Hose connecting structure
The present invention relates to the dust removal with machine technical field, particularly relate to a kind of connecting bend structure of flexible pipe of dust catcher.
Usually, vacuum cleaner is to utilize vacuum to produce suction to suck air, makes air flow through various filters, airborne foreign matter is filtered the device in the cleaning chamber.
In general, vacuum cleaner mainly comprises aspirator and suction line, with motor and blower fan is that the aspirator that dominant shape becomes is arranged in the body, suction line comprises suction nozzle and air intake duct, and the air entry of the oriented under shed of suction nozzle and telescoping tube and flexible pipe by air intake duct communicate with the air inlet of body inner blower.During the dust catcher running, the impeller of motor drives blower fan rotates at a high speed, and the air in the dust catcher is discharged, and forms instantaneous vacuum in dust catcher, and forms a quite high Negative Pressure Difference between the ambient atmosphere.Under the effect of this Negative Pressure Difference, near the dust the suction nozzle sucks in the dust bucket in the body by air entry together with air.The air that contains dust after filtering, flows back to the dust catcher outside from air outlet again in the body dust bucket.Like this, just reach the effect of dust out, clean floor.The suction rate of vacuum cleaner is divided into a plurality of class of operating control, adapts to the scope of operation of different cleaning objects such as ground, bed surface, sofa, corner, so that aspirate dust everywhere better.
Press the use and the moving method of vacuum cleaner, can be divided into horizontally, vertical, portable etc., little foreign matters such as dust clean: ground such as vertical easy cleaning woollen blanket with comparalive ease in the wherein horizontal family that is mainly used in; The portable narrow positions such as step, desktop of easily cleaning.
Fig. 1 is the schematic perspective view of the dust catcher of prior art.As shown in Figure 1, vacuum cleaner comprises the body of dust collector 1 that wherein has the suction force generator, is provided with the dust-collector that the dust and the gas of introducing is separated and stores the dust that separates in it; Chassis 2, it comprises that suction contains the suction nozzle with battery unit that gas passed through of dust; And in order to the electric wire 4 of energy supply; Allow the user to handle the handle 3 and the roller 8 of vacuum cleaner operation; The connection flexible pipe 5 that suction nozzle with battery unit is connected with body of dust collector 1, and the fixed position 5a of flexible pipe 5.One side of body 1 is fixed with on fixture 6a and prolongs pipe 6 and band brush suction nozzle 7, and is different local in order to sweep.
Figure 2 shows that the hose connecting structure schematic diagram of prior art.The flexible pipe 5 of prior art is made by flexible material, and demountable 2 rear portions, chassis of brush that are combined in, bottom that connect flexible pipe 5 are being guided in the dust-collector of body by the air-flow that is mingled with dust that suction nozzle with battery unit sucks.When the lower end of flexible pipe 5 with after separate on chassis 2, connect other suction apparatus such as prolonging pipe or brush, the bottom of above-mentioned connection flexible pipe 5 connect above-mentioned slit or bed accessory with other suction apparatus such as suction inlets after, the user can use other suction apparatus to clean.
But, existing vacuum cleaner, the top of its body 1 is fixedly connected with the junction that is connected flexible pipe 5, and the through hole of this junction is arranged on upper part of body, when other suction apparatus such as the end of flexible pipe 5 installation prolongation pipe or brush clean, can twist or situation such as rotation according to user's user mode flexible pipe 5 roots, make the stream of flexible pipe 5 inside produce distortion owing to reverse or rotate, make by above-mentioned flexible pipe 5 inhaled airs and hindered, make stream obstructed, and the suction of vacuum cleaner is hindered, and then reduce the efficient of vacuum cleaner.After process worked long hours and deposits, expendable caving in property distortion took place in the junction of flexible pipe and body, influences performance and attractive in appearance.
Summary of the invention
Technical problem to be solved by this invention is the shortcoming that overcomes prior art, and a kind of hose connector is provided, and it is connected flexible pipe with conduit, guarantees that flexible pipe can be rotatably connected with respect to body, avoids flexible pipe to deform, and improves user satisfaction.
The technical solution adopted in the present invention is:
A kind of hose connecting structure, described flexible pipe is in order to connect cleaner suction nozzle and conduit, and hose end is connected with outer elbow, and end of conduit is connected with interior elbow, and described outer elbow and interior elbow are rotatably connected.
Interior elbow and conduit are integrally formed, and outer elbow is fixedlyed connected with flexible pipe.
Outer elbow and flexible pipe are rotatably connected.
Be formed with fin in the end cavity of elbow and outer elbow link in described, described fin extends to form closed circle at mouth of pipe inner surface; The straight outer surface in the end of the described outer elbow landform that caves inward circularizes groove, and described annular groove can be spacing in it with fin.
Described fin is for being divided at interval several sections symmetrically.
Be provided with sealing gasket between interior elbow and the outer elbow.
Interior elbow has jump ring with the junction outer setting of outer elbow.
Elbow and outer elbow are 90 ° of elbow bends in described.
The invention has the beneficial effects as follows: hose connection device of the present invention is simple in structure, and is easy to assembly.Flexible pipe and body through hole are set to be rotatably connected, the flexible connection of outer elbow and interior elbow, and the different directions of can realizing easy to use rotates.Utilize to turn to reach during work to rotate freely, sagging naturally the preventing of flexible pipe is out of shape, overall appearance, generous improves the quality of products.
Description of drawings
Fig. 1 is the vacuum cleaner structural representation of prior art;
Fig. 2 is the flexible pipe connection status schematic diagram of prior art;
Fig. 3 is a flexible pipe connection status schematic diagram of the present invention;
Fig. 4 is an outer elbow structure schematic diagram of the present invention;
Fig. 5 is an outer elbow B-B line cross sectional view shown in Figure 4;
Fig. 6 is an interior elbow structure schematic diagram of the present invention;
Fig. 7 is a flexible pipe user mode schematic diagram of the present invention.
The specific embodiment
Be described in further detail below in conjunction with the hose construction device of the drawings and specific embodiments dust catcher of the present invention:
Shown in Fig. 3-7, dust collector hose of the present invention 50 ends are connected with elbow 60 1 ends, the other end of elbow 60 is connected with the conduit of inner of dust catcher body 70, the other end of flexible pipe 50 is set with the syndeton 80 in order to be connected with suction nozzle, this syndeton 80 is same as the prior art, so do not repeat them here.
Described elbow 60 comprises outer elbow 61 and the interior elbow 65 that can be complementary and be connected with outer elbow 61, and wherein said outer elbow 61 and interior elbow 65 are 90 ° of elbow bends.Elbow 65 1 ends are formed with the syndeton that is fixedly connected with conduit 70 in described, are formed with fin 66 in the end pipe oral cavity body of the other end, and described fin 66 extends to form closed circle at mouth of pipe inner surface.Accordingly; the internal diameter that the end diameter of described outer elbow 61 and interior elbow 65 are formed with the annular ridge end is complementary; circularize groove 62 in its outer surface landform that caves inward; position is set for it and fin 66 is complementary; promptly when fin 66 is limited in annular groove 62 inside accordingly; the edge of the end of interior elbow 65 and outer elbow 61 just correspondingly holds the end in correspondence; to improve the sealing of two elbow junctions; avoid the bulky grain dust to enter annular groove inside simultaneously, influence the rotation of both diameters.
Further, for ease of installing, make in the convenient insertion annular groove 62 of fin 66 energy, described fin is interrupted structure, promptly divides several sections fins at interval symmetrically, spaced structure is set between every section makes that fin is easily deformable so that finish installation.Be typically the fastness of convenience, workability and the cooperation of guarantee installing, described outside fin is divided at intervals the 3-6 section symmetrically and is advisable.
The connector end of outer elbow 61 and flexible pipe 50 links and flexible pipe 50 is provided with the fin and the circular groove structure of coupling equally, so that flexible pipe 50 and outer elbow are rotatably connected, its concrete set-up mode is identical with the syndeton of outer elbow and interior elbow, so do not repeat them here.
Further, the junction of the junction of elbow and interior elbow and outer elbow and flexible pipe is provided with the sealing that sealing gasket connects with further raising outside.
Fastness for guaranteeing to be connected between outer elbow and the interior elbow prevents that both break away from, and in the periphery of the junction of interior connector 65 jump ring is set, and guarantees to guarantee when outer elbow can relatively rotate the stability of junction.
In concrete the installation, interior elbow 65 is arranged on inner of dust catcher body and fixedlys connected with conduit 70, it is provided with the through hole that the fin end is arranged on body, be embedded in the annular groove with making the fin coupling in then outer elbow 61 being inserted accordingly in the port of elbow 65, and the corresponding coupling with outer elbow of flexible pipe 50 is connected.The outer elbow in assembling back can be with respect to the rotation on the interior elbow generation vertical plane, and can guarantee being tightly connected between the two rotation the time; Flexible pipe can be with respect to the rotation on excurvation hair unboiled water plane, can guarantee being tightly connected between the two simultaneously when rotating.
After vertical type dust collector was connected with the mains, sucking motor will start, and by sucking the vacuum pressure that motor produces, will suck the air that contains foreign matters such as dust.The extraneous air that is inhaled into by suction nozzle be connected flexible pipe and be drawn into body, the air that is drawn into body is flow into dust collect plant inside again.When needs connect other suction apparatus such as prolonging pipe or brush, the syndeton 80 of flexible pipe 50 and suction nozzle broken away from connect and be connected with corresponding suction apparatus, when sweeping, because flexible pipe link and being rotatably connected of outer elbow and being rotatably connected of outer elbow and interior elbow, guarantee to have avoided when flexible pipe rotates flexibly the damage to the through hole flexible pipe, improved product quality.
Further, also can outer elbow and flexible pipe is integrally formed, interior elbow and conduit is integrally formed, to reduce parts, reduce the assembling difficulty.
In sum, hose connection device of the present invention is simple in structure, and is easy to assembly.Flexible pipe and body through hole are set to be rotatably connected, the flexible connection of outer elbow and interior elbow, and the different directions of can realizing easy to use rotates.Utilize to turn to reach during work to rotate freely, sagging naturally the preventing of flexible pipe is out of shape, overall appearance, generous improves the quality of products.
The above only is a preferred implementation of the present invention; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications; annular groove is set and in the elbow ends cavity fin is set accordingly outside as the port outer surface at interior elbow, then interior elbow is inserted outer elbow ends etc., these improvements and modifications also should be considered as protection scope of the present invention.