A handheld dust cleaning blower

Abstract

This utility model belongs to the technical field of dust removal equipment, specifically relating to a handheld dust cleaning duct, including a shell and a processor, as well as a fixing plate. An exhaust fan, a first filter, and a second filter are sequentially installed on the mounting slot. Two fixing plates are symmetrically installed on the exhaust fan, the first filter, and the second filter via spring telescopic rods. The top surface of the mounting slot has grooves that mate with the fixing plates. The power supply chamber is installed on the shell via an end plug and an end slot on the shell. By setting two DC fans installed in series, the device achieves non-contact cleaning of corners, requiring no water, covering a wide area, cleaning quickly, and with high efficiency. A three-stage filtration and collection system consisting of a protective net, a first filter, and a second filter prevents dust diffusion and transfer, eliminating the need for multiple cleaning cycles.

Description

Technical Field

[0001] This utility model belongs to the technical field of dust removal equipment, specifically relating to a handheld dust cleaning duct. Background Technology

[0002] In the construction and operation of data centers, the requirements for dust cleaning of equipment such as server storage areas, power distribution rooms, UPS battery rooms, cloud centers, energy centers, and equipment distribution boxes and control boxes are becoming increasingly stringent. When cleaning the surface of equipment cabinets such as power distribution boxes on site, staff need to use damp cloths and utility knives to clean the dust in the corners. For cabinets with live wires, power needs to be disconnected before cleaning and power needs to be restored after the cabinets have dried. This results in low dust cleaning efficiency and poor cleaning effect. When manually cleaning the dust in the corners, staff need to wipe the corners of the cabinets repeatedly, which increases the labor intensity of the staff. Utility Model Content

[0003] This invention provides a handheld dust cleaning nozzle to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a handheld dust cleaning blower, comprising a housing and a processor, the housing having four mounting slots, a power supply compartment mounted at the end of the housing, the processor mounted on the power supply compartment, and a fixing plate, an exhaust fan, a first filter, and a second filter sequentially mounted on the mounting slots, two fixing plates symmetrically mounted on the exhaust fan, the first filter, and the second filter via spring telescopic rods, the top surface of the mounting slot having a groove that mates with the fixing plate, and the power supply compartment mounted on the housing via an end plug and an end slot of the housing.

[0005] Preferably, the end of the outer shell is provided with a symmetrical arc-shaped block, and an arc-shaped fixing block is installed on the outer wall of the arc-shaped block by a spring. An unlocking ring is rotatably installed on the power supply compartment. The end face of the unlocking ring is provided with a groove that cooperates with the arc-shaped block and the arc-shaped fixing block. The side wall of the groove on the end face of the unlocking ring is provided with an unlocking groove.

[0006] Preferably, the energy supply compartment and the unlocking ring have matching protrusions and grooves on their opposite sidewalls, and the protrusions on the sidewalls of the energy supply compartment and the grooves on the inner wall of the unlocking ring are connected by a spring telescopic rod.

[0007] Preferably, the side walls of the exhaust fan, the first filter, and the second filter are provided with positioning blocks that cooperate with the outer casing.

[0008] Preferably, the air inlet end face of the outer casing is provided with a threaded groove, and the protective mesh is installed on the threaded groove provided on the outer casing by means of threads.

[0009] Preferably, a conical insert is installed on the side wall of the unthreaded end face groove of the outer shell by a spring, and the protective net is provided with a groove that mates with the insert.

[0010] Preferably, the tip of the conical protrusion of the insert is rotatably fitted with a ball bearing.

[0011] Preferably, the outer shell is L-shaped, the second filter is located at the corner of the outer shell, and the end of the power supply compartment is provided with an annular elastic rope.

[0012] Preferably, the air inlet of the outer casing is equipped with a wind pressure and wind speed sensor, which is connected to the processor and the power supply compartment.

[0013] Preferably, the bottom sidewall of the mounting groove is provided with a groove, and the bottom surfaces of the exhaust fan, the first filter and the second filter are provided with protrusions that cooperate with the groove on the sidewall of the mounting groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention utilizes two DC fans installed in series. The powerful suction generated by these fans creates a low-pressure, high-speed airflow, enabling non-contact cleaning of corners and edges. This method requires no water, covers a wide area, and is fast and efficient. A three-stage filtration system, consisting of a protective net, filter one, and filter two, effectively traps, adsorbs, and collects dust, preventing its spread and transfer. This reduces the need for repeated cleaning and lowers the workload for workers. Replaceable filters one and two allow users to easily replace them based on data from wind pressure and speed sensors, enabling continuous operation across various scenarios, weather conditions, and directions, ensuring the device's high efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 for Figure 2 Schematic diagram of the structure at point A;

[0019] Figure 4This is a schematic diagram of the structure of the exhaust fan installation location in this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the arc-shaped block, the arc-shaped fixing block, and the unlocking groove in this utility model.

[0021] In the diagram: 1. Outer shell; 11. Mounting slot; 12. Power supply chamber; 13. Unlocking ring; 14. Arc-shaped block; 15. Arc-shaped fixing block; 16. Unlocking slot; 2. Protective net; 21. Insert block; 22. Ball bearing; 3. Exhaust fan; 4. Fixing plate; 41. Positioning block; 5. Filter 1; 6. Filter 2; 7. Processor; 71. Wind pressure and wind speed sensor. Detailed Implementation

[0022] Please see Figure 1-5 This utility model provides the following technical solution: a handheld dust cleaning blower, including a shell 1 and a processor 7. The shell 1 is provided with four mounting slots 11. A power supply chamber 12 is installed at the end of the shell 1. The processor 7 is installed on the power supply chamber 12. It also includes a fixing plate 4. A blower 3, a filter 1 5, and a filter 2 6 are installed sequentially on the mounting slots 11. Two fixing plates 4 are symmetrically installed on the blower 3, filter 1 5, and filter 2 6 through spring telescopic rods. The top surface of the mounting slot 11 is provided with a groove that cooperates with the fixing plate 4. The power supply chamber 12 is installed on the shell 1 through the cooperation of the end plug and the end slot of the shell 1.

[0023] The outer casing 1 is used to install the remaining components of the device. The outer casing 1 is made of PBI engineering plastic, which has low density, excellent insulation, and high temperature resistance, ensuring the device's lifespan while reducing its overall weight. The power supply compartment 12 houses a battery for powering the device's electrical components. A processor 7 mounted on the power supply compartment 12 controls the various electrical components. A display screen on the processor 7 shows various data during the device's operation, allowing the user to easily determine the device's status. The power supply compartment 12 is installed on the outer casing 1 via a plug and slot, facilitating easy replacement. When the battery in the power supply compartment 12 is low, the power supply compartment is directly connected to the outer casing. The power supply compartment 12 can be replaced after being removed from the outer casing 1. This replacement method eliminates the need for users to spend time charging the device while it is in use, ensuring that the device's working efficiency is not affected. The side walls of the power supply compartment 12 are curved, making it easy for users to grip. The exhaust fan 3 draws dust into the device's interior, achieving dust removal. Two exhaust fans 3 are sequentially mounted on the outer casing 1. This arrangement increases the static pressure during operation, allowing the device to remove dust from the dust-adhering surface without contact, ensuring the device's working effect. The two exhaust fans 3 operate at the same power, ensuring consistent power output. For effective dust removal, filters 5 and 6 filter one are used to filter the airflow entering the device. Filter two 6 has an exhaust port on its side wall. Dust entering the housing 1 is filtered by filters 5 and 6 and then discharged through the exhaust port of filter two 6. The pores of the filter section of filter one 5 are larger than those of the filter section of filter two 6, achieving secondary filtration of the airflow. As the dust-laden airflow flows inside the housing 1, the dust in the airflow is filtered twice by filters 5 and 6 and then discharged, ensuring the device's effective dust collection. The mounting slot 11 is used to install the exhaust fan 3, filters 5 and 6. During device operation... Users can replace the exhaust fan 3, filter 5, and filter 6 by removing them from the device. This facilitates replacement and prevents dust collected in filters 5 and 6 from affecting airflow within the housing 1, thus ensuring the device's performance. A sealing gasket is provided on the side wall of the mounting slot 11 to seal the gaps between the mounting slot 11 and the exhaust fan 3, filter 5, and filter 6, ensuring the overall airtightness of the housing 1 and preventing dust-laden airflow from leaking into the external environment during its flow within the housing 1. This guarantees the device's effective dust collection.The fixing plate 4 and its corresponding groove serve to fix the exhaust fan 3, filter 5, and filter 6. The bottom raised sidewall of the fixing plate 4 has a triangular protrusion. When the user installs the exhaust fan 3, filter 5, and filter 6 into the mounting groove 11, the inclined surface of the protruding sidewall of the bottom raised portion of the fixing plate 4 contacts the edge of the groove on the top surface of the mounting groove 11, causing the fixing plate 4 to be pushed. During this pushing action, the spring telescopic rod on the fixing plate 4 is compressed, and the bottom raised portion of the fixing plate 4... After the exhaust fan 3, filter 5, and filter 6 are fully installed in the mounting slot 11, the fixing plate 4 is pushed back to its original position by the spring telescopic rod. The protruding side wall of the bottom of the fixing plate 4 enters the corresponding groove, and the fixing plate 4 is fixed. The fixed plate 4 serves to fix the exhaust fan 3, filter 5, and filter 6, ensuring the stability of the exhaust fan 3, filter 5, and filter 6 after they are installed on the outer casing 1. The exhaust fan 3, filter 5, and filter 6 can then be removed. At 6 o'clock, press the fixing plate 4 to disengage the protruding side wall of the bottom of the fixing plate 4 from the groove it matches, thus releasing the fixing plate 4. At this time, the user can remove the exhaust fan 3, filter 5, and filter 6, achieving quick disassembly of the exhaust fan 3, filter 5, and filter 6. The fixing plates 4 are symmetrically set on the exhaust fan 3, filter 5, and filter 6. When the user replaces the exhaust fan 3, filter 5, and filter 6, the two fixing plates 4 need to be subjected to forces in different directions simultaneously to prevent the exhaust fan 3, filter 5, and filter 6 from being damaged. The fixing of filter 2 6 was released due to the accidental movement of fixing plate 4. Fixing plate 4 is located in the side wall grooves of exhaust fan 3, filter 1 5, and filter 2 6. When the user presses fixing plate 4, the user's fingers contact the side wall of the groove where fixing plate 4 is installed. The side wall of the groove provides a point of force application, facilitating the user to remove exhaust fan 3, filter 1 5, and filter 2 6. Exhaust fan 3, filter 1 5, filter 2 6, and processor 7 are common and mature structures, and do not require detailed description in the instruction manual.

[0024] Specifically, the end of the outer shell 1 is provided with a symmetrical arc-shaped block 14, and an arc-shaped fixing block 15 is installed on the outer wall of the arc-shaped block 14 by a spring. An unlocking ring 13 is rotatably installed on the power supply chamber 12. The end face of the unlocking ring 13 is provided with a groove that cooperates with the arc-shaped block 14 and the arc-shaped fixing block 15. The side wall of the groove on the end face of the unlocking ring 13 is provided with an unlocking groove 16.

[0025] When the power supply compartment 12 is installed onto the outer casing 1, the arc-shaped block 14 enters the groove that mates with it. During this process, the inclined portion of the arc-shaped fixing block 15 pushes it into the slot where it is installed, ensuring that the arc-shaped fixing block 15 does not obstruct the arc-shaped block 14 from entering the groove. When the arc-shaped block 14 enters the groove, the top surface of the arc-shaped fixing block 15 contacts the top sidewall of the groove, at which point the arc-shaped fixing block 15 is fixed in place. 5 serves to fix the arc-shaped block 14. The fixed arc-shaped block 14 ensures the stability of the power supply compartment 12 after it is installed on the outer shell 1. The groove that cooperates with the arc-shaped block 14 is set on the unlocking ring 13. The unlocking ring 13 is rotatably installed on the power supply compartment 12. When the user releases the fixing of the arc-shaped block 14, he rotates the unlocking ring 13, and the groove that cooperates with the arc-shaped block 14 begins to rotate. As the unlocking ring 13 rotates, the arc-shaped block 14 and the arc-shaped fixing block 15 enter the unlocking groove 16. At this time, the user can separate the arc-shaped block 14 and the unlocking ring 13, realizing the quick disassembly of the power supply compartment 12.

[0026] Specifically, the energy supply chamber 12 and the unlocking ring 13 have matching protrusions and grooves on their opposite side walls, and the protrusions on the side wall of the energy supply chamber 12 and the grooves on the inner wall of the unlocking ring 13 are connected by a spring telescopic rod.

[0027] The shape of the spring telescopic rod ensures that when the spring telescopic rod is compressed to its limit position by the side wall protrusion of the power supply chamber 12 and when the side wall protrusion of the power supply chamber 12 is pushed against the side wall of the groove that it mates with, the arc-shaped block 14 and the arc-shaped fixing block 15 are respectively in the state of mates with the unlocking groove 16 and the state of mates with the groove that it mates with. This ensures that the user can smoothly rotate the arc-shaped block 14 and the arc-shaped fixing block 15 to the position of mates with the unlocking groove 16. The spring telescopic rod plays the role of fixing the unlocking ring 13, ensuring that the unlocking ring 13 will not rotate when it is not subjected to external force, ensuring the stability of the unlocking ring 13 during the use of the device, and thus ensuring the fixing effect of the arc-shaped fixing block 15 and the groove that it mates with on the power supply chamber 12.

[0028] Specifically, the side walls of the exhaust fan 3, filter 1 5 and filter 2 6 are provided with positioning blocks 41 that cooperate with the outer casing 1.

[0029] After the exhaust fan 3, filter 5 and filter 6 are installed on the mounting slot 11, the positioning block 41 is installed on the mounting slot 11. The shape of the positioning block 41 is the same as the shape of the part of the outer shell 1 with the mounting slot 11. The shape of the positioning block 41 ensures that after the exhaust fan 3, filter 5 and filter 6 are installed on the outer shell 1, the surface of the outer shell 1 is in a flat state, ensuring that the surface of the device will not be uneven, improving the user's comfort when holding the device and the aesthetics of the device.

[0030] Specifically, the air inlet end face of the outer casing 1 is provided with a threaded groove, and the protective net 2 is installed on the threaded groove provided on the outer casing 1 by means of threads.

[0031] The protective net 2 is used to perform preliminary filtration of the airflow sent into the housing 1 by the fan. The protective net 2 will filter out larger debris, preventing the exhaust fan 3 from being damaged due to larger debris entering the exhaust fan 3. The protective net 2 is installed on the housing 1 by threads, and the installation method of the protective net 2 makes it easy for the user to disassemble the protective net 2.

[0032] Specifically, a conical insert 21 is installed on the side wall of the end face of the outer shell 1 without threads by means of a spring, and the protective net 2 is provided with a groove that mates with the insert 21.

[0033] During the process of the protective net 2 entering the threaded groove on the end face of the outer shell 1, the protective net 2 will push the insert 21. As the protective net 2 moves, the pushed insert 21 enters the groove for installing the insert 21, ensuring that the insert 21 will not obstruct the user from installing the protective net 2. After the protective net 2 is installed on the threaded groove on the end face of the outer shell 1, the insert 21 enters the groove that matches it under the action of the spring. The matching of the insert 21 and the groove that matches it plays a limiting role, ensuring the stability of the protective net 2 after it is installed on the outer shell 1. During the process of the user rotating the protective net 2, the shape of the conical end face of the insert 21 ensures that the rotating protective net 2 can smoothly push the insert 21, ensuring that the insert 21 will not obstruct the user from disassembling the protective net 2.

[0034] Specifically, the tip of the conical protrusion of the insert 21 is rotatably fitted with a ball bearing 22.

[0035] During the process of the insert block 21 being pushed, the ball bearing 22 will be rotated. The rotating ball bearing 22 reduces the wear on the insert block 21 and the protective net 2 during the rotation of the protective net 2, and extends the service life of the insert block 21 and the protective net 2.

[0036] Specifically, the outer casing 1 is L-shaped, the filter 2 6 is located at the corner of the outer casing 1, and the end of the power supply compartment 12 is provided with a ring-shaped elastic rope.

[0037] When the user cleans dust using the device, the user holds the shorter end of the outer casing 1. The power supply chamber 12 is located on the shorter end of the outer casing 1. When the user holds the shorter end of the outer casing 1, the air inlet on the longer end of the outer casing 1 faces the direction of the user's hand, making it easy for the user to adjust the position of the device to handle dust. When using the device, the elastic cord on the power supply chamber 12 is hung on the wrist. If the device is accidentally released, the elastic cord can prevent the device from falling to the ground and prevent the device from being damaged due to falling.

[0038] Specifically, the air inlet of the outer casing 1 is equipped with a wind pressure and wind speed sensor 71, which is connected to the processor 7 and the power supply compartment 12.

[0039] The wind pressure and wind speed sensor 71 is used to detect the wind speed and wind pressure of the airflow entering the housing 1. The processor 7 is used to process the data obtained by the wind pressure and wind speed sensor 71. When too much debris accumulates inside the first filter 5 and the second filter 6, the airflow will be obstructed, which will affect the wind speed at the air inlet of the housing 1. By observing the changes in the data measured by the wind pressure and wind speed sensor 71, the operator can quickly determine whether the first filter 5 and the second filter 6 need to be replaced. The wind pressure and wind speed sensor 71 is a common and mature structure and does not need to be described in detail in the instruction manual.

[0040] Specifically, the bottom side wall of the mounting groove 11 is provided with a groove, and the bottom surfaces of the exhaust fan 3, filter 1 5 and filter 2 6 are provided with protrusions that cooperate with the grooves on the side wall of the mounting groove 11.

[0041] After the exhaust fan 3, filter 5, and filter 6 are installed on the mounting slot 11, they enter the side wall groove of the mounting slot 11. The side wall groove of the mounting slot 11 and the corresponding protrusion act as a limit, ensuring the stability of the exhaust fan 3, filter 5, and filter 6 after installation on the mounting slot 11. The bottom protrusions of the exhaust fan 3, filter 5, and filter 6 are offset to one side, which realizes the positioning of the exhaust fan 3, filter 5, and filter 6 and avoids the situation where the exhaust fan 3, filter 5, and filter 2 are installed in the opposite direction during the installation process.

[0042] The working principle and usage process of this utility model are as follows: When the exhaust fan 3 is turned on, outside air is drawn into the interior of the outer casing 1 by the two exhaust fans 3. The air inlet of the outer casing 1 is moved to the location requiring cleaning. Dust is drawn into the interior of the outer casing 1 by the airflow. The airflow carrying dust is discharged from the outer casing 1 after multiple filtrations by the protective net 2, filter 5, and filter 6, thus achieving dust collection. When it is necessary to replace the exhaust fan 3, filter 5, and filter 6, the device is turned off, and the fixing plate 4 is pressed. The protruding side wall protrusion at the bottom of the fixing plate 4 disengages from the corresponding groove, releasing the fixing plate 4 from the exhaust fan 3, filter 5, and filter 6. The exhaust fan 3, filter 5, and filter 6 are then removed from the mounting slot 11, achieving disassembly of the exhaust fan 3, filter 5, and filter 6. The new exhaust fan 3, filter 5, and filter 6 are then installed into the mounting slot 11. During the installation of filter 26 onto the mounting slot 11, the fixing plate 4 is pushed up. After the exhaust fan 3, filter 15, and filter 26 are fully installed onto the mounting slot 11, the protruding side wall of the bottom of the fixing plate 4 enters into the corresponding groove, and the fixing plate 4 fixes the exhaust fan 3, filter 15, and filter 26 in place. When replacing the power supply chamber 12, the unlocking ring 13 is rotated, and the arc-shaped block 14 and the arc-shaped fixing block 15 are screwed into the unlocking slot 16, separating the outer shell 1 and the power supply chamber 12, thus achieving the disassembly of the power supply chamber 12. The unlocking ring 13 is released, and the unlocking ring 13 rotates back to its original position under the action of the spring telescopic rod. The new power supply chamber 12 is installed onto the outer shell 1, and the arc-shaped fixing block 15 is pushed into the groove for installing the arc-shaped fixing block 15. After the power supply chamber 12 is fully installed onto the outer shell 1, the arc-shaped block 14 is fully inserted into the corresponding groove, and the arc-shaped fixing block 15 is inserted into the corresponding groove under the action of the spring, thus fixing the power supply chamber 12.

[0043] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A handheld dust cleaning blower, comprising a housing (1) and a processor (7), wherein the housing (1) is provided with four mounting slots (11), and a power supply compartment (12) is installed at the end of the housing (1), and the processor (7) is installed on the power supply compartment (12), characterized in that: It also includes a fixing plate (4), an exhaust fan (3), a filter one (5), the exhaust fan (3) and the filter two (6) are installed in sequence on the mounting groove (11). The exhaust fan (3), the filter one (5) and the filter two (6) are symmetrically installed with two fixing plates (4) by means of spring telescopic rods. The top surface of the mounting groove (11) is provided with a groove that cooperates with the fixing plate (4). The power supply chamber (12) is installed on the outer shell (1) by means of the cooperation between the end face plug and the end slot of the outer shell (1).

2. The handheld dust cleaning blower according to claim 1, characterized in that: The outer shell (1) has a symmetrical arc-shaped block (14) at its end. An arc-shaped fixing block (15) is installed on the outer wall of the arc-shaped block (14) by a spring. An unlocking ring (13) is rotatably installed on the energy supply chamber (12). The end face of the unlocking ring (13) has a groove that cooperates with the arc-shaped block (14) and the arc-shaped fixing block (15). The side wall of the groove on the end face of the unlocking ring (13) has an unlocking groove (16).

3. The handheld dust cleaning blower according to claim 2, characterized in that: The power supply chamber (12) and the unlocking ring (13) have matching protrusions and grooves on their opposite sidewalls. The protrusions on the sidewall of the power supply chamber (12) and the grooves on the inner wall of the unlocking ring (13) are connected by a spring telescopic rod.

4. The handheld dust cleaning blower according to claim 1, characterized in that: The side walls of the exhaust fan (3), the first filter (5) and the second filter (6) are provided with positioning blocks (41) that cooperate with the outer shell (1).

5. A handheld dust cleaning blower according to claim 1, characterized in that: The air inlet end face of the outer shell (1) is provided with a threaded groove, and the protective net (2) is installed on the threaded groove provided on the outer shell (1) by means of threads.

6. A handheld dust cleaning blower according to claim 5, characterized in that: On the side wall of the outer shell (1) where the end face thread groove is not threaded, a plug (21) with a conical end face shape is installed by a spring. The protective net (2) is provided with a groove that cooperates with the plug (21).

7. A handheld dust cleaning blower according to claim 6, characterized in that: The tip of the conical protrusion of the insert (21) is rotatably fitted with a ball (22).

8. A handheld dust cleaning blower according to claim 1, characterized in that: The outer shell (1) is L-shaped, the filter (6) is located at the corner of the outer shell (1), and the end of the power supply chamber (12) is provided with an annular elastic rope.

9. A handheld dust cleaning blower according to claim 1, characterized in that: The air inlet of the outer casing (1) is equipped with a wind pressure and wind speed sensor (71), which is connected to the processor (7) and the power supply compartment (12).

10. A handheld dust cleaning blower according to claim 1, characterized in that: The bottom side wall of the mounting groove (11) is provided with a groove, and the bottom surfaces of the exhaust fan (3), the first filter (5) and the second filter (6) are provided with protrusions that cooperate with the side wall groove of the mounting groove (11).

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