Limited space measuring instrument placement platform

Abstract

This utility model discloses a confined space measuring instrument placement platform, set below an I-beam; it includes symmetrically arranged first vertical plates, with a mounting mechanism above the first vertical plates, which is hung on the lower end of the I-beam; a connecting beam is provided between the upper ends of the first vertical plates; a second vertical plate is slidably connected to the lower end of the first vertical plates, and an adjusting plate is fixedly connected between the lower ends of the two second vertical plates, with a lifting mechanism between the adjusting plate and the first vertical plates; a placement plate is located between the second vertical plates above the adjusting plate; a level is located on the inner side below one of the second vertical plates. This utility model hangs the platform on the I-beam, detaching it from the construction ground, providing a stable placement space for measuring instruments.

Description

Technical Field

[0001] This utility model relates to a placement platform, specifically a confined space measuring instrument placement platform, and belongs to the field of loading platform technology. Background Technology

[0002] In the construction of buildings, municipal works, and other engineering projects, accurate measurement is indispensable for construction quality control. This requires the use of surveying instruments such as levels, rangefinders, and total stations to collect data and perform accuracy calibration, providing data support for key processes such as structural installation, dimensional verification, and location positioning. The stability of the surveying instruments directly affects the accuracy of the data, which in turn relates to construction quality and safety. Therefore, a dedicated placement platform is needed to adapt to confined space operating scenarios, enabling stable mounting and convenient deployment of the instruments. For example, Chinese utility model patent CN207556559U discloses a vibration damping platform for easy engineering measuring instruments, specifically including a platform base, a platform panel mounted on the platform base, and screw-adjustable feet. The platform base is a square box-shaped structure with a hollow top, the hollow part forming a receiving cavity. Multiple air-cushioned shock absorbers are evenly arranged on the bottom surface of the receiving cavity, and rubber damping strips are provided on each side. The platform panel is embedded in the receiving cavity and mounted on the air-cushioned shock absorbers, with its edges contacting and engaging with the rubber damping strips. Connecting screw sleeves are provided at the four corners of the bottom surface of the platform base, and these connecting screw sleeves are screwed to the screw-adjustable feet. Such platforms are often used by placing them directly on the ground. During construction, the ground is often affected by objective factors such as work disturbances, material stacking, and uncured foundations, making it difficult to guarantee flatness. This makes it difficult to quickly adjust the platform to a level state during actual deployment, which may indirectly affect the stability of the measuring instruments and hinder the accurate conduct of subsequent measurement work. Utility Model Content

[0003] The purpose of this invention is to provide a platform for placing measuring instruments in a confined space. This invention hangs the platform on an I-beam, detaching it from the construction ground, thus providing a stable space for placing the measuring instruments.

[0004] The technical solution of this utility model is as follows: a confined space measuring instrument placement platform is set below an I-beam; it includes symmetrically arranged first vertical plates, with a mounting mechanism above the first vertical plates, the mounting mechanism being hung on the lower end of the I-beam; a connecting beam is provided between the upper ends of the first vertical plates; a second vertical plate is slidably connected to the lower end of the first vertical plates, and an adjusting plate is fixedly connected between the lower ends of the two second vertical plates, with a lifting mechanism between the adjusting plate and the first vertical plates; a placement plate located between the second vertical plates is provided above the adjusting plate; a level is provided on the inner side below one of the second vertical plates.

[0005] The aforementioned confined space measuring instrument placement platform includes a mounting mechanism comprising slots symmetrically arranged above the first vertical plate, a hanging plate rotatably connected within the slots, a receiving groove at the rotating short end of the hanging plate, and a limit block slidably connected within the receiving groove.

[0006] In the aforementioned confined space measuring instrument placement platform, the width of the hanging plate is the same as the width of the first vertical plate.

[0007] The aforementioned confined space measuring instrument placement platform includes a lifting mechanism comprising symmetrically arranged mounting plates, which are fixedly connected to a first vertical plate on the same side; a hydraulic cylinder is provided on the first vertical plate, and the telescopic end of the hydraulic cylinder passes through the mounting plate and is fixedly connected to an adjusting plate; multiple guide rods are slidably connected to the mounting plate, and the lower ends of the guide rods are fixedly connected to the adjusting plate.

[0008] The aforementioned confined space measuring instrument placement platform has a limiting plate at the upper end of the guide rod.

[0009] The aforementioned confined space measuring instrument placement platform has a placement frame below the adjustment plate, and a load-bearing block is placed inside the placement frame.

[0010] In the aforementioned confined space measuring instrument placement platform, the adjustment plate and the placement plate are vertically arranged.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. In this utility model, the platform is hung on the I-beam by the mounting mechanism above the first vertical plate, which detaches the platform from the construction ground and effectively avoids the impact of uneven ground on instrument placement. The sliding cooperation between the first and second vertical plates, combined with the lifting mechanism between the adjustment plate and the first vertical plate, allows for flexible adjustment of the overall height of the platform to meet different working height requirements in limited spaces. The placement plate between the second vertical plates provides a dedicated and stable placement area for measuring instruments, ensuring that the instruments are placed neatly. The level on the inner side below one of the second vertical plates can provide real-time feedback on the platform's level status, allowing the operator to quickly adjust the platform using the lifting mechanism based on the monitoring results, ensuring that the platform is level and thus guaranteeing the stability of the measuring instruments. This provides strong support for the accurate conduct of measurement work in limited spaces.

[0012] 2. When mounting this utility model, first lift the entire platform so that the lower end of the mounting plate is higher than the upper surface of the lower end of the I-beam. Then rotate the mounting plate 90° so that its long end faces the I-beam. At this time, since there is no obstruction below, the internal limiting block of the receiving groove at the short end of the mounting plate automatically slides down to form a mechanical limit, which can effectively prevent the mounting plate from reversing on its own. This ensures that the platform will not shift or fall off due to construction vibration or slight contact after mounting, thus ensuring the stability of the measuring instrument. When removing it, simply push the limiting block back into the receiving groove to release the limit, and then rotate the mounting plate 90° in the opposite direction to reset it. The whole process does not require additional fixing tools, and the steps are simple and efficient. It is suitable for the characteristics of limited working space and inconvenient operation in confined spaces, which greatly reduces the difficulty of platform installation and disassembly. At the same time, the firm mounting method avoids the influence of uneven ground on measurement, providing a reliable guarantee for accurate measurement in confined spaces. Attached Figure Description

[0013] Figure 1 This is an installation diagram of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model; Figure 3 This is a structural diagram of the mounting mechanism.

[0014] The labels in the attached diagram are as follows: 1-first vertical plate, 2-hanging mechanism, 3-connecting beam, 4-second vertical plate, 5-adjusting plate, 6-lifting mechanism, 7-placement plate, 8-level, 9-placement frame, 10-load block, 20-groove, 21-hanging plate, 22-accommodating groove, 23-limiting block, 60-mounting plate, 61-hydraulic cylinder, 62-guide rod, 63-limiting plate. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0016] Example: A confined space measuring instrument placement platform is set below an I-beam; the configuration is as follows. Figure 1-3As shown, the platform includes symmetrically arranged first vertical plates 1, which are made of high-strength aluminum alloy and provide vertical support for the entire platform, bearing the weight of the mounting mechanism 2, lifting mechanism 6, and subsequent components. The mounting mechanism 2 is located above the first vertical plates 1 and is hung on the lower end of the I-beam, enabling a detachable connection between the platform and the I-beam, allowing the platform to be lifted off the ground and avoiding uneven ground from affecting measurement accuracy. A connecting beam 3 is provided between the upper ends of the first vertical plates 1. The connecting beam 3 is made of stainless steel and is used to enhance the integrity of the two first vertical plates 1 and prevent deformation of the vertical plates due to unilateral stress. A second vertical plate 4 is slidably connected to the lower end of the first vertical plate 1. The second vertical plate 4 is also made of high-strength aluminum alloy, and its sliding contact surface with the first vertical plate 1 is treated with a wear-resistant coating. This allows for the adjustment of the platform height, and it works in conjunction with the lifting mechanism 6 to adapt to different working heights. An adjusting plate 5 is fixedly connected between the two second vertical plates 4. The adjusting plate 5 is made of Q235 steel plate and connects the second vertical plates 4, supporting the placement plate 7 and the load block 10, transmitting lifting power and distributing force. A lifting mechanism 6 is provided between the adjusting plate 5 and the first vertical plate 1 to drive the platform up and down, precisely adjusting the platform height to achieve leveling. Above the adjusting plate 5, a placement plate 7 is located between the second vertical plates 4. The placement plate 7 is made of non-slip stainless steel and is used to place measuring instruments, providing a stable and non-slip surface for the instruments. The adjusting plate 5 and the placement plate 7 are vertically aligned. A level 8 is located on the inner side below one of the second vertical plates 4. The level 8 is a high-precision bubble level and is used to monitor the platform's level in real time, providing a direct reference for leveling operations. Figure 2 and Figure 3As shown, the mounting mechanism 2 includes symmetrically arranged slots 20 above the first vertical plate 1. The slots 20 are rectangular through slots designed to accommodate the rotation of the mounting plate 21, providing rotational space for the mounting plate 21. A mounting plate 21, made of stainless steel, is rotatably connected within the slots 20. It hooks onto the I-beam and provides limiting and fixing, securely mounting the platform to the beam. The rotating short end of the mounting plate 21 has a receiving groove 22, a rectangular groove designed to accommodate a limiting block 23, providing sliding space for the limiting block 23. A limiting block 23, made of stainless steel with a smooth surface, is slidably connected within the receiving groove 22 to mechanically limit the mounting plate 21, preventing it from reversing and falling off. The width of the mounting plate 21 is the same as the width of the first vertical plate 1, preventing it from protruding beyond the outer side of the vertical plate during resetting, thus preventing the protruding part from interfering with operations within the confined space or colliding with other structures; ensuring that it does not exceed the first vertical plate 1 during resetting, thereby not affecting its mounting. In use, first lift the entire platform so that the lower end of the mounting plate 21 is higher than the upper surface of the lower end of the I-beam. Then rotate the mounting plate 21 90° so that its long end faces the I-beam and fits against the lower surface of the beam. At this time, since there is no obstruction below, the internal limiting block 23 of the receiving groove 22 at the short end of the mounting plate 21 automatically slides down under the action of gravity, forming a mechanical limit with the side of the I-beam, which can effectively prevent the mounting plate 21 from reversing on its own. When removing it, simply push the limiting block 23 back into the receiving groove 22 to release the limit, and then rotate the mounting plate 21 90° in the opposite direction to reset it. The whole process does not require any additional fixing tools, the steps are simple and efficient, and it is suitable for the characteristics of limited working space and inconvenient operation in confined spaces. It greatly reduces the difficulty of platform installation and disassembly. At the same time, the firm mounting method avoids the influence of uneven ground on measurement, providing a reliable guarantee for accurate measurement in confined spaces. Figure 2 As shown, the lifting mechanism 6 includes symmetrically arranged mounting plates 60. The mounting plates 60 are made of Q235 steel and are used to fix the hydraulic cylinder 61 and guide rod 62, providing a stable mounting foundation for the lifting power assembly. The mounting plates 60 are fixedly connected to the first vertical plate 1 on the same side. The first vertical plate 1 is equipped with a hydraulic cylinder 61, which is a small high-pressure hydraulic cylinder used to provide lifting power and drive the adjusting plate 5 to move up and down to adjust the platform height. The telescopic end of the hydraulic cylinder 61 passes through the mounting plate 60 and is fixedly connected to the adjusting plate 5. The component is fixed with a pin shaft to transmit hydraulic power, allowing the adjusting plate 5 to rise and fall synchronously with the hydraulic cylinder 61. Multiple guide rods 62 are slidably connected to the mounting plate 60. These guide rods 62 are made of stainless steel with a chrome-plated surface and provide guidance for the rising and falling of the adjusting plate 5, preventing it from shifting or tilting during operation. The lower end of each guide rod 62 is fixedly connected to the adjusting plate 5, and the upper end is equipped with a limiting plate 63 made of stainless steel. This limiting plate 63 restricts the sliding stroke of the guide rod 62, preventing it from slipping off the mounting plate 60. Figure 1As shown, a placement frame 9 is provided below the adjustment plate 5, and a weight block 10 is placed inside the placement frame 9. The weight block 10 is made of cast iron, which lowers the center of gravity of the platform and improves the stability of the platform.

[0017] Working principle: In use, the platform is first connected to the I-beam by the mounting mechanism 2. The platform is then raised so that the lower end of the mounting plate 21 is higher than the upper surface of the lower end of the I-beam. The mounting plate 21 is rotated 90° so that its long end fits against the lower surface of the beam. At this time, the limiting block 23 in the short end receiving groove 22 of the mounting plate 21 slides out automatically under the action of gravity, forming a mechanical limit with the side of the beam to prevent the mounting plate 21 from reversing on its own.

[0018] Subsequently, based on the instrument's operating height requirements, the platform height is adjusted via the lifting mechanism 6: The hydraulic cylinder 61 is activated, its telescopic end pushing the adjusting plate 5 up and down. The sliding engagement between the first vertical plate 1 and the second vertical plate 4 provides guidance for lifting. The guide rod 62 on the mounting plate 60 further restricts the lateral displacement of the adjusting plate 5, preventing tilting or deviation during lifting. The limiting plate 63 at the upper end of the guide rod 62 prevents it from slipping, ensuring a smooth and controllable lifting process. The operator observes the platform status in real time through the level 8 on the second vertical plate 4, fine-tuning the extension and retraction of the hydraulic cylinder 61 according to the bubble position until the platform is level.

[0019] The weight block 10 placed in the frame 9 below the adjustment plate 5 can lower the center of gravity of the platform, enhance the overall anti-interference ability, and counteract the shaking caused by construction vibration or slight touch; the placement plate 7 above the adjustment plate 5 provides a dedicated placement area for measuring instruments, and the adjustment plate 5 and the placement plate 7 are set vertically to ensure that the instruments are placed neatly and the force is even, further ensuring the placement stability of the measuring instruments.

[0020] During disassembly, simply push the limit block 23 upward to release the limit, and rotate the hanging plate 21 90° in the opposite direction to separate the platform from the crossbeam. The entire process requires no additional tools, making it suitable for confined spaces with limited space and inconvenient operation, enabling efficient deployment and accurate measurement of the instrument.

Claims

1. A confined space measuring instrument placement platform, set below an I-beam; characterized in that: The system includes a first vertical plate (1) arranged symmetrically, a mounting mechanism (2) above the first vertical plate (1) and the mounting mechanism (2) hanging on the lower end of the I-beam; a connecting beam (3) between the upper ends of the first vertical plate (1); a second vertical plate (4) slidably connected to the lower end of the first vertical plate (1), an adjusting plate (5) fixedly connected between the lower ends of the two second vertical plates (4), and a lifting mechanism (6) between the adjusting plate (5) and the first vertical plate (1); a placement plate (7) located between the second vertical plates (4) above the adjusting plate (5); and a level (8) located on the inner side below the second vertical plate (4) on one side.

2. The confined space measuring instrument placement platform according to claim 1, characterized in that: The mounting mechanism (2) includes slots (20) symmetrically arranged above the first vertical plate (1), a hanging plate (21) is rotatably connected in the slot (20), and a receiving groove (22) is provided at the rotating short end of the hanging plate (21), and a limit block (23) is slidably connected in the receiving groove (22).

3. The confined space measuring instrument placement platform according to claim 2, characterized in that: The width of the hanging plate (21) is the same as the width of the first vertical plate (1).

4. The confined space measuring instrument placement platform according to claim 1, characterized in that: The lifting mechanism (6) includes symmetrically arranged mounting plates (60), which are fixedly connected to the first vertical plate (1) on the same side; the first vertical plate (1) is provided with a hydraulic cylinder (61), the telescopic end of the hydraulic cylinder (61) passes through the mounting plate (60) and is fixedly connected to the adjusting plate (5); a plurality of guide rods (62) are slidably connected on the mounting plate (60), and the lower end of the guide rods (62) is fixedly connected to the adjusting plate (5).

5. The confined space measuring instrument placement platform according to claim 4, characterized in that: The upper end of the guide rod (62) is provided with a limiting plate (63).

6. The confined space measuring instrument placement platform according to claim 1, characterized in that: The adjustment plate (5) is provided with a placement frame (9) below it, and a weight block (10) is placed in the placement frame (9).

7. The confined space measuring instrument placement platform according to claim 1, characterized in that: The adjustment plate (5) and the placement plate (7) are arranged vertically.

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