Hydraulic heat-insulating well lid
Patent Information
- Application Number
- CN202522313819.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-31
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-10-31
AI Technical Summary
During use, water can easily seep into the pipe body through the gaps of existing hydraulic insulated manhole covers, leading to increased risks of water meter contamination and freezing. In addition, traditional manhole covers are difficult to open and close and are easily damaged.
A hydraulically insulated manhole cover was designed, comprising an annular cover and a water guide pipe for collecting and draining inflowing water. The manhole cover is easily opened and closed by a hydraulic cylinder and equipped with a cleaning brush to clean the water guide pipe and prevent blockage.
It effectively prevents water from accumulating inside the pipe, reduces the risk of water meter contamination and freezing, and improves the ease of opening and closing and the stability of the device, thereby reducing equipment damage.
Smart Images

Figure CN224931110U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of manhole cover technology, and in particular to a hydraulically insulated manhole cover. Background Technology
[0002] Currently, water meter wells in urban water supply systems often freeze or crack due to low winter temperatures, affecting normal water supply and meter reading. Traditional solutions require meter readers to manually lay insulation cotton every winter and repeatedly remove it after winter ends, a cumbersome and inefficient process. Furthermore, opening and closing ordinary manhole covers often relies on manual handling, which is heavy, labor-intensive, and prone to damage. Therefore, hydraulic insulated manhole covers have emerged. By installing a hydraulic cylinder and insulation cotton board inside the cover, workers only need to apply a preliminary pulling or pushing force, and the cover will automatically open or close under the action of the hydraulic cylinder. While existing devices are more labor-saving, they have a drawback: when water drips near the cover, water can flow from the gap between the cover and the pipe into the pipe, not only causing dirt on the water meter and increasing the difficulty of reading the meter, but also increasing the likelihood of the water meter and other equipment freezing and cracking. Utility Model Content
[0003] This utility model proposes a hydraulically insulated well cover to solve the problem that existing devices easily cause dirt and grime on equipment such as water meters.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic insulated manhole cover, including a pipe fitting, the top of which is rotatably connected to a cover plate for shielding itself, and the pipe fitting including a pipe body, the inner wall of which is coaxially fixedly connected to an annular cover, the top of which forms a water guiding cavity, and the bottom of which is fixedly connected to a water guiding pipe, the water guiding pipe communicating with the water guiding cavity.
[0005] Preferably, a guide slope is formed inside the water guiding cavity, and the horizontal height of the guide slope on the side closer to the axis of the pipe is higher than that on the other side.
[0006] Preferably, the outer circumferential surface of the pipe is fixedly connected to an embedded part, the embedded part including an embedded plate, and a reinforcing plate is fixedly connected between the top of the embedded plate and the outer wall of the pipe.
[0007] Preferably, the top of the embedded plate has multiple through-holes for positioning.
[0008] Preferably, the cover plate includes a manhole cover, which is rotatably connected to the pipe body, and the side of the manhole cover away from the pipe body is recessed to form a groove.
[0009] Preferably, a hydraulic cylinder is rotatably connected between the side of the manhole cover away from the groove and the inner wall of the pipe.
[0010] Preferably, a baffle is fixedly connected to the side of the manhole cover away from the groove, and the baffle is provided with a detachable heat insulation cotton board inside, and the outer diameter of the baffle is smaller than the inner diameter of the annular cover.
[0011] Preferably, the well cover has a cleaning hole coaxial with the water pipe, and a movable cleaning brush is installed inside the cleaning hole, with a pull ring fixedly connected to the top of the cleaning brush.
[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows: (1) This application is equipped with an annular cover and a water guide pipe. When water accidentally flows into the pipe body through the gap between the pipe body and the well cover, the water guide cavity on the annular cover can receive and collect the water. Then, the water is discharged out of the annular cover through the water guide pipe. This can effectively prevent water from accumulating in the pipe body and dripping onto the water meter and other equipment, thereby avoiding water meter damage due to water adhesion, reducing the difficulty of reading the meter, and reducing the risk of water meter freezing and cracking caused by water accumulation.
[0013] (2) This application is equipped with a pull ring and a cleaning brush. When it is necessary to clean the water pipe, the operator can pull the cleaning brush to move back and forth inside the water pipe and the annular cover through the pull ring. The scraping action of the cleaning brush can effectively remove the impurities attached to the water pipe and the inner wall of the annular cover, prevent blockage, ensure smooth water discharge, help maintain the normal drainage function of the device, improve drainage efficiency, and reduce the possibility of water accumulation inside the pipe. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is one of the perspective views of this utility model; Figure 2 This is a second perspective view of the present invention; Figure 3 This is a perspective view of the present invention after it has been opened; Figure 4 This is a perspective view of the cover plate component of this utility model after it has been removed. Figure 5 for Figure 4 Exploded view; Figure 6 for Figure 4 Enlarged view of section A; Figure 7 This is one of the exploded views of the cover plate component of this utility model; Figure 8 This is the second exploded view of the cover plate component of this utility model; Figure 9 for Figure 8 Enlarged view of section B; In the diagram: 1. Embedded part; 11. Embedded plate; 12. Reinforcing plate; 13. Positioning hole; 2. Pipe fitting; 21. Pipe body; 22. Guide slope; 23. Annular cover; 24. Water guide pipe; 3. Cover plate; 31. Manhole cover; 32. Groove; 33. Insulation cotton board; 34. Cleaning brush; 35. Hydraulic cylinder; 36. Baffle; 37. Pull ring; 38. Cleaning hole. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] like Figures 1-9 As shown, a hydraulically insulated manhole cover includes a pipe component 2. The top of the pipe component 2 is rotatably connected to a cover plate component 3 for shielding itself. The pipe component 2 includes a pipe body 21. An annular cover 23 is coaxially fixedly connected to the inner wall of the pipe body 21. A water guiding cavity is formed at the top of the annular cover 23. A water guiding pipe 24 is fixedly connected to the bottom of the annular cover 23. The water guiding pipe 24 communicates with the water guiding cavity.
[0018] With the above technical solution, when construction workers install the device, they place the pipe fitting 2 at the required installation location, positioning the pipe body 21 within the water meter. After placement, concrete or asphalt is poured to compact the pipe body 21, thus fixing it in place. The pipe body 21 then covers the water meter well. The cover plate 3 is then pulled and rotated around the pipe body 21 until it completely covers the pipe body 21. The pipe body 21 and cover plate 3 protect the equipment inside the water meter well. When water drips from above the cover plate 3... If water enters the pipe body 21 through the gap between the cover plate 3 and the pipe body 21, it is received by the water guide cavity on the annular cover 23, preventing water from dripping directly onto the water meter and other equipment, thus avoiding equipment contamination and reducing the probability of equipment damage. When the water is in the water guide cavity, it is guided out of the water guide cavity through the water guide pipe 24, allowing the water to be discharged through the pipe body 21, preventing water from accumulating inside the pipe body 21, reducing the probability of equipment damage and contamination inside the pipe body 21, and improving the convenience of meter reading.
[0019] To improve the drainage efficiency of water inside the water guide cavity, such as Figures 4-6As shown, a guide slope 22 is formed inside the water guide cavity, and the horizontal height of the guide slope 22 on the side closer to the axis of the pipe body 21 is higher than that on the other side.
[0020] In this embodiment, after the water flows into the water guiding cavity, the flow of the water is made smoother by the flow guiding slope 22, so that the water can flow more easily through the water guiding pipe 24 and improve the discharge efficiency of the water through the water guiding pipe 24.
[0021] When personnel install pipe body 21, in order to increase the installation strength of pipe body 21, such as Figures 1-5 As shown, a pre-embedded part 1 is fixedly connected to the outer circumferential surface of the pipe body 21. The pre-embedded part 1 includes a pre-embedded plate 11, and a reinforcing plate 12 is fixedly connected between the top of the pre-embedded plate 11 and the outer wall of the pipe body 21.
[0022] In this embodiment, when personnel need to install the pipe body 21, the embedded plate 11 is placed above the water meter well, with the middle position of the embedded plate 11 aligned with the middle position of the water meter well. Then, concrete or asphalt is applied to the embedded plate 11 and pressed down to fix it. After the embedded plate 11 is fixed, it supports the pipe body 21. Furthermore, when the embedded plate 11 is fixed, the strength of the pipe body 21 and the embedded plate 11 is increased by the reinforcing plate 12, making the device more stable after installation.
[0023] After the embedded plate 11 is installed, in order to increase the stability of the embedded plate 11, such as Figures 1-5 As shown, multiple through-holes 13 are formed on the top of the embedded plate 11.
[0024] In this embodiment, when the embedded plate 11 is embedded, asphalt or concrete will also fill the positioning holes 13 on the embedded plate 11, thereby limiting the embedded plate 11 and further improving the stability of the embedded plate 11 laying.
[0025] Furthermore, in this utility model, regarding the aforementioned cover plate 3, as follows: Figure 1 , Figure 2 , Figure 7 and Figure 8 As shown, the cover plate 3 includes a manhole cover 31, which is rotatably connected to the pipe body 21, and the side of the manhole cover 31 away from the pipe body 21 is recessed to form a groove 32.
[0026] In this embodiment, after the pipe body 21 and the pre-embedded plate 11 are pre-embedded and fixed, when it is necessary to protect the equipment in the water meter well, the manhole cover 31 is pulled by the pull groove 32, so that the manhole cover 31 rotates around the pipe body 21 until the manhole cover 31 completely covers the pipe body 21, thereby protecting the water meter and other equipment and pipes in the water pipe well and reducing the probability of damage to the water meter and pipes. When it is necessary to repair the water meter and pipes in the water pipe well, the manhole cover 31 is pulled by the pull groove 32, so that the manhole cover 31 rotates around the pipe body 21 until the pipe body 21 is exposed, so that the water meter and other equipment and pipes inside the pipe body 21 are exposed, making it convenient for personnel to carry out repairs.
[0027] To make the manhole cover 31 easy to open and close, such as Figures 1-5 , Figure 7 and Figure 8 As shown, a hydraulic cylinder 35 is rotatably connected between the side of the manhole cover 31 away from the groove 32 and the inner wall of the pipe body 21.
[0028] In this embodiment, when maintenance personnel need to open the manhole cover 31, they pull the manhole cover 31 through the pull groove 32, causing the manhole cover 31 to rotate around the pipe body 21. After the manhole cover 31 is opened to a certain angle, the hydraulic cylinder 35 works to push the manhole cover 31, making it easier to open. When maintenance personnel need to close the manhole cover 31, they push the manhole cover 31 through the pull groove 32, causing the manhole cover 31 to rotate around the pipe body 21, causing the manhole cover 31 to close to a certain angle. After the manhole cover 31 is closed to a certain angle, the hydraulic cylinder 35 works to pull the manhole cover 31, making it easier to close.
[0029] To reduce water dripping onto equipment such as water meters, Figures 5-8 As shown, a baffle 36 is fixedly connected to the side of the manhole cover 31 away from the groove 32. A removable heat insulation cotton board 33 is provided inside the baffle 36, and the outer diameter of the baffle 36 is smaller than the inner diameter of the annular cover 23.
[0030] In this embodiment, the manhole cover 31 supports the baffle 36, and the insulation cotton board 33 is placed inside the baffle 36 and fixed. After the insulation cotton board 33 is installed, the manhole cover 31 is pulled to rotate around the pipe body 21. When the manhole cover 31 is closed at a certain angle, the hydraulic cylinder 35 works and pulls the manhole cover 31 to close it. The insulation cotton board 33 provides insulation protection for the equipment inside the water pipe well. When the insulation cotton board 33 needs to be replaced, the manhole cover 31 is pulled to rotate around the pipe body 21. When the manhole cover 31 is opened at a certain angle, the hydraulic cylinder 35 works and pushes the manhole cover 31 to open it, thereby exposing the insulation cotton board 33, which can then be removed and replaced.
[0031] In addition, in this utility model, in order to clean the water pipe 24, such as Figures 7-9As shown, the manhole cover 31 has a cleaning hole 38 coaxial with the water pipe 24. A movable cleaning brush 34 is installed inside the cleaning hole 38, and a pull ring 37 is fixedly connected to the top of the cleaning brush 34.
[0032] In this embodiment, when it is necessary to clean the water pipe 24 and the annular cover 23, the cleaning brush 34 is pulled by the pull ring 37. The cleaning brush 34 moves back and forth to clean the water pipe 24 and the annular cover 23, so that the water can be discharged normally through the water pipe 24.
[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A hydraulically insulated manhole cover, characterized in that: The device includes a pipe fitting (2), the top of which is rotatably connected to a cover plate (3) for shielding itself, and the pipe fitting (2) includes a pipe body (21), the inner wall of which is coaxially fixedly connected to an annular cover (23), the top of which forms a water guiding cavity, and the bottom of which is fixedly connected to a water guiding pipe (24), which communicates with the water guiding cavity.
2. The hydraulically insulated manhole cover according to claim 1, characterized in that: The water guiding cavity forms a guiding slope (22), and the horizontal height of the guiding slope (22) on the side near the axis of the pipe body (21) is higher than that on the other side.
3. A hydraulically insulated manhole cover according to claim 1 or 2, characterized in that: An embedded part (1) is fixedly connected to the outer circumferential surface of the pipe body (21). The embedded part (1) includes an embedded plate (11). A reinforcing plate (12) is fixedly connected between the top of the embedded plate (11) and the outer wall of the pipe body (21).
4. A hydraulically insulated manhole cover according to claim 3, characterized in that: The top of the pre-embedded plate (11) forms multiple through-holes (13).
5. A hydraulically insulated manhole cover according to claim 1 or 2, characterized in that: The cover plate (3) includes a manhole cover (31), which is rotatably connected to the pipe body (21), and the side of the manhole cover (31) away from the pipe body (21) is recessed to form a groove (32).
6. A hydraulically insulated manhole cover according to claim 5, characterized in that: A hydraulic cylinder (35) is rotatably connected between the side of the manhole cover (31) away from the groove (32) and the inner wall of the pipe body (21).
7. A hydraulically insulated manhole cover according to claim 5, characterized in that: The manhole cover (31) is fixedly connected to a baffle (36) on the side away from the groove (32). The baffle (36) is provided with a detachable heat insulation cotton board (33), and the outer diameter of the baffle (36) is smaller than the inner diameter of the annular cover (23).
8. A hydraulically insulated manhole cover according to claim 5, characterized in that: The well cover (31) has a cleaning hole (38) coaxial with the water pipe (24). A movable cleaning brush (34) is installed inside the cleaning hole (38), and a pull ring (37) is fixedly connected to the top of the cleaning brush (34).
