CN113417192B

CN113417192B - Plastic track warped edge repairing method

Info

Publication number: CN113417192B
Application number: CN202110510924.6A
Authority: CN
Inventors: 黄雄伟
Original assignee: Hunan U Crown Sports Material Co ltd
Current assignee: Hunan U Crown Sports Material Co ltd
Priority date: 2021-05-11
Filing date: 2021-05-11
Publication date: 2022-09-02
Anticipated expiration: 2041-05-11
Also published as: CN113417192A

Abstract

The invention discloses a plastic runway edge warping repairing method, which belongs to the field of plastic runways, and solves the edge warping problem by removing the edge warping of a runway edge and creatively adding a repairing layer, wherein waterproof glue is filled in the repairing layer, a power extrusion cavity is used for extruding heat conduction oil by using the treading action of a human foot, and then an elastic sealing film is stretched to push a glue discharging piece to extrude the waterproof glue, so that the degummed runway edge is repaired by glue.

Description

Plastic track warped edge repairing method

Technical Field

The invention relates to the field of plastic runways, in particular to a method for repairing a raised edge of a plastic runway.

Background

The plastic track is also named as all-weather track for track and field sports and consists of polyurethane prepolymer, mixed polyether, waste tyre rubber, EPDM rubber grain or PU grain, pigment, assistant and stuffing. The plastic track has the characteristics of good flatness, high compressive strength, proper hardness and elasticity and stable physical performance, is beneficial to the exertion of the speed and the technology of athletes, effectively improves the sports performance and reduces the tumble injury rate. The plastic track is made of materials such as polyurethane rubber, has certain elasticity and color, has certain ultraviolet resistance and aging resistance, and is the best all-weather outdoor sports ground floor material internationally recognized.

Plastic runways have many advantages, such as all-weather use: the quality of the product can be maintained at a high level in any season and temperature difference, the product can be used immediately after rain, the utilization time is increased, the utilization rate of the field is improved, the product has moderate elasticity and rebound force, the consumption of physical strength can be reduced, and the competition result is improved; impact force absorption: the foot impact force is properly absorbed, the sports injury is reduced, and the foot impact training device is suitable for long-term practice and competition; weather resistance: the color of the paint can not be faded, pulverized or softened due to the pollution of ultraviolet rays, ozone and acid rain, and the bright color of the paint can be kept for a long time; wear resistance: the wear resistance is less than 2.5 percent, and the requirements of long-term and high use frequency of schools at all levels are met. However, the plastic track has many defects, for example, after the plastic track is used for a period of time, the plastic track is easy to shrink and warp after experiencing the difference of sun-rain temperatures, and some plastic tracks can be lifted up like a carpet, thereby affecting the normal use.

The reason of the edge warping is mainly caused by degumming after the soaking of rainwater, most of the existing processes for repairing the edge warping are realized by coating glue again for secondary adhesion, although the process operation is simple, the next time of rainwater causes the problem of degumming, and the repeated edge warping repair work actually increases the working strength of maintenance personnel.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a method for repairing the raised edge of a plastic runway, which removes the edge of the raised edge of the runway by shoveling, the repairing layer is creatively added to solve the problem of edge warping, waterproof glue is filled in the repairing layer, the power extrusion cavity is enabled to extrude heat conduction oil by utilizing the stepping action of a human foot, and then the elastic sealing film is stretched to push the glue discharging piece to extrude the waterproof glue, thereby repairing the degummed runway edge, only needing one construction in the earlier stage to save the trouble of repeated glue repair in the following, releasing maintenance personnel from heavy repair work, expanding the thermal expansion ball by using the high temperature of the sun exposure to extrude the waterproof glue, thereby realize the effect that the oneself strengthens the bonding, effectively avoid sticking up the problem on limit to take place once more, played fine guard action to the plastic course.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A plastic track warped edge repairing method comprises the following steps:

s1, cutting off the raised runway edge by using a cutting knife, wherein the cutting width is 10-15 cm, and the cutting edge is inclined to the outer side so that the cutting edge has a certain gradient during cutting;

s2, cleaning the ground exposed after cutting, keeping the ground dry to avoid water residue, coating a layer of super glue on the cut, and coating a layer of base coat on the exposed ground;

and S3, adhering the repairing layer on the bottom coating, tightly connecting the repairing layer with the cut-out, compacting, solidifying and fixing, and finally paving a particle surface layer above the repairing layer. The raised edge problem is solved by removing the raised edge of the runway and creatively adding a repairing layer.

Further, the slope of the cutting opening in the step S1 is 30-45 °, the oblique direction of the cutting opening extends from the plastic track to the repair layer, and the oblique cutting opening can increase the area of the connecting surface to improve the bonding stability.

Further, the repairing layer in the step S3 includes an inner lining body and an outer protective body, the outer surface of the outer protective body is an arc surface, when a person enters the plastic track, the shoe can rub the edge inevitably, the arc surface increases the smoothness of the track edge, the track is attractive and can prevent the edge from being rubbed up, and the upper surface of the inner lining body is lower than the horizontal plane where the highest point of the outer protective body is located, so that a surface layer can be laid in a drop zone formed between the inner lining body and the outer protective body to keep the overall consistency of the plastic track.

Furthermore, a plurality of bonding reinforcing pieces are fixedly embedded in the inner wall of the inner lining body, the upper ends of the bonding reinforcing pieces extend into the surface layer, each bonding reinforcing piece comprises a connecting pile, the upper end of each connecting pile is fixedly connected with a traction ball, the lower end of each connecting pile extends downwards to form branches, the branches are distributed in a tree root-shaped structure in a dispersing mode, and the bonding reinforcing pieces are located on the surface layer and the inner lining body, so that the bonding strength between the surface layer and the inner lining body can be enhanced, and the problem that the surface layer falls off is effectively prevented.

Further, the inner wall of interior bushing body is seted up there is power extrusion chamber, and is filled with the conduction oil in the power extrusion chamber, and the conduction oil is heated and expands, and the conduction oil expands and causes the elasticity seal membrane to stretch when the sun insolate for the row of glue spare extrudes the marine glue, realizes mending glue under high temperature weather, effectively prevents runway edge warp, the bubbly problem of runway under the insolate weather and appears, the internal diameter in power extrusion chamber is reduced by interior bushing body to the outer protective body direction gradually, and the power extrusion chamber can extrude the conduction oil to the outer protective body direction when stepping on the interior bushing body for the foot like this, thereby lets the marine glue can be by smooth extrusion come out.

Further, the inner wall of the outer protection body is provided with a first glue storage cavity communicated with the power extrusion cavity, and the first glue storage cavity is filled with waterproof glue, the lower end of the first glue storage cavity is communicated with a plurality of glue outlet channels, the first glue storage cavity is close to an elastic sealing film which is fixedly connected with the inner wall of the communicated part, a glue discharging part is fixedly connected with the outer side wall of the elastic sealing film, heat conducting oil is extruded into the outer protection body from the inner lining body, the elastic sealing film is stretched to push the glue discharging part, and the glue discharging part is extruded to discharge the waterproof glue.

Further, the binder removal spare includes two and first storage chamber inner wall sliding connection's binder removal balls, two connect through inelastic connecting rod between the binder removal ball, store up the waterproof glue that the back second was glued in the chamber and can fall down for waterproof glue in first storage chamber is extruded, consequently the binder removal spare adopts this structure, like this when first binder removal ball stores up gluey chamber through the second, the second stores up gluey intracavity portion waterproof glue can fall into between two binder removal balls, and then by a gluey opening passageway discharge.

Further, the inner wall of the outer protective body is further provided with a second glue storage cavity communicated with the first glue storage cavity, the second glue storage cavity is filled with waterproof glue, a thermal expansion ball is fixedly connected to the inner wall of the upper end of the second glue storage cavity, a lower end of the thermal expansion ball is fixedly connected with a squeezing plate in sliding connection with the inner wall of the second glue storage cavity, a heat conducting piece is inlaid on the thermal expansion ball and extends to the outer surface of the outer protective body, and the heat conducting piece transfers heat to the thermal expansion ball to enable the thermal expansion ball to expand and enlarge in the second glue storage cavity in the weather exposed to the sun, so that the waterproof glue in the second glue storage cavity is squeezed into the first glue storage cavity, the self-reinforcing bonding effect is achieved, and the problems of edge warping, foaming and the like caused by exposure to the sun can be effectively prevented.

Further, thermal-insulated membrane has been laid to the surface of the outer protective body, and thermal-insulated heat can be insulated from heat to thermal-insulated membrane, effectively prevents to insolate and leads to sticking up the limit and take place, scribbles fluorescent material with thermal-insulated membrane and thermal-insulated membrane's skin, and thermal-insulated membrane sends fluorescence in night, has outlined the profile of plastic course, has not only added the aesthetic property of plastic course, also has noticed safety under the foot for the people's suggestion of motion at night in addition.

Furthermore, the inner liner and the outer protective body are of an integrated structure, and both the inner liner and the outer protective body are made of elastic materials.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) this scheme is removed through the runway edge shovel that will stick up the limit, and the limit problem of sticking up is solved to creative joining restoration layer, it has the marine glue to fill in the restoration layer, it makes power extrusion chamber crowd the conduction oil to utilize the foot to step on the effect, and then let the elasticity seal membrane stretch to push away to arrange the gluey piece and extrude the marine glue, thereby carry out the mending to the runway edge after coming unstuck, only need once construction in earlier stage just can save follow-up trouble of mending the glue repeatedly, release maintainer from heavy repair work, it still utilizes the high temperature that the sun insolateed to make the thermal expansion ball expand, in order to extrude the marine glue, thereby realize the effect that the oneself strengthens the bonding, effectively avoid sticking up the problem of limit and take place once more, played fine guard action to the plastic course.

(2) In the step S1, the slope of the cutting opening is 30-45 degrees, the inclined direction of the cutting opening is that the plastic track extends towards the repairing layer, and the inclined cutting opening can increase the area of the connecting surface to improve the bonding stability.

(3) The repairing layer in the step S3 comprises an inner lining body and an outer protecting body, the outer surface of the outer protecting body is an arc surface, when a person enters the plastic track, the shoe can be rubbed to the edge inevitably, the arc surface increases the smoothness of the track edge, the appearance is attractive, the edge can be prevented from being rubbed, the upper surface of the inner lining body is lower than the horizontal plane where the highest point of the outer protecting body is located, and therefore a surface layer can be paved in a falling difference area formed between the inner lining body and the outer protecting body, and the overall consistency of the plastic track is kept.

(4) The inner wall of the inner lining body is fixedly embedded with a plurality of bonding reinforcing pieces, the upper ends of the bonding reinforcing pieces extend into the surface layer, the bonding reinforcing pieces comprise connecting piles, the upper ends of the connecting piles are fixedly connected with traction balls, the lower ends of the connecting piles extend downwards to form branches, the branches are distributed in a tree root-shaped structure in a dispersed mode, and the bonding reinforcing pieces are located in the surface layer and the inner lining body, so that the bonding strength of the surface layer and the inner lining body can be enhanced, and the problem that the surface layer falls off is effectively prevented.

(5) The inner wall in interior lining body is seted up there is power extrusion chamber, and it has the conduction oil to fill in the power extrusion chamber, the conduction oil is heated and expands, the conduction oil expansion causes the elasticity seal membrane to stretch when the sun insolate, make row's rubber spare displacement waterproof glue, the realization mends the glue under high temperature weather, runway sticks up the limit under the effective weather that prevents to insolate, the bubbly problem appears, the internal diameter in power extrusion chamber is reduced by the outside protective body direction of interior lining body gradually, power extrusion chamber can extrude the outside protective body direction of conduction oil when stepping on interior lining body like this, thereby let the waterproof glue can be come out by smooth extrusion.

(6) The inner wall of the outer protection body is provided with the first storage glue cavity that communicates with the power extrusion cavity, and first storage glue cavity intussuseption is filled with the waterproof glue, the lower extreme intercommunication in first storage glue cavity has a plurality of play to glue the opening passageways, the inner wall fixed connection that first storage glue cavity is close to intercommunication department has the elasticity seal membrane, and the lateral wall fixedly connected with of elasticity seal membrane arranges the piece of gluing, the conduction oil is extruded in the outer protection body from interior bushing body, make the elasticity seal membrane stretch to promote to arrange the piece of gluing, arrange the piece of gluing and then arrange the extrusion waterproof glue.

(7) The glue discharging piece comprises two squeezing balls which are connected with the inner wall of the first glue storage cavity in a sliding mode, the two squeezing balls are connected through an inelastic connecting rod, the second glue storage cavity can be filled with the waterproof glue after the waterproof glue in the first glue storage cavity is extruded, the glue discharging piece adopts the structure, and therefore when the first squeezing ball passes through the second glue storage cavity, the waterproof glue in the second glue storage cavity can fall into the space between the two squeezing balls and is discharged through the glue outlet opening channel.

(8) The inner wall of the outer protective body is also provided with a second glue storage cavity communicated with the first glue storage cavity, the second glue storage cavity is also filled with waterproof glue, the upper end inner wall fixedly connected with thermal expansion balls of the second glue storage cavity, the lower end fixedly connected with of the thermal expansion balls and the second glue storage cavity inner wall sliding connection extrusion plate are inlaid with a heat conducting piece on the thermal expansion balls, the heat conducting piece extends to the outer surface of the outer protective body, under the sun exposure weather, the heat conducting piece transfers heat to the thermal expansion balls to enable the thermal expansion balls to expand and grow, and then the waterproof glue in the second glue storage cavity is extruded into the first glue storage cavity, so that the self-reinforcing bonding effect is realized, the edge warping caused by exposure can be effectively prevented, and the foaming problem is solved.

(9) The surface of the outer protective body is paved with a heat insulation film, the heat insulation film can insulate heat, the exposure is effectively prevented from leading to the occurrence of edge warping, the outer layer of the heat insulation film and the heat insulation film is coated with a fluorescent material, the heat insulation film emits fluorescence at night, the outline of the plastic track is outlined, the attractiveness of the plastic track is increased, and the safety under the feet is brought to the prompt of people moving at night.

Drawings

FIG. 1 is a flow chart of a repair method of the present invention;

FIG. 2 is a schematic view of the present invention after repair is complete;

FIG. 3 is a schematic cross-sectional view of FIG. 2;

FIG. 4 is a schematic front view of a repair layer according to the present invention;

FIG. 5 is a schematic cross-sectional view of a repair layer of the present invention;

fig. 6 is a schematic view of a repairing layer glue filling state of the invention.

The reference numbers in the figures illustrate:

1 inner lining body, 101 bonding reinforcing parts, 102 power extrusion cavity, 2 outer protective body, 201 heat insulation film, 202 first glue storage cavity, 203 glue outlet opening channel, 204 elastic sealing film, 205 glue discharging parts, 206 second glue storage cavity, 207 heat conduction parts and 208 heat expansion ball.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

referring to fig. 1-6, a method for repairing a raised edge of a plastic track, referring to fig. 1-2, comprises the following steps:

s1, cutting off the raised runway edge by using a cutting knife, wherein the cutting-off width is 10-15 cm, and the cutting-off opening is inclined to the outer side to have a certain gradient during cutting-off;

Referring to fig. 3-4, in the step S1, the slope of the resection port is 30-45 °, the resection port is inclined in a direction that the plastic track extends toward the repair layer, the inclined resection port can increase the area of the connection surface to improve the bonding stability, the repair layer in the step S3 includes an inner liner 1 and an outer protector 2, the inner liner 1 and the outer protector 2 are of an integrated structure, the inner liner 1 and the outer protector 2 are made of elastic materials, the elasticity of the inner liner 1 and the outer protector 2 is equivalent to that of the plastic track, so as to make the edge of the plastic track have a certain elasticity to avoid being too hard and easily injured, the outer surface of the outer protector 2 is a circular arc surface, when a person enters the plastic track, the shoe is difficult to rub the edge, the circular arc surface increases the smoothness of the track edge, not only is beautiful, but also can prevent the edge from being rubbed, and the upper surface of the inner liner 1 is lower than the highest point level of the outer protector 2, in this way, a surface layer can be laid in the drop zone formed between the lining body 1 and the outer protective body 2, in order to maintain the overall consistency of the plastic track.

Referring to fig. 5, a plurality of bonding reinforcements 101 are fixedly embedded in the inner wall of the inner liner 1, the upper ends of the bonding reinforcements 101 extend into the surface layer, the bonding reinforcements 101 include connecting piles, the upper ends of the connecting piles are fixedly connected with drag balls, the lower ends of the connecting piles extend downward to form branches, the branches are distributed in a tree root-shaped structure, and the bonding reinforcements 101 are located in the surface layer and the inner liner 1, so that the bonding strength between the surface layer and the inner liner 1 can be enhanced, and the surface layer falling problem can be effectively prevented.

Referring to fig. 5, a power extrusion cavity 102 is formed in the inner wall of the inner liner 1, heat conducting oil is filled in the power extrusion cavity 102, the heat conducting oil is heated and expanded, when the sun is exposed to the sun, the heat conducting oil expands to expand an elastic sealing film 204, so that a glue discharging member 205 discharges waterproof glue, glue supplement is realized in high-temperature weather, the problems of edge warping and foaming of a runway in the exposure weather are effectively prevented, the inner diameter of the power extrusion cavity 102 is gradually reduced from the inner liner 1 to the outer protector 2, so that the power extrusion cavity 102 can extrude the heat conducting oil to the outer protector 2 when a foot steps on the inner liner 1, and the waterproof glue can be smoothly extruded.

Referring to fig. 6, a first glue storage cavity 202 communicated with the power extrusion cavity 102 is formed in an inner wall of the outer protection body 2, waterproof glue is filled in the first glue storage cavity 202, a plurality of glue outlet opening channels 203 are communicated with a lower end of the first glue storage cavity 202, an elastic sealing film 204 is fixedly connected to an inner wall of the first glue storage cavity 202 near the communication position and is made of a material with good elasticity, preferably silica gel, a glue discharging member 205 is fixedly connected to an outer side wall of the elastic sealing film 204, heat conducting oil is extruded into the outer protection body 2 from the inner lining body 1, so that the elastic sealing film 204 stretches to push the glue discharging member 205, the glue discharging member 205 further discharges the waterproof glue, the glue discharging member 205 comprises two squeezing balls slidably connected with the inner wall of the first glue storage cavity 202, the two squeezing balls are connected through an inelastic connecting rod, in order that the waterproof glue in the second glue storage cavity 206 can fall after the waterproof glue in the first glue storage cavity 202 is squeezed, therefore, the glue discharging member 205 adopts such a structure, so that when the first squeeze ball passes through the second glue storage cavity 206, the waterproof glue inside the second glue storage cavity 206 can fall between the two squeeze balls and then be discharged from the glue outlet opening channel 203.

Referring to fig. 6, the inner wall of the outer protection body 2 is further provided with a second glue storage cavity 206 communicated with the first glue storage cavity 202, the second glue storage cavity 206 is also filled with waterproof glue, the inner wall of the upper end of the second glue storage cavity 206 is fixedly connected with a thermal expansion ball 208, the lower end of the thermal expansion ball 208 is fixedly connected with a squeezing plate in sliding connection with the inner wall of the second glue storage cavity 206, a heat conducting member 207 is embedded in the thermal expansion ball 208, and the heat conducting member 207 extends to the outer surface of the outer protection body 2.

Referring to fig. 6, a heat insulation film 201 is laid on the outer surface of the outer protection body 2, the heat insulation film 201 can insulate heat, and can effectively prevent edge warping caused by insolation, the heat insulation film 201 and the outer layer of the heat insulation film 201 are coated with a fluorescent material, and the heat insulation film 201 emits fluorescence at night, so that the outline of the plastic track is outlined, the attractiveness of the plastic track is increased, and the safety of people moving at night is prompted to pay attention to the safety of feet.

The working principle of the structure part of the scheme is as follows: when a repaired plastic track is soaked in rainwater for degumming, the power extrusion cavity 102 is compressed by the downward pressure of feet when a person steps on the edge of the track, the heat conduction oil in the power extrusion cavity 102 extrudes the elastic sealing film 204 to stretch the elastic sealing film into the first glue storage cavity 202 so as to drive the glue discharging part 205 to extrude waterproof glue, so that the separated glue is supplemented, when the weather of sun exposure is encountered, the heat insulation film 201 firstly isolates heat, the situation of edge warping and foaming is effectively prevented, the heat conduction part 207 transmits the heat to the thermal expansion ball 208, the thermal expansion ball 208 absorbs heat to expand and pushes the extrusion plate downwards to extrude the waterproof glue, and the self-glue supplement is realized.

The runway edge with raised edges is removed by shoveling the runway edge with raised edges, the problem of raised edges is solved by creatively adding a repairing layer, waterproof glue is filled in the repairing layer, the power extrusion cavity 102 extrudes heat conduction oil by utilizing the stepping action of a human foot, and then the elastic sealing film 204 is stretched to push the glue discharging piece 205 to extrude the waterproof glue, so that the glue is supplemented and repaired on the edge of the degummed runway, the trouble of subsequent repeated glue supplementation can be saved only by one-time construction in the early stage, maintenance personnel are released from heavy repairing work, the thermal expansion ball 208 is expanded by utilizing the high temperature of sun exposure, the waterproof glue is extruded, the self-enhanced bonding effect is realized, the problem of raised edges is effectively avoided to occur again, and the runway has good protection effect.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and modifications within the scope of the present invention.

Claims

1. A plastic track warped edge repairing method is characterized in that: the method comprises the following steps:

s3, adhering the repairing layer on the bottom coating and tightly connecting the repairing layer with the cut-off opening, compacting and solidifying the repairing layer firmly, and finally paving a particle surface layer above the repairing layer;

a plurality of bonding reinforcements (101) are fixedly embedded in the inner wall of the inner lining body (1), the upper ends of the bonding reinforcements (101) extend into the surface layer, each bonding reinforcement (101) comprises a connecting pile, the upper end of each connecting pile is fixedly connected with a traction ball, the lower end of each connecting pile extends downwards to form branches, and the branches are distributed in a tree root-shaped structure in a dispersed manner;

the inner wall of the inner lining body (1) is provided with a power extrusion cavity (102), heat conduction oil is filled in the power extrusion cavity (102), and the inner diameter of the power extrusion cavity (102) is gradually reduced from the inner lining body (1) to the outer protection body (2);

a first glue storage cavity (202) communicated with the power extrusion cavity (102) is formed in the inner wall of the outer protection body (2), waterproof glue is filled in the first glue storage cavity (202), the lower end of the first glue storage cavity (202) is communicated with a plurality of glue outlet opening channels (203), an elastic sealing film (204) is fixedly connected to the inner wall, close to the communicated part, of the first glue storage cavity (202), and a glue discharging piece (205) is fixedly connected to the outer side wall of the elastic sealing film (204);

the glue discharging piece (205) comprises two squeezing balls which are in sliding connection with the inner wall of the first glue storage cavity (202), and the two squeezing balls are connected through an inelastic connecting rod;

the inner wall of the outer protective body (2) is further provided with a second glue storage cavity (206) communicated with the first glue storage cavity (202), waterproof glue is filled in the second glue storage cavity (206), the inner wall of the upper end of the second glue storage cavity (206) is fixedly connected with a thermal expansion ball (208), the lower end of the thermal expansion ball (208) is fixedly connected with a squeezing plate in sliding connection with the inner wall of the second glue storage cavity (206), a heat conducting piece (207) is embedded in the thermal expansion ball (208), and the heat conducting piece (207) extends to the outer surface of the outer protective body (2);

the repairing layer in the step S3 comprises an inner lining body (1) and an outer protection body (2), the outer surface of the outer protection body (2) is an arc surface, and the upper surface of the inner lining body (1) is lower than the horizontal plane where the highest point of the outer protection body (2) is located.

2. The method for repairing the raised edge of the plastic runway according to claim 1, wherein: in the step S1, the slope of the cutting opening is 30-45 degrees, and the inclined direction of the cutting opening is the extension of the plastic track to the repairing layer.

3. The method for repairing the raised edge of the plastic runway according to claim 1, wherein: and a heat insulation film (201) is laid on the outer surface of the outer protection body (2), and the outer layer of the heat insulation film (201) is coated with a fluorescent material.

4. The method for repairing the raised edge of the plastic runway according to claim 1, wherein: the inner lining body (1) and the outer protection body (2) are of an integrated structure, and the inner lining body (1) and the outer protection body (2) are both made of elastic materials.