Dust collecting device and electric tool machine
By designing the dust collecting device and using the skeleton and clamp structure to support and seal the dust collecting bag, the problem of easy damage and difficulty in pouring of the dust collecting bag of the sander is solved, achieving a higher user experience and dust collection efficiency, and enhancing the device's Strength and convenience.
Patent Information
- Application Number
- CN202323634645.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-29
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2033-12-29
AI Technical Summary
The existing sander dust removal bags are low in strength and easy to damage, and are not easy to pour and replace after collecting dust, which affects the user experience and cannot adapt to the position and affects the operating experience.
A dust collecting device was designed, including a dust collecting bag, a long skeleton and a clamp. The arm of the skeleton supports the dust collecting bag, the clamp seals the dust collecting bag, the wing part is set to increase the internal space and strength, and the opening element is a zipper for convenience. Replace and adjust, the structural design of the skeleton and clamp prevents displacement and rotation, improving the convenience of use.
It realizes the easy replacement, less damage and adjustable position of the dust collector device, improves the user experience and operation convenience, increases the dust collection amount and space, and reduces the use of materials.
Smart Images
Figure CN222222492U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a dust collecting device, in particular to a dust collecting device used for an electric tool machine. Background Art
[0002] Electric machine tools have a variety of usage scenarios, so they are widely used in production and life.
[0003] During the use of electric machine tools, due to frequent operations such as grinding, impacting, drilling, etc., a large amount of dust is often generated, and therefore this dust needs to be collected.
[0004] For example, a sanding machine generates a lot of dust during operation, so dust bags are often used to collect the dust in the prior art.
[0005] However, the existing sanding machine dust bag has low firmness, is easily damaged, is difficult to dump after being full of dust, and is difficult to replace after being damaged, which seriously affects the user experience.
[0006] In addition, when the sanding machine is in an upside-down position, the dust bag cannot be adaptively adjusted, which also affects the user's operating experience. Utility Model Content
[0007] One of the purposes of the utility model is to provide a dust collection device for an electric machine tool, which can, on the basis of satisfying the dust collection function, further achieve the purpose of being easy to replace and not prone to damage, thereby improving the user experience.
[0008] In order to achieve the above object, the utility model proposes a dust collecting device, which comprises:
[0009] a dust bag having an open end;
[0010] An elongated frame having an arm extending in the length direction, the arm extending from the open end into the dust bag to support the dust bag; a dust collecting port is provided at the head end of the arm, the dust collecting port is communicated with the inner space of the dust bag;
[0011] The clamp is sleeved on the periphery of the frame to seal the open end of the dust bag between the clamp and the frame. The clamp is located inside the dust bag in the clamped state.
[0012] Furthermore, in the dust collecting device described in the utility model, the tail end of the arm has a first wing extending to at least one side in the width direction thereof; and / or the middle part of the arm has a second wing extending to at least one side in the width direction thereof.
[0013] Furthermore, in the dust collecting device described in the utility model, an opening element for opening the dust collecting bag is provided on the other end of the dust collecting bag relative to the open end.
[0014] Furthermore, in the dust collecting device described in the utility model, the opening element is configured as a zipper.
[0015] Furthermore, in the dust collecting device described in the utility model, an annular protrusion protruding radially outward is provided on the outer wall of the skeleton, which cooperates with the side wall of the clamp to prevent the clamp from being displaced in the length direction of the skeleton.
[0016] Furthermore, in the dust collecting device described in the utility model, the outer wall of the frame is provided with ribs extending along the length direction thereof, and the ribs are clamped in the clamp to prevent the clamp from rotating relative to the frame.
[0017] Furthermore, in the dust collecting device described in the utility model, the outer circumferential wall of the clamp is provided with an annular rib protruding radially outward.
[0018] Furthermore, in the dust collecting device described in the utility model, the clamp includes at least two clamp halves, and the two clamp halves are connected by a fastener.
[0019] Furthermore, in the dust collecting device described in the utility model, the inner wall contour line of the clamp is circular, and the outer wall contour line is elliptical.
[0020] Another object of the present invention is to provide an electric tool, the dust outlet of which is connected to the dust collecting device as described above.
[0021] Furthermore, in the electric tool of the present invention, the dust collection port of the arm is rotatably connected to the dust outlet end of the electric tool.
[0022] The dust collecting device for an electric machine tool of the present invention, on the basis of satisfying the basic dust collecting function, further achieves the purpose of being easy to replace, having good strength and not easy to be damaged, and being easy to tip over, thereby greatly improving the user experience.
[0023] Likewise, the electric tool machine described in the utility model also provides a better user experience for the operator because the dust collection device is provided. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 A schematic diagram of the overall external structure of the dust collecting device of the utility model in one embodiment is shown.
[0025] Figure 2A three-dimensional structural schematic diagram of the dust collecting device of the utility model in one embodiment is shown in half-section.
[0026] Figure 3 A schematic diagram of the three-dimensional structure of a skeleton connected with a clamp is shown in one embodiment of the dust collecting device described in the utility model.
[0027] Figure 4 A top view of a frame connected with a clamp is shown in one embodiment of the dust collecting device of the utility model.
[0028] Figure 5 The effect of providing wings and not providing wings on the internal space of the dust bag is schematically compared.
[0029] Figure 6 A schematic diagram of the separate structure of a clamp and a frame of the dust collecting device described in the utility model in one embodiment is shown.
[0030] Figure 7 A cross-sectional view of the connection between the clamp and the frame of the dust collecting device described in the utility model in one embodiment is shown.
[0031] Figure 8 The schematic structural diagram of the dust collecting device of the present invention in one embodiment is shown in half-section.
[0032] Fig. 9 The figure shows a front view of the external structure of the dust collecting device described in the utility model in one embodiment. DETAILED DESCRIPTION
[0033] The dust collection device for an electric tool and the electric tool described in the present invention will be further explained and illustrated below in conjunction with the drawings in the specification and specific embodiments. However, such explanation and illustration do not constitute an improper limitation on the technical solution of the present invention.
[0034] When using an electric tool, such as a sander, a lot of dust is generated during operation, so dust bags are often used to collect dust in the prior art. However, the existing dust bags have no supporting structure or use a metal wire as the supporting structure, which results in low strength and small internal space of the dust bags.
[0035] In addition, the current dust bag is connected to the sander by bundling with a bundle of straps, such as cables or wires, which results in a large bulge at the connection, resulting in a poor hand feel when used by users.
[0036] In order to solve the above problems, the utility model provides a dust collecting device in one embodiment.
[0037] Figure 1 A schematic diagram of the overall external structure of the dust collecting device of the utility model in one embodiment is shown.
[0038] Figure 2 A three-dimensional structural schematic diagram of the dust collecting device of the utility model in one embodiment is shown in half-section.
[0039] like Figure 1 and Figure 2 As shown, in this embodiment, the dust collecting device includes: a dust bag 3, which has an open end 31 connected to its internal cavity. An elongated skeleton 1 has an arm 11 extending in the length direction, and the arm 11 extends from the open end 31 of the dust bag 3 into the dust bag 3 to support the dust bag, for example, supporting the dust bag 3 like a hanger; a dust collecting port 12 is provided at the head end of the arm 11, and the dust collecting port 12 is connected to the internal space of the dust bag. Dust output from an electric machine tool, such as a sanding machine, will enter the dust bag 3 through the dust collecting port. The dust bag 3 is fixed to the skeleton 1 by a clamp 2 mounted on the periphery of the skeleton 1, so that the open end 31 of the dust bag 3 is sealed and clamped between the clamp 2 and the skeleton 1. As shown Figure 1 and Figure 2 As shown, the clamp 2 is located inside the dust bag 3 in the clamped state.
[0040] When installing the dust bag 3 on the frame 1, first put the dust bag 3 on the frame 1 through the open end 31, then fold the open end 31 of the dust bag 3 in the opposite direction, and then put the clamp 2 into the dust bag 3 through the other end opposite to the open end, and put it on the frame 1 to achieve sealing and clamping of the open end 31 folded in the opposite direction, and then seal the other end of the dust bag 3 to complete the installation process.
[0041] Figure 3 A schematic diagram of the three-dimensional structure of a skeleton connected with a clamp is shown in one embodiment of the dust collecting device described in the utility model.
[0042] Figure 4 A top view of a frame connected with a clamp is shown in one embodiment of the dust collecting device of the utility model.
[0043] like Figure 3 and Figure 4 As shown, in some more preferred embodiments, the tail end of the arm 11 of the skeleton 1 has a first wing 111 extending in the width direction thereof; the middle portion of the arm 11 has a second wing 112 extending in the width direction thereof. Figure 4 As can be seen from the figure, in this embodiment, the first wing 111 and the second wing 112 both extend from the arm 11 to both sides.
[0044] By providing the extended wing portion, the internal space of the dust bag 3 can be enlarged by increasing the cross-sectional area of the dust bag, which can not only increase the dust collection capacity of the dust bag, but also prevent the dust collection effect from being affected by the inner walls of the dust bag sticking together.
[0045] Figure 5 The effect of providing wings and not providing wings on the internal space of the dust bag is schematically compared.
[0046] like Figure 5 As shown in the figure, the fabric area of the dust bags used in "A" and "B" is the same. It can be seen that for the dust bags with the same fabric area, B is provided with the first wing 111 and / or the second wing 112, which can obtain a larger effective dust collection volume than A without wings. Therefore, when the effective dust collection space is the same, materials can be further saved.
[0047] In addition, the wing portions extending from the width direction of the arm 11 and the arm 11 extending in the length direction also form a cross structure, and this cross structure can further improve the strength of the frame.
[0048] It should be noted that, in some other embodiments, the first wing portion 111 may be provided only at the rear end of the arm 11 , or the second wing portion 112 may be provided only at the middle portion of the arm 11 .
[0049] In addition, in some other embodiments, the first wing 111 or the second wing 112 may also extend from only one side of the arm 11, instead of extending from both sides. Figure 4 As shown, two first wings 111 and two second wings 112 extend from both sides. This arrangement can further save materials. At the same time, in some embodiments, in order to improve the strength of the skeleton and increase the internal space of the dust bag while saving materials, the extending directions of the first wing and the second wing can be set to be opposite.
[0050] Figure 6 A schematic diagram of the separate structure of a clamp and a frame of the dust collecting device described in the utility model in one embodiment is shown.
[0051] like Figure 6 As shown, in some embodiments, in order to facilitate detachability, the clamp 2 is configured to include two clamp halves 21, and the two clamp halves 21 are connected by a fastener 22, such as a screw.
[0052] In this way, when the dust bag needs to be replaced or removed from the frame, it can be easily and conveniently done by simply loosening the clamp. In this process, the user's force application position is on the clamp, so the dust bag will not be damaged due to excessive force. In addition, this setting method will not form a bulge by directly tying the dust bag with a strap like the traditional method, and the user will have a better feel when using and holding it.
[0053] In some embodiments, the inner wall contour of the clamp 2 is circular, so that it can better match the frame and the clamping force applied to the open end of the dust bag is more uniform. The outer wall contour of the clamp 2 is elliptical, which can further improve the comfort of the operator holding the clamp. In some more specific embodiments, the major axis of the ellipse is as follows: Figure 6 The longitudinal axis extends in the height direction as shown and the minor axis extends in the width direction.
[0054] Figure 7 A cross-sectional view of the connection between the clamp and the frame of the dust collecting device described in the utility model in one embodiment is shown.
[0055] like Figure 6 and Figure 7 As shown, in some embodiments, the outer wall of the frame 1 is provided with an annular protrusion 13 protruding radially outward, which cooperates with the side wall 23 of the clamp, thereby limiting the displacement of the clamp 2 along the length direction of the frame to prevent the clamp from moving in the length direction of the frame. Figure 2 As shown, when the open end of the dust bag is clamped between the clamp and the frame, the annular protrusion 13 can also increase the clamping area, thereby further ensuring the tight clamping effect of the dust bag.
[0056] like Figure 6 As shown, in some embodiments, the outer wall of the skeleton 1 also has ribs 14 extending along its length direction.
[0057] like Figure 8 As shown, the rib 14 is clamped in the clamp 2 so that the rib 14 and the clamp 2 have a certain overlap, thereby preventing the clamp 2 from rotating relative to the frame 1.
[0058] Continue reading Figure 6 In some embodiments, the outer wall of the skeleton 1 further has other ribs 15 extending along its length direction. The provision of other ribs 15 can further improve the strength of the skeleton. In addition, when the user holds the skeleton, it can also improve the user's grip comfort.
[0059] In addition, there is an annular rib 24 protruding radially outward on the outer circumferential wall of the clamp, which can further improve the strength of the bone clamp. In addition, when the user holds the clamp 2, it can also improve the user's holding comfort. It can also increase the friction between the user's hand and the clamp, thereby achieving the purpose of saving effort.
[0060] Fig. 9 The figure shows a front view of the external structure of the dust collecting device described in the utility model in one embodiment.
[0061] like Fig. 9 As shown, the other end 32 of the dust bag 3 opposite to the opening end 31 is provided with an opening element for opening the dust bag. Fig. 9 The dust bag in the dust bag is in a closed state, so the opening element cannot be shown. Providing the opening element can realize convenient opening and closing of the dust bag, so that the dust can be dumped when necessary.
[0062] In some more specific embodiments, the opening element may be configured as a zipper. The configuration of the opening element as a zipper can not only quickly realize the opening and closing of the dust bag, but also ensure the sealing of the dust bag.
[0063] In some other more specific embodiments, the opening element may also be configured as a sticker or a similar element.
[0064] Of course, in some other embodiments, the other end 32 of the dust bag 3 opposite to the open end 31 may not be provided with an opening element, but may be directly sealed after the clamp 2 is installed.
[0065] The utility model also provides an electric tool in some other embodiments, the dust outlet of which is connected to the dust collecting device as described above. In some more preferred embodiments, the dust collecting port 12 of the frame 1 of the dust collecting device is rotatably connected to the dust outlet of the electric tool. In this way, when the electric tool is placed upside down on the ground or the operating table, the dust bag originally suspended in the height direction of the electric tool can be adjusted by rotating the frame at a certain angle, so as not to interfere with the external environment, such as the ground or the operating table.
[0066] In some more specific embodiments, the power machine tool may be a sander.
[0067] Of course, in other embodiments, the electric tool may also be other electric tools with dust or dirt collection functions.
[0068] It should be noted that the prior art part in the protection scope of the utility model is not limited to the embodiments given in the application documents. All prior art that does not contradict the scheme of the utility model, including but not limited to prior patent documents, prior public publications, prior public uses, etc., can be included in the protection scope of the utility model.
[0069] In addition, the combination of the various technical features in this case is not limited to the combination described in the claims of this case or the combination described in the specific embodiments. All technical features recorded in this case can be freely combined or combined in any way unless there is a contradiction between them.
[0070] It should also be noted that the above-listed embodiments are only specific embodiments of the present invention. Obviously, the present invention is not limited to the above embodiments, and similar changes or modifications made therewith are directly derived or easily associated with the contents disclosed by those skilled in the art from the present invention, and should all fall within the protection scope of the present invention.
Claims
1. A dust collecting device, characterized in that: include: A dust bag (3) having an open end (31); An elongated frame (1) has an arm (11) extending in a length direction, the arm extending from the open end (31) into the dust bag to support the dust bag (3); a dust collection port (12) is provided at the head end of the arm (11), the dust collection port (12) being in communication with the internal space of the dust bag (3); The clamp (2) is sleeved on the periphery of the frame (1) to seal the open end (31) of the dust bag (3) between the clamp (2) and the frame (1); the clamp is located inside the dust bag in the clamped state.
2. The dust collecting device according to claim 1, characterized in that: The tail end of the arm (11) has a first wing portion extending to at least one side in the width direction thereof; and / or the middle portion of the arm (11) has a second wing portion extending to at least one side in the width direction thereof.
3. The dust collecting device according to claim 1, characterized in that: An opening element for opening the dust bag is provided on the other end (32) of the dust bag (3) opposite to the opening end (31).
4. The dust collecting device according to claim 3, characterized in that: The opening element is configured as a zipper.
5. The dust collecting device according to claim 1, characterized in that: The outer wall of the frame (1) is provided with an annular protrusion (13) protruding radially outward, which cooperates with the side wall (23) of the clamp (2) to prevent the clamp from being displaced in the length direction of the frame; and / or the outer wall of the frame (1) is provided with a rib (14) extending along its length direction, and the rib (14) is clamped in the clamp (2) to prevent the clamp from rotating relative to the frame.
6. The dust collecting device according to claim 1, characterized in that: The outer circumferential wall of the clamp (2) is provided with an annular rib (24) protruding radially outward.
7. The dust collecting device according to claim 1, characterized in that: The clamp (2) comprises at least two clamp halves (21), and the two clamp halves (21) are connected by a fastener (22).
8. The dust collecting device according to claim 7, characterized in that: The inner wall contour line of the clamp is circular, and the outer wall contour line of the clamp is elliptical.
9. An electric machine tool, characterized in that: The dust outlet end thereof is connected with a dust collecting device as described in any one of claims 1-8.
10. The electric machine tool according to claim 9, characterized in that: The dust collection port (12) of the arm (11) is rotatably connected to the dust outlet end of the electric tool machine.