CN2294339Y

CN2294339Y - Man power operation type water pump with low leakage

Info

Publication number: CN2294339Y
Application number: CN 96242677
Authority: CN
Inventors: 熊尚全
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-12-19
Filing date: 1996-12-19
Publication date: 1998-10-14
Anticipated expiration: 2006-12-19

Abstract

The utility model relates to a man power operation type water pump with low leakage, which is mainly composed of a barrel body (1), a piston frame (8), a leather cup (12), a draw rod (3), a crank (4), a one-way valve at the bottom of the barrel body, etc. When the piston frame is moved upwards, the leather cup is supported by a lower supporting disk (9) to move upwards together to make the inner part of a working cylinder (18) form negative pressure to suck groundwater. When the piston frame is moved downwards, the leather cup is tightly close to a backflow disk (10) to move downwards together, and the water in the working cylinder can flow into the upper part of the barrel body through a backflow hole (11) and be exhausted from an opening (7). Because the leather cup can slip automatically on the work, the peripheral abrasion of the leather cup is more homogeneous, the service life is long, and the sealing performance is good. The utility model is a simple water lifting device for town and country dwellers.

Description

Reduce the hand squeezer that leaks

The utility model belongs to water lift, be-kind of confession is civilian or agricultural, from the underground hand squeezer that draws water.

Less-developed town dweller and some rural areas, with manpower water lift groundwater abstraction as the life or irrigation water, be common tool wherein with the hand squeezer shown in the accompanying drawing 1, it is mainly by injecting one-way valve (5) on underground cylindrical shell (1), leather bucket (2), pull bar (3), crank (4) and the leather bucket and the one-way valve formations such as (6) bottom the cylindrical shell, make when carrying on the piston when pressing crank, in clutch release slave cylinder (18), form negative pressure, make piston one-way valve (5) close, the tube end one-way valve (6) open, underground water can enter in the cylinder (18); When piston moves down, close one-way valve (6), and make the water in the cylinder enter cylindrical shell top by one-way valve (5); After the several times piston up-down, the water that enters cylindrical shell top is reach a certain height, can flow out from the cylindrical shell side mouth (7) of basseting.But the leather bucket of this squeezer joins together with pull bar (3), when pressure-raising is broadcast, the curved motion of the articulating point of crank and pull bar, after the power transmission, be subjected to unbalance loading repeatedly in the lifting process of leather cup in cylindrical shell, long-time use back leather cup concentrated wear is serious, thereby causes the poorly sealed water lift function reduction that causes.And because of this structure long period of soaking in water, fastening piece is corrosion very easily, maintain and replace leather cup root inconvenience.

At the deficiency that above-mentioned existing squeezer exists, develop the modified model leather bucket that the stressed comparison of a kind of leather bucket is even, can reduce leather cup wearing and tearing, prolongation piston working life and assurance workmanship significantly, be design objective of the present utility model.

Major technique formation of the present utility model comprises cylindrical shell, piston, pull bar, crank and one-way valve etc., characteristics are to have the center can install and connect firmly the piston shelf of pull bar, the following pallet and the return tray that are arranged in parallel are arranged on the piston shelf, return tray some return ports are arranged in interior week, and have spacing between following pallet and the return tray, the leather cup of lower hollow can be contained among this spacing by floating bushing.

This improved leather bucket is when cylindrical shell moves upward, and the upper surface of following pallet can support leather cup bottom plane, and leather cup slippage centering automatically at the volley, the performance excellent sealing performance; When leather bucket moves downward, pull bar and piston shelf move down in advance, push the inner plane of leather cup then by the following perimembranous of return tray, and make water in the cylindrical shell clutch release slave cylinder, from the spacing of flowing through between pallet and the cylindrical shell perisporium down between two dishes of piston shelf, return port from return tray flows to cylindrical shell top again, finally flows out from the cylindrical shell side mouth.Because in piston shelf moves up and down process, leather cup is float motion and energy automatic centering in piston shelf, the offset loading force that pull bar transmits does not at the volley act directly on the leather cup, thereby leather cup is more even in the wearing and tearing of cylinder inboard wall, can after working long hours, still can keep excellent sealing performance, and in this structure, the maintenance of leather cup, replacing only need get final product by direct suit in piston shelf, seem very convenient.

Below in conjunction with diagram in detail embodiment is described in detail.

Fig. 2 is the utility model structural representation.

Mainly form from the visible the utility model of Fig. 2 by the cylindrical shell (1) of being with side mouth (7), piston, pull bar (3), crank (4), one-way valve etc., the following pallet (9) and the return tray (10) that are arranged in parallel are wherein arranged on the piston shelf (8), return tray return port (11) arranged in interior week, between following pallet and the return tray spacing is arranged, the leather cup of hollow (12) can be contained among the spacing by floating bushing, and the piston shelf center can install and connect firmly pull bar (3) with fastening screw nut.

The hinge type one-way valve (6) of existing hand squeezer cylindrical shell bottom, also there is a problem of leaking easily, especially when squeezer quits work, surplus water in the clutch release slave cylinder (18) will flow out from valve (6), often need pour water and can start to clutch release slave cylinder when reworking.The utility model can be as shown in Figure 2, be provided with the foot valve seat (13) that rubber-plastics material is made in cylindrical shell (1) bottom, the center of seat (13) is provided with cone shape hole (14) and flange (15), and places ball (16) in cone shape hole (14) lining, goes up at flange (15) and inserts connection lateral pin (17).When piston drew water, the underground water pearl of can kicking off in advance in the cone shape hole entered in the clutch release slave cylinder (18), lateral pin (17) is set can limits the ball the sphere of activities, and prevent that ball from deviating from from cone shape hole.When piston pressed down, ball can ride in the cone shape hole preferably, produced good sealing effect.

Claims

1. reducing the hand squeezer that leaks mainly is made of cylindrical shell (1), piston, pull bar (3), crank (4), the one-way valve of band side mouth (7), it is characterized in that having the center can install and connect firmly the piston shelf (8) of pull bar (3), the following pallet (9) and the return tray (10) that are arranged in parallel are arranged on the frame (8), return tray return port (11) arranged in interior week, and between dish (9) and the dish (10) spacing is arranged, the leather cup of hollow (12) can be contained among this spacing by floating bushing.

2. the hand squeezer that minimizing according to claim 1 is leaked, the one-way valve that it is characterized in that cylindrical shell (1) bottom are had in cone shape hole (14) and flange (15), hole (14) by the foot valve seat (13) that is arranged on the cylindrical shell bottom, present (13) center has ball (16), flange (15) to go up the slotting lateral pin (17) that is associated with.