CN202612733U

CN202612733U - Bottom valve

Info

Publication number: CN202612733U
Application number: CN 201220232240
Authority: CN
Inventors: 白福丰; 裘旭升; 黄通成
Original assignee: XIAMEN SANIDENG PLASTICS INDUSTRY Co Ltd
Current assignee: XIAMEN SANIDENG PLASTICS INDUSTRY Co Ltd
Priority date: 2012-05-22
Filing date: 2012-05-22
Publication date: 2012-12-19
Anticipated expiration: 2022-05-22

Abstract

The utility model discloses a bottom valve which comprises an upper body, a lower body, a valve clack and a filter screen cover, wherein the upper body and the lower body are both through from top to bottom. The lower periphery of the outer rotative surface of the upper body protrudes outwards to form an upper flange, and the upper periphery of the outer rotative surface of the lower body protrudes outwards to form a lower flange. The upper flange is fixedly connected with the lower flange through bolts or screws. The lower end face of the upper body is connected with the upper end face of the lower body in sealing and adjoining mode. A waterway is formed between the upper body and the lower body. The valve clack is arranged in the lower body, and one end of the valve clack is connected with the lower body in pivoting mode. The filter screen cover is connected with an opening of the lower body in covering mode. The bottom valve has the advantages that the filter screen cover is arranged for filtration of sundries so that the sundries are prevented from entering the bodies, tightness of closing of the valve clack is ensured, and service life of the bottom valve is long.

Description

Bottom valve

Technical field

The utility model relates to a kind of bottom valve.

Background technique

Existing bottom valve, it comprises a body, a flap, is formed with the water route in the said body, said flap is articulated in the body and when following current, opens, and when adverse current, closes.Can bring foreign material into during flow, said foreign material can have influence on the sealing that lobe is closed in body, can shorten bottom valve working life.

The model utility content

The utility model provides a kind of bottom valve, and it has overcome the existing deficiency of bottom valve in the background technique.

The technological scheme that is adopted that the utility model solves its technical problem is:

A kind of bottom valve, it comprises a flap (30) and the filtering screen (40) that following body (20), that the upper body (10), that runs through up and down runs through is up and down opened and when adverse current, closed when following current; The outer turning surface lower periphery of said upper body (10) evagination becomes upper flange (11); The said outer turning surface upper peripheral edge of body (20) evagination down becomes lower flange (21); Said upper flange (11) and lower flange (21) are fixed together through bolt or screw; Said upper body (10) lower end surface abuts against together with the sealing of following body (20) upper-end surface, and, form the water route between said upper body (10) and following body (20); Said flap (30) is located at down in the body (20) and an end articulates body down; Said filtering screen (40) cover is connected on down the opening of body (20).

Among one preferred embodiment: said flap (30) is provided with sealing gasket (31).

Among one preferred embodiment: said following body (20) bottom convex Cheng Huantai (22), the interior turning surface of said ring platform (22) is the opening of following body (20); Said ring platform (22) is gone up the convex bulge loop (23) that is provided with of ring surface, and said bulge loop (23) upper-end surface becomes the inclined-plane; Said flap (30) one end pivot points are positioned at following body (20) and near the downside of bulge loop (23), and the adaptive lid of flap (30) ability be connected on bulge loop (23) upper-end surface.

Among one preferred embodiment: the pivot that convexes with two deads in line about said flap (30) one ends; Other sets two buckles, and said two buckle buckles are connected down body and are formed with the pivot hole of two deads in line; Said two pivots articulate two pivot holes respectively.

Among one preferred embodiment: said flap (30) is arranged with a circular groove, and said sealing gasket (31) is socketed in circular groove and abuts against bulge loop (23).

Among one preferred embodiment: said filtering screen (40) comprises that a solid cover and is fixed in the net body of solid cover, said overlap admittedly fixedly sleeved external and overlap end face admittedly and lean against lower flange at following.

Among one preferred embodiment: the material of said upper body, following body, flap all is the PVC-U material.

The present technique scheme is compared with background technique, and it has following advantage:

1, establishes filtering screen and filter foreign material, avoid foreign material to get into body, guarantee the sealing that flap is closed, the bottom valve long service life;

2, the bulge loop upper-end surface becomes the inclined-plane, and flap can be connected on the bulge loop upper-end surface by adaptive lid, and sealability is good;

3, flap one end pivot points is positioned at body and near the downside of bulge loop, and can be connected on the bulge loop upper-end surface by adaptive lid, and sealability is good.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

Fig. 1 has illustrated the generalized section of a kind of bottom valve of a preferred embodiment.

Fig. 2 has illustrated the perspective exploded view of a kind of bottom valve of a preferred embodiment.

Embodiment

A kind of bottom valve is please referred to Fig. 1 and Fig. 2, and it comprises following body 20, a flap 30 and the filtering screen 40 that the upper body 10, that runs through up and down runs through up and down.

Said upper body 10 outer turning surface lower periphery evaginations become upper flange 11; Said body 20 outer turning surface upper peripheral edge evaginations down become lower flange 21; Said upper flange 11 is fixed together through bolt 50 with lower flange 21; Said upper body 10 lower end surfaces abut against together with the sealing of following body 20 upper-end surfaces, and 20 of said upper body 10 and following bodies form the water route.For enhance seal performance, preferably establish O shape circle 60 between upper body 10 lower end surfaces and following body 20 upper-end surfaces.

Said flap 30 is located at down in the body 20 and an end articulates bodies down, so that close during following current, opens during adverse current.

Best, said following body 20 bottom convex Cheng Huantai 22, turning surface are the opening of following body 20 in the said ring platform 22; The convex bulge loop 23 that is provided with of ring surface on the said ring platform 22, said bulge loop 23 upper-end surfaces become the inclined-plane; Said flap 30 1 end pivot points are positioned at body 20 and near the downside of bulge loop 23, and can be connected on bulge loop 23 upper-end surfaces by adaptive lid, so that close during following current from bottom to top, open during top-down adverse current.

Best, the small diameter portion of the outer turning surface of the up big and down small ladder of said flap 30 is arranged with a circular groove, and other sets the ladder surface that sealing gasket 31 is socketed in circular groove and abuts against the outer turning surface of ladder, and when closing, sealing gasket 31 sealings abut against bulge loop 23.

Best, convex with the pivot of two deads in line about said flap 30 1 ends; Other sets two buckles, and said two buckle buckles are connected down body and are formed with the pivot hole of two deads in line; Said two pivots articulate two pivot holes respectively.

Said filtering screen 40 covers are connected on down the opening of body 20.Among the present embodiment, said filtering screen 40 comprises that a solid cover and is fixed in the net body of solid cover, said overlap admittedly fixedly sleeved external and overlap end face admittedly and lean against lower flange at following.

Among the present embodiment, the material of said upper body, following body, flap all is the PVC-U material.

The above; Be merely the utility model preferred embodiment; So can not limit the scope that the utility model is implemented according to this, the equivalence of promptly doing according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model contains.

Claims

1. bottom valve is characterized in that: it comprises a flap (30) and the filtering screen (40) that following body (20), that the upper body (10), that runs through up and down runs through is up and down opened and when adverse current, closed when following current; The outer turning surface lower periphery of said upper body (10) evagination becomes upper flange (11); The said outer turning surface upper peripheral edge of body (20) evagination down becomes lower flange (21); Said upper flange (11) and lower flange (21) are fixed together through bolt or screw; Said upper body (10) lower end surface abuts against together with the sealing of following body (20) upper-end surface, and, form the water route between said upper body (10) and following body (20); Said flap (30) is located at down in the body (20) and an end articulates body down; Said filtering screen (40) cover is connected on down the opening of body (20).

2. bottom valve according to claim 1 is characterized in that: said flap (30) is provided with sealing gasket (31).

3. bottom valve according to claim 1 and 2 is characterized in that: said following body (20) bottom convex Cheng Huantai (22), and the interior turning surface of said ring platform (22) is the opening of following body (20); Said ring platform (22) is gone up the convex bulge loop (23) that is provided with of ring surface, and said bulge loop (23) upper-end surface becomes the inclined-plane; Said flap (30) one end pivot points are positioned at following body (20) and near the downside of bulge loop (23), and the adaptive lid of flap (30) ability be connected on bulge loop (23) upper-end surface.

4. bottom valve according to claim 1 and 2 is characterized in that: the pivot that convexes with two deads in line about said flap (30) one ends; Other sets two buckles, and said two buckle buckles are connected down body and are formed with the pivot hole of two deads in line; Said two pivots articulate two pivot holes respectively.

5. bottom valve according to claim 1 and 2 is characterized in that: said flap (30) is arranged with a circular groove, and said sealing gasket (31) is socketed in circular groove and abuts against bulge loop (23).

6. bottom valve according to claim 1 and 2 is characterized in that: said filtering screen (40) comprises that a solid cover and is fixed in the net body of solid cover, said overlap admittedly fixedly sleeved external and overlap end face admittedly and lean against lower flange at following.

7. bottom valve according to claim 1 and 2 is characterized in that: the material of said upper body, following body, flap all is the PVC-U material.