CN202530553U

CN202530553U - Inspection well

Info

Publication number: CN202530553U
Application number: CN2012201627558U
Authority: CN
Inventors: 闫峰; 赵志航
Original assignee: HARBIN JINYANGGUANG PIPE INDUSTRY Co Ltd
Current assignee: HARBIN JINYANGGUANG PIPE INDUSTRY Co Ltd
Priority date: 2012-04-17
Filing date: 2012-04-17
Publication date: 2012-11-14
Anticipated expiration: 2022-04-17

Abstract

The utility model relates to an inspection well, in particular to an inspection well for maintaining pipelines and removing sludge, belongs to the field of municipal engineering, and solves the problem that the conventional inspection well has low compressive strength, easily leaks and has high construction difficulty. The inspection well comprises a well cover and a substrate, wherein the well cover is embedded in the substrate; the middle of the substrate is provided with a wellhead; the inspection well also comprises a retainer ring, a shaft and an adapting pipe; the shaft is a corrugated pipe made of metal; the adapting pipe is a corrugated pipe made of metal; the inner and outer walls of the shaft and the inner and outer walls of the adapting pipe are provided with zinc coatings; the retainer ring is sleeved on the shaft; the substrate is arranged on the upper end face of the retainer ring; the wellhead and the shaft are coaxially arranged; the pipe wall of the adapting pipe is provided with a connecting hole; the lower end of the shaft is arranged in the connecting hole of the adapting pipe; the shaft and the adapting pipe are integrally formed; and the pipe orifices at two ends of the adapting pipe are respectively detachably connected with an underground pre-embedded pipeline. The inspection well is used for blow-off lines in municipal engineering.

Description

A kind of manhole

Technical field

The utility model relates to a kind of manhole, particularly a kind ofly is used for service conduits, removes the manhole that mud is used, and belongs to the municipal engineering field.

Background technology

In the draining of municipal engineering, in the blow-off line system, manhole is a kind of important equipment, in inspection pipeline, dredging pipeline, has important effect; But, existing manhole lay bricks well or the plastic wells of adopting more, the in use easy effluent seepage of the well of laying bricks causes the underground water secondary pollution; Be prone to cave under the heavy load effect, compressive strength is lower, well damage; And difficulty of construction is bigger, and quality stability is relatively poor; Plastic well compressive strength is lower, causes reduce application life.

The utility model content

The purpose of the utility model is lower for solving existing manhole compressive strength, the problem that easy to leak and difficulty of construction are bigger, and then a kind of manhole is provided.

The utility model is to address the above problem the technical scheme of taking to be: a kind of manhole of the utility model comprises well lid and pedestal, and well lid embeds on the pedestal, and the middle part of pedestal is provided with well head; It also comprises back-up ring, pit shaft and adapting pipe, and described pit shaft is by metal bellows, and described adapting pipe is by metal bellows; All have zinc coat on the inside and outside wall of pit shaft and on the inside and outside wall of adapting pipe, pit shaft vertically is provided with, and shield ring sleeve is located on the pit shaft; Pedestal is arranged on the upper surface of back-up ring; The coaxial setting of well head and pit shaft has set connecting hole on the tube wall of adapting pipe, and the lower end of pit shaft is arranged on the connecting hole of adapting pipe; Pit shaft and adapting pipe are made into integration, and the two ends mouth of pipe of adapting pipe removably connects with the underground preburied pipeline of establishing respectively.

The beneficial effect of the utility model is: pit shaft has improved the compressive strength of manhole, through facts have proved for being by metal bellows by metal bellows and adapting pipe in the manhole of (1), the utility model; The compressive strength of the manhole of the utility model is 1.5 times of cement manhole compressive strength of laying bricks, and is 3 times of plastic inspection well compressive strength, and the utility model also has certain flexibility simultaneously; Under 5% distortion, still have the compressive resistance of 16800 kilograms/m; The utility model is in light weight, long service life, and the utility model is at different soils; Test in the different sewage, reach application life more than 50 years; (2), the adapting pipe and the pit shaft of the utility model be integral structure, avoided effluent seepage effectively, having solved infiltration and having caused the underground water secondary pollution problem; (3), the shield ring sleeve of the utility model is located on the pit shaft, with the pit shaft split, bury on the thing (like three slags) what back-up ring fixed on the ground during use; Bearing base on the back-up ring (cover plate); Load weight acts directly on the pedestal (cover plate), is delivered to back-up ring reaching ground burying on the thing in (like three slags) through pedestal (cover plate), has avoided pit shaft directly stressed; Significantly reduce the direct destruction problem of heavy load to pit shaft, manhole is difficult for caving under the heavy load effect; (4), the zinc-plated amount of the zinc coat of corrugated metal pit shaft is 600 gram/m ²(internal face and outside wall surface are simultaneously zinc-plated), the zinc-plated amount of the zinc coat of corrugated metal adapting pipe is 600 gram/m ²(internal face and outside wall surface are simultaneously zinc-plated) improved antiseptic property effectively, guaranteed that manhole buries corrosion resistant problem behind the ground, and simultaneously, be 2 times of pipe of cement application life; (5), the utility model is simple in structure, easy to use, speed of application is fast, fabrication cycle is short, can adopt batch production production, is fit to the municipal engineering blowdown and uses, especially being fit to underground preburied pipeline is the use that is connected of corrugated conduit.

Description of drawings

Fig. 1 is the overall structure front view of the utility model, and Fig. 2 is that the manhole of the utility model is installed in the duty overall structure sketch map when underground.

The specific embodiment

The specific embodiment one: combine Fig. 1 and Fig. 2 that this embodiment is described, a kind of manhole of this embodiment comprises well lid 1 and pedestal 2, and well lid 1 embeds on the pedestal 2; The middle part of pedestal 2 is provided with well head 2-1, and it also comprises back-up ring 3, pit shaft 4 and adapting pipe 6, and described pit shaft 4 is by metal bellows; Described adapting pipe 6 is by metal bellows; All have zinc coat on the inside and outside wall of pit shaft 4 and on the inside and outside wall of adapting pipe 6, pit shaft 4 vertically is provided with, and back-up ring 3 is set on the pit shaft 4; Pedestal 2 is arranged on the upper surface of back-up ring 3; Well head 2-1 and pit shaft 4 coaxial settings have set connecting hole 6-1 on the tube wall of adapting pipe 6, the lower end of pit shaft 4 is arranged on the connecting hole 6-1 of adapting pipe 6; Pit shaft 4 is made into integration with adapting pipe 6, and the two ends mouth of pipe 6-2 of adapting pipe 6 removably connects with the underground preburied pipeline of establishing 10 respectively.

The two ends mouth of pipe 6-2 of the adapting pipe 6 of this embodiment can removably connect through clip 9 and the underground preburied pipeline of establishing 10 respectively.Pit shaft of this embodiment and adapting pipe can adopt the seaming mode to process after suppressing wave mode by hot-dip galvanizing sheet steel respectively, process one through welding then.

The specific embodiment two: combine Fig. 1 that this embodiment is described, the described manhole of this embodiment also comprises foot of ladder 5, and the inside wall of pit shaft 4 is provided with foot of ladder 5.So be provided with, easy to use, be convenient to inspection and dredging pipeline, construction operation is convenient.Other is identical with the specific embodiment one or two.

The specific embodiment three: combine Fig. 1 that this embodiment is described, the section configuration of the connecting hole 6-1 on the described adapting pipe 6 of this embodiment is a triangle.So be provided with, drainage flow property is good, and resistance is little, meets design requirement and actual needs, and the section configuration of this embodiment is that the junction of leg-of-mutton connecting hole and pit shaft has transition arc, and other is identical with the specific embodiment one or two.

The course of work

The course of work of the utility model is described in conjunction with Fig. 1 and Fig. 2; When the manhole of the utility model uses; The adapting pipe 6 that integral type is processed and the part pipeline section of pit shaft 4 place backfill below 11, the two ends mouth of pipe 6-2 of adapting pipe 6 are connected through clip 9 with the underground pipeline of burying underground 10 respectively, with being sheathed on burying on the thing 8 (compound of flyash, hydrated lime and rock ballast) that back-up ring 3 on the pit shaft 4 fixes on the ground; Bearing base 2 on the back-up ring 3; Pedestal 2 places buries thing 8 (compound of flyash, hydrated lime and rock ballast), and well lid 1 is carried in the top of pedestal 2, in the well lid 1 embedding road surface 7; Inspection is during pipeline, gets in the pit shafts 4 along foot of ladder 5 through well head 2-1 and carries out construction operation.

Claims

1. manhole, it comprises well lid (1) and pedestal (2), well lid (1) embeds on the pedestal (2); The middle part of pedestal (2) is provided with well head (2-1), it is characterized in that: it also comprises back-up ring (3), pit shaft (4) and adapting pipe (6), and described pit shaft (4) is by metal bellows; Described adapting pipe (6) is by metal bellows; All have zinc coat on the inside and outside wall of pit shaft (4) and on the inside and outside wall of adapting pipe (6), pit shaft (4) is vertical to be provided with, and back-up ring (3) is set on the pit shaft (4); Pedestal (2) is arranged on the upper surface of back-up ring (3); Well head (2-1) and the coaxial setting of pit shaft (4) have set connecting hole (6-1) on the tube wall of adapting pipe (6), the lower end of pit shaft (4) is arranged on the connecting hole (6-1) of adapting pipe (6); Pit shaft (4) and adapting pipe (6) are made into integration, and the two ends mouth of pipe (6-2) of adapting pipe (6) removably connects with the underground preburied pipeline of establishing (10) respectively.

2. a kind of manhole according to claim 1 is characterized in that: it also comprises foot of ladder (5), and the inside wall of pit shaft (4) is provided with foot of ladder (5).

3. a kind of manhole according to claim 1 and 2 is characterized in that: the section configuration of the connecting hole (6-1) on the described adapting pipe (6) is a triangle.