CN2703150Y - Automatic controlling device for domestic water pump - Google Patents

Abstract

The utility model relates to an automatic controlling device for domestic water pump which belongs to the technical field of the control technique of a water pump. The utility model solves the problem of providing a domestic water pump controller with simple structure. The scheme for solving the technical problem consists of a switch of the water pump, a controller, a water service pipe and the water pump. Movable contacts and stationary contacts of the controller are connected with the water pump in series, and the movable contacts and the stationary contacts of the controller are connected with an AC power supply. A rubber membrane is arranged in a shell. The lower end of the water service pipe is inserted into the water, and the upper end of the water service pipe is arranged on the lower end of the shell whose lower cavity and the water surface of the water service pipe contain partial air. The rubber membrane bears the air pressure. One end of a conductive strip is arranged on the shell, and the other end is provided with a movable contact. A transmission elastic sheet and the conductive strip are integrated in one part whose end is moveable. A quick-action spring is arranged between the end of the transmission elastic sheet and the end of the conductive strip. A push rod is arranged between the upper end of the rubber membrane and the lower end of the transmission elastic sheet. A spring seat is arranged above the transmission elastic sheet, and a restoring spring is arranged between the spring seat and the lower surface of the upper part of the shell. The automatic controlling device for domestic water pump is applied to the control of the water pump, with the advantages of simple structure and low cost.

Description

The piston type domestic water pump automatic controller

Technical field

The utility model belongs to the pump control unit technical field.

Background technique

Piston type domestic water pump generally is evacuated to water in wet pit or the container.Prior art piston type domestic water pump control gear, with electrode in the container of pond or float sensed water level, when water level arrived designated water level, testing circuit sent testing signal, and drive circuit promptly disconnects the water pump circuit quits work it.This kind device circuit link is many, easily gives birth to fault, and cost is higher.

Summary of the invention

Technical problem to be solved provides the low piston type domestic water pump control gear of a kind of cost of production simple in structure.

The technological scheme that solves its technical problem is as follows: the piston type domestic water pump automatic controller comprises pump switch, controller, water service pipe and water pump.The movable contact of controller and stationary contact and water pump are connected into series circuit, are connected with 220 volts of ac power supplys.Controller comprises housing, rubber membrane, conducting plate, transmission shell fragment, movable contact, stationary contact, quick-action spring, push rod, reset spring and spring seat.Rubber membrane is loaded in the housing inner chamber, and the housing inner chamber is divided into isolated up and down epicoele and cavity of resorption.The water service pipe hypomere inserts in the water, and epimere is contained on the lower end of housing, and the endoporus of water service pipe communicates with the housing cavity of resorption, and the space of going up between the water surface in housing cavity of resorption and the water service pipe retains portion of air, and the air pressure of this a part of air is experienced in the lower end surface of rubber membrane.One end of conducting plate is contained on the housing, on the other end end movable contact is arranged.Transmission shell fragment and conducting plate are one, and an end of transmission shell fragment is connected with the fixed end of conducting plate, and the other end end can be movable.Stationary contact is contained in the housing epicoele, and the movable contact of conducting plate contacted with stationary contact when water level was low at ordinary times.The quick-action spring is contained between transmission shell fragment end and the conducting plate end.Push rod is in the middle part of the upper-end surface of rubber membrane and between the lower end surface of transmission shell fragment.Spring seat is contained on the upper-end surface of transmission shell fragment, and reset spring is contained between the lower end surface on spring seat and housing top.

When the water level in the container of pond was lower than the water level of setting, the water level in the water service pipe reduced, and the air pressure in the controller shell cavity of resorption also reduces, and rubber membrane can not raise up, movable contact and stationary contact closure, pump working.When water level in the container of pond raises, water level raises in the water service pipe, housing cavity of resorption internal air pressure raises, and the rubber membrane middle part raises up, and push rod moves up, make on the transmission shell fragment and move, and compression quick-action spring, when moving on on the transmission shell fragment end when being higher than the equilibrium position, the quick-action spring just promotes the conducting plate end and moves downward, make movable contact and stationary contact disconnect Pump Failure.When water level is reduced to when being lower than designated water level once more, housing cavity of resorption air pressure reduces, and reset spring promotes the transmission shell fragment and moves downward, and when transmission shell fragment end moves down into when being lower than the equilibrium position, movable contact contacts with stationary contact, and water pump is task again.

Description of drawings

Fig. 1 is a structural drawing of the present utility model.Fig. 1 is described as follows: 1 is pump switch, and 2 is controller, and 3 is water service pipe, and 4 is water pump, and 5 is housing, 6 is rubber membrane, and 7 is conducting plate, and 8 are the transmission shell fragment, and 9 is stationary contact, and 10 is movable contact, 11 are the quick-action spring, and 12 is push rod, and 13 is reset spring, and 14 is spring seat.

Embodiment

Embodiment is as follows: the movable contact 10 of controller 2 and stationary contact 9 are connected into series circuit with water pump 4, are connected with 220 volts of ac power supplys.Controller 2 comprises housing 5, rubber membrane 6, conducting plate 7, transmission shell fragment 8, movable contact 10, stationary contact 9, quick-action spring 11, push rod 12, reset spring 13 and spring seat 14.Rubber membrane 6 is loaded in housing 5 inner chambers, and housing 5 inner chambers are divided into isolated up and down epicoele and cavity of resorption.The hypomere of water service pipe 3 inserts in the water, epimere is contained on the lower end of housing 5, the endoporus of water service pipe 3 communicates with housing 5 cavity of resorptions, and the space of going up between the water surface in the cavity of resorption of housing 5 and the water service pipe 3 retains portion of air, and the air pressure of this a part of air is experienced in the lower end surface of rubber membrane 6.One end of conducting plate 7 is contained on the housing 5, and movable contact 10 is arranged on the other end end.Transmission shell fragment 8 is an one with conducting plate 7, and an end of transmission shell fragment 8 is connected with the fixed end of conducting plate 7, and the other end end can be movable.Stationary contact 9 is contained in the housing 5, and the movable contact 10 of conducting plate 7 contacted with stationary contact 9 when water level was low at ordinary times.Quick-action spring 11 is contained between the end of the end of transmission shell fragment 8 and conducting plate 7.Push rod 12 is in the middle part of the upper-end surface of rubber membrane 6 and between the lower end surface of transmission shell fragment 8.Spring seat 14 is contained on the upper-end surface of transmission shell fragment 8, and reset spring 13 is contained between the lower end surface on spring seat 14 and housing 5 tops.

Claims (1)

1, piston type domestic water pump automatic controller comprises pump switch (1), water service pipe (3) and water pump (4), it is characterized in that also comprising controller (2); The movable contact (10) of controller (2) and stationary contact (9) are connected into series circuit with water pump (4), are connected with 220 volts of ac power supplys; Controller (2) comprises housing (5), rubber membrane (6), conducting plate (7), transmission shell fragment (8), movable contact (10), stationary contact (9), quick-action spring (11), push rod (12), reset spring (13) and spring seat (14); Rubber membrane (6) is loaded in housing (5) inner chamber, and housing (5) inner chamber is divided into isolated up and down epicoele and cavity of resorption; The hypomere of water service pipe (3) inserts in the water, epimere is contained on the lower end of housing (5), the endoporus of water service pipe (3) communicates with housing (5) cavity of resorption, the space of going up between the water surface in the cavity of resorption of housing (5) and the water service pipe (3) retains portion of air, and the air pressure of this a part of air is experienced in the lower end surface of rubber membrane (6); One end of conducting plate (7) is contained on the housing (5), and movable contact (10) is arranged on the other end end; Transmission shell fragment (8) is an one with conducting plate (7), and an end of transmission shell fragment (8) is connected with the fixed end of conducting plate (7), and the other end end can be movable; Stationary contact (9) is contained in housing (5) epicoele, and the movable contact (10) of conducting plate (7) contacted with stationary contact (9) when water level was low; Quick-action spring (11) is contained between the end of the end of transmission shell fragment (8) and conducting plate (7); Push rod (12) is positioned between the lower end surface of the upper-end surface middle part of rubber membrane (6) and transmission shell fragment (8); Spring seat (14) is contained on the upper-end surface of transmission shell fragment (8), and reset spring (13) is contained in the lower end surface on spring seat (14) and housing (5) top.

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