CN111718093A - A thin-shell precast concrete septic tank - Google Patents

Abstract

The invention discloses a thin-shell type prefabricated concrete septic tank, the horizontal section of which is elliptical, and includes two left and right semi-elliptical pools A and B symmetrical about the short axis of the ellipse, and pools A and B are both prefabricated The bottom plate, the pool body, and the prefabricated cover plate are composed. The upper end surface of the prefabricated bottom plate is provided with a pressure groove, and the bottom of the pool body is placed in the pressure groove. The upper part of the section is provided with a Y-shaped connecting part that gradually widens from bottom to top, a slot is arranged in the middle of the upper end face of the Y-shaped connecting part, the lower part of the upper tube section is placed in the slot, and the prefabricated cover plate is placed on the top tube The section is used to cover the pool body. The invention adopts an oval thin shell structure, which can evenly disperse the pressure received to each part of the pool body, reduce the pressure on the wall of the pool body, and improve the service life and quality of the product; prefabricated bottom plate, pool body, prefabricated cover plate, The clapboards are individually prefabricated, which is convenient for manual handling and installation.

Description

A thin-shell precast concrete septic tank

technical field

The invention relates to a septic tank, in particular to a thin-shell type precast concrete septic tank.

Background technique

Septic tank is a treatment equipment that uses the principles of sedimentation and anaerobic fermentation to remove suspended organic matter in domestic sewage. The traditional septic tank is made of bricks after artificial digging, which has problems such as long construction period and easy leakage of sewage. In order to solve the above problems, precast concrete septic tanks came into being. Most of the existing precast concrete septic tanks have a square structure. Due to the small tensile strength and tensile strain of the reinforced concrete structure, especially at the corners due to stress concentration, cracks or even fractures are likely to occur. The measures are to increase the section size of the component and the amount of steel used, which will greatly increase the self-weight of the component and the production cost. Therefore, it is necessary to design a precast concrete septic tank with high strength, thin wall and light weight.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a thin-shell type precast concrete septic tank with high strength, thin wall and light weight, convenient handling and installation.

The technical scheme adopted in the present invention is as follows: a thin-shell type precast concrete septic tank, the horizontal section of the septic tank is elliptical, and includes two left and right semi-elliptical pools A and B symmetrical with the short axis of the ellipse. The A pool and the B pool are composed of a prefabricated bottom plate, a pool body, and a prefabricated cover plate. The upper end surface of the prefabricated bottom plate is provided with a pressure groove, and the bottom of the pool body is placed in the pressure groove. The upper part of the lower pipe section is provided with a Y-shaped connecting part that gradually widens from bottom to top, and the middle part of the upper end face of the Y-shaped connecting part is provided with a slot. The lower part is placed in the slot, and the prefabricated cover plate is placed on the uppermost pipe section to cover the pool body.

Further, a separator is arranged vertically in the A pool to separate the A pool into a sediment processing unit and a scum processing unit, the sediment processing unit is connected with a water inlet pipe, and the sediment processing unit and the scum processing unit pass through. The overflow pipe arranged on the clapboard is communicated, the B pool is a sewage treatment unit, the A pool and the B pool are communicated through the overflow pipe arranged on the opposite side of the pool body wall, and the B pool pool wall is communicated with each other. Connected to the outlet pipe.

Further, limit blocks are respectively provided on both sides of the upper part of the partition plate, a slot corresponding to the partition plate limit block is arranged on the inner wall of the A pool, and a pressure groove corresponding to the partition plate is arranged on the upper end face of the prefabricated bottom plate. , the bottom of the partition is placed in the pressure groove.

Further, waterproof mortar is poured in the pressure groove on the prefabricated bottom plate and the groove on the Y-shaped connecting part.

Further, a water-stop rubber strip is arranged on the bottom surface of each pipe section.

Further, a groove is provided on the bottom surface of the pipe section, and the water-stop rubber strip is placed in the groove.

Further, a protruding slope is provided on the outer side of the bottom of the bottom pipe section.

Further, the prefabricated bottom plates and the prefabricated cover plates of the A pool and the B pool are respectively closely spliced and spliced.

Further, a corner between the rectangular surface and the arc-shaped surface of the pool body is provided with a chamfered surface.

Further, the thickness of the chamfered surface at the corner is greater than the wall thickness of the arcuate surface.

The beneficial effects of the present invention are:

(1) The precast concrete septic tank of the present invention adopts an elliptical thin shell structure, which can evenly distribute the pressure received to each part of the tank body, reduce the pressure on the tank body wall, and improve the service life and quality of the product;

(2) The prefabricated concrete septic tank of the present invention adopts an upper and lower layered structure. The prefabricated bottom plate, pool body, prefabricated cover plate and partition plate are all prefabricated separately. The weight of each component does not exceed 150kg, which is convenient for manual handling and installation. Use in areas with inconvenient traffic such as rural areas;

(3) The installation nodes of the upper and lower pipe joints of the precast concrete septic tank of the present invention are all sealed by Y-shaped connection part + grouting, which is conducive to installation and positioning, and has a good overall waterproof effect;

(4) The prefabricated concrete septic tank bottom pipe section and the prefabricated bottom plate of the present invention are sealed by pressing grooves and grouting, and the overall waterproof effect is good.

Description of drawings

FIG. 1 is a schematic top view of a pool body in an embodiment of the present invention.

FIG. 2 is a schematic diagram of an overall cross-sectional structure in an embodiment of the present invention.

FIG. 3 is a partial enlarged view of part A in FIG. 2 .

FIG. 4 is a partial enlarged view of B in FIG. 2 .

Detailed ways

In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively and in detail below with reference to the accompanying drawings and preferred embodiments of the specification, but the protection scope of the present invention is not limited to the following specific embodiments.

As shown in Fig. 1-Fig. 4, a kind of thin shell type precast concrete septic tank of the present embodiment, the horizontal section of this septic tank is elliptical, comprises the A pool of two left and right semi-ellipses symmetrical with the short axis of the ellipse 1 and B pool 2, described A pool 1, B pool 2 are all made up of prefabricated bottom plate 7, pool body 6, prefabricated cover plate 5, and the corner between the rectangular surface and the arc surface of pool body 6 is provided with a chamfered surface 4, and the thickness of the chamfered surface 4 at the corner is greater than the wall thickness of the arc surface.

The bottom outer side of the bottom pipe section is provided with a protruding slope 9, the upper end surface of the prefabricated bottom plate 7 is provided with a pressure groove, and the bottom of the pool body 6 is placed in the pressure groove; the pool body 6 consists of two upper and lower sections. It is composed of stacked pipe sections, the upper part of the lower pipe section is provided with a Y-shaped connecting part 8 that gradually widens from bottom to top, a slot is arranged in the middle of the upper end face of the Y-shaped connecting part 8, and the lower part of the upper pipe section is placed in the slot. Inside, a groove is arranged on the bottom surface of each pipe section, a water-stop rubber strip is arranged in the groove, and waterproof mortar is poured in the pressure groove on the prefabricated bottom plate 7 and the slot on the Y-shaped connecting part; The cover plate 5 is placed on the uppermost pipe section to cover the pool body 6 . The prefabricated bottom plates 7 and the prefabricated cover plates 5 of the A pool 1 and the B pool 2 are respectively closely spliced together.

A separator 3 is vertically arranged in the A pool 1 to separate the A pool 1 into a sediment processing unit and a scum processing unit. The sediment processing unit is connected with a water inlet pipe, and the sediment processing unit and the scum processing unit are between Connected by the overflow pipe arranged on the partition 3, the B pool 2 is a sewage treatment unit, and the A pool 1 and the B pool 2 are connected by the overflow pipe arranged on the wall of the pool body 6 on the opposite side. connected, and a water outlet pipe is connected on the wall of the pool B 2. Limit blocks are respectively provided on both sides of the upper part of the partition plate 3, the inner wall of the A pool 1 is provided with a slot corresponding to the limit block of the partition plate, and the upper end face of the prefabricated bottom plate 7 is provided with a pressure groove corresponding to the partition plate, the The bottom of the plate 3 is placed in the pressing groove.

Many modifications and other embodiments of the inventions will come to mind to one skilled in the art to which these inventions pertain having the benefit of the teachings presented in the foregoing descriptions and the associated drawings. Therefore, it is to be understood that the inventions are not to be limited to the specific embodiments disclosed and that modifications and other embodiments are intended to be included within the scope of the appended claims. Although specific terms are used herein, they are used in a generic and descriptive sense only and not of limitation.

Claims (10)

1. The utility model provides a thin shell formula precast concrete septic tank which characterized in that: this septic tank horizontal cross-section is oval, includes two semi-elliptical A ponds and the B pond about with oval minor axis symmetry, A pond, B pond are by prefabricated bottom plate, cell body, prefabricated apron and constitute, be equipped with the indent on the up end of prefabricated bottom plate, the indent is arranged in to the bottom of cell body, the cell body comprises two or more sections upper and lower range upon range of tube coupling, and the upper portion of lower floor's tube coupling is equipped with from supreme Y type connecting portion that widen gradually down, is equipped with the fluting in the middle part of Y type connecting portion up end, and the fluting is arranged in to the lower part of upper tube coupling, prefabricated apron is arranged in on the superiors' tube coupling and is used for the closing cap cell body.

2. A thin shell type precast concrete septic tank as set forth in claim 1, wherein: the vertical baffle that is equipped with in the A pond separates into sediment processing unit, dross processing unit with the A pond, sediment processing unit is connected with the inlet tube, through setting up the overflow pipe intercommunication on the baffle between sediment processing unit, the dross processing unit, be sewage treatment unit in the B pond, through setting up the overflowing pipe intercommunication on the pond wall of relative one side between A pond, the B pond, be connected with the outlet pipe on the pond wall of the B pond.

3. A thin shell type precast concrete septic tank as set forth in claim 2, wherein: the both sides on baffle upper portion are equipped with the stopper respectively, are equipped with the draw-in groove corresponding with the baffle stopper on A pond inner wall, are equipped with the indent that corresponds with the baffle on prefabricated bottom plate up end, and the indent is arranged in to the bottom of baffle.

4. A thin shell type precast concrete septic tank as set forth in claim 1, wherein: and waterproof mortar is poured in the pressure groove on the prefabricated bottom plate and the open groove on the Y-shaped connecting part.

5. A shell-type precast concrete septic tank as set forth in claim 4, wherein: the bottom surface of each pipe joint is provided with a water stop adhesive tape.

6. A shell-type precast concrete septic tank as set forth in claim 5, wherein: the bottom surface of the pipe joint is provided with a groove, and the water stop rubber strip is arranged in the groove.

7. A thin shell type precast concrete septic tank as set forth in claim 1, wherein: and a protruding slope surface is arranged on the outer side of the bottom layer pipe joint.

8. A thin shell type precast concrete septic tank as set forth in claim 1, wherein: and the prefabricated bottom plates and the prefabricated cover plates of the tank A and the tank B are respectively adhered and spliced.

9. A thin shell type precast concrete septic tank as set forth in any one of claims 1 to 8, wherein: a chamfer surface is arranged at a corner between the rectangular surface and the arc-shaped surface of the tank body.

10. A shell-type precast concrete septic tank as set forth in claim 9, wherein: the thickness of the chamfer surface at the corner is larger than the wall thickness of the arc-shaped surface.

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