CN2142978Y - Automatic controller for liquid level - Google Patents

Abstract

The utility model provides an automatic controller for liquid level, mainly comprising a switch (1), a float (2) and a sleeve (3). The utility model is characterized in that the lower end of the float (2) is connected with a floating ball (5) through a flexible wire (4). The buoyancy of the float (2) makes the power switch (1) of a water pump close or disengage to achieve the function of the control of the liquid level by making use of the float (2) and the floating ball (5). Simultaneously, adjusting the length of the flexible wire (4) can also adjust the control range of the liquid level. So the utility model has the advantages of simple structure, low cost and convenient operation.

Description

Automatic controller for liquid level

The utility model relates to a kind of on-electric variable control device, more particularly relates to a kind of mechanical type automatic control of liquid device, mainly is applicable to the occasion that does not need to keep constant level.

Existing fluid level controller of a great variety, but resemble water tower, this class of water tank does not need to keep constant level and the very abominable occasion of working environment is then still in the majority with the mechanical type fluid level controller.Existing machinery formula fluid level controller is not broken away from the control model of using float lifting on the water surface to drive electric switch yet, therefore it can only be with a certain position of water surface basic controlling at water tank, must cause the frequent starting of pump motor, shorten motor serviceable life.

In view of the above-mentioned defective of existing in prior technology, the utility model discloses the simple and easy automatic control of liquid device of a kind of modified, is intended to make full use of the useful volume of water tank, reduces the pump motor number of starts, prolongs motor serviceable life.

The utility model realizes that the technical solution of above-mentioned purpose mainly comprises switch, float and sleeve, is characterized in that the lower end of float is connected with ball float by flexible cord.

Thereby above-mentioned technical solution of the present utility model mainly is the closure of utilizing the deadweight of plus-minus ball float and controlling the pump motor switch by float controls liquid level with disengagement, so structure is very simple, reliable operation; Secondly, above-mentioned technical solution of the present utility model just can be adjusted the liquid level range of control as long as adjust the length of the flexible cord that connects float and ball float, and is easy to operate.

Below in conjunction with accompanying drawing and possible embodiments the utility model is explained in further detail.

Description of drawings

Figure of description is the structural representation of a kind of specific embodiments of the present utility model, numbering 1--switch among the figure, 2--float, 3--sleeve, 4--flexible cord, 5--ball float, 6--push rod, 7--handle, 8--protection box, 9--water tank.

Embodiment

With reference to accompanying drawing, present embodiment is a kind of concrete scheme that the utility model is used for control water level.

With reference to accompanying drawing, less than 1 and the material float (2) that do not absorb water, this float (2) is located in the sleeve cylindraceous (3) with proportion, and can string is moving up and down in sleeve (3); Sleeve (3) is provided with protection box (8), float (2) protrudes upward a push rod (6), and this push rod (6) passes the top of sleeve (3) and the base of protection box (8) uses the handle (7) of toggle switch (1) hinged with the illumination that is located in the protection box (8); Be not more than 1 and the ball float of material (5) that do not absorb water with proportion, this ball float (5) ties up to the lower end of float (2) with a flexible cord (4).

The utility model must guarantee following condition when making: 1, the gravity sum of float (2) and ball float (5) is greater than required strength that switch (1) is left behind; 2, the buoyancy of float (2) is greater than switch (1) is pushed to required strength.

With reference to accompanying drawing, the utility model is installed on the water tank (9), when water level during at the A place, switch (1) is left behind in the gravity sum synergy of float (2) and ball float (5), connects the power supply pump water of pump motor; Along with the rising of water level, the gravity of ball float (5) is offset by the buoyancy of himself, and when water level continued to rise to the B place, the buoyancy of float (2) was pushed to switch (1), cuts off the electricity supply, and stops pump water.When if water level drops to the A place again, energized pump water again, so moving in circles is controlled at water level between A, the B.Adjust the length of flexible cord and can adjust the Water Level Control scope easily, can change the difference in height that A point and B are ordered.

Claims (3)

1, a kind of automatic control of liquid device mainly comprises switch (1), float (2) and sleeve (3), it is characterized in that the lower end of float (2) is connected with ball float (5) by flexible cord (4).

2, a kind of automatic control of liquid device according to claim 1, it is hinged with the handle (7) of switch (1) that the upper end that it is characterized in that float (2) protrudes upward a push rod (6).

3, a kind of automatic control of liquid device according to claim 1 and 2 is characterized in that sleeve (3) is provided with protection box (8), and switch (1) is located in the protection box (8).

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