Bicycle frame testing fixture

Abstract

The utility model relates to the technical field of centrality detection, in particular to a bicycle frame testing fixture. The bicycle frame detection tool comprises a detection seat and two detection pieces, the detection seat is provided with a plurality of detection hole groups, each detection hole group comprises two first detection holes which are arranged up and down, and the distances between the two first detection holes of the same detection hole group are different; the two detection members are arranged up and down, are both installed on the detection seat, and are connected with the detection seat through the same detection hole group. Since the distances between the two first detection holes in the same detection hole group are different, the two detection members are connected with the detection seat through the same detection hole group, so that the distance between the two detection members can be adjusted through different detection hole groups, and the distance between the two detection members can be adjusted. Therefore, different detection hole groups can be used for detecting bicycle frames with different thicknesses, so that the torsion gauge can be suitable for detecting the bicycle frames with different specifications, and the leading-in and maintenance cost of the torsion gauge can be greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of centerness detection technology, and in particular to a bicycle frame inspection tool. Background Technology

[0002] The frame is the core of a bicycle. It is the basic structure that makes up a bicycle, and it is also the skeleton and body of the bicycle. Other parts are directly or indirectly mounted on the frame.

[0003] Most existing bicycle frames use multiple steel tubes welded into a triangular structure, or bent and welded into a curved beam structure, with the latter often being S-shaped or L-shaped. During bending, the bicycle frame is prone to torsion, affecting the bicycle's balance and leading to a shorter lifespan. Current technology uses torsion gauges to detect this torsion, but these gauges are only applicable to one type of bicycle frame, resulting in poor versatility.

[0004] Therefore, there is an urgent need for a bicycle frame inspection tool to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a bicycle frame inspection tool that is suitable for detecting the torsion of bicycle frames of various specifications, thereby improving the balance performance of bicycles.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A bicycle frame inspection tool, comprising:

[0008] The detection seat has multiple sets of detection hole groups, and each detection hole group includes two first detection holes arranged downwards and upwards, and the distance between the two first detection holes in the same detection hole group is different;

[0009] Two detection elements are arranged vertically, both mounted on a detection base, and connected to the detection base via the same set of detection holes.

[0010] As a preferred technical solution for the above-mentioned bicycle frame inspection tool, each of the inspection components has multiple second inspection holes, and the distance between each second inspection hole and the inner sidewall of the inspection component is different.

[0011] As a preferred technical solution of the above-mentioned bicycle frame inspection tool, the inspection component includes a connecting part and a contact part. The connecting part is provided with a second inspection hole, and the contact part is fixedly connected to the connecting part and used to inspect the bicycle frame.

[0012] As a preferred technical solution of the above-mentioned bicycle frame inspection tool, the connecting part is rectangular and has a mounting cavity with openings at both ends. The connecting part is sleeved on the inspection seat and fixed to the inspection seat by bolts and nuts.

[0013] As a preferred technical solution of the above-mentioned bicycle frame inspection tool, the connecting part is provided with a guide protrusion into the mounting cavity, the detection seat is provided with a guide groove, and the guide protrusion matches the guide groove.

[0014] As a preferred technical solution of the above-mentioned bicycle frame inspection tool, the inspection seat has a detection center axis, and the two inspection components are arranged symmetrically along the detection center axis.

[0015] As a preferred technical solution of the above-mentioned bicycle frame inspection tool, the inspection seat has a detection center axis, and along both sides of the detection center axis, the inspection seat has a first area and a second area, and the two first inspection holes of each group of inspection holes are respectively arranged in the first area and the second area.

[0016] As a preferred technical solution for the aforementioned bicycle frame inspection tool, the inspection component has an L-shaped structure.

[0017] As a preferred technical solution of the above-mentioned bicycle frame inspection tool, the bicycle frame inspection tool further includes a positioning element, which is fixedly disposed on the side wall of the inspection tool facing the bicycle frame.

[0018] As a preferred technical solution for the above-mentioned bicycle frame inspection tool, the bicycle frame inspection tool further includes a support base, and the inspection base is fixedly installed on the top surface of the support base.

[0019] This utility model has at least the following beneficial effects:

[0020] The bicycle frame inspection fixture includes an inspection base and two inspection components. The inspection base has multiple sets of inspection hole groups, and each inspection hole group includes two first inspection holes arranged vertically, with different distances between the two first inspection holes in the same group. The two inspection components are arranged vertically and are both mounted on the inspection base, connected to the inspection base through the same set of inspection hole groups. Because the distance between the two first inspection holes in the same group of inspection hole groups is different, the distance between the two inspection components can be adjusted through different inspection hole groups. This adjustable distance allows for the inspection of bicycle frames of different thicknesses, making it suitable for inspecting bicycle frames of different specifications and significantly reducing the costs of torsion gauge installation and maintenance. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the structure of the bicycle frame inspection tool provided in this embodiment of the utility model;

[0023] Figure 2 A front view of the bicycle frame inspection fixture provided in an embodiment of this utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the detection component provided in an embodiment of the present utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the detection seat and support seat after installation according to an embodiment of the present utility model;

[0026] Figure 5 The front view of the detection seat and support seat after installation according to an embodiment of this utility model.

[0027] In the picture:

[0028] 1. Detection seat; 11. First detection hole; 12. Guide groove; 13. Detection center shaft; 14. First zone; 15. Second zone; 2. Detection component; 21. Connecting part; 211. Second detection hole; 212. Mounting cavity; 213. Guide protrusion; 22. Contact part; 3. Positioning component; 4. Support seat. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0033] To address the issue of poor versatility of torsion gauges used for detecting bicycle frame torsion in existing technologies, this embodiment provides a bicycle frame inspection tool capable of detecting whether a bicycle frame is tortuous, facilitating timely correction. This bicycle frame inspection tool can detect the torsion of bicycle frames of different specifications, exhibiting high versatility.

[0034] like Figures 1 to 5 As shown, the bicycle frame inspection fixture includes an inspection base 1 and two inspection components 2. The inspection base 1 has multiple sets of inspection hole groups, and each inspection hole group includes two first inspection holes 11 arranged downwards and upwards, and the distance between the two first inspection holes 11 in the same inspection hole group is different. The two inspection components 2 are arranged vertically, and both inspection components 2 are installed on the inspection base 1, and the two inspection components 2 are connected to the inspection base 1 through the same set of inspection hole groups.

[0035] Since the distance between the two first detection holes 11 in the same group of detection holes is different, the two detection pieces 2 are connected to the detection seat 1 through the same group of detection holes. In this way, the distance between the two detection pieces 2 can be adjusted through different groups of detection holes. The distance between the two detection pieces 2 can be adjusted, so different groups of detection holes can be used to detect bicycle frames of different thicknesses. This is applicable to the detection of bicycle frames of different specifications, which can greatly reduce the cost of introducing and maintaining torsion gauges.

[0036] Specifically, such as Figure 1 , Figure 2 and Figure 3As shown, each testing element 2 has multiple second testing holes 211. The distance between each second testing hole 211 and the inner sidewall of the testing element 2 is different. Different second testing holes 211 on the same testing element 2 can be matched with the second testing holes 211 on another testing element 2. That is, the second testing holes 211 set on the upper testing element 2 and the second testing holes 211 set on the lower testing element 2 are set in a one-to-one correspondence. This can be applied to bicycle frames of different specifications.

[0037] It should be noted that different specifications refer to differences in the thickness and / or length of the bicycle frame.

[0038] In some embodiments, continue to refer to Figure 3 The detection component 2 includes a connecting part 21 and a contact part 22. The connecting part 21 is provided with a second detection hole 211. The contact part 22 is fixedly connected to the connecting part 21 and is used to detect the bicycle frame. The connecting part 21 is provided to ensure that the detection component 2 can be connected to the detection seat 1, while the contact part 22 is used by the operator to manually observe whether the bicycle frame has twisted.

[0039] Specifically, the connecting part 21 is rectangular and has a mounting cavity 212 with openings at both ends. The connecting part 21 is sleeved on the detection seat 1 and connected to the detection seat 1 by bolts and nuts. The second detection hole 211 passes through the connecting part 21, that is, the two oppositely arranged side walls of the connecting part 21 have the second detection hole 211. One end of the bolt passes through the two second detection holes 211 and is threadedly connected to the nut. In this way, the purpose of fixing the detection seat 1 and the detection piece 2 can be achieved.

[0040] To facilitate sliding, a guide protrusion 213 is provided in the mounting cavity 212 of the connecting part 21, and a guide groove 12 is provided in the detection seat 1, with the guide protrusion 213 matching the guide groove 12. The guide protrusion 213 is located within the guide groove 12 and can slide relative to the guide groove 12. The guide protrusion 213 slides along the length of the guide groove 12, thus preventing the connecting part 21 from shifting during sliding and affecting the movement of the detection element 2.

[0041] For example, the detection element 2 has an L-shaped structure. A specific shape for the detection element 2 is provided here; any shape that enables the detection of the bicycle frame's torsion is within the protection range.

[0042] In some embodiments, combined with Figure 4 and Figure 5 As shown, the testing base 1 has a testing center axis 13, and the two testing components 2 are symmetrically arranged along the testing center axis 13. This ensures that the two testing components 2 are suitable for bicycle frames of different sizes after installation.

[0043] Furthermore, the detection seat 1 has a detection central axis 13. Along both sides of the detection central axis 13, the detection seat 1 has a first region 14 and a second region 15. The two first detection holes 11 of each group of detection holes are respectively disposed in the first region 14 and the second region 15. In this way, the first detection holes 11 in the same group of detection holes are arranged axially symmetrically with respect to the detection central axis 13. The distances from each first detection hole 11 located in the first region 14 to the detection central axis 13 are different. The distances from the first detection holes 11 located in different regions (that is, in the first region 14 and the second region 15) in the same group of detection holes to the detection central axis 13 are the same.

[0044] In some embodiments, continue to refer to Figures 1 to 3 The bicycle frame inspection fixture also includes a positioning element 3, which is fixedly disposed on the side wall of the inspection element 2 facing the bicycle frame. Specifically, the positioning element 3 has the same shape as the inspection element 2, that is, the positioning element 3 is also an L-shaped structure. A specific shape of the positioning element 3 is provided here; as long as it can achieve contact with the bicycle frame, it is within the protection range.

[0045] In some embodiments, the bicycle frame inspection tool further includes a support base 4, with the inspection seat 1 fixedly mounted on the top surface of the support base 4. The support base 4 provides support for the inspection seat 1 so that the bicycle frame inspection tool can be moved as needed.

[0046] The bicycle frame gauge provided by this utility model has 15 sets of inspection holes of different diameters, thus the bicycle frame gauge provided in this embodiment can replace the original 15 sets of gauges. Figures 1 to 3 As shown, the outer surface of the test piece 2 is marked with the outer diameter of the pipe corresponding to each second test hole 211. For example, the four diameters marked from left to right in the first row are 49mm, 50mm, 52mm and 54mm, the four diameters marked from left to right in the second row are 46mm, 45mm, 43mm and 42mm, the three diameters marked from left to right in the third row are 37mm, 39mm and 40mm, and the four diameters marked from left to right in the fourth row are 32mm, 34mm, 35mm and 36mm.

[0047] The process of using the bicycle frame inspection tool is as follows:

[0048] Confirm the outer diameter of the tubing according to the bicycle frame manufacturing drawings;

[0049] According to the outer diameter of the pipe fitting, slide the upper and lower detection pieces 2 to adjust to the position of the first detection hole 11 of the corresponding size;

[0050] Insert the bolt into the hole and tighten it with the nut on the other side;

[0051] Next, during bicycle frame straightening, the bicycle frame can be inspected, and the amount of torsion can be corrected in a timely manner through calibration;

[0052] Finally, a routine bicycle frame calibration and inspection are performed.

[0053] Furthermore, the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A bicycle frame testing device, characterized by, The utility model relates to a bicycle frame testing fixture, including: A detection seat (1) has a plurality of detection hole groups, and each detection hole group includes two first detection holes (11) arranged in a lower-upper mode, and the distance between the two first detection holes (11) of the same detection hole group is different; Two detection pieces (2) are arranged in an upper-lower mode, and the two detection pieces (2) are installed on the detection seat (1) and connected with the detection seat (1) through the same detection hole group.

2. Bicycle frame tester according to claim 1, characterized in that Each detection piece (2) has a plurality of second detection holes (211), and the distance between each second detection hole (211) and the inner side wall of the detection piece (2) is different.

3. A bicycle frame tester as claimed in claim 2, characterised in that, The detection piece (2) includes a connecting part (21) and a contact part (22), the connecting part (21) is provided with the second detection hole (211), and the contact part (22) is fixedly connected with the connecting part (21) and used for detecting the bicycle frame.

4. A bicycle frame tester as claimed in claim 3, characterised in that, The connecting part (21) is rectangular, has an installation cavity (212) with two open ends, is sleeved on the detection seat (1) and connected with the detection seat (1) through bolts and nuts.

5. A bicycle frame tester as claimed in claim 4, wherein, The connecting part (21) is provided with a guide protrusion (213) in the installation cavity (212), the detection seat (1) is provided with a guide groove (12), and the guide protrusion (213) is matched with the guide groove (12).

6. Bicycle frame testing device according to any of claims 1-5, characterized in that The detection seat (1) has a detection center axis (13), and the two detection pieces (2) are arranged in a central axis symmetry mode along the detection center axis (13).

7. Bicycle frame testing device according to any of claims 1-5, characterized in that The detection seat (1) has a detection center axis (13), and along the two sides of the detection center axis (13), the detection seat (1) has a first area (14) and a second area (15), and the two first detection holes (11) of each detection hole group are arranged in the first area (14) and the second area (15) respectively.

8. Bicycle frame testing device according to any of claims 1-5, characterized in that The detection piece (2) is of an L-shaped structure.

9. Bicycle frame testing device according to any of claims 1-5, characterized in that The bicycle frame testing fixture further includes a positioning piece (3) fixedly arranged on the side wall of the detection piece (2) facing the bicycle frame.

10. Bicycle frame testing device according to any of claims 1-5, characterized in that The bicycle frame testing fixture further includes a support seat (4), and the detection seat (1) is fixedly installed on the top surface of the support seat (4).

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