CN210086443U - Anti-overflow device for inspection well - Google Patents

Abstract

The utility model discloses an inspection shaft anti-overflow device, the shaft is designed into a double-layer tubular hollow structure, the shaft sleeve is arranged in the sleeve, the first supporting plate supports the shaft, the water in the first water containing cavity is converged into the second water containing cavity through a gap formed by the piston rod jacking the shaft and a second through hole, the water is pressurized in the second water containing cavity, and then the second one-way pressure valve is flushed to be converged into the first straight pipe section, so that the water drainage speed is improved; the scheme has the beneficial effects of rapid drainage in rainy season, high safety index and stable operation.

Description

Anti-overflow device for inspection well

Technical Field

The utility model belongs to the technical field of plumbing equipment, concretely relates to inspection shaft anti-overflow device.

Background

The sewer of the urban street is related to every person in the city, the existing sewer cover has a simpler structure, generally only a well cover is arranged above a sewer shaft, impurities are accumulated above a horizontal fence under the action of water flow when raining, and in rainy seasons, the problem that drainage is not timely and smooth due to the small water discharge opening is often encountered, so that a large amount of water accumulated on the road surface causes traffic paralysis is solved; moreover, in the existing single-layer sewer manhole cover arrangement mode, when rainstorm drainage is performed, the manhole cover is jacked up and washed away due to the fact that water pressure in a sewer is too high, and the sewer manhole cover is lost, especially when drainage is performed, the sewer manhole cover is always fatal, and therefore great potential safety hazards are brought.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a drainage is rapid, be difficult for losing, the stable performance, the higher inspection shaft anti-overflow device of safety index.

In order to realize the purpose, the utility model discloses the technical scheme who takes is:

an inspection well anti-overflow device comprises a vertical shaft and a main pipe; the vertical shaft is of a double-layer cylindrical hollow structure and comprises an upper cover, a supporting piece, a bottom cover and an object containing cavity formed among the upper cover, the supporting piece, the bottom cover and the object containing cavity, wherein first through holes are formed in the upper cover and the bottom cover;

this inspection shaft anti-overflow device still includes:

the vertical shaft is sleeved in the sleeve;

the first supporting plate is arranged close to the bottom cover of the vertical shaft and fixed with the sleeve, and a water containing cavity is formed among the first supporting plate, the vertical shaft and the sleeve;

the second supporting plate is arranged at the lower part of the first supporting plate and is fixed with the sleeve, and a second water containing cavity is formed among the second supporting plate, the first supporting plate and the sleeve; the first supporting plate and the second supporting plate are respectively provided with at least one first through hole and at least one second through hole, the first through hole is opposite to the first water containing cavity, the first supporting plate is provided with the second through hole, and the second supporting plate is provided with the third through hole;

the sewer pipe comprises a first straight pipe section, a first bent pipe section, a second bent pipe section and a second straight pipe section, wherein one end of the first straight pipe section is communicated with the header pipe, the other end of the first straight pipe section penetrates through a through hole on one side to be communicated with the first water containing cavity, the second straight pipe section penetrates through the second through hole and places the free end in the second water containing cavity, the first bent pipe section is provided with a one-way pressure valve, the opening direction is from the first straight pipe section to the first bent pipe section, the second bent pipe section is provided with a one-way pressure valve, the opening direction is from the second bent pipe section to the first straight pipe section, and the second bent pipe section is placed in the second water containing cavity;

and one end of the piston rod is tightly attached to the inner wall of the second straight pipe section, and the other end of the piston rod can penetrate through the second through hole to be abutted to the vertical shaft bottom cover.

The embodiment of the utility model provides a beneficial effect lies in: this lower well structure can carry out the drainage mode of two kinds of forms according to the rainfall size, the accessible is less when the rainwater gets into through the little opening in a holding water cavity upper portion, then discharge into the main through the downcomer, when the rainfall is great, when the water pressure is not enough quick drainage in a holding water cavity, the water through the downcomer rushes open a check pressure valve under the water pressure effect and supplies water to first bend section, then the piston rod constantly pushes up under the water pressure effect, whole shaft is lifted up the breach, at this moment, the water in a holding water cavity flows in along the breach, discharge to No. two holding water intracavity from the second through-hole on the first backup pad, the water constantly gathers water pressure in No. two holding water cavities, then high-pressure water rushes open No. two check pressure valve on the second bend section and converges in first straight tube section, thereby have quick drainage's effect.

The embodiment of the utility model provides another beneficial effect lies in: the vertical shaft is arranged into a two-layer form, and is arched by the water pressure of the bottom drainage at most when meeting the requirements of rainstorm drainage, but cannot be flushed away integrally due to the limiting function of the supporting piece; in addition, when facing to the theft, only the upper cover is stolen easily, even if the upper cover is lost, the pedestrian steps on the empty, also can only fall into the object containing groove, can not fall into the depths, the injury that the theft is lost is reduced, especially in rainy season, the theft is not discovered in time, the pedestrian falls into the shaft when having ponding, the object containing groove provides the safe place that drops, can not be drawn into the great injury that causes in draining into sewer by the water body, thereby the sewer well structure still has the effect that the safety index is high, stable.

Furthermore, the inspection well anti-overflow device further comprises a blocking plate, wherein the blocking plate is a circular ring body, the inner side of the blocking plate is fixed on the outer edge of the sleeve, the outer side of the blocking plate is attached to the outer portion of the vertical shaft, and a drain hole is formed in the circular ring body.

Further, foretell inspection shaft anti-overflow device, all be equipped with two through-holes and No. two through-holes in first backup pad and the second backup pad.

Further, foretell inspection shaft anti-overflow device, be equipped with two at least support holes on the sleeve, first backup pad lateral part is equipped with two at least supporting blocks for the supporting block passes the support hole and forms the fixed to first backup pad.

Further, foretell inspection shaft anti-overflow device, be equipped with four holding holes on the sleeve, first backup pad lateral part is equipped with four supporting shoes.

Furthermore, in the inspection well anti-overflow device, a filter screen is arranged between the support piece of the vertical shaft and the first support plate.

Drawings

FIG. 1 is a side view of the inspection well overflow preventing device of the present invention;

FIG. 2 is a perspective view of the overflow preventing device of the inspection well of the present invention;

FIG. 3 is a top view of the overflow preventing device of the inspection well of the present invention;

FIG. 4 is a cross-sectional view taken along the plane A-A in FIG. 3;

FIG. 5 is a front view of the inspection well overflow preventing device of the present invention;

FIG. 6 is a cross-sectional view taken along plane D-D of FIG. 5;

fig. 7 is an exploded view of the inspection well overflow preventing device of the utility model.

Reference numerals in the drawings of the specification include: the water storage device comprises a vertical shaft 1, an upper cover 11, a supporting piece 12, a bottom cover 13, a containing cavity 14, a sleeve 2, a supporting hole 20, a blocking plate 3, a water drainage hole 30, a first supporting plate 4, a supporting block 40, a sewer pipe 5, a first straight pipe section 50, a first bent pipe section 51, a second bent pipe section 52, a second straight pipe section 53, a header pipe 6, a second supporting plate 7, a piston rod 8, a first one-way pressure valve 9, a second one-way pressure valve 10, a first through hole a, a second through hole b, a filter screen c, a first through hole a1, a second through hole a2, a third through hole a3, a first water containing cavity s1 and a second water containing cavity s 2.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1: refer to fig. 1 to 7

The scheme provides an inspection well anti-overflow device which comprises a vertical shaft 1 and a header pipe 6; the shaft 1 is a double-layer cylindrical hollow structure, and comprises an upper cover 11, a support member 12, a bottom cover 13 and an object containing cavity 14 formed among the upper cover 11, the support member 12 and the bottom cover 13, wherein the upper cover 11 and the bottom cover 13 are provided with a first through hole a 1;

this inspection shaft anti-overflow device still includes:

the vertical shaft 1 is sleeved in the sleeve 2;

the first supporting plate 4 is arranged close to the bottom cover 13 of the vertical shaft 1 and fixed with the sleeve 2, and a first water containing cavity s1 is formed between the first supporting plate 4 and the vertical shaft 1 and between the first supporting plate 4 and the sleeve 2;

a second support plate 7, wherein the second support plate 7 is arranged at the lower part of the first support plate 4 and is fixed with the sleeve 2, and a second water containing cavity s2 is formed between the second support plate 7 and the first support plate 4 as well as between the second support plate 7 and the sleeve 2; the first support plate 4 and the second support plate 7 are respectively provided with at least one first through hole a and at least one second through hole b, the first through hole a is opposite to the first water containing cavity s1, the first support plate 4 is provided with a second through hole a2, and the second support plate 7 is provided with a third through hole a 3;

the downcomer 5 comprises a first straight pipe section 50, a first bent pipe section 51, a second bent pipe section 52 and a second straight pipe section 53, wherein one end of the first straight pipe section 50 is communicated with the header pipe 6, the other end of the first straight pipe section passes through a first through hole a on one side to be communicated with a first water containing cavity s1, the second straight pipe section 53 passes through a second through hole b and places the free end in a second water containing cavity s2, the first bent pipe section 51 is provided with a first one-way pressure valve 9, the opening direction is from the first straight pipe section 50 to the first bent pipe section 51, the second bent pipe section 52 is provided with a second one-way pressure valve 10, the opening direction is from the second bent pipe section 52 to the first straight pipe section 50, and the second bent pipe section 52 is placed in the second water containing cavity s 2;

and one end of the piston rod 8 is closely attached to the inner wall of the second straight pipe section 53, and the other end of the piston rod 8 can penetrate through the second through hole b to be abutted against the bottom cover 13 of the shaft 1.

The cross-sectional shapes of the shaft 1 and the sleeve 2 can be set to be the same or different, such as: square, oval, circular, polygon or irregular shape etc. this scheme adopts circular cross section formula.

The concrete installation mode and drainage mode of the drainage well structure are explained in detail as follows:

the installation mode is as follows: as shown in fig. 5;

when the device is installed, firstly, a vertical groove body is excavated, a header pipe 6 is embedded at the bottom of the groove body, two sides of the header pipe 6 are compacted, then one end of a first straight pipe section 50 of a downcomer 5 is communicated with the header pipe 6 in a welding or sleeving way, a first through hole a of a first support plate 4 and a second through hole b of a second support plate 7 penetrate through the first branch pipe section, a second through hole b penetrates through the second branch pipe section, then a sleeve 2 is sleeved in the groove body to cover the downcomer 5, the first support plate 4 and the second support plate 7 therein, then a constructor enters the bottom of the groove body through a third through hole a3, the second support plate 7 is fixed by utilizing a welding or other fixing way such as a tenon riveting structure, the fixing position of the second support plate 7 and the sleeve 2 needs to be adjusted, so that the vertical distance between the second support plate 7 and the first support plate 4 is far as possible, and the vertical height of a second, thereby increasing the pressure of the water body in the second water containing cavity s 2;

after the second support plate 7 is welded, the second bent pipe section 52 and the first straight pipe section 50 are fixed at a certain height on the upper surface of the second support plate 7, then the first check pressure valve 9 is arranged on the first bent pipe section 51, the second check pressure valve 10 is arranged on the second bent pipe section 52, then the first support plate 4 and the sleeve 2 are fixed at the height position of the reserved shaft 1 on the top of the tank body, the specific fixing mode is that the second support plate 7 is fixed, the piston rod 8 is placed into the second straight pipe section 53 through the second through hole b of the first support plate 4, and finally the shaft 1 is placed on the upper surface of the first support plate 4, so that the first through hole a1 and the second through hole a2 are connected.

A drainage mode: as shown in fig. 1, 3 and 4;

the sewer well structure can perform two drainage modes according to the amount of rainwater, when the rainwater is less, the rainwater can be converged into the first water containing cavity s1 through a small opening at the upper part of the first water containing cavity s1 and then is drained into the main pipe 6 through the sewer pipe 5, at the moment, the water pressure of the sewer pipe 5 is less, and the water flow keeps a medium-low speed flowing state in the sewer pipe 5; when the rainfall is large, and the water pressure in the first water containing cavity s1 is not enough to quickly drain, the water body passing through the downcomer 5 rushes open the first one-way pressure valve 9 to supply water to the first elbow section 51 under the action of the water pressure, then the piston rod 8 continuously pushes up under the action of the water pressure, the whole shaft 1 is lifted up to the notch, at the moment, the water body in the first water containing cavity s1 flows in along the notch and is discharged into the second water containing cavity s2 from the second through hole a2 on the first supporting plate 4, the water body continuously accumulates the water pressure in the second water containing cavity s2, and then the high-pressure water body rushes open the second one-way pressure valve 10 on the second elbow section 52 to converge into the first straight pipe section 50, so that the effect of quick drainage is achieved.

In addition, the vertical shaft 1 is arranged in a two-layer mode, when meeting the requirement of rainstorm drainage, the vertical shaft is arched by the water pressure of bottom drainage at most, but the vertical shaft 1 cannot be flushed away as a whole due to the limiting effect of the supporting piece 12; in addition, when the theft happens, only the upper cover 11 is stolen easily, even if the upper cover 11 is lost and a pedestrian steps empty, the pedestrian can only fall into the object containing groove and cannot fall into the deep position, the damage caused by the theft is reduced, particularly in rainy seasons, the theft cannot be found in time, the pedestrian falls into the vertical shaft 1 when accumulated water exists, the object containing groove gives a safe place, and the pedestrian cannot be drawn into the sewer main pipe 6 by water to cause great damage, so that the sewer well structure also has the effects of high safety index and stability.

Example 2: with reference to FIGS. 3 and 7

Compared with the embodiment 1, the inspection well anti-overflow device is characterized by further comprising a blocking plate 3, wherein the blocking plate 3 is a circular ring body, the inner side of the blocking plate 3 is fixed on the outer edge of the sleeve 2, the outer side of the blocking plate 3 is attached to the outer portion of the vertical shaft 1, a water discharge hole 30 is formed in the circular ring body, water in rainy seasons can be discharged into the first water containing cavity s1 through the water discharge hole 30, the blocking plate 3 has a supporting function, pedestrians are prevented from accidentally stepping into an upper opening of the first water containing cavity s1, the width of the first water containing cavity s1 can be enlarged, the volume of the first water containing cavity s1 is increased, namely the water pressure of the water in the first water containing cavity s1 is increased, conventional and rapid water discharge is facilitated, and the water discharge amount in.

Example 3: refer to FIG. 7

Compared with the embodiment, the difference is that two through holes a and two through holes b are respectively arranged on the first supporting plate 4 and the second supporting plate 7, two sewer pipes 5 can be arranged on the two through holes a and are communicated with a water containing cavity s1, the drainage speed is improved, and in addition, the piston rods 8 are respectively arranged in the two through holes b, so that the drainage is carried out at the peak in rainy seasons, and the vertical shaft 1 is more stable and safer when the two piston rods 8 are jacked up.

Example 4: refer to FIG. 7

Compared with the above embodiment, the difference is that at least two support holes 20 are arranged on the sleeve 2, and at least two support blocks 40 are arranged on the side of the first support plate 4, so that the support blocks 40 pass through the support holes 20 to form a fixation to the first support plate 4, and if the first support plate 4 bears a large upper load, such as a heavy load of a water body, a pedestrian and a vehicle, if a normal connection mode is adopted, the first support plate 4 is easy to fall off from the sleeve 2 when bearing the heavy load for a long time, so that the first support plate 4 falls off to damage the lower part structure of the drainage well, and most dangerously, the vertical shaft 1 falls down together with the first support plate 4, so that a dark pit is formed on a road surface, and; in the arrangement mode, the supporting block 40 can pass through the supporting hole 20, and the surplus part can be embedded into the soil body on the side wall of the sleeve 2, which is equivalent to that the side wall of the sleeve 2 and the soil body bear the overlying load together, so that the fixing strength between the first supporting plate 4 and the sleeve 2 is improved, and the use safety is improved.

Example 5: refer to FIG. 7

Compared with the embodiment 4, the difference is that four supporting holes 20 are arranged on the sleeve 2, four supporting blocks 40 are arranged on the side part of the first supporting plate 4, the more the supporting holes 20 are, the higher the fixing stability of the first supporting plate 4 is, the more the four supporting holes 20 are, the uniform stress is applied when the four supporting holes 20 face the normal load, and the stability is better.

Example 6: refer to FIG. 4

Compared with the above embodiment, the difference is that a filter screen c is arranged between the supporting member 12 of the shaft 1 and the first supporting plate 4, the filter screen c can filter impurities in rainwater, and the impurities are blocked in the first water containing cavity s1 or directly discharged into the header pipe 6 through the first straight pipe section 50 of the downcomer 5, so that the impurities are prevented from entering the second water containing cavity s2 to be accumulated to cause blockage and problems caused by cleaning.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims (10)

1. An inspection well anti-overflow device comprises a vertical shaft (1) and a main pipe (6); the method is characterized in that: the vertical shaft (1) is of a double-layer cylindrical hollow structure and comprises an upper cover (11), a support piece (12), a bottom cover (13) and an object containing cavity (14) formed among the upper cover (11), the support piece and the bottom cover (13), wherein first through holes (a1) are formed in the upper cover (11) and the bottom cover (13);

this inspection shaft anti-overflow device still includes:

the vertical shaft (1) is sleeved in the sleeve (2);

the first supporting plate (4), the first supporting plate (4) is closely attached to the bottom cover (13) of the vertical shaft (1) and fixed with the sleeve (2), and a water containing cavity (s1) is formed among the first supporting plate (4), the vertical shaft (1) and the sleeve (2);

the second supporting plate (7), the second supporting plate (7) is set up in the inferior part of the first supporting plate (4) and fixed with bush (2), and form the water cavity (s2) of number two among the second supporting plate (7), first supporting plate (4) and bush (2); the first supporting plate (4) and the second supporting plate (7) are respectively provided with at least one first through hole (a) and at least one second through hole (b), the first through hole (a) is opposite to the first water containing cavity (s1), the first supporting plate (4) is provided with a second through hole (a2), and the second supporting plate (7) is provided with a third through hole (a 3);

the sewer pipe (5) comprises a first straight pipe section (50), a first bent pipe section (51), a second bent pipe section (52) and a second straight pipe section (53), wherein one end of the first straight pipe section (50) is communicated with the header pipe (6), the other end of the first straight pipe section (50) penetrates through a first through hole (a) on one side to be communicated with a first water containing cavity (s1), the second straight pipe section (53) penetrates through a second through hole (b) and places the free end in the second water containing cavity (s2), a first one-way pressure valve (9) is arranged on the first bent pipe section (51), the opening direction is from the first straight pipe section (50) to the first bent pipe section (51), a second one-way pressure valve (10) is arranged on the second bent pipe section (52), the opening direction is from the second bent pipe section (52) to the first straight pipe section (50), and the second bent pipe section (52) is placed in the second water containing cavity (s 2);

and one end of the piston rod (8) is closely attached to the inner wall of the second straight pipe section (53), and the other end of the piston rod (8) can penetrate through the second through hole (b) to be abutted against the bottom cover (13) of the vertical shaft (1).

2. The inspection well overflow prevention device of claim 1, wherein: the water-saving type vertical shaft is characterized by further comprising a blocking plate (3), wherein the blocking plate (3) is a circular ring body, the inner side of the blocking plate (3) is fixed on the outer edge of the sleeve (2), the outer side of the blocking plate (3) is attached to the outer portion of the vertical shaft (1), and a water drainage hole (30) is formed in the circular ring body.

3. The inspection well overflow prevention device of claim 1 or 2, wherein: all be equipped with two through-hole (a) and No. two through-hole (b) on first backup pad (4) and second backup pad (7).

4. The inspection well overflow prevention device of claim 1 or 2, wherein: the sleeve (2) is provided with at least two support holes (20), and the side part of the first support plate (4) is provided with at least two support blocks (40), so that the support blocks (40) penetrate through the support holes (20) to form fixation on the first support plate (4).

5. The inspection well overflow prevention device of claim 3, wherein: the sleeve (2) is provided with at least two support holes (20), and the side part of the first support plate (4) is provided with at least two support blocks (40), so that the support blocks (40) penetrate through the support holes (20) to form fixation on the first support plate (4).

6. The inspection well overflow prevention device of claim 4, wherein: four supporting holes (20) are formed in the sleeve (2), and four supporting blocks (40) are arranged on the side portion of the first supporting plate (4).

7. The inspection well overflow prevention device of claim 5, wherein: four supporting holes (20) are formed in the sleeve (2), and four supporting blocks (40) are arranged on the side portion of the first supporting plate (4).

8. The inspection well overflow prevention device of claim 1 or 2, wherein: and a filter screen (c) is arranged between the support piece (12) of the vertical shaft (1) and the first support plate (4).

9. The inspection well overflow prevention device of claim 3, wherein: and a filter screen (c) is arranged between the support piece (12) of the vertical shaft (1) and the first support plate (4).

10. The inspection well overflow prevention device of claim 4, wherein: and a filter screen (c) is arranged between the support piece (12) of the vertical shaft (1) and the first support plate (4).

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