CN216364911U - Dust collector supporting leg device and dust collector - Google Patents

Abstract

The application provides a dust collector supporting leg device and a dust collector. Wherein, dust catcher landing leg device includes: a vacuum cleaner leg assembly for a vacuum cleaner having a base and an upright, comprising: the supporting leg assembly is arranged on the base and comprises at least one supporting leg, and the supporting leg is movably connected with the base; the driving assembly is arranged on the base and is in transmission connection with the supporting legs so as to drive the supporting legs to move between a first position and a second position relative to the base; wherein there is a height difference between the first position and the second position. Among the technical scheme of this application, the landing leg can stretch out and retrieve the in-process and realize the lift adjustment of height to reduce the friction between landing leg and the ground, can prevent effectively that floor surface from being by the fish tail. When the dust collector is used on soft materials such as carpets, the liftable supporting legs can effectively reduce the shaking, and the stability is favorably improved.

Description

Dust collector supporting leg device and dust collector

Technical Field

The application relates to the technical field of dust collectors, in particular to a dust collector supporting leg device and a dust collector.

Background

At present, handheld push rod formula dust catcher has the small and exquisite, the light in weight's of size characteristics, and for traditional dust catcher, it is comparatively convenient to use and carry, but this type dust catcher also exists not enoughly, for example can't stand, needs the whole handheld of user in the use, and is comparatively hard. In order to alleviate the above problems, the prior art provides a dust collector with supporting legs, which extends out to contact with the ground through the rotation of the supporting legs, so that the dust collector can stand, but the supporting legs in the scheme can generate friction with the ground in the rotation process, thereby easily causing floor surface scratch, and the dust collector is easy to shake when used on a carpet, and has low stability.

SUMMERY OF THE UTILITY MODEL

According to an embodiment of the present application, it is intended to at least improve one of technical problems existing in the prior art or the related art.

To this end, it is an object according to embodiments of the present application to provide a cleaner leg device.

It is another object of embodiments according to the present application to provide a vacuum cleaner.

To achieve the above object, an embodiment according to a first aspect of the present application provides a leg device for a vacuum cleaner having a base and an upright, comprising: the supporting leg assembly is arranged on the base and comprises at least one supporting leg, and the supporting leg is movably connected with the base; the driving assembly is arranged on the base and is in transmission connection with the supporting legs so as to drive the supporting legs to move between a first position and a second position relative to the base; wherein there is a height difference between the first position and the second position.

According to an embodiment of the first aspect of the present application, a vacuum cleaner leg assembly comprises a leg assembly and a drive assembly. The landing leg subassembly sets up on the base, through the landing leg with base swing joint for the landing leg can play the supporting role to the dust catcher when being in the extended state, makes the dust catcher realize standing. Through set up in the drive assembly of landing leg transmission connection to for the landing leg provides drive power, make the landing leg can move between the first position and the second position, realize the extension and the withdrawal of landing leg. Wherein, through limiting the first position to have the difference in height between the second position, make the height of landing leg when the first position is higher than the height when the second position is different, so that the landing leg realizes going up and down in the motion. The legs are at a lower height when in the extended position to facilitate contact with the floor for support, and are retractable during use of the cleaner.

It should be noted that the first position and the second position may be any one of the positions that is located at a relatively high height, and the other one of the positions that is located at a relatively low height.

The dust collector supporting leg device in the scheme has the advantages that the supporting legs can achieve height lifting adjustment in the process of extending out and retracting, friction between the supporting legs and the ground can be reduced, and scratching on the surface of the floor can be effectively prevented. When the dust collector is used on soft materials such as carpets, the liftable supporting legs can effectively reduce the shaking, and the stability is favorably improved.

In addition, the dust collector leg device in the above technical solution provided in the embodiment of the present application may further have the following additional technical features:

in the above technical solution, the leg assembly further includes: the supporting leg rotating shaft is arranged on the base and extends towards the upper part of the base; the landing leg cover is located on the landing leg pivot, and the axis of rotation of landing leg inclines to the side of keeping away from the pole setting on the base to make the landing leg rotate the in-process between primary importance and second place and realize going up and down.

In this embodiment, the leg assembly includes a leg and a leg pivot shaft. The support leg rotating shaft extends upwards from the base, and the support leg rotating shaft are matched to form rotary connection so that the support leg can rotate relative to the base. Wherein, the landing leg and landing leg pivot clearance fit to the rotation of landing leg is convenient for. The rotation axis through setting up the landing leg is to keeping away from the lopsidedness of pole setting on the base for form the contained angle between the rotation plane of landing leg and the horizontal plane, and then make the landing leg rotate the in-process between primary importance and second position, can realize the lift of direction of height simultaneously.

In the above technical scheme, the central axis of the revolving shaft of the supporting leg inclines towards one side of the base far away from the vertical rod.

In the technical scheme, the central axis of the supporting leg rotating shaft inclines towards one side, far away from the vertical rod, of the base, so that when the supporting leg is sleeved on the supporting leg rotating shaft, the same inclination direction as the supporting leg rotating shaft can be kept, the rotating axis of the supporting leg is enabled to be consistent with the direction of the central axis of the supporting leg rotating shaft, and the supporting leg can be lifted in the height direction during the rotating process between the first position and the second position.

In the technical scheme, the height of the supporting leg at the first position is higher than that of the bottom surface of the base.

In the technical scheme, the height of the supporting leg in the first position is further limited to be higher than the height of the bottom surface of the base, so that the supporting leg is not in contact with the ground in the first position, the supporting leg is retracted, and the dust collector is convenient to move and use. Meanwhile, the height of the supporting leg is gradually increased in the process of rotating from the second position to the first position, and the supporting leg is separated from the ground, so that the floor is prevented from being scratched by friction generated between the supporting leg and the floor.

In the above technical solution, the driving assembly includes: the belt wheel mechanism is arranged on the base and is in transmission connection with the supporting leg; the driving piece is arranged on the vertical rod and corresponds to the transmission mechanism, and is used for driving the transmission mechanism to operate so as to drive the supporting leg to rotate.

In this solution, the drive assembly comprises a transmission mechanism and a drive member. The transmission mechanism is arranged to be in transmission connection with the supporting legs so as to transmit power to the supporting legs. The driving piece is arranged on the vertical rod in a corresponding mode with the transmission mechanism, so that the vertical rod is utilized to control the driving piece to move, the transmission mechanism is driven to operate, power is transmitted to the supporting leg, the supporting leg can rotate relative to the base, and the supporting leg can extend out or retract.

In the technical scheme, the transmission mechanism is a belt wheel mechanism and comprises a driving wheel, a driven wheel and a synchronous belt; the driving wheel is arranged on one side, close to the vertical rod, of the supporting leg rotating shaft and sleeved on the belt wheel rotating shaft on the base, the rotating axis of the driving wheel is parallel to the rotating axis of the supporting leg, and a first upright post is arranged on the bottom surface of the driving wheel; the driven wheel is sleeved on the supporting leg rotating shaft and is fixedly connected with the supporting leg; the driving piece is a swing arm which is connected to one side of the vertical rod facing the driving wheel, extends towards the lower part of the driving wheel and is arranged corresponding to the first upright post; wherein, the pole setting rotates with the base to be connected, and the swing arm can rotate along with the pole setting to promote first stand and action wheel and rotate, rotate to the drive landing leg by the primary importance to the second place.

In the technical scheme, the transmission mechanism is a belt wheel mechanism and specifically comprises a driving wheel, a driven wheel and a synchronous belt meshed with the driving wheel and the driven wheel; the driving piece is specifically a swing arm. Specifically, the driving wheel is positioned on one side of the supporting leg rotating shaft close to the vertical rod, the driven wheel is sleeved on the supporting leg rotating shaft and is fixedly connected with the supporting leg, and the swing arm is connected to one side of the vertical rod facing the driving wheel; the rotation axis of the driving wheel is parallel to the rotation axis of the supporting leg, so that the driving wheel, the driven wheel and the supporting leg are in the same inclination direction; the bottom surface of action wheel is equipped with first stand, and the swing arm extends to the below of action wheel to correspond the setting with first stand, in order to promote first stand and action wheel rotation through the rotation of swing arm. Because the upright post of the dust collector is rotationally connected with the base, the swing arm can be driven to swing by operating the upright post, and when the swing arm is contacted with the first upright post, the first upright post and the driving wheel are pushed to rotate, so that power output is realized; the driving wheel drives the driven wheel to rotate through the synchronous belt, power transmission is achieved, the supporting legs are driven to rotate, and the supporting legs are made to extend out or retract.

In the above technical solution, the driving assembly further includes: the second upright post is arranged on the bottom surface of the driving wheel; the limiting block is arranged on the base and below the driving wheel, corresponds to the second upright column and is used for limiting the second upright column; wherein, the landing leg moves to the second position when the second stand column rotates to abut against the limiting block.

In this technical scheme, the bottom surface of action wheel still is equipped with the second stand, corresponds on the base and is equipped with the stopper, is located the rotation route of second stand through setting up the stopper to rotate along with the action wheel at the second stand and when leaning on with the stopper counterbalance, block second stand and action wheel continuation rotation through the stopper, realize spacingly. When the second upright post abuts against the limiting block, the supporting leg is located at the second position, so that the running stroke of the supporting leg is limited between the first position and the second position. In addition, in the assembling process, the second upright post can be tightly attached to the limiting block, and the positioning effect can be achieved.

In the above technical solution, the driving assembly further includes: the return torsion spring is sleeved on the belt wheel rotating shaft, one end of the return torsion spring is abutted to the first stand column, the other end of the return torsion spring is abutted to the limiting block, and the return torsion spring is used for driving the first stand column to reset so that the supporting leg rotates from the second position to the first position.

In the technical scheme, a return torsion spring is sleeved on a belt wheel rotating shaft of the driving wheel and is positioned below the driving wheel. Through the both ends that set up the reset torsion spring respectively with stopper and first stand counterbalance to when the swing arm promotes first stand and action wheel and rotates, form the compression to the reset torsion spring, after the pressure of swing arm is cancelled, the reset torsion spring can drive first stand and action wheel antiport through the spring action, and realize reseing, and then drive the landing leg and rotate to first position by the second position, realize retrieving the action.

In the above technical scheme, the leg support is provided with the matching hole which is an inclined hole, and the leg support is sleeved on the leg support rotating shaft through the matching hole, so that the rotating axis of the leg support inclines to one side of the base, which is far away from the vertical rod.

In the technical scheme, the supporting legs are provided with matching holes matched with the supporting leg rotating shafts, and the supporting legs are sleeved on the supporting leg rotating shafts through the matching holes so as to realize the rotating matching between the supporting legs and the supporting leg rotating shafts. Through setting up the mating holes for the inclined hole, for example, when the landing leg level was placed, the central axis of mating holes inclines to the one side that is close to the pole setting for when the landing leg was located the landing leg through the mating holes cover and is changeed epaxially, the central axis perpendicular to base of mating holes, and the axis of rotation of landing leg then to the one side slope of keeping away from the pole setting, and then when making the landing leg rotate between primary importance and second place, can realize high elevating movement simultaneously.

In the above technical scheme, the bottom surfaces of the supporting legs are inclined surfaces or sawtooth surfaces, so that the rotating axes of the supporting legs incline towards one side of the base, which is far away from the vertical rod.

In this technical scheme, the bottom surface through with the landing leg sets up to inclined plane or serrated surface for the landing leg is whole to be the slope form for the base, makes the axis of rotation of landing leg to the one side slope of keeping away from the pole setting, thereby at the landing leg rotation in-process, drives the landing leg through the guide effect of the structure of inclined plane or serrated surface and realizes elevating movement in the direction of height.

In the above technical solution, an inclination angle of the rotation axis of the leg is in a range of 1 ° to 10 ° in the lateral direction of the base.

In the technical scheme, the height lifting amplitude of the supporting leg in the rotating process is kept in a proper range by limiting the inclination angle of the rotating axis of the supporting leg in the transverse direction of the base, namely in the side direction of the base. Specifically, the inclination angle is in the range of 1 ° to 10 °, so that the leg can achieve the functions of extending support and retracting, and simultaneously, the occupied space range is reduced as much as possible, so as to prevent interference with other components or the ground. Further, the inclination angle may be in the range of 2 ° to 5 °.

In the technical scheme, the number of the supporting leg assemblies is two, and the supporting leg assemblies are respectively arranged on two sides of the vertical rod; the two groups of driving assemblies are respectively arranged on two sides of the vertical rod, and each group of driving assemblies is in transmission connection with the supporting legs on the same side; wherein, the inclination directions of the rotation axes of the supporting legs positioned at the two sides of the vertical rod are opposite.

In this technical scheme, set up a set of landing leg subassembly and a set of drive assembly respectively through the position that lies in the pole setting both sides on the base to the horizontal space of make full use of base increases the quantity of landing leg, so that the part homoenergetic that lies in the both sides of pole setting on the base can support through the landing leg that corresponds, makes the dust catcher stress distribution under the state of standing comparatively even, is favorable to improving stability simultaneously.

In an embodiment of the second aspect of the present application there is provided a vacuum cleaner comprising: a base; the bottom end of the vertical rod is rotatably connected with the base; the leg unit of a vacuum cleaner as described in any one of the embodiments of the first aspect above, provided on the base.

In accordance with an embodiment of the second aspect of the present application, a vacuum cleaner comprises a base, an upright and a cleaner leg arrangement as described in any one of the embodiments of the first aspect above. The base is used for contacting with the ground and can be connected with a dust suction channel to perform dust suction operation. The upright rod and the dust collector supporting leg device are arranged on the base, and the upright rod is rotatably connected with the base so as to be matched with the handheld height of a user and be convenient to operate. The supporting legs of the supporting leg assembly can move between a first position and a second position, and simultaneously realize height lifting so as to be in contact with the ground at a position with relatively low height, so that the base and the upright post are supported, and the self-standing state of the dust collector is realized; when the moving and using operation is needed, the supporting legs can move to a position with a relatively high height, and the retraction is realized. The supporting legs are gradually lowered in height and are in contact with the ground in the extending process, and the supporting legs are gradually raised in height and are separated from the ground in the retracting process, so that the floor surface can be prevented from being scratched due to friction between the supporting legs and the ground. In addition, when the dust collector is used on soft materials such as carpets, the shaking of the supporting legs can be reduced, and the stability of the supporting legs is improved.

In addition, the dust collector in the scheme also has all the beneficial effects of the dust collector leg device in any one embodiment of the first aspect, and the description is omitted here.

Additional aspects and advantages of the embodiments of the application will be set forth in part in the description which follows or may be learned by practice of the application.

Drawings

The above and/or additional aspects and advantages of embodiments of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 illustrates a partial schematic view of a vacuum cleaner according to an embodiment of the present application;

FIG. 2 illustrates a partial schematic view of a vacuum cleaner according to an embodiment of the present application;

FIG. 3 shows a schematic view of a vacuum cleaner according to an embodiment of the present application;

FIG. 4 shows a schematic view of a vacuum cleaner according to an embodiment of the present application;

FIG. 5 shows a schematic view of a base according to an embodiment of the present application;

FIG. 6 shows a schematic view of a suction cleaner leg assembly according to the present application;

FIG. 7 shows a schematic view of a suction cleaner leg assembly according to the present application;

FIG. 8 shows a schematic view of a leg according to an embodiment of the present application;

FIG. 9 shows a schematic view of a leg and base according to an embodiment of the present application;

FIG. 10 illustrates a partial schematic view of a vacuum cleaner according to an embodiment of the present application.

Wherein, the correspondence between the reference numbers and the names of the components in fig. 1 to 10 is as follows:

1 dust collector leg device, 11 leg components, 111 leg, 112 leg rotating shaft, 113 matching holes, 12 driving components, 121 belt wheel mechanisms, 1211 driving wheels, 1212 driven wheels, 1213 synchronous belts, 1214 belt wheel rotating shafts, 1215 first upright post, 1216 second upright post, 1217 limiting blocks, 1218 reset torsion springs, 122 swing arms, 2 dust collectors, 21 bases, 22 upper covers, 23 vertical rods, 231 universal joints and 232 vertical rod bodies.

Detailed Description

In order that the above objects, features and advantages of the embodiments according to the present application may be more clearly understood, embodiments according to the present application will be described in further detail below with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth to provide a thorough understanding of embodiments according to the present application, however, embodiments according to the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.

A leg unit for a cleaner and a cleaner according to some embodiments of the present application will be described with reference to fig. 1 to 10.

Example one

In the present embodiment, a leg unit 1 for a vacuum cleaner is provided, as shown in figures 1 and 2, for a vacuum cleaner 2 having a base 21 and an upright 23.

The cleaner leg assembly 1 comprises a leg assembly 11 and a drive assembly 12. The leg assembly 11 is arranged on a base 21 of the dust collector 2; the legs 111 of the leg assembly 11 are movably connected to the base 21 and are capable of moving relative to the base 21 to extend and retract. The drive assembly 12 is drivingly connected to the leg 111 to power the leg 111, and the drive leg 111 moves between a first position and a second position. Wherein, there is a difference in height between the first position and the second position, that is, one of the first position and the second position is relatively high, and the other is relatively low, so that the height of the leg 111 in the first position is different from the height of the leg 111 in the second position, and the leg 111 can be lifted and lowered during the movement. The legs 111 are positioned at a lower height when in the extended position (as shown in figure 3) to provide support for contact with the floor surface to enable the cleaner 2 to stand, and the legs 111 are retracted when the cleaner 2 is in use (as shown in figure 4).

In the first position and the second position, the height of the first position may be higher than that of the second position, or the height of the second position may be higher than that of the first position. Further, the number of leg assemblies 11 may be one or more sets, and accordingly, the number of drive assemblies 12 matches the number of leg assemblies 11.

In the dust collector leg device 1 of the embodiment, the height of the leg 111 can be adjusted in the extending and retracting process, so that the friction between the leg 111 and the ground is reduced, and the floor surface can be effectively prevented from being scratched. When the dust collector 2 is used on soft materials such as carpets, the liftable supporting legs 111 can effectively reduce the shaking, which is beneficial to improving the stability.

Example two

The embodiment provides a dust collector supporting leg device 1 which is further improved on the basis of the first embodiment.

As shown in fig. 1 to 5, the leg assembly 11 includes a leg 111 and a leg pivot shaft 112. The leg rotating shaft 112 is arranged on the base 21 and extends upwards from the base 21; the legs 111 are coupled to the leg pivot shafts 112 to form a pivotal connection, and the legs 111 are capable of pivoting relative to the base 21 to provide extending and retracting motions. Wherein the leg 111 is in clearance fit with the leg rotation shaft 112 to facilitate the rotation of the leg 111.

The rotation axis of the leg 111 is inclined to the side of the base 21 away from the upright 23, for example, the rotation axis of the leg 111 on the left side is inclined to the left side, and the rotation axis of the leg 111 on the right side is inclined to the right side, so that an inclined angle is formed between the rotation axis of the leg 111 and a longitudinal plane perpendicular to the horizontal plane, and an included angle is also formed between the rotation plane of the leg 111 and the horizontal plane, and the included angle is the same as the inclined angle. And then make landing leg 111 rotate the in-process between first position and second position, can realize the elevating movement of direction of height simultaneously.

EXAMPLE III

The embodiment provides a dust collector supporting leg device 1 which is further improved on the basis of the second embodiment.

As shown in fig. 1 to 5, the mounting surface of the leg rotation shaft 112 is a slope surface such that the central axis of the leg rotation shaft 112 is inclined toward the side of the base 21 away from the upright 23; when the leg 111 is sleeved on the leg rotating shaft 112, the rotating axis of the leg 111 is consistent with the direction of the central axis of the leg rotating shaft 112 and can keep the same inclination direction as the leg rotating shaft 112, and an inclination angle is formed between the rotating axis of the leg 111 and a longitudinal plane perpendicular to the horizontal plane, such as an included angle a in fig. 5. In the process of rotating the supporting legs 111 between the first position and the second position, the lifting movement in the height direction can be realized at the same time.

Further, the height of the leg 111 in the first position is higher than the height of the bottom surface of the base 21 (as shown in fig. 4), that is, the height of the first position is higher than the height of the second position, when the leg 111 moves to the first position, a gap exists between the leg 111 and the ground, so that the leg 111 does not contact with the ground, the leg 111 is retracted, and the cleaner 2 is convenient to move and use. The legs 111 are gradually raised in height and separated from the floor during the rotation from the second position to the first position, so as to prevent the floor from being scratched by the friction generated between the legs 111 and the floor.

Example four

The embodiment provides a dust collector supporting leg device 1 which is further improved on the basis of the third embodiment.

As shown in fig. 1, 5 and 6, the drive assembly 12 includes a transmission mechanism and a drive member. The transmission mechanism is arranged on the base 21 and is in transmission connection with the supporting leg 111 so as to transmit power to the supporting leg 111. The vertical rod 23 is provided with a driving part corresponding to the transmission mechanism, the driving part can be controlled to move through the vertical rod 23 to drive the transmission mechanism to operate, power is transmitted to the supporting leg 111, and then the supporting leg 111 can rotate relative to the base 21, so that the extending or retracting action of the supporting leg 111 is realized.

Further, the transmission mechanism is a pulley mechanism 121, and specifically includes a driving pulley 1211, a driven pulley 1212 and a synchronous belt 1213, and the synchronous belt 1213 is engaged with the driving pulley 1211 and the driven pulley 1212; the driving member is specifically a swing arm 122, and is disposed on the side of the vertical rod 23. Specifically, the driving wheel 1211 is located on a side of the leg rotating shaft 112 close to the upright 23, and is sleeved on the pulley rotating shaft 1214 of the base 21; the driven wheel 1212 is sleeved on the leg rotation shaft 112 and is fixedly connected with the leg 111; the rotation axis of the driving wheel 1211 is parallel to the rotation axis of the leg 111, so that the driving wheel 1211 and the driven wheel 1212 and the leg 111 are tilted in the same direction, that is, the rotation axis of the driving wheel 1211 forms an angle of inclination with a longitudinal plane perpendicular to the horizontal plane, such as an included angle b in fig. 5, and the included angle b is the same as the included angle a. Wherein, the bottom surface of the driving wheel 1211 is provided with a first upright post 1215, the swing arm 122 extends to the lower part of the driving wheel 1211 and is arranged corresponding to the first upright post 1215; since the upright 23 of the vacuum cleaner 2 is rotatably connected to the base 21, when the swing arm 122 rotates along with the upright 23, the swing arm 122 contacts the first upright 1215 and pushes the first upright 1215 and the driving wheel 1211 to rotate, so as to realize power output, for example, when the upright 23 rotates to be perpendicular to the ground, the swing arm 122 pushes the first upright 1215 and the driving wheel 1211 to rotate, so that the support leg 111 extends to the second position for supporting; the driving wheel 1211 drives the driven wheel 1212 to rotate through the synchronous belt 1213, so that power transmission is realized; the leg 111 is driven by the driven wheel 1212 to rotate, thereby realizing the extending or retracting action.

EXAMPLE five

The embodiment provides a dust collector supporting leg device 1 which is further improved on the basis of the fourth embodiment.

As shown in fig. 1, fig. 5 and fig. 6, a second upright 1216 is further disposed on the bottom surface of the driving wheel 1211, and correspondingly, a stop block 1217 is disposed on the base 21, and the stop block 1217 is located on the rotation path of the second upright 1216. When the driving wheel 1211 is driven to rotate by the swing arm 122, the driving leg 111 rotates from the first position to the second position, and at the same time, the second upright 1216 rotates with the driving wheel 1211, and when the second upright 1216 abuts against the limit block 1217, the limit block 1217 blocks the second upright 1216 and the driving wheel 1211 from continuing to rotate, thereby limiting the leg 111. When the second upright 1216 abuts against the stop 1217, the leg 111 is in the second position, so that the operation stroke of the leg 111 is limited between the first position and the second position, and at this time, the leg 111 can contact and form a support with the floor, so that the cleaner 2 can stand by itself.

EXAMPLE six

The embodiment provides a dust collector supporting leg device 1 which is further improved on the basis of the fifth embodiment.

As shown in fig. 1 and 5-7, the drive assembly 12 further includes a return torsion spring 1218 for returning the pulley mechanism 121 and the legs 111. Specifically, the return torsion spring 1218 is sleeved on the pulley rotating shaft 1214 of the driving wheel 1211, and the return torsion spring 1218 is located below the driving wheel 1211. Two ends of the reset torsion spring 1218 are respectively abutted against the limit block 1217 and the first upright post 1215, when the swing arm 122 pushes the first upright post 1215 and the driving wheel 1211 to rotate, the reset torsion spring 1218 is compressed, and the reset torsion spring 1218 has a movement tendency of recovering to the original state; when the pressure of the swing arm 122 is released, for example, when the swing arm 122 is separated from the first upright 1215, the reset torsion spring 1218 can drive the first upright 1215 and the driving wheel 1211 to rotate in opposite directions through the elastic force, so as to achieve the reset, and further drive the supporting leg 111 to rotate from the second position to the first position, thereby achieving the retracting action.

EXAMPLE seven

The embodiment provides a dust collector supporting leg device 1 which is further improved on the basis of the second embodiment.

Another implementation of the leg assembly 11 is provided in this embodiment. Specifically, as shown in fig. 1, 8 and 9, the leg 111 is provided with a fitting hole 113 that matches with the leg rotation shaft 112, and the fitting hole 113 is an inclined hole, for example, when the leg 111 is placed horizontally, the central axis of the fitting hole 113 is inclined toward the side near the upright 23 (as shown in fig. 8); the leg pivot shaft 112 is disposed perpendicular to the base 21, and the leg 111 is sleeved on the leg pivot shaft 112 through the fitting hole 113 and forms a clearance fit with the leg pivot shaft 112, so that the leg 111 and the leg pivot shaft 112 form a rotation fit. At this time, the direction of the central axis of the engaging hole 113 is the same as the direction of the central axis of the leg rotating shaft 112, and the engaging hole 113 is an inclined hole perpendicular to the base 21, so that the rotating axis of the leg 111 is inclined toward the side away from the upright 23, so that an inclined angle is formed between the rotating axis of the leg 111 and the leg rotating shaft 112, as shown by an included angle c in fig. 9, and further, when the leg 111 rotates between the first position and the second position, the lifting motion in height can be realized at the same time.

Example eight

The embodiment provides a dust collector supporting leg device 1 which is further improved on the basis of the second embodiment.

Another implementation of the leg assembly 11 is provided in this embodiment. The bottom surface of the leg 111 is formed as a slope or a serration so that the entire leg 111 is inclined with respect to the base 21 such that the rotation axis of the leg 111 is inclined toward a side away from the upright 23. In the rotation process of the supporting leg 111, the supporting leg 111 can be guided by the structure of the inclined plane or the sawtooth plane, and then the supporting leg 111 is driven to realize the lifting motion in the height direction.

Example nine

The embodiment provides a dust collector supporting leg device 1 which is further improved on the basis of the second embodiment.

As shown in fig. 1 and 5, the inclination angle of the rotation axis of the leg 111 in the lateral direction of the base 21 is defined, that is, the inclination angle is maintained within an appropriate angle range in the lateral direction of the base 21, so that the height rise and fall amplitude of the leg 111 during the rotation is maintained within an appropriate range.

Specifically, the inclination angle is in the range of 1 ° to 10 °. At this time, the leg 111 not only can perform the functions of extending, supporting and retracting, but also can reduce the space occupied during the rotation of the leg 111 as much as possible to prevent the leg 111 from interfering with other parts or the ground.

Further, the inclination angle can be in the range of 2-5 degrees, and the effect is better.

Example ten

The embodiment provides a dust collector supporting leg device 1 which is further improved on the basis of the first embodiment.

As shown in fig. 1 to 4, the number of leg assemblies 11 and drive assemblies 12 is two. A group of supporting leg assemblies 11 and a group of driving assemblies 12 are respectively arranged at the positions, located at the two sides of the vertical rod 23, on the base 21, so that the transverse space of the base 21 can be fully utilized, and the number of the supporting legs 111 is increased. When the vacuum cleaner 2 is in a standing state, the parts of the base 21 on the two sides of the upright 23 can be supported by the corresponding support legs 111, so that the stress distribution of the base 21 is uniform, and the stability is improved.

The following provides a specific embodiment of the above-described leg device 1 for a vacuum cleaner:

in the present embodiment, a leg assembly 1 for a vacuum cleaner 2 having a base 21 and an upright 23 is provided.

As shown in fig. 1, 2 and 10, the upright 23 of the vacuum cleaner 2 includes an upright body 232 and a universal joint 231, the upright body 232 is rotatably connected with the base 21 through the universal joint 231 and is located at the middle of the base 21 in the transverse direction; an upper cover 22 is also arranged above the base 21. The dust collector supporting leg device 1 comprises two groups of supporting leg components 11 and two groups of driving components 12, wherein two sides of a vertical rod 23 are respectively provided with one group of supporting leg components 11 and one group of driving components 12 which are arranged on a base 21; the upper cover 22 covers the driving assembly 12, and the leg 111 of the leg assembly 11 is located outside the upper cover 22 and behind the base 21.

The legs 111 of the leg assembly 11 are movably connected to the base 21 and are capable of moving relative to the base 21 to extend and retract. The drive assembly 12 is drivingly connected to the leg 111 to power the leg 111, and the drive leg 111 moves between a first position and a second position. Wherein, there is the difference in height between first position and the second position, and the height of first position is higher than the second position for the height of landing leg 111 when the height when the first position is different with when the second position, and landing leg 111 can realize going up and down in the motion. The legs 111 are in the second position (as shown in figure 3) when in the extended position to contact the floor to form a support for standing the cleaner 2, and the legs 111 are retracted to the first position (as shown in figure 4) when the cleaner 2 is in use, wherein the legs 111 are at a greater height than the underside of the base 21 so that the legs 111 do not contact the floor for removal and use.

As shown in fig. 1 to 5, the leg assembly 11 includes a leg 111 and a leg pivot shaft 112. The leg rotating shaft 112 is arranged on the base 21 and extends upwards from the base 21; the legs 111 are coupled to the leg pivot shafts 112 to form a pivotal connection, and the legs 111 are capable of pivoting relative to the base 21 to provide extending and retracting motions. Wherein the leg 111 is in clearance fit with the leg rotation shaft 112 to facilitate the rotation of the leg 111.

The rotation axis of the leg 111 is inclined to the side of the base 21 away from the upright 23, for example, the rotation axis of the leg 111 on the left side is inclined to the left side, and the rotation axis of the leg 111 on the right side is inclined to the right side, so that an inclined angle is formed between the rotation axis of the leg 111 and a longitudinal plane perpendicular to the horizontal plane, and an included angle is also formed between the rotation plane of the leg 111 and the horizontal plane, and the included angle is the same as the inclined angle. And then make landing leg 111 rotate the in-process between first position and second position, can realize the elevating movement of direction of height simultaneously.

In one implementation of the leg assembly 11, as shown in fig. 1-5, the mounting surface of the leg pivot shaft 112 is beveled such that the central axis of the leg pivot shaft 112 is inclined toward the side of the base 21 away from the upright 23; when the leg 111 is sleeved on the leg rotating shaft 112, the rotating axis of the leg 111 is consistent with the direction of the central axis of the leg rotating shaft 112 and can keep the same inclination direction as the leg rotating shaft 112, and an inclination angle is formed between the rotating axis of the leg 111 and a longitudinal plane perpendicular to the horizontal plane, such as an included angle a in fig. 5. In the process of rotating the supporting legs 111 between the first position and the second position, the lifting movement in the height direction can be realized at the same time.

In the lateral direction of the base 21, the inclination angle of the rotation axis of the leg 111 is defined so that the height rise and fall amplitude of the leg 111 during rotation is kept within a proper range. Specifically, the inclination angle is in the range of 1 ° to 10 °. At this time, the leg 111 not only can perform the functions of extending, supporting and retracting, but also can reduce the space occupied during the rotation of the leg 111 as much as possible to prevent the leg 111 from interfering with other parts or the ground. Further, the effect is better when the inclination angle is in the range of 2 ° to 5 °.

As shown in fig. 1, 5 and 6, the drive assembly 12 includes a transmission mechanism and a drive member. The transmission mechanism is arranged on the base 21 and is in transmission connection with the supporting leg 111 so as to transmit power to the supporting leg 111. The vertical rod 23 is provided with a driving part corresponding to the transmission mechanism, the driving part can be controlled to move through the vertical rod 23 to drive the transmission mechanism to operate, power is transmitted to the supporting leg 111, and then the supporting leg 111 can rotate relative to the base 21, so that the extending or retracting action of the supporting leg 111 is realized.

Specifically, the transmission mechanism is a pulley mechanism 121, and includes a driving pulley 1211, a driven pulley 1212 and a synchronous belt 1213, and the synchronous belt 1213 is engaged with the driving pulley 1211 and the driven pulley 1212; the driving member is specifically a swing arm 122, and is disposed on the side of the vertical rod 23. Specifically, the driving wheel 1211 is located on a side of the leg rotating shaft 112 close to the upright 23, and is sleeved on the pulley rotating shaft 1214 of the base 21; the driven wheel 1212 is sleeved on the leg rotation shaft 112 and is fixedly connected with the leg 111; the rotation axis of the driving wheel 1211 is parallel to the rotation axis of the leg 111, so that the driving wheel 1211 and the driven wheel 1212 and the leg 111 are tilted in the same direction, that is, the rotation axis of the driving wheel 1211 forms an angle of inclination with a longitudinal plane perpendicular to the horizontal plane, such as an included angle b in fig. 5, and the included angle b is the same as the included angle a. Wherein, the bottom surface of the driving wheel 1211 is provided with a first upright post 1215, the swing arm 122 extends to the lower part of the driving wheel 1211 and is arranged corresponding to the first upright post 1215; since the upright 23 of the vacuum cleaner 2 is rotatably connected to the base 21, when the swing arm 122 rotates along with the upright 23, the swing arm 122 contacts the first upright 1215 and pushes the first upright 1215 and the driving wheel 1211 to rotate, so as to realize power output, for example, when the upright 23 rotates to be perpendicular to the ground, the swing arm 122 pushes the first upright 1215 and the driving wheel 1211 to rotate, so that the support leg 111 extends to the second position for supporting; the driving wheel 1211 drives the driven wheel 1212 to rotate through the synchronous belt 1213, so that power transmission is realized; the leg 111 is driven by the driven wheel 1212 to rotate, thereby realizing the extending or retracting action.

As shown in fig. 1, fig. 5 and fig. 6, a second upright 1216 is further disposed on the bottom surface of the driving wheel 1211, and correspondingly, a stop block 1217 is disposed on the base 21, and the stop block 1217 is located on the rotation path of the second upright 1216. When the driving wheel 1211 is driven to rotate by the swing arm 122, the driving leg 111 rotates from the first position to the second position, and at the same time, the second upright 1216 rotates with the driving wheel 1211, and when the second upright 1216 abuts against the limit block 1217, the limit block 1217 blocks the second upright 1216 and the driving wheel 1211 from continuing to rotate, thereby limiting the leg 111. When the second upright 1216 abuts against the stop 1217, the leg 111 is in the second position, so that the operation stroke of the leg 111 is limited between the first position and the second position, and at this time, the leg 111 can contact and form a support with the floor, so that the cleaner 2 can stand by itself.

As shown in fig. 1 and 5-7, the drive assembly 12 further includes a return torsion spring 1218 for returning the pulley mechanism 121 and the legs 111. The return torsion spring 1218 is sleeved on the pulley rotating shaft 1214 of the driving wheel 1211, and the return torsion spring 1218 is located below the driving wheel 1211. Two ends of the reset torsion spring 1218 are respectively abutted against the limit block 1217 and the first upright post 1215, when the swing arm 122 pushes the first upright post 1215 and the driving wheel 1211 to rotate, the reset torsion spring 1218 is compressed, and the reset torsion spring 1218 has a movement tendency of recovering to the original state; when the pressure of the swing arm 122 is released, for example, when the swing arm 122 is separated from the first upright 1215, the reset torsion spring 1218 can drive the first upright 1215 and the driving wheel 1211 to rotate in opposite directions through the elastic force, so as to achieve the reset, and further drive the supporting leg 111 to rotate from the second position to the first position, thereby achieving the retracting action.

In another embodiment of the leg assembly 11, as shown in fig. 1, 8 and 9, the leg 111 is provided with a fitting hole 113 matching with the leg rotation shaft 112, and the fitting hole 113 is an inclined hole, for example, when the leg 111 is horizontally placed, the central axis of the fitting hole 113 is inclined toward the side close to the upright 23 (the state shown in fig. 8); the leg pivot shaft 112 is disposed perpendicular to the base 21, and the leg 111 is sleeved on the leg pivot shaft 112 through the fitting hole 113 and forms a clearance fit with the leg pivot shaft 112, so that the leg 111 and the leg pivot shaft 112 form a rotation fit. At this time, the direction of the central axis of the engaging hole 113 is the same as the direction of the central axis of the leg rotating shaft 112, and the engaging hole 113 is an inclined hole perpendicular to the base 21, so that the rotating axis of the leg 111 is inclined toward the side away from the upright 23, so that an inclined angle is formed between the rotating axis of the leg 111 and the leg rotating shaft 112, as shown by an included angle c in fig. 9, and further, when the leg 111 rotates between the first position and the second position, the lifting motion in height can be realized at the same time.

In a third implementation of the leg assembly 11, the bottom surface of the leg 111 is a slope or sawtooth surface, so that the whole leg 111 is inclined relative to the base 21, and the rotation axis of the leg 111 is inclined to a side away from the upright 23. In the rotation process of the supporting leg 111, the supporting leg 111 can be guided by the structure of the inclined plane or the sawtooth plane, and then the supporting leg 111 is driven to realize the lifting motion in the height direction.

In the dust collector leg device 1 of the embodiment, the height of the leg 111 can be adjusted in the extending and retracting process, so that the friction between the leg 111 and the ground is reduced, and the floor surface can be effectively prevented from being scratched. When the dust collector 2 is used on soft materials such as carpets, the liftable supporting legs 111 can effectively reduce the shaking, which is beneficial to improving the stability. In addition, the quantity of landing leg subassembly 11 and drive assembly 12 in this embodiment is two sets of, can make full use of base 21's horizontal space, and when dust catcher 2 was in the state of standing, the part that lies in the both sides of pole setting 23 on the base 21 all can support through the landing leg 111 that corresponds, and base 21's atress distribution is comparatively even, is favorable to improving stability simultaneously.

It should be noted that the number of the leg assemblies 11 and the driving assemblies 12 is not limited to two in the present embodiment, and only one set of the leg assemblies 11 and one set of the driving assemblies 12 may be provided, or other numbers larger than two sets may be provided.

EXAMPLE eleven

In the present embodiment, a vacuum cleaner 2 is provided, as shown in fig. 1 to 4, the vacuum cleaner 2 includes a base 21, a vertical rod 23 and a leg device 1 of the vacuum cleaner in any one of the above embodiments.

The base 21 is used for contacting with the floor, and a dust suction passage can be connected to the base 21 for dust suction operation. The upright rod 23 and the dust collector supporting leg device 1 are arranged on the base 21, and the upright rod 23 is rotatably connected with the base 21 so as to be matched with the hand-held height of a user and be convenient to operate. The legs 111 of the leg assembly 11 are movable between a first position and a second position while achieving elevation.

When the supporting legs 111 are located at the position with a relatively low height in the first position and the second position, the supporting legs 111 contact with the ground to support the base 21 and the upright 23, so that the dust collector 2 can be in a self-standing state; when the cleaner 2 is required to be moved and operated in use, the legs 111 can be moved to a position of relatively high height between the first and second positions to effect retraction. The supporting legs 111 gradually descend to a certain height and contact with the ground in the extending process, and the supporting legs 111 gradually ascend to a certain height and are separated from the ground in the retracting process, so that the floor surface can be prevented from being scratched due to friction between the supporting legs 111 and the ground. In addition, when the vacuum cleaner 2 is used for a soft material such as a carpet, the vibration of the leg 111 can be reduced, which is advantageous for improving the stability of the leg 111.

Further, the upright 23 of the vacuum cleaner 2 includes an upright body 232 and a universal joint 231, and the upright body 232 is rotatably connected to the base 21 via the universal joint 231 and is located at the middle of the base 21 in the transverse direction.

In addition, the dust collector 2 in this embodiment has all the advantages of the dust collector leg device 1 in any one of the above embodiments, and details are not described herein.

One specific embodiment of the present application is provided below:

a dust collector supporting leg device comprises a left supporting leg, a right supporting leg, a left driving belt wheel rotating shaft, a right driving belt wheel rotating shaft, a limiting block, a left supporting leg rotating shaft, a right supporting leg rotating shaft, a swing arm, a driving synchronous belt wheel, a synchronous belt and a torsion spring. The dust collector supporting leg device is assembled on a base of the dust collector, the base is rotatably connected with the vertical rod through a universal joint, and an upper cover is further arranged above the base.

When the supporting legs are folded, a certain gap is reserved between the bottoms of the supporting legs and the ground, so that the floor can be protected, and the problem of interference between a carpet and the supporting legs can be solved. When the supporting leg is opened, the bottom of the supporting leg is flush with the ground, and the supporting function is achieved.

The inclination angles and the inclination directions of the left and right supporting leg rotating shafts and the left and right driving belt wheel rotating shafts are kept consistent so as to realize the functions of opening and descending the supporting legs and recovering and ascending the supporting legs. Meanwhile, the normal meshing of the synchronous belt and the belt wheel is ensured.

The following description will take the left leg installation as an example to describe a specific embodiment of the present embodiment. The left leg is first mounted to the left leg pivot shaft in a clearance fit. Then, the torsion spring and the driving synchronous pulley are sleeved on the left driving pulley rotating shaft, and the torsion spring is arranged below the synchronous pulley. One end of the torsion spring props against the limiting block, and the other end of the torsion spring props against the long upright post on the back of the left driving synchronous belt wheel; meanwhile, the long upright post is also used for transmitting the load of the swing arm and converting the swing into the circular motion of the left driving synchronous pulley. The short stand column on the back of the left driving synchronous pulley is mainly used for limiting and positioning during installation, and the short stand column is tightly attached to the other surface of the limiting block during installation. And finally, mounting the synchronous belt on a left driving synchronous belt wheel and a belt wheel of the left leg, wherein the left leg is retracted in the initial state during mounting.

In addition, a structure similar to a sliding claw sleeve and a push rod, an inclined plane structure, a spring and the like are arranged below the supporting leg, and the functions of descending and ascending of the supporting leg in the working (opening and recovering) process can be realized; the bottom of the supporting leg is designed into a slope, a sawtooth and other special-shaped structures, and the functions of descending and ascending of the supporting leg in the working (opening and recovering) process can be realized by matching with other mechanisms; the leg fitting hole is designed to be inclined, and the functions of descending and ascending of the leg during work (opening and recovery) can be realized.

The technical solutions according to some embodiments of the present application are described in detail above with reference to the accompanying drawings, and the support legs can achieve height adjustment during extension and retraction to reduce friction between the support legs and the ground, thereby effectively preventing the floor surface from being scratched. When the dust collector is used on soft materials such as carpets, the liftable supporting legs can effectively reduce the shaking, and the stability is favorably improved.

In embodiments according to the present application, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. Specific meanings of the above terms in the embodiments according to the present application can be understood by those of ordinary skill in the art as the case may be.

In the description of the embodiments according to the present application, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred devices or units must have a specific direction, be configured and operated in a specific orientation, and thus, should not be construed as limiting the technical aspects of the present application.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example in accordance with the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the purpose of illustrating preferred embodiments of the present application and is not intended to limit the technical solutions of the present application, and it will be apparent to those skilled in the art that various modifications and variations can be made in the technical solutions of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the technical scheme of the application shall be included in the protection scope of the application.

Claims (13)

1. A dust collector leg assembly for a dust collector having a base and an upright, comprising:

the supporting leg assembly is arranged on the base and comprises at least one supporting leg, and the supporting leg is movably connected with the base;

the driving assembly is arranged on the base and is in transmission connection with the supporting leg so as to drive the supporting leg to move between a first position and a second position relative to the base;

wherein there is a height difference between the first position and the second position.

2. The vacuum cleaner leg arrangement of claim 1, wherein the leg assembly further comprises:

the supporting leg rotating shaft is arranged on the base and extends towards the upper part of the base;

the supporting legs are sleeved on the supporting leg rotating shafts, and the rotating axes of the supporting legs incline to one side of the base far away from the vertical rods, so that the supporting legs can be lifted in the rotating process between the first position and the second position.

3. The leg device of claim 2,

the central axis of the revolving shaft of the supporting leg inclines towards one side of the base, which is far away from the upright stanchion.

4. The leg device of claim 3,

the height of the supporting leg in the first position is higher than the height of the bottom surface of the base.

5. The vacuum cleaner leg arrangement of claim 3, wherein the drive assembly comprises:

the transmission mechanism is arranged on the base and is in transmission connection with the supporting leg;

the driving piece is arranged on the vertical rod, corresponds to the transmission mechanism and is used for driving the transmission mechanism to operate so as to drive the supporting legs to rotate.

6. The leg device of claim 5,

the transmission mechanism is a belt wheel mechanism and comprises a driving wheel, a driven wheel and a synchronous belt;

the driving wheel is arranged on one side, close to the vertical rod, of the supporting leg rotating shaft and sleeved on the belt wheel rotating shaft on the base, the rotating axis of the driving wheel is parallel to the rotating axis of the supporting leg, and a first upright post is arranged on the bottom surface of the driving wheel;

the driven wheel is sleeved on the supporting leg rotating shaft and is fixedly connected with the supporting leg;

the driving piece is a swing arm and is connected to one side, facing the driving wheel, of the vertical rod, and the swing arm extends to the lower portion of the driving wheel and is arranged corresponding to the first upright post;

the vertical rod is connected with the base in a rotating mode, the swing arm can rotate along with the vertical rod and pushes the first upright post and the driving wheel to rotate so as to drive the supporting leg to rotate from the first position to the second position.

7. The vacuum cleaner leg arrangement of claim 6, wherein the drive assembly further comprises:

the second upright column is arranged on the bottom surface of the driving wheel;

the limiting block is arranged on the base and below the driving wheel, corresponds to the second upright column and is used for limiting the second upright column;

when the second upright column rotates to abut against the limiting block, the supporting leg moves to the second position.

8. The vacuum cleaner leg arrangement of claim 7, wherein the drive assembly further comprises:

the reset torsion spring is sleeved on the belt wheel rotating shaft, one end of the reset torsion spring is abutted against the first stand column, the other end of the reset torsion spring is abutted against the limiting block and used for driving the first stand column to reset, so that the supporting legs are rotated to the first position from the second position.

9. The leg device of claim 2,

the supporting legs are provided with matching holes which are inclined holes, and the supporting legs are sleeved on the supporting leg rotating shafts through the matching holes, so that the rotating axes of the supporting legs incline towards one side of the base, which is far away from the vertical rod.

10. The leg device of claim 2,

the bottom surfaces of the supporting legs are inclined surfaces or sawtooth surfaces, so that the rotating axes of the supporting legs incline towards one side of the base, which is far away from the vertical rod.

11. Vacuum cleaner leg arrangement according to any one of claims 2 to 10,

the inclination angle of the rotation axis of the leg is in the range of 1 ° to 10 ° in the lateral direction of the base.

12. The suction cleaner leg device according to any one of claims 1 to 10,

the number of the supporting leg assemblies is two, and the supporting leg assemblies are respectively arranged on two sides of the vertical rod;

the two groups of driving assemblies are respectively arranged on two sides of the vertical rod, and each group of driving assemblies is in transmission connection with the supporting legs on the same side;

wherein the inclination directions of the rotation axes of the supporting legs positioned at two sides of the vertical rod are opposite.

13. A vacuum cleaner, comprising:

a base;

the bottom end of the upright rod is rotatably connected with the base;

a suction cleaner leg assembly as claimed in any one of claims 1 to 12, provided on the base.

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