CN113958071B

CN113958071B - Drainage tank structure for steel structure building and installation method

Info

Publication number: CN113958071B
Application number: CN202111174357.8A
Authority: CN
Inventors: 徐俊杰
Original assignee: Zhangzhou Jiesheng Steel Structure Engineering Co ltd
Current assignee: Zhangzhou Jiesheng Steel Structure Engineering Co ltd
Priority date: 2021-10-09
Filing date: 2021-10-09
Publication date: 2024-03-15
Anticipated expiration: 2041-10-09
Also published as: CN113958071A

Abstract

The invention discloses a drainage tank structure for a steel structure building and an installation method thereof, comprising a drainage tank and a drainage joint, wherein the bottom of the drainage tank is provided with a drainage hole; the drainage connector is made of plastic materials and comprises a tubular part and an annular flanging integrally formed on the upper edge of the tubular part; the tubular part of the drainage joint penetrates through the drainage hole, the tubular part is connected with a drainage pipe, and the annular flanging is bonded and hermetically connected to the bottom of the drainage groove around the drainage hole. Compared with the prior art, the drainage connector made of plastic materials is simple and convenient to manufacture, can be conveniently arranged at the bottom of the drainage groove, and is corrosion-resistant and difficult to leak.

Description

Drainage tank structure for steel structure building and installation method

Technical Field

The invention relates to the field of steel structure buildings, in particular to a drainage tank structure for a steel structure building and an installation method.

Background

The cornice structure is a drainage structure in the sloping roof structure, and a hollow structure is formed between the cornice plate and the sloping roof through picking, so that accumulated water flowing down on the roof is discharged, and the accumulated water is prevented from entering the room through a gap of the supporting wall. A water collecting tank is arranged below the eave to receive rainwater flowing down from the roof, and a drain pipe is arranged on the water collecting tank to drain the rainwater downwards. The traditional drain pipe is connected with the water collecting tank by adopting welding connection or adopting metal to enclose into a tube shape and realizing the structure by arranging a bending structure on the cornice, but the installation is more troublesome, the bending structure of the metal plate is easy to corrode, and the installation has the defect that the gap is easy to leak.

Debris such as some leaves are also easily accumulated in the drainage groove, and if the leaf debris enters the drainage pipe, the drainage pipe is easy to be blocked, so that the drainage performance is affected. The traditional drainage tank structure still has the advantages that after rain stop, some ponding still is easy to accumulate in the drainage tank and can not be discharged, so that corrosion is continuously caused to the drainage tank and the drainage pipe structure.

The existing cornice structure also has the following defects: if the rainfall is too big, the rainwater in the water catch bowl can not in time be discharged, leads to the water level in the water catch bowl to rise, leads to the rainwater to drop in the water catch bowl from the eave, and easy spill causes the corridor of "drip tick" of water catch bowl below, influences result of use.

For the design that is provided with the rainwater in the water storage tank to the drain pipe and collect, if the rainwater is too big, the pipeline flow to the rainwater in the water storage tank is not enough in time to discharge the rainwater, also leads to the rainwater of water drainage tank not in time easily to discharge, leads to the water level in the water collection tank to rise and even the rainwater overflows from the water collection tank.

In view of this, the applicant has made intensive studies on the above-mentioned defects in the prior art.

Disclosure of Invention

The invention mainly aims to provide a drainage tank structure for a steel structure building and an installation method, and the drainage tank structure has the characteristics of convenience in installation and corrosion resistance.

In order to achieve the above object, the solution of the present invention is:

the drainage tank structure for the steel structure building comprises a drainage tank and a drainage joint, wherein a drainage hole is formed in the bottom of the drainage tank; the drainage connector is made of plastic materials and comprises a tubular part and an annular flanging integrally formed on the upper edge of the tubular part; the tubular part of the drainage joint penetrates through the drainage hole, the tubular part is connected with a drainage pipe, and the annular flanging is bonded and hermetically connected to the bottom of the drainage groove around the drainage hole.

Further, a metal blocking net is arranged above the drainage joint, the metal blocking net comprises a top plate, side walls and connecting columns, and filtering holes are formed in the top plate and the side walls; the side wall is formed on the periphery of the top plate and extends downwards, and the lower end of the side wall abuts against the bottom of the drainage groove; the middle part of the top plate is provided with a sinking groove, the upper end of the connecting column is connected with the lower surface of the top plate, and the connecting column stretches into the inner cavity of the tubular part of the drainage joint and is in propping connection with the inner cavity of the tubular part.

Further, a plurality of siphon channels are arranged in the drainage joint, the siphon channels extend from the inner wall surface of the tubular part to the lower surface of the annular flanging, each siphon channel is provided with a siphon inlet on the lower surface of the annular flanging, the siphon channels are provided with siphon outlets on the inner wall of the tubular part, and the siphon outlets are lower than the siphon inlets; the annular flange is adhered to the bottom of the drainage groove around the drainage hole through annular adhesive, and the siphon outlet is positioned at the outer side of the annular adhesive and is communicated with the water collecting space of the drainage groove.

Further, the drainage groove is provided with an inner side plate positioned below the roof board and an outer side plate positioned outside, a water blocking strip is arranged between the inner side plate and the roof board, and the upper end and the lower end of the water blocking strip are respectively and hermetically connected with the lower surface of the roof board and the upper end of the inner side plate; the anti-splash structure comprises a floating ball, a sliding rod, a sliding seat, a connecting rod and flexible water retaining cloth, wherein the sliding seat is fixedly connected to the inner side of the outer side plate, the sliding rod is slidably connected to the sliding seat along the vertical direction, the floating ball is mounted on the sliding rod above the sliding seat, the connecting rod is horizontally arranged above the sliding rod and perpendicular to the sliding rod, the lower end of the flexible water retaining cloth is in sealing connection with the upper end of the outer side plate, and the upper end of the flexible water retaining cloth is connected with the connecting rod.

Further, the flexible water retaining cloth is made of rubber materials, and a plurality of folds which are horizontally arranged are formed on the flexible water retaining cloth.

Further, the drain pipes comprise a first drain pipe and a second drain pipe, and the upper ends of the first drain pipe and the second drain pipe are connected with the tubular part of the drain joint through connecting pipelines; the lower end of the first drain pipe is connected with a water storage tank; the lower end of the second drain pipe is connected with the drain ditch;

the second drain pipe is also provided with a drain adjusting mechanism, and the drain adjusting mechanism comprises a valve plate, a driving rod, a spring, a flexible water inlet pipe, a flexible water outlet pipe, an adjusting water tank and a flow limiting valve; the valve plate is rotationally connected in the second drain pipe to control the water passing capacity of the second drain pipe, and the driving rod is positioned on the outer wall of the second drain pipe, is fixedly connected with the rotating shaft of the valve plate and synchronously rotates with the valve plate; one end of the driving rod connected with the valve plate is rotationally connected with the outer wall of the adjusting water tank, and the hinging point of the adjusting water tank and the driving rod is higher than the gravity center of the adjusting water tank; the upper end of the spring is fixedly connected with the upper end of the second drain pipe, and the lower end of the spring is fixedly connected with the driving rod;

the upper end of the adjusting water tank is provided with a water inlet, the water inlet is connected with a flexible water inlet pipe, and the upper end of the flexible water inlet pipe is connected with the connecting pipeline; the lower extreme of adjusting the water tank is provided with the delivery port, the delivery port is connected with flexible outlet pipe, the lower extreme of outlet pipe with second drain pipe connection, the current limiting valve sets up on the flexible outlet pipe of delivery port below, flexible outlet pipe with second drain pipe junction is less than the position height of valve plate.

Further, the pipe diameter of the second drain pipe is larger than or equal to the pipe diameter of the first drain pipe.

The installation method of the drainage tank structure for the steel structure building comprises the following steps of:

(1) installing a drainage groove with a preset drainage hole below the roof board, and adjusting the position of the drainage groove to enable the edge of the roof board to be positioned right above the drainage groove;

(2) the lower surface of the annular flanging of the drainage joint made of plastic materials is coated with annular viscose near the inner side of the tubular part, the tubular part penetrates through the drainage hole, and the annular flanging of the drainage joint is connected with the bottom of the drainage groove around the drainage hole in a sealing way;

(3) installing a water bar on the inner side plate of the drainage tank, wherein the upper end of the water bar is connected with the lower surface of the roof board; a splash-proof structure is arranged on the outer side plate of the water drainage tank, and along with the rising of the water level in the water drainage tank, a floating ball of the splash-proof structure rises and drives a flexible water retaining cloth to rise so as to block water drops splashed in the water drainage tank;

(4) the lower end of the drainage joint is provided with a connecting pipeline, the connecting pipeline is connected with a first drainage pipe and a second drainage pipe, the first drainage pipe is connected with a water storage pipe preset below the ground, and the second drainage pipe is provided with a drainage adjusting mechanism; the water discharge adjusting mechanism changes the water discharge capacity of the second water discharge pipe according to the rainfall.

After the structure is adopted, the drainage tank structure for the steel structure building and the installation method have the following beneficial effects:

1. the drainage connector is made of plastic materials, has the advantages of corrosion resistance, is convenient to form an annular flanging on the tubular part, and has the advantage of difficult water leakage because the joint of the annular flanging and the tubular part is of an integral structure.

2. Through set up the siphon passageway in the drainage connector, can be in avoiding because the unable more problem of remaining of water drainage tank rainwater that the thickness of annular turn-ups led to, at the end of the drainage, rainwater water level is less than annular turn-ups's upper surface, at this moment, because the existence of siphon passageway, the siphon passageway can continue to drain the rainwater to in the tubular part, until the water level is less than annular turn-ups's lower surface. Therefore, the residual water quantity in the drainage tank is greatly reduced, and the residual rainwater can be quickly evaporated and eliminated.

3. Through setting up the metal that the lid was established on the drainage joint and block the net, the spliced pole offsets with the inner wall of tubulose portion and pushes up, realizes the location of metal and blocks the net, avoids shifting. The roof of metal blocking net is provided with the recess that sinks, like this, the leaf floats when the water level is great, along with debris such as water yield leaf collect in the recess that sinks easily, be difficult for blocking up the filtration pore on the side.

4. Be provided with breakwater and splashproof structure on the water drainage tank, like this the inboard board one side of water drainage tank is blocked through the breakwater, no matter the water level height in the water drainage tank, the water droplet of splashing also can not follow inboard whereabouts. The side of the drainage groove is provided with a splash-proof structure, and along with the lifting of the water level in the drainage groove, the floating ball is lifted, so that the sliding rod is driven to lift, and the height of the flexible water retaining cloth is further improved. When the water level is low or no water exists, the flexible water retaining cloth is not lifted, and the influence on eave landscapes is reduced.

5. The first drain pipe is arranged to recycle rainwater, and when the rainfall is large, the water passing capacity of the second drain pipe is adjusted through the drain adjusting mechanism, so that when the rainfall is small, the second drain pipe is closed, and most of rainwater enters the first drain pipe to enter the water storage tank for collection; when the rainfall is great, the drainage adjusting mechanism controls and increases the water passing capacity in the second drainage pipe, so that the first drainage pipe and the second drainage pipe can drain water simultaneously, and water flow can be discharged smoothly.

6. The drainage adjusting mechanism can adopt an electromagnetic control valve to control the water passing capacity of the second drain pipe, and can also adopt a mechanical structure. If adopt adjusting water tank to control, concretely, following, part rainwater in the connecting tube gets into adjusting water tank through flexible inlet tube in, and the rainwater in the adjusting water tank passes through current limiting valve and flexible outlet pipe to be discharged, if the speed of intaking of flexible inlet tube is less than the biggest play water velocity of current limiting valve, it is less to indicate like this the rainwater, and the rainwater also can not remain in adjusting water tank, and adjusting water tank's weight can not increase too much, can't overcome the elasticity of spring and lead to the actuating lever to swing down, also can not drive the valve plate and rotate. If the water inlet speed of the flexible water inlet pipe is greater than the maximum water outlet speed of the flow limiting valve, the rainwater is larger, the rainwater is reserved in the adjusting water tank, the weight of the adjusting water tank is increased, the gravity of the adjusting water tank causes the driving rod to overcome the elastic force of the spring, the driving rod swings downwards, the valve plate is driven to rotate, and the water passing capacity of the second water drain pipe is increased. And the more rainwater in the regulating water tank remains, the larger the rainfall rate is, and the larger the opening degree of the second drain pipe is.

Through adjusting the combination of water tank, restriction valve and spring and actuating lever, the opening size in the second drain pipe of valve plate is adjusted to the speed size according to the rainfall, need not and external circuit, simple structure is reliable.

Compared with the prior art, the drainage connector made of plastic materials is simple and convenient to manufacture, can be conveniently arranged at the bottom of the drainage groove, and is corrosion-resistant and difficult to leak.

Drawings

Fig. 1 is a schematic perspective view of a mounting structure of a drain tank and a drain joint.

Fig. 2 is a schematic cross-sectional structure of a mounting structure of a drain tank and a drain structure.

Fig. 3 is a schematic view of a three-dimensional exploded structure of a drain connector and a metal blocking net.

Fig. 4 is a schematic cross-sectional view of a drain fitting and a metal blocking net.

Fig. 5 is a schematic perspective view of a drain fitting.

FIG. 6 is a schematic cross-sectional view of an annular flange of a drain fitting.

Fig. 7 is a schematic cross-sectional view of another angle of the drain fitting.

Fig. 8 is an enlarged schematic view of the structure at a in fig. 7.

Fig. 9 is a schematic view showing a state of use of a drainage tank structure for steel structure construction according to the present invention.

Fig. 10 is a schematic view of a structure in which water bars and a splash-proof structure are provided on a drain tank.

Fig. 11 is an enlarged schematic view of the structure at B in fig. 10.

Fig. 12 is a schematic view of a state of use of the splash guard.

Fig. 13 is a schematic view showing the overall structure of the second drain pipe provided with the drain adjusting mechanism.

Fig. 14 is an enlarged schematic view of the structure at C in fig. 13.

Fig. 15 is a schematic view of a structure of the drain adjusting mechanism when a certain amount of water is accumulated in the adjusting water tank.

In the figure:

a drain tank 1; water bar 11; a splash-proof structure 12; a float ball 121; a slide lever 122; a slider 123; a connecting rod 124; a flexible water barrier 125; an inner side plate 13; an outer panel 14; a roof panel 15;

a metal barrier net 2; a top plate 21; side wall 22; a sinking groove 211; a connecting column 23; a filter hole 24;

a drain joint 3; a tubular portion 31; an annular flange 32; annular adhesive 33; a siphon channel 34; a siphon inlet 341; a siphon outlet 342;

a connecting pipe 4; a first drain pipe 5; a water storage tank 51; a second drain pipe 6; a drainage adjustment mechanism 7; a valve plate 71; a drive lever 72; a spring 73; a flexible inlet tube 74; a flexible outlet tube 75; an adjusting water tank 76; a restrictor valve 77.

Detailed Description

In order to further explain the technical scheme of the invention, the invention is explained in detail by specific examples.

As shown in fig. 1 to 15, the drainage tank structure for the steel structure building comprises a drainage tank 1 and a drainage joint 3, wherein a drainage hole is formed in the bottom of the drainage tank 1; the drain connector 3 is made of plastic material, and the drain connector 3 comprises a tubular part 31 and an annular flanging 32 integrally formed on the upper edge of the tubular part 31; the tubular part 31 of the drain joint 3 passes through the drain hole, the tubular part 31 is connected with a drain pipe, and the annular flange 32 is bonded and sealed at the bottom of the drain tank 1 around the drain hole. In this way, the drainage joint 3 is made of plastic material, which has the advantage of corrosion resistance, and the annular flange 32 is formed on the tubular part 31 conveniently, and the joint of the annular flange 32 and the tubular part 31 is of an integral structure, so that the drainage joint has the advantage of difficult water leakage.

Preferably, a metal blocking net 2 is arranged above the drain joint 3, the metal blocking net 2 comprises a top plate 21, a side wall 22 and a connecting column 23, and filter holes 24 are formed in the top plate 21 and the side wall 22; the side wall 22 is formed on the periphery of the top plate 21 and extends downwards, and the lower end of the side wall 22 abuts against the bottom of the drain tank 1; the middle part of roof 21 is provided with the recess 211 that sinks, spliced pole 23 upper end with roof 21 lower surface is connected, spliced pole 23 stretches into in the tubular portion 31 inner chamber of drain joint 3 and with tubular portion 31 inner chamber supports the top and is connected. Further, a friction strip is arranged on the surface of the connecting post 23, which is contacted with the tubular part 31, so as to increase the friction force between the connecting post 23 and the inner wall of the tubular part 31; by arranging the metal blocking net 2 covered on the drain joint 3, the connecting column 23 abuts against the inner wall of the tubular part 31, so that the metal blocking net 2 is positioned, and displacement is avoided. The top plate 21 of the metal blocking net 2 is provided with the sinking groove 211, so that leaves float when the water level is high, sundries such as water amount leaves are easy to collect in the sinking groove 211, the filter holes 24 on the side walls 22 are not easy to block, and regular maintenance and cleaning of workers are facilitated.

Preferably, a plurality of siphon channels 34 are provided in the drain connector 3, the siphon channels 34 extend from the inner wall surface of the tubular portion 31 to the lower surface of the annular flange 32, each siphon channel 34 is provided with a siphon inlet 341 at the lower surface of the annular flange 32, the siphon channels 34 are provided with a siphon outlet 342 at the inner wall of the tubular portion 31, and the siphon outlet 342 is lower than the siphon inlet 341; the annular flange 32 is adhered to the bottom of the drainage tank 1 around the drainage hole through the annular adhesive 33, and the siphon outlet 342 is positioned on the outer side of the annular adhesive and is communicated with the water collecting space of the drainage tank 1. By providing the siphon channel 34 in the drain fitting 3, the problem that more rainwater cannot remain in the drain tank 1 due to the thickness of the annular flange 32 can be avoided, and at the end of draining, the rainwater level is lower than the upper surface of the annular flange 32, at this time, the siphon channel 34 can continue draining rainwater into the tubular portion 31 until the water level is lower than the lower surface of the annular flange 32 due to the existence of the siphon channel 34. Thus greatly reducing the residual water quantity in the drainage tank 1, and the residual rainwater can be quickly evaporated and eliminated.

Further, the siphon channel 34 may be formed on the pipe wall along the axis before the drain connector 3 bends the annular flange 32, and the siphon channel 34 is simultaneously bent when the annular flange 32 is formed. The drain fitting 3 structure with the siphon channel 34 may be formed in other ways.

Preferably, the drainage tank 1 is provided with an inner side plate 13 positioned below the roof plate 15 and an outer side plate 14 positioned outside, a water blocking strip 11 is arranged between the inner side plate 13 and the roof plate 15, and the upper end and the lower end of the water blocking strip 11 are respectively connected with the lower surface of the roof plate 15 and the upper end of the inner side plate 13 in a sealing way; the splash-proof structure 12 is arranged on the outer side plate 14, the splash-proof structure 12 comprises a floating ball 121, a sliding rod 122, a sliding seat 123, a connecting rod 124 and a flexible water retaining cloth 125, the sliding seat 123 is fixedly connected to the inner side of the outer side plate 14, the sliding rod 122 is slidingly connected to the sliding seat 123 along the vertical direction, the floating ball 121 is arranged on the sliding rod 122 above the sliding seat 123, a connecting rod 124 which is horizontally arranged and perpendicular to the sliding rod 122 is arranged above the sliding rod 122, the lower end of the flexible water retaining cloth 125 is in sealing connection with the upper end of the outer side plate 14, and the upper end of the flexible water retaining cloth 125 is connected with the connecting rod 124.

The water baffle 11 and the splash-proof structure 12 are arranged on the water drainage tank 1, so that one side of the inner side plate 13 of the water drainage tank 1 is blocked by the water baffle 11, and splashed water drops cannot drop from the inner side no matter the water level in the water drainage tank 1 is high or low. The splash-proof structure 12 is arranged on the side of the water drainage groove 1, and the floating ball 121 is lifted along with the lifting of the water level in the water drainage groove 1, so that the sliding rod 122 is driven to lift, and the height of the flexible water retaining cloth 125 is further improved. When the water level is low or no water exists, the flexible water retaining cloth 125 does not rise, and the influence on eave landscapes is reduced. Still further, the flexible water retaining cloth 125 is made of rubber material, and a plurality of folds horizontally arranged are formed on the flexible water retaining cloth 125. Thus, the flexible water blocking cloth 125 can be folded along the fold transverse, and the flexible water blocking cloth 125 can be stretched and retracted more smoothly.

The water bar 11 and the flexible water barrier 125 play a role in preventing splashed water drops from splashing out of the water barrier groove, and cannot block overflowed rainwater. The drain tank 1 is designed with extreme precipitation in mind, unless the drain pipe is not smooth, the probability of overflow from the drain tank is low.

Further, the drain pipes include a first drain pipe 5 and a second drain pipe 6, and the upper ends of the first drain pipe 5 and the second drain pipe 6 are connected with the tubular part 31 of the drain joint 3 through a connecting pipe 4; the lower end of the first drain pipe 5 is connected with a water storage tank 51; the lower end of the second drain pipe 6 is connected with a drain (not shown in the figure); preferably, the second drain pipe 6 is further provided with a drain adjusting mechanism 7, the first drain pipe 5 is arranged to recycle rainwater, and when the rainfall is large, the drain adjusting mechanism 7 is used for adjusting the water passing capacity of the second drain pipe 6, so that when the rainfall is small, the second drain pipe 6 is closed, and most of rainwater enters the first drain pipe 5 to enter the water storage tank 51 for collection; when the rainfall is large, the water discharge adjusting mechanism 7 controls and increases the water discharge capacity in the second water discharge pipe 6, so that the first water discharge pipe 5 and the second water discharge pipe 6 are used for discharging water simultaneously, and water flow is smoothly discharged.

Preferably, the drain adjusting mechanism 7 may control the water passing capacity of the second drain pipe 6 using an electromagnetic control valve. The second drain pipe 6 is internally provided with an electromagnetic control valve to control the water passing capacity of the second drain pipe 6, when the controller detects that the rainfall is overlarge through the sensor, the controller controls the electromagnetic control valve to increase the opening size so that the rainwater can be discharged through the second drain pipe 6, and the sensor can be a rainfall sensor or a water level sensor for detecting the water level in the drain tank 1.

Preferably, the second drain pipe 6 is further provided with a drain adjusting mechanism 7, and the drain adjusting mechanism 7 may also adopt a mechanical structure; the drainage adjusting mechanism 7 comprises a valve plate 71, a driving rod 72, a spring 73, a flexible water inlet pipe 74, a flexible water outlet pipe 75, an adjusting water tank 76 and a flow limiting valve 77; the valve plate 71 is rotatably connected in the second drain pipe 6 to control the water passing capacity of the second drain pipe 6, and the driving rod 72 is positioned on the outer wall of the second drain pipe 6, fixedly connected with the rotating shaft of the valve plate 71 and synchronously rotated with the valve plate 71; one end of the driving rod 72 connected with the valve plate 71 is rotatably connected with the outer wall of the adjusting water tank 76, and the hinge point of the adjusting water tank 76 and the driving rod 72 is higher than the gravity center of the adjusting water tank 76, so that the adjusting water tank 76 can keep a vertical state in a water-free state and a water-free state.

The upper end of the spring 73 is fixedly connected with the upper end of the second drain pipe 6, and the lower end of the spring 73 is fixedly connected with the driving rod 72; the upper end of the adjusting water tank 76 is provided with a water inlet, the water inlet is connected with a flexible water inlet pipe 74, and the upper end of the flexible water inlet pipe 74 is connected with the connecting pipeline 4; the lower extreme of adjusting water tank 76 is provided with the delivery port, the delivery port is connected with flexible outlet pipe 75, the lower extreme of outlet pipe with second drain pipe 6 is connected, the current limiting valve 77 sets up on the flexible outlet pipe 75 of delivery port below, flexible outlet pipe 75 with second drain pipe 6 junction is less than the position height of valve plate 71.

Part of rainwater in the connecting pipeline 4 enters the regulating water tank 76 through the flexible water inlet pipe 74, and the larger the rainfall speed is, the larger the rainwater speed entering the regulating water tank 76 from the flexible water inlet pipe 74 is, the rainwater in the regulating water tank 76 is discharged through the flow limiting valve 77 and the flexible water outlet pipe 75, if the water inlet speed of the flexible water inlet pipe 74 is smaller than the maximum water outlet speed of the flow limiting valve 77, the rainwater is smaller, the rainwater cannot be reserved in the regulating water tank 76, the weight of the regulating water tank 76 cannot be increased too much, the driving rod 72 cannot swing downwards due to the elastic force of the spring 73, and the valve plate 71 cannot be driven to rotate. If the water inlet speed of the flexible water inlet pipe 74 is greater than the maximum water outlet speed of the flow limiting valve 77, which indicates that rainwater is large, the rainwater is reserved in the adjusting water tank 76, the weight of the adjusting water tank 76 is increased, the gravity of the adjusting water tank 76 causes the driving rod 72 to overcome the elastic force of the spring 73, the driving rod 72 swings downwards, the valve plate 71 is driven to rotate, and the water passing capacity of the second water discharging pipe 6 is increased. And the more rainwater in the regulating water tank 76 remains, the greater the rainfall rate, and the greater the degree of opening of the second drain pipe 6. By adjusting the water tank 76, the restrictor valve 77, and the combination of the spring 73 and the driving rod 72, the opening size of the valve plate 71 in the second drain pipe 6 is adjusted according to the rate of rainfall, and an external circuit is not required, so that the structure is simple and reliable.

Preferably, the pipe diameter of the second drain pipe 6 is greater than or equal to the pipe diameter of the first drain pipe 5. When it is necessary to open the second drain pipe 6 for drainage, the rainwater collected through the first drain pipe 5 is sufficient, and the main object at this time is to drain the rainwater timely, so that the pipe diameter of the second drain pipe 6 is designed to be at least larger than that of the first drain pipe 5. When the rain amount is small, the second drain pipe 6 is closed, so that the rain water is not discharged to the drain through the second drain pipe 6, and most of the rain water enters the water storage tank 51 through the first drain pipe 5 for collection and storage.

The invention also provides a mounting method of the drainage tank structure for the steel structure building, which comprises the following steps:

(1) installing a drainage tank 1 with a preset drainage hole below a roof board 15, and adjusting the position of the drainage tank 1 so that the edge of the roof board 15 is positioned right above the drainage tank 1;

(2) an annular adhesive 33 is coated on the lower surface of an annular flange 32 of a drain joint 3 made of plastic materials and close to the inner side of a tubular part 31, the tubular part 31 penetrates through a drain hole, and the annular flange 32 of the drain joint 3 is in sealing connection with the bottom of a drain groove 1 around the drain hole;

(3) the water retaining strips 11 are arranged on the inner side plates 13 of the drainage tanks 1, and the upper ends of the water retaining strips 11 are connected with the lower surface of the roof plate 15; a splash-proof structure 12 is arranged on the outer side plate 14 of the water drainage tank 1, and along with the rising of the water level in the water drainage tank 1, a floating ball 121 of the splash-proof structure 12 rises and drives a flexible water retaining cloth 125 to rise so as to block water drops splashed in the water drainage tank 1;

(4) a connecting pipeline 4 is arranged at the lower end of the drainage joint 3, a first drainage pipe 5 and a second drainage pipe 6 are connected to the connecting pipeline 4, the first drainage pipe 5 is connected with a water storage pipe preset below the ground, and a drainage adjusting mechanism 7 is arranged on the second drainage pipe 6; the water discharge adjusting mechanism 7 changes the water discharge capacity of the second water discharge pipe 6 according to the amount of rain.

Compared with the prior art, the drainage connector 3 made of plastic materials is simple and convenient to manufacture, can be conveniently arranged at the bottom of the drainage groove 1, and is corrosion-resistant and difficult to leak water.

The above examples and drawings are not intended to limit the form or form of the present invention, and any suitable variations or modifications thereof by those skilled in the art should be construed as not departing from the scope of the present invention.

Claims

1. The drainage tank structure for the steel structure building is characterized by comprising a drainage tank and a drainage joint, wherein a drainage hole is formed in the bottom of the drainage tank; the drainage connector is made of plastic materials and comprises a tubular part and an annular flanging integrally formed on the upper edge of the tubular part; the tubular part of the drainage joint penetrates through the drainage hole, the tubular part is connected with a drainage pipe, and the annular flanging is bonded and hermetically connected to the bottom of the drainage groove around the drainage hole;

a plurality of siphon channels are arranged in the drainage joint, the siphon channels extend from the inner wall surface of the tubular part to the lower surface of the annular flanging, each siphon channel is provided with a siphon inlet on the lower surface of the annular flanging, the siphon channels are provided with siphon outlets on the inner wall of the tubular part, and the siphon outlets are lower than the siphon inlets; the annular flange is adhered to the bottom of the drainage groove around the drainage hole through annular adhesive, and the siphon outlet is positioned at the outer side of the annular adhesive and is communicated with the water collecting space of the drainage groove.

2. The drainage tank structure for steel structure building according to claim 1, wherein a metal blocking net is arranged above the drainage joint, the metal blocking net comprises a top plate, side walls and connecting columns, and filter holes are formed in the top plate and the side walls; the side wall is formed on the periphery of the top plate and extends downwards, and the lower end of the side wall abuts against the bottom of the drainage groove; the middle part of the top plate is provided with a sinking groove, the upper end of the connecting column is connected with the lower surface of the top plate, and the connecting column stretches into the inner cavity of the tubular part of the drainage joint and is in propping connection with the inner cavity of the tubular part.

3. The drainage tank structure for steel structure building according to claim 1, wherein the drainage tank is provided with an inner side plate positioned below a roof board and an outer side plate positioned outside, a water blocking strip is arranged between the inner side plate and the roof board, and the upper end and the lower end of the water blocking strip are respectively connected with the lower surface of the roof board and the upper end of the inner side plate in a sealing way; the anti-splash structure comprises a floating ball, a sliding rod, a sliding seat, a connecting rod and flexible water retaining cloth, wherein the sliding seat is fixedly connected to the inner side of the outer side plate, the sliding rod is slidably connected to the sliding seat along the vertical direction, the floating ball is mounted on the sliding rod above the sliding seat, the connecting rod is horizontally arranged above the sliding rod and perpendicular to the sliding rod, the lower end of the flexible water retaining cloth is in sealing connection with the upper end of the outer side plate, and the upper end of the flexible water retaining cloth is connected with the connecting rod.

4. A drainage channel structure for steel construction building according to claim 3, wherein said flexible water retaining cloth is made of rubber material, and a plurality of folds are formed on said flexible water retaining cloth.

5. The drainage tank structure for steel construction according to claim 1, wherein the drainage pipe comprises a first drainage pipe and a second drainage pipe, the upper ends of the first drainage pipe and the second drainage pipe are connected with the tubular part of the drainage joint through connecting pipes; the lower end of the first drain pipe is connected with a water storage tank; the lower end of the second drain pipe is connected with the drain ditch;

6. The steel construction drainage channel structure for construction according to claim 5, wherein the pipe diameter of the second drainage pipe is greater than or equal to the pipe diameter of the first drainage pipe.

7. A method of installing a steel construction drainage channel structure for a building as claimed in claim 3 or 4, comprising the steps of: