Telescopic inspection mirror for vehicle thread hole inspection evaluation
By introducing a fixed tube and guide tube structure into the industrial endoscope, the problem of image jitter caused by unstable probe position was solved, and stable detection of internal threads in threaded holes was achieved, thus improving the detection effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN HUIJIANCHE INFORMATION TECHNOLOGY CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-06-02
AI Technical Summary
When using existing industrial endoscopes to inspect the internal threads of vehicles, the unstable probe position causes image jitter, affecting the inspection results.
A telescopic inspection mirror for inspecting and evaluating internal threads in vehicle threaded holes was designed. By setting a fixed tube and a guide tube at the front end of the pipeline, the guide tube and slider structure stabilize the probe position, avoid pipeline bending, and ensure the probe moves in a straight line.
Stable probe movement was achieved, ensuring clear detection images, simplifying the detection process, and improving detection efficiency and accuracy.
Smart Images
Figure CN224317021U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of thread inspection technology, specifically a telescopic inspection mirror for inspecting and evaluating the internal threads of vehicle threaded holes. Background Technology
[0002] Used car inspection is an extremely important task that requires meticulousness and rigor to prevent overlooking any problems. It must ensure vehicle safety while also protecting the legitimate interests of both dealers and customers. During the used car buying and selling process, dealers often repair vehicles with malfunctions or damage in advance to ensure they are in good condition when sold, thus guaranteeing product quality and the dealer's reputation.
[0003] One problem that is often overlooked during maintenance and inspection is damage to the internal threads. Because it is inconvenient to inspect the internal threads, bolts are often installed directly without prior inspection, which can cause the bolts to jam halfway through the installation, further damaging the internal threads and increasing the workload and difficulty of maintenance. Therefore, using an industrial endoscope to inspect the internal threads allows for a deeper inspection inside the threaded hole, providing a more comprehensive check.
[0004] When inspecting internal threads with existing industrial endoscopes, the probe position can only be moved by hand along the tubing. Because the tubing is relatively thin and easily bent by external forces, the probe position is not very stable when conducting in-depth inspections, resulting in image jitter and making it difficult to observe a clear picture. When the image jitter is severe, looking at it for too long can easily cause dizziness and blurred vision, which urgently needs to be improved. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a telescopic inspection mirror for inspecting and evaluating the internal threads of vehicle threaded holes. This mirror solves the problem of unstable probe position causing image jitter when using industrial endoscopes to inspect the internal threads of vehicles.
[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0007] A telescopic inspection mirror for inspecting and evaluating internal threads in vehicle threaded holes includes a main unit, a pipeline connected to the main unit, and a probe fixedly installed at the front end of the pipeline. A fixing tube is fixedly sleeved on the surface of the pipeline near the probe, and a handle is fixedly attached to the end of the fixing tube away from the probe.
[0008] A fixing plate is fixed to one end of the fixing tube near the probe. A slider is fixed to one side edge of the fixing plate parallel to the fixing tube. The tube also includes a guide tube parallel to the fixing tube. A groove is provided on the guide tube. The fixing plate is slidably connected to the groove and the slider is slidably connected inside the guide tube. An elastic rubber rope is connected between the end of the slider away from the probe and the end of the guide tube.
[0009] Preferably, both the fixing tube and the guide tube are stainless steel tubes, and the handle and the fixing plate are welded and fixed to the fixing tube.
[0010] Preferably, the slider is a cylindrical component, and the slider is adapted to the shape and size of the inner cavity of the guide tube.
[0011] Preferably, the chute is arranged along the axis of the guide tube.
[0012] Preferably, the guide tube is fixed with an end cap and a buffer sealing plug at both ends, and the elastic rubber rope is connected to the end cap.
[0013] Preferably, the buffer sealing plug is a rubber plug, and the side of the buffer sealing plug away from the guide tube is hemispherical.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] When inspecting the internal threads of a threaded hole, this utility model allows the user to hold the handle, insert the guide tube into the threaded hole, and press the handle inward. This will cause the probe to move linearly along the guide tube into the threaded hole via the fixed tube, avoiding the occurrence of pipe bending near the probe and unstable probe movement. This effectively ensures a clear main unit image and is simple and convenient to use. It solves the problem of unstable probe position that easily causes image jitter when using an industrial endoscope to inspect the internal threads of a vehicle in the prior art. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the internal structure of the guide tube of this utility model;
[0018] Figure 3 This is a cross-sectional view of the guide tube of this utility model at the position corresponding to the slider.
[0019] Figure 4 This is a schematic diagram illustrating the operation and use of this utility model.
[0020] In the diagram: 1. Main unit; 2. Pipeline; 3. Probe; 4. Fixing tube; 5. Handle; 6. Fixing plate; 7. Slider; 8. Guide tube; 801. Slide groove; 9. Elastic rubber rope; 10. End cap; 11. Buffer sealing plug; 12. Threaded hole. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] like Figures 1-4 As shown, this utility model provides a technical solution: a telescopic inspection mirror for inspecting and evaluating the internal threads of a vehicle threaded hole, including a main unit 1, a pipeline 2 connected to the main unit 1, and a probe 3 fixedly installed at the front end of the pipeline 2. A fixing tube 4 is fixedly sleeved on the surface of the pipeline 2 near the probe 3, and a handle 5 is fixed to the end of the fixing tube 4 away from the probe 3.
[0023] A fixing plate 6 is fixed to one end of the fixing tube 4 near the probe 3. A slider 7 is fixed to one side edge of the fixing plate 6 parallel to the fixing tube 4. A guide tube 8 parallel to the fixing tube 4 is also included. Both the fixing tube 4 and the guide tube 8 are stainless steel tubes. The handle 5 and the fixing plate 6 are welded to the fixing tube 4.
[0024] A sliding groove 801 is provided on the guide tube 8. The sliding groove 801 is arranged along the axis of the guide tube 8. The fixing plate 6 is slidably connected to the sliding groove 801 and the slider 7 is slidably connected inside the guide tube 8. The slider 7 is a cylindrical component and the shape and size of the inner cavity of the guide tube 8 are adapted to each other.
[0025] An elastic rubber rope 9 is connected between the end of the slider 7 away from the probe 3 and the end of the guide tube 8. The two ends of the guide tube 8 are respectively fixed with end caps 10 and buffer sealing plugs 11. The elastic rubber rope 9 is connected to the end caps 10. The buffer sealing plug 11 is a rubber plug, and the side of the buffer sealing plug 11 away from the guide tube 8 is hemispherical.
[0026] Working principle:
[0027] When inspecting the internal threads of a threaded hole, hold handle 5 and insert guide tube 8 into the threaded hole, pressing it against the bottom of the hole. Buffer sealing plug 11 acts as a buffer, shock absorber, and anti-slip agent. Press handle 5 inward, and handle 5, through fixed tube 4, drives fixed plate 6 and slider 7 to move along slide groove 801 and guide tube 8 into the threaded hole. Elastic rubber rope 9 is stretched, and probe 3 moves linearly along guide tube 8 into the threaded hole, preventing unstable movement of probe 3. The fixed tube 4 prevents the pipe 2 near probe 3 from bending, effectively ensuring a clear image on the main unit 1, thus facilitating the inspection of the thread condition of the threaded hole. After use, remove it from the threaded hole, and elastic rubber rope 9 retracts, causing guide tube 8 to move relative to fixed tube 4, returning to its initial state.
[0028] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A telescopic inspection mirror for inspecting and evaluating internal threads in vehicle threaded holes, comprising a main unit (1), a pipeline (2) connected to the main unit (1), and a probe (3) fixedly installed at the front end of the pipeline (2), characterized in that: A fixing tube (4) is fixedly sleeved on the surface of the pipeline (2) near the probe (3), and a handle (5) is fixed on the end of the fixing tube (4) away from the probe (3). A fixing plate (6) is fixed to one end of the fixing tube (4) near the probe (3). A slider (7) is fixed to one side edge of the fixing plate (6) parallel to the fixing tube (4). A guide tube (8) parallel to the fixing tube (4) is also included. A groove (801) is provided on the guide tube (8). The fixing plate (6) is slidably connected to the groove (801) and the slider (7) is slidably connected inside the guide tube (8). An elastic rubber rope (9) is connected between the end of the slider (7) away from the probe (3) and the end of the guide tube (8).
2. The telescopic inspection mirror for inspecting and evaluating internal threads in vehicle threaded holes according to claim 1, characterized in that: The fixing tube (4) and the guide tube (8) are both stainless steel tubes, and the handle (5) and the fixing plate (6) are both welded and fixed to the fixing tube (4).
3. The telescopic inspection mirror for inspecting and evaluating internal threads in vehicle threaded holes according to claim 1, characterized in that: The slider (7) is a cylindrical component, and the slider (7) is adapted to the inner cavity shape and size of the guide tube (8).
4. The telescopic inspection mirror for inspecting and evaluating internal threads in vehicle threaded holes according to claim 1, characterized in that: The groove (801) is arranged along the axis of the guide tube (8).
5. The telescopic inspection mirror for inspecting and evaluating internal threads in vehicle threaded holes according to claim 1, characterized in that: The guide tube (8) is fixed with end caps (10) and buffer sealing plugs (11) at both ends, and the elastic rubber rope (9) is connected to the end caps (10).
6. The telescopic inspection mirror for inspecting and evaluating internal threads in vehicle threaded holes according to claim 5, characterized in that: The buffer sealing plug (11) is a rubber plug, and the side of the buffer sealing plug (11) away from the guide tube (8) is hemispherical.