CN201649126U

CN201649126U - Fixing structure for elastic seal ring for tubular by-pass bell and spigot of plastic inspection chamber

Info

Publication number: CN201649126U
Application number: CN2010201543182U
Authority: CN
Inventors: 张应忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-04-09
Filing date: 2010-04-09
Publication date: 2010-11-24
Anticipated expiration: 2020-04-09

Abstract

The utility model discloses a fixing structure for an elastic seal ring for a tubular by-pass bell and spigot of a plastic inspection chamber. The fixing structure is characterized in that the production cost can be lowered, and the reliability for fixing the elastic seal ring can be improved. The fixing structure for the elastic seal ring for the tubular by-pass bell and spigot of the plastic inspection chamber comprises the tubular by-pass bell and spigot, wherein, elastic sealing pieces are fixedly arranged at the tubular by-pass bell and spigot; extending bulges forming an integral structure together with the elastic sealing pieces are formed on the surfaces of the elastic sealing pieces; and the extending bulges are embedded in the pipe wall of the tubular by-pass bell and spigot. The extending bulges are embedded in the pipe wall of the tubular by-pass bell and spigot and also form a whole body together with the tubular by-pass bell and spigot when being formed, so that structural style for the fixed connection of the fixing structure can improve the production efficiency, the production cost can be lowered at the same time, and the reliability for fixing the elastic seal ring to a tubular by-pass can be improved; in addition, the structure of the fixing structure is simple, the leakproof reliability can be ensured effectively, and the fixing structure is suitable for being popularized and applied on a sealing structure of the plastic inspection chamber.

Description

Plastic inspection well tubulose bypass bell and spigot elastic seal ring fixed structure

Technical field

The utility model relates to a kind of elastic sealing structure, is specifically related to a kind of plastic inspection well tubulose bypass bell and spigot elastic seal ring fixed structure.

Background technology

At present, most international and domestic double-wall corrugated pipe and plastic inspection wells are connected to: place elastic seal ring in the double-wall corrugated pipe trough, manhole tubulose bypass bell and spigot is that straight tube is not with elastic seal ring.

Certainly, the structure that fixedly installs elastic seal ring on tubulose bypass bell and spigot is also arranged, and elastic seal ring is fixedly installed on the tubulose bypass bell and spigot is that one is the form of structure by mechanical connection, as elastic seal ring being fixedly connected via screw on the tubulose bypass bell and spigot, or elastic seal ring is fixedly attached on the tubulose bypass bell and spigot by the form of structure of buckle.This fixed form makes that all manufacturing cost is higher, and its complex structure has improved operating personnel's installation workload.

The utility model content

Technical problem to be solved in the utility model provides a kind of the reduction and manufactures cost and improve the fixedly plastic inspection well tubulose bypass bell and spigot elastic seal ring fixed structure of reliability of elastic seal ring.

The technical scheme that its technical problem that solves the utility model adopts is: plastic inspection well tubulose bypass bell and spigot elastic seal ring fixed structure, comprise the tubulose bypass bell and spigot that is positioned at the well body sidewall, the place is set with elastic sealing element at tubulose bypass bell and spigot, the elastic sealing element surface has the extension projection with the elastic sealing element integrative-structure, extends in the tube wall of projection embedding tubulose bypass bell and spigot.

Further be that the size of extending projection embedding tubulose bypass bell and spigot tube wall part increases gradually.

As a kind of preferred version wherein, described extension projection embeds in the tube wall of tubulose bypass bell and spigot from the external surface of tubulose bypass bell and spigot.

As another kind of preferred version, described extension projection embeds in the tube wall of tubulose bypass bell and spigot from the inner surface of tubulose bypass bell and spigot.

Further be that tubulose bypass bell and spigot and well body are structure as a whole.

Further be that aggregate erection is an one after the independent separately moulding of tubulose bypass bell and spigot and well body.

The beneficial effects of the utility model are: because extend in the tube wall that projection embeds tubulose bypass bell and spigot and when moulding and tubulose bypass bell and spigot one-body molded, make this fixedly connected form of structure to enhance productivity, reduce simultaneously and manufacture cost, the raising elastic seal ring is fixed on the reliability on the tubulose bypass, it is simple in structure, can reduce operating personnel's construction and installation workload, and can effectively guarantee its security against leakage, be adapted at applying on the hermetically-sealed construction of plastic inspection well.

Description of drawings

Fig. 1 is positioned at the structural representation of tubulose bypass bell and spigot external surface for elastic sealing element in the utility model;

Fig. 2 is positioned at the structural representation of tubulose bypass bell and spigot inner surface for elastic sealing element in the utility model;

Fig. 3 is the local enlarged diagram at A place among Fig. 2.

Be labeled as among the figure: well body 1, tubulose bypass bell and spigot 2, elastic sealing element 3, extension projection 4, double-wall corrugated pipe 5.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further specified.

As Fig. 1, Fig. 2 and shown in Figure 3, plastic inspection well tubulose bypass bell and spigot elastic seal ring fixed structure of the present utility model, comprise the tubulose bypass bell and spigot 2 that is positioned at well body 1 sidewall, 2 places are set with elastic sealing element 3 at tubulose bypass bell and spigot, elastic sealing element 3 surfaces have the extension projection 4 with elastic sealing element 3 integrative-structures, extend in the tube wall of projection 4 embedding tubulose bypass bell and spigots 2.When moulding tubulose bypass bell and spigot 2, elastic sealing element 3 is placed in the moulding form, make after 2 moulding of tubulose bypass bell and spigot, the extension projection 4 on elastic sealing element 3 surfaces is coated by the tube wall of tubulose bypass bell and spigot 2, thereby elastic sealing element 3 is embedded in the tube wall of tubulose bypass bell and spigot 2.This fixedly connected structure can be enhanced productivity, and reduces simultaneously and manufactures cost, and it is simple in structure, can reduce the construction and installation workload of pipe fitting.

In the above-described embodiment, in order to prevent that extending projection 4 comes off in the tube wall of tubulose bypass bell and spigot 2, the size of extending projection 4 embedding tubulose bypass bell and spigots 2 tube walls part increases gradually.Its structure like this, after extension projection 4 is coated by tubulose bypass bell and spigot 2, is extended projection 4 and just is sleeved on reliably in the tube wall of tubulose bypass bell and spigot 2 as shown in Figure 3, can not come off in the tube wall of tubulose bypass bell and spigot 2.As extend the shapes that projection 4 embeds tubulose bypass bell and spigots 2 tube walls part and can be T-shape, also can be Pear-Shaped, taper etc.

In the above embodiment, can embed in the tube wall of tubulose bypass bell and spigot 2 extending the external surface of projection 4 from tubulose bypass bell and spigot 2.As shown in Figure 1, at this moment, double-wall corrugated pipe 5 goes in the endoporus of double-wall corrugated pipe 52 grafting of tubulose bypass bell and spigot as bellmouth.Certainly, also can embed in the tube wall of tubulose bypass bell and spigot 2 extending the inner surface of projection 4 from tubulose bypass bell and spigot 2.As shown in Figure 2, at this moment, double-wall corrugated pipe 5 goes in the endoporus of tubulose bypass bell and spigot 2 double-wall corrugated pipe 5 grafting as socket.

In the above embodiment, tubulose bypass bell and spigot 2 can be structure as a whole with well body 1, promptly when the well body 1 of moulding plastics manhole, molds tubulose bypass bell and spigot 2 simultaneously.Certainly, tubulose bypass bell and spigot 2 and well body 1 also can independent separately moulding after aggregate erection be one, promptly adopt independently mould moulding respectively at tubulose bypass bell and spigot 2 and well body 1, fit together at last and get final product.

Claims

1. plastic inspection well tubulose bypass bell and spigot elastic seal ring fixed structure, comprise the tubulose bypass bell and spigot (2) that is positioned at well body (1) sidewall, locate to be set with elastic sealing element (3) at tubulose bypass bell and spigot (2), it is characterized in that: elastic sealing element (3) surface has the extension projection (4) with elastic sealing element (3) integrative-structure, extends in the tube wall of projection (4) embedding tubulose bypass bell and spigot (2).

2. plastic inspection well tubulose bypass bell and spigot elastic seal ring fixed structure as claimed in claim 1 is characterized in that: the size of extending projection (4) embedding tubulose bypass bell and spigot (2) tube wall part increases gradually.

3. plastic inspection well tubulose bypass bell and spigot elastic seal ring fixed structure as claimed in claim 2 is characterized in that: the described projection (4) of extending is in the tube wall of the external surface embedding tubulose bypass bell and spigot (2) of tubulose bypass bell and spigot (2).

4. plastic inspection well tubulose bypass bell and spigot elastic seal ring fixed structure as claimed in claim 2 is characterized in that: the described projection (4) of extending is in the tube wall of the inner surface embedding tubulose bypass bell and spigot (2) of tubulose bypass bell and spigot (2).

5. as claim 1,2,3 or 4 described plastic inspection well tubulose bypass bell and spigot elastic seal ring fixed structures, it is characterized in that: tubulose bypass bell and spigot (2) is structure as a whole with well body (1).

6. as claim 1,2,3 or 4 described plastic inspection well tubulose bypass bell and spigot elastic seal ring fixed structures, it is characterized in that: aggregate erection is an one after tubulose bypass bell and spigot (2) and the independent separately moulding of well body (1).