Vehicle road brake test data acquisition equipment

Abstract

The utility model is suitable for the technical field of vehicle brake tests, and provides vehicle road brake test data acquisition equipment, which comprises a storage tank and an outgoing line measurement assembly, the storage tank is used for storing the measuring rope; the outgoing line measuring assembly comprises a mounting cover and a wire measuring cylinder, the mounting cover is detachably mounted on the storage tank, and the wire measuring cylinder is spherically hinged to the mounting cover; one end of the measuring rope is stored in the storage tank, and the other end of the measuring rope penetrates through the wire measuring cylinder and extends to be detachably locked on the vehicle; an infrared distance measuring ring is installed in the wire measuring cylinder and used for measuring the length of a measuring rope passing through the wire measuring cylinder. The vehicle braking distance can be converted into the length of pulling out the measuring rope, accurate and efficient test data acquisition can be completed as long as the length of pulling out the measuring rope is measured, and the situation that a braking path is irregularly bent and is not easy to acquire in the braking process of a vehicle on a gravel road surface or some easy-to-slip road surfaces under rain is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle braking tests, in particular to a vehicle road braking test data acquisition device. Background Art

[0002] A road test is a common method for measuring braking distance. On an open road, a vehicle is driven at a constant speed, and the distance required for the vehicle to come to a complete stop is recorded while braking. Braking tests are conducted on a safe testing ground, accelerating at a constant speed and recording the distance required for the vehicle to come to a complete stop while braking. Testing can be performed at various speeds to evaluate braking performance under varying conditions. Braking distance is a key parameter for measuring vehicle braking performance. It refers to the distance a driver travels from the start of braking to the complete stop of the vehicle at a specific speed.

[0003] There are three main indicators for evaluating a vehicle's braking performance: braking efficiency, braking efficiency consistency, and directional stability during braking. Directional stability during braking is also correlated with the material of the actual test surface. Testing on various surfaces, such as asphalt, cement concrete, precast cement concrete blocks, interlocking pavers, stone blocks, graded macadam, and water- or mud-bonded graded macadam, can improve the accuracy of vehicle braking tests on different surfaces. For example, the Chinese patent for an automotive braking force detection device (authorization publication number CN215984979U) describes vehicle braking tests conducted on various surfaces.

[0004] However, on gravel roads or some slippery roads after rain, the vehicle's path during braking is often not straight, but irregularly curved. Therefore, the traditional direct measurement of the distance between the braking start and end point is obviously not scientific enough. At the same time, the irregular curved braking path is not easy to measure, and data collection is difficult. Utility Model Content

[0005] The purpose of the embodiment of the present utility model is to provide a vehicle road braking test data acquisition device, which aims to solve the problem that on gravel roads or some slippery roads after rain, the vehicle's path during the braking process is often not straight, but irregularly curved. Therefore, the traditional direct measurement of the distance between the braking start point and the braking end point is obviously not scientific enough; at the same time, the irregular curved braking path is not easy to measure, and data collection is difficult.

[0006] Specifically: A vehicle road brake test data acquisition device includes a storage tank, a connecting seat assembly, a support seat assembly and an outlet measurement assembly; the storage tank is used to store a measuring rope; the connecting seat assembly is assembled at the bottom of the storage tank, used to position the storage tank at a point; the support seat assembly is assembled at the bottom of the connecting seat assembly, used to position the connecting seat assembly and the storage tank at a point; the outlet measurement assembly is assembled on the side wall of the storage tank; wherein, the outlet measurement assembly includes a mounting cover and a wire measuring cylinder, the mounting cover is detachably mounted on the storage tank, and the wire measuring cylinder ball is hinged to the mounting cover; one end of the measuring rope is stored inside the storage tank, and the other end is inserted through the wire measuring cylinder and extended to be detachably locked on the vehicle; an infrared ranging ring is installed inside the wire measuring cylinder, and the infrared ranging ring is used to measure the length of the measuring rope passing through the wire measuring cylinder;

[0007] Before the vehicle road braking test, the storage tank is positioned at a point by the connecting seat assembly and the supporting seat assembly, and one end of the measuring rope passing through the outside of the wire measuring cylinder is detachably locked on the vehicle. When the vehicle is moving and brakes, the wire measuring cylinder is used to measure the length of the measuring rope passing through the wire measuring cylinder to collect braking distance data; the vehicle braking distance can be converted into the length of the measuring rope pulled out. As long as the length of the measuring rope pulled out is measured, accurate and efficient test data collection can be completed, avoiding the situation where the braking path is irregularly curved and difficult to collect data during the braking process of the vehicle on gravel roads or some slippery roads after rain.

[0008] The technical solution of this application is further described below:

[0009] In one embodiment, the wire measuring tube includes a guide tube with an external hinge ball disposed on the main body of the guide tube. The guide tube is articulated to the mounting cover via the external hinge ball, which is used to accommodate the need to pull the wire measuring tube at various angles when the vehicle brakes on an irregular path. When a vehicle brakes, the vehicle brakes on an irregular path, causing the wire measuring tube to be pulled at various angles. Because the guide tube is articulated to the mounting cover via the external hinge ball, this can accommodate the need to pull the wire measuring tube at various angles when the vehicle brakes on an irregular path, improving the smoothness of the measuring cable's passage and, in turn, enhancing data acquisition accuracy.

[0010] Furthermore, a plurality of inner steel balls are respectively ball-hinged at the ends of the guide cylinder, and the inner steel balls are used to improve the maneuverability of the measuring rope passing through; and the infrared ranging ring is arranged inside the main body of the guide cylinder.

[0011] In one embodiment, a storage cavity is provided inside the storage tank, and a winding structure for winding the measuring rope is rotatably installed inside the storage cavity; an installation notch is provided on the side wall of the storage tank, and the installation notch is connected to the storage cavity.

[0012] Furthermore, the mounting cover is detachably mounted on the mounting notch by a plurality of bolts to complete the installation on the storage tank.

[0013] Furthermore, the winding structure includes a winding roller, which is provided with a rotating shaft running through it, and the rotating shaft is distributed along the column center line of the winding roller; the rotating shaft rotates inside the storage cavity through a bearing; a turning handle is provided outside the storage tank, which is rotatably fixed on the rotating shaft.

[0014] In one embodiment, an adjustment frame is installed between the connecting seat assembly and the supporting seat assembly, and the adjustment frame includes an angle adjustment seat and a telescopic rod. One end of the telescopic rod is assembled on the angle adjustment seat, and the other end is assembled on the connecting seat assembly. The angle adjustment seat is inserted and fixed on the supporting seat assembly.

[0015] Furthermore, the angle adjustment seat is internally installed with a motor, which is used to drive the connecting seat assembly, the storage tank and the wire measuring tube to rotate horizontally; the telescopic rod is used to adjust the height of the connecting seat assembly, the storage tank and the wire measuring tube.

[0016] Furthermore, the support base assembly is provided with a plurality of mounting holes around it, and the mounting holes are used to cooperate with the fixing pins to position the support base assembly, the connecting base assembly and the storage tank at one point.

[0017] Furthermore, the connecting seat assembly includes a connecting arm and a connecting platform. The connecting arm is fixed on the connecting platform. A limiting ring is fixed on the end of the connecting arm away from the connecting platform. The limiting ring is used to insert a rope, and the rope is used to position the storage tank at a point; an installation cavity is opened on the connecting platform, and the installation cavity is used to place the adjustment rack.

[0018] Compared with the existing technology, the vehicle road brake test data acquisition equipment of this utility model can achieve the following:

[0019] Before a vehicle road braking test, the storage tank is positioned at a point via the connecting seat assembly and the supporting seat assembly, and one end of the measuring rope extending from the outside of the wire measuring cylinder is detachably locked to the vehicle. When the vehicle is moving and braking, the wire measuring cylinder is used to measure the length of the measuring rope passing through the wire measuring cylinder to collect braking distance data. The vehicle braking distance can be converted into the length of the measuring rope pulled out. By simply measuring the length of the measuring rope pulled out, accurate and efficient test data collection can be completed, avoiding the situation where the braking path is irregularly curved and difficult to collect data during braking on gravel roads or some slippery roads after rain.

[0020] When a vehicle brakes, it will brake on an irregular path. During this process, the measuring wire tube will be pulled at different angles. Since the guide tube is hinged to the mounting cover via an external hinge ball, it can meet the need to pull the measuring wire tube at different angles when the vehicle brakes on an irregular path, improving the smoothness of the measuring wire's passage and thus improving the accuracy of data collection.

[0021] When the vehicle is undergoing a braking test, the angle of the wire measuring tube is adjusted by rotating the angle adjustment seat horizontally, and the height of the wire measuring tube is adjusted by combining the telescopic rod. This can meet the need to pull the wire measuring tube at different angles when the vehicle brakes on an irregular path, and can adapt to different types of vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a schematic diagram of the structure of the vehicle road brake test data acquisition device of the utility model;

[0024] Figure 2 for Figure 1 Schematic diagram of the structure of the mid-line measurement component;

[0025] Figure 3 for Figure 2 Schematic diagram of the structure of the middle conductor measuring tube;

[0026] Figure 4 for Figure 3 Transverse cross-section of the center conductor measuring tube;

[0027] Figure 5 for Figure 1 Schematic diagram of the structure of the removed outgoing line measurement component;

[0028] Figure 6 for Figure 1 Schematic diagram of the assembly structure of the middle connecting seat assembly and the supporting seat assembly;

[0029] Figure 7 for Figure 6 Demonstration diagram of the middle connecting seat assembly and the supporting seat assembly being adjusted and separated by the adjustment frame;

[0030] Figure 8 for Figure 1 A schematic diagram of the structure of the middle support seat assembly;

[0031] Figure 9 for Figure 1 Schematic diagram of the structure of the middle connecting seat assembly.

[0032] In the accompanying drawings:

[0033] 100 - Outgoing line measurement assembly; mounting cover 110, conductor measuring cylinder 120; outer hinge ball 121, guide cylinder 122, inner steel ball 123, infrared ranging ring 124;

[0034] 200 - storage tank; storage cavity 210, installation gap 220;

[0035] 300-connecting seat assembly; limiting ring 310, connecting arm 320, connecting platform 330, installation cavity 340;

[0036] 400-support base assembly; adjustment frame 410, mounting hole 420; telescopic rod 4101, angle adjustment base 4102. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the present invention and are not intended to limit the present invention. The specific implementation of the present invention is described in detail below with reference to the specific embodiments.

[0038] In the embodiment of the present utility model, Figures 1-6 Shown: A vehicle road braking test data acquisition device, comprising:

[0039] A storage tank 200 is used to store the measuring rope;

[0040] A connecting seat assembly 300 is assembled at the bottom of the storage tank 200 and is used to position the storage tank 200 at a point;

[0041] The support base assembly 400 is assembled at the bottom of the connecting base assembly 300 and is used to position the connecting base assembly 300 and the storage tank 200 at one point;

[0042] The outgoing line measurement assembly 100 is assembled on the side wall of the storage tank 200;

[0043] The outgoing line measurement assembly 100 includes a mounting cover 110 and a conductor measuring barrel 120. The mounting cover 110 is detachably mounted on a storage tank 200, and the conductor measuring barrel 120 is ball-hinged on the mounting cover 110. One end of the measuring wire is stored in the storage tank 200, and the other end passes through the conductor measuring barrel 120 and is extended and detachably locked to the vehicle. An infrared ranging ring 124 is installed inside the conductor measuring barrel 120 for measuring the length of the measuring wire passing through the conductor measuring barrel 120.

[0044] Regarding the "infrared ranging ring 124", it should be noted that the infrared ranging ring 124 is a prior art, and may be, for example, a structure equipped with an infrared ranging sensor. Its detailed structure can be found in existing literature journals, and it can also be purchased directly on the market, or it can be assembled from components purchased on the market. It is not intended to be protected by the present invention and will not be elaborated on here.

[0045] Therefore, before the vehicle road braking test, the storage tank 200 is positioned at a point by the connecting seat assembly 300 and the supporting seat assembly 400, and one end of the measuring rope passing through the outside of the wire measuring cylinder 120 is detachably locked to the vehicle. When the vehicle is moving and braking, the wire measuring cylinder 120 is used to measure the length of the measuring rope passing through the wire measuring cylinder 120 to collect braking distance data; the vehicle braking distance can be converted into the length of the measuring rope pulled out. As long as the length of the measuring rope pulled out is measured, accurate and efficient test data collection can be completed, avoiding the situation where the braking path is irregularly curved and difficult to collect data during the vehicle braking process on gravel roads or some slippery roads after rain.

[0046] At the same time, it should be noted that the method of triggering the infrared distance measuring ring 124 by vehicle braking to measure the length of the measuring rope passing through the wire measuring tube 120 is a prior art method. For example, an electromagnetic switch may be triggered by a wireless network to start the infrared distance measuring ring 124.

[0047] In addition to using the infrared ranging ring 124 to measure the length of the measuring rope passing through the wire measuring tube 120, a marking device can also be used to mark the measuring rope when the vehicle starts to brake, and then mark the measuring rope again after the braking is completed. Finally, the measuring rope is straightened to measure the distance, thereby completing accurate and efficient test data collection.

[0048] In the embodiment of the present utility model, Figures 1-4 As shown: the wire measuring cylinder 120 includes a guide cylinder 122, and an external hinge ball 121 is provided on the main body of the guide cylinder 122; the guide cylinder 122 is hinged to the mounting cover 110 through the external hinge ball 121, which is used to meet the need to pull the wire measuring cylinder 120 at different angles when the vehicle brakes on an irregular path.

[0049] Therefore, when the vehicle brakes, the vehicle brakes on an irregular path. During this process, the wire measuring tube 120 will be pulled at different angles. Since the guide tube 122 is hinged to the mounting cover 110 through the external hinge ball 121, it can meet the need to pull the wire measuring tube 120 at different angles when the vehicle brakes on an irregular path, thereby improving the smoothness of the measuring rope passing through, which is conducive to improving the accuracy of data collection.

[0050] In the embodiment of the present utility model, Figure 3 and Figure 4 As shown, a plurality of inner steel balls 123 are respectively ball-hinged at the ends of the guide cylinder 122 , and the inner steel balls 123 are used to improve the maneuverability of the measuring rope passing through; an infrared ranging ring 124 is arranged inside the main body of the guide cylinder 122 .

[0051] In the embodiment of the present utility model, Figure 1 and Figure 5 As shown: the storage tank 200 is provided with a storage cavity 210 inside, and a winding structure for winding the measuring rope is rotatably assembled inside the storage cavity 210; the storage tank 200 is provided with an installation notch 220 on its side wall, and the installation notch 220 is connected to the storage cavity 210.

[0052] Further, such as Figure 1 and Figure 5 As shown: the mounting cover 110 is detachably mounted on the mounting notch 220 by a plurality of bolts, and is thus mounted on the storage tank 200 .

[0053] The winding structure includes a winding roller, which is provided with a rotating shaft running through it and distributed along the column center line of the winding roller; the rotating shaft rotates inside the storage cavity 210 through a bearing; a handle is provided outside the storage tank 200 and is rotated and fixed on the rotating shaft.

[0054] In the embodiment of the present utility model, Figure 5-8 As shown: an adjustment frame 410 is installed between the connecting seat assembly 300 and the supporting seat assembly 400, and the adjustment frame 410 includes an angle adjustment seat 4102 and a telescopic rod 4101. One end of the telescopic rod 4101 is assembled on the angle adjustment seat 4102, and the other end is assembled on the connecting seat assembly 300. The angle adjustment seat 4102 is inserted and fixed on the supporting seat assembly 400.

[0055] Further, such as Figure 6-Figure 8 As shown: the angle adjustment seat 4102 is equipped with a motor inside, which is used to drive the connecting seat assembly 300, the storage tank 200 and the wire measuring cylinder 120 to rotate horizontally; the telescopic rod 4101 is used to adjust the height of the connecting seat assembly 300, the storage tank 200 and the wire measuring cylinder 120.

[0056] Therefore, when the vehicle is undergoing a braking test, the angle of the wire measuring cylinder 120 is adjusted by rotating the angle adjustment seat 4102 laterally, and the height of the wire measuring cylinder 120 is adjusted by combining the telescopic rod 4101, so as to meet the need of pulling the wire measuring cylinder 120 at different angles when the vehicle brakes on an irregular path, and adapt to different types of vehicles.

[0057] In the embodiment of the present utility model, Figure 8 As shown: the support base assembly 400 is provided with a plurality of mounting holes 420 around it, and the mounting holes 420 are used to cooperate with the fixing pins to position the support base assembly 400, the connecting base assembly 300 and the storage tank 200 at one point.

[0058] In the embodiment of the present utility model, Figure 7 and Figure 9 As shown: the connecting seat assembly 300 includes a connecting arm 320 and a connecting platform 330, the connecting arm 320 is fixed on the connecting platform 330, and the connecting arm 320 is fixed with a limiting ring 310 at the end away from the connecting platform 330, the limiting ring 310 is used to insert the rope, and use the rope to position the storage tank 200 at a point; an installation cavity 340 is opened on the connecting platform 330, and the installation cavity 340 is used to place the adjustment frame 410.

[0059] The goal is to improve the accuracy of vehicle road braking tests on different road surfaces. For example, a Chinese patent application for a vehicle braking force detection device (authorization publication number CN215984979U) describes vehicle braking tests on different road surfaces. However, on gravel roads or slippery roads after rain, the vehicle's braking path is often irregular, not straight. Therefore, traditional direct measurement of the distance between the braking start and end point is clearly unscientific. Furthermore, irregular, curved braking paths are difficult to measure, making data collection challenging. The present vehicle road braking test data acquisition device can achieve the following:

[0060] Before the vehicle road braking test, the storage tank 200 is positioned at a point by connecting the seat assembly 300 and the support seat assembly 400, and one end of the measuring rope passing through the outside of the wire measuring cylinder 120 is detachably locked on the vehicle. When the vehicle is moving and braking, the wire measuring cylinder 120 is used to measure the length of the measuring rope passing through the wire measuring cylinder 120 to collect the braking distance data; the vehicle braking distance can be converted into the length of the measuring rope pulled out. As long as the length of the measuring rope pulled out is measured, accurate and efficient test data collection can be completed, avoiding the situation where the braking path is irregularly curved and difficult to collect data during the braking process of the vehicle on some slippery roads such as gravel roads or rainy roads.

[0061] The structures, proportions, sizes, etc. illustrated in this specification are intended solely to facilitate understanding and reading by those skilled in the art. They are not intended to limit the conditions under which the present invention may be implemented, and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in size, provided they do not affect the efficacy and objectives of the present invention, shall remain within the scope of the technical content disclosed in the present invention. In the description of the present invention, unless otherwise specified, "a plurality" means two or more.

[0062] In the description of the present invention, although the embodiments of the present invention have been shown and described, it can be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

[0063] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A vehicle road braking test data acquisition device, characterized in that: include: A storage tank (200) for storing a measuring rope; A connecting seat assembly (300) is assembled on the bottom of the storage tank (200) and is used to position the storage tank (200) at a point; A support seat assembly (400) is assembled on the bottom of the connecting seat assembly (300) and is used to position the connecting seat assembly (300) and the storage tank (200) at one point; An outlet measurement assembly (100) is assembled on a side wall of the storage tank (200); The outlet measuring assembly (100) comprises a mounting cover (110) and a conductor measuring cylinder (120), wherein the mounting cover (110) is detachably mounted on a storage tank (200), and the conductor measuring cylinder (120) is ball-hinged on the mounting cover (110); one end of the measuring rope is stored inside the storage tank (200), and the other end is inserted through the conductor measuring cylinder (120) and extended to be detachably locked on a vehicle; an infrared ranging ring (124) is installed inside the conductor measuring cylinder (120), and the infrared ranging ring (124) is used to measure the length of the measuring rope passing through the conductor measuring cylinder (120).

2. The vehicle road brake test data acquisition device according to claim 1, characterized in that: The wire measuring cylinder (120) comprises a guide cylinder (122), and an external hinge ball (121) is provided on the main body of the guide cylinder (122); the guide cylinder (122) is hinged to the mounting cover (110) via the external hinge ball (121), and is used to cope with the need to pull the wire measuring cylinder (120) at different angles when a vehicle brakes on an irregular path.

3. The vehicle road braking test data acquisition device according to claim 2, characterized in that: A plurality of inner steel balls (123) are respectively ball-hinged at the ends of the guide cylinder (122). The inner steel balls (123) are used to improve the maneuverability of the measuring rope passing through. An infrared distance measuring ring (124) is arranged inside the main body of the guide cylinder (122).

4. A vehicle road brake test data acquisition device according to claim 1, 2 or 3, characterized in that: The storage tank (200) has a storage cavity (210) formed therein, and a reeling structure for reeling in the measuring rope is rotatably mounted therein; the storage tank (200) has a mounting notch (220) formed on its side wall, and the mounting notch (220) is connected to the storage cavity (210).

5. The vehicle road braking test data acquisition device according to claim 4, characterized in that: The mounting cover (110) is detachably mounted on the mounting notch (220) via a plurality of bolts, and is thus mounted on the storage tank (200).

6. The vehicle road brake test data acquisition device according to claim 4, characterized in that: The winding structure comprises a winding roller, a rotating shaft is provided through the winding roller, and the rotating shaft is distributed along the column center line of the winding roller; the rotating shaft rotates inside the storage cavity (210) through a bearing; and a turning handle is provided outside the storage tank (200) and is rotatably fixed on the rotating shaft.

7. The vehicle road brake test data acquisition device according to claim 1, characterized in that: An adjustment frame (410) is installed between the connecting seat assembly (300) and the supporting seat assembly (400). The adjustment frame (410) includes an angle adjustment seat (4102) and a telescopic rod (4101). One end of the telescopic rod (4101) is assembled on the angle adjustment seat (4102), and the other end is assembled on the connecting seat assembly (300). The angle adjustment seat (4102) is inserted and fixed on the supporting seat assembly (400).

8. The vehicle road brake test data acquisition device according to claim 7, characterized in that: The angle adjustment seat (4102) has a motor installed therein, and the motor is used to drive the connecting seat assembly (300), the storage tank (200) and the wire measuring cylinder (120) to rotate horizontally; the telescopic rod (4101) is used to adjust the height of the connecting seat assembly (300), the storage tank (200) and the wire measuring cylinder (120).

9. The vehicle road braking test data acquisition device according to claim 7, characterized in that: The support base assembly (400) is provided with a plurality of mounting holes (420) around it, and the mounting holes (420) are used to cooperate with the fixing pins to position the support base assembly (400), the connecting base assembly (300) and the storage tank (200) at one point.

10. The vehicle road brake test data acquisition device according to claim 7, characterized in that: The connecting seat assembly (300) comprises a connecting arm (320) and a connecting platform (330), wherein the connecting arm (320) is fixed on the connecting platform (330), and a limiting ring (310) is fixed at one end of the connecting arm (320) away from the connecting platform (330), wherein the limiting ring (310) is used to insert a rope, and the rope is used to position the storage tank (200) at a point; and an installation cavity (340) is provided on the connecting platform (330), and the installation cavity (340) is used to place the adjustment frame (410).

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