CN216810660U - Combined drainage structure for box type building module - Google Patents

Abstract

The utility model discloses a combined drainage structure for a box type building module, which comprises: the water-retaining device comprises a box body, wherein a water baffle is arranged at the top of the box body, a water drainage groove extending forwards and backwards is arranged at the top of the box body, and a water drainage hole is formed in the front end and/or the rear end of the water drainage groove; the drainage plate is arranged at the top of the box body and is positioned in the middle of the box body, the middle of the drainage plate gradually extends downwards towards the left end and the right end, and the left end and the right end of the drainage plate respectively extend to the two drainage grooves; the apron, the apron is equipped with open first recess down, the apron first recess cover two adjacent two of box on the breakwater, the collection of rainwater can be accelerated in the setting of breakwater and drain bar to in leading rainwater to the water drainage tank, from the water drainage tank in discharge tank box, the apron be provided with do benefit to and avoid between the adjacent box of rainwater infiltration and lead to influencing the problem appearance of resident family's daily life.

Description

Combined drainage structure for box type building module

Technical Field

The utility model relates to the technical field of modular buildings, in particular to a combined drainage structure for a box type building module.

Background

A box house is a mobile, reusable building product, also known as a "combo box house" or "containerized house". Due to the fact that the box house frame is firm, many people can change the box house into a temporary office or a house. The box type house takes the box body as a basic unit, can be used independently, can also form a spacious use space through different combinations in the horizontal and vertical directions, and can be placed in a stacked mode in the vertical direction.

For the flexibility of guaranteeing the equipment, the roof in box room is the flat top setting mostly, and under rainwater weather, there may be the too much problem of ponding in the roof, and the rainwater can flow down through the gap between two adjacent boxes and lead to the problem of rainwater infiltration to appear.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art.

The utility model provides a combined drainage structure for box-type building modules, which comprises a box body, wherein the box body is provided with a plurality of water baffles, the top of the box body is provided with water drainage grooves extending forwards and backwards, the left end and the right end of the box body are both provided with water drainage grooves, the front end and/or the rear end of each water drainage groove are/is provided with a drainage hole, the drainage holes are communicated with the water drainage grooves, and one ends of the drainage holes, far away from the water drainage grooves, are provided with openings; the drainage plate is arranged at the top of the box body and is positioned in the middle of the box body, the drainage plate gradually extends downwards from the middle of the drainage plate to the left end and the right end, and the left end and the right end of the drainage plate respectively extend to the two drainage grooves; the cover plate is provided with a first groove which is opened downwards, the cover plates are arranged at two adjacent boxes, and the first grooves of the cover plates cover two adjacent water baffles of the two boxes.

The combined drainage structure for the box type building module provided by the embodiment of the utility model at least has the following beneficial effects: the top of the box body is provided with a water baffle which is arranged around the upper edge of the box body, the left end and the right end of the box body are both provided with drainage grooves, the front end and/or the rear end of each drainage groove are/is provided with drainage holes, the top of the box body is provided with a drainage plate, the middle part of each drainage plate gradually extends downwards towards the left end and the right end, rainwater can be drained into the drainage grooves along the inclination of the drainage plates and is drained out of the box body from the drainage holes in rainy days, and the arrangement of the drainage plates and the water baffle can accelerate the collection and drainage of the rainwater, so that the condition of accumulated water on a roof can be relieved; the apron is equipped with down open first recess, all is provided with the apron between two adjacent boxes, and the first recess of apron covers on two breakwaters that two boxes are adjacent, and the gap between two adjacent boxes can be sealed to the apron, is favorable to avoiding the rainwater to flow down along the clearance between two boxes and leads to the problem of infiltration to appear, and this a combination drainage structures for box building module is favorable to improving box building's drainage performance, satisfies people's daily life demand.

According to some embodiments of the utility model, the upper surface of the drain plate is provided with a plurality of water guide grooves extending left and right, and the plurality of water guide grooves are arranged at intervals in the front-back direction.

The upper surface of drain bar is equipped with many and is about the diversion channels that extend, and many diversion channels are interval arrangement around being, and the setting of diversion channel can play the guide effect to the rainwater, is favorable to making the rainwater along the inclination landing of diversion channel and guide to the left and right sides drainage channel in, the rainwater can follow the box that discharges of drainage hole department, satisfies this a combination drainage structures's for box building module user demand.

According to some embodiments of the utility model, the water baffle further comprises a connecting assembly, the connecting assembly comprises a threaded piece, the upper end of the water baffle is provided with a first screw hole extending up and down, the cover plate is provided with a plurality of first mounting holes, the first mounting holes are arranged corresponding to the first screw holes, and the threaded piece penetrates through the first mounting holes and then is in threaded connection with the first screw holes.

This a combination drainage structures for box building module still includes coupling assembling, coupling assembling includes the screw, be provided with the first screw that extends about being on the breakwater, when the apron covers on two adjacent breakwaters, first mounting hole on the apron is relative with first screw, user's accessible screw pass behind the first mounting hole with first screw threaded connection, thereby realize the fixed connection of apron and box, be favorable to avoiding under the rainwater weather, the problem that the skew appears in the apron and is leaded to the rainwater infiltration with being connected of box, and threaded connection's mode is comparatively simple, and is reliable, satisfy this a combination drainage structures's for box building module user demand.

According to some embodiments of the utility model, the connection assembly further comprises a sealing sleeve; the sealing sleeve is sleeved on the threaded part and is respectively abutted against the threaded part and the cover plate.

The connecting assembly further comprises a sealing sleeve, the sealing sleeve corresponds to the threaded part, the sealing sleeve is sleeved on the threaded part, a user can enable the threaded part to sequentially penetrate through the sealing sleeve and the first mounting hole and then be in threaded connection with the first screw hole, the sealing sleeve is respectively abutted against the threaded part and the cover plate, the gap between the threaded part and the first mounting hole can be sealed through the waterproof performance of the sealing sleeve, and the problem that rainwater penetrates through the gap between the threaded part and the first mounting hole is avoided.

According to some embodiments of the utility model, the connecting assembly further comprises a connecting angle piece, the connecting angle piece is provided with a second groove in a cross shape or a T shape, the second groove is arranged to be open downwards, the folding corners of the water baffles adjacent to the plurality of box bodies are provided with the connecting angle piece, the second groove covers the folding corners of the adjacent water baffles, and the connecting angle piece is connected with the cover plate.

Coupling assembling still includes connecting the corner fitting, the dog-ear department of the adjacent breakwater of a plurality of boxes all is provided with connecting the corner fitting, the dog-ear department of adjacent box can adopt the connecting the corner fitting of T font to connect about, the dog-ear department of four adjacent boxes can adopt criss-cross connecting the corner fitting to connect about in the front, and connect the corner fitting and meet with the apron, connecting the setting of corner fitting cooperation apron, be favorable to the clearance between the airtight box, be favorable to avoiding the rainwater to pass through the clearance infiltration between the box and influence the problem appearance of resident family's daily life.

According to some embodiments of the utility model, the utility model further comprises a first drainage pipe, the front end and the rear end of the drainage groove are provided with drainage holes, two adjacent drainage holes of the two box bodies are communicated in the front and the rear two adjacent box bodies, the two adjacent drainage holes of the two box bodies are provided with first drainage pipes, and the first drainage pipes penetrate through the two adjacent drainage holes.

This a combination drainage structures for box building module still includes first drain pipe, in two adjacent boxes in the front, two adjacent wash ports intercommunication of two boxes, and all wear to be equipped with first drain pipe in two drain holes, the first drain pipe of rainwater accessible realizes assembling between the box, and being provided with of first drain pipe does benefit to and avoids the problem appearance between the rainwater infiltration box, satisfies this a combination drainage structures's for box building module user demand.

According to some embodiments of the utility model, the utility model further comprises waterproof rubber strips, the front end and the rear end of the first drainage pipe are respectively provided with the waterproof rubber strips, and the waterproof rubber strips are connected with the first drainage pipe and the drainage hole.

The front end and the rear end of the first drainage pipe are respectively provided with a waterproof rubber strip, the waterproof rubber strips are respectively connected with the first drainage pipe and the drainage holes, the waterproof rubber strips are arranged to be beneficial to avoiding the problem that water in the drainage grooves permeates through gaps between the first drainage pipe and the drainage holes, and the waterproof and drainage performances of the box-type building adopting the combined drainage structure for the box-type building modules are favorably improved.

According to some embodiments of the present invention, the present invention further comprises a second drain pipe, the second drain pipe extending up and down; and the box bodies positioned at the front end and the rear end are respectively provided with a second drain pipe, and the upper end of the second drain pipe is communicated with the drain hole.

This a combination drainage structure for box building module still includes the second drain pipe, and the rainwater assembles the back between adjacent box in the front and back to discharge in the box department of front end and rear end, all be provided with the second drain pipe on being located the box of front end and rear end, the upper end and the wash port intercommunication of second drain pipe, thereby lead the second drain pipe department of horizontal flow's rivers to vertical setting, be favorable to realizing the drainage function on roof, alleviate the condition of roof ponding.

According to some embodiments of the utility model, the utility model further comprises a water storage tank, and the lower end of the second drain pipe is communicated with the water storage tank.

The lower extreme and the storage water tank intercommunication of second drain pipe, the collection of partial rainwater can be realized in setting up of storage water tank to can be used for irrigating, washing of bathroom with the rainwater of partial collection, thereby realize the function of water conservation, accord with the theory of environmental protection.

According to some embodiments of the present invention, the present invention further includes a waterproof laminate provided on both an inner circumferential surface and an inner upper surface of the case.

This a combination drainage structure for box building module still includes waterproof plywood, and the interior week of box and inside upper surface department all are provided with waterproof plywood, and waterproof plywood be provided with do benefit to and avoid in the rainwater infiltration box and influence the daily life's of resident family problem to appear, satisfy this a combination drainage structure's for box building module user demand.

Additional aspects and advantages of the utility model 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 utility model.

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 perspective view of a combined drainage structure for a box-type building module according to an embodiment of the present invention;

FIG. 2 is a top plan view of a modular drainage structure for the box building module shown in FIG. 1;

FIG. 3 is a front view of a modular drainage structure for the box building module shown in FIG. 1;

FIG. 4 is an exploded view of a modular drainage structure for a box building module according to an embodiment of the present invention;

fig. 5 is a schematic perspective view of a single box body of a combined drainage structure for a box-type building module according to an embodiment of the present invention.

In the drawings: 100-a box body; 110-a water baffle; 111-a first screw hole; 120-a drainage channel; 121-drain hole; 200-a drain board; 210-a flume; 300-a cover plate; 310-a first mounting hole; 410-a screw; 420-connecting corner fittings.

Detailed Description

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

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings only for the convenience of description of the present invention and simplification of the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of the terms are not limited to a certain number, and a plurality of the terms are two or more, and the terms larger, smaller, larger, and the like are understood to include the number of the terms, and the terms larger, smaller, and the like are understood to include the number of the terms. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated. Additionally, appearing throughout and/or representing three side-by-side scenarios, e.g., A and/or B represents a scenario satisfied by A, a scenario satisfied by B, or a scenario satisfied by both A and B.

In the description of the present invention, there is a phrase containing a plurality of parallel features, wherein the phrase defines the closest feature, for example: b, C disposed on A, E connected to D, B disposed on A, E connected to D, C is not limited; however, terms indicating relationships between features such as "spaced apart", "arranged in a ring", etc. do not fall within this category. The phrase preceded by the word "mean" indicates that it is a definition of all features in the phrase, and if it is B, C, D, it indicates that both B, C and D are located on a.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

An embodiment of the present invention will be described below with reference to fig. 1 to 5.

First embodiment, referring to fig. 1 to 3, an embodiment of the present invention provides a combined drainage structure for a box-type building module, including: a case 100, a drain plate 200, and a cover plate 300.

Referring to fig. 1, a plurality of boxes 100 are provided, and in the box type building module, the plurality of boxes 100 can be stacked front to back, left to right, thereby forming a wide residential area and meeting the daily life requirements of people. Specifically, the box body 100 positioned at the top of the box type building is provided with the water baffle 110, the water baffle 110 is arranged around the upper edge of the box body 100, and the water baffle 110 is arranged to facilitate the collection of roof rainwater and the reduction of roof water accumulation.

Referring to fig. 5, the top of the box 100 is provided with two drainage channels 120 extending forwards and backwards, the two drainage channels 120 are respectively located at the left end and the right end of the box 100, the front end and the rear end of the drainage channel 120 respectively extend to the water baffle 110 at the front end and the rear end, the front end and/or the rear end of the drainage channel 120 are provided with drainage holes 121, the drainage holes 121 extend forwards and backwards, the drainage holes 121 are communicated with the drainage channels 120, and one ends of the drainage holes 121 far away from the drainage channels 120 are open, so that water in the drainage channels 120 can be conveniently drained away; of course, the opening of the drain hole 121 may be externally connected to a drain pipe extending up and down.

Referring to fig. 3, the drain board 200 gradually extends downwards from the middle portion to the left and right ends, that is, the middle portion of the drain board 200 is higher than the left and right ends, the drain board 200 may be triangular or semicircular, the drain board 200 is disposed at the top of the box 100, the drain board 200 is fixedly connected to the box 100, if the drain board is integrally formed during factory manufacturing or connected to the box 100 by welding, the drain board 200 is disposed in the middle of the box 100, and the left and right ends of the drain board 200 extend to two drain grooves 120 respectively. Under rainwater weather, rainwater slides down along the inclined surface of the drainage plate 200, the drainage plate 200 is arranged to accelerate the collection of rainwater, the rainwater is guided to the drainage grooves 120 at two sides, and the rainwater in the drainage grooves 120 flows through the drainage holes 121 and is drained out of the box body 100, so that the drainage function of the combined drainage structure for the box-type building modules is realized, and the ponding condition at the top of the box-type house is reduced.

Specifically, the upper surface department of drain bar 200 is provided with many and is about the diversion groove 210 that extends, and many diversion grooves 210 are interval arrangement around being, and diversion groove 210's setting can play the guide effect to the rainwater, is favorable to making the rainwater to flow along diversion groove 210's inclination to the right-left direction, and down flow to drainage channel 120 department, the rainwater is followed wash port 121 and is located discharge box 100, satisfies this a combination drainage structures's that is used for box building module user demand. The drain groove 120 is a rectangular groove or a circular arc groove.

Referring to fig. 4, the cover plate 300 is provided with a first groove opening downwards, the cover plate 300 is disposed at each of two adjacent boxes 100, and the first groove of the cover plate 300 covers two water baffles 110 adjacent to each of the two boxes 100, for example, between two adjacent boxes 100, the cover plate 300 covers two water baffles 110 on the left and right of the two boxes 100, the first groove covers the two water baffles 110, which is beneficial to preventing rainwater from penetrating into a gap between the two boxes 100, and the cover plate 300 can be locked and pre-installed.

This a combination drainage structures for box-type building module still includes coupling assembling, coupling assembling includes screw 410 and seal cover, the seal cover can adopt rubber, waterproof material finished pieces such as plastics, the upper end of breakwater 110 is provided with the first screw 111 that is extension from top to bottom, be provided with first mounting hole 310 on the apron 300, when apron 300 covers on two adjacent breakwater 110, first mounting hole 310 corresponds first screw 111 and sets up, the quantity of first mounting hole 310 corresponds with first screw 111 promptly, and the shape of first mounting hole 310 does not cause with first screw 111 to block with the size. The screw 410 may be provided as a screw.

The user can pass the screw with first screw 111 threaded connection behind seal cover and the first mounting hole 310 in proper order, and being provided with of screw 410 does benefit to realizing the fixed of apron 300 and box 100, is favorable to avoiding the apron 300 slippage and leads to the problem appearance between the rainwater infiltration box 100. The sealing sleeve is sleeved on the threaded part 410 and is respectively abutted against the threaded part 410 and the cover plate 300, and the sealing sleeve is arranged to seal a gap between the threaded part 410 and the first mounting hole 310, so that the problem that rainwater permeates into the box body 100 through the gap between the threaded part 410 and the first mounting hole 310 is avoided, and the integral waterproof performance of the box-type building adopting the combined drainage structure for the box-type building modules is enhanced.

Further preferably, the connection assembly further comprises a connection angle 420, the connection angle 420 is provided with a second groove in a cross shape or a T shape, the second groove is open downwards, and the connection angle 420 is used for covering the folding corners of the adjacent water baffles 110 of the plurality of boxes 100. For example, the two adjacent boxes 100 on the left and right can be connected by using a T-shaped connecting angle 420, and the connecting angle 420 is clamped at the folding angle of the two adjacent water baffles 110. For example, the four adjacent boxes 100 may be connected by a cross-shaped connecting corner member 420, and the connecting corner member 420 may be clamped at the corner of the four adjacent water baffles 110. The second groove covers the adjacent water guard 110, and the connecting angle 420 is connected to the cover plate 300, for example, the connecting angle 420 and the cover plate 300 are overlapped up and down, or the connecting angle 420 and the cover plate 300 are integrally formed, which is beneficial to avoiding the infiltration of rainwater. The connection corner fitting 420 is engaged with the cover plate 300, which is advantageous in preventing rainwater from infiltrating through a gap between adjacent cases 100.

Further preferably, the combined drainage structure for the box-type building module further comprises a first drainage pipe, the front end and the rear end of the drainage channel 120 are both provided with drainage holes 121, in the front and the rear two adjacent box bodies 100, the two adjacent drainage holes 121 of the two box bodies 100 are communicated, the two adjacent drainage holes 121 of the two box bodies 100 are both provided with a first drainage pipe, and the first drainage pipe is arranged in the two adjacent drainage holes 121 in a penetrating manner.

If nine tanks 100 are arranged in a 3 x 3 array in a top view to form a box type building module, rainwater accumulated in the tank 100 located at the middle of the box type building module can flow to the tank 100 located at the periphery of the box type building module through the first drain pipe. Rainwater can be gathered through the first drainage pipe and flows away from the peripheral drainage holes 121 of the box-type building modules, the first drainage pipe is arranged to avoid the problem that rainwater permeates between the box bodies 100, and the use requirement of the combined drainage structure for the box-type building modules is met. The first drain pipe may be a plastic waterproof material.

Further preferably, this a combination drainage structures for box building module still includes waterproof stripe, and both ends all are equipped with waterproof stripe around the first drain pipe, and waterproof stripe all meets with first drain pipe and wash port 121, and waterproof stripe's being provided with does benefit to and avoids the problem of the water in the water drainage tank 120 between the clearance infiltration box 100 between first drain pipe and the wash port 121 to appear, is favorable to improving the waterproof and drainage performance that adopts this a combination drainage structures for box building module's box building. The waterproof rubber strip can be made of waterproof parts such as rubber.

Further preferably, this a combination drainage structures for box building module still includes the second drain pipe, the second drain pipe can be the polyvinyl chloride pipe, the second drain pipe is the setting of extending from top to bottom, the rainwater assembles the back between front and back adjacent box 100, can discharge in the wash port 121 department that is located the box 100 of front end and rear end, it all is provided with the second drain pipe on the side that is located the box 100 of front end and rear end, the upper end and the wash port 121 intercommunication of second drain pipe, thereby guide the rivers of transverse flow to the second drain pipe department of vertical setting, be favorable to realizing the drainage function on roof, alleviate the condition of roof ponding.

Further preferably, the combined drainage structure for the box-type building module further comprises a water storage tank, and the lower end of the second drainage pipe is communicated with the water storage tank. The storage water tank can realize the collection of partial rainwater to can be used for uses such as irrigation, bathroom washing with partial rainwater of collecting, thereby realize the function of water conservation, accord with the theory of environmental protection.

Specifically, the water storage tank is provided with an overflow port, when the water level of the water storage tank is higher than the overflow port, redundant rainwater is discharged out of the water storage tank from the overflow port, and the rainwater discharged out of the water storage tank can be discharged into a sewer.

Further preferably, this a combination drainage structures for box building module still includes waterproof plywood, and the inner peripheral surface and the inside upper surface department of box 100 all are provided with waterproof plywood, and the effect of isolated rainwater can be played in the setting of waterproof plywood, is favorable to avoiding the rainwater to permeate in the box 100 and influences the problem appearance of resident family's daily life, satisfies this a combination drainage structures's for box building module user demand. Specifically, the waterproof laminate can be a polyethylene laminate, a polyvinyl chloride laminate or other sheet materials.

While the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined by the appended claims.

Claims (10)

1. A composite drainage structure for a box building module, comprising:

the water drainage device comprises a plurality of box bodies, wherein the top of each box body is provided with a water baffle which is arranged around the upper edge of each box body, the top of each box body is provided with a water drainage groove extending forwards and backwards, the left end and the right end of each box body are provided with the water drainage grooves, the front ends and/or the rear ends of the water drainage grooves are provided with water drainage holes, the water drainage holes are communicated with the water drainage grooves, and one ends of the water drainage holes, far away from the water drainage grooves, are provided with openings;

the drainage plate is arranged at the top of the box body and is positioned in the middle of the box body, the drainage plate gradually extends downwards from the middle of the drainage plate to the left end and the right end, and the left end and the right end of the drainage plate respectively extend to the two drainage grooves;

the cover plate is provided with a first groove which is opened downwards, the cover plate is arranged at the positions of two adjacent boxes, and the first groove of the cover plate covers two adjacent water baffles of the two boxes.

2. The modular drainage structure for box-type building modules as claimed in claim 1, wherein the upper surface of the drainage plate is provided with a plurality of left and right-extending drainage grooves which are spaced apart from each other in a front-rear direction.

3. The modular drainage structure of claim 1, further comprising a connecting assembly, wherein the connecting assembly comprises a screw member, the upper end of the water baffle is provided with a first screw hole extending vertically, the cover plate is provided with a plurality of first mounting holes, the first mounting holes are corresponding to the first screw holes, and the screw member is threaded into the first screw holes after passing through the first mounting holes.

4. The composite drain structure for a boxed building module according to claim 3, wherein the connection assembly further comprises a sealing sleeve; the sealing sleeve is sleeved on the threaded part and is respectively abutted against the threaded part and the cover plate.

5. The modular drainage structure of claim 4, wherein the connection assembly further comprises a corner connector having a second groove with a cross shape or a T shape, the second groove is open downward, the corner connector is disposed at the corner of the water guard adjacent to the box, the second groove covers the corner of the water guard adjacent to the box, and the corner connector is connected to the cover plate.

6. The structure of any one of claims 1 to 5, further comprising a first drainage pipe, wherein the drainage holes are formed at both the front end and the rear end of the drainage channel, two adjacent drainage holes of two adjacent boxes are communicated with each other in the two adjacent boxes, and the first drainage pipe is formed at each of the two adjacent drainage holes of two adjacent boxes and is inserted into the two adjacent drainage holes.

7. The modular drainage structure for box building modules as in claim 6, further comprising waterproof strips disposed at both front and rear ends of the first drainage pipe, the waterproof strips being connected to the first drainage pipe and the drainage hole.

8. The modular drainage structure for box building modules as claimed in claim 7, further comprising a second drainage pipe extending up and down; the box body positioned at the front end and the rear end is provided with the second drain pipe, and the upper end of the second drain pipe is communicated with the drain hole.

9. The modular drainage structure for a box building module as in claim 8, further comprising a storage tank, the lower end of the second drainage pipe being in communication with the storage tank.

10. The modular drainage structure for box-type building modules as claimed in claim 9, further comprising a waterproof laminate provided on both the inner circumferential surface and the inner upper surface of the box body.

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