CN113958071A

CN113958071A - Drainage channel structure for steel structure building and installation method

Info

Publication number: CN113958071A
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: 2022-01-21
Anticipated expiration: 2041-10-09
Also published as: CN113958071B

Abstract

The invention discloses a drainage channel structure for a steel structure building and an installation method thereof, wherein the drainage channel structure comprises a drainage channel and a drainage connector, wherein a drainage hole is formed in the bottom of the drainage channel; the drainage joint is made of plastic materials and comprises a tubular part and an annular flanging which is 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 plastic drainage joint is simple and convenient to manufacture, can be conveniently arranged at the bottom of the drainage groove, is corrosion-resistant and is not easy to leak water.

Description

Drainage channel 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 channel structure for a steel structure building and an installation method.

Background

The eaves mouth structure is a drainage structures in the pitched roof structure, and it forms hollow structure through the eaves mouth board of choosing and between the pitched roof, discharges the ponding that flows down on the roofing, prevents that ponding from getting into in the room through the gap of knee wall. A water collecting groove is arranged below the eave to receive rainwater flowing down from the roof, and a drain pipe is arranged on the water collecting groove to drain the rainwater downwards. Traditional drain pipe and water catch bowl are connected and are adopted welded connection or adopt the metal to enclose into tubulose and set up bending structure at the eaves mouth and realize, but comparatively troublesome when installing like this, and metal sheet bending structure exists and corrodes easily moreover, and the installation exists the defect that the clearance leaks easily.

Some sundries such as leaves are easily accumulated in the drainage groove, and if the sundries of the leaves enter the drainage pipe, the drainage pipe is easily blocked to influence the drainage performance. Traditional water drainage tank structure, after the rain stops, still easily collect some ponding and can't get rid of in the water drainage tank, so last to lead to the fact the corruption to water drainage tank and drain pipe structure.

The existing cornice structure also has the following defects: if the rainfall is too large, the rainwater in the water collecting tank can not be discharged in time, so that the water level in the water collecting tank rises, and the rainwater is easy to spill when dropping into the water collecting tank from the eave, so that a corridor with a click answer below the water collecting tank is caused, and the using effect is influenced.

To being provided with the design that the rainwater of water storage tank in to the drain pipe was collected, if the rainwater is too big, the pipeline flow that leads to in the water storage tank is not enough in time to discharge the rainwater, also leads to the rainwater drainage of water drainage tank untimely easily, leads to the water level in the water catch bowl to rise even the rainwater spills over from the water catch bowl.

In view of the above, the applicant has made an intensive study on the above-mentioned defects in the prior art, and has made this invention.

Disclosure of Invention

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

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

a drainage channel structure for a steel structure building comprises a drainage channel and a drainage joint, wherein a drainage hole is formed in the bottom of the drainage channel; the drainage joint is made of plastic materials and comprises a tubular part and an annular flanging which is 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.

Furthermore, a metal blocking net is arranged above the drainage joint and comprises a top plate, a side wall and a connecting column, and filtering holes are formed in the top plate and the side wall; 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 drainage connector is characterized in that a sinking groove is formed in the middle of the top plate, the upper end of the connecting column is connected with the lower surface of the top plate, and the connecting column extends into an inner cavity of the tubular part of the drainage connector and is connected with the inner cavity of the tubular part in a propping mode.

Furthermore, a plurality of siphon channels are arranged in the drainage connector, the siphon channels extend from the inner wall surface of the tubular part to the lower surface of the annular flange, each siphon channel is provided with a siphon inlet on the lower surface of the annular flange, the siphon channel is provided with a siphon outlet on the inner wall of the tubular part, and the siphon outlet is lower than the siphon inlet; the annular flanging is bonded to the bottom of the drainage groove around the drainage hole through annular viscose glue, and the siphon outlet is located on the outer side of the annular bonding and communicated with the drainage groove water collecting space.

Furthermore, the water drainage groove is provided with an inner side plate positioned below the roof panel and an outer side plate positioned outside the inner side plate, a water retaining strip is arranged between the inner side plate and the roof panel, and the upper end and the lower end of the water retaining strip are respectively connected with the lower surface of the roof panel and the upper end of the inner side plate in a sealing manner; be provided with splashproof structure on the outer panel, splashproof structure includes floater, slide bar, slide, connecting rod and flexible fender water cloth, the slide fixed connection be in the outer panel is inboard, the slide bar is in along vertical direction sliding connection on the slide, the floater is installed on the slide bar of slide top, the slide bar top is provided with level setting and perpendicular to the connecting rod of slide bar, the lower extreme of flexible fender water cloth with outer panel upper end sealing connection, the upper end of flexible fender water cloth with the connecting rod is connected.

Further, flexible water blocking cloth adopts the rubber material to make, be formed with the crease of a plurality of horizontal settings on the flexible water blocking cloth.

Further, the drain pipe comprises 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 drainage pipe is connected with a water storage tank; the lower end of the second drain pipe is connected with the drainage 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 rotatably connected in the second drainage pipe to control the water passing capacity of the second drainage pipe, and the driving rod is positioned on the outer wall of the second drainage 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 connecting valve plate is rotatably connected with the outer wall of the adjusting water tank, and the hinge 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 water drainage 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 surge tank is provided with the delivery port, the delivery port is connected with flexible outlet pipe, the lower extreme of outlet pipe with the second drain pipe is connected, the restriction valve sets up on the flexible outlet pipe of delivery port below, flexible outlet pipe with the second drain pipe junction is less than the place height of valve plate.

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

A method for installing a drainage channel structure for a steel structure building comprises the following steps:

firstly, installing a drainage groove with preset drainage holes below a roof panel, and adjusting the position of the drainage groove to enable the edge of the roof panel to be positioned right above the drainage groove;

coating an annular adhesive on the lower surface of the annular flanging of the drainage joint made of the plastic material close to the inner side of the tubular part, enabling the tubular part to penetrate through the drainage hole, and hermetically connecting the annular flanging of the drainage joint with the bottom of the drainage groove around the drainage hole;

mounting a water retaining strip on an inner side plate of the drainage channel, wherein the upper end of the water retaining strip is connected with the lower surface of the roof panel; the outer side plate of the drainage channel is provided with a splash-proof structure, and as the water level in the drainage channel rises, a floating ball of the splash-proof structure rises and drives the flexible water-blocking cloth to rise so as to block water drops splashed out in the drainage channel;

a connecting pipeline is arranged at the lower end of the drainage joint, a first drainage pipe and a second drainage pipe are connected to the connecting pipeline, the first drainage pipe is connected with a water storage pipe which is preset below the ground, and a drainage adjusting mechanism is arranged on the second drainage pipe; the drainage adjusting mechanism changes the water passing capacity of the second drainage pipe according to the rainfall.

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

the drainage connector is made of a plastic material, and has the advantages of corrosion resistance, convenience in forming an annular flanging on the tubular part, and difficulty in water leakage due to the fact that the annular flanging and the connecting part of the tubular part are of an integral structure.

Secondly, through set up the siphon passageway in the drainage connects, can avoid can be because the unable more problem of remaining of the interior rainwater of water drainage tank that annular turn-ups thickness leads to, at drainage final stage, the rainwater water level is less than annular turn-ups upper surface, at this moment, because the existence of siphon passageway, the siphon passageway can continue to arrange the rainwater in to the tubulose portion, until the water level is less than annular turn-ups lower surface. Therefore, the residual water quantity in the drainage tank is greatly reduced, and the residual rainwater in a small quantity can be quickly evaporated and eliminated.

And thirdly, the metal blocking net is covered on the drainage joint, and the connecting column is propped against the inner wall of the tubular part, so that the metal blocking net is positioned, and displacement is avoided. Be provided with the recess that sinks on the roof of metal blocking net, like this, the leaf floats when the water level is great, along with debris such as water yield leaf collect easily in the recess that sinks, be difficult for blockking up the filtration pore on the side wall.

And fourthly, the water drainage groove is provided with a water retaining strip and a splash-proof structure, so that one side of the inner side plate of the water drainage groove is blocked by the water retaining strip, and splashed water drops can not drip from the inner side no matter the water level in the water drainage groove. The drain tank side is through setting up splashproof structure, along with the promotion of drain tank water level, the floater risees to drive the slide bar and rise, and then promote the height of flexible water blocking cloth. When the water level is low or no water exists, the flexible water blocking cloth does not rise, and the influence on the eave landscape is reduced.

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

And sixthly, the drainage adjusting mechanism can adopt an electromagnetic control valve to control the water passing capacity of the second drainage pipe and also can adopt a mechanical structure. If adopt the regulation water tank to control, specifically as follows, partial rainwater in the connecting tube gets into to the regulation water tank in through flexible inlet tube, rainwater in the regulation water tank passes through restriction valve and flexible outlet pipe discharge, if the inlet velocity of flexible inlet tube is less than the maximum outlet velocity of restriction valve, show the rainwater like this less, the rainwater also can not be kept in the regulation water tank, the weight of regulation water tank can not increase too much, the elasticity that can't overcome the spring leads to the actuating lever to swing downwards, 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 enables the driving rod to overcome the elastic force of the spring, the driving rod swings downwards to drive the valve plate to rotate, and the water passing capacity of the second water discharging pipe is increased. And the more the rainwater in the regulating water tank is reserved, the higher the rainfall rate is, and the larger the opening degree of the second drain pipe is at the moment.

Through the combination of the adjusting water tank, the flow limiting valve, the spring and the driving rod, the opening size of the valve plate in the second drainage pipe is adjusted according to the rainfall rate, an external circuit is not needed, and the structure is simple and reliable.

Compared with the prior art, the plastic drainage joint is simple and convenient to manufacture, can be conveniently arranged at the bottom of the drainage groove, is corrosion-resistant and is not easy to leak water.

Drawings

Fig. 1 is a perspective view of an installation structure of a drain tank and a drain fitting.

Fig. 2 is a cross-sectional view schematically illustrating an installation structure of a drain tank and a drain structure.

Fig. 3 is a schematic perspective exploded view of the drain connector and the metal blocking net.

Fig. 4 is a schematic sectional view showing the structure of the drain connector and the metal blocking net.

Fig. 5 is a perspective view of the drain connector.

Fig. 6 is a sectional structural view of an annular flange of the drain fitting.

FIG. 7 is a schematic cross-sectional view of another angle of the drain connector.

Fig. 8 is an enlarged schematic view of a portion a in fig. 7.

Fig. 9 is a schematic view of a state of use of the drainage channel structure for the steel structure building according to the present invention.

Fig. 10 is a schematic structural view of a water bar and a splash-proof structure arranged on a drainage groove.

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

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

Fig. 13 is a schematic view of the entire 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 showing the structure of the drain adjusting mechanism when a certain amount of water is accumulated in the adjusting tank.

In the figure:

a water discharge tank 1; a water bar 11; a splash guard structure 12; a floating ball 121; a slide lever 122; a slider 123; a connecting rod 124; a flexible water-blocking cloth 125; an inner side plate 13; an outer panel 14; a roof panel 15;

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

a water discharge joint 3; a tubular portion 31; an annular flange 32; an annular adhesive 33; a siphon passage 34; 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 regulating mechanism 7; a valve plate 71; a drive rod 72; a spring 73; a flexible water inlet tube 74; a flexible outlet pipe 75; a conditioning water tank 76; a flow restriction valve 77.

Detailed Description

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

As shown in fig. 1 to 15, the drainage channel structure for the steel structure building according to the present invention includes a drainage channel 1 and a drainage connector 3, wherein a drainage hole is formed at the bottom of the drainage channel 1; the drainage joint 3 is made of plastic materials, and the drainage joint 3 comprises a tubular part 31 and an annular flanging 32 which is integrally formed at the upper edge of the tubular part 31; the tubular part 31 of the drainage joint 3 passes through the drainage hole, the tubular part 31 is connected with a drainage pipe, and the annular flange 32 is bonded and sealed at the bottom of the drainage groove 1 around the drainage hole. Therefore, according to the drainage channel structure for the steel structure building and the installation method, the drainage connector 3 is made of the plastic material, the advantage of corrosion resistance is achieved, the annular flanging 32 can be conveniently formed on the tubular part 31, the connection part of the annular flanging 32 and the tubular part 31 is of an integral structure, and the drainage channel structure has the advantage of being not prone to water leakage.

Preferably, a metal blocking net 2 is arranged above the drainage connector 3, the metal blocking net 2 comprises a top plate 21, a side wall 22 and a connecting column 23, and filtering holes 24 are arranged on the top plate 21 and the side wall 22; the side wall 22 is formed at 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 drainage channel 1; the middle of the top plate 21 is provided with a sinking groove 211, the upper end of the connecting column 23 is connected with the lower surface of the top plate 21, and the connecting column 23 extends into the inner cavity of the tubular part 31 of the drainage joint 3 and is connected with the inner cavity of the tubular part 31 in a propping manner. Furthermore, a friction strip is arranged on one surface of the connecting column 23, which is in contact with the tubular part 31, so as to increase the friction force between the connecting column 23 and the inner wall of the tubular part 31; through setting up the metal blocking net 2 of lid on drainage connects 3, the spliced pole 23 is supported with the inner wall of tubulose portion 31, realizes that the metal blocks the location of net 2, avoids shifting. Be provided with the recess 211 that sinks on metal blocking net 2's the roof 21, like this, the leaf floats when the water level is great, along with debris such as water yield leaf collect easily in the recess 211 that sinks, is difficult for blockking up the filtration pore 24 on the side wall 22, makes things convenient for workman's regular maintenance clean.

Preferably, a plurality of siphon channels 34 are arranged 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 on the lower surface of the annular flange 32, the siphon channel 34 is provided with a siphon outlet 342 on 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 groove 1 around the drainage hole through an annular adhesive 33, and the siphon outlet 342 is positioned outside the annular adhesive and communicated with the water collecting space of the drainage groove 1. Through set up siphon passageway 34 in drainage connects 3, can avoid the unable problem that remains more of rainwater in the water drainage tank 1 because of the thickness of annular turn-ups 32 leads to, at drainage final stage, the rainwater water level is less than the upper surface of annular turn-ups 32, at this moment, because the existence of siphon passageway 34, siphon passageway 34 can continue to drain the rainwater to tubular part 31 in, until the water level is less than the lower surface of annular turn-ups 32. Therefore, the residual water quantity in the drainage tank 1 is greatly reduced, and a small amount of 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 annular flange 32 is bent by the drain fitting 3, and the siphon channel 34 is bent while the annular flange 32 is formed. The structure of the drain connector 3 having the siphon channel 34 may be formed in other manners.

Preferably, the drainage channel 1 has an inner side plate 13 located below a roof panel 15 and an outer side plate 14 located outside, a water bar 11 is arranged between the inner side plate 13 and the roof panel 15, and the upper end and the lower end of the water bar 11 are respectively connected with the lower surface of the roof panel 15 and the upper end of the inner side plate 13 in a sealing manner; be provided with splashproof structure 12 on outer panel 14, splashproof structure 12 includes floater 121, slide bar 122, slide 123, connecting rod 124 and flexible fender water cloth 125, slide 123 fixed connection is in outer panel 14 is inboard, slide bar 122 along vertical direction sliding connection be in on the slide 123, floater 121 installs on the slide 122 of slide 123 top, slide 122 top is provided with level setting and perpendicular to slide bar 122's connecting rod 124, the lower extreme of flexible fender water cloth 125 with outer panel 14 upper end sealing connection, the upper end of flexible fender water cloth 125 with connecting rod 124 connects.

Be provided with water bar 11 and splashproof structure 12 on water drainage tank 1, like this water drainage tank 1's interior plate 13 one side blocks through water bar 11, no matter water level height in water drainage tank 1, the water droplet that splashes also can not follow the inboard drippage. The splash-proof structure 12 is arranged on the side of the drainage channel 1, and the floating ball 121 rises along with the rise of the water level in the drainage channel 1, so that the sliding rod 122 is driven to rise, and the height of the flexible water blocking cloth 125 is further increased. When the water level is low or no water exists, the flexible water blocking cloth 125 does not rise, and the influence on the eave landscape is reduced. Further, the flexible water blocking cloth 125 is made of rubber, and a plurality of horizontally arranged creases are formed on the flexible water blocking cloth 125. The flexible water blocking cloth 125 can be folded along the fold rail in this way, and the extension and retraction of the flexible water blocking cloth 125 are smoother.

It should be noted that the water bar 11 and the flexible water-blocking cloth 125 play a role in preventing splashed water drops from splashing out of the water-blocking groove and cannot block overflowing rainwater. Extreme precipitation is considered when the drain tank 1 is designed, and unless the drain pipe drains poorly, the probability of overflow from the drain tank is low.

Further, the drain pipe comprises 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 pipeline 4; the lower end of the first drainage pipe 5 is connected with a water storage tank 51; the lower end of the second water discharge pipe 6 is connected with a water discharge ditch (not shown in the figure); preferably, the second drain pipe 6 is further provided with a drain adjusting mechanism 7, rainwater is recycled through the first drain pipe 5, and when rainfall is large, the water passing capacity of the second drain pipe 6 is adjusted through the drain adjusting mechanism 7, so that when the rainfall is small, the second drain pipe 6 is closed, and most rainwater enters the first drain pipe 5 to enter the water storage tank 51 for collection; when the rainfall is great, the water discharge adjusting mechanism 7 controls the water passing capacity in the second water discharge pipe 6 to be increased, so that the first water discharge pipe 5 and the second water discharge pipe 6 can discharge water simultaneously, and water flow can be discharged smoothly.

Preferably, the drain adjusting mechanism 7 can control the water passing capacity of the second drain pipe 6 by using a solenoid-operated valve. Be provided with solenoid electric valve in the second drain pipe 6 in order to control the water capacity of crossing of second drain pipe 6, when the controller detected the rainfall through the sensor and was too big, control solenoid electric valve increase opening size for the rainwater can be discharged through second drain pipe 6, and the sensor can be the rainfall sensor, also can be the water level sensor who detects the interior water level of water drainage tank 1.

Preferably, the second water discharge pipe 6 is further provided with a water discharge adjusting mechanism 7, and the water discharge 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 water discharge pipe 6 to control the water passing capacity of the second water discharge pipe 6, and the driving rod 72 is positioned on the outer wall of the second water discharge pipe 6, fixedly connected with the rotating shaft of the valve plate 71 and synchronously rotated with the valve plate 71; the 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 be kept in a vertical state in both a water-free state and a water-containing state.

The upper end of the spring 73 is fixedly connected with the upper end of the second water discharging 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 end of the adjusting water tank 76 is provided with a water outlet, the water outlet is connected with a flexible water outlet pipe 75, the lower end of the water outlet pipe is connected with the second water discharge pipe 6, the flow limiting valve 77 is arranged on the flexible water outlet pipe 75 below the water outlet, and the joint of the flexible water outlet pipe 75 and the second water discharge pipe 6 is lower than the height of the valve plate 71.

Partial rainwater in the connecting pipeline 4 enters the adjusting water tank 76 through the flexible water inlet pipe 74, the rainfall speed is higher, the rainwater speed entering the adjusting water tank 76 from the flexible water inlet pipe 74 is higher, the rainwater in the adjusting 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 adjusting water tank 76, the weight of the adjusting water tank 76 cannot be increased too much, the driving rod 72 cannot swing downwards due to the fact that the elastic force of the spring 73 cannot be overcome, and the valve plate 71 cannot be driven to rotate. If the water inlet speed of the flexible water inlet pipe 74 is higher than the maximum water outlet speed of the flow limiting valve 77, which indicates that rainwater is large, the rainwater is retained 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 thus the water passing capacity of the second water discharging pipe 6 is increased. And the more rain water is retained in the conditioning water tank 76, indicating a greater rate of rainfall, at which time the second drain 6 is opened to a greater extent. The size of the opening of the valve plate 71 in the second water discharge pipe 6 is adjusted according to the rainfall rate by adjusting the combination of the water tank 76, the flow limiting valve 77, the spring 73 and the driving rod 72, an external circuit is not needed, and the structure is simple and reliable.

Preferably, the pipe diameter of the second water discharge pipe 6 is greater than or equal to that of the first water discharge pipe 5. When the second drain pipe 6 needs to be opened for drainage, the rainwater collected through the first drain pipe 5 is sufficient, and at this time, the rainwater is drained in time at the main target, and thus 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 rainfall is small, because the second drain pipe 6 is closed, the rainwater can not be discharged to the drainage ditch through the second drain pipe 6, and most of the rainwater enters the water storage tank 51 through the first drain pipe 5 to be collected and stored.

The invention also provides an installation method of the drainage channel structure for the steel structure building, which comprises the following steps:

firstly, installing a drainage groove 1 with preset drainage holes below a roof panel 15, and adjusting the position of the drainage groove 1 to enable the edge of the roof panel 15 to be positioned right above the drainage groove 1;

secondly, coating an annular viscose 33 on the lower surface of the annular flanging 32 of the drainage joint 3 made of plastic material close to the inner side of the tubular part 31, enabling the tubular part 31 to penetrate through the drainage hole, and hermetically connecting the annular flanging 32 of the drainage joint 3 with the bottom of the drainage groove 1 around the drainage hole;

thirdly, mounting a water retaining strip 11 on an inner side plate 13 of the drainage channel 1, wherein the upper end of the water retaining strip 11 is connected with the lower surface of the roof panel 15; the outer side plate 14 of the drainage channel 1 is provided with the splash-proof structure 12, and as the water level in the drainage channel 1 rises, the floating ball 121 of the splash-proof structure 12 rises and drives the flexible water-blocking cloth 125 to rise so as to block water drops splashed out in the drainage channel 1;

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 drainage adjusting mechanism 7 changes the water passing capacity of the second drainage pipe 6 according to the rainfall.

Compared with the prior art, the plastic drainage connector 3 is simple and convenient to manufacture, can be conveniently arranged at the bottom of the drainage channel 1, is corrosion-resistant and is not easy to leak water.

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

Claims

1. The drainage channel structure for the steel structure building is characterized by comprising a drainage channel and a drainage joint, wherein a drainage hole is formed in the bottom of the drainage channel; the drainage joint is made of plastic materials and comprises a tubular part and an annular flanging which is 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.

2. The drainage channel structure for the steel structure building as claimed in claim 1, wherein a metal blocking net is arranged above the drainage connector, the metal blocking net comprises a top plate, a side wall and a connecting column, and filtering holes are arranged on the top plate and the side wall; 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 drainage connector is characterized in that a sinking groove is formed in the middle of the top plate, the upper end of the connecting column is connected with the lower surface of the top plate, and the connecting column extends into an inner cavity of the tubular part of the drainage connector and is connected with the inner cavity of the tubular part in a propping mode.

3. The drainage channel structure for steel structure buildings according to claim 1, wherein a plurality of siphon channels are provided in the drainage connector, the siphon channels extend from the inner wall surface of the tubular portion to the lower surface of the annular flange, each siphon channel is provided with a siphon inlet at the lower surface of the annular flange, the siphon channel is provided with a siphon outlet at the inner wall of the tubular portion, and the siphon outlet is lower than the siphon inlet; the annular flanging is bonded to the bottom of the drainage groove around the drainage hole through annular viscose glue, and the siphon outlet is located on the outer side of the annular bonding and communicated with the drainage groove water collecting space.

4. The drainage channel structure for steel structure buildings according to claim 1, wherein the drainage channel has an inner side plate located below the roof panel and an outer side plate located outside, a water bar is arranged between the inner side plate and the roof panel, and the upper and lower ends of the water bar are respectively connected with the lower surface of the roof panel and the upper end of the inner side plate in a sealing manner; be provided with splashproof structure on the outer panel, splashproof structure includes floater, slide bar, slide, connecting rod and flexible fender water cloth, the slide fixed connection be in the outer panel is inboard, the slide bar is in along vertical direction sliding connection on the slide, the floater is installed on the slide bar of slide top, the slide bar top is provided with level setting and perpendicular to the connecting rod of slide bar, the lower extreme of flexible fender water cloth with outer panel upper end sealing connection, the upper end of flexible fender water cloth with the connecting rod is connected.

5. The drainage channel structure for steel structure buildings according to claim 4, wherein the flexible water-blocking cloth is made of rubber material, and a plurality of horizontally arranged folds are formed on the flexible water-blocking cloth.

6. The drain channel structure for steel structure construction according to claim 1, wherein the drain pipe comprises 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 portion of the drain joint through a connecting pipe; the lower end of the first drainage pipe is connected with a water storage tank; the lower end of the second drain pipe is connected with the drainage ditch;

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

8. The mounting method of the drainage channel structure for the steel structure building is characterized by comprising the following steps of: