Point drawing device for road grouting construction maintenance

Abstract

The utility model relates to the technical field of road maintenance, in particular to a point drawing device for road grouting construction maintenance, which can improve the point drawing efficiency, reduce the point drawing cost, improve the point drawing precision and further improve the grouting precision and attractiveness. Comprising a frame arranged on the ground and provided with four tires; the storage mechanism is fixedly mounted on the frame, and a cavity is formed in the storage mechanism; the discharge valve is arranged on the storage mechanism in a communicating mode, and a valve handle is arranged on the discharge valve and used for controlling discharge of the paint; the point drawing box is arranged on the frame, communicates with the output end of the discharge valve and is used for guiding paint onto the ground; the control assembly is arranged on the frame, connected with the discharge valve and used for controlling opening and closing of the discharge valve; the lifting mechanism is arranged on the frame and used for adjusting the height of the point drawing box; the control assembly further comprises a control supporting rod fixedly installed on the frame. The control handle is installed on the control supporting rod in a swinging mode, and a hinged shaft of the control handle is arranged on the lower middle portion.

Description

Technical Field

[0001] The utility model relates to the technical field of highway maintenance, in particular to a dotting device for highway grouting construction and maintenance. Background Art

[0002] With the accelerated development of the urbanization process, the traffic network is expanding day by day, and the demand for highway maintenance is also increasing. Highway maintenance work not only includes daily cleaning and maintenance, but more importantly, the timely repair of road surface damage to ensure traffic safety and smoothness. Traditional road surface repair methods mostly adopt manual operation, with low efficiency and high cost. Especially in the detailed repair work such as dotting on the road surface, due to the need to precisely control the discharge amount and position of materials, the traditional method often fails to meet the requirements of high speed and efficiency.

[0003] In order to overcome the deficiencies of traditional road surface repair methods and improve the repair efficiency and dotting accuracy, some automated road surface repair devices have gradually emerged in the market. However, there are still some deficiencies in the dotting function of existing road surface repair devices. Before grouting the road surface, it is necessary to pre-dot and position on the road surface to be repaired. When dotting, it is necessary to continuously dot at a certain interval on the road surface to be repaired, and then drill grouting holes according to the dotting positions to ensure the accuracy and aesthetics of grouting. At the same time, the storage mechanism of some devices is complex in design, inconvenient to operate, and the dotting cost is relatively high after the existing road surface repair device is started. Summary of the Utility Model

[0004] To solve the above technical problems, the utility model provides a dotting device for highway grouting construction and maintenance, which can improve the dotting efficiency, reduce the dotting cost, improve the dotting accuracy, and further improve the accuracy and aesthetics of grouting.

[0005] The dotting device for highway grouting construction and maintenance of the utility model includes:

[0006] A frame, arranged on the ground, and four tires are arranged on the frame;

[0007] A storage mechanism, fixedly installed on the frame, with a cavity inside;

[0008] A discharge valve, communicatively connected to the storage mechanism, and a valve handle is arranged on the discharge valve for controlling the discharge of paint;

[0009] A dotting box, arranged on the frame and communicatively connected to the output end of the discharge valve for guiding the paint onto the ground;

[0010] A control component, arranged on the frame and connected to the discharge valve for controlling the opening and closing of the discharge valve;

[0011] A lifting mechanism, arranged on the frame for adjusting the height of the dotting box;

[0012] The control component further includes:

[0013] A control rod, fixedly installed on the vehicle frame;

[0014] A control handle, swingably installed on the control rod, and the hinge shaft of the control handle is arranged in the middle and lower part;

[0015] A linkage rod, arranged between the control handle and the discharge valve, and two sets of spherical hinge blocks are rotatably inserted at both ends of the linkage rod. One of the spherical hinge blocks is connected to the bottom end of the control handle by a spherical connection, and the other spherical hinge block is connected to the valve stem of the discharge valve by a spherical connection.

[0016] For the dotting device used in highway grouting construction and maintenance of the present utility model, the vehicle frame further includes:

[0017] A laser rangefinder, fixedly installed on the vehicle frame, and used for measuring the moving distance of the vehicle frame in real time;

[0018] A sound promptor, fixedly installed on the laser rangefinder and electrically connected to the laser rangefinder, and used for receiving the ranging information of the laser rangefinder and giving a prompt.

[0019] For the dotting device used in highway grouting construction and maintenance of the present utility model, the storage mechanism further includes:

[0020] An electronic liquid level gauge, fixedly installed on the side wall of the storage mechanism.

[0021] For the dotting device used in highway grouting construction and maintenance of the present utility model, the storage mechanism further includes;

[0022] A stirring rod, fixedly installed on the vehicle frame;

[0023] A stirring handle, swingably installed on the stirring rod, and the hinge shaft of the stirring handle is arranged in the middle and lower part of itself;

[0024] A transmission rod, hinged to the bottom end of the stirring handle;

[0025] A driving plate, swingably installed on the inner side wall of the storage mechanism, the hinge shaft of the driving plate is arranged in the middle, and the top end of the driving plate is hinged to the transmission rod;

[0026] A driven plate, swingably installed on the inner side wall of the storage mechanism, and the hinge shaft of the driven plate is arranged at its top end;

[0027] Stirring blades, arranged between the driving plate and the driven plate, and both ends of the stirring blades are fixedly connected to the bottom ends of the driving plate and the driven plate respectively.

[0028] For the dotting device used in highway grouting construction and maintenance of the present utility model, the lifting mechanism further includes:

[0029] A guide sliding support, fixedly installed on the vehicle frame;

[0030] A threaded rod is rotatably installed in the guide and slide support.

[0031] A motor is fixedly installed at the top of the guide and slide support and is used to control the rotation of the threaded rod.

[0032] A lifting slider is slidably arranged in the guide and slide support, and the lifting slider is threadedly sleeved on the threaded rod.

[0033] A lifting mounting seat is fixedly connected to the lifting slider, and the lifting mounting seat is used to fix the dotting box.

[0034] For the dotting device for highway grouting construction and maintenance of the present utility model, the lifting mechanism further includes:

[0035] Two balance support plates are symmetrically arranged on the lifting mounting seat.

[0036] A plurality of rollers are all rotatably installed on the two balance support plates.

[0037] For the dotting device for highway grouting construction and maintenance of the present utility model, the vehicle frame further includes:

[0038] A bellows is fixedly installed on the vehicle frame. An air inlet is arranged at the top of the bellows, and an air outlet is arranged at the bottom.

[0039] A fan is rotatably arranged inside the bellows.

[0040] An exhaust pipe is connected and installed at the air outlet of the bellows.

[0041] For the dotting device for highway grouting construction and maintenance of the present utility model, an air inlet protection plate is fixedly installed on the air inlet at the top of the bellows.

[0042] For the dotting device for highway grouting construction and maintenance of the present utility model, the vehicle frame further includes:

[0043] Two irradiation lamps are both fixedly installed on the vehicle frame.

[0044] For the dotting device for highway grouting construction and maintenance of the present utility model, a protection net is arranged on the irradiation lamp.

[0045] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0046] By controlling the swing of the control handle to remotely control the opening and closing of the discharge valve, the automatic control of the dotting operation is realized. The lifting mechanism allows the height of the dotting box to be flexibly adjusted according to actual needs to ensure that the dotting operation is carried out at the correct position. The control component can accurately transmit the operator's actions to the discharge valve to achieve precise control, improve the dotting efficiency and accuracy, and reduce the dotting cost. Description of the Drawings

[0047] The present utility model will be further described below in conjunction with the accompanying drawings.

[0048] Figure 1 is a schematic structural diagram of the present utility model;

[0049] Figure 2 is a schematic structural diagram of the agitator blade installation;

[0050] Figure 3 is a schematic structural diagram of the control component connection;

[0051] Figure 4 is a schematic enlarged structure diagram of the air box;

[0052] Figure 5 is a schematic sectional structure diagram of the air box;

[0053] Figure 6 is a schematic enlarged structure diagram of the irradiation lamp;

[0054] Reference numerals in the drawings: 1, vehicle frame; 11, air box; 12, fan; 13, exhaust pipe; 14, air intake protection plate; 15, laser rangefinder; 16, sound reminder; 17, irradiation lamp; 18, protective net; 2, material storage mechanism; 21, discharge valve; 22, delivery pipe; 23, connecting hose; 24, dotting box; 25, electronic liquid level gauge; 2a, stirring support rod; 2b, stirring handle; 2c, transmission rod; 2d, driving plate; 2e, driven plate; 2f, agitator blade; 3, control component; 31, control support rod; 32, control handle; 33, linkage rod; 34, spherical hinge block; 4, lifting mechanism; 41, guide sliding support; 42, threaded rod; 43, motor; 44, lifting slider; 45, lifting mounting seat; 46, balance support plate; 47, roller. Detailed implementation manners

[0055] The following will further describe in detail the specific implementation manners of the present utility model in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present utility model but are not intended to limit the scope of the present utility model.

[0056] As Figures 1 to 5 shown, a dotting device for highway grouting construction and maintenance of the present utility model includes:

[0057] A vehicle frame 1, arranged on the ground, and four tires are arranged on the vehicle frame 1;

[0058] A material storage mechanism 2, fixedly installed on the vehicle frame 1, and having a cavity inside;

[0059] A discharge valve 21, communicatively arranged on the material storage mechanism 2, and a valve handle is arranged on the discharge valve 21 for controlling the discharge of paint; the output end of the discharge valve 21 is communicatively arranged with a delivery pipe 22, and the output end of the delivery pipe 22 is communicatively arranged with a connecting hose 23;

[0060] The dot painting box 24 is arranged on the vehicle frame 1 and communicated with the output end of the discharge valve 21 for introducing paint onto the ground;

[0061] The control component 3 is arranged on the vehicle frame 1 and connected to the discharge valve 21 for controlling the opening and closing of the discharge valve 21;

[0062] The lifting mechanism 4 is arranged on the vehicle frame 1 for adjusting the height of the dot painting box 24;

[0063] Wherein the control component 3 further includes:

[0064] The control rod 31 is fixedly installed on the vehicle frame 1;

[0065] The control handle 32 is swingably installed on the control rod 31, and the hinge axis of the control handle 32 is arranged in the middle and lower part;

[0066] The linkage rod 33 is arranged between the control handle 32 and the discharge valve 21. Two sets of ball hinge blocks 34 are rotatably inserted at both ends of the linkage rod 33. One of the ball hinge blocks 34 is ball-connected to the bottom end of the control handle 32, and the other ball hinge block 34 is ball-connected to the valve stem of the discharge valve 21;

[0067] The working process and principle of the device are as follows: The device is placed on the road that needs to be repaired and dot-painted. The vehicle frame 1 is stably supported on the ground by four tires; The storage mechanism 2 is filled with an appropriate amount of paint for subsequent dot-painting operations; The lifting mechanism 4 adjusts the height of the dot painting box 24 in advance according to actual needs to ensure that the dot-painting operation is carried out at the correct position; The operator controls the start and end of the dot-painting operation by swinging the control handle 32 installed on the control rod 31; When dot-painting is required, the operator swings the control handle 32 forward. Since the hinge axis of the control handle 32 is arranged in the middle and lower part, this action is transmitted to the valve stem of the discharge valve 21 through the linkage rod 33; Both ends of the linkage rod 33 are respectively connected to the control handle 32 and the valve stem of the discharge valve 21 through ball hinge blocks 34 to form a flexible transmission system; When the control handle 32 swings, the linkage rod 33 rotates accordingly, thereby driving the valve stem of the discharge valve 21 to open, allowing the paint to flow out from the storage mechanism 2; After passing through the discharge valve 21, the paint enters the delivery pipe 22, then passes through the connecting hose 23, and finally flows into the dot painting box 24; The dot painting box 24 evenly coats the paint on the ground to form the required dots; When the dot-painting is completed, the operator swings the control handle 32 backward to close the discharge valve 21 through the linkage rod 33 and stop the paint discharge; It can improve the dot-painting efficiency, reduce the dot-painting cost, improve the dot-painting accuracy, and thus improve the accuracy and aesthetics of grouting.

[0068] As Figure 1 shown, the vehicle frame further includes:

[0069] A laser rangefinder, fixedly installed on the vehicle frame, is used to measure the moving distance of the vehicle frame in real time;

[0070] A sound reminder, fixedly installed on the laser rangefinder and electrically connected to the laser rangefinder, is used to receive the ranging information of the laser rangefinder and give reminders;

[0071] When the vehicle frame moves on the road for road surface repair, the laser rangefinder continuously emits laser light and receives the reflected signal, thereby calculating the moving distance of the vehicle frame; the distance information calculated by the laser rangefinder is transmitted to the sound reminder in real time; according to the received ranging information, the sound reminder gives a sound reminder every certain distance according to the preset reminder distance, sending a sound signal to the operator to indicate that the vehicle frame has moved a specific distance. The operator controls the dotting according to the reminder, improving the accuracy and efficiency of road surface repair; by precisely controlling the position and spacing of the paint release of the dotting box, a series of evenly distributed and precisely aligned dot-like marks can be ensured to be formed on the road surface; these marks provide clear guidance for the subsequent grouting work, enabling the grouting holes to be accurately positioned at the preset positions, thus greatly improving the accuracy of grouting; precise dotting positioning not only helps to accurately open the grouting holes, but also ensures that the grouting material can be evenly distributed in the road surface damage area; it helps to achieve a more uniform repair effect and reduce problems such as road surface unevenness or poor repair effect caused by uneven grouting.

[0072] The storage mechanism 2 further includes:

[0073] An electronic liquid level gauge 25, fixedly installed on the side wall of the storage mechanism 2; the sensor of the electronic liquid level gauge 25 can sense and measure the liquid level height of the dotting material in real time; the operator can observe the electronic liquid level gauge 25 to understand the remaining amount of the dotting material inside the storage mechanism 2 in real time and replenish the dotting material in time when the liquid level drops to the preset threshold, thus ensuring the continuity and stability of the dotting operation.

[0074] As Figures 1 to 2 shown, the storage mechanism 2 further includes;

[0075] Stirring support rods 2a, fixedly installed on the vehicle frame 1;

[0076] Stirring handles 2b, swingably installed on the stirring support rods 2a, and the hinge shaft of the stirring handles 2b is arranged in the middle and lower part of itself;

[0077] Drive rods 2c, hinged to the bottom ends of the stirring handles 2b;

[0078] The driving plate 2d is swing-mounted on the inner side wall of the material storage mechanism 2. The hinge shaft of the driving plate 2d is arranged in the middle. The top end of the driving plate 2d is hinged to the transmission rod 2c. A swing groove is provided at the top end of the material storage mechanism 2. The upper half of the driving plate 2d is swing-mounted in the swing groove, and the top end of the driving plate 2d is arranged outside the material storage mechanism 2.

[0079] The driven plate 2e is swing-mounted on the inner side wall of the material storage mechanism 2. The hinge shaft of the driven plate 2e is arranged at its top end. The driven plate 2e is mounted on the opposite surface of the mounting surface of the driving plate 2d, and the hinge shaft of the driven plate 2e and the hinge shaft of the driving plate 2d are on the same axis.

[0080] The stirring blade 2f is arranged between the driving plate 2d and the driven plate 2e, and both ends of the stirring blade 2f are fixedly connected to the bottom ends of the driving plate 2d and the driven plate 2e respectively.

[0081] The working process and principle of the material storage mechanism 2 are as follows: The operator pushes and pulls the stirring handle 2b. Since the hinge shaft of the stirring handle 2b is arranged in the middle and lower part, the swing of the handle will drive the swing of the transmission rod 2c. The swinging transmission rod 2c will push the top end of the driving plate 2d. Since the hinge shaft of the driving plate 2d is arranged in the middle, the driving plate 2d will swing around its hinge shaft, the upper half moves in the swing groove, and at the same time the bottom end of the driving plate 2d moves. With the swing of the driving plate 2d, with the assistance of the driven plate 2e, the stirring blade 2f fixed to the bottom end of the driving plate 2d will also move accordingly. By applying force by the operator to achieve the swing of the stirring handle, and then through the transmission mechanism and the swing mechanism to achieve the reciprocating swing of the stirring blade, the purpose of uniformly stirring the painting material is achieved, improving the uniformity and fluidity of the painting material, and also being beneficial to subsequent discharging and painting operations, improving the overall performance and efficiency of the road surface repair device.

[0082] As Figure 3 shown, the lifting mechanism 4 further includes:

[0083] The guide sliding support 41 is fixedly mounted on the vehicle frame 1.

[0084] The threaded rod 42 is rotatably mounted in the guide sliding support 41.

[0085] The motor 43 is fixedly mounted on the top end of the guide sliding support 41 and is used to control the rotation of the threaded rod 42.

[0086] The lifting slider 44 is slidably arranged in the guide sliding support 41, and the lifting slider 44 is threadedly sleeved on the threaded rod 42.

[0087] The lifting mounting base 45 is fixedly connected to the lifting slider 44, and the lifting mounting base 45 is used to fix the dotting box 24. The working process and principle of the lifting mechanism 4 are as follows: When it is necessary to adjust the height of the dotting box 24, the motor 43 is started; the output shaft of the motor 43 starts to rotate, driving the threaded rod 42 to rotate in the guide support 41; since the lifting slider 44 is threadedly sleeved on the threaded rod 42 and the lifting slider 44 is slidably matched with the guide support 41, when the threaded rod 42 rotates, the lifting slider 44 will move along the axial direction of the threaded rod 42; the moving direction of the lifting slider 44 depends on the rotation direction of the threaded rod 42, that is, the forward and reverse rotation control of the motor 43; as the lifting slider 44 moves, the lifting mounting base 45 fixedly connected to the lifting slider 44 also moves; the dotting box 24 is lifted or lowered through the lifting mounting base 45, thereby realizing the adjustment of the height of the dotting box 24; when the dotting box 24 reaches the required height, the rotation of the motor 43 is stopped; the lifting mechanism 4 allows the height of the dotting box 24 to be flexibly adjusted according to actual needs, ensuring that the dotting operation is carried out at the correct position and improving the dotting accuracy.

[0088] The lifting mechanism 4 further includes:

[0089] Two balance support plates 46, symmetrically arranged on the lifting mounting base 45;

[0090] A plurality of rollers 47, all rotatably mounted on the two balance support plates 46; the rolling direction of the rollers 47 is the same as the rolling direction of the tires of the vehicle frame 1; the main function of the balance support plates 46 is to provide additional support area and stability. When the dotting box 24 reaches the required height, the rollers 47 support on the ground. Since the dotting operation is carried out while moving, the dotting box 24 is smoothly translated on the road surface through the rolling rollers 47.

[0091] As Figures 4 to 5 shown, the vehicle frame 1 further includes:

[0092] An air box 11, fixedly installed on the vehicle frame 1. The top end of the air box 11 is provided with an air inlet, and the bottom end is provided with an air outlet;

[0093] A fan 12, rotatably arranged inside the air box 11;

[0094] An exhaust pipe 13, connected and installed on the air outlet of the air box 11; the output end of the exhaust pipe 13 faces the forward direction of the vehicle frame 1;

[0095] When the vehicle frame 1 starts to move and the cleaning function needs to be activated, the fan 12 starts to rotate; the rotation of the fan 12 generates suction, sucking in external air through the air inlet at the top of the air box 11, and the air is discharged through the air outlet at the bottom of the air box 11 and guided in the advancing direction of the vehicle frame 1 through the exhaust pipe 13; the design of the exhaust pipe 13 makes its output end face the advancing direction of the vehicle frame 1. When the vehicle frame 1 moves, it blows the cleaned air flow towards the road surface, helping to remove impurities such as dust and debris on the road surface; as the vehicle frame 1 continues to move, the fan 12 continuously sucks in and discharges air, forming a continuous air flow, thereby continuously cleaning the road surface. Cleaning the road surface helps the paint to adhere better to the ground and prevents the paint from peeling off.

[0096] An air inlet protection plate 14 is fixedly installed on the air inlet at the top of the air box 11; when the fan 12 starts to rotate, it generates negative pressure inside the air box 11, thereby attracting external air to enter the air box through the air inlet; the main function of the air inlet protection plate 14 is to prevent external debris from entering the air box, affecting the normal operation of the fan or causing blockage, ensuring that the fan 12 can operate normally and generate a stable air flow for highway maintenance work.

[0097] As Figure 1 and Figure 6 shown, the vehicle frame 1 further includes:

[0098] Two irradiation lamps 17, both fixedly installed on the vehicle frame 1; the two irradiation lamps 17 are arranged at the front end of the vehicle frame 1 for irradiating the construction area ahead.

[0099] The irradiation lamp 17 is installed at the front end of the vehicle frame 1 and can illuminate the road surface ahead during night construction, helping the operator to see the construction area more clearly, thereby performing more precise operations, improving construction efficiency, and reducing operation errors caused by unclear vision.

[0100] A protective net 18 is provided on the irradiation lamp 17; the protective net 18 is fixedly installed on the irradiation lamp 17 and can prevent external objects from directly hitting the irradiation lamp, thereby protecting the glass cover of the irradiation lamp from being damaged; preventing debris from splashing due to vibration or other reasons during construction and causing damage to the irradiation lamp.

[0101] For the dotting device for highway grouting construction and maintenance of the present utility model, its installation method, connection method or setting method are all common mechanical methods, and any implementation that can achieve its beneficial effects can be carried out.

[0102] The above is only the preferred embodiment of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present utility model, several improvements and modifications can still be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A dotting device for highway grouting construction maintenance, characterized in that, Including: A frame, set on the ground, with four tires arranged on the frame; A material storage mechanism, fixedly installed on the frame, with a cavity inside; A discharge valve, communicatively installed on the material storage mechanism, with a valve handle arranged on the discharge valve for controlling the discharge of paint; A dot painting box, arranged on the frame and communicatively connected to the output end of the discharge valve for introducing paint onto the ground; A control component, arranged on the frame and connected to the discharge valve for controlling the opening and closing of the discharge valve; A lifting mechanism, arranged on the frame for adjusting the height of the dot painting box; Wherein the control component further includes: A control support rod, fixedly installed on the frame; A control handle, swingably installed on the control support rod, with the hinge axis of the control handle arranged in the middle and lower part; A linkage rod, arranged between the control handle and the discharge valve, with two sets of spherical hinge blocks rotatably inserted at both ends of the linkage rod, one of the spherical hinge blocks being ball-connected to the bottom end of the control handle and the other spherical hinge block being ball-connected to the valve handle of the discharge valve.

2. The dotting device for highway grouting construction maintenance according to claim 1, characterized in that, The frame further includes: A laser rangefinder, fixedly installed on the frame for real-time measurement of the moving distance of the frame; A sound prompt, fixedly installed on the laser rangefinder and electrically connected to the laser rangefinder for receiving the ranging information of the laser rangefinder and giving a prompt.

3. The dotting device for highway grouting construction maintenance according to claim 1, characterized in that, The material storage mechanism further includes: An electronic liquid level gauge, fixedly installed on the side wall of the material storage mechanism.

4. The dotting device for highway grouting construction maintenance according to claim 1, characterized in that The material storage mechanism further includes; A stirring support rod, fixedly installed on the frame; A stirring handle, swingably installed on the stirring support rod, and the hinge axis of the stirring handle is arranged in the middle and lower part of itself; A transmission rod, hinged to the bottom end of the stirring handle; A driving plate, swingably installed on the inner side wall of the material storage mechanism, with the hinge axis of the driving plate arranged in the middle, and the top end of the driving plate being hinged to the transmission rod; A driven plate, swingably installed on the inner side wall of the material storage mechanism, with the hinge axis of the driven plate arranged at its top end; Stirring blades, arranged between the driving plate and the driven plate, and both ends of the stirring blades are fixedly connected to the bottom ends of the driving plate and the driven plate respectively.

5. The dotting device for highway grouting construction maintenance according to claim 1, characterized in that, The lifting mechanism further includes: A guiding and sliding support, fixedly installed on the frame; A threaded rod, rotatably installed in the guiding and sliding support; A motor, fixedly installed on the top end of the guiding and sliding support for controlling the rotation of the threaded rod; A lifting slider, slidably arranged in the guiding and sliding support, and the lifting slider is threadedly sleeved on the threaded rod; A lifting mounting seat, fixedly connected to the lifting slider, and the lifting mounting seat is used for fixing the dot painting box.

6. The dotting device for highway grouting construction maintenance according to claim 5, characterized in that, The lifting mechanism further includes: Two balance support plates, symmetrically arranged on the lifting mounting seat; A plurality of rollers, all rotatably installed on the two balance support plates.

7. The dotting device for highway grouting construction maintenance according to claim 1, characterized in that, The frame further includes: A bellows, fixedly installed on the frame, with an air inlet arranged at the top end of the bellows and an air outlet arranged at the bottom end; A fan, rotatably arranged inside the bellows; An exhaust pipe, communicatively installed on the air outlet of the bellows.

8. The dotting device for highway grouting construction maintenance according to claim 7, characterized in that, An air inlet protection plate is fixedly installed on the air inlet at the top end of the bellows.

9. The dotting device for highway grouting construction maintenance according to claim 1, wherein, The frame further includes: Two irradiation lamps, both fixedly installed on the frame.

10. The dotting device for highway grouting construction maintenance according to claim 9, characterized in that, A protection net is arranged on the irradiation lamp.

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