Travel luggage walking noise detection device and detection method

Abstract

The present invention relates to a travel bag walking noise detection device and detection method, belonging to the technical field of bag detection. The device described in the present invention includes a travel bag, and also includes: a base; a soundproof box body, which is arranged on the base, a side support, which is arranged on the front side of the soundproof box body and fixed on the base; a sound pressure meter, which is arranged on the top of the soundproof box body; a universal wheel rotation system, which is arranged on the base; a hanging fixing device, which is arranged on the side support and extends deep into the front inner side of the soundproof box body; the universal wheel rotation system includes a rotating disc adapted to the universal wheel of the travel bag, and the central bottom of the rotating disc is connected to the driving motor through a transmission system. The device described in the present invention has a simple structure, and can well detect the walking noise of the travel bag, ensuring that the travel bag meets the noise requirements; the present invention also provides a simple and convenient travel bag walking noise detection method.

Description

Technical Field

[0001] The invention relates to a device and method for detecting walking noise of travel luggage, belonging to the technical field of luggage detection. Background Art

[0002] Travel bags are one of the important products in the leather products industry. With the rapid development of the country's economy and the improvement of people's living standards, people's business trips and travel activities have become more frequent, and travel bags have gradually become an indispensable daily necessity in people's lives. On the basis of meeting people's travel needs, travel bags are developing in the direction of fashion, diversification, multi-function, light weight, easy to carry and less noise.

[0003] Luggage inspection, especially the inspection of travel trolley cases, generally requires the inspection of the performance of rollers and handles, mainly to examine the fatigue resistance of the rollers after long-term rolling, as well as the strength and durability of the handles and shoulder straps. The noise when the rollers rotate is rarely tested, but the noise of travel luggage often brings us great trouble in life. The walking noise of travel luggage has always been a prominent but often ignored problem. A large number of travel luggage products do not consider the noise problem when they are designed, and the universal wheels will make a harsh noise when they are used. Therefore, controlling the noise of travel luggage can effectively improve the product experience and is the future development direction of travel luggage. At present, there are also some ultra-quiet high-end travel luggage on the market, which are favored by consumers. However, there are currently few mature travel luggage walking noise test equipment and detection methods, which is not conducive to the further improvement of the quality of my country's travel luggage products. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art and provide a travel bag walking noise detection device, which has a simple structure and can detect the noise of the travel bag universal wheels arranged in a sound insulation box when walking by using a sound pressure meter, so as to well detect the walking noise of the travel bag and ensure that the travel bag meets the noise requirements; the present invention also provides a simple and convenient travel bag walking noise detection method.

[0005] The travel bag walking noise detection device of the present invention comprises a travel bag, and further comprises:

[0006] A base, wherein the bottom of the base is provided with a foot;

[0007] A soundproof box body, arranged on the base, for providing a soundproof environment for the suitcase;

[0008] A side support, arranged at the front side of the sound insulation box and fixed on the base;

[0009] A sound pressure meter, arranged on the top of the soundproof box;

[0010] A universal wheel rotation system, provided on the base, for providing driving force for the universal wheels at the bottom of the suitcase;

[0011] A hanging fixing device, which is arranged on the side support and penetrates into the front inner side of the soundproof box body, and is used to fix the suitcase;

[0012] The universal wheel rotation system includes a rotating disc adapted to the universal wheel of the suitcase, the central bottom of the rotating disc is connected to the driving motor through the transmission system, and the driving motor provides the rotating disc with rotational power through the transmission system. An integrated control panel is provided on one side of the upper part of the side support, and the integrated control panel is electrically or signal-connected with the sound pressure meter, the universal wheel rotation system and the suspension fixture to control and display relevant data, and is a conventional control panel.

[0013] Preferably, the soundproof box is made of a silent material, which can effectively isolate external noise and reduce internal sound reflection. Further preferably, the size of the soundproof box is (120) cm long × (150) cm wide × (170) cm high.

[0014] Preferably, a rear door is provided on the rear side of the soundproof box.

[0015] Preferably, the hanging and fixing device includes a locking block, a movable lock is provided on one side of the locking block corresponding to the suitcase, the movable lock is buckled with the pull rod of the suitcase, a guide block is provided on the other side of the locking block, a guide shaft is provided in the middle of the guide block and is slidably connected to the guide shaft, the guide shaft is fixed on the top of the base and the side support, one side of the locking block is also connected to the output end of the adjusting electric cylinder, and the adjusting electric cylinder is fixed in the middle of the base and the side support.

[0016] Preferably, there are two rotating discs, symmetrically arranged on the base. Further preferably, the diameter of the rotating disc is 450 mm, the allowable tolerance is ±1%, the rotating disc or the disc surface where the rotating disc contacts the gear can be replaced with different materials, and the noise test of travel bags when walking on different road conditions (such as asphalt roads, blind paths, etc.) can be simulated, and the distance between the rotating discs can be adjusted.

[0017] Preferably, the transmission system is a gear transmission, including a driving motor fixed to the bottom of the inner side of the base, the output end of the driving motor is connected to an output shaft through a coupling, the output shaft is provided with two active bevel gears, the active bevel gears are correspondingly provided with passive bevel gears meshing therewith, and the top of the passive bevel gear is fixedly connected to the rotating disc. The gear transmission provides rotational power to the rotating disc, thereby providing rotational power to the universal wheel of the travel bag to be detected, so as to facilitate the detection of noise when the universal wheel moves.

[0018] Preferably, there are four sound pressure meters, which are respectively arranged at the four corners of the top of the soundproof box, so that the noise inside can be detected at more angles.

[0019] The method for detecting the walking noise of a travel bag using the travel bag walking noise detection device comprises the following steps:

[0020] (a) Adjust the indoor temperature and humidity to 20±5℃ and relative humidity <75%;

[0021] (b) Calibrate the sound pressure meter in accordance with the requirements specified in GB / T 15173;

[0022] (c) Before placing the test sample into the soundproof box, measure the equipment noise first. The equipment noise should be ≤40dB(A);

[0023] (d) Load the test sample suitcase with the specified weight and secure it in the soundproof box;

[0024] (e) Turn on the drive motor and allow the rotating disk to rotate for 5-10 minutes;

[0025] (f) Start noise detection, record data every 2 minutes, and record data twice continuously; the average value of the measured values ​​is taken as the final noise detection result; the difference between the results of two consecutive data records should be ≤2dB(A).

[0026] Preferably, the sound pressure meter is a Type I sound pressure meter.

[0027] The measurement equipment noise described in the above step (c) is actually the noise of the components including the soundproof box, the rotating disc, and the suspension fixture measured in a static state before the test sample is placed and the drive motor is started.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] (1) The travel bag walking noise detection device is provided with a soundproof box, and the travel bag walking noise is detected through the inside of the soundproof box. The rotating disk provides walking drive for the universal wheels of the travel bag, and the sound pressure meter detects the noise level, thereby ensuring that the travel bag walking noise does not exceed the standard, and cooperates to manufacture better travel bags, filling the gap in travel bag noise detection;

[0030] (2) The travel bag walking noise detection device is provided with a hanging fixture, and the travel bag can be adjusted to different heights by adjusting the electric cylinder of the hanging fixture, so as to better test the walking noise of the travel bag. The height of the locking block can be controlled by adjusting the electric cylinder, so as to adapt to travel bags of different specifications, so as to perform noise detection;

[0031] (3) The travel bag walking noise detection method is simple and convenient, filling the technical gap in the field of travel bag noise detection. It can not only effectively promote the quality improvement of travel bag products and safeguard the interests of consumers, but also provide a reference basis for the supervision of travel bag product quality and effectively regulate the market. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a front view of the device of the present invention;

[0033] Figure 2 is a top view of the device of the present invention;

[0034] Figure 3 yes Figure 1 AA section view;

[0035] Figure 4 yes Figure 2 BB cross-sectional view;

[0036] Figure 5 is a three-dimensional diagram of the device of the present invention;

[0037] In the figure: 1. Soundproof box; 2. Sound pressure meter; 3. Base; 4. Rotating disc; 5. Suspension fixture; 6. Suitcase; 7. Rear door; 8. Base; 9. Drive motor; 10. Output shaft; 11. Passive bevel gear; 12. Active bevel gear; 13. Adjustment electric cylinder; 14. Guide shaft; 15. Side support. DETAILED DESCRIPTION

[0038] The present invention will be further described below in conjunction with embodiments, but they do not limit the implementation of the present invention.

[0039] Example 1

[0040] like Figure 1-5As shown, the travel bag walking noise detection device includes a suitcase 6, and also includes: a base 3, the bottom of the base 3 is provided with a foot 8; a soundproof box 1, arranged on the base 3, for providing a soundproof environment for the suitcase 6; a side support 15, arranged on the front side of the soundproof box 1 and fixed on the base 3; a sound pressure meter 2, arranged on the top of the soundproof box 1; a universal wheel rotation system, arranged on the base 3, for providing a driving force for the bottom universal wheel of the suitcase 6; a hanging fixing device 5, arranged on the side support 15 and extending into the front inner side of the soundproof box 1, for providing fixation for the suitcase 6; the universal wheel rotation system includes a rotating disc 4 adapted to the universal wheel of the suitcase 6, the central bottom of the rotating disc 4 is connected to the drive motor 9 through a transmission system, and the drive motor 9 provides rotational power for the rotating disc 4 through the transmission system. An integrated control panel is provided on one side of the upper part of the side support 15, which can be connected to a control system to control the speed of the drive motor 9, and can also control the adjustment electric cylinder 13 to adjust the height of the locking block in the suspension fixing device 5 to adapt to the detection of suitcases 6 of different specifications, and can also detect the walking noise of the armrests of a single suitcase 6 at different heights.

[0041] The soundproof box 1 is made of a soundproof material, and a rear door 7 is provided on the rear side of the soundproof box 1 .

[0042] The hanging and fixing device 5 includes a locking block, and a movable lock is provided on one side of the locking block corresponding to the suitcase 6, and the movable lock is buckled with the pull rod of the suitcase. A guide block is provided on the other side of the locking block, and a guide shaft 14 is provided in the middle of the guide block for sliding connection therewith, and the guide shaft 14 is fixed on the top of the base 3 and the side support 15. One side of the locking block is also connected to the output end of the adjusting electric cylinder 13, and the adjusting electric cylinder 13 is fixed in the middle of the base 3 and the side support 15.

[0043] The rotating discs 4 are provided with two and are symmetrically arranged on the base 3. The material of the rotating discs is the same as that of the asphalt road surface.

[0044] The transmission system is a gear transmission, including a driving motor 9 fixed to the inner bottom of the base 3, the output end of the driving motor 9 is connected to an output shaft 10 through a coupling, and two active bevel gears 12 are provided on the output shaft 10, and the active bevel gears 12 are correspondingly provided with passive bevel gears 11 meshing therewith, and the top of the passive bevel gear 11 is fixedly connected to the rotating disc 4.

[0045] There are four sound pressure meters 2, which are respectively arranged at the four corners of the top of the soundproof box 1, so that the noise inside can be detected at more angles.

[0046] The method for detecting the walking noise of a travel bag using the travel bag walking noise detection device comprises the following steps:

[0047] (a) Adjust the indoor temperature and humidity to 20±5℃ and 30% relative humidity;

[0048] (b) Calibrate the Type I sound pressure meter 2 using a sound calibrator that complies with the provisions of GB / T 15173;

[0049] (c) Before loading the test sample into the soundproof box 1, measure the equipment noise first, and the equipment noise is 30dB(A);

[0050] (d) Select a 24-inch suitcase 6 and load it according to the provisions of QB / T 2155-2018, then place the universal wheels of the suitcase 6 on the rotating disc 4, and fix the armrests of the suitcase 6 at a certain height through the locking blocks of the hanging fixture 5, so that the angle between the suitcase and the horizontal plane is 45±2°;

[0051] (e) Turn on the drive motor 9, and the drive motor 9 drives the output shaft 10 to rotate, thereby driving the rotating disc 4 to rotate through gear transmission. After the rotating disc 4 rotates, it can drive the universal wheels of the suitcase 6 to rotate and move, so that the rotating disc 4 rotates for 5 minutes;

[0052] (f) Start noise detection using sound pressure meter 2, record data every 2 minutes, and record data twice in succession; the difference between the results of the two consecutive data records is ≤ 2dB(A); the arithmetic mean of the 8 valid readings of the sound pressure meters at the four corners is taken as the result of this noise test.

[0053] The noise level of the 24-inch travel bag 6 measured in this embodiment is 52dB(A), which meets the requirements of the daytime emission standards for Class 2 functional areas (residential, commercial, and industrial mixed areas) in GB 22337-2008 "Social Living Environment Emission Standards".

[0054] Example 2

[0055] The travel bag walking noise detection device described in Example 1 is used, but the difference is that:

[0056] The material of the rotating disc is the same as that of the blind path.

[0057] The method for detecting the walking noise of a travel bag using the travel bag walking noise detection device comprises the following steps:

[0058] (a) Adjust the indoor temperature and humidity to 20±3℃ and 60% relative humidity;

[0059] (b) Calibrate the Type I sound pressure meter 2 using a sound calibrator that complies with the provisions of GB / T 15173;

[0060] (c) Before loading the test sample into the soundproof box 1, measure the equipment noise first, and the equipment noise is 33dB(A);

[0061] (d) A 32-inch suitcase 6 is selected and loaded with a load according to the provisions of QB / T 2155-2018, and then the universal wheels of the suitcase 6 are placed on the rotating disc 4, and the armrests of the suitcase 6 are fixed at a certain height by the locking blocks of the hanging fixture 5, so that the angle between the suitcase and the horizontal plane is 45±2°;

[0062] (e) Turn on the drive motor 9, and the drive motor 9 drives the output shaft 10 to rotate, thereby driving the rotating disc 4 to rotate through gear transmission. After the rotating disc 4 rotates, it can drive the universal wheels of the suitcase 6 to rotate and move, so that the rotating disc 4 rotates for 8 minutes;

[0063] (f) Start noise detection using sound pressure meter 2, record data every 2 minutes, and record data twice in succession; the difference between the results of the two consecutive data records is ≤1dB(A); the arithmetic mean of the 8 valid readings of the sound pressure meters at the four corners is taken as the result of this noise test.

[0064] The noise level of the 32-inch travel bag 6 measured in this embodiment is 54 dB(A), which meets the requirements of the daytime emission standards for Class 2 functional areas (residential, commercial, and industrial mixed areas) in GB 22337-2008 "Social Living Environment Emission Standards".

[0065] Of course, the above contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of the embodiments of the present invention. The present invention is not limited to the above examples, and equal changes and improvements made by ordinary technicians in the technical field within the essential scope of the present invention should all fall within the scope of the patent coverage of the present invention.

Claims

1. A travel bag walking noise detection device, comprising a travel bag (6), characterized in that: Also includes: A base (3), wherein a foot (8) is provided at the bottom of the base (3); A soundproof box body (1) is arranged on the base (3) and is used to provide a soundproof environment for the suitcase (6); A side support (15) is provided on the front side of the sound insulation box (1) and is fixed on the base (3); A sound pressure meter (2) is arranged on the top of the sound insulation box (1); A universal wheel rotation system, arranged on the base (3) and used to provide driving force for the universal wheels at the bottom of the suitcase (6); A hanging fixing device (5) is arranged on the side support (15) and extends deep into the front inner side of the soundproof box body (1), and is used to fix the travel case (6); The universal wheel rotation system comprises a rotating disc (4) adapted to the universal wheel of the suitcase (6); the central bottom of the rotating disc (4) is connected to a driving motor (9) via a transmission system; the driving motor (9) provides rotating power to the rotating disc (4) via the transmission system; The hanging and fixing device (5) comprises a locking block, wherein a movable locking buckle is provided on one side of the locking block corresponding to the suitcase (6), wherein the movable locking buckle is buckled with the pull rod of the suitcase, and a guide block is provided on the other side of the locking block, wherein a guide shaft (14) slidably connected to the guide block is provided in the middle of the guide block, wherein the guide shaft (14) is fixed to the top of the base (3) and the side support (15), and one side of the locking block is also connected to the output end of the adjusting electric cylinder (13), wherein the adjusting electric cylinder (13) is fixed in the middle of the base (3) and the side support (15); The transmission system is a gear transmission, comprising a driving motor (9) fixed to the inner bottom of the base (3), the output end of the driving motor (9) being connected to an output shaft (10) via a coupling, the output shaft (10) being provided with two active bevel gears (12), the active bevel gears (12) being correspondingly provided with passive bevel gears (11) meshing therewith, and the top of the passive bevel gear (11) being fixedly connected to the rotating disc (4).

2. The travel bag walking noise detection device according to claim 1, characterized in that: The soundproof box (1) is made of a soundproof material, and a rear door (7) is provided on the rear side of the soundproof box (1).

3. The travel bag walking noise detection device according to claim 1, characterized in that: There are two rotating discs (4) which are symmetrically arranged on the base (3).

4. A method for detecting walking noise of travel luggage using the device described in any one of claims 1 to 3, characterized in that: The following steps are involved: (a) Adjust the indoor temperature and humidity; (b) calibrating the sound pressure meter; (c) Measure the equipment noise before loading the test sample into the soundproof box; (d) Load the test sample suitcase with the specified weight and secure it in the soundproof box; (e) Turn on the drive motor to rotate the rotating disk for 5-10 minutes; (f) Start noise detection, record data every 2 minutes, and record data twice continuously; the average value of the measured values ​​is taken as the final noise detection result.

5. The method for detecting walking noise of travel luggage according to claim 4, characterized in that: The indoor ambient temperature is 20±5℃ and the relative humidity is <75%.

6. The method for detecting walking noise of travel luggage according to claim 4, characterized in that: Equipment noise ≤40dB (A).

7. The method for detecting walking noise of travel luggage according to claim 4, characterized in that: The difference between the results of two consecutive data records is ≤2dB(A).

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