Joint cutting device for highway construction

Abstract

The invention belongs to the technical field of highway construction, and particularly relates to a joint cutting device for highway construction. Comprising a moving device, a driving device and a dust falling device are arranged on the inner side of the moving device, a cutting device is arranged at the movable end of the driving device, the driving device comprises a driving box, a built-in motor is fixedly installed on the inner wall of the driving box, and a screw rod is fixedly installed on an output shaft of the built-in motor; and the surface of the screw rod is in threaded connection with a nut seat. According to the cutting device, the screw rod can be effectively driven to rotate through the driving device by utilizing a built-in motor on the inner side of the driving box, so that the nut seat is driven to move along the screw rod, and the cutting device can realize accurate transverse movement by virtue of transverse movement of the nut seat; and the cutting device can more accurately carry out road joint cutting operation, so that the construction accuracy and efficiency are improved.

Description

Technical Field

[0001] The invention relates to the technical field of highway construction, in particular to a slotting device for highway construction. Background Art

[0002] During road construction, after the paved cement has dried, it is necessary to cut the joints. Due to the principle of thermal expansion and contraction, cement will also expand and contract, which will cause the cement structure to be damaged and affect the life of the road surface. Therefore, expansion joints are needed to ensure the expansion and contraction margin of the cement.

[0003] A seam cutter is a common construction tool in pavement construction. It is mainly used to cut expansion joints horizontally on newly paved cement pavements.

[0004] When existing cutting equipment cuts paved roads, it will generate a large amount of dust and fine gravel during the cutting process. The flying gravel can easily ricochet onto the construction workers and cause injuries. The dust will directly diffuse in the air and can be easily inhaled by the construction workers, affecting the entire air environment and the health of the construction workers.

[0005] Therefore we proposed a highway construction cutting device to solve the above problems. Summary of the Invention

[0006] Technical problems solved In view of the shortcomings of the existing technology, the present invention provides a cutting device for highway construction, which solves the xx problem raised in the above background technology.

[0007] (2) Technical solution In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions: A cutting device for highway construction, comprising a moving device, a driving device and a dust suppression device provided on the inner side of the moving device, and a cutting device provided on the movable end of the driving device; The driving device includes a driving box, an inner wall of which is fixedly mounted a built-in motor, an output shaft of which is fixedly mounted a screw, and a surface of which is threadedly connected to a nut seat; The cutting device includes a connecting platform, a hydraulic telescopic rod is fixedly installed on the top of the connecting platform, the movable end of the hydraulic telescopic rod passes through the connecting platform and is fixedly installed on a lifting frame, the bottom end of the lifting frame is rotatably connected to a hinged rod, the back side of the lifting frame is rotatably connected to an electric push rod, the back side of the hinged rod is rotatably connected to a rotating pin, the movable end of the electric push rod is movably plugged into the inner wall of the rotating pin, a cutting motor is fixedly installed on the back side of the hinged rod, the output shaft of the cutting motor passes through the hinged rod and is fixedly installed with a cutting wheel, a sleeve shell is fixedly installed on the front side of the hinged rod, and the cutting wheel is located on the inner side of the sleeve shell; The dust reduction device includes a liquid storage tank and an installation arc plate. The top of the liquid storage tank is movably connected with a top cover. The outside of the liquid storage tank is fixedly installed with a water inlet pipe and a water outlet pump. A dust reduction nozzle is provided below the installation arc plate. The water outlet end of the water outlet pump is connected to the dust reduction nozzle through a connecting hose.

[0008] Furthermore, the mobile device includes a mobile slide rail, the top of the mobile slide rail is slidably connected to a mobile platform through a locking pin, the top of the mobile platform is movably connected to a protective cover shell, and a power supply device and a control panel are provided on the outside of the protective cover shell.

[0009] Furthermore, movable wheels are provided at the corners of the bottom end of the movable slide rail, and a push handle is fixedly installed at the back end of the movable slide rail.

[0010] Furthermore, a through opening is opened inside the movable platform, and the cutting wheel is located inside the through opening.

[0011] Furthermore, the side end of the driving box is fixedly connected to the top end of the moving device through a side frame, and an inspection cover is movably connected to the opening of the driving box.

[0012] Furthermore, a transverse groove is provided at the bottom end of the driving box, and the end of the nut seat away from the screw rod passes through the transverse groove and is fixedly connected to the back side of the connecting platform.

[0013] Furthermore, a follower rod is slidably connected to the inner side of the connecting platform, and the bottom end of the follower rod is fixedly connected to the top end of the lifting frame.

[0014] Furthermore, a semiconductor refrigerator is fixedly installed on the outside of the liquid storage tank, the cold end of the semiconductor refrigerator extends to the inside of the liquid storage tank, and the hot end of the semiconductor refrigerator is located on the outside of the liquid storage tank and is provided with a water-cooled radiator.

[0015] Furthermore, an external connecting plate is fixedly installed on the outside of the liquid storage tank, and the bottom end of the water cooling radiator is overlapped with the top end of the external connecting plate. Furthermore, a mounting notch is provided at the top of the sleeve shell, and the mounting arc plate is movably engaged with the mounting notch.

[0016] (3) Beneficial effects Compared with the prior art, the present invention provides a slitting device for highway construction, which has the following beneficial effects: The present invention, through a driving device, utilizes the built-in motor inside the driving box to effectively drive the screw to rotate, thereby prompting the nut seat to move along the screw, so that the cutting device can achieve precise lateral movement with the help of the lateral movement of the nut seat. Driven by the driving device, the cutting device can perform highway cutting operations more accurately, thereby improving the accuracy and efficiency of construction.

[0017] The present invention, through the cutting device, can realize the precise control of the lifting frame through the hydraulic telescopic rod connected to the top of the table, thereby driving the cutting wheel to adjust the height, and then cooperating with the electric push rod to flexibly drive the cutting wheel to adjust the angle through the rotating pin, so that the cutting wheel can be dynamically adjusted according to the specific needs of the cutting seam, ensuring that the cutting device can adjust the cutting depth according to different usage requirements. Therefore, no matter what kind of construction requirements, the cutting device can respond flexibly, thereby improving the practicality and flexibility of the device, so that it can perform excellently in various complex working environments.

[0018] The present invention uses a dust reduction device and a water outlet pump to deliver the water in the liquid storage tank into the dust reduction nozzle through a connecting hose, and then cooperates with the dust reduction nozzle to spray the water at high pressure. Dust is processed in the form of water spraying and dust reduction, and impurities such as stones washed on the road surface are cleaned, thereby reducing the impact of dust in the environment on workers and ensuring that the road surface is neat and clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of a slitting device for highway construction according to the present invention; Figure 2 This is a schematic structural diagram of a slitting device for highway construction according to the present invention; Figure 3 This is a schematic diagram of a moving device of a slitting device for highway construction according to the present invention; Figure 4 This is a schematic diagram of a driving device of a slitting device for highway construction according to the present invention; Figure 5 This is a schematic diagram of a moving device of a slitting device for highway construction according to the present invention; Figure 6 This is a schematic diagram of a driving device of a slitting device for highway construction according to the present invention; Figure 7 The figure is a schematic diagram of a moving device of a slitting device for highway construction according to the present invention.

[0020] In the figure: 1. Moving device; 101. Moving slide rail; 102. Moving platform; 103. Locking pin; 104. Protective cover; 105. Moving wheel; 106. Push handle; 2. Driving device; 201. Driving box; 202. Side frame; 203. Inspection cover; 204. Built-in motor; 205. Screw; 206. Nut seat; 3. Cutting device; 301. Connecting table; 302. Hydraulic telescopic rod; 303. Lifting frame; 304. Follower rod; 305. Articulated Rod; 306, electric push rod; 307, rotating pin; 308, cutting motor; 309, cutting wheel; 310, socket shell; 311, installation notch; 4, dust suppression device; 401, liquid storage tank; 402, top cover; 403, water inlet pipe; 404, semiconductor refrigerator; 405, water-cooled radiator; 406, external board; 407, water outlet pump; 408, connecting hose; 409, installation arc plate; 410, dust suppression nozzle; 5, power supply equipment; 6, control panel. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example like Figure 1-7 As shown, a cutting device for highway construction proposed in one embodiment of the present invention includes a moving device 1, a driving device 2 and a dust suppression device 4 are provided on the inner side of the moving device 1, and a cutting device 3 is provided at the movable end of the driving device 2.

[0023] The driving device 2 includes a driving box 201 , an internal motor 204 is fixedly mounted on the inner wall of the driving box 201 , a screw 205 is fixedly mounted on the output shaft of the internal motor 204 , and a nut seat 206 is threadedly connected to the surface of the screw 205 .

[0024] The cutting device 3 includes a connecting platform 301, a hydraulic telescopic rod 302 is fixedly installed on the top of the connecting platform 301, the movable end of the hydraulic telescopic rod 302 passes through the connecting platform 301 and is fixedly installed with a lifting frame 303, the bottom end of the lifting frame 303 is rotatably connected to a hinged rod 305, the back side of the lifting frame 303 is rotatably connected to an electric push rod 306, the back side of the hinged rod 305 is rotatably connected to a rotating pin 307, the movable end of the electric push rod 306 is movably plugged into the inner wall of the rotating pin 307, the back side of the hinged rod 305 is fixedly installed with a cutting motor 308, the output shaft of the cutting motor 308 passes through the hinged rod 305 and is fixedly installed with a cutting wheel 309, the front side of the hinged rod 305 is fixedly installed with a sleeve shell 310, and the cutting wheel 309 is located on the inner side of the sleeve shell 310.

[0025] The dust reduction device 4 includes a liquid storage tank 401 and an installation arc plate 409. The top of the liquid storage tank 401 is movably connected with a top cover 402. The outside of the liquid storage tank 401 is fixedly installed with a water inlet pipe 403 and a water outlet pump 407. A dust reduction nozzle 410 is provided below the installation arc plate 409. The water outlet end of the water outlet pump 407 is connected to the dust reduction nozzle 410 through a connecting hose 408.

[0026] like Figure 3 As shown, in some embodiments, the mobile device 1 includes a mobile slide rail 101, the top of the mobile slide rail 101 is slidably connected to a mobile platform 102 through a locking pin 103, the top of the mobile platform 102 is movably connected to a protective cover shell 104, and a power supply device 5 and a control panel 6 are provided on the outside of the protective cover shell 104.

[0027] Specifically, the design of the protective cover 104 can effectively protect the internal driving device 2 and the cutting device 3 from interference and damage from the external environment, while providing a safe operating environment.

[0028] The movable connection mode of the protective cover 104 allows it to be opened or closed when necessary to facilitate maintenance and repair of the device. The power supply device 5 provides the required power for the entire device to ensure the normal operation of each component.

[0029] The control panel 6 integrates various control buttons and display screens, allowing operators to conveniently control and monitor the working status of the device.

[0030] like Figure 3 As shown, in some embodiments, moving wheels 105 are provided at the corners of the bottom end of the movable slide rail 101 , and a push handle 106 is fixedly installed at the back end of the movable slide rail 101 .

[0031] Specifically, the design of the movable wheels 105 allows the entire device to be easily moved and adjusted at the construction site, enhancing its flexibility and portability. The push handle 106 provides the operator with a comfortable grip, facilitating pushing or pulling the device, further enhancing operational convenience. Through these designs, the present invention not only efficiently completes highway slitting operations, but also ensures operator safety and comfort, bringing significant convenience and benefits to highway construction.

[0032] like Figure 3 As shown, in some embodiments, a through opening is opened inside the mobile platform 102, and the cutting wheel 309 is located inside the through opening.

[0033] Specifically, the setting of the through-hole enables the cutting wheel 309 to smoothly perform the road cutting operation without being hindered by the mobile platform 102. At the same time, this design also ensures that the cutting wheel 309 can remain stable during the operation, thereby improving the accuracy and efficiency of cutting.

[0034] like Figure 4 As shown, in some embodiments, the side end of the drive box 201 is fixedly connected to the top of the mobile device 1 through the side frame 202, and an inspection cover 203 is movably connected to the opening of the drive box 201.

[0035] Specifically, the drive box 201 is securely connected to the top of the mobile device 1 via the side frame 202. This connection not only ensures the stability and safety of the drive box 201, but also facilitates subsequent maintenance and repair of the drive device 2. The design of the inspection cover 203 provides a convenient entrance, allowing operators to easily open and close the drive box 201 to inspect, repair, or replace internal components.

[0036] like Figure 4 As shown, in some embodiments, a transverse groove is provided at the bottom end of the driving box 201 , and the end of the nut seat 206 away from the screw rod 205 passes through the transverse groove and is fixedly connected to the back side of the connecting platform 301 .

[0037] Specifically, through such a structural arrangement, when the built-in motor 204 drives the screw rod 205 to rotate, the nut seat 206 can move smoothly along the screw rod 205, thereby driving the entire cutting device 3 to perform precise lateral movement.

[0038] like Figure 5 As shown, in some embodiments, a follower rod 304 is slidably connected to the inner side of the connecting platform 301 , and the bottom end of the follower rod 304 is fixedly connected to the top end of the lifting frame 303 .

[0039] Specifically, the design of the follower rod 304 enhances the stability of the lifting frame 303 during movement, preventing it from shaking or shifting during operation, ensuring the accuracy and safety of the cutting operation. The sliding connection between the follower rod 304 and the connecting platform 301 allows for smooth vertical height adjustment of the lifting frame 303 while maintaining stability in lateral movement. This design not only improves the overall performance of the cutting device 3 but also extends the equipment's service life.

[0040] like Figure 7 As shown, in some embodiments, a semiconductor cooler 404 is fixedly installed on the outside of the liquid storage tank 401, the cold end of the semiconductor cooler 404 extends to the inside of the liquid storage tank 401, and the hot end of the semiconductor cooler 404 is located on the outside of the liquid storage tank 401 and is provided with a water-cooled radiator 405.

[0041] Specifically, the design of the semiconductor refrigerator 404 can effectively cool the water in the liquid storage tank 401, ensuring that the water can achieve the best dust reduction effect when spraying. The water can be quickly cooled by the contact between the cold end of the semiconductor refrigerator 404 and the inner side of the liquid storage tank 401. The hot end of the semiconductor refrigerator 404 is located outside the liquid storage tank 401 and is equipped with a water-cooled radiator 405 to dissipate heat, so as to ensure that the semiconductor refrigerator 404 can work continuously and efficiently. Such a design not only improves the dust reduction efficiency of the dust reduction device 4, but also effectively extends the use time of the water in the liquid storage tank 401, reducing the waste of water resources.

[0042] like Figure 7 As shown, in some embodiments, an external plate 406 is fixedly installed on the outside of the liquid storage tank 401 , and the bottom end of the water-cooled radiator 405 overlaps with the top end of the external plate 406 .

[0043] Specifically, the design of external plate 406 provides a stable support point for water-cooled radiator 405, ensuring its stability and safety during operation. This design also facilitates maintenance and overhaul by operators, improving overall maintainability. The connection between water-cooled radiator 405 and external plate 406 is not only simple and practical, but also effectively utilizes the space outside of liquid storage tank 401, making the structure of the entire dust suppression device 4 more compact and rational.

[0044] like Figure 5 As shown, in some embodiments, a mounting notch 311 is provided at the top of the sleeve shell 310 , and the mounting arc plate 409 is movably engaged with the mounting notch 311 .

[0045] Specifically, the design of mounting notch 311 allows for flexible installation of mounting arc plate 409 on the top of sleeve housing 310. This flexible snap-fit ​​connection not only facilitates installation and removal but also facilitates adjustment or replacement of dust suppression nozzle 410 when necessary. The tight fit between mounting arc plate 409 and mounting notch 311 ensures the stability and accuracy of dust suppression nozzle 410 when spraying water, thereby improving the overall performance of dust suppression device 4.

[0046] During operation, the operator first activates the entire device via the control panel 6. The wheels 105 on the mobile device 1 allow the device to be easily moved to a desired location, and the handle 106 allows the operator to conveniently push or pull the device. Once the device reaches the desired location, the operator secures the mobile platform 102 to the sliding rails 101 using the locking pins 103, ensuring stability during operation.

[0047] Next, the drive unit 2 begins operating. The built-in motor 204 activates, driving the screw 205 to rotate. As the screw 205 rotates, the nut holder 206 moves smoothly along the screw 205, thereby driving the entire cutting unit 3 to perform precise lateral movement. During this process, the follower rod 304 inside the connecting platform 301 ensures the stability of the lifting frame 303 during movement.

[0048] At the same time, cutting device 3 also begins operation. The hydraulic telescopic rod 302 extends and retracts according to the operator's instructions, driving the lifting frame 303 to adjust its height. The hinged rod 305 and electric push rod 306, pivotally connected to the bottom end of the lifting frame 303, cooperate with the rotating pin 307 to drive the hinged rod 305 to rotate, prompting the cutting wheel 309 to adjust its angle.

[0049] Since the interior of the rotating pin 307 is provided with an inserting interface adapted to the movable end of the electric push rod 306, the movable end of the electric push rod 306 can be inserted into the inserting interface, thereby locking the rotating pin 307 and the angle piece 305. In this way, the cutting wheel 309 can be dynamically adjusted according to the specific requirements of the cutting, ensuring the accuracy and efficiency of the cutting; During the cutting process, the dust suppression device 4 also plays an important role. A water pump 407 delivers water from the liquid storage tank 401 to the dust suppression nozzle 410 via a connecting hose 408. The dust suppression nozzle 410 sprays water at high pressure, removing dust generated during the cutting process and simultaneously flushing away impurities such as stones from the road surface. The semiconductor cooler 404 cools the water in the liquid storage tank 401, ensuring optimal dust suppression during spraying. The water-cooled radiator 405 dissipates heat from the hot end of the semiconductor cooler 404, ensuring continuous and efficient operation.

[0050] To sum up, through the driving device 2, utilizing the built-in motor 204 inside the driving box 201, the screw 205 can be effectively driven to rotate, thereby prompting the nut seat 206 to move along the screw 205, so that the cutting device 3 can achieve precise lateral movement with the help of the lateral movement of the nut seat 206. Driven by the driving device 2, the cutting device 3 can perform highway cutting operations more accurately, thereby improving the accuracy and efficiency of construction.

[0051] The present invention, through the cutting device 3, can realize the precise control of the lifting frame 303 through the hydraulic telescopic rod 302 at the top of the connecting platform 301, thereby driving the cutting wheel 309 to adjust the height, and then cooperating with the electric push rod 306 to flexibly drive the articulated rod 305 to adjust the angle of the cutting wheel 309 through the rotating pin 307, so that the cutting wheel 309 can be dynamically adjusted according to the specific needs of the cutting seam, ensuring that the cutting device 3 can adjust the cutting depth according to different usage requirements. Therefore, no matter what the construction requirements are, the cutting device 3 can respond flexibly, thereby improving the practicality and flexibility of the device, so that it can perform excellently in various complex working environments.

[0052] The present invention uses the dust reduction device 4 and the water outlet pump 407 to deliver the water in the liquid storage tank 401 into the dust reduction nozzle 410 through the connecting hose 408, and then cooperates with the dust reduction nozzle 410 to spray the water at high pressure. By spraying water to reduce dust, the dust is processed and impurities such as stones washed on the road surface are cleaned, thereby reducing the impact of dust in the environment on the workers and ensuring that the road surface is neat and clean.

[0053] It should be noted that the specific models and specifications of the power supply equipment 5, control panel 6, built-in motor 204, hydraulic telescopic rod 302, electric push rod 306, cutting motor 308, conductor cooler, water-cooled radiator 405, water outlet pump 407, and dust suppression nozzle 410 in the cutting device for highway construction need to be selected and determined based on the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0054] In addition, the power supply and principles of the power supply equipment 5, control panel 6, built-in motor 204, hydraulic telescopic rod 302, electric push rod 306, cutting motor 308, conductor cooler, water-cooled radiator 405, water outlet pump 407, and dust suppression nozzle 410 in the highway construction cutting device are clear to those skilled in the art and will not be described in detail here.

[0055] In addition, the working principles and wiring methods of the power supply equipment 5, control panel 6, built-in motor 204, hydraulic telescopic rod 302, electric push rod 306, cutting motor 308, conductor cooler, water-cooled radiator 405, water outlet pump 407, and dust suppression nozzle 410 in the cutting device for highway construction are commonplace, and they are all conventional means or common knowledge, so they will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0056] 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 aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A cutting device for highway construction, comprising a moving device (1), characterized in that: A driving device (2) and a dust suppression device (4) are provided on the inner side of the moving device (1), and a cutting device (3) is provided on the movable end of the driving device (2); The driving device (2) comprises a driving box (201), a built-in motor (204) is fixedly mounted on the inner wall of the driving box (201), a screw (205) is fixedly mounted on the output shaft of the built-in motor (204), and a nut seat (206) is threadedly connected to the surface of the screw (205); The cutting device (3) comprises a connecting platform (301), a hydraulic telescopic rod (302) is fixedly mounted on the top of the connecting platform (301), a movable end of the hydraulic telescopic rod (302) passes through the connecting platform (301) and is fixedly mounted on a lifting frame (303), a bottom end of the lifting frame (303) is rotatably connected to a hinged rod (305), a back side of the lifting frame (303) is rotatably connected to an electric push rod (306), and a back side of the hinged rod (305) is rotatably connected to a lifting frame (306). A rotating pin (307) is connected, the movable end of the electric push rod (306) is movably plugged into the inner wall of the rotating pin (307), a cutting motor (308) is fixedly installed on the back side of the hinged rod (305), the output shaft of the cutting motor (308) passes through the hinged rod (305) and is fixedly installed with a cutting wheel (309), a sleeve shell (310) is fixedly installed on the front side of the hinged rod (305), and the cutting wheel (309) is located on the inner side of the sleeve shell (310); The dust suppression device (4) comprises a liquid storage tank (401) and a mounting arc plate (409); a top cover (402) is movably connected to the top of the liquid storage tank (401); a water inlet pipe (403) and a water outlet pump (407) are fixedly mounted on the outside of the liquid storage tank (401); a dust suppression nozzle (410) is provided below the mounting arc plate (409); and a water outlet end of the water outlet pump (407) is connected to the dust suppression nozzle (410) via a connecting hose (408).

2. A road construction cutting device according to claim 1, characterized in that: The mobile device (1) comprises a mobile slide rail (101), the top end of the mobile slide rail (101) is slidably connected to a mobile platform (102) via a locking pin (103), the top end of the mobile platform (102) is movably connected to a protective cover (104), and a power supply device (5) and a control panel (6) are provided on the outside of the protective cover (104).

3. A road construction cutting device according to claim 2, characterized in that: A movable wheel (105) is provided at the corner of the bottom end of the movable slide rail (101), and a push handle (106) is fixedly installed at the back end of the movable slide rail (101).

4. A road construction cutting device according to claim 2, characterized in that: A through opening is provided inside the movable platform (102), and the cutting wheel (309) is located inside the through opening.

5. A road construction cutting device according to claim 1, characterized in that: The side end of the drive box (201) is fixedly connected to the top of the mobile device (1) via a side frame (202), and an inspection cover (203) is movably connected to the opening of the drive box (201).

6. A road construction cutting device according to claim 1, characterized in that: A transverse groove is provided at the bottom end of the drive box (201), and one end of the nut seat (206) away from the screw rod (205) passes through the transverse groove and is fixedly connected to the back side of the connecting platform (301).

7. A road construction cutting device according to claim 1, characterized in that: The inner side of the connecting platform (301) is slidably connected to a follower rod (304), and the bottom end of the follower rod (304) is fixedly connected to the top end of the lifting frame (303).

8. A road construction cutting device according to claim 1, characterized in that: A semiconductor cooler (404) is fixedly mounted on the outside of the liquid storage tank (401), a cold end of the semiconductor cooler (404) extends to the inside of the liquid storage tank (401), and a hot end of the semiconductor cooler (404) is located outside the liquid storage tank (401) and is provided with a water-cooled radiator (405).

9. A road construction cutting device according to claim 8, characterized in that: An external plate (406) is fixedly mounted on the outside of the liquid storage tank (401), and the bottom end of the water-cooling radiator (405) is overlapped with the top end of the external plate (406).

10. A road construction cutting device according to claim 1, characterized in that: A mounting notch (311) is provided at the top of the sleeve shell (310), and the mounting arc plate (409) is movably engaged with the mounting notch (311).

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