Tool for measuring concrete surface of cast-in-place pile

Abstract

The utility model discloses a cast-in-place pile concrete surface measuring tool which comprises a measuring rod device and a measuring device, the measuring device comprises a measuring cylinder piece, a jacking plate, a jacking line and a measuring cover, the measuring cylinder piece is provided with an open end, a line hole opposite to the open end and a material collecting cavity, and the open end is communicated with the line hole through the material collecting cavity. The open end and the line hole are arranged in the vertical direction, the measuring cover is hinged to the open end of the measuring cylinder piece, one end of the jacking line is connected with the measuring cover, the other end of the jacking line sequentially penetrates through the open end, the material collecting cavity and the line hole to be connected with the jacking plate, and the measuring rod device is connected with the outer wall of the open end of the measuring cylinder piece; when the jacking plate does not abut against the concrete surface, the measuring cover covers the open end, and the jacking plate is vertically arranged below the wire hole; when the jacking plate abuts against the concrete face and continuously descends, the jacking plate drives the measuring cover to rotate in the vertical direction relative to the measuring cylinder piece through the jacking line. According to the utility model, the problem of easy misjudgment caused by strong subjectivity of the traditional method is solved.

Description

A tool for measuring the concrete surface of cast-in-place piles Technical Field

[0001] This utility model relates to the field of building technology, and in particular to a tool for measuring the concrete surface of cast-in-place piles. Background Technology

[0002] Traditional methods for determining the position of the concrete pouring surface in cast-in-place piles primarily rely on the original rope and hammer method. This method is highly dependent on the operator's experience and intuition, thus possessing a strong degree of subjectivity and significant error. Especially in complex situations such as unclear mud-concrete interface, significant depth of the concrete surface below ground level, high mud density, or unstable upper borehole walls, the concrete top surface position measured using the rope and hammer method often deviates considerably from the actual situation. This can easily lead to a decline in construction quality and affect the safety and stability of the engineering structure. Summary of the Invention

[0003] The technical problem this invention aims to solve is that the existing methods for determining the position of the concrete pouring surface of cast-in-place piles deviate significantly from the actual situation, which can easily lead to a decline in construction quality and affect the safety and stability of the engineering structure.

[0004] To solve the above-mentioned technical problems, this utility model provides a measuring tool for the concrete surface of cast-in-place piles, including a measuring rod device and a measuring device. The measuring device includes a measuring cylinder, a lifting plate, a support line, and a measuring cover. The measuring cylinder has an open end, a wire hole opposite to the open end, and a material collection cavity. The open end and the wire hole are connected through the material collection cavity. The open end and the wire hole are arranged in a vertical direction. The measuring cover is hinged to the open end of the measuring cylinder. One end of the support line is connected to the measuring cover. The other end of the support line passes through the open end, the material collection cavity, and the wire hole in sequence and is connected to the lifting plate. The measuring rod device is connected to the outer wall of the open end of the measuring cylinder.

[0005] When the lifting plate is not in contact with the concrete surface, the measuring cover is placed on the open end and the lifting plate is vertically positioned below the line hole; when the lifting plate contacts the concrete surface and continues to descend, the lifting plate drives the measuring cover to rotate vertically relative to the measuring cylinder through the top support line.

[0006] In some embodiments, the measuring rod device has at least one measuring rod with graduations.

[0007] In some embodiments, the number of measuring rods is N, and N is an integer;

[0008] When N=1, the measuring rod includes a compression assembly and a rod body, the compression assembly is connected to the rod body, and the rod body is connected to the outer wall of the open end of the measuring cylinder;

[0009] When N>1, the measuring rod device further includes at least one locking member. The topmost measuring rod includes the compression assembly and the rod body, and the remaining measuring rods include the rod body. Adjacent rod bodies are connected by the locking member, and the bottommost rod body is connected to the outer wall of the open end of the measuring cylinder.

[0010] In some embodiments, the compression assembly includes a top cover, an elastic element, and a traction structure. The top cover is connected to the rod body via the elastic element. One end of the traction structure is connected to the top cover, and the other end of the traction structure passes through the elastic element and the rod body in sequence and is connected to the measuring cover. When the measuring cover rotates in the vertical direction relative to the measuring cylinder, the traction structure drives the top cover to compress the elastic element.

[0011] In some embodiments, the traction structure includes a traction line and a guide roller. The guide roller is disposed within the rod body and located at one end of the rod body away from the top cover. One end of the traction line is connected to the top cover, and the other end is wrapped around the outer periphery of the guide roller and connected to the measuring cover.

[0012] In some embodiments, the rod is a galvanized steel pipe.

[0013] In some embodiments, the density of the measuring cylinder and the density of the lifting plate are greater than the density of the concrete.

[0014] In some embodiments, the measuring cylinder is conical, and the wire hole is located at the conical end of the measuring cylinder.

[0015] In some embodiments, the taper of the graduated cylinder is 0.7-0.8.

[0016] In some embodiments, the top support line is an iron wire.

[0017] Compared with the prior art, the beneficial effects of this utility model embodiment of a concrete surface measuring tool for cast-in-place piles are as follows:

[0018] In this embodiment of the invention, under normal conditions (i.e., when the lifting plate is not in contact with the concrete surface), the lifting plate hangs naturally, with the measuring cover closed, blocking the open end and preventing impurities such as mud from entering the measuring cylinder. After the lifting plate contacts the concrete, the descending concrete exerts an upward thrust on the lifting plate. At this time, the support line is forcefully pushed upwards against the measuring cover, causing the measuring cover to rotate vertically around the hinge point, thereby opening the open end. Concrete enters the aggregate chamber through the open end, eventually filling the measuring cylinder. The measuring cylinder is then lifted out of the pile hole using a measuring rod device. By combining the insertion length of the measuring rod device, the current position of the concrete surface can be accurately determined. This embodiment solves the problem of strong subjectivity in traditional methods, which leads to easy misjudgment, improves construction quality, and avoids affecting the safety and stability of the engineering structure. Attached Figure Description

[0019] Figure 1 is a schematic diagram of the first state of the concrete surface measuring tool for cast-in-place piles provided in an embodiment of the present invention;

[0020] Figure 2 is a schematic diagram of the second state of the concrete surface measuring tool for cast-in-place piles provided in an embodiment of the present invention;

[0021] In the diagram, 1. Measuring rod device; 11. Measuring rod; 111. Compression assembly; 1111. Top cover; 1112. Elastic element; 1113. Traction structure; 11131. Traction line; 11132. Guide roller; 112. Rod body; 2. Measuring device; 21. Measuring cylinder; 211. Open end; 212. Collection chamber; 22. Lifting plate; 23. Support line; 24. Measuring cover. Detailed Implementation

[0022] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0023] As shown in Figures 1 and 2, this utility model provides a measuring tool for the concrete surface of a cast-in-place pile, including a measuring rod device 1 and a measuring device 2. The measuring rod device 1 is used to lift and lower the measuring device 2 and serves as a length reference for determining the position of the concrete surface. The measuring device 2 includes a measuring cylinder 21, a lifting plate 22, a top support line 23, and a measuring cover 24. The measuring cylinder 21 provides a container space for concrete to flow into, and has an open end 211, a wire hole opposite to the open end 211, and a collection chamber 212. The open end 211 and the wire hole are connected through the collection chamber 212. The open end 211 and the wire hole are arranged vertically. The measuring cover 24 is hinged to the open end 211 of the measuring cylinder 21. One end of the top support line 23 is connected to the measuring cover 24, and the other end of the top support line 23... The material passes through the open end 211, the aggregate chamber 212 and the wire hole and is connected to the lifting plate 22 in sequence. The lifting plate 22 is a sensing component for detecting the concrete surface. It uses the reverse resistance of the concrete to achieve automatic response. When the lifting plate 22 moves upward after contacting the concrete, the top support line 23 supports the opening of the measuring cover 24. The measuring rod device 1 is connected to the outer wall of the open end 211 of the measuring cylinder 21. After the measurement is completed, the measuring cylinder 21 is lifted out of the ground through the measuring rod device 1. The actual depth of the concrete top surface is determined according to the depth of the measuring rod 11.

[0024] When the lifting plate 22 is not in contact with the concrete surface, the measuring cover 24 is placed on the open end 211 and the lifting plate 22 is vertically placed below the line hole; when the lifting plate 22 is in contact with the concrete surface and continues to descend, the lifting plate 22 drives the measuring cover 24 to rotate in the vertical direction relative to the measuring cylinder 21 through the top support line 23.

[0025] Based on the above structure, in this embodiment, under normal conditions (i.e., when the lifting plate 22 is not in contact with the concrete surface), the lifting plate 22 hangs naturally without contact with the concrete surface, and the measuring cover 24 is closed, blocking the open end 211 to prevent impurities such as mud from entering the measuring cylinder. After the lifting plate 22 contacts the concrete, as the concrete descends, it generates an upward thrust on the lifting plate 22. At this time, the top support line 23 is forced upward to support the measuring cover 24, causing the measuring cover 24 to rotate vertically around the hinge point, thereby opening the open end 211. Concrete enters the aggregate chamber 212 through the open end 211, eventually filling the measuring cylinder 21. The measuring rod device 1 is used to pull the measuring cylinder 21 out of the pile hole. By combining the insertion length of the measuring rod device 1, the current position of the concrete surface can be accurately determined. This embodiment solves the problem of strong subjectivity in traditional methods, which leads to easy misjudgment, improves construction quality, and avoids affecting the safety and stability of the engineering structure.

[0026] In some embodiments, the measuring rod device 1 has at least one measuring rod 11, on which a scale is provided.

[0027] In practical applications, one or more measuring rods 11 may be set as needed to accommodate measurement requirements at different depths. By setting graduations on the measuring rods 11, operators can directly determine the depth of the concrete surface relative to the ground or other reference points by reading the graduation value of the portion of the measuring rod 11 that protrudes when inserted into the concrete surface. This allows for a more accurate determination of the concrete pouring height and ensures construction quality. Furthermore, compared to traditional methods that rely on subjective judgment by experienced workers, using a graduated measuring rod 11 can significantly reduce human error and allow non-professionals to quickly learn how to use it, thus improving work efficiency.

[0028] It should be noted that if no scale is set, the measurement can also be performed based on the depth of the measuring rod 11.

[0029] In some embodiments, the number of measuring rods 11 is N, and N is an integer;

[0030] When N=1, the measuring rod 11 includes a compression assembly 111 and a rod body 112. The compression assembly 111 is connected to the rod body 112, and the rod body 112 is connected to the outer wall of the open end 211 of the measuring cylinder 21.

[0031] When N>1, the measuring rod device 1 also includes at least one locking element. The topmost measuring rod 11 includes a compression assembly 111 and a rod body 112. The remaining measuring rods 11 include rod bodies 112. Two adjacent rod bodies 112 are connected by a locking element. The bottommost rod body 112 is connected to the outer wall of the open end 211 of the measuring cylinder 21.

[0032] Understandably, when one measuring rod 11 is needed, it includes a compression assembly 111 and a rod body 112. When multiple measuring rods 11 are needed, the topmost measuring rod 11 also includes a compression assembly 111 and a rod body 112, while the remaining measuring rods 11 only include the rod body 112 and do not include the compression assembly 111. This simplifies the structure, reduces weight, and lowers costs. Adjacent rod bodies 112 are connected by locking devices, ensuring a secure connection while also facilitating assembly and disassembly. The bottommost rod body 112 is directly connected to the outer wall of the open end 211 of the measuring cylinder 21 to lower the measuring tool into the pile hole.

[0033] By adjusting the number of measuring rods 11, the length of the measuring tool can be flexibly configured according to the actual depth of the cast-in-place pile. It is suitable for both shallow and deep pile holes, greatly improving the applicability and flexibility of the equipment. At the same time, the detachable design allows the longer measuring rod 11 assembly to be disassembled into several short sections, making it easy to carry, transport and store, and reducing space occupation.

[0034] In some embodiments, the compression assembly 111 includes a top cover 1111, an elastic element 1112, and a traction structure 1113. The top cover 1111 is connected to the rod 112 via the elastic element 1112, which provides necessary elasticity and cushioning. The top cover 1111 has a certain range of movement relative to the rod 112 and can return to its original position. One end of the traction structure 1113 is connected to the top cover 1111, and the other end of the traction structure 1113 passes through the elastic element 1112 and the rod 112 in sequence before being connected to the measuring cap 24. When the measuring cap 24 rotates vertically relative to the measuring cylinder 21, the traction structure 1113 drives the top cover 1111 to compress the elastic element 1112.

[0035] Based on the above structure, when the lifting plate 22 contacts the concrete surface and begins to rise, it will cause the measuring cover 24 to rotate vertically relative to the measuring cylinder 21 via the top support line 23. At this time, the traction structure 1113, because it is connected to the measuring cover 24, will also be tightened. As the traction structure 1113 tightens, it will pull the top cover 1111 downward and compress the elastic element 1112 located between the top cover 1111 and the rod 112, so that the construction personnel can observe the degree of descent.

[0036] In some embodiments, the traction structure 1113 includes a traction line 11131 and a guide roller 11132. The guide roller 11132 is disposed inside the rod 112 and located at the end of the rod 112 away from the top cover 1111, providing a guiding path for the traction line 11131 and reducing the frictional resistance that the traction line 11131 may encounter during transmission. The traction line 11131 may be made of a high-strength, wear-resistant material, such as steel wire rope or other suitable fiber or metal wire. One end of the traction line is connected to the top cover 1111, and the other end is wrapped around the outer periphery of the guide roller 11132 and connected to the measuring cover 24 to transmit force from the top cover 1111 to the measuring cover 24, so that when the top cover 1111 is subjected to any movement or pressure, the measuring cover 24 can be driven to perform corresponding actions through the traction line 11131.

[0037] Specifically, when the lifting plate 22 contacts the concrete surface and moves upward, it supports the measuring cover 24 through the top support line 23, causing the measuring cover 24 to rotate vertically relative to the measuring cylinder 21, opening the open end 211 to allow concrete to flow into the measuring cylinder 21. At the same time, it also tightens the traction line 11131 to convert the supporting force on the measuring cover 24 into a pulling force on the top cover 1111, making it easier for construction personnel to observe the degree of descent.

[0038] In some embodiments, the pole 112 is made of galvanized steel pipe to prevent corrosion, extend the service life of the equipment, and ensure long-term stable working performance. Preferably, it is a galvanized steel pipe with a diameter of 20mm (KBG), and the pole 112 is 5 meters long.

[0039] In some embodiments, the density of the measuring cylinder 21 and the density of the lifting plate 22 are greater than the density of concrete. This ensures that when these components come into contact with the concrete surface, they can smoothly penetrate the concrete surface and continue to sink until they reach the actual concrete pouring surface. This avoids the possibility that the equipment may float on the concrete surface due to insufficient density, resulting in incorrect readings.

[0040] In some embodiments, the measuring cylinder 21 is conical, with the wire hole located at the conical end. This makes it easier for the measuring cylinder 21 to penetrate the concrete surface. The smaller diameter of the tip (i.e., the conical end) reduces the resistance encountered during insertion, allowing the measuring cylinder 21 to enter the concrete more smoothly. Furthermore, the conical structure helps optimize the fluid dynamics within the internal space, enabling the concrete to fill the measuring cylinder 21 more evenly and quickly, reducing dead zones and resulting in smoother concrete flow.

[0041] In some embodiments, the taper of the measuring cylinder is 0.7-0.8. An appropriate taper ensures that the measuring cylinder 21 has suitable resistance and penetration force when inserted into concrete. If the taper is too small (i.e., too steep), insertion may be difficult because an excessively thin tip increases local stress and is prone to jamming or damage; if the taper is too large, the measuring cylinder 21 may have difficulty effectively penetrating the concrete surface. Preferably, its height is 200 mm and its diameter is 150 mm.

[0042] In some embodiments, the top support line 23 is an iron wire with high tensile strength, which enables it to withstand large tensile forces and provide support without breaking.

[0043] In summary, this utility model provides a concrete surface measuring tool for cast-in-place piles, which enables real-time dynamic monitoring of the concrete surface position during the concrete pouring process. Construction personnel can monitor the concrete rise at any time, facilitating timely adjustments to parameters such as pouring speed and tremie pipe depth, ensuring pouring quality and preventing quality accidents such as pipe blockage and pile breakage. It works stably and reliably under harsh conditions such as high mud density, deep pile holes, and potential collapse risks, as well as in different geological conditions and climatic environments, accurately measuring the concrete surface position. This effectively addresses the problem of inaccurate measurements that traditional measuring tools often encounter in complex environments, providing a reliable basis for subsequent construction and avoiding problems such as pile length not meeting design requirements or over-pouring due to inaccurate measurements.

[0044] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A tool for measuring the concrete surface of a cast-in-place pile, characterized in that, The device includes a measuring rod and a measuring apparatus. The measuring apparatus includes a measuring cylinder, a lifting plate, a support line, and a measuring cover. The measuring cylinder has an open end, a wire hole opposite to the open end, and a collection chamber. The open end and the wire hole are connected through the collection chamber. The open end and the wire hole are arranged vertically. The measuring cover is hinged to the open end of the measuring cylinder. One end of the support line is connected to the measuring cover, and the other end of the support line passes sequentially through the open end, the collection chamber, and the wire hole to connect to the lifting plate. The measuring rod is connected to the outer wall of the open end of the measuring cylinder. When the lifting plate is not in contact with the concrete surface, the measuring cover is placed on the open end, and the lifting plate is vertically positioned below the wire hole. When the lifting plate contacts the concrete surface and continues to descend, the lifting plate, through the support line, drives the measuring cover to rotate vertically relative to the measuring cylinder.

2. The concrete surface measuring tool for cast-in-place piles according to claim 1, characterized in that, The measuring rod device has at least one measuring rod, on which a scale is provided.

3. The concrete surface measuring tool for cast-in-place piles according to claim 2, characterized in that, The number of measuring rods is N, and N is an integer; when N=1, the measuring rod includes a compression assembly and a rod body, the compression assembly is connected to the rod body, and the rod body is connected to the outer wall of the open end of the measuring cylinder; when N>1, the measuring rod device further includes at least one locking member, the topmost measuring rod includes the compression assembly and the rod body, the remaining measuring rods include the rod body, adjacent two rod bodies are connected by the locking member, and the bottommost rod body is connected to the outer wall of the open end of the measuring cylinder.

4. The concrete surface measuring tool for cast-in-place piles according to claim 3, characterized in that, The compression assembly includes a top cover, an elastic element, and a traction structure. The top cover is connected to the rod body through the elastic element. One end of the traction structure is connected to the top cover, and the other end of the traction structure passes through the elastic element and the rod body in sequence and is connected to the measuring cover. When the measuring cover rotates in the vertical direction relative to the measuring cylinder, the traction structure drives the top cover to compress the elastic element.

5. The concrete surface measuring tool for cast-in-place piles according to claim 4, characterized in that, The traction structure includes a traction line and a guide roller. The guide roller is disposed in the rod body and located at the end of the rod body away from the top cover. One end of the traction line is connected to the top cover, and the other end is wrapped around the outer circumference of the guide roller and connected to the measuring cover.

6. The measuring tool for the concrete surface of a cast-in-place pile according to any one of claims 3-5, characterized in that, The rod is made of galvanized steel pipe.

7. The concrete surface measuring tool for cast-in-place piles according to claim 1, characterized in that, The density of the measuring cylinder and the density of the lifting plate are greater than the density of concrete.

8. The concrete surface measuring tool for cast-in-place piles according to claim 1, characterized in that, The measuring cylinder is conical, and the wire hole is located at the conical end of the measuring cylinder.

9. The concrete surface measuring tool for cast-in-place piles according to claim 8, characterized in that, The taper of the graduated cylinder is 0.7-0.

8.

10. The concrete surface measuring tool for cast-in-place piles according to claim 1, characterized in that, The support line is made of iron wire.

Images