CN201041248Y

CN201041248Y - Seepage proof check water-discharging valve for water conservancy trench

Info

Publication number: CN201041248Y
Application number: CNU2007201476608U
Authority: CN
Inventors: 陶柏林; 金利萍
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-04-25
Filing date: 2007-04-25
Publication date: 2008-03-26
Anticipated expiration: 2017-04-25

Abstract

The utility model provides a channel anti-seepage check drainage valve used for a hydraulic engineering. The check drainage valve comprises a casing body, a sealing seat, a floating ball, etc., wherein, the floating ball is arranged in the casing body; a sealing surface, a sand settling cavity, a diversion rib, etc. are arranged in the casing body; the effective flow passage area of the product is larger than the sectional area of the inside nominal diameter, thus the enough effective discharge capacity is ensured. The anti-seepage check drainage valve of the utility model is mainly applied to the hydraulic engineering. The anti-seepage check drainage valve has the advantages that the resistance of draining underground water to a channel is small, the discharge capacity is large, the channel water is effectively complemented, simultaneously, the return flow sealing performance is good, the capacity of preventing the channel water from penetrating underground is strong, and the sealing performance is good; the check drainage valve has automatic regulating function to the channel water and the underground water, protects channel slope protection, greatly reduces the loss of the channel water, and saves water resources.

Description

Water conservancy channel antiseepage check drain valve

Technical field

The utility model water conservancy channel is with antiseepage check drain valve, and particularly a kind of hydraulic engineering channel water that is used for prevents to permeate in underground and underground water and can enter water conservancy channel in the channel with antiseepage check drain valve.

Background technique

Traditional antiseepage non-return device all is that casing is arranged, honeycomb duct, compositions such as caulking gum turnover panel, when underground water level is higher than the channel water level, underground water flows into water tank by antiseepage check drainage means, promotes the rubber seal turnover panel through waste pipe, enter channel, water resistance is big, because the casing volume is big and be pressed on face under channel bank protection and the canal, maintenance difficult, and the sealing turnover panel is easy to lose efficacy malfunctioning, when underground water level is higher than the channel water position, because the underground water potential difference inside and outside the channel is less, if this device resistance of medium is big, in the time of can not in time entering in the channel, channel Slope protection plate savings ground water pressure down can not in time discharge, and Slope protection plate plays drum and expands, and the plate kickboard occurred, cracking, drift, or backstop seal failure, when underground water level was lower than the channel water level, channel water just can be penetrated into underground by Slope protection plate cracking or come off place or antiseepage non-return device continuously, reduce the conveying capacity of channel widely, can not be satisfied with the demand of hydraulic engineering.

Summary of the invention

The utility model provides a kind of little to the channel resistance of water drainage for overcoming above product drawback, the water conservancy channel that the antiseepage ability is strong antiseepage check drain valve.

The technical solution of the utility model realizes as follows: it is by upper shell (2), lower shell body (6), ball float (3), sealing sealing plate (4), sealing seat (5), sand setting chamber formations such as (7), be provided with hole slot (1) at upper shell (2) end face, its hole slot sectional area sum is greater than the inside nominal diameter sectional area, end-face structure is arranged by the difference in channel and should be made plane (be applied to canal at the bottom of) or inclined-plane (being applied to the canal slope), in lower shell body (6), be provided with sand setting chamber (7), be provided with sealing sealing plate (4) in lower shell body (6) outside, ball float (3) places, in the middle of the following two housings.

Above-mentioned sealing sealing plate (4) and sand setting chamber (7) are whole structure with lower shell body (6), and sealing surface is arranged on pipe place, upper end, sand setting chamber, and ball float (3) should be made composite hollow, and spherome surface should have enough elasticity.Upper and lower housing adopts seam to connect.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples:

Fig. 1 the utility model is applied to the structural representation of channel bottom;

Fig. 2 the utility model is applied to the structural representation of channel bank protection.

Among the figure: 1 hole slot, 2 upper shells, 3 ball floats, 4 sealing sealing plates, 5 sealing seats, 6 lower shell bodys, 7 sand setting chambeies.

Embodiment

Be provided with protective net at flat (awl) face of upper shell (2), rectangle or circle can be adopted in the protecting wire net hole, its aisle spare sum should be greater than product inside nominal diameter sectional area, its purpose is used to protect the water in a canal floating debris and other impurity enters in the product body, ball float (3) adopts composite structure, inner core adopts rigidity structure (guaranteeing enough mechanical strengths), surface recombination one deck rubber (should have enough elasticity to guarantee sealing), the outer sealing sealing plate (4) that is provided with of lower shell body (6), being used for product is embedded in when underground and combines with the waterproof membrane sealing, in lower shell body, be provided with the sand setting chamber and be used for deposition silt, ball float (3) places, down in the middle of two shells, when underground water level is higher than the channel water position, underground water is entered by lower shell body (6), ball float (3) is operation upwards, underground water is through ball float (3), upper shell (2) protection hole slot (1) enters in the canal, replenish the water source, when underground water level is lower than the channel water position, the sealing seat (5) that ball float (3) falls back to lower shell body (6) is automatically located, this moment, product was in closed condition, intercepted channel water and entered underground.Upper and lower casing adopts and ends (inserting) mouthful connection.

The utility model has reliable compared with prior art, and pressure drop is little, and seepage capability is strong, and making should The property height, good rigidity, easy to maintenance, can be widely used in water-control project.

Claims

1. a water conservancy channel is with antiseepage check drain valve, by upper shell (2), lower shell body (6), ball float (3) constitutes, it is characterized in that: the upper shell end face is provided with the hole slot (1) of some quantity, lower shell body (6) outside is provided with sealing sealing plate (4), and the inboard is provided with sand setting chamber (7) and sealing surface (5), and ball float (3) adopts spheroid or spheroid structure.

2. water conservancy channel according to claim 1 antiseepage check drain valve is characterized in that: lower shell body (6) is provided with sand setting die cavity (7) with sealing sealing plate (4) and inside and sealing seat (5) is overall structure.

3. water conservancy channel according to claim 1 is characterized in that: ball float (3) employing composite hollow spheroid with antiseepage check drain valve.