Subway train passenger room door bearing mechanism inspection auxiliary device
By designing inspection auxiliary devices, the problem of unstable observation angle of the endoscope in a narrow space is solved, the equipment protection and the safety of the operators are achieved, and the inspection efficiency and accuracy are improved.
Patent Information
- Application Number
- CN202421915420.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-08
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-08-08
AI Technical Summary
Traditional endoscopy is difficult to adjust the observation angle stably in a narrow space, resulting in damage to the inspection device and discomfort of the operator, affecting the inspection efficiency and accuracy.
A subway train passenger room door bearing mechanism inspection auxiliary device is designed, including inspection auxiliary blocks and safety rope structures, which are fixed to the edge of the exterior trim through projections and grooves, providing a stable observation hole and fixing device to prevent the endoscope from being suspended and collision, and prevent personnel from falling through safety ropes.
The stable observation angle adjustment of the endoscope in a narrow space is realized, the safety of equipment and personnel is protected, the inspection efficiency and accuracy are improved, and the working position of the operator is improved.
Smart Images
Figure CN223259541U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of subway train passenger compartment door inspection and repair, in particular to a subway train passenger compartment door bearing mechanism inspection auxiliary device. Background Art
[0002] Traditionally, the passenger compartment door load-bearing mechanism is inspected by removing the exterior trim and visually inspecting its overall condition. This traditional inspection method requires the cooperation of multiple workers, a wide variety of tools, a large workload, and a long time-consuming process. The exterior trim is large and heavy, posing a certain risk of falling during disassembly and assembly. Frequent disassembly and assembly of the exterior trim may cause irreversible damage to its components, significantly shortening its service life.
[0003] Later, endoscopy was used. This device, capable of inspecting the condition of components within the confined space of the door's support structure, allows for non-disassembly inspection. Light from the device is transmitted through a fiber optic cable, through the endoscope body, into the confined space, illuminating the area requiring inspection. The camera then captures the image directly on the handheld device, eliminating the need for frequent cover removal and adverse environmental factors, thereby improving safety.
[0004] Compared with the original inspection technology, the advantages of endoscopic inspection are that it uses fewer tools, is safe and risk-free, significantly reduces the number of operators, greatly improves work efficiency, and can record the condition of the load-bearing structure without causing damage to the exterior panels.
[0005] However, even with an endoscope, inspections still face challenges. Because the endoscope's camera is positioned using a rigid wire, inspectors must constantly adjust their hand movements to locate the inspection points on the door's support structure after probing the endoscope deep into the exterior panel. Even after locating the inspection points, the constant vibration of the endoscope's lens prevents stable inspection.
[0006] The passenger compartment door bearing mechanism has a narrow inspection space and a complex structure. Some parts that need to be inspected are located at difficult angles, and the exterior panels are at a certain height. Inspectors need to manually hold the endoscope and insert it into the narrow space. The inspection device is suspended for a long distance without additional fixing devices, making it difficult to maintain the stability of the endoscope for a long time. Constant collisions will cause the observation angle to be unstable, which will also cause irreversible damage to the inspection device.
[0007] In summary, traditional endoscopes or adjustable-angle endoscopes cannot meet the requirements for accurate, convenient, and rapid adjustment of required angles in narrow spaces. Confirming the status of various components brings many inconveniences, consumes more time, and also affects the accuracy of inspection. Long-term, frequent lifting movements can also cause physical discomfort to operators. Therefore, without resolving the above-mentioned issues, it is necessary to propose an auxiliary device for inspecting the load-bearing mechanism of subway train passenger compartment doors. Utility Model Content
[0008] The purpose of the present utility model is to provide an auxiliary device for inspecting the load-bearing mechanism of a passenger compartment door of a subway train. By using an endoscopic inspection method in conjunction with the device, an operator can quickly and accurately adjust various required observation angles through the designed observation hole, thereby solving the problem that the suspended part of the endoscopic inspection device in a narrow space has no additional fixing device and is often damaged by collisions. At the same time, it also plays the role of fixing the wire harness protection device for the endoscopic inspection equipment, and solves the problem of poor posture of the operator during inspection, allowing the operator to complete the inspection work with normal station salary, thereby improving the work efficiency and the accuracy of the inspection results, and improving the rationality of the operator's working posture. A fall prevention safety rope structure is designed to prevent the operator from being hit by the auxiliary device that accidentally falls, and also protect the device from accidental damage caused by various reasons, so as to solve the problems raised in the above-mentioned background technology.
[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an auxiliary inspection device for a passenger compartment door bearing mechanism of a subway train, comprising an elongated auxiliary inspection block, one side of which is integrally provided with a raised portion, a first groove for clamping on the edge of the exterior panel is provided between the bottom of the raised portion and the side of the auxiliary inspection block, the first groove is provided as a groove of a rounded obtuse angle barb structure, a coaxially arranged and connected mounting hole and an observation hole for installing an endoscope are provided on the auxiliary inspection block, the observation hole is provided as a trumpet-shaped observation hole, and a block is installed inside the mounting hole to prevent the endoscope from falling.
[0010] Preferably, both ends of the inspection auxiliary block are provided with second grooves for finger gripping, the inner wall of the second groove is set to be a spherical surface, and the inner wall of the second groove is provided with anti-slip grooves.
[0011] Preferably, rope threading holes are provided at the lower ends of the adjacent two sides of the inspection auxiliary block, and the two groups of rope threading holes are vertically arranged and connected, and a safety rope for tying on the wrist is provided inside the rope threading holes.
[0012] Preferably, the diameter of the lower end of the stopper is equal to the inner diameter of the top of the observation hole, and the diameter of the top of the stopper is smaller than the diameter of the bottom.
[0013] Preferably, the side edges of the inspection auxiliary block are provided with arc chamfers.
[0014] Compared with the prior art, the beneficial effects of the present invention are:
[0015] 1. The utility model uses the endoscope inspection method in conjunction with the device, allowing the operator to quickly and accurately adjust the required observation angles through the designed observation hole, solving the problem of the endoscope inspection device being suspended in a narrow space without additional fixing devices and being frequently damaged by collisions. It also plays the role of fixing the wire harness protection device for the endoscope inspection equipment.
[0016] 2. The utility model solves the problem of poor posture of operators during inspection, allowing operators to complete the inspection work in a normal standing position, improving the work efficiency and the accuracy of the inspection results, and improving the rationality of the operators' working posture. It also designs an anti-fall safety rope structure to prevent operators from being hit by accidentally dropped auxiliary devices, and also protects the device from accidental damage due to various reasons. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a three-dimensional diagram of the utility model;
[0018] Figure 2 It is a cross-sectional view of the present utility model.
[0019] In the figure: 1. Inspection auxiliary block; 2. Arc chamfer; 3. Raised portion; 31. First groove; 4. Second groove; 5. Safety rope; 6. Mounting hole; 7. Stop block; 8. Rope hole; 9. Observation hole. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0021] See also Figure 1-2The present invention provides a technical solution: an auxiliary inspection device for a passenger compartment door bearing mechanism of a subway train, comprising an elongated auxiliary inspection block 1, one side of which is integrally formed with a raised portion 3, a first groove 31 for being clamped on the edge of an exterior panel is provided between the bottom of the raised portion 3 and the side of the auxiliary inspection block 1, the first groove 31 being a groove with a rounded obtuse angle barb structure, which ensures that the endoscope can quickly reach the position of the observation hole 9 according to the prescribed path while also ensuring that the endoscope cannot fall out of the device, thereby achieving a protective effect;
[0022] The inspection auxiliary block 1 is provided with a coaxially arranged and connected mounting hole 6 and an observation hole 9 for mounting an endoscope. The observation hole 9 is configured as a trumpet-shaped observation hole. A stopper 7 is installed inside the mounting hole 6 to prevent the endoscope from falling.
[0023] It solves the problems faced when inspecting the door bearing mechanism in a narrow space, such as the inability to freely adjust the observation angle, frequent collisions between the endoscope inspection device and internal components, and the operators' prolonged poor working posture, as well as the risk of operators being injured and equipment being damaged.
[0024] The first groove 31 is clamped on the edge of the outer decorative plate to prevent it from moving forward and backward, while also ensuring the stability of the left and right movement of the device.
[0025] Both ends of the inspection auxiliary block 1 are provided with a second groove 4 for finger grasping, the inner wall of the second groove 4 is set to a spherical surface, and the inner wall of the second groove 4 is provided with anti-slip grooves. The anti-slip grooves can increase the friction coefficient between the inspection auxiliary block 1 and the fingers, ensuring that the operator will not slip and lose stability.
[0026] Rope holes 8 are provided at the lower ends of the adjacent two sides of the inspection auxiliary block 1. The two groups of rope holes 8 are vertically arranged and connected. Safety ropes 5 for tying around the wrists are provided inside the rope holes 8 to protect the safety of the operator and accidental damage to the auxiliary equipment.
[0027] The diameter of the lower end of the stopper 7 is equal to the inner diameter of the top of the observation hole 9, and the diameter of the top of the stopper 7 is smaller than the diameter of the bottom.
[0028] The side edges of the inspection auxiliary block 1 are provided with arc chamfers 2 to increase the aesthetics of the device.
[0029] When in use, taking the technical requirements for the inspection of the bearing mechanism of the Nanjing Metro's external closed passenger compartment door as an example, according to the technical regulations for the inspection of the compartment door bearing mechanism, it is necessary to check the appearance and fastening of all the above components, and to confirm that the door bearing guide rails are firmly installed and the color coding is normal. Some of the bearing guide rails have obstructions under the fixing screws, and need to be cut at a certain angle to confirm whether their color coding is normal. At this time, the endoscope inspection auxiliary device can be used to quickly and conveniently fix the required inspection angle;
[0030] Then fix the first groove 31 on the edge of the exterior panel in the required direction, so as to efficiently confirm its firmness and whether the color code is normal. Similarly, the inspection of the rubber buffer head bolt and the rubber block also need to be confirmed from different angles; especially the position confirmation of the load-bearing wheel and the anti-jump wheel, whether the color code of the ST anti-loosening nut is normal, and whether the flange of the stop gasket is tightly against the anti-loosening nut. Due to the particularity of its structure, it involves inspection points at various angles. It is only necessary to insert the endoscope into the observation hole 9 to realize inspections at different angles, so as to determine whether the flange of the stop gasket is tightly against the anti-loosening nut.
[0031] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A subway train passenger compartment door bearing mechanism inspection auxiliary device, characterized by: The invention comprises a long strip-shaped inspection auxiliary block (1), wherein a protrusion (3) is integrally formed on one side of the inspection auxiliary block (1), and a first groove (31) for being clamped on the edge of the exterior panel is provided between the bottom of the protrusion (3) and the side of the inspection auxiliary block (1), wherein the first groove (31) is provided as a groove of a rounded obtuse angle barb structure, and the inspection auxiliary block (1) is provided with a coaxially arranged and connected mounting hole (6) and an observation hole (9) for mounting an endoscope, wherein the observation hole (9) is provided as a trumpet-shaped observation hole, and a stopper (7) for preventing the endoscope from falling is provided inside the mounting hole (6).
2. The subway train passenger compartment door load-bearing mechanism inspection auxiliary device according to claim 1, characterized in that: Both ends of the inspection auxiliary block (1) are provided with second grooves (4) for finger gripping, the inner wall of the second groove (4) is provided with a spherical surface, and the inner wall of the second groove (4) is provided with anti-slip grooves.
3. The subway train passenger compartment door load-bearing mechanism inspection auxiliary device according to claim 1, characterized in that: The lower ends of the adjacent two sides of the inspection auxiliary block (1) are each provided with a rope threading hole (8), and the two groups of the rope threading holes (8) are vertically arranged and connected, and a safety rope (5) for tying to the wrist is provided inside the rope threading hole (8).
4. The subway train passenger compartment door load-bearing mechanism inspection auxiliary device according to claim 1, characterized in that: The diameter of the lower end of the stopper (7) is equal to the inner diameter of the top of the observation hole (9), and the diameter of the top of the stopper (7) is smaller than the diameter of the bottom.
5. The subway train passenger compartment door load-bearing mechanism inspection auxiliary device according to claim 1, characterized in that: The side edges of the inspection auxiliary block (1) are provided with arc chamfers (2).