CN201459762U

CN201459762U - Inspection well seat

Info

Publication number: CN201459762U
Application number: CN2009201234595U
Authority: CN
Inventors: 叶后富
Original assignee: ZHEJIANG SHUANGHUAN PLASTIC VALVE ENTERPRISE Ltd
Current assignee: Zhejiang Tianjing Plastic Industry Co., Ltd.
Priority date: 2009-06-25
Filing date: 2009-06-25
Publication date: 2010-05-12
Anticipated expiration: 2019-06-25

Abstract

The utility model discloses an inspection well seat, which relates to the field of pipeline fittings. The prior art fails to give consideration to both the positioning and sealing of a pipeline and a well casing. The inspection well seat adopts an integrated structure comprising a base, a vertical wellhole socket pipe extending from the base, and at least a transverse pipeline socket pipe, wherein the wellhole socket pipe is communicated with the pipeline socket pipe via the inner chamber of the base, at least one of the wellhole socket pipe and the pipeline socket pipe is provided with a positioning step and a sealing step that face the outer side, and the positioning step is positioned on the inner side of the sealing step. The utility model takes both the positioning and sealing of the pipeline and the well casing into account, that is, when the positioning step ensures that the pipeline or/and the well casing are installed in the required places, a sealing structure (e.g. seal ring) can be matched with the sealing step in a sealed manner.

Description

Manhole well seat

Technical field

The utility model relates to the plumbing fitting field, specifically is the manhole well seat in the underground piping system.

Background technology

At present, underground pipeline such as sewer pipe, industrial and mineral sewage vent line, underground communication conduit, cable are laid pipeline, irrigation conduit etc., owing to be laid in underground, be difficult to they are observed, therefore when laying various underground pipeline, become technical measures commonly used, so that after the underground pipeline laying is finished, in time underground pipeline is checked by manhole from ground to the manhole (claiming piping shaft, inspection shaft again) of underground construction connection underground pipeline.

Mostly manhole in the past is to build to ground formation well body with brick or cement, constitutes at well body upper end cover one well lid again, has opening at the well body side surface and is used for the pipeline connection.The manhole long construction period of this spline structure is easy to generate the shrub weeds, and mediation inconvenience easily makes current not smooth, and there is serious seepage in the connection place of pipeline and well body, can cause the secondary pollution of surrounding environment.

It in addition, prefabricated cement well is arranged also, though can dwindle the pipeline construction cycle, but still there is the problem of above-mentioned others in it, and, when it is in the pipeline and with after pipeline connects, since its height can not adjust, the well lid that covers generally can not with ground maintenance level.

In order to overcome the defective of above-mentioned manhole, existing patented technology scheme such as ZL200510040424.1 patent of invention disclose a kind of " combined pipe fitting inspection well ", the ZL200310112674.2 patent of invention discloses a kind of " pipe type manhole ", though such manhole manhole more in the past is progressive to some extent technically, but still there is weak point and haves much room for improvement:

1, for fear of leakage, the sealing that guarantees pipeline, pit shaft and manhole junction is crucial, and as the pipeline and the pit shaft of prefabricated component, the hermetically-sealed construction of itself and manhole designs according to specification, if pipeline, pit shaft can not be in place, then realize accurately cooperating, thereby can not guarantee sealing effectiveness, and the manhole of existing patent scheme is not taken into account the location and the sealing of pipeline and pit shaft simultaneously about hermetically-sealed construction and element (as sealed step, sealing ring etc.).

2, when building-site is installed, be starting point normally with the well seat, according to the mode of pegging graft (grafting is that position that the bore diameter is less such as pipeline are or/and the small end of pit shaft is inserted into the bigger birdsmouth of bore, pipeline or/and realize ways of connecting in the big end of pit shaft) pipeline, pit shaft are linked together piecemeal, therefore, the complexity of grafting operation directly influences constructor's labour intensity, does not provide the structure of being convenient to peg graft in the prior art.

3, the manhole position of Que Dinging is to guarantee pipeline, pit shaft and the good connection basis of well seat, but the well seat of prior art lacks the structure of necessary stable placement.

4, because the well seat is embedded in undergroundly, bearing pressure, but the well seat of prior art lacks the technical measures of himself intensity of necessary increase from a plurality of orientation.

The utility model content

The technical problem that the utility model at first will solve and the technical assignment of proposition are to overcome the location of not taking into account pipeline and pit shaft of prior art existence and the defective of sealing, a kind of manhole well seat is provided, and further improve its grafting when construction connects on this basis, place operation and self intensity, for this reason, the utility model is by the following technical solutions:

Manhole well seat, it is the vertical hoistway birdsmouth comprising base portion, extend out from described base portion and the integral structure of the pipeline birdsmouth that at least one is horizontal, described hoistway birdsmouth is communicated with by the base portion inner chamber with the pipeline birdsmouth, it is characterized in that: at least one birdsmouth has positioning step and the sealed step towards the outside in described hoistway birdsmouth and the pipeline birdsmouth, and described positioning step is positioned at the inboard of sealed step.

This technical scheme, when connecting by positioning step to pipeline or/and location, the inner of pit shaft, determine pipeline thus or/and pit shaft whether relatively the well seat be in place, therefore, prefabricated component according to pipeline that manufactures and designs and pit shaft can easily be installed in place when mounted, thereby determining pipeline by positioning step or/and when pit shaft is in place, guaranteeing that hermetically-sealed construction (as sealing ring) can form with sealed step be sealed and matched, taking into account simultaneously pipeline or/and the location of pit shaft and sealing.

As the further of technique scheme improved and replenish, the utility model also comprises following additional technical characterictic:

Be provided with guiding surface in abutting connection with described sealed step, and this guiding surface is positioned at the outside of described sealed step.This guiding surface at the grafting pipeline or/and during pit shaft, can be to pipeline or/and the pit shaft channeling conduct, thereby can be smoothly with pipeline or/and pit shaft inserts corresponding birdsmouth.

Described positioning step, sealed step are from the outwards enlarged formation successively of described base portion.Such structure can make the well seat of wall thickness unanimity, by the intensity and the non-deformability of step increase well seat, and with respect to the inconsistent well seat of different parts wall thickness, can also economical with materials.

The position of the corresponding described hoistway birdsmouth of the downside of described base portion is provided with cup dolly.This base can be placed the well seat and be located when construction reposefully, avoids installing dislocation.

Be provided with plurality of strengthening ribs between the outer wall of described positioning step and the described base portion.Increase the intensity and the non-deformability of well seat with this.

The diameter of described hoistway birdsmouth is greater than the diameter of described pipeline birdsmouth.Guarantee the matching of hoistway birdsmouth and pipeline birdsmouth thus.

The beneficial effects of the utility model are:

1, taken into account the location and the sealing of pipeline and pit shaft simultaneously, promptly determined pipeline by positioning step or/and when pit shaft is in place, guaranteed that hermetically-sealed construction (as sealing ring) can form with sealed step be sealed and matched.

2, at the grafting pipeline or/and during pit shaft, guiding surface can be to pipeline or/and the pit shaft channeling conduct, thereby can be smoothly with pipeline or/and pit shaft inserts corresponding birdsmouth, reduce constructor's labour intensity.

3, ad hoc understructure can be placed the well seat and be located when construction reposefully, avoids installing dislocation.

4, increase the intensity and the non-deformability of well seat by reinforcing rib and ledge structure, with respect to the inconsistent well seat of different parts wall thickness, can also economical with materials.

Description of drawings

Fig. 1 is the cross-sectional view of a kind of well holder structure of the present utility model.

Fig. 2 is the schematic perspective view of the well seat forward of structure shown in Figure 1 when placing.

Schematic perspective view when Fig. 3 oppositely places for the well seat of structure shown in Figure 1.

Number in the figure explanation: 1-base portion, 2-hoistway birdsmouth, 3-pipeline birdsmouth, 4-positioning step, 5-sealed step, 6-guiding surface, 7-cup dolly, 8-reinforcing rib, the diameter of D1-hoistway birdsmouth, the diameter of D2-pipeline birdsmouth.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is described further.

As shown in Figure 1, manhole well seat of the present utility model in order to take into account simultaneously to pipeline or/and the location of pit shaft with the sealing basic inventive concept of adopting be: it is the vertical hoistway birdsmouth 2 comprising base portion 1, extend out from base portion 1 and the integral structure of the pipeline birdsmouth 3 that at least one is horizontal, hoistway birdsmouth 2 is communicated with by base portion 1 inner chamber with pipeline birdsmouth 3, especially: at least one birdsmouth has positioning step 4 and the sealed step 5 towards the outside in hoistway birdsmouth 2 and the pipeline birdsmouth 3, and positioning step 4 is positioned at the inboard of sealed step 5.This technical scheme, horizontal pipeline birdsmouth 3 can be according to the form of structure (Figure 1 shows that the form of structure of " leading directly to " pipe fitting) that is similar to pipe fittings such as " leading directly to ", three links, " four-way ", on each pipeline birdsmouth, look into piecemeal and take over the road and can form underground pipeline, and vertical hoistway birdsmouth 2 is used to connect pit shaft and forms and extend the hoistway on ground so that underground pipeline is observed.

Further, the technical characterictic that each section addressed below can selectively be applied to the described basic inventive concept of the present utility model of leading portion so that manhole well seat has more effect:

Contiguous seal step 5 is provided with guiding surface 6, and this guiding surface 6 is positioned at the outside of sealed step 5.

Positioning step 4, sealed step 5 are from outwards enlarged formation successively of base portion 1.

The position of the corresponding hoistway birdsmouth 2 of the downside of base portion 1 is provided with cup dolly 7.

Be provided with plurality of strengthening ribs 8 between the outer wall of positioning step 4 and the base portion 1.

The diameter D1 of hoistway birdsmouth 2 is greater than the diameter D2 of pipeline birdsmouth 3.

The effect of technique scheme and each section technical characterictic and advantage have been stated clearly and can have been embodied in use at utility model content part above, do not repeat them here.

The technical characterictic that above-mentioned each section addressed all is applied to basic inventive concept of the present utility model and promptly obtains a preferred embodiment, and Fig. 1,2,3 promptly is like this.Only the embodiment with basic inventive concept gained of the present utility model is a comparatively simple embodiment, and optionally the technical characterictic that above-mentioned each section addressed is applied to basic inventive concept of the present utility model and can obtains other embodiment, does not repeat them here.

Claims

1. manhole well seat, it is the vertical hoistway birdsmouth (2) comprising base portion (1), extend out from described base portion (1) and the integral structure of the pipeline birdsmouth (3) that at least one is horizontal, described hoistway birdsmouth (2) is communicated with by base portion (1) inner chamber with pipeline birdsmouth (3), it is characterized in that: at least one birdsmouth has positioning step (4) and the sealed step (5) towards the outside in described hoistway birdsmouth (2) and the pipeline birdsmouth (3), and described positioning step (4) is positioned at the inboard of sealed step (5).

2. manhole well seat according to claim 1 it is characterized in that being provided with guiding surface (6) in abutting connection with described sealed step (5), and this guiding surface (6) is positioned at the outside of described sealed step (5).

3. manhole well seat according to claim 1 is characterized in that described positioning step (4), sealed step (5) are from outwards enlarged formation successively of described base portion (1).

4. manhole well seat according to claim 1 is characterized in that the position of the corresponding described hoistway birdsmouth of downside (2) of described base portion (1) is provided with cup dolly (7).

5. manhole well seat according to claim 1 is characterized in that being provided with plurality of strengthening ribs (8) between the outer wall of described positioning step (4) and the described base portion (1).

6. manhole well seat according to claim 1 is characterized in that the diameter (D2) of the diameter (D1) of described hoistway birdsmouth (2) greater than described pipeline birdsmouth (3).