CN114892781B - Hidden overflow drain device and installation method - Google Patents

Abstract

A hidden overflow drain device and an installation method belong to a rainwater utilization device and comprise one or more sections of transfer pipe sections, sand settling drainage boxes matched with the number of the sections of the transfer pipe sections and an overflow drain formed by splicing a plurality of sections of standard pipe sections, wherein the transfer pipe sections are connected with the sand settling drainage boxes in parallel; the adapter pipe sections are connected with the plurality of standard pipe sections in series through connecting clamping plates of channel steel structures arranged at pipe openings; a row of adapter tube overflow holes are arranged at the upper part of the front surface of the adapter tube section, and a large water drainage long hole is arranged below the adapter tube overflow holes; the upper part of the back of the sand-settling drainage box is provided with a water inlet long hole corresponding to the drainage long hole, the lower part of the sand-settling drainage box is divided into a sand settling area and a drainage area by a sand blocking ridge, and a drainage hole is formed in a bottom plate of the drainage area. The invention has simple structure and convenient field installation, can replace the original overflow well of the rainwater garden, not only realizes the utilization of rainwater, but also can be integrated with the landscape of the rainwater garden.

Description

Hidden overflow drain device and installation method

The technical field is as follows:

the invention relates to a hidden overflow drain device and an installation method, belonging to a rainwater utilization device, in particular to a rainwater overflow utilization device for a flower and plant planting area.

The background art comprises the following steps:

the existing common overflow device is an overflow well installed in a rainwater garden and comprises a well body, a well cover and a drainage pipeline communicating the well body with a municipal rainwater pipe network. Excessive rainwater can be overflowed when rainstorm occurs so as to ensure that the rainwater in the sponge facility can not overflow the road surface. Although the existing common rainwater overflow well has the function of ensuring that rainwater in sponge facilities cannot overflow the road surface and can meet the design requirements of common water professional engineers, the appearance of the common rainwater overflow well is lack of aesthetic feeling, and the structure of the common rainwater overflow well cannot be well matched with a garden.

Patent document No. CN201910371630.2 (reference 1) discloses a sponge-type rainwater garden overflow device, which comprises an overflow well, wherein the overflow well is arranged at a low-lying position of a rainwater garden, the lower end of the overflow well is a concrete base layer, a fine stone concrete layer is poured on the upper surface of the concrete base layer, a well wall of the overflow well is formed by building cement mortar bricks, a square cast iron overflow cover is arranged at the upper opening of the overflow well, cement mortar mounting seats are poured at four ends of the upper opening of the overflow well, a grid filter screen is arranged in the overflow well, and an overflow pipe is embedded at the bottom of the well wall of the overflow well;

application number is CN201820052076.2 (reference 2) and discloses a rainwater garden overflow well, including overflow well and overflow well lid, the overflow well comprises interior wall, overflow well seat and concrete foundation, and the interior wall comprises M10 cement mortar and MU10 brick, is equipped with cecum and overflow mouth connecting pipe in the wall of interior wall, and overflow mouth connecting pipe and cecum mutually perpendicular set up, and the vertical position of cecum is higher than the vertical position of overflow mouth connecting pipe, and the top of overflow well seat is equipped with the overflow well lid.

Although both of the above-described overflow wells are functionally improved over conventional overflow wells, their structure does not break the basic features of conventional overflow wells. The following disadvantages still exist:

comparison document 1: the rainwater storage device is built at a low-lying position of the rainwater garden, and the rainwater garden overflows too early to reduce the regulation and storage effect of the rainwater garden on rainstorm; the square cast iron well cover is fixed by mortar, so that the maintenance is inconvenient; the landscape effect is poor: the well body is of a brick structure, the well cover is made of cast iron material, and the well cover is arranged in a rainwater garden and cannot be integrated with landscape due to lack of natural and ecological beauty.

Comparison document 2: the materials used for the overflow well are emphasized to have enough strength, but the overflow well is actually made of common building materials and is not environment-friendly materials or special functional materials; a blind pipe and an overflow port connecting pipe are arranged in the wall (well wall) of the inner wall, wherein the blind pipe is used for collecting rainwater filtered by the changed filler and leading the rainwater into the overflow well so as to improve the working efficiency of the overflow well. By the method, a large amount of stored rainwater flows into the overflow well when overflow is not needed, so that the flood storage capacity of the rainwater garden is greatly reduced; adopt circular well lid and through rotation axis fixed connection, make difficult separation, reduction potential safety hazard between well lid and the walling crib, but still hardly fuse mutually with the environment of rainwater garden, destroyed the whole pleasing to the eye effect of environment.

The invention content is as follows:

the invention aims to provide a hidden overflow drain device which is light in structure, has all parts processed, is attractive in appearance and is easy to install and an installation method.

The purpose of the invention is realized as follows:

a hidden overflow ditch device comprises one or more sections of adapter pipe sections, a sand-settling drainage box matched with the number of the adapter pipe sections and an overflow ditch formed by splicing a plurality of sections of standard pipe sections, wherein the lengths and the section structures of the adapter pipe sections and the standard pipe sections are the same; the transfer pipe section is connected with the sand-settling drainage box in parallel; the adapter tube section is connected with the plurality of standard tube sections in series through a connecting clamping plate of a channel steel structure arranged at the tube orifice; the adapter pipe section is a rectangular flat pipe, a row of adapter pipe overflow holes are formed in the upper portion of the front surface of the adapter pipe section, and a large water drainage long hole is formed below the adapter pipe overflow holes; the sand-settling drainage box is a rectangular box body with a movable box cover, a water inlet long hole corresponding to the large drainage long hole is formed in the back of the sand-settling drainage box, namely the upper part of the binding surface of the sand-settling drainage box and the adapter pipe section, the lower part of the sand-settling drainage box is divided into a sand settling area and a drainage area by a sand blocking ridge, a drainage hole is formed in a bottom plate of the drainage area, and a row of overflow holes which are completely the same as the adapter pipe section are formed in the front of the standard pipe section; pipe end sealing plates are arranged at the end surface pipe orifices of the standard pipe sections at the foremost end part and the rearmost end part of the whole overflow channel.

The box body length of the desilting drainage box is greater than the length of the large drainage long hole of the transfer pipe section, and the length of the desilting area at the bottom of the desilting drainage box is greater than the length of the drainage long hole.

The sand-settling drainage box is characterized in that hooks are arranged on two side plates of the sand-settling drainage box, hanging holes are formed in the front face of the adapter tube section, the hooks are hung and buckled in the hanging holes, and the bottom of the sand-settling drainage box is 60-100 mm lower than the bottom of the adapter tube section.

The movable box cover of the sand-settling drainage box is provided with an upward 90-degree folded edge, the upper edge of the folded edge is folded into a 90-degree handle folded edge, and the folded edge is arranged on one side close to the joint pipe section.

And a flange plate joint is arranged at the drainage hole of the sand-settling water tank.

And a plurality of pear-shaped hanging holes are arranged on the wall plates on the back surfaces of the transfer pipe section and the standard pipe section in parallel.

The connecting pipe section and the standard pipe section are both provided with decorative baffles, and the decorative baffles are fixed on the connecting pipe section and the standard pipe section through connecting fixing holes and fixing screws arranged on the lower edge.

The upper edge of the decorative baffle is provided with a bend; the angle of the bend is 30-90 degrees.

The mounting method of the concealed overflow drain device comprises the following steps:

a: firstly, determining the number of required adapter pipe sections, standard pipe sections and matched sand-settling drainage boxes and roadbed at an installation road section according to a specific construction site; a drainage pipeline is preset in a rainwater garden below the roadbed;

b: the transfer pipe section and the standard pipe section are connected in series by using the connecting clamping plate and the fixing screws, so that the bent part of the upper edge of the decorative plate can effectively shield the upper edge of the roadbed;

c: cleaning the side face of the roadbed with the total length equal to that of the installation pipe section, and leveling the side face of the roadbed by using plastering mortar;

d: drilling holes in the side face of the roadbed, wherein the hole positions need to correspond to the pear-shaped hanging holes, and the distance between the lower edges of the overflow holes and the road surface is not less than 100mm; fixing a nylon anchor bolt component on the side surface of the roadbed, and directly hanging a transfer pipe section or a standard pipe section on the nylon anchor bolt component through a pear-shaped hanging hole to finish the fixing of the transfer pipe section and the standard pipe section;

e: hanging the sand settling drainage box on a hanging hole of the transfer pipe section through a hook to complete the construction of the whole overflow ditch; installing a flange joint on a drain hole at the bottom of the desilting drain box and connecting the flange joint with a pipe orifice of a preset drain pipe in a rainwater garden in butt joint; so that the sand settling drainage tank is communicated with a drainage pipeline; the bottom of the desilting drainage box is required to be 60-100 mm lower than the bottom of the transfer pipe section; finally, covering the movable box cover on the sand settling and water draining box;

f: burying the drainage pipeline and the sand-settling drainage box by soil, burying most of the transfer pipe section and the standard pipe section under the soil, and reserving a decorative baffle and an overflow hole above the soil layer;

g: paving the pavement bricks: the first row of pavement bricks is preferably paved from the decorative baffle of the overflow channel.

The invention has simple structure and convenient field installation, is suitable for being installed at the junction of hardened ground such as roads or squares and rainwater gardens in a concealed way, and is easy to maintain. Due to the design of the desilting and draining box, the water flowing into the municipal pipeline can be ensured not to contain a large amount of silt. The invention can replace the original overflow well of the rainwater garden, not only realizes the utilization of rainwater, but also can be integrated with the landscape of the rainwater garden, and ensures the effect of beautifying the environment.

Description of the drawings:

FIG. 1 is an exploded view of the apparatus of the present invention

FIG. 2 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 1 according to the present invention

FIG. 3 is a sectional view showing the internal structure of a sand settling tank of the apparatus of the present invention

FIG. 4 is a schematic front view of a transfer section of the apparatus of the present invention

FIG. 5 is a schematic view of the back side of the adapter section and the standard section of the apparatus of the present invention

FIG. 6 is a schematic view of the implementation of the installation method of the present invention

The specific implementation mode is as follows:

the invention will be further described with reference to fig. 1, 2, 3, 4, 5 and 6:

the invention needs to design an overflow device which does not need building or pouring on site and is completely a metal structural member, can be arranged at the edge of the rainwater garden in a concealed and convenient manner, and functionally, the overflow device can effectively replace the existing overflow well, is simple, fashionable and concealed in appearance, and is easy to install, maintain and expand.

Based on the design concept, in the embodiment, the concealed overflow drain device comprises one or more adapter pipe sections 1, sand settling drainage boxes 2 and a plurality of standard pipe sections 3, wherein the number of the sand settling drainage boxes corresponds to that of the adapter pipe sections. In the embodiment, the lengths and the cross-sectional structures of the transfer pipe section 1 and the standard pipe section 3 are the same; the adapter tube section 1 is connected with the sand settling drainage box 2 in parallel; the transfer pipe section 1 and the plurality of standard pipe sections 3 are connected in series through a connecting clamping plate 4 of a channel steel structure arranged at a pipe orifice. Thus, the transferred pipe section 1, the desilting drainage box 2 and the standard pipe section 3 are spliced together to form an overflow ditch.

The series connection of the transfer pipe section 1 and the standard pipe section 3 can meet the use requirements of different overflow flows, generally, the rainwater garden has a large catchment area and large overflow flow, the number of the transfer pipe section 1 and the standard pipe section 3 connected in series is large, and the boundary line between the hard ground required by the installation of the pipe sections and the rainwater garden is long. The main purpose of the sand-settling water tank is to settle the silt entering the rainwater of the transfer pipe section 1 and the standard pipe section 3, and reduce the possibility that municipal sewer pipelines are blocked by the silt.

In this embodiment, the transfer pipe section 1 and the standard pipe section 3 are both rectangular flat pipes and are made of stainless steel. In order to prevent water collected in the rainwater garden 9 from overflowing the road surface during heavy rainstorms, a row of overflow holes 11 or 31 are arranged at the upper parts of the front surfaces of the adapter pipe section 1 and the standard pipe section 3, and a large water drainage long hole 15 is arranged below the adapter pipe overflow hole 11. The rainwater overflowing into the overflow hole can enter the desilting drainage box 2 through the drainage long hole 15. Therefore, in the embodiment, the box body length of the sand-settling drainage box 2 is the sum of the sand-settling area and the drainage area at the bottom of the box body, and the length of the sand-settling area is greater than the length of the large drainage long hole 15 of the transfer pipe section 1.

The sand-settling drainage box 2 is a rectangular box body with a movable box cover 22 and is also made of stainless steel. The upper part of the back of the desilting drainage box 2 is provided with a water inlet long hole 21 corresponding to the large drainage long hole 15, and the back of the desilting drainage box 2 is attached to the front of the adapter pipe section to form parallel connection. Rainwater can enter the desilting drainage box 2 through the drainage long hole 15 and the butted water inlet long opening 21. In order to facilitate the installation of the desilting drainage box, hooks 223 are arranged on two side plates of the desilting drainage box 2, hanging holes 16 are arranged on the front surface of the adapter tube section 1, and the hooks 223 are hung and buckled in the hanging holes.

The lower portion of the sand-settling drainage box 2 is divided into a sand-settling area 212 and a drainage area 213 by a sand-blocking sill 211, and in this embodiment, the sand-settling area 212 is larger than the drainage area 213. A drain hole 214 is arranged on the bottom plate of the drain region 213, and a flange joint 215 is arranged at the drain hole 214 of the desilting drain box 2. During overflow, water overflowing the overflow holes 11 or 31 flows to the large long drainage hole 15 along the bottom of the pipe section, flows into the sand settling area 212 through 15 and 21, then flows into the drainage area 213 after overflowing the sand blocking ridge 211, and then rainwater can enter the drainage pipeline 8 through the drainage hole 214 and the flange joint 215 arranged at the lower part of the drainage hole.

The standard pipe section 3 is a rectangular flat pipe with the cross section structure and the length of one end face identical to those of the adapter pipe section 1 and is made of the same material as the adapter pipe section. A row of overflow holes 31 with the same height as the transfer pipe section 1 are arranged on the front surface of the standard pipe section 3; and pipe end sealing plates 5 are arranged at the end surface pipe orifices of the standard pipe sections 3 at the foremost end and the rearmost end, so that the two ends of the whole overflow channel are sealed. In specific implementation, the tube end closing plates 5 can be welded at the tube openings of the standard tube sections arranged at the head end and the tail end of the tube sections in advance.

A plurality of pear-shaped hanging holes are arranged in parallel on the wall plate on the back surface of the adapter tube section 1, as shown in fig. 5. A plurality of pear-shaped hanging holes are also arranged at the same positions on the back surface of the standard pipe section 3. When the transfer pipe section 1 and the standard pipe section 3 are connected in series, all the pear-shaped hanging holes are in a horizontal position.

In order to conveniently clean the silt in the sand-settling water tank, the position of the movable tank cover 22 of the sand-settling water tank 2 is found out from the soil covering, an upward 90-degree folding edge 221 is arranged on the movable tank cover 22 of the sand-settling water tank 2, a 90-degree handle folding edge 222 is folded at the upper edge of the folding edge 221, and the folding edge is arranged on one side close to the connecting pipe section 1. The flap is conveniently lifted by the handle flap 222.

The adapter tube section 1 and the standard tube section 3 are both provided with decorative baffles 6, and the decorative baffles 6 are fixed on the adapter tube section 1 and the standard tube section 3 through connecting and fixing holes 61 and fixing screws arranged at the lower edges. The upper edge of the decorative baffle 6 is provided with a bend 62. The decorative baffle 6 can be made of stainless steel with good weather resistance, or the surface of the decorative baffle is treated by baking finish after being made of aluminum alloy plates, the color of the baking finish is preferably grass green or consistent with the color of a pavement material, and the decorative baffle can be integrated with the rainwater garden landscape.

In this embodiment, the installation method of the device of the present invention includes the following steps:

a: firstly, determining the number of required transfer pipe sections 1, standard pipe sections 3 and matched sand-settling drainage boxes 2 and installing road subgrade 7 according to a specific construction site; a drainage pipe 8 is preset in the storm garden 9 below the foundations. As shown in fig. 6, said drainage pipes 8 may be constituted by vertical pipes, elbows, cross pipes, etc. and then connected to the municipal storm water network pipes.

B: connecting the adapter tube section 1 and the standard tube section 3 in series by using the connecting clamping plate 4 and the fixing screw 41, and enabling the bent part 62 of the upper edge of the decorative baffle 6 to be close to the upper edge of the roadbed; in order to match the external contour shape of the roadbed, the bending 62 of the decorative baffle 6 can adopt a 45-60 degree angle or a 90 degree bending, and can also adopt a bending which is bent twice into 90 degrees.

C: cleaning the side face of the roadbed with the total length equal to that of the installation pipe section, and leveling the side face of the roadbed by using plastering mortar;

d: drilling holes in the side face of the roadbed, wherein the hole positions need to correspond to the pear-shaped hanging holes 14, and the distance between the lower edge of each overflow hole and the road surface is not less than 100mm; fixing a nylon anchor bolt assembly 71 on the side surface of the roadbed, and directly hanging the transfer pipe section 1 or the standard pipe section 3 on the nylon anchor bolt assembly 71 through a pear-shaped hanging hole to finish the fixation of the transfer pipe section 1 or the standard pipe section 3 and the road surface;

e: hanging the desilting drainage box 2 on a hanging hole 16 of the transfer pipe section 1 through a hook 223; a flange plate joint 215 is arranged on a drain hole 214 at the bottom of the sand settling and drainage box 2 and is connected with a pipe orifice of a preset drainage pipe 8 in a butted rainwater garden; so that the sand settling drainage box 2 is communicated with a drainage pipeline; the bottom of the desilting drainage box 2 is required to be 60mm-80mm lower than the bottom of the transfer pipe section 1; finally, the movable box cover 22 is covered on the sand-settling drainage box 2;

f: burying the drainage pipeline and the sand-settling drainage box by using soil, burying most of the transfer pipe section 1 and the standard pipe section 3 under the soil, and reserving a decorative baffle and an overflow hole above the soil layer;

g: paving the pavement bricks: the first row of pavement bricks is preferably paved from the decorative baffle of the overflow channel.

The invention realizes the following technical effects:

the water level in the rainwater garden can be controlled not to overflow the road surface when the rainwater is extremely heavy; when the overflow device is installed, the overflow hole is about 100mm lower than the hardened ground, and the overflowing water enters the drainage pipeline through the overflow hole, the transfer pipe section, the standard pipe section and the sand-settling drainage box, so that the overflow device is connected to the municipal rainwater pipe network. The device part of the invention should be easy to install. Generally, rainwater collected in a rainwater garden slowly infiltrates into the ground to conserve groundwater. In the event of a heavy storm, when the water level exceeds the overflow aperture, overflow begins. When the water level reaches the height of the road surface, the overflow amount reaches the maximum value, and the maximum overflow amount can be ensured not to be less than the difference between the water collection amount and the lower seepage amount of the rainwater garden as long as the length, the installation height, the specification of a drainage pipeline and the like of the overflow channel are reasonably selected; after the sand-settling drainage box is put into use for half a year, the movable box cover of the sand-settling drainage box can be opened, and the cleaning of the sediment settled in the box is very convenient.

Claims (8)

1. A hidden overflow drain device is characterized by comprising one or more sections of adapter pipe sections (1), a sand-settling drainage box (2) matched with the number of the adapter pipe sections and an overflow drain formed by splicing a plurality of sections of standard pipe sections (3), wherein the lengths and section structures of the adapter pipe sections (1) and the standard pipe sections (3) are the same; the adapter tube section (1) is connected with the desilting drainage box (2) in parallel; the adapter tube sections (1) are connected with the standard tube sections (3) in series through connecting clamping plates (4) of channel steel structures arranged at tube openings; the adapter tube section (1) is a rectangular flat tube, a row of adapter tube overflow holes (11) are formed in the upper portion of the front face of the adapter tube section (1), and a large water drainage long hole (15) is formed below the adapter tube overflow holes (11); the sand-settling drainage box (2) is a rectangular box body with a movable box cover (22), a water inlet long hole (21) corresponding to the large drainage long hole (15) is arranged on the back surface of the sand-settling drainage box (2), namely the upper part of the joint surface of the sand-settling drainage box and the adapter pipe section, the lower part of the sand-settling drainage box (2) is divided into a sand-settling area (212) and a drainage area (213) by a sand blocking ridge (211), a drainage hole (214) is arranged on the bottom plate of the drainage area (213), and a row of overflow holes (31) which are completely the same as the adapter pipe section (1) are arranged on the front surface of the standard pipe section (3); and pipe end closing plates (5) are arranged at the end surface pipe orifices of the standard pipe sections (3) at the foremost end part and the rearmost end part of the whole overflow channel.

2. The concealed overflow drain device according to claim 1, wherein the length of the body of the sand trap tank (2) is longer than the length of the large drain hole (15) of the transfer pipe section (1), and the length of the sand trap area (212) at the bottom of the sand trap tank (2) is longer than the length of the large drain hole (15).

3. The concealed overflow drain device according to claim 1, wherein hooks (223) are provided on two side plates of the sand-settling drainage tank (2), a hanging hole (16) is provided on the front surface of the transfer pipe section (1), the hooks (223) are hung and fastened in the hanging hole, and the bottom of the sand-settling drainage tank is 60-100 mm lower than the bottom of the transfer pipe section (1).

4. The concealed overflow drain device according to claim 1, 2 or 3, wherein the movable cover (22) of the sand-settling drainage box (2) is provided with an upward 90-degree folded edge (221), and a 90-degree handle folded edge (222) is folded at the upper edge of the folded edge (221), and the folded edge is arranged at one side close to the connecting pipe section (1).

5. The concealed overflow drain device according to claim 1, wherein a flange joint (215) is provided at the drain hole (214) of the sand settling tank (2).

6. The concealed overflow launder device according to claim 1, characterised in that a plurality of pear-shaped hanging holes (14) are arranged in parallel in the wall of the back of both the adapter pipe section (1) and the standard pipe section (3).

7. The concealed overflow drain device according to claim 1, wherein the adaptor pipe section (1) and the standard pipe section (3) are provided with decorative baffles (6), and the decorative baffles (6) are fixed on the adaptor pipe section (1) and the standard pipe section (3) through connecting fixing holes (61) and fixing screws arranged on the lower edges.

8. Concealed overflow drain device according to claim 7, characterized in that the decorative flap (6) is provided with a bend (62) at its upper edge; the angle of the bend (62) is 30-90 degrees.

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