HFST high friction resin seal coat truck

Abstract

The present application relates to the technical field of road maintenance machinery and equipment, and particularly relates to a HFST high-friction resin seal coating vehicle, which comprises a vehicle body, a rubber material mixing mechanism, a stone spreading mechanism and a rubber material spreading mechanism arranged at the tail of the vehicle body; the rubber material mixing mechanism comprises an alternating resin adhesive forming device and outputs the resin adhesive to the rubber material spreading mechanism; the stone spreading mechanism stores and spreads the gravel; the rubber material spreading mechanism comprises a first rubber material spreading assembly and a second rubber material spreading assembly; the first rubber material spreading assembly comprises a first flow guide plate, the second rubber material spreading assembly comprises a second flow guide plate, the spreading box is provided with a discharging port, the gravel falls from the discharging port to the upper edge position of the second flow guide plate and rolls along the second flow guide plate, so that the resin adhesive on the second flow guide plate fully wraps the stone; thus, the surface of the gravel is wrapped with a layer of epoxy resin before falling to the road surface, the impregnation area of the gravel is increased, the adhesive strength of the stone and the resin is improved, and the construction quality is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of road maintenance machinery, in particular to a HFST high-friction resin seal layer vehicle. BACKGROUND

[0002] The HFST high-friction resin seal layer plays an important role in reducing traffic accidents and personal injuries due to its excellent anti-skid performance; the general construction process is to uniformly spread the resin binder, which is a mixture of resin and curing agent after being fully stirred at a rated ratio, on the concrete base surface of the road, and then uniformly spread the gravel on the thin layer of glue within a short time. After curing and maintenance, it can be used for traffic; the mixing and stirring of resin, the scraping of resin and the spreading of gravel in the above construction process all depend on manual operation, which has low construction efficiency, high labor cost and great construction quality hidden danger caused by unevenness of manual construction, and it is difficult to accurately measure and control the materials.

[0003] Patent No. CN207512553U discloses a paving vehicle for modified resin multifunctional road ultra-thin layer construction, which is provided with resin storage tank, curing agent storage tank, continuous synchronous mixing device, glue paving device, stone bin and gravel spreading system, which realizes automatic construction of multifunctional road ultra-thin layer. However, the above paving vehicle uniformly spreads the epoxy resin binder on the road, and then uniformly spreads the gravel on the thin layer of glue. This construction process will cause insufficient infiltration area of gravel and epoxy resin, generally only 25% to 40% of the lower part of the gravel is in contact with the epoxy resin, thereby causing insufficient bonding strength of the gravel and the resin, easy to appear the disease of grain separation and peeling, and difficult to ensure the construction quality.

[0004] The information disclosed in this BACKGROUND section is only intended to enhance the understanding of the general background of the application and should not be taken as recognition or admission that this information is prior art. SUMMARY

[0005] The technical problem to be solved by the present application is to provide a HFST high-friction resin seal layer vehicle to improve the bonding strength of stone and resin.

[0006] In order to achieve the above purpose, the technical solution adopted by the present application is: a HFST high-friction resin seal layer vehicle, comprising:

[0007] The vehicle body and the glue mixing mechanism, stone spreading mechanism and glue spreading mechanism arranged at the tail of the vehicle body;

[0008] The glue mixing mechanism comprises two independent mixing pots, which alternately mix resin and curing agent according to a predetermined ratio to form a resin adhesive and output to the glue spreading mechanism;

[0009] The stone spreading mechanism comprises a stone bin for storing the gravel and a spreading box for receiving and spreading the gravel in the stone bin.

[0010] The glue spreading mechanism comprises a first glue spreading assembly and a second glue spreading assembly, the first glue spreading assembly is located on one side of the traveling direction of the vehicle body and is used for spreading the resin binder on the road surface, and the second glue spreading assembly is located on one side of the retreating direction of the vehicle body and is used for pre-wrapping the resin binder on the gravel.

[0011] The first glue spreading assembly comprises a first deflector, the second glue spreading assembly comprises a second deflector, the spreading box is provided with a falling port, the first deflector and the second deflector are inclinedly arranged towards the retreating direction of the vehicle body, the falling port is located above the second deflector, the gravel falls from the falling port to the upper edge position of the second deflector and rolls along the second deflector, so that the resin binder on the second deflector fully wraps the stone.

[0012] Further, the inclination angle and height of the first deflector and the second deflector are adjustably arranged.

[0013] Further, the glue mixing mechanism further comprises a resin storage tank and a curing agent storage tank mounted on the vehicle body, the resin storage tank is used for storing and heat-insulating the resin, the curing agent storage tank is used for storing and heat-insulating the curing agent, and the resin storage tank and the curing agent storage tank are communicated with the glue inlet valves of the two independent mixing pots to convey the resin and the curing agent into the independent mixing pots.

[0014] Further, each independent mixing pot comprises a stirring cavity, a stirrer, a pressurizing interface, a weighing sensor and a stirring power source.

[0015] The stirrer is arranged in the stirring cavity, the stirring power source is fixed outside the stirring cavity and drives the stirrer to rotate, the pressurizing interface is arranged at the top end of the stirring cavity, and the weighing sensor is integrally arranged with an ear on the vehicle body and is used for sensing the weight of the resin and the curing agent conveyed into the stirring cavity.

[0016] Further, the stirring time of the independent mixing pot is adjustably arranged, and the volume of the stirring cavity is 100-300 L.

[0017] Further, the glue outlet valve of the stirring cavity is connected with a shunt box, and a plurality of glue pipe outlets are arranged on the first deflector and the second deflector, and the resin binder is conveyed into the plurality of glue pipe outlets through the branch hoses in the shunt box.

[0018] Further, the rubber pipe outlets are equidistantly distributed, and the interval is 5-8 cm.

[0019] Further, a conveying mechanism is arranged between the stone bin and the spreading box, the conveying mechanism comprises a conveying chain and a plurality of scrapers, the conveying chain is located at a discharge port at the bottom of the stone bin, and one end of the conveying chain extends to a feeding port at the top of the spreading box, the plurality of scrapers are symmetrically arranged on both sides of the conveying chain, and adjacent two scrapers are equidistantly arranged.

[0020] Further, the spreading box comprises a box body, a dispersing roller and a spreading baffle, the box body is hollowly arranged, and the length direction of the box body is perpendicular to the direction in which the vehicle body travels, the dispersing roller is arranged in the box body, and the end portion of the dispersing roller is rotationally connected with the box body, the spreading baffle is located at the discharge port and is rotationally connected with the box body, the free end of the spreading baffle extends towards the side where the second guide plate is located, and the rotation angle of the spreading baffle is adjustably arranged.

[0021] Further, the rotation angle of the spreading baffle is 0-85°.

[0022] Further, the side of the spreading baffle towards the discharge port is provided with a material blocking baffle, and the material blocking baffle and the spreading baffle are arranged at a certain angle.

[0023] Further, the spreading box is provided with an operation pedal on the side where the vehicle body retreats, the operation pedal is arranged perpendicularly to the side wall of the spreading box, and the end portion of the operation pedal is fixedly connected with the spreading box through a reinforcing rib to form a triangular structure.

[0024] Further, the first guide plate and the second guide plate are both made of polytetrafluoroethylene material.

[0025] The beneficial effects of the present application are as follows: the first rubber material spreading assembly of the present application uniformly spreads the resin bonding layer first, and then the second rubber material spreading assembly pre-wraps the gravel, so that the surface of the gravel is wrapped with a layer of epoxy resin before the gravel falls to the road surface, thereby increasing the wetting area of the gravel, improving the bonding strength of the stone and the resin, reducing the possibility of road disease, and ensuring the construction quality. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art without any creative labor.

[0027] Figure 1It is a structure schematic view of the HFST high friction resin seal layer vehicle in the embodiment of the present application.

[0028] Figure 2 It is a joint position schematic view of the rubber material mixing mechanism, stone spreading mechanism, rubber material spreading mechanism and conveying mechanism in the embodiment of the present application.

[0029] Figure 3 It is a structure schematic view of the rubber material mixing mechanism in the embodiment of the present application.

[0030] Figure 4 It is a structure schematic view of the rubber material spreading mechanism in the embodiment of the present application.

[0031] Figure 5 It is a structure schematic view of the conveying mechanism in the embodiment of the present application.

[0032] Figure 6 It is a structure schematic view of the stone spreading mechanism in the embodiment of the present application.

[0033] Figure 7 It is a working schematic view of the HFST high friction resin seal layer vehicle in the embodiment of the present application.

[0034] The figure mark: 01, vehicle body; 10, rubber material mixing mechanism; 11, independent mixing pot; 11a, rubber material inlet valve; 11b, stirring cavity; 11c, stirrer; 11d, pressure interface; 11e, weighing sensor; 11f, stirring power source; 11g, rubber material outlet valve; 12, resin storage tank; 13, curing agent storage tank; 14, flow dividing box; 20, stone spreading mechanism; 21, stone bin; 22, spreading box; 22a, material falling port; 22b, material inlet; 22c, box body; 22d, dispersing roller; 22e, spreading baffle; 22f, material blocking baffle; 22g, operation pedal; 22h, reinforcing rib; 30, rubber material spreading mechanism; 31, first flow guide plate; 32, second flow guide plate; 33, rubber pipe outlet; 40, conveying mechanism; 41, conveying chain; 42, scraper. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments.

[0036] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being “connected” to another element, it can be directly connected to the other element or there can be an intervening element. The terms “vertical”, “horizontal”, “left”, “right” and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0038] like Figures 1 to 7 The HFST high friction resin sealing vehicle shown includes: a vehicle body 01 and a rubber mixing mechanism 10, a stone spreading mechanism 20 and a rubber spreading mechanism 30 arranged at the rear of the vehicle body 01;

[0039] The rubber mixing mechanism 10 includes two independent mixing pots 11, which alternately mix the resin and the curing agent according to a preset ratio to form a resin adhesive and output it to the rubber spreading mechanism 30;

[0040] The stone spreading mechanism 20 includes a stone bin 21 and a spreading box 22. The stone bin 21 is used to store gravel, and the spreading box 22 is used to receive and spread the gravel in the stone bin 21.

[0041] The rubber spreading mechanism 30 includes a first rubber spreading assembly and a second rubber spreading assembly. The first rubber spreading assembly is located on the side of the vehicle body 01 in the direction of travel and is used to spread the resin adhesive on the road surface. The second rubber spreading assembly is located on the side of the vehicle body 01 in the direction of retreat and is used to pre-coat the gravel with the resin adhesive.

[0042] Among them, the first rubber spreading assembly includes a first guide plate 31, the second rubber spreading assembly includes a second guide plate 32, and the spreading box 22 is provided with a drop port 22a. The first guide plate 31 and the second guide plate 32 are inclined toward the direction in which the vehicle body 01 moves backward. The drop port 22a is located above the second guide plate 32. Due to the action of gravity, the gravel falls from the drop port 22a to the upper edge of the second guide plate 32, which has a certain impact force, causing the resin adhesive to form a pit toward the center of the gravel falling position, and form a coating on the gravel as it flows, and after rolling a certain distance along the second guide plate 32 due to inertia, the resin adhesive on the second guide plate 32 fully wraps the stone.

[0043] The present invention first evenly spreads the resin bonding layer through the first adhesive spreading component, and then pre-coats the gravel through the second adhesive spreading component, thereby ensuring that the surface of the gravel is coated with a layer of epoxy resin before it falls onto the road, thereby increasing the infiltration area of ​​the gravel, improving the bonding strength between the stone and the resin, reducing the possibility of road surface defects, and ensuring construction quality.

[0044] It should be noted that the curing reaction time of the general epoxy resin needs more than 90s, and the two independent mixers 11 perform intermittent stirring of the resin, leaving sufficient mixing time for the curing reaction of the epoxy resin, and further ensuring the construction quality.

[0045] On the basis of the above embodiment, the glue mixing mechanism 10 further comprises a resin storage tank 12 and a curing agent storage tank 13 mounted on the vehicle body 01, the resin storage tank 12 is used to store and heat the resin, the curing agent storage tank 13 is used to store and heat the curing agent, the resin storage tank 12 and the curing agent storage tank 13 are communicated with the glue valve 11a of the two independent mixers 11, and the resin and the curing agent are transported into the independent mixers 11; so as to ensure that the two independent mixers 11 can work normally and stably during the movement of the vehicle body 01, and ensure the continuity and stability of the resin adhesive layer.

[0046] On the basis of the above embodiment, each independent mixer 11 comprises a stirring cavity 11b, a stirrer 11c, a pressurizing interface 11d, a weighing sensor 11e and a stirring power source 11f;

[0047] The stirrer 11c is arranged in the stirring cavity 11b, the stirring power source 11f is fixed outside the stirring cavity 11b and drives the stirrer 11c to rotate, the pressurizing interface 11d is arranged at the top end of the stirring cavity 11b, and the weighing sensor 11e is arranged integrally with the lifting lug on the vehicle body 01 and is used to sense the weight of the resin and the curing agent transported into the stirring cavity 11b.

[0048] It should be noted that the stirring power source 11f can be driven by a motor, the rotation speed of the motor controls the rotation speed of the stirrer 11c, so as to adapt to the resin and the curing agent with different volumes in the stirring cavity 11b, and ensure the efficiency and stability of the stirring process; of course, other components can also be selected as the stirring power source 11f, which is not limited here, as long as the stirrer 11c can rotate in the stirring cavity 11b and mix the resin and the curing agent uniformly.

[0049] The pressurizing interface 11d is connected to an external pressure applying mechanism, after sufficient stirring and mixing, the resin and the curing agent are transported to the first glue spreading assembly and the second glue spreading assembly respectively through high pressure, and the high pressure serves as the transportation power to make the resin adhesive flow out smoothly and be leveled.

[0050] The weighing sensor 11e can sense the weight of the resin and the curing agent transported into the stirring cavity 11b in real time, so as to ensure that the proportion of the resin and the curing agent can be kept accurate and stable, avoid the imbalance of the proportion to cause the quality of the mixed resin adhesive to be unqualified, and thus ensure the efficiency and stability of the continuous operation.

[0051] The stirring time of the independent mixer 11 is adjustable, the volume of the stirring cavity 11b is 100-300L, and the volume can be adjusted according to the traveling speed of the vehicle body 01 and the size of the construction area. For example, when the stirring time of the independent mixer 11 is 2min, the stirring volume is 120L, the paving traveling speed is 16m / min, the paving width is 3.75m, and two independent mixers 11 work in turns, the paving amount of the resin adhesive can be 1L / m2, and the paving quality and efficiency can be effectively ensured.

[0052] On the basis of the above embodiment, the glue outlet valve 11g of the stirring cavity 11b is connected with a shunt box 14, a plurality of glue pipe outlets 33 are arranged on the first and second guide plates 31 and 32, and the resin adhesive is conveyed to the plurality of glue pipe outlets 33 through the branch hoses in the shunt box 14. According to different paving widths and positions, the number and position of the connected glue pipe outlets 33 are adjusted adaptively, so as to ensure the uniformity of the resin distribution in the paving process, and the gravel at each position can form a coating effect with the epoxy resin.

[0053] The glue pipe outlets 33 are equidistantly distributed, and the interval is 5-8cm. When the interval is too small, the adjacent glue pipe outlets 33 are prevented from extruding too much and forming accumulation, and when the interval is too large, the adjacent glue pipe outlets 33 are prevented from forming a gap between the extruded resin adhesives, thereby forming a construction defect.

[0054] It should be noted that the first and second glue spreading systems both use high pressure as the conveying power, which can be provided by a separately arranged pump and a high-pressure gas source. On the one hand, the high pressure can extrude the mixed epoxy resin, thereby avoiding too many bubbles caused by spraying the epoxy resin and affecting the bonding strength. On the other hand, the high pressure can be used for pipeline cleaning after the construction is completed.

[0055] On the basis of the above embodiment, a conveying mechanism 40 is arranged between the stone bin 21 and the spreading box 22. The conveying mechanism 40 includes a conveying chain 41 and a plurality of scrapers 42. The conveying chain 41 is located at the discharge port at the bottom of the stone bin 21, and extends to the inlet 22b at the top of the spreading box 22 at one end. The plurality of scrapers 42 are symmetrically arranged on both sides of the conveying chain 41, and the adjacent two scrapers 42 are equidistantly arranged. The gravel falls from the discharge port at the bottom of the stone bin 21 to the conveying chain 41 due to gravity, and is dispersed by the scrapers 42 while rotating with the conveying chain 41, thereby ensuring the uniformity of the stone spreading.

[0056] On the basis of the above embodiment, the scattering box 22 comprises a box body 22c, a scattering roller 22d and a scattering baffle 22e, the box body 22c is hollowly arranged and the length direction is perpendicular to the direction in which the vehicle body 01 travels, the scattering roller 22d is arranged in the box body 22c and rotationally connected with the box body 22c at the end, the scattering baffle 22e is rotationally connected with the box body 22c at the material dropping port 22a and the free end extends to the side where the second guide plate 32 is located, and the rotation angle of the scattering baffle 22e is adjustably arranged; when the gravel enters the box body 22c from the material inlet 22b, the gravel is scattered to the two ends of the box body 22c due to the action of the scattering roller 22d, so that the gravel falling on the second guide plate 32 is uniformly distributed and each gravel can be coated with the resin adhesive.

[0057] The rotation angle of the scattering baffle 22e is 0-85°, according to the inclination angle and height of the second guide plate 32, in order to ensure that the gravel can be dropped along the scattering baffle to the upper edge position of the second guide plate 32, the inclination angle of the scattering baffle 22e can be adjusted accordingly, so that the gravel falling is uniform and stable and has a good coating effect.

[0058] The side of the scattering baffle 22e facing the material dropping port 22a is provided with a material blocking baffle 22f, and the material blocking baffle 22f and the scattering baffle 22e are arranged at a certain angle. Since the scattering baffle 22e extends towards the second guide plate 32, the material dropping port 22a cannot be completely closed after the gravel scattering is completed. By arranging the material blocking baffle 22f at a certain angle, the material dropping port 22a is closed to form a blocking effect, effectively preventing residual gravel in the box body 22c from falling out of the material dropping port 22a and reducing material waste.

[0059] The operation pedal 22g is arranged on the side of the scattering box 22 where the vehicle body 01 retreats, the operation pedal 22g is arranged perpendicular to the side wall of the scattering box 22, and the end is triangularly fixedly connected between the operation pedal 22g and the scattering box 22 through the reinforcing rib 22h, which provides a standing platform for the operator when manual operation is needed, and is stable and reliable.

[0060] On the basis of the above embodiment, the first guide plate 31 and the second guide plate 32 are made of polytetrafluoroethylene material. Since polytetrafluoroethylene has the characteristic of not sticking to epoxy resin, the residual epoxy resin on the guide plate is easy to clean after the paving construction is completed, which reduces the resin cleaning cost and is beneficial to resource recycling.

[0061] The inclination angle and height of the first guide plate 31 and the second guide plate 32 are adjustable, if the second guide plate 32 is far from the road surface and has a large slope, the resin amount wrapped with stone is small, if the second guide plate 32 is close to the road surface and has a small slope, the resin amount wrapped with stone is large, that is, the pre-wrapped resin amount of the stone falling on the guide plate of the second glue spreading system can be adjusted, and the pre-wrapped effect of the stone is ensured.

[0062] Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A HFST high friction resin seal vehicle, characterized in that: include: A vehicle body and a rubber mixing mechanism, a stone spreading mechanism and a rubber spreading mechanism arranged at the rear of the vehicle body; The rubber mixing mechanism includes two independent mixing pots, which alternately mix resin and curing agent according to a preset ratio to form a resin adhesive and output it to the rubber spreading mechanism; The stone spreading mechanism includes a stone bin and a spreading box, wherein the stone bin is used to store gravel, and the spreading box is used to receive and spread the gravel in the stone bin; The rubber spreading mechanism includes a first rubber spreading assembly and a second rubber spreading assembly. The first rubber spreading assembly is located on the side of the vehicle body in the direction of travel and is used to spread the resin adhesive on the road surface. The second rubber spreading assembly is located on the side of the vehicle body in the direction of retreat and is used to pre-coat the gravel with the resin adhesive. The first rubber spreading assembly includes a first guide plate, the second rubber spreading assembly includes a second guide plate, the spreading box is provided with a drop opening, the first guide plate and the second guide plate are arranged obliquely toward the direction in which the vehicle body moves backward, the drop opening is located above the second guide plate, and the crushed stones fall from the drop opening to the upper edge of the second guide plate and roll along the second guide plate, so that the resin adhesive on the second guide plate fully coats the stones; The spreading box includes a box body, a dispersion roller and a spreading baffle. The box body is hollow and its length direction is perpendicular to the direction of travel of the vehicle body. The dispersion roller is arranged in the box body, and its end is rotatably connected to the box body. The spreading baffle is located at the dropout port and is rotatably connected to the box body. The free end extends toward the side where the second guide plate is located, and the rotation angle of the spreading baffle is adjustable. The rotation angle of the spreading baffle is 0 to 85 degrees, which is adjusted according to the inclination angle and height of the second guide plate; The inclination angle and height of the first guide plate and the second guide plate can be adjusted to adjust the amount of pre-coating resin on the stone on the second guide plate before falling into the second rubber material spreading system, thereby ensuring uniform and stable falling of the crushed stone while achieving a good coating effect; When the second guide plate is far away from the road surface and the slope is large, the amount of resin used for stone coating is reduced; when the second guide plate is close to the road surface and the slope is small, the amount of resin used for stone coating is increased.

2. The HFST high friction resin seal vehicle according to claim 1, characterized in that: The rubber mixing mechanism also includes a resin storage tank and a curing agent storage tank installed on the vehicle body. The resin storage tank is used to store and keep the resin warm, and the curing agent storage tank is used to store and keep the curing agent warm. The resin storage tank and the curing agent storage tank are connected to the glue inlet valves of the two independent mixing pots to transport resin and curing agent into the independent mixing pots.

3. The HFST high friction resin seal vehicle according to claim 1, characterized in that: Each independent mixing pot includes a stirring chamber, a stirrer, a pressurizing interface, a weighing sensor and a stirring power source; The agitator is arranged in the stirring chamber, the stirring power source is fixed outside the stirring chamber and drives the agitator to rotate, the pressurized interface is arranged at the top of the stirring chamber, and the weighing sensor is integrated with the lifting ear on the vehicle body to sense the weight of the resin and curing agent delivered to the stirring chamber.

4. The HFST high friction resin seal vehicle according to claim 3, characterized in that: The glue outlet valve of the stirring chamber is connected to a diverter box, and a plurality of hose outlets are provided on the first guide plate and the second guide plate. The resin adhesive is transported to the plurality of hose outlets through the branch hoses in the diverter box.

5. The HFST high friction resin seal vehicle according to claim 4, characterized in that: The hose outlets are evenly spaced at intervals of 5 to 8 cm.

6. The HFST high friction resin seal vehicle according to claim 1, characterized in that: A conveying mechanism is provided between the stone silo and the spreading box, and the conveying mechanism includes a conveying chain and a plurality of scrapers. The conveying chain is located at the discharge port at the bottom of the stone silo, and one end extends to the feed port at the top of the spreading box. The plurality of scrapers are symmetrically arranged on both sides of the conveying chain, and adjacent scrapers are arranged at equal intervals.

7. The HFST high friction resin seal vehicle according to claim 1, characterized in that: A material blocking plate is provided on one side of the spreading baffle facing the material dropout port, and a certain angle is formed between the material blocking plate and the spreading baffle.

8. The HFST high friction resin seal vehicle according to claim 1, characterized in that: The spreading box is provided with an operating pedal on the side of the vehicle body in the backward direction. The operating pedal is arranged perpendicular to the side wall of the spreading box, and the end thereof is fixedly connected to the spreading box in a triangle through a reinforcing rib.

9. The HFST high friction resin seal vehicle according to claim 1, characterized in that: The first guide plate and the second guide plate are both made of polytetrafluoroethylene.

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