KR20180002564A - Vacuume cleaner - Google Patents

Abstract

Disclosed is a vacuum cleaner capable of maximizing a dust suction rate per unit time. According to the present invention, the vacuum cleaner comprises: a bearing installed to be fixated by a fastening bolt when being disposed inside and outside of a side surface part of a housing corresponding to a circumference of a rotary shaft of an impeller, wherein the rotary shaft of the impeller is inserted to be able to stably rotate; and a tension adjustment member installed to adjust the distance in left and right directions on a front surface of the housing corresponding to a rotational path of a transmission belt wound on driving and driven pulleys.

Description

Vacuum cleaner

The present invention relates to a vacuum cleaner, and more particularly, to a vacuum cleaner in which an impeller and a motor are vertically spaced from each other in a same space so that a driving shaft of an impeller and a driving shaft of a motor are arranged in parallel, And the rotational speed of the impeller is increased by increasing the rotational ratio of the impeller to the drive shaft of the motor so that the dust suction rate per unit time can be maximized while the driving force of the motor is transmitted to the impeller The present invention relates to a vacuum cleaner, and more particularly, to a vacuum cleaner capable of minimizing the occurrence of malfunctions even when operated for a long period of time.

Generally, a vacuum cleaner refers to a device that uses a suction force of an impeller rotated by driving of a motor to suck foreign matter such as dust and collect dust, and discharges the air again to the outside.

Such a vacuum cleaner can be classified into a cylindrical floor type, an upright type, a hand type, and the like depending on a use purpose and a moving method. The floor type is mainly used for domestic purposes and is easy to clean dust such as dust, It is easy to clean the floor such as the stairs, the desk, and so on.

In addition, a vacuum cleaner can be classified into a filter type and a cyclone type according to a method of filtering a cleaning substance such as dust or hair from an intake air. The filter type is a type in which air containing a cleaning substance is passed through a kind of dust bag While the cyclone type is designed to rotate the intake air containing the cleaning material, so that the cleaning material contained in the intake air falls down to the floor due to its own weight, so it is necessary to separate Dust bag is not necessary and it is applied recently.

Meanwhile, an impeller is installed inside the main body of the vacuum cleaner. The motor is driven according to the application of a current. The impeller is rotated by receiving the driving force of the motor to generate a suction force to suck and discharge foreign substances such as dust. In the case of a conventional vacuum cleaner, as shown in FIG. 2 of the Korean Registered Patent Application No. 10-0417800 (the name of the industrial vacuum-type vacuum cleaner using a vacuum suction pump), the impeller is directly coupled to the drive shaft of the motor and rotated The size of the vacuum cleaner becomes unnecessarily large, and there is a problem in that it is very inconvenient to use and store.

Further, in the conventional vacuum cleaner, since the impeller is directly coupled to the driving shaft of the motor, the number of revolutions of the impeller can not be increased, so that the suction efficiency per unit time is greatly limited.

1: Korean Registered Patent Publication No. 10-0417800, "Industrial Vacuum Cleaner Using Vacuum Suction Pump".

An object of the present invention is to provide an impeller and a motor which are vertically spaced apart from each other in the same space so that a driving shaft of an impeller and a driving shaft of a motor are arranged in parallel, And to provide a new vacuum cleaner that can be made compact.

Another object of the present invention is to provide a new vacuum cleaner which can maximize the dust suction rate per unit time by increasing the rotation ratio of the impeller to the drive shaft of the motor, thereby greatly increasing the number of revolutions of the impeller.

It is still another object of the present invention to provide a new vacuum cleaner that can adjust the tension of a transmission belt that transmits a driving force of a motor to an impeller, thereby preventing slippage of the transmission belt and minimizing occurrence of trouble even when the transmission belt is operated for a long time will be.

In order to achieve the above object, the present invention provides a caster comprising: a pedestal which is moved in front, rear, left and right directions by a caster; A housing vertically erected from an upper surface of the pedestal; A motor mounted on a bottom surface of the housing to drive the driving shaft in such a manner as to protrude outward from one side of the housing and to be driven according to a current; The motor is disposed vertically in the housing corresponding to the vertical direction of the motor. The rotating shaft is protruded outside the housing in the same direction as the driving shaft of the motor. The rotating shaft is rotated by the driving force of the motor to generate a suction force An impeller; A drive pulley fixedly coupled to an outer end of a drive shaft of the motor; A driven pulley fixedly coupled to an outer end of the rotating shaft of the impeller; A drive belt for transmitting driving force of the motor to the impeller while being wound around the drive pulley and the driven pulley; A suction pipe connected to the inside of the impeller housing so as to communicate with the inside of the impeller housing surrounding the impeller, the outside end of the suction pipe protruding outside the front surface of the housing; And a discharge pipe connected to the inside of the impeller housing so as to communicate with the inside of the impeller housing and having an outside end protruding outwardly from the rear of the housing, A bearing which is installed to be fixed by a fastening bolt in a state of being disposed on the outside and in which a rotary shaft of the impeller is inserted and is stably rotated; And a tension adjusting member installed to be adjustable in the left and right direction on the front surface of the housing corresponding to the turning path of the driving belt wound around the driving pulley and the driven pulley to adjust the tension of the driving belt.

In the present invention, the tension adjusting member is provided to be adjustable in the left and right direction in a state in which the tension adjusting member is in close contact with the front surface of the housing, and a guide groove is formed at both ends of the tension adjusting member. A tension regulating roller which is rotated while pressing the transmission belt in a state of being arbitrarily rotated on a support shaft protruding forward from the surface of the distance regulating plate; And a fixing bolt which is fitted to both guide holes on the distance adjusting plate and is detachably fastened.

The impeller and the motor are vertically spaced apart from each other in the housing and the driving force of the motor is applied to the impeller by the transmission belt in a state where the rotation axis of the impeller and the driving shaft of the motor are arranged in parallel. And the bearing, on which the rotary shaft is fitted, is detachably fixed to the inside and outside of the side portion of the housing corresponding to the rotation axis of the impeller by the fastening boat. Therefore, the size of the vacuum cleaner as a whole is compact, There is an effect that it is easy.

In addition, since the rotation ratio of the impeller rotation axis to the drive shaft of the motor can be greatly increased, the rotation speed of the impeller greatly increases as compared with the rotation number of the motor, thereby maximizing the dust suction rate per unit time.

In addition, since the tension of the transmission belt for transmitting the driving force of the motor to the impeller is appropriately adjusted by the tension adjusting roller constituting the separate tension adjusting member, the driving force of the motor is transmitted to the impeller stably And the occurrence of a failure is minimized even when the apparatus is operated for a long time.

1 is a perspective view illustrating a vacuum cleaner according to the present invention.
2 is a plan sectional view and a partially enlarged sectional view showing the inside of the vacuum cleaner according to the present invention.
3 is a perspective view showing a state in which a tension adjusting member is installed on a rotating path of a driving belt wound around a driving pulley provided on a driving shaft of a motor and a driven pulley provided on a rotating shaft of an impeller in a vacuum cleaner according to the present invention.
4 is a partially enlarged perspective photograph of Fig.
5 is an enlarged front view of the tension adjusting member applied to the present invention.
6 is a front view showing a state in which a tension of a driving belt wound around a driving pulley provided on a driving shaft of a motor and a driven pulley provided on a rotating shaft of an impeller in a vacuum cleaner according to the present invention is adjusted by a tension adjusting member.
7 is a plan view showing an operating state of the vacuum cleaner according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 to 7, a vacuum cleaner 10 according to the present invention is provided with a pedestal 14 which is moved in front, rear, left, and right directions by a caster 12.

A housing 16 is vertically installed on the upper surface of the pedestal 14 and a motor 18 driven by the application of a current is disposed on the inner bottom surface of the housing 16. The motor 18, The driving shaft 20 is installed to protrude outward from one side of the housing 16.

In the present invention, an impeller 22 is installed inside the housing 16 corresponding to the vertical direction of the motor 18 to generate a suction force while receiving the power of the motor 18.

The rotating shaft 24 of the impeller 22 is configured to protrude outside the housing 16 in the same direction as the mounting direction of the drive shaft 20 of the motor 18. [

A driving pulley 26 is fixedly coupled to an outer end of the driving shaft 20 of the motor 18 and a driven pulley 28 is fixedly coupled to an outer end of the rotating shaft 24 of the impeller 22. [ And a driving belt 30 for transmitting the driving force of the motor 18 to the impeller 22 is wound around the driving pulley 26 and the driven pulley 28.

The impeller housing 22a surrounding the impeller 22 is provided with a separate suction pipe 32 and a discharge pipe 34 so that the inner end of the suction pipe 32 is connected to the center of the impeller housing 22a, And the outer end of the suction pipe 32 is configured to protrude outside the front surface of the housing 16.

The inner end of the discharge pipe 34 is connected to the inside of the impeller housing 22a so as to communicate with the inside of the impeller housing 22a and the outer end of the discharge pipe 34 is installed to protrude outward from the rear surface of the housing 16 .

In the present invention, a bearing 36 is provided on the inside and outside of the side surface of the housing 16 corresponding to the circumference of the rotating shaft 24 of the impeller 22 so that the rotating shaft 24 is sandwiched and stably rotated. As shown in Fig.

Accordingly, the entire size of the vacuum cleaner is made compact.

A bearing 40 is provided on the inner circumferential surface of the bearing 36 so that the rotating shaft 24 of the impeller 22 rotates smoothly.

A separate lid 42 may be provided on the opened upper surface of the housing 16 and the driving shaft 20 of the motor 18 and the rotary shaft 24 of the impeller 22, A separate protective cover 44 may be detachably coupled to the side surface of the housing 16 where the drive pulleys 26, 26 and 28 and the transmission belt 30 are exposed.

In the present invention, a separate dust collecting container 46, which is sucked by the suction force of the impeller 22 and accommodates dust or foreign matter discharged through the discharge pipe 34, is connected to the discharge pipe 34, ) Can be connected to a separate inflow hose to which a suction plate is connected at the tip end.

In the present invention, the rotation ratio of the drive shaft 20 of the motor 18 and the rotation axis 24 of the impeller 22 is preferably designed to be 1: 4, but the rotation ratio is not limited thereto.

In the present invention configured as described above, the tension of the power transmission belt 30 is adjusted on the front surface of the housing 16 corresponding to the rotation path of the power transmission belt 30 wound around the driving pulley 26 and the driven pulley 28, A separate tension adjusting member 50 is provided so as to be adjustable in the left and right direction.

In the present invention, the tension adjusting member 50 includes a distance adjusting plate 52 installed to be adjustable in the left and right direction in a state of being closely attached to the front surface of the housing 16, and a distance adjusting plate 52 protruding forward from the surface of the distance adjusting plate 52 And a tension adjusting roller 56 that is rotated while pressing the transmission belt 30 from the side in a state of being arbitrarily rotated on the support shaft 54. [

A guide hole 52a is formed at the left and right sides of the distance adjusting plate 52 to adjust the distance in the left and right direction of the distance adjusting plate 52. The guide hole 52a is provided with a fixing bolt 58 Are detachably fitted and fastened.

The operation of the present invention is as follows.

2 to 7, when the vacuum cleaner 10 according to the present invention is used to remove foreign substances such as dust, when the motor 18 is driven according to the application of the electric current, The driving shaft 20 and the driving pulley 26 are rotated by the driving force of the motor 18 and the driving force of the motor 18 is transmitted to the driven pulley 28 by the driving belt 30, do.

When the impeller 22 is strongly rotated, a suction force is generated by the centrifugal force. Foreign substances such as dust are introduced into the impeller housing 22a through the suction pipe 32 by the suction force generated from the impeller 22 And then discharged to the outside through the discharge pipe 34 and then received in the dust collecting container 46.

The rotation ratio of the rotation shaft 24 of the impeller 22 to the drive shaft 20 of the motor 18 can be set to 1: 4 or more so that the impeller 22 22 is greatly increased, the dust suction rate per unit time is maximized.

3 to 6, when the tension of the power transmission belt 30 is adjusted, the guide groove 52a on the distance adjusting plate 52 constituting the tension adjusting member 50 The tightening bolt 58 is loosened to loosen the fastening force, the distance adjusting plate 52 is moved leftward or rightward to adjust the tightness of the tension adjusting roller 56 with respect to the power transmission belt 30, The tension of the transmission belt 30 is adjusted by tightening the fixing bolt 58 again.

As described above, when the tension of the transmission belt 30 for transmitting the driving force of the motor 18 to the impeller 22 is appropriately adjusted by the tension adjusting roller 56 constituting the separate tension adjusting member 50 The driving force of the motor 18 is stably transmitted to the impeller 22 while the sliding of the transmission belt 30 is prevented, and the occurrence of a failure is minimized even when the motor 18 is operated for a long time.

10: Vacuum cleaner
12: Caster 14: Pedestal
16: housing 18: motor
20: drive shaft 22: impeller
22a: impeller housing
24: rotating shaft 26: driving pulley
28: driven pulley 30: electric belt
32: suction pipe 34: discharge pipe
36: bearing 38: fastening bolt
40: Bearing 42: Cover
44: protective cover 50: tension adjusting member
52: Distance control plate 52a: Guide ball
54: Support shaft 56: tension adjusting roller
58: Fixing bolts.

Claims (2)

A pedestal (14) which is moved in front, rear, left and right directions by a caster (12); A housing (16) vertically erected from an upper surface of the pedestal (14); A motor 18 installed on the bottom surface of the housing 16 so as to protrude outward from one side of the housing 16 and driven according to the application of a current; The rotation shaft 24 is disposed in parallel with the arrangement direction of the motor 18 in the housing 16 corresponding to the vertical direction of the motor 18 and the rotation shaft 24 is disposed in the housing 18 in the same direction as the drive shaft 20 of the motor 18. [ An impeller 22 protruding outwardly of the motor 16 and generating a suction force while being rotated by a driving force of the motor 18; A drive pulley 26 fixedly coupled to an outer end of the drive shaft 20 of the motor 18; A driven pulley (28) fixedly coupled to an outer end of the rotating shaft (24) of the impeller (22); A transmission belt 30 for transmitting the driving force of the motor 18 to the impeller 22 while being wound around the driving pulley 26 and the driven pulley 28; A suction pipe 32 having an inner end connected to the inside of the impeller housing 22a surrounding the impeller 22 and communicating with the inside of the impeller housing 22a and having an outer end protruding outside the front surface of the housing 16; And a discharge pipe (34) having an inner end connected to the inside of the side portion of the impeller housing (22a) and an outer end protruding outward from the rear side of the housing (16)
The impeller 22 is fixed to the impeller 22 by a fastening bolt 38 while being disposed inside and outside the side surface of the housing 16 corresponding to the circumference of the rotary shaft 24 of the impeller 22, A bearing 36 which is inserted and stably rotated;
A distance between the driving pulley 26 and the driven pulley 28 is adjustable in the left and right direction on the front surface of the housing 16 corresponding to the turning path of the power transmission belt 30, Wherein the vacuum cleaner further comprises a tension adjusting member for adjusting the vacuum chamber. The method according to claim 1,
The tension adjusting member 50 is provided to be adjustable in the left and right direction in a state in which it is in close contact with the front surface of the housing 16 and includes a distance control plate 52 having a guide hole 52a, )Wow;
A tension adjusting roller 56 that is rotated while pressing the transmission belt 30 from the side while being arbitrarily rotated on a support shaft 54 projecting forward from the surface of the distance adjusting plate 52;
And a fixing bolt (58) which is fitted in both guide holes (52a) on the distance adjusting plate (52) and is detachably fastened.

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