Finalized road circular rainwater well lid finished product protection device and construction method

By using the sloping funnel and linkage components of the standardized rainwater well cover protective device, the problem of rainwater well covers being easily damaged during construction has been solved, enabling rapid installation and disassembly, and improving construction efficiency and safety.

CN122013874APending Publication Date: 2026-05-12CHINA CONSTR THIRD ENG BUREAU GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA CONSTR THIRD ENG BUREAU GRP CO LTD
Filing Date
2025-12-18
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

In the existing technology, rainwater well covers are easily damaged by heavy vehicles during road construction, and the existing cement mortar protection method is inefficient, difficult to remove, and has unstable protection effect.

Method used

The device adopts a standardized protective device for circular rainwater well covers, including a sloping funnel, a sealing cover, a locking assembly, and a linkage assembly. It can be quickly installed and disassembled by hoisting and rotating the locking assembly. The height of the screw rod can be adjusted by using a drive gear and a linkage column to adapt to uneven road surfaces.

Benefits of technology

It enables rapid installation and removal of rainwater well covers, provides stable and effective protection, improves construction efficiency, quality and safety, and reduces construction costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the technical field of road engineering construction, and particularly relates to a shaped road circular rainwater well lid finished product protection device and a construction method. An adjusting hole is formed in the top of the slope funnel, a sealing cover is arranged on the inner wall of the adjusting hole, a plurality of sets of hinge blocks are further rotationally connected between the outer wall of the sealing cover and the inner wall of the adjusting hole, and a linkage assembly synchronously drives a plurality of sets of six-edge sleeves to rotate by rotating a locking assembly; the height of the inner threaded cylinder and the screw rod is adjusted in the rotating process, the slope funnel is used for synchronously adjusting the positions of the slope funnel, the sealing cover and the hinge block in multiple directions, the outer edge of the slope skirt of the slope funnel is in contact transition with the road surface, the rapid mounting and dismounting capacity is achieved, repeated recycling can be achieved, stable and effective protection is provided, and the service life of the slope funnel is prolonged. And the efficiency, quality, safety, economy and environmental protection of rainwater well lid finished product protection in road construction are remarkably improved.
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Description

Technical Field

[0001] This invention belongs to the field of road engineering construction technology, and specifically relates to a standardized protective device and construction method for circular rainwater well covers. Background Technology

[0002] During road construction or maintenance, the installation of underground facilities such as the roadbed, base course, and storm drains is usually completed first, followed by the laying of the asphalt surface layer. Before the asphalt surface layer is laid, various construction vehicles (such as transport vehicles, pavers, and rollers) need to drive and operate on the completed base or subbase course. At this time, the installed storm drain covers are usually higher than the surface of the base course. Without effective protection, they are easily damaged, deformed, or displaced by heavy vehicles, and may even damage the underlying manhole structure.

[0003] The current standard practice (cement mortar enclosure) involves using cement mortar to create a protective ring (slope) with a certain slope between the manhole cover and the road base. After the cement mortar has hardened to a certain strength, the tires of construction vehicles can drive along this mortar slope, passing over the manhole cover area, thus avoiding directly running over the manhole cover.

[0004] The existing cement mortar enclosure method has the following main disadvantages: Low construction efficiency and high dependence: On-site mixing and application of mortar is cumbersome and requires waiting for it to reach sufficient strength, which seriously restricts the continuity of subsequent processes. Demolition work is difficult and carries the risk of secondary damage: the hard mortar protective ring must be forcibly removed before asphalt is laid; The protective effect is unstable and difficult to standardize: the mortar strength and slope shape are difficult to control precisely, and the protection often fails due to insufficient strength or stress concentration, and the manhole cover is still damaged.

[0005] In summary, the existing technology needs a method that can be quickly installed and disassembled, can be reused repeatedly, provides stable and effective protection, and significantly improves the efficiency, quality, safety, and economic and environmental benefits of protecting finished rainwater manhole covers during road construction. Summary of the Invention

[0006] To address the aforementioned problems, this invention provides a standardized protective device for circular road drainage well covers, comprising a sloping funnel; an adjustment hole is provided at the top of the sloping funnel, and a sealing cover is provided on the inner wall of the adjustment hole; a plurality of hinge blocks are rotatably connected between the outer wall of the sealing cover and the inner wall of the adjustment hole; a lead screw is fixedly connected to the bottom of each of the hinge blocks, and an internally threaded cylinder is threaded to the bottom end of the lead screw; a hexagonal sleeve is fixedly connected to the bottom end of the internally threaded cylinder; a locking assembly is rotatably connected at the center of the central axis of the sealing cover; a linkage assembly is drivenly connected to the bottom of the locking assembly, and the linkage assembly is sleeved on the plurality of hexagonal sleeves.

[0007] Furthermore, the outer wall of the sloping funnel is adhered with several sets of reflective stickers, the bottom of the sloping funnel is attached to the road surface, and a drain pipe is embedded in the road surface. A rainwater well cover is provided at the top of the drain pipe. A rubber ring is provided between the outer wall of the sealing cover and the inner wall of the adjustment hole. The hexagonal sleeve is set at the same level as the bottom of the sloping funnel and is attached to the top of the road surface.

[0008] Furthermore, the locking assembly includes a countersunk hexagonal head; the countersunk hexagonal head is rotatably connected to the sealing cover, and a storage tube is fixedly connected to the bottom end of the countersunk hexagonal head; both the storage tube and the bottom end of the countersunk hexagonal head are provided with internal threaded holes.

[0009] Furthermore, the inner wall of the storage tube is slidably connected to a linkage column, and the top of the linkage column is rotatably connected to a bolt head. The bolt head is threadedly connected to an internal threaded hole, and the top of the bolt head is provided with a first internal hexagonal hole.

[0010] Furthermore, the inner wall of the storage tube is provided with a compression spring, and the compression spring is abutting between the inner wall of the storage tube and the end of the linkage column. Hollow sliding cavities are opened on both side walls of the storage tube, and both sets of hollow sliding cavities are interconnected with the storage tube. Limiting blocks are slidably attached to the inner walls of both sets of hollow sliding cavities, and one end of each set of limiting blocks is fixedly connected to the outer wall of the linkage column.

[0011] Furthermore, the linkage component includes an internal gear ring; a driving gear is disposed inside the internal gear ring, and several sets of driven gears are meshed between the driving gear and the internal gear ring.

[0012] Furthermore, each of the several sets of driven gears has a second internal hexagonal hole in its middle part. The second internal hexagonal hole is sleeved on the outside of the hexagonal sleeve and is also slidably connected to the outer wall of the internally threaded cylinder.

[0013] Furthermore, both the upper and lower sides of the internal gear ring are fixedly connected with limiting rings for positioning the driven gear.

[0014] Furthermore, the internal gear ring, the driving gear, and several sets of driven gears are all connected by helical gears, and the center of the top central axis of the driving gear is fixedly connected to the bottom end of the linkage column.

[0015] A construction method for a standardized protective device for circular road storm drain covers includes the following steps. The construction site is kept clean by cleaning the storm drain covers around the road surface, ensuring it is in a clean state before construction begins. The sloping funnel and sealing cover were moved to the top of the rainwater well cover by hoisting. Then, by rotating the locking assembly, the linkage assembly synchronously drives several sets of hexagonal sleeves to rotate, so that the internal threaded cylinder can be adjusted in height with the lead screw during the rotation.

[0016] The beneficial effects of this invention are: 1. By cleaning the storm drain covers around the road surface, the construction site is in a clean state before construction. The sloping funnel and sealing cover are moved to the top of the storm drain cover by hoisting. Then, by rotating the locking assembly, the linkage assembly drives several sets of hexagonal sleeves to rotate synchronously. During the rotation, the height of the internal threaded cylinder and the screw is adjusted. This is used to adjust the position between the sloping funnel, sealing cover and hinge block in multiple directions synchronously, so that the outer edge of the sloping skirt of the sloping funnel makes contact transition with the road surface. It has the ability to be quickly installed and disassembled, can be reused, provides stable and effective protection, and significantly improves the efficiency, quality, safety and economic and environmental benefits of storm drain cover protection in road construction.

[0017] 2. During the synchronous upward movement of the drive gear and linkage column, the compression spring is first squeezed. When the bolt head approaches the internal thread hole, the tool that matches the first internal hexagonal hole is inserted into the internal thread hole. During the rotation, the bolt head is driven to rotate in the internal thread hole, so that several sets of driven gears and hexagonal sleeves are in a state of separation. This makes it easy for the operator to rotate several sets of internal threaded sleeves individually, so that the bottom ends of several sets of internal threaded sleeves form different heights to meet the needs of uneven road surfaces.

[0018] 3. After the bolt head separates from the internal threaded hole, the tension of the compression spring pushes the linkage column and the drive gear down, so that the second internal hexagonal holes on several sets of driven gears are all fitted onto the hexagonal sleeve. Using a tool that conforms to the internal hexagonal countersunk head, the internal hexagonal countersunk head, the storage cylinder, the linkage column, and the drive gear rotate synchronously. This is used to drive several sets of driven gears and the internal threaded cylinder to rotate, and to synchronously adjust the position of several sets of lead screws in the internal threaded cylinder. This is used to improve the efficiency of height adjustment when placing a ramp funnel on a flat road surface with multiple points of support at the bottom.

[0019] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the structure of the finished rainwater well cover protection device according to an embodiment of the present invention is shown. Figure 1 ; Figure 2 A schematic diagram of the structure of the finished rainwater well cover protection device according to an embodiment of the present invention is shown. Figure 2 ; Figure 3 A schematic diagram of the structure of the finished rainwater well cover protection device according to an embodiment of the present invention is shown. Figure 3 ; Figure 4 A schematic diagram of the locking assembly according to an embodiment of the present invention is shown; Figure 5 A schematic diagram of the linkage component according to an embodiment of the present invention is shown.

[0022] In the diagram: 1. Road surface; 2. Sloping funnel; 3. Reflective tape; 4. Drain pipe; 5. Rainwater well cover; 6. Adjustment hole; 7. Sealing cap; 8. Rubber ring; 9. Hinge block; 10. Lead screw; 11. Internal threaded cylinder; 12. Hexagonal sleeve; 13. Locking assembly; 131. Socket head; 132. Storage cylinder; 133. Internal threaded hole; 134. Linkage column; 135. Bolt head; 136. Compression spring; 137. Hollow slide cavity; 138. Limiting block; 14. Linkage assembly; 141. Internal gear ring; 142. Driving gear; 143. Driven gear; 144. Second socket head hole; 145. Limiting ring. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] This invention provides a protective device for standardized circular storm drain covers, including a sloping funnel 2; for example, such as... Figure 1 , Figure 2 and Figure 3 As shown.

[0025] The outer wall of the sloping funnel 2 is adhered with several sets of reflective stickers 3. The bottom of the sloping funnel 2 is attached to a road surface 1, and a drain pipe 4 is embedded in the road surface 1. A rainwater well cover 5 is provided at the top of the drain pipe 4. An adjustment hole 6 is provided at the top of the sloping funnel 2, and a sealing cover 7 is provided on the inner wall of the adjustment hole 6. A rubber ring 8 is provided between the outer wall of the sealing cover 7 and the inner wall of the adjustment hole 6. Several sets of hinge blocks 9 are also rotatably connected between the outer wall of the sealing cover 7 and the inner wall of the adjustment hole 6. At the bottom of the rubber ring 8, a screw rod 10 is fixedly connected to the bottom of several sets of hinge blocks 9. The bottom end of the screw rod 10 is threadedly connected to an internal threaded cylinder 11. The bottom end of the internal threaded cylinder 11 is fixedly connected to a hexagonal sleeve 12. The hexagonal sleeve 12 is set at the same level as the bottom of the inclined funnel 2 and is fitted to the top of the road surface 1. A locking assembly 13 is rotatably connected to the center of the central axis of the sealing cover 7. The bottom of the locking assembly 13 is drivenly connected to a linkage assembly 14, and the linkage assembly 14 is sleeved on several sets of hexagonal sleeves 12.

[0026] Furthermore, the inclined funnel 2 is a wear-resistant steel plate in the shape of annular slope, and the thickness of the inclined funnel 2 is 1.5-2.5 mm.

[0027] Specifically, the rainwater well covers 5 around the road surface 1 are cleaned to ensure the construction site is in a clean state before construction. The sloping funnel 2 and the sealing cover 7 are moved to the top of the rainwater well cover 5 by hoisting. Then, the linkage component 14 is driven by the rotating locking component 13 to rotate several sets of hexagonal sleeves 12 synchronously. During the rotation, the internal threaded cylinder 11 and the screw 10 are adjusted in height. This is used to adjust the position between the sloping funnel 2, the sealing cover 7 and the hinge block 9 in multiple directions synchronously, so that the outer edge of the sloping skirt of the sloping funnel 2 makes contact transition with the road surface 1.

[0028] The locking assembly 13 includes a countersunk hexagon head 131; for example, such as Figure 4 As shown.

[0029] The internal hexagon countersunk head 131 is rotatably connected to the sealing cover 7. A storage cylinder 132 is fixedly connected to the bottom end of the internal hexagon countersunk head 131. Internal threaded holes 133 are provided between the storage cylinder 132 and the bottom end of the internal hexagon countersunk head 131. A linkage post 134 is slidably fitted to the inner wall of the storage cylinder 132. A bolt head 135 is rotatably connected to the top end of the linkage post 134. The bolt head 135 is threadedly connected to the internal threaded hole 133, and a first internal hexagon is provided at the top end of the bolt head 135. The storage cylinder 132 has a compression spring 136 on its inner wall, which is connected to the inner wall of the storage cylinder 132 and the end of the linkage column 134. Hollow sliding cavities 137 are provided on both side walls of the storage cylinder 132, and both sets of hollow sliding cavities 137 are interconnected with the storage cylinder 132. Limiting blocks 138 are slidably attached to the inner walls of both sets of hollow sliding cavities 137, and one end of each set of limiting blocks 138 is fixedly connected to the outer wall of the linkage column 134.

[0030] The linkage component 14 includes an internal gear ring 141; for example, such as Figure 5 As shown.

[0031] The internal gear ring 141 is provided with a driving gear 142. The driving gear 142 and the internal gear ring 141 are meshed with several sets of driven gears 143. Each set of driven gears 143 has a second internal hexagonal hole 144 in the middle. The second internal hexagonal hole 144 is sleeved on the outside of the hexagonal sleeve 12 and is also slidably connected to the outer wall of the internal threaded cylinder 11. The upper and lower sides of the internal gear ring 141 are fixedly connected with limiting rings 145 for positioning the driven gears 143. The internal gear ring 141, the driving gear 142 and the several sets of driven gears 143 are all connected by helical gears. The center of the top central axis of the driving gear 142 is fixedly connected to the bottom end of the linkage column 134.

[0032] Specifically, during the synchronous upward movement of the drive gear 142 and the linkage column 134, the compression spring 136 is first squeezed. When the bolt head 135 approaches the internal thread hole 133, the tool that conforms to the first internal hexagonal hole is inserted into the internal thread hole 133. During the rotation, the bolt head 135 is driven to rotate in the internal thread hole 133, so that several sets of driven gears 143 and hexagonal sleeves 12 are in a state of separation from each other. This makes it easy for the operator to rotate several sets of internal thread cylinders 11 individually, so that the bottom ends of several sets of internal thread cylinders 11 form different heights to meet the uneven road surface 1, so that the placed ramp funnel 2 is in a horizontal state. After the bolt head 135 separates from the internal threaded hole 133, the tension of the compression spring 136 pushes the linkage column 134 and the drive gear 142 to fall, so that the second internal hexagonal holes 144 on several sets of driven gears 143 are all fitted onto the hexagonal sleeve 12. The tool that conforms to the internal hexagonal countersunk head 131 is used to rotate, so that the internal hexagonal countersunk head 131, the storage cylinder 132, the linkage column 134 and the drive gear 142 rotate synchronously. During the process of driving several sets of driven gears 143 and internal threaded cylinder 11 to rotate, the position of several sets of lead screws 10 in internal threaded cylinder 11 is adjusted synchronously, which is used to improve the efficiency of height adjustment when placing the inclined funnel 2 at multiple points of bottom support in the level road surface 1.

[0033] The working principle of the standardized circular storm drain cover protection device proposed in this invention is as follows: During the synchronous upward movement of the drive gear 142 and the linkage column 134, the compression spring 136 is first squeezed. When the bolt head 135 approaches the internal thread hole 133, the tool that conforms to the first internal hexagonal hole is inserted into the internal thread hole 133. During the rotation, the bolt head 135 is driven to rotate in the internal thread hole 133, so that several sets of driven gears 143 and hexagonal sleeves 12 are in a state of separation from each other. This makes it easy for the operator to rotate several sets of internal thread cylinders 11 individually, so that the bottom ends of several sets of internal thread cylinders 11 form different heights to meet the uneven road surface 1, so that the placed ramp funnel 2 is in a horizontal state. After the bolt head 135 is separated from the internal threaded hole 133, the tension of the compression spring 136 pushes the linkage column 134 and the drive gear 142 to fall, so that the second internal hexagonal holes 144 on several sets of driven gears 143 are all fitted onto the hexagonal sleeve 12. The tool that conforms to the internal hexagonal countersunk head 131 is used to rotate, so that the internal hexagonal countersunk head 131, the storage cylinder 132, the linkage column 134 and the drive gear 142 rotate synchronously. During the process of driving several sets of driven gears 143 and internal threaded cylinder 11 to rotate, the position of several sets of lead screws 10 in internal threaded cylinder 11 is adjusted synchronously. This is used to improve the efficiency of height adjustment when placing the inclined funnel 2 in the level road surface 1 with multiple points of bottom support.

[0034] Based on the aforementioned standardized protective device for circular road storm drain covers, this invention also provides a construction method for the standardized protective device for circular road storm drain covers, comprising the following steps. The construction site is kept clean by cleaning the storm drain covers around the road surface, ensuring it is in a clean state before construction begins. The sloping funnel and sealing cover were moved to the top of the rainwater well cover by hoisting. Then, by rotating the locking assembly, the linkage assembly synchronously drives several sets of hexagonal sleeves to rotate, so that the internal threaded cylinder can be adjusted in height with the lead screw during the rotation.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A protective device for a standardized circular storm drain cover, characterized in that: The device includes a sloping funnel (2); the top of the sloping funnel (2) is provided with an adjustment hole (6), and the inner wall of the adjustment hole (6) is provided with a sealing cover (7). The outer wall of the sealing cover (7) and the inner wall of the adjustment hole (6) are rotatably connected to several sets of hinge blocks (9). The bottom of each set of hinge blocks (9) is fixedly connected to a lead screw (10), and the bottom end of the lead screw (10) is threadedly connected to an internal thread cylinder (11). The bottom end of the internal thread cylinder (11) is fixedly connected to a hexagonal sleeve (12). The center of the central axis of the sealing cover (7) is rotatably connected to a locking assembly (13). The bottom of the locking assembly (13) is drivenly connected to a linkage assembly (14), and the linkage assembly (14) is sleeved on several sets of hexagonal sleeves (12).

2. The standardized circular storm drain cover protective device according to claim 1, characterized in that: The outer wall of the sloping funnel (2) is adhered with several sets of reflective stickers (3). The bottom of the sloping funnel (2) is attached to the road surface (1), and a drain pipe (4) is embedded in the road surface (1). A rainwater well cover (5) is provided at the top of the drain pipe (4). A rubber ring (8) is provided between the outer wall of the sealing cover (7) and the inner wall of the adjustment hole (6). The hexagonal sleeve (12) is set at the same level as the bottom of the sloping funnel (2) and is attached to the top of the road surface (1).

3. The standardized circular storm drain cover protective device according to claim 1, characterized in that: The locking assembly (13) includes an internal hexagon countersunk head (131); the internal hexagon countersunk head (131) is rotatably connected to the sealing cover (7), and a storage tube (132) is fixedly connected to the bottom end of the internal hexagon countersunk head (131). An internal threaded hole (133) is provided between the storage tube (132) and the bottom end of the internal hexagon countersunk head (131).

4. The standardized circular storm drain cover protective device according to claim 3, characterized in that: The inner wall of the storage tube (132) is slidably connected to a linkage column (134), and the top of the linkage column (134) is rotatably connected to a bolt head (135). The bolt head (135) is threadedly connected to an internal threaded hole (133), and the top of the bolt head (135) is provided with a first internal hexagonal hole.

5. The standardized circular storm drain cover protective device according to claim 4, characterized in that: The inner wall of the storage cylinder (132) is provided with a compression spring (136), and the compression spring (136) is connected to the inner wall of the storage cylinder (132) and the end of the linkage column (134). Hollow sliding cavities (137) are provided on both sides of the storage cylinder (132), and both sets of hollow sliding cavities (137) are connected to the storage cylinder (132). The inner walls of both sets of hollow sliding cavities (137) are slidably attached to limit blocks (138), and one end of both sets of limit blocks (138) is fixedly connected to the outer wall of the linkage column (134).

6. The standardized circular storm drain cover protective device according to claim 1, characterized in that: The linkage component (14) includes an internal gear ring (141); a drive gear (142) is provided inside the internal gear ring (141), and a number of driven gears (143) are meshed between the drive gear (142) and the internal gear ring (141).

7. The standardized circular storm drain cover protective device according to claim 6, characterized in that: Each of the several sets of driven gears (143) has a second internal hexagonal hole (144) in the middle. The second internal hexagonal hole (144) is sleeved on the outside of the hexagonal sleeve (12) and is also slidably connected to the outer wall of the internal threaded cylinder (11).

8. The standardized circular storm drain cover protective device according to claim 7, characterized in that: The upper and lower sides of the internal gear ring (141) are fixedly connected with limiting rings (145) for positioning the driven gear (143).

9. The standardized circular storm drain cover protective device according to claim 8, characterized in that: The internal gear ring (141), the driving gear (142) and several sets of driven gears (143) are all connected by helical gears, and the center of the top central axis of the driving gear (142) is fixedly connected to the bottom end of the linkage column (134).

10. A construction method for a prefabricated protective device for a standardized circular storm drain cover according to any one of claims 1-9, characterized in that: The construction method includes: The construction site is kept clean by cleaning the storm drain covers around the road surface, ensuring it is in a pre-construction clean state. The sloping funnel and sealing cover were moved to the top of the rainwater well cover by hoisting. Then, by rotating the locking assembly, the linkage assembly synchronously drives several sets of hexagonal sleeves to rotate, so that the internal threaded cylinder can be adjusted in height with the lead screw during the rotation.