的空间限制,导致操作不便,难以施加足够的锁紧力的问题,提供一种锁紧工具

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224810846U_ABST
    Figure CN224810846U_ABST
Patent Text Reader

Abstract

The utility model provides a locking tool, apply to folding car. The locking tool includes operating part and transmission part, one end of operating part is connected with transmission part, the extension direction of operating part is set with the axis direction of transmission part and presents obtuse angle, to make when transmission part is connected with lock piece and drives lock piece rotation, the rotation space of operating part and first folding car pipe and second folding car pipe are all set in dislocation. The locking tool in this application uses, and transmission part is connected with lock piece, because the extension direction of operating part is set with the axis direction of transmission part and presents obtuse angle, make the rotation space of operating part and first folding car pipe and second folding car pipe are all set in dislocation, guarantee operating part in the process of driving transmission part rotation not to be subjected to the space restriction of frame, and operating part can apply enough locking force to lock piece through transmission part, improve the convenience and reliability of folding car locking operation.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of folding bicycles, and in particular to a locking tool. Background Technology

[0002] In the use and maintenance of folding bicycles, the locking and unlocking of the frame is a crucial step in ensuring riding safety and folding convenience. Currently, most tools used for locking folding bicycles are wrenches or special clamps. However, when locking the frame, wrenches and special clamps are limited by the space within the frame, making operation inconvenient and making it difficult to apply sufficient locking force. Utility Model Content

[0003] Therefore, it is necessary to provide a locking tool to address the problem that existing wrenches and special clamps are inconvenient to operate and difficult to apply sufficient locking force when locking the frame of a folding bicycle due to space limitations of the frame.

[0004] The technical solution is as follows:

[0005] On one hand, a locking tool is provided for use in a folding bicycle. The folding bicycle includes a first folding tube, a second folding tube rotatably connected to the first folding tube, and a locking member for locking the first folding tube and the second folding tube together. Both the first folding tube and the second folding tube extend in an inclined direction. The locking tool includes an operating member and a transmission member. One end of the operating member is connected to the transmission member. The extension direction of the operating member is set at an obtuse angle to the axial direction of the transmission member, so that when the transmission member is connected to the locking member and drives the locking member to rotate, the rotation space of the operating member is misaligned with both the first folding tube and the second folding tube.

[0006] In the locking tool described in the above embodiments, the transmission component and the locking component are connected accordingly. Because the extension direction of the operating component is set at an obtuse angle to the axis of the transmission component, the rotation space of the operating component is offset from both the first and second folding tubes. This ensures that the operating component is not restricted by the space of the frame while driving the transmission component to rotate, improving the convenience of locking the folding bicycle. Simultaneously, the end of the operating component furthest from the transmission component serves as the force application point, allowing for more effortless and efficient locking using the lever principle. Furthermore, the locking force on the locking component is sufficient, enhancing the practicality of the locking tool.

[0007] The technical solution will be further explained below:

[0008] In one embodiment, when the transmission member is connected to the locking member and drives the locking member to rotate, the operating member is spaced apart from both the first folding tube and the second folding tube.

[0009] In one embodiment, when the transmission member is connected to the locking member, and the operating member is rotated to the point that the axis of the operating member is in the same plane as the axis of the first folding tube or the axis of the second folding tube, the angle between the extension direction of the operating member and the tilting direction is 0° to 1°.

[0010] In one embodiment, when the transmission member is connected to the locking member, the axis of the transmission member is coaxial with the axis of the locking member.

[0011] In one embodiment, the operating element and the transmission element are integrally formed.

[0012] In one embodiment, the operating member has a first connecting portion near the end of the transmission member, and the transmission member has a second connecting portion near the end of the operating member, wherein the first connecting portion and the second connecting portion are detachably connected.

[0013] In one embodiment, the number of transmission components is at least one, each transmission component has a second connecting portion at one end and a third connecting portion at the other end, and each third connecting portion is used to connect with locking components of different specifications.

[0014] In one embodiment, the end of the operating member away from the transmission member is provided with an operating part, which is used to receive the driving force that causes the operating member to rotate about the axis of the transmission member.

[0015] In one embodiment, the operating part is configured as an operating hole.

[0016] In one embodiment, the operating hole is stepped, and the inner diameter of the end of the operating hole away from the transmission member is larger than the inner diameter of the end of the operating hole closer to the transmission member. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a front view of a locking tool used in one embodiment when performing a locking operation on a vehicle frame.

[0020] Figure 2 for Figure 1 An exploded view of the locking tool and the frame.

[0021] Figure 3 for Figure 2 A schematic diagram of the locking tool in the diagram.

[0022] Explanation of reference numerals in the attached figures:

[0023] 100. Locking tool; 110. Operating component; 111. Operating part; 1111. Operating hole; 120. Transmission component; 200. Frame; 210. First folding tube; 220. Second folding tube; 230. Locking component. Detailed Implementation

[0024] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0025] like Figure 1 and Figure 2 As shown, in one embodiment, a locking tool 100 is provided for use on a folding bicycle. The folding bicycle includes a frame 200, which includes a first folding tube 210, a second folding tube 220 rotatably connected to the first folding tube 210, and a locking member 230 for locking the first folding tube 210 and the second folding tube 220 together. Both the first folding tube 210 and the second folding tube 220 extend in an inclined direction. The locking tool 100 includes an operating member 110 and a transmission member 120, with one end of the operating member 110 connected to the transmission member 120. The extension direction of the operating member 110 (e.g., ...) Figure 1 The direction shown in A) and the axial direction of the transmission component 120 (e.g.) Figure 1The direction shown in B is set at an obtuse angle so that when the transmission member 120 is connected to the locking member 230 and drives the locking member 230 to rotate, the rotation space of the operating member 110 is misaligned with the first folding tube 210 and the second folding tube 220.

[0026] In the locking tool 100 described above, the transmission member 120 and the locking member 230 are connected in correspondence. Since the extension direction of the operating member 110 is set at an obtuse angle to the axis of the transmission member 120, the rotation space of the operating member 110 is offset from both the first folding tube 210 and the second folding tube 220. This ensures that the operating member 110 is not restricted by the space of the frame 200 during the rotation of the transmission member 120, improving the convenience of locking the folding bicycle. Simultaneously, the end of the operating member 110 furthest from the transmission member 120 serves as the force application point, allowing for more efficient and less effort-intensive locking using the lever principle. Furthermore, the locking force on the locking member 230 is sufficient, enhancing the practicality of the locking tool 100.

[0027] It should be noted that the folding vehicles in this application include, but are not limited to, folding bicycles, folding electric vehicles, and folding balance bikes.

[0028] It should be noted that the tilt direction refers to the direction in which it is set at an angle to the horizontal plane. The axis of rotation between the first folding tube 210 and the second folding tube 220 is set in the vertical direction.

[0029] It should be noted that the angle between the extending direction of the operating member 110 and the axial direction of the transmission member 120 is set as a preset angle (e.g., Figure 1 (The angle is shown as β). The value of the preset angle can be flexibly adjusted according to actual needs, as long as it ensures that the operating component 110 does not interfere with the frame 200 during the rotation of the transmission component 120 and the locking component 230. For example, the preset angle can be 120°, 135° or 150°, etc.

[0030] It should be noted that in the prior art, the operating part of the wrench and the special clamp are perpendicular to the transmission part, which causes the operating part to collide with the first folding tube 210 or the second folding tube 220 during rotation. As a result, the operating part cannot rotate smoothly for one full turn. The operating part can only rotate at small angles multiple times, which is inconvenient to operate and makes it difficult to apply sufficient locking force.

[0031] It should be noted that the rotation space of the operating component 110 refers to the trajectory space that the operating component 110 travels when the operating component 110 drives the transmission component 120 and the locking component 230 to rotate one revolution.

[0032] like Figure 1 and Figure 2As shown, optionally, when the transmission member 120 is connected to the locking member 230 and drives the locking member 230 to rotate, the operating member 110 is spaced apart from both the first folding tube 210 and the second folding tube 220. Thus, during the locking operation, the operating member 110 maintains a distance from both the first folding tube 210 and the second folding tube 220, thereby ensuring that no friction is generated between the operating member 110 and the first folding tube 210, or between the operating member 110 and the second folding tube 220, to hinder the rotation of the operating member 110, thus improving the practicality of the locking tool 100. Furthermore, the gaps between the operating member 110 and the first folding tube 210, and between the operating member 110 and the second folding tube 220, act as buffer zones, preventing the locking tool 100 from malfunctioning due to minor deformation or processing errors, thus improving the ease of manufacturing the locking tool 100.

[0033] like Figure 1 and Figure 2 As shown, optionally, when the transmission member 120 is connected to the locking member 230, and the operating member 110 rotates until its axis is in the same plane as the axis of the first folding tube 210 or the axis of the second folding tube 220, the angle between the extension direction and the tilting direction of the operating member 110 is 0° to 1°. This reduces the height of the rotation space of the operating member 110, thereby reducing the probability of interference between the operating member 110 and surrounding objects during rotation, ensuring continuous and smooth rotation of the operating member 110, and improving the practicality of the locking tool 100.

[0034] It should be noted that when the angle between the extension direction and the tilting direction of the operating member 110 is 0°, the extension direction of the operating member 110 is parallel to the tilting direction. When the angle between the extension direction and the tilting direction of the operating member 110 is greater than 0° and less than or equal to 1°, the extension direction of the operating member 110 is approximately parallel to the tilting direction.

[0035] like Figure 1 and Figure 2 As shown, optionally, when the transmission member 120 is connected to the locking member 230, the axis of the transmission member 120 is coaxial with the axis of the locking member 230. In this way, the transmission member 120 can transmit more of the driving force used to drive the operating member 110 to the locking member 230, ensuring that the locking member 230 receives sufficient locking force and improving the reliability of the locking tool 100 in the locking operation.

[0036] Specifically, in this embodiment, the axis of the locking member 230 extends vertically. The locking member 230 is located at the top or top of the connection position between the first folding tube 210 and the second folding tube 220. When the locking member 230 is located at the top of the connection position between the first folding tube 210 and the second folding tube 220, the locking tool 100 is located above the frame 200 to perform a locking operation on the locking member 230. When the locking member 230 is located at the bottom of the connection position between the first folding tube 210 and the second folding tube 220, the locking tool 100 is located below the frame 200 to perform a locking operation on the locking member 230.

[0037] In one embodiment, the operating component 110 and the transmission component 120 are integrally formed. Thus, the operating component 110 and the transmission component 120 are structurally integrated, greatly simplifying the manufacturing process of the locking tool 100. Since no additional assembly steps are required, not only is production efficiency improved, but manufacturing costs are also reduced. Furthermore, the integrally formed structure enhances the connection strength between the operating component 110 and the transmission component 120, improving the overall performance and reliability of the locking tool 100, while also bringing numerous conveniences for subsequent use and maintenance.

[0038] Specifically, in this embodiment, the connection method between the operating component 110 and the transmission component 120 has a variety of options, and they can be integrated into a structural design through casting process, injection molding technology or other feasible manufacturing processes.

[0039] In one embodiment, the operating member 110 has a first connecting portion near the end adjacent to the transmission member 120. The transmission member 120 has a second connecting portion near the end adjacent to the operating member 110. The first connecting portion and the second connecting portion are detachably connected. Thus, when a component of the locking tool 100 is damaged or a different transmission member 120 needs to be replaced to accommodate a different specification of the locking member 230, the operator can easily separate the first connecting portion from the second connecting portion and then replace the corresponding transmission member 120. This detachable connection design not only improves the flexibility of the locking tool 100 but also extends its service life and facilitates carrying and maintenance.

[0040] The first connecting part can be connected to the second connecting part by screwing, snapping, plugging, or other detachable means. Specifically, in this embodiment, the operating member 110 has a square hole at one end near the transmission member 120. The end of the transmission member 120 near the operating member 110 is plugged into the square hole, and the outer contour shape of the end of the transmission member 120 near the operating member 110 matches the inner contour shape of the square hole.

[0041] Optionally, the number of transmission components 120 is at least one, and each transmission component 120 has a second connecting portion at one end. Each transmission component 120 also has a third connecting portion at the other end, and each third connecting portion is used to connect with locking components 230 of different specifications. In this way, the operating component 110 can be used in combination with different transmission components 120 to adapt to various specifications of locking components 230, meeting the requirement of changing different transmission components 120 when performing locking operations on different specifications of locking components 230, improving the adaptability of the locking tool 100, and reducing the number of locking tools 100 carried.

[0042] Specifically, in this implementation, when faced with locking components 230 of different specifications, the operator can select the appropriate transmission component 120 for connection according to actual needs. This design greatly enhances the versatility and adaptability of the locking tool 100, enabling it to be widely used in various types of folding bikes. Simultaneously, since each transmission component 120 is relatively independent, replacement is very convenient, further improving the ease of use of the locking tool 100. In practical applications, users only need to carry one locking tool 100 containing multiple transmission components 120 to meet the locking needs of different specifications of folding bikes, eliminating the need to prepare a complete locking tool 100 for each specification of folding bike, thus saving cost and space. Furthermore, this modular design facilitates the maintenance and upgrading of the locking tool 100. When a transmission component 120 is damaged or needs replacement, only the corresponding transmission component 120 needs to be replaced, without replacing the entire locking tool 100.

[0043] The locking member 230 includes a fourth connecting part for connection with the third connecting part, the outline of which is adapted to the outline of the third connecting part. The locking member 230 can be a locking bolt or a locking nut. The cross-section of the third connecting part perpendicular to its own axis can be hexagonal, dodecagonal, or other polygonal shapes. For example, when the cross-section of the third connecting part perpendicular to its own axis is hexagonal, the corresponding fourth connecting part is a hexagonal hole or hexagonal groove that can mate with the hexagon. This design ensures a tight and stable connection between the transmission member 120 and the locking member 230, preventing loosening or slippage during the locking operation.

[0044] like Figure 2 and Figure 3 As shown, in one embodiment, the end of the operating member 110 away from the transmission member 120 is provided with an operating section 111. The operating section 111 is used to receive the driving force that causes the operating member 110 to rotate about the axis of the transmission member 120. In this way, the operating section 111 serves as a force application point, which facilitates the operator to apply driving force to the operating member 110, while also reducing slippage during the application of driving force, thereby improving the practicality and safety of the locking tool 100.

[0045] It should be noted that the design of the operating unit 111 is highly flexible and versatile, and can be customized according to actual usage needs and user habits. Specifically, the operating unit 111 can be set in a variety of different forms. For example, it can be an operating handle, which is easy for users to hold and operate, providing a good tactile experience; or it can be an operating groove, which allows users to move their fingers through the operating groove to achieve precise control; in addition, the operating unit 111 can also be designed as other types of operating structures.

[0046] like Figure 3 As shown, optionally, the operating part 111 is configured as an operating hole 1111. Thus, the design of the operating hole 1111 provides the operator with a convenient point of force application. The operator can easily apply driving force to the operating part 110 by inserting a finger or a rod-like object, thereby achieving locking or unlocking operations. This design is not only convenient and practical but also adaptable to different operating scenarios and user needs. For example, when a larger driving force is required, the operator can use a thicker force-applying component to insert into the operating hole 1111, thus completing the operation more easily. Simultaneously, the design of the operating hole 1111 also has a certain anti-slip function, reducing operational errors caused by sweaty hands or tool slippage during locking operations, further improving the safety and reliability of the locking tool 100. Furthermore, the operating hole 1111 does not increase the overall size of the locking tool 100, making it more convenient to carry and store without occupying excessive space. Moreover, the design cost of the operating hole 1111 is relatively low, not significantly increasing the manufacturing cost of the locking tool 100, while providing numerous conveniences in use.

[0047] The size and shape of the operating hole 1111 can be customized according to actual needs to meet the requirements of different locking operation scenarios. For example, the shape of the operating hole 1111 can be set to a circle, a square, or other shapes.

[0048] like Figure 2 and Figure 3As shown, specifically in this embodiment, the operating hole 1111 is stepped, and the inner diameter of the end of the operating hole 1111 furthest from the transmission member 120 is larger than the inner diameter of the end of the operating hole 1111 closest to the transmission member 120. Thus, the operating hole 1111 has segments with varying inner diameters to accommodate force-applying components with different outer diameters, thereby making it suitable for various usage scenarios and improving the practicality of the locking tool 100. For example, when fine adjustments are needed using a thinner screwdriver, a segment with a smaller inner diameter of the operating hole 1111 can be selected; while when a larger torque needs to be applied, a thicker force-applying component can be inserted into the segment with a larger inner diameter of the operating hole 1111. Furthermore, the stepped design of the operating hole 1111 enhances the stability during locking operations, reducing shaking or slippage caused by mismatch between the force-applying component and the operating hole 1111, further improving the safety and efficiency of the locking operation.

[0049] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0050] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0051] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0052] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via 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. Similarly, "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.

[0053] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0054] It should also be understood that, in interpreting the connection or positional relationships of components, although not explicitly described, connection and positional relationships are interpreted to include a range of error, which should be within the acceptable deviation range of a specific value as determined by a person skilled in the art. For example, "approximately," "about," or "substantially" can mean within one or more standard deviations, without limitation herein.

[0055] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A locking tool, characterized in that, The invention relates to a folding bicycle, which includes a first folding tube, a second folding tube rotatably connected to the first folding tube, and a locking member for locking the first and second folding tubes together. Both the first and second folding tubes extend in an inclined direction. The locking tool includes an operating member and a transmission member. One end of the operating member is connected to the transmission member, and the extension direction of the operating member is set at an obtuse angle to the axial direction of the transmission member, so that when the transmission member is connected to the locking member and drives the locking member to rotate, the rotation space of the operating member is offset from both the first and second folding tubes.

2. The locking tool according to claim 1, characterized in that, When the transmission component is connected to the locking component and drives the locking component to rotate, the operating component is spaced apart from both the first folding tube and the second folding tube.

3. The locking tool according to claim 1, characterized in that, When the transmission member is connected to the locking member, and the operating member is rotated until the axis of the operating member is in the same plane as the axis of the first folding tube or the axis of the second folding tube, the angle between the extension direction of the operating member and the tilting direction is 0° to 1°.

4. The locking tool according to claim 3, characterized in that, When the transmission component is connected to the locking component, the axis of the transmission component is coaxial with the axis of the locking component.

5. The locking tool according to claim 1, characterized in that, The operating component and the transmission component are integrally formed.

6. The locking tool according to claim 1, characterized in that, The operating component has a first connecting portion at one end near the transmission component, and the transmission component has a second connecting portion at one end near the operating component. The first connecting portion and the second connecting portion are detachably connected.

7. The locking tool according to claim 6, characterized in that, The number of transmission components is at least one, each transmission component has a second connecting portion at one end and a third connecting portion at the other end, and each third connecting portion is used to connect with locking components of different specifications.

8. The locking tool according to any one of claims 1 to 7, characterized in that, The operating member has an operating part at one end away from the transmission member, and the operating part is used to receive the driving force that causes the operating member to rotate about the axis of the transmission member.

9. The locking tool according to claim 8, characterized in that, The operating part is configured as an operating hole.

10. The locking tool according to claim 9, characterized in that, The operating hole is stepped, and the inner diameter of the end of the operating hole away from the transmission member is larger than the inner diameter of the end of the operating hole closer to the transmission member.