CN214906375U

CN214906375U - Drum device of hand-held dust collector

Info

Publication number: CN214906375U
Application number: CN202120323525.4U
Authority: CN
Inventors: 刘新发
Original assignee: Ningbo Rooma Electric Co ltd
Current assignee: Ningbo Rooma Electric Co ltd
Priority date: 2021-02-04
Filing date: 2021-02-04
Publication date: 2021-11-30
Anticipated expiration: 2031-02-04

Abstract

The utility model discloses a roller device of a handheld dust collector, which comprises a roller and a roller cover, wherein a driving shaft connected with a motor is rotationally matched at one end of the roller cover, the driving shaft is provided with a connector which is matched with a central hole at one end of the roller and is circumferentially limited, the connector is circumferentially limited and is axially and slidably matched with the driving shaft, a spring is arranged between the connector and the step surface of the driving shaft, and the free end of the driving shaft is screwed with a screw which prevents the connector from axially separating from the driving shaft; the other end of the roller is rotatably connected with a first circular supporting seat, the other end of the roller cover is provided with a notch for the central convex column of the first circular supporting seat to radially enter, a central circular hole of the central convex column of the first circular supporting seat is abutted to a spherical convex column arranged at the other end of the roller cover, the connector is in a quincunx male tooth shape, and the central hole is in a quincunx female tooth shape. The roller device of the handheld dust collector can prevent the roller from radially jumping out, and the roller cover are relatively convenient and time-saving to mount and dismount.

Description

Drum device of hand-held dust collector

Technical Field

The utility model relates to a dust catcher technical field specifically says a cylinder device of hand-held type dust catcher.

Background

The drum device is one of the important parts of the hand-held cleaner. The prior art roller devices for hand-held cleaners have different and longer structures. However, the prior art roller device has the following defects: 1. the connection structure of cylinder and cylinder cover is complicated relatively, if be equipped with the apron that prevents the cylinder and radially run out at cylinder both ends, the spiro union is time-consuming relatively when installation and dismantlement, and apron material cost is higher relatively. 2. When the device works, the device has axial play, noise is increased, and the device is easy to wear. 3. When the roller goes deep into the bottom space of the furniture to suck dust, the light is weak, and the operation and the dust suction effect are influenced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a cylinder device of hand-held vacuum cleaner that can prevent that the cylinder from radially running out, make the installation of cylinder and cylinder cover and dismantle convenient saving time relatively again.

The technical solution of the utility model is to provide a roller device of a handheld dust collector, which comprises a roller and a roller cover, wherein a driving shaft connected with a motor is rotatably matched at one end of the roller cover, the driving shaft is provided with a connector which is matched with a central hole at one end of the roller and is circumferentially limited, the connector is circumferentially limited and is axially matched with the driving shaft in a sliding manner, a spring is arranged between the connector and the step surface of the driving shaft, and the free end of the driving shaft is screwed with a screw which prevents the connector from axially separating from the driving shaft; the other end of the roller is rotatably connected with a first circular supporting seat, the other end of the roller cover is provided with a notch for the central convex column of the first circular supporting seat to enter in the radial direction, and a central circular hole of the central convex column of the first circular supporting seat is abutted to a spherical convex column arranged at the other end of the roller cover.

After the structure above the adoption, the utility model discloses hand-held type dust catcher's cylinder device has following advantage: connecting structure of cylinder and cylinder cover is simple relatively, it is spacing with the connector cooperation with the centre bore of cylinder one end earlier and by circumference, radially push into the mounted position with the center projection of the cylinder other end again, and under one end spring effort, make the center round hole of the center projection of the other end support tightly on the sphere projection of the cylinder cover other end, need dismantle reverse operation can, its installation with dismantle all very convenient and fast, time and labor saving, when the cylinder rolls, cylinder one end is driven by the drive shaft, the relative first circular supporting seat of the cylinder other end rotates, the cylinder can not radially run out, the phenomenon of cylinder axial float has also been avoided, noise and wearing and tearing have been reduced.

Furthermore, a driven shaft at the other end of the roller is fixed with an inner ring of the first bearing, and an outer ring of the first bearing is fixed with the first circular supporting seat. After adopting above structure, the cylinder rolls more nimble, has further reduced the noise.

Furthermore, the step surface of the driving shaft is the inner end surface of the inner ring of the second bearing fixed with the driving shaft, and the outer ring of the second bearing is fixed with the second circular supporting seat. After adopting above structure, the cylinder rolls more nimble, has further reduced the noise.

Furthermore, the shape of the connector is a quincunx male tooth, and the shape of a central hole at one end of the roller which is matched with the connector and axially limited is a quincunx female tooth. After the structure more than adopting, the one end of cylinder is more convenient, more swift with being connected of drive shaft, and the drive shaft is spacing more reliable with the circumference of cylinder, and the drive of drive shaft to the cylinder is more laborsaving.

Furthermore, an oblong through hole is formed in an end plate of the roller cover provided with the notch, and an inserting plate used for limiting the radial direction of the central convex column is arranged in the oblong through hole in an interference fit mode. After adopting above structure, provide the double insurance to preventing that the central projection of the cylinder other end from radially running out, and this structure is very simple, and material cost increases very little.

Furthermore, the roller cover is provided with a light sensor and an LED lamp for illumination, and the light sensor and the LED lamp are electrically connected with a main controller arranged in the roller cover. After the structure above the adoption, when illumination was less than the design value, the signal of telecommunication that light sensor will change was passed to main control unit, and main control unit starts the LED lamp of illumination usefulness, and the cylinder of this dust catcher can provide the illumination and conveniently operate and guarantee dust absorption effect when deepening the dust absorption of weak departments of light such as furniture bottom space, makes the illumination power consumption as few as possible again.

Drawings

Fig. 1 is a schematic structural view of the drum device of the present invention mounted on a vacuum cleaner.

Fig. 2 is a schematic view showing a three-dimensional structure of the roller device (showing the other end of the roller cover) with the roller removed.

Fig. 3 is a schematic perspective view (showing the other end of the roller) of the roller device according to the present invention.

Fig. 4 is a schematic view (showing one end of the drum cover) of the drum device of the present invention with the drum removed.

Fig. 5 is a schematic perspective view (showing one end of the drum) of the drum device according to the present invention.

Fig. 6 is a schematic diagram of the explosion structure of the drum device of the present invention (showing one end of the drum cover, the connector, the screw, and the other end of the drum).

Fig. 7 is a schematic view of a partial longitudinal section of a drum cover in the drum device according to the present invention (the positions of both ends are opposite to those in fig. 2, 4 and 6).

Fig. 8 is an enlarged schematic view of a in fig. 7.

Fig. 9 is a schematic structural view of the drum device according to the present invention, in which the insertion plate is inserted into the other end of the drum when the drum is mounted on the drum cover (the outside of the insertion plate and the oblong through hole are not shown in the figure).

The roller cover is shown in the figure 1, a roller cover is shown in the figure 2, a roller is shown in the figure 3, a spherical convex column is shown in the figure 4, notches are shown in the figure 5, a first circular supporting seat is shown in the figure 6, a central circular hole is shown in the figure 7, a central convex column is shown in the figure 8, a second circular supporting seat is shown in the figure 9, a connecting head is shown in the figure 10, quincunx male teeth, 11, quincunx female teeth, 12, a spring is shown in the figure 13, a driving shaft is shown in the figure 14, a screw is shown in the figure 15, a first bearing is shown in the figure 16, a driven shaft is shown in the figure 17, a second bearing is shown in the figure 18, a synchronous belt 19, a motor is shown in the figure 20, and an inserting plate is shown in the figure.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding the present invention, but the present invention is not limited thereto. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

As shown in fig. 1 and 7, the roller device of the handheld vacuum cleaner of the present invention includes a roller 2 and a roller cover 1. A drive shaft 13 connected to a motor 19 is rotatably fitted to one end of the drum cover 1. The motor 19 is also called a motor, and the drive shaft 13 is also called a drive shaft. The motor 19 may be connected to a timing pulley on the motor shaft and a timing pulley on the drive shaft 13 via a timing belt 18.

As shown in fig. 1, 2, 3, 4, 5, 6, 7 and 8.

The driving shaft 13 is provided with a connector 9 which is matched with a central hole at one end of the roller 2 and is limited in the circumferential direction. The connector 9 is circumferentially limited and axially matched with the driving shaft 13 in a sliding manner, if a polygonal shaft is adopted to be matched with a polygonal hole in a sliding manner, a spring 12 such as a supporting spring or a pressure spring is arranged between the connector 9 and the step surface of the driving shaft 13, a screw 14 for preventing the connector 9 from axially separating from the driving shaft 13 is screwed on the free end of the driving shaft 13, and the large end of the screw 14 blocks the outer end surface of the connector 9.

The stepped surface of the drive shaft 13 is preferably an inner end surface of an inner ring of a second bearing 17 fixed to the drive shaft 13, and an outer ring of the second bearing 17 is fixed to the second circular support base 8. I.e. provided with a second bearing 17.

The shape of the connector 9 is preferably a quincunx male tooth 10, and the shape of a central hole at one end of the roller 2, which is matched with the connector 9 and axially limited, is a quincunx female tooth 11.

The other end of the roller 2 is rotatably connected with a first circular supporting seat 5, the other end of the roller cover 1 is provided with a notch 4 for the central convex column 7 of the first circular supporting seat 5 to enter radially, and a central circular hole 6 of the central convex column 7 of the first circular supporting seat 5 is abutted to a spherical convex column 3 arranged at the other end of the roller cover 1. The central boss 7 may be polygonal such as hexagonal or circular.

The driven shaft 16 at the other end of the roller 2 is fixed with the inner ring of the first bearing 15, and the outer ring of the first bearing 15 is fixed with the first circular supporting seat 5. I.e. provided with a first bearing 15.

As shown in fig. 9, the end plate of the roller cover 1 having the notch 4 has an oblong through hole (not shown), and an insertion plate 20 for radially limiting the central convex column 7 is disposed in the oblong through hole in an interference fit manner. The outside of the board 20 is also not shown. The interference fit is well understood: the outer side is thick, the inner side is thin, and the cross section becomes thin gradually from outside to inside, namely the cross section is trapezoidal, the two are in interference fit by force during insertion, namely the two are in tight fit, and the plugboard can be taken out by pushing the inner side of the plugboard outwards by force during disengagement. Of course, a limiting structure such as a buckle is added on the outer side.

The roller cover 1 can be provided with a light sensor and an LED lamp for illumination, and the light sensor and the LED lamp are electrically connected with a main controller (not shown in the figures) such as a control chip arranged in the roller cover 1.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a cylinder device of hand-held type dust catcher, includes cylinder and cylinder cover, the drive shaft normal running fit who is connected with the motor is in the one end of cylinder cover, its characterized in that: the driving shaft is provided with a connector which is matched with a central hole at one end of the roller and is limited in the circumferential direction, the connector is limited in the circumferential direction and is matched with the driving shaft in an axial sliding manner, a spring is arranged between the connector and the step surface of the driving shaft, and the free end of the driving shaft is in threaded connection with a screw which prevents the connector from axially separating from the driving shaft; the other end of the roller is rotatably connected with a first circular supporting seat, the other end of the roller cover is provided with a notch for the central convex column of the first circular supporting seat to enter in the radial direction, and a central circular hole of the central convex column of the first circular supporting seat is abutted to a spherical convex column arranged at the other end of the roller cover.

2. The drum device of a hand-held cleaner according to claim 1, wherein: the driven shaft at the other end of the roller is fixed with the inner ring of the first bearing, and the outer ring of the first bearing is fixed with the first circular supporting seat.

3. The drum device of a hand-held cleaner according to claim 2, wherein: the step surface of the driving shaft is the inner end surface of the inner ring of a second bearing fixed with the driving shaft, and the outer ring of the second bearing is fixed with a second circular supporting seat.

4. The drum device of a hand-held cleaner according to claim 1, wherein: the shape of the connector is quincunx male teeth, and the shape of a central hole at one end of the roller which is matched with the connector and axially limited is quincunx female teeth.

5. The drum device of a hand-held cleaner according to claim 1, wherein: an oblong through hole is arranged on the end plate of the roller cover with the gap, and an inserting plate used for limiting the radial direction of the central convex column is arranged in the oblong through hole in an interference fit manner.

6. The drum device of a hand-held cleaner according to claim 1, wherein: the roller cover is provided with a light sensor and an LED lamp for illumination, and the light sensor and the LED lamp are electrically connected with a main controller arranged in the roller cover.