Precast concrete shaft trepanning auxiliary device

Abstract

The utility model relates to the technical field of concrete processing, in particular to a prefabricated concrete shaft trepanning auxiliary device which comprises a supporting frame, a movable plate, a drilling mechanism and an auxiliary mechanism. The drilling mechanism comprises a drilling plate; a drilling cylinder is arranged below the drilling plate; the auxiliary mechanism comprises a laser and an adjusting assembly. The adjusting assembly drives the laser device to rotate in the first direction in a self-adaptive mode according to the diameter of the shaft body, so that the intersection point of a laser beam emitted by the laser device and the axis of the drill barrel falls on the outer side wall of the shaft body, and when the intersection point of the laser beam emitted by the laser device and the axis of the drill barrel coincides with a point marked on the drill barrel in advance, the laser device is driven to rotate in the first direction. And the axis of the hole drilled by the drill cylinder passes through the mark point, so that the hole opening precision on the shaft body is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete processing, and particularly relates to an auxiliary device for opening holes in a precast concrete wellbore. Background Art

[0002] At present, the commonly used sewage inspection wells on the market mainly include brick inspection wells, plastic inspection wells and precast concrete inspection wells. Among them, the precast concrete inspection well has a fast construction speed and strong bearing capacity, but the reserved hole positions often do not match the actual situation, and holes need to be opened according to the actual situation, and the difficulty of opening holes is relatively large. The precast concrete inspection well is mainly composed of three parts: a wellbore, a manhole cover and the transition connection part between the wellbore and the manhole cover, and the hole opening parts are all in the wellbore.

[0003] In the prior art, as disclosed in a Chinese patent with the publication number CN113276288B and the name of an apparatus for opening a hole in a precast concrete wellbore, the disclosed technical solution records that the laser beam emitted by the laser is made to coincide with the marked point on the wellbore, and then the drilling machine is started to complete the drilling of the wellbore. However, since the working surface for drilling the wellbore is arc-shaped, and according to requirements, the wellbores of different specifications with different diameters are used in a matching manner. Therefore, when the diameter of the selected wellbore changes, the distance between the top of the wellbore and the lower end of the drill bit of the drilling machine changes, resulting in a certain deviation between the intersection point of the laser beam emitted by the laser and the wellbore and the intersection point of the axis of the drill bit and the wellbore, causing deviation between the position where the drilling machine drills the wellbore and the preset position, thereby affecting the accuracy of opening holes in the wellbore. Content of the Utility Model

[0004] The utility model provides an auxiliary device for opening holes in a precast concrete wellbore to solve the above problems.

[0005] The utility model adopts the following technical scheme: an auxiliary device for opening holes in a precast concrete wellbore, comprising a support frame, a moving plate, a drilling mechanism and an auxiliary mechanism;

[0006] The support frame is provided with a first direction and a second direction; both the first direction and the second direction are horizontal directions and are perpendicular to each other; the support frame is further provided with a first reference vertical plane and a second reference vertical plane; the first reference vertical plane is perpendicular to the second direction, and the second reference vertical plane is perpendicular to the first direction;

[0007] Two support rollers are arranged at the bottom of the support frame along the second direction; the axes of the support rollers are arranged along the first direction and are rotatably installed on the support frame;

[0008] The moving plate is arranged on the support frame so as to move up and down through a lifting mechanism and is located above the support rollers;

[0009] The drilling mechanism includes a drilling plate; the drilling plate is slidably arranged on the moving plate along the first direction, and a drill cylinder is arranged below the drilling plate; the axis of the drill cylinder is vertically arranged; the axis of the drill cylinder and the axis of the wellbore body are coplanar, and the plane where the axis of the drill cylinder and the axis of the wellbore body are located is parallel to the first reference plane. After the wellbore body is placed on the two support rollers, the axis of the drill cylinder and the axis of the wellbore body intersect and are perpendicular, so that the axis of the hole drilled by the drill cylinder is opened along the radial direction of the wellbore body; the drill cylinder is arranged below the drilling plate so as to be movable up and down and rotatable;

[0010] The auxiliary mechanism includes a laser and an adjustment assembly; the laser is arranged up and down on one side of the drill cylinder; the laser is arranged below the drilling plate so as to be rotatable around the first direction; the laser beam emitted by the laser intersects the axis of the drill cylinder, and the vertical plane where the laser beam and the axis of the drill cylinder are located is parallel to the second reference vertical plane;

[0011] The adjustment assembly is used to drive the laser to rotate around the first direction adaptively according to the diameter of the wellbore body, so that the intersection point of the laser beam emitted by the laser and the axis of the drill cylinder falls on the outer side wall of the wellbore body. Then, when the intersection point of the laser beam emitted by the laser and the axis of the drill cylinder coincides with the pre-marked point on the drill cylinder, the axis of the hole drilled by the drill cylinder passes through the marked point, thus ensuring the accuracy of opening a hole on the wellbore body.

[0012] Furthermore, an installation shaft is arranged below the moving plate; the axis of the installation shaft is arranged along the first direction on one side of the drill cylinder; both ends of the installation shaft are rotatably installed at the lower end of the moving plate around the first direction through connection blocks; a torsion spring is connected between the installation shaft and the connection blocks; a clamping protrusion arranged along the first direction is provided on the side wall of the installation shaft; the upper end of the laser is slidably installed on the installation shaft along the first direction; when the installation shaft rotates, the laser is driven to rotate through the clamping protrusion; the first synchronous rods are distributed on both sides of the laser along the first direction; the first synchronous rods are fixed on the drilling plate, and when the drilling plate slides along the first direction, the laser is driven to slide on the installation shaft along the first direction through the first synchronous rods; the laser beam emitted by the laser intersects the axis of the installation shaft.

[0013] Furthermore, the adjustment assembly includes an adjustment plate; the adjustment plate is slidably installed on the moving plate along the first direction; a middle rod and side rods are arranged at the lower end of the adjustment plate;

[0014] The axis of the middle rod is vertically arranged; the axis of the middle rod, the axis of the drill cylinder and the axis of the wellbore body are coplanar; the upper end of the middle rod is fixed on the adjustment plate, and the lower end abuts against the side wall of the wellbore body; the middle rod is a sleeve-type telescopic rod, and a spring is arranged inside the middle rod;

[0015] The side rod is arranged on one side of the middle rod; the side rod is arranged obliquely up and down; the upper end of the side rod is far from the axis of the middle rod, and the lower end is close to the axis of the middle rod; the axis of the side rod and the axis of the middle rod intersect, and the vertical plane where the axis of the side rod and the axis of the middle rod are located is parallel to the second reference vertical plane; the upper end of the side rod is slidably mounted on the mounting shaft in the first direction, and the lower end and the lower end of the middle rod are hinged through a hinge shaft; the side rod is a sleeve type telescopic rod, and a spring is arranged inside the side rod. The axis of the side rod and the axis of the mounting shaft intersect, and the axis of the side rod is parallel to the laser beam emitted by the laser; the second synchronous rods are distributed on both sides of the side rod in the first direction; the second synchronous rods are fixed on the adjusting plate; then when the lower end of the middle rod abuts against the side wall of the wellbore, the intersection point of the laser beam emitted by the laser on the side wall of the wellbore body passes through the axis of the drill pipe, so that the intersection point of the laser beam emitted by the laser and the axis of the drill pipe falls on the side wall of the drill pipe;

[0016] The lifting mechanism drives the moving plate to move upward, which is convenient for placing the axis of the wellbore body between the two support rollers in the first direction. The two support rollers position the wellbore body so that the axis of the wellbore body intersects the axis of the drill pipe. Then, the lifting mechanism drives the moving plate to move downward so that the lower end of the middle rod presses against the side wall of the wellbore body. The lower end of the middle rod moves upward to contract the middle rod, driving the lower end of the side rod to move upward to contract the side rod, so that the side rod drives the mounting shaft to rotate, and the mounting shaft drives the laser to rotate synchronously, realizing self-adaptively driving the laser to rotate around the first direction according to the diameter of the wellbore body, so that the intersection point of the laser beam emitted by the laser and the axis of the drill pipe falls on the outer side wall of the wellbore body. Then, when the intersection point of the laser beam emitted by the laser and the axis of the drill pipe coincides with the pre-marked point on the drill pipe, the axis of the hole drilled by the drill pipe passes through the marked point, thus ensuring the accuracy of opening a hole on the wellbore body.

[0017] Further, the lifting mechanism includes a lifting lead screw; the lifting lead screw is arranged vertically and is rotatably mounted on the support frame; the lifting lead screw is in threaded cooperation with the moving plate; the end of the lifting lead screw is connected with a lifting motor; the lifting motor is fixed on the support frame.

[0018] Further, a lifting hydraulic cylinder is fixed on the upper end surface of the drilling plate; the piston rod of the lifting hydraulic cylinder is arranged vertically, and the lower end is fixed with a mounting box; a drilling motor is fixed in the mounting box; the output shaft of the drilling motor is fixedly connected with the drill pipe.

[0019] Further, a turning motor is fixed on the support frame; the output shaft of the turning motor and the rotating shaft of the support roller are in meshing transmission through gears. It is used to start the turning motor to drive the support roller to rotate when it is necessary to change the punching position, so as to turn the wellbore body over.

[0020] The beneficial effects are as follows: When opening a hole in the wellbore body of precast concrete, the adjusting assembly adaptively drives the laser to rotate around the first direction according to the diameter of the wellbore body, so that the intersection point of the laser beam emitted by the laser and the axis of the drill barrel falls on the outer side wall of the wellbore body. Then, when the intersection point of the laser beam emitted by the laser and the axis of the drill barrel coincides with the pre-marked point on the drill barrel, the axis of the hole drilled by the drill barrel passes through the marked point, thus ensuring the accuracy of opening a hole in the wellbore body. Brief Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 Structural schematic diagram of an embodiment of an auxiliary device for opening a hole in a precast concrete wellbore according to the present invention;

[0023] Figure 2 Front view of the embodiment of the present invention;

[0024] Figure 3 Side view of the embodiment of the present invention;

[0025] Figure 4 For Figure 3 Cross-sectional view at A-A in

[0026] Figure 5 For Figure 4 Enlarged view at B in

[0027] Figure 6 Schematic diagram of the moving plate, drilling mechanism, and auxiliary mechanism of the embodiment of the present invention;

[0028] Figure 7 Side view of the moving plate, drilling mechanism, and auxiliary mechanism of the embodiment of the present invention.

[0029] In the figure: 100, wellbore body; 200, support frame; 210, lifting screw rod; 220, support roller; 300, moving plate; 310, mounting shaft; 410, drilling plate; 420, drill barrel; 430, lifting hydraulic cylinder; 510, laser; 511, first synchronous rod; 521, adjusting plate; 522, middle rod; 523, side rod; 600, turning-over motor. Detailed Description of the Embodiment

[0030] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where like or similar reference numerals denote like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0031] The terms "first", "second" in the description and claims of the present utility model may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0032] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model.

[0033] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] An embodiment of an auxiliary device for opening holes in a precast concrete wellbore of the present utility model is as Figures 1 to 7 shown: An auxiliary device for opening holes in a precast concrete wellbore includes a support frame 200, a moving plate 300, a drilling mechanism, and an auxiliary mechanism.

[0035] The support frame 200 is provided with a first direction and a second direction. Both the first direction and the second direction are horizontal directions and are perpendicular to each other. The support frame 200 is further provided with a first reference vertical plane and a second reference vertical plane. The first reference vertical plane is perpendicular to the second direction, and the second reference vertical plane is perpendicular to the first direction. Two support rollers 220 are arranged at the bottom of the support frame 200 along the second direction. The axis of the support roller 220 is arranged along the first direction and is rotatably installed on the support frame 200. The moving plate 300 is arranged on the support frame 200 to move up and down through a lifting mechanism and is located above the support rollers 220. The lifting mechanism includes a lifting screw rod 210. The lifting screw rod 210 is vertically arranged and is rotatably installed on the support frame 200. The lifting screw rod 210 is in threaded cooperation with the moving plate 300. The end of the lifting screw rod 210 is connected with a lifting motor. The lifting motor is fixed on the support frame 200.

[0036] The drilling mechanism includes a drilling plate 410. The drilling plate 410 is slidably arranged on the moving plate 300 along the first direction. A drill barrel 420 is arranged below the drilling plate 410. The axis of the drill barrel 420 is vertically arranged. The axis of the drill barrel 420 and the axis of the wellbore body 100 are coplanar, and the plane where the axis of the drill barrel 420 and the axis of the wellbore body 100 are located is parallel to the first reference plane. After the wellbore body 100 is placed on the two support rollers 220, the axis of the drill barrel 420 intersects and is perpendicular to the axis of the wellbore body 100, so that the axis of the hole drilled by the drill barrel 420 is opened along the radial direction of the wellbore body 100. A lifting hydraulic cylinder 430 is fixed on the upper end surface of the drilling plate 410. The piston rod of the lifting hydraulic cylinder 430 is vertically arranged, and the lower end is fixed with an installation box. A drilling motor is fixed in the installation box. The output shaft of the drilling motor is fixedly connected with the drill barrel 420, so that the drill barrel 420 can be arranged below the drilling plate 410 to move up and down and rotate.

[0037] The auxiliary mechanism includes a laser 510 and an adjustment component. The laser 510 is arranged on one side of the drill tube 420 in an upper and lower manner. The laser 510 is arranged below the drilling plate 410 so as to rotate around a first direction. A mounting shaft 310 is arranged below the movable plate 300. The axis of the mounting shaft 310 is arranged on one side of the drill tube 420 in a first direction. Both ends of the mounting shaft 310 are rotatably mounted on the lower end of the movable plate 300 through a connecting block around a first direction. A torsion spring is connected between the mounting shaft 310 and the connecting block. A cam arranged along the first direction is arranged on the side wall of the mounting shaft 310. The upper end of the laser 510 is slidably mounted on the mounting shaft 310 in the first direction. When the mounting shaft 310 rotates, the laser 510 is driven to rotate by the cam. First synchronization rods 511 are distributed on both sides of the laser 510 in the first direction. The first synchronization rod 511 is fixed on the drilling plate 410. When the drilling plate 410 slides in the first direction, the laser 510 is driven to slide on the installation shaft 310 in the first direction through the first synchronization rod 511. The laser beam emitted by the laser 510 intersects with the axis of the installation shaft 310. The laser beam emitted by the laser 510 intersects with the axis of the drill tube 420, and the vertical plane where the laser beam and the axis of the drill tube 420 are located are parallel to the second reference vertical plane.

[0038] The adjustment component is used to adapt to the diameter of the wellbore body 100 and drive the laser 510 to rotate around the first direction, so that the intersection of the laser beam emitted by the optical device and the axis of the drill barrel 420 falls on the outer wall of the wellbore body 100. When the intersection of the laser beam emitted by the optical device and the axis of the drill barrel 420 coincides with the marked point pre-marked on the drill barrel 420, the axis of the hole drilled by the drill barrel 420 passes through the marked point, thereby ensuring the accuracy of the hole opened on the wellbore body 100.

[0039] The adjustment assembly includes an adjustment plate 521. The adjustment plate 521 is slidably mounted on the movable plate 300 along a first direction. A middle rod 522 and a side rod 523 are provided at the lower end of the adjustment plate 521. The axis of the middle rod 522 is vertically arranged. The axis of the middle rod 522, the axis of the drill pipe 420 and the axis of the well body 100 are coplanar. The upper end of the middle rod 522 is fixed on the adjustment plate 521, and the lower end is in contact with the side wall of the well body 100. The middle rod 522 is a telescopic rod of a sleeve type, and a spring is built into the middle rod 522.

[0040] The side rod 523 is arranged on one side of the middle rod 522. The side rod 523 is arranged to be tilted up and down. The upper end of the side rod 523 is away from the axis of the middle rod 522, and the lower end is arranged close to the axis of the middle rod 522. The axis of the side rod 523 intersects with the axis of the middle rod 522, and the vertical plane where the axis of the side rod 523 and the axis of the middle rod 522 are located is parallel to the second reference vertical plane. The upper end of the side rod 523 is slidably mounted on the mounting shaft 310 along the first direction, and the lower end is hinged to the lower end of the middle rod 522 through a hinge shaft. The side rod 523 is a sleeve-type telescopic rod, and a spring is built into the side rod 523. The axis of the side rod 523 intersects with the axis of the mounting shaft 310, and the axis of the side rod 523 is parallel to the laser beam emitted by the laser 510; second synchronization rods are distributed on both sides of the side rod 523 along the first direction; the second synchronization rod is fixed on the adjustment plate 521. When the lower end of the middle rod 522 abuts against the side wall of the wellbore, the intersection of the laser beam emitted by the laser 510 on the side wall of the wellbore body 100 passes through the axis of the drill pipe 420, so that the intersection of the laser beam emitted by the laser 510 and the axis of the drill pipe 420 falls on the side wall of the drill pipe 420. The lifting mechanism drives the moving plate 300 to move upward, so as to place the axis of the wellbore body 100 between the two support rollers 220 along the first direction. The two support rollers 220 position the wellbore body 100 so that the axis of the wellbore body 100 intersects with the axis of the drill pipe 420. Then, the lifting mechanism drives the moving plate 300 to move downward so that the lower end of the middle rod 522 abuts against the side wall of the wellbore body 100. The lower end of the middle rod 522 moves upward to shrink the middle rod 522, driving the lower end of the side rod 523 to move upward to shrink the side rod 523, so that the side rod 523 drives the installation shaft 310 to rotate, and the installation shaft 310 drives the laser 510 to rotate synchronously, so as to adaptively drive the laser 510 to rotate around the first direction according to the diameter of the wellbore body 100, so that the intersection of the laser beam emitted by the optical device and the axis of the drill barrel 420 falls on the outer wall of the wellbore body 100. When the intersection of the laser beam emitted by the optical device and the axis of the drill barrel 420 coincides with the marked point on the drill barrel 420 in advance, the axis of the hole drilled by the drill barrel 420 passes through the marked point, thereby ensuring the accuracy of the hole opened on the wellbore body 100.

[0041] In this embodiment, a flipping motor 600 is fixed on the support frame 200; the output shaft of the flipping motor 600 and the rotating shaft of the support roller 220 are driven by gear meshing. When the drilling position needs to be changed, the flipping motor 600 is started to drive the support roller 220 to rotate, so that the well body 100 rotates and flips.

[0042] Combined with the above embodiments, the working principle and process of the present utility model are as follows: The lifting mechanism drives the moving plate 300 to move upward, facilitating the placement of the axis of the wellbore body 100 along the first direction between the two support rollers 220. The two support rollers 220 position the wellbore body 100 so that the axis of the wellbore body 100 intersects with the axis of the drill barrel 420. Then, the lifting mechanism drives the moving plate 300 to move downward, causing the lower end of the middle rod 522 to press against the side wall of the wellbore body 100. When the lower end of the middle rod 522 moves upward, the middle rod 522 contracts, driving the lower end of the side rod 523 to move upward and causing the side rod 523 to contract. As a result, the side rod 523 drives the mounting shaft 310 to rotate, and the mounting shaft 310 drives the laser 510 to rotate synchronously, realizing the adaptive driving of the laser 510 to rotate around the first direction according to the diameter of the wellbore body 100, so that the intersection point of the laser beam emitted by the laser and the axis of the drill barrel 420 falls on the outer side wall of the wellbore body 100. Then, when the intersection point of the laser beam emitted by the laser and the axis of the drill barrel 420 coincides with the pre-marked point on the drill barrel 420, the axis of the hole drilled by the drill barrel 420 passes through the marked point, thus ensuring the accuracy of opening a hole in the wellbore body 100. When it is necessary to change the drilling position, start the turning-over motor 600 to drive the support rollers 220 to rotate, so that the wellbore body 100 rotates and turns over. During this process, there is no need to control and calculate the downward movement distance of the moving plate 300. Just making the lower end of the middle rod 522 abut against the wellbore body 100 can ensure that the intersection point of the laser beam emitted by the laser 510 and the axis of the drill barrel 420 falls on the wellbore body 100, which is simple and fast, improving the drilling efficiency.

[0043] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A precast concrete shaft opening auxiliary device, characterized in that: It includes a support frame, a movable plate, a drilling mechanism, and an auxiliary mechanism; The support frame is provided with a first direction and a second direction; the first direction and the second direction are both horizontal directions and perpendicular to each other; the support frame is also provided with a first reference vertical plane and a second reference vertical plane; the first reference vertical plane is perpendicular to the second direction, and the second reference vertical plane is perpendicular to the first direction; Two support rollers are arranged at the bottom of the support frame distributed along the second direction; the axes of the support rollers are arranged along the first direction and are rotatably mounted on the support frame; The movable plate is arranged on the support frame and moves up and down through a lifting mechanism, and is located above the support roller; The drilling mechanism comprises a drilling plate; the drilling plate is slidably arranged on the movable plate along a first direction, a drill tube is arranged below the drilling plate; the axis of the drill tube is arranged vertically; the axis of the drill tube is coplanar with the axis of the well body; the drill tube is arranged below the drilling plate so as to be able to move up and down and to rotate; The auxiliary mechanism includes a laser and an adjustment component; the laser is arranged on one side of the drill tube in an up-and-down manner; the laser is arranged below the drilling plate to rotate around a first direction; the laser beam emitted by the laser intersects with the axis of the drill tube, and the vertical plane where the laser beam and the axis of the drill tube are located are parallel to the second reference vertical plane; The adjustment assembly is used to adapt to the diameter of the wellbore body and drive the laser to rotate around a first direction, so that the intersection of the laser beam emitted by the laser device and the axis of the drill pipe falls on the outer side wall of the wellbore body.

2. A precast concrete shaft opening auxiliary device according to claim 1, characterized in that: A mounting shaft is provided below the movable plate; the axis of the mounting shaft is provided on one side of the drill tube along a first direction; both ends of the mounting shaft are rotatably installed at the lower end of the movable plate through a connecting block around the first direction; a torsion spring is connected between the mounting shaft and the connecting block; a clamping protrusion provided along the first direction is provided on the side wall of the mounting shaft; the upper end of the laser is slidably installed on the mounting shaft along the first direction; first synchronization rods are distributed on both sides of the laser along the first direction; the first synchronization rod is fixed on the drilling plate, and when the drilling plate slides along the first direction, the laser is driven to slide on the mounting shaft along the first direction through the first synchronization rod; the laser beam emitted by the laser intersects with the axis of the mounting shaft.

3. A precast concrete shaft opening auxiliary device according to claim 2, characterized in that: The adjustment assembly includes an adjustment plate; the adjustment plate is slidably mounted on the movable plate along a first direction; a middle rod and a side rod are provided at the lower end of the adjustment plate; The axis of the middle rod is arranged vertically; the axis of the middle rod, the axis of the drill pipe and the axis of the well body are coplanar; the upper end of the middle rod is fixed on the adjustment plate, and the lower end is in contact with the side wall of the well body; the middle rod is a sleeve-type telescopic rod, and a spring is built into the middle rod; The side rod is arranged on one side of the middle rod; the side rod is arranged to be inclined up and down; the upper end of the side rod is far away from the axis of the middle rod, and the lower end is arranged close to the axis of the middle rod; the axis of the side rod intersects with the axis of the middle rod, and the vertical plane where the axis of the side rod and the axis of the middle rod are located is parallel to the second reference vertical plane; the upper end of the side rod is slidably installed on the installation shaft along the first direction, and the lower end is hinged to the lower end of the middle rod through a hinge shaft; the side rod is a sleeve-type telescopic rod, and a spring is built into the side rod; the axis of the side rod intersects with the axis of the installation shaft, and the axis of the side rod is parallel to the laser beam emitted by the laser; second synchronization rods are distributed on both sides of the side rod along the first direction; the second synchronization rod is fixed on the adjustment plate.

4. The precast concrete shaft opening auxiliary device according to claim 1, characterized in that: The lifting mechanism comprises a lifting screw rod; the lifting screw rod is vertically arranged and rotatably mounted on the support frame; the lifting screw rod and the moving plate are threadedly matched; the end of the lifting screw rod is connected to a lifting motor; and the lifting motor is fixed on the support frame.

5. The precast concrete shaft opening auxiliary device according to claim 1, characterized in that: A lifting hydraulic cylinder is fixed on the upper surface of the drilling plate; the piston rod of the lifting hydraulic cylinder is vertically arranged, and a mounting box is fixed on the lower end; a drilling motor is fixed in the mounting box; and the output shaft of the drilling motor is fixedly connected to the drill tube.

6. The precast concrete shaft opening auxiliary device according to claim 1, characterized in that: A flipping motor is fixed on the support frame; the output shaft of the flipping motor and the rotating shaft of the support roller are driven by gear meshing.

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