WO2020107246A1

WO2020107246A1 - Handheld suction cleaner assembly

Info

Publication number: WO2020107246A1
Application number: PCT/CN2018/117805
Authority: WO
Inventors: 吴健
Original assignee: 苏州凯丽达电器有限公司
Priority date: 2018-11-28
Filing date: 2018-11-28
Publication date: 2020-06-04

Abstract

A handheld suction cleaner assembly comprises a power portion, a dust suction portion, and a battery installed in a housing. The dust suction potion is located in front of the power portion. The battery is located behind the power portion, and provides energy to the power portion. A grip (30) is provided at a tail portion of the housing. The housing is divided into a front housing (10) and a rear housing (20). The power portion and the dust suction portion are located in the front housing (10), and the battery is located in the rear housing (20). The grip (30) is disposed at a tail portion of the rear housing (20). A tail end of the front housing (10) and a front end of the rear housing (20) are connected to each other by means of insertion. A plurality of rear housings (20) equipped with batteries are respectively provided with grips (30) of different structures and shapes, and can each be connected to the front housing (10), such that users can conveniently use different grips (30) for different occasions.

Description

Assembled handheld vacuum cleaner

Technical field

The invention relates to household products, in particular to a vacuum cleaner and its accessories.

Background technique

The vacuum cleaner has various structures and a wide range of uses. The basic working principle is as follows. The rotating shaft of the exhaust fan is equipped with a fan impeller. After being energized, the speed of the exhaust fan generates strong suction and pressure. Under the action of suction and pressure, the air is discharged at a high speed, and the air in the suction part of the front of the fan continuously replenishes the fan. The resulting air causes a transient vacuum inside the vacuum cleaner and forms a negative pressure difference with the outside atmospheric pressure. Under the effect of this pressure difference, the air containing dust is sucked in. Dust and other debris sequentially enter the dust filter bag through the carpet or floor brush, long connecting pipe, elbow, hose, and hose joint. The dust and other debris stay in the dust filter bag. After the air is purified by the filter, it is discharged from the rear of the body. Among them, the exhaust fan and the wind impeller constitute the power part of the vacuum cleaner, and the carpet or floor brush, long tube, elbow, hose, hose joint, and dust bag constitute the dust suction part. The above power part and dust suction part are installed in Inside the housing of the vacuum cleaner.

The rechargeable handheld vacuum cleaner is a kind of vacuum cleaner. It has the structure of a general vacuum cleaner. It is characterized by a small size, a battery, and a grip at the rear of the vacuum cleaner. In order to facilitate the user to move the hand-held vacuum cleaner, the battery of the hand-held vacuum cleaner is arranged at the rear part, so that the center of gravity of the vacuum cleaner is moved backward.

Summary of the invention

The technical problem solved by the present invention: the grip structure of the rechargeable handheld vacuum cleaner can be conveniently changed.

In order to solve the above technical problems, the present invention provides the following technical solution: an assembled handheld vacuum cleaner, including a power part, a dust suction part, and a battery installed in a housing, the dust suction part is located in front of the power part, and the battery is located behind the power part , The battery provides energy to the power part, the rear part of the shell is provided with a grip, the shell is divided into a front shell and a rear shell, the power part and the dust suction part are located in the front shell, and the battery is located in the rear shell. The grip is provided at the rear of the rear case, and the rear end of the front case is inserted into the front end of the rear case.

According to the above technical solution, several rear housings provided with batteries are provided with grips of different structures and shapes, which can be connected to one front housing respectively, so that users can use different grips on different occasions.

The rear end of the front case and the front end of the rear case are plugged together. The specific structure can be as follows: First, the rear end of the front case is provided with a concave shape, and the front end of the rear case is provided with an outer Convex structure, the concave shape is connected to the power part, specifically the concave shape is connected to the fan wire, the convex structure is connected to the battery, and the convex structure is connected to the battery wire, the convex structure is inserted in the concave shape, It can realize the electrical connection between the battery and the power part; secondly, the rear end of the front case is provided with a convex structure, the front end of the rear case is provided with a concave shape, the convex structure is connected to the power part, and the concave shape is connected to the battery Connected, the convex structure is inserted into the concave shape, which can realize the electrical connection between the battery and the power part.

The front shell and the rear shell of the present invention are detachably connected to facilitate users to change different grips, and the front shell and the dust suction part and power part therein are efficiently used. In addition, the front case and the rear case are detachably connected, including the detachable connection of the battery and the power part. In this way, the battery can be charged separately, and the front case can cooperate with other rear cases to continue working, which is beneficial to the user's work efficiency. improve.

BRIEF DESCRIPTION

The present invention will be further described below with reference to the drawings:

FIG. 1 is a schematic diagram of a combined structure of a front casing of a handheld vacuum cleaner and a rear casing provided with a round grip;

Figure 2 is an exploded view of Figure 1;

3 is a schematic diagram of the combined structure of the front casing of the hand-held vacuum cleaner and the rear casing provided with a handle;

Figure 4 is an exploded view of Figure 3;

5 is a schematic diagram of the front transition module 11 in FIG. 2 or FIG. 4;

6 is a schematic diagram of the locking device;

7 is a schematic view of FIG. 6 viewed from the rear of the descending device;

Figure 8 is a schematic diagram of the braking mechanism;

9 is a schematic view of the braking mechanism viewed from the rear in FIG. 8;

Figure 10 is an exploded view of the brake mechanism;

11 is a schematic diagram of the upper plate member.

Explanation of symbols in the figure:

10. Front case; 11. Front transition module; 100. Concave shape;

20. Rear housing; 21, rear transition module; 200, convex structure; 201, guide groove;

30. Grip;

40. Positioning seat; 41. Positioning groove; 42. Positioning convex portion;

50. Locking device; 51. Friction wheel; 510, inner cavity of friction wheel; 511, pivot hole of friction wheel; 512, first transmission gear; 513, second transmission gear; 514, transmission ring gear;

52. Braking mechanism;

521, base plate; 5212, upper plate piece; 5213, lower plate piece; 5214, connecting piece; 522, driving shaft; 523, driven shaft; 524, protruding assembly; 5240, toggle assembly; 525, turntable; 5250, Recessed structure; 5261, driving gear; 5262, intermediate gear; 5263, internal gear;

55. Brake parts.

detailed description

As shown in FIG. 1 or FIG. 3, an assembled handheld vacuum cleaner includes a front case 10 and a rear case 20, a power part and a vacuum part are installed in the front case, a battery is installed in the rear case, and a rear part of the rear case is provided There is a grip 30.

As shown in FIG. 2 or FIG. 4, the front end of the front housing 10 is provided with a front transition module 11, and the front end of the rear housing 20 is provided with a rear transition module 21. The front transition module is provided with a concave shape 100, and the rear transition A convex structure 200 is opened on the module. The concave shape is connected to the power part, the convex structure is connected to the battery, and the convex structure is inserted into the concave shape.

The aforementioned front case 10 can be assembled with a rear case 20 provided with grips 30 of different shapes. As shown in FIG. 1, the front case is combined with a rear case provided with a return grip; as shown in FIG. Combination of rear housing with handle grip.

The dust suction part is located in front of the power part, and the battery is located behind the power part. The battery provides energy to the power part. The exhaust fan of the power part acts to drive the fan impeller to form a pressure difference between the inside and outside of the front housing 10, and the external dust is sucked. The long connecting pipe, elbow, hose and hose joint of the dust part enter the dust filter bag.

As shown in FIG. 5, an installation cavity is opened on the inner side wall of the concave structure, and a locking device 50 is provided in the installation cavity. As shown in FIG. 6, the locking device includes a friction wheel 51, a braking mechanism 52 and a braking member 55. The friction wheel protrudes from the side wall of the concave structure and partially enters the concave structure, the braking mechanism is connected to the friction wheel, and the braking member is connected to the braking mechanism. The convex structure 200 is inserted into the concave structure, the outer side wall of the convex structure is in contact with the friction wheel, and drives the friction wheel to rotate, the rotation of the friction wheel drives the action of the braking mechanism, and the braking mechanism drives The braking member can be in frictional contact with the friction wheel.

6-11, the braking mechanism 52 includes a base plate 521, a driving shaft 522, and a driven shaft 523; the driving shaft is provided at the bottom of the base plate, the driving shaft is connected to the power relay assembly, the power relay assembly and the protruding assembly 524 connection, the power relay component drives the protruding component to rotate in a circular motion path; the driven shaft is provided on the top of the base plate, the driven shaft is provided with a rotary disk 525, and the rotary disk is provided with a concave structure 5250; The center of rotation of the protruding component deviates from the center of rotation of the turntable; the top of the protruding component is provided with a toggle component 5240, and the toggle component that rotates with the protruding component can cooperate with the concave structure.

The driving shaft is driven, and the power relay component drives the protruding component to move. When the distance between the protruding component and the turntable is close, the toggle component fits into the concave structure, and drives the turntable and the driven shaft to rotate synchronously with it. When the protruding component is gradually away from the turntable, the toggle component is separated from the concave structure, the protruding component continues to rotate while the turntable and the driven shaft are stationary.

Regarding the braking mechanism 52, the braking member 55 is mounted on the driven shaft 523, the friction wheel 51 is connected to the driving shaft 522, the friction wheel is provided with a circular inner cavity 510, and the braking mechanism 52 is located in the inner cavity, and the stopper 55 is located in the inner cavity, the center of the inner cavity deviates from the rotation center of the stopper 55.

Regarding the braking mechanism 52, the concave structure 5250 includes a plurality of grooves, which are evenly distributed along the circumferential direction of the turntable 525.

Regarding the braking mechanism 52, the power relay assembly includes a driving gear 5261, a relay gear 5262, and an internal gear 5263; the internal gear is pivotally connected to the base plate 521, the driving gear is installed on the driving shaft 522, and the protruding assembly 524 is installed on the internal gear On the outer side wall, the driving gear drives the internal gear to rotate through the intermediate gear.

Regarding the braking mechanism 52, the base plate 521 includes an upper plate member 5212 and a lower plate member 5213, and the upper plate member and the lower plate member are connected by a connecting member 5214. The internal gear 5263 is pivotally connected to the upper plate 5212 and is located between the upper and lower plates. Wherein, the internal gear includes a pivoting portion and a gear portion, the pivoting portion is pivotally connected with the upper plate member, and the gear portion meshes with the intermediate gear. The protrusion assembly 524 is installed on the outer side wall of the internal gear. The driving gear and the intermediate gear are mounted on the upper plate 5212.

Regarding the braking mechanism 52, the connection relationship between the friction wheel 51 and the driving shaft 522 is as follows: the center of the friction wheel is provided with a pivot hole 511, and the friction wheel is pivotally connected to the periphery of the lower plate member 5213 through the pivot hole The shaft 522 is pivotally connected in the central hole of the lower disc member, and passes through the central hole of the lower disc member, a first transmission gear 512 is installed on the driving shaft, a second transmission gear 513 is installed on the lower disc member, and the friction wheel is pivotally connected A transmission ring gear 514 is fixed in the hole 511, the first transmission gear and the second transmission gear are located in the transmission ring gear, the first transmission gear meshes with the second transmission gear, the second transmission gear meshes with the transmission ring gear, and the friction wheel rotates, The driving shaft is driven to rotate through the transmission ring gear, the second transmission gear and the first transmission gear. The lower plate member is provided with a fixed column, and the lower plate member is fixedly installed in the second installation hole through the fixed column, that is, the entire locking device 50 is installed in the second installation hole on the side wall of the sliding groove 11 through the fixed column Inside.

Regarding the braking mechanism 52, the number of the grooves is several, and the toggle component performs a circular rotation movement. Since the rotation center of the protruding component deviates from the rotation center of the turntable, the toggle component can be caught in the groove and resist the recess On the side wall of the groove, the turntable is driven to rotate, and then separated from the groove. The toggle component is engaged with any groove to disengage, and the turntable rotates at a fixed angle. Specifically, if the number of grooves is two, the toggle component is engaged with any groove to disengage, and the turntable rotates to a fixed angle of one One hundred and eighty degrees; if the number of grooves is three, the toggle assembly is engaged with any one of the grooves, and the fixed angle of the turntable rotation is one hundred and twenty degrees. That is, the toggle assembly is engaged with any of the grooves to disengage, the fixed angle of rotation of the turntable is 360 degrees divided by the number of grooves, wherein several grooves are evenly distributed along the circumferential direction of the turntable. In the above design, the rotating toggle assembly can sequentially cooperate with several grooves to drive the turntable to rotate regularly and intermittently.

According to the design of the above locking device 50, during the process of inserting the convex structure 200 into the concave shape 100, the convex structure 200 drives the friction wheel 51 to rotate, the friction wheel drives the driving shaft 522 to rotate, and the driving shaft drives the driven shaft 523 intermittently During rotation, the driven shaft drives the brake 55 on it intermittently. When the convex structure 200 and the concave shape 100 fit into place, the end of the braking member contacts the inner side wall of the inner cavity 510 of the friction wheel, friction brakes the friction wheel, and stops the rotation of the friction wheel. Specifically, since the center of the driven shaft 523 deviates from the center of the friction wheel 51, initially, the end of the brake member is not in contact with the side wall of the inner cavity 510 of the friction wheel, and the friction wheel rotates at a certain angle, such as one revolution, to drive the brake member Rotating a certain angle, such as ninety degrees, the end of the braking member rotating ninety degrees gradually approaches and frictionally contacts the side wall of the inner cavity 510 of the friction wheel, the friction wheel is braked, and at the same time, the convex structure 200 is inserted into place.

According to the working mechanism of the locking device 50 described above, the locking device can play a role in positioning the cooperation between the concave shape 100 and the convex structure 200 to prevent the front case 10 and the rear case 20 from being separated. When the convex structure 200 is pulled out from the concave shape 100, the friction wheel rotates in reverse, and the brake rotates in reverse, no longer in contact with the friction wheel, so that the front case and the rear case can be smoothly separated.

As shown in FIG. 2, a guide groove 201 is formed on the outer side wall of the convex structure 200, and a friction wheel 51 is fitted in the guide groove. Rubber material can be provided in the guide groove to increase the friction between the guide groove and the friction wheel.

With reference to FIGS. 3 and 4, the end of the grip 30 is fitted with a positioning seat 40. The positioning seat can be fixed on the indoor wall. The end of the grip is provided with a slot, and a first magnet is provided in the slot. A positioning groove 41 is provided, a positioning convex portion 42 is provided in the middle of the positioning groove, and a second magnet is provided in the positioning convex portion; the end of the grip is fitted in the positioning groove, and the positioning convex portion is engaged with the In the card slot, the first magnet and the second magnet attract each other. When the vacuum cleaner is idle, the end of the grip fits on the positioning seat, and the vacuum cleaner is placed.

Claims

An assembled hand-held vacuum cleaner includes a power part, a dust suction part, and a battery installed in a housing. The dust suction part is located in front of the power part, and the battery is located behind the power part. The battery provides energy to the power part. There is a grip (30), characterized in that the casing is divided into a front casing (10) and a rear casing (20), the power part and the dust suction part are located in the front casing, and the battery is located in the rear casing, The grip is provided at the rear of the rear case, and the rear end of the front case is inserted into the front end of the rear case.
An assembled handheld vacuum cleaner according to claim 1, wherein the rear end of the front housing (10) is provided with a concave shape (100), and the front end of the rear housing (20) is provided with an outer convex structure ( 200), the concave shape is connected with the power part, the convex structure is connected with the battery, and the convex structure is inserted into the concave shape.
An assembled handheld vacuum cleaner according to claim 1, wherein the rear end of the front casing is provided with an outer convex structure, and the front end of the rear casing is provided with an inner concave shape, the outer convex structure is connected to the power part, the inner The concave shape is connected with the battery, and the convex structure is inserted into the concave shape.
An assembled hand-held vacuum cleaner according to claim 2, characterized in that the rear end of the front housing (10) is provided with a front transition module (11), and the front end of the rear housing (20) is provided with a rear transition module ( 21), the concave shape (100) is formed on the front transition module, and the convex structure (200) is provided on the rear transition module;

An installation cavity is opened on the inner wall of the concave shape, and the installation cavity is provided with a locking device (50). The locking device includes a friction wheel (51), a braking mechanism (52), and a braking member (55). The friction wheel protrudes from the concave-shaped side wall and partially enters the concave shape, the braking mechanism is connected to the friction wheel, and the braking member is connected to the braking mechanism;

The convex structure (200) is inserted into the concave shape, the outer side wall of the convex structure contacts the friction wheel, and drives the friction wheel to rotate, and the rotation of the friction wheel drives the braking mechanism to act and brake The mechanism drives the braking member, and the braking member can be in frictional contact with the friction wheel.
An assembled handheld vacuum cleaner according to claim 4, wherein a guide groove (201) is provided on the outer side wall of the convex structure (200), and the friction wheel (51) is fitted in the guide groove.
An assembled hand-held vacuum cleaner according to claim 1, characterized in that: the end of the grip (30) is fitted with a positioning seat (40), the end of the grip is provided with a clamping slot, and a first slot is provided in the clamping slot A positioning groove (41) is provided on the positioning seat of the magnet, a positioning protrusion (42) is provided in the middle of the positioning groove, and a second magnet is provided in the positioning protrusion; the end of the grip fits in the positioning groove, The positioning protrusion is engaged in the locking groove, and the first magnet and the second magnet attract each other.