CN2798294Y

CN2798294Y - Turnover float ball liquid level switch

Info

Publication number: CN2798294Y
Application number: CN 200520069173
Authority: CN
Inventors: 杜虎荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-02-18
Filing date: 2005-02-18
Publication date: 2006-07-19
Anticipated expiration: 2015-02-18

Abstract

The utility model relates to a turnover liquid level switch for a floating ball, which can measure and control high liquid level and low liquid level. A cable is connected to one end of the floating ball and is fixed in measured liquid according to the positions of the high liquid level and the low liquid level. The floating ball is along with the elevation of the liquid level and turns over vertically because of the diversion of the cable when the liquid level rises to a high position or falls to a low position. A gravity ball in a conduit runs following the turnover of the floating ball in the floating ball. Under the action of the gravity ball, and switching operation is realized by a dry contact switch under the function of the gravity ball. The action signal of the dry contact switch is extracted by the cable connected with the floating ball, and thus, the measurement and the control of the high liquid level and the low liquid level can be realized.

Description

Convertible floating-ball level switch

Affiliated technical field

The utility model relates to a kind of liquid-level switch, is particularly useful for the convertible floating-ball level switch that occasions such as ground well, sewage, turbulent flow are measured, controlled two position.

Background technology

No matter existing floating-ball level switch is roof-mounted or side-mounted, and its ball float is with the liquid level lifting, the drivening rod lifting, thus touching the dry contact switch motion, ball float only moves up and down, and can not overturn, and the dry contact switch is installed in the gauge outfit, not in ball float.Under the situation that turbulent flow or eddy current are arranged, the ball float swing easily causes the dry contact jitter, and the motion spacing of ball float is subjected to the restriction of connecting rod, and the measuring range between the two position is less.Under certain application scenario,, in the low liquid level stopping time, just need to use two table flotation ball liquid-level switches to come the start-stop of control pump, not only inconvenience but also increase cost of equipment as high liquid level turn on pump.

Summary of the invention

There are jitter and the little problem of measuring range in order to overcome existing floating-ball level switch in application scenarios such as ground well, sewage, turbulent flows, the utility model provides a kind of convertible floating-ball level switch, can address the above problem, and this liquid-level switch can also be measured two liquid levels of the bigger height of drop simultaneously.

The technical scheme that its technical problem that solves the utility model adopts is: utilize the motion of the gravity ball (5) in the ball float (1) to make in contact switch (6) and move.Connect a cable (2) that transmits signal in a termination of oval ball float (1), dry contact switch (6) in this cable (2) and the ball float (1) is connected, utilize cable (2) that ball float (1) is fixed in the liquid, make the ball float (1) can only lifting between two position.As Fig. 1 ~ shown in Figure 3, when ball float (1) descends with liquid level, cable (2) tension ball float (1) causes its inclination, when liquid level during to minimum point, finally make ball float (1) upset, gravity ball (5) in the ball float (1) is slipped to the Lower Half of ball float (1) under the effect of gravity, can also play stable effect to ball float (1) when making the dry contact switch (6) that hangs down liquid level closed.As Fig. 4 ~ shown in Figure 6, when ball float (1) rises with liquid level, cable (2) tension ball float (1) causes its inclination, when liquid level during to peak, finally make ball float (1) upset, gravity ball (5) is slipped to the Lower Half of ball float (1) once more, opens the dry contact switch (6) of low liquid level, makes dry contact switch (6) closure of high liquid level.By cable (2) signal of the dry contact switch (6) of two position is drawn, reach the purpose of measurement, control two position.

The beneficial effects of the utility model are: for providing a kind of, application scenarios such as ground well, sewage, turbulent flow reliable simple measure, the method for control two position, and simple in structure, expense is low.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 ~ Fig. 6 is the ball float inversion principle figure of the convertible floating-ball level switch of the utility model.

Fig. 7 is the convertible floating-ball level switch structure chart of the utility model.

Fig. 8 is first kind of installation diagram of the convertible floating-ball level switch of the utility model.

Fig. 9 is second kind of installation diagram of the convertible floating-ball level switch of the utility model.

Each component names is as follows among Fig. 1 ~ Fig. 9:

1, ball float

2, cable

3, cable knot

4, gravity drop hammer

5, gravity ball

6, dry contact switch

7, conduit

8, flexible bending sheath

9, external controller

10, cable fixing clamp/clip

Embodiment

In Fig. 7, the profile of ball float (1) is an ellipse small in ends, broad in the middle, and there is dry contact switch (6), gravity ball (5) and the operation conduit (7) thereof of the dry contact switch (6) of high liquid level, low liquid level its inside.Gravity ball (5) but sphere or cylindricality, with the upset of ball float (1), gravity ball (5) leans on the effect of gravity to be slipped to the other end from an end in operation conduit (7), utilizes the deadweight of gravity ball (5) to make (6) closures of dry contact switch, another is opened.Cable (2) is connected with an end of ball float (1) by flexible bending sheath (8), is connected with the dry contact switch (6) of two two positions in ball float (1) again, plays the fixedly effect of ball float (1) and transmission signal.

In the embodiment shown in fig. 8, with cable knot (3) attached cable (2), the position of cable knot (3) is at the intermediate point of two position, and cable (2) length between ball float (1) and the cable knot (3) is determined according to two position point.

In the embodiment shown in fig. 9, gravity drop hammer (4) is fixed on the cable (2), the position is identical with the position that cable embodiment illustrated in fig. 8 is tied (3), but the top of cable (2) will use cable fixing clamp/clip (10) fixing, the position that guarantees gravity bell (4) can not descend, and ball float (1) is put in the measured liquid together with cable (2) and gravity bell (4) get final product.

Claims

1, a kind of convertible floating-ball level switch, form by ball float, dry contact switch, it is characterized in that: gravity ball (5) and operation conduit (7) thereof are arranged in the ball float (1), conduit (7) two ends are separately installed with dry contact switch (6), ball float (1) one end connects the cable (2) that transmits signal, and the inner dry contact switch (6) of ball float (1) is connected with ball float (1) external cable (2).

2, convertible floating-ball level switch according to claim 1 is characterized in that: the profile of ball float (1) is an ellipse small in ends, broad in the middle.

3, convertible floating-ball level switch according to claim 1 is characterized in that: gravity ball (5) can be sphere or cylindricality, and it overturns with ball float (1) and is slipped to the Lower Half of ball float (1), makes dry contact switch (6) action.