Road engineering pavement drilling device

Abstract

The invention discloses a road engineering pavement drilling device and belongs to the technical field of drilling equipment. According to the device, the top of the base is fixedly connected with a fixed cylinder, a first motor is fixedly mounted in the fixed cylinder, an output shaft of the first motor is fixedly connected with a screw rod, the outer wall of the screw rod is in threaded connection with a moving block, and the outer wall of the moving block is slidably connected to the inner wall of the fixed cylinder; and a cleaning mechanism is arranged at the end of the moving block so that substances drilled out in the drilling process can be cleaned during drilling work, and a positioning mechanism is arranged at the top of the base so that it can be ensured that deviation cannot occur in the drilling process during drilling work. Materials are conveyed through the spiral blade, materials on the drill rod and the spiral blade are scraped by the scraper, the drilling accuracy is ensured, the working quality is improved, the torsion spring is arranged between the conveying cylinder and the sealing cover, the sealing cover automatically rotates outwards after work is completed, detection, maintenance and component replacement are facilitated, and the drilling accuracy is further ensured.

Description

Technical Field

[0001] The invention relates to the technical field of drilling equipment, and in particular to a road surface drilling device for highway engineering. Background Art

[0002] Highway engineering is an indispensable material basis for the survival and development of cities, and is a basic condition for improving people's living standards and opening up to the outside world. Highway engineering refers to the survey, measurement, design, construction, maintenance, and management of highway structures. Highway engineering structures include roadbeds, pavements, bridges, culverts, tunnels, drainage systems, safety protection facilities, greening and traffic monitoring facilities, as well as houses, workshops and other service facilities used for construction, maintenance and monitoring.

[0003] Drilling devices are needed in highway engineering. Highway drilling machines are a type of equipment specifically used for drilling holes in highway engineering pavement. They can efficiently and accurately drill holes on various pavement materials (such as cement pavement, asphalt pavement, etc.). This device is widely used in drilling operations before the installation of guardrail columns in highways, expressways, and traffic safety projects. It can also be used for geological surveys and explorations, bridge construction, and the installation of pipelines, cables, and other facilities in urban infrastructure construction.

[0004] The existing device mainly loads and moves the drilling equipment through a movable cart, which makes it difficult for some devices to stably support the drilling rig in the working state through the movable cart. When drilling, it is easy to shake, causing the drilling components to shift, causing the drilling accuracy to deviate. The device may also be damaged due to the easy large-scale shaking. At the same time, when drilling, the drilled material is transported by spiral blades, which will cause excessive accumulation of material around the hole, which may cause the material to scatter when it is subsequently collected. When the drill bit withdraws from the borehole, the soil at a high place is easy to fall into the borehole again, resulting in a large error between the actual depth of the borehole and the expected depth. In addition, impurities are likely to remain on the surface of the drilling component when drilling. As the impurities accumulate, it is easy to affect the drilling component, resulting in the possibility of damage to the drilling component, reducing the service life of the device. Summary of the invention

[0005] The object of the present invention is to provide a foundation drilling device for building construction to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a road engineering pavement drilling device, comprising a base, a fixed cylinder is fixedly connected to the top of the base, and a first motor is fixedly installed inside the fixed cylinder, an output shaft of the first motor is fixedly connected to a screw, and a moving block is threadedly connected to the outer wall of the screw, and the outer wall of the moving block is slidably connected to the inner wall of the fixed cylinder; The end of the moving block is provided with a cleaning mechanism so as to clean the material drilled out during the drilling process; A positioning mechanism is arranged on the top of the base to ensure that no deviation occurs during the drilling process.

[0007] Further, the cleaning mechanism includes a conveying cylinder, and the outer wall of the conveying cylinder is slidably connected to a ring, the side wall of the conveying cylinder is hinged with a sealing cover, and the inner wall of the sealing cover is fixedly connected to a fixing rod, the outer wall of the fixing rod is slidably connected to a sliding block, and the top of the sliding block is fixedly connected to a first spring, one end of the first spring away from the sliding block is fixedly connected to the inner wall of the first spring, and the end of the sliding block away from the fixing rod is fixedly connected to a scraper.

[0008] Furthermore, a second motor is fixedly mounted on the top of the conveying cylinder, and a coupling is fixedly mounted on the output shaft of the second motor. A drill rod is fixedly connected to the bottom of the coupling, and a spiral blade is fixedly connected to the outer wall of the drill rod.

[0009] Further, the side of the scraper away from the slider corresponds to the outer wall of the drill pipe, the outer wall of the spiral blade corresponds to the outer wall of the conveying cylinder, the side wall of the sealing cover corresponds to the side wall of the conveying cylinder, the bottom of the ring is fixedly connected to the top of the base, and the outer wall of the conveying cylinder is slidably connected to the inside of the base.

[0010] Further, the positioning mechanism includes a first connecting rod and a connecting plate, and the outer wall of the first connecting rod is slidably connected to the positioning rod, the outer wall of the positioning rod is fixedly connected to a limiting ring, the side wall of the connecting plate is penetrated by a through groove, and the inner wall of the through groove is slidably connected to a sliding plate, the bottom of the sliding plate is fixedly connected to a second spring, and the end of the second spring away from the sliding plate is fixedly connected to the inner wall of the through groove, the side of the sliding plate away from the second spring is fixedly connected to a sliding rod, and the inner wall of the sliding rod is slidably connected to the second connecting rod.

[0011] Furthermore, the outer wall of the limit ring is rotatably connected to the inside of the connecting plate, the end of the sliding rod close to the sliding plate passes through and is slidably connected to the inside of the connecting plate, the end of the first connecting rod away from the positioning rod is fixedly connected to the bottom of the base, and the end of the second connecting rod away from the sliding rod is rotatably connected to the bottom of the base.

[0012] Furthermore, the outer wall of the second connecting rod is fixedly connected to the first gear, and the outer wall of the first gear is matched and meshed with a chain, the inner wall of the chain is matched and meshed with a second gear, and the top of the second gear is fixedly connected to the bottom of the screw rod, and the bottom of the second gear is rotatably connected to the top of the base.

[0013] Furthermore, a connecting hose is fixedly connected to the side wall of the conveying cylinder, a storage box is fixedly installed on the top of the base, and an end of the connecting hose away from the conveying cylinder is connected to the interior of the storage box.

[0014] Furthermore, a plurality of universal wheels are fixedly mounted on the bottom of the base, and a push rod is fixedly connected to the top of the base.

[0015] Compared with the prior art, the above solution has the following beneficial effects: 1. The spiral blades can transport the material produced by drilling upward to the inside of the conveying cylinder, and then the material will contact the outer wall of the scraper to scrape off the material adsorbed on the drill rod and the outer wall of the spiral blade, so that when the drill rod leaves the inside of the borehole, the material will no longer fall into the borehole, thereby ensuring the accuracy of the drilling work and improving the work quality. By arranging a torsion spring at the hinge of the conveying cylinder and the sealing cover, after the drilling work is completed, the sealing cover will be rotated outward by the elastic force of the torsion spring, so that the operator can directly see the inside of the conveying cylinder, thereby facilitating the inspection, maintenance and replacement of components, thereby ensuring the accuracy of the drilling work.

[0016] 2. Since the positioning rod and the first connecting rod are rotatably connected through the inclined groove, the positioning rod will drive the limit ring to rotate inside the connecting plate during the downward movement, so that the positioning rod is stably embedded in the road surface. Then, after the sliding rod moves down to a certain position, it will detach from the bottom of the second connecting rod. At this time, the positioning rod can provide stable supporting force for the device. The outer wall of the positioning rod is provided with threads to increase the friction with the road surface, which can better avoid the vibration caused by drilling and cause the device to shift. The device can be automatically and stably positioned during drilling, which effectively improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure proposed by the present invention; Figure 2 It is a schematic diagram of the overall structure proposed by the present invention; Figure 3 A partial structural connection cross-sectional view of the present invention; Figure 4 A cross-sectional view of the structure connection of the cleaning mechanism proposed by the present invention; Figure 5 A cross-sectional view of the structural connection of the positioning mechanism proposed by the present invention; Figure 6 This is a partial cross-sectional view of the structural connection proposed by the present invention.

[0018] The marks in the accompanying drawings are: 1, base; 2, fixed cylinder; 3, first motor; 4, screw; 5, moving block; 6, cleaning mechanism; 7, second motor; 8, coupling; 9, drill rod; 10, spiral blade; 11, positioning mechanism; 12, first gear; 13, chain; 14, second gear; 15, connecting hose; 16, storage box; 17, universal wheel; 18, push rod; 601, conveying cylinder; 602, ring; 603, sealing cover; 604, fixed rod; 605, slider; 606, first spring; 607, scraper; 1101, first connecting rod; 1102, positioning rod; 1103, limiting ring; 1104, connecting plate; 1105, through groove; 1106, sliding plate; 1107, second spring; 1108, sliding rod; 1109, second connecting rod. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] In the description of the present invention, it should be understood that the terms "upper", "lower", "top surface", "bottom surface" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the positions or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations of the present invention. In addition, the terms "first" and "second" are only used to distinguish an entity or operation from another entity or operation, and do not require or imply any actual relationship, order or relative importance between these entities or operations.

[0021] For example, see Figure 1-4 A road drilling device for highway engineering comprises a base 1, a fixed cylinder 2 is fixedly connected to the top of the base 1, and a first motor 3 is fixedly installed inside the fixed cylinder 2, a screw 4 is fixedly connected to the output shaft of the first motor 3, and a moving block 5 is threadedly connected to the outer wall of the screw 4, and the outer wall of the moving block 5 is slidably connected to the inner wall of the fixed cylinder 2, a connecting hose 15 is fixedly connected to the side wall of the conveying cylinder 601, a storage box 16 is fixedly installed on the top of the base 1, and the end of the connecting hose 15 away from the conveying cylinder 601 is connected to the inside of the storage box 16, a plurality of universal wheels 17 are fixedly installed on the bottom of the base 1, and a push rod 18 is fixedly connected to the top of the base 1; A cleaning mechanism 6 is provided at the end of the moving block 5 so as to clean the material drilled out during the drilling process. The cleaning mechanism 6 includes a conveying cylinder 601, and a ring 602 is slidably connected to the outer wall of the conveying cylinder 601. A sealing cover 603 is hinged on the side wall of the conveying cylinder 601, and a fixing rod 604 is fixedly connected to the inner wall of the sealing cover 603. A slider 605 is slidably connected to the outer wall of the fixing rod 604, and a first spring 606 is fixedly connected to the top of the slider 605. The end of the first spring 606 away from the slider 605 is fixedly connected to the inner wall of the first spring 606, and the slider 605 is connected to the fixing rod 604. A scraper 607 is fixedly connected to the end away from the conveying cylinder 601, a second motor 7 is fixedly installed on the top of the conveying cylinder 601, and a coupling 8 is fixedly installed on the output shaft of the second motor 7, a drill rod 9 is fixedly connected to the bottom of the coupling 8, and a spiral blade 10 is fixedly connected to the outer wall of the drill rod 9, the side of the scraper 607 away from the slider 605 corresponds to the outer wall of the drill rod 9, the outer wall of the spiral blade 10 corresponds to the outer wall of the conveying cylinder 601, the side wall of the sealing cover 603 corresponds to the side wall of the conveying cylinder 601, the bottom of the ring 602 is fixedly connected to the top of the base 1, and the outer wall of the conveying cylinder 601 penetrates and is slidably connected to the inside of the base 1; Furthermore, when a highway is under construction, a drilling device is required. The operator can then drive the device to move on the road surface by pushing the push rod 18. The device can be conveniently moved to the construction area by cooperating with the universal wheel 17. The bottom of the drill rod 9 is then aligned with the position where the hole needs to be drilled. The drilling work can then be performed. By driving the second motor 7, the output shaft of the second motor 7 will rotate at high speed, and at the same time, the coupling 8 of the output shaft will rotate synchronously. Then, the coupling 8 will drive the spiral blade 10 to rotate synchronously through the drill rod 9. Then, the first motor 3 is driven to rotate its output shaft. At the same time, the output shaft of the first motor 3 will drive the screw 4 is rotated. Since the interior of the moving block 5 is connected to the outer wall of the screw rod 4 by a thread, and the inner wall of the fixed cylinder 2 can limit the direction of the moving block 5, the screw rod 4 will drive the moving block 5 to move downward along the inner wall of the fixed cylinder 2 when it rotates, and the moving block 5 will drive the conveying cylinder 601 to move downward synchronously. When the conveying cylinder 601 moves downward to a certain position, the outer wall of the sealing cover 603 will contact the top of the ring 602, and then it will be squeezed by the ring 602, so that the sealing cover 603 rotates in the direction of the conveying cylinder 601 and is clamped together. At the same time, the sealing cover 603 will drive the side wall of the scraper 607 to fit on the drill pipe 9 through the fixed rod 604. The outer wall of the conveying cylinder 601 is sealed when the sealing cover 603 rotates. When the conveying cylinder 601 moves downward, the second motor 7 is driven to move downward. Therefore, the second motor 7 drives the drill rod 9 and the spiral blade 10 to move downward through the coupling 8, thereby realizing the drilling work on the area below through the downward movement of the drill rod 9 and the spiral blade 10. Then the material produced by the drilling is transported upward by the rotating spiral blade 10, and then the material contacts the outer wall of the scraper 607. The scraper 607 slides on the outer wall of the drill rod 9 and the spiral blade 10. When the spiral blade 10 rotates, the slider 6 is driven by the scraper 607. 05 slides upward along the outer wall of the fixing rod 604, and at the same time, the first spring 606 is compressed. When the scraper 607 passes over the highest point of the spiral blade 10, the elastic force of the first spring 606 is reset to drive the scraper 607 to move downward quickly, so that the bottom of the scraper 607 is always in contact with the surface of the spiral blade 10, and the spiral blade 10 can be knocked, so that the material adsorbed on the outer wall of the drill rod 9 and the spiral blade 10 can be scraped off better, and then the material will enter the storage box 16 through the connecting hose 15, so as to avoid the material being adsorbed on the outer wall of the drill rod 9 and the spiral blade 10 for a long time and affecting the drilling work; After the drilling work is completed, the first motor 3 is driven to drive the conveying cylinder 601 to reset and move. By setting a torsion spring at the hinge of the conveying cylinder 601 and the sealing cover 603, when the sealing cover 603 passes the position of the ring 602, the sealing cover 603 will be rotated outward by the elastic force of the torsion spring, and the interior of the conveying cylinder 601 will be opened, so that the operator can intuitively see the interior, thereby facilitating the maintenance and replacement of components.

[0022] For example 2, please refer to Figure 3 , Figure 5 and Figure 6 , based on the first embodiment, in this embodiment, a positioning mechanism 11 is provided on the top of the base 1 to ensure that no deviation occurs during the drilling process; The positioning mechanism 11 includes a first connecting rod 1101 and a connecting plate 1104, and the outer wall of the first connecting rod 1101 is slidably connected to the positioning rod 1102, the outer wall of the positioning rod 1102 is fixedly connected to the limiting ring 1103, the side wall of the connecting plate 1104 is penetrated with a through groove 1105, and the inner wall of the through groove 1105 is slidably connected to the sliding plate 1106, the bottom of the sliding plate 1106 is fixedly connected to the second spring 1107, and the end of the second spring 1107 away from the sliding plate 1106 is fixedly connected to the inner wall of the through groove 1105, the side of the sliding plate 1106 away from the second spring 1107 is fixedly connected to the sliding rod 1108, and the inner wall of the sliding rod 1108 is slidably connected to the second connecting rod 1109 , the outer wall of the limit ring 1103 is rotatably connected to the inside of the connecting plate 1104, the end of the sliding rod 1108 close to the sliding plate 1106 penetrates and is slidably connected to the inside of the connecting plate 1104, the end of the first connecting rod 1101 away from the positioning rod 1102 is fixedly connected to the bottom of the base 1, the end of the second connecting rod 1109 away from the sliding rod 1108 is rotatably connected to the bottom of the base 1, the outer wall of the second connecting rod 1109 is fixedly connected to the first gear 12, and the outer wall of the first gear 12 is matched and meshed with the chain 13, the inner wall of the chain 13 is matched and meshed with the second gear 14, and the top of the second gear 14 is fixedly connected to the bottom of the screw 4, and the bottom of the second gear 14 is rotatably connected to the top of the base 1; Furthermore, when drilling, in order to ensure stability during the drilling process, the device needs to be positioned firmly. In the process of driving the first motor 3 to drive the screw rod 4 to rotate, the screw rod 4 will drive the second gear 14 to rotate synchronously, and then the second gear 14 will drive the first gear 12 to rotate through the chain 13, so that the first gear 12 drives the second connecting rod 1109 to rotate synchronously. Since the second connecting rod 1109 and the sliding rod 1108 are rotatably connected through the inclined groove, the second connecting rod 1109 will drive the sliding rod 1108 to move downward when it rotates, and then the sliding rod 1108 will squeeze the second spring 1107 through the sliding plate 1106, so that the second spring 1107 drives the connecting plate 1104 to move downward through the pressure, and then the connecting plate 1104 will drive the positioning rod 1102 to move downward synchronously through the limiting ring 1103. 01 are connected by an inclined groove, so the positioning rod 1102 will drive the limit ring 1103 to rotate inside the connecting plate 1104 during the downward movement, so that the positioning rod 1102 is stably embedded in the road surface, and then the sliding rod 1108 will be separated from the bottom of the second connecting rod 1109 after it moves down to a certain position. At this time, the positioning rod 1102 can provide stable support for the device, and the outer wall of the positioning rod 1102 is provided with a thread, thereby increasing the friction with the road surface, which can better avoid the vibration generated by drilling and causing the device to shift. After the drilling work is completed, the sliding plate 1106 and the sliding rod 1108 are driven by the elastic force of the second spring 1107 to move upward, so that the sliding rod 1108 is reconnected with the second connecting rod 1109, and then when the first motor 3 is driven to rotate in the opposite direction, the first gear 12 can drive the second connecting rod 1109 to rotate in the opposite direction, thereby driving the positioning rod 1102 to reset.

[0023] The working principle of the present invention is: by pushing the push rod 18 to drive the device to move on the road surface, the device can be conveniently moved to the construction area by cooperating with the universal wheel 17, and then the bottom of the drill rod 9 is aligned with the position where the hole needs to be drilled, and then the drilling work can be carried out, and then the output shaft of the second motor 7 will rotate at a high speed, and at the same time, the coupling 8 of the output shaft will be driven to rotate synchronously, and then the coupling 8 will drive the spiral blade 10 to rotate synchronously through the drill rod 9, and then the first motor 3 is driven to rotate its output shaft, and at the same time, the output shaft of the first motor 3 will drive the screw 4 The inner part of the moving block 5 is connected to the outer wall of the screw rod 4 by a thread, and the inner wall of the fixed cylinder 2 can limit the direction of the moving block 5. Therefore, when the screw rod 4 rotates, the moving block 5 will move downward along the inner wall of the fixed cylinder 2, and the moving block 5 will drive the conveying cylinder 601 to move downward synchronously. When the conveying cylinder 601 moves down to a certain position, the outer wall of the sealing cover 603 will contact the top of the ring 602, and then it will be squeezed by the ring 602, so that the sealing cover 603 rotates in the direction of the conveying cylinder 601 and snaps together. At the same time, the sealing cover 603 will pass through the fixed rod 604 drives the side wall of the scraper 607 to fit the outer wall of the drill rod 9. After the sealing cover 603 is rotated, the interior of the conveying cylinder 601 is a sealed space. When the conveying cylinder 601 moves downward, it will drive the second motor 7 to move downward. Therefore, the second motor 7 will drive the drill rod 9 and the spiral blade 10 to move downward through the coupling 8, so that the drilling work is carried out on the area below through the downward movement of the drill rod 9 and the spiral blade 10. Then the material produced by the drilling will be transported upward by the rotating spiral blade 10, and then the material will contact the outer wall of the scraper 607, and the scraper 607 will slide in the drill hole. When the spiral blade 10 rotates, the outer wall of the rod 9 and the spiral blade 10 will drive the slider 605 to slide upward along the outer wall of the fixed rod 604 through the scraper 607, and at the same time, the first spring 606 will be compressed. When the scraper 607 passes the highest point of the spiral blade 10, the elastic force of the first spring 606 is reset to drive the scraper 607 to move downward quickly, so that the bottom of the scraper 607 is always in contact with the surface of the spiral blade 10, and the spiral blade 10 can be knocked, so as to better scrape off the material adsorbed on the drill rod 9 and the outer wall of the spiral blade 10; In the process of driving the first motor 3 to drive the screw 4 to rotate, the screw 4 will drive the second gear 14 to rotate synchronously, and then the second gear 14 will drive the first gear 12 to rotate through the chain 13, so that the first gear 12 drives the second connecting rod 1109 to rotate synchronously. Since the second connecting rod 1109 and the sliding rod 1108 are rotatably connected through the inclined groove, the second connecting rod 1109 will drive the sliding rod 1108 to move downward when it rotates, and then the sliding rod 1108 will squeeze the second spring 1107 through the sliding plate 1106, so that the second spring 1107 drives the connecting plate 1104 to move downward through the pressure, and then the connecting plate 1104 will The positioning rod 1102 is driven to move downward synchronously by the limiting ring 1103. Since the positioning rod 1102 and the first connecting rod 1101 are rotatably connected via the inclined groove, the positioning rod 1102 will drive the limiting ring 1103 to rotate inside the connecting plate 1104 during the downward movement, so that the positioning rod 1102 is stably embedded in the road surface. After that, when the sliding rod 1108 moves down to a certain position, it will detach from the bottom of the second connecting rod 1109. At this time, the positioning rod 1102 can provide stable support for the device. The outer wall of the positioning rod 1102 is provided with threads, thereby increasing the friction with the road surface, which can better prevent the vibration generated by drilling from causing the device to shift.

[0024] It should be noted that the various devices in this application are common devices in the market, and can be selected according to specific needs during specific use. The circuit connection relationship of each device belongs to a simple series and parallel connection circuit. There is no innovation in the circuit connection part. Those skilled in the art can implement it relatively easily. It belongs to the existing technology and will not be elaborated on.

[0025] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. A road engineering pavement drilling device, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a fixed cylinder (2), and a first motor (3) is fixedly installed inside the fixed cylinder (2); the output shaft of the first motor (3) is fixedly connected to a screw rod (4), and the outer wall of the screw rod (4) is threadedly connected to a moving block (5), and the outer wall of the moving block (5) is slidably connected to the inner wall of the fixed cylinder (2); The end of the moving block (5) is provided with a cleaning mechanism (6) for cleaning the material drilled out during the drilling process; A positioning mechanism (11) is provided on the top of the base (1) to ensure that no deviation occurs during the drilling process; The cleaning mechanism (6) comprises a conveying cylinder (601), and the outer wall of the conveying cylinder (601) is slidably connected to a ring (602), the side wall of the conveying cylinder (601) is hinged with a sealing cover (603), and the inner wall of the sealing cover (603) is fixedly connected to a fixing rod (604), the outer wall of the fixing rod (604) is slidably connected to a sliding block (605), and the top of the sliding block (605) is fixedly connected to a first spring (606), an end of the first spring (606) away from the sliding block (605) is fixedly connected to the inner wall of the first spring (606), and an end of the sliding block (605) away from the fixing rod (604) is fixedly connected to a scraper (607).

2. A road engineering pavement drilling device according to claim 1, characterized in that: A second motor (7) is fixedly mounted on the top of the conveying cylinder (601), and a coupling (8) is fixedly mounted on the output shaft of the second motor (7); a drill rod (9) is fixedly connected to the bottom of the coupling (8), and a spiral blade (10) is fixedly connected to the outer wall of the drill rod (9).

3. A road engineering pavement drilling device according to claim 2, characterized in that: The side of the scraper (607) away from the slider (605) corresponds to the outer wall of the drill rod (9), the outer wall of the spiral blade (10) corresponds to the outer wall of the conveying tube (601), the side wall of the sealing cover (603) corresponds to the side wall of the conveying tube (601), the bottom of the ring (602) is fixedly connected to the top of the base (1), and the outer wall of the conveying tube (601) is slidably connected to the inside of the base (1).

4. A road engineering pavement drilling device according to any one of claims 1 to 3, characterized in that: The positioning mechanism (11) comprises a first connecting rod (1101) and a connecting plate (1104), wherein the outer wall of the first connecting rod (1101) is slidably connected to a positioning rod (1102), the outer wall of the positioning rod (1102) is fixedly connected to a limiting ring (1103), a through slot (1105) is formed through the side wall of the connecting plate (1104), and a sliding plate (1106) is slidably connected to the inner wall of the through slot (1105), a second spring (1107) is fixedly connected to the bottom of the sliding plate (1106), and an end of the second spring (1107) away from the sliding plate (1106) is fixedly connected to the inner wall of the through slot (1105), a sliding rod (1108) is fixedly connected to the side of the sliding plate (1106) away from the second spring (1107), and a second connecting rod (1109) is slidably connected to the inner wall of the sliding rod (1108).

5. A road engineering pavement drilling device according to claim 4, characterized in that: The outer wall of the limiting ring (1103) is rotatably connected to the inside of the connecting plate (1104); the end of the sliding rod (1108) close to the sliding plate (1106) passes through and is slidably connected to the inside of the connecting plate (1104); the end of the first connecting rod (1101) away from the positioning rod (1102) is fixedly connected to the bottom of the base (1); and the end of the second connecting rod (1109) away from the sliding rod (1108) is rotatably connected to the bottom of the base (1).

6. A road engineering pavement drilling device according to claim 5, characterized in that: The outer wall of the second connecting rod (1109) is fixedly connected to the first gear (12), and the outer wall of the first gear (12) is matched and meshed with a chain (13), the inner wall of the chain (13) is matched and meshed with a second gear (14), and the top of the second gear (14) is fixedly connected to the bottom of the screw rod (4), and the bottom of the second gear (14) is rotatably connected to the top of the base (1).

7. A road engineering pavement drilling device according to claim 1, characterized in that: A connecting hose (15) is fixedly connected to the side wall of the conveying cylinder (601), a storage box (16) is fixedly installed on the top of the base (1), and an end of the connecting hose (15) away from the conveying cylinder (601) is connected to the interior of the storage box (16).

8. A road engineering pavement drilling device according to claim 1, characterized in that: A plurality of universal wheels (17) are fixedly mounted on the bottom of the base (1), and a push rod (18) is fixedly connected to the top of the base (1).

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