CN106640574A - Oil-water mixing blocking mechanism of small-sized electric cleaning machine - Google Patents

Abstract

Provided is an oil-water mixing blocking mechanism of a small-sized electric cleaning machine. According to the oil-water mixing blocking mechanism, a connection base is arranged at the front end of an electric motor; a pump body is arranged at the front end of the connection base; a pump head is arranged at the front end of the pump body; an output shaft of the electric motor is connected with a tilting tray which is provided with a surface bearing; a plunger hole is formed in the pump body, a plunger is arranged in the plunger hole, and one end of the plunger makes contact with the surface bearing on the tilting tray; and a water inlet, a water outlet and a containing cavity are formed in the pump head, the water inlet is connected with a water inlet one-way valve, and the water outlet is connected with a water outlet one-way valve. The oil-water mixing blocking mechanism is characterized in that an oil seal mounting groove, a spacer bushing groove and an intermediate sleeve groove are formed in the portion, on the other side of the plunger, of the pump body; an oil seal is arranged in the oil seal mounting groove, a spacer bushing is arranged in the spacer bushing groove, and an intermediate sleeve is arranged in the intermediate sleeve groove; an auxiliary water seal groove is formed in the inner wall of the intermediate sleeve and internally provided with an auxiliary water seal; an inner annular groove and an outer annular groove are formed in one side of the intermediate sleeve; four to eight tiny holes are formed between the inner annular groove and the outer annular groove; a water seal groove is formed in the pump head, a water seal is arranged in the water seal groove, a zigzag runner is arranged on the portion, on one side of the water seal, of the water seal groove, and the zigzag runner communicates with the water inlet; and the oil seal, the intermediate sleeve, the auxiliary water seal and the water seal make contact with the outer wall of the plunger sequentially.

Description

The oil mixing with water blocking mechanism of small-sized electric cleaning machine

Technical field

The present invention relates to the oil mixing with water blocking mechanism of small-sized electric cleaning machine, more particularly to small-sized electric cleaning machine.

Background technology

Operationally, of plunger will be lubricated and be lowered the temperature power washer by machine oil, and the other end of plunger High-pressure wash water in container is extracted out, therefore plunger is in side-to-side movement, one contacts with machine oil, and other end is clear with high pressure Wash water is contacted, and common oil sealing and water seal have generally only been arranged in the pump housing and pump head of existing cleaning machine, and such working time is long Easily cause oil mixing with water, water to penetrate into and can work the mischief to high-speed motion part in machine oil and bring noise, shorten component life, So as to affect entire machine service life.

The content of the invention

The invention aims to overcome the shortcoming that prior art is present, there is provided one kind avoids oil mixing with water, sealing It is good, it is ensured that the oil mixing with water blocking mechanism of the small-sized electric cleaning machine of whole machine service life.

The oil mixing with water of small-sized electric cleaning machine of the present invention blocks the technical scheme of mechanism：Including motor, motor Front end arranges connecting seat, and connecting seat front end arranges the pump housing, and pump housing front end arranges pump head, and the output shaft connection of the motor is oblique Disk, arranges plane bearing on swash plate, plunger hole is provided with the described pump housing, arranges plunger in plunger hole, one of plunger with it is oblique Plane bearing on disk contacts, and water inlet, delivery port and cavity volume are formed with described pump head, and water inlet connection water inlet is unidirectional Valve, delivery port connects water one-way valve, it is characterised in that：The described pump housing is located at the opposite side of plunger hole and is formed with oil sealing installation Groove, spacer groove and middle grooving, arrange oil sealing in oil sealing mounting groove, spacer is arranged in spacer groove, arrange middle in middle grooving Set, in intermediate sleeve inwall secondary water sealed tank is formed with, and arranges secondary water seal in secondary water sealed tank, and intermediate sleeve side is formed with inner ring connected in star and outer Annular groove, is formed with 4-8 apertures between inner and outer rings connected in star, water sealed tank is formed with pump head, and water seal is arranged in water sealed tank, Water sealed tank is located at the side of water seal and is formed with tortuous flow path, and tortuous flow path is communicated with water inlet, oil sealing, intermediate sleeve, secondary water seal and water Envelope contacts successively with plunger outer wall.

The invention discloses a kind of oil mixing with water blocking mechanism of small-sized electric cleaning machine, is mainly characterized by being located in the pump housing Plunger hole opposite side is formed with oil sealing mounting groove, spacer groove and middle grooving, and oil sealing is arranged in oil sealing mounting groove, arranges in spacer groove Spacer, in middle grooving intermediate sleeve is arranged, and water sealed tank is formed with pump head, and water seal is arranged in water sealed tank, and is formed with pump head Tortuous flow path, tortuous flow path is communicated with water inlet, during work, drives swash plate rotation, swash plate to drive and incline by the output shaft of motor The plane bearing rotation for tiltedly arranging, by plane bearing and plunger contact, plunger moves reciprocatingly under the action of the spring, works as plunger During to left movement, vacuum is produced in the cavity volume of plunger right-hand member, pressure step-down opens water feeding one-way valve, water is from water inlet and enters Water one-way valve is entered in cavity volume, the pressure recovery into after water in cavity volume, and water feeding one-way valve is closed, and now plane bearing drives post Plug moves right, and under pressure, water promotes out water one-way valve to open, and water Jing goes out water one-way valve and exports from delivery port, and post In left and right motion, plunger left-hand face can adhere to machine oil to plug, and the right lateral surface of plunger understands attached water, and plunger is to left movement When, the water of its right lateral surface attachment can first pass through water seal and be scraped off, if being still attached with the moisture film of residual, the plunger with moisture film Just be moved to intermediate sleeve position, by intermediate sleeve in secondary water seal remaining moisture film is scraped off completely, and make water flow to centre In inner ring connected in star, due to being formed with aperture in inner ring connected in star, scrape the water Jing apertures for separating out and flow to external annular groove, then by song Baffling road is flowed back in water inlet, and plunger is when moving right, and the machine oil of its left-hand face attachment is scraped off by oil sealing, if still having Fraction of machine oil film is remained, due to the spacer for having a segment distance between oil sealing and secondary water seal, spacer separates oil sealing with intermediate sleeve A dead band is formed, making the machine oil film of residual cannot run to secondary water seal position, so as to be prevented effectively from oil mixing with water, it is ensured that whole machine Service life.

The oil mixing with water blocking mechanism of small-sized electric cleaning machine of the present invention, on the side wall of the intermediate sleeve sealing is formed with Groove, arranges sealing ring in seal groove, sealing ring and the intermediate sleeve side wall contact with the inwall of pump head.There is sealing ring, Ensure the sealing of contact position between the pump housing and pump head.

Description of the drawings

Fig. 1 is the schematic perspective view that the oil mixing with water of small-sized electric cleaning machine blocks mechanism；

Fig. 2 is that motor output shaft drives swash plate and plane bearing and plunger mated condition structural representation；

Fig. 3 is that plunger draws water status architecture schematic diagram；

Fig. 4 is close-up schematic view at the A of Fig. 3；

Fig. 5 is plunger water delivery status architecture schematic diagram；

Fig. 6 is the schematic front view of the pump housing；

Fig. 7 is B-B direction structure schematic diagrames of the pump housing；

Fig. 8 is the structural representation of intermediate sleeve.

Specific embodiment

The present invention relates to a kind of oil mixing with water blocking mechanism of small-sized electric cleaning machine, as Figure 1-Figure 8, including electricity Motivation 1, motor front end arranges connecting seat 2, and connecting seat front end arranges the pump housing 3, and pump housing front end arranges pump head 5, the motor 1 Output shaft 11 connection swash plate 12, on swash plate arrange plane bearing 13, plunger hole 31 is provided with the described pump housing 3, in plunger hole Plunger 30 is set, and of plunger contacts with the plane bearing on swash plate, and in described pump head 5 water inlet 51, water outlet is formed with Mouth 52 and cavity volume 53, water inlet connection water feeding one-way valve 54, delivery port connects water one-way valve 45, it is characterised in that：Described The pump housing 3 is located at the opposite side of plunger hole 31 and is formed with oil sealing mounting groove 32, spacer groove 33 and middle grooving 34, sets in oil sealing mounting groove Oil sealing 35 is put, spacer 36 is set in spacer groove, intermediate sleeve 37 is set in middle grooving 34, in intermediate sleeve inwall secondary water sealed tank is formed with 38, secondary water seal 39 is set in secondary water sealed tank, intermediate sleeve side is formed with inner ring connected in star 40 and external annular groove 41, inside and outside annular 4-8 apertures 42 are formed between groove, water sealed tank 55 is formed with pump head 5, water seal 56 is set in water sealed tank, water sealed tank is located at The side of water seal is formed with tortuous flow path 57, and tortuous flow path is communicated with water inlet 51, oil sealing 35, intermediate sleeve 37, secondary water seal 38 and water Envelope 56 contacts successively with plunger outer wall.Be mainly characterized by the pump housing 3 positioned at the opposite side of plunger hole 31 be formed with oil sealing mounting groove 32, Spacer groove 33 and middle grooving 34, arrange oil sealing 35 in oil sealing mounting groove, spacer 36 is arranged in spacer groove, arrange in middle grooving Intermediate sleeve 37, is formed with water sealed tank 55 in pump head 5, and water seal 56 is arranged in water sealed tank, and tortuous flow path 57 is formed with pump head, bent Baffling road is communicated with water inlet 51, during work, drives swash plate 12 to rotate by the output shaft 11 of motor 1, and swash plate drives inclination to set The plane bearing 13 put rotates, and is contacted with plunger 30 by plane bearing, and plunger moves reciprocatingly under the action of the spring, works as plunger During to left movement, vacuum is produced in the cavity volume 53 of plunger right-hand member, pressure step-down opens water feeding one-way valve 54, and water is from water inlet 51 and water feeding one-way valve enter cavity volume 53 in, the pressure recovery into after water in cavity volume, water feeding one-way valve 54 is closed, now plane Bearing 13 drive plunger 30 move right, under pressure, water promotes out water one-way valve 55 to open, water Jing go out water one-way valve from Delivery port 52 is exported, and plunger 30, in left and right motion, plunger left-hand face can adhere to machine oil, and the right lateral surface of plunger can be attached Water, when to left movement, the water of its right lateral surface attachment can first pass through water seal 56 and be scraped off plunger, if being still attached with residual Moisture film, the plunger with moisture film is just moved to the position of intermediate sleeve 37, by intermediate sleeve in secondary water seal 39 by remaining moisture film Scrape off completely, and water is flow in the inner ring connected in star 40 of centre, due to being formed with aperture 42 in inner ring connected in star, scrape the water for separating out Jing apertures flow to external annular groove 41, then are flowed back in water inlet 51 by tortuous flow path 57, and plunger 30 is when moving right, and it is left The machine oil of side surface attachment is scraped off by oil sealing 35, if still there is the fraction of machine oil film of residual, due between oil sealing and secondary water seal There is the spacer 36 of a segment distance, oil sealing and intermediate sleeve 37 are separated to form a dead band by spacer, and making the machine oil film of residual cannot transport Go to the position of secondary water seal 38, so as to be prevented effectively from oil mixing with water, it is ensured that whole machine service life.The side wall of the intermediate sleeve 37 On be formed with seal groove 43, sealing ring 44 is set in seal groove, sealing ring and the intermediate sleeve side wall connect with the inwall of pump head 5 Touch.There is sealing ring 44, it is ensured that the sealing of contact position between the pump housing 3 and pump head 5.

Claims (2)

1. the oil mixing with water blocking mechanism of small-sized electric cleaning machine, including motor（1）, motor front end arranges connecting seat（2）, Connecting seat front end arranges the pump housing（3）, pump housing front end arranges pump head（5）, the motor（1）Output shaft（11）Connection swash plate （12）, plane bearing is set on swash plate（13）, the described pump housing（3）In be provided with plunger hole（31）, plunger is set in plunger hole （30）, of plunger contacts with the plane bearing on swash plate, described pump head（5）In be formed with water inlet（51）, delivery port （52）And cavity volume（53）, water inlet connection water feeding one-way valve（54）, delivery port connects water one-way valve（45）, it is characterised in that： The described pump housing（3）Positioned at plunger hole（31）Opposite side be formed with oil sealing mounting groove（32）, spacer groove（33）With middle grooving （34）, oil sealing is set in oil sealing mounting groove（35）, spacer is set in spacer groove（36）, middle grooving（34）Middle setting intermediate sleeve （37）, in intermediate sleeve inwall secondary water sealed tank is formed with（38）, secondary water seal is set in secondary water sealed tank（39）, intermediate sleeve side is formed with inner ring Connected in star（40）And external annular groove（41）, 4-8 apertures are formed between inner and outer rings connected in star（42）, in pump head（5）Middle system There is water sealed tank（55）, water seal is set in water sealed tank（56）, water sealed tank be located at water seal side be formed with tortuous flow path（57）, complications stream Road and water inlet（51）Communicate, oil sealing（35）, intermediate sleeve（37）, secondary water seal（38）And water seal（56）Connect with plunger outer wall successively Touch.

2. the oil mixing with water of small-sized electric cleaning machine as claimed in claim 1 blocks mechanism, it is characterised in that：The intermediate sleeve （37）Side wall on be formed with seal groove（43）, sealing ring is set in seal groove（44）, sealing ring and the intermediate sleeve side wall Face and pump head（5）Inwall contact.