WO2020199623A1

WO2020199623A1 - Cleaning tool

Info

Publication number: WO2020199623A1
Application number: PCT/CN2019/121471
Authority: WO
Inventors: 刘海平; 施金鑫; 胡彬; 鲁保东
Original assignee: 天佑电器（苏州）有限公司
Priority date: 2019-03-29
Filing date: 2019-11-28
Publication date: 2020-10-08
Also published as: CN109832999A

Abstract

Disclosed is a cleaning tool, comprising a working head assembly (10), a handle assembly (12) arranged opposite the working head assembly (10), a lower connecting assembly (16) connected to the working head assembly (10) and extending along a longitudinal axis (14), and an upper connecting assembly (18) connected to the handle assembly (12), wherein the lower connecting assembly (16) and the upper connecting assembly (18) are rotatably connected by means of a rotating piece (20), one of the lower connecting assembly (16) and the upper connecting assembly (18) is provided with a locking piece (32), and when in a first state, the locking piece (32) is locked so as to enable the upper connecting assembly (18) to be fixed relative to the lower connecting assembly (16), and when in a second state, the locking piece (32) is not locked so as to enable the upper connecting assembly (18) to rotate around the rotating piece (20) relative to the lower connecting assembly (16).

Description

cleaning tools

Technical field

The invention relates to a cleaning tool.

Background technique

In the traditional vertical vacuum cleaner, the connecting rod assembly is a straight rod assembly, which cannot be bent, which makes the operation inconvenient and the cleaning area is limited when cleaning the bottom of the table or bed.

In order to solve the above technical problems, those skilled in the art have made improvements. For example, Chinese patent CN203468509U issued on March 12, 2014 discloses a rotatable angle suction nozzle for a vacuum cleaner, including a nozzle body, a nozzle body, and a ball The head handle and the connecting elbow, the front end of the ball handle is provided with a hollow connecting ball head, and there are rotating shaft holes on both sides of the connecting ball head; both sides of the tail of the nozzle body are provided with rotating shafts connecting both sides of the ball head The hole corresponds to the nozzle shaft, and the nozzle body is rotatably fitted in the shaft hole of the ball handle through the nozzle shaft. So that the suction nozzle can be bent. In addition, the outer diameter of the shaft hole of the ball handle is provided with a plurality of clamping grooves, and the outer diameter of the nozzle shaft is provided with a protruding chuck for clamping into the groove, so that the straight rod of the suction nozzle Position and positioning with different bending angles. In the straight rod position, the slot and the chuck are also matched, which makes the fit unstable, so the structure is very unreliable.

Summary of the invention

The purpose of the present invention is to provide a cleaning tool whose structure is more reliable and easy to operate.

In order to achieve one of the objectives of the above-mentioned invention, an embodiment of the present invention provides a cleaning tool, the cleaning tool includes a working head assembly, a handle assembly disposed opposite to the working head assembly, connected to the working head assembly and along The lower connecting component extending in the longitudinal axis, the upper connecting component connected with the handle component, the lower connecting component and the upper connecting component are rotatably connected by a rotating member, wherein: the lower connecting component and the upper connecting component One of the connecting components is provided with a locking member, and the locking member is operable to move between a first state and a second state. In the first state, the locking member is locked so that the upper connecting assembly is opposite to each other. When the lower connecting component is fixed and in the second state, the locking member is not locked so that the upper connecting component can rotate relative to the lower connecting component with respect to the rotating member.

As a further improvement of an embodiment of the present invention, the working head assembly includes a dust suction head, a fan device is provided on the handle assembly, and the cleaning tool further includes a hose connecting the lower connecting assembly and the upper connecting assembly, The fan device is in gas communication with the dust suction head through the upper connecting component, the hose, and the lower connecting component.

As a further improvement of an embodiment of the present invention, the lower connecting assembly includes a lower connecting pipe connected with the working head assembly and a lower sheath connected with the lower connecting pipe, and the upper connecting assembly includes The handpiece connecting tube connected with the handle assembly and the upper sheath connected with the handpiece connecting tube, the upper sheath and the lower sheath are rotatably connected by the rotating part, and the locking part is arranged at One of the upper sheath and the lower sheath is provided with a mating part on the other of the upper sheath and the lower sheath, and in the first state, the locking part is connected to the mating part In the second state, the locking member is disengaged from the mating portion.

As a further improvement of one embodiment of the present invention, the locking member is provided on the upper sheath, and one of the locking member and the upper sheath is provided with a long guide hole extending along the longitudinal axis, and the locking The other of the piece and the upper sheath is provided with a guide pin that is matched with the guide long hole.

As a further improvement of an embodiment of the present invention, the handle assembly includes a handle portion for holding, the rotating member has a rotation axis, the rotation axis and the longitudinal axis define a first plane, and the locking member And the handle portion is located on the same side of the first plane.

As a further improvement of an embodiment of the present invention, the mating part is a mating groove, and a guide part is provided on the locking member, so that the locking member can be automatically guided into the mating groove.

As a further improvement of an embodiment of the present invention, the locking member slides from the first state to a direction approaching the handle assembly to a second state.

As a further improvement of an embodiment of the present invention, the cleaning tool further includes an elastic member for holding the locking member in the first state.

As a further improvement of an embodiment of the present invention, the elastic member is a compression spring, one end of the compression spring abuts against the locking member, and the other end of the compression spring abuts against the lower connecting assembly and the Connect one of the components.

As a further improvement of an embodiment of the present invention, in the first state, the locking member completely surrounds the outer circumference of the upper connecting assembly and the lower connecting assembly, and in the second state, the locking member Is slid to escape from the outer periphery of the other of the upper connecting component and the lower connecting component.

As a further improvement of an embodiment of the present invention, one of the upper connecting assembly and the lower connecting assembly is provided with a stopper, and the locking member is provided with a limiting portion, and when the locking member is in the second state, The stop part is matched with the limit part to limit the locking member in the second state.

As a further improvement of an embodiment of the present invention, the limiting portion is a limiting rib, and the stopping portion is a stop groove. When the locking member transforms from the first state to the second state, the locking The member can be operated to first slide a certain distance along the longitudinal axis, and then rotate a certain angle around the longitudinal axis so that the limiting rib is matched with the stop groove.

As a further improvement of an embodiment of the present invention, one of the upper connecting component and the lower connecting component is further provided with a guide groove, the guide groove is intersected with the stop groove, and the guide groove runs along the longitudinal direction. The extending direction of the axis extends and is matched with the limiting rib to guide the sliding movement of the locking member.

Compared with the prior art, the present invention has the beneficial effects that: when the straight rod is operated, the locking member is in the first state to ensure that the upper connecting component is fixed relative to the lower connecting component; when it is necessary to bend When the locking member is moved to the second state, the upper connecting component can be rotated and bent at a certain angle relative to the lower connecting component. Therefore, the structure of the cleaning tool is not only reliable, but also convenient and labor-saving.

Description of the drawings

Figure 1 is a front view of the cleaning tool in the first embodiment of the present invention, at this time the cleaning work is in a straight rod state;

Figure 2 is a front view of the cleaning tool in the first embodiment of the present invention, when the cleaning work is in a bent state;

Fig. 3 is a partial enlarged schematic diagram of A in Fig. 1;

Fig. 4 is a partial enlarged schematic diagram of B in Fig. 2;

Figure 5 is a cross-sectional view of the cleaning tool in Figure 1, when the locking member is in the first state, and the cleaning work is in a straight rod state;

Figure 6 is a cross-sectional view of the cleaning tool in Figure 1, when the locking member is slid to the second state, and the cleaning work is in a straight rod state;

Fig. 7 is a partial enlarged schematic diagram of C in Fig. 5;

Fig. 8 is a partial enlarged schematic diagram of D in Fig. 6;

Figure 9 is a cross-sectional view of the cleaning tool in Figure 1, at this time the cleaning tool is in an intermediate state about to return from a bent state to a straight rod state;

Fig. 10 is a partial enlarged schematic diagram of E in Fig. 9;

Figure 11 is a front view of the cleaning tool in the second embodiment of the present invention. At this time, the locking member is in the first state and the cleaning tool is in the straight rod state;

Figure 12 is a cross-sectional view of the cleaning tool in Figure 11;

Figure 13 is a cross-sectional view of the cleaning tool in Figure 11, when the locking member is slid to the second state, and the cleaning tool is in a straight rod state;

Figure 14 is a three-dimensional schematic diagram of the cleaning tool in Figure 11, at this time the locking member is in the first state and the cleaning tool is in the straight rod state;

Figure 15 is a partial enlarged schematic diagram of F in Figure 13;

Fig. 16 is a partial enlarged schematic diagram of G in Fig. 14.

detailed description

The present invention will be described in detail below in conjunction with the specific embodiments shown in the drawings. However, these embodiments do not limit the present invention, and the structural, method, or functional changes made by those skilled in the art based on these embodiments are all included in the protection scope of the present invention.

In the drawings of the present application, for the convenience of illustration, some dimensions of structures or parts are exaggerated relative to other structures or parts, and therefore, they are only used to illustrate the basic structure of the subject matter of the present application.

In addition, terms such as "upper", "above", "below", "below" and the like used herein to indicate a relative position in space are for the purpose of facilitating description to describe a unit or feature shown in the drawings relative to The relationship of another unit or feature. The term of the relative position in space may be intended to include different orientations of the device in use or operation other than those shown in the figures. For example, if the device in the figure is turned over, the unit described as being "below" or "below" other units or features will be "above" the other units or features. Therefore, the exemplary term "below" can encompass both above and below orientations. The device can be oriented in other ways (rotated by 90 degrees or other orientations), and the space-related descriptors used herein are explained accordingly.

1 to 4, the present invention provides a first preferred embodiment. This specific embodiment discloses a cleaning tool. The cleaning tool includes a working head assembly 10 and a handle assembly 12 opposite to the working head assembly 10. That is, the working head assembly 10 and the handle assembly 12 are arranged at opposite ends of the cleaning tool. Further, the cleaning tool also includes a lower connecting assembly 16 connected to the working head assembly 10 and extending along the longitudinal axis 14, an upper connecting assembly 18 connected to the handle assembly 12, and the lower connecting assembly 16 and the upper connecting assembly 18 pass through rotating parts. 20 rotatably connected. The rotating member 20 has a rotation axis, which is perpendicular to the longitudinal axis 14. The cleaning tool has a straight rod state and a bent state. In the straight rod state, the lower connecting assembly 16 and the upper connecting assembly 18 both extend along the longitudinal axis 14. In the bent state, the upper connecting assembly 18 is bent relative to the lower connecting assembly 16. angle.

In this preferred embodiment, the cleaning tool is a hand-held vacuum cleaner. Of course, the cleaning tool can also be of other types. Specifically, the working head assembly 10 includes a dust suction head 24, a fan device 26 is provided on the handle assembly 12, and the cleaning tool also includes a hose 28 connecting the lower connecting assembly 16 and the upper connecting assembly 18, and the fan device 26 passes through the upper connecting assembly 18. , The hose 28 and the lower connecting assembly 16 are in gas communication with the dust suction head 24. The handle assembly 12 is provided with a battery pack 30 for providing power to the fan device 26, and the fan device 26 also includes a dust cup. Of course, the cleaning tool may not be provided with the battery pack 30, and an external power source may be used.

Further, one of the lower connecting assembly 16 and the upper connecting assembly 18 is provided with a locking member 32, the locking member 32 can be operatively moved between the first state and the second state. In the first state, the locking member 32 is locked So that the upper connecting assembly 18 is fixed relative to the lower connecting assembly 16, the cleaning tool is in a straight rod state; in the second state, the locking member 32 is not locked so that the upper connecting assembly 18 can be relative to the lower connecting assembly 16 relative to the rotating member 20 Rotate to adjust the cleaning tool to a bent state to clean low spaces, such as cleaning the bottom of a table or bed. Specifically in this embodiment, the locking member 32 can slide between the first state and the second state along the extending direction of the longitudinal axis 14. Of course, the locking member 32 is not only designed to be slidable. It can also be designed into other structural forms, such as a structural form similar to a flip cover, as long as it has a locking function and can move between locking and unlocking.

In this preferred embodiment, when the straight rod is operated, the locking member 32 is in the first state to ensure that the upper connecting assembly 18 is fixed relative to the lower connecting assembly 16, making the structure more reliable; and when the cleaning tool needs to be bent During operation, as long as the locking member 32 is pulled to slide it to the second state, the upper connecting assembly 18 can be rotated and bent at a certain angle relative to the lower connecting assembly 16, so as to bend the cleaning tool. The operation is very convenient and Save effort. Therefore, the structure of the cleaning tool is not only reliable, but also convenient and labor-saving.

The lower connecting assembly 16 includes a lower connecting pipe 34 connected with the working head assembly 10 and a lower sheath 36 connected with the lower connecting pipe 34. The upper connecting assembly 18 includes a handpiece connecting pipe 38 connected with the handle assembly 12 and The upper sheath 40 connected to the handpiece connecting tube 38, the upper sheath 40 and the lower sheath 36 are rotatably connected by the rotating member 20, and the locking member 32 is provided on one of the upper sheath 40 and the lower sheath 36, The other of the upper sheath 40 and the lower sheath 36 is provided with a mating portion 42. In the first state, the locking member 32 is mated with the mating portion 42, and in the second state, the locking member 32 is mated with the mating portion 42 Get off.

Further referring to FIGS. 5 to 10, in this preferred embodiment, the locking member 32 slides from the first state to the direction close to the handle assembly 12 to the second state. In other words, when the cleaning tool is bent, one hand of the operator holds the handle assembly 12, and the other hand pulls the locking member 32 backwards in the direction of the handle assembly 12 to unlock the cleaning tool. The operation of the tool is more convenient.

The cleaning tool further includes an elastic member 44 that maintains the locking member 32 in the first state. In addition, when the locking member 32 needs to return to the first state from the second state, it does not need to be manually unlocked. The locking member 32 will automatically return from the second state to the first state under the elastic force of the elastic member 44, thereby realizing self-control. lock. Preferably, the elastic member 44 is a compression spring 44, one end of the compression spring 44 abuts against the locking member 32, and the other end of the compression spring 44 abuts against one of the lower connecting assembly 16 and the upper connecting assembly 18. Of course, the elastic element 44 can also be configured as another elastic element 44 such as a tension spring. In this specific embodiment, the locking member 32 is provided on the upper connecting assembly 18, so the other end of the compression spring 44 abuts against the upper connecting assembly 18. Similarly, when the locking member 32 is disposed on the lower connecting assembly 16, the other end of the compression spring 44 abuts against the lower connecting assembly 16. Furthermore, the other end of the compression spring 44 abuts against the upper sheath 40, and the locking member 32 is provided with an accommodation groove 46 for accommodating the compression spring 44. In addition, the locking member 32 is provided with an operating portion 48 for the operator to pull.

Specifically, in this embodiment, the locking member 32 is provided on the upper sheath 40, that is, the mating portion 42 is provided on the lower sheath 36. Of course, the locking member 32 can also be provided on the lower sheath 36, and correspondingly, the mating portion 42 is provided on the upper sheath 40. One of the locking member 32 and the upper sheath 40 is provided with a long guide hole 50 extending along the longitudinal axis 14, and the other of the locking member 32 and the upper sheath 40 is provided with a guide pin 52 that is matched with the guide long hole 50 . Wherein, there are two long guide holes 50, correspondingly, two guide pins 52 are provided, and the two guide pins 52 are matched with the two long guide holes 50 respectively. In order to make the structure of the cleaning tool more compact, the longitudinally extending center lines of the two guiding long holes 50 coincide.

In addition, the mating portion 42 is a mating groove, and the locking member 32 is provided with a mating protrusion. When the locking member 32 is in the first state, the mating protrusion is located in the mating groove, and when the locking member 32 slides to the second position In the second state, the mating protrusion and the mating groove are separated. Of course, the mating groove can also be provided on the locking member 32, and correspondingly, the mating protrusion is provided on the upper sheath 40. Further, the locking member 32 is provided with a guide portion 54 to enable the locking member 32 to be automatically guided into the mating groove when the cleaning tool is adjusted from the bent state to the straight rod state. Specifically, the guiding portion 54 is a smoothly transitioned curved surface. Preferably, the guiding portion 54 is provided as an outer arc surface. Of course, it can also be set to other non-circular curved surfaces.

The handle assembly 12 includes a handle portion 56 for holding. When the cleaning tool is in a straight rod state, the rotation axis and the longitudinal axis 14 define a first plane, and the locking member 32 and the handle portion 56 are located on the same side of the first plane. With this arrangement, when the cleaning tool is bent, the locking member 32 will not interfere.

As shown in FIGS. 11 to 16, the present invention provides a second embodiment. This embodiment is the same as the first embodiment, and unlocking is also achieved by sliding the locking member 58 to perform a bending operation on the cleaning tool. The difference between this embodiment and the first embodiment is the specific structure and arrangement of the locking member 58. The different parts are explained in detail below.

In this embodiment, in the first state, the locking member 58 completely surrounds the outer circumference of the upper connecting assembly 60 and the lower connecting assembly 62, and in the second state, the locking member 58 is slid to escape the upper connecting assembly 60 and the lower connecting assembly. 62 The outer circumference of the other one, so that the cleaning tool can be bent.

One of the upper connecting assembly 60 and the lower connecting assembly 62 is provided with a stopper 64, and the locking member 58 is provided with a stopper 66. When the locking member 58 is in the second state, the stopper 64 matches the stopper 66 Then, the locking member 58 is limited to the second state. Specifically in this embodiment, the stopper 64 is provided on the upper connecting assembly 60. When the cleaning tool is bent, the locking member 58 is first pulled in a direction gradually approaching the handle assembly 68, so that the locking member 58 slides. The lower connecting assembly 62 is detached until the limit portion 66 is mated with the stop portion 64, and then the cleaning tool can be bent. Of course, the stopper 64 can also be provided on the lower connecting assembly 62. When the cleaning tool is bent, first pull the locking member 58 in a direction gradually away from the handle assembly 68 to make the locking member 58 detach from the upper connecting assembly 60 It is known that until the limit portion 66 is mated with the stop portion 64, the cleaning tool can be bent.

Further, the limiting portion 66 is a limiting rib, and the stopping portion 64 is a stop groove. When the locking member 58 is converted from the first state to the second state, the locking member 58 can be operated to slide along the longitudinal axis 70 to a certain extent. Distance, and then rotate a certain angle around the longitudinal axis 70 to make the limit ribs fit the stop groove.

The upper connecting assembly 60 is also provided with a guide groove 72, the guide groove 72 communicates with the stop groove, and the guide groove 72 extends along the extension direction of the longitudinal axis 70 and is matched with the limiting rib to perform the sliding movement of the locking member 58 guide. Similarly, when the stopper 64 is provided on the lower connecting assembly 62, the guide groove 72 is also provided on the lower connecting assembly 62.

Same as the first embodiment, the lower connecting assembly 62 includes a lower connecting tube 74 connected to the working head assembly 73 and a lower sheath 76 connected to the lower connecting tube 74, and the upper connecting assembly 60 includes a lower connecting tube 74 connected to the handle assembly 68. The handpiece connecting pipe 78 and the upper sheath 80 connected with the handpiece connecting pipe 78. The stopper 64 and the guide groove 72 are provided on the upper sheath 80. When the cleaning tool is bent, the locking member 58 is first pulled in a direction gradually approaching the handle assembly 68, so that the locking member 58 slides to escape the lower sheath 76, until the limit portion 66 is adjacent to the stop portion 64, and then rotate a certain angle around the longitudinal axis 70 so that the limit portion 66 is mated with the stop portion 64, thereby keeping the locking member 58 in the second state, and then The cleaning tool can be bent.

In this embodiment, there is also an elastic member 82 that keeps the locking member 58 in the first state. Preferably, the elastic member 82 is also configured as a compression spring. The compression spring is sleeved on the outer circumference of the upper connection assembly 60, one end of the compression spring abuts against the locking member 58, and the other end of the compression spring abuts against the upper connection assembly 60. Specifically, the compression spring is sleeved on the outer circumference of the upper sheath 80, and the other end of the compression spring abuts against the upper sheath 80. Of course, the elastic member 82 can also be configured as another elastic member 82 such as a tension spring. The locking member 58 is also provided with a receiving groove 84 for receiving part of the elastic member 82. When the locking member 58 needs to be unlocked, the locking member 58 is first rotated about the longitudinal axis 70 to a certain angle to disengage the limiting portion 66 from the stopping portion 64, and then the locking member 58 can be released. At this time, the locking member 58 will be elastic. Under the action of the elastic force of the member 82, it automatically returns to the first state, thereby realizing self-locking.

It should be understood that although this specification is described in accordance with the implementation manners, not each implementation manner only includes an independent technical solution. This narration in the specification is only for clarity, and those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

The series of detailed descriptions listed above are only specific descriptions of feasible implementations of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementations or implementations made without departing from the technical spirit of the present invention All changes shall be included in the protection scope of the present invention.

Claims

A cleaning tool comprising a working head assembly, a handle assembly arranged opposite to the working head assembly, a lower connecting assembly connected to the working head assembly and extending along a longitudinal axis, and a lower connecting assembly connected to the handle assembly. The upper connecting component is connected, the lower connecting component and the upper connecting component are rotatably connected by a rotating part, and the feature is that: one of the lower connecting component and the upper connecting component is provided with a locking part, so The locking member can be operatively movable between a first state and a second state. In the first state, the locking member is locked so that the upper connecting component is fixed relative to the lower connecting component, and the In the second state, the locking member is not locked so that the upper connecting component can rotate relative to the lower connecting component with respect to the rotating member.
The cleaning tool according to claim 1, wherein the working head assembly includes a dust suction head, a fan device is provided on the handle assembly, and the cleaning tool further includes a communication between the lower connecting assembly and the upper connecting assembly The blower device is in gas communication with the dust suction head through the upper connecting component, the hose and the lower connecting component.
The cleaning tool according to claim 1, wherein the lower connecting assembly includes a lower connecting pipe connected with the working head assembly and a lower sheath connected with the lower connecting pipe, and the upper connecting The assembly includes a handpiece connecting tube connected with the handle assembly and an upper sheath connected with the handpiece connecting tube, the upper sheath and the lower sheath are rotatably connected by the rotating member, the The locking element is provided on one of the upper and lower sheaths, and the other of the upper and lower sheaths is provided with a mating portion. In the first state, the locking element is The mating part is mated, and in the second state, the locking member is disengaged from the mating part.
The cleaning tool according to claim 3, wherein the locking member is provided on the upper sheath, and one of the locking member and the upper sheath is provided with a long guide hole extending along the longitudinal axis , The other of the locking member and the upper sheath is provided with a guide pin matched with the guide long hole.
The cleaning tool according to claim 3, wherein the handle assembly includes a handle portion for holding, the rotating member has a rotation axis, and the rotation axis and the longitudinal axis define a first plane, The locking member and the handle portion are located on the same side of the first plane.
The cleaning tool according to claim 3, wherein the mating part is a mating groove, and a guide part is provided on the locking member, so that the locking member can be automatically guided into the mating recess groove.
The cleaning tool according to claim 1, wherein the locking member slides from the first state to a direction close to the handle assembly to a second state.
The cleaning tool according to claim 1, wherein the cleaning tool further comprises an elastic member for holding the locking member in the first state.
The cleaning tool according to claim 8, wherein the elastic member is a compression spring, one end of the compression spring abuts against the locking member, and the other end of the compression spring abuts against the lower connection One of the component and the upper connecting component.
The cleaning tool according to claim 1, wherein in the first state, the locking member completely surrounds the outer circumference of the upper connecting assembly and the lower connecting assembly, and in the second state, The locking member is slid to escape the outer periphery of the other one of the upper connecting component and the lower connecting component.
The cleaning tool according to claim 10, characterized in that: one of the upper connecting assembly and the lower connecting assembly is provided with a stop part, and the locking part is provided with a limiting part, when the locking part is in the second In the second state, the stop portion is mated with the limiting portion to limit the locking member in the second state.
The cleaning tool according to claim 11, wherein the limiting portion is a limiting rib, and the stopping portion is a stop groove, when the locking member is transformed from the first state to the second state The locking member can be operated to first slide a certain distance along the longitudinal axis, and then rotate a certain angle around the longitudinal axis so that the limiting rib is matched with the stop groove.
The cleaning tool according to claim 12, characterized in that: one of the upper connecting component and the lower connecting component is further provided with a guide groove, and the guide groove communicates with the stop groove, and the guide groove It extends along the extension direction of the longitudinal axis and is mated with the limiting rib to guide the sliding movement of the locking member.