CN203738747U - Dust collecting accessory - Google Patents

Abstract

The utility model discloses a dust collection accessory, which comprises: a dust collection pipe, a self-driven adsorption device, a dust storage assembly arranged in the air duct cavity of the dust collection pipe, and the self-driven adsorption device is located at the first position far away from the air duct cavity. One side of the end and the dust collection pipe form a whole, and the dust storage assembly is arranged between the first end of the air duct cavity and the wind source assembly of the self-driven adsorption device; the utility model is beneficial in that: the utility model dust collection The attachment can be connected with the electric tool to achieve the purpose of removing and collecting dust generated during the use of the tool, so that the user can work more conveniently and cleanly. It avoids the impact of dust on the user's health, saves working time, improves work efficiency, and can maximize the experience of DIY users. It is small, flexible, and can independently and actively vacuum.

Description

A dust collection accessory

technical field

The utility model relates to an electric tool auxiliary device, in particular to a dust collecting device for assisting the electric tool to collect dust. the

Background technique

Power tools such as electric drills, sanders, circular saws, etc. will generate a lot of dust during use, which will enter the human body (eyes, ears, mouth, nose) and affect health. Excessive dust will pollute the working environment. Follow-up The cleaning work is time-consuming and labor-intensive, and often the time spent cleaning dust far exceeds the time spent in actual operation. Although household vacuum cleaners can also be used to remove dust in conjunction with tools, due to factors such as their bulky size and the location of the power supply, etc. Can not fully meet the user's requirements. the

With the continuous increase in the number of DIY users, how to remove dust during the use of tools more lightweight and more effectively has become a problem that must be solved. the

Contents of the invention

In order to solve the deficiencies of the prior art, the purpose of the utility model is to provide a dust collecting device for assisting electric tools in collecting dust. the

In order to achieve the above goals, the utility model adopts the following technical solutions:

A dust-collecting accessory, comprising: a dust-collecting pipe with an air duct cavity formed inside and which can be connected to an external dust outlet interface at the first end of the air duct cavity; The source component generates a self-driven adsorption device for absorbing airflow or exhaust airflow at the second end of the air duct cavity of the dust collection pipe, and a dust storage component arranged in the air duct cavity of the dust collection pipe. One side of the first end of the cavity is integrated with the dust collection pipe, and the dust storage assembly is arranged between the first end of the air passage cavity and the air source assembly of the self-driven adsorption device.

Further, the air source assembly of the self-driven adsorption device also includes: a housing assembly, a motor capable of driving the air source assembly, a battery that provides electric energy for the motor, and the battery, air source assembly, and motor are parallel to each other along the output shaft of the motor in the housing assembly. The first direction of is arranged in a straight line. the

Further, the self-driven adsorption device also includes: a control circuit board arranged in the shell assembly and a control switch that can be operated outside the shell assembly, the battery, the wind source assembly, the motor, the control circuit board and the control switch are arranged in a straight line along the first direction arranged. the

Further, the wind source assembly includes: a rotating element that can be driven by a motor to pivot and cause a pressure difference on both sides of the pivoting axis perpendicular to the pivoting axis. the

Further, the battery, the motor, the control circuit board and the control switch form an electrical connection. the

Further, the dust storage assembly includes: a filter element for retaining part of the dust, and an intercepting element capable of blocking the dust on the side close to the first end of the air duct cavity, and the filter element is located at the first end of the intercepting element close to the air duct cavity. side of the end. the

Further, the shell assembly includes an outer cover with two ends through which one end is docked with the dust collection pipe at the second end of the air duct cavity, an end cover installed at the other end of the outer cover, a first guide cabin, a second guide The cabin body, the first diversion cabin body and the second diversion cabin body and the outer cover are provided with a connecting bracket located inside the outer cover for connecting them. The first diversion cabin body is located on the side close to the dust collection pipe, and the second diversion cabin body The diversion cabin is located on a side away from the dust collecting pipe, and the wind source assembly is arranged between the first diversion cabin and the second diversion cabin. the

Further, the end of the first diversion cabin body close to the dust collection pipe goes beyond the outer cover and extends into the air passage cavity, and the part of the first diversion capsule body extending into the dust collection pipe forms a diversion cone structure. the

Further, the dust storage assembly is sleeved on the periphery of the first diversion cabin. the

Further, the end cover is provided with an air outlet hole aligned with the space between the inner wall of the outer cover and the outer wall of the second diversion cabin. the

Further, the battery is arranged in the first diversion compartment, and the motor and the control circuit board are arranged in the second diversion compartment. the

Further, the dust collecting pipe includes: a linear portion having a rotator structure with the axis of the motor output shaft as the axis of rotation. the

Further, the dust collecting pipe further includes: a joint portion bent in a direction deviating from the rotation axis of the straight portion. the

The utility model is beneficial in that: the utility model dust collection accessory can be used in connection with the electric tool, so as to achieve the purpose of removing and collecting dust generated during the use of the tool, so that the user can work more conveniently and cleanly. It avoids the impact of dust on the user's health, saves working time, improves work efficiency, and can maximize the experience of DIY users. It is small, flexible, and can independently and actively vacuum. the

Description of drawings

Fig. 1 is a schematic view of the appearance structure of a preferred embodiment of the dust collection accessory of the present utility model;

Fig. 2 is a schematic diagram of the internal structure of the embodiment shown in Fig. 1;

Fig. 3 is a schematic diagram of the exploded structure of the embodiment shown in Fig. 1 .

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is made concrete introduction. the

Referring to FIGS. 1 to 3 , the dust collection accessory 100 of the present invention includes: a dust collection pipe 10 , a self-driven adsorption device 20 and a dust storage assembly 30 . the

Wherein, the dust collection pipe 10 is formed with an air passage cavity 11 through which two ends pass through, and a part of the self-driven adsorption device 20 and the dust storage assembly 30 are arranged on the air passage passage cavity 11 of the dust collection pipe 10, and the air passage passage cavity 11 The first end is used to dock with the dust outlet of the electric tool, and the self-driving adsorption device 20 is installed from the second end of the air duct passage cavity 11 to the dust collection pipe 10 as a whole, and the self-driving adsorption device 20 is provided with a An air source assembly 21 , the air source assembly 21 generates an adsorption airflow or an exhaust airflow at the second end of the air duct cavity 11 . The suction airflow mentioned here refers to the airflow flowing from the first end of the air duct cavity 11 to the second end when the air source assembly 21 operates in the first mode, and the exhaust airflow refers to the air flow of the air source assembly 21 in the second mode. During operation, the airflow flows from the second end of the air duct cavity 11 to the first end. the

It should be noted that the negative pressure adsorption generated by the self-driven adsorption device 20 is realized by its own electric energy, and does not depend on the external power supply or the power supply of the auxiliary electric tool, and the operation mode of the air source assembly 21 can be selected. and controlled. the

When using the dust collection accessory 100 of the present utility model, use the open end of the dust collection pipe 10 (the end where the first end of the air duct cavity 11 is located) to dock with the dust collection interface provided by the electric tool for discharging dust, and start The power supply of self-driven adsorption device 10 makes the air source assembly 21 operate in the first mode to generate an adsorption airflow. At this time, the dust generated by the electric tool will be continuously adsorbed into the dust collection pipe 10 through the dust collection interface and stored. The dust assembly 30 is blocked and stored therein, and the airflow is also filtered at the dust storage assembly 30 , so that the clean airflow without dust can be discharged from the end of the self-driven adsorption device 20 away from the dust collection pipe 10 . After the electric tool has finished the work, the dust suction attachment of the present utility model is pulled down, the open end of the dust collection pipe 10 is aligned with the container for dust collection, and the power supply of the self-driven adsorption device 10 is started, so that the wind source assembly 21 starts with the second Mode operation generates an exhaust airflow, which can discharge the dust in the dust storage assembly 30, so that the dust collection accessory of the present utility model can be reused. the

Specifically, as shown in FIGS. 2 and 3 , in addition to the wind source assembly 21, the self-driven adsorption device 20 also includes: a housing assembly 22, a motor 23 that can drive the wind source 21 assembly to run, and a battery that provides electrical energy for the motor 23. 24, the control circuit board 25 arranged in the shell assembly 22, the control switch 26 that can be operated outside the shell assembly 22; the battery 24, the wind source assembly 21, the motor 23, the control circuit board 25, and the control switch 26 are in the shell assembly in turn. 22 is arranged in a straight line along the first direction parallel to the output shaft axis 231 of the motor 23; the battery 24, the motor 23, the control circuit board 25, and the control switch 26 form an electrical connection. the

In order not to affect the components such as the battery 24, the motor 23, the control circuit board 25, the control switch 26, etc. by the airflow passing through the self-driven adsorption device 20, as a preferred solution, as shown in Fig. 2 and Fig. 3, the housing assembly 22 includes The outer cover 221 that is connected at both ends and one end of which is connected to the dust collection pipe 10 at the second end of the air duct cavity 11, the end cover 222 installed at the other end of the outer cover 221, the first guide cabin 223, the second guide Cabin 224, the first diversion cabin body 223 and the second diversion cabin body 224 and the outer cover 221 are provided with a connecting bracket 225 that is used to connect them inside the outer cover 221, and the first diversion cabin body 223 is located near the dust collector. On one side of the pipe 10 , the second diversion cabin body 224 is located on the side away from the dust collection pipe 10 , and the wind source assembly 21 is arranged between the first diversion cabin body 223 and the second diversion cabin body 224 . the

As a preference, the outer cover 221 and the dust collection pipe 10 can be connected by threads to form a butt joint. Of course, other fixed structures such as buckles can also be used to facilitate disassembly. The device 20 is disassembled as a whole. the

In order to better fix the dust storage assembly 30 and guide the airflow in the air duct cavity 11, the end of the first guide cabin body 223 close to the dust collection pipe 10 exceeds the outer cover 221 and extends into the air duct cavity 11. A diversion cabin body 223 extends into the dust collecting pipe 10 to form a diversion cone structure. The diversion cone structure referred to here is a conical-like structure whose outer contour gradually increases from the first end to the second end of the air channel cavity 11 . The dust storage assembly 30 is sleeved on the periphery of the first guiding cabin 223 . the

With reference to shown in Figure 2, connecting bracket 225 makes the first diversion cabin body 223 and the second diversion cabin body 224 can be suspended in the outer cover 221, makes the air flow can from the outer cover 221 and the first diversion cabin body 223 and the second diversion cabin body The air duct between the outer walls of the diversion cabin body 224 passes through the self-driven adsorption device 20 without affecting the battery 24, the motor 23, the control circuit board 25, the control panel in the first diversion cabin body 223 and the second diversion cabin body 224. Components such as switch 26 are affected. the

As a further preference, in order to allow the airflow to pass through the end cover 222 , the end cover 222 is provided with an air outlet hole 222 a aligned with the space between the inner wall of the outer cover 221 and the outer wall of the second flow guiding cabin 224 . the

As a preferred solution, the structure of the outer cover 221, the first diversion cabin body 223, the second diversion cabin body 224, and the connecting bracket 225 can be composed of a symmetrical left outer shell 28 and an integral body composed of the outer shell 24. In the left outer shell 28 and the parts that form the outer cover 221, the first diversion cabin body 223, the second diversion cabin body 224, and the connecting bracket 225 from the outer casing 24 are integrally formed. The left outer casing 28 and the right outer casing 29 may be made of plastic material. It should be noted that, in order to make the left outer shell 28 and the right outer shell 29 form an integral body, the following scheme can be adopted. The part of the left outer shell 28 and the right outer shell 29 forming the outer cover 221 is provided with an external thread that can be butted to collect dust. After the pipe 10 and the end cap 222 are screwed on the two ends of the outer cover 221, the left outer casing 28 and the right outer casing 29 are connected as a whole, and the left outer casing 28 and the right outer casing 29 form a part of the first diversion cabin body 223 As far as they are concerned, they are combined into one by a spring collar 25. the

Referring to FIG. 2 and FIG. 3 , the battery 24 is arranged in the first diversion cabin 223 , and the motor 23 and the control circuit board 25 are arranged in the second diversion cabin 224 . Because the first diversion cabin body 223 stretches into the air duct passage cavity 11, it can have a larger size, and the battery 24 can be arranged in it to have a larger electric energy reserve, so as to ensure the battery life of the whole device, the first diversion cabin The body 223 and the second guide cabin 224 and the design that the wind source assembly 21 is arranged between them greatly reduces the size of the part of the self-driven adsorption device 20 outside the dust collection pipe 10, thereby making the size of the whole machine more compact. Small and easy to use, and the first diversion cabin body 223 and the second diversion compartment 224 themselves play a role of diversion in addition to accommodation. the

It should be noted that, in order to install the control switch 26 to the shell assembly 22 and make it a part of the whole device, the base part 261 of the control switch 26 is arranged in the second diversion compartment 224, but in order to allow the user to operate, the control The button part 262 of the switch 26 needs to expose the housing assembly 22, so the end cover 222 is provided with a through hole 222a for the button part 262 to be exposed, and the gap between the control switch 26 and the wall of the through hole 222a should be ensured as much as possible during assembly. Certain measures for sealing and filling. In addition, since the first diversion cabin body 223 and the second diversion cabin 224 are separated by the wind source assembly, the cable 27 routing between the battery 24 to the motor 23, the control circuit board 25, and the control switch 26 is through the connection The interlayer channels 225a and 221a formed in the bracket 225 and the housing 221 are realized. the

Referring to Fig. 2 and Fig. 3, the wind source assembly 21 includes: a rotating element that can be driven by a motor 23 to pivot and cause a pressure difference on both sides perpendicular to the pivot axis when pivoting; and the rotating element can be installed on The fixed assembly on the output shaft of the motor 23. the

Specifically, the rotating element may be a fan 211 , of course, it may be other devices or components that can cause airflow disturbances such as turbines. At this time, the fixing assembly is used to install the fan 211 to connect the shaft 212 and the collar 213 . Wherein, the connecting shaft 212 is first sleeved and fixed on the output shaft of the motor 23 , and then the fan 211 is sleeved on the connecting shaft 212 , and the collar 213 snaps into the fan 211 to fix its axial position on the connecting shaft 212 . the

Referring to Figures 1 and 2, in order to better connect the dust collecting pipe 10 with the external dust collecting interface, as a preferred solution, the dust collecting pipe includes: a rotary body structure with the axis 231 of the output shaft of the motor 23 as the axis of rotation The straight portion 12 and the joint portion 13 bend in a direction that deviates from the rotation axis of the straight portion. The advantage of this is that when there are other structures in the axial direction of the dust collection interface of the electric tool or are easily blocked by objects, the bent dust collection pipe 10 can avoid blocking by deviating from this direction. the

Referring to Fig. 2 and Fig. 3, as a preferred solution, the dust storage assembly 30 includes: a filter element for retaining part of the dust, a retainer element capable of blocking the dust on the side close to the first end of the air channel passage cavity, and a filter element for retaining part of the dust. The piece is located on the side of the retaining piece close to the first end of the air channel cavity. Specifically, filter element can adopt the filter paper 31 of the form shown in Fig. 3, and it surrounds and bends out a lot of pleats around the outer edge of first diversion cabin body 223, and dust is trapped in the pleats when passing through it, And retainer then can adopt a sponge gasket 32, air can pass through the gap of sponge gasket 32, and dust can be intercepted by it. The sponge gasket 32 is limited by the end surface of the outer cover 221 or the washer 33 limited by the end surface of the outer cover 221 . the

The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the industry should understand that the above-mentioned embodiments do not limit the utility model in any form, and all technical solutions obtained by means of equivalent replacement or equivalent transformation all fall within the protection scope of the utility model. the

Claims (13)

1. A dust-collecting accessory, characterized in that it comprises: a dust-collecting pipe that is formed with an air duct cavity inside and can be connected to an external dust outlet interface at the first end of the air duct cavity, and can rely on its own electric energy Drive the air source assembly provided with it to generate an adsorption airflow or exhaust airflow at the second end of the dust collection pipe air duct cavity, a self-driven adsorption device, and a dust storage assembly arranged in the dust collection pipe air duct passage cavity, The above-mentioned self-driven adsorption device forms an integral body with the above-mentioned dust collection pipe on the side away from the first end of the above-mentioned air duct cavity. between source components. 2. The dust collection accessory according to claim 1, characterized in that, in addition to the above-mentioned air source assembly, the above-mentioned self-driven adsorption device also includes: a housing assembly, a motor capable of driving the movement of the above-mentioned air source assembly, and a battery for providing electric energy for the above-mentioned motor , the above-mentioned battery, air source assembly and motor are arranged in a straight line along the first direction parallel to the output shaft of the above-mentioned motor in the above-mentioned housing assembly. 3. The dust collection accessory according to claim 2, characterized in that, the above-mentioned self-driven adsorption device further comprises: a control circuit board arranged in the above-mentioned shell assembly and a control switch that can be operated outside the above-mentioned shell assembly, and the above-mentioned battery , the wind source assembly, the motor, the control circuit board and the control switch are arranged in a straight line along the above-mentioned first direction. 4. The dust collection accessory according to claim 3, wherein the above-mentioned wind source assembly comprises: a rotation that can be driven by the above-mentioned motor to pivot and cause a pressure difference on both sides perpendicular to the pivot axis when pivoting element. 5. The dust collection accessory according to claim 3, characterized in that the battery, the motor, the control circuit board and the control switch form an electrical connection. 6. The dust collection accessory according to claim 1, wherein the dust storage assembly includes: a filter element for retaining part of the dust, capable of blocking the dust on the side close to the first end of the air duct cavity The retaining member, the filter member is located on the side of the retaining member close to the first end of the air duct cavity. 7. The dust collection accessory according to any one of claims 1 to 6, characterized in that, the above-mentioned housing assembly includes a cover with two ends through and one end of which is connected to the second end of the air duct passage cavity with the above-mentioned dust collection pipe 1. The end cap installed on the other end of the above-mentioned outer cover, the first diversion cabin body, and the second diversion cabin body. The connecting brackets used to connect them, the above-mentioned first diversion cabin body is located on the side close to the above-mentioned dust collection pipe, the above-mentioned second diversion cabin body is located on the side away from the above-mentioned dust collection pipe, and the above-mentioned wind source assembly is arranged on the above-mentioned first Between the first diversion cabin and the second diversion cabin. 8. The dust collecting accessory according to claim 7, characterized in that, one end of the first diversion cabin body close to the dust collection pipe exceeds the outer cover and extends into the air duct cavity, and the first diversion cabin The part of the body extending into the above-mentioned dust collecting pipe forms a diversion cone structure. 9. The dust collection accessory according to claim 8, wherein the dust storage assembly is set on the periphery of the first diversion cabin. 10 . The dust collection accessory according to claim 7 , wherein the end cover is provided with an air outlet hole aligned with the space between the inner wall of the outer cover and the outer wall of the second diversion chamber. 11 . 11. The dust collection accessory according to claim 7, wherein the battery is arranged in the first diversion cabin, and the motor and the control circuit board are arranged in the second diversion cabin. 12. The dust collection accessory according to any one of claims 2 to 6, wherein the dust collection pipe comprises: a linear portion having a rotator structure with the axis of the output shaft of the motor as the axis of rotation. 13. The dust collection accessory according to claim 12, wherein the dust collection pipe further comprises: a joint portion bent in a direction deviating from the rotation axis of the linear portion.