A movable shaft well measurement wire-throwing device
By using a foldable bracket and anti-sway components for the movable vertical shaft measuring and projection device, the problems of space occupation and low accuracy of fixed projection devices are solved, enabling efficient and accurate vertical shaft construction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUNNAN CHIHONG ZN & GE CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-06-23
AI Technical Summary
The existing vertical shaft plumb line device occupies the central space of the shaft, interferes with temporary facilities and excavation and masonry operations, and the plumb line is prone to swaying, resulting in low accuracy and making it difficult to meet the requirements of high-precision construction.
Design a movable vertical shaft measuring and projection device, which adopts a foldable bracket and an anti-sway component. When the bracket is unfolded, it accurately positions the center of the shaft. When folded, it is retracted to the side. The anti-sway component reduces the impact of wind force through water bucket damping, ensuring the stability of the plumb bob.
It improved construction efficiency, avoided interference between equipment and temporary facilities and excavation work, improved the accuracy of line projection, and met the requirements of high-precision construction.
Smart Images

Figure CN224398670U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of shaft excavation equipment technology, and in particular to a mobile shaft in-well measuring and projection device. Background Technology
[0002] In related technologies, during the excavation and lining of vertical shafts, it is necessary to measure the distance from the center of the shaft to the surrounding rock, using the shaft center as a reference, to determine the rough and net cross-sections of the shaft. Therefore, the shaft center line projection is a crucial step in ensuring construction accuracy. Existing vertical shaft line projection devices are mostly fixed structures, deployed with the shaft center as a reference, occupying the middle position of the shaft for extended periods.
[0003] However, in actual construction, due to the influence of terrain conditions, shaft diameter, and construction organization plan, some temporary facilities (such as hoisting platforms and formwork supports) need to occupy the center position of the shaft for a long time, causing interference between the fixed line-casting device and the temporary facilities. At the same time, when shaft excavation and lining operations are required, the fixed line-casting device will occupy the working space, affecting construction efficiency. In addition, the plumb line (composed of a plumb line and a plumb weight) of the existing line-casting device is easily affected by wind and airflow inside the shaft, resulting in swaying and reduced line-casting accuracy, making it difficult to meet the requirements of high-precision construction.
[0004] Therefore, a device is needed to quickly measure the distance from the center of the well to the surrounding rock when the well needs to be drilled; and to quickly retract the drilling device when the well is not needed, so that the well can be excavated and lined. Utility Model Content
[0005] To solve or partially solve the problems existing in the related technologies, this application provides a movable vertical shaft in-well measurement and projection device, which can solve the problems of existing vertical shaft projection devices occupying the central space of the shaft, interfering with temporary facilities and excavation operations, and the low accuracy caused by the easy shaking of the plumb line.
[0006] This application provides a movable vertical shaft measuring and projection device, including a foldable bracket 1, a plumb line device, and an anti-sway component 3. The foldable bracket 1 includes a fixed section and a folding section. The fixed section is horizontally arranged on the side wall of the vertical shaft along the radial direction of the shaft. A support member 4 is provided at the bottom of the fixed section facing the center of the shaft. The folding section is hinged to the end of the fixed section and is provided with a groove structure that matches the support member 4. A sliding groove is opened on the bottom surface of the folding section along the length direction. A slider 5 is slidably installed in the sliding groove. The plumb line device includes a plumb line 6 and a plumb weight 7. One end of the plumb line 6 is connected to the slider 5, and the other end is connected to the plumb weight 7. The anti-sway component 3 is a bucket, which is sleeved on the outside of the plumb weight 7, and the anti-sway component 3 can accommodate the plumb weight 7.
[0007] Optionally, in some solutions, the anti-shaking component 3 is a transparent bucket with liquid level markings on the bucket wall and a drain hole with a valve at the bottom of the bucket.
[0008] Optionally, in some embodiments, the foldable bracket 1 is equipped with a ruler and a level 2.
[0009] Optionally, in some embodiments, the inner wall of the anti-shake component 3 is provided with a cushioning pad.
[0010] The technical solution provided in this application may include the following beneficial effects:
[0011] This application's foldable bracket enables flexible switching of the line-casting device: the foldable bracket is set on the side of the shaft, and when unfolded, its end can be precisely positioned in the center of the shaft to meet the line-casting requirements; when not in use, it can be folded and retracted to the side of the shaft to avoid occupying the central space of the shaft, thus solving the problem of interference with temporary facilities and excavation and masonry operations and improving construction efficiency;
[0012] The anti-sway component effectively improves the accuracy of line projection: by placing a water bucket on the outside of the plumb bob, water is poured into the bucket during use. The water creates resistance to the plumb bob, which can significantly reduce the impact of wind and airflow on the plumb bob and prevent the plumb line from swaying. At the same time, the transparent water bucket and liquid level scale make it easy to observe the state of the plumb bob, further ensuring the accuracy of line projection.
[0013] Simple structure and easy operation: The foldable bracket can be quickly switched between unfolding and folding through hinges and locking components. The scale and level on the foldable bracket can quickly determine whether the slider is in the center of the shaft. The installation, use and recycling of the whole device are simple and adaptable to the complex environment of vertical shaft construction.
[0014] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description
[0015] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.
[0016] Figure 1 This is a schematic diagram of the structure of the movable vertical shaft in-well measuring and projection device shown in the embodiments of this application;
[0017] Figure 2 This is another structural schematic diagram of the movable vertical shaft in-well measuring and projection device shown in the embodiments of this application.
[0018] Figure label:
[0019] 1-Foldable bracket, 2-Level, 3-Anti-sway component, 4-Support component, 5-Slider, 6-Plumb line, 7-Plumb weight. Detailed Implementation
[0020] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this application more thorough and complete, and to fully convey the scope of this application to those skilled in the art.
[0021] It should be understood that although the terms "first," "second," "third," etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0022] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0023] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0024] To address the aforementioned issues, this application provides a movable vertical shaft in-well measurement and projection device, which solves the problems of existing vertical shaft projection devices occupying fixed space in the shaft center, interfering with temporary facilities and excavation operations, and having low accuracy due to easy shaking of the plumb line.
[0025] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.
[0026] See Figure 1-2 The movable vertical shaft measuring and projection device includes a foldable bracket 1, a plumb line device, and an anti-sway component 3. The foldable bracket 1 includes a fixed section and a folding section. The fixed section is horizontally arranged on the side wall of the vertical shaft along the radial direction of the shaft. A support member 4 is provided at the bottom of the end of the fixed section facing the center of the shaft. The folding section is hinged to the end of the fixed section and is provided with a groove structure that matches the support member 4. A sliding groove is opened on the bottom surface of the folding section along the length direction. A slider 5 is slidably installed in the sliding groove. The plumb line device includes a plumb line 6 and a plumb weight 7. One end of the plumb line 6 is connected to the slider 5, and the other end is connected to the plumb weight 7. The anti-sway component 3 is a bucket, which is sleeved on the outside of the plumb weight 7 and can accommodate the plumb weight 7. A scale and a level 2 are provided on the foldable bracket 1.
[0027] The support component 4 is slidably installed at the end of the fixed section, cooperating with the groove structure on the folding section to ensure that the foldable support 1 is in a straight line after being unfolded. When not in use, the folding section is flipped back to avoid interference with subsequent work. After the foldable support 1 is unfolded, the slider 5 in the sliding groove is slidable according to the diameter of the shaft. The position of the slider 5 is determined by a scale and placed at the center of the shaft. The level of the foldable support 1 is observed by a level 2. The anti-sway component 3 can be hinged to the lower part of the folding section of the foldable support 1 via a telescopic rod, or installed on the outside of the plumb bob 7 using a support structure in current technology. The foldable support 1 is made of alloy steel and has an anti-corrosion coating on its surface. The plumb line 6 is a high-strength nylon line with a line-laying device at its top to adjust the length of the plumb line 6.
[0028] In some embodiments, the anti-shaking component 3 is a transparent bucket with liquid level markings on the bucket wall, a drain hole with a valve at the bottom of the bucket, and a cushioning pad on the inner wall of the anti-shaking component 3.
[0029] The anti-sway component effectively improves the accuracy of line casting. By placing a water bucket around the outside of the plumb bob 7 and filling the bucket with water during use, the water creates resistance to the plumb bob 7, which can significantly reduce the impact of wind and airflow on the plumb bob 7 and prevent the plumb line from swaying. At the same time, the transparent water bucket and liquid level scale make it easy to observe the plumb bob's status, further ensuring the accuracy of line casting. The inner wall of the anti-sway component 3 is equipped with a buffer pad to prevent the plumb bob 7 from colliding with the bucket wall and causing secondary shaking when it sways.
[0030] During recovery, open the drain hole of the bucket to drain the water; rotate the folded section of the foldable bracket 1 around the hinge device and recover it to a position close to the inner wall of the vertical shaft to complete the recovery of the device.
[0031] Finally, it should be noted that in this document, relationships such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "include," "contain," or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.
[0032] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.
[0033] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.
Claims
1. A movable vertical shaft in-well measuring and projection device, characterized in that: The movable vertical shaft measuring line projection device includes a foldable bracket (1), a plumb line device, and an anti-sway component (3). The foldable bracket (1) includes a fixed section and a folding section. The fixed section is horizontally set on the side wall of the vertical shaft along the radial direction of the shaft. A support member (4) is provided at the bottom of the end of the fixed section facing the center of the shaft. The folding section is hinged to the end of the fixed section and is provided with a groove structure that matches the support member (4). A sliding groove is opened on the bottom surface of the folding section along the length direction. A slider (5) is slidably installed in the sliding groove. The plumb line device includes a plumb line (6) and a plumb weight (7). One end of the plumb line (6) is connected to the slider (5), and the other end is connected to the plumb weight (7). The anti-sway component (3) is a bucket, which is sleeved on the outside of the plumb weight (7), and the anti-sway component (3) can accommodate the plumb weight (7).
2. The movable vertical shaft in-well measuring and projection device according to claim 1, characterized in that: The anti-shaking component (3) is a transparent bucket with liquid level markings on the bucket wall and a drain hole with a valve at the bottom.
3. The movable vertical shaft in-well measuring and projection device according to claim 1 or 2, characterized in that: The foldable bracket (1) is equipped with a ruler and a level (2).
4. The movable vertical shaft in-well measuring and projection device according to claim 3, characterized in that: The inner wall of the anti-shake component (3) is provided with a cushioning pad.