A portable track gauge adjustment device for level crossings
By designing a portable track gauge adjustment device for level crossings, which employs a screw, sleeve, and graduated groove structure, the problems of large size, low precision, and poor environmental adaptability of traditional track gauge adjustment equipment have been solved. This enables rapid and accurate track gauge monitoring and adjustment, thereby improving railway operation efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YAOJIE COAL & ELECTRICITY GROUP CO LTD RAILWAY TRANSPORTATION CO
- Filing Date
- 2025-09-03
- Publication Date
- 2026-07-31
AI Technical Summary
Existing track gauge adjustment equipment is bulky, inconvenient to operate, and difficult to guarantee accuracy. It is also limited in use in harsh environments and cannot quickly and effectively monitor and adjust track gauge, affecting railway operation safety and efficiency.
A portable track gauge adjustment device for level crossings was designed. It adopts a screw, sleeve and scale groove structure. Precise adjustment is achieved by the scale in the scale groove and the adjusting nut. The accuracy is improved by combining it with a track gauge measuring instrument. The device is small and portable and is suitable for spaces with limited space and complex environments.
It enables rapid and precise gauge adjustment in confined spaces and complex environments, improving construction efficiency and safety, reducing labor costs, and meeting the needs of modern railway transportation.
Smart Images

Figure CN224578568U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of track maintenance technology, specifically to a portable track gauge adjustment device for level crossings. Background Technology
[0002] Traditional track gauge adjustment work at level crossings faces numerous challenges. Firstly, most existing gauge adjustment equipment is bulky and inconvenient to operate, making it unsuitable for the actual track gauge adjustment needs at level crossings. In areas like level crossings with limited space and complex traffic conditions, installing large-volume gauge adjusters is extremely difficult, increasing labor costs, extending operation time, and disrupting normal railway operations.
[0003] Secondly, the accuracy of traditional track gauge adjustment methods is difficult to guarantee. Due to the limitations of the equipment itself and the error of human operation, it is difficult to achieve a precise standard when adjusting the track gauge. Excessive track gauge deviation can cause swaying and bumping during train operation, and in severe cases, may even lead to major safety accidents such as derailment. Moreover, during long-term train operation, the rails will be subjected to varying degrees of wear and compression, and the track gauge is prone to change, requiring regular inspection and adjustment. Traditional methods are inefficient in dealing with frequent track gauge adjustment needs and cannot guarantee the accuracy of the track gauge in a timely and effective manner.
[0004] Furthermore, the use of traditional gauge adjustment equipment is severely limited in certain special environments, such as severe weather or remote areas. For example, in cold winters, the equipment's components are prone to freezing, jamming, and other problems. These factors make it difficult for traditional gauge adjustment technology to meet the needs of modern railway transportation development. Utility Model Content
[0005] This invention provides a portable track gauge adjustment device for level crossings, which solves the problems of existing track gauge adjusters being difficult to carry, time-consuming and laborious to adjust, unable to quickly and easily monitor track gauge changes, and greatly affected by the environment.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: A portable track gauge adjustment device for a level crossing includes a lead screw, with a sleeve threaded onto the outer side of one end of the lead screw, and an adjusting nut fixedly connected to the other end of the lead screw. A scale groove is formed through the lead screw, and a scale is provided in the scale groove.
[0007] Furthermore, the operator can use tools such as a wrench to turn the adjusting nut, thereby rotating the lead screw and causing it to extend and retract within the sleeve.
[0008] Furthermore, the gauge adjuster is horizontally positioned between the concrete slab at the crossing and the rail, and multiple gauge adjusters can be installed simultaneously.
[0009] This utility model has the following beneficial effects: This utility model includes a lead screw with a sleeve at one end and an adjusting nut connected to the other end. The lead screw has a graduated groove with graduations. When widening the track gauge, the adjuster should be inserted into the gap between the rail and the inner concrete slab of the track crossing. When narrowing the track gauge, the adjuster should be inserted into the gap between the rail and the outer concrete slab of the track crossing. Then, the adjusting nut should be gently turned with a wrench to initially fix the adjuster. The track gauge is then measured using a track gauge measuring instrument to determine the deviation value. The operator adjusts the gauge according to the value and the graduations on the lead screw, and measures the track gauge at regular intervals. When the track gauge is close to the standard value, the track gauge adjuster is fine-tuned until the track gauge is within the standard range. This device improves accuracy through multiple measurements, is small, simple, and portable, and can quickly monitor track gauge changes, effectively improving construction efficiency. Attached Figure Description
[0010] Figure 1 This is a schematic diagram illustrating the application effect of this utility model.
[0011] Figure 2 This is a schematic diagram of the lead screw of this utility model.
[0012] Figure 3 This is a schematic diagram of the overall layout of this utility model.
[0013] The meanings of the reference numerals in the attached figures are as follows: 1. Lead screw; 2. Sleeve; 3. Scale; 4. Adjusting nut; 5. Outer track edge concrete slab; 6. Inner track edge concrete slab; 7. Rail; 8. Track gauge adjuster; 9. Scale groove. Detailed Implementation
[0014] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0015] like Figure 1-2 As shown, a portable level crossing gauge adjustment device includes a lead screw 1, a sleeve 2 threaded on the outer side of one end of the lead screw 1, and an adjusting nut 4 fixedly connected to the other end of the lead screw 1. A scale groove 9 is provided through the lead screw 1, and a scale 3 is provided in the scale groove 9.
[0016] In practical use, the lead screw 1 has a sleeve 2 on one end and an adjusting nut 4 connected to the other end. The lead screw 1, adjusting nut 4, and sleeve 2 all have scales 3 on their outer sides. When expanding the track gauge, the track gauge adjuster 8 should be inserted into the gap between the rail 7 and the inner track level concrete slab 6. When reducing the track gauge, the track gauge adjuster 8 should be inserted into the gap between the rail 7 and the outer track level concrete slab 5. Then, the adjusting nut 4 should be gently turned with a wrench to initially fix the track gauge adjuster 8. The track gauge should then be measured using a track gauge measuring instrument to determine the deviation value. The operator adjusts the lead screw 1 according to the value and the scale 3 on the lead screw 1. Simultaneously, the track gauge is measured periodically. When the track gauge approaches the standard value, the track gauge adjuster 8 is fine-tuned until the track gauge is within the standard range. This device improves accuracy through multiple measurements, is small, simple, and portable, and can quickly monitor track gauge changes, effectively improving construction efficiency.
Claims
1. A portable crossing rail gauge adjustment device, characterised in that: Includes a lead screw (1), with a sleeve (2) threaded on the outer side of one end of the lead screw (1) and an adjusting nut (4) fixedly connected to the other end of the lead screw (1). A scale groove (9) is provided through the lead screw (1), and a scale (3) is provided in the scale groove (9).