A precast inspection well structure

Abstract

The utility model discloses a prefabricated inspection well seat structure, including well seat body, the well seat body top is equipped with the cylinder, is equipped with the connecting cylinder between cylinder and well seat body connection, and the connecting cylinder is provided with a plurality of, and a plurality of connecting cylinder length is different setting, and the well seat body top and cylinder bottom all are equipped with the connecting groove in the corresponding connecting cylinder, and the inside of two connecting grooves all is equipped with the reinforcing rod, and the reinforcing rod is provided with a plurality of on the circumference direction of connecting groove, and the upper and lower ends of a plurality of connecting cylinders all are equipped with the reinforcing hole in the corresponding a plurality of reinforcing rods, and the inner wall of well seat body and cylinder all are equipped with the first fixed seat at intervals, and the inner wall of a plurality of connecting cylinders all are equipped with the second fixed seat at intervals, and a plurality of first fixed seat and second fixed seat all can detachably be equipped with the U type handrail frame, through the design of connecting cylinder, and the well seat body adopts the detachable assembly type design, replaces traditional integral pouring structure, and the weight and volume of single component are reduced greatly, and the transportation and on -the -spot assembly are convenient, and the construction efficiency and flexibility are improved.

Description

Technical Field

[0001] This utility model relates to the field of inspection well technology, and more specifically, to a prefabricated inspection well base structure. Background Technology

[0002] Manholes are an indispensable part of urban construction, providing important functions for the inspection and maintenance of urban drainage, water supply, and power systems. Precast manholes are structures that are assembled after prefabrication. However, the existing precast manhole base structures are relatively long and bulky, making them prone to damage during transport and handling. They are also inconvenient to disassemble and assemble. Furthermore, during inspection, workers need to climb the spaced handrails, which are integrated into the structure, making replacement and maintenance cumbersome. In addition, the devices lack suitable fall protection mechanisms, so safety needs to be improved. Utility Model Content

[0003] (a) Technical problems to be solved To address the problems existing in the prior art, this utility model provides a prefabricated manhole base structure to solve the technical problems mentioned in the background art, such as the overall long length and large volume of the manhole base, the susceptibility to collisions and damage during transfer and transportation, and the inconvenience of disassembly and assembly.

[0004] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a prefabricated manhole base structure, including a base body, a cylinder on top of the base body, a connecting cylinder connecting the cylinder and the base body, multiple connecting cylinders of different lengths, connecting grooves corresponding to the connecting cylinders at the top and bottom of the base body and the cylinder, reinforcing rods inside the connecting grooves, multiple reinforcing rods circumferentially opposite the connecting grooves, reinforcing holes at the top and bottom of the multiple connecting cylinders corresponding to the multiple reinforcing rods, first fixing seats spaced apart on the inner walls of the base body and the cylinder, second fixing seats spaced apart on the inner walls of the multiple connecting cylinders, and U-shaped handrails detachably mounted on the multiple first fixing seats and second fixing seats.

[0005] The present invention is further configured such that each of the plurality of first fixing seats and second fixing seats is symmetrically provided with mounting grooves corresponding to the U-shaped handrail frame, which facilitates disassembly and assembly.

[0006] The present invention is further configured such that each of the first and second fixing seats has a first mounting hole at both ends corresponding to the mounting groove, and each of the U-shaped handrail has a second mounting hole at both ends corresponding to the first mounting hole. The first mounting hole and the second mounting hole are connected by bolts to achieve installation and locking.

[0007] The present invention is further configured such that a fall protection net can be detachably provided on the inner wall of each of the multiple connecting cylinders on the side away from the second fixed seat, thereby achieving internal fall protection.

[0008] The present invention is further configured such that the outer end face of the fall arrest net is provided with an arc-shaped plate, the lower end face of the arc-shaped plate is provided with a positioning rod, and multiple positioning rods are provided. The inner wall of the connecting cylinder is provided with positioning seats corresponding to the multiple positioning rods for easy installation.

[0009] The present invention is further configured such that each of the outer end faces of the plurality of positioning rods is provided with a positioning ring, and the positioning ring and the positioning rod are threadedly connected to achieve installation and locking.

[0010] The present invention is further configured such that a conical pouring head is provided at the bottom end of the well base body, and multiple conical pouring heads are provided in the circumferential direction to improve the overall initial installation stability.

[0011] (III) Beneficial Effects Compared with the prior art, the present invention provides a prefabricated manhole base structure, which has the following beneficial effects: 1. Through the design of the connecting cylinder, the well base body adopts a detachable and assembleable design. By selecting a connecting cylinder of appropriate length to connect with the upper cylinder and the bottom well base body, it replaces the traditional integral casting structure, which greatly reduces the weight and volume of individual components, facilitates transportation and on-site assembly, effectively solves the problem of difficult transportation of large prefabricated components, and improves construction efficiency and flexibility.

[0012] 2. Through the design of the U-shaped handrail, the U-shaped handrail can be detachably installed on the fixed seat on the inner wall of the well base and the connecting cylinder by bolts. This not only facilitates safe climbing for personnel, but also allows for quick replacement according to wear or damage. This avoids the problem of difficult maintenance of traditional welded fixed handrails and maintains the safety and stability of the climbing structure for a long time.

[0013] 3. Through the design of the fall protection net, the fall protection net is connected to the positioning seat on the inner wall of the connecting cylinder through the positioning rod to form a detachable protective structure, which can provide effective fall protection during personnel climbing. At the same time, its modular design facilitates later maintenance or replacement, ensuring the continuous reliability of the protective function and improving the safety level of the inspection well. Attached Figure Description

[0014] Figure 1 A schematic diagram of the overall structure of a preferred prefabricated manhole base structure; Figure 2 A schematic diagram of a preferred prefabricated manhole base structure; Figure 3A schematic diagram of a preferred prefabricated manhole base structure without a U-shaped handrail. Figure 4 A schematic diagram of a preferred connecting cylinder structure for a prefabricated manhole base; Figure 5 A schematic diagram of a preferred U-shaped handrail structure for a prefabricated manhole base.

[0015] In the diagram: 1. Well base body; 2. Cylinder; 3. Connecting cylinder; 4. Connecting groove; 5. Reinforcing rod; 6. Reinforcing hole; 7. First fixed seat; 8. Second fixed seat; 9. U-shaped handrail; 10. Mounting groove; 11. First mounting hole; 12. Second mounting hole; 13. Fall protection net; 14. Arc-shaped plate; 15. Positioning rod; 16. Positioning seat; 17. Positioning ring; 18. Conical pouring head. Detailed Implementation

[0016] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0017] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0018] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0019] Please see Figures 1-5 A prefabricated manhole base structure includes a base body 1, a cylinder 2 on top of the base body 1, and a connecting cylinder 3 connecting the cylinder 2 and the base body 1. Multiple connecting cylinders 3 are provided, each with a different length. Connecting grooves 4 are provided at the top of the base body 1 and the bottom of the cylinder 2 corresponding to the connecting cylinders 3. Reinforcing rods 5 are provided inside both connecting grooves 4. Multiple reinforcing rods 5 are provided circumferentially relative to the connecting grooves 4. Reinforcing holes 6 are provided at the top and bottom ends of the multiple connecting cylinders 3 corresponding to the multiple reinforcing rods 5. First fixing seats 7 are provided at intervals on the inner walls of the base body 1 and the cylinder 2. Second fixing seats 8 are provided at intervals on the inner walls of the multiple connecting cylinders 3. U-shaped handrails 9 can be detachably mounted on both the first fixing seats 7 and the second fixing seats 8.

[0020] In this embodiment, a suitable length of connecting cylinder 3 is selected for installation according to the installation and use environment. The connecting cylinder 3 is installed between the well base body 1 and the cylinder 2. The connecting cylinder 3 and the connecting groove 4 cooperate, and the reinforcing rod 5 and the reinforcing hole 6 cooperate to strengthen the installation point. After assembly, the whole is stably connected by cement mortar and put into use.

[0021] More specifically, when it is necessary to inspect the internal pipes of the well base, one can climb by holding a U-shaped handrail 9.

[0022] Please see Figures 1-3 and Figure 5 As one embodiment of the U-shaped handrail 9: multiple first fixing seats 7 and second fixing seats 8 are symmetrically provided with mounting grooves 10 corresponding to the U-shaped handrail 9, multiple first fixing seats 7 and second fixing seats 8 are provided with first mounting holes 11 corresponding to the mounting grooves 10 at both ends, and the U-shaped handrail 9 is provided with second mounting holes 12 corresponding to the first mounting holes 11 at both ends, and the first mounting holes 11 and the second mounting holes 12 are connected by bolts.

[0023] Specifically, after a U-shaped handrail 9 is damaged in a certain position after long-term use, the U-shaped handrail 9 is disassembled and replaced. The new U-shaped handrail 9 is installed in the corresponding mounting slot 10, with the first mounting hole 11 and the second mounting hole 12 aligned, and the bolts are passed through and tightened to fix it.

[0024] Please see Figure 4 As one implementation method for fall protection: multiple connecting cylinders 3 are detachably provided with fall protection nets 13 on the side away from the second fixed seat 8 on the inner wall. The outer end face of the fall protection net 13 is provided with an arc-shaped plate 14, and the lower end face of the arc-shaped plate 14 is provided with a positioning rod 15. Multiple positioning rods 15 are provided. The inner wall of the connecting cylinder 3 is provided with a positioning seat 16 corresponding to the multiple positioning rods 15. The bottom of the outer end face of the multiple positioning rods 15 is provided with a positioning ring 17. The positioning ring 17 and the positioning rod 15 are threadedly connected.

[0025] Specifically, the fall protection net 13 with the arc-shaped plate 14 is installed inside the corresponding connecting cylinder 3, the positioning rod 15 and the positioning seat 16 are installed and positioned together, and the positioning ring 17 and the positioning rod 15 are locked together by thread.

[0026] Please see Figure 1 and Figure 2 As one implementation method for preliminary installation: a conical pouring head 18 is provided at the bottom of the well base body 1, and multiple conical pouring heads 18 are provided in the circumferential direction.

[0027] Specifically, when the well base body 1 is poured, a conical pouring head 18 is poured at the bottom. The conical pouring head 18 provides initial reinforcement and protection for the installation of the well base body 1, ensuring the stability of the bottom installation.

[0028] In summary, the overall equipment is in use: When in the assembly state, select a suitable length of connecting cylinder 3 for assembly. The well base body 1, connecting cylinder 3 and cylinder 2 are assembled together. The connecting cylinder 3 is inserted into the corresponding connecting groove 4. The reinforcing rod 5 and reinforcing hole 6 are installed and reinforced. After the initial assembly, the whole is fixed and connected by cement mortar. The cone-shaped pouring head 18 at the bottom of the well base body 1 provides stable reinforcement and limit for the bottom installation.

[0029] When climbing, the user holds multiple U-shaped handrails 9 and climbs up and down inside the device to facilitate the inspection and maintenance of the internal pipes. During the climbing process, the fall protection net 13 protects the user from falling and avoids the danger of accidental fall.

[0030] When the U-shaped handrail 9 is being replaced, if it is damaged after prolonged use, the U-shaped handrail 9 should be replaced. The bolts between the first mounting hole 11 and the second mounting hole 12 should be removed, the U-shaped handrail 9 should be disassembled, and the new U-shaped handrail 9 should be inserted into the corresponding mounting slot 10. The first mounting hole 11 and the second mounting hole 12 should be aligned, and the bolts should be passed through and tightened to fix it.

[0031] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A prefabricated manhole base structure, comprising a base body (1), characterized in that: A cylinder (2) is provided above the well base body (1). A connecting cylinder (3) is provided between the cylinder (2) and the well base body (1). Multiple connecting cylinders (3) are provided, and the lengths of the multiple connecting cylinders (3) are different. A connecting groove (4) is provided at the top of the well base body (1) and the bottom of the cylinder (2) corresponding to the connecting cylinder (3). A reinforcing rod (5) is provided inside the two connecting grooves (4). Multiple reinforcing rods (5) are provided in the circumferential direction relative to the connecting grooves (4). Reinforcing holes (6) are provided at the upper and lower ends of the multiple connecting cylinders (3) corresponding to the multiple reinforcing rods (5). A first fixing seat (7) is provided at intervals on the inner wall of the well base body (1) and the cylinder (2). A second fixing seat (8) is provided at intervals on the inner wall of the multiple connecting cylinders (3). A U-shaped handrail (9) can be detachably provided on the multiple first fixing seats (7) and the multiple second fixing seats (8).

2. The prefabricated manhole base structure according to claim 1, characterized in that: Each of the first fixed base (7) and the second fixed base (8) is provided with a mounting groove (10) symmetrically corresponding to the U-shaped handrail frame (9).

3. The prefabricated manhole base structure according to claim 2, characterized in that: The first fixing seat (7) and the second fixing seat (8) are provided with first mounting holes (11) at both ends corresponding to the mounting groove (10), and the U-shaped handrail frame (9) is provided with second mounting holes (12) at both ends corresponding to the first mounting holes (11). The first mounting holes (11) and the second mounting holes (12) are connected by bolts.

4. The prefabricated manhole base structure according to claim 1, characterized in that: Each of the connecting cylinders (3) has a detachable fall protection net (13) on the side of its inner wall away from the second fixed seat (8).

5. A prefabricated inspection well base structure according to claim 4, characterized in that: The fall arrest net (13) has an arc-shaped plate (14) on its outer end face, and a positioning rod (15) is provided on the lower end face of the arc-shaped plate (14). There are multiple positioning rods (15), and a positioning seat (16) is provided on the inner wall of the connecting cylinder (3) corresponding to the multiple positioning rods (15).

6. A prefabricated inspection well base structure according to claim 5, characterized in that: Each of the positioning rods (15) has a positioning ring (17) at the bottom of its outer end face, and the positioning ring (17) and the positioning rod (15) are threaded together.

7. The prefabricated manhole base structure according to claim 1, characterized in that: The bottom end of the well base body (1) is provided with a conical pouring head (18), and multiple conical pouring heads (18) are provided in the circumferential direction.

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