Automobile safety belt testing device

Abstract

The utility model relates to the technical field of automobile safety belt testing, and discloses an automobile safety belt testing device, which comprises a testing frame, positioning blocks are welded on two sides of the upper end of the testing frame, a through groove is formed in the middle of each positioning block, an extrusion block movably penetrates through one side of an inner cavity of each through groove, and a first sawtooth block is fixedly mounted on the other side of each extrusion block. According to the technical scheme, the lead screw can be matched with the lead screw sleeve to drive the extrusion plate to move downwards, the extrusion plate compresses and limits the tail end of the automobile safety belt, the stability of the automobile safety belt is improved by being matched with the edge rubber strip of the positioning block, the tightened automobile safety belt can extrude the arc-shaped block, and the safety of the automobile safety belt is improved. And a first sawtooth block on the extrusion block is matched with a second sawtooth block to extrude and limit the automobile safety belt in the passing groove again, so that the slipping phenomenon in the tightening test process is avoided, and the test efficiency of the automobile safety belt is further ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile safety belt testing, in particular to an automobile safety belt testing device. Background Art

[0002] Cars are one of the main means of transportation for people's daily travel today. With the continuous increase in the number of cars, the frequency of car traffic accidents is also getting higher and higher. In order to protect the occupants in the car when a safety accident occurs, protective devices such as airbags and seat belts are installed in the car. Seat belts can reduce the impact and inertia of the impact and injury to the passengers.

[0003] After searching, the publication number is (CN220188021U), which discloses a car seat belt testing device, which includes: a test bench, a display is fixedly provided at the bottom of one side of the test bench, a vertical plate is welded to the middle of the bottom end of the test bench, a screw is rotatably connected inside one side of the vertical plate, a cross bar is fixed inside the other side of the vertical plate, a sliding sleeve is threadedly sleeved on the outer side of the screw, the other end of the sliding sleeve is slidably sleeved on the outer side of the cross bar, an electric telescopic rod is fixed to the middle of the sliding sleeve, a mounting block is fixed to the top of the electric telescopic rod, and a pressure sensor is fixed to the upper end of the mounting block.

[0004] When implementing this technical solution, at least the following defects still exist: although the utility model can clamp and fix the two ends of the seat belt, the fixing effect is not ideal, and it is very easy to slip during the tightening test, which urgently needs to be improved. Therefore, we propose a car seat belt test device. Utility Model Content

[0005] The utility model aims to provide a vehicle safety belt testing device, which solves the problems raised in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vehicle safety belt testing device, comprising a test frame, positioning blocks are welded on both sides of the upper end of the test frame, a through slot is provided in the middle of the positioning block, an extrusion block is movably penetrated through one side of the inner cavity of the through slot, a first sawtooth block is fixedly installed on the other side of the extrusion block, a second sawtooth block is fixedly installed on the other side of the inner cavity of the through slot, and slide slots are provided on both sides of the extrusion block;

[0007] Slide blocks are fixedly installed on both sides of the extrusion block, a spring is fixedly installed in the inner cavity of the slide groove, a support plate is integrally formed on the upper end of the positioning block, an extrusion plate is slidably installed on the outer side of the support plate, hydraulic cylinders are detachably installed on both sides of the lower end of the test frame, and a lifting plate is installed on the output end of the hydraulic cylinder.

[0008] By adopting the above technical scheme, the extrusion plate can compress and limit the end of the car safety belt, and cooperate with the edge rubber strip of the positioning block to improve the stability of the car safety belt. At the same time, when the lifting plate performs a tension test on the middle section of the safety belt, the first serrated block on the extrusion block cooperates with the second serrated block to squeeze and limit the car safety belt passing through the groove again, so that the limitation of the car safety belt can be completed quickly, and the slipping phenomenon during the tension test can be avoided, further ensuring the test efficiency of the car safety belt.

[0009] Optionally, an arc block is fixedly mounted on one side of the extrusion block, and the size of the arc block is larger than that of the extrusion block.

[0010] By adopting the above technical solution, it is easy to ensure the pushing effect of the arc block on the extrusion block, and further ensure the tightening effect on the car safety belt.

[0011] Optionally, the first sawtooth block and the second sawtooth block are symmetrically arranged, and the second sawtooth block is meshed with the first sawtooth block.

[0012] By adopting the above technical solution, the first sawtooth block and the second sawtooth block can be matched to facilitate secondary limitation of the vehicle safety belt.

[0013] Optionally, the size of the slider matches the size of the slide groove, and the slider is slidably connected to the slide groove.

[0014] By adopting the above technical solution, it is convenient to cooperate with the slide block and the slide groove, so as to ensure the stability of the extrusion block.

[0015] Optionally, one end of the spring is fixedly connected to the inner cavity of the slide groove, and the other end of the spring is fixedly connected to the slider.

[0016] By adopting the above technical solution, the extrusion block can be driven to reset by the cooperation of the spring, so as to facilitate the restriction of the automobile safety belt next time.

[0017] Optionally, a screw sleeve is fixedly installed in the middle of the extrusion plate, and a screw is rotatably installed on the upper end of the positioning block through a bearing, and the screw is threadedly connected to the screw sleeve.

[0018] By adopting the above technical solution, the screw rod and the screw rod sleeve can be matched to drive the extrusion plate to move, thereby limiting the car safety belt.

[0019] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0020] The technical solution of the present application, through the provision of a test frame, a passing groove, an extrusion block, a first serrated block, a second serrated block, a slider, a screw sleeve, a hydraulic cylinder and a lifting plate, can enable the screw to cooperate with the screw sleeve to drive the extrusion plate to move downward, so that the extrusion plate can compress and limit the end of the vehicle seat belt, and cooperate with the edge rubber strip of the positioning block to improve the stability of the vehicle seat belt, and can also enable the tightened vehicle seat belt to squeeze the arc block, and the arc block drives the extrusion block to move, so that the first serrated block on the extrusion block cooperates with the second serrated block to extrude and limit the vehicle seat belt in the passing groove again, thereby quickly completing the limitation of the vehicle seat belt and avoiding slipping during the tightening test, further ensuring the testing efficiency of the vehicle seat belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of a vehicle safety belt testing device of the utility model;

[0023] Figure 2 This is a partial enlarged structural diagram of position A of a vehicle safety belt testing device of the utility model;

[0024] Figure 3 The utility model is a partial enlarged structural schematic diagram of the B part of a vehicle safety belt testing device.

[0025] In the figure: 1. test frame; 2. positioning block; 21. through slot; 22. extrusion block; 23. arc block; 24. first serrated block; 25. second serrated block; 26. slide groove; 27. spring; 28. slider; 3. support plate; 31. extrusion plate; 32. screw sleeve; 33. screw; 4. hydraulic cylinder; 5. lifting plate. DETAILED DESCRIPTION

[0026] See also Figure 1-3 The utility model provides a technical solution: a vehicle safety belt test device, comprising a test frame 1, positioning blocks 2 are welded on both sides of the upper end of the test frame 1, a through slot 21 is provided in the middle of the positioning block 2, which is convenient for the vehicle safety belt to pass through and limit the two ends of the vehicle safety belt, an extrusion block 22 is movably penetrated through one side of the inner cavity of the slot 21, which is convenient for driving a first sawtooth block 24 to move, a first sawtooth block 24 is fixedly installed on the other side of the extrusion block 22, a second sawtooth block 25 is fixedly installed on the other side of the inner cavity of the slot 21, and slide slots 26 are provided on both sides of the extrusion block 22;

[0027] Slide blocks 28 are fixedly installed on both sides of the extrusion block 22, and a spring 27 is fixedly installed in the inner cavity of the slide groove 26. The upper end of the positioning block 2 is integrally formed with a support plate 3, and an extrusion plate 31 is slidably installed on the outer side of the support plate 3. Hydraulic cylinders 4 are detachably installed on both sides of the lower end of the test frame 1, and a lifting plate 5 is installed on the output end of the hydraulic cylinder 4. One end of the spring 27 is fixedly connected to the inner cavity of the slide groove 26, and the other end of the spring 27 is fixedly connected to the slide block 28, so that the extrusion block 22 can be driven to reset through the cooperation of the spring 27, thereby facilitating the lower The car seat belt is limited for the second time. The size of the slider 28 is matched with the size of the slide groove 26, and the slider 28 is slidably connected to the slide groove 26, which is convenient for the slider 28 to cooperate with the slide groove 26, so as to ensure the stability of the extrusion block 22. A screw sleeve 32 is fixedly installed in the middle of the extrusion plate 31, and a screw rod 33 is rotatably installed on the upper end of the positioning block 2 through a bearing. The screw rod 33 is threadedly connected with the screw sleeve 32, which is convenient for the screw rod 33 to cooperate with the screw sleeve 32, so as to drive the extrusion plate 31 to move, thereby limiting the car seat belt.

[0028] An arc block 23 is fixedly mounted on one side of the extrusion block 22, and the size of the arc block 23 is larger than that of the extrusion block 22, so as to ensure the pushing effect of the arc block 23 on the extrusion block 22 and further ensure the tightening effect on the vehicle seat belt.

[0029] The first sawtooth block 24 and the second sawtooth block 25 are symmetrically arranged, and the second sawtooth block 25 is meshed with the first sawtooth block 24 , so that the first sawtooth block 24 and the second sawtooth block 25 cooperate to perform secondary limitation on the vehicle safety belt.

[0030] During the test, the car safety belt to be tested is first passed through the through slot 21, and then pulled to the bottom of the extrusion plate 31, and then the screw rod 33 is rotated, and the screw rod 33 cooperates with the screw rod sleeve 32 to drive the extrusion plate 31 to move downward, so that the extrusion plate 31 presses and limits the end of the car safety belt, and cooperates with the edge rubber strip of the positioning block 2 to improve the stability of the car safety belt. At the same time, when the lifting plate 5 performs a tension test on the middle section of the safety belt, the tightened car safety belt will squeeze the arc block 23, and the arc block 23 drives the extrusion block 22 to move, so that the first sawtooth block 24 on the extrusion block 22 cooperates with the second sawtooth block 25 to squeeze and limit the car safety belt in the through slot 21 again, so that the limitation of the car safety belt can be completed quickly, and the slipping phenomenon during the tension test is avoided, further ensuring the test efficiency of the car safety belt.

Claims

1. A vehicle safety belt testing device, comprising a test stand (1), characterized in that: Positioning blocks (2) are welded on both sides of the upper end of the test frame (1); a through slot (21) is provided in the middle of the positioning block (2); an extrusion block (22) movably penetrates one side of the inner cavity of the through slot (21); a first sawtooth block (24) is fixedly installed on the other side of the extrusion block (22); a second sawtooth block (25) is fixedly installed on the other side of the inner cavity of the through slot (21); and sliding grooves (26) are provided on both sides of the extrusion block (22); Slide blocks (28) are fixedly mounted on both sides of the extrusion block (22), a spring (27) is fixedly mounted in the inner cavity of the slide groove (26), a support plate (3) is integrally formed at the upper end of the positioning block (2), an extrusion plate (31) is slidably mounted on the outer side of the support plate (3), hydraulic cylinders (4) are detachably mounted on both sides of the lower end of the test frame (1), and a lifting plate (5) is mounted on the output end of the hydraulic cylinder (4).

2. A vehicle safety belt testing device according to claim 1, characterized in that: An arc block (23) is fixedly mounted on one side of the extrusion block (22), and the size of the arc block (23) is larger than the size of the extrusion block (22).

3. The vehicle safety belt testing device according to claim 1, characterized in that: The first sawtooth block (24) and the second sawtooth block (25) are symmetrically arranged, and the second sawtooth block (25) is meshed with the first sawtooth block (24).

4. The vehicle safety belt testing device according to claim 1, characterized in that: The size of the slider (28) matches the size of the slide groove (26), and the slider (28) is slidably connected to the slide groove (26).

5. The vehicle safety belt testing device according to claim 1, characterized in that: One end of the spring (27) is fixedly connected to the inner cavity of the slide groove (26), and the other end of the spring (27) is fixedly connected to the slider (28).

6. The vehicle safety belt testing device according to claim 1, characterized in that: A screw sleeve (32) is fixedly mounted in the middle of the extrusion plate (31), a screw rod (33) is rotatably mounted on the upper end of the positioning block (2) via a bearing, and the screw rod (33) is threadedly connected to the screw sleeve (32).

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