Roadway reconstruction pavement cutting device

Abstract

The application relates to the technical field of road reconstruction, and discloses a road surface cutting device for road reconstruction, which comprises a pushing box, a pushing frame is fixedly connected to the left side of the pushing box, an adjusting box is fixedly connected to the right side of the pushing box, a protective cover is slidably connected to the inner wall of the adjusting box, an extension mechanism comprises an extender, the extender is fixedly connected to the two sides of the protective cover, an extension pad is fixedly connected to the bottom of the extender, a cleaning assembly comprises a feeding seat, the feeding seat is fixedly connected to the bottom of the extension pad, sealing rings are rotationally connected to the two side groove holes of the feeding seat, and support discs are fixedly connected to the inner walls of the sealing rings. Through the extension mechanism, the residual asphalt debris that is not shovelled into the feeding seat is shovelled into the interior through the shovelling disc, full-automatic collection of cutting debris is realized, manual secondary cleaning is not needed, manpower cost is saved, the collection efficiency of asphalt recycled materials is improved, the construction road surface is kept clean, and a smooth base is provided for subsequent paving.

Description

Technical Field

[0001] This invention relates to the field of road reconstruction technology, specifically to a road surface cutting device for road reconstruction. Background Technology

[0002] Due to factors such as overloading, construction, and maintenance, asphalt pavements often need to be renovated before reaching their designed lifespan. Before repaving the asphalt road, it is necessary to recycle the existing pavement to obtain asphalt pavement recycled material. This is not only for the convenience of renovation and paving, but also for environmental protection and resource recycling. During pavement recycling, the existing asphalt pavement needs to be broken down into numerous small sections, which are then collected and recycled for further processing.

[0003] Patent application CN202220816572.7 discloses a road surface cutting device for road reconstruction, including a trolley and a power unit fixedly installed on the trolley. A bearing seat is provided on one side of the trolley, and a sleeve is rotatably installed in the bearing seat. One end of the sleeve is connected to a rotating arm. The output shaft of the power unit is connected to a drive shaft through a coupling. The drive shaft is rotatably connected to the rotating arm. The end of the drive shaft extends outside the trolley and is fixedly connected to a first pulley. The end of the rotating arm away from the drive shaft is rotatably connected to a rotating shaft.

[0004] However, this patent also has the following shortcomings: when the device is working on uneven road sections, it lacks an adaptive support structure, and the cutting disc is prone to tilting with the undulations of the road surface, resulting in uneven cutting depth and skewed cuts. Furthermore, there are no effective dust collection and treatment measures during the cutting operation, which can easily spread and pollute the construction environment and endanger the health of construction workers. At the same time, it lacks a debris barrier and protection structure, and debris can easily get stuck on the cutting disc, reducing cutting stability and equipment lifespan. In response to this situation, a road surface cutting device for road reconstruction is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a road surface cutting device for road reconstruction, so as to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a road surface cutting device for road reconstruction, including a push box, a push frame fixedly connected to the left side of the push box, an adjustment box fixedly connected to the right side of the push box, a protective cover slidably connected to the inner wall of the adjustment box, and telescopic mechanisms provided on both sides of the protective cover; The telescopic mechanism includes a telescopic member, which is fixedly connected to both sides of the protective cover. A telescopic pad is fixedly connected to the bottom of the telescopic member, and a cleaning component is provided at the bottom of the telescopic pad. The cleaning component includes: The feeding seat is fixedly connected to the bottom of the telescopic pad. Sealing rings are rotatably connected to the slots on both sides of the feeding seat. A support plate is fixedly connected to the inner wall of the sealing ring. One end of the support plate is fixedly connected to the inner wall of the feeding seat. The feeding seats set on both sides of the road surface will scoop up the accumulated asphalt debris.

[0007] According to the above technical solution, the cleaning component further includes an adjusting arm. One end of the adjusting arm is rotatably connected to the left side of the feed seat via a rotating shaft. An adjusting disc is fixedly connected to the inner wall of the adjusting arm. A shovel disc is rotatably connected to the end of the adjusting arm away from the adjusting disc. A telescopic arm is fixedly connected to the surface of the protective cover. A cutting mechanism is provided at the end of the telescopic arm away from the protective cover. The controller drives the sealing rings on both sides of the feed seat to rotate outward, thereby pulling the support disc inside the feed seat outward.

[0008] According to the above technical solution, the telescopic pad has an electric telescopic function, the support plate has the characteristic of inner and outer stretching, the top of the feeding seat is provided with a feeding groove, and one end of the shovel plate is provided with a shovel groove. At this time, the telescopic device drives the telescopic pad to slide and extend downward, and the feeding seats on both sides of the cutting plate are brought into contact with the asphalt pavement through the telescopic pad.

[0009] According to the above technical solution, the cutting mechanism includes a connecting plate, which is fixedly connected to one end of a telescopic arm. An exhaust box is fixedly connected to the top of the connecting plate, and transmission pipes are fixedly connected to both sides of the exhaust box. A conveying chamber is fixedly connected to the end of the transmission pipe away from the exhaust box. The conveying chamber is fixedly connected to both sides of the connecting plate. A cutting disc is rotatably connected to the inner wall of the connecting plate via a rotating shaft. Dust suppression components are provided at both ends of the conveying chamber. A support mechanism is provided at the end of the connecting plate away from the telescopic arm. The cutting disc inside the connecting plate is rotated by a controller, and the cutting disc cuts the asphalt pavement.

[0010] According to the above technical solution, the dust suppression component includes a bushing body, a limiting ring is slidably connected to the inner wall of the bushing body, a conveying pipe is fixedly connected to the top of the limiting ring, a locking member is fixedly connected to the end of the conveying pipe away from the limiting ring, the locking member is fixedly connected to both sides of the conveying cavity, a contact membrane is fixedly connected to the end of the limiting ring away from the bushing body, and an adsorption tube is fixedly connected to the inner wall of the contact membrane. When the cutting disc cuts the asphalt pavement, the limiting ring is driven to slide on the inner wall of the bushing body by the controller.

[0011] According to the above technical solution, the surface of the contact membrane is provided with an adsorption groove, the inside of the adsorption tube is filled with activated carbon, and the surface of the limiting ring is provided with a discharge groove. The contact membranes on both sides make contact with the dust and debris splashed outward, and the dust is adsorbed into the interior through the adsorption tube on the inner wall of the contact membrane.

[0012] According to the above technical solution, the support mechanism includes a housing, which is fixedly connected to one end of a connecting plate. A connecting seat is fixedly connected to the surface of the housing, and a control valve is fixedly connected to the inner wall of the connecting seat. A telescopic tube is fixedly connected to the bottom of the control valve, and a buffer assembly is provided at the bottom of the telescopic tube. The control valve detects the road surface smoothness in real time through a built-in intelligent sensor and automatically adjusts the telescopic stroke of the telescopic tube.

[0013] According to the above technical solution, the buffer assembly includes a flow channel, which is fixedly connected to the bottom of the telescopic tube. A docking nozzle is fixedly connected to the bottom of the flow channel, and a sealing gasket is fixedly connected to the bottom of the docking nozzle. Fixing plates are fixedly connected to both sides of the inner wall of the docking nozzle, and a flow guiding cavity is fixedly connected to the inner wall of the docking nozzle. A push rod is fixedly connected to the inner wall of the flow guiding cavity. If there is a height deviation between the two docking nozzles, the sensor will provide immediate feedback and accurately adjust the telescopic distance of the corresponding telescopic tube to ensure that the two docking nozzles always remain horizontal.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention, by setting up a cutting mechanism, generates suction inside the exhaust box by activating an internal switch. This suction flows into the conveying chamber through a transmission pipe, and is then transmitted to the outside through the exhaust holes at the bottom of the conveying chamber. The conveying chamber absorbs dust and fine debris from the bottom of the cutting disc, simultaneously sucking them in and collecting them. This prevents dust from spreading and polluting the air, thus protecting the health of construction workers. It also prevents debris from getting stuck on the cutting disc, ensuring the stability of the cutting disc's high-speed rotation and improving the smoothness and accuracy of road cutting.

[0015] 2. This invention, through the provision of a support mechanism, allows the push rod within the guide cavity to laterally push the fixing plate as needed, causing the docking nozzle to slightly extend and retract for fine-tuning, further improving the fit with the road surface. The flexible support and adaptive adjustment of the buffer component effectively counteract the impact of road bumps on the cutting disc, ensuring uniform cutting depth and straight, neat cuts, preventing damage to the cutting disc due to tilting stress, and significantly improving cutting accuracy and equipment lifespan under complex road conditions.

[0016] 3. This invention, by setting up a telescopic mechanism, uses an internal controller of the adjusting disc to drive the adjusting arm to rotate outward, thereby moving the two shovel discs to both sides of the road surface to be cut. The adjusting disc drives the adjusting arm to rotate inward, and at the same time, the shovel discs rotate inward to the surface of the feed seat. The shovel discs then shovel the remaining asphalt debris that has not been shoveled into the feed seat and move it into the interior, achieving fully automatic collection of cutting debris. This eliminates the need for secondary manual cleaning, saves labor costs, improves the collection efficiency of asphalt recycled material, and keeps the construction road surface clean, providing a flat base for subsequent paving.

[0017] 4. This invention, by setting up a dust suppression component, uses an adsorption tube on the inner wall of the contact membrane to adsorb dust into the interior. At the same time, the contact membrane can block and protect against asphalt debris splashing outwards. The suction force inside the conveying chamber can be transferred to the inside of the limiting ring through the conveying pipe. The surface absorption groove of the limiting ring can adsorb asphalt debris splashing outwards into the interior, achieving dual protection of efficient dust adsorption and physical barrier of debris. This avoids dust overflow and environmental pollution, while preventing debris from damaging equipment components, thus improving the environmental friendliness of construction and the durability of the equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partial schematic diagram of the protective cover of the present invention; Figure 3 This is a perspective view of the cutting mechanism of the present invention; Figure 4 This is a perspective view of the dust suppression component of the present invention; Figure 5 This is a perspective view of the support mechanism of the present invention; Figure 6 This is a perspective view of the buffer component of the present invention. Figure 7 This is a perspective view of the telescopic mechanism of the present invention; Figure 8 This is a perspective view of the cleaning component of the present invention.

[0019] In the diagram: 1. Push box; 2. Push frame; 3. Adjustment box; 4. Protective cover; 5. Telescopic arm; 6. Cutting mechanism; 601. Connecting plate; 602. Exhaust box; 603. Transmission pipe; 604. Conveying chamber; 605. Cutting disc; 606. Dust suppression assembly; 6061. Bushing; 6062. Locking element; 6063. Conveying pipe; 6064. Limiting ring; 6065. Contact membrane; 6066. Adsorption pipe; 7. Support mechanism; 701. Housing; 702. Connecting seat 703. Control valve; 704. Telescopic pipe; 705. Buffer assembly; 7051. Diverter channel; 7052. Connecting nozzle; 7053. Sealing gasket; 7054. Fixing plate; 7055. Guide cavity; 7056. Push rod; 8. Telescopic mechanism; 801. Telescopic device; 802. Telescopic pad; 803. Cleaning assembly; 8031. Feed seat; 8032. Sealing ring; 8033. Support plate; 8034. Adjusting arm; 8035. Adjusting disc; 8036. Shovel disc. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, and should not be construed as limiting the invention.

[0022] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0023] Example 1: See Figures 1-4 The present invention provides a technical solution: a road surface cutting device for road reconstruction, including a push box 1, a push frame 2 fixedly connected to the left side of the push box 1, an adjustment box 3 fixedly connected to the right side of the push box 1, a protective cover 4 slidably connected to the inner wall of the adjustment box 3, and telescopic mechanisms 8 provided on both sides of the protective cover 4. The cutting mechanism 6 includes a connecting plate 601, which is fixedly connected to one end of the telescopic arm 5. An exhaust box 602 is fixedly connected to the top of the connecting plate 601. Transmission pipes 603 are fixedly connected to both sides of the exhaust box 602. A conveying chamber 604 is fixedly connected to the end of the transmission pipe 603 away from the exhaust box 602. The conveying chamber 604 is fixedly connected to both sides of the connecting plate 601. A cutting disc 605 is rotatably connected to the inner wall of the connecting plate 601 via a rotating shaft. Dust suppression components 606 are provided at both ends of the conveying chamber 604. A support mechanism 7 is provided at the end of the disc 601 away from the telescopic boom 5, which fixes one end of the tractor to the surface of the push frame 2. The tractor drives the push box 1 to travel on the asphalt road surface. The controller inside the push box 1 drives the protective cover 4 to slide down the inner wall of the adjusting box 3, thereby allowing the connecting disc 601 to move the cutting disc 605 to the surface of the asphalt road surface that needs to be cut. Then, the controller drives the cutting disc 605 inside the connecting disc 601 to rotate, and the cutting disc 605 cuts the asphalt road surface.

[0024] The dust suppression component 606 includes a bushing body 6061, with a limiting ring 6064 slidably connected to the inner wall of the bushing body 6061. A conveying pipe 6063 is fixedly connected to the top of the limiting ring 6064, and a locking element 6062 is fixedly connected to the end of the conveying pipe 6063 away from the limiting ring 6064. During the cutting process, asphalt debris and dust are generated. At this time, by activating the internal switch of the exhaust box 602, the exhaust box 602 generates suction force, which flows into the conveying chamber 604 through the transmission pipe 603. The suction force is transmitted to the outside through the exhaust hole at the bottom of the conveying chamber 604, and the bottom direction of the cutting disc 605 is absorbed by the conveying chamber 604, and the dust and fine debris are simultaneously sucked in and collected, avoiding dust diffusion that pollutes the air and harms the health of construction personnel. At the same time, it prevents debris from getting stuck on the cutting disc 605, ensuring the stability of the high-speed rotation of the cutting disc 605 and improving the flatness and accuracy of road cutting.

[0025] Traditional road cutting devices generate dust and debris that easily gets stuck on the cutting disc during operation, which pollutes the construction environment and affects cutting accuracy and equipment lifespan, making it impossible to achieve dust-free and stable cutting. Therefore, a dust suppression component 606 is required.

[0026] The locking element 6062 is fixedly connected to both sides of the conveying cavity 604. The end of the limiting ring 6064 away from the bushing body 6061 is fixedly connected to a contact membrane 6065. An adsorption tube 6066 is fixedly connected to the inner wall of the contact membrane 6065. When the cutting disc 605 cuts the asphalt pavement, the controller drives the limiting ring 6064 to slide on the inner wall of the bushing body 6061, thereby adjusting the orientation angle of the contact membrane 6065 fixed at one end of the limiting ring 6064. When the dust and debris generated from cutting the asphalt pavement splashes and floats outward, the contact membranes 6065 on both sides come into contact with the dust and debris splashing outward, and the adsorption tube 6066 on the inner wall of the contact membrane 6065 adsorbs the dust into the interior.

[0027] The surface of the contact membrane 6065 is provided with an adsorption groove, the inside of the adsorption tube 6066 is filled with activated carbon, and the surface of the limiting ring 6064 is provided with a discharge groove. At the same time, the contact membrane 6065 can block and protect the asphalt debris splashed outwards. The suction force inside the conveying chamber 604 can be transferred to the inside of the limiting ring 6064 through the conveying pipe 6063. The asphalt debris splashed outwards can be adsorbed into the inside through the adsorption groove on the surface of the limiting ring 6064, realizing dual protection of efficient dust adsorption and physical barrier of debris, avoiding dust overflow and environmental pollution, and preventing debris from damaging equipment parts, thus improving the environmental friendliness of construction and the durability of equipment.

[0028] Example 2: Based on Example 1, please refer to the following... Figures 5-6The present invention provides a technical solution: the support mechanism 7 includes a housing 701, one end of which is fixedly connected to the connecting plate 601. A connecting seat 702 is fixedly connected to the surface of the housing 701, and a control valve 703 is fixedly connected to the inner wall of the connecting seat 702. A telescopic tube 704 is fixedly connected to the bottom of the control valve 703, and a buffer assembly 705 is provided at the bottom of the telescopic tube 704. When the box 1 is pushed to a bumpy road section, the control valve 703 detects the road surface smoothness in real time through a built-in intelligent sensor and automatically adjusts the telescopic stroke of the telescopic tube 704 so that the diversion channel 7051 and the docking nozzle 7052 adaptively fit the road surface. If there is a height deviation between the two docking nozzles 7052, the sensor immediately provides feedback and accurately adjusts the telescopic distance of the corresponding telescopic tube 704 to ensure that the two docking nozzles 7052 always remain horizontal.

[0029] The buffer assembly 705 includes a flow channel 7051, which is fixedly connected to the bottom of the telescopic tube 704. A docking nozzle 7052 is fixedly connected to the bottom of the flow channel 7051, and a sealing gasket 7053 is fixedly connected to the bottom of the docking nozzle 7052. Fixing plates 7054 are fixedly connected to both sides of the inner wall of the docking nozzle 7052, and a guide cavity 7055 is fixedly connected to the inner wall of the docking nozzle 7052. A push rod 7056 is fixedly connected to the inner wall of the guide cavity 7055. Simultaneously, the push rod 7056 within the guide cavity 7055 can laterally push the fixing plates 7054 as needed, causing the docking nozzle 7052 to slightly extend and retract for fine-tuning, further improving its fit with the road surface. Through the flexible support and adaptive adjustment of the buffer assembly 705, the impact of road bumps on the cutting disc 605 is effectively offset, ensuring uniform cutting depth and straight, neat cuts. This prevents damage to the cutting disc 605 due to tilting and stress, significantly improving cutting accuracy and equipment lifespan under complex road conditions.

[0030] When traditional cutting devices travel on uneven roads, the cutting disc tends to tilt with the undulations of the road surface, resulting in uneven cutting depth, skewed cuts, and even damage to the cutting disc. The equipment has poor stability, so a support mechanism 7 is required.

[0031] Example 3: Based on Example 2, please refer to the following... Figures 7-8 The present invention provides a technical solution: the telescopic mechanism 8 includes a telescopic device 801, which is fixedly connected to both sides of the protective cover 4. A telescopic pad 802 is fixedly connected to the bottom of the telescopic device 801, and a cleaning component 803 is provided at the bottom of the telescopic pad 802. When the cutting disc 605 cuts the asphalt pavement, excess asphalt debris will accumulate on both sides of the cut pavement. At this time, the telescopic device 801 drives the telescopic pad 802 to slide downward and extend. The telescopic pad 802 drives the feed seats 8031 ​​on both sides of the cutting disc 605 to come into contact with the asphalt pavement. The cleaning component 803 includes a feeding seat 8031, which is fixedly connected to the bottom of the telescopic pad 802. A sealing ring 8032 is rotatably connected to the slots on both sides of the feeding seat 8031. A support plate 8033 is fixedly connected to the inner wall of the sealing ring 8032. One end of the support plate 8033 is fixedly connected to the inner wall of the feeding seat 8031. The controller drives the sealing rings 8032 on both sides of the feeding seat 8031 ​​to rotate outward, thereby pulling the support plate 8033 inside the feeding seat 8031 ​​outward. When the push box 1 drives the cutting disc 605 to move on the asphalt road surface, the feeding seats 8031 ​​set on both sides of the cutting road surface will scoop up the accumulated asphalt debris.

[0032] The cleaning assembly 803 also includes an adjusting arm 8034. One end of the adjusting arm 8034 is rotatably connected to the left side of the feed seat 8031 ​​via a rotating shaft. An adjusting disc 8035 is fixedly connected to the inner wall of the adjusting arm 8034. A shovel disc 8036 is rotatably connected to the end of the adjusting arm 8034 away from the adjusting disc 8035. A telescopic arm 5 is fixedly connected to the surface of the protective cover 4. A cutting mechanism 6 is provided at the end of the telescopic arm 5 away from the protective cover 4. At the same time, asphalt debris that has not been completely shoveled into the feed seat 8031 ​​will be shoveled a second time by the shovel chamber composed of the sealing ring 8032 and the support disc 8033, thereby shoveling the remaining asphalt debris into the feed seat 8031. Then, the adjusting arm 8034 is rotated outward by the controller inside the adjusting disc 8035, thereby moving the two shovel discs 8036 to the two sides of the road surface to cut. The adjusting arm 8034 is rotated inward by the adjusting disc 8035.

[0033] Traditional cutting operations result in a large accumulation of asphalt debris on both sides of the road surface. Manual cleaning is inefficient, time-consuming, and labor-intensive. The debris residue can also affect the quality of subsequent road surface renovation and paving, and cause waste of asphalt recycling materials. Therefore, it is necessary to install a cleaning component 803.

[0034] The telescopic pad 802 has an electric telescopic function, the support plate 8033 has the characteristics of inward and outward stretching, the top of the feeding seat 8031 ​​is provided with a feeding groove, and one end of the shovel plate 8036 is provided with a shovel groove. At the same time, the shovel plate 8036 rotates inward to the surface of the feeding seat 8031. The shovel plate 8036 shovels the remaining asphalt debris that has not been shoveled into the feeding seat 8031 ​​into the interior, realizing fully automatic collection of cutting debris. No manual secondary cleaning is required, saving labor costs, improving the collection efficiency of asphalt recycled material, and keeping the construction road surface clean, providing a flat base for subsequent paving.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A road surface cutting device for road reconstruction, comprising a push box (1), a push frame (2) fixedly connected to the left side of the push box (1), an adjustment box (3) fixedly connected to the right side of the push box (1), and a protective cover (4) slidably connected to the inner wall of the adjustment box (3), characterized in that, The protective cover (4) is provided with telescopic mechanisms (8) on both sides. The telescopic mechanism (8) includes a telescopic member (801), which is fixedly connected to both sides of the protective cover (4). A telescopic pad (802) is fixedly connected to the bottom of the telescopic member (801), and a cleaning component (803) is provided at the bottom of the telescopic pad (802). The cleaning component (803) includes: The feed seat (8031) is fixedly connected to the bottom of the telescopic pad (802). A sealing ring (8032) is rotatably connected to the slots on both sides of the feed seat (8031). A support plate (8033) is fixedly connected to the inner wall of the sealing ring (8032). One end of the support plate (8033) is fixedly connected to the inner wall of the feed seat (8031). The sealing ring (8032) is used to push the support plate (8033).

2. The road surface cutting device for road reconstruction according to claim 1, characterized in that: The cleaning assembly (803) also includes an adjusting arm (8034), one end of which is rotatably connected to the left side of the feed seat (8031) via a rotating shaft. An adjusting disc (8035) is fixedly connected to the inner wall of the adjusting arm (8034). A shovel disc (8036) is rotatably connected to the end of the adjusting arm (8034) away from the adjusting disc (8035). A telescopic arm (5) is fixedly connected to the surface of the protective cover (4). A cutting mechanism (6) is provided at the end of the telescopic arm (5) away from the protective cover (4). The protective cover (4) is used to move on the inner wall of the adjusting box (3).

3. The road surface cutting device for road reconstruction according to claim 2, characterized in that: The telescopic pad (802) has an electric telescopic function, the support plate (8033) has the characteristic of inner and outer stretching, the top of the feed seat (8031) is provided with a feed groove, one end of the shovel plate (8036) is provided with a shovel groove, and the shovel plate (8036) is used to shovel the cutting waste.

4. A road surface cutting device for road reconstruction according to claim 2, characterized in that: The cutting mechanism (6) includes a connecting plate (601), which is fixedly connected to one end of the telescopic arm (5). An exhaust box (602) is fixedly connected to the top of the connecting plate (601), and transmission pipes (603) are fixedly connected to both sides of the exhaust box (602). A conveying chamber (604) is fixedly connected to one end of the transmission pipe (603) away from the exhaust box (602). The conveying chamber (604) is fixedly connected to both sides of the connecting plate (601). A cutting disc (605) is rotatably connected to the inner wall of the connecting plate (601) via a rotating shaft. Dust suppression components (606) are provided at both ends of the conveying chamber (604). A support mechanism (7) is provided at one end of the connecting plate (601) away from the telescopic arm (5). The cutting disc (605) is used to cut asphalt pavement.

5. A road surface cutting device for road reconstruction according to claim 4, characterized in that: The dust suppression assembly (606) includes a bushing body (6061), a limiting ring (6064) is slidably connected to the inner wall of the bushing body (6061), a conveying pipe (6063) is fixedly connected to the top of the limiting ring (6064), a locking member (6062) is fixedly connected to the end of the conveying pipe (6063) away from the limiting ring (6064), the locking member (6062) is fixedly connected to both sides of the conveying chamber (604), a contact membrane (6065) is fixedly connected to the end of the limiting ring (6064) away from the bushing body (6061), an adsorption tube (6066) is fixedly connected to the inner wall of the contact membrane (6065), and the adsorption tube (6066) is used to adsorb dust.

6. A road surface cutting device for road reconstruction according to claim 5, characterized in that: The surface of the contact membrane (6065) is provided with an adsorption groove, the inside of the adsorption tube (6066) is filled with activated carbon, the surface of the limiting ring (6064) is provided with a discharge groove, and the contact membrane (6065) is used to contact the cutting debris.

7. A road surface cutting device for road reconstruction according to claim 4, characterized in that: The support mechanism (7) includes a housing (701), one end of which is fixedly connected to a connecting plate (601). A connecting seat (702) is fixedly connected to the surface of the housing (701). A control valve (703) is fixedly connected to the inner wall of the connecting seat (702). A telescopic tube (704) is fixedly connected to the bottom of the control valve (703). A buffer assembly (705) is provided at the bottom of the telescopic tube (704). The control valve (703) is used to drive the telescopic tube (704) to slide and extend to the bottom.

8. A road surface cutting device for road reconstruction according to claim 7, characterized in that: The buffer assembly (705) includes a flow channel (7051), which is fixedly connected to the bottom of the telescopic tube (704). A docking nozzle (7052) is fixedly connected to the bottom of the flow channel (7051), and a sealing gasket (7053) is fixedly connected to the bottom of the docking nozzle (7052). Fixing plates (7054) are fixedly connected to both sides of the inner wall of the docking nozzle (7052). A flow guiding cavity (7055) is fixedly connected to the inner wall of the docking nozzle (7052), and a push rod (7056) is fixedly connected to the inner wall of the flow guiding cavity (7055). One end of the push rod (7056) away from the flow guiding cavity (7055) is fixedly connected to the top of the fixing plate (7054).

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