Edge trimming apparatus for a plastic track
By integrating paving surface and ground adaptation components into the trimming equipment, the edge trimming and smoothing of the plastic track is automatically completed, solving the problems of low trimming efficiency and unstable results in the existing technology, and realizing efficient and precise track edge trimming.
Patent Information
- Application Number
- CN202522561432.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-02
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-02
AI Technical Summary
In the current process of laying plastic running tracks, the edge trimming method is inefficient and relies on manual experience, resulting in uneven edges, material overflow, or excessively deep scratches, which affect the performance and appearance of the running track.
Design an edge trimming device for plastic running tracks, integrating a paving surface adaptation component, a ground adaptation component, and an edge trimming component. It automatically completes edge trimming and smoothing through rotating rollers and scrapers, achieving height self-adaptation and flexible adjustment.
It improves construction efficiency and trimming accuracy, reduces labor intensity, ensures neat and beautiful runway edges, avoids excessive friction and material spillage, and enhances paving quality and aesthetics.
Smart Images

Figure CN224930924U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic running track laying technology, and in particular to a trimming device for plastic running tracks. Background Technology
[0002] Plastic running tracks are sports field paving layers made primarily of polyurethane rubber and other materials, which are spread, compacted, and cured. They offer advantages such as high flatness, moderate elasticity, wear resistance, slip resistance, and strong weather resistance, and are currently widely used in school playgrounds, gymnasiums, and sports training facilities. In the existing plastic running track installation process, construction workers typically spread the mixed plastic material evenly on the base surface, then use scrapers and rollers to level and cure it. Because the edges of the track need to be tightly bonded to the base layer or surrounding boundaries, edge trimming is necessary during installation to ensure straight, neat edges and a natural transition to the base layer.
[0003] In existing technologies, edge trimming work mostly relies on manual hand-held scrapers or simple pusher tools, requiring construction workers to trim the track section by section along its edge. This method is labor-intensive, inefficient, and highly dependent on the skill level of the construction workers, easily leading to uneven edges, material spillage, or excessively deep scratches, thus affecting the overall performance and appearance of the track. Utility Model Content
[0004] In view of this, the purpose of this utility model is to propose an edge trimming device for plastic running tracks, so as to solve the problems of low efficiency, reliance on manual experience, and unstable edge trimming effect in the existing plastic running track laying process.
[0005] To achieve the above objectives, this utility model provides an edge trimming device for plastic running tracks, including a trolley body, a paving surface adaptation component, a ground adaptation component, and an edge trimming component; A surface adaptation component, located below the trolley body, is used to adapt the height of the trimming component to the surface of the track where the plastic material has already been laid. The ground adaptation component, located on one side of the pavement adaptation component, is used to adapt the height of the trimming component to the unpaved bottom surface. The edge trimming component, located in the middle of the pavement adaptation component and the ground adaptation component, is used to smooth and finish the edges of the plastic material on the plastic track during installation.
[0006] Preferably, the paving adaptation component includes a receiving block, which is fixedly installed at the bottom of the trolley body. A groove is provided in the middle of the receiving block, and a plurality of second springs are provided in the groove. One end of the second spring is fixed to the inner wall of the receiving block, and the other end of the second spring is fixedly installed with a housing. A rotating roller is rotatably installed below the housing, and a connecting rod is fixedly installed on one side of the rotating roller.
[0007] Preferably, the ground adaptation component includes an auxiliary wheel, which is rotatably mounted on the connecting rod on the side away from the rotating roller. A connecting ring is rotatably mounted on the connecting rod, and a limiting plate is rotatably mounted above the connecting ring. A telescopic rod is fixedly mounted on one side of the limiting plate, and a first spring is sleeved on the outer side of the telescopic rod. The two ends of the first spring are respectively fixed to the limiting plates at both ends of the telescopic rod. Another limiting plate is fixedly mounted on the other end of the telescopic rod, and the limiting plate is rotatably mounted to the side of the receiving block.
[0008] Preferably, the trimming assembly includes a scraper, which is fixedly installed below the connecting ring, and the scraper is an inclined arc-shaped plate-like part at a 30 to 60 degree angle to the receiving block.
[0009] Preferably, the scraper is inclined from the outside of the trolley body to the inside of the trolley body on the side facing the direction of travel of the trolley body.
[0010] Preferably, the groove and the housing are in sliding engagement, that is, the groove provides the housing with sliding space as well as limiting and guiding the sliding.
[0011] Preferably, the auxiliary wheel is located on one side of the scraper, the lowest point of the auxiliary wheel is at the same height as the lowest point of the scraper, and the inner surface of the scraper is provided with an anti-stick coating.
[0012] The beneficial effects of this utility model are: 1. This edge trimming equipment for plastic running tracks integrates a paving surface adaptation component, a ground adaptation component, and an edge trimming component into the trolley body. It can automatically complete the edge trimming and smoothing during the track laying process, reducing repeated manual trimming operations. This not only reduces labor intensity but also improves construction efficiency and edge trimming accuracy.
[0013] 2. The edge trimming equipment for this synthetic running track features a surface adaptation component and a ground adaptation component that adaptively adjust the height of the laid track surface and the unlaid base layer, respectively. Combined with the inclined, curved scraper of the edge trimming component, it achieves stable trimming of the track edges. This structure avoids excessive friction, scraper wear, and plastic material spillage during the trimming process, thus ensuring neat, aesthetically pleasing, and reliable track edges. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of part of the structure of this utility model; Figure 3 This is a schematic diagram of the adaptive component structure of this utility model; Figure 4 This utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle.
[0016] The diagram is marked as follows: 1. Cart body; 2. Receiving block; 3. Auxiliary wheel; 4. Connecting rod; 5. Outer shell; 6. Rotating roller; 7. Telescopic rod; 8. First spring; 9. Connecting ring; 10. Scraper; 11. Second spring; 12. Slide groove; 13. Limiting plate. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.
[0018] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0019] like Figures 1 to 4As shown, a trimming device for a plastic running track includes a trolley body 1, a paving surface adaptation component, a ground adaptation component, and a trimming component. By using the trolley body 1 as a carrier, the paving surface adaptation component, the ground adaptation component, and the trimming component are integrated into an integrated structure, which can complete edge trimming simultaneously during the track laying process, reduce manual operation steps, and improve construction efficiency and trimming accuracy.
[0020] Furthermore, such as Figures 1 to 4 As shown, the surface adaptation component, located below the trolley body 1, is used for the height adaptation of the trimming component on the already laid plastic track surface. It includes a receiving block 2, which is fixedly installed at the bottom of the trolley body 1. A groove 12 is formed in the middle of the receiving block 2, and multiple second springs 11 are installed within the groove 12. One end of each second spring 11 is fixed to the inner wall of the receiving block 2, and the other end is fixedly mounted to a housing 5. A rotating roller 6 is rotatably mounted below the housing 5, and a connecting rod 4 is fixedly mounted on one side of the rotating roller 6. The groove 12 and the housing 5 slide together, meaning the groove 12 provides sliding space, limiting position, and guiding force for the housing 5. The receiving block 2 and the groove 12 provide stable sliding guidance for the housing 5, allowing it to float flexibly with height changes. The second springs 11 act as buffers and self-adaptive components, enabling the rotating roller 6 to automatically adjust its height according to the undulations of the laid plastic track surface. To ensure the trimming assembly is always in a reasonable working position, preventing the scraper 10 from being too high or too low, the rotating roller 6 is rotated and supported below the outer shell 5, which can reduce the friction between the equipment and the track surface, improve the stability and smoothness of pushing. One end of the connecting rod 4 is fixed to the rotating roller 6, which not only realizes the linkage with the ground adaptation component, but also enhances the adaptability and structural stability of the device through the overall transmission structure. During the use of this trimming equipment, when the trolley body 1 moves forward, the rotating roller 6 first contacts the laid plastic track surface. If there are height fluctuations on the track surface, the rotating roller 6 rises and falls accordingly, and the outer shell 5 slides up and down in the slide groove 12. The second spring 11 provides buffering and return force, so that the outer shell 5 always fits the track surface. Through the rotation of the rotating roller 6, the frictional resistance is reduced, ensuring the smooth movement of the trolley body 1. The connecting rod 4 moves with the rotating roller 6, and at the same time transmits the height change to the ground adaptation component, ensuring that the overall trimming height is adaptive.
[0021] Furthermore, such as Figures 1 to 4As shown, the ground adaptation component, located on one side of the pavement adaptation component, is used for height self-adaptation of the trimming component on the unpaved bottom surface. It includes an auxiliary wheel 3, rotatably mounted on a connecting rod 4 away from the rotating roller 6. A connecting ring 9 is rotatably mounted on the connecting rod 4, and a limiting plate 13 is rotatably mounted above the connecting ring 9. A telescopic rod 7 is fixedly mounted on one side of the limiting plate 13, and a first spring 8 is sleeved on the outer side of the telescopic rod 7. Both ends of the first spring 8 are fixed to the limiting plates 13 at both ends of the telescopic rod 7. Another limiting plate 13 is fixedly mounted on the other end of the telescopic rod 7. The limiting plate 13 is rotatably mounted to the side of the receiving block 2. The auxiliary wheel 3, mounted on the connecting rod 4 and located on the unpaved bottom surface, enables height self-adaptation of the base layer, maintaining the overall balance of the trimming component. The rotatable mounting of the connecting ring 9 and the limiting plate 13 allows the scraper 10 to have a certain swing and angle adjustment capability, improving the fit during edge trimming. The telescopic rod 7, in conjunction with the first spring 8, achieves flexible telescopic movement, providing elastic compensation for uneven ground conditions and preventing the scraper 10 from experiencing edge breakage due to uneven bottom surfaces. The two ends of the limiting plate 13 are connected to the telescopic rod 7 and the receiving block 2 respectively, forming a reliable limiting and rotational support. This ensures that the entire mechanism maintains stability while ensuring flexibility, preventing the scraper 10 from failing due to excessive shaking. During use, when the trolley body 1 approaches the edge of the unpaved track, the auxiliary wheel 3 contacts the base surface. If there is a height difference in the base surface, the auxiliary wheel 3 rotates with the undulations of the ground, causing the connecting rod 4 and connecting ring 9 to change position. The connecting ring 9 and the limiting plate 13, through rotational support, cause the scraper 10 to swing at a small angle to adapt to different ground slopes. The telescopic rod 7 achieves elastic telescopic movement under the action of the first spring 8, providing height compensation for the scraper 10. Under the restriction of the limiting plate 13, the entire mechanism can maintain flexible adaptation while preventing the scraper 10 from shaking significantly.
[0022] Furthermore, such as Figures 2 to 4As shown, the edge trimming component, located in the middle of the pavement adaptation component and the ground adaptation component, is used to smooth and even out the edges of the plastic material on the surface of the track during installation. It includes a scraper 10, which is fixedly installed below the connecting ring 9. The scraper 10 is an inclined arc-shaped plate-like part at a 30-60 degree angle to the receiving block 2. The scraper 10 is inclined from the outside to the inside of the trolley body 1 on the side facing the direction of travel of the trolley body 1. An auxiliary wheel 3 is located on one side of the scraper 10, and the lowest point of the auxiliary wheel 3 is at the same height as the lowest point of the scraper 10. The inner surface of the scraper 10 has an anti-stick coating, such as a fluorinated material. The scraper 10's inclined arc-shaped plate structure allows it to naturally push, smooth, and evenly transition the edges of the plastic material to the top surface of the track as the trolley body 1 moves forward, forming a neat boundary. The scraper 10 and the lowest point of the auxiliary wheel 3 are at the same height, ensuring... When scraping the edges, the scraper adheres tightly to the base layer and the edge of the track, leaving no gaps or excess plastic accumulation. It also avoids excessive friction between the scraper 10 and the ground, preventing wear. The inclined angle of the scraper 10 guides excess material inwards, preventing plastic from overflowing outside the track. This results in a neat and secure edge finish. During use, as the trolley body 1 moves forward, the scraper 10 contacts the edge material of the plastic track. The inclined scraper 10 guides excess plastic material from the outside inwards and simultaneously compacts it. The scraper 10 is at the same height as the bottom of the auxiliary wheel 3, ensuring close contact with the base layer and edge while avoiding hard friction between the scraper 10 and the ground. The edge material is gradually pushed and smoothed, transitioning to the track surface, forming a neat and secure edge finish. This also prevents plastic material from overflowing outside the track, improving the laying quality and aesthetics.
[0023] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.
[0024] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A trimming device for plastic running tracks, characterized in that, include: The trolley body (1), the paving surface adaptation component, the ground adaptation component, and the trimming component; A surface adaptation component is located below the trolley body (1) and is used to adapt the height of the trimming component to the surface of the track that has been laid with plastic material. The ground adaptation component, located on one side of the pavement adaptation component, is used to adapt the height of the trimming component to the unpaved bottom surface. The edge trimming component, located in the middle of the pavement adaptation component and the ground adaptation component, is used to smooth and finish the edges of the plastic material on the plastic track during installation.
2. The edge trimming equipment for a plastic running track according to claim 1, characterized in that, The paving adaptation component includes a receiving block (2), which is fixedly installed at the bottom of the trolley body (1). A groove (12) is provided in the middle of the receiving block (2). A plurality of second springs (11) are provided in the groove (12). One end of the second spring (11) is fixed to the inner wall of the receiving block (2). The other end of the second spring (11) is fixedly installed with a housing (5). A rotating roller (6) is rotatably installed below the housing (5). A connecting rod (4) is fixedly installed on one side of the rotating roller (6).
3. The edge trimming equipment for a plastic running track according to claim 2, characterized in that, The ground adaptation component includes an auxiliary wheel (3), which is rotatably mounted on the connecting rod (4) away from the rotating roller (6). A connecting ring (9) is rotatably mounted on the connecting rod (4). A limiting plate (13) is rotatably mounted above the connecting ring (9). A telescopic rod (7) is fixedly mounted on one side of the limiting plate (13). A first spring (8) is sleeved on the outside of the telescopic rod (7). The two ends of the first spring (8) are respectively fixed to the limiting plates (13) at both ends of the telescopic rod (7). Another limiting plate (13) is fixedly mounted on the other end of the telescopic rod (7). The limiting plate (13) is rotatably mounted on the side of the receiving block (2).
4. The edge trimming equipment for a plastic running track according to claim 3, characterized in that, The trimming assembly includes a scraper (10), which is fixedly installed below the connecting ring (9). The scraper (10) is an inclined arc-shaped plate-shaped part that forms an angle of thirty to sixty degrees with the receiving block (2).
5. The edge trimming equipment for a plastic running track according to claim 4, characterized in that, The scraper (10) is inclined from the outside of the trolley body (1) to the inside of the trolley body (1) on the side facing the forward direction of the trolley body (1).
6. The edge trimming equipment for a plastic running track according to claim 4, characterized in that, The slide groove (12) and the outer shell (5) are in sliding engagement, that is, the slide groove (12) provides the outer shell (5) with sliding space, as well as limiting and sliding guidance.
7. The edge trimming equipment for a plastic running track according to claim 4, characterized in that, The auxiliary wheel (3) is located on one side of the scraper (10), and the lowest point of the auxiliary wheel (3) is at the same height as the lowest point of the scraper (10). The inner surface of the scraper (10) is provided with an anti-stick coating.
