Parking device of rail detector
By designing a parking device for the track inspection instrument, and utilizing a tension spring and eccentric shaft structure, the problem of preventing the track inspection instrument from slipping when it stops measuring was solved, achieving stable parking, reducing instrument damage and safety hazards, and the equipment is simple and easy to maintain.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU XINDA HENGTAI RAIL TRANSIT EQUIP CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-04-24
AI Technical Summary
Existing track inspection instruments lack anti-slip devices when they stop measuring, which makes the instruments prone to slipping on slopes or in windy conditions, causing damage and safety hazards.
Design a parking device for a track inspection instrument. It utilizes a structure of tension spring and eccentric shaft, and parking is achieved by operating the brake plate against the traveling wheel through a handle. The device includes a combination of brake plate, brake seat, tension spring, eccentric shaft, handle and handle seat, which realizes the switching between braking and releasing the brake.
It achieves stable parking of the track detector, avoids slippage, reduces instrument damage and safety hazards, and the equipment has a simple structure and is easy to maintain.
Smart Images

Figure CN224159273U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of track inspection instrument technology, and in particular to a track inspection instrument parking device. Background Technology
[0002] In recent years, with the rapid development of high-speed rail and subways, various track parameter testing instruments and power supply parameter testing instruments have been widely used. In particular, manually pushed testing instruments on the track can automatically complete the testing of track parameters or power supply contact network parameters during the pushing process. These instruments are generally designed with a push rod mounted on them, which is manually held and used to push the instrument on the track. The instrument's stopping is entirely controlled manually via the push rod. Currently, there are no patents, journals, or books on anti-slip parking devices for track inspection instruments. Existing track inspection instruments are not designed with anti-slip devices in mind when the instrument stops measuring. Therefore, manual control is necessary once the track inspection instrument is placed on the track. However, in actual field use, due to operator negligence, especially on slopes or in windy conditions, track inspection instruments frequently slip off, causing damage and even affecting train operation, posing serious safety hazards. Therefore, improvements are needed. Utility Model Content
[0003] Therefore, it is necessary to provide a track inspection instrument parking device to address the above problems.
[0004] A track inspection instrument parking device includes a track inspection instrument frame, a brake plate, a brake seat, a tension spring, an eccentric shaft, a handle, and a handle seat. The handle seat and the brake seat are respectively installed on the upper and lower sides of the track inspection instrument frame and connected by bolts. The brake seat has a channel, and the upper end of the brake plate is movably inserted into the channel. The lower end of the brake plate movably abuts against the running wheels on the track inspection instrument frame. The handle passes through the handle seat and the track inspection instrument frame in sequence and is inserted into the channel, and is connected to the eccentric shaft. The eccentric shaft passes through a through hole at the upper end of the brake plate and abuts against the inner wall of the through hole. Two sets of tension springs are arranged on both sides of the channel. A pin is provided at the upper end of the brake plate, and the pull hook of the tension spring is detachably connected to the pin.
[0005] Preferably, the side of the channel is provided with a notch corresponding to the pin.
[0006] Preferably, the brake plate is Z-shaped.
[0007] Preferably, a brake pad is provided on the lower end face of the brake plate.
[0008] Preferably, the screw passes through the channel from bottom to top and connects to the lower end of the eccentric shaft.
[0009] The advantages of this utility model are: the whole device has a simple structure, low cost, and is extremely convenient to maintain. It uses the force of the tension spring and the eccentric shaft's cam structure to move the brake plate to abut against the traveling wheel, thereby achieving parking and preventing slippage. Attached Figure Description
[0010] Figure 1 This is a front view structural diagram of a track inspection instrument parking device according to one embodiment;
[0011] Figure 2 A schematic diagram of the operating status of a track inspection instrument parking device;
[0012] Figure 3 This is a schematic diagram of the parking state of a track inspection instrument parking device;
[0013] Figure 4 This is a 3D schematic diagram of the brake mount;
[0014] Figure 5 This is a 3D schematic diagram of the brake pad;
[0015] Figure 6 This is a three-dimensional schematic diagram of an eccentric shaft. Detailed Implementation
[0016] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0017] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0019] like Figures 1-6 As shown, a track inspection instrument parking device includes a track inspection instrument frame 100, a brake plate 1, a brake seat 2, a tension spring 3, an eccentric shaft 4, a handle 5, and a handle seat 6. The handle seat 6 and the brake seat 2 are respectively installed on the upper and lower sides of the track inspection instrument frame 100 and connected by bolts. The brake seat 2 is provided with a channel 21. The upper end of the brake plate 1 is movably inserted into the channel 21, and the lower end of the brake plate 1 is movably abutted against the traveling wheel 101 on the track inspection instrument frame 100. The handle 5 passes through the handle seat 6 and the track inspection instrument frame 100 in sequence and is inserted into the channel 21 and connected to the eccentric shaft 4. The eccentric shaft 4 passes through the through hole 11 at the upper end of the brake plate 1 and abuts against the inner wall of the through hole 11. Two sets of tension springs 3 are arranged on both sides of the channel 21. The upper end of the brake plate 1 is provided with a pin 12, and the pull hook of the tension spring 3 is detachably connected to the pin 12. Specifically, the track inspection vehicle frame 100 is placed on the rail via the traveling wheels 101. To prevent slippage, a parking device is integrated into the track inspection vehicle frame 100. When operation is required, the operator manually rotates the handle 5, causing the eccentric shaft 4 to rotate within the brake seat 2. When the eccentric shaft 4 rotates 90°, the cam inserted into the brake plate 1 simultaneously deflects 90°, thereby causing the brake pad 1 to move within the channel 21 in the brake seat 2. This overcomes the spring force of the two tension springs 3, causing the tension springs 3 to change from their natural state to a stretched state, thus moving the brake pad 1 away from the brake seat 2, completing the transition from parking to operation. When parking is required, the operator only needs to rotate the handle 5 in the opposite direction to restore the cam of the eccentric shaft 4. At this time, the brake pad 1 will return to its original position under the spring force of the two tension springs 3, moving towards the side closer to the traveling wheel 101 until the lower end of the brake pad 1 abuts against the traveling wheel 101, thus completing parking. The entire device has a simple structure, low cost, and is extremely easy to maintain. It uses the force of the tension spring and the eccentric shaft's cam structure to move the brake plate to abut against the traveling wheel 101, thus achieving parking and preventing slippage.
[0020] like Figure 4 As shown, the side of the channel 21 is provided with a notch 22 corresponding to the pin 12. When the tension spring 3 retracts, it drives the pin 12 to retract into the notch 22. At the same time, the notch 22 can also play a vertical limiting role to prevent the pin 12 from swinging during the reciprocating horizontal displacement.
[0021] like Figure 5 As shown, the brake plate 1 is Z-shaped, integrally formed, and has high structural strength. The Z-shaped brake plate 1 has a vertical gradient, which can smoothly transmit the force from the eccentric shaft 4 and the tension spring 3 to the traveling wheel 101, thereby achieving the braking effect.
[0022] like Figures 1-3As shown, a brake pad 13 is provided on the lower end face of the brake plate 1. The brake pad 13 is made of rubber and is nailed to the lower end face of the brake plate 1 to increase the contact friction between the brake pad 1 and the traveling wheel 101 and prevent slippage.
[0023] like Figures 1-6 As shown, the screw passes through the channel 21 from bottom to top and connects to the lower end of the eccentric shaft 4, so that when the handle 5 drives the eccentric shaft 4 to rotate, it rotates in place and the lower end of the eccentric shaft 4 will not be deviated.
[0024] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A track inspection instrument parking device, comprising a track inspection instrument frame, characterized in that: It also includes a brake plate, a brake seat, a tension spring, an eccentric shaft, a handle, and a handle seat. The handle seat and the brake seat are respectively installed on the upper and lower sides of the track inspection instrument frame and are connected by bolts. The brake seat is provided with a channel, and the upper end of the brake plate is movably inserted into the channel. The lower end of the brake plate movably abuts against the traveling wheel on the track inspection instrument frame. The handle passes through the handle seat and the track inspection instrument frame in sequence and is inserted into the channel, and is connected to the eccentric shaft. The eccentric shaft passes through the through hole at the upper end of the brake plate and abuts against the inner wall of the through hole. Two sets of tension springs are arranged on both sides of the channel. The upper end of the brake plate is provided with a pin, and the tension hook of the tension spring is detachably connected to the pin.
2. The track inspection instrument parking device as described in claim 1, characterized in that: The side of the channel is provided with a notch corresponding to the pin.
3. The track inspection instrument parking device as described in claim 1, characterized in that: The brake pad is Z-shaped.
4. The track inspection instrument parking device as described in claim 1, characterized in that: The lower end face of the brake plate is provided with a brake pad.
5. The track inspection instrument parking device as described in claim 1, characterized in that: The screw passes through the channel from bottom to top and connects to the lower end of the eccentric shaft.