Round inspection well masonry control device
The use of a circular inspection well construction control device has solved the problem of inconsistent construction quality and progress during the construction of circular inspection wells, improved construction accuracy and efficiency, and ensured the stability and safety of the well structure.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-03-03
AI Technical Summary
The existing circular inspection well construction process relies on the operator's personal experience and manual operation. The existing construction equipment cannot provide sufficient support and guidance, resulting in inconsistent construction quality and schedule, making it difficult to maintain consistent construction quality and schedule.
A circular inspection well construction control device is adopted, including round steel, plumb bob, suspension assembly, L-shaped square steel and circular level bubble. Through precise measurement and positioning devices, errors caused by manual operation are reduced, ensuring the accuracy of the well body in the vertical and horizontal directions.
It improves construction efficiency, reduces reliance on technical skills, facilitates standardized construction for bricklayers of different skill levels, ensures the stability and safety of the well structure, reduces construction errors, and improves overall construction quality.
Smart Images

Figure CN223963954U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of drainage construction, and in particular to a control device for the construction of circular inspection wells. Background Technology
[0002] Circular inspection wells are an important component of urban infrastructure, widely used in drainage systems, underground pipe networks, and various public facilities to ensure the smooth and safe operation of cities. These inspection wells have a unique structural design, typically circular, which enhances structural stability and facilitates later inspection and maintenance. The construction quality of circular inspection wells directly affects their service life and functionality.
[0003] Therefore, strict adherence to relevant technical specifications and standards is necessary during the masonry process. This work demands a high level of skill from the operators. They need solid basic bricklaying skills and a deep understanding of spatial geometry to accurately determine the arrangement and combination of bricks. Furthermore, precise measurement and positioning require the use of specialized measuring tools.
[0004] Despite continuous advancements in the construction technology of circular inspection wells, traditional methods often rely on the operator's personal experience and manual labor due to limitations in related construction equipment and auxiliary tools. This leads to fluctuations in construction efficiency and accuracy. Particularly in the construction of circular inspection wells, a high degree of precision in spatial geometry and accurate brick positioning is required. Existing construction equipment may not provide sufficient support and guidance, making it difficult to maintain consistent construction quality and progress. Utility Model Content
[0005] To address the issue that the existing masonry process for circular inspection wells relies on the operator's personal experience and manual operation, and that existing masonry equipment may not provide sufficient support and guidance, making it difficult to maintain consistent construction quality and schedule during the masonry process.
[0006] This application provides a circular inspection well construction control device, including: a round steel bar, a plumb bob, a suspension assembly, an L-shaped square steel bar, and a circular level bubble;
[0007] The round steel bar has a ring structure, and its inner diameter is consistent with the design inner diameter of the target inspection well. The axis of the round steel bar is perpendicular to the horizontal plane.
[0008] The plumb bob is fixed above the center of the round steel by the suspension assembly. The suspension assembly includes a vertical connecting rod and a top fixing ring. One end of the vertical connecting rod is connected to the center of the round steel, and the other end suspends the plumb bob.
[0009] L-shaped square steel includes a horizontal arm and a vertical arm. The horizontal arm is parallel to the lower end face of the round steel and is connected to the outer side wall of the round steel through an adjustable connector.
[0010] The circular level bubble is embedded in the top fixing ring on the upper end face of the round steel.
[0011] In one feasible implementation, the round steel bar includes an outer round steel bar and a fixed steel bar, wherein the fixed steel bar includes a straight steel bar;
[0012] The outer round steel bar is circular, the length of the straight steel bar is the diameter of the outer round steel bar, and both ends of the straight steel bar are fixed to the outer round steel bar;
[0013] The straight steel bars consist of two pieces, which are fixed together at an intersection, with the intersection point of the two straight steel bars located on the axis of the round steel bar.
[0014] In one feasible implementation, the fixing steel also includes right-angle steel;
[0015] The right angle of the right angle steel is fixed to the straight steel, and the two ends of the right angle steel are fixed to the outer round steel.
[0016] There are four right-angle steel bars, which are respectively set at both ends of the two straight steel bars.
[0017] In one feasible implementation, the vertical arm of the L-shaped square steel is provided with a rubber pad on the inner side, and the bottom of the horizontal arm is provided with anti-slip texture.
[0018] In one feasible implementation, the horizontal arm includes a telescopic section and a fixed section, and the adjustable connector includes bolts and nuts;
[0019] The bolt is fixed to the fixed section, the telescopic section is connected to the fixed section by the nut, and the distance between the telescopic section and the fixed section is adjusted by the bolt.
[0020] In one feasible implementation, the vertical arm has a vertical groove on its inner side and is fixedly connected to the horizontal arm by fastening bolts;
[0021] The bolt head of the fastening bolt is embedded in the vertical groove and is slidably connected to the vertical groove.
[0022] In one feasible implementation, the outer circumference of the round steel bar is uniformly distributed with scale markings, which are the positions of the two side edges of the brick calculated based on the diameter of the target inspection well.
[0023] In one feasible implementation, the lower end of the plumb bob is provided with a magnetic base, and the bottom surface of the magnetic base is in contact with the foundation surface of the target inspection well.
[0024] In one feasible implementation, the circular level bubble is embedded in a transparent protective cover, which is connected to a round steel bar by a snap fastener.
[0025] In one feasible implementation, the top of the round steel bar is provided with an annular limiting groove for temporarily placing masonry tools or measuring instruments.
[0026] This application provides a circular inspection well construction control device. By using a ring-shaped round steel bar with an inner diameter matching the designed inner diameter of the target inspection well, dimensional accuracy during construction is ensured, avoiding errors caused by manual operation. This control device reduces reliance on individual operator experience, and through standardized guidance, bricklayers of varying skill levels can construct according to uniform standards, improving overall construction efficiency. Precise measurement and positioning prevent structural instability caused by construction errors, thus enhancing the safety performance of the inspection well. Attached Figure Description
[0027] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the embodiments of the present invention. Obviously, the drawings described below are merely some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.
[0028] Figure 1 This is a schematic diagram of the structure of a circular inspection well construction control device shown in an exemplary embodiment of this application;
[0029] Figure 2 This is a schematic diagram illustrating the use of a circular inspection well construction control device according to an exemplary embodiment of this application.
[0030] Attached image annotations:
[0031] 1-Round steel; 2-Plumb bob; 3-Suspension assembly; 4-L-shaped square steel; 5-Round level bubble; 11-Outer round steel; 12-Fixing steel; 31-Vertical connecting rod; 32-Top fixing ring; 121-Right angle steel; 122-Straight steel; 41-Horizontal arm; 42-Vertical arm. Detailed Implementation
[0032] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided to make the present invention more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a full understanding of the implementation of embodiments of the present invention.
[0033] Currently, the construction of circular inspection wells mainly relies on manual experience and simple tools. During construction, bricklayers typically use the following methods: manual measurement and positioning, initially determining the well's center using a string line and plumb bob, supplemented by measuring the inner diameter with a tape measure, and adjusting the position of bricks layer by layer; using wooden or steel curved templates as inner wall supports, which are removed after construction; and using independent levels, straightedges, and other tools for step-by-step calibration, repeatedly adjusting the angles of the bricks. Manual measurement is easily affected by subjective factors, such as slack string lines and plumb bob swing, leading to deviations in center positioning, which in turn cause problems such as insufficient roundness of the well and misalignment of the pipe openings; the use of multiple tools (level, plumb bob, tape measure) at each step causes interruptions in the process, with an average of 30-40 minutes required to build one layer, and repeated corrections are necessary, seriously affecting the construction period.
[0034] To address the aforementioned problems, this application provides a circular inspection well construction control device, referring to... Figure 1 As shown, it includes: round steel bar 1, plumb bob 2, suspension assembly 3, L-shaped square steel bar 4, and circular level bubble 5; round steel bar 1 is a ring structure, the inner diameter of round steel bar 1 is consistent with the design inner diameter of the target inspection well, and the axis of round steel bar 1 is perpendicular to the horizontal plane. Round steel bar 1 serves as an external template during construction, and its precise dimensions control the final shape of the well body.
[0035] The plumb bob 2 is fixed directly above the center of the round steel 1 by a suspension assembly 3. The suspension assembly 3 includes a vertical connecting rod 31 and a top fixing ring 32. One end of the vertical connecting rod 31 is connected to the center of the round steel 1, and the other end suspends the plumb bob 2. The plumb bob 2 ensures the accuracy of the device in the vertical direction. The suspension assembly 3 provides a vertical calibration reference, ensuring that the plumb bob 2 is stably suspended during the masonry process, free from external interference, and remains vertical.
[0036] The L-shaped square steel 4 includes a horizontal arm 41 and a vertical arm 42. The horizontal arm 41 is parallel to the lower end face of the round steel 1 and is connected to the outer wall of the round steel 1 through an adjustable connector. The horizontal arm 41 provides a horizontal reference to ensure the horizontal stability during well construction, while the vertical arm 42 serves as a support structure to enhance the overall stability of the L-shaped square steel 4.
[0037] A circular level bubble 5 is embedded in the top fixing ring 32 on the upper end face of the round steel 1, with its center located on the axis of the round steel 1. The circular level bubble 5 is used to detect the horizontal state of the device. By observing the position of the bubble, the operator can quickly adjust the device to be horizontal to ensure the masonry accuracy.
[0038] This embodiment utilizes precise measurement and positioning devices to reduce errors caused by manual operation, ensuring the accuracy of the well body in both vertical and horizontal directions. This reduces the time spent on repeated measurements and corrections, shortens the construction period, and improves overall construction efficiency. It provides operators with clear masonry references, reducing reliance on skill levels and facilitating standardized construction by masons of varying skill levels. Furthermore, precise masonry control ensures structural stability of the well body, improving its service life and safety. It effectively solves the technical challenges of traditional masonry methods, achieving a dual improvement in construction accuracy and efficiency, and providing a more reliable and efficient solution for the construction of circular inspection wells.
[0039] In some embodiments of this application, the round steel 1 includes an outer round steel 11 and a fixed steel 12, the fixed steel 12 including a straight steel 122. The outer round steel 11 is circular, the length of the straight steel 122 is the diameter of the outer round steel 11, and both ends of the straight steel 122 are fixed to the outer round steel 11. There are two straight steels 122, which are fixed together at an intersection, and the intersection point of the two straight steels 122 is located on the axis of the round steel 1.
[0040] The outer circular steel bar 11 not only provides a stable masonry reference but also reduces friction with the bricks through its smooth curved surface, facilitating masonry operations. The fixing steel bar 12 enhances the overall stability of the circular steel bar 1, with two straight steel bars 122 intersecting and fixing it along the axis of the circular steel bar 1. This intersecting fixing method not only strengthens the structural strength of the circular steel bar 1 but also provides a stable suspension point for the suspension assembly 3, ensuring the precise vertical calibration of the plumb bob 2.
[0041] Meanwhile, the intersection of the straight steel 122 is located on the axis of the round steel 1, providing an accurate horizontal reference point for the horizontal arm 41 of the L-shaped square steel 4. Furthermore, the introduction of the fixing steel 12 simplifies the installation and adjustment process of the L-shaped square steel 4, providing positioning for its installation.
[0042] In some embodiments of this application, the fixing steel 12 further includes right-angle steel 121; the right angle of the right-angle steel 121 is fixed on the straight steel 122, and the two ends of the right-angle steel 121 are fixed on the outer round steel 11; there are four right-angle steels 121, which are respectively arranged at the two ends of two straight steels 122.
[0043] Understandably, the outer round steel 11 provides the external formwork for the well body construction, and the straight steel 122 and the right-angle steel 121 together form a stable triangular support structure, significantly enhancing the stability of the round steel 1. This improves the device's resistance to deformation during the construction process.
[0044] In some embodiments of this application, the vertical arm 42 of the L-shaped square steel 4 is provided with a rubber pad on the inner side, and the bottom of the horizontal arm 41 is provided with anti-slip texture.
[0045] The rubber pad increases the friction between the vertical arm 42 and the well wall, preventing the L-shaped square steel 4 from sliding during the masonry process and ensuring the accuracy of the masonry. The anti-slip texture improves the adhesion between the horizontal arm 41 and the brick surface or support surface, preventing slippage during adjustment or fixing, and further enhancing the stability of the device.
[0046] In some embodiments of this application, the horizontal arm 41 of the L-shaped square steel 4 includes a telescopic section and a fixed section. The telescopic section and the fixed section are connected by an adjustable connector, namely a bolt and a nut. The bolt is fixed to the fixed section, while the telescopic section is tightly connected to the fixed section by the nut, allowing the telescopic section to move freely along the axial direction of the bolt. Based on the threaded engagement principle of the bolt and nut, the axial movement of the telescopic section is achieved by rotating the nut, thereby adjusting the length of the horizontal arm. By rotating the nut, the distance between the telescopic section and the fixed section can be precisely adjusted, thus accommodating bricks of different sizes.
[0047] This embodiment solves the problem of the fixed length of the horizontal arm of the L-shaped square steel in traditional masonry construction, which makes it impossible to stably fix it to bricks of different sizes. By adjusting the telescopic section, the applicability of the L-shaped square steel 4 is enhanced, the masonry accuracy is improved, and the horizontal arm is always kept parallel to the well wall, providing a stable horizontal reference for masonry construction. Furthermore, the operation process is simplified and the construction difficulty is reduced.
[0048] In some embodiments of this application, the vertical arm 42 of the L-shaped square steel 4 is provided with a vertical groove on its inner side and is fixedly connected to the horizontal arm 41 by fastening bolts. The bolt head of the fastening bolt is embedded in the vertical groove and is slidably connected to the vertical groove. This design allows the vertical arm 42 to slide up and down relative to the horizontal arm 41 within a certain range to adapt to masonry requirements at different heights.
[0049] This embodiment is based on the sliding fit principle of the groove and the bolt head. Height adjustment is achieved by loosening the fastening bolt and sliding the vertical arm up and down, then tightening the bolt again. This solves the problem of the fixed position and inflexible height adjustment of the vertical arm of the L-shaped square steel in traditional masonry construction. Through the cooperation of the vertical groove and the fastening bolt, the height of the vertical arm can be easily adjusted, ensuring that the L-shaped square steel always remains perpendicular to the well wall.
[0050] In some embodiments of this application, the outer circumference of the round steel bar 1 is uniformly marked with scale markings. The scale markings represent the positions of the two side edges of the brick calculated based on the diameter of the target inspection well.
[0051] Specifically, the exact location is calculated using the following formula:
[0052]
[0053] Where: L: length of a single brick; S: design width of the mortar joint; C: design perimeter of the inspection well (C=π×D, D is the inner diameter of the inspection well). Based on the calculation results, the scale marks are evenly distributed on the outside of the round steel at angular intervals, and the positions of the two side lines corresponding to each brick are clearly marked with scale lines.
[0054] This embodiment uses specific parameters for illustration. For example, in a standard inspection well (inner diameter D = 1000 mm), if the brick length L = 240 mm and the mortar joint S = 10 mm, then the actual occupied length of a single brick is L + S = 250 mm. The perimeter of the inspection well is C = 3140 mm, and the required number of bricks N = C / (L + S) = 12.56, rounded up to 13 bricks. The central angle corresponding to each brick is 360° / 13 ≈ 27.7°. The scale markings are set at 27.7° intervals to mark the start and end edges of each brick.
[0055] The graduated markings provide construction workers with an intuitive reference point, enabling them to accurately determine the positional relationship of each brick or masonry element during the construction process. Secondly, the even distribution and fixed intervals of the graduated markings help ensure the uniformity and symmetry of the masonry work, thereby improving the overall structural stability.
[0056] In some embodiments of this application, the lower end of the plumb bob 2 is provided with a magnetic base, the bottom surface of which contacts the foundation surface of the target inspection well. The close contact between the bottom surface of the magnetic base and the foundation surface ensures that the plumb bob remains vertical throughout the construction process. This design avoids the tilting problem caused by uneven foundation surfaces in traditional plumb bobs.
[0057] In traditional masonry work, plumb bobs cannot remain vertical due to uneven foundation surfaces. However, this embodiment ensures that the plumb bob 2 remains vertical under all circumstances through the close contact between the magnetic base and the foundation surface. This not only improves the stability of the plumb bob but also enhances the applicability of the device, making it suitable for various uneven foundation surfaces.
[0058] In some embodiments of this application, the circular level bubble 5 is embedded in a transparent protective cover, which is connected to the round steel 1 by a buckle to form a closed protective space, thus avoiding the problem of the circular level bubble being damaged or contaminated during the construction process.
[0059] In some embodiments of this application, the top of the round steel bar 1 is provided with an annular limiting groove for temporarily placing masonry tools or measuring instruments. This embodiment simplifies the placement process of tools or instruments, enhances the practicality of the device, and improves construction convenience.
[0060] When using the circular inspection well construction control device of this application, refer to... Figure 2 As shown, firstly, accurately measure and mark the midpoint of the manhole at the construction site. Then, use the plumb bob of this device for centering. The lower end of the plumb bob has a magnetic base, which can firmly adhere to the target manhole foundation surface, ensuring that the plumb bob always remains vertical. Through centering adjustments, ensure the accurate position of the manhole during construction. Secondly, lay a brick as the initial layer, ensuring that the position of this brick is accurate and stable. Then, clamp the L-shaped square steel (including the horizontal and vertical arms) of the device to this brick. Gently tap the brick with a rubber mallet to adjust the position of the L-shaped square steel, so that the central circular bubble level is centered, thus ensuring the device is level. Next, after ensuring the L-shaped square steel is stable and level, begin laying the remaining bricks of this layer. During laying, ensure that the top of the remaining bricks is on the same horizontal plane as the round steel. This can be judged by observing the contact between the top of the brick and the round steel; if necessary, auxiliary tools can be used for fine-tuning. Finally, follow the above steps to build the manhole layer by layer. After each layer of bricks is laid, the position and level of the L-shaped square steel should be readjusted to ensure that each layer of bricks is on the same horizontal plane as the round steel. Repeat this operation until the manhole is completed.
[0061] As described above, the circular inspection well masonry control device provided in this application mainly consists of round steel, L-shaped square steel, a plumb bob, a suspension assembly, and a circular spirit level. The round steel, as the core component, has evenly distributed graduations on its outer circumference, providing precise positioning references for construction personnel. The plumb bob ensures the device's vertical accuracy, while the suspension assembly provides a vertical calibration benchmark to ensure stable suspension of the plumb bob during masonry. The L-shaped square steel is fixed to the bricks via a clamping device, ensuring horizontality and verticality during masonry. The circular spirit level is used to monitor the device's horizontal state in real time, facilitating adjustments. With this device, construction personnel can precisely control the masonry position and horizontality of each layer of bricks, effectively reducing errors and improving the overall structural stability and safety. The design of the L-shaped square steel and clamping device simplifies the cumbersome adjustment steps in traditional masonry, improving construction efficiency. Simultaneously, the intuitiveness of the graduations reduces the skill requirements for construction personnel. By precisely controlling the masonry position and angle, this device helps form a more uniform circular well wall structure, enhancing the well wall's load-bearing capacity and durability.
[0062] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the disclosure in the specification and the embodiments. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein.
Claims
1. A circular inspection shaft masonry control device, characterized by, The utility model relates to a kind of inspection well detection device, including: Round steel (1), plumb (2), suspension assembly (3), L type square steel (4) and round bubble (5); The round steel (1) is annular structure, the inner diameter of the round steel (1) is consistent with the design inner diameter of target inspection well, and the axis of the round steel (1) is perpendicular to horizontal plane; The plumb (2) is fixed in the center of the round steel (1) by the suspension assembly (3), the suspension assembly (3) includes vertical connecting rod (31) and top fixed ring (32), one end of the vertical connecting rod (31) is connected with the center of round steel (1), and the other end suspends the plumb (2); L type square steel (4) includes horizontal arm (41) and vertical arm (42), the horizontal arm (41) is parallel with the lower end surface of the round steel (1), and is connected with the outer side wall of round steel (1) by adjustable connecting piece; The round bubble (5) is embedded in the top fixed ring (32) of the upper end surface of the round steel (1).
2. A circular inspection shaft masonry control device according to claim 1, characterized in that The round steel (1) includes outer side round steel (11) and fixed steel (12), and the fixed steel (12) includes straight steel (122); The outer side round steel (11) is circular, the length of the straight steel (122) is the diameter of the outer side round steel (11), and the two ends of the straight steel (122) are fixed on the outer side round steel (11); The straight steel (122) is two, and is fixedly crossed, and the intersection point of the two straight steels (122) is located on the axis of the round steel (1).
3. A circular inspection shaft masonry control device according to claim 2, characterized in that The fixed steel (12) further includes right angle steel (121); The right angle of the right angle steel (121) is fixed on the straight steel (122), and the two ends of the right angle steel (121) are fixed on the outer side round steel (11); The right angle steel (121) has four, and is respectively arranged at the two ends of the two straight steels (122).
4. A circular inspection shaft masonry control device according to claim 1, characterized in that The inner side of the vertical arm (42) of the L type square steel (4) is provided with rubber pad, and the bottom of the horizontal arm (41) is provided with anti-skid line.
5. A circular manhole masonry control device according to claim 1, wherein The horizontal arm (41) includes telescopic section and fixed section, and the adjustable connecting piece includes bolt and nut; The bolt is fixed on the fixed section, the telescopic section is connected with the fixed section through the nut, and the distance between the telescopic section and the fixed section is adjusted through the bolt.
6. A circular manhole masonry control device according to claim 1, wherein The inner side of the vertical arm (42) is provided with vertical sliding groove, and is fixedly connected with horizontal arm (41) through fastening bolt; The bolt head of the fastening bolt is embedded in the vertical sliding groove, and is slidably connected with the vertical sliding groove.
7. A circular manhole masonry control device according to claim 1, wherein The outer side of the round steel (1) is uniformly distributed with scale mark, and the scale mark is the brick side line position calculated according to the diameter of the target inspection well.
8. A circular manhole masonry control device according to claim 1, wherein The lower end of the plumb (2) is provided with magnetic base, and the bottom surface of the magnetic base is in contact with the foundation surface of the target inspection well.
9. A circular manhole masonry control device according to claim 1, wherein The round bubble (5) is embedded in transparent protective cover, and the protective cover is connected with the round steel (1) through buckle.
10. A circular manhole masonry control device according to claim 1, wherein The top of the round steel (1) is provided with annular limiting groove, for temporarily placing masonry tool or measuring instrument.