High-efficiency water delivery multi-stage fire pump

Abstract

The invention belongs to the technical field of fire fighting equipment, and particularly relates to a high-efficiency water delivery multi-stage fire pump. The multi-stage fire pump comprises a supporting plate, a motor and connecting rings; a base is fixedly connected to the upper side of the supporting plate at the bottom; the motor is fixedly connected to the upper surface of the supporting plate at the top; one side, close to the motor, of the base is fixedly connected with the connecting rings; the plurality of connecting rings matched with the base are mutually combined with the top supporting plate to form a pressurizing cavity; a first cavity is formed in the base; a motor output shaft penetrates through the supporting plate, a shell and the base and extends into the first cavity;one end, located in the first cavity, of the motor output shaft is fixedly connected with a first cam; and a second cam is rotationally connected to one side, located on the first cam, of the first cavity. According to the high-efficiency water delivery multi-stage fire pump, the first cam and the second cam are driven to rotate at a constant speed through the rotation of the motor, so that a negative pressure is formed at an inlet of a water inlet pipe, an external water source is attracted by the negative pressure and enters the water inlet pipe so as to be introduced into the multi-stage fire pump to be sprayed out quickly through pressurizing.

Description

technical field [0001] The invention belongs to the technical field of fire-fighting equipment, in particular to a multi-stage fire-fighting pump for high-efficiency water delivery. Background technique [0002] As the name suggests, the fire pump is a pump used in fire protection. The fire pump is an imported product. It is divided into different types according to different classification methods. It is widely used in environmental protection, water treatment, fire protection, etc. due to its fully sealed, leak-free, and corrosion-resistant characteristics. Partially used to pump all kinds of liquids, it is an ideal pump and fire protection system for building non-leakage, non-pollution civilized workshops and civilized factories. The multi-stage fire pump adopts special hydraulic design and structural design, so that it has flow and pressure classification. Compared with ordinary centrifugal clean water pumps, it is more suitable for building fire water supply systems. Th...

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Problems solved by technology

[0004] In order to make up for the deficiencies of the existing technology and solve the problem that the design structure of the multi-stage fire pump in the prior art is relatively complicated, which is not conducive to flexible use, and at the same time, the water diversion link of the existing multi-stage fire pump is relatively complicated and the efficiency is not fast enough. A multi-stage fire pump for high-efficiency water delivery

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