Measurement auxiliary device for single-person elevation control in construction engineering foundation trench earth excavation stage

Abstract

The invention relates to a measurement auxiliary device for single-person elevation control in a construction engineering foundation trench earth excavation stage. The measurement auxiliary device comprises an observation ruler and a detachable base, wherein scales are arranged on the two sides of the observation ruler, and insertion holes are formed in the two sides of the bottom end of the observation ruler; the base is a circular steel plate with the diameter of 15 cm and the thickness of 1 cm, a square hole matched with the cross section of the observation ruler in size is formed in the center of the top of the base to form a first inserting groove, a second inserting groove is formed in the side wall of the base, a sliding groove is formed in the top of the base, a push button is slidably connected into the sliding groove, an elastic piece is fixed to the inner wall of the sliding groove, and one end of the elastic piece is connected with the push button. One side of the push button is fixedly connected with an insertion rod, the outer diameter of the insertion rod is matched with the inner diameter of the insertion hole, and the insertion rod is inserted into the insertion hole to lock the observation ruler. The base is additionally arranged at the bottom of the telemeter rod, traditional manual rod supporting operation is replaced, a measurer can independently complete measuring point arrangement and reading after erecting a level gauge, the labor cost is directly reduced by 50%, and the telemeter rod is particularly suitable for foundation trench leveling operation needing dense point arrangement.

Description

Technical Field

[0001] The invention relates to the technical field of construction engineering measurement, in particular to a measurement auxiliary device for single-person elevation control during the foundation trench excavation stage of a construction engineering project. Background Art

[0002] During the final leveling phase of excavation for a construction project, frequent elevation measurements are required to control the bottom height of the foundation pit. Traditionally, this method requires two surveyors: one to operate a level, and the other to hold a tape measure at the measuring point, keeping it vertical. This approach has significant drawbacks:

[0003] Waste of manpower: During the leveling phase, dense measurement points are required (measurements are taken every 5-10 meters), and the tape measurer must follow the movement of the equipment throughout the entire process, resulting in inefficient use of manpower in large foundation pits.

[0004] Insufficient stability: Manually holding the ruler can easily cause the ruler to tilt due to soft ground or operator fatigue (>1° will cause elevation error), affecting the leveling accuracy;

[0005] Scenario limitations: In the foundation pit leveling area after excavation, the ground is flat and mostly compacted sand and gravel. The traditional two-person mode does not take advantage of this working condition.

[0006] Therefore, there is an urgent need for a lightweight measurement auxiliary device that is specially designed for foundation pit leveling conditions and can be operated by one person. Summary of the Invention

[0007] In order to solve the problems of the prior art, the present invention provides a measurement auxiliary device for single-person elevation control during the foundation trench excavation stage of a construction project.

[0008] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: a measurement auxiliary device for single-person elevation control during the foundation trench excavation stage of a construction project, comprising an observation ruler and a detachable base:

[0009] There are scales on both sides of the sight ruler, and sockets on both sides of the bottom;

[0010] The base is a circular steel plate with a diameter of 15 cm and a thickness of 1 cm. A square hole matching the cross-sectional dimensions of the sight ruler is provided at the top center to form a first slot. A second slot is provided on the sidewall of the base, and the first and second slots are interconnected.

[0011] A slide groove is provided on the top of the base, a push button is slidably connected in the slide groove, an elastic member is fixed on the inner wall of the slide groove, and one end of the elastic member is connected to the push button;

[0012] One side of the push button is fixedly connected to a rod, the outer diameter of which matches the inner diameter of the socket, and is used to be inserted into the socket to lock the position of the sight gauge;

[0013] The observation ruler can be inserted into the first slot and fixed by the insertion rod to form a working state; or inserted into the second slot and fixed by the insertion rod to form a storage state.

[0014] In this application, a removable circular steel plate base (15cm in diameter and 1cm in thickness) is added to the bottom of a conventional tower ruler. A first slot (working position) and a second slot (storage position) are provided on the base. Together with a latch mechanism (push button + latch rod + spring) with an elastic reset function, this achieves the elevation measurement function under single-person operation. Its core functions are:

[0015] Solve the pain point of two-person operation: Traditional measurement requires a dedicated person to hold the ruler. This device uses a heavy steel plate base (>7kg) to replace manual operation, ensuring that the observation ruler stands stably at the measuring point during the foundation pit leveling stage.

[0016] Quickly switch working modes: After the observation ruler is inserted into the first slot, the rod is automatically inserted into the jack at the bottom of the ruler under the drive of the spring (Φ0.5cm rod with Φ0.6cm jack), forming a rigid connection to prevent the ruler from shaking during measurement;

[0017] Optimize on-site operation efficiency: A single surveyor can complete the entire process of setting out the ruler, fixing it, and reading it. This is particularly suitable for foundation pit leveling operations with relatively small terrain undulations. The excavation elevation can be controlled in real time when working with an excavator.

[0018] Integrated storage function: The second slot (depth > 1 / 2 foot width) and the latch mechanism allow the ruler to be stored vertically for easy transportation and storage.

[0019] Enhanced practicality: The anti-slip texture on the bottom of the base further improves the stability of gravel floors.

[0020] In a specific embodiment, the insertion rod is a steel cylinder with a diameter of 0.5 cm, and the insertion hole is a through hole with a diameter of 0.6 cm.

[0021] In a specific embodiment, the elastic member is a compression spring, which is used to drive the push button to reset so that the insertion rod remains inserted into the socket.

[0022] In a specific embodiment, the depth of the second slot is equal to half of the width of the sight ruler 1, and is used to stably fix the sight ruler in the storage state.

[0023] In a specific embodiment, the bottom of the base is provided with anti-slip lines.

[0024] The beneficial effects of the present invention are:

[0025] 1. By adding a circular steel plate base with a diameter of 15 cm and a thickness of 1 cm to the bottom of the scale, the traditional manual ruler operation is replaced. After setting up the level, the surveyor can independently complete the measurement point arrangement and reading, directly reducing the labor cost by 50%. It is especially suitable for foundation pit leveling operations that require dense point arrangement.

[0026] 2. The bottom surface of the base steel plate is in full contact with the foundation pit ground, and the anti-slip texture on the bottom overcomes the problem of easy tilting of the manual ruler. The risk of tilting on the compacted gravel ground is close to zero, ensuring the reliability of the elevation data.

[0027] 3. The innovative elastic latch mechanism (push button, insertion rod, compression spring) enables the sight ruler to be disassembled and assembled in seconds: Working state: The sight ruler is inserted into the first slot on the top of the base, and the insertion rod automatically inserts into the hole at the bottom of the ruler. A 0.1mm assembly gap is reserved to ensure smooth locking. Storage state: The sight ruler is inserted into the second slot on the side wall. The depth is designed to be 1 / 2 of the width of the ruler to ensure that there is no risk of loosening or falling off during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the working state of the present invention.

[0029] Figure 2 It is a schematic diagram of the storage state of the present invention.

[0030] Figure 3 It is a schematic diagram of the explosion structure of the present invention.

[0031] Figure 4 It is an overall schematic diagram of the base of the present invention.

[0032] Figure 5 It is a first cross-sectional schematic diagram of the base of the present invention.

[0033] Figure 6 It is a second cross-sectional schematic diagram of the base of the present invention.

[0034] Figure 7 It is a schematic diagram of the measuring state of the staff of the present invention.

[0035] Figures 1 to 7 Middle: 1. Observation ruler; 2. Base; 11. Scale; 12. Socket; 21. First slot; 22. Second slot; 23. Slide; 24. Push button; 241. Insert rod; 25. Elastic member. DETAILED DESCRIPTION

[0036] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] like Figures 1 to 7 The illustrated measurement auxiliary device for single-person elevation control during the foundation pit excavation phase of a construction project comprises an observation ruler 1 and a detachable base 2. The observation ruler 1 is provided with scales 11 on both sides, and a socket 12 is provided on both sides of the bottom end. The base 2 is a circular steel plate with a diameter of 15 cm and a thickness of 1 cm. A square hole matching the cross-sectional dimensions of the observation ruler 1 is provided at the center of its top to form a first slot 21. A second slot 22 is provided on the side wall of the base 2, and the first slot 21 and the second slot 22 are interconnected. A slide 23 is provided at the top of the base 2, into which a push button 24 is slidably connected. An elastic member 25 is fixed to the inner wall of the slide 23, and one end of the elastic member 25 is connected to the push button 24. A rod 241 is fixedly connected to one side of the push button 24. The outer diameter of the rod 241 matches the inner diameter of the socket 12, and is used to be inserted into the socket 12 to lock the position of the observation ruler 1. The observation ruler 1 can be inserted into the first slot 21 and fixed by the rod 241 to form a working state; or inserted into the second slot 22 and fixed by the rod 241 to form a storage state.

[0038] The insertion rod 241 is a steel cylinder with a diameter of 0.5 cm, and the insertion hole 12 is a through-hole with a diameter of 0.6 cm. The elastic member 25 is a compression spring that drives the push button 24 to reset, keeping the insertion rod 241 inserted into the insertion hole 12. The second slot 22 has a depth equal to half the width of the sight ruler 1 and provides a stable hold for the sight ruler 1 when stored. The bottom of the base 2 is provided with anti-slip grooves.

[0039] In summary, the present invention has the following working principles:

[0040] 1. Device preparation (from storage state to working state)

[0041] Take out the observation ruler 1 in the storage state from the second slot 22:

[0042] Pressing the push button 24 causes the rod 241 to retract into the slot 23, compressing the spring 25 to store force;

[0043] When the insertion rod 241 is completely separated from the insertion hole 12 at the bottom of the sight ruler 1, the sight ruler is pulled out vertically upward.

[0044] Insert the sight ruler 1 into the first slot 21 on the top of the base 2:

[0045] After aligning with the square hole, lower the sight ruler vertically until the bottom of the ruler touches the base steel plate;

[0046] Release the push button 24, and the spring 25 pushes the rod 241 to automatically insert into the holes 12 on both sides of the ruler bottom (Φ0.5cm rod with Φ0.6cm hole, leaving 0.1mm assembly gap), completing the rigid locking.

[0047] 2. On-site measurement operation

[0048] Place the device after selecting the measurement point:

[0049] The bottom surface of the base 2 with anti-skid texture is attached to the ground of the foundation groove, and the self-stabilization is achieved by using the deadweight of the steel plate and the friction of the texture.

[0050] Single person completes elevation measurement:

[0051] The surveyor sets up a level at a fixed point and directly reads the scale 11 value of the sight ruler 1;

[0052] If you need to adjust the point, lift the device and move it as a whole (the latch is locked to ensure that the ruler does not deviate).

[0053] 3. Operation completed (from working state to storage state)

[0054] Pressing the push button 24 causes the insertion rod 241 to exit the insertion hole 12 of the sight ruler 1 , and the sight ruler is removed from the first insertion slot 21 .

[0055] Insert the sight ruler 1 sideways into the second slot 22 of the base 2:

[0056] Insert the ruler to a depth of 1 / 2 of its width (approximately 5-8 cm, depending on the specific ruler size);

[0057] Release the push button 24 and insert the insertion rod 241 into the insertion hole 12 to complete vertical fixation, which is convenient for transportation and storage.

[0058] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A measuring auxiliary device for single-person elevation control during the excavation phase of a foundation trench in a construction project, comprising an observation ruler (1) and a detachable base (2); The observation ruler (1) is provided with scales (11) on both sides, and has sockets (12) on both sides of the bottom end; The base (2) is a circular steel plate with a diameter of 15 cm and a thickness of 1 cm. A square hole matching the cross-sectional dimensions of the observation ruler (1) is provided at the center of the top thereof to form a first slot (21). A second slot (22) is provided on the side wall of the base (2). The first slot (21) and the second slot (22) are interconnected. A slide groove (23) is provided on the top of the base (2), a push button (24) is slidably connected in the slide groove (23), an elastic member (25) is fixed on the inner wall of the slide groove (23), and one end of the elastic member (25) is connected to the push button (24); One side of the push button (24) is fixedly connected to an insertion rod (241), the outer diameter of the insertion rod (241) matches the inner diameter of the insertion hole (12), and is used to be inserted into the insertion hole (12) to lock the position of the sight ruler (1); in, The sight ruler (1) can be inserted into the first slot (21) and fixed by the insertion rod (241) to form a working state; or inserted into the second slot (22) and fixed by the insertion rod (241) to form a storage state.

2. The measurement auxiliary device for single-person elevation control during the foundation trench excavation phase of a construction project according to claim 1 is characterized in that: The insertion rod (241) is a steel cylinder with a diameter of 0.5 cm, and the insertion hole (12) is a through hole with a diameter of 0.6 cm.

3. The measurement auxiliary device for single-person elevation control during the foundation trench excavation phase of a construction project according to claim 1 is characterized in that: The elastic member (25) is a compression spring used to drive the push button (24) to reset so that the insertion rod (241) remains inserted into the insertion hole (12).

4. The measurement auxiliary device for single-person elevation control during the foundation trench excavation phase of a construction project according to claim 1 is characterized in that: The depth of the second slot (22) is equal to 1 / 2 of the width of the observation ruler (1), and is used to stably fix the observation ruler (1) in the storage state.

5. The measurement auxiliary device for single-person elevation control during the foundation trench excavation phase of a construction project according to claim 1 is characterized in that: The bottom of the base (2) is provided with anti-slip patterns.

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