CN218374370U

CN218374370U - Sealing device for manhole at top of sewage pool

Info

Publication number: CN218374370U
Application number: CN202222520547.7U
Authority: CN
Inventors: 刘力; 杨智彬; 林维金
Original assignee: Guangdong Shun Kong Environmental Investment Co ltd
Current assignee: Guangdong Shun Kong Environmental Investment Co ltd
Priority date: 2022-09-22
Filing date: 2022-09-22
Publication date: 2023-01-24
Anticipated expiration: 2032-09-22

Abstract

The utility model discloses an obturator that is used for effluent water sump roof access hole, include: the concrete water seal is poured around the access hole in the top of the sewage pool, the concrete water seal comprises an inner cofferdam and a peripheral weir, and a water seal groove is formed between the inner cofferdam and the peripheral weir; the plurality of fixed brackets are positioned at the outer side of the outer cofferdam, and the upper parts of the fixed brackets are provided with detachable limiting components; the sealing cover assembly comprises a steel cover plate, extending edges extending downwards are arranged on the periphery of the steel cover plate, the steel cover plate covers the inner cofferdam, and the extending edges extend into the water seal tank; the pressing component is positioned above the steel cover plate and is provided with a pressing piece capable of being adjusted up and down, the pressing piece is abutted against the steel cover plate, and the limiting component can limit the pressing component to move up; the protective pressure can be controlled and adjusted, automatic water seal breaking and pressure relief are realized, and the assembly and disassembly are convenient.

Description

Sealing device for manhole at top of sewage pool

Technical Field

The utility model relates to a sewage treatment field, in particular to an obturator that is used for effluent water sump top manhole.

Background

Because the waste water in the sewage tank is usually in an anaerobic/anoxic state, the microorganism in the waste water generates flammable and explosive gas such as methane through anaerobic biological reaction in the state, the methane contains malodorous gas such as hydrogen sulfide, methyl mercaptan and the like, and if the malodorous gas overflows from the tank, the surrounding air environment can be seriously polluted.

At landfill leachate treatment plant, landfill leachate equalizing basin, anaerobism pond department can set up the access hole, and the access hole adopts galvanized steel sheet/corrosion resistant plate simply to cover usually, glues with glass and seals, adopts the slight negative pressure convulsions in the pond. The sealing performance of the glass cement is difficult to maintain durably due to the corrosion of the methane and the aging of the glass cement, and in addition, the air pressure inside and outside the pool is inconsistent, so that the methane is leaked to the outside of the pool after a long time; the inspection holes of the landfill leachate adjusting tank and the anaerobic tank are sealed by adopting blind plates. Usually the access hole internal diameter is greater than 1 meter, and access hole dismouting bolt quantity is too many before the maintenance operation, and work load is great. Because the pool is in a completely physically sealed state, the structure of the pool body is damaged under the conditions that the pressure in the pool is extremely high/low and no pressure relief device is arranged.

SUMMERY OF THE UTILITY MODEL

The present invention aims to solve at least one of the above-mentioned technical problems in the related art to a certain extent. Therefore, the utility model provides an obturator that is used for effluent water sump tank top access hole.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

according to the utility model discloses an obturator for effluent water sump tank top access hole of first aspect embodiment, include:

the concrete water seal is poured around a manhole at the top of the sewage pool, the concrete water seal comprises an inner cofferdam and an outer cofferdam, and a water seal groove is formed between the inner cofferdam and the outer cofferdam;

the fixing supports are positioned outside the peripheral weir, and the upper parts of the fixing supports are provided with detachable limiting members;

the sealing cover assembly comprises a steel cover plate, the periphery of the steel cover plate is provided with a downward extending edge, the steel cover plate covers the inner cofferdam, and the extending edge extends into the water seal tank;

the pressing component is located above the steel cover plate and provided with a pressing piece capable of being adjusted up and down, the pressing piece abuts against the steel cover plate, and the limiting component can limit the pressing component to move up.

According to the utility model discloses an obturator that is used for effluent water sump tank top manhole has following beneficial effect at least:

1. the protective pressure of the air pressure in the sewage pool is adjusted by controlling the water sealing depth of the water sealing groove;

2. when the difference between the internal air pressure and the external air pressure of the sewage pool is extremely high, the internal structure of the sewage pool and various electronic instruments, equipment and the like communicated with the sewage pool are protected by automatically breaking the water seal to release pressure;

3. when the methane pressure in the sewage tank is high and the steel cover plate is jacked up by air pressure, the pressing piece can adjust the water penetration depth of the steel cover plate in the water seal tank, so that the extreme protective air pressure is adjusted;

4. during the maintenance, only need to dismantle stop member from the fixed bolster, then can cancel the spacing to pressing components, and then take out the closing cap subassembly, it is very convenient.

According to the utility model discloses a some embodiments, the fixed bolster includes steel bottom plate and angle bar support frame, two the welding of angle bar support frame interval is in on the steel bottom plate, the steel bottom plate passes through expansion bolts to be fixed on the top of the pool of effluent water sump, stop member detachable connects two between the angle bar support frame, pressing components one end stretches into two between the interval of angle bar support frame, stop member is right pressing components's tip shifts up spacingly.

According to some embodiments of the invention, the stop member is a stud bolt.

According to the utility model discloses a some embodiments, the closing cap subassembly is still including strengthening the channel-section steel, and is a plurality of strengthen the channel-section steel fixed mounting in the up end of steel decking.

According to some embodiments of the utility model, be equipped with the handle on the enhancement channel-section steel.

According to some embodiments of the utility model, the pressfitting subassembly is including connecting the channel-section steel, it is located to connect the channel-section steel stop member below, follow the length direction of connecting the channel-section steel installs a plurality of the casting die.

According to some embodiments of the utility model, the casting die is adjusting bolt, adjusting bolt's lower extreme with be equipped with the gasket between the steel cover plate.

According to some embodiments of the utility model, the highest point of outer cofferdam is higher than the highest point of interior cofferdam.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of the internal structure of the present invention in the front view direction;

FIG. 2 is a schematic top view of FIG. 1;

FIG. 3 is a schematic left side view in elevation of FIG. 1;

FIG. 4 is a schematic view of a mounting bracket configuration;

fig. 5 is a schematic structural view of the pressing assembly.

Reference numerals:

a concrete water seal 100; a manhole 101; an inner cofferdam 110; an outer cofferdam 120; a water seal tank 130;

a fixing bracket 200; a stop member 210; a steel bottom plate 220; an expansion bolt 221; an angle iron support bracket 230;

a closure assembly 300; a steel cover plate 310; an extension 311; a reinforcing channel 320; a handle 330;

a press-fit assembly 400; a pressing member 410; a connection channel 420; a spacer 430.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

The utility model relates to an obturator that is used for effluent water sump roof manhole, including concrete water seal 100, fixed bolster 200, closing cap subassembly 300 and pressing components 400.

As shown in fig. 1 and 2, a manhole 101 is formed at the top of the wastewater tank, the manhole 101 may be a round hole or a square hole, and the shape of the manhole 101 is not limited. The manhole 101 may communicate the inside and outside of the wastewater tank. The concrete water seal 100 is formed around the manhole 101 of the sewage tank by pouring concrete according to the shape of the manhole 101. Concrete water seal 100 has an inner cofferdam 110 and a peripheral weir 120, the inner cofferdam 110 may extend upwardly near or along the edge of the manhole 101, the peripheral weir 120 surrounds the outside of the inner cofferdam 110, and a downwardly concave water seal trough 130 is provided between the peripheral weir 120 and the inner weir 110. The fixing bracket 200 is located at the outer side of the outer cofferdam 120, in this embodiment, the fixing bracket 200 is fixedly installed on the pool wall at the top of the sewage pool at the outer side of the outer cofferdam 120, and two fixing brackets 200 are respectively arranged at both sides of the outer cofferdam 120. A stopper member 210 is detachably mounted on the fixing bracket 200. Cover assembly 300 includes a steel cover plate 310, steel cover plate 310 being adapted to cover inner weir 110. The steel cover plate 310 has a downwardly extending flange 311 at the periphery thereof, and the steel cover plate 310 is configured according to the shape of the water seal tank 130. For example, if the water seal tank 130 is circular in a plan view, the steel cover plate 310 has a cylindrical shape with a lower opening; if the water seal tank 130 is rectangular, the steel cover plate 310 is in a frame shape with a lower opening. The steel cover plate 310 is covered on the inner cofferdam 110, and the extending edge 311 extends downwards into the water seal tank 130. Water is added to the water seal tank 130 to soak the inside and outside of the extension 311. The pressing assembly 400 is located above the steel cover plate 310, and the pressing assembly 400 includes a pressing member 410, and the pressing member 410 can be adjusted up and down relative to the steel cover plate 310. The pressing member 410 abuts downwards on the upper surface of the steel cover plate 310, then the limiting member 210 is mounted on the fixing bracket 200, the limiting member 210 acts on the pressing component 400, so that the pressing component 400 cannot move upwards, and the limiting member 210 can limit the movement of the pressing component 400 in a manner of plugging or abutting downwards for pressing. Finally, the up-down position of the pressing element 410 is adjusted, so that the limiting height of the pressing element 410 on the steel cover plate 310 is controlled.

When the manhole cover is used, gas such as methane and the like can be generated in the sewage tank, and the manhole 101 is sealed under the limiting action of the limiting component 210 and the pressing piece 410 by utilizing the matching of the water seal tank 130 and the steel cover plate 310. The protection pressure of the air pressure in the wastewater tank is adjusted by controlling the water sealing depth of the water sealing groove 130. When the difference between the internal air pressure and the external air pressure of the sewage pool is extremely high, the water seal is automatically broken to release the pressure, so that the internal structure of the sewage pool and various electronic instruments, equipment and the like communicated with the sewage pool are protected. When the methane pressure in the sewage tank is high and the steel cover plate 310 is jacked up by the air pressure, the pressing member 410 can adjust the water penetration depth of the steel cover plate 310 in the water seal tank 130, so that the size of the extreme protection air pressure is adjusted. During maintenance, the limiting component 210 is only required to be detached from the fixing support 200, so that the limiting of the pressing component 400 can be cancelled, and the cover component 300 can be taken out conveniently.

In some embodiments of the present invention, as shown in fig. 3 and 4, the fixing bracket 200 includes a steel base plate 220 and an angle iron support 230. The steel bottom plate 220 is fixed to the top of the wastewater tank by expansion bolts 221. The angle iron support 230 is vertically fixed on the steel base plate 220, and the angle iron support 230 and the steel base plate 220 are connected by welding. Two angle iron support frames 230 are correspondingly welded on one steel base plate 220, an interval is formed between the two angle iron support frames 230, and the limiting member 210 is detachably arranged on the upper parts of the two angle iron support frames 230. One end of the pressing assembly 400 extends into the space between the two angle iron support frames 230 and is located below the limiting member 210. The two sides of the outer cofferdam 120 are provided with the fixing portions, and the two ends of the group of pressing components 400 are limited by the limiting members 210 on the two sides respectively. In this embodiment, stop member 210 chooses for use stud, and stud transversely alternates in two angle bar support frames 230, then locks through the nut, only needs to loosen the nut when needing to dismantle, with stud take out can, it is very convenient to load and unload.

In some embodiments of the present invention, as shown in fig. 1 and 2, a plurality of reinforcing channel steel 320 are disposed on the upper end surface of the steel cover plate 310, and the structural strength of the steel cover plate 310 is improved by the reinforcing channel steel 320, so as to avoid deformation of the steel cover plate 310 under strong pressure. Meanwhile, the handle 330 may be disposed on the reinforcing channel steel 320, and when the steel cover plate 310 is detached, the steel cover plate 310 may be taken and placed through the handle 330.

In some embodiments of the present invention, as shown in fig. 2 and 5, the pressing assembly 400 includes a connection channel 420, the connection channel 420 is in a long shape, two ends of the connection channel 420 respectively extend between the two angle iron support frames 230, and the connection channel 420 is restricted by the limiting member 210 from moving upwards. A plurality of pressing pieces 410 are sequentially arranged along the length direction of the connecting channel steel 420, and adjusting bolts can be selected for the pressing pieces 410. Adjusting bolt and connection channel-section steel 420 threaded connection, rotatory adjusting bolt, the height of control adjusting bolt on connecting channel-section steel 420, adjusting bolt's lower extreme supports to carry out the pressfitting spacing on steel apron 310. Further, a rigid gasket 430 is arranged between the lower end of the adjusting bolt and the steel cover plate 310, and the rigid gasket 430 is used for increasing the contact stress area between the pressing piece 410 and the steel cover plate 310, so that the steel cover plate 310 is prevented from being damaged by concentrated stress. The shims 430 may be separate from the compression element 410 or may be integral therewith.

In some embodiments of the present invention, the highest point of the peripheral weir 120 is higher than the highest point of the inner weir 110. When the water-sealed tank 130 is filled with water, the water level is flush with the top of the inner cofferdam 110. The water in the water seal tank 130 absorbs ammonia gas, hydrogen sulfide and other gases in the biological anaerobic biogas, and then the water quality deteriorates and the foul odor is emitted. In this embodiment, the outer cofferdam 120 is 10cm higher than the inner surrounding weir 110, the water seal water can be replaced by directly adding water into the water seal tank 130, the wastewater overflows the inner surrounding weir 110 and enters the water pool, and the operation is extremely convenient.

In the description herein, references to the description of "some specific embodiments" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A obturator for a cesspool top manhole, comprising:

the concrete water seal (100) is poured around a manhole (101) on the top of a sewage pool, the concrete water seal (100) comprises an inner cofferdam (110) and a peripheral weir (120), and a water seal groove (130) is formed between the inner cofferdam (110) and the outer cofferdam (120);

the fixing supports (200), a plurality of fixing supports (200) are positioned at the outer side of the outer cofferdam (120), and the upper parts of the fixing supports (200) are provided with detachable limiting members (210);

the cover sealing assembly (300) comprises a steel cover plate (310), the periphery of the steel cover plate (310) is provided with an extending edge (311) extending downwards, the steel cover plate (310) covers the inner cofferdam (110), and the extending edge (311) extends into the water sealing groove (130);

the pressing component (400) is located above the steel cover plate (310), the pressing component (400) is provided with a pressing piece (410) capable of being adjusted up and down, the pressing piece (410) abuts against the steel cover plate (310), and the limiting component (210) can limit the pressing component (400) to move up.

2. The enclosure apparatus for the manhole in the top of a cesspool as recited in claim 1, wherein: the fixing support (200) comprises a steel base plate (220) and angle iron support frames (230), the two angle iron support frames (230) are welded on the steel base plate (220) at intervals, the steel base plate (220) is fixed on the top of the sewage pool through expansion bolts (221), the limiting member (210) is detachably connected between the two angle iron support frames (230), one end of the pressing assembly (400) extends into the interval between the two angle iron support frames (230), and the limiting member (210) limits the upward movement of the end part of the pressing assembly (400).

3. The containment apparatus for the manhole of the top of a lagoon of claim 2, wherein: the limiting member (210) is a stud bolt.

4. The containment apparatus for the manhole of the top of a lagoon of claim 1, wherein: the cover assembly (300) further comprises reinforcing channel steel (320), and a plurality of reinforcing channel steel (320) are fixedly mounted on the upper end face of the steel cover plate (310).

5. The containment apparatus for the manhole of the top of a lagoon of claim 4, wherein: and a handle (330) is arranged on the reinforcing channel steel (320).

6. The containment apparatus for the manhole of the top of a lagoon of claim 1, wherein: the pressing assembly (400) comprises a connecting channel steel (420), the connecting channel steel (420) is located below the limiting member (210), and a plurality of pressing pieces (410) are installed along the length direction of the connecting channel steel (420).

7. The enclosure apparatus for the manhole in the top of a lagoon of claim 6, wherein: the pressing piece (410) is an adjusting bolt, and a gasket (430) is arranged between the lower end of the adjusting bolt and the steel cover plate (310).

8. The containment apparatus for the manhole of the top of a lagoon of claim 1, wherein: the highest point of the outer weir (120) is higher than the highest point of the inner weir (110).