CN202381776U

CN202381776U - Bottom valve

Info

Publication number: CN202381776U
Application number: CN2011205774903U
Authority: CN
Inventors: 杨恒; 孙宝秋; 孙宝聪
Original assignee: ZHEJIANG TEHONG WANG SPECIAL VALVE CO Ltd
Current assignee: ZHEJIANG TEHONG WANG SPECIAL VALVE CO Ltd
Priority date: 2011-12-29
Filing date: 2011-12-29
Publication date: 2012-08-15
Anticipated expiration: 2021-12-29

Abstract

The utility model discloses a bottom valve, which comprises a valve body. A valve seat is arranged in the valve body, a valve clack is disposed on the valve seat and provided with an opening control mechanism, the opening control mechanism consists of a support, one end of the support is rotationally connected onto the inner wall, which is positioned below the valve clack, of the valve body, the support is provided with a supporting rod, one end of the supporting rod is abutted onto the valve clack, and the outer side end of the support is connected with an upward pulling mechanism. The opening control mechanism is configured in the bottom valve, a principle of the opening control mechanism includes that the support is driven to upwards swing relative to a rotating connecting fulcrum on the inner wall of the valve body by the upward pulling mechanism, the valve clack of the bottom valve is upwards supported by the supporting rod in the support, accordingly, the bottom valve is manually controlled to be opened, and can drain water at any time, and frost damage to a water suction pipe of a water pump is prevented in a frost period in winter.

Description

A kind of bottom valve

Technical field

The utility model relates to a kind of bottom valve.

Background technique

Bottom valve is a kind of valve of energy saving, generally is installed in the water pump bottom of suction sleeve under water, is used to limit the water pump liquid in pipe and returns the water source, plays the function of one-way valve.But before the long-term in the winter time termination of pumping, if untimely the draining of water in the suction sleeve will cause suction sleeve to be damaged by frost.

Summary of the invention

The utility model technical problem to be solved provides a kind of bottom valve that can control the artificial unlatching of flap.

For this reason, the bottom valve that the utility model provides comprises valve body; Have valve seat in the valve body; Valve seat is provided with flap, and flap disposes the unlatching control mechanism, opens control mechanism and comprises that an end is rotationally connected with the support on the valve interior wall of flap below; Support has an end and withstands on the strut on the flap, and the support outboard end is connected with last pull mechanism.

Owing to disposed the unlatching control mechanism in the bottom valve that the utility model provides; Its principle is to impel support its upwards swing of fulcrum that is rotationally connected on valve interior wall relatively through last pull mechanism; Make the strut on the support upwards prop up the bottom valve flap; Thereby realize that manually operated mode opens bottom valve, make bottom valve carry out draining at any time, avoid making the suction sleeve of water pump to be damaged by frost in freeze up period in winter.

Description of drawings

The bottom valve that Fig. 1 the utility model provides is not provided with the structure cross-sectional schematic when opening control mechanism.

Fig. 2 is the principle schematic of the unlatching control mechanism of the bottom valve configuration among Fig. 1.

Embodiment

Like Fig. 1, shown in Figure 2, the bottom valve that the utility model provides comprises valve body 1; Have valve seat 2 in the valve body 1; Valve seat 2 is provided with flap 3, and flap 3 disposes the unlatching control mechanism, opens control mechanism and comprises that an end is rotationally connected with the support 4 on valve body 1 inwall of flap 3 belows; Support 4 has an end and withstands on the strut 5 on the flap 3, and support 4 outboard ends are connected with last pull mechanism.In the present embodiment, last pull mechanism comprises stay cord 6 and swing handle 7, and stay cord 6 is connected in an end of swing handle 7; Swing handle 7 is rotationally connected with on the shelf 8, can depress handle 7 during use and impel handle 7 swings, the other end pulling stay cord 6 of handle 7; Stay cord 6 pull-up supports 4 impel the strut 5 jack-up flaps 3 on the support 4, and shelf 8 is arranged on the basic platform; Basic platform can be ground, also can be any platform that supplies shelf 8 to place.

Claims

1. bottom valve; Comprise valve body (1), have valve seat (2) in the valve body (1), valve seat (2) is provided with flap (3); It is characterized in that: said flap (3) disposes the unlatching control mechanism; Open control mechanism and comprise that an end is rotationally connected with the support (4) on valve body (1) inwall of flap (3) below, said support (4) has an end and withstands on the strut (5) on the flap (3), and said support (4) outboard end is connected with last pull mechanism.

2. bottom valve according to claim 1; It is characterized in that: the said pull mechanism that goes up comprises stay cord (6) and swing handle (7); Stay cord (6) is connected in an end of swing handle (7), and said swing handle (7) is rotationally connected with on the shelf (8), and shelf (8) is arranged on the basic platform.