CN215330346U

CN215330346U - Sewage inspection well

Info

Publication number: CN215330346U
Application number: CN202121199743.8U
Authority: CN
Inventors: 陈龙; 罗勇
Original assignee: Guangdong Chengshi Construction Engineering Design Co ltd
Current assignee: Guangdong Chengshi Construction Engineering Design Co ltd
Priority date: 2021-06-01
Filing date: 2021-06-01
Publication date: 2021-12-28
Anticipated expiration: 2031-06-01

Abstract

The utility model discloses a sewage inspection well, which comprises a shaft and a well cover, wherein the transverse section of the shaft is square, a sewage discharge hole matched with a sewage discharge pipe is formed in the wall of the shaft, and the distance between two opposite inner walls of the shaft is equal to the diameter of the sewage discharge hole; the shaft is of a reinforced concrete structure, the shaft is provided with a reinforcing steel frame, and the reinforcing steel frame is provided with a vertical side surface part vertical to the bottom of the shaft; the upper end of the vertical side part is welded with a water stopping wing ring; the water stop wing ring comprises a welding part welded with the vertical side surface part, a sealing part opposite to the welding part and connecting parts respectively connecting the welding part and the sealing part; the well cover covers the sealing part of the water stop wing ring; the bottom of the shaft forms a chute which has a flow guiding function on the sewage. The utility model solves the problems that the shape of the transverse section of the inspection well is square, the size of the inner space of the shaft is the same as that of the pipeline, the size of the well body is reduced, and the well cover adopts a sealed well cover, so that the inspection well is isolated from the water flow of a ditch, and the sewage leakage is avoided.

Description

Sewage inspection well

Technical Field

The utility model relates to the field of inspection wells, in particular to a sewage inspection well.

Background

When sewage pipelines are laid in rural areas, the sewage pipelines are usually laid in ditches, the maximum distance between sewage inspection wells is 40 meters according to the 4.4.2DN200-400 th standard of design for outdoor drainage, and the sewage inspection wells can greatly reduce the water passing section of the ditches according to the conventional method for the sewage inspection wells. The distance between two relative wall of a well of sewage inspection shaft that set up when present pipeline lays the ditch is far greater than the diameter of sewage pipe, leads to longitudinal section's area great, makes the reduction of cross-sectional area, causes the ditch drainage unsmooth easily, and silt is piled up, appears blockking up.

SUMMERY OF THE UTILITY MODEL

The utility model aims to design a sewage inspection well to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a sewage inspection shaft, includes pit shaft and well lid, its characterized in that: the transverse section of the shaft is square, a sewage draining hole matched with a sewage draining pipe is formed in the wall of the shaft, and the distance between two opposite inner walls of the shaft is equal to the diameter of the sewage draining hole; the shaft is of a reinforced concrete structure, and is provided with a reinforcing steel frame, and the reinforcing steel frame is provided with a vertical side surface part vertical to the bottom of the shaft; the upper end of the vertical side part is welded with a water stopping wing ring; the water stop wing ring comprises a welding part welded with the vertical side surface part, a sealing part opposite to the welding part and connecting parts respectively connecting the welding part and the sealing part; the well cover covers the sealing part of the water stopping wing ring; the bottom of the well barrel forms a flow groove which has a flow guiding effect on sewage.

Further, the sealing portion with be equipped with between the well lid upper surface with well lid butt, lower surface with the sealing washer of sealing portion butt.

Furthermore, a first threaded hole is formed in the end face, facing the well lid, of the sealing part, a second threaded hole corresponding to the first threaded hole is formed in the well lid, and a through hole is formed in the sealing ring corresponding to the first threaded hole; when the shaft is sealed, screws are screwed to sequentially enter the second threaded hole, the sealing ring and the first threaded hole.

Furthermore, the outer peripheral surface of the connecting part is abutted against the inner wall of the shaft and is matched with the inner wall in shape.

Further, a gap is formed between the bottom end face of the sealing part and the top end face of the shaft.

Further, be equipped with the well lid handle on the well lid terminal surface up.

Furthermore, a gravel cushion layer is paved at the outer bottom of the shaft.

Further, the well lid adopts sealed stainless steel well lid.

The utility model has the beneficial effects that: compared with the prior art, the inspection well has the advantages that the shape of the transverse section of the inspection well is square, the size of the hollow part of the well shaft is the same as that of the pipeline, the size of the well body is reduced, and the well cover is a sealed well cover, so that the inspection well is isolated from the water flow of a ditch, and the sewage leakage is avoided. For the ditch with the smaller ditch width, the inspection well cover can be arranged at the bottom of the ditch, so that the influence of the sewage inspection well on the water flow of the ditch is reduced, and for the ditch with the larger ditch width, the inspection well cover can also be arranged above the normal water level, so that the maintenance and the management are convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a top view of a sewage manhole according to the present invention;

FIG. 2 is a sectional view of a sewage manhole according to the present invention;

the names of the components identified in the figures are as follows: 1. a water-stopping wing ring; 2. a wellbore; 3. a well cover; 11. a sealing part; 12. a connecting portion; 13. welding the part; 21. a seal ring; 22. a handle; 23. a screw; 25. a blow-off pipe; 26. a launder; 27. a gravel cushion layer; 28. and (4) reinforcing steel bar frames.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the description is only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1 to 2, the sewage inspection well comprises a shaft 2 and a well cover 3, wherein the transverse section of the shaft 2 is square, a sewage discharge hole matched with a sewage discharge pipe 25 is formed in the wall of the shaft 2, and the distance between two opposite inner walls of the shaft 2 is equal to the diameter of the sewage discharge hole. The shaft 2 is made of reinforced concrete, the shaft 2 is provided with a reinforcing steel frame 28, and the reinforcing steel frame 28 is provided with a vertical side part vertical to the bottom of the shaft 2; when in welding, the upper end of the vertical side part is welded with a water stop wing ring 1; the water stop wing ring 1 includes a welding portion 13 welded to the vertical side surface portion, a sealing portion 11 facing the welding portion 13, and a connecting portion 12 connecting the welding portion 13 and the sealing portion 11, respectively. When concrete is poured, the welded portion 13 is also fixed inside the concrete. The well cover 3 covers the sealing part 11 of the water stop wing ring 1; the bottom of the shaft 2 forms a launder 26 which has a flow guiding effect on the sewage. Launder 26 is a device that provides a perfect transition for water flow through the corner or joint of a pipe. Of course, this launder 26 is not a water pipe, but is built or concrete poured when the well is being made.

Sealing portion 11 with be equipped with the sealing washer 21 of upper surface and well lid 3 butt, lower surface and sealing portion 11 butt between the well lid 3. A first threaded hole is formed in the end face, facing the well lid 3, of the sealing part 11, a second threaded hole corresponding to the first threaded hole is formed in the well lid 3, and a through hole is formed in the sealing ring 21 corresponding to the first threaded hole; when the shaft 2 is sealed, the screw 23 is screwed to enter the second threaded hole, the seal ring 21 and the first threaded hole in sequence. Because a clearance is formed between the bottom end face of the sealing part 11 and the top end face of the shaft 2, an operation space is provided for fastening the well lid 3 and the sealing part 11 and improving the waterproof sealing performance. After the screw 23 passes through the second threaded hole, the seal ring 21 and the first threaded hole, the fastening screw 23 is screwed into the screw 23, and the well lid 3 and the sealing part 11 are fastened, so that a good sealing effect is achieved. In addition, a gap is formed between the bottom end face of the sealing part 11 and the top end face of the shaft 2, so that an acting point is provided for moving the sewage inspection well when the sewage inspection well is laid, and the difficulty in moving the sewage inspection well is reduced.

Since the manhole cover 3 of the inspection well may be immersed in the drainage ditch for a long time, microorganisms grow on the manhole cover 3 to form a biofilm, which becomes a slippery dirt layer like stones in water. The time of soaking has been long, will have the bacterium breeding in precipitate and the impurity sewage, makes well lid 3 become smooth, when overhauing the workman and need clearance and maintenance to the inspection shaft, is difficult to open well lid 3. Therefore, be equipped with well lid 3 handle 22 on the up terminal surface of well lid 3, reduce the degree of difficulty of opening well lid 3. In addition, in order to overcome the disadvantages caused by the long-term soaking of the manhole cover 3 in water, in the present embodiment, it is preferable that the manhole cover 3 is a sealed stainless steel manhole cover 3, and the sealing performance of the manhole cover 3 is also ensured by using the advantages of corrosion resistance, strength enhancement, difficult fracture of steel deformation, environmental protection performance and the like of stainless steel. The waterproof sealing design of well lid 3 can adapt to different inspection shaft application occasions. For the ditch with the smaller ditch width, the inspection well cover 3 can be arranged at the bottom of the ditch, so that the influence of the sewage inspection well on the flow of the ditch is reduced, and for the ditch with the larger ditch width, the inspection well cover 3 can also be arranged above the normal water level, so that the maintenance and the management are convenient.

The broken stone cushion 27 is laid at the outer bottom of the shaft 2 and is used for improving the bearing capacity of the shallow layer of the foundation below the bottom surface of the foundation, the shear failure in the foundation is gradually developed to the depth from the lower corner of the bottom surface of the foundation along with the increase of the base pressure, and therefore after the weak soil which is possibly sheared and damaged in the range of the shallow layer below the base surface is replaced by cushion material with higher strength, the bearing capacity can be improved.

The working principle of the embodiment is as follows: because the distance between 2 two relative inner walls of pit shaft equals with the diameter of blowoff hole, reduced the size of well bore, made the inspection shaft realize miniaturizing, can not cause the influence to the water cross section of escape canal. When concrete is poured, the welded portion 13 is also fixed inside the concrete. Therefore, the outer peripheral surface of the connecting part 12 is abutted against the inner wall of the shaft 2 and is matched in shape, and the water stop wing ring 1 is still tightly attached to the pipeline wall when the temperature difference is large. The water stop wing ring 1 is still tightly attached to the pipeline wall when the temperature difference is large. The water-stopping wing ring 1 has the function of preventing water leakage of a structure, has a very simple principle, namely, the water infiltration path is prolonged by multiple times, and the infiltration resistance is greatly increased to achieve the purpose of impermeability. The well cover 3 covers the sealing part 11 of the water stop wing ring 1; the bottom of the shaft 2 forms a launder 26 which has a flow guiding effect on the sewage. Launder 26 is a device that provides a perfect transition for water flow through the corner or joint of a pipe. Of course, this launder 26 is not a water pipe, but is built or concrete poured when the well is being made. As the well cover 3 of the inspection well can be immersed in the drainage ditch for a long time, the bolt fastening piece is matched with the sealing ring 21, and the good effect of preventing sewage leakage is achieved.

While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides a sewage inspection shaft, includes pit shaft and well lid, its characterized in that: the transverse section of the shaft is square, a sewage draining hole matched with a sewage draining pipe is formed in the wall of the shaft, and the distance between two opposite inner walls of the shaft is equal to the diameter of the sewage draining hole; the shaft is of a reinforced concrete structure, and is provided with a reinforcing steel frame, and the reinforcing steel frame is provided with a vertical side surface part vertical to the bottom of the shaft; the upper end of the vertical side part is welded with a water stopping wing ring; the water stop wing ring comprises a welding part welded with the vertical side surface part, a sealing part opposite to the welding part and connecting parts respectively connecting the welding part and the sealing part; the well cover covers the sealing part of the water stopping wing ring; the bottom of the well barrel forms a flow groove which has a flow guiding effect on sewage.

2. The sewage manhole of claim 1, wherein: the sealing portion with be equipped with between the well lid upper surface with well lid butt, lower surface with the sealing washer of sealing portion butt.

3. The sewage manhole of claim 2, wherein: a first threaded hole is formed in the end face, facing the well lid, of the sealing part, a second threaded hole corresponding to the first threaded hole is formed in the well lid, and a through hole is formed in the sealing ring corresponding to the first threaded hole; when the shaft is sealed, screws are screwed to sequentially enter the second threaded hole, the sealing ring and the first threaded hole.

4. The sewage manhole of claim 1, wherein: the outer peripheral surface of the connecting part is abutted against the inner wall of the shaft and is matched with the inner wall in shape.

5. The sewage manhole of claim 1, wherein: a gap is formed between the bottom end face of the sealing part and the top end face of the shaft.

6. The sewage manhole of claim 1, wherein: and a well lid handle is arranged on the upward end face of the well lid.

7. The sewage manhole of claim 1, wherein: and a gravel cushion is paved at the outer bottom of the shaft.

8. The sewage manhole of claim 1, wherein: the well lid adopts sealed stainless steel well lid.