CN2307950Y

CN2307950Y - Exhaust and sealing device for water pump

Info

Publication number: CN2307950Y
Application number: CN 97224377
Authority: CN
Inventors: 李等全; 李克芹
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-08-18
Filing date: 1997-08-18
Publication date: 1999-02-17
Anticipated expiration: 2007-08-18

Abstract

The utility model provides an exhaust and sealing device for water pumps, relating to the field of mechanical engineering. The central position of the upper end of a pump body (3) is provided with an exhaust cylinder (5); the central position of the lower end in the exhaust cylinder is provided with a sealing exhaust valve (4) which is matched with the opening (10) of the end; the upper part is provided with a piston (6) which is connected with the lower end of a hanger rod (8) whose upper end is vertically connected with a pressure rod (9) which is vertically connected with the upper end of a supporting frame (7); the lower part is connected to the exhaust cylinder (5); the inner part of the opening (2) of a water outlet pipe arranged on the upper part of one side of the pump body (3) is provided with a one-way valve. The utility model has the advantages of reasonable design, compact structure, easy production, convenient operation, good exhausting and sealing performance and high work efficiency.

Description

A kind of water pump exhaust sealing device

The utility model relates to mechanical engineering field, relates to a kind of water pump exhaust sealing device particularly.

At present, the centrifugal serial water pump of market sale, especially the water pump used of field irrigation, though have simple in structure, efficient advantages of higher, but there is following shortcoming simultaneously: the one, the user must first water exhaust when using it to draw water, its troublesome poeration, required staff is many and labor intensity is big, time-consuming; The 2nd, its poor sealing performance is started shooting after the shutdown again and is still needed water exhaust, wasting manpower and material resources.This pump can not satisfy the needs that people produce.

The purpose of this utility model provides a kind of water pump exhaust sealing device, its exhaust diversion effectively, good seal performance, and saving of labor in the time of saving again reduces labor intensity, and satisfies people's production demand.

The purpose of this utility model is achieved in that and is provided with exhaust casing 5 that on the central position of the pump housing 3 upper ends the central position, underpart in it is provided with and seals the perforate 10 that outlet valve 4 matches; The top of its exhaust sealing valve 4 is provided with piston 6 and is connected with the lower end of suspension rod 8, its upper end and 9 vertical connections of depression bar, and depression bar 9 is connected on the exhaust casing 5 with vertical connection of support 7 upper end portions, its underpart; In the effluent pipe mouth 2 above the pump housing 3 one sides, be provided with one-way valve 1.

The inner chamber of the inner chamber of its exhaust casing 5 and the pump housing 3 is connected by the perforate 10 of exhaust casing 5 underparts.

The utility model is provided with the structural design of one-way valve above it owing to adopt to be provided with exhaust casing on central position above the pump housing in the effluent pipe mouth of a side, so that it has is reasonable in design, simple and compact for structure, easy to manufacture, easy to operate, simultaneously because its exhaust sealing performance is good, do not need the exhaust of pouring water, so it has exhaust diversion, good seal performance, high working efficiency, saving of labor during joint, labor intensity is little, can satisfy people's production demand; Its market potential is big, is easy to popularize.

Concrete structure of the present utility model is provided by following embodiment and accompanying drawing.

Fig. 1 is the structural front view according to a kind of water pump exhaust sealing device that the utility model proposes.

Fig. 2 is that the A of Fig. 1 is to view.

Describe details and working condition in detail below in conjunction with accompanying drawing 1, Fig. 2 according to the water pump exhaust sealing device that the utility model proposes.

This device is included in the exhaust casing 5 on the pump housing 3 top position of center line, and the perforate 10 in it on central position, lower end matches with sealing outlet valve 4, and seal and opening 10; Sealing outlet valve 4 tops are provided with piston 6, and the lower end of suspension rod 8 is attached thereto and connects, its upper end and 9 vertical connections of depression bar, in the middle part of it be connected exhaust casing 5 on vertical connection of support 7 upper ends; In the effluent pipe mouth 2 of a side, be provided with one-way valve 1 above the pump housing 3, it is semi-open state, is the state of shutting at ordinary times, and it opens (not drawing among the figure) automatically entirely during water outlet.Its working procedure is summarized as follows: when using it to draw water, the water pump 3 of this device will be installed earlier move the scene, source of drawing water to active force diesel engine (or motor), water pipe etc., be separately fixed on the carriage, Water-pump belt wheel and active force diesel engine belt wheel (or motor) have been proofreaied and correct, load onto belt, inlet tube and outlet tube is fastened on respectively on the water-in and water-out mouth of pipe 2 of water pump, and intake pipe is put into the water source, and this moment, effluent pipe mouth 2 interior one-way valves 1 were in full closeding state (not drawing among the figure).Rear driving depression bar 9, suspension rod 8, piston 6 are moved up and down in exhaust casing 5, sealing outlet valve 4 of underpart is opened automatically in it, and (illustrating that water pump is far away apart from water source 10-12 rice) drives depression bar 9,2-3 minute, air in pump chamber and the pipeline drains, water enters the pump inner chamber automatically, starts diesel engine simultaneously immediately, and the one-way valve 1 in the effluent pipe mouth 2 is opened automatically entirely, sealing outlet valve 4 sealing perforate 10 automatically in the exhaust casing 5, effluent pipe mouth 2 beginning water outlet irrigated farmlands.When shutting down, the one-way valve 1 in the effluent pipe mouth 2 is totally-enclosed automatically.Be separated by 4-8 hour, and started diesel engine (or motor) once more when drawing water, effluent pipe mouth 2 water outlet does not immediately need the secondary exhaust, promptly finishes a working procedure this moment.This is easy and simple to handle, and labor intensity is little, and saving of work and time is a kind of comparatively desirable field irrigation facility.

Claims

1, a kind of water pump exhaust sealing device that contains the pump housing, the water-in and water-out mouth of pipe, it is characterized in that being provided with on the position of center line of the pump housing (3) upper end portion exhaust casing (5), the central position of its interior underpart is provided with and seals the perforate (10) that outlet valve (4) matches; Its top is provided with piston (6) and is connected with suspension rod (8) lower end, its upper end and vertical connection of depression bar (9), and depression bar (9) is connected on the exhaust casing (5) with support (7) the vertical connection of upper end portion, its underpart; In the effluent pipe mouth (2) of the pump housing (3) one sides top, be provided with one-way valve (1).

2, according to the described water pump exhaust sealing device of claim 1, it is characterized in that the inner chamber of its exhaust casing (5) and the inner chamber of the pump housing (3), the perforate (10) by exhaust casing (5) underpart is connected.