CN219403472U - Dust collecting device - Google Patents
Dust collecting device Download PDFInfo
- Publication number
- CN219403472U CN219403472U CN202320306923.4U CN202320306923U CN219403472U CN 219403472 U CN219403472 U CN 219403472U CN 202320306923 U CN202320306923 U CN 202320306923U CN 219403472 U CN219403472 U CN 219403472U
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- China
- Prior art keywords
- collecting device
- cap
- dust collecting
- dust collection
- collection head
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Percussive Tools And Related Accessories (AREA)
- Auxiliary Devices For Machine Tools (AREA)
Abstract
The dust collecting device comprises a main body, a dust collection head and a round cap, wherein the main body is arranged on the electric tool, the dust collection head is arranged on the main body, the round cap is connected with the dust collection head, the dust collection head is positioned at the front end of the electric tool and provided with a suction inlet through which the drill passes, and the cap is positioned at the rear end of the suction inlet and provided with a through hole through which the drill passes; the dust collecting device is provided with a flexible connection between the cap and the cleaning head in a radial direction, so that the cap has a degree of freedom to move in a radial direction relative to the cleaning head. The utility model can avoid ash leakage of the dust collection head caused by shaking of the drill bit.
Description
[ technical field ]
The present utility model relates to the field of power tools, and more particularly, to a dust collecting apparatus for use with a power tool.
[ background Art ]
Dust collection devices are commonly used with hand-held drilling tools (e.g., electric hammers) to collect dust and other debris during drilling operations, preventing the dust and other debris from accumulating at the workplace.
The prior dust collecting device, such as the one disclosed in the chinese patent application No. 115431226a, is an impact tool and a dust collecting system, wherein a suction port of the dust collecting system is used for a drill to pass through and collect dust and other debris near the drill, the position of the suction port on the dust collecting system is fixed, and a sealing surface for preventing ash leakage is formed between the edge of the suction port and the drill. Due to manufacturing and assembling errors, part abrasion in the using process and other reasons, when drilling, the drill bit can shake due to eccentric rotation, so that a gap is formed between the suction inlet and the drill bit to damage the sealing surface, the original sealing surface cannot play a role in sealing, and ash leakage still occurs at the suction inlet.
In view of the above, it is desirable to provide an improved dust collection device that overcomes the shortcomings of the prior art.
[ summary of the utility model ]
In view of the shortcomings of the prior art, an object of the present utility model is to provide a dust collecting device capable of avoiding ash leakage caused by bit shaking.
The technical scheme adopted for solving the problems in the prior art is as follows: the dust collecting device comprises a main body, a dust collection head and a round cap, wherein the main body is arranged on the electric tool, the dust collection head is arranged on the main body, the round cap is connected with the dust collection head, the dust collection head is positioned at the front end of the electric tool and provided with a suction inlet through which the drill passes, and the cap is positioned at the rear end of the suction inlet and provided with a through hole through which the drill passes; the dust collecting device is provided with a flexible connection between the cap and the cleaning head in a radial direction, so that the cap has a degree of freedom to move in a radial direction relative to the cleaning head.
The further improvement scheme is as follows: the radial width of the cap is greater than the radial width of the flexible connection section.
The further improvement scheme is as follows: the dust collecting device is provided with a first mounting part positioned between the flexible connecting part and the dust collection head, and the flexible connecting part is detachably mounted on the dust collection head through the first mounting part.
The further improvement scheme is as follows: the first installation part comprises a first flange arranged on the dust collection head and a first groove arranged on the flexible connection part, and the first flange is clamped with the first groove in a matching way.
The further improvement scheme is as follows: the cap is provided with a plurality of cutouts communicating radially from the through hole.
The further improvement scheme is as follows: the thickness of the cap increases gradually radially outwards.
The further improvement scheme is as follows: the dust collecting device is provided with a neck connected to the front end of the dust collection head, the neck is provided with an opening positioned at the front end, and the suction inlet is communicated with the opening.
The further improvement scheme is as follows: the diameter of the opening of the neck portion gradually decreases in a back-to-front direction.
The further improvement scheme is as follows: the dust collecting device is provided with a second mounting part positioned between the neck part and the dust collection head, and the neck part is detachably mounted on the dust collection head through the second mounting part.
The further improvement scheme is as follows: the second installation part comprises a second flange arranged on the dust collection head and a second groove arranged on the neck, and the second flange is clamped with the second groove in a matching way.
Compared with the prior art, the utility model has the following beneficial effects: according to the dust collecting device provided by the utility model, the flexible connecting part is arranged at the radial edge of the dust collection head cap, so that the cap can move radially along with the shake of the drill bit, and the sealing surface formed by the cap and the drill bit is effectively prevented from being damaged, thereby avoiding dust leakage of the dust collection head.
[ description of the drawings ]
The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings:
fig. 1 is a structural sectional view of a dust collecting device of an embodiment of the present utility model.
Fig. 2 is a schematic view of a structure in which the dust collecting device shown in fig. 1 is mounted to an electric hammer.
Figure 3 is a front view of the cleaning head of the dust collecting device shown in figure 1.
Figure 4 is a schematic cross-sectional view of the cleaning head of figure 3.
Figure 5 is a schematic view of the cap of the cleaning head of figure 3 following the shaking of the bit.
Meaning of reference numerals in the drawings:
100. a dust collecting device; 110. a main body; 111. a housing; 112. a power assembly; 113. a suction pipe; 114. a connecting pipe; 115. a dust collection cavity; 116. a bellows; 117. a motor; 118. a fan; 119. a filter assembly; 120. a dust collection head; 121. a suction inlet; 122. a cap; 123. a through hole; 124. a notch; 125. a flexible connection portion; 126. a first flange; 127. a first groove; 128. an annular groove; 130. a neck; 131. a second flange; 132. a second groove; 200. an electric hammer; 210. a drill bit.
Detailed description of the preferred embodiments
The terminology used in the present utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. Words such as "front", "rear", etc., indicating an orientation or positional relationship are based on the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of description, and do not indicate or imply that the devices/elements referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus are not to be construed as limiting the utility model. (following proper adjustment)
Referring to fig. 1, in the embodiment of the utility model, a dust collecting device 100 includes a main body 110 and a dust collecting head 120, wherein the main body 110 includes a housing 111, a power assembly 112 disposed in the housing 111, and a suction pipe 113 disposed at a front end of the housing 111.
Wherein, the front end of the suction pipe 113 protrudes from the housing 111, the rear end protrudes into the housing 111, a space allowing the suction pipe 113 to move forward and backward with respect to the housing 111 is formed in the housing 111, a connection pipe 114 perpendicular to the suction pipe 113 is provided at the front end of the suction pipe 113, one end of the connection pipe 114 is fixed to the front end of the suction pipe 113, a suction head 120 is provided at the other end, and a suction inlet 121 is formed in the suction head 120. Referring to fig. 2, when the dust collecting device 100 is mounted to the electric hammer 200, the drill bit 210 of the electric hammer 200 passes through the suction inlet 121, when the drill bit 210 drills the concrete, floor slab, brick wall, stone and other objects, the dust suction head 120 is attached to the surface of the object, negative pressure is formed between the dust suction head 120 and the object to suck dust and other debris generated at the drill bit 210 into the suction inlet 121, the connecting pipe 114 and the suction pipe 113 are sequentially communicated to form a passage for guiding the dust and other debris into the dust collecting cavity 115, a telescopic bellows 116 is arranged in the suction pipe 113, when the suction pipe 113 moves relative to the casing 111, the bellows 116 stretches along with the movement of the suction pipe 113, one end of the bellows 116 is communicated into the dust collecting cavity 115, the other end is communicated into the connecting pipe 114, and the dust and other debris sequentially pass through the suction inlet 121, the connecting pipe 114 and the bellows 116 to enter the dust collecting cavity 115.
The power assembly 112 includes a motor 117 disposed near the dust collection chamber 115 and a fan 118 disposed on an output shaft of the motor 117, and when the motor 117 drives the fan 118 to rotate, the fan 118 discharges the gas in the dust collection chamber 115 through the filter assembly 119 to form a negative pressure in the dust collection chamber 115, thereby forming a negative pressure between the dust suction head 120 and the operation object to suck dust and other debris generated at the drill 210 into the suction port 121.
Referring to fig. 3 and 4, a cap 122 is disposed on the suction head 120 at the rear end of the suction inlet 121, a through hole 123 is disposed on the cap 122 for the drill 210 to pass through, a plurality of slits 124 radially communicating with the through hole 123 are disposed on the cap 122, and in other embodiments, the plurality of slits 124 may be petal-shaped or cyclone-shaped.
When the drill bit 210 passes through the through hole 123, the drill bit 210 forms a sealing surface with the edge of the through hole 123, and the thickness of the cap 122 is gradually increased in a radially outward direction, in this way, the strength of the cap 122 is higher, and the cap is more durable. The flexible connection portion 125 is disposed between the cap 122 and the dust collection head 120, so that the cap 122 has a degree of freedom of moving along a radial direction relative to the dust collection head 120, and when the drill bit 210 shakes due to eccentric rotation caused by manufacturing, assembly errors, part wear in a use process and the like, the cap 122 can move along the radial direction along with the shake of the drill bit 210, so that a sealing surface formed by the cap 122 and the drill bit 210 is prevented from being damaged, and ash leakage of the dust collection head 120 is avoided.
In the present embodiment, the cap 122 is disposed in a vertical direction, and the drill 210 is perpendicular to the cap 122 and passes through the through hole 123 on the cap 122. In other embodiments, the cap 122 may also be disposed obliquely, for example, with the cap 122 disposed on the cleaning head 120 in a forward-inclined manner.
In this embodiment, the radial width of the cap 122 is greater than the radial width of the flexible connection 125, e.g., the ratio of the radial width of the cap 122 to the radial width of the flexible connection 125 is 3:1 to 5:1, not only the original cross-sectional dimensions of the cleaning head 120 can be substantially maintained, but also the cap 122 can be ensured to be substantially at the center of the cleaning head 120 when the drill bit 210 is not vibrated, because when the radial width of the flexible connection part 125 is larger, it is easier to elastically deform, for example, the cap 122 is easier to deflect downwards due to gravity, so that the upper edge of the through hole 123 of the cap 122 is in continuous contact with the drill bit 210 and is easier to wear; and in order for the flexible connection part 125 to have good elasticity, the thickness of the flexible connection part 125 is made smaller than that of the cap 122.
In this embodiment, a first mounting portion is disposed between the flexible connection portion 125 and the dust collection head 120, and the flexible connection portion 125 is detachably mounted on the dust collection head 120 through the first mounting portion, so as to realize the detachment of the cap 122. The first mounting portion includes a first flange 126 disposed on the dust collection head 120 and a first groove 127 disposed on the flexible connection portion 125, and when the flexible connection portion 125 is mounted on the dust collection head 120, the first flange 126 is engaged with the first groove 127. In other embodiments, the positions of the first flange 126 and the first groove 127 may be interchanged, for example, the first groove 127 is provided on the cleaning head 120, and the first flange 126 is provided on the flexible connection part 125.
Since the cap 122 is a wearing part, the dust collecting performance of the dust collecting device 100 is lowered when the cap 122 is worn, and thus, the cap 122 can be replaced after the cap 122 is worn by providing the detachable structure, thereby ensuring the dust collecting performance of the dust collecting device 100.
In the present embodiment, the cap 122, the flexible connection part 125 and the first groove 127 are an integral structure made of rubber, and may be manufactured using a molding process, for example. For the case that the original cross-sectional size of the dust collection head 120 can be basically maintained, the flexible connection part 125 can be formed by forming the annular groove 128 on the edge of the cap 122 of the existing dust collection head 120 through a molding process, and the radial width of a part of the cap 122 is sacrificed to form the flexible connection part 125, so that the original cross-sectional size of the dust collection head 120 is basically not changed, wherein the opening direction of the annular groove 128 faces to the rear.
In the present embodiment, the neck 130 is provided at the front end of the suction port 121 on the suction head 120, the suction head 120 is attached to the surface of the operation object through the neck 130, and negative pressure is formed between the suction head 120 and the operation object to suck dust and other debris generated at the drill 210 into the suction port 121. Wherein the diameter of the neck 130 gradually decreases from the back to the front, and when the neck 130 is attached to the surface of the operation object, the front end of the neck 130 is not radially expanded by the force, so that the front end of the neck 130 always adheres to the surface of the operation object.
In this embodiment, a second mounting portion is disposed between the neck 130 and the cleaning head 120, and the neck 130 is detachably mounted on the cleaning head 120 through the second mounting portion, so as to realize the detachment of the neck 130. The second mounting portion includes a second flange 131 disposed on the dust collection head 120 and a second groove 132 disposed on the neck 130, and when the neck 130 is mounted on the dust collection head 120, the second flange 131 is engaged with the second groove 132. In other embodiments, the positions of the second flange 131 and the second groove 132 may be interchanged, for example, the second groove 132 is provided on the cleaning head 120, and the second flange 131 is provided on the flexible connection part 125.
Since the neck 130 is a wearing part, the dust collecting performance of the dust collecting device 100 is lowered after the neck 130 is worn, and thus, the neck 130 can be replaced after the neck 130 is worn by providing the detachable structure, thereby ensuring the dust collecting performance of the dust collecting device 100.
In this embodiment, the neck 130 and the second groove 132 are an integral structure made of rubber, and may be manufactured using a molding process, for example.
Referring to fig. 5, when the drill bit 210 passes through the through hole 123 on the cap 122 to drill, if the drill bit 210 rotates eccentrically to generate shaking, the cap 122 can move radially along with the shaking of the drill bit 210 due to the flexible connection portion 125 provided at the outer edge of the cap 122, so that the edge of the through hole 123 and the drill bit 210 are always kept in a sealed state, the sealing surface is prevented from being damaged, and ash leakage of the dust suction head 120 is effectively prevented.
The present utility model is not limited to the above-described embodiments. Those skilled in the art will readily appreciate that many alternative embodiments of the dust collecting device of the present utility model are possible without departing from the spirit and scope of the present utility model. The protection scope of the present utility model is subject to the claims.
Claims (10)
1. The dust collecting device comprises a main body, a dust collection head and a round cap, wherein the main body is arranged on the electric tool, the dust collection head is arranged on the main body, the round cap is connected with the dust collection head, the dust collection head is positioned at the front end of the electric tool and provided with a suction inlet through which the drill passes, and the cap is positioned at the rear end of the suction inlet and provided with a through hole through which the drill passes; the method is characterized in that: the dust collecting device is provided with a flexible connection between the cap and the cleaning head in a radial direction, so that the cap has a degree of freedom to move in a radial direction relative to the cleaning head.
2. A dust collecting device as claimed in claim 1, characterized in that: the radial width of the cap is greater than the radial width of the flexible connection section.
3. A dust collecting device as claimed in claim 1, characterized in that: the dust collecting device is provided with a first mounting part positioned between the flexible connecting part and the dust collection head, and the flexible connecting part is detachably mounted on the dust collection head through the first mounting part.
4. A dust collecting device as claimed in claim 3, characterized in that: the first installation part comprises a first flange arranged on the dust collection head and a first groove arranged on the flexible connection part, and the first flange is clamped with the first groove in a matching way.
5. A dust collecting device as claimed in claim 1, characterized in that: the cap is provided with a plurality of cutouts communicating radially from the through hole.
6. A dust collecting device as claimed in claim 1, characterized in that: the thickness of the cap increases gradually radially outwards.
7. A dust collecting device as claimed in claim 1, characterized in that: the dust collecting device is provided with a neck connected to the front end of the dust collection head, the neck is provided with an opening positioned at the front end, and the suction inlet is communicated with the opening.
8. The dust collecting device of claim 7, wherein: the diameter of the opening of the neck portion gradually decreases in a back-to-front direction.
9. The dust collecting device of claim 7, wherein: the dust collecting device is provided with a second mounting part positioned between the neck part and the dust collection head, and the neck part is detachably mounted on the dust collection head through the second mounting part.
10. The dust collecting device of claim 9, wherein: the second installation part comprises a second flange arranged on the dust collection head and a second groove arranged on the neck, and the second flange is clamped with the second groove in a matching way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320306923.4U CN219403472U (en) | 2023-02-24 | 2023-02-24 | Dust collecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320306923.4U CN219403472U (en) | 2023-02-24 | 2023-02-24 | Dust collecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219403472U true CN219403472U (en) | 2023-07-25 |
Family
ID=87209305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320306923.4U Active CN219403472U (en) | 2023-02-24 | 2023-02-24 | Dust collecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219403472U (en) |
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2023
- 2023-02-24 CN CN202320306923.4U patent/CN219403472U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |