Drilling pile aperture measuring device

Abstract

The invention relates to the technical field of underground measurement, in particular to a bored pile hole diameter measuring device, and relates to a method for lowering the measuring device into a drill hole through an electric winch, the measuring device comprises a vertical alignment frame, the distance A of the vertical alignment frame is adjusted according to the diameter of the drill hole, and the calculation formula is that the distance A = the diameter of the drill hole / 2. And the distance A refers to the distance from the midpoint of the extending part of the fitting part to the circle center of the bearing frame after the telescopic electric cylinder extends. Under the driving of the radial driving piece, the vertical alignment frame is tightly attached to the inner wall of the drill hole, and digital data of the diameter of the drill hole are obtained through the displacement degree generated by extrusion of the attaching part. The metal sheet is embedded in the continuous fitting part, and when the fitting part extrudes the metal sheet due to displacement, the deformation of the metal sheet is matched with the shape of the inner wall of the drill hole, so that the hole shape data of the drill hole is obtained; the drill hole diameter measuring device is simple in structure, adopts a mechanical measurement mode, and ensures durability and stability. The measuring convenience is improved, and multiple groups of data can be measured at a time.

Description

Technical Field

[0001] The invention relates to the technical field of underground measurement, and in particular to a bored pile hole diameter measuring device. Background Art

[0002] CN203239326U relates to a novel electric measuring device for borehole inner diameter. The utility model includes a sealing cylinder, a measuring arm and a control panel. The upper end of the sealing cylinder is provided with a sleeve cylinder and a fixed frame, a rod hole is opened on the side wall, a sleeve, a driving motor and a counterweight are provided inside, the top of the sleeve extends out of the sleeve cylinder and is connected to the fixed frame through a steel ring, the bottom of the sleeve is provided with a main controller, a displacement chip is provided on the main controller, a micro-control chip and a rotary joint are provided on the driving motor, a rotary rod is sleeved on the rotary joint, the rotary rod is connected to the measuring arm through a collar, the top of the measuring arm is connected to the shoulder of the sealing cylinder through a rotating shaft, a macro distance meter is provided at the bottom, and the main controller is connected to the control panel through a data line. The macro distance meter and the driving motor are used in a coordinated stepping mode, the measuring arm is kept at a fixed distance from the well wall, and a three-dimensional model of the borehole cavity is drawn in real time, which is convenient for repeated measurement.

[0003] CN213838606U discloses a borehole aperture measuring device, which is related to underground space development and energy utilization and storage. It includes a front arc cover, an outer shell sleeve, a front top plate, a rear cover plate, a center tube, and a high-strength fiber rod; there are front pressure sensors on all sides of the back of the front top plate; the high-strength fiber rod is connected to the front spring pressure plate; the front spring pressure plate is connected to the front pressure sensor; grooves are opened at the corresponding positions of the outer shell sleeve and the high-strength fiber rod, and a high-elastic outer film is provided on the grooves; there are motors on all sides of the rear cover plate; and the high-strength fiber rod is connected to the motor. The utility model has a simple structure, and for the testing of different apertures and rock properties, fiber rods and springs with matching lengths and stiffness can be replaced.

[0004] CN112228038A discloses a large-diameter bored pile intelligent drilling and online detection system, including: a ground system, a communication system, a drilling rig and a pile hole underground measurement system. In the pile hole drilling construction, the present invention monitors a variety of engineering data and geological data online and in real time through the pile hole underground measurement system while the drilling rig and the drilling tool combination completes the pile hole drilling operation, and transmits the data to the ground system through the communication system, so that when the drilling rig and the drilling tool combination performs the pile hole drilling construction, the real-time information of the pile hole shape or quality is obtained synchronously, forming a large-diameter bored pile intelligent drilling and online detection technology and application; the authenticity and timeliness of the online detection data provide a reliable basis for the intelligent pile hole drilling construction, and become the basis of the intelligent pile hole drilling operation.

[0005] At present, common borehole diameter detection tools include cage-type calipers, movable caliper detectors, and umbrella-shaped detectors. However, these traditional detection tools have many shortcomings. For example, the cage-type caliper has limited accuracy and is easily damaged during use; although the movable caliper detector has good flexibility, its measurement accuracy is often difficult to guarantee, and the measured data needs to be manually counted and plotted on a coordinate graph to obtain specific details of the hole pile; the umbrella-shaped detector is a device that integrates more sensors, which is similar to the above-mentioned patent. Although it can reflect the aperture situation more intuitively, its applicability under complex geological conditions is poor. Therefore, in view of the problems existing in the prior art, the present invention proposes a new type of borehole diameter measurement device, which aims to overcome the above-mentioned technical defects and provide a borehole diameter measurement device with simple structure, convenient operation, high measurement accuracy and strong applicability. Summary of the invention

[0006] The purpose of the invention is to provide a bored pile hole diameter measuring device.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions: A bored pile diameter measuring device comprises a measuring part lowered to the inside of a borehole by an electric winch, the measuring part comprising: The vertical alignment frame adjusts the distance A according to the diameter of the drill hole. The distance A = the diameter of the drill hole / 2. The distance A is the distance from the midpoint of the extended part of the fitting part to the center of the support frame after the telescopic electric cylinder is extended. The vertical alignment frame fits the inner wall of the drill hole under the drive of the radial driving member. The digital data of the drill hole diameter is obtained by the degree of displacement of the continuous fitting parts on the vertical alignment frame by the inner wall of the drill hole. The metal sheet is inserted in the continuous fitting part. The displacement of the fitting part squeezes the metal sheet to cause deformation. The deformation of the metal sheet matches the shape of the inner wall of the drill hole, and the hole shape data of the drill hole is obtained. The support bracket carries a plurality of radial driving parts, namely telescopic electric cylinders. The movable ends of the telescopic electric cylinders are all equipped with vertical alignment frames. The telescopic electric cylinders are used to drive the vertical alignment frames to move horizontally.

[0008] Preferably, fitting parts driven to reset by elastic parts are continuously arranged on the outer side of the vertical alignment frame, and annular bevels are provided on the outer ends of the fitting parts. The extended lines of the axes of the fitting parts are perpendicular to the axes of the drill holes. A side window is provided on one side of the vertical alignment frame, and the top of the side window is connected to the top of the vertical alignment frame. An alignment recess is provided on each of the fitting parts, and the alignment recess and the side window are in the same direction.

[0009] Preferably, the plurality of vertical alignment frames are evenly arranged with the center of the support frame as the center.

[0010] Preferably, the support frame is provided with telescopic electric cylinders whose number corresponds to the vertical alignment frame, and the telescopic electric cylinders are assembled on a sliding block, and the sliding block moves radially along a sliding groove on the support frame.

[0011] Preferably, limit holes are equidistantly provided on both sides of the slide slot, and limit bolts are installed on both sides of the sliding block. The limit bolts cooperate with the limit holes to achieve the limit after the adjustment of the position of the telescopic electric cylinder.

[0012] Preferably, a magnetic block is attached to the inner side of each alignment notch for adsorbing the metal sheet.

[0013] Preferably, the metal sheet is made of iron.

[0014] Preferably, the free end of the rope is bound to the middle of the bracket, the bracket is fixed to the supporting frame by welding, and the rope is wound on the electric winch.

[0015] Preferably, a scale is provided on the surface of the portion of the bonding portion extending out of the vertical alignment frame, wherein the scale takes the midpoint of the portion of the bonding portion extending out of the vertical alignment frame as the zero point, and the values ​​on both sides increase or decrease correspondingly.

[0016] The present invention has at least the following beneficial effects: the structure is simple, and the measurement method is all realized by mechanical structure, which ensures the durability and measurement stability in complex environments. At the same time, compared with the existing equipment, it also improves the convenience of measurement, and can realize one-time measurement of multiple sets of data. At the same time, it also omits the steps of measuring data and graphical conversion, which greatly improves the efficiency of construction. In addition, the device is designed with adjustable measuring components, which can adapt to the measurement needs of boreholes of different diameters, and enhances the versatility and flexibility of measurement. In general, the borehole diameter measurement device has achieved significant optimization in structure, function and efficiency, providing strong technical support for drilling construction.

[0017] After the measurement, direct digital reading can be performed to facilitate the adjustment of the drilling hole. At the same time, with the cooperation of multiple sets of equipment, the hole shape of the drilling hole can also be intuitively understood through the deformed metal sheet 203. Provide more accurate data support for construction. At the same time, the device also has good adaptability and compatibility, can meet the measurement needs of drilling holes of different specifications and sizes, and provide users with a more convenient and efficient measurement solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0019] Figure 1 It is a schematic diagram of the present invention; Figure 2 It is a schematic diagram of the measuring part of the present invention; Figure 3 is a cross-sectional view of the vertical alignment frame of the present invention; Figure 4 A top view of the support frame of the present invention; Figure 5 A schematic diagram of the measurement of the present invention; Figure 6 It is a schematic diagram of the scale of the laminating part of the present invention; Figure 7 This is a schematic diagram of Embodiment 2 of the present invention.

[0020] In the figure: 001, drilling hole; 002, electric winch; 003, rope; 100, measuring part; 201, vertical alignment frame; 202, fitting part; 203, metal sheet; 204, elastic member; 205, side window; 206, annular bevel; 207, alignment notch; 208, scale; 209, magnetic block; 301, supporting bracket; 302, sliding block; 303, telescopic electric cylinder; 304, limiting bolt; 305, bracket; 306, slide groove; 307, limiting hole. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0022] Embodiment 1

[0023] Reference Figure 1-6 , a bored pile diameter measuring device, the measuring device 100 is lowered into the borehole 001 by an electric winch 002, the rope 003 at the free end is bound to the middle of the bracket 305, and then the bracket 305 is fixed to the support frame 301 by welding. In addition, the rope 003 is wound on the electric winch 002, and the measuring device 100 is composed of a vertical alignment frame 201, a fitting part 202 and a metal sheet 203; The vertical alignment frame 201 adjusts the distance A according to the diameter of the borehole 001, wherein the distance A is equal to half of the diameter of the borehole 001. The distance A is defined as the distance from the midpoint of the extended portion of the fitting portion 202 to the center of the support bracket 301 after the telescopic electric cylinder 303 is extended. Driven by the radial drive member, the vertical alignment frame 201 is closely attached to the inner wall of the borehole 001. The measuring device 100 can obtain digital data of the diameter of the borehole 001 through the displacement degree of the fitting portion 202 due to the squeezing of the inner wall of the borehole 001; The metal sheet 203 is inserted into the continuous fitting portion 202. When the fitting portion 202 is displaced and squeezes the metal sheet 203, the metal sheet 203 is deformed, and the deformation is consistent with the shape of the inner wall of the borehole 001, thereby obtaining the hole shape data of the borehole 001. The support bracket 301 carries a plurality of radial driving members, namely, telescopic electric cylinders 303, and a vertical alignment frame 201 is mounted on the movable end of each telescopic electric cylinder 303. The telescopic electric cylinder 303 is used to drive the vertical alignment frame 201 to move horizontally.

[0024] On the outside of the vertical alignment frame 201, there are continuously provided fitting parts 202 driven to reset by elastic members 204. The outer ends of these fitting parts 202 are designed with annular bevels 206, and the extended lines of their axes are perpendicular to the axis of the drilling hole 001. A side window 205 is provided on one side of the vertical alignment frame 201, and its top is connected to the top of the vertical alignment frame 201. Each fitting part 202 is provided with an alignment notch 207, and these alignment notches 207 are in the same direction as the side window 205, which is convenient for the installation and removal of the metal sheet 203. The inner side of each alignment notch 207 is equipped with a magnetic block 209 to absorb the metal sheet 203. The two vertical alignment frames 201 are evenly distributed on both sides of the support bracket 301, that is, they are stacked.

[0025] The supporting frame 301 is provided with telescopic electric cylinders 303 of a number corresponding to the vertical alignment frame 201 . The telescopic electric cylinders 303 are assembled on the sliding block 302 , so that the sliding block 302 can move radially along the sliding groove 306 on the supporting frame 301 .

[0026] Limiting holes 307 are equidistantly provided on both sides of the slide slot 306 , and limiting bolts 304 are installed on both sides of the sliding block 302 . The limiting bolts 304 cooperate with the limiting holes 307 to achieve the limit after adjustment of the position of the telescopic electric cylinder 303 .

[0027] The metal sheet 203 is made of iron, which is convenient for adsorption and recycling.

[0028] The surface of the portion of the bonding portion 202 extending from the vertical alignment frame 201 is provided with a scale 208, wherein the midpoint of the portion of the bonding portion 202 extending from the vertical alignment frame 201 is the zero point of the scale 208, and the values ​​on both sides increase or decrease correspondingly.

[0029] The electric winch 002 is the power core of the measuring device, responsible for winding and releasing the measuring rope. The electric winch 002 is equipped with a precise control system, which can accurately adjust the length of the measuring rope to meet the measurement requirements of different bored pile diameters. Its compact structure and reasonable design ensure that it can maintain good stability and durability during long-term use.

[0030] This solution has the following working process: accurately calculating the depth of the drilling hole 001 and the height of the vertical alignment frame 201, and then determining the number of measurements, that is, the depth of the drilling hole 001 divided by the multiple of the height of the vertical alignment frame 201.

[0031] Before measuring, first adjust the position of the sliding block 302 and the telescopic electric cylinder 303 according to the diameter of the drill hole 001 divided by 2 to ensure Figure 2 The distance A in the figure is equal to half the diameter of the borehole 001. The distance A refers to the distance from the midpoint of the extended part of the fitting part 202 to the center of the support bracket 301 after the telescopic electric cylinder 303 is extended. After this setting, the measurement can be started. The midpoint of the extended part of the fitting part 202 is used to accurately obtain the concave and convex data.

[0032] The measuring part 100 is lowered to a specified height by the electric winch 002, ensuring that the rope 003 is located at the center of the borehole 001, and the support bracket 301 should also be located at the center of the borehole 001. The telescopic electric cylinder 303 is started to extend, and the fitting part 202 is then fitted on the inner wall of the borehole 001. At the concave and convex positions, the metal sheet 203 will be deformed due to extrusion. After the telescopic electric cylinder 303 is reset, the measuring part 100 is lifted out of the borehole 001, and the diameter data of the borehole 001 can be quickly determined by the moving fitting part 202 and the corresponding scale 208. At the same time, the metal sheet 203 can be removed through the side window 205, so that the hole shape of the borehole 001 can be intuitively understood, thereby improving the convenience of measurement. If the height of the vertical alignment frame 201 is equal to the depth of the borehole 001, only one measurement is required. If the depth of the drill hole 001 is multiple times the height of the vertical alignment frame 201 , multiple measurements are required, and the data from each measurement is combined to obtain the final result.

[0033] During the measurement process, since the elasticity of the elastic member 204 is relatively weak, after the metal sheet 203 is deformed, the elastic member 204 cannot completely restore the metal sheet 203. This allows ground staff to easily read the data after lifting the borehole 001. After the metal sheet 203 is removed, the fitting portion 202 will automatically reset due to the absence of the metal sheet 203, making it easy to replace a new metal sheet 203 for the next measurement.

[0034] According to the above working process, we can know that: The borehole diameter measuring device proposed in this study has a simple structural design, and the measurement method completely relies on the mechanical structure, ensuring durability and measurement stability in complex environments. Compared with existing equipment, the device significantly improves the convenience of measurement operations, can complete the measurement of multiple sets of data at one time, and eliminates the steps of converting traditional measurement data into graphics, greatly improving construction efficiency. In addition, the device is equipped with adjustable measuring components that can meet the measurement requirements of boreholes of different diameters, thereby enhancing the versatility and flexibility of the measurement. Overall, the borehole diameter measuring device has achieved significant optimization in structure, function and efficiency, providing strong technical support for drilling construction.

[0035] Embodiment 2

[0036] like Figure 7 As shown, the number of vertical positioning frames 201 is 18. The increase in the number adopts the circular arrangement of multiple groups of vertical positioning frames 201. Through the measurement steps, more detailed and complete data can be obtained, providing more accurate data support for construction.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A bored pile diameter measuring device, comprising a measuring part (100) lowered to the inside of a borehole (001) by an electric winch (002), characterized in that: The measuring unit (100) comprises: The vertical alignment frame (201) adjusts the distance A according to the diameter of the drill hole (001), wherein the distance A=the diameter of the drill hole (001) / 2, and the distance A is the distance from the midpoint of the extended portion of the fitting portion (202) to the center of the support frame (301) after the telescopic electric cylinder (303) is extended. The vertical alignment frame (201) fits the inner wall of the drill hole (001) under the drive of the radial driving member, and the digital data of the diameter of the drill hole (001) is obtained by the degree of displacement of the continuous fitting portions (202) on the vertical alignment frame (201) by the inner wall of the drill hole (001); The metal sheet (203) is inserted into the continuous fitting portion (202), and the displacement of the fitting portion (202) causes the metal sheet (203) to deform, and the deformation of the metal sheet (203) matches the shape of the inner wall of the drill hole (001), thereby obtaining hole shape data of the drill hole (001); The support bracket (301) carries a plurality of radial driving members, namely telescopic electric cylinders (303). The movable ends of the telescopic electric cylinders (303) are all installed with vertical alignment frames (201). The telescopic electric cylinders (303) are used to drive the vertical alignment frames (201) to move horizontally.

2. A bored pile hole diameter measuring device according to claim 1, characterized in that: A fitting portion (202) driven to reset by an elastic member (204) is continuously arranged on the outer side of the vertical alignment frame (201), and a circular cutting bevel (206) is provided on the outer end of each fitting portion (202). The axis extension line of the fitting portion (202) is perpendicular to the axis of the drilling hole (001). A side window (205) is provided on one side of the vertical alignment frame (201), and the top of the side window (205) is connected to the top of the vertical alignment frame (201). Each fitting portion (202) is provided with an alignment notch (207), and the alignment notch (207) and the side window (205) are in the same direction.

3. A bored pile hole diameter measuring device according to claim 2, characterized in that: The plurality of vertical alignment frames (201) are evenly arranged with the center of the support frame (301) as the center.

4. A bored pile hole diameter measuring device according to claim 3, characterized in that: The support frame (301) is provided with telescopic electric cylinders (303) of a number corresponding to the vertical alignment frame (201); the telescopic electric cylinders (303) are mounted on a sliding block (302); and the sliding block (302) moves radially along a sliding groove (306) on the support frame (301).

5. A bored pile hole diameter measuring device according to claim 4, characterized in that: Limiting holes (307) are equidistantly provided on both sides of the slide groove (306), and limiting bolts (304) are installed on both sides of the sliding block (302). The limiting bolts (304) cooperate with the limiting holes (307) to achieve the limit after the adjustment of the position of the telescopic electric cylinder (303).

6. A bored pile hole diameter measuring device according to claim 5, characterized in that: A magnetic block (209) is attached to the inner side of each alignment notch (207) and is used to absorb the metal sheet (203).

7. A bored pile hole diameter measuring device according to claim 6, characterized in that: The material of the metal sheet (203) is iron.

8. A bored pile hole diameter measuring device according to claim 7, characterized in that: The free end of the rope (003) is bound to the middle of the bracket (305), the bracket (305) is fixed to the support frame (301) by welding, and the rope (003) is wound on the electric winch (002).

9. A bored pile hole diameter measuring device according to claim 8, characterized in that: A scale (208) is provided on the surface of the portion of the laminating portion (202) extending out of the vertical alignment frame (201), wherein the scale (208) takes the midpoint of the portion of the laminating portion (202) extending out of the vertical alignment frame (201) as the zero point, and the values ​​on both sides increase or decrease accordingly.

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