Drawing type mute woodworking dust collector

Abstract

The utility model discloses a drawing type mute woodworking dust collector which comprises an installation box body, a dust collection bin and a filter element assembly. A first containing cavity with an opening in one side is formed in the mounting box body, and the dust collecting bin is inserted into the first containing cavity from the opening of the first containing cavity; a host interface used for being connected into a dust collection pipeline is further mounted on the other side of the mounting box body and located above the dust collection bin; the inner walls of the two sides of the first containing cavity are located above the dust collection bin and are each provided with a first sliding groove penetrating to an opening of the first containing cavity, and the filter element assembly is inserted into the first containing cavity through the first sliding grooves; a supporting plate is further connected to the position, located above the filter element assembly, in the first containing cavity, and an air inlet hole penetrating through the first containing cavity is further formed in the supporting plate. The dust collection bin is provided with the acrylic observation window, the storage condition in the dust collection bin can be visually observed, excessive filling is avoided, meanwhile, the dust collection bin is cleaned in a pull-out mode, and cleaning convenience and safety are improved.

Description

Technical Field

[0001] This utility model relates to the field of vacuum cleaner technology, and in particular to a pull-out silent woodworking vacuum cleaner. Background Technology

[0002] Existing woodworking vacuum cleaners have the following shortcomings in actual use:

[0003] 1) Severe noise pollution: In pursuit of strong suction, existing woodworking vacuum cleaners usually use high-speed fans (speed greater than 10,000 rpm), which makes their noise generally exceed 75 decibels, and can even reach more than 90 decibels under extreme working conditions. Long-term exposure to such a high-noise environment can easily lead to hearing damage in workers and seriously affect their physical health.

[0004] 2) High maintenance costs: The filter of traditional woodworking vacuum cleaner is fixed inside the body. Replacing the filter requires removing multiple screws, which takes more than 15 minutes. Moreover, since the filter needs to be replaced frequently, this undoubtedly increases the cost of use and brings a large economic burden to users.

[0005] 3) Inconvenient dust collection chamber cleaning: Most existing woodworking vacuum cleaners have a closed dust collection chamber, which easily generates dust when dumping sawdust, polluting the environment and potentially harming workers' respiratory health. In addition, the inability to quickly observe the internal capacity of the dust collection chamber often leads to untimely cleaning or overfilling, affecting the normal use of the vacuum cleaner. Utility Model Content

[0006] The purpose of this invention is to provide a pull-out silent woodworking vacuum cleaner to solve the above-mentioned problems.

[0007] To achieve the above objectives, the following technical solution is adopted:

[0008] A pull-out silent woodworking vacuum cleaner includes a mounting housing, a dust collection chamber, and a filter assembly. The mounting housing has a first cavity with an opening on one side, into which the dust collection chamber is inserted. A main unit interface for connecting to a vacuum pipe is installed on the other side of the mounting housing above the dust collection chamber. A first sliding groove extending to the opening of the first cavity is formed on each of the inner walls of the first cavity above the dust collection chamber, through which the filter assembly is inserted. A support plate is connected above the filter assembly within the first cavity, and an air inlet hole extending into the first cavity is formed on the support plate. A centrifugal fan is installed on the top of the support plate corresponding to the air inlet hole. An outer casing cover enclosing the centrifugal fan is installed on the top of the mounting housing. An outer casing cover plate for sealing the opening of the first cavity is connected to one side of the dust collection chamber.

[0009] Furthermore, the air inlet of the centrifugal fan is arranged adjacent to the air inlet hole opened on the support plate, and a silicone sealing ring is also installed at the air inlet of the centrifugal fan; a fan bracket is also installed on the support plate, and several fixed vertical plates are connected to the fan bracket; a first fixing hole is opened on the fixed vertical plate, and the first fixing hole is used to install screws to lock the centrifugal fan to one side of the fixed vertical plate; a speed adjustment knob connected to the centrifugal fan is also installed at one end of the outer casing cover.

[0010] Furthermore, shock-absorbing cotton is also filled between one side of the fixed vertical plate and the outer casing of the centrifugal fan.

[0011] Furthermore, a mounting bracket is installed on each of the two inner walls of the first cavity, and a first sliding groove is opened on one side of the mounting bracket along the length direction of the mounting bracket; the filter element assembly includes a non-woven bag and filter paper arranged inside the non-woven bag.

[0012] Furthermore, the outer casing cover has a first mounting hole extending vertically into the dust collection chamber, and an observation window is also embedded in the first mounting hole; a scale is also arranged vertically on one side of the observation window on the outer casing cover; and a first handle is also installed on the outer casing cover.

[0013] Furthermore, an elastic buckle is installed at each end of the mounting box near the opening of the first cavity. The elastic buckle is used to lock the outer cover plate onto the mounting box.

[0014] Furthermore, a second mounting hole is provided on the other side of the mounting box, and a main unit bracket is installed in the second mounting hole; the main unit interface is installed on the side of the main unit bracket away from the first cavity; a dust-blocking cloth is also installed on the upper part of the other side of the main unit bracket, and the lower part of the dust-blocking cloth is arranged inclined towards the dust collection bin.

[0015] Furthermore, the inner wall of the first cavity is also equipped with a flow guide bracket with an annular structure, and the flow guide bracket is located between the dust collection bin and the host interface; the inner wall of the flow guide bracket is also connected with a flow guide plate that is inclined towards the dust collection bin.

[0016] Furthermore, a handle is installed at each end of the mounting box, and a caster wheel is installed at each of the four corners of the bottom of the mounting box; a cable hook is also installed on the side of the mounting box where the host interface is located.

[0017] Furthermore, a pull ring is installed at the other end of the outer box cover; several ventilation holes are provided on both sides of the outer box cover; a power socket and a pipe buckle are also installed on one side of the outer box cover.

[0018] By adopting the above solution, the beneficial effects of this utility model are:

[0019] 1) Significantly improved noise reduction performance: By adopting a low-pressure centrifugal fan with a speed of ≤3000rpm and equipped with noise reduction structures such as silicone sealing rings and shock-absorbing cotton, the overall operating noise is ≤65 decibels (test standard GB / T 4214.1-2017), which is at least 30% lower than traditional woodworking vacuum cleaners. This effectively reduces noise pollution, protects the hearing health of workers, and creates a more comfortable working environment for them.

[0020] 2) Significantly improved maintenance efficiency: The filter cartridge adopts a pull-out design, with a replacement time of ≤2 minutes. At the same time, the dust collection chamber also supports pull-out cleaning, with a cleaning time of ≤1 minute. This design greatly shortens maintenance time, reduces overall maintenance costs, and improves the efficiency of the vacuum cleaner.

[0021] 3) Significantly enhanced filtration efficiency: Utilizing a dual-layer filtration design, the outer layer is a replaceable non-woven fabric bag, and the inner layer is a pre-filter paper. Wood chip collection rate ≥99%, dust emission concentration ≤1mg / m³. 3 (Testing standard GB / T 16157-2018) This not only effectively collects sawdust, but also reduces dust emissions, improves air quality, and helps protect the health of workers.

[0022] 4) The dust collection bin is equipped with an acrylic observation window, which allows for direct observation of the internal storage conditions and avoids overfilling. At the same time, the dust collection bin adopts a pull-out cleaning method, which improves the convenience and safety of cleaning. In addition, the inner wall of the first cavity is designed with a flow guide bracket, and a dust-blocking cloth is installed at the main unit interface. While guiding the collected wood chips into the dust collection bin, it can also intercept light dust, improving its overall performance. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 for Figure 1 A structural diagram from another perspective;

[0025] Figure 3 This is an exploded view of the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of this utility model omitting the outer box cover;

[0027] Figure 5 for Figure 4 A structural diagram omitting the centrifugal fan;

[0028] Figure 6 This is a schematic diagram of the structure of this utility model with part of the shell omitted;

[0029] The following are explanations of the labels in the attached diagram:

[0030] 1. Housing; 2. Dust collection chamber; 3. Filter assembly; 4. Centrifugal fan; 5. Outer casing cover; 6. Outer casing cover plate; 11. Main unit interface; 12. First slide rail; 13. Support plate; 14. Silicone sealing ring; 15. Fan bracket; 16. Fixed vertical plate; 17. Speed ​​control knob; 18. Shock-absorbing cotton; 61. Observation window; 62. First handle; 101. Elastic buckle; 102. Main unit bracket; 103. Dust shield; 104. Air guide bracket; 105. Air guide plate; 106. Handle; 107. Casters; 108. Cable hook; 109. Pull ring; 110. Power socket; 100. Pipe clamp. Detailed Implementation

[0031] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] Reference Figures 1 to 6 As shown, this utility model provides a pull-out silent woodworking vacuum cleaner. In one embodiment, it includes a mounting housing 1, a dust collection chamber 2, and a filter assembly 3. The mounting housing 1 has a first cavity with an opening on one side, and the dust collection chamber 2 is inserted into the first cavity through the opening. On the other side of the mounting housing 1, above the dust collection chamber 2, a main unit interface 11 for connecting to a vacuum pipe is also installed. On the inner walls of both sides of the first cavity, above the dust collection chamber 2, there is a through-hole extending to the opening of the first cavity. The filter element assembly 3 is inserted into the first cavity through the first slide groove 12; a support plate 13 is connected above the filter element assembly 3 in the first cavity, and an air inlet hole is opened on the support plate 13 to penetrate into the first cavity; a centrifugal fan 4 is installed on the top of the support plate 13 corresponding to the air inlet hole; an outer cover 5 that encloses the centrifugal fan 4 is installed on the top of the mounting box 1; an outer cover plate 6 for sealing the opening of the first cavity is connected to one side of the dust collection bin 2.

[0033] In this embodiment, the centrifugal fan 4 is a low-pressure fan with a speed of ≤3000rpm, and is equipped with a fan starting capacitor to ensure smooth start-up. The air inlet of the centrifugal fan 4 is arranged adjacent to the air inlet hole on the support plate 13, and a silicone sealing ring 14 is installed at the air inlet of the centrifugal fan 4. A fan bracket 15 is also installed on the support plate 13, and several fixed vertical plates 16 are connected to the fan bracket 15. The fixed vertical plates 16 have a first fixing hole for installing screws to lock the centrifugal fan 4 to one side of the fixed vertical plate 16. One end of the outer casing cover 5 is also equipped with a speed adjustment knob 17 (using stepless knob adjustment, output power range 10W-2000W) connected to the centrifugal fan 4.

[0034] In this embodiment, a circular air inlet hole with a diameter of 120mm is opened on the support plate 13. The air inlet hole is close to the air inlet of the centrifugal fan 4, without any additional air guide channel, reducing airflow turbulence noise. At the same time, the air inlet of the centrifugal fan 4 is equipped with a silicone sealing ring 14, which is fixed to the support plate 13 by four stainless steel screws to prevent airflow leakage and suction loss. In addition, one side of the fixed vertical plate 16 is filled with shock-absorbing cotton 18 between it and the outer shell of the centrifugal fan 4. The side of the centrifugal fan 4 is further fixed by the fan bracket 15, and the space between the fan bracket 15 and the outer wall of the fan is filled with polyurethane shock-absorbing cotton 18 (thickness 2mm, density 50kg / m³). 3 This is to reduce fan vibration and noise.

[0035] In summary, by equipping the machine with noise reduction structures such as silicone sealing ring 14 and shock-absorbing cotton 18, the overall operating noise is ≤65 decibels (test standard GB / T 4214.1-2017), which is at least 30% lower than traditional woodworking vacuum cleaners. This effectively reduces noise pollution, protects workers' hearing health, and creates a more comfortable working environment for workers.

[0036] In one embodiment, a mounting bracket is installed on each of the inner walls of the first cavity, and a first sliding groove 12 is formed on one side of the mounting bracket along its length. The filter element assembly 3 includes a non-woven bag and filter paper arranged inside the non-woven bag. The filter element assembly 3 adopts a pull-out design for easy replacement (replacement time ≤ 2 minutes) and a double-layer filtration design, with the outer layer being a replaceable non-woven bag (80g / m³). 2 The filter has a filtration accuracy of 5μm and an inner layer of pre-filter paper (filtration accuracy of 5μm and dust holding capacity of 100g). In a preferred embodiment, the non-woven bag is replaced every 50 hours of operation and the filter element is cleaned every 200 hours.

[0037] In one embodiment, the outer casing cover 6 has a first mounting hole extending vertically into the dust collection bin 2, and an observation window 61 is also embedded in the first mounting hole; a scale is also arranged vertically on one side of the observation window 61 on the outer casing cover 6; a first handle 62 (aluminum alloy handle, load-bearing capacity 20kg) is also installed on the outer casing cover 6. Two sets of observation windows 61 are provided, each 3mm thick, with a light transmittance ≥92%. A scale (maximum capacity 20L) is also provided, allowing for direct observation of the internal storage conditions of the dust collection bin 2, preventing overfilling. Furthermore, the dust collection bin 2 adopts a pull-out cleaning method, improving the convenience and safety of cleaning.

[0038] Meanwhile, an elastic buckle 101 is installed at each end of the mounting box 1 near the opening of the first cavity. The elastic buckle 101 is used to lock the outer box cover 6 onto the mounting box 1. The elastic buckle 101 adopts a spring locking structure with an unlocking force ≤10N. A partition is also connected to the lower part of the first cavity. After the dust collection bin 2 is pushed onto the partition in the first cavity, the buckle is fastened until a "click" sound confirms that it is locked.

[0039] In one embodiment, a second mounting hole is provided on the other side of the mounting housing 1, and a main unit bracket 102 is also installed in the second mounting hole; the main unit interface 11 is installed on the side of the main unit bracket 102 away from the first cavity; a dust-blocking cloth 103 is also installed on the upper part of the other side of the main unit bracket 102, and the lower part of the dust-blocking cloth 103 is arranged inclined towards the dust collection bin 2; the main unit interface 11 is fixed by the main unit bracket 102, and a sealing ring (Shore hardness 50A) is provided on the surface of the main unit bracket 102. The surface is covered with a dust-blocking cloth 103 (polyester material, porosity ≤10%), which has a dust interception efficiency of ≥95%. At the same time, the inner wall of the first cavity is also equipped with a flow guide bracket 104 with a ring structure, and the flow guide bracket 104 is located between the dust collection chamber 2 and the host interface 11. The inner wall of the flow guide bracket 104 is also connected to a flow guide plate 105 that is inclined towards the dust collection chamber 2. While guiding the collected wood chips into the dust collection chamber 2, the dust-blocking cloth 103 intercepts light dust, thereby improving its overall performance.

[0040] In one embodiment, a handle 106 is installed at each end of the mounting box 1, and a caster wheel 107 is installed at each of the four corners of the bottom of the mounting box 1; a cable hook 108 is also installed on the side of the mounting box 1 where the host interface 11 is located, and the power cord (standard length 1.2m, optional 10mm power cord with winding reel) is stored through the cable hook 108. The bottom caster wheel 107 (PU silent wheel) supports 360° rotation. In addition, a pull ring 109 is installed at the other end of the outer box cover 5; several ventilation holes are opened on both sides of the outer box cover 5; a power socket 110 and a pipe clip 100 are also installed on one side of the outer box cover 5.

[0041] The specific workflow is as follows:

[0042] 1) After the power is turned on, the centrifugal fan 4 generates negative pressure, and the outside air enters the main unit interface 11 through the dust suction hose (the diameter can be selected as 40mm, 50mm, 63mm, or 100mm);

[0043] 2) The sawdust in the mixed airflow settles into the dust collection bin 2 due to gravity, and the light dust is intercepted and slowed down by the dust-blocking cloth 103 before falling into the bin;

[0044] 3) The remaining air is filtered twice by the filter element assembly 3 and then discharged by the centrifugal fan 4.

[0045] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pull-out silent woodworking vacuum cleaner, characterized in that, The device includes a mounting housing, a dust collection chamber, and a filter assembly. The mounting housing has a first cavity with an opening on one side, into which the dust collection chamber is inserted. Above the dust collection chamber, a main unit interface for connecting to a vacuum pipe is installed on the other side of the mounting housing. Each of the inner walls of the first cavity has a first groove extending to the opening of the first cavity, through which the filter assembly is inserted. A support plate is connected above the filter assembly within the first cavity, and an air inlet hole extending into the first cavity is also provided on the support plate. A centrifugal fan is installed on the top of the support plate corresponding to the air inlet hole. An outer casing cover enclosing the centrifugal fan is installed on the top of the mounting housing. An outer casing cover plate is connected to one side of the dust collection chamber to seal the opening of the first cavity.

2. The pull-out silent woodworking vacuum cleaner according to claim 1, characterized in that, The air inlet of the centrifugal fan is arranged adjacent to the air inlet hole on the support plate, and a silicone sealing ring is installed at the air inlet of the centrifugal fan; a fan bracket is also installed on the support plate, and several fixed vertical plates are connected to the fan bracket; a first fixing hole is opened on the fixed vertical plate, which is used to install screws to lock the centrifugal fan to one side of the fixed vertical plate; a speed adjustment knob connected to the centrifugal fan is also installed at one end of the outer casing cover.

3. The pull-out silent woodworking vacuum cleaner according to claim 2, characterized in that, The space between one side of the fixed vertical plate and the outer casing of the centrifugal fan is also filled with shock-absorbing cotton.

4. The pull-out silent woodworking vacuum cleaner according to claim 1, characterized in that, A mounting bracket is installed on each of the two inner walls of the first cavity, and a first sliding groove is opened on one side of the mounting bracket along the length direction of the mounting bracket; the filter element assembly includes a non-woven bag and filter paper arranged inside the non-woven bag.

5. The pull-out silent woodworking vacuum cleaner according to claim 1, characterized in that, The outer casing cover has a first mounting hole extending vertically into the dust collection chamber, and an observation window is also embedded in the first mounting hole; a scale is also arranged vertically on one side of the observation window on the outer casing cover; and a first handle is also installed on the outer casing cover.

6. The pull-out silent woodworking vacuum cleaner according to claim 5, characterized in that, An elastic buckle is installed at each end of the mounting box near the opening of the first cavity. The elastic buckle is used to lock the outer box cover plate onto the mounting box.

7. The pull-out silent woodworking vacuum cleaner according to claim 1, characterized in that, A second mounting hole is provided on the other side of the mounting box, and a main unit bracket is installed in the second mounting hole; the main unit interface is installed on the side of the main unit bracket away from the first cavity; a dust-blocking cloth is also installed on the upper part of the other side of the main unit bracket, and the lower part of the dust-blocking cloth is arranged at an angle towards the dust collection bin.

8. The pull-out silent woodworking vacuum cleaner according to claim 7, characterized in that, The inner wall of the first cavity is also equipped with a flow guide bracket with an annular structure, and the flow guide bracket is located between the dust collection bin and the host interface; the inner wall of the flow guide bracket is also connected with a flow guide plate that is inclined towards the dust collection bin.

9. The pull-out silent woodworking vacuum cleaner according to claim 1, characterized in that, Each end of the mounting box is equipped with a handle, and each of the four corners of the bottom of the mounting box is also equipped with a caster wheel; a cable hook is also installed on the side of the mounting box where the host interface is located.

10. The pull-out silent woodworking vacuum cleaner according to claim 1, characterized in that, The other end of the outer box cover is also equipped with a pull ring; several ventilation holes are opened on both sides of the outer box cover; a power socket and a pipe buckle are also installed on one side of the outer box cover.

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