Sunshade curtain sag detection device and system

Abstract

A sunshade curtain sag detection device comprises a distance measuring assembly, the distance measuring assembly comprises a first distance measuring instrument, a second distance measuring instrument and a third distance measuring instrument, the first distance measuring instrument is used for detecting the height of the lowest point of a sunshade curtain, and the second distance measuring instrument and the third distance measuring instrument are used for detecting the heights of the two sides of the sunshade curtain respectively. And calculating the sag of the sunshade curtain according to the height of the lowest point of the sunshade curtain and the heights of the two sides of the sunshade curtain. According to the utility model, the distance measuring instruments are arranged on the two sides of the sunshade curtain, so that the sag detection accuracy of the sunshade curtain is improved. The device and the system for detecting the sag of the sunshade curtain are simple in structure, convenient to operate, high in accuracy and high in practical value.

Description

Technical Field

[0001] The utility model belongs to the field of automobiles, and particularly relates to a device and a system for detecting the sag of a sunshade curtain. Background Technique

[0002] An automobile sunroof is an important component for enhancing the comfort of an automobile. The automobile sunroof includes a sunshade curtain, and the sag of the sunshade curtain is an important index for judging the performance of the sunshade curtain. In the research and development of automobile sunroofs, it is necessary to detect the sag of the sunshade curtain to control the sag of the sunshade curtain within a reasonable range, so as to ensure the performance of the sunshade curtain.

[0003] Please refer to Figure 1 , currently, the method for detecting the sag of the sunshade curtain is as follows: install the automobile sunroof on a jig, close the sunshade curtain, and fix an ultrasonic sensor at the lowest point of the sag of the sunshade curtain to detect the sag of the sunshade curtain. Using this detection method, the sunshade curtain is fixed to the jig through the guide rail of the automobile sunroof. If the deviation of the guide rail part causes the automobile sunroof not to be in a horizontal position, it will affect the accuracy of the measurement of the sunshade curtain.

[0004] Therefore, a detection device that can improve the accuracy of the sunshade curtain sag test is needed. Summary of the Invention

[0005] In order to overcome the defects of the prior art, an object of the utility model is to provide a device for detecting the sag of a sunshade curtain, and another object of the utility model is to provide a system for detecting the sag of a sunshade curtain. To achieve the above objects, the technical scheme adopted by the utility model is as follows:

[0006] One aspect of the utility model provides a device for detecting the sag of a sunshade curtain. The device includes a ranging component, and the ranging component includes a first rangefinder, a second rangefinder, and a third rangefinder. The first rangefinder is used to detect the height of the lowest point of the sunshade curtain, and the second rangefinder and the third rangefinder are respectively used to detect the heights of both sides of the sunshade curtain. The sag of the sunshade curtain is calculated according to the height of the lowest point of the sunshade curtain and the heights of both sides of the sunshade curtain.

[0007] Preferably, the height of the lowest point of the sunshade curtain is H1, the heights of both sides of the sunshade curtain are H2 and H3 respectively, and the sag of the sunshade curtain is H1 - (H2 + H3) / 2.

[0008] Preferably, the sunshade curtain is fixed to the jig through a guide rail, and the ranging component is fixed to the jig through a fixing component.

[0009] Preferably, the fixing component includes a fixing piece and a connecting piece. The connecting piece is fixed to the fixing piece, the fixing piece is fixed to the jig, and the ranging component is fixed to the connecting piece.

[0010] Preferably, the first distance measuring instrument, the second distance measuring instrument, and the third distance measuring instrument are all laser detection sensors.

[0011] Another aspect of the present utility model provides a sunshade curtain sag detection system. The detection system includes a checking tool and the sunshade curtain detection device as described above. The sunshade curtain is fixed to the checking tool through a guide rail, and the detection device is fixed to the checking tool.

[0012] Preferably, the detection system further includes a software system connected to the distance measuring component, which is used to record the data of the distance measuring component in real time and calculate the sag of the sunshade curtain.

[0013] The sunshade curtain sag detection device of the present utility model includes a first distance measuring instrument, a second distance measuring instrument, and a third distance measuring instrument. The first distance measuring instrument is used to detect the height of the lowest point of the sunshade curtain, and the second distance measuring instrument and the third distance measuring instrument are respectively used to detect the heights of both sides of the sunshade curtain. The sag of the sunshade curtain is calculated based on the height of the lowest point of the sunshade curtain and the heights of both sides of the sunshade curtain. By arranging distance measuring instruments on both sides of the sunshade curtain, the present utility model improves the accuracy of sunshade curtain sag detection. The sunshade curtain sag detection device and system of the present utility model have a simple structure, convenient operation, high accuracy, and high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] After reading the specific embodiments of the present utility model with reference to the drawings, readers will understand each aspect of the present utility model more clearly. Among them,

[0015] Figure 1 is a structural diagram of the existing detection device;

[0016] Figure 2 is a structural diagram of the sunshade curtain sag detection device of an embodiment of the present utility model;

[0017] Figure 3 is a structural diagram of the fixing component of the sunshade curtain sag detection device of an embodiment of the present utility model;

[0018] DESCRIPTION OF THE REFERENCE NUMERALS:

[0019] 1: Automobile sunroof; 2: Detection device; 3: Checking tool;

[0020] 11: Guide rail;

[0021] 21: Distance measuring component; 22: Fixing firmware;

[0022] 211: First distance measuring instrument; 212: Second distance measuring instrument; 213: Third distance measuring instrument;

[0023] 221: Fixing part; 222: Connecting part. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] To make the technical content disclosed in this application more detailed and complete, reference may be made to the accompanying drawings and the following specific embodiments of the present invention. However, those of ordinary skill in the art should understand that the embodiments provided hereinafter are not used to limit the scope covered by the present invention. In addition, the accompanying drawings are only schematically illustrated and are not drawn according to their original sizes.

[0025] The following will refer to the accompanying drawings to further describe in detail the specific embodiments of various aspects of the present invention.

[0026] Embodiment 1:

[0027] This embodiment provides a sunshade sag detection device 2 for detecting the sag of the sunshade of an automobile sunroof. Please refer to Figure 2 , the detection device 2 includes a ranging component 21, and the ranging component 21 includes a first rangefinder 211, a second rangefinder 212, and a third rangefinder 213. The first rangefinder 211 is used to detect the height H1 of the lowest point of the sunshade, and the second rangefinder 212 and the third rangefinder 213 are respectively used to detect the heights H2 and H3 of both sides of the sunshade.

[0028] In this embodiment, the sunshade is fixed to the inspection tool 3 through the guide rail 11 of the automobile sunroof 1, and the ranging component 21 is fixed to the inspection tool 3 through a fixing component 22. Specifically, the inspection tool 3 includes a detection plane and a support member. The support member is arranged on both sides of the detection plane in the vertical direction. One side of the support member is fixed to the detection plane, and the guide rail 11 is fixed to the other side of the support member. The guide rail 11 is used to fix the sunshade in a horizontal direction parallel to the detection plane. Specifically, the first rangefinder 211, the second rangefinder 212, and the third rangefinder 213 are all fixed to the detection plane.

[0029] In this embodiment, the fixing assembly 22 includes a fixing member 221 and a connecting member 222. The connecting member 222 is fixed to the fixing member 221, the fixing member 221 is fixed to the inspection tool 3, and the distance measuring assembly 21 is fixed to the connecting member 222. Specifically, the detection device 2 includes three groups of the fixing assemblies 22. The first rangefinder 211, the second rangefinder 212, and the third rangefinder 213 are respectively fixed to the detection plane through the fixing assemblies 22. Specifically, the first rangefinder 211, the second rangefinder 212, and the third rangefinder 213 are detachably fixed to the connecting member 222, the connecting member 222 is detachably fixed to the fixing member 221, and the fixing member 221 is detachably fixed to the detection plane. Specifically, the distance measuring component 21 is fixed by the fixing component 22, which facilitates the subsequent adjustment of the position of the distance measuring component 21 and also facilitates the adjustment of the installation angles of the first rangefinder 211, the second rangefinder 212, and the third rangefinder 213.

[0030] In this embodiment, the first rangefinder 211, the second rangefinder 212, and the third rangefinder 213 are all laser detection sensors, which have smaller light spots and higher precision than ultrasonic sensors used in the prior art, thereby improving detection accuracy.

[0031] In this embodiment, according to the height H1 of the lowest point of the sunshade, the height H 2- Specifically, when the sunshade is not installed in a horizontal position due to the component error or installation error of the guide rail 11, the technical solution of a single ultrasonic sensor in the prior art cannot detect the accurate sag. In this embodiment, the height H of both sides of the sunshade is calculated by 2- , H3 are used to correct the height H1 of the lowest point of the sunshade, so that the verticality of the sunshade obtained is more accurate. Specifically, before measuring the distance, the midpoint of the horizontal plane formed by the guide rail 11 is set as the coordinate origin, and the height H1 from the lowest point of the sunshade to the origin is measured by the first rangefinder 211, and the heights H2 and H3 from both sides of the sunshade to the origin are measured by the second rangefinder 212 and the third rangefinder 213. The verticality of the sunshade is H1-(H2+H3) / 2.

[0032] Example 2:

[0033] Another aspect of the present invention provides a sunshade sag detection system, comprising a check fixture 3 and a detection device 2 as described in the first embodiment. The sunshade is fixed to the check fixture 3 via a guide rail 11 of a car sunroof 1 , and the detection device 2 is fixed to the check fixture 3 .

[0034] In this embodiment, the system further includes a software system connected to the ranging component 21, which is used to record the data of the ranging component 21 in real time and calculate the sag of the sunshade curtain.

[0035] Embodiment Three:

[0036] This embodiment details the usage process of the sunshade curtain sag detection system described in Embodiment Two to further illustrate the technical solution of the present invention. The usage steps of the system are as follows:

[0037] (1) Fix the car sunroof 1 on the detection plane of the inspection tool 3 through the guide rail 11 and close the sunshade curtain.

[0038] (2) Visually estimate the lowest point of the sunshade curtain and fix the first rangefinder 211 at the lowest point of the sunshade curtain;

[0039] (3) Fix the second rangefinder 212 and the third rangefinder 213 on both sides of the sunshade curtain;

[0040] (4) Connect the first rangefinder 211, the second rangefinder 212, and the third rangefinder 213 to the software system.

[0041] (5) Turn on the first rangefinder 211, the second rangefinder 212, and the third rangefinder 213, and transmit the measurement data to the software system.

[0042] (6) The software system calculates the sag of the sunshade curtain according to the measurement data of the first rangefinder 211, the second rangefinder 212, and the third rangefinder 213.

[0043] The sunshade curtain sag detection device of the present invention includes a first rangefinder, a second rangefinder, and a third rangefinder. The first rangefinder is used to detect the height of the lowest point of the sunshade curtain, and the second rangefinder and the third rangefinder are respectively used to detect the heights of both sides of the sunshade curtain. The sag of the sunshade curtain is calculated according to the height of the lowest point of the sunshade curtain and the heights of both sides of the sunshade curtain. By setting rangefinders on both sides of the sunshade curtain, the present invention improves the accuracy of sunshade curtain sag detection. The sunshade curtain sag detection device and system of the present invention have a simple structure, convenient operation, high accuracy, and high practical value.

[0044] Obviously, the above embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, based on the above description, other different forms of changes or modifications can be made. The embodiments exemplified by the present utility model cannot exhaust all implementation manners. Any obvious changes or modifications derived from the technical solutions of the present utility model still fall within the protection scope of the present utility model. All documents mentioned in the present utility model are cited in this application as references, just as if a single document is cited as a reference.

Claims

1. A sunshade sag detection device, characterized in that: The device includes a distance measuring component, which includes a first rangefinder, a second rangefinder, and a third rangefinder. The first rangefinder is used to detect the height of the lowest point of the sunshade, and the second rangefinder and the third rangefinder are used to detect the heights on both sides of the sunshade, respectively. The verticality of the sunshade is calculated based on the height of the lowest point of the sunshade and the heights on both sides of the sunshade.

2. The sunshade sag detection device according to claim 1, characterized in that: The height of the lowest point of the sunshade is H1, the heights on both sides of the sunshade are H2 and H3 respectively, and the sag of the sunshade is H1-(H2+H3) / 2.

3. The sunshade sag detection device according to claim 1, characterized in that: The sunshade is fixed to the inspection fixture via a guide rail, and the distance measuring component is fixed to the inspection fixture via a fixing component.

4. The sunshade sag detection device according to claim 3, characterized in that: The fixing assembly includes a fixing part and a connecting part, the connecting part is fixed to the fixing part, the fixing part is fixed to the measuring tool, and the distance measuring assembly is fixed to the connecting part.

5. The sunshade sag detection device according to claim 1, characterized in that: The first rangefinder, the second rangefinder, and the third rangefinder are all laser detection sensors.

6. A sunshade sag detection system, characterized in that: The detection system includes a checking fixture and the sunshade detection device according to any one of claims 1 to 5, the sunshade is fixed to the checking fixture via a guide rail, and the detection device is fixed to the checking fixture.

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