CN201582205U

CN201582205U - Water pump

Info

Publication number: CN201582205U
Application number: CN2009202021844U
Authority: CN
Inventors: 孙良厚
Original assignee: NINGBO YIERKA SEALS CO Ltd
Current assignee: NINGBO YIERKA SEALS CO Ltd
Priority date: 2009-12-10
Filing date: 2009-12-10
Publication date: 2010-09-15
Anticipated expiration: 2019-12-10

Abstract

The utility model relates to a water pump which comprises a motor (1), a rotating shaft, and a pump body; the motor (1) is connected with the pump body; the water pump is characterized in that the shell of the pump body is the sandwich structure of a TPU outer layer (3.1), a metal medium layer (3.2) and a TPU inner layer (3.3). The water pump has anti-freezing effect when being used under low temperature environment and the pump body can not be cracked by frosting due to the icing of water inside the cavity thereof.

Description

Water pump

Technical field:

The utility model relates to a kind of water pump.

Background technique:

China region is wide, and the north and south span is bigger, and the weather difference in distribution is very obvious.Northeast and the Northwest, winter, temperature minimumly reached subzero 45 degrees centigrade.Enter winter, fire-fighting truck, factory, Sewage Disposal, water utility, agricultural are used, the water pump of home-use water pump is antifreeze is a great problem.In water pump, be full of water at ordinary times, particularly long-time field work, as water not being discharged, pump body is easy to by bursting by freezing.This will bring the loss that can't retrieve, particularly to the fire department rescue work of extinguishing fire, the fire-fighting truck that carries full extinguishing agent in fire fighting midway, if fire water pump by bursting by freezing, that whole fire-fighting truck will lose the effect that it should be brought into play.Service water district, Sewage Disposal, water utility, agricultural water pump are to avoid the water pump bursting by freezing all to take certain antifreezing measure, and as electric heating measure etc., these measures of adding have increased energy consumption and user cost.

The model utility content:

The utility model provides a kind of water pump that need not the measure of adding can solve pump housing bursting by freezing problem at above problem.

The utility model addresses the above problem used technological scheme: water pump comprises: the pump housing, motor, rotating shaft, motor is connected with the pump housing, it is characterized in that: described pump housing shell is the sandwich structure of TPU skin-metal intermediate layer-TPU internal layer.

After adopting above sandwich structure, the utility model compared with prior art, because pump housing shell is the sandwich structure of TPU skin, metal intermediate layer, TPU internal layer, TPU wherein is flexible engineering plastics, lower temperature resistance-70 ℃, therefore the sandwich structure of forming has good toughness combination, and the phenomenon that pump housing bursting by freezing can not appear in the utility model possesses antifreeze effect, is adapted at that temperature is low, use in the area of height above sea level.

Description of drawings:

Accompanying drawing 1 is the utility model form structure schematic representation.

Accompanying drawing 2 is the utility model A-A schematic representation.

As shown in the figure: 1, motor, 2, rotating shaft, 3, the pump housing, 3.1, the TPU skin, 3.2, metal intermediate layer, 3.3TPU internal layer.

Embodiment:

Below in conjunction with specific embodiment, the utility model is described further, but the utility model allows other variation:

As Fig. 1, a kind of water pump shown in Figure 2, comprise motor 1, rotating shaft 2, the pump housing 3, TPU skin 3.1, metal intermediate layer 3.2, TPU internal layer 3.3, motor 1 is connected with the pump housing 3, the rotating shaft 2 of motor 1 is connected with impeller in the pump housing 3 chambeies, and the pump housing 3 shells are the sandwich structure of TPU skin 3.1, metal intermediate layer 3.2, TPU internal layer 3.3.When under low temperature environment, using, even the endoceliac water of pump is frozen into ice, because pump housing shell is the sandwich structure of TPU skin, metal intermediate layer, TPU internal layer, has good toughness, make the pump housing unlikely by bursting by freezing, behind the endoceliac ice of cleaning pump, machine can continue proper functioning.

Claims

1. water pump, it comprises: motor (1), rotating shaft (2), the pump housing (3), motor (1) is connected with the pump housing (3), it is characterized in that: the shell of the described pump housing (3) is the sandwich structure of TPU skin, metal intermediate layer, TPU internal layer.