A prefabricated concrete inspection well rapid opening device

Abstract

The utility model discloses a prefabricated concrete inspection well quick trepanning device, including base, top is equipped with to bear inspection well with the support disc of opposite rotation of base, be equipped with first hoop and second hoop on the support disc, and the bottom of first hoop and second hoop all are hinged with the support disc, and the both sides of first hoop and the both sides of second hoop all are connected fixed through locking assembly, and all be equipped with a plurality of hydraulic clamping pieces on first hoop and second hoop, and the hydraulic clamping piece all are along the radial direction of support disc and move to each other or each other far apart, drilling assembly, is located in the either side of base, and the drilling end of drilling assembly is along the height direction of base and moves to the base or is away from the base, and is along the radial direction of support disc and moves to the support disc or is away from the support disc, to the inspection well trepanning of being located on the support disc. The utility model can improve the stability of prefabricated concrete inspection well trepanning, and ensure trepanning quality and construction safety.

Description

Technical Field

[0001] This utility model relates to the field of mechanical equipment technology, and in particular to a rapid drilling device for precast concrete inspection wells. Background Technology

[0002] To achieve a precise and sealed connection with the complex underground piping system, thus forming a complete, efficient, and maintainable underground pipeline network, several openings need to be made in the precast concrete manholes. Currently, when using drilling devices to create openings in precast concrete manholes, two workers often manually hold the drilling machine to counteract the instantaneous torque when the drill bit starts and the continuous vibration during the drilling process.

[0003] While manually holding the drilling machine can enable the drilling of precast concrete manholes, it has several drawbacks: under vibration and downward pressure, the drill bit is prone to slippage, making precise positioning difficult and leading to deviations in the drilling position; it is also difficult to ensure that the drill bit axis is always perpendicular to the curved well wall, making it easy to drill oblique holes, which makes subsequent pipeline installation difficult and results in poor sealing; and if the drill bit gets stuck, the huge counter-torque can cause the machine to suddenly reverse, which can easily cause wrist sprains or other more serious personal injuries to the operator.

[0004] Therefore, it is urgent to research and develop a rapid drilling device for precast concrete inspection wells to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this invention is to provide a rapid drilling device for precast concrete inspection wells, which can improve the stability of drilling in precast concrete inspection wells and ensure drilling quality and construction safety.

[0006] To achieve the above objectives, this utility model provides a rapid drilling device for precast concrete inspection wells, the specific implementation of which is as follows:

[0007] A quick-drilling device for precast concrete inspection wells includes a base and a support plate on top for supporting the inspection well, the support plate rotating relative to the base;

[0008] The support plate is provided with a first clamp and a second clamp. The bottom of the first clamp and the second clamp are both hinged to the support plate. The two sides of the first clamp and the two sides of the second clamp are connected and fixed by a locking assembly. The first clamp and the second clamp are each provided with a number of hydraulic clamping components. The hydraulic clamping components move along the radial direction of the support plate to move closer to each other or further away from each other to clamp the inspection well located on the support plate.

[0009] A drilling assembly is provided on either side of the base. The drilling end of the drilling assembly moves closer to or away from the base along the height direction of the base, and moves closer to or away from the support plate along the radial direction of the support plate, so as to drill a hole in the inspection well located on the support plate.

[0010] This utility model discloses a rapid drilling device for precast concrete inspection wells. Compared with existing technologies, it features a first clamp and a second clamp hinged to a support plate. The first and second clamps are connected and fixed by a locking assembly. Several hydraulic clamping components on the first and second clamps securely hold the inspection well placed on the support plate, improving the stability of the inspection well during drilling and thus enhancing drilling quality and efficiency. Furthermore, the relative rotation of the support plate on the base, combined with the movement of the drilling assembly in the height direction of the base and the radial direction of the support plate, allows for drilling at different locations on the inspection well, improving the convenience and accuracy of drilling. Compared to the traditional method of manually holding the drilling machine, this device enhances construction safety.

[0011] In some embodiments, the locking assembly includes a locking cylinder, a locking pin, and a pin hole seat. The locking cylinder is fixed to both sides of a first clamp or a second clamp, and the pin hole seat is fixed to both sides of a second clamp or a first clamp. The locking pin is located at the movable end of the locking cylinder, and the locking cylinder drives the locking pin to be inserted into or pulled out of the pin hole seat.

[0012] By using a locking cylinder to drive the locking pin to insert or remove from the pin hole seat, the connection and locking between the first clamp and the second clamp can be switched to be separated. This improves the ease of clamping the manhole with the first and second clamps, thereby increasing the clamping efficiency of the manhole. The strong linear thrust provided by the locking cylinder ensures that the locking pin and the pin hole seat are tightly fitted, providing extremely high connection rigidity and locking force for the entire clamp ring. This effectively resists the huge radial expansion force generated by the hydraulic clamping components, thereby further enhancing the overall fixing stability of the manhole.

[0013] In some embodiments, the second clamp or the first clamp is provided with a guide sleeve, which is located on the side of the pin hole seat near the locking pin. When the first clamp and the second clamp are engaged, the guide sleeve is fitted onto the locking pin to guide the locking pin into the pin hole seat.

[0014] By using a guide sleeve to guide the locking pin into the pin hole seat, it is ensured that when the clamp is closed, even with minor manufacturing errors or misalignment, the locking pin can slide smoothly and accurately into the pin hole seat under the guidance of the guide sleeve. This effectively avoids collision, jamming, or damage between the pin and the hole, improves the smoothness and reliability of operation, protects the locking components, and extends their service life.

[0015] In some embodiments, a gantry frame is provided on either side of the base, and the drilling assembly is provided on the gantry frame. The drilling assembly includes a lifting part, a moving part, a drilling motor, and a drill bit. The lifting part is fixed on the gantry frame, the moving part is connected to the movable end of the lifting part, the drilling motor is located on the movable end of the moving part, and the drill bit is drivenly connected to the motor shaft of the drilling motor.

[0016] By setting up a gantry frame and fixing it to the base, an independent, highly rigid, and highly stable support platform is established for the drilling assembly. The drilling assembly is decomposed into a lifting part and a moving part, which control the movement of the drill bit in the vertical and radial directions, respectively. This achieves precise two-dimensional positioning of the drill bit relative to the fixed inspection well. During use, the cutting force during drilling can be directly transmitted to the base through the gantry frame, effectively isolating vibration and ensuring the smoothness of the drill bit feed, thereby greatly improving the positional accuracy and processing quality of the hole.

[0017] In some embodiments, the lifting unit includes a lifting motor, a lifting screw, and a lifting block. The lifting motor is located at the center of the gantry frame and is fixedly connected to the base. The motor shaft of the lifting motor is drivenly connected to the lifting screw. The lifting screw extends along the axial direction of the support plate. The lifting block is sleeved on the lifting screw. The lifting block is the movable end of the lifting unit and is screwed to the lifting screw. The moving part is provided on the lifting block.

[0018] The rotational motion of the lifting motor is converted into the precise linear motion of the lifting block by the interconnected structure of the lifting screw and the lifting block. This transmission method has a self-locking characteristic and can be locked at any position, ensuring the positioning stability of the drill bit in the height direction and preventing it from falling due to its own weight or vibration. Placing the power source (lifting motor) at the center of the gantry makes the structure more evenly stressed.

[0019] In some embodiments, the moving part includes a moving motor, a moving screw, and a moving plate. The moving motor is fixed on the lifting block, and the moving screw is drivenly connected to the motor shaft of the moving motor. The moving screw extends in the radial direction of the support plate. The bottom of the moving plate has a moving block sleeved on the moving screw. The moving block is screwed to the moving screw. The moving plate is the movable end of the moving part, and the drilling motor is provided on the moving plate.

[0020] By employing a structure consisting of a moving motor, a moving screw, and a moving plate as the moving part, the drill bit can be advanced towards the well wall at a constant and stable speed, which is crucial for obtaining a smooth borehole wall. The uniform mechanical feed completely avoids the instability and uncertainty of manual feed, thoroughly eliminating problems such as borehole edge chipping and drill bit jamming. This not only improves the quality of the borehole opening but also eliminates the safety risks of drill bit breakage and violent equipment vibration caused by unstable feed.

[0021] In some embodiments, the bottom of the base is provided with a drive motor that is pulsatorically connected to the support plate. The motor shaft of the drive motor is provided with a drive gear. The bottom of the support plate is provided with a connecting boss that extends through the base to the bottom of the base. The drive gear is embedded in the engagement hole of the connecting boss and meshes with the inner peripheral wall of the engagement hole to drive the support plate to rotate relative to the base in the circumferential direction of the base.

[0022] The drive motor, via a drive gear, rotates the entire support plate and the manhole fixed on it. This allows operators to easily rotate the manhole to any circumferential position to align it with the drill bit after it has been fixed, achieving precise and labor-saving adjustment of the manhole angle. It eliminates the arduous task of manually carrying and rotating heavy manholes, significantly reducing labor intensity and improving the efficiency and accuracy of angle positioning.

[0023] In some embodiments, the base has several legs at its bottom, and the distance between the bottom of the legs and the bottom of the base is adjustable.

[0024] By adjusting the height of each leg, the entire drilling device can adapt to various uneven construction site surfaces and precisely adjust the base to a horizontal state, ensuring that the drilling axis is perpendicular to the horizontal plane.

[0025] In some embodiments, each of the legs has a support plate at its bottom.

[0026] By adding support plates to the bottom of the adjustable outriggers, the contact area between the outriggers and the ground is increased, effectively reducing the pressure of the equipment on the ground and preventing it from sinking on soft surfaces. At the same time, the larger contact area also enhances the equipment's anti-overturning stability, especially when drilling generates large torque, further improving the safety of the construction process.

[0027] In some embodiments, the base is provided with adjustment screw holes at the four corners, and each of the legs is provided with an adjustment screw at the top, the adjustment screw being screwed into the adjustment screw hole.

[0028] The height of the outriggers is adjusted by using an adjusting screw and adjusting screw hole. The self-locking characteristic of the threaded pair is used for fine adjustment. The structure has high adjustment accuracy and can automatically lock after adjustment without the need for an additional locking device, thus improving the reliability and stability of adjustment.

[0029] Based on the above technical solution, this utility model has the following beneficial effects compared with the prior art:

[0030] The support plate is hinged with a first clamp and a second clamp, which are connected and fixed by a locking assembly. Several hydraulic clamping components on the first and second clamps securely hold the inspection well placed on the support plate, improving the stability of the inspection well during drilling, thereby improving drilling quality and efficiency. Furthermore, the relative rotation of the support plate on the base, combined with the drilling assembly's movement along the height of the base and its radial direction along the support plate, allows for drilling at different locations on the inspection well, improving the convenience and accuracy of drilling. Compared to the traditional method of manually holding the drilling machine, this enhances construction safety. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of this utility model;

[0032] Figure 2 This is a schematic diagram of the open structure of the clamp of this utility model;

[0033] Figure 3 This is a schematic diagram of the drilling assembly of this utility model.

[0034] Explanation of reference numerals in the attached figures:

[0035] 100. Base; 110. Support plate; 111. Connecting boss; 120. First clamp; 130. Second clamp; 140. Hydraulic clamping component; 150. Gantry frame; 160. Drive motor; 161. Drive gear; 170. Outrigger; 171. Adjusting screw; 172. Support plate; 200. Locking assembly; 210. Locking cylinder; 220. Locking pin; 230. Pin hole seat; 240. Guide sleeve; 300. Drilling assembly; 310. Lifting part; 311. Lifting motor; 312. Lifting screw; 313. Lifting block; 314. Lifting guide rod; 320. Moving part; 321. Moving motor; 322. Moving screw; 323. Moving plate; 324. Moving guide rod; 330. Drilling motor; 340. Drill bit. Detailed Implementation

[0036] To facilitate understanding of this utility model, the specific embodiments of this utility model will be described in more detail below with reference to the accompanying drawings.

[0037] Unless otherwise specified or defined, the terms "first," "second," etc., used in this document are for distinguishing names only and do not represent a specific number or order.

[0038] Unless otherwise stated or defined, the term “and / or” as used herein includes any and all combinations of one or more of the associated listed items.

[0039] It should be noted that in this article, "fixed to" or "connected to" can mean directly fixed to or connected to a component, or indirectly fixed to or connected to a component.

[0040] like Figure 1-3 As shown, the precast concrete inspection well quick opening device provided in this embodiment includes a base 100 and a support plate 110 on the top for supporting the inspection well. The support plate 110 rotates relative to the base 100.

[0041] The support plate 110 is provided with a first clamp 120 and a second clamp 130. The bottom of the first clamp 120 and the second clamp 130 are both hinged to the support plate 110. The two sides of the first clamp 120 and the two sides of the second clamp 130 are connected and fixed by a locking assembly 200. The first clamp 120 and the second clamp 130 are each provided with a plurality of hydraulic clamping parts 140. The hydraulic clamping parts 140 move together or away from each other in the radial direction of the support plate 110 to clamp the inspection well located on the support plate 110.

[0042] A drilling assembly 300 is disposed on any side of the base 100. The drilling end of the drilling assembly 300 moves closer to or away from the base 100 along the height direction of the base 100 and moves closer to or away from the support plate 110 along the radial direction of the support plate 110 to drill a hole in the inspection well located on the support plate 110.

[0043] The hydraulic clamping component 140 described in this embodiment uses a hydraulic cylinder in conjunction with a flexible clamping plate structure on the movable end of the hydraulic cylinder to clamp and fix the inspection well.

[0044] In this embodiment, the hinge structure between the first clamp 120 and the second clamp 130 and the support plate 110 is achieved by mounting a hinge shaft (not shown in the figure, the same below) on the support plate 110, and the first clamp 120 and the second clamp 130 are hinged to the hinge shaft.

[0045] In some embodiments, the locking assembly 200 includes a locking cylinder 210, a locking pin 220, and a pin hole seat 230. The locking cylinder 210 is fixed to both sides of the first clamp 120 or the second clamp 130, and the pin hole seat 230 is fixed to both sides of the second clamp 130 or the first clamp 120. The locking pin 220 is located at the movable end of the locking cylinder 210, and the locking cylinder 210 drives the locking pin 220 to be inserted into or pulled out of the pin hole seat 230.

[0046] By using a locking cylinder 210 to drive the locking pin 220 to insert or pull out the pin hole seat 230, the connection and locking between the first clamp 120 and the second clamp 130 can be switched to be separated. This improves the ease of clamping the manhole with the first clamp 120 and the second clamp 130, thereby improving the clamping efficiency of the manhole. The strong linear thrust provided by the locking cylinder 210 ensures that the locking pin 220 and the pin hole seat 230 are tightly fitted, providing extremely high connection rigidity and locking force for the entire clamp ring. This effectively resists the huge radial expansion force generated by the hydraulic clamping component 140, thereby further enhancing the overall fixing stability of the manhole.

[0047] In some embodiments, the second clamp 130 or the first clamp 120 is provided with a guide sleeve 240, which is located on the side of the pin hole seat 230 near the locking pin 220. When the first clamp 120 and the second clamp 130 are engaged, the guide sleeve 240 is sleeved on the locking pin 220 to guide the locking pin 220 into the pin hole seat 230.

[0048] By using a guide sleeve 240 to guide the locking pin 220 into the pin hole seat 230, it is ensured that when the clamp is closed, even with minor manufacturing errors or alignment deviations, the locking pin 220 can slide smoothly and accurately into the pin hole seat 230 under the guidance of the guide sleeve 240. This effectively avoids collision, jamming, or damage between the pin and the hole, improves the smoothness and reliability of operation, protects the locking assembly 200, and extends its service life.

[0049] In some embodiments, a gantry frame 150 is provided on any side of the base 100, and the drilling assembly 300 is provided on the gantry frame 150. The drilling assembly 300 includes a lifting part 310, a moving part 320, a drilling motor 330, and a drill bit 340. The lifting part 310 is fixed on the gantry frame 150, the moving part 320 is connected to the movable end of the lifting part 310, the drilling motor 330 is located on the movable end of the moving part 320, and the drill bit 340 is drively connected to the motor shaft of the drilling motor 330.

[0050] By setting up the gantry 150 and fixing it to the base 100, an independent, high-rigidity, and high-stability support platform is established for the drilling assembly 300. The drilling assembly 300 is decomposed into a lifting part 310 and a moving part 320, which control the movement of the drill bit 340 in the vertical and radial directions, respectively. This achieves precise two-dimensional positioning of the drill bit 340 relative to the fixed inspection well. During use, the cutting force during drilling can be directly transmitted to the base 100 through the gantry 150, effectively isolating vibration and ensuring the smoothness of the drill bit 340's feed, thereby greatly improving the positional accuracy and processing quality of the hole.

[0051] In some embodiments, the lifting part 310 includes a lifting motor 311, a lifting screw 312, and a lifting block 313. The lifting motor 311 is located at the center of the gantry frame 150 and is fixedly connected to the base 100. The motor shaft of the lifting motor 311 is connected to the lifting screw 312. The lifting screw 312 extends along the axial direction of the support plate 110. The lifting block 313 is sleeved on the lifting screw 312. The lifting block 313 is the movable end of the lifting part 310 and is screwed to the lifting screw 312. The moving part 320 is provided on the lifting block 313.

[0052] The rotational motion of the lifting motor 311 is converted into the precise linear motion of the lifting block 313 by the screw connection between the lifting screw 312 and the lifting block 313. This transmission method has a self-locking characteristic and can be locked at any position, ensuring the positioning stability of the drill bit 340 in the height direction and preventing it from falling due to its own weight or vibration. Placing the power source (lifting motor 311) at the center of the gantry 150 makes the structure more evenly stressed.

[0053] Specifically, lifting guide rods 314 are also provided on both sides of the lifting screw 312. The top of the lifting guide rod 314 is connected and fixed to the gantry frame 150, and the bottom is connected to the base 100. Both sides of the lifting block 313 are connected to the lifting guide rods 314 through a plate and bushing structure. By using the two lifting guide rods 314 and the plate and bushing structure, the lifting block 313 can only move in the axial direction of the lifting screw 312 under the rotation of the lifting screw 312, so as to realize the height adjustment of the moving part 320.

[0054] In some embodiments, the moving part 320 includes a moving motor 321, a moving screw 322, and a moving plate 323. The moving motor 321 is fixed on the lifting block 313. The motor shaft of the moving motor 321 is drivenly connected to the moving screw 322. The moving screw 322 extends in the radial direction of the support plate 110. The bottom of the moving plate 323 has a moving block sleeved on the moving screw 322. The moving block is screwed to the moving screw 322. The moving plate 323 is the movable end of the moving part 320. The drilling motor 330 is provided on the moving plate 323.

[0055] By employing a structure consisting of a moving motor 321, a moving screw 322, and a moving plate 323 as the moving part 320, the drill bit 340 can be advanced towards the well wall at a constant and stable speed, which is crucial for obtaining a smooth borehole wall. The uniform mechanical feed completely avoids the instability and uncertainty of manual feed, thoroughly eliminating problems such as borehole edge chipping and drill bit 340 jamming. This not only improves the borehole quality but also eliminates the safety risks of drill bit 340 breakage and violent equipment vibration caused by unstable feed.

[0056] Similarly, moving guide rods 324 need to be provided on both sides of the moving screw 322. The moving guide rods 324 are fixed on the top two sides of the lifting block 313. The bottom of the moving plate 323 is connected to the moving guide rods 324 through bushings. The moving guide rods 324, together with the limiting effect of the lifting block 313, enable the moving plate 323 to move in the axial direction of the moving screw 322 under the drive of the moving motor 321.

[0057] In some embodiments, the bottom of the base 100 is provided with a drive motor 160 that is pulsatorically connected to the support plate 110. The motor shaft of the drive motor 160 is provided with a drive gear 161. The bottom of the support plate 110 is provided with a connecting boss 111. The connecting boss 111 extends through the base 100 to the bottom of the base 100. The drive gear 161 is embedded in the engagement hole of the connecting boss 111. The drive gear 161 meshes with the inner peripheral wall of the engagement hole to drive the support plate 110 to rotate relative to the base 100 in the circumferential direction of the base 100.

[0058] The drive motor 160, via drive gear 161, rotates the entire support plate 110 and the manhole fixed on it. This allows the operator to easily rotate the manhole to any circumferential position to align it with the drill bit 340 after fixing it, achieving precise and labor-saving adjustment of the manhole angle. It eliminates the arduous labor of manually carrying and rotating heavy manholes, significantly reducing labor intensity and improving the efficiency and accuracy of angle positioning.

[0059] In some embodiments, the bottom of the base 100 is provided with a plurality of legs 170, and the distance between the bottom of the legs 170 and the bottom of the base 100 is adjustable.

[0060] By adjusting the height of each support leg 170, the entire drilling device can adapt to various uneven construction site surfaces, and the base 100 can be precisely adjusted to a horizontal state to ensure that the drilling axis is perpendicular to the horizontal plane.

[0061] In some embodiments, each of the legs 170 has a support plate 172 at its bottom.

[0062] By adding a support plate 172 to the bottom of the adjustable outrigger 170, the contact area between the outrigger 170 and the ground is increased, which effectively reduces the pressure of the equipment on the ground and prevents it from sinking on soft surfaces. At the same time, the larger contact area also enhances the equipment's anti-overturning stability, especially when drilling generates large torque, further improving the safety of the construction process.

[0063] In some embodiments, the base 100 is provided with adjustment screw holes at all four corners (not shown in the figure, the same below), and each of the legs is provided with an adjustment screw 171 at the top, the adjustment screw 171 being screwed into the adjustment screw hole.

[0064] The height of the outrigger 170 is adjusted by using an adjusting screw 171 and an adjusting screw hole. The self-locking characteristic of the threaded pair is used for fine adjustment. The structure has high adjustment accuracy and can automatically lock after adjustment without the need for an additional locking device, thus improving the reliability and stability of adjustment.

[0065] The precast concrete manhole rapid drilling device provided in this embodiment, compared with the prior art, uses a first clamp 120 and a second clamp 130 hinged on a support plate 110. The first clamp 120 and the second clamp 130 are connected and fixed by a locking component 200. With the cooperation of several hydraulic clamping components 140 set on the first clamp 120 and the second clamp 130, the manhole placed on the support plate 110 is firmly clamped, which improves the stability of the manhole when the drilling component 300 drills the manhole, thereby improving the drilling quality and drilling efficiency. Furthermore, by the relative rotation between the support plate 110 and the base 100, and the movement of the drilling component 300 in the height direction of the base 100 and the radial direction of the support plate 110, drilling can be performed on different positions of the manhole, improving the convenience and accuracy of drilling. Compared with the traditional method of manually holding the drilling machine, the safety of construction is improved.

[0066] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A precast concrete inspection chamber rapid opening device, characterised in that, Includes a base (100) and a top support plate (110) for supporting the inspection well. The support plate (110) rotates relative to the base (100). The support plate (110) is provided with a first clamp (120) and a second clamp (130). The bottom of the first clamp (120) and the second clamp (130) are both hinged to the support plate (110). The two sides of the first clamp (120) and the two sides of the second clamp (130) are connected and fixed by a locking assembly (200). The first clamp (120) and the second clamp (130) are each provided with a plurality of hydraulic clamping parts (140). The hydraulic clamping parts (140) move along the radial direction of the support plate (110) to move closer to each other or further away from each other, so as to clamp the inspection well located on the support plate (110). A drilling assembly (300) is provided on either side of the base (100). The drilling end of the drilling assembly (300) moves closer to or away from the base (100) along the height direction of the base (100) and moves closer to or away from the support plate (110) along the radial direction of the support plate (110) to drill a hole in a manhole located on the support plate (110).

2. The precast concrete inspection shaft quick penetration device of claim 1, wherein, The locking assembly (200) includes a locking cylinder (210), a locking pin (220), and a pin hole seat (230). The locking cylinder (210) is fixed on both sides of the first clamp (120) or the second clamp (130). The pin hole seat (230) is fixed on both sides of the second clamp (130) or the first clamp (120). The locking pin (220) is located at the movable end of the locking cylinder (210). The locking cylinder (210) drives the locking pin (220) to be inserted into or pulled out of the pin hole seat (230).

3. The precast concrete inspection shaft quick penetration device of claim 2, wherein, The second clamp (130) or the first clamp (120) is provided with a guide sleeve (240). The guide sleeve (240) is located on the side of the pin hole seat (230) near the locking pin (220). When the first clamp (120) and the second clamp (130) are engaged, the guide sleeve (240) is sleeved on the locking pin (220) to guide the locking pin (220) into the pin hole seat (230).

4. The rapid drilling device for precast concrete inspection wells as described in any one of claims 1-3, characterized in that, A gantry frame (150) is provided on either side of the base (100), and the drilling assembly (300) is provided on the gantry frame (150). The drilling assembly (300) includes a lifting part (310), a moving part (320), a drilling motor (330), and a drill bit (340). The lifting part (310) is fixed on the gantry frame (150), the moving part (320) is connected to the movable end of the lifting part (310), the drilling motor (330) is located on the movable end of the moving part (320), and the drill bit (340) is connected to the motor shaft of the drilling motor (330) via a drive connection.

5. The precast concrete inspection shaft quick penetration device of claim 4, wherein, The lifting part (310) includes a lifting motor (311), a lifting screw (312), and a lifting block (313). The lifting motor (311) is located at the center of the gantry frame (150) and is fixedly connected to the base (100). The motor shaft of the lifting motor (311) is connected to the lifting screw (312) for transmission. The lifting screw (312) extends along the axial direction of the support plate (110). The lifting block (313) is sleeved on the lifting screw (312). The lifting block (313) is the movable end of the lifting part (310) and is screwed to the lifting screw (312). The moving part (320) is provided on the lifting block (313).

6. The precast concrete inspection shaft quick penetration device of claim 5, wherein, The moving part (320) includes a moving motor (321), a moving screw (322), and a moving plate (323). The moving motor (321) is fixed on the lifting block (313). The motor shaft of the moving motor (321) is connected to the moving screw (322). The moving screw (322) extends in the radial direction of the support plate (110). The bottom of the moving plate (323) has a moving block sleeved on the moving screw (322). The moving block is screwed to the moving screw (322). The moving plate (323) is the movable end of the moving part (320). The drilling motor (330) is provided on the moving plate (323).

7. A precast concrete inspection shaft quick penetrator device as claimed in any one of claims 1 to 3 wherein, The bottom of the base (100) is provided with a drive motor (160) that is connected to the support plate (110). The motor shaft of the drive motor (160) is provided with a drive gear (161). The bottom of the support plate (110) is provided with a connecting boss (111). The connecting boss (111) extends through the base (100) to the bottom of the base (100). The drive gear (161) is embedded in the engagement hole of the connecting boss (111). The drive gear (161) meshes with the inner peripheral wall of the engagement hole to drive the support plate (110) to rotate relative to the base (100) in the circumferential direction of the base (100).

8. The rapid drilling device for precast concrete inspection wells as described in any one of claims 1-3, characterized in that, The base (100) has several legs (170) at its bottom, and the distance between the bottom of the legs (170) and the bottom of the base (100) is adjustable.

9. The precast concrete inspection shaft quick penetrator of claim 8, wherein, Each of the legs (170) has a support plate (172) at its bottom.

10. The precast concrete inspection shaft quick penetration device of claim 9, wherein, The base (100) has adjustment screw holes at all four corners, and each of the legs has an adjustment screw (171) at the top, which is screwed into the adjustment screw hole.

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