Passenger car turning diameter testing device

Abstract

The utility model provides a passenger car turning diameter testing device. The passenger car turning diameter testing device comprises a water storage part, a guide pipe part and a water diversion part, the upper end and the lower end of the guide pipe part are respectively communicated and connected with the water storage part and the water diversion part, and at least one vacuum chuck fixed by a hoop is fixedly assembled on a pipe body of the guide pipe part; and the water diversion part is a gooseneck pipe. According to the technical scheme, the vehicle can be assembled and disassembled without disassembling any part, operation can be independently completed by a single person, time and labor are saved, and accurate vehicle turning diameter measurement can be achieved; the technical scheme also has the technical advantages of simple structure, no power dependence and low manufacturing cost.

Description

Technical Field

[0001] This patent application relates to a vehicle running track detection device, and in particular to a turning diameter testing and measuring device for trackless vehicles. Background Art

[0002] The turning diameter measurement of trackless vehicles refers to measuring the diameter of the track circle where the center of the tire surface of the outer steering wheel of the vehicle is on the ground when the steering wheel is turned to the extreme angle position.

[0003] The current measurement method conventionally involves a tester following the moving vehicle while spraying water on the horizontal surface of the wheel or drawing a circle on the ground for measurement. This method poses considerable safety risks to the test participants. To this end, an automatic spraying device fixedly assembled on the wheel hub has emerged to replace manual operation and spray water on the horizontal surface of the tire when the vehicle is turning. However, it also has obvious defects: its wheel hub mounting structure requires the disassembly of the hub nut to complete fixed assembly and disassembly, which is cumbersome to load and unload, has poor versatility, and is not compatible with most vehicle models; secondly, the spraying device requires an external vehicle power supply to start the water pump or hydraulic equipment, and there is an electrical connection structure, which also has compatibility issues with some vehicle models; thirdly, the existing test device lacks liquid or powder flow rate control, making it very inconvenient to use. The above technical reasons make measurement inconvenient and difficult to achieve the accuracy required by the technology. Summary of the Invention

[0004] The invention purpose of this patent application is to provide a bus turning diameter test device that does not require dismantling any original components of the vehicle, can be independently installed and removed by a single person, the operation and water outlet positions can be easily adjusted, and is suitable for use in turning diameter tests of various vehicle models.

[0005] The technical solution of the bus turning diameter test device provided in this patent application mainly includes: a bus turning diameter test device, comprising a water storage part, a conduit part and a water diversion part;

[0006] The main body of the conduit is a water flow pipe, and a control valve is assembled on the pipe body; the upper end and the lower end of the conduit part are respectively connected to the water storage part and the water diversion part; the pipe body is fixedly assembled with at least one vacuum suction cup fixed by a clamp;

[0007] The water diversion part is a gooseneck pipe.

[0008] One of the preferred options of the above-mentioned overall technical solution is that the conduit portion is connected to the water storage portion via a heavy-duty water-gas rubber tube connecting section.

[0009] One preferred option of the above overall technical solution is to replace the vacuum suction cup with a magnet.

[0010] One preferred option of the above overall technical solution is that the gooseneck tube is a metal shaped hose.

[0011] The technical solution of the bus turning diameter testing device provided by this patent application has the following advantages over the prior art: the detachable structure of the device is changed, and it is fixed to the vehicle side by vacuum suction cups or magnets, without the need to remove any parts for assembly and disassembly. One person can complete the fixation and disassembly independently, which is convenient to operate, saves time and effort, and is also convenient for adjusting the fixed position when necessary; it is composed of a gooseneck tube, which has the characteristics of arbitrary bending and long-term stagnation in the bending state, and can be guided to the tire centerline where the wheel is close to the ground angle. This position can form a more accurate wetting trajectory, creating conditions for accurate measurement, and convenient bending adjustment, so that it is suitable for turning diameter measurement of different types of vehicles; the test operation of this whole set of equipment does not require any test personnel to follow, eliminating the safety hazards of existing testing methods, and also has the technical advantages of simple structure, no dependence on electricity, and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is the overall structural diagram of this patent application.

[0013] Figure 2 Schematic diagram of the installation used for measurements in this patent application. DETAILED DESCRIPTION

[0014] The following describes in detail the technical content of the bus turning diameter test device of this patent application through the embodiments shown in the accompanying drawings, and illustrates its application and technical effects. However, the embodiments shown in this patent application are only preferred embodiments, and the scope of protection of this patent application is not limited by the embodiments shown.

[0015] This bus turning diameter test device, such as Figure 1 As shown, it includes a water storage part, a conduit part and a water diversion part.

[0016] The water storage part is mainly a water storage bottle 1, preferably a transparent or translucent plastic material bottle, which is used to hold liquid that wets the ground and forms wet marks when the vehicle moves. The bottle mouth has a threaded mouth or a snap-on mouth that is convenient for pipe connection.

[0017] The main body of the conduit is a water flow pipe 2, and any of the upper, middle and lower parts of the pipe body is assembled with a control valve 21. The water flow pipe 2 is preferably made of hard material pipes, such as PVC, PE and other material pipes, which play a longitudinal supporting role for the water storage part.

[0018] The control valve 21 is used for opening and closing the water flow pipe 2, and is also mainly used for controlling the flow rate of liquid outflow.

[0019] The water bottle 1 is connected to the upper end of the conduit 2 via a heavy-duty water-vapor rubber hose connecting section 10. The connecting section 10 comprises synthetic rubber inner and outer layers, with a double-layer high-strength fiber braided reinforcement layer between them, which offers excellent toughness and resistance to bending. A hose clamp 11 secures the connection between the water bottle opening and the upper end of the water flow conduit 2.

[0020] The water flow pipe 2 has at least one vacuum suction cup 22 or magnet connected by a clamp fixed to its pipe body. The vacuum suction cup 22 or magnet fixes the entire device to the outer surface 4 of the side wall of the bus without removing any parts on the bus. Moreover, a single person can independently complete the assembly, disassembly and necessary position adjustment operations of the device on the bus.

[0021] Specifically, the vacuum suction cup 22 or magnet is locked on the water flow pipe 2 in conjunction with the rubber strip clamp 7 .

[0022] The main body of the water diversion part is a gooseneck tube 3 connected to the lower end of the conduit part.

[0023] The gooseneck tube 3 is preferably a metal shaped hose, which has the characteristics of being able to bend arbitrarily and to stay in a bent state for a long time. In this embodiment, the gooseneck tube 3 is connected and assembled on the control valve 21.

[0024] like Figure 2 As shown, the test process is: first, the conduit part is fixed on the outer surface 4 of the vehicle side panel behind the outer wheel of the steering wheel by vacuum adsorption or magnetic adsorption, and then the wheel 5 of the vehicle farthest from the steering center is turned to the extreme position, and the curvature of the gooseneck tube 3 is adjusted so that the water outlet of the gooseneck tube 3 points to the tire center line of the wheel close to the ground angle; unscrew the control valve 21, start the vehicle, and the outflowing liquid will form a wet arc mark on the ground with the moving vehicle. By measuring the diameter of the arc mark on the ground, the turning diameter of the vehicle can be directly, accurately and conveniently measured.

Claims

1. A bus turning diameter testing device, comprising a water storage portion, a conduit portion, and a water diversion portion; The main body of the conduit portion is a water flow pipe (2), and a control valve (21) is assembled on the pipe body; the upper end and the lower end of the conduit portion are respectively connected to the water storage portion and the water diversion portion; It is characterized in that At least one vacuum suction cup (22) fixed by a clamp is fixedly assembled on the pipe body of the water flow pipe (2); The water diversion part is a gooseneck pipe (3).

2. The bus turning diameter testing device according to claim 1, characterized in that: The gooseneck tube is a metal shaped hose.

3. The bus turning diameter testing device according to claim 1, characterized in that: The conduit portion is connected to the water storage portion via a heavy-duty water-gas rubber tube connecting section (10).

4. The bus turning diameter testing device according to claim 1, characterized in that: The vacuum chuck (22) is replaced by a magnet.

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