Box staff support for measuring bottom elevation of foundation pit on natural ground

Abstract

The utility model discloses a telemeter rod support for measuring the bottom elevation of a foundation pit on the natural ground, which comprises a telemeter rod body and a horizontal supporting rod, one end of the horizontal supporting rod is fixedly provided with a first fixing piece, the other end of the horizontal supporting rod is provided with a second fixing piece, the first fixing piece is internally provided with a telemeter rod fixing cavity, and the telemeter rod fixing cavity is internally provided with a second fixing piece. A part of the box staff body is contained in the box staff fixing cavity, an electronic range finder fixing cavity is formed in the second fixing piece, a laser range finder is arranged in the electronic range finder fixing cavity, and a level bubble is fixedly arranged on the horizontal supporting rod. The telemeter rod support for measuring the bottom elevation of the foundation pit on the natural ground can rapidly and accurately measure the bottom elevation of the foundation pit, saves labor, improves efficiency and is suitable for various foundation pit elevation measurement scenes.

Description

Technical Field

[0001] This utility model relates to the field of construction surveying technology, and in particular to a measuring rod support for measuring the bottom elevation of a foundation pit on natural ground. Background Technology

[0002] In construction surveying, measuring the elevation of the bottom of the foundation pit is crucial to the quality and safety of the project. Currently, the industry mostly uses the vertical measuring tape method or the hanging tape method, which has significant shortcomings.

[0003] Regarding natural conditions, the vertical measuring tape method suffers from wind-induced swaying when the tape is suspended in the air, reaching 5-10 centimeters when the pit depth exceeds 3 meters. The suspended measuring tape method, due to rope deformation caused by its own weight, accumulates errors of 2-3 centimeters at depths exceeding 10 meters. Strong sunlight and rain further exacerbate data instability. In terms of labor costs, the vertical measuring tape method requires 3 people, while the suspended measuring tape method requires 4-5 people. Traditional methods only complete 8-10 survey points per day, with labor costs accounting for over 60%. Regarding construction efficiency, the long cycle time of each operation, with each survey point averaging 10-15 minutes, makes it difficult to meet the time constraints of large building complexes, often leading to idle time in subsequent processes.

[0004] Therefore, with the development of the industry, traditional methods are no longer applicable, and developing a new type of measuring tool has become an urgent problem to be solved. Summary of the Invention

[0005] The purpose of this invention is to provide a measuring rod support for measuring the bottom elevation of a foundation pit on natural ground, aiming to solve the problems of traditional methods for measuring the bottom elevation of foundation pits being greatly affected by natural conditions, having high labor costs, low measurement efficiency, and poor measurement accuracy.

[0006] To achieve the above objectives, this utility model provides a leveling rod support for measuring the bottom elevation of a foundation pit on natural ground. The support includes a leveling rod body and a horizontal support rod. A first fixing member is fixedly installed at one end of the horizontal support rod, and a second fixing member is installed at the other end. A leveling rod fixing cavity is provided within the first fixing member, which partially houses the leveling rod body. An electronic distance measuring instrument fixing cavity is provided within the second fixing member, and a laser distance measuring instrument is installed within the electronic distance measuring instrument fixing cavity. A level bubble is fixedly installed on the horizontal support rod.

[0007] Preferably, both the first and second fixing members have circular observation holes perpendicular to the horizontal support rod on their side walls.

[0008] Preferably, both the first fixing member and the second fixing member are convex-shaped structures with the same upper and lower openings, and the protruding ends of both the first fixing member and the second fixing member are open.

[0009] Preferably, the open end of the first fastener is fixedly connected by a first fastening bolt, and the open end of the second fastener is fixedly connected by a second fastening bolt.

[0010] Preferably, the length, width, and height of the horizontal support rod are 15mm, 30mm, and 500mm, respectively; the length, width, and height of the first fixing member are 3mm, 30mm, and 56mm, respectively; the diameter of the observation hole is 20mm; and the height of the tower gauge body is 5m.

[0011] Preferably, the center of the observation hole, the axis of the horizontal support rod, and the bottom of the laser rangefinder are on the same straight line.

[0012] Preferably, the tower gauge body is provided with scale lines, and the axis of the horizontal support rod is aligned with the +0.5m scale line of the tower gauge body.

[0013] Preferably, the size of the gantry fixing cavity is adapted to the size of the gantry body, and the size of the electronic rangefinder fixing cavity is adapted to the size of the laser rangefinder.

[0014] Therefore, the present invention employs the above-mentioned type of measuring rod support for measuring the bottom elevation of a foundation pit on natural ground, and has the following beneficial effects:

[0015] (1) The device of this utility model has a collinear design of “observation hole center - horizontal support rod axis - laser rangefinder bottom”, combined with the horizontal calibration function of the level bubble, which can improve the single measurement error; the combination structure of the convex fixing part and the fastening bolt can greatly offset the wind interference and ensure the measurement stability under complex weather conditions.

[0016] (2) The overall structure of this utility model device is simple and easy to operate, shortens the operation cycle of each measurement point, meets the rapid construction needs of large building complexes, and indirectly reduces the risk of construction delay.

[0017] (3) The mounting plate fixing cavity and the electronic rangefinder fixing cavity of this utility model are designed to be size-adaptive, which can be compatible with most 5-meter mounting plates and laser rangefinders on the market. It has strong compatibility and can play a role in various building construction scenarios.

[0018] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a measuring rod support for measuring the bottom elevation of a foundation pit on natural ground during actual use.

[0020] Figure 2This is a partial structural diagram of an embodiment of the measuring rod support for measuring the bottom elevation of a foundation pit on natural ground during actual use;

[0021] Figure 3 This is a side view of an embodiment of a measuring rod support for measuring the bottom elevation of a foundation pit on natural ground, according to this utility model.

[0022] Figure 4 This is a top view of an embodiment of a measuring rod support for measuring the bottom elevation of a foundation pit on natural ground, according to this utility model.

[0023] Figure 5 This is a schematic diagram of the connection between the first fixing member and the first fastening bolt of an embodiment of a measuring rod support for measuring the bottom elevation of a foundation pit on natural ground.

[0024] Figure Labels

[0025] 1. Level bubble; 2. Horizontal support rod; 3. First fixing component; 4. First fastening bolt; 5. Observation hole; 6. Leveling rod fixing cavity; 7. Electronic distance measuring instrument fixing cavity; 8. Leveling rod body; 9. Second fixing component; 10. Laser distance measuring instrument; 11. Second fastening bolt. Detailed Implementation

[0026] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0027] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0028] like Figure 1 As shown, a leveling rod support for measuring the bottom elevation of a foundation pit on natural ground includes a leveling rod body 8 and a horizontal support rod 2. A first fixing member 3 is fixedly installed at one end of the horizontal support rod 2, and a second fixing member 9 is installed at the other end of the horizontal support rod 2.

[0029] The first fixing member 3 has a trolley fixing cavity 6, which houses part of the trolley body 8. The second fixing member 9 has an electronic rangefinder fixing cavity 7, which houses a laser rangefinder 10. The size of the trolley fixing cavity 6 is adapted to the size of the trolley body 8, and the size of the electronic rangefinder fixing cavity 7 is adapted to the size of the laser rangefinder 10.

[0030] Both the first fixing member 3 and the second fixing member 9 are convex-shaped structures with identical upper and lower openings, and the protruding ends of both the first fixing member 3 and the second fixing member 9 are open. The open end of the first fixing member 3 is fixedly connected by the first fastening bolt 4, and the open end of the second fixing member 9 is fixedly connected by the second fastening bolt 11.

[0031] A level bubble 1 is fixedly mounted on the horizontal support rod 2. Circular observation holes 5, perpendicular to the horizontal support rod 2, are provided on the side walls of both the first fixing member 3 and the second fixing member 9. The leveling rod body 8 has graduation lines, and the axis of the horizontal support rod 2 is aligned with the +0.5m graduation line of the leveling rod body 8. The center of the observation hole 5, the axis of the horizontal support rod 2, and the bottom of the laser rangefinder 10 are all on the same straight line.

[0032] The horizontal support rod 2 can be made of aluminum alloy square tube, with a length, width and height of 15mm, 30mm and 500mm respectively; the first fixing part 3 and the second fixing part 9 can be made of convex aluminum alloy steel tube, with a length, width and height of 3mm, 30mm and 56mm respectively. The first fixing part 3 and the second fixing part 9 are welded and fixed to the horizontal support rod 2 respectively. The diameter of the observation hole 5 is 20mm and the height of the tower gauge body 8 is 5m.

[0033] When this utility model device is used in practice:

[0034] First, check that all parts are intact, ensure that the level bubble 1 can indicate the level normally, and that the first fastening bolt 4 and the second fastening bolt 11 can be tightened and loosened smoothly.

[0035] Then place the tower gauge body 8 and the laser rangefinder 10 into the corresponding fixed cavity, and slowly tighten the first fastening bolt 4 and the second fastening bolt 11 until the tower gauge body 8, the laser rangefinder 10 and the horizontal support rod 2 form a stable whole. Be careful to avoid over-tightening and damaging the equipment.

[0036] Align the axis of the horizontal support rod 2 with the +0.5m scale line of the leveling rod body 8. Align the bottom of the laser rangefinder 10 with the elevation +0.50m, ensuring that the center of the observation hole 5, the axis of the horizontal support rod 2, and the bottom of the laser rangefinder 10 are on the same straight line, and then connect and fix them.

[0037] Place the assembled device on the natural ground beside the foundation pit. Turn on the laser rangefinder 10 and align it with the bottom of the trench. Observe the level bubble 1 and slowly adjust the horizontal support rod 2 until the level bubble 1 is horizontally centered. Finally, based on the elevation control points on site, use the level to measure and mark the elevation within the trench, and record the measurement data. After the measurement is completed, loosen all fastening bolts, remove the leveling rod and laser rangefinder 10, clean the horizontal support rod 2, and store it properly for future use.

[0038] Therefore, this utility model adopts the above-mentioned tower rod support for measuring the bottom elevation of the foundation pit on natural ground, which can quickly and effectively measure the bottom elevation of the foundation pit, greatly reduce the number of manual laborers required, significantly shorten the measurement time, and thus effectively improve social productivity, providing strong support for the construction of various foundation pit projects.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. A measuring rod support for measuring the bottom elevation of a foundation pit on natural ground, characterized in that: The device includes a leveling rod body and a horizontal support rod. A first fixing member is fixedly installed at one end of the horizontal support rod, and a second fixing member is installed at the other end of the horizontal support rod. A leveling rod fixing cavity is provided inside the first fixing member, which contains part of the leveling rod body. An electronic distance measuring instrument fixing cavity is provided inside the second fixing member, and a laser distance measuring instrument is installed inside the electronic distance measuring instrument fixing cavity. A level bubble is fixedly installed on the horizontal support rod.

2. The measuring rod support for measuring the bottom elevation of a foundation pit on natural ground as described in claim 1, characterized in that: Both the first and second fixing members have circular observation holes perpendicular to the horizontal support rod on their side walls.

3. The measuring rod support for measuring the bottom elevation of a foundation pit on natural ground, as described in claim 2, is characterized in that: Both the first and second fixing members are convex-shaped structures with the same top and bottom openings, and the protruding ends of both the first and second fixing members are open.

4. A measuring rod support for measuring the bottom elevation of a foundation pit on natural ground, as described in claim 3, is characterized in that: The open end of the first fastener is fixedly connected by a first fastening bolt, and the open end of the second fastener is fixedly connected by a second fastening bolt.

5. A measuring rod support for measuring the bottom elevation of a foundation pit on natural ground, as described in claim 2, characterized in that: The length, width, and height of the horizontal support rod are 15mm, 30mm, and 500mm, respectively; the length, width, and height of the first fixing member are 3mm, 30mm, and 56mm, respectively; the diameter of the observation hole is 20mm; and the height of the tower gauge body is 5m.

6. A measuring rod support for measuring the bottom elevation of a foundation pit on natural ground, as described in claim 2, characterized in that: The center of the observation hole, the axis of the horizontal support rod, and the bottom of the laser rangefinder are on the same straight line.

7. A measuring rod support for measuring the bottom elevation of a foundation pit on natural ground, as described in claim 6, characterized in that: The measuring rod body is equipped with scale lines, and the axis of the horizontal support rod is aligned with the +0.5m scale line of the measuring rod body.

8. A measuring rod support for measuring the bottom elevation of a foundation pit on natural ground, as described in claim 1, characterized in that: The dimensions of the measuring rod fixing cavity are adapted to the dimensions of the measuring rod body, and the dimensions of the electronic rangefinder fixing cavity are adapted to the dimensions of the laser rangefinder.

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