CN201166814Y - Apparatus for automatically holding water tank water level - Google Patents

Abstract

The utility model discloses an automatic water level retaining device of water tanks, which is mainly composed of a water pump, a floater for monitoring the water level, a water storage pipe and a control circuit. The floater is composed of an outer layer and an inner layer, wherein the outer layer is a plastic tank with a small hole at one end and the inner layer is a plastic pipe. Two slots are arranged inside the plastic pipe. Steel balls are placed inside the slots. A micro-switch is fixed at the lower part of the plastic pipe. The moving contact and the two static contacts of the micros-witch are welded at one end of a three-core rubber-coated cable. The other end of the three-core rubber-coated cable is led out of the small hole of the plastic tank and then is connected with the control circuit of the water pump after being fixed by a ball valve. The automatic water level retaining device can automatically retain the water level of the water tank at a certain preset value.

Description

A kind of water level in water pool automatic holding device

Technical field

The utility model relates to the liquid level self-checking device, specifically, relates to a kind of device that can make water level in the pond remain on setting value automatically.

Background technology

In some water works, water level in the pond need keep certain level, the device of monitoring water level adopts the electrode sampling mostly, sampled signal is after circuit amplifies, by relay control water pumper, because sampling electrode is immersed in the water the easy corrosion of electrode throughout the year, and then causing the malfunctioning or misoperation of water level controller, phenomenons such as water level in water pool deficiency, spilling water appear easily.

Summary of the invention

The purpose of this utility model provides a kind of degree of accuracy height, stable strong water level in water pool automatic holding device, mainly form by water pumper, float, water pipe and control circuit, its principle of work is: the float inside of monitoring height of water level is equipped with steel ball and microswitch, when the water level in pond reduces, the bottom of float moves down with water level, and steel ball slides to microswitch, microswitch normally opened contact closure, relay gets electronic work, and water pumper is toward the pond retaining; When water level is higher than when limiting water level, the bottom of float is with moving on the water level, the steel ball microswitch that slips away, and the microswitch normally opened contact disconnects, the relay electric-loss action, water pumper stops retaining, and water level in water pool is controlled in certain scope.

Beneficial effect

The beneficial effects of the utility model are: the outside of float of monitoring water level is a plastic seal bucket, and its interior arrangement is isolated with water and is difficult for getting rusty, and is more suitable in the pool, place uses such as water tower and cesspool.

Description of drawings

Fig. 1 is an one-piece construction synoptic diagram of the present utility model.

Fig. 2 is a float inner structure synoptic diagram of the present utility model.

Fig. 3 is a control circuit schematic diagram of the present utility model.

Embodiment

The utility model will be further described below in conjunction with accompanying drawing.

In Fig. 1, water pumper (1) is placed on the bottom of well (3), water in the well (3) is guided to pond (4) by retaining band (5), one end of retaining band (5) is positioned on the water pumper (1), the other end is placed in the pond (4), and the float (2) that is used to monitor height of water level passes ball valve (6) by the cable of drawing from its inside and is fixed on to the appropriate location.

In Fig. 2, float (4) is made up of the plastic tube (10) of outer field Plastic Drum (9) and internal layer, and the internal diameter of plastic tube (10) is 20mm, and plastic tube (10) is sawn into each 1 of long 80mm, 15mm respectively, 30mm long 3 (two be divided into two to cutting open).Wherein need to adjust as follows before the interface spacing of the 8mm bonding: the steel ball (7) that is a diameter 18mm is placed in the interface slot of plastic tube (10), slowly tilt plastic tube (10) when 30 spend, steel ball (7) should slide to the other end, if slide to the other end when spending less than 30, then should strengthen the distance of 8mm interface, slide to the other end when spending, then should reduce the distance of 8mm interface greater than 30.Being trimmed to diameter with plastic bottle closure again is that the disk of 19.5mm is done the two ends plug, steel ball (7) is put into the long interface slot of 15mm, and maintenance level, plug (13) is put into the distance of plastic tube (10) apart from the about 1mm of steel ball (7), with glue plug (13) is clung, and reinforce with glass cement glue one circle.The other end of plastic tube (10) is with 1 1mm ²Three core rubber jacket cables (11), on moving contact that is welded on microswitch (8) and 2 stationary contacts, going up boring at plug (12) draws, plug (12) withstands three legs of microswitch (8), put into plastic tube (10) then, plastic tube (10) is tilted, steel ball (10) is slipped in the interface slot, and it is crowded inwards plug (12), making microswitch (8) withstand steel ball (7) gets final product up to back the squeezing a bit to the inside of microswitch (8) action, gum plug (12) immediately down, use glass cement equally in plug (12) glue one circle reinforcing on every side.Then, plastic tube (10) is put into a Plastic Drum (9), the end that microswitch (8) is housed down, and in the hole that can pass through triple cable (11) of the last brill of the bung (14) of Plastic Drum, triple cable (11) is drawn from the hole of bung (14), bung (14) is tightened, at the aperture interface glue enhanced leaktightness of triple cable (11) with bung (14).Make weight with a ball valve (6), triple cable (11) is closed ball valve (6) pass through to the appropriate location from ball valve (6) after, and triple cable (11) is just fixing with ball valve (6), and it is too tight to notice that ball valve (6) can not close, otherwise can be bad triple cable (11) folder.

In Fig. 3,1 and 3 ends in three core rubber jacket cable (11) connection circuits that connect microswitch (8) normally opened contact.When the decline of water table in pond (2), the inner steel ball (7) of float (4) slides to microswitch (8), the weight of steel ball (7) is depressed microswitch (8) and is made the normally opened contact closure, relay K gets electric adhesive, the normally opened contact conducting, A.C. contactor KM gets electronic work, and water pumper (3) begins to draw water; When water level rises, steel ball (7) microswitch (8) that slips away, normally opened contact disconnects, the relay K dead electricity, contact separation, the KM contact disconnects, and water pumper (3) quits work.SA is automatic and hand control switch, and SA presses SB2 when manual position, and water pumper (3) work is pressed SB1 water pumper (3) and quit work.

Claims (2)

1, a kind of water level in water pool automatic holding device mainly is made up of water pumper (1), float (2), water pipe (5) and control circuit, it is characterized in that:

The skin of described float (2) is the Plastic Drum (9) that an end has aperture, the internal layer of float (2) is a plastic tube (10), be provided with two place's interface slots in the plastic tube (10), steel ball (7) is placed in the interface slot, microswitch (8) is fixed on the bottom of plastic tube (10), its moving contact and two stationary contacts are welded on an end of three core rubber jacket cables (11), the other end of three core rubber jacket cables (11) is drawn from the aperture of Plastic Drum (9), and after ball valve (6) is fixing respectively with control circuit in 1 end and 3 ends join.

2, water level in water pool automatic holding device according to claim 1 is characterized in that: the distance between described float (2) and the ball valve (6) can be adjusted as required.