Prefabricated plastic track structure
By setting a combination of semi-circular clips and concave connecting strips on the prefabricated plastic running track, the problems of cracking and warping at the splicing points are solved, and a stable connection is achieved under temperature changes, thus improving the stability of the running track in use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-03-03
AI Technical Summary
Existing prefabricated plastic running tracks are prone to cracking and warping at the joints, especially during weather changes, where insufficient bonding strength leads to poor stability.
The design employs a combination of semi-circular clips and concave connecting strips. The semi-circular clips are symmetrically arranged on both sides of the main track body, while the concave connecting strips are fixed to the bottom of the track foundation with glue and snapped together with the semi-circular clips. The material is the same as the bottom layer to allow for synchronous shrinkage and provide additional clamping force.
It effectively reduces cracking and warping at the long side joints of the runway, improving the stability of the runway in use, especially maintaining the firmness of the connection when the temperature changes.
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Figure CN223963783U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of prefabricated plastic running tracks, specifically a prefabricated plastic running track structure. Background Technology
[0002] Precast plastic running tracks are a type of running track surface material made primarily of plastic. Precast plastic running tracks are generally divided into three layers according to their function: a wear-resistant and flexible surface layer, a pressure-absorbing bottom layer, and an adhesive layer between the precast plastic running track roll and the running track base.
[0003] The main function of the surface layer is to increase the friction coefficient between the athlete's foot and the ground during exercise and to transmit pressure. Generally, the surface layer is made of high-density plastic roll material rolled into a specific fine anti-dizziness pattern.
[0004] The main function of the bottom layer is to absorb and buffer the pressure transmitted from the surface layer by relying on its own elastic properties. It is usually combined with inert gas micro-foaming technology and then rolled to form a special three-dimensional mesh structure.
[0005] There are two types of foundations for sports fields: asphalt concrete foundations and cement concrete foundations. Precast synthetic running tracks are made by bonding precast synthetic running track rolls to the track foundation using polyurethane adhesive.
[0006] Existing prefabricated plastic running tracks are fixed by adhesive bonding alone. After a period of use, cracks and warping are prone to occur at the long side joints of the prefabricated plastic running tracks. Based on this, in order to further enhance the connection strength at the joints of prefabricated plastic running tracks, a prefabricated plastic running track structure is provided. Utility Model Content
[0007] The purpose of this utility model is to provide a prefabricated plastic running track structure in order to solve the problems mentioned above.
[0008] To achieve the above objectives, this utility model provides the following technical solution: a prefabricated plastic running track structure, comprising a prefabricated plastic running track, wherein the prefabricated plastic running track is composed of a running track body and semi-circular retaining strips, the semi-circular retaining strips being symmetrically formed on both sides of the running track body, and splicing components being provided at the joint of the long sides of the two running track bodies, the splicing components cooperating with the semi-circular retaining strips to strengthen the joint connection of the long sides of the two running track bodies;
[0009] The splicing assembly includes a concave connecting strip, which is glued to the track base and located below the splicing point of the two track bodies. Two semi-circular clips on the two track bodies engage with the inner side of the concave connecting strip to fill the inner wall of the concave connecting strip. The material of the concave connecting strip is the same as the pressure buffer bottom layer material of the track body. When the track body shrinks due to weather conditions, the concave connecting strip shrinks synchronously to achieve the pressing operation of the long sides of the two track bodies.
[0010] As a further improvement of this utility model: the bottom horizontal height of the semi-circular clip is higher than the bottom horizontal height of the main body of the runway, and the splicing height of the semi-circular clip and the concave connecting strip matches the height of the main body of the runway.
[0011] As a further improvement of this utility model: the bottom of the concave connecting strip is provided with a lower adhesive outlet, and multiple lower adhesive outlets are provided, which are evenly distributed along the long side of the concave connecting strip.
[0012] As a further improvement of this utility model: the concave connecting strip has side-penetrating adhesive openings on both sides, and there are multiple side-penetrating adhesive openings, which are evenly distributed along the long side of the concave connecting strip.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] By setting semi-circular clips and splicing components, the long sides of two prefabricated plastic running tracks can be quickly spliced together. When the prefabricated plastic running track shrinks due to the decrease in weather temperature, the concave connecting strip shrinks simultaneously and presses the two semi-circular clips together. This overcomes the tendency of the two long sides of the prefabricated plastic running track to move away from each other, which can effectively reduce the cracking and warping at the splicing of the long sides of the prefabricated plastic running track and improve the stability of the prefabricated plastic running track in use. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the bottom structure of this utility model;
[0017] Figure 3 This is a schematic diagram showing the disassembly of the splicing components and the prefabricated plastic running track of this utility model.
[0018] In the diagram: 1. Precast plastic running track; 101. Main body of the running track; 102. Semi-circular retaining strip; 2. Splicing components; 201. Concave connecting strip; 202. Lower adhesive opening; 203. Side adhesive opening. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Please see Figures 1-3 In this embodiment of the utility model, a prefabricated plastic running track structure includes a prefabricated plastic running track 1. The prefabricated plastic running track 1 is composed of a running track body 101 and a semi-circular retaining strip 102. The semi-circular retaining strip 102 is symmetrically formed on both sides of the running track body 101. A splicing component 2 is provided at the long side splicing point of the two running track bodies 101. The splicing component 2 and the semi-circular retaining strip 102 cooperate to strengthen the splicing connection force of the long side splicing of the two running track bodies 101.
[0021] The splicing component 2 includes a concave connecting strip 201, which is fixed to the track base by adhesive and located below the splicing point of the two track bodies 101. Two semi-circular clips 102 on the two track bodies 101 are engaged with the inner side of the concave connecting strip 201 to fill the inner wall of the concave connecting strip 201. The material of the concave connecting strip 201 is the same as the pressure buffer bottom layer material of the track body 101. When the track body 101 shrinks due to weather conditions, the concave connecting strip 201 shrinks synchronously to achieve the pressing operation of the long side of the two track bodies 101.
[0022] In this embodiment: the splicing operation of this prefabricated plastic running track 1 is as follows:
[0023] The first prefabricated plastic track 1 can be laid according to the set path. During this process, glue needs to be applied to the track base to bond and fix the track body 101 to the track base.
[0024] During the laying of the first precast plastic track 1, a concave connecting strip 201 is simultaneously connected to the semi-circular clip 102 at the splicing surface of the first precast plastic track 1 (it should be noted that during this process, some glue is filled inside the concave connecting strip 201 to bond and fix the semi-circular clip 102 to the concave connecting strip 201), and this concave connecting strip 201 is simultaneously bonded and fixed to the track foundation;
[0025] When the first prefabricated plastic track 1 is laid, and the second prefabricated plastic track 1 is laid, some glue is filled into the other half of the concave connecting strip 201. Then, while the second prefabricated plastic track 1 is laid on the track base, the semi-circular clip 102 on the second prefabricated plastic track 1 is pressed into the other half of the concave connecting strip 201. The semi-circular clip 102 on the second prefabricated plastic track 1 will be bonded and fixed with the semi-circular clip 102 on the first prefabricated plastic track 1 and the concave connecting strip 201. In this way, the splicing and fixing of the two prefabricated plastic tracks 1 is completed. (It should be noted that after the laying is completed, a heavy object is pressed on the upper surface of the splicing of the two prefabricated plastic tracks 1. After the glue solidifies, the heavy object can be removed.)
[0026] The concave connecting strip 201 enables the rapid splicing of the long sides of the two prefabricated plastic running tracks 1. During later use, when the prefabricated plastic running tracks 1 shrink due to the decrease in weather temperature, the concave connecting strip 201 shrinks synchronously. The shrinking concave connecting strip 201 will press the two semi-circular clips 102 on the two prefabricated plastic running tracks 1 together to overcome the tendency of the long sides of the two prefabricated plastic running tracks 1 to move away from each other. This can effectively reduce the cracking and warping at the splicing of the long sides of the prefabricated plastic running tracks 1 and improve the stability of the prefabricated plastic running tracks 1 in use.
[0027] Please refer to this carefully. Figures 1-2 The bottom horizontal height of the semi-circular clip 102 is higher than the bottom horizontal height of the runway body 101, and the splicing height of the semi-circular clip 102 and the concave connecting strip 201 matches the height of the runway body 101.
[0028] In this embodiment: This structure can ensure the flatness of the prefabricated plastic track 1 and ensure that the surface of the prefabricated plastic track 1 is flat and without protrusions.
[0029] Please refer to this carefully. Figures 2-3 The bottom of the concave connecting strip 201 is provided with a lower adhesive outlet 202. Multiple lower adhesive outlets 202 are provided and are evenly distributed along the long side of the concave connecting strip 201.
[0030] The concave connecting strip 201 has side-penetrating adhesive openings 203 on both sides. Multiple side-penetrating adhesive openings 203 are provided and are evenly distributed along the long side of the concave connecting strip 201.
[0031] In this embodiment: when splicing the semi-circular clip 102 and the concave connecting strip 201, glue is filled into the concave connecting strip 201. The glue can contact the track foundation through the lower glue port 202 and the track body 101 through the side glue port 203. Thus, after the glue solidifies, the semi-circular clip 102 is fixed to the track foundation through the glue passing through the lower glue port 202, and at the same time, the semi-circular clip 102 is fixed to the track body 101 through the glue passing through the side glue port 203. This further improves the connection between the semi-circular clip 102 and the concave connecting strip 201 and prevents the semi-circular clip 102 from detaching from the concave connecting strip 201.
[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A prefabricated plastic running track structure, comprising a prefabricated plastic running track (1), characterized in that, The prefabricated plastic track (1) consists of a track body (101) and a semi-circular retaining strip (102). The semi-circular retaining strip (102) is symmetrically formed on both sides of the track body (101). A splicing component (2) is provided at the joint of the long sides of the two track bodies (101). The splicing component (2) works with the semi-circular retaining strip (102) to strengthen the splicing connection of the long sides of the two track bodies (101). The splicing component (2) includes a concave connecting strip (201), which is fixed to the track base by adhesive and located below the splicing point of the two track bodies (101). Two semi-circular clips (102) on the two track bodies (101) are engaged with the inner side of the concave connecting strip (201) to fill the inner wall of the concave connecting strip (201). The material of the concave connecting strip (201) is the same as the pressure buffer bottom layer material of the track body (101). When the track body (101) shrinks due to weather conditions, the concave connecting strip (201) shrinks synchronously to achieve the pressing operation of the long side of the two track bodies (101).
2. The prefabricated plastic running track structure according to claim 1, characterized in that, The bottom horizontal height of the semi-circular clip (102) is higher than the bottom horizontal height of the main body of the runway (101), and the splicing height of the semi-circular clip (102) and the concave connecting strip (201) matches the height of the main body of the runway (101).
3. The prefabricated plastic running track structure according to claim 1, characterized in that, The bottom of the concave connecting strip (201) is provided with a lower adhesive port (202), and multiple lower adhesive ports (202) are provided, which are evenly distributed along the long side of the concave connecting strip (201).
4. The prefabricated plastic running track structure according to claim 1, characterized in that, The concave connecting strip (201) has side-penetrating adhesive openings (203) on both sides. Multiple side-penetrating adhesive openings (203) are provided and are evenly distributed along the long side of the concave connecting strip (201).