A pile hole diameter size accurate measuring device

Abstract

This utility model belongs to the technical field of borehole measuring devices, and discloses a precise measuring device for pile hole diameter. It includes a base, a cylindrical spindle rotatably connected to the inner surface of the base, a protective shell fixedly connected to the bottom end of the cylindrical spindle, a bottom cover fixedly connected to the bottom end of the protective shell, a limiting component inside the base, a measuring component inside the protective shell, a top frame fixedly connected to the upper end of the base, a first motor fixedly connected to the top of the top frame, and a top plate fixedly connected to the output end of the first motor through the top frame. The outer surface of the bottom end of the top plate is slidably connected to the inner surface of the cylindrical spindle. The limiting component includes a shaped frame slidably connected to the inner surface of the base, a scale pointer fixedly connected to the upper end of the shaped frame, and a limiting roller rotatably connected to the lower end of the shaped frame. This design solves the problems of insufficient protection for the measuring components, difficulty in coaxiality between the device and the pile hole, and difficulty in performing multiple identical measurements.

Description

Technical Field

[0001] This utility model belongs to the technical field of borehole measuring devices, and in particular relates to a device for accurately measuring the size of pile hole diameter. Background Technology

[0002] With the acceleration of national transportation development and urbanization, projects such as highways, high-speed railways, high-rise buildings, and large commercial complexes are emerging. These buildings have high requirements for the bearing capacity of foundations, subgrades, and piles, making pile foundations a widely used and effective foundation type. The accuracy of the pile hole diameter directly affects the quality of the pile foundation and the safety of the building. Precise measurement of the pile hole diameter can accurately calculate the contact area between the pile and the surrounding soil, which is crucial for determining the frictional bearing capacity of the pile foundation. However, existing measuring devices are prone to damage during use due to the accumulation of clumps and mud on the sidewalls of the hole. They also suffer from poor coaxiality between the device and the pile, affecting measurement accuracy. Furthermore, existing measuring devices are difficult to use for multiple measurements at the same location, impacting overall practicality and functionality. Utility Model Content

[0003] This utility model addresses the problems in the prior art, such as insufficient protection for measuring components, difficulty in coaxializing the device with the pile hole, and difficulty in performing multiple identical measurements. The following technical solution is proposed:

[0004] A device for accurately measuring the diameter of pile holes includes a base, a cylindrical spindle rotatably connected to the inner surface of the base, a protective shell fixedly connected to the bottom end of the cylindrical spindle, a bottom cover fixedly connected to the bottom end of the protective shell, a limit component inside the base, a measuring component inside the protective shell, a top frame fixedly connected to the upper end of the base, a first motor fixedly connected to the top end of the top frame, a top plate fixedly connected to the output end of the first motor through the top frame, and a sliding connection between the outer surface of the bottom end of the top plate and the inner surface of the cylindrical spindle.

[0005] As a preferred embodiment of the above technical solution, the limiting component includes a shaped frame that is slidably connected to the inner surface of the base. A scale pointer is fixedly connected to the upper end of the shaped frame, and a limiting roller is rotatably connected to the lower end of the shaped frame. A first shock absorber is fixedly connected between the opposite surfaces of adjacent shaped frames.

[0006] As a preferred embodiment of the above technical solution, a guide post is fixedly connected to the inner surface of the base, the outer surface of the guide post is slidably connected to the inner surface of the irregular frame, a scale is fixedly connected to the upper end of the base, the upper end of the scale is slidably connected to the lower end of the scale pointer, a first threaded rod is rotatably connected to the inner surface of the base, the outer surface of the first threaded rod is threadedly connected to the inner surface of the irregular frame, and a lateral knob is fixedly connected to the end of the first threaded rod away from the cylindrical main shaft.

[0007] As a preferred embodiment of the above technical solution, the measuring component includes a mounting plate fixedly connected to the top of the inner part of the protective housing. A multi-stage electric push rod is fixedly connected to one end of the mounting plate near the cylindrical main shaft. A main push plate is fixedly connected to the other end of the multi-stage electric push rod. A second shock absorber is fixedly connected to one end of the main push plate near the cylindrical main shaft. A measuring probe is fixedly connected to the other end of the second shock absorber. The outer surface of the measuring probe is slidably connected to the inner surface of the main push plate.

[0008] As a preferred embodiment of the above technical solution, a multi-stage spring rod is fixedly connected to one end of the main push plate near the cylindrical main shaft, and a partition is fixedly connected to the other end of the multi-stage spring rod. A linkage arm is rotatably connected to the inner surface of the partition, and an arc-shaped baffle is rotatably connected to the other end of the linkage arm. The outer surface of the arc-shaped baffle is slidably connected to the inner surface of the protective shell. A laser ranging sensor is fixedly connected to one end of the mounting plate near the cylindrical main shaft, and a first clip and a second clip are fixedly connected to the inner top of the protective shell.

[0009] As a preferred embodiment of the above technical solution, a second motor is fixedly connected to the upper left end of the top frame. The output end of the second motor is fixedly connected to a second threaded rod through the base. An annular frame is threadedly connected to the outer surface of the second threaded rod. The inner surface of the annular frame is rotatably connected to the outer surface of the cylindrical main shaft. A third threaded rod is rotatably connected to the inner right surface of the top frame. An adjustment knob is fixedly connected to the upper end of the third threaded rod. An adjustment frame is threadedly connected to the outer surface of the third threaded rod. The outer surface of the adjustment frame is slidably connected to the inner surface of the top frame. A damping arc plate is slidably connected to the inner surface of the adjustment frame. A handle is fixedly connected to the upper end of the damping arc plate away from the cylindrical main shaft. A control panel is fixedly connected to the left end of the top frame. The control panel is electrically connected to a multi-stage electric push rod, a laser rangefinder sensor, a first motor, and a second motor.

[0010] The beneficial effects of this utility model are as follows:

[0011] Through the linkage between the irregular frame and the first shock absorber, the synchronous movement of each limiting roller can be ensured, improving the coaxiality of the whole device with the pile hole. By the contact between the limiting roller and the inner wall of the pile hole and the scale pointer reading the scale of the ruler, the outermost part of the pile hole can be measured. At the same time, the position of each limiting roller can be kept stable during installation, improving the overall practicality and service life.

[0012] By using the first and second locking components to limit the position of the partition and the linkage between the partition, the linkage arm, and the arc-shaped baffle, when the partition abuts against the first locking component, the partition drives the arc-shaped baffle to close; when the partition abuts against the second locking component, the partition drives the arc-shaped baffle to open, improving the overall airtightness and reliability. Furthermore, through the upper and lower sets of measuring probes and the laser rangefinder, the two sets of measuring probes can measure pile holes at different depths with the same radial angle, improving the overall practicality and functionality. At the same time, through the threaded transmission between the third threaded rod and the adjusting frame, turning the adjusting knob can adjust the height of the adjusting frame, causing the damping arc-shaped plate to abut against the bottom of the ring frame, which can record the measurement position, facilitating secondary repeated measurements and improving the overall practicality and functionality. Attached Figure Description

[0013] Figure 1 The image shown is a three-dimensional diagram of a device for accurately measuring the diameter of pile holes;

[0014] Figure 2 This is a three-dimensional view of a device for accurately measuring the diameter of pile holes from another perspective;

[0015] Figure 3 The diagram shown is an exploded view of a device for accurately measuring the diameter of pile holes.

[0016] Figure 4 The image shown is an exploded view from another perspective of a device for accurately measuring the diameter of pile holes;

[0017] Figure 5 This is a three-dimensional view of the limiting component;

[0018] Figure 6 This is a three-dimensional view of the limiting component from another perspective;

[0019] Figure 7 The diagram shown is a three-dimensional view of the measuring components.

[0020] In the diagram: 1. Base; 2. Cylindrical spindle; 3. Protective housing; 4. Bottom cover; 5. Limiting assembly; 501. Irregular frame; 502. Scale pointer; 503. Limiting roller; 504. First shock absorber; 505. Guide column; 506. Scale; 507. First threaded rod; 508. Side knob; 6. Measuring assembly; 601. Mounting plate; 602. Multi-stage electric push rod; 603. Main push plate; 604. Second shock absorber; 605. Measuring... 606. Probe; 607. Multi-stage spring rod; 608. Partition plate; 609. Linkage arm; 610. Arc-shaped baffle; 611. Laser rangefinder sensor; 612. First clamping component; 613. Second clamping component; 7. Top frame; 8. First motor; 9. Top plate; 10. Second motor; 11. Second threaded rod; 12. Ring frame; 13. Third threaded rod; 14. Adjustment knob; 15. Adjustment frame; 16. Damping arc plate; 17. Handle; 18. Control panel. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0022] Example 1

[0023] This utility model provides a device for accurately measuring the diameter of pile holes, such as... Figures 1 to 7As shown, the system includes a base 1, a cylindrical spindle 2 rotatably connected to the inner surface of the base 1, a protective housing 3 fixedly connected to the bottom end of the cylindrical spindle 2, a bottom cover 4 fixedly connected to the bottom end of the protective housing 3, a limit assembly 5 inside the base 1, a measuring assembly 6 inside the protective housing 3, a top frame 7 fixedly connected to the upper end of the base 1, a first motor 8 fixedly connected to the top end of the top frame 7, and a top plate 9 fixedly connected to the output end of the first motor 8 through the top frame 7. The outer surface of the bottom end of the top plate 9 is flush with the inner surface of the cylindrical spindle 2. The surface sliding connection allows the first motor 8 to slide and rotate via the top plate 9 and the cylindrical main shaft 2, thereby driving the measuring probe 605 to perform measurements, improving overall functionality. The measuring component 6 includes a mounting plate 601 fixedly connected to the top of the protective housing 3. A multi-stage electric push rod 602 is fixedly connected to one end of the mounting plate 601 near the cylindrical main shaft 2, and a main push plate 603 is fixedly connected to the other end of the multi-stage electric push rod 602. The main push plate 603 is fixed at one end near the cylindrical main shaft 2. A second shock absorber 604 is connected, and a measuring probe 605 is fixedly connected to the other end of the second shock absorber 604. The outer surface of the measuring probe 605 is slidably connected to the inner surface of the main push plate 603. A multi-stage spring rod 606 is fixedly connected to one end of the main push plate 603 near the cylindrical main shaft 2. A partition plate 607 is fixedly connected to the other end of the multi-stage spring rod 606. A linkage arm 608 is rotatably connected to the inner surface of the partition plate 607. An arc-shaped baffle 609 is rotatably connected to the other end of the linkage arm 608. The outer surface of the arc-shaped baffle 609... The surface is slidably connected to the inner surface of the protective shell 3. The arc-shaped baffle 609 and the protective shell 3 can form a closed cavity to protect the internal parts, improving the overall reliability and stability. A laser range sensor 610 is fixedly connected to one end of the mounting plate 601 near the cylindrical main shaft 2. The laser range sensor 610 emits laser pulses at the target by a built-in laser diode. After being reflected by the target, the laser is scattered in all directions. Some of the scattered light returns to the sensor receiver and is received by the optical system and imaged onto the avalanche photodiode.An avalanche photodiode is an optical sensor with internal amplification capabilities, enabling it to detect extremely weak light signals. By recording and processing the time elapsed from the emission of a light pulse to its return and reception, the distance to the target can be determined. The protective housing 3 has a first locking member 611 and a second locking member 612 fixedly connected to its internal top. Through the limiting action of the first locking member 611 and the second locking member 612 on the partition 607 and the linkage action of the partition 607, the linkage arm 608, and the arc-shaped baffle 609, when the partition 607 abuts against the first locking member 611, the partition 607 drives the arc-shaped baffle 609 to close; when the partition 607 abuts against the second locking member 612... At 12 o'clock, the partition 607 drives the arc-shaped baffle 609 to open, improving the overall airtightness and reliability. Through the two sets of measuring probes 605 and the laser rangefinder 610, the two sets of measuring probes 605 can measure pile holes at different depths with the same radial angle, improving the overall practicality and functionality. At the same time, through the threaded transmission between the third threaded rod 13 and the adjusting frame 15, the height of the adjusting frame 15 can be adjusted by turning the adjusting knob 14. This causes the damping arc-shaped plate 16 to abut against the bottom of the ring frame 12, which can record the measurement position, facilitating secondary repeated measurements and improving the overall practicality and functionality.

[0024] like Figures 1 to 7As shown, a second motor 10 is fixedly connected to the upper left end of the top frame 7. The output end of the second motor 10 is fixedly connected to a second threaded rod 11 through the base 1. An annular frame 12 is threadedly connected to the outer surface of the second threaded rod 11. The inner surface of the annular frame 12 is rotatably connected to the outer surface of the cylindrical spindle 2. When the second motor 10 is started, the depth of the measuring probe 605 can be precisely controlled through the threaded transmission between the second threaded rod 11 and the annular frame 12 and the limiting position of the annular frame 12 on the cylindrical spindle 2, further improving the overall practicality and functionality. Furthermore, the stability of the cylindrical spindle 2 during rotation is further improved through the inner and outer limiting positions of the top plate 9 and the annular frame 12. To improve overall measurement accuracy, a third threaded rod 13 is rotatably connected to the inner right side of the top frame 7. An adjustment knob 14 is fixedly connected to the upper end of the third threaded rod 13. An adjustment frame 15 is threadedly connected to the outer side of the third threaded rod 13. The outer side of the adjustment frame 15 is slidably connected to the inner side of the top frame 7. A damping arc plate 16 is slidably connected to the inner side of the adjustment frame 15. A handle 17 is fixedly connected to the upper end of the damping arc plate 16 away from the cylindrical main shaft 2 for easy operation. A control panel 18 is fixedly connected to the left end of the top frame 7. The control panel 18 is connected to the multi-stage electric push rod 602, the laser rangefinder sensor 610, and the first motor 8. The second motor 10 is electrically connected for easy adjustment by the user. The limiting component 5 includes a shaped frame 501 that is slidably connected to the inner surface of the base 1. A scale pointer 502 is fixedly connected to the upper end of the shaped frame 501, and a limiting roller 503 is rotatably connected to the lower end of the shaped frame 501. A first shock absorber 504 is fixedly connected between the opposing surfaces of adjacent shaped frames 501. A guide post 505 is fixedly connected to the inner surface of the base 1, and the outer surface of the guide post 505 is slidably connected to the inner surface of the shaped frame 501. A scale 506 is fixedly connected to the upper end of the base 1, and the upper end of the scale 506 is slidably connected to the lower end of the scale pointer 502. The inner surface of the base 1 is rotatably connected to the lower end of the scale pointer 502. A first threaded rod 507 is dynamically connected, and the outer surface of the first threaded rod 507 is threadedly connected to the inner surface of the irregular frame 501. A lateral knob 508 is fixedly connected to one end of the first threaded rod 507 away from the cylindrical main shaft 2. Through the linkage between the irregular frame 501 and the first shock absorber 504, the synchronous movement of each limiting roller 503 can be ensured, improving the coaxiality of the device as a whole with the pile hole. Through the contact between the limiting roller 503 and the inner wall of the pile hole and the scale reading of the scale 506 by the scale pointer 502, the outermost part of the pile hole can be measured. At the same time, the position of each limiting roller 503 can be kept stable during installation, improving the overall practicality and service life.

[0025] Working Principle: In use, align the bottom cover 4 with the pile hole, place the device on the pile hole, and turn the side knob 508. Through the threaded transmission of the first threaded rod 507 and the irregular frame 501, and the linkage between the irregular frame 501 and the first shock absorber 504, the limiting rollers 503 can be driven to abut against the inner wall of the pile hole, fixing the device and improving the coaxiality between the device and the pile hole. Data is measured through the scale pointer 502 and the scale ruler 506 to perform preliminary measurement of the pile hole. Simultaneously, the device is calibrated using data from multiple scale rulers 506. The first motor 8 and the second motor 10 are activated according to the required measurement angle. The depth and orientation of the measuring probe 605 are adjusted, and the multi-stage electric push rod 602 is activated, driving the main push plate 603 to move. This, in turn, drives the partition plate 607 through the multi-stage spring rod 606. Under the linkage of the partition plate 607, the linkage arm 608, and the arc-shaped baffle 609, the device can... The arc-shaped baffle 609 is separated, releasing the internal sealing limit of the protective shell 3. The multi-stage electric push rod 602 is then activated, which drives the measuring probe 605 to abut against the inner wall of the pile hole for measurement. At this time, the laser range sensor 610 measures the distance between the mounting plate 601 and the measuring probe 605, thereby measuring the diameter of the pile hole. Furthermore, through the upper and lower sets of measuring probes 605 and the laser range sensor 610, the two sets of measuring probes 605 can measure pile holes at different depths with the same radial angle, improving the overall practicality and functionality. When it is necessary to repeat the measurement at the same position, the height of the adjusting frame 15 can be adjusted by turning the adjusting knob 14 through the threaded transmission between the third threaded rod 13 and the adjusting frame 15. This causes the damping arc-shaped plate 16 to abut against the bottom of the ring frame 12, which can record the measurement position, facilitating secondary repeated measurements and improving the overall practicality and functionality.

[0026] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A device for accurately measuring the diameter of pile holes, characterized in that, The device includes a base (1), a cylindrical spindle (2) is rotatably connected to the inner surface of the base (1), a protective shell (3) is fixedly connected to the bottom end of the cylindrical spindle (2), a bottom cover (4) is fixedly connected to the bottom end of the protective shell (3), a limit component (5) is provided inside the base (1), a measuring component (6) is provided inside the protective shell (3), a top frame (7) is fixedly connected to the upper end of the base (1), a first motor (8) is fixedly connected to the top end of the top frame (7), and a top plate (9) is fixedly connected to the output end of the first motor (8) through the top frame (7). The outer surface of the bottom end of the top plate (9) is slidably connected to the inner surface of the cylindrical spindle (2).

2. The device for accurately measuring the diameter of a pile hole according to claim 1, characterized in that, The limiting component (5) includes a shaped frame (501) that is slidably connected to the inner surface of the base (1). A scale pointer (502) is fixedly connected to the upper end of the shaped frame (501). A limiting roller (503) is rotatably connected to the lower end of the shaped frame (501). A first shock absorber (504) is fixedly connected between the opposite surfaces of adjacent shaped frames (501).

3. The precise measuring device for pile hole diameter according to claim 2, characterized in that, A guide post (505) is fixedly connected to the inner surface of the base (1). The outer surface of the guide post (505) is slidably connected to the inner surface of the irregular frame (501). A scale (506) is fixedly connected to the upper end of the base (1). The upper end of the scale (506) is slidably connected to the lower end of the scale pointer (502). A first threaded rod (507) is rotatably connected to the inner surface of the base (1). The outer surface of the first threaded rod (507) is threadedly connected to the inner surface of the irregular frame (501). A lateral knob (508) is fixedly connected to one end of the first threaded rod (507) away from the cylindrical main shaft (2).

4. The precise measuring device for pile hole diameter according to claim 2, characterized in that, The measuring assembly (6) includes a mounting plate (601) fixedly connected to the top of the inner part of the protective housing (3). A multi-stage electric push rod (602) is fixedly connected to one end of the mounting plate (601) near the cylindrical main shaft (2). A main push plate (603) is fixedly connected to the other end of the multi-stage electric push rod (602). A second shock absorber (604) is fixedly connected to one end of the main push plate (603) near the cylindrical main shaft (2). A measuring probe (605) is fixedly connected to the other end of the second shock absorber (604). The outer surface of the measuring probe (605) is slidably connected to the inner surface of the main push plate (603).

5. The precise measuring device for pile hole diameter according to claim 4, characterized in that, A multi-stage spring rod (606) is fixedly connected to one end of the main push plate (603) near the cylindrical main shaft (2). A partition plate (607) is fixedly connected to the other end of the multi-stage spring rod (606). A linkage arm (608) is rotatably connected to the inner surface of the partition plate (607). An arc-shaped baffle (609) is rotatably connected to the other end of the linkage arm (608). The outer surface of the arc-shaped baffle (609) is slidably connected to the inner surface of the protective shell (3). A laser rangefinder (610) is fixedly connected to one end of the mounting plate (601) near the cylindrical main shaft (2). A first clip (611) and a second clip (612) are fixedly connected to the top of the inner part of the protective shell (3).

6. The precise measuring device for pile hole diameter according to claim 5, characterized in that, A second motor (10) is fixedly connected to the upper left end of the top frame (7). The output end of the second motor (10) is fixedly connected to a second threaded rod (11) through the base (1). An annular frame (12) is threadedly connected to the outer surface of the second threaded rod (11). The inner surface of the annular frame (12) is rotatably connected to the outer surface of the cylindrical main shaft (2). A third threaded rod (13) is rotatably connected to the inner right surface of the top frame (7). An adjusting knob (14) is fixedly connected to the upper end of the third threaded rod (13). The outer surface of the third threaded rod (13) is... An adjustment bracket (15) is threadedly connected to the side surface. The outer surface of the adjustment bracket (15) is slidably connected to the inner surface of the top frame (7). A damping arc plate (16) is slidably connected to the inner surface of the adjustment bracket (15). A handle (17) is fixedly connected to the upper end of the damping arc plate (16) away from the cylindrical main shaft (2). A control panel (18) is fixedly connected to the left end of the top frame (7). The control panel (18) is electrically connected to the multi-stage electric push rod (602), the laser range sensor (610), the first motor (8), and the second motor (10).

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