A mobile emulsified asphalt spreader

Abstract

The present invention discloses a mobile emulsified asphalt spreader, including a mobile frame, an emulsified asphalt tank, a gasoline blower, a spraying steel pipe, a hose, a branch pipe, a proportional solenoid valve, an emulsified asphalt oil pipe, an anti-splash cover, and an adjustment mechanism, wherein the adjustment mechanism is used to adjust the spraying angle of the spraying steel pipe along the horizontal direction and adjust the spraying port height of the spraying steel pipe. The present invention has the following advantages and effects: when spraying emulsified asphalt on the side of a structure, the emulsified asphalt flows down from the emulsified asphalt tank by itself, and the opening and closing and flow control are controlled by the proportional solenoid valve. When the emulsified asphalt is transported to the spraying steel pipe, the gasoline blower sprays out from the spraying steel pipe under the action of wind force to form an atomized spraying effect, and the anti-splash cover prevents the atomized emulsified asphalt from splashing, so that the spray coating edge is uniform and complete; at the same time, the setting of the adjustment mechanism can realize the adjustment of the spraying direction and spraying height of the spraying steel pipe.

Description

Technical Field

[0001] The invention relates to the technical field of building construction equipment, and in particular to a mobile emulsified asphalt spreader. Background Art

[0002] With the vigorous development of my country's transportation infrastructure construction, intelligent production, increased labor costs, higher quality requirements, and cost reduction requirements are the control nodes of fierce competition in the construction industry. The tack layer is a structural functional layer that uses emulsified asphalt to bond and waterproof the asphalt pavement structure. The role of the tack layer is to make the layers, the surface layer and the structure form a whole, and provide interlayer shear resistance, while also having a certain waterproof effect.

[0003] In the past, emulsified asphalt was applied to structures (cement concrete guardrails, curbstones, ditch edges, etc.) by manual roller brushing. The brushing method is: workers hold roller brushes or other brushing tools and carry emulsified asphalt containers to manually apply emulsified asphalt to the inside of the structure. This has the following disadvantages: (1) the thickness of manual brushing is uneven, the brushing height is uneven, and some parts are missed, resulting in serious waste, increased construction costs, and low construction efficiency; (2) the manual brushing operation progresses slowly, affecting the subsequent asphalt pavement paving operation. Therefore, it is urgent to design a corresponding instrument to solve the construction of emulsified asphalt in the coating of structure edges. Summary of the invention

[0004] The purpose of the present invention is to provide a mobile emulsified asphalt spreader, which has the advantages of uniform and complete spraying and coating edges and improved construction efficiency.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: a mobile emulsified asphalt spreader, comprising a mobile frame, an emulsified asphalt tank arranged on the mobile frame, a gasoline blower arranged on the mobile frame, a spraying steel pipe, a hose connected between the spraying steel pipe and the gasoline blower, a branch pipe connected to the middle of the spraying steel pipe, a proportional solenoid valve connected to the discharge end of the emulsified asphalt tank, an emulsified asphalt oil pipe connected between the proportional solenoid valve and the branch pipe, a splash-proof cover arranged on the spraying steel pipe to prevent the emulsified asphalt sprayed from the spraying steel pipe from splashing, and an adjusting mechanism arranged between the spraying steel pipe and the mobile frame. The emulsified asphalt in the emulsified asphalt tank flows down along the proportional solenoid valve and the emulsified asphalt oil pipe under the action of gravity, and the adjusting mechanism is used to adjust the spraying angle of the spraying steel pipe along the horizontal direction and adjust the spray port height of the spraying steel pipe.

[0006] By adopting the above scheme, when emulsified asphalt is sprayed on the side of the structure, the emulsified asphalt flows down from the emulsified asphalt tank by gravity, and the opening and closing and flow control are controlled by the proportional solenoid valve. When the emulsified asphalt is transported to the spraying steel pipe, it is sprayed out from the spraying steel pipe under the action of wind by the gasoline blower, forming an atomized spraying effect. At the same time, the splash shield prevents the atomized emulsified asphalt from splashing, so that the spray coating edge is uniform and complete; at the same time, the setting of the adjustment mechanism can realize the adjustment of the spraying direction and spraying height of the spraying steel pipe.

[0007] The present invention is further configured as follows: the adjustment mechanism includes a rotating shaft rotatably connected to the mobile frame, a connecting frame arranged at the lower end of the rotating shaft and rotatably connected to one end of the spraying steel pipe close to the hose, a support arm arranged above the rotating shaft, a telescopic rod hingedly arranged between the end of the support arm away from the rotating shaft and the spraying steel pipe, an adjustment handle arranged at the upper end of the rotating shaft, and a limit assembly arranged on the mobile frame and used to limit the position of the adjustment handle.

[0008] By adopting the above scheme, one end of the spraying steel pipe is rotatably connected to the connecting frame. After the length of the telescopic rod is extended and retracted, the telescopic rod is hinged between the supporting arm and the spraying steel pipe, so that the spraying height of the spraying pipe can be adjusted to realize spraying of emulsified asphalt of different heights on the structure; at the same time, rotating the adjusting handle can drive the rotating shaft and the spraying steel pipe to rotate together, and the angle of the spraying steel pipe can be limited by limiting the adjusting handle through the limit assembly.

[0009] The present invention is further configured as follows: the telescopic rod includes a first screw whose lower end is hinged to the circumferential side of the spraying steel pipe, a second screw whose upper end is hinged to the support arm, and an adjustment sleeve whose two ends are respectively threadedly connected to the first screw and the second screw, and the thread directions of the first screw and the second screw are opposite.

[0010] The present invention is further configured as follows: the limit assembly includes an arc-shaped limit plate which is lifted and lowered on a moving frame and has two limit grooves, and a limit spring which is arranged between the moving frame and the arc-shaped limit plate, and the opening edge of the limit groove is arranged in an arc shape; when the shaft body of the adjustment handle is embedded in the two limit grooves, the spraying direction of the spray steel pipe is tilted toward the left and right sides of the moving frame respectively, and the middle part of the splash guard is rotatably connected to the end of the spray steel pipe away from the hose, and also includes an angle adjustment assembly for adjusting the angle of the splash guard so that when the spraying direction of the spray steel pipe is tilted toward the left and right sides respectively, it can maintain a state of being in contact with the side of the structure.

[0011] By adopting the above scheme, the limiting component includes an arc-shaped limiting plate with a limiting groove and a limiting spring. When a rotational force is applied to the adjusting handle, the arc-shaped limiting plate is pressed, causing the limiting spring to compress, thereby enabling the arc-shaped limiting plate to move downward. At this time, the adjusting handle can be rotated. At the same time, after the adjusting handle rotates to a position in the limiting groove, the arc-shaped limiting plate moves upward under the action of the limiting spring, causing the limiting groove to engage with the shaft body of the adjusting handle, thereby fixing the position of the adjusting handle. At the same time, the rotation angle of the spraying steel pipe is not likely to be too large, otherwise it will cause the bending angle at the connection between the hose and the spraying steel pipe to be too large, resulting in a problem of reduced wind force. At this time, after the adjusting handle is adjusted, the spraying directions of the spraying steel pipes are respectively inclined towards the left and right sides of the moving vehicle frame. At this time, when the anti-splash cover rotates to both sides, it is difficult to maintain the state of being attached to the structures on both sides at the same time. Therefore, the anti-splash cover is rotatably connected to the spraying steel pipe, so that the angle of the anti-splash cover can be adjusted through the angle adjustment component to keep it attached to the side of the structure when the spraying directions of the spraying steel pipes are respectively inclined towards the left and right sides.

[0012] A further setting of the present invention is that: during the process of the limiting groove at one end where the adjusting handle is embedded rotating to the limiting groove at the other end, the rotation angle is not greater than 90 degrees; the angle adjustment component includes a chute in the shape of "凵" arranged on the upper surface of the anti-splash cover, a sliding seat slidably connected in the chute, and a tension spring with both ends connected between the sliding seat and the branch pipe; the middle of the chute is located in the middle of the anti-splash cover and both ends face towards the direction close to the spraying steel pipe, and both ends of the chute are on the same circular ring with the center of the circle on the rotation axis of the anti-splash cover; when the spraying steel pipe rotates and faces the left side of the moving vehicle frame, during the process of moving the sliding seat to the left end of the chute close to the left side, the anti-splash cover rotates to a state parallel to the side of the structure under the action of the tension spring; conversely, when the spraying steel pipe rotates and faces the right side of the moving vehicle frame, during the process of moving the sliding seat to the right end of the chute close to the right side, the anti-splash cover rotates to a state parallel to the side of the structure under the action of the tension spring.

[0013] By adopting the above scheme, when the spraying steel pipe rotates and faces the left side of the moving vehicle frame, during the process of moving the sliding seat to the left end of the chute close to the left side, the anti-splash cover rotates to a state parallel to the side of the structure under the action of the tension spring; conversely, when the spraying steel pipe rotates and faces the right side of the moving vehicle frame, during the process of moving the sliding seat to the right end of the chute close to the right side, the anti-splash cover rotates to a state parallel to the side of the structure under the action of the tension spring; and the anti-splash cover is used to be attached to the side of the structure during use, and at this time, the anti-splash cover will not rotate during use; at the same time, after the angle adjustment component adjusts the angle of the anti-splash cover, the anti-splash cover can move to a certain extent after being stressed, avoiding the occurrence of the situation of bumping and jamming with the structure.

[0014] The present invention is further configured as follows: a plurality of spherical grooves are arranged on the upper edge of the side opening of the splash shield, and spheres are movably arranged in the spherical grooves for resisting against the side surface of the structure to form rolling friction.

[0015] By adopting the above solution, the sphere in the spherical groove of the splash shield can form rolling friction with the side surface of the structure, thereby reducing the friction force when contacting the structure.

[0016] The present invention is further configured as follows: a solar energy system for powering the proportional solenoid valve is arranged on the top of the mobile frame, and the solar energy system includes a battery arranged in the mobile frame, a solar panel arranged on the top of the mobile frame and electrically connected to the battery, and a control panel for controlling the charging and discharging of the battery and controlling the opening and closing of the proportional solenoid valve.

[0017] By adopting the above solution, the solar energy system can be set up to power the proportional solenoid valve, which has the effect of environmental protection, energy saving and emission reduction.

[0018] The present invention is further configured as follows: wheels are arranged on both side surfaces of the mobile frame, auxiliary wheels are arranged on the rear bottom of the mobile frame, an inspection door is arranged on the rear side of the mobile frame, and a push handle is arranged on the rear top of the mobile frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the structure after removing part of the structure of the movable frame in the present invention;

[0021] Figure 3 It is a partial structural schematic diagram of the spraying steel pipe, the regulating mechanism and the splash-proof cover in the present invention;

[0022] Figure 4 yes Figure 3 A partial enlarged view of point A in the figure.

[0023] Reference numerals: 1, mobile frame; 2, emulsified asphalt tank; 3, gasoline blower; 4, spraying steel pipe; 5, hose; 6, branch pipe; 7, proportional solenoid valve; 8, emulsified asphalt oil pipe; 9, splash shield; 91, spherical groove; 92, sphere; 10, adjustment mechanism; 101, rotating shaft; 102, connecting frame; 103, supporting arm; 104, telescopic rod; 1041, first screw; 1042, second screw; 104 3. Adjustment sleeve; 105. Adjustment handle; 106. Limiting assembly; 1061. Arc limiting plate; 10611. Limiting groove; 1062. Limiting spring; 11. Angle adjustment assembly; 111. Slide groove; 112. Sliding seat; 113. Tension spring; 121. Battery; 122. Solar panel; 123. Control panel; 131. Wheel; 132. Auxiliary wheel; 133. Inspection door; 134. Push handle. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0025] Embodiment: A mobile emulsified asphalt spreader, such as Figure 1 and Figure 2 As shown, it includes a mobile frame 1, an emulsified asphalt tank 2 arranged on the mobile frame 1, a gasoline blower 3 arranged on the mobile frame 1, a spraying steel pipe 4, a hose 5 connected between the spraying steel pipe 4 and the gasoline blower 3, a branch pipe 6 connected to the middle of the spraying steel pipe 4, a proportional solenoid valve 7 connected to the discharge end of the emulsified asphalt tank 2, an emulsified asphalt oil pipe 8 connected between the proportional solenoid valve 7 and the branch pipe 6, a splash-proof cover 9 arranged on the spraying steel pipe 4 to prevent the emulsified asphalt sprayed from the spraying steel pipe 4 from splashing, and an adjusting mechanism 10 arranged between the spraying steel pipe 4 and the mobile frame 1. The emulsified asphalt in the emulsified asphalt tank 2 flows down along the proportional solenoid valve 7 and the emulsified asphalt oil pipe 8 under the action of gravity, and the adjusting mechanism 10 is used to adjust the spraying angle of the spraying steel pipe 4 along the horizontal direction and adjust the spraying port height of the spraying steel pipe 4.

[0026] like Figure 1 and Figure 2 As shown, wheels 131 are provided on both sides of the mobile frame 1, auxiliary wheels 132 are provided on the rear bottom of the mobile frame 1, an inspection door 133 is provided on the rear side of the mobile frame 1, and a handle 134 is provided on the rear top of the mobile frame 1. A solar energy system for powering the proportional solenoid valve 7 is provided on the top of the mobile frame 1, and the solar energy system includes a battery 121 provided in the mobile frame 1, a solar panel 122 provided on the top of the mobile frame 1 and electrically connected to the battery 121, and a control panel 123 for controlling the charging and discharging of the battery 121 and controlling the opening and closing of the proportional solenoid valve 7.

[0027] like Figure 2 and Figure 3As shown, the adjustment mechanism 10 includes a rotating shaft 101 rotatably connected to the mobile frame 1, a connecting frame 102 arranged at the lower end of the rotating shaft 101 and rotatably connected to the end of the spraying steel pipe 4 close to the hose 5, a support arm 103 arranged above the rotating shaft 101, a telescopic rod 104 hingedly arranged between the end of the support arm 103 away from the rotating shaft 101 and the spraying steel pipe 4, an adjustment handle 105 arranged at the upper end of the rotating shaft 101, and a limit assembly 106 arranged on the mobile frame 1 and used to limit the position of the adjustment handle 105.

[0028] like Figure 2 and Figure 3 As shown, the telescopic rod 104 includes a first screw 1041 whose lower end is hinged to the circumference of the spraying steel pipe 4, a second screw 1042 whose upper end is hinged to the support arm 103, and an adjustment sleeve 1043 whose two ends are respectively threadedly connected to the first screw 1041 and the second screw 1042, and the thread directions of the first screw 1041 and the second screw 1042 are opposite. The limiting assembly 106 includes an arc-shaped limiting plate 1061 which is lifted and arranged on the mobile frame 1 and has two limiting grooves 10611, and a plurality of limiting springs 1062 arranged between the mobile frame 1 and the arc-shaped limiting plate 1061, and the opening edge of the limiting groove 10611 is arranged in an arc shape; when the shaft body of the adjusting handle 105 is embedded in the two limiting grooves 10611, the spraying direction of the spraying steel pipe 4 is tilted toward the left and right sides of the mobile frame 1, and the middle part of the splash shield 9 is rotatably connected to the end of the spraying steel pipe 4 away from the hose 5.

[0029] like Figure 3 and Figure 4As shown, during the process of the limiting groove 10611 at one end where the adjusting handle 105 is embedded rotates to the limiting groove 10611 at the other end, the rotation angle is not greater than 90 degrees (90 degrees in this application). It also includes an angle adjustment assembly 11 for adjusting the angle of the anti-splash cover 9 so that when the spraying directions of the spraying steel pipes 4 are inclined towards the left and right sides respectively, it can maintain a state of being attached to the side of the structure. The angle adjustment assembly 11 includes a chute 111 in a "U" shape arranged on the upper surface of the anti-splash cover 9, a sliding seat 112 slidably connected in the chute 111, and a tension spring 113 with both ends connected between the sliding seat 112 and the branch pipe 6; the middle part of the chute 111 is located at the middle of the anti-splash cover 9 and both ends face towards the direction close to the spraying steel pipe 4, and both ends of the chute 111 are on the same circular ring with the center of the circle on the rotation axis of the anti-splash cover 9; when the spraying steel pipe 4 rotates and faces the left side of the moving vehicle frame 1, during the process of moving the sliding seat 112 to the left end of the chute 111, the anti-splash cover 9 rotates to a state parallel to the side of the structure under the action of the tension spring 113; conversely, when the spraying steel pipe 4 rotates and faces the right side of the moving vehicle frame 1, during the process of moving the sliding seat 112 to the right end of the chute 111, the anti-splash cover 9 rotates to a state parallel to the side of the structure under the action of the tension spring 113.

[0030] At the same time, a plurality of spherical grooves 91 are provided on the upper edge of the side opening of the anti-splash cover 9, and spheres 92 for forming rolling friction by abutting against the side of the structure are movably arranged in the spherical grooves 91.

[0031] Implementation effect: When spraying emulsified asphalt on the side of the structure, the emulsified asphalt flows down from the emulsified asphalt tank 2, and the opening and closing and flow control are controlled by the proportional solenoid valve 7. When the emulsified asphalt is transported into the spraying steel pipe 4, it is ejected from the spraying steel pipe 4 under the wind force of the gasoline blower 3 to form an atomized spraying effect. At the same time, the anti-splash cover 9 plays a role in preventing the atomized emulsified asphalt from splashing, making the spraying edge uniform and complete; at the same time, the setting of the adjustment mechanism 10 can realize the adjustment of the spraying direction and spraying height of the spraying steel pipe 4. At the same time, the setting of the solar energy system can supply power to the proportional solenoid valve 7, playing an environmentally friendly role in energy conservation and emission reduction.

[0032] One end of the spraying steel pipe 4 is rotatably connected to the connecting frame 102. After the length of the telescopic rod 104 is extended or retracted, the telescopic rod is hinged between the support arm 103 and the spraying steel pipe 4, so that the spraying height of the spraying pipe can be adjusted to spray emulsified asphalt of different heights on the structure; at the same time, rotating the adjusting handle 105 can drive the rotating shaft 101 and the spraying steel pipe 4 to rotate together, and the angle of the spraying steel pipe 4 can be limited by limiting the adjusting handle 105 through the limit assembly 106. The limiting assembly 106 includes an arc-shaped limiting plate 1061 with a limiting groove 10611 and a limiting spring 1062. When a rotational force is applied to the adjusting handle 105, the arc-shaped limiting plate 1061 is compressed to compress the limiting spring 1062, thereby realizing the downward movement of the arc-shaped limiting plate 1061, and the adjusting handle 105 can be rotated at this time; at the same time, after the adjusting handle 105 is rotated and located at the position of the limiting groove 10611, the arc-shaped limiting plate 1061 moves upward under the action of the limiting spring 1062, so that the limiting groove 10611 is buckled on the shaft of the adjusting handle 105, so that the position of the adjusting handle 105 is fixed. At the same time, the rotation angle of the spraying steel pipe 4 should not be too large, otherwise it will cause the bending angle of the connection between the hose 5 and the spraying steel pipe 4 to be too large, thereby causing the problem of reduced wind force. At this time, after adjusting the adjustment handle 105, the spraying direction of the spraying steel pipe 4 is tilted toward the left and right sides of the mobile frame 1. At this time, when the splash guard 9 is rotated to both sides, it is difficult to keep it in contact with the structures on both sides at the same time. Therefore, the splash guard 9 is rotatably connected to the spraying steel pipe 4, so that the angle of the splash guard 9 can be adjusted through the angle adjustment component 11 so that when the spraying direction of the spraying steel pipe 4 is tilted toward the left and right sides, it can keep it in contact with the side of the structure.

[0033] When the spraying steel pipe 4 is rotated to face the left side of the moving frame 1, in the process of making the sliding seat 112 move to the end of the slide groove 111 close to the left side, the splash shield 9 is rotated to a state parallel to the side surface of the structure under the action of the tension spring 113; conversely, when the spraying steel pipe 4 is rotated to face the right side of the moving frame 1, in the process of making the sliding seat 112 move to the end of the slide groove 111 close to the right side, the splash shield 9 is rotated to a state parallel to the side surface of the structure under the action of the tension spring 113; and the splash shield 9 is used to fit the side surface of the structure when in use, and the splash shield 9 will not rotate during use; at the same time, after the angle adjustment component 11 adjusts the angle of the splash shield 9, the splash shield 9 can perform certain activities after being subjected to force, so as to avoid being launched due to collision and jamming with the structure.

[0034] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A mobile emulsified asphalt spreader, characterized in that: The invention comprises a mobile frame (1), an emulsified asphalt tank (2) arranged on the mobile frame (1), a gasoline blower (3) arranged on the mobile frame (1), a spraying steel pipe (4), a hose (5) connected between the spraying steel pipe (4) and the gasoline blower (3), a branch pipe (6) connected to the middle of the spraying steel pipe (4), a proportional solenoid valve (7) connected to the discharge end of the emulsified asphalt tank (2), an emulsified asphalt oil pipe (8) connected between the proportional solenoid valve (7) and the branch pipe (6), and a spraying steel pipe (4). A splash shield (9) is arranged on the spraying steel pipe (4) to prevent the emulsified asphalt sprayed from the spraying steel pipe (4) from splashing, and an adjustment mechanism (10) is arranged between the spraying steel pipe (4) and the moving frame (1). The emulsified asphalt in the emulsified asphalt tank (2) flows down along the proportional solenoid valve (7) and the emulsified asphalt oil pipe (8) under the action of gravity. The adjustment mechanism (10) is used to adjust the spraying angle of the spraying steel pipe (4) along the horizontal direction and adjust the height of the spraying port of the spraying steel pipe (4); The adjustment mechanism (10) comprises a rotating shaft (101) rotatably connected to the mobile frame (1), a connecting frame (102) arranged at the lower end of the rotating shaft (101) and rotatably connected to the end of the spraying steel pipe (4) close to the hose (5), a support arm (103) arranged above the rotating shaft (101), a telescopic rod (104) hingedly arranged between the end of the support arm (103) away from the rotating shaft (101) and the spraying steel pipe (4), an adjustment handle (105) arranged at the upper end of the rotating shaft (101), and a limit assembly (106) arranged on the mobile frame (1) and used to limit the position of the adjustment handle (105); A solar energy system for supplying power to the proportional solenoid valve (7) is arranged on the top of the moving frame (1), the solar energy system comprising a storage battery (121) arranged in the moving frame (1), a solar panel (122) arranged on the top of the moving frame (1) and electrically connected to the storage battery (121), and a control panel (123) for controlling the charging and discharging of the storage battery (121) and controlling the opening and closing of the proportional solenoid valve (7).

2. A mobile emulsified asphalt spreader according to claim 1, characterized in that: The telescopic rod (104) comprises a first screw rod (1041) whose lower end is hinged to the peripheral side of the spraying steel pipe (4), a second screw rod (1042) whose upper end is hinged to the support arm (103), and an adjustment sleeve (1043) whose two ends are respectively threadedly connected to the first screw rod (1041) and the second screw rod (1042), wherein the thread directions of the first screw rod (1041) and the second screw rod (1042) are opposite.

3. A mobile emulsified asphalt spreader according to claim 1, characterized in that: The limiting component (106) includes an arc-shaped limiting plate (1061) that is vertically arranged on the mobile vehicle frame (1) and has two limiting slots (10611), and a limiting spring (1062) arranged between the mobile vehicle frame (1) and the arc-shaped limiting plate (1061). The opening edge of the limiting slot (10611) is arc-shaped. When the shaft body of the adjusting handle (105) is embedded in the two limiting slots (10611), the spraying directions of the spraying steel pipes (4) are respectively inclined towards the left and right sides of the mobile vehicle frame (1). The middle part of the anti-splash cover (9) is rotatably connected to one end of the spraying steel pipe (4) far from the hose (5). It further includes an angle adjusting component (11) for adjusting the angle of the anti-splash cover (9) so that when the spraying directions of the spraying steel pipes (4) are respectively inclined towards the left and right sides, it can maintain a state of being attached to the side of the structure.

4. A mobile emulsified asphalt spreader according to claim 3, characterized in that: During the process of the adjusting handle (105) rotating from being embedded in one limiting slot (10611) to being embedded in the other limiting slot (10611), the rotation angle is not greater than 90 degrees. The angle adjusting component (11) includes a chute (111) in a "U" shape arranged on the upper surface of the anti-splash cover (9), a sliding seat (112) slidably connected in the chute (111), and a tension spring (113) with both ends connected between the sliding seat (112) and the branch pipe (6). The middle part of the chute (111) is located in the middle of the anti-splash cover (9) and both ends face towards the direction close to the spraying steel pipe (4). Both ends of the chute (111) are on the same circular ring with the center of the circle on the rotation axis of the anti-splash cover (9). When the spraying steel pipe (4) rotates towards the left side of the mobile vehicle frame (1), during the process of moving the sliding seat (112) to the left end of the chute (111), the anti-splash cover (9) rotates to a state parallel to the side of the structure under the action of the tension spring (113). Conversely, when the spraying steel pipe (4) rotates towards the right side of the mobile vehicle frame (1), during the process of moving the sliding seat (112) to the right end of the chute (111), the anti-splash cover (9) rotates to a state parallel to the side of the structure under the action of the tension spring (113).

5. The mobile emulsified asphalt spreader according to claim 1, characterized in that: A plurality of spherical grooves (91) are arranged on the upper edge of the side opening of the anti-splash cover (9), and spheres (92) for forming rolling friction by abutting against the side of the structure are movably arranged in the spherical grooves (91).

6. The mobile emulsified asphalt spreader according to claim 1, characterized in that: Wheels (131) are arranged on both side surfaces of the mobile vehicle frame (1). An auxiliary wheel (132) is arranged at the bottom of the rear side of the mobile vehicle frame (1). An inspection door (133) is arranged on the rear side surface of the mobile vehicle frame (1). A push handle (134) is arranged at the top of the rear side of the mobile vehicle frame (1).

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