A prefabricated shaft for a road rainwater and sewage inspection well

Abstract

This utility model belongs to the field of municipal engineering technology, specifically a prefabricated manhole for road storm and sewage inspection wells. It includes multiple prefabricated manhole bodies arranged vertically. The inner walls of the lowest prefabricated manhole body have connection ports on both sides, and a manhole cover is installed on the top of the inner wall of the uppermost prefabricated manhole body. The manhole cover has openings at both ends on one side of its interior, and springs are placed inside each opening. One end of each spring is tightly fitted with a limiting rod, and one end of each limiting rod is semi-circular. By placing a compression rod inside the mounting grooves on both sides of one of the prefabricated manhole bodies, the limiting rod between the prefabricated manhole body and the manhole cover is compressed and moves backward. When the limiting rod moves backward, it is positioned between the manhole cover and the prefabricated manhole body, thus limiting the position of the manhole cover.

Description

Technical Field

[0001] This utility model belongs to the field of municipal engineering technology, specifically a prefabricated well cylinder for road storm and sewage inspection wells. Background Technology

[0002] The well casing is prefabricated in the factory and can be directly installed after being transported to the construction site. Compared with the traditional on-site casting of well casing, there is no need to wait for the long curing time after concrete pouring, which greatly shortens the construction cycle and can speed up the construction progress of the entire rainwater and sewage inspection well. It is especially suitable for projects with tight schedules and can effectively reduce the impact of construction on surrounding traffic and residents' lives.

[0003] The principle of prefabricated manholes for road storm and sewage inspection wells mainly involves two aspects: rapid installation and vertical load-bearing capacity. Through precise rapid installation and the application of vertical load-bearing principles, prefabricated manholes for road storm and sewage inspection wells can efficiently accelerate the construction progress of storm and sewage inspection wells, providing strong support for their construction.

[0004] In the existing precast manholes, the manhole covers are mostly laid flat on top of the precast manhole for protection. However, under the conditions of vehicle running over or strong winds, the manhole covers may shift due to vibration or external force, causing pedestrians or vehicles to fall into the manhole. Therefore, in order to solve the above problems, a precast manhole for road storm and sewage inspection wells is proposed. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, the existing prefabricated manhole covers are mostly laid flat on top of the prefabricated manhole for protection during use. However, under the conditions of vehicle running over or strong winds, the manhole covers may shift due to vibration or external force, causing pedestrians or vehicles to fall into the manhole. This utility model proposes a prefabricated manhole for road storm and sewage inspection wells.

[0006] The technical solution adopted by this utility model to solve its technical problem is a prefabricated manhole for road storm and sewage inspection wells, including multiple prefabricated manhole bodies, which are arranged vertically. The inner walls of the lowermost prefabricated manhole body have connection ports on both sides, and a manhole cover is installed on the top of the inner wall of the uppermost prefabricated manhole body. The manhole cover has openings at both ends on one side of its interior, and springs are placed inside each opening. One side of each spring is tightly fitted with a limiting rod, and one side of each limiting rod is semi-circular. The limiting rod, with its side away from the spring, passes through the interior of one of the prefabricated well bodies and is tightly attached to the extrusion rod. One of the prefabricated well bodies has mounting grooves at both ends on one side. The extrusion rod is slidably mounted inside the mounting grooves. By placing the extrusion rod inside the mounting grooves on both sides of one of the prefabricated well bodies, the limiting rod between the prefabricated well body and the well cover is compressed and moves backward. When the limiting rod moves backward, it will be positioned between the well cover and the prefabricated well body, thus achieving the effect of limiting the well cover.

[0007] Preferably, each of the prefabricated well bodies has a groove on its inner wall, and a recess is also formed at the bottom of the groove. Each of the prefabricated well bodies has an arc-shaped baffle inside, and telescopic plates are fixedly installed on the four outer sides of the arc-shaped baffle. Each telescopic plate also has a spring inside, and the outer side of the telescopic plates is located inside the groove. The arc-shaped baffles guide the sewage flowing into the prefabricated well body, preventing sewage from flowing along the inner wall of the prefabricated well body to the connection point of the prefabricated well bodies and causing seepage.

[0008] Preferably, connecting rods are fixedly installed at the four bottom ends of the multiple prefabricated well bodies, connecting grooves are opened at the four top ends of the multiple prefabricated well bodies, and sealing rings are provided between the multiple prefabricated well bodies. One end of the connecting rod passes through the inside of the sealing ring and is located inside the connecting groove. The sealing rings provided between the multiple prefabricated well bodies achieve the effect of blocking external sewage from flowing into the connection of the multiple prefabricated well bodies, preventing sewage from flowing into the connection and polluting the soil and groundwater.

[0009] Preferably, multiple handrails are fixedly installed on one side of the inner wall of each of the prefabricated well bodies, so as to make it easier to reach the bottom of the prefabricated well body.

[0010] Preferably, a rotating rod is rotatably installed inside one side of the manhole cover, and the outer side of the rotating rod is fixedly installed on the inner wall side of one of the prefabricated manhole bodies. The rotating rod drives the manhole cover to flip, so that maintenance personnel can easily open the manhole cover by rotating it without having to move it completely, thus reducing the intensity and time of operation.

[0011] Preferably, the manhole cover has multiple drainage outlets inside; external sewage is discharged into the prefabricated manhole for sewage diversion through the drainage outlets.

[0012] The advantages of this utility model are:

[0013] This utility model utilizes mounting grooves on both sides of a precast manhole cover to place compression rods. This causes a limiting rod between the precast manhole cover and the manhole cover to be compressed and moved backward. When the limiting rod moves backward, it will be positioned between the manhole cover and the precast manhole cover, thus limiting the manhole cover. This solves the problem that in existing precast manhole covers, which are mostly laid flat on top of the precast manhole cover for protection, the manhole cover may shift due to vibration or external force under vehicle traffic or strong winds, causing pedestrians or vehicles to fall. By limiting the manhole cover, external factors can be prevented from causing the manhole cover to shift, thus protecting the safety of pedestrians and vehicles on the road. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 A schematic diagram of the external structure of a prefabricated manhole for road storm and sewage inspection wells;

[0016] Figure 2 A schematic diagram of the unfolded structure of the limiting mechanism;

[0017] Figure 3 This is a schematic diagram of the internal structure of the detachable mechanism;

[0018] Figure 4 This is a schematic diagram of the internal structure of a prefabricated well shaft.

[0019] Figure 5 This is a schematic diagram of the unfolded structure of the sealing mechanism;

[0020] In the diagram: 1. Precast manhole body; 2. Manhole cover; 3. Connection port; 4. Connecting rod; 5. Sealing ring; 6. Connecting groove; 7. Sliding groove; 8. Groove; 9. Arc-shaped baffle; 10. Telescopic plate; 11. Handrail; 12. Rotating rod; 13. Drainage outlet; 14. Spring; 15. Limiting rod; 16. Extrusion rod; 17. Installation groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0022] Please see Figure 1-5 As shown, a prefabricated manhole for road storm and sewage inspection includes multiple prefabricated manhole bodies 1, which are arranged vertically. The inner walls of the lowest prefabricated manhole body 1 have connection ports 3 on both sides. A manhole cover 2 is installed on the top of the inner wall of the uppermost prefabricated manhole body 1. Multiple drainage outlets 13 are provided inside the manhole cover 2. A rotating rod 12 is rotatably installed inside one side of the manhole cover 2. The outer side of the rotating rod 12 is fixedly installed on the inner wall side of one of the prefabricated manhole bodies 1. Openings are provided at both ends of the other side of the manhole cover 2. Springs 14 are placed inside each of the openings. One end of each spring 14 is tightly attached to a limiting rod 15. One end of each limiting rod 15 is semi-circular. The end of the limiting rod 15 away from the spring 14 passes through the inner wall of one of the prefabricated manhole bodies 1. The precast manhole cover 16 is tightly attached to the inner side of the precast manhole cover 1. Both ends of the inner side of the precast manhole cover 1 are provided with mounting grooves 17. The outer side of the pressing rod 16 is slidably installed inside the mounting groove 17. Multiple handrails 11 are fixedly installed on one side of the inner wall of multiple precast manhole covers 1. During operation, in order to prevent the manhole cover 2 from shifting due to vibration or external force under vehicle running or strong wind conditions, causing pedestrians or vehicles to fall, the pressing rod 16 is placed inside the mounting grooves 17 on both sides of one of the precast manhole covers 1. This causes the limiting rod 15 between the precast manhole cover 1 and the manhole cover 2 to be pressed and moved backward. When the limiting rod 15 moves backward, it will be positioned between the manhole cover 2 and the precast manhole cover 1, thereby limiting the manhole cover 2 and preventing external factors from causing the manhole cover 2 to shift.

[0023] Each of the multiple prefabricated shaft bodies 1 has a sliding groove 7 on its inner wall. The bottom of the sliding groove 7 on the inner wall of the multiple prefabricated shaft bodies 1 also has a groove 8. Each of the multiple prefabricated shaft bodies 1 has an arc-shaped baffle 9 inside. Each of the four outer sides of the arc-shaped baffle 9 has a telescopic plate 10 fixedly installed. Each of the multiple telescopic plates 10 also has a spring 14 inside. The outer side of the multiple telescopic plates 10 is located inside the sliding groove 7. During operation, in order to prevent external sewage from flowing along the inner wall of the prefabricated shaft body 1 to the connection between the multiple prefabricated shaft bodies 1, the arc-shaped baffle 9 inside the prefabricated shaft body 1 is used to divert the sewage flowing into the prefabricated shaft body 1, thereby preventing sewage from flowing along the inner wall of the prefabricated shaft body 1 to the connection between the prefabricated shaft bodies 1, preventing sewage leakage and pollution of soil and groundwater.

[0024] Connecting rods 4 are fixedly installed at the four bottom ends of multiple prefabricated manhole bodies 1, and connecting grooves 6 are opened at the four top ends of multiple prefabricated manhole bodies 1. Sealing rings 5 ​​are provided between multiple prefabricated manhole bodies 1. One end of the connecting rod 4 passes through the inside of the sealing ring 5 and is located inside the connecting groove 6. During operation, in order to prevent the connection of multiple prefabricated manhole bodies 1 from being affected by sewage and causing water seepage at the connection, the sealing rings 5 ​​provided between multiple prefabricated manhole bodies 1 are used to seal the connection between multiple prefabricated manhole bodies 1, prevent the inflowing sewage from seeping in, and increase the sealing performance between multiple prefabricated manhole bodies 1.

[0025] Working principle: In existing precast manholes, the manhole cover 2 is mostly laid flat on top of the precast manhole for protection. However, under vehicle pressure or strong winds, the manhole cover 2 may shift due to vibration or external force, causing pedestrians or vehicles to fall. By placing compression rods 16 inside the mounting grooves 17 on both sides of one of the precast manhole body 1, the limiting rods 15 between the precast manhole body 1 and the manhole cover 2 are compressed and moved backward. When the limiting rods 15 move backward, they will be positioned between the manhole cover 2 and the precast manhole body 1, thus limiting the manhole cover 2 and preventing external factors from causing it to shift. When inspectors need to go inside the manhole for inspection, the multiple compression rods 16 are removed to release the limiting rods 15. At this time, one end of the multiple limiting rods 15 will be spring-loaded by the springs 14 at the other end. Force is ejected from inside the manhole cover 2. When the limiting rod 15 is ejected from inside the manhole cover 2, it no longer limits the inside of the manhole cover 2. Then, the manhole cover 2 is opened by rotating the rod 12. When external sewage flows into the interior of the prefabricated manhole body 1, multiple arc-shaped baffles 9 set inside the prefabricated manhole body 1 guide the sewage into the interior of the prefabricated manhole body 1, so that it flows from the middle of the prefabricated manhole body 1 to the bottom, preventing sewage from flowing along the inner wall of the prefabricated manhole body 1 to the joint of multiple prefabricated manhole bodies 1 and causing seepage. When the arc-shaped baffle 9 needs to be replaced after long-term use, the arc-shaped baffle 9 is rotated into the interior of the groove 8, and then the telescopic plate 10 is pressed backward to make the outer surface of the arc-shaped baffle 9 stick tightly to the inner wall of the prefabricated manhole body 1 for removal. The arc-shaped baffle 9 is made of rubber and can be removed by compression deformation to bypass multiple handrails 11.

[0026] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A prefabricated shaft for a road stormwater inspection well, characterized by: The system includes multiple prefabricated well bodies (1), which are arranged vertically. The inner walls of the lowermost prefabricated well body (1) are provided with connection ports (3) on both sides. The top of the inner wall of the uppermost prefabricated well body (1) is fitted with a well cover (2). The well cover (2) has openings at both ends on one side of its interior. Springs (14) are placed inside the openings. One side of each spring (14) is tightly attached to a limiting rod (15). One side of each limiting rod (15) is semi-circular. The side of the limiting rod (15) away from the spring (14) passes through the interior of one of the prefabricated well bodies (1) and is tightly attached to a pressing rod (16). One side of each prefabricated well body (1) has mounting grooves (17) at both ends on one side of its interior. The pressing rod (16) is slidably mounted inside the mounting groove (17).

2. A prefabricated manhole for road stormwater and sewage inspection wells according to claim 1, characterized in that: The inner walls of the multiple prefabricated shaft bodies (1) are provided with sliding grooves (7), and the bottom of the sliding grooves (7) on the inner walls of the multiple prefabricated shaft bodies (1) are also provided with grooves (8). The interior of the multiple prefabricated shaft bodies (1) is provided with arc-shaped baffles (9), and telescopic plates (10) are fixedly installed on the four sides of the outer side of the arc-shaped baffles (9). The interior of the multiple telescopic plates (10) is also provided with springs (14), and the exterior of the multiple telescopic plates (10) is located inside the sliding grooves (7).

3. A prefabricated manhole for road stormwater and sewage inspection wells according to claim 1, characterized in that: Connecting rods (4) are fixedly installed at the bottom four ends of the multiple prefabricated well bodies (1), connecting grooves (6) are opened at the top four ends of the multiple prefabricated well bodies (1), and sealing rings (5) are provided between the multiple prefabricated well bodies (1). One end of the connecting rod (4) passes through the inside of the sealing ring (5) and is located inside the connecting groove (6).

4. A prefabricated manhole for road stormwater and sewage inspection wells according to claim 1, characterized in that: Multiple handrails (11) are fixedly installed on one side of the inner wall of each of the prefabricated shaft bodies (1).

5. A prefabricated manhole for road stormwater and sewage inspection wells according to claim 1, characterized in that: A rotating rod (12) is rotatably installed inside one side of the manhole cover (2), and the outer side of the rotating rod (12) is fixedly installed on the inner wall side of one of the prefabricated manhole bodies (1).

6. A prefabricated manhole for road stormwater and sewage inspection wells according to claim 1, characterized in that: The manhole cover (2) has multiple drainage outlets (13) inside.

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