Replaceable dust cup liner and vacuum cleaner

Abstract

The invention relates to a replaceable dust cup inner container and a vacuum cleaner, the replaceable dust cup inner container is constructed to be capable of being installed in a dust cup dust collection chamber of the vacuum cleaner for use, the dust cup inner container comprises a shell made of a non-breathable material, and the shell is provided with an opening which is connected with a tangential air inlet of the dust collection chamber when the dust cup inner container is installed in the dust collection chamber; and the filter element is made of a breathable material, the filter element is connected to the shell, the filter element and the shell jointly define a containing space, and the filter element is constructed to allow dust-containing air flowing into the containing space from the opening to intercept chippings in the containing space so that the air can escape to the outside of the containing space.

Description

Technical Field

[0001] This application relates to the field of surface cleaning equipment, and more specifically, to a replaceable dust cup inner liner applied to a dust cup and a vacuum cleaner using the replaceable dust cup inner liner. Background Art

[0002] After the cleaning work of the vacuum cleaner is completed, it is often necessary for the user to clean the dust in the dust collection cup. Common dust cleaning methods include manual cleaning and automatic cleaning by means of a vacuum cleaner base station used in conjunction with the vacuum cleaner.

[0003] In fact, whether it is manual dust cleaning or dust cleaning by means of a vacuum cleaner base station; in order to keep the dust collection cup clean and tidy, the user needs to perform secondary cleaning on the inner wall and other surfaces of the dust collection cup in the later stage; and since the cleaning work may contact the dust, the user experience is poor. Summary of the Invention

[0004] To solve the above technical problems, an object of this application is to provide a replaceable dust cup inner liner that can be installed in a dust cup. The use of this replaceable dust cup inner liner avoids the user from contacting the dust when cleaning the dust; another object of the present invention is to provide a vacuum cleaner equipped with a replaceable dust cup inner liner.

[0005] In a first aspect, this application provides a replaceable dust cup inner liner, which is applied to a vacuum cleaner provided with a dust cup. A dust collection chamber is provided inside the dust cup, and a tangential air inlet communicating with the dust collection chamber is provided on the dust cup. The tangential air inlet is configured to enable the air flow and debris to rotate around a cyclone axis in the dust collection chamber; the dust cup inner liner is configured to be able to be installed in the dust collection chamber and includes: a housing made of a non-breathable material, and an opening is provided on the housing that intersects with the tangential air inlet when the replaceable dust cup inner liner is installed in the dust collection chamber; and a filter element made of a breathable material, the filter element is connected to the housing and jointly defines a receiving space with the housing. The receiving space is configured to allow the air flow and debris to rotate around the cyclone axis therein. The filter element is configured to allow the air flow and debris flowing into the receiving space from the opening to intercept the debris in the receiving space and allow the air flow to escape to the outside of the receiving space.

[0006] The replaceable dust cup inner liner of this application can replace the dust cup to store debris, and by discarding the replaceable dust cup inner liner filled with debris, it is easy for the user to complete the dust cleaning work.

[0007] In the technical solution of the above first aspect, preferably, the replaceable dust cup inner liner is a single component or a component composed of multiple components.

[0008] In the technical solution of the above first aspect, preferably, the filter element is fixed to the housing by an ultrasonic welding process.

[0009] In the technical solution of the above first aspect, preferably, the housing is a transparent member.

[0010] In the technical solution of the above first aspect, preferably, the hardness of the non-breathable material is greater than that of the breathable material.

[0011] In the technical solution of the above first aspect, preferably, the non-breathable material is plastic.

[0012] In the technical solution of the above first aspect, preferably, the breathable material is a non-woven fabric material.

[0013] In the technical solution of the above first aspect, preferably, the filter element is cylindrical and located at the central part of the housing.

[0014] In a second aspect, the present application provides a vacuum cleaner, including a vacuum cleaner main body and a replaceable dust cup inner liner as described in the above first aspect. The vacuum cleaner main body includes a machine body, a dust cup with a dust collection chamber inside, and a suction motor. A tangential air inlet and an air outlet communicating with the dust collection chamber are provided on the dust collection chamber. The replaceable dust cup inner liner can be removably installed in the dust collection chamber. The suction motor is connected to the air outlet and is configured to be able to push an air flow to flow successively along the tangential air inlet, the opening, the accommodation space, the filter element, and the air outlet.

[0015] In the technical solution of the above second aspect, preferably, one or more positioning structures are provided between the housing and the dust cup.

[0016] In the technical solution of the above second aspect, preferably, the positioning structure includes a concave-convex mating structure.

[0017] In the technical solution of the above second aspect, preferably, the dust cup includes a cup body with an open bottom and a bottom cover for selectively closing or opening the open bottom. The replaceable dust cup inner liner can be moved into or out of the dust collection chamber via the open bottom.

[0018] In the technical solution of the above second aspect, preferably, the vacuum cleaner main body further includes a mesh filter, and the mesh filter is arranged in the dust collection chamber; the filter element is sleeved outside the mesh filter when the replaceable dust cup inner liner is installed in the dust collection chamber.

[0019] When the vacuum cleaner of the present application is in use, the user can dispose of the used replaceable dust cup inner liner to handle the dust in the dust cup. Moreover, the user does not need to contact the debris throughout the process, improving the operation efficiency and convenience, and the user has a good experience.

[0020] In a third aspect, the present application provides a vacuum cleaner, including a vacuum cleaner main body and a replaceable dust cup inner liner. An accommodation space is formed inside the replaceable dust cup inner liner. An opening that is in air flow communication with the accommodation space is provided on the replaceable dust cup inner liner. The vacuum cleaner main body includes a machine body, a dust cup with a built-in dust collection chamber, and a suction motor. A tangential air inlet and an air outlet that communicate with the dust collection chamber are provided on the dust collection chamber. The replaceable dust cup inner liner can be installed in the dust collection chamber. When the dust cup inner liner is installed in the dust collection chamber, the tangential air inlet, the opening, the accommodation space, and the air outlet are in fluid communication in sequence.

[0021] In the technical solution of the above third aspect, preferably, the replaceable dust cup inner liner is provided with a dust filtering component by itself.

[0022] The advantages of the preferred solution of the present application will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the embodiments of the present application. Description of the Drawings

[0023] Figure 1 It is a schematic structural diagram of a vacuum cleaner provided by an embodiment of the present application; Figure 2 It is a schematic internal structural diagram of a vacuum cleaner provided by an embodiment of the present application; Figure 3 It is a schematic diagram of a vacuum cleaner provided by an embodiment of the present application when a dust cup inner liner is installed; Figure 4 It is a schematic diagram of a replaceable dust cup inner liner provided by an embodiment of the present application; Figure 5 It is a schematic diagram of another replaceable dust cup inner liner provided by an embodiment of the present application; Figure 6 It is a schematic diagram of the air flow of a vacuum cleaner provided by an embodiment of the present application after the suction motor is started; Figure 7 It is a schematic diagram of the scene when a used replaceable dust cup inner liner is removed from a vacuum cleaner provided by an embodiment of the present application. Detailed Embodiments

[0024] This application relates to a replaceable dust cup inner liner and a vacuum cleaner using the replaceable dust cup inner liner; the replaceable dust cup inner liner is detachably mounted inside the dust cup of the vacuum cleaner for use. After the operation of the vacuum cleaner is completed or the dust cup inner liner is filled with debris, the user can dispose of the debris in the dust cup by removing and discarding the used replaceable dust cup inner liner. When using this vacuum cleaner next time, the user can reinstall an unused new dust cup inner liner in the dust cup to continue to meet the needs of vacuuming and cleaning.

[0025] The above solution of this application can not only prevent the user's hands from touching the dust and debris in the dust collection cup, but also does not require the assistance of additional equipment (such as a base station with a built-in vacuuming system, etc.), making it more convenient to use. The vacuum cleaner of this application can be a portable handheld vacuum cleaner, a stick vacuum cleaner, a canister vacuum cleaner, or even a self-propelled robotic vacuum cleaner.

[0026] Figure 1 、 Figure 2 and Figure 3 FIGS. 11, 12, and 13 show a schematic example of a vacuum cleaner 100. The vacuum cleaner 100 is a portable handheld vacuum cleaner, which can work by attaching accessories such as a suction tube and a suction head. The vacuum cleaner 100 mainly includes a body 1, a dust cup 2, and a suction motor 3. The suction motor 3 can generate a vacuum negative pressure to promote the flow of air; for example, it can promote the flow of dust-containing air to flow in from a dirty air inlet, enter the dust cup 2, and pass through the suction motor 3.

[0027] The body 1 is usually an assembly assembled from multiple housing parts. In this application, the body 1 has a handle 11 for the user to hold and is provided with an intake duct 12 for the dust-containing air flow to flow in and an exhaust port 13 communicating with the outside atmosphere. The intake duct 12 can either directly move along the surface to be cleaned or be connected to a nozzle accessory (not shown in the figure) to realize sending the dust and air together into the intake duct 12 by using the nozzle accessory.

[0028] The dust cup 2 is configured to receive and store debris. The dust cup includes a cylindrical cup body 21 having an open bottom 211 and a bottom cover 22 for selectively closing or opening the open bottom 211. A dust collection chamber 210 is formed inside the cup body 21. A tangential air inlet 212 fluidly communicating with the dust collection chamber 210 is provided on the side wall of the cup body 21. The tangential air inlet 212 is configured to cause the air flow and debris to rotate around a cyclone axis X within the dust collection chamber 210. One end of the bottom cover 22 is rotatably coupled to the lower portion of the cup body 21 via a hinge 25. An opening button 24 for opening the bottom cover 22 is further provided at the lower portion of the cup body 21. When the handle 11 of the body 1 is held by one hand of the user, the user can actuate the opening button 24 with the thumb or index finger of the other hand to release the bottom cover 22. An air outlet 213 fluidly communicating with the dust collection chamber 210 is provided at the upper portion of the cup body 1. The air outlet 213 is fluidly connected to the suction end of the suction motor 3. In some embodiments, the dust cup 2 is detachably provided on the body 1, such as the upper portion of the cup body 21 being detachably connected to the body 1. A mesh filter 23 is provided in the dust collection chamber 210 of the dust cup 2, and the mesh filter 23 can intercept large particle debris in the dust collection chamber 210.

[0029] The suction motor 3 is fixedly installed inside the upper portion of the body 1. The suction motor 3 is an assembly composed of a motor and an impeller, and it has a suction end (not labeled in the figure) and an exhaust end (not labeled in the figure). After being started, the impeller of the suction motor 3 will generate negative pressure at the suction end, thereby pushing the air flow from the suction end to the exhaust end.

[0030] The vacuum cleaner 100 may further include a power supply 4, and the power supply 4 is electrically connected to the suction motor 3 to supply power to the suction motor 3. The power supply 4 may include one or more rechargeable batteries. In other embodiments, the power supply may also include a power cord that can be connected to an external socket.

[0031] The vacuum cleaner 100 of the present application further includes a replaceable dust cup inner liner 5. The replaceable dust cup inner liner 5 is designed as a consumable, which can be replaced after one or more uses; the replaced replaceable dust cup inner liner 5 can be directly thrown into the trash can.

[0032] See Figure 3 and Figure 4 , which shows an example of a replaceable dust cup inner liner. The replaceable dust cup inner liner 5 includes a housing 51 and a filter element 52. The overall shape of the replaceable dust cup inner liner 5 is adapted to the shape of the dust collection chamber of the vacuum cleaner's dust cup.

[0033] The filter element 52 is connected to the housing 51 and they jointly define a receiving space 50. This receiving space 50 can be used to store debris in place of the dust collection chamber 210.

[0034] The housing 51 is made of an airtight material; the airtight material can be a plastic material such as polypropylene (PP), polystyrene (PS), polyethylene (PE), etc. In order to facilitate the user's observation of the debris in the accommodation space 50, the housing 51 is provided as a transparent member. An opening 511 is provided on the housing 51. When the replaceable dust cup inner liner 5 is installed in the dust collection chamber 210 of the dust cup 2, the opening 511 communicates with the tangential air inlet 212 on the side wall of the cup body 21, so that the airflow and debris flowing through the tangential air inlet 212 are introduced into the accommodation space 50 only through the opening 511; the accommodation space 50 is simultaneously configured to allow the airflow and debris to rotate around the cyclone axis X within the space.

[0035] The filter element 52 is made of a breathable material and is connected to the housing 51. In some embodiments, the filter element 52 is fixed to the housing 51 by an ultrasonic welding process. The breathable material can be a non-woven material made of polypropylene resin. The filter element 52 is configured to allow the dust-containing air flowing into the accommodation space 50 from the opening 511 to intercept the debris within the accommodation space 50 and allow the air to escape to the outside of the accommodation space 50. In some embodiments, the filter element 52 is cylindrical and is located at the central part of the housing 51. The filter element 52 will be sleeved outside the mesh filter 23 when the dust cup inner liner 5 is installed in the dust collection chamber 210.

[0036] In order to enable the replaceable dust cup inner liner 5 to be held in the dust collection chamber 210 in a relatively stable posture, the hardness of the material selected for the housing 51 is greater than the hardness of the breathable material selected for the filter element 52.

[0037] The replaceable dust cup inner liner of the present application can be made into a single component or designed as an assembly composed of multiple components. Refer to Figure 4 the illustrated example, the replaceable dust cup inner liner 5 is a single framework. Refer to Figure 5 the illustrated example, the replaceable dust cup inner liner 500 is composed of two parts, a shell body 501 and a cover body 502. The housing 510 of the replaceable dust cup inner liner 500 is distributed on both the shell body 501 and the cover body 502, the filter element 520 is located at the middle position of the cover body 502, and an opening 5101 is provided on the side wall of the shell body 501. When using the replaceable dust cup inner liner 500, the user needs to assemble the cover body 502 to the upper part of the shell body 501 in a sealed connection manner by himself. In fact, designing the replaceable dust cup inner liner as an assembly composed of multiple components is more for the convenience of storage and transportation; compared with the replaceable dust cup inner liner composed of a single component, the user needs to add pre-assembly steps when using it.

[0038] Refer to Figure 3 , for the dust cup inner liner 5 of the present application, after the bottom cover 22 of the vacuum cleaner 100 is opened, the replaceable dust cup inner liner 5 can be loaded into the dust collection chamber 210.

[0039] In some embodiments, one or more positioning structures may be provided between the replaceable dust cup inner liner and the cup body or the bottom cover of the dust cup. With the aid of these positioning structures, the replaceable dust cup inner liner can be held in the dust collection chamber in a stable posture. The positioning structure may be a concave-convex mating structure, a snap-fit structure, etc.

[0040] As Figure 6 shown, when a replaceable dust cup inner liner 5 is loaded into the dust collection chamber 210 of the vacuum cleaner 100, the tangential air inlet 212 intersects with the opening 511, the air outlet 213 of the dust cup 2 is connected and communicated with the suction end of the suction motor 3. After starting the suction motor 3, the dust-containing air flow 600 will flow sequentially along the intake duct 12, the tangential air inlet 212, the opening 511, the accommodation space 510, the filter element 52, and the air outlet 213. The air flow and debris will rotate around the cyclone axis X in the accommodation space 510 to achieve gas-solid separation. The debris 601 in the dust-containing air flow 600 will be intercepted by the filter element 52 in the accommodation space 510 of the replaceable dust cup inner liner 5, and the filtered air 602 will enter the suction motor 3 from the air outlet 213 and finally be discharged to the outside atmosphere through the exhaust port 13. As Figure 7 shown, when it is necessary to replace the replaceable dust cup inner liner 5, the user operates the bottom cover button 24 to open the bottom cover 22, and the used replaceable dust cup inner liner 5 can be removed through the open bottom 211 of the cup body 21. For example, the removed replaceable dust cup inner liner 5 falls into the trash can 800; then a new replaceable dust cup inner liner 5 can be loaded into the dust collection chamber 210 through the open bottom 211 of the cup body 21.

[0041] The vacuum cleaner of the present application stores debris by using a replaceable dust cup inner liner, which can prevent the debris from soiling the dust cup, and the user does not need to clean the dust cup, making it more convenient to use. Of course, since the vacuum cleaner of the present application is equipped with a mesh filter, it still performs the dust suction work in the absence of a replaceable dust cup inner liner. However, compared with the working mode without installing the dust cup inner liner, in order to keep the dust cup clean and tidy, the dust cup needs to be cleaned regularly.

[0042] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present application. Without departing from the spirit and scope of the present application, the present application will have various changes and improvements. The scope of protection required by the present application is defined by the appended claims, the specification and their equivalents.

Claims

1. A replaceable dust cup liner, applied to a vacuum cleaner provided with a dust cup, wherein a dust collecting chamber is provided inside the dust cup, and a tangential air inlet connected to the dust collecting chamber is provided on the dust cup, wherein the tangential air inlet is configured to realize airflow and debris rotating around a cyclone axis in the dust collecting chamber; characterized in that: The replaceable dust cup liner is configured to be installed in the dust collecting chamber and comprises: A shell made of a non-air-permeable material, the shell being provided with an opening intersecting with the tangential air inlet when the replaceable dust cup liner is installed in the dust collecting chamber; and A filter core is made of a breathable material, the filter core is connected to the shell and defines a receiving space together with the shell, the receiving space is constructed to allow airflow and debris to rotate around the cyclone axis therein, and the filter core is constructed to allow airflow and debris flowing into the receiving space from the opening to retain the debris in the receiving space and allow the airflow to escape to the outside of the receiving space.

2. The replaceable dust cup liner according to claim 1, characterized in that: The replaceable dust cup liner is a single component or an assembly composed of multiple components.

3. The replaceable dust cup liner according to claim 1, characterized in that: The filter element is fixed to the shell by ultrasonic welding process.

4. The replaceable dust cup liner according to claim 1, characterized in that: The shell is a transparent component.

5. The replaceable dust cup liner according to claim 1, characterized in that: The hardness of the non-air-permeable material is greater than the hardness of the air-permeable material.

6. The replaceable dust cup liner according to claim 1, characterized in that: The non-air-permeable material is plastic.

7. The replaceable dust cup liner according to claim 1, characterized in that: The breathable material is a non-woven fabric.

8. The replaceable dust cup liner according to claim 1, characterized in that: The filter element is cylindrical and is located in the center of the shell.

9. A vacuum cleaner, comprising a vacuum cleaner main body and a replaceable dust cup liner as described in any one of claims 1 to 8 above, wherein the vacuum cleaner main body comprises a body, a dust cup with a dust collecting chamber therein, and a suction motor, the dust collecting chamber is provided with a tangential air inlet and an air outlet connected to the dust collecting chamber, the replaceable dust cup liner can be removably installed in the dust collecting chamber, the suction motor is connected to the air outlet, and the suction motor is configured to push the air flow to flow in sequence along the tangential air inlet, the opening, the accommodating space, the filter element and the air outlet.

10. The vacuum cleaner according to claim 9, characterized in that One or more positioning structures are arranged between the shell and the dust cup.

11. The vacuum cleaner according to claim 10, characterized in that The positioning structure comprises a concave-convex matching structure.

12. The vacuum cleaner according to claim 9, characterized in that The dust cup comprises a cup body with an open bottom and a bottom cover for selectively closing or opening the open bottom, and the replaceable dust cup liner can be moved into or out of the dust collecting chamber via the open bottom.

13. The vacuum cleaner according to claim 9, characterized in that The vacuum cleaner host also includes a mesh filter, which is arranged in the dust collecting chamber; the filter core is sleeved on the outside of the mesh filter when the replaceable dust cup liner is installed in the dust collecting chamber.

14. A vacuum cleaner, comprising a vacuum cleaner main body and a replaceable dust cup inner liner, a accommodating space being formed inside the replaceable dust cup inner liner, an opening being provided on the replaceable dust cup inner liner for airflow connection with the accommodating space, the vacuum cleaner main body comprising a body, a dust cup with a dust collecting chamber therein, and a suction motor, the dust collecting chamber being provided with a tangential air inlet and an air outlet connected to the dust collecting chamber, the replaceable dust cup inner liner being installable in the dust collecting chamber, and when the replaceable dust cup inner liner is installed in the dust collecting chamber, the tangential air inlet, the opening, the accommodating space and the air outlet are fluidically connected in sequence.

15. The vacuum cleaner according to claim 14, characterized in that The replaceable dust cup inner liner is provided with a dust filtering component.

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