Double-dust-cavity rotational flow dust blocking handheld dust collector

Abstract

The utility model provides a double-dust-cavity rotational flow dust-blocking handheld dust collector which comprises a shell and a dust cup installed on the shell, a dust separation cavity and a dust collection cavity are arranged in the dust cup, a dust-gas separator is arranged at the joint of the separation cavity and a fan, the end face of the dust-gas separator is a conical part, a plurality of rotary blades are spirally arranged on the conical part, and the rotary blades are arranged on the shell. Ventilation grooves are formed between the rotary blades, and an air inlet pipe is arranged on one side of the shell and communicated with the dust cup. During dust collection, airflow generates rotational flow in the direction of the rotary blades, so that dust is thrown into the dust collection cavity through the opening of the separation cavity under the shielding of centrifugal force and the rotary blades. According to the dust cup, internal wind flows along the rotary blades through the dust-gas separator in the dust cup, dust can be blocked through the rotary blades and is prevented from directly entering the filtering system and the fan through the ventilation grooves, and the problems that the dust of the filtering system is easily accumulated and blocked and the fan is easily damaged after the dust enters the filtering system are solved; therefore, the service lives of the filtering system and the motor are prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of handheld vacuum cleaners, in particular to a double-dust chamber cyclone dust-blocking handheld vacuum cleaner. Background Art

[0002] The handheld vacuum cleaner mainly relies on the fan assembly to generate suction airflow, and sucks the dirt on the surface to be cleaned into the dust cup or dust bag. The patent with application number 202310484585.8 discloses a handheld vacuum cleaner, which includes a body, a fan assembly and a dust cup assembly. The fan assembly includes a fan, a filter and a fan cover. The fan and the filter are respectively located on both sides of the handle axis, and the fan is used to generate suction airflow. The filter is used to filter the exhaust airflow of the fan. The fan cover is defined as a fan accommodating chamber that accommodates at least part of the fan and a filter accommodating chamber that accommodates at least part of the filter; the fan cover also defines an air outlet channel connecting the fan accommodating chamber and the filter accommodating chamber, and the air outlet channel is located on one side of the fan accommodating chamber along the width direction of the fan cover. The air outlet channel includes an inlet and an outlet, and an air duct extending along the width direction of the fan cover is provided between the inlet and the outlet of the air outlet channel. The vacuum cleaner only filters dust through the filter, and is still prone to the problem of fan clogging and damage. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] The problem to be solved by the utility model is to provide a double-dust chamber cyclone dust-blocking handheld vacuum cleaner, so as to overcome the defect in the prior art that the handheld vacuum cleaner cannot effectively isolate the garbage at the motor, resulting in easy damage to the motor.

[0005] (II) Technical solution

[0006] In order to solve the technical problem, the utility model provides a double-dust chamber swirl dust-blocking handheld vacuum cleaner, comprising a shell and a dust cup installed on the shell, a dust and gas separator is provided at the connection between the dust cup and the fan, the end face of the dust and gas separator is a conical portion, a plurality of spiral blades are spirally provided on the conical portion, ventilation grooves are provided between the spiral blades, an air inlet pipe is provided on one side of the shell, and the air inlet pipe is connected to the dust cup; when vacuuming, the air flow enters the dust cup along the air inlet pipe, and a swirl is generated along the direction of the spiral blades, so that the dust is accumulated toward the bottom of the dust cup under the centrifugal force and the shielding of the spiral blades, thereby isolating the dust from the fan through the dust and gas separator.

[0007] In some embodiments, a guide plate is provided on the dust and gas separator, and the guide plate is located at the tail end of the conical portion. An air inlet is provided at the connection between the air inlet pipe and the dust cup. The guide plate is bent, and the air inlet is located at the upper end of the guide plate. The guide plate allows the wind direction entering the dust cup to be the same as the direction of the rotary blade to achieve subsequent dust isolation.

[0008] In some embodiments, the outlet direction of the guide plate is the same as the direction of the rotary blade, the surface of the rotary blade is an arc-shaped surface, the end of the rotary blade is the ventilation groove, and a dust separation chamber and a dust collecting chamber are provided in the dust cup. The air inlet pipe is connected to the dust separation chamber through the air inlet, and the dust separation chamber is connected to the dust collecting chamber through the dust outlet.

[0009] In some embodiments, a baffle is provided on one side of the dust outlet to prevent dust from flowing back into the dust collecting chamber. A bracket is installed in the shell, and the dust and gas separator is mounted on the bracket. Filter cotton is installed in the bracket, and a fan is installed on the other side of the bracket. The dust and gas separator is connected to the fan via the filter cotton.

[0010] In some embodiments, the housing is further provided with a hand-held portion, and the hand-held portion is provided with a switch.

[0011] (III) Beneficial effects

[0012] The utility model provides a swirl dust-blocking handheld vacuum cleaner, which cooperates with the dust and air separator inside the dust cup and the air inlet so that the internal wind direction flows along the rotary blades, and the dust can be blocked by the rotary blades. Under the action of centrifugal force, the dust can gradually move downward along the tapered portion and enter the dust collecting chamber for collection, thereby preventing dust from directly entering the filter system and the fan through the ventilation slots, solving the problems that the filter system is easily clogged by dust accumulation and the fan is easily damaged after dust enters, thereby extending the service life of the filter system and the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a three-dimensional diagram of a double-dust chamber cyclone dust-blocking handheld vacuum cleaner of the utility model;

[0015] Figure 2 This is a cross-sectional view of a dust cup and a dust-gas separator of a double-dust chamber cyclone dust-blocking handheld vacuum cleaner of the utility model;

[0016] Figure 3 It is a three-dimensional diagram of the interior of a dust cup of a double-dust chamber cyclone dust-blocking handheld vacuum cleaner of the utility model;

[0017] Figure 4 This is a three-dimensional view of the air inlet of a double-dust chamber swirl dust-blocking handheld vacuum cleaner of the utility model;

[0018] Figure 5 This is a three-dimensional diagram of the housing and dust-gas separator of a double-dust chamber cyclone dust-blocking handheld vacuum cleaner of the utility model;

[0019] Figure 6 This is a cross-sectional view of a dust-gas separator and a fan of a double-dust-chamber cyclone dust-blocking handheld vacuum cleaner of the utility model;

[0020] Figure 7 It is a three-dimensional diagram of a dust and gas separator of a double-dust chamber cyclone dust-blocking handheld vacuum cleaner of the utility model.

[0021] The names of the components corresponding to the various figure marks in the figure are: 1. Shell; 2. Dust cup; 3. Dust and gas separator; 4. Conical part; 5. Rotary blade; 6. Ventilation slot; 7. Air inlet pipe; 8. Guide plate; 9. Air inlet; 10. Dust separation chamber; 11. Dust collecting chamber; 12. Dust outlet; 13. Baffle; 14. Bracket; 15. Filter cotton; 16. Fan; 17. Hand-held part; 18. Switch. DETAILED DESCRIPTION

[0022] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0023] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0024] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0025] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0026] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the examples can be practiced without these specific details.

[0027] See also Figure 1 to Figure 7 The utility model provides a double-dust chamber cyclone dust-blocking handheld vacuum cleaner, comprising a shell 1 and a dust cup 2 mounted on the shell 1, a flip cover hingedly mounted on the bottom of the dust cup 2 through an elastic button, the flip cover can be opened by pressing the elastic button to clean the inside of the dust cup 2, a dust and gas separator 3 is arranged at the connection between the dust cup 2 and the fan, the end face of the dust and gas separator 3 is a conical portion 4, and the whole is in the shape of a cone, a plurality of rotating blades 5 are spirally arranged on the conical portion 4, ventilation slots 6 are arranged between the rotating blades 5, an air inlet pipe 7 is arranged on one side of the shell 1, and the air inlet pipe 7 is connected with the dust cup 2; when vacuuming, the airflow enters the dust cup 2 along the air inlet pipe 7, generates a cyclone along the direction of the rotating blades 5, so that the dust is Under the cover of the centrifugal force and the rotary blade 5, the dust accumulates toward the bottom of the dust cup 2; specifically, a guide plate 8 is provided on the dust separator 3, and the guide plate 8 is located at the tail end of the conical portion 4. An air inlet 9 is provided at the connection between the air inlet pipe 7 and the dust cup 2. The guide plate 8 is bent, and the air inlet 9 is located at the upper end of the guide plate 8. The outlet direction of the guide plate 8 is the same as that of the rotary blade 5. Therefore, the guide plate 8 can guide the wind entering at the air inlet 9 to swirl in the direction of the rotary blade 5. The surface of the rotary blade 5 is an arc-shaped surface, and the end of the rotary blade 5 is a ventilation groove 6. When the wind flows along the rotary blade 5, it enters the dust separator 3 through the ventilation groove 6, and the dust is blocked by the surface of the rotary blade 5 and then gathers downward.

[0028] In some embodiments, Figure 2As shown, a dust separation chamber 10 and a dust collecting chamber 11 are provided in the dust cup 2, wherein the air inlet pipe 7 is connected to the dust separation chamber 10 through the air inlet port 9, and the dust separation chamber 10 is connected to the dust collecting chamber 11 through the dust outlet port 12. The dust is guided and gathered by the rotary blades 5 and then discharged into the dust collecting chamber 11 through the dust outlet port 12, and a baffle 13 is provided on one side of the dust outlet port 12 to prevent dust from flowing back.

[0029] In some embodiments, Figure 1 , Figure 2 and Figure 6 As shown, a bracket 14 is installed in the shell 1, and the dust and gas separator 3 is mounted on the bracket 14. A filter cotton 15 is installed in the bracket 14, and a fan 16 is installed on the other side of the bracket 14. The dust and gas separator 3 is connected to the fan 16 through the filter cotton 15, and the filter cotton 15 performs secondary filtration. A hand-held part 17 is also provided on the shell 1, and a switch 18 is provided on the hand-held part 17.

[0030] The utility model provides a swirl dust-blocking handheld vacuum cleaner, which cooperates with the dust and air separator inside the dust cup and the air inlet so that the internal wind direction flows along the rotary blades, and the dust can be blocked by the rotary blades. Under the action of centrifugal force, the dust can gradually move downward along the tapered portion and enter the dust collecting chamber for collection, thereby preventing dust from directly entering the filter system and the fan through the ventilation slots, solving the problems that the filter system is easily clogged by dust accumulation and the fan is easily damaged after dust enters, thereby extending the service life of the filter system and the motor.

[0031] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A double-dust chamber cyclone dust-blocking handheld vacuum cleaner, comprising a housing (1) and a dust cup (2) mounted on the housing (1), characterized in that: A dust and gas separator (3) is provided at the connection between the dust cup (2) and the fan, the end face of the dust and gas separator (3) is a conical portion (4), a plurality of spiral blades (5) are spirally provided on the conical portion (4), ventilation slots (6) are provided between the spiral blades (5), and an air inlet pipe (7) is provided on one side of the shell (1), the air inlet pipe (7) is connected to the dust cup (2); when vacuuming, the air flow enters the dust cup (2) along the air inlet pipe (7), and a vortex is generated along the direction of the spiral blades (5), so that dust is accumulated toward the bottom of the dust cup (2) under the protection of the centrifugal force and the spiral blades (5).

2. The double-dust chamber cyclone dust-blocking handheld vacuum cleaner according to claim 1, characterized in that: The dust and gas separator (3) is provided with a guide plate (8), the guide plate (8) is located at the rear end of the conical portion (4), an air inlet (9) is provided at the connection between the air inlet pipe (7) and the dust cup (2), the guide plate (8) is bent, and the air inlet (9) is located at the upper end of the guide plate (8).

3. The double-dust chamber cyclone dust-blocking handheld vacuum cleaner according to claim 2, characterized in that: The outlet direction of the guide plate (8) is the same as the direction of the rotary blade (5), the surface of the rotary blade (5) is an arc-shaped surface, and the end of the rotary blade (5) is the ventilation slot (6).

4. The double-dust chamber cyclone dust-blocking handheld vacuum cleaner according to claim 2, characterized in that: The dust cup (2) is provided with a dust separation chamber (10) and a dust collection chamber (11).

5. The double dust chamber cyclone dust blocking handheld vacuum cleaner according to claim 4, characterized in that: The air inlet pipe (7) is connected to the dust separation chamber (10) via the air inlet port (9), and the dust separation chamber (10) is connected to the dust collection chamber (11) via the dust outlet port (12).

6. The double-dust chamber cyclone dust-blocking handheld vacuum cleaner according to claim 5, characterized in that: A baffle (13) is provided on one side of the dust outlet (12).

7. The double-dust chamber cyclone dust-blocking handheld vacuum cleaner according to claim 1, characterized in that: A bracket (14) is installed in the housing (1), the dust and gas separator (3) is sleeved on the bracket (14), and filter cotton (15) is installed in the bracket (14).

8. The double-dust chamber cyclone dust-blocking handheld vacuum cleaner according to claim 7, characterized in that: A fan (16) is installed on the other side of the bracket (14), and the dust and gas separator (3) is connected to the fan (16) via the filter cotton (15).

9. The double dust chamber cyclone dust blocking handheld vacuum cleaner according to claim 1, characterized in that: The housing (1) is also provided with a hand-held portion (17), and the hand-held portion (17) is provided with a switch (18).

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