Exhaust device and vacuum cleaner

Abstract

The present invention relates to an exhaust device and a vacuum cleaner, comprising: a housing; a gas power mechanism assembled within the housing, defining an air flow chamber with the housing; a shock absorber disposed between the gas power mechanism and the housing, and dividing the air flow chamber into a closed chamber isolated from the outside and a communication chamber communicating with the outside; the gas power mechanism has an air inlet end and an air outlet end that communicate with each other, the air inlet end communicates with the outside, and the air outlet end communicates with the closed chamber; wherein, the shock absorber has an air flow hole communicating between the closed chamber and the communication chamber. For the above-mentioned exhaust device and vacuum cleaner, the air flow hole of the shock absorber can guide the air flow to be discharged from a position close to the air inlet end of the gas power mechanism. When the vacuum cleaner is applied and the handle is located at the air outlet end of the gas power mechanism, the discharged air flow is prevented from directly blowing against the human body; and since the shock absorber has an air flow hole, it has a better shock absorption effect compared with a solid-structured shock absorber.

Description

Technical Field

[0001] The present invention relates to the technical field of dust removal, and particularly to an exhaust device and a vacuum cleaner. Background Art

[0002] With the development of the economy and the progress of society, people are increasingly pursuing the quality of life. Among them, the cleanliness of the environment, as an important indicator to evaluate the quality of life, has received increasing attention from people. In order to improve the cleanliness of the environment, vacuum cleaners have emerged.

[0003] A vacuum cleaner includes a gas-dust separation device and an exhaust device. The gas-dust separation device is used for gas-dust separation. The exhaust device includes a gas power mechanism, which is used to provide the power for the airflow to flow in the vacuum cleaner. The gas formed after the gas-dust separation device separates is discharged to the outside through the exhaust device. However, in the exhaust device of traditional vacuum cleaners, the air is often directly exhausted from the air outlet end of the gas power mechanism. Since the handle is generally arranged at the air outlet end of the gas power mechanism, when the user holds the handle, the airflow blows directly towards the human body from the air outlet end of the gas power mechanism, resulting in poor user experience. Summary of the Invention

[0004] Based on this, in view of the above problems, it is necessary to provide an exhaust device and a vacuum cleaner that are not likely to directly blow the airflow towards the human body.

[0005] An exhaust device, comprising:

[0006] A housing;

[0007] A gas power mechanism, assembled in the housing, and defining an air flow cavity with the housing;

[0008] A damping member, arranged between the gas power mechanism and the housing, and dividing the air flow cavity into a closed cavity isolated from the outside and a communication cavity communicating with the outside; the gas power mechanism has an air inlet end and an air outlet end that are interconnected, the air inlet end communicates with the outside, and the air outlet end communicates with the closed cavity;

[0009] Wherein, the damping member has an air flow hole communicating between the closed cavity and the communication cavity.

[0010] In one embodiment, the damping member is sleeved and arranged between the gas power mechanism and the housing.

[0011] In one embodiment, a plurality of the air flow holes are circumferentially spaced apart along the damping member.

[0012] In one embodiment, the air flow holes include an intermediate section, an air inlet section and an air outlet section respectively located at two ends of the intermediate section. The cross-sectional area of the air inlet section gradually increases from the end connected to the intermediate section to the end far away from the intermediate section, and / or the cross-sectional area of the air outlet section gradually increases from the end connected to the intermediate section to the end far away from the intermediate section.

[0013] In one embodiment, the exhaust device further includes an air inlet pipe, and the air inlet pipe is communicated with the air inlet end of the gas power mechanism.

[0014] In one embodiment, at least a part of the air inlet pipe is assembled in the housing and defines an air outlet cavity communicated with the communication cavity between the air inlet pipe and the housing. The communication cavity is communicated with the outside through the air outlet cavity.

[0015] In one embodiment, a part of the air inlet pipe covers the outside of the gas power mechanism, and the exhaust device further includes a sealing member, and the sealing member is hermetically arranged between the air inlet pipe and the gas power mechanism.

[0016] In one embodiment, the cavity wall at one end of the closed cavity far away from the air flow hole forms an arc portion with an opening facing the air flow hole, and the arc portion is arranged opposite to the air flow hole.

[0017] In one embodiment, an air outlet is formed on the housing, and the communication cavity is communicated with the outside through the air outlet.

[0018] In one embodiment, there are a plurality of the air outlets, and each of the air outlets is strip-shaped and arranged around the circumference of the housing.

[0019] A vacuum cleaner includes a handle and the exhaust device as described in any one of the above. The handle is connected to the housing and is assembled at one end of the housing far away from the communication cavity.

[0020] For the above exhaust device and vacuum cleaner, the air flow holes of the damping member can guide the air flow to be discharged from a position close to the air inlet end of the gas power mechanism. When the vacuum cleaner is applied, the handle is located at the air outlet end of the gas power mechanism, so that the discharged air flow is avoided from directly blowing against the human body; and because the damping member has air flow holes, compared with a damping member with a solid structure, it has a better damping effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is an exploded view of a partial structure of a vacuum cleaner provided by an embodiment of the present invention;

[0022] Figure 2 is Figure 1 the structural diagram of the exhaust device of the vacuum cleaner shown in

[0023] The exhaust device 100 of the vacuum cleaner 200, the housing 10 of the exhaust device 100, the arc portion 11 of the housing 10, the limiting boss 12 of the housing 10, the air outlet 13 of the exhaust device 100, the first half shell 14 of the housing 10, the second half shell 15 of the housing 10, the gas power mechanism 20 of the exhaust device 100, the air inlet end 21 of the gas power mechanism 20, the air outlet end 22 of the gas power mechanism 20, the resisting portion 23 of the gas power mechanism 20, the limiting groove 24 of the gas power mechanism 20, the closed cavity 31 of the exhaust device 100, the communicating cavity 32 of the exhaust device 100, the vibration damping member 40 of the exhaust device 100, the air flow hole 41 of the exhaust device 100, the middle section 411 of the air flow hole 41, the air inlet section 412 of the air flow hole 41, the air outlet section 413 of the air flow hole 41, the air inlet pipe 50 of the exhaust device 100, the sealing member 60 of the exhaust device 100, the limiting rib 61 of the housing 10, the air outlet cavity 70 of the exhaust device 100, the handle 300 of the vacuum cleaner 200, the power supply battery 400 Detailed implementation manners

[0024] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0027] Refer to Figure 1 and Figure 2 , an embodiment of the present invention provides an exhaust device 100, which is arranged on an exhaust device and is used for exhausting air. The exhaust device can be a vacuum cleaner 200 or an air purifier, that is, as long as it is an exhaust device that needs to be provided with an exhaust device 100, it is applicable, and no limitation is made here.

[0028] Taking the vacuum cleaner 200 as an example below, the technical solution of the present application will be described in detail. This embodiment is only used as an example for illustration and will not limit the technical scope of the present application. Furthermore, unnecessary components are omitted in the drawings of the embodiment to clearly show the technical features of the present application.

[0029] The vacuum cleaner 200 includes an exhaust device 100, a gas-dust separation device (not shown in the figure) and a power supply 200. The exhaust device 100 includes a housing 10 (refer to Figure 2 ) and a gas power mechanism 20 (refer toFigure 2 ) The air-dust separation device is disposed outside the housing 10 and is used to achieve air-dust separation. The gas power mechanism 20 is disposed inside the housing 10 and is used to provide the power for the airflow to flow in the vacuum cleaner 200. The power supply 200 is used to supply electrical energy to the gas power mechanism 20.

[0030] The external airflow first enters the air-dust separation device under the action of the gas power mechanism 20 for air-dust separation. The dust formed after air-dust separation is deposited in the air-dust separation device, and the gas formed after air-dust separation enters the exhaust device 100 and is discharged to the outside.

[0031] The exhaust device 100 further includes a shock absorber 40. An air flow chamber (not shown in the figure) is defined between the gas power mechanism 20 and the housing 10. The shock absorber 40 is disposed between the gas power mechanism 20 and the housing 10 and divides the air flow chamber into a closed chamber 31 isolated from the outside and a communication chamber 32 communicating with the outside. An air flow hole 41 communicating the closed chamber 31 and the communication chamber 32 is formed on the shock absorber 40. The gas power mechanism 20 has an intake end 21 and an outlet end 22 communicating with each other. The intake end 21 communicates with the outside, and the outlet end 22 communicates with the closed chamber 31.

[0032] In this way, the gas formed after being separated by the air-dust separation device enters from the intake end 21 of the gas power mechanism 20 and is discharged into the closed chamber 31 from the outlet end 22. Since the closed chamber 31 is isolated from the outside, the gas will enter the communication chamber 32 from the air flow hole 41 and then be discharged to the outside. That is, the exhaust device 100 of the present invention will no longer exhaust air from the outlet end 22 of the gas power mechanism 20, but will exhaust air from a position near the intake end 21 of the gas power mechanism 20 after the air turns back from its outlet end.

[0033] And because the shock absorber 40 has the air flow hole 41, compared with the shock absorber 40 with a solid structure, the setting of the air flow hole 41 can increase the elasticity of the shock absorber 40 to increase its shock absorption effect, so that the noise transmitted from the gas power mechanism 20 to the outside is relatively small.

[0034] The vacuum cleaner 200 further includes a handle 300. The handle 300 is connected to the housing 10 to facilitate the user to operate the vacuum cleaner 200. Specifically, the handle 300 is assembled at one end of the housing 10 away from the communication chamber 32. When the user operates the vacuum cleaner 200 through the handle 300, since the communication chamber 32 is set away from the handle 300, the vacuum cleaner 200 will discharge air from a position away from the human body, avoiding blowing directly at the human body.

[0035] It should be noted here that the meaning of the handle 300 being assembled at one end of the housing 10 away from the communication chamber 32 is that the handle 300 can be assembled on the side of the housing 10 away from the communication chamber 32 or on the side facing away from the handle 300.

[0036] The shock absorber 40 is sleeved between the gas power mechanism 20 and the housing 10 to increase the contact area between the shock absorber 40 and the gas power mechanism 20 and enhance the shock absorption effect. Specifically, a resisting portion 23 against the air flow direction is provided on the outer peripheral wall of the gas power mechanism 20, and the shock absorber 40 abuts against the resisting portion 23 to reduce the movement of the shock absorber 40 in the air flow cavity when it is impacted by the air flow.

[0037] In one embodiment, the cavity wall at one end of the closed cavity 31 away from the air flow hole 41 forms an arc portion 11 with an opening facing the air flow hole 41, and the arc portion 11 is arranged opposite to the air flow hole 41. The setting of the arc portion 11 facilitates guiding the wind flowing out from the air outlet end 22 of the gas power mechanism 20 into the air flow hole 41.

[0038] Specifically, the housing 10 includes a first half shell 14 and a second half shell 15 which are separately arranged, and the first half shell 14 and the second half shell 15 are butted to form the housing 10, and the arc portion 31 is arranged on the second half shell 15. Setting the housing 10 as the separate first half shell 14 and second half shell 15 can facilitate the assembly of the gas power mechanism 20 and the shock absorber 40.

[0039] Furthermore, a plurality of air flow holes 41 are arranged along the circumferential direction of the shock absorber 40 to facilitate the air flow to enter the communication cavity 32 from the closed cavity 31 and be discharged to the outside.

[0040] Specifically, each air flow hole 41 includes an intermediate section 411 and an air inlet section 412 and an air outlet section 413 respectively located at both ends of the intermediate section 411. The cross-sectional area of the air inlet section 412 gradually increases from the end connected to the intermediate section 411 to the end far from the intermediate section 411, and / or the cross-sectional area of the air outlet section 413 gradually increases from the end connected to the intermediate section 411 to the end far from the intermediate section 411. That is, the air inlet section 412 can be set as a cone, at this time the air inlet area of the air inlet section 412 increases, so that the air flow smoothly enters the air flow hole 41 to reduce the wind resistance and noise, and the same is true for setting the air outlet section 413 as a cone.

[0041] The exhaust device 100 further includes an air inlet pipe 50 which is connected between the air dust separation device and the air inlet end of the gas power mechanism 20 to facilitate the air flowing out from the air dust separation device to enter the gas power mechanism 20.

[0042] In one embodiment, at least part of the air inlet pipe 50 is assembled in the housing 10 and defines an air outlet cavity 70 communicating with the communication cavity 32 between the air inlet pipe 50 and the housing 10, and the communication cavity 32 communicates with the outside through the air outlet cavity 70. It can be imagined that in some other embodiments, the air inlet pipe 50 can also be arranged outside the housing 10, which is not limited herein.

[0043] Further, a part of the air inlet pipe 50 covers the gas power mechanism 20, and the exhaust device 100 further includes a seal 60, which is hermetically arranged between the air inlet pipe 50 and the gas power mechanism 20. In this way, the sealing performance between the air inlet pipe 50 and the gas power mechanism 20 is ensured, so as to prevent the air inlet from overflowing between the air inlet pipe 50 and the gas power mechanism 20 and interfering with the air outlet.

[0044] In one embodiment, the entire air inlet pipe 50 is accommodated in the housing 10. One end of the air inlet pipe 50 away from the gas power mechanism 20 abuts against the inner wall of the housing 10, and one end of the gas power mechanism 20 away from the air inlet pipe 50 abuts against the inner wall of the housing 10. Along the flow direction of the air flow, the seal 60 abuts between the air inlet pipe 50 and the gas power mechanism 20 to fix the air inlet pipe 50, the seal 60 and the gas power mechanism 20 in the housing 10.

[0045] Preferably, a limiting boss 12 protrudes inside the housing 10. One end of the air inlet pipe 50 away from the gas power mechanism 20 is sleeved outside the limiting boss 12 and fixed to the limiting boss 12 by screws. One end of the air inlet pipe 50 close to the gas power mechanism 20 is in a flared shape, and the seal 60 is in a flared shape matching the air inlet pipe 50, so as to be easily covered and fixed outside the gas power mechanism 20.

[0046] Further, the seal 60 is provided with a limiting rib 61 protruding towards the gas power mechanism 20, and a limiting groove 24 is provided on the gas power mechanism 20. The limiting groove 24 and the limiting rib 61 cooperate to limit the position of the gas power mechanism 20.

[0047] An air outlet 13 is also opened on the housing 10, and the air flow cavity communicates with the outside through the air outlet 13. Specifically, the air outlet 13 is in a long strip shape arranged around the circumference of the housing 10 to facilitate the discharge of gas.

[0048] An embodiment of the present invention further provides a vacuum cleaner 200, including a gas-dust separation device, an exhaust device 100 and a handle 300. The gas-dust separation device is used to realize gas-dust separation, the exhaust device 100 provides the power for the air flow to flow in the vacuum cleaner 200 and is used for exhausting the air after the gas-dust separation of the vacuum cleaner 200, and the handle 300 is used for the user to operate the vacuum cleaner 200.

[0049] The exhaust device 100 and the vacuum cleaner 200 provided by the embodiments of the present invention have the following beneficial effects:

[0050] The vibration damping member 40 is provided with air flow holes 41, so as to promote the vibration damping member 40 to form a hollow structure. Compared with the solid structure in the prior art, its vibration damping effect is better, thereby reducing the noise transmitted from the gas power mechanism 20 to the outside. And the air flow holes 41 communicate between the closed cavity 31 and the communication cavity 32, guiding the air flow discharged from the air outlet end 22 of the gas power mechanism 20 to flow to the communication cavity 32 and discharging to the outside from the side of the air inlet end 21 of the gas power mechanism 20, avoiding the air flow blowing directly at the human body when the handle 300 is assembled on the side close to the air outlet end 22 of the gas power mechanism 20.

[0051] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0052] The above-described embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. An exhaust device, characterized in that, Comprising: A housing (10); A gas power mechanism (20), assembled within the housing (10), defining an air flow chamber with the housing (10); A vibration damping member (40), disposed between the gas power mechanism (20) and the housing (10), and dividing the air flow chamber into a closed chamber (31) isolated from the outside and a communication chamber (32) communicating with the outside; the gas power mechanism (20) has an intake end (21) and an outlet end (22) that communicate with each other, the intake end (21) communicates with the outside, and the outlet end (22) communicates with the closed chamber (31); Wherein, the vibration damping member (40) has an air flow hole (41) communicating between the closed chamber (31) and the communication chamber (32); An air outlet (13) for communicating the communication chamber (32) with the outside is further provided on the housing (10), the communication chamber (32) communicates with the outside through the air outlet (13), and the air outlet (13) is arranged closer to the intake end (21) than the outlet end (22), so that the gas discharged from the outlet end (22) of the power mechanism (20) can be folded back to a position near the intake end (21) of the gas power mechanism (20) for exhaust.

2. The exhaust device according to claim 1, wherein, The vibration damping member (40) is sleeved and disposed between the gas power mechanism (20) and the housing (10).

3. The exhaust device according to claim 2, characterized in that, A plurality of the air flow holes (41) are circumferentially spaced along the vibration damping member (40).

4. The exhaust device according to claim 1, characterized in that, The air flow hole (41) includes an intermediate section (411) and an air inlet section (412) and an air outlet section (413) respectively located at both ends of the intermediate section (411). The cross-sectional area of the end of the air inlet section (412) connected to the intermediate section (411) gradually increases from the end connected to the intermediate section (411) to the end far from the intermediate section (411), and / or the cross-sectional area of the end of the air outlet section (413) connected to the intermediate section (411) gradually increases from the end connected to the intermediate section (411) to the end far from the intermediate section (411).

5. The exhaust device according to claim 1, characterized in that The exhaust device further includes an air inlet pipe (50), and the air inlet pipe (50) communicates with the intake end (21) of the gas power mechanism (20).

6. The exhaust device according to claim 5, characterized in that, At least a part of the air inlet pipe (50) is assembled within the housing (10) and defines an air outlet chamber (70) communicating with the communication chamber (32) with the housing (10), and the communication chamber (32) communicates with the outside through the air outlet chamber (70).

7. The exhaust device according to claim 6, characterized in that, A part of the air inlet pipe (50) covers the outside of the gas power mechanism (20), and the exhaust device further includes a sealing member (60), and the sealing member (60) is sealingly disposed between the air inlet pipe (50) and the gas power mechanism (20).

8. The exhaust device according to claim 1, characterized in that, The end wall of the closed chamber (31) far from the air flow hole (41) forms an arc portion (11) with an opening facing the air flow hole (41), and the arc portion (11) is disposed opposite to the air flow hole (41).

9. The exhaust device according to claim 1, characterized in that, There are a plurality of the air outlets (13), and each air outlet (13) is in a strip shape surrounding the circumference of the housing (10).

10. A vacuum cleaner, characterized in that, Comprising a handle (300) and an exhaust device as described in any one of claims 1-9, the handle (300) is connected to the housing (10) and assembled at an end of the housing (10) away from the communication cavity (32).

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