Automobile safety belt performance detection device

Abstract

The utility model discloses an automobile safety belt performance detection device, and relates to the technical field of automobile safety belt tests, the automobile safety belt performance detection device comprises a workbench and a detection assembly, the workbench is provided with a support, the support is provided with a first positioning member, a second positioning member and a third positioning member, and the first positioning member, the second positioning member and the third positioning member form a triangle. An arc plate is arranged on the support in a sliding mode, the arc plate slides in the direction perpendicular to the plane where the triangle is located, the support is further provided with a driving assembly for driving the arc plate to slide, and the three detection assemblies correspond to the first positioning piece, the second positioning piece and the third positioning piece in a one-to-one mode respectively. The three detection assemblies are used for detecting the pulling force borne by the safety belt at the first positioning piece, the second positioning piece and the third positioning piece correspondingly. According to the invention, the safety belt can be tested in a relatively real environment, so that the relatively real data of the performance of the safety belt can be obtained.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of automobile safety belt testing, and in particular to an automobile safety belt performance detection device. BACKGROUND

[0002] Automobile safety belt detection devices are important tools for ensuring the quality and reliability of automobile safety belts. They monitor the state and performance of safety belts through different technologies and methods.

[0003] A patent with the publication number CN221506525U discloses an automobile safety belt limit test device. The device mainly changes the force angle of the safety belt during the tensile test, so as to ensure that the safety belt is tested in a more realistic accident situation in life, so as to obtain a more comprehensive evaluation structure of the safety belt.

[0004] However, in the above-mentioned technology, in actual situations, the automobile safety belt is in a triangular shape covering the surface of the human body, and the safety belt is subjected to the pulling force generated by the automobile and the impact force generated by the human body. Therefore, the above-mentioned test device fails to test the safety belt in a relatively real environment, thereby easily leading to inaccurate experimental data. CONTENT OF THE UTILITY MODEL

[0005] The application aims to provide an automobile safety belt performance detection device, which can test the safety belt in a relatively real environment, so as to obtain relatively most real data of the safety belt performance.

[0006] The automobile safety belt performance detection device provided by the application adopts the following technical scheme:

[0007] A workbench is provided with a support at the upper end, first, second and third positioning members are arranged on the support, the first, second and third positioning members form a triangle, an arc plate is slidably arranged on the support, the arc plate slides along a plane perpendicular to the triangle, and a driving assembly for driving the arc plate to slide is further arranged on the support.

[0008] Three detection assemblies are arranged, one for each of the first, second and third positioning members, and the three detection assemblies are respectively used for detecting the pulling force of the safety belt at the first, second and third positioning members.

[0009] Optionally, the first positioning member comprises a mounting frame, a first clamping jaw and a second clamping jaw, the mounting frame is mounted on the support, the first clamping jaw is fixedly mounted on the mounting frame, the second clamping jaw is slidingly mounted on the mounting frame, and the second clamping jaw moves in the direction of approaching or moving away from the second clamping jaw, the first clamping jaw is provided with a first bolt hole, the second clamping jaw is provided with a second bolt hole, a bolt is arranged in the second bolt hole, and one end of the bolt is inserted into the first bolt hole, and the safety belt is located between the first clamping jaw and the second clamping jaw.

[0010] Optionally, the opposite end faces of the first clamping jaw and the second clamping jaw are provided with anti-skid grooves.

[0011] Optionally, the second positioning member and the third positioning member are the same in structure, the second positioning member comprises a positioning ring, the positioning ring is mounted on the support, one end of the safety belt is fixedly connected to the positioning ring on the second positioning member, and the safety belt passes through the positioning ring on the third positioning member.

[0012] Optionally, the detection assembly comprises a tension sensor, one end of the tension sensor is fixedly connected to the support, and the other end of the tension sensor is fixedly connected to the mounting frame.

[0013] The positions of the tension sensors on the second positioning member and the third positioning member are the same, one end of the tension sensor is fixedly connected to the support, and the other end of the tension sensor is fixedly connected to the positioning ring.

[0014] Optionally, the arc plate comprises an upper arc plate and a lower arc plate, the upper arc plate corresponds to the chest of the human body, and the lower arc plate corresponds to the abdomen of the human body.

[0015] Optionally, the driving assembly comprises a connecting frame, the connecting frame is slidingly mounted on the support, the upper arc plate and the lower arc plate are both mounted on the connecting frame, the support is provided with a hydraulic cylinder, and an output shaft of the hydraulic cylinder is fixedly connected to the connecting frame.

[0016] Optionally, the upper arc plate and the lower arc plate are provided with detachable connecting members between the connecting frame.

[0017] Optionally, the detachable connecting member comprises a threaded column, the threaded column is mounted on the upper arc plate, and the connecting frame is provided with a threaded hole matched with the threaded column.

[0018] In summary, the present application has at least one of the following beneficial technical effects:

[0019] 1. The triangle formed by the first positioning member, the second positioning member and the third positioning member in the application is similar to the shape formed by the three secure fixing places on the automobile seat, and the setting of the arc plate in the application can be regarded as a human body, so when the driving assembly drives the arc plate to move, the arc plate exerts a pushing force on the safety belt, which is similar to the impact force caused by the human body on the safety belt when the automobile suddenly brakes, so that the comprehensive force borne by the safety belt in the application is more consistent with the external force borne by the safety belt on the automobile seat in reality, and therefore more accurate safety belt performance data can be obtained through the device;

[0020] 2. The setting of the first clamping jaw and the second clamping jaw in the first positioning member can adjust the tightness of the safety belt according to the actual situation, so as to better simulate people of different body shapes, and thus a more realistic test environment is achieved to obtain more accurate test data;

[0021] 3. The setting of the upper arc plate and the lower arc plate can more realistically simulate the environment of the chest and abdomen of the human body, so as to further facilitate obtaining more accurate test data;

[0022] 4. Since the shape and size of each human body part are also different, different shapes and sizes of arc plates can be replaced according to the actual situation, so as to further improve the realism of the test environment, and thus the accuracy of the test data is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a schematic view of the overall structure of the embodiment of the application;

[0024] Figure 2 is a schematic view of the structure of the threaded hole in the embodiment of the application;

[0025] Figure 3 is Figure 2 is an enlarged view of position A in

[0026] Figure 4 is a schematic view of the structure of the threaded column in the embodiment of the application;

[0027] Figure 5 is a schematic view of the structure of the first positioning member in the embodiment of the application;

[0028] In the figure, 1, workbench; 11, support; 2, first positioning member; 21, mounting bracket; 22, first clamping jaw; 221, first bolt hole; 23, second clamping jaw; 231, second bolt hole; 24, bolt; 25, anti-skid groove; 3, second positioning member; 4, third positioning member; 5, arc plate; 51, upper arc plate; 52, lower arc plate; 6, driving assembly; 61, connecting bracket; 611, threaded hole; 62, hydraulic cylinder; 7, detection assembly; 8, detachable connecting member; 81, threaded column; 9, safety belt. DETAILED DESCRIPTION

[0029] The application will be further described in detail below with reference to the accompanying drawings. Figures 1-5 The application will be further described in detail below with reference to the accompanying drawings.

[0030] A safety belt performance detection device for a vehicle, which refers to the accompanying drawings Figure 1 and Figure 2 comprises a workbench 1, a support 11 and a detection assembly 7.

[0031] The support 11 in the embodiment is provided in an inverted U shape, and is fixedly installed on the upper end face of the workbench 1. The support 11 is provided with a first positioning member 2, a second positioning member 3 and a third positioning member 4. The first positioning member 2 is located at the upper left of the support 11, the second positioning member 3 is located at the lower left of the support 11, and the third positioning member 4 is located at the lower right of the support 11. The positions of the first positioning member 2, the second positioning member 3 and the third positioning member 4 are connected to form a triangle, and the three fixing points of the safety belt 9 are respectively the first positioning member 2, the second positioning member 3 and the third positioning member 4.

[0032] An arc plate 5 is slidably arranged on the support 11 in a horizontal direction, and the safety belt 9 abuts against the arc surface of the arc plate 5. The arc plate 5 moves along a plane perpendicular to the above-mentioned triangle, and the support 11 is provided with a driving assembly 6 for driving the arc plate 5 to slide.

[0033] The detection assembly 7 in the embodiment is provided with three, and the three detection assemblies 7 correspond to the first positioning member 2, the second positioning member 3 and the third positioning member 4 one by one. The three detection assemblies 7 are respectively used for detecting the tension of the safety belt 9 at the first positioning member 2, the second positioning member 3 and the third positioning member 4.

[0034] When the performance of the safety belt 9 needs to be detected, first, one end of the safety belt 9 is fixed on the first positioning member 2, then a middle part of the safety belt 9 is fixed on the third positioning member 4, and finally the other end of the safety belt 9 is fixed on the second positioning member 3. At the same time, the safety belt 9 between the first positioning member 2 and the third positioning member 4 in the embodiment is arranged in an inclined manner and abuts against the arc surface of the arc plate 5. The safety belt 9 between the second positioning member 3 and the third positioning member 4 is arranged in a horizontal direction and also abuts against the arc surface of the arc plate 5.

[0035] The triangle formed by the first positioning member 2, the second positioning member 3 and the third positioning member 4 in the embodiment conforms to the shape of the fixed safety belt 9 on the automobile seat, and the arc plate 5 in the embodiment can be regarded as a human body. Therefore, when the safety belt 9 needs to be tested, the driving assembly 6 is started to drive the arc plate 5 to move in the direction close to the safety belt 9, so that the safety belt 9 is in a state of being pulled tight, thereby simulating the scenario that when the automobile brakes, the human body continues to move forward due to inertia and exerts a force on the safety belt 9 in the direction away from the seat, so that the force scenario of the safety belt 9 in the actual application can be simulated in a relatively true manner as a whole. Then, the detection assembly 7 detects the tension of the safety belt 9 at the first positioning member 2, the second positioning member 3 and the third positioning member 4. Finally, whether the performance of the safety belt 9 meets the standard is judged based on the obtained data. The comprehensive external force borne by the safety belt 9 in the embodiment is more consistent with the external force borne by the safety belt 9 on the automobile seat in the actual situation than the device in the prior art. Therefore, more accurate performance data of the safety belt 9 can be obtained by using the device.

[0036] In order to make the test environment of the safety belt 9 more realistic, the arc plate 5 in the embodiment includes an upper arc plate 51 and a lower arc plate 52. The upper arc plate 51 and the lower arc plate 52 are fixedly connected. The safety belt 9 between the first positioning member 2 and the third positioning member 4 abuts against the upper arc plate 51. The arc plate 5 between the second positioning member 3 and the third positioning member 4 abuts against the lower arc plate 52. The upper arc plate 51 in the embodiment is used to simulate the chest of a human body. The lower arc plate 52 is used to simulate the abdomen of a human body. In the actual scenario, when the automobile brakes, the main external force on the safety belt 9 is exerted by the chest and the abdomen of the human body. The upper arc plate 51 and the lower arc plate 52 in the embodiment more realistically simulate the actual use scenario of the safety belt 9, so that the data measured by the detection assembly 7 on the safety belt 9 is more accurate.

[0037] Referring to Figure 2 and Figure 3 , the first positioning member 2 in the embodiment includes a mounting frame 21, a first clamping jaw 22 and a second clamping jaw 23. The mounting frame 21 is fixedly installed on the support 11. The first clamping jaw 22 is fixedly installed on the mounting frame 21. The second clamping jaw 23 is slidingly installed on the mounting frame 21 and moves in the direction close to or away from the second clamping jaw 23. Two first bolt holes 221 are formed in the first clamping jaw 22. Two second bolt holes 231 are formed in the second clamping jaw 23. The two first bolt holes 221 and the two second bolt holes 231 correspond to each other. A bolt 24 is inserted into the first bolt hole 221 at one end of the bolt 24. The safety belt 9 is located between the first clamping jaw 22 and the second clamping jaw 23 (in combination with Figure 5 ).

[0038] Referring to Figure 2and Figure 3 The second positioning element 3 and the third positioning element 4 have the same structure. The second positioning element 3 includes a positioning ring, which is fixedly installed on the bracket 11 (in conjunction with...). Figure 5 ).

[0039] Before testing the seat belt 9, first rotate the two bolts 24 in the opposite direction to move the second clamp 23 away from the first clamp 22. Then, fasten one end of the seat belt 9 to the positioning ring on the second positioning member 3. Then, pass the other end of the seat belt 9 through the positioning ring in the third positioning member 4 and through the space between the first clamp 22 and the second clamp 23. Next, continue to pull the seat belt 9 that has passed through the space between the first clamp 22 and the second clamp 23 away from the first positioning member 2 until the seat belt 9 between the first positioning member 2 and the third positioning member 4 abuts against the arc surface of the upper arc plate 51, and the seat belt 9 between the second positioning member 3 and the third positioning member 4 abuts against the arc surface of the lower arc plate 52. Finally, rotate the bolts 24 in the forward direction to move the second clamp 23 towards the first clamp 22 until the second clamp 23 abuts against the seat belt 9 (i.e., the first clamp 22 and the second clamp 23 clamp the seat belt 9), thus realizing the positioning function of the seat belt 9 as a whole.

[0040] Reference Figure 2 and Figure 4 In this embodiment, the drive component 6 includes a connecting frame 61, which is slidably mounted on the bracket 11. The upper arc plate 51 and the lower arc plate 52 are both mounted on the connecting frame 61. A hydraulic cylinder 62 is provided on the bracket 11, and the output shaft of the hydraulic cylinder 62 is fixedly connected to the connecting frame 61.

[0041] After the first positioning component 2, the second positioning component 3, and the third positioning component 4 have all positioned the seat belt 9, the hydraulic cylinder 62 is activated. The output shaft of the hydraulic cylinder 62 extends, driving the connecting frame 61, the upper arc plate 51, and the lower arc plate 52 to move in the direction close to the seat belt 9. Thus, the upper arc plate 51 and the lower arc plate 52 begin to apply a pushing force to the seat belt 9, so that the detection component 7 can begin to test the tension on the seat belt 9.

[0042] Reference Figure 3 and Figure 5 In order to minimize the possibility of relative sliding between the seat belt 9 and the first gripper 22 and the second gripper 23, anti-slip grooves 25 are provided on the opposite end faces of the first gripper 22 and the second gripper 23 in this embodiment to increase the friction between the first gripper 22 and the second gripper 23 and the seat belt 9, thereby improving the positioning capability of the first positioning member 2 for the seat belt 9.

[0043] Since everyone's body shape is different, in this embodiment, the upper arc plate 51 and the lower arc plate 52 are provided with detachable connectors 8 between them and the connecting frame 61. The upper arc plate 51 or the lower arc plate 52 of different sizes and curvatures can be replaced according to the actual situation in order to simulate different human body shapes and thus further improve the accuracy of the data measured by this device.

[0044] Reference Figure 2 and Figure 4 In this embodiment, the detachable connector 8 includes a threaded post 81, which is mounted on the upper arc plate 51. The connecting bracket 61 has a threaded hole 611 that matches the threaded post 81. Similarly, the lower arc plate 52 is provided with a threaded post 81.

[0045] Reference Figure 1 and Figure 2 In this embodiment, the detection component 7 is set as a tension sensor, and the number of tension sensors is set to three. The three tension sensors correspond one-to-one with the first positioning component 2, the second positioning component 3 and the third positioning component 4. One end of the tension sensor in the first positioning component 2 is fixedly installed on the bracket 11 and the other end is fixedly connected to the mounting bracket 21. One end of the tension sensor in the second positioning component 3 is fixedly connected to the bracket 11 and the other end is fixedly connected to the positioning ring. The tension sensor in the third positioning component 4 has the same structure as the tension sensor in the second positioning component 3.

[0046] When the drive assembly 6 drives the arc plate 5 to move in the direction close to the seat belt 9, the seat belt 9 is pushed by the arc plate 5. At the same time, due to the reaction force, the seat belt 9 is also pulled by the first positioning member 2, the second positioning member 3 and the third positioning member 4. Therefore, the tension sensor can measure the corresponding tension value.

[0047] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automobile safety belt performance detection device characterized by comprising: The utility model provides a kind of safety belt tension detection device, including: Workbench (1), upper end is provided with support (11), first positioning member (2), second positioning member (3) and third positioning member (4) are provided on the support (11), the first positioning member (2), second positioning member (3) and third positioning member (4) form triangle, arc plate (5) is slidably provided on the support (11), the arc plate (5) is slid along the plane perpendicular to the triangle is located, the support (11) is further provided with the driving assembly (6) of driving arc plate (5) to slide; Detection assembly (7) is provided with three, respectively with first positioning member (2), second positioning member (3) and third positioning member (4) one to one correspondence, three detection assembly (7) is respectively used to detect the tension of safety belt (9) at first positioning member (2), second positioning member (3) and third positioning member (4).

2. The device for detecting the performance of a safety belt of an automobile according to claim 1, wherein The first positioning member (2) includes mounting frame (21), first jaw (22) and second jaw (23), the mounting frame (21) is installed on the support (11), the first jaw (22) is fixedly installed on the mounting frame (21), the second jaw (23) is slidably installed on the mounting frame (21), and the second jaw (23) moves in the direction close to or away from the second jaw (23), the first jaw (22) is provided with first bolt hole (221), the second jaw (23) is provided with second bolt hole (231), the second bolt hole (231) is provided with bolt (24), and one end of the bolt (24) is inserted into the first bolt hole (221), and safety belt (9) is located between first jaw (22) and second jaw (23).

3. The device for detecting the performance of a safety belt of an automobile according to claim 2, wherein The opposite end surface of the first jaw (22) and the second jaw (23) is provided with an anti-skid groove (25).

4. The device for detecting the performance of a safety belt of an automobile according to claim 1, wherein The second positioning member (3) and the third positioning member (4) are the same structure, the second positioning member (3) includes positioning ring, the positioning ring is installed on the support (11), one end of safety belt (9) is fixedly connected to the positioning ring on the second positioning member (3), and safety belt (9) passes through the positioning ring on the third positioning member (4).

5. The device for detecting the performance of a safety belt of an automobile according to claim 2, wherein The detection assembly (7) includes a tension sensor, one end of the tension sensor is fixedly connected to the support (11), and the other end of the tension sensor is fixedly connected to the mounting frame (21); The position of the tension sensor on the second positioning member (3) and the third positioning member (4) is the same, one end of the tension sensor is fixedly connected to the support (11), and the other end of the tension sensor is fixedly connected to the positioning ring.

6. The device for detecting the performance of a safety belt of an automobile according to claim 1, wherein The arc plate (5) includes upper arc plate (51) and lower arc plate (52), the upper arc plate (51) corresponds to the chest of human body, and the lower arc plate (52) corresponds to the abdomen of human body.

7. The device for detecting the performance of a safety belt of an automobile according to claim 6, wherein The driving assembly (6) comprises a connecting frame (61) which is slidingly installed on the support (11), the upper circular arc plate (51) and the lower circular arc plate (52) are both installed on the connecting frame (61), and a hydraulic cylinder (62) is arranged on the support (11) and fixedly connected with the connecting frame (61).

8. The device for detecting the performance of a safety belt of an automobile according to claim 7, wherein A detachable connecting piece (8) is arranged between the upper circular arc plate (51), the lower circular arc plate (52) and the connecting frame (61).

9. The device for detecting the performance of a safety belt of an automobile according to claim 8, wherein The detachable connecting piece (8) comprises a threaded column (81) which is installed on the upper circular arc plate (51), and a threaded hole (611) which is formed in the connecting frame (61) and matched with the threaded column (81).

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