CN2264814Y

CN2264814Y - Hand reciprocating self-sucking pump

Info

Publication number: CN2264814Y
Application number: CN 96227014
Authority: CN
Inventors: 王秀贵
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-01-08
Filing date: 1996-01-08
Publication date: 1997-10-15
Anticipated expiration: 2006-01-08

Abstract

The utility model relates to a manual reciprocating self-suction pump which comprises a pump body, an operating press rod and a drive mechanism, wherein a water inlet pipe, a water outlet pipe and a piston which moves horizontally to and fro are connected with the drive mechanism, and a water inlet cavity and a water outlet cavity which are mutually isolated are arranged under the piston. Both ends of the water outlet cavity and an opening of the water inlet pipe are provided with three one-way valves, and both ends of the water outlet cavity and an opening of the water outlet pipe are provided with three one-way valves. The piston of the pump moves to and fro to fully suck water. The utility model has the advantages of big flow quantity, high work efficiency and convenient movement. The utility model does not need the irrigation of guide water and is suitable for field irrigation.

Description

Manually reciprocal self-priming pump

The utility model relates to farm machinery, especially for the irrigation pump of manual water lift.

Traditional manual lift pump structure is: there is turnover water pipe pump housing upper end for the operation depression bar, the upright single cylinder piston, rely on suction that piston upwards promotes with underground water extract out, when the descent of piston, closed check valve, the water that is squeezed is scurried out from the piston periphery.Need water, and the water lift amount is little, inefficiency.Generally be applicable to and extract domestic water in the Farm House.And in agricultural irrigation, the plot disperses, and the water source amount is little, need often move lift pump, and this is that existing manual lift pump is difficult for realizing.

The purpose of this utility model is to provide a kind of reciprocating motion of the pistons all to absorb water, and flow is bigger, does not need water, moves easily manually irrigation by pumping pump.

Technical solution of the present utility model is: manually reciprocal self-priming pump comprises the pump housing, operation depression bar and driving mechanism, intake pipe, outlet pipe; The piston of horizontal reciprocating movement links to each other with driving mechanism, is isolated water-inlet cavity, water chamber below piston, and pump housing end caps piston-cylinder communicates with water-inlet cavity, water chamber.The two ends of water-inlet cavity and water inlet pipe mouth place establish three one-way valves, establish three one-way valves at the two ends and the effluent pipe mouth place of water chamber.Driving mechanism is: the axis hole with the shift fork location is arranged at pump housing top, fixedlys connected with shift fork in operation depression bar bottom, and continuous motion stem one end and shift fork are hinged, and an end is connected with piston rod.

According to technique scheme, the manually-operable depression bar drives the shift fork swing, and the push-and-pull connecting rod moves back and forth, and makes piston produce to-and-fro motion.When moving behind the piston, the cylinder sleeve front end forms negative pressure, and this brings out water one-way valve and closes, and the water inlet one-way valve is opened, the air in the sucking-off intake pipe; Simultaneously, the water inlet closed check valve of rear end goes out water one-way valve and opens, from the water outlet exhausting air.Otherwise piston moves ahead (backhaul), and the water inlet closed check valve of front end goes out water one-way valve and opens, and the water inlet one-way valve of rear end is opened, the water outlet closed check valve, and air is discharged from water outlet.Repeat above action, negative pressure is gradually big in the pump housing, and water is sucked in the pump housing, finishes exhaust self-priming process, enters the state that normally draws water.When piston moved to former and later two stops, the one-way valve at effluent pipe mouth place can prevent that the water of outlet pipe from refluxing, and alleviates pistons work pressure; The one-way valve of water inlet is used to prevent that the water in the water-inlet cavity refluxes in the pump housing.This pump does not need fixed support, moves conveniently, and reciprocating motion of the pistons all absorbs water, flow is big, efficient is high; The automatic vent diversion does not need water.

Accompanying drawing 1 is a schematic representation of the present utility model;

Accompanying drawing 2 is for opening pump housing plan view behind the front cover;

Accompanying drawing 3 is the unfolded drawing of overlooking of Fig. 2;

Accompanying drawing 4 is a piston schematic representation of the present utility model;

Accompanying drawing 5 is an operation depression bar schematic representation of the present utility model.

In conjunction with the accompanying drawings, embodiment of the present utility model is done a description:

Manually reciprocal self-priming pump comprises that the piston 8 of the pump housing 3, operation depression bar 1 and driving mechanism, intake pipe 4, outlet pipe 7, horizontal reciprocating movement links to each other with driving mechanism, is isolated water-inlet cavity 10, water chamber 9 below piston 8; Piston 8, water-inlet cavity 10, water chamber 9 communicate with two end cap 6 inner chambers.Two ends and 4 mouthfuls of places of intake pipe at water-inlet cavity 10 establish one-way valve 12,14,13, are provided with one-way valve 11,15,16 at two ends and 7 mouthfuls of places of outlet pipe of water chamber 9, and water-inlet cavity 10 transverse section are rectangle, and water chamber 9 inner chamber transverse section are rectangle, and the outlet port is circular; One-way valve is the rubber plate with the sealing gasket disjunctor, one-way valve 14 and 15 and front cover 6 sealing gasket one, one-way valve 11,12 and rear end cover sealing gasket one.Driving mechanism is: the rack shaft hole with shift fork 2 location is arranged at the pump housing 3 tops, fixedlys connected with shift fork 2 in operation depression bar 1 bottom, and continuous motion stem 5 one ends and shift fork are hinged, and an end is connected with piston rod 17.The both ends of the surface 18 of piston 8 are rubber cup, and when an end of piston 8 is in the work done state, this end leather cup is subjected to hydraulic action, and end face 18 expands and cooperates closely with inboard wall of cylinder liner, otherwise ought be in non-work done state, leather cup pressurized minimizing and shrink the frictional force minimizing.Operation depression bar 1 is two, has angle of cut adjustment hole 19 on the fan-shaped encounter plane of two operation depression bars 1, can regulate operation depression bar 1 height by this hole, is fit to people's operation of different heights.Outlet pipe has energy storage bag (buffering is regulated bag) near a section of the pump housing 3, and when water-outlet quantity moment was excessive, this energy storage bag played buffer function, alleviates excessive working pressure of moment, simultaneously, and the pulse of can regulate current.Inner surface of cylinder liner is imitated the porcelain surface treatment, and to improve the smooth degree and the surface hardness of working surface, the power of reducing friction increases the service life.

Claims

1, manually reciprocal self-priming pump, comprise the pump housing, operation depression bar and driving mechanism, intake pipe, outlet pipe, it is characterized in that: the piston of horizontal reciprocating movement (8) links to each other with driving mechanism, is isolated water-inlet cavity (10), water chamber (9) in the below of piston (8); Establish one-way valve (12), (14) at the two ends of water-inlet cavity (10), be provided with one-way valve (11), (15) at the two ends of water chamber (9).

2, manually reciprocal self-priming pump according to claim 1, it is characterized in that described driving mechanism is: the rack shaft hole with shift fork (2) location is arranged at the pump housing (3) top, fixedly connected with shift fork (2) in operation depression bar (1) bottom, continuous motion stem (5) one ends and shift fork (2) are hinged, and an end is connected with piston rod (17).

3, manually reciprocal self-priming pump according to claim 1 is characterized in that the both ends of the surface (18) of piston (8) are rubber cup.

4, manually reciprocal self-priming pump according to claim 1, it is characterized in that operating depression bar (1) is two, has angle of cut adjustment hole (19) on the fan-shaped encounter plane of two operation depression bars (1).

5, manually reciprocal self-priming pump according to claim 1 is characterized in that a section of the outlet pipe 7 close pump housings (3) has energy storage bag (buffering is regulated bag).