CN2778948Y

CN2778948Y - Siphon water drain rain strainer

Info

Publication number: CN2778948Y
Application number: CN 200520068562
Authority: CN
Inventors: 高德林
Original assignee: NANJING HUITONG ENGINEERING TECHNOLOGY Co Ltd
Current assignee: NANJING HUITONG ENGINEERING TECHNOLOGY Co Ltd
Priority date: 2005-01-25
Filing date: 2005-01-25
Publication date: 2006-05-10
Anticipated expiration: 2015-01-25

Abstract

The utility model relates to a siphon water-drain rain strainer for draining rain on the roof surfaces of buildings, which comprises a bucket type bottom disc and a blade-preventing cover, wherein the bucket type bottom disc comprises a disc body and a water outlet pipe; the blade-preventing cover comprises a top plate, the lower side of the top plate is provided with a plurality of lower-layer fins extending downwards, and the lower-layer fins are radially arranged by definite circumferential intervals to form lateral water inlets; the upper side of the top plate is provided with upper-layer fins in circumferential and radial arrangement, and longitudinal water inlets are formed between the outer edge of the top plate and the adjacent upper-layer fins. The siphon water-drain rain strainer comprises water inlet passages of a lateral and a longitudinal directions so as to smooth drain water, keep the siphon water draining effect of full-pipe water drain of a water draining pipe and have good anti-blocking performance.

Description

The siphon drainage roof drain

Technical field

The utility model relates to a kind of siphon drainage roof drain that is used to the row's of letting out building roofing rainwater.

Background technology

Usually, the rainwater of building roofing flows into the ditch (calling gutter in the following text) of eaves earlier, and the outfall from gutter flows into drainage system by tail pipe then.Roof drain is that a kind of rainwater that is contained on this gutter outlet is let out arranging device, it has the foreign material of stopping, avoid the function of gutter blocking, main is, and it can make gutter be in full packages to let out row, avoid entering in the pipe air or produce eddy current, in exhaust system, form the siphon state, thus can steady and continuous the row's of letting out rain water on roof apace.At present, roof drain generally is made up of bucket type chassis and anti-leaf cover, the circumference side of anti-leaf cover is distributed with radially water inlet, this roof drain is owing to only be provided with the side import, when the part import is stopped up by leaf or foreign material, can make water impeded drainage in the ditch, when in the gutter during water shortage, original siphon balance is destroyed, causes rainwater spill-over in the ditch, arbitrarily diarrhea earthward.

Technology contents

The purpose of this utility model provides a kind of improved siphon drainage roof drain, and vertical water inlet is set, and causes the drawback of impeded drainage to improve the water inlet blocking.

This siphon drainage roof drain comprises bucket type chassis and anti-leaf cover, and said bucket type chassis comprises disk body and outlet pipe; Said anti-leaf cover contains top board, and top board has several radial fins (calling lower floor's fin in the following text) of downward extension, and each lower floor's fin is with the circumferential arrangement of a determining deviation along top board; Each adjacent fins forms the lateral intake mouth at the downside of top board; Said top board is connected by bolt with the disk body on bucket type chassis; The utility model is provided with the upper strata fin of circumference arranged radially at the upside of top board, forms vertical water inlet between top board outer rim and the upper strata adjacent fins.The outer end of upper and lower two-layer fin links to each other with same cast frame, to gain in strength.

The utility model siphon drainage roof drain not only contains the horizontal water inlet of lower floor's side level water inlet, and has increased the vertical water inlet in upper strata, and upper and lower fin stops from floating next foreign material such as leaf all around and from the top to have good anti-blocking performance respectively.Because two-layer fin forms the intake tunnel of side direction and vertical both direction respectively, can guarantee that more the draining of roof drain is unimpeded simultaneously, thereby keep the siphon drainage effect of gutter full packages draining.

Description of drawings

Fig. 1 is the stereochemical structure embodiment schematic diagram of this siphon drainage roof drain.

Fig. 2 is the vertical view of Fig. 1.

Fig. 3 is the A-A sectional view of Fig. 1.

As Fig. 1, Fig. 2, shown in Figure 3, disk body 3 and outlet pipe 5 are formed bucket type chassis; Several lower floor's fins 6 radially that top board 4 has a downward extension, the upside of top board 4 is provided with the radially upper strata fin 1 of circumferential arrangement, and each upper strata fin 1 all is connected on the same cast frame 2 with the outer end of lower panel 6.Upper plate 4, upper panel 1, lower panel 6, cast frame 2 have been formed the anti-leaf cover of cast-in-block.Bolt 7 (see figure 3)s are connected between top board 4 and the disk body 3, will prevent that leaf cover and chassis are linked to be roof drain.Top board 4 each lower floor's fin 6 and upper strata fin 1 are arranged with certain circumference spacing at the downside and the upside of top board 4 respectively; Be to form vertical water inlet 10 (see figure 2)s between the outer rim of adjacent upper strata fin 1 of lateral intake mouth 9, two and top board 4 between two adjacent lower floor's fins 6.In this example, the circumference spacing between the upper strata fin 1 is 2 times of lower floor's fin spacing.

This roof drain is loaded in the eaves gutter, lower end outlet pipe 5 is linked to each other with the drainage system tail pipe by screw thread, from rainwater in the gutter of roofing promptly from the side water inlet flow in the centre bore on bucket type chassis, flow into drainage system from managing 5 through tail pipe subsequently.When liquid level surpassed the height of top board 4 in the gutter, current can be intake downwards along the outer rim of top board 4 from the vertical water inlet between the upper strata fin 1 simultaneously.In this process, stopped by fin 6 and fin 1 from the foreign material that reach top all around, prevent to enter lower pipeline and result in blockage.In the utility model, though the part lateral inflow mouth of lower floor since foreign material too much and during blocking, rainwater still can be intake downwards from the upper strata, makes day ditch water discharge unimpeded, gutter still can be in full packages and let out row, keeps best siphon drainage state.

This roof drain is made with metal material, can be weldingly connected with metal gutter during installation.If the gutter that nonmetallic building material is made, then this roof drain also has chuck 8 (Fig. 3) again on the disk body 3 on chassis, installs waterproof roll additional during installation between chuck 8 and disk body 3.

Claims

1. the siphon drainage roof drain comprises bucket type chassis and anti-leaf cover, and said bucket type chassis comprises disk body (3) and outlet pipe (5); Said anti-leaf cover contains top board (4), several lower floor's fins (6) radially that top board (4) has a downward extension, and each lower floor's fin is with the circumferential arrangement of a determining deviation along top board (4); Top board (4) is connected by bolt with disk body (3), and the downside at top board between each adjacent fins forms lateral intake mouth (9); Said top board (4) is connected by bolt (7) with the disk body (3) on bucket type chassis; It is characterized in that the upside at top board (4) is provided with the upper strata fin (1) of circumference arranged radially, form vertical water inlet (10) between the outer rim of top board (4) and the upper strata adjacent fins (1).

2. siphon drainage roof drain according to claim 1 is characterized in that the outer end of upper strata fin (1) and lower floor's fin (6) is connected on the same cast frame (2).

3. siphon drainage roof drain according to claim 1 is characterized in that circumference spacing between the upper strata fin (1) is 2 times of lower floor's fin (6) spacing.

4. according to claim 1 or 2 or 3 described siphon drainage roof drains, it is characterized in that chuck (8) is also arranged on the disk body 3 again, install waterproof roll additional between chuck 8 and the disk body 3.