Detection tool capable of detecting length of air bag drawstring

By designing a test fixture that can check the length of the airbag drawstring and using components such as positioning pins and induction detectors, the problems of large errors, missed detections and wrong detections in airbag drawstring size detection have been solved, and automated detection and accurate classification of abnormal products have been achieved.

CN223361416UActive Publication Date: 2025-09-19HMT XIAMEN NEW TECHN MATERIALS
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Patent Information

Application Number
CN202422955704.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-02
Publication Date
2025-09-19
Estimated Expiration
2034-12-02

AI Technical Summary

Technical Problem

The existing technology for detecting the size of airbag drawstrings has problems such as large errors, missed detections, and wrong detections, which result in abnormal products flowing into the customer's end.

Method used

A testing fixture for checking the length of airbag drawstrings was designed. It includes a positioning pin, a sensing area, and an induction detector. Combined with an ink cartridge, a control module, and a buzzer, it realizes automatic detection and marking, and counts the number of qualified and unqualified drawstrings.

Benefits of technology

It realizes the automatic detection of the length of the airbag drawstring, reduces missed detection and wrong detection, improves the detection efficiency and accuracy, and facilitates the recording and classification of abnormal products.

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Abstract

The utility model discloses a testing fixture capable of testing the length of an air bag drawstring, the surface of the testing fixture is provided with a positioning pin, one side of the testing fixture far away from the positioning pin is also provided with an induction zone, the positioning pin is matched with the drawstring head of the air bag drawstring, the induction zone is internally provided with an induction detector, and the air bag drawstring is arranged in the induction detector. And the sensing detector is used for sensing the position of the air bag drawstring. According to the utility model, the positioning pin is arranged on the surface of the detection tool and is matched with the induction detector, so that the fixation of the air bag drawstring and the automatic detection of the length of the air bag drawstring are realized, and the situation of missing detection or wrong detection easily occurring during manual detection is avoided.
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Description

Technical Field

[0001] The utility model belongs to the technical field of air bag drawstrings, and in particular relates to a checking tool capable of checking the length of an air bag drawstring. Background Art

[0002] With the improvement of people's consumption level, more and more people use cars as a means of transportation, and the safety hazards caused by traffic accidents are also increasing significantly. Equipping cars with airbags is an effective way to solve safety problems.

[0003] The size of the airbag drawstring directly impacts the smooth assembly of the airbag, so it's listed as a CC / SC characteristic (critical / important characteristic) by customers. Our conventional inspection tool for this type of dimension is a steel ruler. However, this measurement is significantly affected by external factors, such as deviations caused by improper inspection methods and operator misreading due to visual fatigue. This makes the control of airbag drawstring dimensions ineffective. Furthermore, it's prone to missed inspections, resulting in defective products being delivered to customers. Utility Model Content

[0004] The utility model provides a checking tool for checking the length of an air bag drawstring, which can effectively solve the above problem.

[0005] The utility model is achieved in this way:

[0006] A checking fixture for checking the length of an airbag drawstring is provided with a positioning pin on its surface and a sensing area on a side of the checking fixture away from the positioning pin. The positioning pin is adapted to fit the drawstring head of the airbag drawstring. An inductive detector is provided in the sensing area for sensing the position of the airbag drawstring.

[0007] As a further improvement, an ink cartridge is further installed at the bottom of the positioning pin, and the ink cartridge is used to mark the drawstring head of the airbag drawstring.

[0008] As a further improvement, a control module is further provided on the side of the inspection tool close to the sensing area. The control module includes a start switch, a counting display screen and a buzzer. The start switch is electrically connected to the counting display screen and the buzzer respectively, and the counting display screen is also wirelessly connected to the induction detector.

[0009] As a further improvement, the induction detector is further provided with a first counting module, and the first counting module is used to count the qualified pull-tie heads monitored.

[0010] As a further improvement, when the positioning pin is inserted into the draw strap head and the sensing area does not sense the airbag draw strap, the buzzer starts to alarm.

[0011] As a further improvement, a second counting module is further provided in the positioning pin. The second counting module is wirelessly connected to the counting display screen. The second counting module is used to monitor the number of airbag drawstrings inserted into the positioning pin.

[0012] The beneficial effects of the utility model are:

[0013] 1. By setting positioning pins on the surface of the inspection fixture and cooperating with an induction detector, the airbag drawstring is fixed and the length of the airbag drawstring is automatically detected, avoiding the situation of missed detection or wrong detection that is easy to occur during manual detection.

[0014] 2. By setting an ink cartridge in the positioning pin, the drawstring head of the airbag drawstring to be tested can be marked, which makes it easier to find the untested airbag drawstring more quickly during subsequent inspections, thereby preventing the airbag drawstring from being missed.

[0015] 3. By setting a second counting module in the positioning pin, the number of airbag drawstrings detected can be counted, and the total number of counts can be displayed on the counting display screen, which is convenient for workers to count and record the number of airbag drawstrings detected.

[0016] 4. By setting a first counting module in the induction detector, the qualified airbag drawstrings can be counted, and the qualified number can be displayed on the counting display screen, which is convenient for workers to count and record the qualified number of airbag drawstrings.

[0017] 5. By setting a buzzer, when the induction detector detects that the length of the airbag drawstring is unqualified, the buzzer can remind the workers to classify the airbag drawstring. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a schematic top view of the overall structure of a checking fixture for checking the length of an airbag drawstring in the utility model;

[0020] Figure 2 It is a schematic diagram of the overall structure of the airbag drawstring in the utility model.

[0021] Reference numerals:

[0022] 1-pull strap head, 2-airbag pull strap, 3-checking fixture, 4-locating pin, 5-ink cartridge, 6-sensing area, 7-control module, 8-counting display, 9-start switch, 10-buzzer. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] In the description of the present invention, the terms "upper", "lower", "above", "both ends", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0025] Reference Figure 1-2 As shown, this embodiment provides a testing tool that can check the length of the airbag drawstring. A positioning pin 4 is provided on the surface of the testing tool 3. A sensing area 6 is also provided on the side of the testing tool 3 away from the positioning pin 4. The positioning pin 4 is adapted to the drawstring head 1 of the airbag drawstring 2. An induction detector is provided in the sensing area 6, and the induction detector is used to sense the position of the airbag drawstring 2.

[0026] By arranging the positioning pins 4 on the surface of the inspection fixture 3 and cooperating with the induction detector, the airbag drawstring 2 is fixed and the length of the airbag drawstring 2 is automatically detected, avoiding the situation of missed detection or wrong detection that is easy to occur during manual detection.

[0027] Furthermore, an ink cartridge 5 is installed at the bottom of the positioning pin 4 , and the ink cartridge 5 is used to mark the drawstring head 1 of the airbag drawstring 2 .

[0028] By arranging the ink cartridge 5 in the positioning pin 4, the drawstring head 1 of the airbag drawstring 2 to be inspected is marked, so that when the airbag drawstring 2 is subsequently inspected, the uninspected airbag drawstring 2 can be found more quickly, thereby preventing the airbag drawstring 2 from being missed in measurement.

[0029] Furthermore, a control module 7 is provided on the side of the inspection fixture 3 close to the sensing area 6. The control module 7 includes a start switch 9, a counting display screen and a buzzer 10. The start switch 9 is electrically connected to the counting display screen and the buzzer 10 respectively, and the counting display screen is also wirelessly connected to the induction detector.

[0030] Furthermore, when the positioning pin 4 is inserted into the drawstring head 1 and the sensing area 6 does not sense the airbag drawstring 2, the buzzer 10 starts to alarm.

[0031] By providing the buzzer 10 , when the induction detector detects that the length of the airbag drawstring 2 is unqualified, the buzzer 10 can be used to remind the worker to classify the airbag drawstring 2 .

[0032] Furthermore, the induction detector is further provided with a first counting module, and the first counting module is used to count the qualified pull-tie heads 1 monitored.

[0033] By setting a first counting module in the induction detector, the qualified airbag drawstrings 2 can be counted, and the qualified number can be displayed on the counting display screen, which is convenient for workers to count and record the qualified number of airbag drawstrings 2.

[0034] Furthermore, a second counting module is provided in the positioning pin 4 . The second counting module is wirelessly connected to the counting display screen. The second counting module is used to monitor the number of airbag straps 2 inserted into the positioning pin 4 .

[0035] By setting a second counting module in the positioning pin 4, the number of detected airbag drawstrings 2 can be counted, and the total number of counts can be displayed on the counting display screen, which is convenient for workers to count and record the number of detected airbag drawstrings 2.

[0036] The working process of this utility model:

[0037] First, turn on the start switch 9, then insert the drawstring head 1 of the airbag drawstring 2 into the positioning pin 4, and the second counting module counts, then stretch the airbag drawstring 2 in the horizontal direction so that the airbag drawstring 2 is flat on the surface of the inspection fixture 3, and finally detect it through the induction detector. If the induction detector detects that the length of the airbag drawstring 2 is not within the acceptable range, the buzzer 10 will sound an alarm, thereby reminding the workers to classify the airbag drawstring 2 to prevent abnormal products from flowing out; if the induction detector detects that the length of the airbag drawstring 2 is within the acceptable range, the first counting module counts, and the buzzer 10 does not sound an alarm, and the first counting module feeds back the recorded data to the counting display screen, so that the workers can count the qualified rate of the airbag drawstring 2. In addition, when there is an error between the total number counted on the counting display screen and the total number of products, it can be checked according to the ink dots on the drawstring head 1 of the airbag drawstring 2, thereby preventing the drawstring from being missed.

[0038] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A test fixture for testing the length of an airbag drawstring, characterized in that: A positioning pin is provided on the surface of the inspection tool, and a sensing area is provided on the side of the inspection tool away from the positioning pin. The positioning pin is adapted to the drawstring head of the airbag drawstring. An induction detector is provided in the sensing area, and the induction detector is used to sense the position of the airbag drawstring.

2. The inspection tool for checking the length of the airbag strap according to claim 1, characterized in that: An ink cartridge is also installed at the bottom of the positioning pin, and the ink cartridge is used to mark the drawstring head of the airbag drawstring.

3. The inspection tool for checking the length of the airbag drawstring according to claim 1, characterized in that: A control module is also provided on the side of the inspection tool close to the sensing area. The control module includes a start switch, a counting display screen and a buzzer. The start switch is electrically connected to the counting display screen and the buzzer respectively. The counting display screen is also wirelessly connected to the induction detector.

4. The inspection tool for checking the length of the airbag drawstring according to claim 3, characterized in that: The induction detector is further provided with a first counting module, and the first counting module is used to count the qualified pull-tie heads monitored.

5. The inspection tool for inspecting the length of the airbag drawstring according to claim 3, characterized in that: When the positioning pin is inserted into the drawstring head and the sensing area does not sense the airbag drawstring, the buzzer starts to alarm.

6. The inspection tool for inspecting the length of the airbag drawstring according to claim 3, characterized in that: A second counting module is further provided in the positioning pin. The second counting module is wirelessly connected to the counting display screen. The second counting module is used to monitor the number of airbag drawstrings inserted into the positioning pin.