High-ductility concrete assembly type well lid structure

Abstract

The utility model relates to the technical field of well lids, and discloses a high-ductility concrete assembly type well lid structure. According to the high-ductility concrete assembly type well lid structure, through the arrangement of the inner frame, the outer frame, the adjusting mechanism and the concrete mechanism, when a well lid is maintained, a lifting handle is pulled by hand, and the inner frame rotates relative to the outer frame with rotating shafts fixed to the two sides as the rotating center to open the well lid; the plug-in openings of the supporting frame and one set of plug-in grooves are fixed through the plug pins, the inclination angle of the well lid is adjusted by adjusting the positions of the plug pins, meanwhile, the well lid block is made of the UHPC material, the UHPC material has the advantages of being high in strength, toughness and durability, and the well lid can bear larger loads through combination of the UHPC material, the reinforcing mesh and the reinforcing ribs. Therefore, the structural design that the UHPC material is matched with the adjusting angle not only enhances the safety and applicability of the well lid, but also optimizes the maintenance management, and provides a more efficient and reliable solution for the construction and management of municipal facilities.

Description

Technical Field

[0001] This utility model relates to the field of manhole cover technology, and in particular to a high-ductility concrete prefabricated manhole cover structure. Background Technology

[0002] As citizens' demand for green travel continues to increase, slow-traffic system facilities are gradually being improved, and a large number of aesthetically pleasing, safe, and comfortable sidewalks, secondary pedestrian islands, and barrier-free facilities at intersections have emerged. However, since manhole covers on sidewalks are still unavoidable, the problem of their installation is becoming increasingly prominent. During inspections, the owners of these manhole covers often violently dismantle or reinstall them, causing varying degrees of damage to the decorative manholes. This leads to loosening of the sidewalk structure around the manhole cover, fractures in the internal structure of the decorative manhole, and subsequent loosening and subsidence, posing safety hazards. Due to the heavy weight of concrete, opening and closing manhole covers requires two people simultaneously, resulting in low overall maintenance efficiency. This fails to improve the integrity of the decorative manhole and sidewalk structure, reduce the amount of stainless steel used in the decorative manholes, and does not save on maintenance costs.

[0003] A UHPC high-ductility concrete prefabricated manhole cover, disclosed in announcement number CN22170250U, relates to the field of manhole covers. It includes a manhole pit, a pit floor, a manhole cover block A, and a concrete inverted block. The manhole pit contains prefabricated manhole cover assemblies, a manhole pit shoulder is located on the pit floor, and a pit body is located within the shoulder. The top surface of the concrete inverted block is equipped with lifting handles A and B. This UHPC high-ductility concrete prefabricated manhole cover allows for factory production of prefabricated block units, exhibiting standardization and specialization. It has strong adaptability and promotional value in various manhole cover application scenarios. The UHPC high-ductility concrete prefabricated manhole cover utilizes modular production, simplifying installation, improving construction efficiency, reducing production costs, and enhancing overall aesthetics.

[0004] While the aforementioned patent achieves modular production of UHPC high-ductility concrete prefabricated manhole covers, simplifying installation, improving construction efficiency, reducing production costs, and enhancing overall aesthetics, the manhole cover can only be moved by lifting the cover block during installation and maintenance. It cannot be tilted and fixed at the original location of the manhole cover to achieve the purpose of maintenance, which increases the complexity of operation and maintenance. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The purpose of this utility model is to provide a high-ductility concrete prefabricated manhole cover structure to solve the problem mentioned in the background art that the manhole cover can only be moved away by lifting the manhole cover block during installation and maintenance, and cannot be tilted open and fixed at the original location of the manhole cover to achieve the purpose of maintenance, which increases the complexity of operation and maintenance.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a high-ductility concrete prefabricated manhole cover structure, comprising an inner frame and an outer frame. An adjustment mechanism is rotatably connected to the bottom of the inner frame. Multiple sets of manhole cover blocks are arranged inside the inner frame, and each set of manhole cover blocks contains a concrete mechanism. The adjustment mechanism includes two sets of support frames rotatably connected to the bottom of the inner frame. One end of each set of support frames has an insertion interface, and a pin is connected through the insertion interface. Multiple sets of insertion slots are provided on both sides of the outer frame. The concrete mechanism includes a steel mesh disposed inside the multiple sets of manhole cover blocks, and two sets of reinforcing ribs are connected through the top of the steel mesh. Filler material is provided inside each set of manhole cover blocks.

[0009] As a further embodiment of this utility model, the filler material is UHPC material, and the interior of the filler material is provided with multiple honeycomb structures. Through the arrangement of the filler material, the characteristics of high strength, low density and good durability of the manhole cover are improved.

[0010] As a further embodiment of this utility model, two sets of lifting handles are provided above each of the multiple sets of manhole cover blocks. The two sets of lifting handles are symmetrically distributed above the manhole cover blocks, and the lifting handles facilitate inspection and maintenance.

[0011] As a further embodiment of this utility model, the surface of each set of manhole cover blocks is provided with an anti-ultraviolet coating, and a waterproof coating is provided on the outside of the anti-ultraviolet coating. The anti-ultraviolet coating enhances the anti-fouling ability and extends the service life.

[0012] As a further embodiment of this utility model, a guide channel is provided at the bottom of each of the multiple sets of manhole cover blocks. The guide channel is located at the center of the bottom of the manhole cover block, and the guide channel improves the drainage efficiency.

[0013] As a further embodiment of this utility model, both the inner frame and the outer frame are made of stainless steel, and a gap is provided between the inner frame and the outer frame. The gap allows the inner frame to be rotated to open the manhole cover.

[0014] As a further embodiment of this utility model, a rotating shaft is fixedly connected to both sides of the inner frame. The rotating shaft is rotatably connected to the inner side wall of the outer frame. The rotating shaft serves to open the manhole cover by rotation.

[0015] (III) Beneficial Effects

[0016] This utility model provides a high-ductility concrete prefabricated manhole cover structure, which has the following beneficial effects:

[0017] 1. This high-ductility concrete prefabricated manhole cover structure, through the setting of an inner frame, an outer frame, an adjustment mechanism, and a concrete mechanism, allows the manhole cover to be opened by pulling the handle during maintenance. The inner frame rotates relative to the outer frame around the fixed pivots on both sides. The insertion interface of the support frame is fixed with a pin in one of the insertion slots, and the tilt angle of the manhole cover can be adjusted by adjusting the position of the pin. At the same time, the manhole cover block is made of UHPC material, which has the characteristics of high strength, high toughness, and high durability. Combined with steel mesh and reinforcing ribs, the manhole cover can withstand greater loads. Thus, the UHPC material combined with the angle-adjusting structural design not only enhances the safety and applicability of the manhole cover, but also optimizes maintenance management, providing a more efficient and reliable solution for the construction and management of municipal facilities. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the adjustment mechanism of this utility model;

[0020] Figure 3 This is a schematic diagram of the concrete coagulation mechanism of this utility model.

[0021] In the diagram: 1. Inner frame; 2. Outer frame; 3. Adjustment mechanism; 301. Support frame; 302. Pin; 303. Insertion groove; 4. Manhole cover block; 5. Concrete structure; 501. Steel mesh; 502. Reinforcing rib; 503. Filler; 6. Honeycomb structure; 7. Lifting handle; 8. UV-resistant coating; 9. Waterproof coating; 10. Guide channel; 11. Rotating shaft. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0023] Please see Figures 1 to 3This utility model provides a technical solution: a high-ductility concrete prefabricated manhole cover structure, including an inner frame 1 and an outer frame 2. The bottom of the inner frame 1 is rotatably connected to an adjustment mechanism 3. Multiple sets of manhole cover blocks 4 are arranged inside the inner frame 1. Each set of manhole cover blocks 4 is equipped with a concrete mechanism 5. The adjustment mechanism 3 includes two sets of support frames 301 rotatably connected to the bottom of the inner frame 1. One end of each set of support frames 301 is provided with an insertion interface. A pin 302 is connected through the insertion interface. Multiple sets of insertion slots 303 are provided on both sides of the outer frame 2. The concrete mechanism 5 includes a steel mesh 501 arranged inside the multiple sets of manhole cover blocks 4. Two sets of reinforcing ribs 502 are connected through the top of the steel mesh 501. Each set of manhole cover blocks 4 is equipped with filler material 503.

[0024] As a further embodiment of this utility model, the filler 503 is made of UHPC material, and the interior of the filler 503 is provided with multiple honeycomb structures 6. The filler 503 is designed to improve the high strength, low density and good durability of the manhole cover.

[0025] As a further embodiment of this utility model, two sets of lifting handles 7 are provided above each of the multiple sets of manhole cover blocks 4. The two sets of lifting handles 7 are symmetrically distributed above the manhole cover blocks 4. The lifting handles 7 facilitate inspection and maintenance.

[0026] As a further embodiment of this utility model, the surfaces of multiple sets of manhole cover blocks 4 are provided with an anti-ultraviolet coating 8, and a waterproof coating 9 is provided on the outside of the anti-ultraviolet coating 8. The anti-ultraviolet coating 8 enhances the anti-fouling ability and extends the service life.

[0027] As a further embodiment of this utility model, a guide channel 10 is provided at the bottom of each of the multiple sets of manhole cover blocks 4. The guide channel 10 is located at the center of the bottom of the manhole cover block 4. The guide channel 10 improves the drainage efficiency.

[0028] As a further embodiment of this utility model, both the inner frame 1 and the outer frame 2 are made of stainless steel. A gap is provided between the inner frame 1 and the outer frame 2. The gap allows the inner frame 1 to rotate and open the manhole cover.

[0029] As a further embodiment of this utility model, a rotating shaft 11 is fixedly connected to both sides of the inner frame 1. The rotating shaft 11 is rotatably connected to the inner side wall of the outer frame 2. The rotating shaft 11 serves to rotate and open the manhole cover.

[0030] In this invention, the working steps of the device are as follows:

[0031] First step: When maintaining the manhole cover, pull the handle 7 by hand. The inner frame 1 rotates relative to the outer frame 2 around the rotating shafts 11 fixed on both sides to open the manhole cover. Fix the insertion interface of the support frame 301 to one of the insertion slots 303 with pins 302. Adjust the position of the pins 302 to adjust the tilt angle of the manhole cover. At the same time, the manhole cover block 4 is made of UHPC material. UHPC material has the characteristics of high strength, high toughness and high durability. Combined with the steel mesh 501 and the reinforcing ribs 502, the manhole cover can withstand a greater load.

[0032] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0033] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-ductility concrete fabricated well lid structure comprising an inner frame (1) and an outer frame (2), characterized in that: The bottom of the inner frame (1) is rotatably connected with an adjusting mechanism (3), the inside of the inner frame (1) is provided with a plurality of groups of well lid blocks (4), the inside of each group of well lid blocks (4) is provided with a coagulation mechanism (5), The adjusting mechanism (3) comprises two groups of support frames (301) rotatably connected to the bottom of the inner frame (1), one end of each group of support frames (301) is provided with an insertion port, the inside of the insertion port is rotatably connected with a bolt (302), the two sides of the outer frame (2) are provided with a plurality of groups of insertion grooves (303), The coagulation mechanism (5) comprises a steel mesh (501) arranged in the plurality of groups of well lid blocks (4), the upper side of the steel mesh (501) is rotatably connected with two groups of reinforcing ribs (502), the inside of each group of well lid blocks (4) is provided with a filler (503).

2. The high-ductility concrete prefabricated manhole cover structure according to claim 1, characterized in that: The material of the filler (503) is UHPC material, the inside of the filler (503) is provided with a plurality of groups of honeycomb structures (6).

3. The high-ductility concrete prefabricated manhole cover structure according to claim 1, characterized in that: The upper side of each group of well lid blocks (4) is provided with two groups of lifting handles (7), the two groups of lifting handles (7) are symmetrically arranged above the well lid blocks (4).

4. The high-ductility concrete prefabricated manhole cover structure according to claim 1, characterized in that: The surface of each group of well lid blocks (4) is provided with an ultraviolet-proof coating (8), the outer side of the ultraviolet-proof coating (8) is provided with a waterproof coating (9).

5. The high-ductility concrete prefabricated manhole cover structure according to claim 1, characterized in that: The bottom of each group of well lid blocks (4) is provided with a flow guide groove (10), the flow guide groove (10) is arranged at the central position of the bottom of the well lid block (4).

6. The high-ductility concrete prefabricated manhole cover structure according to claim 1, characterized in that: The material of the inner frame (1) and the outer frame (2) is stainless steel material, and a gap is arranged between the inner frame (1) and the outer frame (2).

7. The high-ductility concrete prefabricated manhole cover structure according to claim 1, characterized in that: The two sides of the inner frame (1) are fixedly connected with a rotating shaft (11), and the rotating shaft (11) is rotatably connected to the inner side wall of the outer frame (2).

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