Prestressed pipe pile body perpendicularity measuring device
By designing a prestressed pipe pile verticality measurement device including a traction assembly, an umbrella aperture meter and a laser ranging unit, the problem that existing equipment cannot quickly and accurately measure the pipe pile verticality, achieving more efficient and accurate measurement results.
Patent Information
- Application Number
- CN202422210966.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-09-09
AI Technical Summary
Existing equipment cannot quickly and accurately measure the verticality of prestressed pipe piles, especially when the length of pipe piles exposed to the ground is short.
A prestressed pipe pile body verticality measurement device is provided, including a traction assembly, an umbrella aperture meter and a distance measuring unit. The traction assembly adjusts the height of the umbrella aperture meter and the expansion state of the measuring rod through the first and second traction ropes, and the distance measuring unit uses a laser rangefinder to measure the deviation between the center of the pipe pile aperture and the droop point and the height of the umbrella aperture meter.
It realizes rapid and accurate measurement of the verticality of prestressed pipe piles, which saves more effort and has higher data accuracy, and is suitable for pipe piles of different apertures.
Smart Images
Figure CN222975958U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of engineering detection, and more specifically, relates to a device for measuring the verticality of the prestressed pipe pile body. Background Art
[0002] During the driving process of prestressed pipe piles, the leader rod of the pile driver is not straight, the construction site is uneven, causing the pile driver to tilt forward and backward, the pile body to bend, the end plate to tilt, or the pile hammer, pile cap, and pile body center lines not to be on the same straight line, resulting in eccentric loading. If the pile body tilt is too large, the foundation pile is eccentrically compressed, the bearing capacity is reduced, which poses a hazard to the safety of the building. The national standard "Code for Acceptance of Construction Quality of Building Foundation Engineering" (GB50202-2018) stipulates that the allowable deviation of the verticality of the foundation pile shall not exceed 1%. Therefore, the detection of the verticality of the prestressed pipe pile body is very important. The method for measuring the verticality of the pile body in the aforementioned standard uses a theodolite for measurement. However, it is found in on-site inspections that the length of the prestressed pipe pile protruding above the ground at the construction site is often very short, making it impossible to quickly and accurately measure the verticality of the pipe pile using a theodolite or total station. Summary of the Utility Model
[0003] Aiming at the defects of the prior art, the purpose of this application is to provide a device for measuring the verticality of the prestressed pipe pile body, aiming to solve the problem that the existing equipment cannot quickly and accurately measure the verticality of the pipe pile.
[0004] To achieve the above purpose, a device for measuring the verticality of the prestressed pipe pile body provided by this application includes: a traction assembly, an umbrella-shaped aperture gauge, and a ranging unit; the traction assembly is connected to one end of the main rod of the umbrella-shaped aperture gauge through a first traction rope, and is used to adjust the height of the umbrella-shaped aperture gauge in the pipe pile axially directly above the pipe pile orifice; the traction assembly is connected to the measuring rod of the umbrella-shaped aperture gauge through a second traction rope, and is used to pull the second traction rope to expand or retract the measuring rod; the ranging unit is placed directly above the vertical point of the center of the connection end of the main rod and the first traction rope on the pipe pile orifice.
[0005] The measuring device of this application measures the verticality of the pipe pile by combining the traction assembly with the umbrella-shaped aperture gauge. On the one hand, the umbrella-shaped aperture gauge can be applied to pipe piles with different apertures and is not limited by the pipe pile aperture. On the other hand, controlling the height of the umbrella-shaped aperture gauge in the pipe pile and the expansion and contraction of its side rods through the traction assembly is more efficient. Using a laser rangefinder can synchronously and quickly measure the offset between the center of the pipe pile orifice and the vertical point, as well as the height of the umbrella-shaped aperture gauge from the pipe pile orifice, and the measurement accuracy is also higher than the data obtained by manual observation.
[0006] Furthermore, the traction assembly further includes a tripod. In the middle of the top end of the tripod, a first traction structure is fixed. One end of the first traction rope is fixedly connected to the top end of the umbrella-shaped aperture gauge, and the other end thereof movably penetrates through the first traction structure. The first traction rope penetrates through the first traction structure and uses the tripod as a base, which can ensure the overall stability of the measuring device when pulling the traction rope, and further ensure that the umbrella-shaped aperture gauge will not be damaged by touching the inner wall of the pipe pile when moving up and down.
[0007] Furthermore, a second traction structure is arranged on the tripod. One end of the second traction rope is fixedly connected to the upper end of the corresponding measuring rod, and the other end thereof movably penetrates through the second traction structure.
[0008] Furthermore, the first traction structure and / or the second traction structure is a ring, a fixed pulley or a pulley block. The pulley block can be a combination of a fixed pulley and a movable pulley. The pulley block is the most labor-saving compared with the ring and the fixed pulley, and the fixed pulley is more labor-saving than the ring.
[0009] Furthermore, the central axis of the ring is parallel to the horizontal plane, ensuring that the ring is evenly stressed and the operation safety is higher when the corresponding traction rope is pulled.
[0010] Furthermore, the traction assembly includes two servo motors. The first traction rope and the second traction rope are respectively connected to the corresponding servo motors. By providing electric power, it saves manpower. Compared with manual pulling, it can also control the pulling distance more precisely.
[0011] Furthermore, the tripod includes a fixed disk and three uniformly arranged legs. The first traction structure is fixed in the middle of the lower end surface of the fixed disk. Each leg is hinged to the fixed disk. The legs can be flipped to adjust the opening and closing angle of the tripod to be fixed at the edge of the pipe pile hole with different apertures, and at the same time, the height of the traction structure can also be adjusted.
[0012] Furthermore, the distance measuring unit is a laser rangefinder, which can accurately measure and calculate the relevant data of the verticality.
[0013] Generally speaking, compared with the prior art, the above technical solution conceived by the present application has the following beneficial effects: Since this device includes an umbrella-shaped rangefinder, it can be unrestricted by the height of the pipe pile exposed above the ground and the diameter of the pipe pile, and has a wider measurement range; at the same time, the traction assembly adjusts the height of the umbrella-shaped rangefinder in the pipe pile and controls the expansion of the measuring rod of the umbrella-shaped rangefinder to be in contact with and fixed to the inner wall of the pipe pile through two traction ropes respectively, which is more labor-saving and simpler to operate; placing the rangefinder directly above the vertical point of the center of the pipe pile hole at the top center of the umbrella-shaped aperture gauge can measure and calculate two data required for the verticality at the same time, that is, the offset between the center of the pipe pile hole and the vertical point and the height of the umbrella-shaped aperture gauge from the pipe pile hole, with higher efficiency and higher data accuracy. Description of the Drawings
[0014] Figure 1 It is a schematic diagram of a device for measuring the verticality of the prestressed pipe pile body provided in Embodiment 1 of the present application;
[0015] Figure 2 It is a schematic diagram of a device for measuring the verticality of the prestressed pipe pile body provided in Embodiment 2 of the present application;
[0016] Figure 3 It is a schematic diagram of the deployed and retracted states of the umbrella-shaped aperture gauge provided in the embodiments of the present application;
[0017] In all the drawings, the same reference numerals are used to represent the same elements or structures, where:
[0018] 1 - Tripod, 11 - First towing rope, 12 - Second towing rope, 13 - Pipe pile, 131 - First towing structure, 132 - Second towing structure, 133 - Fixed disk, 134 - Leg, 2 - Umbrella-shaped aperture gauge, 21 - Measuring rod, 3 - Distance measuring unit, 4 - Main rod, 41 - Snap ring, 42 - Spherical hook, 5 - Counterweight. Detailed Embodiments
[0019] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0020] Embodiment 1
[0021] To achieve the above object, a device for measuring the verticality of the prestressed pipe pile body provided by the present application, as Figure 1 shown, includes: a towing assembly, an umbrella-shaped aperture gauge 2 and a distance measuring unit 3;
[0022] The towing assembly includes a tripod 1. The tripod 1 includes a fixed disk 133 and three uniformly arranged legs 134. The first towing structure 131 is fixed to the middle of the lower end surface of the fixed disk 133. Each leg 134 is hinged to the fixed disk 133, and the opening angle of the tripod can be adjusted arbitrarily.
[0023] The first towing structure 131 is fixed in the middle of the fixed disk 133. In this embodiment, the first towing structure 131 is a fixed pulley fixed at the center of the top of the tripod. In other embodiments, the first towing structure 131 can also be a ring or a pulley block, and when the first towing structure 131 is a ring, its central axis is parallel to the horizontal plane.
[0024] The first towing rope 11 has a movable end and a fixed end. Its fixed end is fixedly connected to the top end of the umbrella-shaped aperture gauge 2, and its movable end passes through a fixed pulley. When towing the first towing rope 11, the cooperation with the fixed pulley can make it more labor-saving.
[0025] As Figure 3 shown, the umbrella-shaped aperture gauge 2 includes measuring rods 21. There are multiple groups of measuring rods 21. Each group of measuring rods consists of two straight rods connected end to end to form a connecting rod whose connection can rotate and move. There are two counterweights 5 arranged on the main rod 4 of the umbrella-shaped aperture gauge 2. One counterweight 5 is fixed to the lower end of the umbrella-shaped aperture gauge 2, and the lower end of the connecting rod is movably connected to this counterweight; the other counterweight 5 is sleeved on the main rod 4 and can slide along the axial direction, and the upper end of the connecting rod is movably connected to the counterweight sleeved on the main rod 4. The towing assembly is connected to the counterweight that can slide and is sleeved on the main rod 4 through the second towing rope 12. When pulling the second towing rope 12, the second towing rope 12 can tow the counterweight to move along its axial direction on the main rod 4, thereby driving the connecting rod to expand and contract, realizing Figure 3 the retracted state shown by the dashed line or the deployed state shown by the solid line in
[0026] In this embodiment, a snap ring 41 is also fixed to the upper part of the main rod 4. The snap ring 41 is located above the movable counterweight. The second towing rope 12 passes through the snap ring 41, which can play a certain limiting role. A spherical hook 42 is arranged at the center of the top of the main rod 4. The fixed end of the first towing rope 12 is fixedly connected to the spherical hook 42.
[0027] The ranging unit 3 is used to measure the offset e between the center of the pile hole and the vertical point of the top center of the umbrella-shaped aperture gauge 2 at the pile hole opening when the measuring rod 21 is deployed to be in full contact with the inner wall of the pipe pile 1 and the height h from the top center of the umbrella-shaped aperture gauge 2 to the pipe pile hole opening 1 . It can be calculated that the verticality of the precast pipe pile is e 1 / h 1 , and the inclination angle of the precast pipe pile can be calculated by trigonometric function as arctan(e 1 / h 1 ).
[0028] The measurement principle is as follows: First, measure the center of the orifice of the pipe pile 13 with a steel straightedge. Specifically, the vertical diameter theorem can be used to obtain the center of the orifice of the pipe pile. Then, fix the tripod on the periphery of the orifice of the pipe pile 13, and make the center of the top of the tripod directly above the orifice of the pipe pile. Pull the movable end of the first towing rope 11 to tow its fixed end to drive the umbrella-shaped aperture gauge 2 located inside the pipe pile 13 up or down to place it at a position close to the bottom inside the pipe pile 13. Then, pull the movable end of the second towing rope 12 to expand the measuring rod until it abuts and fixes against the inner wall of the pipe pile. Then, use a plumb bob to locate the vertical point of the upper vertex of the umbrella-shaped aperture gauge on the plane where the orifice of the pile top of the pipe pile is located. Finally, place the distance measuring unit 3 directly above the vertical point of the center of the top of the umbrella-shaped aperture gauge 2 at the orifice of the pipe pile, and start measuring the offset e between the center O of the pile hole and the vertical point P of the center of the top of the umbrella-shaped aperture gauge 2 at the orifice of the pile hole. 1 and the height h from the center of the top of the umbrella-shaped aperture gauge 2 to the orifice of the pipe pile. 1 .
[0029] The distance measuring unit 3 in this embodiment is a laser rangefinder, which can quickly obtain higher-precision measurement results.
[0030] In a preferred embodiment, a steel straightedge or a vernier caliper can also be used to measure Figure 1 the offset between the center O of the pile hole and the vertical point P of the center of the top of the umbrella-shaped aperture gauge 2 at the orifice of the pile hole, but the accuracy is not as good as that of the laser rangefinder.
[0031] Embodiment 2
[0032] Different from Embodiment 1, as Figure 2 shown, a second towing structure 132 for limiting is further provided on the tripod in this embodiment. One end of the second towing rope 12 is fixedly connected to the top of the corresponding measuring rod 21, and the other end thereof movably passes through the second towing structure 132. When pulling the movable end of the second towing rope 12, the second towing rope 12 can slide in the second towing structure 132, thereby driving the side rod 21 to contract or expand. In this embodiment, the second towing structure 132 is a ring, a fixed pulley or a pulley block, and the pulley block can be a combination of a movable pulley and a fixed pulley, which is more labor-saving.
[0033] Embodiment 3
[0034] Different from Embodiments 1 and 2, the towing assembly further includes two servo motors (not shown in the figure). The movable ends of the first towing rope 11 and the second towing rope 12 are respectively connected to the corresponding servo motors. When it is necessary to tow and adjust the attitude and height of the umbrella-shaped aperture gauge, the servo motors can provide the towing power, which is more time-saving and labor-saving.
[0035] It should be understood that expressions such as "including" and "may include" used in this application indicate the existence of disclosed functions, operations, or components, and do not limit the existence of one or more additional functions, operations, and components. In this application, terms such as "including" and / or "having" can be interpreted as indicating a specific characteristic, number, operation, component, assembly, or a combination thereof, but cannot be interpreted as excluding the existence or possibility of addition of one or more other characteristics, numbers, operations, components, assemblies, or a combination thereof.
[0036] It should be understood that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to this application.
[0037] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, "a plurality of" means two or more, unless otherwise specifically and clearly defined.
[0038] In this application, unless otherwise clearly specified and limited, terms such as "installed", "connected", "joined", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0039] Those skilled in the art can easily understand that the above are only preferred embodiments of this application and are not used to limit this application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of this application shall be included within the protection scope of this application.
Claims
1. A device for measuring the verticality of a prestressed pipe pile, characterized in that: include: A traction assembly, an umbrella-shaped aperture gauge (2) and a distance measuring unit (3); the traction assembly is connected to one end of a main rod (4) of the umbrella-shaped aperture gauge (2) via a first traction rope (11) and is used to adjust the height of the umbrella-shaped aperture gauge (2) in the pipe pile along the axial direction just above the pipe pile hole; the traction assembly is connected to a measuring rod (21) of the umbrella-shaped aperture gauge (2) via a second traction rope (12) and is used to pull the second traction rope (12) to expand or retract the measuring rod (21); the distance measuring unit (3) is placed so that the center of the connection end of the main rod (4) and the first traction rope (11) is just above the vertical point of the pipe pile hole.
2. A prestressed pipe pile verticality measuring device as claimed in claim 1, characterized in that: The traction assembly comprises a tripod (1), a first traction structure (131) being fixed to the middle of the top end of the tripod (1), one end of the first traction rope (11) being fixedly connected to the end of the main rod (4), and the other end of the first traction rope (11) being movably arranged in the first traction structure (131).
3. A prestressed pipe pile verticality measuring device as claimed in claim 2, characterized in that: The tripod (1) is also provided with a second traction structure (132); one end of the second traction rope (12) is fixedly connected to the upper end of the corresponding measuring rod (21), and the other end thereof is movably arranged in the second traction structure (132).
4. A prestressed pipe pile verticality measuring device as claimed in claim 3, characterized in that: The first traction structure (131) and / or the second traction structure (132) is a circular ring, a fixed pulley or a pulley block.
5. A prestressed pipe pile verticality measuring device as claimed in claim 4, characterized in that: The central axis of the ring is parallel to the horizontal plane.
6. A prestressed pipe pile verticality measuring device as claimed in claim 1, characterized in that: The traction assembly comprises two servo motors, and the first traction rope (11) and the second traction rope (12) are respectively connected to corresponding servo motors.
7. A prestressed pipe pile verticality measuring device as claimed in claim 2, characterized in that: The tripod (1) comprises a fixed plate (133) and three evenly arranged supporting legs (134); the first traction structure (131) is fixed to the middle of the lower end surface of the fixed plate (133); and each supporting leg (134) is hinged to the fixed plate (133).
8. A prestressed pipe pile verticality measuring device as claimed in claim 1, characterized in that: The distance measuring unit (3) is a laser distance measuring device.