Skiing veneer fixer collision test device

Abstract

The utility model discloses a skiing veneer fixer collision test device, which comprises a driving vehicle for dynamically simulating a fixer sample and a stopping mechanism arranged at a test end point and used for colliding with the driving vehicle, the driving vehicle comprises a vehicle frame with a top plate, walking wheels assembled on the vehicle frame and located below the top plate, and a driving mechanism fixedly arranged below the top plate of the vehicle frame; the driving mechanism is in transmission connection with the walking wheels; and a chassis for mounting a fixer sample is fixedly arranged on a top plate of the frame. According to the utility model, the collision test of the skiing veneer fixer can be realized according to standard requirements, the safety of the test process is good, the accuracy of the test result is high, and technical support and equipment guarantee are provided for the collision test items during the performance test of the skiing veneer fixer in China.

Description

Technical Field

[0001] The utility model relates to a performance test of a ski single board fixing device, in particular to a collision test device of a ski single board fixing device. Background Art

[0002] The ski binding is the connecting part between the ski boots and the ski board, and it plays an important protective role in the personal safety of the skier.

[0003] In order to encourage ski equipment manufacturers to improve product quality and ensure the sports safety of ski enthusiasts and professional athletes, six national standards on ski bindings are currently being implemented in China, namely GB / T 40923.1-2021, GB / T 40923.2-2021, GB / T40925-2021, GB / T40928-2021, GB / T 40932-2021 and GB / T 40940-2021.

[0004] Among them, GB / T 40932-2021 "Requirements and Test Methods for Step-in Bindings for Snowboards" stipulates that the bindings for snowboards should keep the ski boots and snowboards connected when actually used under full load on snow in winter, and proposes a corresponding test method, namely 6.7.3 Collision test: the sample is pretreated at -20℃ for at least 1.5h; the collision is carried out at a minimum speed of 4m / s and a minimum potential energy of 82N·m; the test should be completed within 5min. After the test, the connected ski boots should not slip off the sample.

[0005] However, there is currently a lack of equipment for implementing the above collision test in China, resulting in the general choice of not conducting collision tests when testing the performance of snowboard bindings. In a few cases, collision tests are conducted through actual use by skiers, but this method carries a greater risk. Utility Model Content

[0006] In order to solve the above deficiencies in the prior art, the utility model aims to provide a ski binding collision test device, so as to achieve the collision test of the ski binding according to the standard requirements.

[0007] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a ski and snowboard binding collision test device, comprising a driving vehicle for dynamically simulating a binding specimen and a stopping mechanism provided at the test end point for colliding with the driving vehicle;

[0008] The driving vehicle comprises a frame with a top plate, a running wheel mounted on the frame and located below the top plate, and a driving mechanism fixed below the top plate of the frame; the driving mechanism is in transmission connection with the running wheel;

[0009] A chassis for mounting a fixture sample is fixedly arranged on the top plate of the frame.

[0010] As a limitation of the present utility model, the stop mechanism is a stop plate provided at the end point of the test;

[0011] The front end of the frame top plate is a collision end ahead of the running wheel, and the collision end faces the stop plate.

[0012] As a further limitation of the present invention, the travel wheels include two active travel wheels mounted on the rear end of the frame and two driven travel wheels mounted on the front end of the frame;

[0013] The collision end of the frame top plate is ahead of the two driven running wheels.

[0014] As a further limitation of the present invention, the driving mechanism includes a motor fixedly mounted below the top plate of the frame, a reducer mounted on the power output end of the motor, and a transmission shaft mounted below the top plate of the frame;

[0015] The reducer is in driving connection with the transmission shaft; the transmission shaft is in driving connection with two active walking wheels.

[0016] As a further limitation of the present invention, the reducer and the transmission shaft, as well as the transmission shaft and the two active running wheels are connected via synchronous belt transmission.

[0017] As a further limitation of the present invention, a plurality of weight-reducing holes are provided on the top plate of the frame.

[0018] As another limitation of the present invention, it further includes a guide rail disposed between a test start point and a test end point for causing the driving vehicle to move linearly;

[0019] A guide wheel assembly for cooperating with the guide rail is provided below the frame top plate of the driving vehicle.

[0020] As a further limitation of the present invention, the guide rail is an I-beam;

[0021] The guide wheel assembly comprises two guide wheels which are relatively fixed below the top plate of the frame, and the rolling surfaces of the two guide wheels contact the two side surfaces of the I-beam respectively.

[0022] Due to the adoption of the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0023] (1) The utility model can realize the collision test of the ski binding in accordance with the standard requirements, and provides technical support and equipment guarantee for the collision test project of the domestic ski binding performance test. Specifically, the utility model uses a driving vehicle to dynamically simulate the binding sample, and sets a stop mechanism to accelerate the driving vehicle to 4m / s before collision. Compared with the collision test during the actual use of the skier, the test process of the utility model is safer and the test results are more accurate.

[0024] (2) The utility model provides a chassis for mounting the binding specimen on the roof panel of the driving vehicle, and uses the chassis instead of the snowboard to simulate the connection between the binding specimen and the snowboard, thereby avoiding the use of the snowboard and further avoiding damage to the snowboard during the collision test.

[0025] (3) The utility model also provides a guide rail and a guide wheel assembly to limit the motion trajectory of the driving vehicle to always be a straight line, which can ensure that the driving vehicle accurately hits the cut-off mechanism. At the same time, it also eliminates the possibility of colliding with on-site test personnel due to deviation of the driving vehicle trajectory, thereby further improving the safety of the test process.

[0026] (4) In the drive vehicle of the utility model, the collision end arranged at the front end of the frame top plate and ahead of the running wheel can prevent the running wheel from contacting with the stop mechanism (i.e., the stop plate) and causing damage to the running wheel when a collision occurs.

[0027] (5) The weight-reducing holes provided on the top plate of the driving vehicle of the utility model are used to reduce the overall weight of the driving vehicle so as to shorten the acceleration time and acceleration distance by reducing the weight when the motor power is constant (the standard requires that the collision test be completed within 5 minutes and the speed should be 4m / s). The shortening of the acceleration distance can reduce the required site area, so that the collision test can be completed in a limited site and at a shorter distance. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention is described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0030] Figure 2 This is a schematic diagram of the structure of an embodiment of the utility model from another angle (the guide rail is not shown);

[0031] In the figure: 1. top plate; 2. active walking wheel; 3. driven walking wheel; 4. collision end; 5. weight reduction hole; 6. motor; 7. reducer; 8. transmission shaft; 9. guide rail; 10. guide wheel; 11. vertical plate. DETAILED DESCRIPTION

[0032] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and understand the present invention, and are not used to limit the present invention.

[0033] This embodiment discloses a ski binding collision test device, which includes a driving vehicle, a guide rail 9 and a stopping mechanism.

[0034] Specifically, the driving vehicle is used to install the fixture sample to perform dynamic simulation on the fixture sample. Figure 1 and Figure 2 As shown, the driving vehicle includes a frame with a top plate 1, running wheels mounted on the frame and located below the top plate 1, and a driving mechanism fixed below the top plate 1 of the frame. In order to reduce weight while ensuring structural strength, in this embodiment, the top plate 1 of the frame is designed as a whole aluminum plate and a plurality of weight-reducing holes 5 are provided. In this embodiment, a chassis is also fixed to the upper surface of the top plate 1 by bolts, and the chassis is used to install a binding sample to simulate the connection between the binding and the snowboard. (The chassis is not shown in the figure.) Figure 1 and Figure 2 .

[0035] The running wheels include two active running wheels 2 mounted at the rear end of the frame and two driven running wheels 3 mounted at the front end of the frame. Figure 2 It should be noted that the “front” and “rear” in this embodiment are defined with reference to the traveling direction of the driving vehicle.

[0036] The driving mechanism includes a motor 6 fixedly mounted below the frame top plate 1, a reducer 7 mounted on the power output end of the motor 6, and a transmission shaft 8 mounted below the frame top plate 1. Figure 2 The reducer 7 is connected to the transmission shaft 8 through a synchronous belt; the transmission shaft 8 is arranged above the two active running wheels 2 and is connected to the two active running wheels 2 through a synchronous belt. In this embodiment, the power line and control line of the motor 6 are spiral cables so that the connection with the power supply and control system is not affected when the driving vehicle moves.

[0037] Furthermore, the stopping mechanism is a stopping plate standing at the end point of the test, which is used to collide with the driving vehicle accelerated to the target speed. In this embodiment, the stopping plate is a steel plate. Figure 1 and Figure 2 Not shown in the figure.

[0038] It should be added that the front end of the top plate 1 of the frame is ahead of the driven running wheel 3, forming a collision end 4 for colliding with the stop plate. Figure 2 The extended collision end 4 can prevent the driven running wheel 3 from contacting the stop plate and causing damage to the running wheel when a collision is implemented.

[0039] Furthermore, Figure 1 As shown, the guide rail 9 is an I-beam fixed between the test start point and the test end point in the test field, which is used to limit the motion trajectory of the driving vehicle to a straight line. It should be added that at least one set of guide wheel components is also provided below the frame top plate 1 of the driving vehicle. Figure 2 As shown, the guide wheel assembly includes two guide wheels 10 relatively arranged below the top plate 1 through a vertical plate 11. In actual use, the rolling surfaces of the two guide wheels 10 contact the two side surfaces of the I-beam vertical ribs respectively. The guide wheels 10 cooperate with the guide rails 9 to limit the driving vehicle from moving straight along the guide rails 9 to hit the stop plate in front.

[0040] When performing a collision test on the binding sample in accordance with 6.7.3 Collision Test of GB / T 40932-2021 "Requirements and Test Methods for Step-in Bindings for Snowboards": First, pre-treat the sample at -20°C for at least 1.5 hours. Then insert the artificial leg into the ski boot, install the sample (i.e., binding sample) on the chassis, and then install the ski boot on the binding sample. Assemble the drive vehicle to the guide rail 9 and make the collision end 4 face the stop plate. Start the drive vehicle to accelerate the drive vehicle carrying the binding sample. When the speed reaches the standard requirement of 4m / s, collide with the stop plate. The time from acceleration to collision is controlled to be completed within 5 minutes.

[0041] After the impact test, observe whether the ski boot slips off the binding sample.

[0042] It should be noted that the above is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A ski binding collision test device, characterized in that: It includes a driving vehicle for dynamically simulating the fixture specimen and a stopping mechanism disposed at the end point of the test for colliding with the driving vehicle; The driving vehicle comprises a frame with a top plate, a running wheel mounted on the frame and located below the top plate, and a driving mechanism fixed below the top plate of the frame; the driving mechanism is in transmission connection with the running wheel; A chassis for mounting a fixture sample is fixedly arranged on the top plate of the frame.

2. The ski binding collision test device according to claim 1, characterized in that: The stop mechanism is a stop plate provided at the end point of the test; The front end of the frame top plate is a collision end ahead of the running wheel, and the collision end faces the stop plate.

3. The ski binding collision test device according to claim 2, characterized in that: The running wheels include two active running wheels mounted on the rear end of the frame and two driven running wheels mounted on the front end of the frame; The collision end of the frame top plate is ahead of the two driven running wheels.

4. The ski binding collision test device according to claim 3, characterized in that: The driving mechanism includes a motor fixedly mounted below the top plate of the frame, a reducer mounted on the power output end of the motor, and a transmission shaft mounted below the top plate of the frame; The reducer is in driving connection with the transmission shaft; the transmission shaft is in driving connection with two active walking wheels.

5. The ski binding collision test device according to claim 4, characterized in that: The reducer and the transmission shaft as well as the transmission shaft and the two active walking wheels are connected through synchronous belt transmission.

6. The ski binding collision test device according to claim 5, characterized in that: A plurality of weight-reducing holes are arranged on the top plate of the frame.

7. The ski binding collision test device according to any one of claims 1 to 6, characterized in that: Also included is a guide rail disposed between a test start point and a test end point for causing the driving vehicle to move in a straight line; A guide wheel assembly for cooperating with the guide rail is provided below the frame top plate of the driving vehicle.

8. The ski binding collision test device according to claim 7, characterized in that: The guide rail is an I-beam; The guide wheel assembly comprises two guide wheels which are relatively fixed below the top plate of the frame, and the rolling surfaces of the two guide wheels contact the two side surfaces of the I-beam respectively.

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