CN2833169Y

CN2833169Y - Readily dismantled improved dual-diaphragm pump

Info

Publication number: CN2833169Y
Application number: CN 200520014256
Authority: CN
Inventors: 施显照
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-08-20
Filing date: 2005-08-20
Publication date: 2006-11-01
Anticipated expiration: 2015-08-20

Abstract

The utility model relates to a quick detachable improved dual-diaphragm pump, which is designed aiming the unreasonable structure design of the existing paint pump. The utility model has the design proposal that the pump is composed of a pump body, a main shaft, a left side cover, a right side cover, a seat for balls A and B, steel balls, ball plugs, and a reversal valve, wherein the pump body is provided with the reversal valve, the main shaft arranged in the pump body is symmetrically provided with O-shaped rings, main shaft tightening sleeves, blocks, diaphragms, tightening pieces, spring shims, nuts, and the side covers which are symmetrically provided with O-shaped rings A and B, balls A and B, the steel balls, the ball plugs, and O-shaped loops. The center parts of the pump body and the main shaft are through holes in which a round bar is inserted and is positioned slightly. A nut which is connected with the main shaft is detached. When diaphragms which are one of main wearing parts are replaced, the diaphragms and side covers can be detached as the nuts for fixing the diaphragms and screws of the side covers are detached. The components and parts of the utility model are symmetrically arranged. Therefore, the utility model has simple structure, can be easily produced in bulk, can be assembled in kits, and meanwhile, solves the technical problems of large maintenance load and inconvenient maintenance.

Description

Quick detachable improved type two diaphragm pump

Technical field

The utility model relates to the decoration apparatus field, is a kind of quick detachable improved type two diaphragm pump that is applicable to spray paint.

Background technique

At present, known paint pump has the two diaphragm pump body, and this pump housing is by the pump housing, two side covers, and five parts of upper and lower connector assemble, and maintenance load is big, maintenance owes convenient.Coating is to suct from lower connector during work, through two side covers, is pressed to side cover again, provides spraying equipment to use.Main body is decreased the diaphragm of one of part and is changed, and needs to go up that two nuts all unload and could change on 12 screws, main shaft of four screws of connector and two side covers.Patent documentation discloses the ZL patent No. 99127161.0, denomination of invention is " a kind of single diaphragm pneumatic cut-off valve ", this valve comprises valve gap, valve body, spool, between valve gap and the valve body upper diaphragm is housed, the round iron plate, flange on the spool, they are affixed with screw, the upper diaphragm centre bit is equipped with a support plate, support plate center and center spool join, upper diaphragm and spool top constitute air chamber, the spool bottom is tapered, and tapered portion is with the urceolus that elastic material is made, and is used for the sealing of fluid inlet and outlet, the longitudinal plane of described upper diaphragm is " mountain " font, and both sides and horizontal sextant angle α are 10 °＜α＜85 ° in " mountain " font.Advantage: spool has functions such as barrier film, spring, diaphragm, only needs less external force just can open or close this valve.This its structure and purposes do not belong to the utility model field.

Summary of the invention

The purpose of this utility model provides a kind of quick detachable improved type two diaphragm pump, makes it can solve the big and maintenance of like product maintenance load and owes technical problem easily.The purpose of this utility model realizes by the following technical solutions.

A kind of quick detachable improved type two diaphragm pump, this pump is mainly by the pump housing, main shaft, left and right side cover, ball seat, steel ball, bulb stopper, selector valve constitute, it is characterized in that being that the pump housing 1 is equipped with selector valve 20, be provided with main shaft 2 in the pump housing 1, O shape circle 3, main shaft packing cover 4, block 5, diaphragm 6-0, clamping plate 6-1, O shape circle 7, block 8, compression spring 9, nut 10, the side cover 11 of symmetry is housed on the main shaft; Side cover 11 is equipped with O shape A circle 12, the O shape B circle 18 of symmetry, ball Building A 13, ball Building B 17, steel ball 14, bulb stopper 15, O shape ring 16; In the center portion of the pump housing 1 and main shaft 2 are through hole (seeing Fig. 2 arrow indication position), and pole inserts this through hole fixed main shaft, sheds the nut 10 that main shaft connects, and can unload, change diaphragm.

The side cover 11 of described quick detachable improved type two diaphragm pump is the structure of independent, is connected with the pump housing 1 by screw 19.As the need maintenance, only need to back out six screws 19 that need the maintenance side cover with inner hexagon spanner; As ball Building A, ball Building B, steel ball or bulb stopper need be changed, and only need that part ofly to back out bulb stopper 15 with inner hexagon spanner and get final product what needs were changed.

The utility model is simple in structure, and mainly by the pump housing, left and right side cover, three parts are formed, and inside is mainly by main shaft, and ball seat, steel ball, bulb stopper constitute.Coating is to suct from the pump housing during work, through two side covers, is pressed to above the pump housing again, provides spraying equipment to use.The main diaphragm that decreases one of part is changed, and only the pole of 6mm need be inserted the center hole of the pump housing and main shaft, pulls down nut, pulls down the screw of side cover on one side again, just can implement the adjusting or the replacing of diaphragm.Because of part is symmetrical arranged, be easy to produce in batches, complete assembling has solved maintenance load simultaneously and has owed technical problem easily than big and maintenance.

Description of drawings

Fig. 1 is the utility model STRUCTURE DECOMPOSITION schematic representation (also claiming explosive view).

Fig. 2 is the utility model assembling schematic representation.

The sequence number of above accompanying drawing and title: 1, the pump housing, 2, main shaft, 3, O shape circle, 4, main shaft packing cover, 5, block, 6-0, diaphragm, 6-1, clamping plate, 7, O shape circle, 8, block, 9, compression spring, 10, nut, 11, side cover, 12, O shape A circle, 13, the ball Building A, 14, steel ball, 15, bulb stopper, 16, O shape ring, 17, the ball Building B, 18, O shape B circle, 19, screw, 20, selector valve, 21, packing ring, 22, briquetting.

Embodiment

The utility model mode of execution is the spraying that is used for coating, and the pump housing 1 is mounted on the support, and the coating joint is connected with suction pipe, Straw cap, Straw cap be connected with coating color tank (draw).The top of the pump housing 1 connects pressure-stored tank, table cover, pressure gauge, and the side connects three-way pipe, rapid pipe joint, pressure maintaining valve group, return tube.Air in pressure-stored tank reaches predetermined working pressure, pressurized air enters the selector valve 20 and the pump housing 1, make one of them diaphragm in the pump housing (refer to that the right side among Fig. 1, Fig. 2 looks to motion on one side, among the figure the same pump housing 1 and main shaft 2, symmetrical part, sequence number is omitted), just the diaphragm 6-0 on this limit outwards moves, diaphragm on one side inwardly moves, the action that side cover 11, ball Building A 13, ball Building B 17, steel ball 14 meetings this moment produce distinct program.Diaphragm 6-0 is one side of motion outwards, can not flow downward by air compression coating in this face side cover 11, therefore locates steel ball and 17 applyings of ball Building B; And steel ball 14 is washed open with ball Building A 13 by coating and is separated, and coating is force feed upwards then.Diaphragm another side (refer to the left side among Fig. 1, Fig. 2 look) the inside motion of diaphragm will be drawn the coating in this face side cover, and this moment, steel ball separated with ball Building B 17, and the coating in the coating color tank is sucted, and steel ball 14 fits tightly with ball Building A 13, and coating can not flowed downward.

The critical pressure that extremely surpasses this limit when diaphragm 6-0 pressurized air, main shaft packing cover 4 leaves main shaft 2, and (finger pressure is gone into the axial seal cover of the pump housing at the axle sleeve of axle head, which state of pressurized air from leaking here), gas in the diaphragm 6-0 will leak to selector valve 20 from main shaft packing cover 4, make selector valve 20 commutations, inlet hole by former setting becomes air outlet hole, the left and right motion that left and right two diaphragm will not stop, coating in the coating color tank will constantly be drawn to suction pipe, by three-way pipe, the coating joint is sprayed into required spraying place.

Diaphragm wearing and tearing when monolithic need only the center hole that φ 6mm pole is inserted the pump housing 1 and main shaft 2, and main shaft 2 is located a little, just pull down nut 10, pull down the fixedly screw 19 of side cover 11 again, promptly implement the adjusting or the replacing of diaphragm, so the utility model has just reached easily detachable purpose of design.

Claims

1, a kind of quick detachable improved type two diaphragm pump, this pump is mainly by the pump housing, main shaft, left and right side cover, ball seat, steel ball, bulb stopper, selector valve constitute, it is characterized in that the pump housing (1) is equipped with selector valve (20), be provided with main shaft (2) in the pump housing (1), O shape circle (3), main shaft packing cover (4), block (5), diaphragm (6-0), clamping plate (6-1), O shape circle (7), block (8), compression spring (9), nut (10), the side cover (11) of symmetry is housed on the main shaft; O shape A circle (12), O shape B that side cover (11) is equipped with symmetry enclose (18), ball Building A (13), ball Building B (17), steel ball (14), bulb stopper (15), O shape ring (16); Center portion at the pump housing (1) and main shaft (2) is a through hole, main shaft (1) attaching nut (10).

2, quick detachable improved type two diaphragm pump as claimed in claim 1 is characterized in that side cover (11) is the structure of independent, is connected with the pump housing (1) by screw (19).