Permanent-temporary combined road well lid and construction method

Abstract

The application discloses a kind of permanent and temporary combination road well lid and construction method, belong to road well lid field, including steel cylinder, the cavity is equipped in the steel cylinder, the sliding pipe is fixedly connected on the steel cylinder outer wall, accommodating groove is opened in the top of the sliding pipe, sliding slot is opened in the sliding pipe inner side wall, clamping groove is opened in the bottom of the sliding pipe, guide rod is slidably connected in the sliding pipe inner side wall, well lid main body is fixedly connected in the top of the guide rod, lifting spring is fixedly connected in the bottom of the well lid main body, the lifting spring is wound in the outside of guide rod, clamping block is fixedly connected in the bottom of the guide rod, the inner side wall of the clamping block outer side wall and sliding slot is in accord with the inner side wall.This application is directly formed and constructed in place when well lid is in early construction, greatly improves construction efficiency, while it is convenient to promote height when asphalt surface layer is constructed in later period, ensure flush with asphalt surface layer, reduce the risk of well lid damage and displacement caused by external factors such as large car rolling.

Description

Technical Field

[0001] This invention belongs to the field of road manhole covers, specifically relating to a permanent and temporary road manhole cover and its construction method. Background Technology

[0002] The concept of "permanent-temporary combined roads" refers to the use of combined permanent and temporary road infrastructure during municipal road construction. This technology integrates some permanent road facilities with temporary ones, allowing for simultaneous temporary use during construction and permanent use later, all within a single phase of construction. This technique aims to conserve building resources, avoid construction waste from the demolition of temporary works, accelerate construction progress, and improve economic, environmental, and social benefits. Currently, the construction organization concept of permanent-temporary combined roads is widely promoted and implemented. However, this design concept also faces a series of technical challenges in practical operation, including the issue of easily damaged manhole covers.

[0003] Firstly, the concept of combining temporary and permanent roads lies in constructing temporary access roads in the early stages according to the standards of formal roads, using formal road drawings for construction. This requires the simultaneous pre-laying of corresponding rainwater, sewage, water supply, and fire protection pipelines. Later, only damaged areas need repair, followed by the surface layer construction. This project management approach saves costs, shortens the construction period, and plays a significant role in standardized on-site construction. However, significant problems also exist. The main issue is that in the white (concrete) plus black (asphalt) road design, rainwater and sewage pipe manholes are located in the middle of the road, making manhole safety and road access difficult. Generally, on-site protection of rainwater and sewage manholes involves placing manhole covers (100mm thick) on top of the manhole after the concrete structure layer is completed, and later treating the area around the manhole cover with mortar, or simply covering it with a steel plate (δ=16mm) without a cover.

[0004] However, due to the special conditions at construction sites, concrete mixer trucks, pump trucks, and large material transport vehicles often enter the construction site, which causes manhole covers to be crushed or displaced. It is common for construction waste to fall into the rainwater and sewage wells, affecting their later use. Furthermore, the laying of steel plate roads makes cleaning difficult. This not only affects the aesthetics of the roads but may also pose a threat to the safety of pedestrians and vehicles. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a permanent and temporary road manhole cover and construction method to solve the problems mentioned in the background art or achieve better technical effects.

[0006] To solve the above-mentioned technical problems, the inventors, through practice and summarization, derived the technical solution of this invention. This invention discloses a permanent and temporary road manhole cover, comprising a steel cylinder with a cavity inside. A sliding tube is fixedly connected to the outer wall of the steel cylinder. A receiving groove is formed at the top of the sliding tube, a sliding groove is formed on the inner side wall of the sliding tube, and a locking groove is formed at the bottom of the sliding tube. A guide rod is slidably connected to the inner side wall of the sliding tube. A manhole cover body is fixedly connected to the top of the guide rod, and a lifting spring is fixedly connected to the bottom of the manhole cover body. The lifting spring is wound around the outside of the guide rod, and a locking block is fixedly connected to the bottom of the guide rod. The outer side wall of the locking block fits into the inner side wall of the sliding groove.

[0007] Preferably, the inner wall of the steel cylinder is provided with an installation groove, and a filter basket is detachably connected to the steel cylinder through the installation groove. By setting the installation groove and the filter basket, it is convenient to filter leaves, concrete blocks, impurities, etc., and avoid clogging of the well.

[0008] Preferably, a hexagonal knob is fixedly connected to the top of the guide rod. By setting the hexagonal knob, it is easy to rotate the guide rod and improve the efficiency of the staff.

[0009] Preferably, the outer wall of the steel cylinder is fixedly connected with reinforcing ribs. By setting reinforcing ribs, the strength of the steel cylinder can be improved and collapse can be avoided during use.

[0010] Preferably, a filter plate is fixedly connected to the top of the steel cylinder. By setting the filter plate, it is easy to protect the reinforcing ribs and prevent impurities from entering the interior of the reinforcing ribs.

[0011] Preferably, a lifting hole is provided through the top of the manhole cover body, which facilitates the opening and closing of the manhole cover body by the staff.

[0012] This invention also discloses a construction method for a combined permanent and temporary road manhole cover. After the construction of the storm and sewage wells is completed and the crushed stone layer is laid, and the base concrete is to be poured, the manhole cover is installed on top of the crushed stone layer and poured simultaneously with the concrete foundation. When a second layer of asphalt is required, the worker rotates the hexagonal knob at the top of the guide rod. Since the hexagonal knob is fixedly connected to the guide rod, the hexagonal knob drives the guide rod to rotate the locking block. When the locking block rotates to align with the sliding groove, the lifting spring itself lifts the guide rod towards the top of the steel cylinder, simultaneously causing the main body of the manhole cover to rise synchronously.

[0013] Furthermore, workers pour cement grout into the receiving tank and cavity to achieve the required strength; during the second layer of asphalt laying, the elevation of the manhole cover will not deviate, and after laying, the height of the manhole cover body and the asphalt will be equal, thereby improving construction efficiency.

[0014] Compared with the prior art, the present invention can achieve the following technical effects:

[0015] This combined permanent and temporary road manhole cover and construction method, through the coordinated use of sliding pipes, chutes, slots, receiving grooves, guide rods, the manhole cover body, lifting springs, locking blocks, and hexagonal knobs, facilitates the direct molding and installation of the manhole cover during the initial construction of temporary concrete roads. This greatly improves construction efficiency, reduces the cost of later maintenance and replacement, and allows for easy lifting of the manhole cover by 100mm during the later construction of asphalt pavement, ensuring it is flush with the asphalt surface. This enhances the road's aesthetics, improves driving comfort, increases the stability of the manhole cover, and reduces damage and displacement caused by external forces such as heavy vehicles, thus lowering safety risks.

[0016] The combined use of steel cylinders, installation slots, filter baskets, and filter plates facilitates the protection of the interior of the steel cylinder and cavity, preventing impurities such as roadside leaves, concrete blocks, and construction waste from entering the interior of the steel cylinder and cavity during construction, thereby avoiding blockage of the steel cylinder and cavity. Attached Figure Description

[0017] 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, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the sliding tube and related parts of the present invention;

[0020] Figure 3 This is a schematic diagram of the guide rod and related parts of the present invention;

[0021] Figure 4 This is a schematic diagram of the filter basket and related parts of the present invention.

[0022] In the diagram: 1. Steel cylinder; 2. Cavity; 3. Sliding pipe; 4. Slide groove; 5. Slot; 6. Receiving groove; 7. Guide rod; 8. Manhole cover body; 9. Lifting spring; 10. Locking block; 11. Hexagonal knob; 12. Installation groove; 13. Filter basket; 14. Filter plate; 15. Reinforcing rib; 16. Lifting hole. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0024] The application principle of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] See Figure 1-3 A temporary / permanent manhole cover for roads includes a steel cylinder 1, which is 250mm long. The outer wall of the steel cylinder 1 has an internal cavity 2. The steel cylinder 1 is made of cast iron, which has high strength. A sliding tube 3 is fixedly connected to the outer wall of the steel cylinder 1, and the sliding tube 3 is located within the cavity 2. A receiving groove 6 is formed at the top of the sliding tube 3, located in the upper half of the sliding tube 3. A sliding groove 4 is formed on the inner wall of the sliding tube 3, located in the lower half of the sliding tube 3. The sliding groove 4 communicates with the receiving groove 6. The bottom of the moving tube 3 is provided with a slot 5, and the inner wall of the sliding tube 3 is slidably connected with a guide rod 7. The guide rod 7 is 200mm long and is located inside the receiving groove 6. The top of the guide rod 7 is fixedly connected with a manhole cover body 8, and the bottom of the manhole cover body 8 is fixedly connected with a lifting spring 9. The lifting spring 9 is wrapped around the outside of the guide rod 7, and the bottom of the guide rod 7 is fixedly connected with a locking block 10. The locking block 10 is located inside the slot 5, and the outer wall of the locking block 10 fits with the inner wall of the sliding groove 4.

[0026] After the construction of the storm and sewage wells is completed and the crushed stone layer is laid, the well cover is installed on top of the crushed stone layer and poured simultaneously with the concrete foundation. The thickness of the concrete road is generally 250mm. When the first 60mm layer of asphalt is laid, it is not necessary to raise the well cover. After the laying is completed, the asphalt on the top of the well cover is cleaned manually. Before laying the second 40mm layer of asphalt, the workers can rotate the guide rod 7, which drives the locking block 10 to rotate. When the position of the locking block 10 is aligned with the sliding groove 4, the lifting spring 9 lifts the guide rod 7 towards the top of the steel cylinder 1 by 100mm, which simultaneously raises the well cover body 8. Furthermore, the workers can pour cement grout into the receiving groove 6 and the cavity 2 to achieve the required strength. During the laying of the second layer of asphalt, the elevation of the well cover will not deviate. After the laying is completed, the height of the well cover body 8 is equal to that of the asphalt, thereby improving the construction efficiency.

[0027] See Figure 4The inner wall of the steel cylinder 1 is provided with an installation groove 12. There are three installation grooves 12, which are arranged in a circular array along the inner wall of the steel cylinder 1. A filter basket 13 is detachably connected to the steel cylinder 1 through the three installation grooves 12. The inner wall of the filter basket 13 is provided with multiple water filtering holes, which facilitates the blocking of construction waste, leaves, concrete blocks and other waste, and prevents construction waste and other waste from entering the interior of the steel cylinder 1, thereby preventing the steel cylinder 1 from becoming clogged.

[0028] See Figure 1-2 A hexagonal knob 11 is fixedly connected to the top of the guide rod 7. The bottom of the hexagonal knob 11 fits against the top of the manhole cover body 8. When it is necessary to rotate the guide rod 7, the operator can use an external tool to fix the hexagonal knob 11, thereby using an external tool such as a wrench to rotate the guide rod 7, reducing the operator's strength consumption and avoiding hand injuries.

[0029] See Figure 4 The outer wall of the steel cylinder 1 is fixedly connected with a reinforcing rib 15, which is located inside the cavity 2. As the reinforcing rib 15 supports the inner and outer walls of the steel cylinder 1, it effectively improves the bearing capacity of the steel cylinder 1 and the cavity 2, thereby preventing collapse during the rolling of large tank trucks.

[0030] See Figure 4 A filter plate 14 is fixedly connected to the top of the steel cylinder 1. The filter plate 14 is located above the reinforcing rib 15, and multiple water filtering holes are opened through the top of the filter plate 14 to prevent debris from entering the space between the steel cylinder 1 and the cavity 2, thereby preventing construction waste, impurities, etc. from damaging the reinforcing rib 15 and thus improving the service life of the reinforcing rib 15.

[0031] See Figure 2 The top of the manhole cover body 8 is provided with a lifting hole 16. There are two lifting holes 16, which are symmetrically distributed about the central axis of the manhole cover body 8. The staff can use the two lifting holes 16 to control the opening and closing of the manhole cover body 8.

[0032] Principle: After the construction of the storm and sewage wells is completed and the crushed stone layer is laid, the well cover is installed on top of the crushed stone layer and poured simultaneously with the concrete foundation. When a second layer of asphalt is needed, the workers can rotate the hexagonal knob 11 at the top of the guide rod 7. Since the hexagonal knob 11 is fixedly connected to the guide rod 7, the hexagonal knob 11 drives the guide rod 7 to drive the locking block 10 to rotate. When the position of the locking block 10 is aligned with the slide 4, the guide rod 7 is lifted towards the top of the steel cylinder 1 by 100mm under the elastic force of the lifting spring 9. At the same time, the well cover body 8 is lifted synchronously. Furthermore, the workers can pour cement slurry into the receiving groove 6 and the cavity 2 to achieve the required strength. During the second layer of asphalt laying, the elevation of the well cover will not deviate. After the laying is completed, the height of the well cover body 8 is equal to that of the asphalt, thereby improving the construction efficiency.

[0033] The manhole cover proposed in this application, which combines permanent and temporary road use, can also be used in other road construction projects.

[0034] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A permanent and temporary road manhole cover, characterized in that: The device includes a steel cylinder with a cavity inside its outer wall. A sliding tube is fixedly connected to the outer wall of the steel cylinder. The top of the sliding tube has a receiving groove, the inner side wall of the sliding tube has a sliding groove, and the bottom of the sliding tube has a locking groove. A guide rod is slidably connected to the inner side wall of the sliding tube. A manhole cover body is fixedly connected to the top of the guide rod. A lifting spring is fixedly connected to the bottom of the manhole cover body. The lifting spring is wound around the outside of the guide rod. A locking block is fixedly connected to the bottom of the guide rod. The outer side wall of the locking block fits into the inner side wall of the sliding groove.

2. The permanent and temporary combined road manhole cover according to claim 1, characterized in that: The inner wall of the steel cylinder is provided with an installation groove, and a filter basket is detachably connected to the installation groove.

3. The permanent and temporary combined road manhole cover according to claim 2, characterized in that: A knob is fixedly connected to the top of the guide rod.

4. The permanent and temporary combined road manhole cover according to claim 2, characterized in that: The outer wall of the steel cylinder is fixedly connected with reinforcing ribs.

5. A temporary and permanent road manhole cover according to claim 2, characterized in that: A filter plate is fixedly connected to the top of the steel cylinder.

6. A permanent and temporary combined road manhole cover according to claim 2, characterized in that: A lifting hole is provided through the top of the main body of the manhole cover.

7. A construction method for a combined permanent and temporary road manhole cover, comprising the combined permanent and temporary road manhole cover as described in any one of claims 1-6, characterized in that: After the construction of the storm and sewage wells is completed and the crushed stone layer is laid, when it is time to pour the base concrete, the well cover is installed on top of the crushed stone layer and poured simultaneously with the concrete foundation. When a second layer of asphalt needs to be laid, the workers rotate the knob at the top of the guide rod. Since the knob is fixedly connected to the guide rod, the knob drives the guide rod to drive the locking block to rotate. When the locking block rotates and aligns with the slide groove, the lifting spring lifts the guide rod towards the top of the steel cylinder under its own elastic force, and at the same time, it drives the main body of the well cover to rise synchronously.

8. The construction method of a permanent and temporary road manhole cover according to claim 7, characterized in that: Workers poured cement grout into the receiving tank and cavity to achieve the required strength; during the second layer of asphalt laying, the elevation of the manhole cover was equal to the height of the asphalt, and after the laying was completed, the height of the manhole cover body was equal to that of the asphalt.

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