Vehicle door lower stop pin gap measuring tool

By designing a tooling fixture for measuring the gap of the lower door stop pin, the problem of inaccurate gap judgment in the detection of the lower door stop pin was solved, achieving efficient and convenient detection and improving safety and efficiency.

CN223910194UActive Publication Date: 2026-02-13SUZHOU RAIL TRANSIT OPERATION CO LTD OPERATION BRANCH II
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Patent Information

Application Number
CN202520716761.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-16
Publication Date
2026-02-13
Estimated Expiration
2035-04-16

AI Technical Summary

Technical Problem

In the existing technology, it is difficult to accurately determine the distance between the moving stop pin and the stop pin insert when detecting the lower stop pin of the car door, which may lead to inaccurate data or even cause the car door to jam, affecting driving safety.

Method used

Design a tooling for measuring the gap of the lower door stop pin, including a measuring plate, a positioning stud, a connecting workpiece and a locking nut. The tooling observes whether the lower door stop pin slides in smoothly through the detection cavity to ensure that the gap meets the requirements.

Benefits of technology

It improves the accuracy and safety of lower pin detection, reduces operational difficulty, and increases detection efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223910194U_ABST
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Abstract

The utility model discloses a vehicle door lower stop pin gap measuring tool which can be attached to a stop pin insert block and comprises two measuring plates which are symmetrically arranged, connecting workpiece grooves are formed in the ends, close to each other, of the two measuring plates, and the depths of the two connecting workpiece grooves are the same; the number of the positioning studs is two, and the positioning studs are fixed to the groove bottoms of the two workpiece connecting grooves respectively. The left end and the right end of the connecting workpiece are arranged in the two connecting workpiece grooves in a sliding mode respectively, and the left end and the right end of the connecting workpiece are each provided with a limiting notch in sliding connection with the corresponding positioning stud in a matched mode. When the tool is used, the tool is attached to the stop pin insert block at the vehicle door, and then whether the lower stop pin on the vehicle door slides into the detection cavity or not is observed when the vehicle door is closed, so that the lower stop pin can be efficiently and conveniently detected.
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Description

TECHNICAL FIELD

[0001] The utility model relates to electric passenger train door maintenance detection technical field, specifically a door lower stop pin gap measuring tool. BACKGROUND

[0002] The maintenance of each component of the subway electric passenger train is the most important for ensuring the safe operation of the subway, wherein, the door lower stop pin device and the derailment detection device are one of the most basic and important components of the vehicle, the door lower stop pin device is used for preventing the unlocking of the door caused by external force, and the derailment detection device detects whether the train derails when the train is fully automatically driven, so it plays a crucial role for the safe operation of the train.

[0003] The door lower stop pin needs to be overhauled for each operation of the electric passenger train, the door lower stop pin detection device needs to be maintained, and the distance between the movable stop pin and the stop pin block needs to be judged during the overhauling operation of the door lower stop pin, so it is difficult for the maintenance personnel to judge the distance while operating the door, which may result in inaccurate stop pin data and other consequences, and if the door lower stop pin interferes with the door sill, it may cause the door to be stuck, which seriously affects the traffic safety. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model provides a door lower stop pin gap measuring tool to solve the problems in the background art.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a door lower stop pin gap measuring tool which can be attached and arranged on the stop pin block, comprising:

[0006] The measuring plate is provided with two symmetrical parts, and the two measuring plate parts are provided with a connecting workpiece groove on the proximal end, and the groove depths of the two connecting workpiece grooves are the same;

[0007] The positioning stud is provided with two parts, and is fixed on the groove bottom of the two connecting workpiece grooves respectively;

[0008] The connecting workpiece is provided with left and right two parts, and is slidably arranged in the two connecting workpiece grooves respectively, and the left and right two parts of the connecting workpiece are provided with a limiting slot which cooperates with the positioning stud for sliding connection;

[0009] And the locking nut is provided with two parts, and is threadedly connected with the two positioning studs respectively, and the locking nut and the positioning stud can cooperatively lock and fix the connecting workpiece and the two measuring plate parts;

[0010] The rear end of the measuring plate is provided with an obliquely arranged notch, and the bottom wall of the measuring plate is integrally fixed with an embedded groove body coinciding with the notch, and the embedded groove body and the notch combine to form a detection cavity for detecting the gap between the lower door stop pin and the stop pin embedded block.

[0011] Further, as preferred, the lengths of the two connecting workpiece grooves are the same.

[0012] Further, as preferred, the length of the measuring plate is 130 mm, the width is 40 mm, and the thickness is 5 mm.

[0013] Further, as preferred, the height of the embedded groove body is 8 mm, and the groove bottom thickness is 2 mm.

[0014] Further, as preferred, the vertical distance between the left and right side walls of the embedded groove body is 20 mm.

[0015] Further, as preferred, the wall thickness of the left and right sides of the embedded groove body is 1 mm.

[0016] The above-mentioned technology is adopted, and compared with the prior art, the following beneficial effects are obtained: the novel tool is attached and arranged on the stop pin embedded block at the door, whether the lower stop pin on the door smoothly slides into the detection cavity is observed when the door is closed, if the lower stop pin smoothly slides into the detection cavity, it indicates that the distance between the lower stop pin and the groove bottom of the stop pin embedded block is greater than 2 mm, and the distance between the lower stop pin and the inner side wall of the stop pin embedded block is greater than 1 mm, so that the lower stop pin inspection becomes efficient and convenient, the safety is improved, the operation difficulty is reduced, and the operation efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is an application schematic view of a lower door stop pin gap measuring tool.

[0018] Figure 2 It is a top view structural schematic view of a lower door stop pin gap measuring tool.

[0019] Figure 3 It is a structural schematic view of a measuring plate in a lower door stop pin gap measuring tool.

[0020] Figure 4 It is a rear view structural schematic view of a lower door stop pin gap measuring tool when it is not locked.

[0021] In the figure: 1, measuring plate; 2, connecting workpiece; 3, detection cavity; 4, limiting notch; 5, locking nut; 6, positioning stud; 7, connecting workpiece groove; 8, embedded groove body; 9, notch; 10, stop pin embedded block. DETAILED DESCRIPTION

[0022] With reference to the accompanying drawings in the embodiments of the utility model, the technical scheme of the embodiments of the utility model will be clearly and completely described below.

[0023] Embodiment: please refer to the attached Figures 1-4 The utility model provides a kind of technical scheme: a car door lower stop pin gap measuring tool, it can be fitted and placed on stop pin block 10, it includes:

[0024] Measuring plate piece 1 is provided with two, and symmetrically set, the end of two measuring plate piece 1 close to is provided with connecting workpiece groove 7, and the groove depth of two connecting workpiece grooves 7 is same;

[0025] Positioning stud 6 is provided with two, and is respectively fixed on the groove bottom of two connecting workpiece grooves 7;

[0026] Connecting workpiece 2, left and right two ends are slidably set in two connecting workpiece grooves 7, and the left and right two ends of connecting workpiece 2 are all provided with the limit slot 4 of cooperation sliding connection with positioning stud 6;

[0027] And locking nut 5 is provided with two, and is respectively screwed in two positioning stud 6, and locking nut 5 and positioning stud 6 can be cooperated to lock and fix connecting workpiece 2 and two measuring plate piece 1;

[0028] Wherein, the rear end of measuring plate piece 1 is provided with the gap 9 of inclined setting, the bottom wall of measuring plate piece 1 is integrally fixed with the embedding groove body 8 coinciding with gap 9, and embedding groove body 8 and gap 9 combination form detection cavity 3 for detecting the gap between car door lower stop pin and stop pin block 10;

[0029] Specifically, the spacing of two measuring plate piece 1 can be adjusted, and is locked and fixed by nut and positioning stud 6, to realize the use of multiple scenes.

[0030] In the embodiment, the length of two connecting workpiece grooves 7 is same.

[0031] In the embodiment, the length of measuring plate piece 1 is set to 130mm, the width is set to 40mm, and the thickness is set to 5mm.

[0032] In the embodiment, the height of embedding groove body 8 is set to 8mm, and the groove bottom thickness is set to 2mm.

[0033] In the embodiment, the vertical distance between the left and right two side walls of embedding groove body 8 is set to 20mm.

[0034] In the embodiment, the wall thickness of the left and right two sides of embedding groove body 8 is all set to 1mm.

[0035] In specific implementation, the new tool is attached and arranged on the stop pin block 10 at the door, and then whether the lower stop pin on the door is involved in sliding into the detection cavity 3 is observed when the door is closed.

[0036] The above-described and above-embodied examples are only used to illustrate the technical solutions of the present application, but not to limit the same; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A door check pin gap measuring tool capable of being snugly placed on a check pin block (10) characterized by, It includes: The measuring plate (1) is provided with two symmetrical ends, and the two connecting workpiece grooves (7) are provided on the close end of the measuring plate (1), and the groove depth of the two connecting workpiece grooves (7) is the same; The positioning stud (6) is provided with two and is fixed on the groove bottom of the two connecting workpiece grooves (7) respectively; The connecting workpiece (2) is slidably arranged in the two connecting workpiece grooves (7) respectively, and the left and right ends of the connecting workpiece (2) are provided with limiting notches (4) matched with the positioning stud (6); And the locking nut (5) is provided with two and is screwed in the two positioning studs (6) respectively, and the locking nut (5) and the positioning stud (6) can cooperate to lock and fix the connecting workpiece (2) and the two measuring plate (1); Wherein, the rear end of the measuring plate (1) is provided with an inclined notch (9), the bottom wall of the measuring plate (1) is integrally fixed with an embedded groove (8) coinciding with the notch (9), and the embedded groove (8) and the notch (9) form a detection cavity (3) for detecting the gap between the door stop pin and the stop pin block (10).

2. The door check pin gap measuring tool of claim 1, wherein: The length of the two connecting workpiece grooves (7) is the same.

3. The door check gap measuring tool of claim 1, wherein: The length of the measuring plate (1) is 130mm, the width is 40mm, and the thickness is 5mm.

4. The door check gap measuring tool of claim 1, wherein: The height of the embedded groove (8) is 8mm, and the groove bottom thickness is 2mm.

5. The door check gap measuring tool of claim 1, wherein: The vertical distance between the left and right side walls of the embedded groove (8) is 20mm.

6. The door check gap measuring tool of claim 1, wherein: The wall thickness of the left and right sides of the embedded groove (8) is 1mm.