阅读说明：本技术 一种检查井柔性接口结构 (A kind of inspection shaft flexible interface structure ) 是由 郭立军 于 2019-08-23 设计创作，主要内容包括：本发明涉及一种检查井柔性接口结构,其包括位于预留孔上的承口以及排水管上的插口,所述承口包括一倾斜面,所述插口端部开设一圈凸缘,凸缘上套设一圈第一密封圈,插口与承口插接时,第一密封圈与所述倾斜面抵触。本发明具有提高承口与插口之间密封性的效果。(The present invention relates to a kind of inspection shaft flexible interface structures, it includes the socket on the bellmouth and drainpipe on preformed hole, the bellmouth includes an inclined surface, the socket end opens up a circle flange, first sealing ring of circle is arranged on flange, when socket and bellmouth grafting, the first sealing ring and the inclined surface are contradicted.The present invention has the effect of improving leakproofness between bellmouth and socket.)

1. a kind of inspection shaft flexible interface structure, including inserting on the bellmouth (4) and drainpipe (3) on preformed hole (2) Mouth (31), which is characterized in that the bellmouth (4) includes an inclined surface (41), and socket (31) end opens up a circle flange (311), when being arranged first sealing ring of circle (312), socket (31) and bellmouth (4) grafting on flange (311), the first sealing ring (312) it is contradicted with the inclined surface (41).

2. a kind of inspection shaft flexible interface structure according to claim 1, which is characterized in that set on the inclined surface (41) The card slot (44) for thering is a circle to extend perpendicular to bellmouth (4) axis direction, the socket (31) and when bellmouth (4) grafting, described the One sealing ring (312) and the card slot (44) are clamped.

3. a kind of inspection shaft flexible interface structure according to claim 2, which is characterized in that flange (311) side wall Equipped with inclination compressive plane (3111) corresponding with the inclined surface (41), when the socket (31) is with the bellmouth (4) grafting, incline Oblique compressive plane (3111) and inclined surface (41) contradict.

4. a kind of inspection shaft flexible interface structure according to claim 1, which is characterized in that first sealing ring (312) section is circle, and the inclined surface (41) is equipped with the extruding slot of arcuation, and the socket (31) and the bellmouth (4) are inserted When connecing, the first sealing ring (312) and extruding slot are contradicted.

5. a kind of inspection shaft flexible interface structure according to claim 1, which is characterized in that the entrance of the bellmouth (4) Place is equipped with expands bigbore flared section (43) outward.

6. a kind of inspection shaft flexible interface structure according to claim 5, which is characterized in that socket (31) side wall is set There is a circle arc groove (313), is connected with the second sealing ring (32) in arc groove (313), the socket (31) and the bellmouth (4) When grafting, the second sealing ring (32) and flared section (43) are contradicted.

7. a kind of inspection shaft flexible interface structure according to claim 6, which is characterized in that flared section (43) setting Have arcuation second squeezes slot (46), when the socket (31) is with the bellmouth (4) grafting, second sealing ring (32) and institute State the conflict of the second extruding slot (46).

Technical field

The present invention relates to the technical fields of inspection shaft, more particularly, to a kind of inspection shaft flexible interface structure.

Background technique

Inspection shaft is used in buried plastics pipe 3 in one residential (residential area, public building area, plant area etc.) range Outer diameter is not more than 6m no more than 800mm, the depth of burying, is generally located in 3 intersection of drainpipe, turning, caliber or the gradient and changes At change, at drop etc., the well shape for the ease of inspecting periodically, cleaning and dredge or the cement of down-hole operation inspection pours is constructed Object.

As shown in Figure 1, the well room side of existing inspection shaft 1 is equipped with preformed hole 2, preformed hole 2 is existing for installing drainpipe Have in technology by the way that drainpipe to be inserted into preformed hole 2, water then is smeared into the gap between the nozzle of drainpipe and preformed hole 2 Cement mortar is fixed and seals.

There are defects below for such interface structure: the leakproofness of cement mortar is general, may occur over time dry The problem of dry cracking, construction quality are poor.

Summary of the invention

The object of the present invention is to provide a kind of inspection shaft flexible interface structures, have the effect of good airproof performance.

Foregoing invention purpose of the invention has the technical scheme that a kind of inspection shaft flexible interface knot Structure, including the socket on the bellmouth and drainpipe on preformed hole, the bellmouth includes an inclined surface, the socket end A circle flange is opened up, when being arranged first sealing ring of circle, socket and bellmouth grafting on flange, the first sealing ring and the inclined surface It contradicts.

By using above-mentioned technical proposal, in bellmouth and grafting grafting, the first sealing ring is by bellmouth inclined surface and inserts Extrusion deformation between mouthful, is filled sealing for gap between the two, and compared to cement mortar, sealing ring sealing is not easy out It splits, sealing performance is more preferable.And convenient and quick construction can greatly improve working efficiency, while can dismantle, and carry out repeating to make With.

The present invention is further arranged to: the inclined surface is equipped with the card slot that a circle extends perpendicular to socket axis direction, When the socket and bellmouth grafting, first sealing ring and the card slot are clamped.

By using above-mentioned technical proposal, card slot can allow clamping between the first sealing ring and bellmouth, the tightness of installation More preferably.

The present invention is further arranged to: the flange side wall is equipped with inclination compressive plane corresponding with the inclined surface, described When socket and the bellmouth grafting, inclination compressive plane and inclined surface are contradicted.

By using above-mentioned technical proposal, the gap between socket and inclined surface can be filled by tilting compressive plane, to insert Connect more firm, better tightness.

The present invention is further arranged to: the first sealing ring cross-section is circle, and the inclined surface is equipped with squeezing for arcuation When indent, the socket and the bellmouth grafting, the first sealing ring and extruding slot are contradicted.

By using above-mentioned technical proposal, the extruding slot of arcuation can be contacted the line between inclined surface and the first sealing ring Become face contact, to increase contact area and forced area, reduces the gap between the first sealing ring and inclined surface, improve and insert Compactness and leakproofness when connecing.

The present invention is further arranged to: the inlet of the bellmouth is equipped with expands bigbore flared section outward.

By using above-mentioned technical proposal, flared section can play guiding role, in socket grafting, if not alignment completely The parallel-segment of bellmouth can first contact flared section, and then slide into parallel-segment.

The present invention is further arranged to: the socket side wall is equipped with a circle arc groove, is connected with the second sealing in arc groove When circle, the socket and the bellmouth grafting, the second sealing ring and flared section are contradicted.

By using above-mentioned technical proposal, the second sealing ring can play the effect of dual-seal together with the first sealing ring Fruit, to increase sealing performance.

The present invention is further arranged to: the flared section is provided with the second extruding slot of arcuation, and the socket is held with described When mouth grafting, second sealing ring and described second squeezes slot conflict.

By using above-mentioned technical proposal, the second extruding slot can equally play the effect as the first extruding slot, can To increase contact area and forced area, reduce gap, enhances leakproofness.

In conclusion advantageous effects of the invention are as follows:

1. the first sealing ring and the second sealing ring significantly increase leakproofness when bellmouth and socket grafting；

2. it is even closer that the first extruding slot, the second extruding slot and card slot obtain grafting；

3. it is simple and fast when grafting, it improves work efficiency；

4. socket can be dismantled, so as to drainpipe and inspection shaft reuse.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of background technique.

Fig. 2 is the schematic diagram that bellmouth structure is embodied in embodiment one.

Fig. 3 is the structural schematic diagram of embodiment one.

Fig. 4 is the schematic diagram that notch is embodied in embodiment two.

Fig. 5 is the structural schematic diagram of embodiment two.

Fig. 6 is the schematic diagram that inclination compressive plane structure is embodied in embodiment three.

Fig. 7 is the structural schematic diagram of embodiment three.

Fig. 8 is the structural schematic diagram of example IV.

Fig. 9 is that the first schematic diagram for squeezing slot structure is embodied in embodiment five.

Figure 10 is the structural schematic diagram of embodiment five.

Figure 11 is the schematic diagram that curved slot arrangement is embodied in embodiment six.

Figure 12 is the structural schematic diagram of embodiment six.

Figure 13 is the structural schematic diagram of embodiment seven.

In figure, 1, inspection shaft；2, preformed hole；3, drainpipe；31, socket；311, flange；3111, compressive plane is tilted；312, First sealing ring；313, arc groove；32, the second sealing ring；4, bellmouth；41, inclined surface；42, parallel-segment；43, flared section；44, Card slot；45, first slot is squeezed；46, second slot is squeezed.

Specific embodiment

Below in conjunction with attached drawing, invention is further described in detail.