Bicycle axle outer diameter detection device
By designing a bicycle axle outer diameter detection device, which uses a vertical rod and an adjusting rod to stabilize the dial indicator position, the problems of cumbersome and costly existing detection methods are solved, achieving efficient and low-cost outer diameter detection.
Patent Information
- Application Number
- CN202520670832.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-04-10
AI Technical Summary
Existing methods for measuring the outer diameter of bicycle axles are cumbersome, labor-intensive, and costly, and existing testing fixtures cannot effectively solve this problem.
A bicycle axle outer diameter detection device was designed, comprising a base plate, an adjusting rod, a dial indicator, a locking block, and a placement slot. By using a combination of a vertical rod and an adjusting rod, the position of the dial indicator is stabilized and its position is adjustable to adapt to the detection of different outer diameters.
It improves testing efficiency and accuracy, reduces labor intensity and costs, has a wide range of applications, and is simple and convenient to operate.
Smart Images

Figure CN223910188U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to bicycle axle detection technical field, specifically, the utility model relates to a bicycle axle outer diameter detection device. BACKGROUND
[0002] After bicycle axle completes processing, carries out sampling to its outer diameter to judge whether qualified, and currently mode generally adopts caliper measurement, and can judge only reading with cooperation tolerance, and the operation steps are more and inconvenient, improve the labor intensity of production personnel, lead to low efficiency, if adopt high specification precision instrument to detect, use cost is too high.
[0003] The utility model discloses a bicycle hub bearing position size detection jig with the publication number CN 203286941U, which is disclosed on November 13, 2013, and is named as a bicycle hub bearing position size detection jig. It is composed of a male detection tool and a female detection tool. The male detection tool is composed of a shaft column, an insertion column matched with the bicycle hub bearing hole, and a handheld part. The shaft column is formed on the upper part of the insertion column, and the insertion column is formed on the upper part of the handheld part. The female detection tool is composed of a female insertion column matched with the bicycle hub bearing hole, a female handheld part, and a female detection tool hole with the same size as the outer diameter of the shaft column. The bicycle hub bearing position size detection jig cannot solve the above-mentioned technical problems. UTILITY MODEL CONTENTS
[0004] The utility model discloses a bicycle axle outer diameter detection device with simple structure, low use cost, and convenient detection operation.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme that:
[0006] The bicycle axle outer diameter detection device comprises a bottom plate, an adjusting rod is arranged above the bottom plate, a dial indicator is arranged at the end of the adjusting rod, a placing block is arranged on the bottom plate, the dial indicator is arranged above the placing block, and a placing groove is arranged on the top of the placing block.
[0007] A vertical rod is arranged on the bottom plate, a first locking block is arranged on the vertical rod, an opening is arranged on the first locking block, a first bolt is connected to the side of the first locking block, and the first locking block is used to press the vertical rod. A connecting block is fixedly connected to one side of the first locking block, and the adjusting rod penetrates through the connecting block.
[0008] A second locking block is arranged at the end of the adjusting rod, an opening is arranged on the second locking block, a second bolt is connected to the side of the second locking block, the dial indicator is arranged on the second locking block, and the dial indicator comprises a measuring rod. The measuring rod penetrates through the second locking block.
[0009] The fixing block is provided with a third locking block on the side, and the vertical rod penetrates through the third locking block.
[0010] The second locking block is fixedly connected with a sleeve on the side, and the adjusting rod is inserted into the sleeve.
[0011] The placing groove extends to the end of the placing block.
[0012] The bottom plate is provided with a material supporting frame on one side, and the material supporting frame is uniformly provided with through holes.
[0013] The opening end of the placing groove is provided with an inclined angle.
[0014] The technical effect of the utility model is that: the bicycle shaft outer diameter detection device is used, the position of the dial gauge is stabilized through the use of the vertical rod, the adjusting rod and the plurality of locking blocks, the position can be adjusted, the detection of different positions on the product and the detection of various outer diameter size products are met, the application range is wide, the measurement process is stable, the detection efficiency is high, the accuracy of judging whether the product is qualified is high; compared with the prior art, the operation process is simple and convenient, the labor intensity of production personnel can be reduced, the work efficiency is improved, the component structure in the device is simple, the manufacturing cost is low, and the use of high-cost precision measuring equipment is saved. BRIEF DESCRIPTION OF DRAWINGS
[0015] The present specification includes the following drawings, and the shown contents are respectively:
[0016] Figure 1 It is the structure schematic view of the bicycle shaft outer diameter detection device of the utility model;
[0017] Figure 2 It is the structure schematic view of the bicycle shaft outer diameter detection device of the utility model;
[0018] Figure 3 It is the installation schematic view of the first locking block of the utility model;
[0019] Figure 4 It is the installation schematic view of the second locking block of the utility model.
[0020] In the drawing, 1 is a bottom plate, 2 is a material supporting frame, 3 is an adjusting rod, 4 is a dial gauge, 5 is a placing block, 6 is a placing groove, 7 is a fixing block, 8 is a vertical rod, 9 is a through hole, 10 is an inclined angle, 11 is a first locking block, 12 is a second locking block, 13 is a third locking block, 14 is an opening, 15 is a first bolt, 16 is a second bolt, 17 is a sleeve, 18 is a connecting block, and 19 is a measuring rod. DETAILED DESCRIPTION
[0021] The specific embodiments of the present application are further described in detail below with reference to the drawings, and the purpose is to help the technical personnel in the field to have a more complete, accurate and in-depth understanding of the inventive concept and technical scheme of the present application, and to help its implementation.
[0022] As Figures 1 to 4 shown, the bicycle shaft outer diameter detection device, including the bottom plate 1, the bottom plate 1 is provided with the adjusting rod 3, the adjusting rod 3 end is provided with the dial gauge 4, the bottom plate 1 is provided with the placement block 5, the dial gauge 4 is located above the placement block 5, the placement block 5 top is provided with the placing groove 6. The adjusting rod 3 can control the height of the dial gauge 4, adapt to the detection of different outer diameter size products, the placing groove 6 is used for stabilizing the product position, the dial gauge 4 is the existing conventional dial gauge 4, and the measurement principle is: the measuring rod 19 of the dial gauge 4 is in contact with the outer surface of the bicycle shaft product, the product is rotated, and whether the product outer diameter is qualified is determined according to the swing range and amplitude of the pointer on the dial gauge 4.
[0023] As Figure 1 shown, the bottom plate 1 is provided with a vertical rod 8, the vertical rod 8 is provided with a first locking block 11, the first locking block 11 is provided with an opening 14, the first locking block 11 is connected with a first bolt 15 on the side, and the first locking block 11 is pressed against the vertical rod 8; the first locking block 11 is fixedly connected with a connecting block 18 on one side, and the adjusting rod 3 penetrates through the connecting block 18. The first bolt 15 is tightened, and the gap size of the opening 14 is reduced, so that the first locking block 11 is locked on the vertical rod 8, that is, the first locking block 11 can adjust the height on the vertical rod 8, and further drive the lifting of the dial gauge 4, and simultaneously, the connecting block 18 can be used to move the lateral position of the adjusting rod 3, so that the measuring rod 19 of the dial gauge 4 is located above the placing groove 6.
[0024] As Figure 2 shown, the adjusting rod 3 end is provided with the second locking block 12, the second locking block 12 is provided with the opening 14, the second locking block 12 is connected with the second bolt 16 on the side, and the dial gauge 4 is arranged on the second locking block 12. The dial gauge 4 includes the measuring rod 19, and the measuring rod 19 penetrates through the second locking block 12. The second locking block 12 is tightened by the second bolt 16, so that the dial gauge 4 can be locked and fixed, the stability is improved, and in the detection process, the dial gauge 4 is not stable or loose due to the contact friction between the outer surface of the product and the measuring rod 19 when the product is rotated, which affects the observation of the pointer.
[0025] As Figure 1 and Figure 2As shown, the bottom plate 1 is also provided with a fixed block 7, the third locking block 13 is arranged on the side of the fixed block 7, and the vertical rod 8 passes through the third locking block 13. The structure of the third locking block 13 is the same as that of the first locking block 11. The third locking block 13 is used to stabilize the position of the vertical rod 8 and realize the rotation of the vertical rod 8 around the third locking block 13. In combination with the transverse movement of the adjusting rod 3 along the connecting block 18, the contact detection of the measuring rod 19 at different positions of the same product can be satisfied, the detection requirements can be met, and the convenience of detection can be improved.
[0026] As shown in Figure 2 , the second locking block 12 is fixedly connected with a sleeve 17 on the side, and one end of the adjusting rod 3 is inserted into the sleeve 17. The sleeve 17 is inserted and fixed at one end of the adjusting rod 3, which facilitates the disassembly of the second locking block 12 and the dial gauge 4 from the adjusting rod 3 in the later maintenance, and facilitates the maintenance and repair thereof. The sleeve 17 can also be connected with the second locking block 12 in a hinged manner, which is used to facilitate the adjustment of the dial gauge 4 to an inclined posture, and facilitates the observation of the operator.
[0027] As shown in Figure 1 and Figure 2 , the placing groove 6 extends to the end of the placing block 5. After the product is placed on the placing groove 6, the two ends of the product can extend out of the placing groove 6, which facilitates the rotation of the product by the hands of the operator, and the convenience of use is high.
[0028] As shown in Figure 1 and Figure 2 , the bottom plate 1 is provided with a material supporting frame 2 on one side, and the material supporting frame 2 is uniformly provided with through holes 9. The through holes 9 can be used for batch placing of products to be detected, and the detection efficiency is improved.
[0029] As shown in Figure 2 , the placing groove 6 is provided with an inclined angle 10 at the end of the opening 14. The arrangement of the inclined angle 10 makes the product placed in the groove stable under force. The placing block 5 is made of profile steel, and the placing groove 6 is arranged in the middle of the four faces. According to the requirements, different sizes of inclined angles 10 can be arranged to satisfy the stable placement of products with different outer diameters.
[0030] The components of the bicycle shaft outer diameter detection device are easy to obtain, and the manufacturing cost is low. The vertical rod 8 and the adjusting rod 3 can be made of waste steel strips, the placing block 5 can be made of waste profile steel, and the dial gauge 4 can be used with the existing dial gauge 4, without the need for separate manufacturing.
[0031] The detection method is as follows: the product to be detected is placed horizontally on the placing groove 6, the dial gauge 4 is lifted to make the measuring rod 19 contact the outer surface of the product, the operator controls the rotation of the product by hand, and judges according to the floating condition of the pointer of the dial gauge 4. If the pointer swings in a small range, the product outer diameter quality is qualified, and if the pointer swings too much and obviously exceeds the upper and lower limits of the tolerance, the product outer diameter quality is unqualified.
[0032] The bicycle shaft outer diameter detection device stabilizes the position of the dial gauge 4 through the use of the vertical rod 8, the adjusting rod 3 and the plurality of locking blocks, and realizes that the position is adjustable, satisfies the detection of different positions on products and the detection of products of various outer diameter sizes, has wide application range, and is stable in the measurement process, high in detection efficiency and high in accuracy of judging whether products are qualified; compared with the prior art, the operation process is simple and convenient, the labor intensity of production personnel can be reduced, the work efficiency is improved, the component structure in the device is simple, the manufacturing cost is low, and the high cost of using precision measuring equipment is saved.
[0033] The utility model is described exemplarily above in combination with the drawings. Obviously, the utility model concrete implementation is not limited by the above-mentioned mode. As long as various non-essential improvements are carried out by adopting the method concept and technical scheme of the utility model; or the above-mentioned concept and technical scheme of the utility model are directly applied to other occasions without improvement, all are within the protection scope of the utility model.
Claims
1. A bicycle axle outside diameter detection device, characterized by: Including the bottom plate (1), the bottom plate (1) is provided with an adjusting rod (3), the end of the adjusting rod (3) is provided with a dial gauge (4), the bottom plate (1) is provided with a placing block (5), the dial gauge (4) is located above the placing block (5), and the top of the placing block (5) is provided with a placing groove (6).
2. The bicycle axle outside diameter detection device according to claim 1, characterized in that: The bottom plate (1) is provided with a vertical rod (8), the vertical rod (8) is provided with a first locking block (11), the first locking block (11) is provided with an opening (14), the first locking block (11) is connected with a first bolt (15) on the side, and the first locking block (11) is pressed against the vertical rod (8); The first locking block (11) is fixedly connected with a connecting block (18) on one side, and the adjusting rod (3) penetrates the connecting block (18).
3. The bicycle axle outside diameter detection device according to claim 2, wherein: The end of the adjusting rod (3) is provided with a second locking block (12), the second locking block (12) is provided with an opening (14), the second locking block (12) is connected with a second bolt (16) on the side, the dial gauge (4) is arranged on the second locking block (12), and the dial gauge (4) comprises a measuring rod (19), the measuring rod (19) penetrates the second locking block (12).
4. The bicycle axle outside diameter detection device according to claim 3, wherein: The bottom plate (1) is further provided with a fixed block (7), the fixed block (7) is provided with a third locking block (13) on the side, and the vertical rod (8) penetrates the third locking block (13).
5. The bicycle axle outside diameter detection device of claim 4, wherein: The second locking block (12) is fixedly connected with a sleeve (17) on the side, and one end of the adjusting rod (3) is inserted into the sleeve (17).
6. A bicycle axle outerdiameter detection device according to any one of claims 1-5, characterized in that: The placing groove (6) extends to the end of the placing block (5).
7. The bicycle axle outside diameter detection device according to claim 6, wherein: The bottom plate (1) is provided with a material supporting frame (2) on one side, and the material supporting frame (2) is uniformly provided with through holes (9).
8. The bicycle axle outside diameter detection device of claim 6, wherein: The opening (14) end of the placing groove (6) is provided with an inclined angle (10).
Citation Information
Patent Citations
Bicycle hub bearing position dimension detection fixture
CN203286941U