CN202401539U

CN202401539U - Pressure-bearing standpipe inspection hole

Info

Publication number: CN202401539U
Application number: CN2011205542198U
Authority: CN
Inventors: 钱功海
Original assignee: SHAOXING TONGZHENG PLASTIC PIPE CO Ltd
Current assignee: ZHEJIANG TONGZHENG PIPE TECHNOLOGY CO., LTD.
Priority date: 2011-12-27
Filing date: 2011-12-27
Publication date: 2012-08-29
Anticipated expiration: 2021-12-27

Abstract

The utility model mainly discloses a pressure-bearing standpipe inspection hole. The pressure-bearing standpipe inspection hole comprises a water drainage standpipe and an inspection window formed on the water drainage standpipe. The pressure-bearing standpipe inspection hole also comprises an inner cover, wherein a circle of ring-shaped step surface which protrudes inwards is arranged on the inner wall of the inspection window; a bearing platform is arranged on the inner end face of the inner cover and is matched with the step surface; a gasket is sleeved on the bearing platform; the outer wall of the inner cover is connected with the inner wall of the inspection window; and the gasket is tightly clamped between the step surface and the inner cover. The pressure-bearing standpipe inspection hole solves the problem that the inspection hole of the current water drainage system cannot bear a high-strength water pressure formed by water impact in a high-rise building; and the pressure-bearing standpipe inspection hole is simple in structure and has high pressure resistance.

Description

A kind of pressure-bearing type standpipe inspection hole

Technical field

The utility model relates to the drainage pipe technical field, and is special relevant with a kind of pressure-bearing type standpipe inspection hole.

Background technology

In the existing drainage system, to the maintenance of gutter one of problem that institute must consideration in the Drainage Design.At present architectural drainage system inspection hole commonly used generally all is to offer the mouth of pipe at the gutter sidewall, on the mouth of pipe, is equipped with an end cap seal.When soil stack has obstruction or other situation to check, as long as open end cap.

In the not high building-drainage system of traditional multilayer or floor; End cap is enough to bear the hydraulic pressure in the soil stack, but in the present house building, high-story house is more and more universal; End cap in the routine inspection mouth can't bear the impact of long-time high-strength hydraulic pressure, and causes the damage of breaking easily.

In order to address the above problem, the inventor designs a kind of pressure-bearing type standpipe inspection hole, and this case produces thus.

The utility model content

The main purpose of the utility model provides a kind of pressure-bearing type standpipe inspection hole, solves the problem that present drainage system inspection hole can't bear the high-strength hydraulic pressure that water impact forms in the highrise building, and simple in structure, crushing resistance is good.

In order to achieve the above object, the utility model is realized through following technical scheme:

A kind of pressure-bearing type standpipe inspection hole comprises soil stack, on soil stack, offers inspection; Also comprise inner cap in addition; Inwall in inspection has an inwardly protruded circle annular table terrace, and the inner cap inner face is provided with a cushion cap and step surface matches, and gasket sleeve is on cushion cap; Be connected between interior cover outer wall and the inspection inwall, packing ring closely is installed between step surface and the inner cap.

Have on the described inspection inwall and have the symmetrical arc convex tendon of an opposing connection axis 180 degree at least; Interior cover outer wall has equally around the symmetrical arc fin of axis 180 degree; Insert in gap between the arc convex tendon of arc fin aligning radially adjoining, and inner cap rotation rear arc fin is resisted against arc convex tendon inner face and forms connection.

Described arc convex tendon is identical with the arc length of arc fin, and central angle is less than 90 degree.

Have many parallel arc convex tendons on described inspection inwall is axial.

The formation that caves inward of described inner cap, a side has cavity outwardly, has the handle that is used to hold rotation in the cavity.

Be provided with enclosing cover outside the described inner cap, said inspection outer wall has the connection external screw thread, and the enclosing cover inwall is provided with the connection internal thread, connects external screw thread and is connected internal thread and matches.

After adopting such scheme; The packing ring that not only has on the soil stack of the utility model seals, and forms with the inspection inwall at inner cap simultaneously to be connected, and the connection of dual structure can be born the water impact in the highrise building for a long time like this; Reduce inspection hole and damage the maintenance probability, save cost.

Description of drawings

Fig. 1 is the assembling sketch map of the utility model preferred embodiment one;

Fig. 2 is the utility model preferred embodiment one assembling back partial cutaway schematic;

Fig. 3 is the assembling sketch map of the utility model preferred embodiment two;

Fig. 4 is the utility model preferred embodiment two assembling back partial cutaway schematic.

The specific embodiment

In conjunction with accompanying drawing, preferred embodiment explains further details to the utility model.

Like Fig. 1, shown in Figure 2, the parts that are mainly concerned with comprise soil stack 1, packing ring 2, inner cap 3.

Soil stack 1 be the drainage system inspection hole common parts, model size material does not all receive the restriction of present embodiment.The mouth of pipe of a projection is set on soil stack 1 sidewall, is inspection 11.The mouth of pipe outer end caliber of inspection 11 forms the step surface 12 of the annular of a projection like this greater than inner caliber on the inwall of inspection 11.

Sidewall in inspection 11 step surfaces 12 outer ends is provided with the symmetrical arc convex tendon 13 of two opposing connection axis, 180 degree, (wherein not looking out among the side figure) as shown in Figure 1, the arc convex tendon 13 parallel layings in the same side.The central angle of arc convex tendon 13 selects 60～85 degree scopes comparatively suitable less than 90 degree.

Inner cap 3 is for to be embedded in the lid on the inspection 11, and inner cap 3 is a circular body that caves inward, and at cavity 33 of side formation outwardly, the inner face of a side forms a cushion cap 31 inwardly, and cushion cap 31 just matches with the step surface shape.Cover is put packing ring 2 on the cushion cap 31.When assembling, packing ring 2 tightly is resisted against on the step surface 12 through the pressure of inner cap 3, forms sealing.

The outer wall of inner cap 3 is provided with equally two pairs of arc fins 32 around axis 180 degree symmetries, equally also laterally arranging of two arc fins 32 of the same side.The central angle of arc fin 32 selects 60～85 degree scopes comparatively suitable less than 90 degree.The central angle of arc convex tendon 13 and arc fin 32 is an equal angles in the present embodiment.

For easy to use, a transverse beam body is set as handle 34 in the cavity 33 of inner cap 3, grasp rotation during handled easily.

When assembling, at first packing ring 2 is enclosed within on the cushion cap 31, then with inserting in the space between the 32 aligning arc convex tendons 13 of the arc fin on the inner cap 3; Then turn an angle; Make arc fin 32 be inserted between the arc convex tendon 13, receive keeping out of arc convex tendon 13, form closely connection.This moment, packing ring 2 tightly was clipped between step surface 12 and the inner cap 3.The utility model possesses excellent sealing property through packing ring 2, can effectively be connected through the assembling of arc fin 32 simultaneously with arc convex tendon 13, and the water impact that highrise building is born in realization, crushing resistance is high.

And for example Fig. 3, shown in Figure 4 is the utility model embodiment two, in this embodiment; Except the structure of above-mentioned soil stack 1, packing ring 2, inner cap 3; The outside of inner cap 3 is set up an enclosing cover 4 in addition again, and the inspection 11 of enclosing cover 4 and soil stack 1 has promptly been attacked connection external screw thread 14 at inspection 11 outer walls through being threaded; Be provided with connection internal thread 41 at the enclosing cover inwall, both are rotated with by screw thread.In this embodiment two, both connections make inspection 11 form multiple-sealed structure, have strengthened the impact capacity of the anti-current in the inspection hole, are applicable in the present all kinds of highrise building drainage system.

The foregoing description only be used to explain inventive concept of the utility model, but not to the qualification of the utility model rights protection allly utilizes this design that the utility model is carried out the change of unsubstantiality, all should fall into the protection domain of the utility model.

Claims

1. a pressure-bearing type standpipe inspection hole comprises soil stack, on soil stack, offers inspection; It is characterized in that: also comprise inner cap; Inwall in inspection has an inwardly protruded circle annular table terrace, and the inner cap inner face is provided with a cushion cap and step surface matches, and gasket sleeve is on cushion cap; Be connected between interior cover outer wall and the inspection inwall, packing ring closely is installed between step surface and the inner cap.

2. a kind of pressure-bearing type standpipe inspection hole as claimed in claim 1; It is characterized in that: have on the described inspection inwall and have the symmetrical arc convex tendon of an opposing connection axis 180 degree at least; Interior cover outer wall has equally around the symmetrical arc fin of axis 180 degree; Insert in gap between the arc convex tendon of arc fin aligning radially adjoining, and inner cap rotation rear arc fin is resisted against arc convex tendon inner face and forms connection.

3. a kind of pressure-bearing type standpipe inspection hole as claimed in claim 2, it is characterized in that: described arc convex tendon is identical with the arc length of arc fin, and central angle is less than 90 degree.

4. like claim 2 or 3 described a kind of pressure-bearing type standpipe inspection holes, it is characterized in that: have many parallel arc convex tendons on described inspection inwall is axial.

5. a kind of pressure-bearing type standpipe inspection hole as claimed in claim 1 is characterized in that: the formation that caves inward of described inner cap, a side has cavity outwardly, has the handle that is used to hold rotation in the cavity.

6. a kind of pressure-bearing type standpipe inspection hole as claimed in claim 1; It is characterized in that: be provided with enclosing cover outside the described inner cap; Said inspection outer wall has the connection external screw thread, and the enclosing cover inwall is provided with the connection internal thread, connects external screw thread and is connected internal thread and matches.