Ducting and vacuum cleaner

Abstract

The utility model belongs to the technical field of cleaning electric appliances, disclose a kind of air duct pipe and dust collector, air duct pipe includes tube body, rubber sleeve and push mechanism, tube body is provided with opening, opening communicates the inner chamber of tube body, rubber sleeve is sleeved in the outer periphery of tube body, and covers opening, push mechanism is installed on tube body, and it is configured as the part of rubber sleeve that is overlapped with opening towards the inside of tube body is pushed.In the effect of push mechanism, the part of rubber sleeve that is overlapped with opening will be deformed, and it is extended into tube body interior by opening, whereby, at opening, the cross-sectional area of air duct reduces, to be able to increase the airflow velocity in air duct pipe, to be able to increase suction force further.The air duct pipe in the utility model can adjust the flow rate of its internal airflow, to be able to adjust suction force size under the premise of not changing motor power, to be able to avoid causing dust collector energy consumption increase.

Description

Technical Field

[0001] This utility model relates to the field of cleaning appliance technology, and in particular to an air duct and a vacuum cleaner. Background Technology

[0002] Vacuum cleaners, as a widely used household cleaning device, are mainly composed of a motor, air duct, dust cup, etc. The motor is used to generate negative pressure, which draws dust and other impurities from the outside into the dust cup through the air duct.

[0003] The cleaning effect of a vacuum cleaner mainly depends on its suction power. Traditional vacuum cleaners mostly increase suction power by adjusting the motor power. However, increasing the motor power will increase the energy consumption of the vacuum cleaner.

[0004] Therefore, the above problems urgently need to be solved. Utility Model Content

[0005] The purpose of this invention is to provide an air duct and a vacuum cleaner to solve the problem that most traditional vacuum cleaners increase suction power by adjusting the motor power, but increasing the motor power will lead to increased energy consumption of the vacuum cleaner.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] This utility model provides a duct pipe, comprising:

[0008] The tube body has an opening that connects to the inner cavity of the tube body;

[0009] A rubber sleeve is fitted around the outer periphery of the tube body and covers the opening;

[0010] A pushing mechanism is mounted on the tube and configured to push the portion of the rubber sleeve that overlaps with the opening toward the inside of the tube.

[0011] Preferably, the pushing mechanism includes:

[0012] Mounting bracket, fixedly connected to the tube body;

[0013] A push rod is mounted on the mounting bracket and is movable relative to the mounting bracket along the opening direction of the opening to push against the portion of the rubber sleeve that overlaps with the opening.

[0014] Preferably, the mounting bracket is provided with a mounting hole that extends along the opening direction of the opening, the push rod is screwed into the mounting hole, and a knob is provided at the end of the push rod away from the tube body.

[0015] Preferably, the side of the mounting bracket facing the tube body is fitted against the outer wall of the rubber sleeve and covers the portion of the rubber sleeve that overlaps with the opening.

[0016] Preferably, the tube body is provided with at least two connecting brackets, and the mounting bracket is screwed to the connecting brackets.

[0017] Preferably, the tube body is provided with a plurality of connection holes, the plurality of connection holes surround the outer periphery of the opening, and the rubber sleeve is coated on the outer periphery of the tube body.

[0018] Preferably, the portion of the rubber sleeve that overlaps with the opening is provided with several pleats, all of which are located on the side of the rubber sleeve away from the tube body.

[0019] Preferably, all of the folds extend circumferentially along the opening.

[0020] Preferably, the outer periphery of the tube is surrounded by a first retaining ring and a second retaining ring, and the rubber sleeve is pressed between the first retaining ring and the second retaining ring.

[0021] In another aspect, this utility model also provides a vacuum cleaner, including the air duct as described above, through which the vacuum cleaner draws in external impurities.

[0022] The beneficial effects of this utility model are:

[0023] In this invention, under the action of the pushing mechanism, the portion of the rubber sleeve overlapping the opening deforms and extends into the tube body through the opening. This reduces the cross-sectional area of ​​the air duct at the opening, thereby increasing the airflow velocity within the duct and consequently increasing suction power. The air duct in this invention can automatically adjust the internal airflow velocity, allowing for adjustment of suction power without changing the motor power, thus preventing increased energy consumption of the vacuum cleaner. Attached Figure Description

[0024] Figure 1 This is one of the structural schematic diagrams of the air duct in the embodiments of this utility model;

[0025] Figure 2 This is the second schematic diagram of the structure of the air duct in this utility model embodiment;

[0026] Figure 3 This is a schematic diagram of the air duct after the push rod has been removed in an embodiment of this utility model;

[0027] Figure 4 This is a schematic diagram of the air duct after the pushing mechanism has been removed in an embodiment of this utility model;

[0028] Figure 5This is a schematic diagram of the tube body in an embodiment of this utility model;

[0029] Figure 6 This is a schematic diagram of the push rod in an embodiment of this utility model.

[0030] In the picture:

[0031] 1. Pipe body; 11. Opening; 12. Connecting bracket; 13. Connecting hole; 14. First retaining ring; 15. Second retaining ring; 16. Air duct;

[0032] 2. Rubber sleeve; 21. Wrinkles;

[0033] 3. Pushing mechanism; 31. Mounting bracket; 311. Mounting hole; 312. Bolt; 32. Push rod; 321. Knob. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0035] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0038] This embodiment provides a vacuum cleaner, which includes a motor, an air duct, and a dust cup. The vacuum cleaner sucks in external impurities through the air duct. Specifically, the vacuum cleaner generates negative pressure through the motor, thereby sucking dust and other impurities from the outside into the dust cup through the air duct.

[0039] Based on the above, please refer to Figures 1 to 6 In this embodiment, the air duct includes a pipe body 1, a rubber sleeve 2, and a pushing mechanism 3. The pipe body 1 forms an air duct 16 inside, and the pipe body 1 is provided with an opening 11. The opening 11 communicates with the inner cavity of the pipe body 1, that is, the opening 11 is connected to the air duct 16. The rubber sleeve 2 is fitted on the outer periphery of the pipe body 1 and covers the opening 11. The pushing mechanism 3 is installed on the pipe body 1 and is configured to push the part of the rubber sleeve 2 that overlaps with the opening 11 toward the inside of the pipe body 1.

[0040] Under the action of the pushing mechanism 3, the part of the rubber sleeve 2 that overlaps with the opening 11 will deform and extend into the tube body 1 through the opening 11. As a result, the cross-sectional area of ​​the air duct 16 at the opening 11 decreases, thereby increasing the airflow velocity inside the air duct and thus increasing the suction power. In this embodiment, the air duct can automatically adjust the airflow velocity inside, thereby adjusting the suction power without changing the motor power, thus avoiding increased energy consumption of the vacuum cleaner.

[0041] Specifically, when it is necessary to increase the suction force, the pushing mechanism 3 pushes the part of the rubber sleeve 2 that overlaps with the opening 11 towards the inside of the tube body 1, so as to reduce the cross-sectional area of ​​the part of the air duct 16 located at the opening 11, thereby increasing the airflow velocity in the air duct and thus increasing the suction force.

[0042] It is worth noting that in other alternative embodiments, the duct can also be used on machines such as ventilators or blowers, and this embodiment does not impose any specific limitations on this.

[0043] In this embodiment, the pushing mechanism 3 includes a mounting frame 31 and a push rod 32. The mounting frame 31 is fixedly connected to the tube body 1, and the push rod 32 is mounted on the mounting frame 31 and can move relative to the mounting frame 31 along the opening direction of the opening 11 to push against the part of the rubber sleeve 2 that overlaps with the opening 11, thereby deforming the part of the rubber sleeve 2 that overlaps with the opening 11 and extending into the tube body 1 through the opening 11.

[0044] Understandably, when it is necessary to reduce the suction force, simply move the push rod 32 toward the side away from the rubber sleeve 2 so that the part of the rubber sleeve 2 that overlaps with the opening 11 can recover its deformation. Specifically, after the part of the rubber sleeve 2 that overlaps with the opening 11 recovers its deformation, the part of the rubber sleeve 2 that overlaps with the opening 11 gradually moves outward from the inside of the pipe body 1 to increase the cross-sectional area of ​​the part of the air duct 16 located at the opening 11, thereby reducing the wind speed and thus reducing the suction force.

[0045] Therefore, this embodiment can adjust the airflow speed in the air duct by controlling the degree of deformation of the part of the rubber sleeve 2 that overlaps with the opening 11 into the tube body 1, thereby adjusting the suction force.

[0046] For example, in this embodiment, the mounting bracket 31 is screwed to the pipe body 1. Specifically, the pipe body 1 is provided with two connecting brackets 12, and the mounting bracket 31 is screwed to the connecting brackets 12 by bolts 312, so that it can be stably installed on the pipe body 1.

[0047] Of course, in other alternative embodiments, the tube body 1 may also be provided with three or four or more connecting brackets 12, and the mounting bracket 31 is screwed to all the connecting brackets 12. This embodiment does not impose specific limitations on this.

[0048] Furthermore, the mounting bracket 31 is provided with a mounting hole 311, which extends along the opening direction of the opening 11 and penetrates the mounting bracket 31. The push rod 32 is screwed into the mounting hole 311, and a knob 321 is provided at the end of the push rod 32 away from the tube body 1. The operator can control the push rod 32 to move along the opening direction of the opening 11 by rotating the knob 321, thereby adjusting the position of the push rod 32 and thus adjusting the suction power. As a result, the push mechanism 3 in this embodiment is easy to operate. Moreover, the push mechanism 3 does not have a motor or cylinder or other driving components, resulting in a simple structure and further reducing the energy consumption of the vacuum cleaner.

[0049] In addition, in this embodiment, the side of the mounting bracket 31 facing the tube body 1 is attached to the outer wall of the rubber sleeve 2 and covers the part of the rubber sleeve 2 that overlaps with the opening 11. That is, the part of the rubber sleeve 2 located on the outer periphery of the opening 11 is pressed and limited between the mounting bracket 31 and the tube body 1. Thus, when the push rod 32 pushes against the part of the rubber sleeve 2 that overlaps with the opening 11, it prevents the part of the rubber sleeve 2 located on the outer periphery of the opening 11 from being pulled and creating a gap between it and the tube body 1 along the radial direction of the tube body 1, thereby preventing airflow leakage inside the tube body 1.

[0050] It is worth noting that in this embodiment, the two connecting brackets 12 are located on both sides of the opening 11 along the axial direction of the tube body 1. Thus, the parts of the mounting bracket 31 located on both sides of the opening 11 along the axial direction of the tube body 1 are connected to the tube body 1, thereby ensuring that the parts of the rubber sleeve 2 located on the outer periphery of the opening 11 can be pressed and confined between the mounting bracket 31 and the tube body 1.

[0051] In addition, the tube body 1 is provided with a plurality of connection holes 13, which surround the outer periphery of the opening 11. For example, the tube body 1 is provided with 10 connection holes 13, which surround the outer periphery of the opening 11. The rubber sleeve 2 is coated on the outer periphery of the tube body 1. That is, in this embodiment, the rubber sleeve 2 is prepared on the outer periphery of the tube body 1 using a coating process. The rubber sleeve 2, which is integrally formed on the outer periphery of the tube body 1, is embedded in all the connection holes 13, and the part of the rubber sleeve 2 embedded in the connection hole 13 is bonded to the hole wall of the connection hole 13. Thus, when the push rod 32 pushes the part of the rubber sleeve 2 that overlaps with the opening 11, it more effectively prevents the part of the rubber sleeve 2 located on the outer periphery of the opening 11 from being pulled and creating a gap between it and the tube body 1 along the radial direction of the tube body 1, thereby more effectively preventing airflow leakage inside the tube body 1.

[0052] Exemplarily, the rubber sleeve 2 can be prepared on the outer periphery of the tube body 1 using a two-color mold or an overmolding mold; this embodiment does not impose specific limitations on this. Moreover, since the specific process of the overmolding process is prior art, this embodiment will not elaborate on it.

[0053] In addition, in this embodiment, the outer periphery of the tube body 1 is surrounded by a first retaining ring 14 and a second retaining ring 15, and the rubber sleeve 2 is pressed between the first retaining ring 14 and the second retaining ring 15. On the one hand, the first retaining ring 14 and the second retaining ring 15 can provide positioning for the preparation of the rubber sleeve 2. On the other hand, the first retaining ring 14 and the second retaining ring 15 can limit the rubber sleeve 2, thereby preventing the rubber sleeve 2 from shifting due to external force.

[0054] Furthermore, the rubber sleeve 2 has several pleats 21 on the part that overlaps with the opening 11. All pleats 21 are located on the side of the rubber sleeve 2 away from the tube body 1, so as to facilitate the deformation of the part of the rubber sleeve 2 that overlaps with the opening 11.

[0055] Moreover, several folds 21 extend circumferentially along the opening 11, which makes it easier for the parts of the rubber sleeve 2 that overlap with the opening 11 to deform.

[0056] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A ductwork, characterized in that, include: The tube body (1) is provided with an opening (11), the opening (11) being connected to the inner cavity of the tube body (1); A rubber sleeve (2) is fitted around the outer periphery of the tube body (1) and covers the opening (11); The pushing mechanism (3) is installed on the tube body (1) and is configured to push the portion of the rubber sleeve (2) that overlaps with the opening (11) toward the inside of the tube body (1).

2. The ductwork according to claim 1, characterized in that, The pushing mechanism (3) includes: Mounting bracket (31) is fixedly connected to the tube body (1); A push rod (32) is mounted on the mounting bracket (31) and is movable relative to the mounting bracket (31) along the opening direction of the opening (11) to push against the portion of the rubber sleeve (2) that overlaps with the opening (11).

3. The ductwork according to claim 2, characterized in that, The mounting bracket (31) is provided with a mounting hole (311), which extends along the opening direction of the opening (11). The push rod (32) is screwed into the mounting hole (311), and a knob (321) is provided at the end of the push rod (32) away from the tube body (1).

4. The ductwork according to claim 2, characterized in that, The mounting bracket (31) facing the tube body (1) fits against the outer wall of the rubber sleeve (2) and covers the part of the rubber sleeve (2) that overlaps with the opening (11).

5. The ductwork according to claim 2, characterized in that, The tube body (1) is provided with at least two connecting brackets (12), and the mounting bracket (31) is screwed to the connecting brackets (12).

6. The ductwork according to claim 1, characterized in that, The tube body (1) is provided with a plurality of connection holes (13), the plurality of connection holes (13) surround the outer periphery of the opening (11), and the rubber sleeve (2) is coated on the outer periphery of the tube body (1).

7. The ductwork according to claim 1, characterized in that, The rubber sleeve (2) has several pleats (21) at the part that overlaps with the opening (11), and all the pleats (21) are located on the side of the rubber sleeve (2) away from the tube body (1).

8. The ductwork according to claim 7, characterized in that, Several of the folds (21) extend circumferentially along the opening (11).

9. The ductwork according to claim 1, characterized in that, The outer periphery of the tube body (1) is surrounded by a first retaining ring (14) and a second retaining ring (15), and the rubber sleeve (2) is pressed between the first retaining ring (14) and the second retaining ring (15).

10. A vacuum cleaner, characterized in that, Includes the air duct as described in any one of claims 1-9, through which the vacuum cleaner draws in external impurities.

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