Filter neglected loading protection device and dust collector

Abstract

The utility model discloses a filter neglected loading protection device and a dust collector, the filter neglected loading protection device comprises a machine body and a filter, the filter is detachably installed on the machine body, and the machine body is provided with a normally closed valve. The filter is provided with a valve, the valve moves between at least one opening position for communicating the air duct and at least one closing position for blocking the air duct, the filter is provided with an ejector rod, and when the filter is connected to the machine body, the ejector rod triggers the valve to move from the closing position to the opening position. According to the filter neglected loading protection device provided by the utility model, the normally closed valve is arranged in the dust collector, so that the air duct is ensured to be closed when the filter is not mounted, the motor is prevented from being damaged, and the safety and the service life of the dust collector are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum cleaner parts, and more specifically, to a filter missing protection device and a vacuum cleaner. Background Art

[0002] As a daily cleaning tool, the core function of a vacuum cleaner is to suck dust and debris on the ground or other surfaces into the machine through strong suction. To prevent the inhaled debris and dust from damaging the internal components of the vacuum cleaner, a filter is usually installed. The function of the filter is to separate the inhaled debris from the air, ensuring that only clean air flows through the key components of the machine. However, the filter is installed inside the vacuum cleaner, and a missing installation phenomenon may occur during daily use and maintenance. If the filter is not properly installed or completely missing, once the vacuum cleaner is turned on, the inhaled dust and garbage will directly enter the motor. The accumulation of dust and debris will cause the motor to wear more severely, run poorly, and even cause damage to the motor, thereby shortening the service life of the vacuum cleaner and increasing the maintenance cost. Summary of the Invention

[0003] The utility model aims to solve one of the technical problems in the related art to a certain extent. For this purpose, the utility model provides a filter missing protection device, which ensures that the air duct is closed when the filter is not installed by setting a normally closed valve in the vacuum cleaner, avoids damage to the motor, and improves the safety and service life of the vacuum cleaner.

[0004] The utility model also provides a vacuum cleaner with the above-mentioned filter missing protection device.

[0005] The technical solution adopted by the utility model is as follows: A filter missing protection device is provided, which includes a machine body and a filter. The filter is detachably installed on the machine body. The machine body is provided with a normally closed valve, and the valve moves between an open position where at least one air duct is penetrated and a closed position where at least one air duct is blocked. The filter is provided with a push rod. When the filter is connected to the machine body, the push rod triggers the valve to move from the closed position to the open position.

[0006] After adopting the above structure, the design of the present utility model effectively solves the problem of the filter being missed during installation. By setting a normally closed valve inside the vacuum cleaner body, when the filter is correctly installed on the body, the ejector rod on the filter will trigger the valve, thereby moving the valve from the closed position to the open position, enabling the air duct to be unblocked and the vacuum cleaner to work normally. If the filter is not correctly installed or is missed during installation, the ejector rod cannot trigger the valve, and the valve will remain in the closed position, blocking the air duct. This design ensures that the vacuum cleaner cannot work properly without the filter installed, thus preventing dust and debris from entering the motor and avoiding damage to the motor. At the same time, the structure of this device is simple and easy to implement, which not only improves the use safety and reliability of the vacuum cleaner, but also extends its service life, and has broad application prospects.

[0007] According to an embodiment of the present utility model, the body includes a top cover and a mounting bracket, the mounting bracket is arranged at the bottom of the top cover, and the filter is detachably connected to the mounting bracket; the filter realizes simple installation and replacement through the detachable connection with the mounting bracket. When the filter is correctly installed on the mounting bracket, its position can ensure that the ejector rod accurately triggers the opening action of the valve, ensuring the smoothness of the air duct.

[0008] According to an embodiment of the present utility model, the mounting bracket is fixedly installed with a cylindrical fixing device, the mounting bracket is provided with a through hole, the opening of the fixing device is communicated with the through hole, and several ventilation holes are arranged on the side wall of the fixing device; the ventilation holes and the through hole constitute a part of the air duct.

[0009] According to an embodiment of the present utility model, the valve is floatingly installed between the mounting bracket and the fixing device.

[0010] According to an embodiment of the present utility model, the mounting bracket is provided with an annular groove, and the valve has an annular edge. When the valve is in the closed position, the annular edge is matched with the annular groove; the annular groove and the annular edge of the valve are closely matched to form a reliable sealing structure. When the valve is in the closed position, the annular edge is closely combined with the annular groove to ensure that the air duct is completely closed, effectively preventing any dust and debris from entering the motor through the air duct.

[0011] According to an embodiment of the present utility model, a spring is arranged between the valve and the fixing device, and the spring has an elastic tendency to keep the valve in the closed position.

[0012] According to an embodiment of the present utility model, the middle part of the mounting bracket has a first convex ring and a second convex ring arranged concentrically, and the first convex ring and the second convex ring are combined to form the annular groove; and / or

[0013] The fixing device is provided with a first protrusion, and the valve is provided with a second protrusion. The first protrusion and the second protrusion are arranged facing each other. When the valve is in a closed position, the first protrusion abuts against the second protrusion.

[0014] According to an embodiment of the present invention, the fixing device is fixedly connected to the first convex ring or the second convex ring.

[0015] According to an embodiment of the present invention, the body further includes a housing, and there is a space for installing a blower between the housing and the top cover.

[0016] A vacuum cleaner includes a dust collection bucket and the filter missing protection device according to any one of the above. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is an exploded view of the vacuum cleaner main body in the embodiment of the present invention;

[0019] Figure 2 It is a cross-sectional view of the body in the embodiment of the present invention;

[0020] Figure 3 For Figure 2 The partial enlarged view at A in

[0021] Figure 4 It is a cross-sectional view of the filter in the embodiment of the present invention;

[0022] Figure 5 It is a cross-sectional view of the filter missing protection device in the embodiment of the present invention;

[0023] Figure 6 It is a partial enlarged view of the filter missing protection device in the embodiment of the present invention.

[0024] Explanation of the reference numerals in the drawings:

[0025] 1. Body; 20. Filter; 30. Dust collection bucket;

[0026] 11. Housing; 12. Top cover; 13. Blower; 14. Mounting rack; 15. Fixing device; 16. Valve; 17. Spring;

[0027] 12a. Air inlet;

[0028] 14a, First convex ring; 14b, Second convex ring; 14c, Annular groove; 14d, Through hole;

[0029] 15a, First protrusion; 15b, Ventilation hole;

[0030] 16a, Second protrusion;

[0031] 21, Push rod. Specific embodiments

[0032] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention. Embodiment 1

[0033] As Figures 1-6 shown, in this embodiment, a filter 20 missing installation protection device is disclosed, which includes a body 1 and a filter 20. The filter 20 is detachably installed on the body 1. The body 1 is provided with a normally closed valve 16, and the valve 16 moves between an open position where at least one air duct is penetrated and a closed position where at least one air duct is blocked. The filter 20 is provided with a push rod 21. When the filter 20 is connected to the body 1, the push rod 21 triggers the valve 16 to move from the closed position to the open position.

[0034] Furthermore, in this embodiment, the filter 20 is a cylindrical Hepa filter element, one end of which is sealed or hollowed out, and the other end is an opening. The filter 20 is connected to the body 1 through this opening. For example, in this embodiment, the body 1 is connected to the filter 20 through a rotary snap structure. The outer periphery of the filter 20 is hollowed out, and the push rod 21 is a convex column structure formed by axially extending from the inner top end of the filter 20.

[0035] Furthermore, in this embodiment, the body 1 includes a housing 11, a top cover 12 and a mounting bracket 14. The housing 11 is fixedly connected to the top cover 12, and there is a space for installing a fan 13 between them. An air inlet 12a is provided at the center of the push rod 21. The top cover 12 is used to connect to a dust collection bucket 30, and the top cover 12 and the dust collection bucket 30 form a sealed space. When the fan 13 works to generate negative pressure, when external dust is sucked in during dust collection, it is blocked and filtered by the filter 20 and stays in the dust collection bucket 30.

[0036] Furthermore, in combination with Figure 3As shown, in this embodiment, the mounting bracket 14 is disposed at the bottom of the top cover 12, and the filter 20 is detachably connected to the mounting bracket 14. The valve 16 is floatingly mounted between the mounting bracket 14 and the fixing device 15. The mounting bracket 14 is provided with an annular groove 14c, and the valve 16 has an annular edge. When the valve 16 is in the closed position, the annular edge cooperates with the annular groove 14c. A spring 17 is provided between the valve 16 and the fixing device 15, and the spring 17 has an elastic tendency to keep the valve 16 in the closed position.

[0037] Further, in this embodiment, the mounting bracket 14 is fixedly mounted at the bottom of the top cover 12. The mounting bracket 14 has a frustum-shaped structure, and the filter 20 is sleeved on the outer periphery of the mounting bracket 14. The larger-diameter end of the mounting bracket 14 is open and communicates with the air inlet 12a on the top cover 12. The smaller-diameter end of the mounting bracket 14 is provided with a through hole 14d. The opening of the fixing device 15 communicates with the through hole 14d, and a plurality of ventilation holes 15b are provided on the side wall of the fixing device 15; the ventilation holes 15b and the through hole 14d constitute a part of the air duct. The inner diameter of the through hole 14d is smaller than the outer diameter of this end of the mounting bracket 14. That is, the smaller-diameter end of the mounting bracket 14 has an annular end face, and a first convex ring 14a and a second convex ring 14b are concentrically arranged on the inner surface of the annular shape. The first convex ring 14a and the second convex ring 14b are combined to form the annular groove 14c. The outer diameter of the first convex ring 14a is smaller than the inner diameter of the second convex ring 14b. One end of the opening of the fixing device 15 is integrally connected to the first convex ring 14a by welding. The valve body has a disc structure. A second protrusion 16a is provided on the surface of the disc facing the fixing device 15, and a ring of annular edge is protruded on the side of the disc away from the fixing device 15. A first protrusion 15a is provided on the inner top surface of the fixing device 15, and the first protrusion 15a and the second protrusion 16a are arranged facing each other. Further, in this embodiment, the first protrusion 15a and the second protrusion 16a are coaxially arranged. When the valve 16 is in a closed position, the first protrusion 15a and the second protrusion 16a abut and limit. One end of the spring 17 is sleeved on the first protrusion 15a, and the other end is sleeved on the second protrusion 16a.

[0038] In another embodiment, a vacuum cleaner is disclosed, which includes a dust collection bucket 30 and the filter 20 missing protection device in this embodiment.

[0039] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0040] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0041] In the present utility model, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0042] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limitations to the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present utility model.

Claims

1. A filter missing protection device, comprising a body and a filter, wherein the filter is detachably mounted on the body, and is characterized in that: The body is provided with a normally closed valve, which moves between an open position where at least one air duct is penetrated and a closed position where at least one air duct is blocked. The filter is provided with a push rod. When the filter is connected to the body, the push rod triggers the valve to move from the closed position to the open position.

2. The filter missing protection device according to claim 1, wherein: The body includes a top cover and a mounting frame. The mounting frame is arranged at the bottom of the top cover, and the filter is detachably connected to the mounting frame.

3. The filter missing protection device according to claim 2, wherein: The mounting frame is fixedly installed with a cylindrical fixing device. The mounting frame is provided with a through hole. The opening of the fixing device is communicated with the through hole, and a plurality of ventilation holes are arranged on the side wall of the fixing device.

4. The filter missing protection device according to claim 3, characterized in that: The valve is floatingly installed between the mounting frame and the fixing device.

5. A filter missing protection device according to claim 3 or 4, characterized in that: The mounting frame is provided with an annular groove, and the valve has an annular edge. When the valve is in the closed position, the annular edge cooperates with the annular groove.

6. The filter missing protection device according to claim 4, characterized in that: A spring is arranged between the valve and the fixing device, and the spring has an elastic tendency to keep the valve in the closed position.

7. A filter missing protection device according to claim 5, characterized in that: The middle part of the mounting frame has a first convex ring and a second convex ring arranged concentrically. The first convex ring and the second convex ring are combined to form the annular groove; and / or The fixing device is provided with a first protrusion, and the valve is provided with a second protrusion. The first protrusion and the second protrusion are arranged facing each other. When the valve is in a closed position, the first protrusion and the second protrusion abut against each other.

8. The filter missing protection device according to claim 7, characterized in that: The fixing device is fixedly connected to the first convex ring or the second convex ring.

9. The filter missing protection device according to claim 2, characterized in that: The body further includes a housing, and there is a space for installing a blower between the housing and the top cover.

10. A vacuum cleaner, characterized in that: It includes a dust collection bucket and the filter leakage protection device according to any one of claims 1-9.

Images