Damp-proof well lid of survey mark protection well

By setting up a multi-layer sealing structure between the manhole cover and the manhole wall, the problem of rainwater entering through the gap between the manhole cover and the manhole wall is solved, achieving a moisture-proof effect for the equipment inside the manhole, ensuring normal operation of the equipment and extending its service life.

CN224259453UActive Publication Date: 2026-05-19贾江文 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
贾江文
Filing Date
2025-07-04
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

There is a gap between the cover and the wall of the existing measuring marker protection well. Rainwater accumulates during rainy days and may enter the well, causing damage to the equipment.

Method used

A manhole cover with a multi-layer sealing structure is designed, including a first sealing ring, a sealing cap, first and second sealing frames, a third sealing ring, and related adjusting bladders and connecting pipes. Through the cooperation of these components, the manhole cover and the manhole wall are tightly fitted and sealed in multiple ways to prevent water from entering.

Benefits of technology

It effectively prevents rainwater from entering the well, protects the equipment for normal use, extends the equipment's lifespan, and improves the stability of the measuring marks and the equipment's moisture-proof performance.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224259453U_ABST
    Figure CN224259453U_ABST
Patent Text Reader

Abstract

The utility model provides a moisture-proof well lid of a survey mark protection well, which comprises a well lid body, a first sealing ring arranged in the well lid body, a sealing cover arranged at the bottom of the well lid body, and a sealing assembly arranged in the sealing cover. The sealing assembly comprises a second sealing ring, a first sealing frame, a third sealing ring and a second sealing frame, the second sealing ring is arranged in the sealing cover, the top of the sealing cover is fixedly connected with the first sealing frame and the second sealing frame, and the third sealing ring is arranged in the first sealing frame. According to the moisture-proof well lid of the survey mark protection well, the problems that when the moisture-proof well lid is used, a gap exists between the well lid and the well wall, rainwater can be gathered in the gap when the outside is in a rainwater state, water can possibly enter the well through the gap, and equipment is damaged are solved.
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Description

Technical Field

[0001] This utility model relates to the field of measurement mark technology, and in particular to a moisture-proof well cover for measuring marks. Background Technology

[0002] Survey markers are a collective term for marker stones, targets, and other markings used for surveying to indicate the location of ground survey control points. They are various markers established by surveying departments during surveying and left on the ground, underground, or on buildings after surveying. Each survey marker undergoes precise measurement and calculation to determine its planar position and elevation data on the ground.

[0003] Patent document CN221972491U discloses a "moisture-proof well for protecting measuring markers." This design incorporates a pneumatically pneumatic moisture-proof section at the junction of the well cover and the well opening. After the well cover is closed, the inflated moisture-proof section fills the gap between the cover and the well opening, preventing water and moisture from seeping into the well. This effectively ensures the stability of the measuring marker operation and extends the service life of the electrical components within the measuring marker. However, during use, gaps exist between the well cover and the well wall. When it rains, rainwater accumulates in these gaps, potentially allowing moisture to enter the well and damage the equipment. Therefore, it is necessary to provide a moisture-proof well cover for protecting measuring markers to address these technical problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a moisture-proof well cover for measuring marks that can seal the gap between the well cover and the well wall, preventing rainwater from accumulating in the gap and affecting the normal use of the equipment during rainy weather.

[0005] The present invention provides a moisture-proof manhole cover for measuring marker protection wells, comprising a manhole cover body, a first sealing ring disposed inside the manhole cover body, a sealing cap disposed at the bottom of the manhole cover body, a sealing assembly disposed inside the sealing cap, the sealing assembly comprising a second sealing ring, a first sealing frame, a third sealing ring, and a second sealing frame, the second sealing ring disposed inside the sealing cap, and the first sealing frame and the second sealing frame being fixedly connected to the top of the sealing cap respectively, the third sealing ring being disposed inside the first sealing frame.

[0006] As a moisture-proof well cover for measuring marker protection provided by this utility model, preferably, the second sealing frame has a first slot inside, and the first sealing frame has a second slot inside.

[0007] As a moisture-proof well cover for measuring marker protection provided by this utility model, preferably, the bottom of the well cover body is fixedly connected to a first sealing plate, the outer side of the first sealing plate is slidably connected to the inner wall of the second slot, and the bottom of the well cover body is fixedly connected to a second sealing plate, the outer side of the second sealing plate is slidably connected to the inner wall of the second slot.

[0008] As a moisture-proof well cover for measuring marker protection provided by this utility model, preferably, the top of the sealing cover is provided with a first adjusting bladder, the outer side of the first adjusting bladder is connected to a first connecting pipe, and the end of the first connecting pipe away from the first adjusting bladder is connected to a second sealing ring.

[0009] As a moisture-proof well cover for measuring marker protection provided by this utility model, preferably, a positioning rod is fixedly connected to the bottom of the well cover body, a positioning sleeve is slidably connected to the outside of the positioning rod, and the bottom of the positioning sleeve is fixedly connected to the top of the sealing cover.

[0010] As a moisture-proof well cover for measuring marker protection provided by this utility model, preferably, the inside of the well cover body is provided with a second adjusting bladder, and the outside of the second adjusting bladder is connected to a second connecting pipe.

[0011] As a moisture-proof well cover for measuring mark protection provided by this utility model, preferably, the end of the second connecting pipe away from the second adjusting bladder is connected to a connecting pipe, and the end of the connecting pipe away from the second connecting pipe is connected to the top of the first sealing ring.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This measuring mark protects the moisture-proof manhole cover by incorporating a sealing assembly. This assembly ensures a tight connection between the manhole cover body and the sealing cap, while providing multiple sealing layers to prevent moisture from reaching the sealing cap, thus achieving moisture prevention. The first sealing frame and first sealing plate form a first seal, and the second sealing frame and second sealing plate form a second seal. Simultaneously, the first sealing ring expands to a designated extent, ensuring a tight connection between the outer side of the manhole cover body and the inner wall of the manhole. The second sealing ring expands to a designated position, further ensuring a tight seal. This design ensures a tight seal between the outer side of the sealing cover and the well wall, further sealing the well passage. This allows the well passage to fit snugly against the well cover body and the sealing cover. Simultaneously, the third sealing ring ensures a tight seal between the outer side of the sealing cover and the inner wall of the well cover body, further strengthening the connection between them. This protects the equipment inside the well, preventing moisture from affecting its normal operation. It also solves the problem of gaps between the well cover and the well wall during use, which could allow rainwater to accumulate and potentially damage the equipment. Attached Figure Description

[0014] Figure 1 A schematic diagram of a preferred embodiment of the moisture-proof manhole cover for measuring marker protection provided by this utility model;

[0015] Figure 2 This is a schematic diagram of the sealing assembly of this utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the manhole cover body of this utility model;

[0017] Figure 4 This utility model Figure 3 A magnified schematic diagram of the structure at point A shown.

[0018] The following are the labeling elements in the diagram: 1. Manhole cover body; 2. First sealing ring; 3. Sealing cap; 4. Sealing assembly; 41. Second sealing ring; 42. First sealing frame; 43. Third sealing ring; 44. Second sealing frame; 5. First slot; 6. First sealing plate; 7. Second sealing plate; 8. First adjusting chamber; 9. First connecting pipe; 10. Second slot; 11. Positioning rod; 12. Positioning sleeve; 13. Second adjusting chamber; 14. Second connecting pipe; 15. Connecting pipe. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Please refer to the following: Figure 1 , Figure 2 , Figure 3and Figure 4 ,in Figure 1 A schematic diagram of a preferred embodiment of the moisture-proof manhole cover for measuring marker protection provided by this utility model; Figure 2 This is a schematic diagram of the sealing assembly of this utility model; Figure 3 This is a schematic diagram of the internal structure of the manhole cover body of this utility model; Figure 4 This utility model Figure 3 The diagram shows an enlarged view of the structure at point A. A moisture-proof manhole cover for a measuring marker protection well includes a cover body 1, a first sealing ring 2 inside the cover body 1, a sealing cap 3 at the bottom of the cover body 1, and a sealing assembly 4 inside the sealing cap 3. The sealing assembly 4 includes a second sealing ring 41, a first sealing frame 42, a third sealing ring 43, and a second sealing frame 44. The second sealing ring 41 is located inside the sealing cap 3, and the first sealing frame 42 and the second sealing frame 44 are fixedly connected to the top of the sealing cap 3. The third sealing ring 43 is located inside the first sealing frame 42.

[0021] In this embodiment: Under the action of the first sealing ring 2, the second adjusting bladder 13 causes the first sealing ring 2 to expand, thereby making the outer side of the first sealing ring 2 fit against the well wall, and thus making the well cover body 1 fit tightly against the well wall. At the same time, adjusting the expansion degree of the second sealing ring 41 can make the outer side of the sealing cover 3 fit tightly against the well wall, thereby making the second sealing ring 41 seal the gap between the sealing cover 3 and the well wall to prevent water from entering. At the same time, under the action of the first sealing frame 42 and the second sealing frame 44, two seals can be formed between the sealing cover 3 and the well cover body 1, thereby making the well cover body 1 and the sealing cover 3 tightly connected, thereby preventing water from reaching the sealing cover 3 through the well cover body 1. At the same time, under the action of the third sealing ring 43, the connection between the first sealing frame 42 and the well cover body 1 can be sealed.

[0022] As a technical optimization of this utility model, the second sealing frame 44 has a first slot 5 inside, and the first sealing frame 42 has a second slot 10 inside.

[0023] In this embodiment: by setting the first slot 5 and the second slot 10, when the workers install the manhole cover body 1 and the sealing cover 3, they can connect and position the two through the first sealing plate 6 and the second sealing plate 7.

[0024] As a technical optimization of this utility model, the bottom of the manhole cover body 1 is fixedly connected to the first sealing plate 6, the outer side of the first sealing plate 6 is slidably connected to the inner wall of the second slot 10, and the bottom of the manhole cover body 1 is fixedly connected to the second sealing plate 7, the outer side of the second sealing plate 7 is slidably connected to the inner wall of the second slot 10.

[0025] In this embodiment: by setting the first sealing plate 6 and the second sealing plate 7, under the action of the first sealing plate 6 and the second sealing plate 7, they can be connected to the second sealing frame 44 and the first sealing frame 42 respectively, so that the first sealing frame 42 and the second sealing frame 44 can seal the manhole cover body 1 and the sealing cover 3, thereby making the manhole cover body 1 and the sealing cover 3 tightly connected.

[0026] As a technical optimization of this utility model, the top of the sealing cover 3 is provided with a first adjusting bladder 8, the outer side of the first adjusting bladder 8 is connected to a first connecting pipe 9, and the end of the first connecting pipe 9 away from the first adjusting bladder 8 is connected to the second sealing ring 41.

[0027] In this embodiment: by setting the first adjustment bladder 8, the operator can press the first adjustment bladder 8, and under the action of the first adjustment bladder 8, the expansion degree of the second sealing ring 41 can be adjusted through the first connecting pipe 9, so that the second sealing ring 41 can seal the gap between the sealing cover 3 and the well wall.

[0028] As a technical optimization of this utility model, a positioning rod 11 is fixedly connected to the bottom of the manhole cover body 1, and a positioning sleeve 12 is slidably connected to the outside of the positioning rod 11. The bottom of the positioning sleeve 12 is fixedly connected to the top of the sealing cover 3.

[0029] In this embodiment: by setting the positioning rod 11 and the positioning sleeve 12, it is convenient for workers to disassemble and install the manhole cover body 1 and the sealing cover 3 through the positioning rod 11 and the positioning sleeve 12, thereby improving the maintenance efficiency between the manhole cover body 1 and the sealing cover 3.

[0030] As a technical optimization of this utility model, a second adjusting bladder 13 is provided inside the manhole cover body 1, and a second connecting pipe 14 is connected to the outside of the second adjusting bladder 13.

[0031] In this embodiment: by setting a second adjusting bladder 13, the expansion degree of the first sealing ring 2 can be adjusted through the second connecting pipe 14 and the connecting pipe 15 under the action of the second adjusting bladder 13, so that the first sealing ring 2 can adjust and seal the gap between the well cover body 1 and the well wall.

[0032] As a technical optimization of this utility model, the end of the second connecting pipe 14 away from the second adjusting bladder 13 is connected to a connecting pipe 15, and the end of the connecting pipe 15 away from the second connecting pipe 14 is connected to the top of the first sealing ring 2.

[0033] In this embodiment, the expansion degree of the first sealing ring 2 can be adjusted under the action of the connecting pipe 15.

[0034] The working principle of the measuring mark protection well moisture-proof well cover provided by this utility model is as follows:

[0035] When workers use this device to protect the measuring mark well, they first connect and position the well cover body 1 and the sealing cover 3. Then, the sealing cover 3 is placed in the designated position. At the same time, through the first adjusting bladder 8 and the first connecting pipe 9, the second sealing ring 41 can be expanded to a designated degree, so that the outer side of the second sealing ring 41 fits tightly against the well wall. Then, the well cover body 1 is installed, so that the first sealing plate 6 is tightly connected to the first sealing frame 42. At the same time, through the second sealing frame 44, the second sealing plate 7 is tightly connected. Under the action of the third sealing ring 43, the well cover body 1 and the sealing cover 3 can be tightly connected. After the well cover body 1 is connected, gas enters the connecting pipe 15 through the second adjusting bladder 13 and the second connecting pipe 14. Then, the gas enters the interior of the first sealing ring 2 through the connecting pipe 15. Under the action of the first sealing ring 2, the outer side of the well cover body 1 is tightly connected to the well wall, thus protecting the measuring mark well and preventing moisture from entering.

[0036] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A moisture-proof well cover for measuring marker protection, characterized in that, The manhole cover includes a manhole cover body (1), a first sealing ring (2) is provided inside the manhole cover body (1), a sealing cover (3) is provided at the bottom of the manhole cover body (1), a sealing assembly (4) is provided inside the sealing cover (3), the sealing assembly (4) includes a second sealing ring (41), a first sealing frame (42), a third sealing ring (43) and a second sealing frame (44), the second sealing ring (41) is provided inside the sealing cover (3), the first sealing frame (42) and the second sealing frame (44) are fixedly connected to the top of the sealing cover (3), and the third sealing ring (43) is provided inside the first sealing frame (42).

2. The moisture-proof well cover for measuring marker protection according to claim 1, characterized in that, The second sealing frame (44) has a first slot (5) inside, and the first sealing frame (42) has a second slot (10) inside.

3. The moisture-proof well cover for measuring marker protection according to claim 1, characterized in that, The bottom of the manhole cover body (1) is fixedly connected to a first sealing plate (6), the outer side of the first sealing plate (6) is slidably connected to the inner wall of the second slot (10), and the bottom of the manhole cover body (1) is fixedly connected to a second sealing plate (7), the outer side of the second sealing plate (7) is slidably connected to the inner wall of the second slot (10).

4. The moisture-proof well cover for measuring marker protection according to claim 1, characterized in that, The top of the sealing cover (3) is provided with a first adjusting bladder (8), and the outside of the first adjusting bladder (8) is connected to a first connecting pipe (9). The end of the first connecting pipe (9) away from the first adjusting bladder (8) is connected to a second sealing ring (41).

5. The moisture-proof well cover for measuring marker protection according to claim 1, characterized in that, A positioning rod (11) is fixedly connected to the bottom of the manhole cover body (1), and a positioning sleeve (12) is slidably connected to the outside of the positioning rod (11). The bottom of the positioning sleeve (12) is fixedly connected to the top of the sealing cover (3).

6. The moisture-proof well cover for measuring marker protection according to claim 1, characterized in that, The manhole cover body (1) is provided with a second adjustment bladder (13) inside, and a second connecting pipe (14) is connected to the outside of the second adjustment bladder (13).

7. The moisture-proof well cover for measuring marker protection according to claim 6, characterized in that, The end of the second connecting tube (14) away from the second regulating bladder (13) is connected to a connecting tube (15), and the end of the connecting tube (15) away from the second connecting tube (14) is connected to the top of the first sealing ring (2).