Road surface coring drill device for supervision

Abstract

The utility model relates to core drill device technical field, and disclose the road core drill device for supervision, including base and handle and the universal wheel at the bottom of base, the base top away from the one end fixed mounting of handle has the guide post, the guide post away from the one end fixed mounting of base has the top plate, the one side of top plate away from base is provided with hand wheel no. 1, the one end fixed mounting of hand wheel no. 1 near top plate has screw rod no. 1. The road core drill device for supervision, the staff can according to actual road surface condition, manually regulated the extension height of support foot until with ground close contact, improved the stability of the device work time, and through setting two groups of symmetrical distribution's support assembly, can provide stable support force for core drill device, and in the face of different road surface conditions, can flexibly adjust the height of the extension support foot of two groups of support assembly, avoid the device to be inclined or sway because of uneven stress, improve the core efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of core drilling devices, specifically a road surface core drilling device for supervision. Background Technology

[0002] In the construction and maintenance of transportation infrastructure such as highways and municipal roads, the quality of the pavement structure directly determines the road's load-bearing capacity, durability, and driving safety. Supervision, as a crucial link in project quality control, requires scientific testing methods to verify whether the pavement construction meets design specifications and quality standards. Among these methods, pavement core sampling is a core testing technique. By obtaining complete pavement core samples, it is possible to directly analyze the surface layer thickness, the bonding state between the base and surface layers, aggregate gradation, compaction degree, and the presence of internal defects such as voids and segregation. This serves as an important basis for assessing pavement construction quality, determining whether the project meets standards, and for subsequent acceptance.

[0003] Chinese Utility Model Patent Publication No. CN 222049627 U discloses a road surface core drilling device for supervision. The device, as described in the specification, uses a core drill body to sample the road surface. After sampling, a cylinder telescopic shaft moves, driving a top plate to move. The top plate slides within a limiting groove, pushing out the core sample collected inside the core drill body. This saves time and reduces the difficulty of core sampling, improving work efficiency. A positioning bolt passes through a limiting hole and is fixed inside a fixing hole, allowing the core drill body to be mounted on the drive motor shaft, facilitating replacement or maintenance by staff and enhancing practicality. However, this road surface core drilling device for supervision... The core drilling device lacks a support structure, making it prone to shaking or tilting during core drilling due to uneven road surfaces. This not only affects the quality of core drilling but also poses a potential safety hazard to operators. Furthermore, the core drill body is mounted on the drive motor shaft solely by positioning bolts passing through limit holes. During core drilling operations on the road surface, the core drill body needs to withstand significant torque and vibration. Relying solely on positioning bolts passing through limit holes for fixation can easily lead to loosening of the bolts over time due to high-frequency vibration, or even the core drill body falling off the drive shaft. This not only interrupts the core drilling operation but may also cause safety accidents, resulting in poor practicality. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a road surface core drilling device for supervision, which can effectively solve the problems in the prior art.

[0005] The technical solution adopted by this utility model is: a road core drilling device for supervision, including a base, a handle, and a universal wheel located at the bottom of the base. A guide column is fixedly installed at the top of the base away from the handle. A top plate is fixedly installed at the end of the guide column away from the base. A handwheel is provided on the side of the top plate away from the base. A screw is fixedly installed at the end of the handwheel near the top plate. A movable block is provided on the side of the top plate near the base. A fixed seat is fixedly installed at the end of the movable block away from the handle. A transmission rod is rotatably installed at the end of the fixed seat near the base. An installation groove is opened at the end of the transmission rod away from the fixed seat. A core drilling body is provided on the side of the transmission rod away from the fixed seat. A connecting seat is fixedly installed at the end of the core drilling body near the transmission rod. A guide block is fixedly installed at the end of the connecting seat near the transmission rod. A support assembly is provided on the top of the base between the handle and the guide column.

[0006] Preferably, a stepper motor is provided on the side of the moving block away from the fixed base, and a pulley is fixedly mounted on the output shaft of the stepper motor. A transmission belt that is rotatably connected to the transmission rod is provided on the outer surface of the pulley.

[0007] The above technical solution involves a transmission belt that is rotatably connected to the transmission rod on the outer surface of the pulley. When the stepper motor is started, the output shaft of the stepper motor drives the pulley to rotate, which in turn causes the transmission belt to drive the transmission rod to rotate, thereby performing the core extraction operation.

[0008] Preferably, the support assembly includes a support base, a second handwheel is provided on the side of the support base away from the base, a second screw is fixedly installed on the end of the second handwheel near the support base, a slider is rotatably connected to the end of the second screw away from the second handwheel, a limiting rod is provided on the inner surface of the slider and fixedly installed on the base, and two sets of support feet are symmetrically installed on the end of the slider away from the base.

[0009] The above technical solution incorporates a support component, which improves the overall stability of the device during core extraction.

[0010] Preferably, the limiting rods are provided in two identical sets, the two sets of limiting rods are symmetrically distributed on the inner side of the slider, and the two sets of limiting rods are slidably connected to the slider, and the end of the slider away from the slider of the two sets of sliders is fixedly installed with a limiting plate.

[0011] The above technical solution uses two sets of symmetrically distributed limiting rods that slide in a way that guides the slider. The limiting plates fixedly installed at the bottom of the two sets of limiting rods effectively prevent the slider from falling off during the sliding process.

[0012] Preferably, the support components are provided in two identical sets, and the two sets of support components are symmetrically distributed on the top of the base.

[0013] The above technical solution provides stable support for the core drilling device by setting two sets of symmetrically distributed support components. Furthermore, the height of the extended support feet of the two sets of support components can be flexibly adjusted to avoid the device tilting or shaking due to uneven force, thereby improving core drilling efficiency.

[0014] Preferably, the cross-section of the guide block is the same as the cross-section of the mounting groove, the guide block and the mounting groove are plugged in, a fixing screw is provided on the side of the transmission rod away from the core drill body, and a locking nut that is threadedly connected to the fixing screw is provided on the side of the connecting seat away from the transmission rod.

[0015] The above technical solution, with its plug-in installation design using guide blocks and mounting slots, facilitates quick alignment and installation of the core drill body and transmission rod, reducing trial and error during installation and improving installation efficiency. Combined with fixing screws and locking nuts, it effectively enhances the connection strength between the core drill body and the transmission rod. Furthermore, the plug-in installation method facilitates quick disassembly of the core drill body and the transmission rod, making it easier for later maintenance and replacement.

[0016] Preferably, the core drill body is configured as a cylindrical structure, and the core drill body has a cavity inside for placing the core sample.

[0017] The above technical solution, by setting the core drill body to a cylindrical structure with an internal cavity for placing the core sample, helps the core drill body to remain stable during road drilling, improving the core sampling success rate. During the core sampling process, the obtained core sample can be effectively placed in the cavity of the core drill body, facilitating subsequent core sample testing and analysis.

[0018] Compared with the prior art, this utility model provides a road surface core drilling device for supervision, which has the following beneficial effects: 1. The road coring drill device for supervision allows workers to manually adjust the extension height of the support legs until they are in close contact with the ground, according to the actual road conditions. This improves the stability of the device during operation. By setting two sets of symmetrically distributed support components, the device can be provided with stable support force. Furthermore, the extension height of the two sets of support legs can be flexibly adjusted to meet different road conditions, preventing the device from tilting or shaking due to uneven force and improving coring efficiency. 2. This road surface core drilling device for supervision uses a plug-in installation design with guide blocks and mounting slots, which facilitates quick alignment and installation of the core drill body and transmission rod, reduces trial and error during installation, and improves installation efficiency. With the help of fixing screws and locking nuts, the connection strength between the core drill body and the transmission rod can be effectively enhanced. The plug-in installation method also facilitates quick disassembly of the core drill body and the transmission rod, making it convenient for later maintenance and replacement. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the installation structure of the support component and the base of this utility model; Figure 4 This is a schematic diagram showing the disassembled structure of the core drill body and the transmission rod of this utility model; Figure 5 This is a three-dimensional structural diagram of the support component of this utility model.

[0020] The components are as follows: 1. Base; 2. Handle; 3. Caster wheel; 4. Guide column; 5. Top plate; 6. Handwheel 1; 7. Screw 1; 8. Moving block; 9. Fixed seat; 10. Transmission rod; 11. Mounting slot; 12. Core drill body; 13. Connecting seat; 14. Guide block; 15. Fixing screw; 16. Locking nut; 17. Stepper motor; 18. Pulley; 19. Transmission belt; 20. Support assembly; 2001. Support seat; 2002. Handwheel 2; 2003. Screw 2; 2004. Slider; 2005. Limiting rod; 2006. Limiting plate; 2007. Support foot. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1: As Figure 1-5As shown, the road core drilling device for supervision provided by this utility model includes a base 1, a handle 2, and a caster wheel 3 located at the bottom of the base 1. A guide post 4 is fixedly installed at the top of the base 1 away from the handle 2. A top plate 5 is fixedly installed at the top of the guide post 4 away from the base 1. A handwheel 6 is provided on the side of the top plate 5 away from the base 1. A screw 7 is fixedly installed at the end of the handwheel 6 near the top plate 5. A moving block 8 is provided on the side of the top plate 5 near the base 1. A fixed seat 9 is fixedly installed at the end of the moving block 8 away from the handle 2. A transmission rod 10 is rotatably installed at the end of the fixed seat 9 near the base 1. An installation groove 11 is opened at the end of the transmission rod 10 away from the fixed seat 9. A core drilling body 12 is provided on the side of the transmission rod 10 away from the fixed seat 9. A connecting seat 13 is fixedly installed at the end of the core drilling body 12 near the transmission rod 10. A guide block 14 is fixedly installed at the end of the connecting seat 13 near the transmission rod 10. A support assembly 20 is provided on the top of the base 1 between the handle 2 and the guide post 4.

[0023] Specifically, a stepper motor 17 is installed on the side of the movable block 8 away from the fixed base 9. A pulley 18 is fixedly mounted on the output shaft of the stepper motor 17, and a transmission belt 19, which is rotatably connected to the transmission rod 10, is provided on the outer surface of the pulley 18. The advantage is that, through the transmission belt 19 rotatably connected to the transmission rod 10 on the outer surface of the pulley 18, when the stepper motor 17 is started, the output shaft of the stepper motor 17 drives the pulley 18 to rotate, which in turn causes the transmission belt 19 to drive the transmission rod 10 to rotate, thereby performing the core extraction operation.

[0024] Specifically, the support assembly 20 includes a support base 2001. A handwheel 2002 is located on the side of the support base 2001 away from the base 1. A screw 2003 is fixedly installed at the end of the handwheel 2002 near the support base 2001. A slider 2004 is rotatably connected to the end of the screw 2003 away from the handwheel 2002. A limiting rod 2005, which is fixedly installed to the base 1, is provided on the inner surface of the slider 2004. Two sets of support feet 2007 are symmetrically installed at the end of the slider 2004 away from the base 1. The advantage is that the support assembly 20 improves the overall stability of the device during core extraction.

[0025] Specifically, two identical sets of limiting rods 2005 are provided, symmetrically distributed inside the slider 2004, and both sets of limiting rods 2005 are slidably connected to the slider 2004. A limiting plate 2006 is fixedly installed at the end of each slider 2004 away from the slider 2004. The advantage is that the slidable connection between the two symmetrically distributed limiting rods 2005 and the slider 2004 guides the slider 2004, and the fixed installation of the limiting plate 2006 at the bottom of the two sets of limiting rods 2005 effectively prevents the slider 2004 from falling off during sliding.

[0026] Example 2: Figure 2-5 As shown, this is an improvement on the previous embodiment.

[0027] Specifically, the support components 20 are provided in two identical sets, which are symmetrically distributed on the top of the base 1. The advantage is that by setting two symmetrically distributed sets of support components 20, a stable supporting force can be provided for the core drilling device. Furthermore, the height of the extended support feet 2007 of the two sets of support components 20 can be flexibly adjusted to adapt to different road conditions, preventing the device from tilting or swaying due to uneven force and improving core drilling efficiency.

[0028] Specifically, the cross-section of the guide block 14 is the same as the cross-section of the mounting groove 11. The guide block 14 and the mounting groove 11 are plug-in installed. A fixing screw 15 is provided on the side of the transmission rod 10 away from the core drill body 12, and a locking nut 16 threadedly connected to the fixing screw 15 is provided on the side of the connecting seat 13 away from the transmission rod 10. The advantage is that the plug-in installation design of the guide block 14 and the mounting groove 11 facilitates the quick alignment and installation of the core drill body 12 and the transmission rod 10, reduces trial and error during installation, and improves installation efficiency. In addition, the fixing screw 15 and the locking nut 16 effectively enhance the connection strength between the core drill body 12 and the transmission rod 10. Furthermore, the plug-in installation method also facilitates the quick disassembly of the core drill body 12 and the transmission rod 10, making it convenient for later maintenance and replacement.

[0029] Specifically, the core drill body 12 is configured as a cylindrical structure, and the core drill body 12 has an internal cavity for placing the core sample. The advantage is that by configuring the core drill body 12 as a cylindrical structure with an internal cavity for placing the core sample, the cylindrical structure helps the core drill body 12 maintain stability during road drilling, improving the core sampling success rate. Furthermore, during the core sampling process, the obtained core sample can be effectively placed within the cavity of the core drill body 12, facilitating subsequent core sample testing and analysis.

[0030] Working Principle: During use, the universal wheels 3 at the bottom of the base 1 allow for easy movement of the core-taking device, facilitating core taking in different areas and reducing operator workload. The universal wheels 3 also have a self-locking function, providing initial positioning of the device. Subsequently, based on the actual road conditions, the operator rotates handwheel 2002, causing screw 2003 to rotate, which in turn drives slider 2004 to slide on limit rod 2005, adjusting the height of support foot 2007. This allows the device to adapt to different road conditions, preventing tilting or wobbling due to uneven force and improving core-taking efficiency. Finally, the guide block 14 and mounting groove 11 are designed for plug-in installation, facilitating quick alignment and installation of the core drill body 12 and transmission rod 10, reducing installation time... By experimenting and improving installation efficiency, and by using fixing screws 15 and locking nuts 16, the connection strength between the core drill body 12 and the transmission rod 10 can be effectively enhanced. The plug-in installation method also facilitates the quick disassembly of the core drill body 12 and the transmission rod 10, making it easier for later maintenance and replacement. Then, the stepper motor 17 is started. The output shaft of the stepper motor 17 drives the pulley 18 to rotate, which in turn causes the transmission belt 19 to drive the transmission rod 10 to rotate, thereby performing the core extraction work. By setting the core drill body 12 to a cylindrical structure with an internal cavity for placing the core sample, the cylindrical structure helps the core drill body 12 to remain stable during road drilling, improving the success rate of core extraction. During the core extraction process, the obtained core sample can be effectively placed in the cavity of the core drill body 12, which facilitates subsequent core sample testing and analysis.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A road surface core drilling device for supervision, comprising a base (1), a handle (2), and a caster wheel (3) located at the bottom of the base (1), characterized in that: A guide post (4) is fixedly installed at the top of the base (1) away from the handle (2). A top plate (5) is fixedly installed at the end of the guide post (4) away from the base (1). A handwheel (6) is provided on the side of the top plate (5) away from the base (1). A screw (7) is fixedly installed at the end of the handwheel (6) near the top plate (5). A moving block (8) is provided on the side of the top plate (5) near the base (1). A fixed seat (9) is fixedly installed at the end of the moving block (8) away from the handle (2). The fixed seat (9) is located near the base (1). A transmission rod (10) is rotatably mounted on one end of the base (1). An installation groove (11) is provided on the end of the transmission rod (10) away from the fixed seat (9). A core drill body (12) is provided on the side of the transmission rod (10) away from the fixed seat (9). A connecting seat (13) is fixedly mounted on the end of the core drill body (12) near the transmission rod (10). A guide block (14) is fixedly mounted on the end of the connecting seat (13) near the transmission rod (10). A support assembly (20) is provided on the top of the base (1) between the handle (2) and the guide post (4).

2. The road surface core drilling device for supervision as described in claim 1, characterized in that: A stepper motor (17) is provided on the side of the moving block (8) away from the fixed base (9). A pulley (18) is fixedly installed on the output shaft of the stepper motor (17). A transmission belt (19) is provided on the outer surface of the pulley (18) and is rotatably connected to the transmission rod (10).

3. The road surface core drilling device for supervision as described in claim 1, characterized in that: The support assembly (20) includes a support base (2001), a handwheel (2002) is provided on the side of the support base (2001) away from the base (1), a screw (2003) is fixedly installed on the end of the handwheel (2002) near the support base (2001), a slider (2004) is rotatably connected to the end of the screw (2003) away from the handwheel (2002), a limiting rod (2005) is provided on the inner surface of the slider (2004) and fixedly installed on the base (1), and two sets of support feet (2007) are symmetrically installed on the end of the slider (2004) away from the base (1).

4. The road surface core drilling device for supervision according to claim 3, characterized in that: The limiting rods are provided in two identical sets. The two sets of limiting rods (2005) are symmetrically distributed on the inner side of the slider (2004), and the two sets of limiting rods (2005) and the slider (2004) are slidably connected. The end of the two sets of sliders (2004) away from the slider (2004) is fixedly installed with a limiting plate (2006).

5. The road surface core drilling device for supervision according to claim 1, characterized in that: The support components (20) are provided in two identical sets, and the two sets of support components (20) are symmetrically distributed on the top of the base (1).

6. The road surface core drilling device for supervision according to claim 1, characterized in that: The cross-section of the guide block (14) is the same as the cross-section of the mounting groove (11). The guide block (14) and the mounting groove (11) are plugged in. A fixing screw (15) is provided on the side of the transmission rod (10) away from the core drill body (12). A locking nut (16) that is threadedly connected to the fixing screw (15) is provided on the side of the connecting seat (13) away from the transmission rod (10).

7. The road surface core drilling device for supervision according to claim 1, characterized in that: The core drill body (12) is configured as a cylindrical structure, and the core drill body (12) has a cavity inside for placing the core sample.

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