A pile hole verticality measuring device for a cast-in-place pile

Abstract

The utility model relates to the technical field of pile hole measurement discloses a pile hole perpendicularity measuring device of bored pile, including ultrasonic wave quality detector of hole forming and slot forming, one group of support plates is arranged to both sides of ultrasonic wave quality detector of hole forming and slot forming, and the middle is formed with the sliding slot structure that interval sets up to each group two support plates, the first carrying beam and second carrying beam are slidably arranged in the sliding slot structure, wherein the first carrying beam and the second carrying beam are on the same plane after sliding out from the sliding slot structure at bottom portion, the utility model, and the pile hole of a variety of aperture can be adapted and used in cooperation, greatly improve the convenience of operation, do not need to find the support tool on site extra, guarantee the work efficiency, and the structure size of two support tools is accurate matching, guarantees the support effect, greatly satisfies the efficient, accurate detection demand in engineering construction.

Description

Technical Field

[0001] This utility model relates to the field of pile hole measurement technology, and in particular to a device for measuring the verticality of drilled cast-in-place pile holes. Background Technology

[0002] In various engineering construction fields such as buildings, bridges, and rail transit, the verticality of pile holes is one of the core technical parameters affecting the construction quality of bored piles. Its accuracy is directly related to the stress stability of the pile foundation and the safety and reliability of the overall project. Therefore, accurate measurement of pile hole verticality is a key link in the construction process of bored piles.

[0003] Currently, ultrasonic borehole and trenching quality testing instruments are widely used in the industry as the core measuring equipment for pile hole verticality. These instruments, with their high accuracy, ease of operation, and real-time data feedback, have become the mainstream choice in the field of pile hole quality testing and are widely used in the quality control of various bored pile projects.

[0004] However, in actual construction, due to different design requirements for different projects, the diameter of pile holes varies considerably. The ultrasonic drilling and trenching quality testing instrument has relatively fixed dimensions and is usually smaller than the diameter of the pile hole to be tested. Therefore, when measuring the verticality of the pile hole, it is necessary to use temporary support structures such as pads and channel steel to erect the instrument on top of the pile hole, and then place the ultrasonic drilling and trenching quality testing instrument on the support structure to ensure stable placement of the instrument and measurement accuracy.

[0005] However, this method has obvious drawbacks: on the one hand, a lot of time needs to be spent finding suitable support tools before each measurement, and it is necessary to ensure that the two support surfaces are on the same plane, which is cumbersome and seriously affects the efficiency of construction measurement; on the other hand, the stability of the temporary support structure is difficult to guarantee. If the support surface is uneven or the support structure is displaced, it is very easy to cause deviation in measurement data, affecting the accuracy of pile hole quality detection, which may in turn pose hidden dangers to the quality of subsequent construction projects.

[0006] Therefore, there is an urgent need for a pile hole verticality measuring device that can be equipped with its own support tool and is compatible with various hole diameters of bored cast-in-place piles. Utility Model Content

[0007] The purpose of this invention is to provide a verticality measuring device for bored piles, which comes with its own support tools and can be used with piles of various diameters, greatly improving the convenience of operation. It eliminates the need to find additional support tools on site, ensuring work efficiency. At the same time, the two support tools are precisely matched in structural dimensions to ensure the support effect, which greatly meets the needs of efficient and accurate testing in engineering construction.

[0008] The present invention adopts the following technical solution: A device for measuring the verticality of bored piles includes an ultrasonic drilling and trenching quality testing instrument body. A set of support plates is provided on both sides of the ultrasonic drilling and trenching quality testing instrument body. Each set of two support plates is spaced apart to form a trough structure in the middle. A first bearing beam and a second bearing beam are slidably arranged in the trough structure. After the first bearing beam and the second bearing beam slide out of the trough structure, their bottoms are on the same plane.

[0009] Preferably, the first load-bearing beam comprises a top plate and side plates disposed on both sides of the top plate, and its bottom is an open structure; the second load-bearing beam comprises an end plate, on which a bottom plate is vertically disposed and slidably located within the open structure at the bottom of the first load-bearing beam.

[0010] Preferably, a limiting slider is provided at the bottom of the base plate, and a limiting groove is provided on the support plate below for the limiting slider to slide; wherein the limiting slider is located on the side away from the end plate; a limiting plate is provided on the side plate of the first bearing beam located outside the groove structure, and the limiting plate extends around the side wall of the support plate below to the bottom of the support plate; the limiting plate is located at the end away from the limiting slider.

[0011] Preferably, the movement trajectory of the limiting plate is located outside the movement trajectory of the limiting slider.

[0012] Preferably, the ultrasonic hole-forming and grooving quality inspector body is provided with a gear rotatably mounted on a support shaft, and both the bottom plate and the top plate are provided with racks that mesh with the gear; the first bearing beam is provided with an avoidance groove on the side plate inside the chute structure, and the support shaft passes through the avoidance groove.

[0013] Preferably, both the end plate and the first load-bearing beam are provided with handles on the side away from the end plate.

[0014] Preferably, the base plate and the side plate are of equal length.

[0015] Preferably, the limiting plate is threaded with locking bolts.

[0016] Compared with existing technologies, the advantages of this utility model are as follows: This utility model sets support plates and sliding groove structures on both sides of the ultrasonic hole-forming and trenching quality testing instrument, and incorporates sliding first and second bearing beams to form a self-contained support structure. During use, the two bearing beams only need to be slid out of the sliding grooves to be directly erected on top of the pile hole, eliminating the need for additional temporary support tools such as pads or channel steel, and also saving the step of adjusting the support surface to be flush. This significantly shortens the measurement preparation time and effectively improves the overall efficiency of construction testing. Since the first and second bearing beams can slide freely along the sliding groove structure, the extension length of the two bearing beams can be flexibly adjusted according to the actual diameter of the pile hole, making the support range adaptable to pile holes of different sizes in different projects. This eliminates the need for separate dedicated support devices for pile holes of different diameters, significantly improving the versatility and applicability of the measuring device and reducing the investment cost of construction equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an embodiment of this application; Figure 2 This is a partial sectional view of the load-bearing beam connection in an embodiment of this application; Figure 3 This is a structural schematic diagram of the second load-bearing beam implemented in this application; Figure 4 for Figure 2 A structural schematic diagram from the rear view of the load-bearing beam. Detailed Implementation

[0018] The present invention will now be described clearly and completely with reference to the accompanying drawings and embodiments: like Figures 1 to 4As shown, the present invention discloses a borehole verticality measuring device for bored piles, comprising an ultrasonic drilling and trenching quality testing instrument body 1. A set of support plates 2 are provided on both sides of the instrument body. Preferably, the support plates 2 are located at the lower part of each side of the instrument body 1. Each set of two support plates 2 are spaced vertically to form a groove structure in the middle. A first bearing beam 3 and a second bearing beam 4 are slidably arranged within the groove structure. Both the first bearing beam 3 and the second bearing beam 4 are welded from steel plates. The first bearing beam 3 and the second bearing beam 4 can slide out of the groove structure in opposite directions, thus ensuring the verticality of the ultrasonic drilling and trenching quality testing instrument. The placement of the ultrasonic drilling and grooving quality testing instrument body 1 on the pile hole provides support. The distance that the first bearing beam 3 and the second bearing beam 4 move out can meet the needs of pile holes of different diameters, expanding the scope of application of this utility model. The bottoms of the first bearing beam 3 and the second bearing beam 4 are on the same plane after sliding out of the groove structure, ensuring the flatness of the support surface and the stability of the support structure. This effectively avoids the measurement deviation problems caused by easy displacement of the existing temporary support structure and uneven support surface. It provides a stable and reliable placement foundation for the ultrasonic drilling and grooving quality testing instrument body 1, thereby ensuring the accuracy of the pile hole verticality measurement data and providing a strong guarantee for the quality of engineering construction.

[0019] Furthermore, the first supporting beam 3 comprises a top plate 3-1 and side plates 3-2 disposed on both sides of the top plate 3-1, with an open bottom structure; the second supporting beam 4 comprises an end plate 4-1, on which a bottom plate 4-2 is vertically disposed and slidably located within the open bottom structure of the first supporting beam 3. The bottom of the bottom plate 4-2 and the two side plates 3-2 of the first supporting beam 3 are in movable contact with the top of the support plate 2 located below. By sliding the bottom plate 4-2 between the two side plates 3-2 at the bottom of the first supporting beam 3, it can be ensured that the bottom surfaces of the first supporting beam 3 and the second supporting beam 4 are at the same height after being moved out of the sliding structure, thus ensuring the stability of the support. Preferably, a handle 5 is provided on the side of the end plate 4-1 and the first supporting beam 3 away from the end plate 4-1, so as to facilitate the removal of the first supporting beam 3 or the second supporting beam 4 from the sliding structure by pulling the handle 5. The end of the first supporting beam 3 with the handle 5 can be sealed, while the other end is open to allow the second supporting beam 4 to slide in and out. Preferably, the lengths of the base plate 4-2 and the side plate 3-2 are equal, and the sum of the lengths of the base plate 4-2 and the end plate 4-1 is equal to the length of the support plate 2, so as to increase the distance stretched out by the first bearing beam 3 and the second bearing beam 4, thereby meeting the measurement needs of pile holes with different diameters.

[0020] Preferably, a limiting slider 6 is provided at the bottom of the base plate 4-2. The limiting slider 6 is located on the side away from the end plate 4-1. A limiting groove is provided on the support plate 2 below for the limiting slider 6 to slide. By sliding the limiting slider 6 in the limiting groove, a sliding connection between the first bearing beam 3 and the support plate 2 can be established. The longitudinal section of the limiting slider 6 is an inverted T-shape. The larger size of the bottom of the limiting slider 6 slides in contact with the bottom wall of the support plate 2, and the enlarged size at the bottom can provide support for the second bearing beam 4. A limiting plate 7 is provided on the side plate 3-2 outside the groove structure of the first bearing beam 3. The limiting plate 7 extends around the side wall of the support plate 2 below the support plate 2. The limiting plate 7 is located at the end away from the limiting slider 6. The setting of the limiting plate 7 can establish a connection between the first bearing beam 3 and the support plate 2, realize the sliding connection between the two, and at the same time ensure the stability of the first bearing beam 3 under force. The movement trajectory of the limiting plate 7 is located outside the movement trajectory of the limiting slider 6. That is, the inner edge of the bottom of the limiting plate 7 is located outside the outer edge of the bottom of the limiting slider 6, and they do not contact each other to ensure that they do not interfere with each other when sliding.

[0021] Furthermore, a gear 9 is rotatably mounted on the main body 1 of the ultrasonic drilling and grooving quality inspector via a support shaft 8. Specifically, the support shaft 8 is fixedly mounted on the main body 1, and the gear 9 is rotatably mounted on the support shaft 8 via bearings. Racks 10 meshing with the gear 9 are provided on the opposite end faces of the bottom plate 4-2 and the top plate 3-1. An clearance groove 12 is provided on the side plate 3-2 inside the chute structure of the first bearing beam 3, ensuring that the first bearing beam 3 will not be unable to move due to the presence of the support shaft 8 during sliding. The support shaft 8 passes through the clearance groove 12, and the gear 9 is located inside the clearance groove 12. In use, pulling either the first bearing beam 3 or the second bearing beam 4 individually allows both to move synchronously into or out of the chute structure, improving operational convenience. In addition, the limiting plate 7 is also threaded with a locking bolt 11. By rotating the locking bolt 11 to abut against the side wall of the support plate 2, the adjusted first bearing beam 3 can be positioned and fixed. Since the second bearing beam 4 moves synchronously with the first bearing beam 3 under the action of the gear 9 and the rack 10, the positioning of the second bearing beam 4 can be completed synchronously under the premise that the first bearing beam 3 is positioned, ensuring the stability of the two during operation.

[0022] In use, this utility model only requires releasing the locking bolt 11 to position the first bearing beam 3 or the second bearing beam 4, moving it out of the sliding groove structure by a specified length, and placing the first bearing beam 3 and the second bearing beam 4 on top of the pile hole casing. Finally, tightening the locking bolt 11 to position the first bearing beam 3 completes the installation of the ultrasonic drilling and grooving quality testing instrument body 1. This device achieves self-supporting functionality through a simple combination of the support plate 2, the sliding groove, and the sliding bearing beam, without altering the original function and structure of the ultrasonic drilling and grooving quality testing instrument. The overall structure is simple, compact, and small in size, without increasing the burden of carrying and transporting the testing instrument. Moreover, the sliding operation of the bearing beam is convenient and can be completed without professional skills, adapting to the operational needs of construction sites and possessing strong practicality.

Claims

1. A device for measuring the verticality of drilled cast-in-place piles, comprising an ultrasonic drilling and trenching quality testing instrument body, characterized in that: The ultrasonic grooving and hole forming quality inspection instrument has a set of support plates on both sides of its main body. Each set of two support plates is spaced apart to form a groove structure in the middle. A first bearing beam and a second bearing beam are slidably arranged in the groove structure. After the first bearing beam and the second bearing beam slide out of the groove structure, their bottoms are on the same plane.

2. The borehole verticality measuring device for bored piles according to claim 1, characterized in that: The first load-bearing beam comprises a top plate and side plates disposed on both sides of the top plate, and its bottom is an open structure; the second load-bearing beam comprises an end plate, on which a bottom plate is vertically disposed and slidably located within the open structure at the bottom of the first load-bearing beam.

3. The borehole verticality measuring device for bored piles according to claim 2, characterized in that: The bottom of the base plate is provided with a limiting slider, and the support plate below it is provided with a limiting groove for the limiting slider to slide; wherein the limiting slider is located on the side away from the end plate; the first bearing beam is provided with a limiting plate on the side plate outside the groove structure, and the limiting plate extends around the side wall of the support plate below it to the bottom of the support plate; the limiting plate is located at the end away from the limiting slider.

4. The borehole verticality measuring device for bored piles according to claim 3, characterized in that: The movement trajectory of the limiting plate is located outside the movement trajectory of the limiting slider.

5. The borehole verticality measuring device for bored cast-in-place piles according to claim 4, characterized in that: The ultrasonic hole-forming and grooving quality inspection instrument has a gear rotatably mounted on its main body via a support shaft, and both the bottom plate and the top plate are provided with racks that mesh with the gear; the first bearing beam has an avoidance groove on its side plate inside the chute structure, and the support shaft passes through the avoidance groove.

6. The borehole verticality measuring device for bored cast-in-place piles according to claim 4, characterized in that: Handles are provided on the side of the end plate and the first load-bearing beam away from the end plate.

7. The borehole verticality measuring device for bored piles according to claim 2, characterized in that: The base plate and the side plate are of equal length.

8. The borehole verticality measuring device for bored piles according to claim 5, characterized in that: The limit plate is threaded with locking bolts.

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