Multifunctional assembly type waterproof well lid
Through the design of assembled waterproof manhole covers, the mortise and tenon structure of straight frames and U-shaped frames and sealant are used to solve the problem of loose connections of existing manhole covers, and achieve rapid splicing and efficient sealing of manhole covers.
Patent Information
- Application Number
- CN202422806401.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-11-18
AI Technical Summary
The connection method of the existing waterproof manhole cover is not strong enough, and the supporting manhole cover is easily deformed, resulting in insufficient sealing.
It adopts a multifunctional assembled waterproof manhole cover design, using a combination of straight frame and U-shaped frame, combined with mortise and tenon structure and sealant. The manhole cover is connected by bolts and waterproof glue is filled in the joints to enhance the connection stability and sealing.
It achieves rapid splicing and firm connection of manhole covers, improves sealing and waterproof performance, ensures that the bottom of each manhole cover is connected to the inner retaining edge, and adds waterproof strips to further improve the sealing effect.
Smart Images

Figure CN223329897U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of manhole covers, in particular to a multifunctional assembled waterproof manhole cover. Background Art
[0002] Waterproof manhole covers are specific types of manhole covers used to prevent water from penetrating underneath the manhole cover. They usually have special designs and materials to ensure that they can effectively prevent water intrusion in various environments and conditions.
[0003] Patent 202320495435.2 discloses a support structure suitable for large-sized manhole covers. The support structure comprises a first support body having a first end and a second end, each of which is provided with a first and a second longitudinally extending tenon block. The support structure comprises a third end and a fourth end, each of which is provided with a first and a second longitudinally extending tenon groove, each open at its bottom. The third and fourth ends are provided with a first stopper located at the top of the first tenon groove and a second stopper located at the top of the second tenon groove, respectively. The first tenon block is mortised with the first tenon groove, with its top abutting against the lower end surface of the first stopper. The second tenon block is mortised with the second tenon groove, with its top abutting against the lower end surface of the second stopper. This structural connection is not strong enough, and the manhole cover is prone to deformation.
[0004] In order to solve the problems existing in the background technology, the utility model provides a multifunctional assembled waterproof manhole cover. Utility Model Content
[0005] The purpose of the utility model is to provide a multifunctional assembled waterproof manhole cover in view of the defects of the prior art.
[0006] In order to achieve the above objectives, the present invention adopts the following technical solutions:
[0007] A multifunctional assembled waterproof manhole cover comprises an outer frame and a manhole cover, wherein the outer frame comprises a straight frame and a U-shaped frame, the two U-shaped frames are butted together to form a single-cover manhole cover outer frame, and the manhole cover is fixed on the single-cover manhole cover outer frame to form a single-cover manhole cover; or, the two U-shaped frames are connected on both sides by multiple straight frames to form a multi-cover manhole cover outer frame, support blocks are fixed at the connection of the opposite straight frames, and multiple manhole covers are fixed on the multi-cover manhole cover outer frame and the support blocks to form a multi-cover manhole cover.
[0008] Furthermore, both the straight frame and the U-shaped frame are provided with inner retaining edges.
[0009] Furthermore, a support block limiting groove is provided in the middle of the inner sidewall of the straight frame. The support block includes a bottom surface and a convex ridge arranged above the central axis of the bottom surface. End surfaces adapted to the support block limiting groove are provided at both ends of the bottom surface, and the end surfaces are limitedly connected to the support block limiting groove.
[0010] Furthermore, a groove is provided in the middle of the straight frame, and a convex strip is provided at the end of the supporting member, and the convex strip is snapped into the groove.
[0011] Furthermore, a protrusion and a recess are respectively provided at both ends of the straight frame, and a protrusion and a recess are also respectively provided at both ends of the U-shaped frame, and the protrusion and the recess are plug-connected.
[0012] Furthermore, both the straight frame and the U-shaped frame are provided with outer ribs.
[0013] Furthermore, the outer rib is provided with reinforcing ribs.
[0014] Furthermore, after the protrusions and recesses between the U-shaped frame and the straight frame or between the straight frames are plugged in, they are connected by connecting bolts, and waterproof glue is filled at the joints.
[0015] Furthermore, the manhole cover includes a top cover and a bottom cover, and the top cover and the bottom cover are connected by fixing bolts and nuts, and a gasket is provided between the nuts and the bottom cover.
[0016] Furthermore, a sealing ring is provided under the manhole cover.
[0017] By adopting the technical solution of the utility model, the beneficial effects of the utility model are: the waterproof manhole cover structure is easy to combine, and a single or multiple manhole covers can be quickly spliced together. The multiple mortise and tenon structures are spliced together, and the connection is firm. Combined with sealants and other structures, the sealing effect is good. The bottom of each manhole cover is connected to the inner retaining edge and is provided with a waterproof strip, which further improves the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This utility model provides a multifunctional assembled waterproof manhole cover structure Figure 1 ;
[0019] Figure 2 This utility model provides a multifunctional assembled waterproof manhole cover structure Figure 2 ;
[0020] Figure 3 The utility model provides a multifunctional assembled waterproof manhole cover with a straight frame;
[0021] Figure 4 The utility model provides a U-shaped frame of a multifunctional assembled waterproof manhole cover;
[0022] Figure 5 The utility model provides a multifunctional assembled waterproof manhole cover support;
[0023] Figure 6 The utility model provides a multifunctional assembled waterproof manhole cover.
[0024] Among them, 1. Top cover, 2. Straight frame, 3. U-shaped frame, 4. Connecting bolts, 5. Bottom cover, 6. Gasket, 7. Fixing bolts, 8. Nuts, 9. Support block limit groove, 10. Protrusion, 11. Outer rib, 12. Inner rib, 13. Reinforcement rib, 14. Sealing ring, 15. Groove, 16. Raised strip, 17. Bottom surface, 18. Raised ridge, 19. Notch, 20. Support block. DETAILED DESCRIPTION
[0025] The specific embodiments of the present invention will be further described with reference to the accompanying drawings.
[0026] As shown in the figure, a multifunctional assembled waterproof manhole cover includes an outer frame and a manhole cover. The outer frame includes a straight frame 2 and a U-shaped frame 3. Both the straight frame 2 and the U-shaped frame 3 are equipped with inner and outer ribs 12 and 11, which contact the bottom surface 17 of the manhole cover to improve sealing. A sealing ring 14 is provided below the manhole cover to further enhance the overall sealing. The outer rib 11 is equipped with reinforcing ribs 13 to strengthen the outer frame.
[0027] The manhole cover includes a top cover 1 and a bottom cover 5, which are connected by fixing bolts 7 and nuts 8. A gasket 6 is provided between the nuts 8 and the bottom cover 5, so that the top cover 1 and the bottom cover 5 have high sealing performance. Example
[0028] The two U-shaped frames 3 are butt-jointed to form a single-cover manhole cover outer frame, and the manhole cover is fixed on the single-cover manhole cover outer frame to form a single-cover manhole cover.
[0029] The two ends of the U-shaped frame 3 are respectively provided with a protrusion 10 and a recess 19. After the protrusion 10 and the recess 19 between the U-shaped frame 3 are plugged in, they are connected by connecting bolts 4 and waterproof glue is filled at the joints to further improve the waterproof performance of the outer frame. Example
[0030] The two U-shaped frames 3 are connected on both sides by multiple straight frames 2 to form a multi-cover manhole cover outer frame, and the support blocks 20 are fixed at the connection of the opposite straight frames 2. Multiple manhole covers are fixed on the multi-cover manhole cover outer frame and the support blocks 20 to form a multi-cover manhole cover.
[0031] A support rail 20 limiting groove 9 is provided in the middle of the inner rib 12 of the straight frame 2. The support rail 20 includes a bottom surface 17 and a convex ridge 18 provided above the central axis of the bottom surface 17. End surfaces are provided at both ends of the bottom surface 17 to match the limiting groove 9 of the support rail 20. The end surfaces are limitedly connected to the limiting groove 9 of the support rail 20. The cooperation between the bottom surface 17 and the limiting groove 9 of the support rail 20 makes the connection more stable, precise, and highly sealed. The two are fixed by screws or bolts.
[0032] A groove 15 is provided in the middle of the straight frame 2, and a ridge 16 is provided at the end of the support rail 20. The ridge 16 is snapped into the groove 15, and the secondary precise positioning makes the connection more accurate.
[0033] The two ends of the straight frame 2 are respectively provided with a protrusion 10 and a recess 19, and the two ends of the U-shaped frame 3 are also respectively provided with a protrusion 10 and a recess 19. The protrusion 10 and the recess 19 are plug-in connected, and the mortise and tenon structure connection is more firm, not easy to loosen, and has better waterproof performance.
[0034] After the protrusions 10 and recesses 19 between the U-shaped frame 3 and the straight frame 2 or between the straight frames 2 are plugged in, they are connected by connecting bolts 4 and waterproof glue is filled at the joints to further improve the waterproof performance of the outer frame.
[0035] Note that the above are merely preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions are readily apparent to those skilled in the art without departing from the scope of the present invention. Therefore, while the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include other equivalent embodiments without departing from the spirit of the present invention. The scope of the present invention is determined by the appended claims.
Claims
1. A multifunctional assembled waterproof manhole cover, comprising an outer frame and a manhole cover, characterized in that: The outer frame includes a straight frame and a U-shaped frame. The two U-shaped frames are connected to form a single-cover manhole cover outer frame, and the manhole cover is fixed on the single-cover manhole cover outer frame to form a single-cover manhole cover; or, the two U-shaped frames are connected on both sides by multiple straight frames to form a multi-cover manhole cover outer frame, and support blocks are fixed at the connection of the opposite straight frames, and multiple manhole covers are fixed on the multi-cover manhole cover outer frame and the support blocks to form a multi-cover manhole cover.
2. A multifunctional assembled waterproof manhole cover according to claim 1, characterized in that: The straight frame and the U-shaped frame are both provided with inner retaining edges.
3. A multifunctional assembled waterproof manhole cover according to claim 2, characterized in that: A support block limiting groove is provided in the middle of the inner retaining edge of the straight frame. The support block includes a bottom surface and a convex ridge arranged above the central axis of the bottom surface. End surfaces adapted to the support block limiting groove are provided at both ends of the bottom surface, and the end surfaces are limitedly connected to the support block limiting groove.
4. The multifunctional assembled waterproof manhole cover according to claim 1, characterized in that: A groove is provided in the middle of the straight frame, and a convex strip is provided at the end of the supporting rail, and the convex strip is clamped in the groove.
5. The multifunctional assembled waterproof manhole cover according to claim 1, characterized in that: The two ends of the straight frame are respectively provided with a protrusion and a notch, and the two ends of the U-shaped frame are also respectively provided with a protrusion and a notch, and the protrusion and the notch are plug-connected.
6. The multifunctional assembled waterproof manhole cover according to claim 1, characterized in that: The straight frame and the U-shaped frame are both provided with outer ribs.
7. The multifunctional assembled waterproof manhole cover according to claim 6, characterized in that: The outer rib is provided with reinforcing ribs.
8. The multifunctional assembled waterproof manhole cover according to claim 5, characterized in that: After the protrusions and recesses between the U-shaped frame and the straight frame or between the straight frames are plugged in, they are connected by connecting bolts, and waterproof glue is filled at the joints.
9. The multifunctional assembled waterproof manhole cover according to claim 1, characterized in that: The manhole cover includes a top cover and a bottom cover, and the top cover and the bottom cover are connected by fixing bolts and nuts, and a gasket is provided between the nuts and the bottom cover.
10. The multifunctional assembled waterproof manhole cover according to claim 1, characterized in that: A sealing ring is provided under the well cover.
Citation Information
Patent Citations
Support structure suitable for large-size well lid
CN219973286U