Manhole cover for permanent and temporary combined road and construction method

Abstract

The invention discloses a well lid for a permanent and temporary combined road and a construction method, and belongs to the field of road well lids.The well lid comprises a steel cylinder, a cavity is formed in the steel cylinder, a sliding pipe is fixedly connected to the outer wall of the steel cylinder, a containing groove is formed in the top of the sliding pipe, a sliding groove is formed in the inner side wall of the sliding pipe, and a clamping groove is formed in the bottom of the sliding pipe; the inner side wall of the sliding pipe is slidably connected with a guide rod, the top of the guide rod is fixedly connected with a well lid body, the bottom of the well lid body is fixedly connected with a lifting spring, the lifting spring is wound around the outer portion of the guide rod, the bottom of the guide rod is fixedly connected with a clamping block, and the outer side wall of the clamping block is matched with the inner side wall of the sliding groove. According to the construction method, the well lid can be directly formed and constructed in place during early-stage construction, the construction efficiency is greatly improved, meanwhile, the height can be conveniently increased during later-stage construction of the asphalt surface layer, it is guaranteed that the well lid is flush with the asphalt surface layer, and the risk that the well lid is damaged and shifted due to external force factors such as cart rolling is reduced.

Description

Technical Field

[0001] The invention belongs to the field of road manhole covers, and in particular relates to a permanent and temporary combined road manhole cover and a construction method. Background Art

[0002] Permanent-temporary combined roads refer to the use of permanent-temporary combined technology in the construction process of municipal road projects, combining some permanent road facilities with temporary road facilities, so that one-time construction can meet the dual needs of temporary use during construction and permanent use in the later period. This technology aims to save construction resources and avoid construction waste caused by the demolition of temporary projects, while speeding up the construction progress and improving economic, environmental and social benefits. At present, the construction organization concept of permanent-temporary combined roads has been widely promoted and adopted. However, this design concept also faces a series of technical challenges in actual operation, and faces the problem of easy damage to manhole covers.

[0003] First of all, the idea of ​​the permanent and temporary combined road is to build the temporary access road in the early stage according to the formal road, and use the formal road drawings for construction. It is required that the corresponding rainwater, sewage, water supply, fire protection and other pipelines be pre-buried in place at the same time. In the later stage, only the damaged parts need to be repaired and then the surface layer can be constructed. This project management method saves costs, shortens the construction period, and plays a good role in the standardization of the site. However, there are also significant problems. The main problem is that the rain and sewage pipe wells are located in the middle of the road during the design of the white (concrete) plus black (asphalt surface layer) road, and the safety protection of the wells and the road traffic become a difficulty; generally, the protection of the rain and sewage wells on site is to place the well cover (the thickness of the well cover is 100mm) on the top of the well after the construction of the concrete structure layer is completed. Later, the well cover is treated with mortar or directly covered with steel plates (δ=16mm) without placing the well cover.

[0004] However, due to the special conditions at the construction site, vehicles such as concrete tankers, pump trucks, and large material transport trucks often enter the construction site, which causes the manhole covers to be crushed, damaged, or shifted. It becomes normal for rainwater and sewage wells and construction waste to fall into the wells, affecting their later use. It is difficult to clean the paved steel plate roads, etc. This not only affects the aesthetics of the road, 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 combined road manhole cover and a construction method to solve the problems mentioned in the background technology or achieve better technical effects.

[0006] In order to solve the above technical problems, the inventors have obtained the technical solution of the present invention through practice and summary. The present invention discloses a manhole cover for permanent and temporary roads, including a steel cylinder, a cavity is arranged inside the steel cylinder, a sliding tube is fixedly connected to the outer wall of the steel cylinder, a receiving groove is provided at the top of the sliding tube, a sliding groove is provided at the inner wall of the sliding tube, a clamping groove is provided at the bottom of the sliding tube, a guide rod is slidably connected to the inner wall of the sliding tube, the top of the guide rod is fixedly connected to the manhole cover body, the bottom of the manhole cover body is fixedly connected to a lifting spring, the lifting spring is wound around the outside of the guide rod, the bottom of the guide rod is fixedly connected to a clamping block, and the outer wall of the clamping block fits with the inner wall of the sliding groove.

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

[0008] Preferably, a hexagonal knob is fixedly connected to the top of the guide rod. By providing the hexagonal knob, the guide rod can be easily rotated, thereby improving the efficiency of the staff.

[0009] Preferably, the outer side wall of the steel cylinder is fixedly connected with reinforcing ribs. By providing the reinforcing ribs, the strength of the steel cylinder can be improved to avoid collapse during use.

[0010] Preferably, a filter plate is fixedly connected to the top of the steel cylinder. By providing the filter plate, it is convenient 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, and the provision of the lifting hole facilitates the staff to open and close the manhole cover body.

[0012] The present invention also discloses a construction method for a manhole cover for a permanent and temporary combined road. After the construction of the rainwater and sewage well is completed and the gravel layer is laid, when the base concrete is prepared to be poured, the manhole cover is installed above the gravel layer and poured synchronously with the concrete foundation. When the second layer of asphalt needs to be laid later, the staff rotates the hexagonal knob on 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 drive the block to rotate. When the position of the block rotates and aligns with the slide groove, the guide rod is lifted toward the top of the steel cylinder under the action of the elastic force of the lifting spring itself, and the manhole cover body is driven to rise synchronously at the same time.

[0013] Furthermore, the staff will pour cement slurry into the interior of the receiving tank and the cavity to make it reach the required strength; during the laying of the second layer of asphalt, the elevation of the manhole cover will not deviate, and after the laying is completed, the height of the manhole cover body and the asphalt will be equal, thereby improving the efficiency of the construction.

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

[0015] The Yonglin combines road manhole covers and construction methods, through the coordinated use of sliding tubes, slide grooves, card slots, receiving grooves, guide rods, manhole cover bodies, lifting springs, card blocks, and hexagonal knobs, so that the manhole covers can be directly formed and constructed in place during the early stage of temporary concrete road construction, greatly improving construction efficiency and reducing the cost of later maintenance and replacement. At the same time, it is convenient to raise the height by 100mm during the later construction of the asphalt surface layer to ensure that it is flush with the asphalt surface layer, thereby enhancing the aesthetics of the road, improving driving comfort, and improving the stability of the manhole cover, reducing damage and displacement of the manhole cover caused by external forces such as large vehicles running over it, and reducing safety risks.

[0016] Through the coordinated use of the steel cylinder, mounting groove, filter basket and filter plate, it is convenient to protect the interior of the steel cylinder and the cavity, and prevent impurities such as roadside leaves, concrete blocks, and construction waste from entering the interior of the steel cylinder and the cavity during the construction process, thereby avoiding blockage of the steel cylinder and the cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

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

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

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

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

[0022] In the figure: 1. steel cylinder; 2. cavity; 3. sliding tube; 4. slide groove; 5. clamping groove; 6. receiving groove; 7. guide rod; 8. manhole cover body; 9. lifting spring; 10. clamping block; 11. hexagonal knob; 12. mounting groove; 13. filter basket; 14. filter plate; 15. reinforcing rib; 16. lifting hole. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0024] The application principle of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] See also Figure 1-3 A permanent and temporary combined road manhole cover comprises a steel cylinder 1, the length of the steel cylinder 1 is 250 mm, a cavity 2 is arranged inside the outer wall of the steel cylinder 1, the material of the steel cylinder 1 is cast iron, and the strength is high, a sliding tube 3 is fixedly connected to the outer wall of the steel cylinder 1, the sliding tube 3 is located in the cavity 2, a receiving groove 6 is opened on the top of the sliding tube 3, the receiving groove 6 is located in the upper half of the sliding tube 3, a sliding groove 4 is opened on the inner side wall of the sliding tube 3, the sliding groove 4 is located in the lower half of the sliding tube 3, the sliding groove 4 is connected with the receiving groove 6, and the sliding A card slot 5 is provided at the bottom of the moving tube 3, and a guide rod 7 is slidably connected to the inner wall of the sliding tube 3. The length of the guide rod 7 is 200 mm. The guide rod 7 is located inside the accommodating groove 6. The top of the guide rod 7 is fixedly connected to the manhole cover body 8. The bottom of the manhole cover body 8 is fixedly connected to a lifting spring 9. The lifting spring 9 is wound around the outside of the guide rod 7. The bottom of the guide rod 7 is fixedly connected to a card block 10. The card block 10 is located inside the card slot 5, and the outer wall of the card block 10 fits with the inner wall of the slide groove 4.

[0026] After the construction of the rainwater and sewage wells is completed, the gravel layer is laid, and when the base concrete is ready to be poured, the manhole cover is installed above the gravel layer and poured simultaneously with the concrete foundation. The thickness of the concrete road is generally 250mm; when the first layer of asphalt 60mm is laid later, there is no need to lift the manhole cover. After paving, the asphalt on the upper part of the manhole cover is cleaned manually; before laying the second layer of asphalt 40mm, the staff can rotate the guide rod 7, and the guide rod 7 drives the block 10 to rotate. When the position of the block 10 rotates and aligns with the slide groove 4, under the action of the elastic force of the lifting spring 9 itself, the guide rod 7 is lifted toward the top of the steel cylinder 1, and the lifting distance is 100mm, and the manhole cover body 8 is driven to rise synchronously. Further, the staff can pour cement slurry into the inside of the receiving groove 6 and the cavity 2 to make it reach the required strength; during the laying of the second layer of asphalt, the manhole cover elevation will not deviate. After the laying is completed, the height of the manhole cover body 8 is equal to that of the asphalt, thereby improving the efficiency of construction.

[0027] See also Figure 4The inner wall of the steel cylinder 1 is provided with an installation groove 12, and there are three installation grooves 12. The three installation grooves 12 are distributed in a circular array along the inner wall of the steel cylinder 1. The steel cylinder 12 is detachably connected to a filter basket 13 through the three installation grooves 12. The inner wall of the filter basket 13 is provided with multiple water filtering holes, which are convenient for blocking construction waste, leaves, concrete blocks and other wastes, preventing construction waste and other wastes from entering the interior of the steel cylinder 1, thereby preventing the steel cylinder 1 from being blocked.

[0028] See also Figure 1-2 The top of the guide rod 7 is fixedly connected with a hexagonal knob 11, and the bottom of the hexagonal knob 11 is in contact with the top of the manhole cover body 8. When the guide rod 7 needs to be rotated, the staff can use an external tool to fix the hexagonal knob 11, and then use an external tool such as a wrench to rotate the guide rod 7, thereby reducing the staff's power consumption and avoiding hand injuries.

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

[0030] See also 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 a plurality of water filtering holes are opened through the top of the filter plate 14 to prevent debris from entering between the steel cylinder 1 and the cavity 2, thereby preventing construction waste, impurities, etc. from damaging the reinforcing rib 15, thereby increasing the service life of the reinforcing rib 15.

[0031] See also Figure 2 A lifting hole 16 is provided through the top of the manhole cover body 8 , and two lifting holes 16 are provided. The two lifting holes 16 are symmetrically distributed on the central axis plane of the manhole cover body 8 , and 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 rainwater and sewage well is completed, the gravel layer is laid, and when the base concrete is ready to be poured, the manhole cover is installed above the gravel layer and poured synchronously with the concrete foundation. When the second layer of asphalt needs to be laid later, the staff can rotate the hexagonal knob 11 on 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 block 10 to rotate. When the position of the block 10 is rotated and aligned with the slide groove 4, under the action of the elastic force of the lifting spring 9 itself, the guide rod 7 is lifted toward the top of the steel cylinder 1, and the lifting distance is 100mm, and the manhole cover body 8 is driven to rise synchronously. Further, the staff can pour cement slurry into the inside of the receiving groove 6 and the cavity 2 to make it reach the required strength; during the laying of the second layer of asphalt, the manhole cover elevation will not deviate. After the laying is completed, the height of the manhole cover body 8 is equal to that of the asphalt, thereby improving the construction efficiency.

[0033] The permanent and temporary combined road manhole cover of the present application 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 present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A permanent and temporary combined road manhole cover, characterized in that: It comprises a steel cylinder, a cavity is provided in the outer wall of the steel cylinder, a sliding tube is fixedly connected in the outer wall of the steel cylinder, a receiving groove is provided in the top of the sliding tube, a sliding groove is provided in the inner wall of the sliding tube, a clamping groove is provided in the bottom of the sliding tube, a guide rod is slidably connected to the inner 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 clamping block is fixedly connected to the bottom of the guide rod, and the outer wall of the clamping block fits with the inner wall of the sliding groove.

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

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

4. According to claim 2, a permanent and temporary combined road manhole cover is characterized in that: A reinforcing rib is fixedly connected inside the outer wall of the steel cylinder.

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

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

7. A construction method for a permanent and temporary combined road manhole cover, comprising a permanent and temporary combined road manhole cover according to any one of claims 1 to 6, characterized in that: After the construction of the rainwater and sewage wells is completed, the gravel layer is laid, and when the base concrete is ready to be poured, the manhole cover is installed above the gravel layer and poured simultaneously with the concrete foundation. When the second layer of asphalt is needed later, the staff rotates the knob on 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 block to rotate. When the position of the block rotates and aligns with the slide slot, the guide rod is lifted toward the top of the steel cylinder under the action of the lifting spring's own elastic force, and the manhole cover body is driven to rise synchronously.

8. The construction method of a permanent and temporary combined road manhole cover according to claim 7, characterized in that: The staff poured cement slurry into the receiving tank and the cavity to make it reach 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 the height of the asphalt.

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