Inspection well and drainage pipe connecting structure based on rapid assembly construction

Abstract

The utility model discloses an inspection well and drain pipe connecting structure based on rapid assembly construction, and aims to solve the problem of leakage at a socket connection point of an existing prefabricated drain pipe adopting a socket connection technology. Comprising a prefabricated inspection well and a drainage pipe, a first connecting end of the end of the drainage pipe is connected with the inspection well through mechanical connection, the drainage pipe is a reinforced concrete prefabricated drainage pipe, the two ends of the drainage pipe are the first connecting end and the second connecting end respectively, and an installation opening of the inspection well is a stepped installation concave table. An inner ring of bolt holes and an outer ring of bolt holes are formed in the mounting concave table, the bolt holes in the inner ring are matched with the connecting steel bars on the first connecting end, and the bolt holes in the outer ring are matched with the bolt holes in the first connecting end; the first connecting end is matched with the mounting boss in an inserted mode and mechanically connected with the connecting reinforcing steel bar through a bolt assembly. Through implementation of the technology, assembly type construction of the drainage pipe is achieved, and the use requirement of a construction site can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of civil construction engineering construction. Background Art

[0002] Generally, cast-in-place construction operation mode, namely wet pouring operation, is adopted for inspection wells and drain pipes. The construction process can be divided into trench excavation → cushion layer → formwork installation → concrete pouring → soil backfilling. The technological process is long and there are many quality control nodes.

[0003] Reinforced concrete prefabrication technology has been applied to a certain extent in precast wall panels, precast floor slabs, precast box culverts and drain pipes.

[0004] For example, the existing precast drain pipes adopt socket and spigot structure for connection. The technical drawback of the socket and spigot structure connection is that the connection strength is not high, and sewage leakage is likely to occur at the socket and spigot points. Summary of the Invention

[0005] In order to solve the deficiencies of the prior art, the utility model provides a connection structure between an inspection well and a drain pipe based on rapid assembly construction, aiming to solve the leakage problem existing at the socket and spigot connection points of the existing precast drain pipes using socket and spigot connection technology.

[0006] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0007] The connection structure between an inspection well and a drain pipe based on rapid assembly construction includes a prefabricated inspection well and a drain pipe. The first connection end at the end of the drain pipe is connected to the inspection well through mechanical connection. It is characterized in that: the drain pipe is a reinforced concrete precast drain pipe, with two ends being the first connection end and the second connection end respectively. The periphery of the first connection end has a conical structure with a thickened thickness, and N bolt holes and N connecting steel bars are evenly distributed at equal intervals along the circumferential direction of the drain pipe on the conical structure. The connecting steel bar is a part of the steel cage structure inside the drain pipe and extends to the outside of the drain pipe port, and local threads are provided on the connecting steel bar. The second connection end has a locally thickened flange structure, and bolt holes are reserved during prefabrication on the flange structure. The installation opening of the inspection well is a stepped installation concave platform, and inner and outer two circles of bolt holes are arranged at the installation concave platform. Among them, the bolt holes in the inner circle cooperate with the connecting steel bars on the first connection end, and the bolt holes in the outer circle cooperate with the bolt holes on the first connection end. The first connection end is in plug-in fit with the installation convex platform and is mechanically connected through bolt assemblies and connecting steel bars.

[0008] Further, the fitting circle where the connecting steel bar is located is concentric with the fitting circle corresponding to the bolt holes on the conical structure and is located inside it.

[0009] Further, a rubber sealing gasket is provided at the installation concave platform between the first connection end and the inspection well.

[0010] Further, concrete caps are covered on the exposed parts of all bolts and nuts.

[0011] A drain pipe, which is a precast reinforced concrete drain pipe, with the two ends being a first connection end and a second connection end respectively. It is characterized in that: the periphery of the first connection end has a conical structure with a thickened thickness, and N bolt holes and N connecting steel bars are evenly distributed at equal intervals along the circumferential direction of the drain pipe on this conical structure. The connecting steel bar is part of the steel cage structure inside the drain pipe and extends to the outside of the drain pipe port, and local threads are provided on the connecting steel bar; the second connection end has a locally thickened flange structure, and bolt holes are reserved during prefabrication on this flange structure.

[0012] The beneficial effects of the present utility model are as follows: The implementation of this technology realizes the assembly construction of the drain pipe, which can meet the usage requirements at the construction site. Moreover, through the thickened and enlarged design at both ends of the drain pipe, the bonding strength and the bonding area at the connection mating surface are improved, and reliable connection is achieved through this mechanical connection. Next, through combining specific embodiments, the technical effects of the present utility model will be further analyzed. Description of the Drawings

[0013] Figure 1 It is the longitudinal sectional connection structure of the present utility model.

[0014] Figure 2 It is the three-dimensional structure of the drain pipe.

[0015] Figure 3 It is the three-dimensional structure of the drain pipe.

[0016] In the figure:

[0017] 10 Drain pipe, 11 First connection end, 12 Second connection end, 13 Pipe body,

[0018] 111 Conical structure, 112 Bolt hole, 113 Enlarged hole, 114 Bolt assembly, 115 Connecting steel bar,

[0019] 121 Bolt hole,

[0020] 20 Inspection well,

[0021] 30 Rubber sealing gasket,

[0022] 40 Concrete cap. Detailed Embodiments

[0023] Connection structure between inspection well and drainage pipe based on rapid assembly construction. In this connection structure, the inspection well and the drainage pipe adopt precast reinforced concrete structures, that is, they are prefabricated and formed in the factory and transported to the construction site for assembly.

[0024] Combined with the attached Figure 1 to the attached Figure 3 A detailed description of this embodiment is given. This description process is exemplary and does not constitute a self-limitation of the protection scope of the claim book.

[0025] Drainage pipe 10. In this embodiment, it is a long pipe component with an inner diameter of 0.8 meters and a single length of not less than 20 meters. The wall thickness of this drainage pipe is not less than 10 centimeters, and there is a steel cage structure inside the wall. One end of this drainage pipe is connected to the inspection well, which is the first connection end 11, and the other end is connected to another drainage pipe, which is the second connection end 12. The middle is the pipe body 13 with equal wall thickness.

[0026] The periphery of the first connection end 11 has a thickened conical structure 111. The conical structure can effectively increase the contact area with the installation surface of the inspection well, and there are 8 bolt holes 112 evenly distributed at equal intervals along the circumferential direction of the pipe on this conical structure. And an enlarged hole 113 is provided on one side of the conical surface corresponding to the bolt hole here, which is convenient for the fastening of the fastening bolt. Correspondingly, 8 bolt holes are also provided on the inspection well, and mechanical anchoring is carried out between the first connection end and the inspection well through eight groups of bolt assemblies 114.

[0027] And there is a connecting steel bar 115 on the drainage pipe at the first connection end 11. This connecting steel bar is a part of the steel cage structure in the main structure of the drainage pipe itself and is formed by extending to the outside of the drainage pipe port. The extended length of this connecting steel bar is greater than the wall thickness of the inspection well, and local threads are provided on this connecting steel bar 115. After this connecting steel bar passes through the corresponding perforation on the inspection well, a locking nut is locked. The number of this connecting steel bar 115 is 8, and the fitting circle where the connecting steel bar 115 is located is concentric with the fitting circle corresponding to the 8 bolt holes on the conical structure and is located inside it. The first connection end 11 realizes rapid connection with the inspection well through two circles of mechanical fastening.

[0028] A rubber sealing gasket (not shown in the figure) is provided at the mating surface between the first connection end 11 and the inspection well to prevent water seepage and seal the mating surface between the two.

[0029] The installation opening on the inspection well 20 has the following structural features: This installation opening is stepped and has an installation concave platform. This installation concave platform is inserted and mated with the first connection end. There are two inner and outer circles of bolt holes provided at this installation concave platform. The inner circle of bolt holes is used for the connecting steel bar on the first connection end to pass through, and the outer circle of bolt holes is used for the bolt on the first connection end to pass through.

[0030] The second connection end 12, the second connection end 12 has a flange structure with a locally thickened part. One end of the flange structure is a flat end face, and the other end is a conical shape with a chamfer design. When prefabricating on the flange structure, bolt holes 121 are reserved. The bolt holes 121 are perforations for high-strength bolts, and adjacent two drain pipes are quickly connected by bolts.

[0031] A rubber gasket 30 is arranged at the mating surface of the flange structures of the above two drain pipes and is clamped under the tension of the high-strength bolts to form a mechanical connection and has a water leakage prevention effect.

[0032] After the connection is completed, the exposed parts of all bolts and nuts are sealed with high-strength concrete to form a concrete cap 40, which is an anti-rust and protection measure to effectively protect the bolts and nuts.

[0033] The above-described embodiments are only descriptions of the preferred embodiments of the present invention and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those skilled in the relevant art to the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A connection structure between an inspection well and a drainage pipe based on rapid assembly construction, comprising a prefabricated inspection well and a drainage pipe, wherein a first connection end of the drainage pipe is connected to the inspection well through a mechanical connection, characterized in that; The drain pipe is a prefabricated reinforced concrete drain pipe, with two ends respectively being a first connecting end and a second connecting end. The periphery of the first connecting end has a conical structure with expanded thickness, and N bolt holes and N connecting steel bars are evenly and evenly distributed on the conical structure along the circumference of the drain pipe. The connecting steel bar is a part of the steel cage structure in the drain pipe and extends to the outside of the drain pipe port, and a local thread is arranged on the connecting steel bar; the second connecting end has a locally thickened flange structure, and bolt holes are reserved on the flange structure during prefabrication; the installation opening of the inspection well is a stepped installation recess, and inner and outer circles of bolt holes are arranged at the installation recess, wherein the bolt holes of the inner circle cooperate with the connecting steel bars on the first connecting end, and the bolt holes of the outer circle cooperate with the bolt holes on the first connecting end; the first connecting end is plug-fitted with the installation boss, and is mechanically connected to the connecting steel bar through a bolt assembly.

2. The inspection well and drainage pipe connection structure based on rapid assembly construction according to claim 1 is characterized in that: The fitting circle where the connecting steel bar is located is cocentric with the fitting circle corresponding to the bolt hole on the conical structure and is located inside the fitting circle.

3. The inspection well and drainage pipe connection structure based on rapid assembly construction according to claim 1 is characterized in that: A rubber sealing gasket is arranged at the mounting recess between the first connecting end and the inspection well.

4. The inspection well and drainage pipe connection structure based on rapid assembly construction according to claim 1 is characterized in that: Cover the exposed parts of all bolts and nuts with concrete caps.

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