CN2302350Y

CN2302350Y - Hand absorbing pump

Info

Publication number: CN2302350Y
Application number: CN 97209104
Authority: CN
Inventors: 曾明辉
Original assignee: ZHONGSHAN INDUSTRIAL AND TRADE Ltd JIEXI COUNTY
Current assignee: ZHONGSHAN INDUSTRIAL AND TRADE Ltd JIEXI COUNTY
Priority date: 1997-05-05
Filing date: 1997-05-05
Publication date: 1998-12-30
Anticipated expiration: 2007-05-05

Abstract

The utility model relates to an underground manual water drawing device, which is composed of a pump base (12), a pump body (9), a pump cover (3), a crank handle (8), a piston assembly and a water inlet sealing (10). The piston assembly is composed of a piston upper frame (4), a rubber piston (7), a piston supporting frame (8) and a water sealing (5). Engineering plastic molding is injected to be formed in one piece in the piston supporting frame made of rubber material, the end surface is provided with a convex ring (14), a washer (11) and the water inlet sealing are combined into a whole, so the utility model has the advantages of metal material saving, low cost, convenient maintenance, good sealing performance, high work efficiency, etc.

Description

Hand pulsating pump

The utility model relates to a kind of underground craft apparatus that draws water.

Hand pulsating pump of the prior art, because unreasonable structure generally adopts metallic piston assembly and metal water seal accessory, so there is following shortcoming: the iron castings piston seat easily gets rusty, easily damaged partss such as rubber piston are changed inconvenient; Though the aluminum casting piston seat overcomes problem of rustiness, the cost of production height; Metal water seal leakiness gas and influence usability etc.

The purpose of this utility model is to overcome the shortcoming that existing hand pulsating pump exists, provide a kind of rational in infrastructure, that easily damaged parts is changed is convenient, production technology is simple, cost is low, the hand pulsating pump of high working efficiency, long service life.

The utility model, by pump seat, the pump housing, pump cover, handle, piston assembly and water inlet water seal are formed, pump cover is bowl-type, one lock screw is arranged on its limit, pump cover can be locked on the pump housing, also has a supporting base on the pump cover, handle is bearing on this seat, it is "T"-shaped that the pump housing is, its first half is as reservoir, and have the tubulose water outlet in the one side, the pump housing is installed on the pump seat by packing ring, one inlet valve and a water inlet water seal corresponding with it are arranged on pump seat, piston assembly is by connecting rod, piston is put on the shelf, rubber piston, piston carriage and water seal are formed, connecting rod and handle are hinged, piston is put on the shelf and is made for metallic material, the upper end connects connecting rod, it is characterized by: the piston carriage moulds the material cavity for " protruding ", and put on the shelf the internal thread of bottom of the outside thread on its top and piston matches, rubber piston is locked in wherein, piston carriage center upper portion has a circular water inlet, and there is " T " cone rubber water seal that cooperates with its activity at the place, water inlet, in the lower chamber of piston carriage, 2～4 equally distributed torsion muscle are arranged, the effect of torsion muscle is when supplying the mounting or dismounting repair, to block instrument, can be twisted.Handle top is half arc, can not take up space vertically near the pump housing, is convenient to transportation, and the handle bottom is oblate cylindricality handle.

The utility model, its packing ring and " T " taper water seal can be made into the rubber part of disjunctor, and its outer ring is as the be connected packing ring of pump seat with the pump housing, and the intermediate portion is as the water inlet water seal.

The utility model on the upper end of its piston carriage, can be established a prominent ring, and its effect is to improve its sand control capability and sealability.

The utility model, because the piston carriage is processed by plastic materials, packing ring and the design of water inlet water seal disjunctor are so have following good effect: (1) saving metallic material; (2) processing technology is simple, and cost is low; It is convenient to install and remove when (3) changing rubber piston, for ease of maintenaince; (4) the prominent ring design of piston carriage end face, sand control capability is good, good seal performance, high working efficiency; The design of (5) half arc handles is beneficial to accumulating.

Following embodiment is described further in conjunction with the accompanying drawings:

Fig. 1 is a structural drawing of the present utility model, and Fig. 2 and Fig. 3 are the plan view and the worm's eye view of plastic piston carriage, and Fig. 4 and Fig. 5 are the packing ring of disjunctor and the structural drawing of water inlet water seal, and wherein Fig. 5 is the A-A sectional view.

Among the figure, (1) connecting rod, (2) supporting base, (3) pump cover, (4) piston is put on the shelf, (5) " T " cone rubber water seal, (6) piston carriage, (7) rubber piston, (8) handle, (9) pump housing, (10) water inlet water seal, (11) packing ring, (12) pump seat, (13) torsion muscle, (14) prominent ring.

Present embodiment, water seal 5, piston 7 are made by rubber material; Piston carriage 6 is annotated once-through torsion muscle (13) for the engineering plastics mold pressing and is got 3; Water inlet water seal 10 and packing ring 11 disjunctors designs (with reference to accompanying drawing 4, Fig. 5), rubber material is made, and connecting rod 1 is the metal bar workpiece, and remaining parts is assembled each component with link for the processing of iron casting rear surface again.

Claims

1, a kind of hand pulsating pump, by pump seat (12), the pump housing (9), pump cover (3), handle (8), piston assembly and water inlet water seal (10) are formed, pump cover is bowl-type, one lock screw is arranged on its limit, pump cover can be locked on the pump housing, also has a supporting base (2) on the pump cover, handle is bearing on this seat, it is "T"-shaped that the pump housing is, its first half is as reservoir, and have the tubulose water outlet in the one side, the pump housing is installed on the pump seat by packing ring (11), one inlet valve is arranged on the pump seat, water inlet water seal (10) and its movable cooperation, piston assembly is by connecting rod (1), piston put on the shelf (4), rubber piston (7), piston carriage (6) and water seal (5) are formed, connecting rod and handle are hinged, piston is put on the shelf and is made for metallic material, the upper end connects connecting rod, it is characterized by: the piston carriage is that one " protruding " moulded the material cavity, and put on the shelf the internal thread of bottom of the outside thread on its top and piston matches, and rubber piston is locked in wherein, piston carriage center upper portion has a circular water inlet, there is " T " cone rubber water seal (5) that cooperates with its activity at the place, water inlet, in the lower chamber of piston carriage, 2～4 equally distributed torsion muscle (13) is arranged; Handle top is half arc, and the bottom is oblate cylindricality handle, and handle can be vertically near the pump housing.

2, hand pulsating pump according to claim 1 is characterized by: described packing ring (11) is " returning " shape packing ring of band " T " cone rubber water seal.Its outer ring is as the be connected packing ring of pump seat with the pump housing, and the intermediate portion is as the water seal (10) of inlet valve.

3, hand pulsating pump according to claim 1 is characterized by: there is a prominent ring (14) at the upper end place of described piston carriage (6).