CN219798710U

CN219798710U - Safety belt friction tester

Info

Publication number: CN219798710U
Application number: CN202320414257.6U
Authority: CN
Inventors: 胡军; 郭隆欣; 黄超; 吴雅秋; 张茹凤
Original assignee: Fujian Qipai Fashion Technology Co ltd
Current assignee: Fujian Qipai Fashion Technology Co ltd
Priority date: 2023-03-07
Filing date: 2023-03-07
Publication date: 2023-10-03
Anticipated expiration: 2033-03-07

Abstract

The utility model provides a safety belt friction tester which comprises a frame, a seat and a dummy model. The frame comprises a table top board and a safety belt is arranged on the frame. The seat is disposed on the table plate. The clothing to be tested is sleeved on the dummy model. The dummy model is arranged on the seat and is configured to wear the safety belt on the dummy model, and the dummy model can be driven to swing relative to the table panel through the swinging device so as to simulate the friction between the safety belt and clothes to be tested in the driving process. According to the safety belt friction tester provided by the utility model, the friction condition between the real safety belt and clothes under the daily driving condition is simulated, so that the problems that the conventional clothes friction tester cannot fix the safety belt and cannot simulate the friction condition between the safety belt and clothes in the real driving process are solved. In addition, through controlling the swing frequency and the frequency of the swing arm or sleeving different clothes on the dummy model, the pilling change of the safety belt on the clothes under different conditions can be monitored.

Description

Safety belt friction tester

Technical Field

The utility model relates to the technical field of friction testers, in particular to a safety belt friction tester.

Background

With the increasing popularity of automobiles, the time for people to use safety belts is also increasing. The current test on the safety belt is a test for the deformation condition of the safety belt under various emergency conditions, and is mainly used for improving the tensile property of the safety belt. Regarding the test of the friction pilling change between the safety belt and clothes, only a clothes friction tester is adopted to carry out friction test on the components of clothes materials at present, but the traditional clothes friction tester cannot realize the fixation of the safety belt, and meanwhile cannot simulate the friction condition of the safety belt and clothes in the driving process under the real condition (namely, after the qualified product based on the traditional clothes friction tester enters the market, the customer complaint feedback still appears wearing at the position of the safety belt); the existing instrument also does not have a friction tester which is specially used for testing the friction pilling change of the safety belt on clothes, so that the pilling change of the same safety belt on the same clothes fabric under different conditions and the pilling change of the same safety belt on different clothes fabrics under the same experimental conditions can not be monitored;

in summary, the existing friction tester needs to be further improved.

Disclosure of Invention

The utility model provides a safety belt friction tester, and aims to solve the problems that the conventional friction tester cannot test a safety belt and cannot simulate the friction condition of the safety belt on clothes under the real driving condition.

The utility model is realized in the following way:

a seat belt friction tester comprising:

the stand comprises a table panel, and a safety belt is arranged on the stand;

a seat disposed on the deck plate; and

the dummy model is used for sleeving the clothes to be tested on the dummy model, is configured on the seat, is configured to wear the safety belt on the dummy model, and can drive the dummy model to swing relative to the table panel through the swinging device so as to simulate friction between the safety belt and the clothes to be tested in the driving process.

Further, a moving groove is formed in the deck plate and used for driving the swinging device to swing along the length direction of the moving groove, the swinging device comprises two supporting blocks, the two supporting blocks are symmetrically arranged on two sides of the moving groove, a bearing seat is arranged on each supporting block, and one end, close to the supporting block, of the dummy model is connected with the bearing seat through a deep groove ball bearing.

Further, the swinging device comprises a rocker arm, one end of the rocker arm penetrates through the moving groove and is connected with the dummy model through a rocker arm seat, and the rocker arm seat and the supporting block are arranged in a staggered mode.

Further, the swinging device also comprises a power mechanism, the power mechanism comprises a driving wheel, and the rocker arm is far away from one end of the dummy model and is eccentrically arranged on the driving wheel through a screw.

Further, the power mechanism comprises a transmission shaft and an eccentric wheel, wherein one end of the transmission shaft is connected to the transmission wheel and is eccentrically arranged relative to the circle center of the transmission wheel; the other end of the transmission shaft is connected with the eccentric wheel.

Further, the power mechanism further comprises a motor and a speed reducer, the speed reducer is connected with the motor through a coupler, and the output end of the speed reducer is connected with the eccentric wheel.

Further, the frame also comprises a hood and a base, one side of the table panel is connected with the base, one side of the table panel, which is far away from the base, is provided with the hood, and the hood is provided with the safety belt.

Further, a tension adjuster is included for adjusting the force of the seat belt when secured relative to the dummy; the tensioning regulator is arranged on the inner side wall of the hood, can regulate displacement along the height direction of the inner side wall, and is limited by the locking piece after the displacement.

Further, the portable electronic device further comprises a touch screen, wherein the touch screen is arranged on the hood and is electrically connected with the motor.

The beneficial effects of the utility model are as follows:

according to the safety belt friction tester provided by the utility model, the friction condition between the real safety belt and clothes under the daily driving condition is simulated, so that the problems that the conventional clothes friction tester cannot fix the safety belt and cannot simulate the friction condition between the safety belt and clothes in the driving process under the real condition are solved. In addition, the swinging frequency and the swinging times of the swinging arm can be controlled through the touch screen, so that the pilling change of the same safety belt on the same clothes under different conditions can be monitored, and different clothes are sleeved on the dummy model, so that the pilling change of the same safety belt on different clothes under the same experimental conditions can be tested, and the friction condition of the clothes and the safety belt in the real driving process can be simulated.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a seat belt friction tester according to an embodiment of the present utility model in a first view angle;

FIG. 2 is a schematic view of a belt friction tester according to an embodiment of the present utility model in a second view angle;

FIG. 3 is a schematic view of a power mechanism according to an embodiment of the present utility model;

FIG. 4 is a schematic view of the structure of the support block and rocker arm of the present utility model;

fig. 5 is a schematic view showing a structure of a dummy model-attached safety belt according to an embodiment of the present utility model.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

Referring to fig. 1 to 5, the present utility model provides a seat belt friction tester including a frame 1, a seat 2, and a dummy 3.

Referring to fig. 1, in the present embodiment, a rack 1 includes a hood 11, a base 12, and a deck plate 13. The deck plate 13 is connected to the base 12 on one side thereof and provided with a hood 11 on the side thereof remote from the base 12. Preferably, the hood 11 is welded to the deck 13. A power socket 121 is provided on the base 12 for connection to a power source for providing power to the seat belt friction tester. A power switch 4 is provided on the deck plate 13 for turning on or off the seat belt friction tester. The cover 11 is provided with a seat belt 5 and a seat belt buckle 6 detachably connected with the seat belt 5, and is used for wearing the seat belt 5 on the dummy model 3 and fixing the seat belt 5 through the seat belt buckle 6 so as to test the friction condition of the seat belt 5 and clothes. Wherein one end of the safety belt 5 is provided with a tensioning regulator 51 for regulating the force of the safety belt 5 against the dummy 3 when it is fastened. The tension adjuster 51 is provided on the inner side wall of the hood 11, and is capable of adjusting displacement in the height direction of the inner side wall and is restrained by a locking member after the displacement. The seat belt 5 and the dummy 3 can be tightened when the tension adjuster 51 is adjusted upward, and the seat belt 5 and the dummy 3 can be loosened when moved downward. The other end of the safety belt 5 can be connected to the safety belt buckle 6 through the telescopic connection of the safety belt.

In a preferred embodiment, the side of the base 12 remote from the deck 13 is provided with feet 14 for securing the seat belt friction tester.

Referring to fig. 1 to 5, in the present embodiment, the hood 11 is further formed with a receiving chamber for receiving the seat 2. The seat 2 is arranged in the accommodation chamber and is fixed on the table top 13 by screws. The dummy 3 is disposed on the seat 2 for simulating the state of the human body and the seat 2 in real situations, and the dummy 3 is sleeved with clothes to be tested. The dummy 3 is configured to wear the safety belt 5 on the dummy 3, and the dummy 3 is driven to swing relative to the table 13 by a swinging device 7 to simulate the friction between the safety belt 5 and the clothing to be tested during driving.

Specifically, a moving slot 131 is formed on the deck plate 13, for driving the swinging device 7 to swing along the length direction of the moving slot 131. The swinging device 7 comprises two supporting blocks 71, a rocker arm 72 and a power mechanism 73. The two support blocks 71 are symmetrically disposed at both sides of the moving groove 131, and bearing seats 74 are provided on the support blocks 71. Preferably, the support blocks 71 are welded to the deck plate 13. The end of the dummy 3 near the support block 71 is connected to the bearing housing 74 via a deep groove ball bearing 75. One end of the rocker arm 72 penetrates through the moving groove 131 and is connected with the dummy model 3 through a rocker arm seat 76, and the rocker arm seat 76 and the supporting block 71 are arranged in a staggered mode. The dummy 3 can be fixed and the stability thereof can be ensured by providing the rocker arm seat 76. The power mechanism 73 includes a transmission wheel 731, a transmission shaft 732, an eccentric 733, a motor 734, and a speed reducer 735. The end of the rocker arm 72 remote from the dummy 3 is mounted eccentrically on the drive wheel 731 by means of screws. One end of the transmission shaft 732 is connected to the transmission wheel 731, and is eccentrically arranged with the center of the transmission wheel 731, and the other end is connected to the eccentric wheel 733. The speed reducer 735 is connected to the motor 734 via a coupling, and an output end of the speed reducer 735 is connected to the eccentric 733. The motor 734 and the speed reducer 735 are also mounted on the side of the deck plate 13 away from the dummy model 3 through a motor mount 736, and the motor 734 and the speed reducer 735 are respectively connected to a power source.

The motor 734 drives the eccentric 733 and the transmission shaft 732 to move, so as to drive the transmission wheel 731 to rotate. Since the rocker arm 72 is respectively connected with the driving wheel 731 and the dummy model 3, it can swing under the driving of the driving wheel 731, and further, the dummy model 3 is driven to swing back and forth along the moving groove 131.

Referring to fig. 3, in this embodiment, the seat belt friction tester further includes a motor driver 8. The motor driver 8 is electrically connected to the motor 734 via a motor power line and an encoder for controlling the movement of the motor 734. The motor driver 8 is also used for connecting to a power supply. The motor driver 8 is arranged to control the rotation and the rotation speed of the motor 734 so as to drive the swing arm 72 to swing and further control the dummy model 3 to swing back and forth to simulate the motion condition of a human body during driving. In the swinging process, the lower end of the dummy model 3 is fixed to swing in a small amplitude, and the swinging amplitude of the upper half part is larger, so that the real driving condition can be better simulated.

In a preferred embodiment, the seat belt friction tester further comprises a touch screen 9 for operation and display of the seat belt friction tester. Preferably, the touch screen 9 is a color touch screen. The touch screen 9 is disposed on the hood 11 and electrically connected to the motor driver 8, for driving the motor 734 to move when the motor driver 8 receives the pulse signal sent from the touch screen 9. A working key for controlling the rotation speed and the number of tests of the motor 734 and a starting key for controlling the rotation of the motor 734 are provided on the touch screen 9. The touch screen 9 is arranged, so that an operator can conveniently input the rotating speed of the motor and the test times according to the test requirement, and the pilling change of the safety belt on the clothes to be tested under different conditions is monitored.

It should be noted that, the connection and control method of the motor driver 8 and the motor 734 and the control method of the touch screen 9 and the motor driver 8 according to the present utility model are all conventional techniques. The motor driver 8 is fixed below the deck plate 13, connected to the encoder through a control port, and drives the motor 734 by receiving a pulse signal from the encoder. When a predetermined rotational speed and number of tests are input through the touch screen 9 after the power switch 4 is turned on, the touch screen 9 sends a signal to the motor driver 8 to drive the motor 734 to start moving. At this time, the rotation speed of the motor 734 is reduced by the speed reducer 735 and is transmitted to the eccentric wheel 733, and the eccentric wheel 733 drives the transmission shaft 732 and the transmission wheel 731 to move, so as to drive the rocker arm 72 to finally drive the dummy model 3 to swing back and forth, so as to simulate the real driving situation.

To facilitate an understanding of the present utility model, the workflow of the present utility model is detailed below.

S1, selecting clothes to be tested, sleeving the clothes on the dummy model 3, and then wearing the safety belt 5 on the dummy model 3 and connecting the safety belt to the safety belt buckle 6.

S2, checking whether the dummy model 3 is installed stably or not and whether something withstands.

S3, connecting the power socket 121 to the alternating current 220v, ensuring that the grounding resistance is less than 5Ω, and then opening the power switch 4.

S4, opening the touch screen 9, clicking a working key on the touch screen 9 to set the speed and the test times, and clicking the lower start.

And S5, after the specified operation times are reached, the safety belt 5 and the clothes are taken down, the pilling condition of the surface of the clothes is observed, and the pilling change of the clothes caused by the safety belt 5 under the experimental conditions can be monitored.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A seat belt friction tester, comprising:

the stand comprises a table panel, and a safety belt is arranged on the stand;

a seat disposed on the deck plate; and

2. The safety belt friction tester according to claim 1, wherein a moving groove is formed in the deck plate and used for driving the swinging device to swing along the length direction of the moving groove, the swinging device comprises two supporting blocks, the two supporting blocks are symmetrically arranged on two sides of the moving groove, bearing seats are arranged on the supporting blocks, and one end, close to the supporting blocks, of the dummy model is connected with the bearing seats through deep groove ball bearings.

3. The seat belt friction tester according to claim 2, wherein the swinging device comprises a rocker arm, one end of the rocker arm penetrates through the moving groove and is connected with the dummy model through a rocker arm seat, and the rocker arm seat and the supporting block are arranged in a staggered manner.

4. A seat belt friction tester according to claim 3 wherein the swinging means further comprises a power mechanism including a drive wheel on which the rocker arm is eccentrically mounted by screws at an end remote from the dummy.

5. The safety belt friction tester according to claim 4, wherein the power mechanism comprises a transmission shaft and an eccentric wheel, one end of the transmission shaft is connected to the transmission wheel and is eccentrically arranged relative to the center of the transmission wheel; the other end of the transmission shaft is connected with the eccentric wheel.

6. The seat belt friction tester according to claim 5, wherein the power mechanism further comprises a motor and a speed reducer, the speed reducer is connected with the motor through a coupling, and an output end of the speed reducer is connected with the eccentric wheel.

7. The seat belt friction tester according to claim 1, wherein the frame further comprises a hood and a base, one side of the deck plate is connected to the base, the hood is provided on a side thereof away from the base, and the seat belt is provided on the hood.

8. The seat belt friction tester according to claim 7, further comprising a tension adjuster for adjusting the force of the seat belt when fixed with respect to the dummy model; the tensioning regulator is arranged on the inner side wall of the hood, can regulate displacement along the height direction of the inner side wall, and is limited by the locking piece after the displacement.

9. The seat belt friction tester according to claim 7, further comprising a touch screen disposed on the hood and electrically connected to the motor.