CN204321803U - Sander - Google Patents
Sander Download PDFInfo
- Publication number
- CN204321803U CN204321803U CN201420820338.7U CN201420820338U CN204321803U CN 204321803 U CN204321803 U CN 204321803U CN 201420820338 U CN201420820338 U CN 201420820338U CN 204321803 U CN204321803 U CN 204321803U
- Authority
- CN
- China
- Prior art keywords
- brush
- casing
- sand paper
- fixed
- middle cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of sander, comprise cabinet cover (1), casing (6), switch (2), stator (4), rotor (5), brush assembly, middle cover (7), vibration rack (8), plastic bottom board (13), foam substrate (14), middle cover (7) is fixedly connected with casing (6) lower end, described vibration rack (8) is made up of flexible material, its top is fixed on the left and right sides of middle cover (7) and casing (6), plastic bottom board (13) and foam substrate (14) are fixed on the bottom of vibration rack (8), rotor (5) output shaft stretches out middle cover (7) and is fixed with eccentric wheel (15), eccentric shaft on eccentric wheel (15) is connected with plastic bottom board (13) by bearing, the left and right sides of described plastic bottom board (13) is provided with sand paper folder (9), and sand paper folder (9) is provided with spanner (12), and the clamping part of sand paper folder (9) is provided with shark tooth (20).After adopting this structure, there is simple and reasonable, the advantage such as vibration rack and Service Life of Carbon Brush length, disassembling, assembling and replacing convenience, sand paper fixation, good sealing effect.
Description
Technical field
The utility model relates to a kind of hand held electric tool, particularly a kind of Flat plate type sander being used for surface finish and polishing.
Background technology
Sander is a kind of special hand held electric tool for surface of the work grinding and buffing, it comprises cabinet cover, casing, switch, stator, rotor, brush assembly, middle cover, vibration rack, plastic bottom board, foam substrate, middle cover is fixedly connected with casing lower end, stator is fixed on casing, rotor is arranged on the casing of middle cover and upper end by bearing rotationally, sand paper is fixed on the sand paper folder of plastic bottom board, during work, rotor banding movable eccentric wheel High Rotation Speed, eccentric wheel drives plastic bottom board, foam substrate and sand paper swing fast, thus realize the function of grinding and buffing.But in use there is following problem in existing sander: one is because plastic bottom board is connected with casing by corner vibration rack, vibration rack material is really up to the mark, plastic bottom board is hindered to swing fast, pin down fuselage simultaneously, cause the vibrations of whole loom, causing that operator's both hands are numb cannot holding operation.Two be existing brush by spring fitting on brush carrier, brush and spring are on the same line, due to the reason of structure, the length of brush is subject to the restriction of installation dimension, brush life is very short, and general 60 hours just wearing and tearing can not use, and change brush frequent, sometimes careless dismounting also easily damages other parts, even scraps because dismounting causes loom to burn.Three is that sand paper folder elastic clip plane compresses sand paper, and sand paper in use can produce and loosen wearing and tearing, needs often to change sand paper and sand paper folder.Four is that switch does not seal, and causes loom sealing effectiveness poor, in dust ingress engine.For this reason, many manufacturers and knowledgeable people have carried out R and D, but do not have desirable product to emerge so far.
Summary of the invention
For overcoming the problems referred to above that existing Flat plate type sander exists, the purpose of this utility model is to provide the sander of a kind of simple and reasonable, vibration rack and Service Life of Carbon Brush length, disassembling, assembling and replacing convenience, sand paper fixation, good sealing effect.
The utility model solves the problems of the technologies described above adopted technical scheme, it comprises cabinet cover, casing, switch, stator, rotor, brush assembly, middle cover, vibration rack, plastic bottom board, foam substrate, middle cover is fixedly connected with casing lower end, stator is fixed on casing, rotor is arranged on the casing of middle cover and upper end by bearing rotationally, described vibration rack is made up of flexible material, its top is fixed on the left and right sides of middle cover and casing by fixed mount, plastic bottom board and foam substrate are fixed on the bottom of vibration rack, rotor of output shaft axle is stretched out middle cover and is fixed with eccentric wheel, eccentric shaft on eccentric wheel is connected with plastic bottom board by bearing.
Further scheme of the present utility model, described brush assembly comprises brush disc spring, brush carrier, brush, brush carrier is fixed on casing, brush to be movably arranged on brush carrier and to match with epitrochanterian commutator, brush disc spring is arranged on brush carrier and the inner and fixes, and top, outer end is pressed on brush.
Further scheme of the present utility model, the left and right sides of described plastic bottom board is provided with sand paper folder, and sand paper folder is provided with the spanner making sand paper press from both sides folding, and the clamping part of sand paper folder is provided with shark tooth.
Further scheme of the present utility model, described switch is arranged on casing, and the installing hole of switch is provided with enclosed switch cap.
After adopting said structure, have the following advantages compared with the prior art and effect: an eccentric wheel of driven by motor when being work, eccentric wheel drives plastic bottom board, foam substrate and sand paper to swing fast by eccentric shaft, because vibration rack is made up of flexible material, not only substantially increase the pliability of vibration rack, and greatly reduce and swing resistance, reduce load, thus extend the service life of loom, solve whole loom vibrations simultaneously and cause the numb problem that cannot grip of operator's both hands.Two is the structures owing to improving brush assembly, adds the length of brush, the use of brush is doubled with the life-span above, greatly reduce the number of times of brush changing.Three is that clamping part owing to pressing from both sides at sand paper is provided with shark tooth, and sand paper folder bites sand paper by shark tooth, thus sand paper fixation is not loosened, and solves because sand paper loosens the problem that wearing and tearing need often to change sand paper and sand paper folder.Four is because the installing hole of switch is provided with enclosed switch cap, substantially increases the sealing effectiveness of loom.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is eccentric structure schematic diagram of the present utility model.
Fig. 3 is brush assembly structural representation of the present utility model.
Fig. 4 is the A-A generalized section of the utility model Fig. 1.
Fig. 5 is broken section perspective view of the present utility model.
Wherein 1 cabinet cover, 2 switches, 3 enclosed switch caps, 4 stators, 5 rotors, 6 casings, 7 middle cover, 8 vibration racks, 9 sand paper folders, 10 screws, 11 fixed mounts, 12 spanners, 13 plastic bottom boards, 14 foam substrate, 15 eccentric wheels, 16 commutators, 17 brush disc springs, 18 brush carriers, 19 brushes, 20 shark teeth.
Detailed description of the invention
Shown in Fig. 1 to Fig. 5, for the specific embodiments of a kind of sander of the utility model, it comprises cabinet cover 1, casing 6, switch 2, stator 4, rotor 5, brush assembly, middle cover 7, vibration rack 8, plastic bottom board 13, foam substrate 14, middle cover 7 is fixedly connected with casing 6 lower end, stator 4 is fixed on casing 6, rotor 5 is arranged on the casing 6 of middle cover 7 and upper end by bearing rotationally, described vibration rack 8 is made up of flexible material, its top is fixed on the left and right sides of middle cover 7 and casing 6 by fixed mount 11, plastic bottom board 13 is fixed on the bottom of vibration rack 8 by screw 10, foam substrate 14 is fixed on bottom plastic bottom board 13, rotor 5 output shaft stretches out middle cover 7 and is fixed with eccentric wheel 15, eccentric shaft on eccentric wheel 15 is connected with plastic bottom board 13 by bearing, during work, rotor 5 output shaft band movable eccentric wheel 15 High Rotation Speed, eccentric shaft on eccentric wheel 15 drives plastic bottom board 13 by bearing, foam substrate 14 and sand paper swing fast, thus realize the function of grinding and buffing.
In order to improve the service life of brush, described brush assembly comprises brush disc spring 17, brush carrier 18, brush 19, brush carrier 18 is fixed on casing 6, brush 19 to be movably arranged on brush carrier 18 and to match with the commutator 16 on rotor 5, brush disc spring 17 is arranged on brush carrier 18 and the inner and fixes, and top, outer end is pressed on brush 19.In order to ensure that sand paper firm grip does not loosen, the left and right sides of described plastic bottom board 13 is provided with sand paper folder 9, and sand paper folder 9 is provided with the spanner 12 that sand paper can be made to press from both sides folding, and the clamping part of sand paper folder 9 is provided with shark tooth 20.In order to improve the dust seal effect of loom, described switch 2 is arranged on casing 6, and the installing hole of switch 2 is provided with enclosed switch cap 3.
The above; just specific embodiment of the utility model, not makes any pro forma restriction to the utility model, is not departing from the technical solution of the utility model basis; done simple modification, equivalent variations or modification, all fall into protection domain of the present utility model.
Claims (4)
1. a sander, comprise cabinet cover (1), casing (6), switch (2), stator (4), rotor (5), brush assembly, middle cover (7), vibration rack (8), plastic bottom board (13), foam substrate (14), middle cover (7) is fixedly connected with casing (6) lower end, stator (4) is fixed on casing (6), rotor (5) is arranged on the casing (6) of middle cover (7) and upper end by bearing rotationally, it is characterized in that: described vibration rack (8) is made up of flexible material, its top is fixed on the left and right sides of middle cover (7) and casing (6) by fixed mount (11), plastic bottom board (13) and foam substrate (14) are fixed on the bottom of vibration rack (8), rotor (5) output shaft stretches out middle cover (7) and is fixed with eccentric wheel (15), eccentric shaft on eccentric wheel (15) is connected with plastic bottom board (13) by bearing.
2. sander according to claim 1, it is characterized in that: described brush assembly comprises brush disc spring (17), brush carrier (18), brush (19), brush carrier (18) is fixed on casing (6), brush (19) is movably arranged on brush carrier (18) and goes up and match with the commutator (16) on rotor (5), it is upper and inner fixing that brush disc spring (17) is arranged on brush carrier (18), and top, outer end is pressed on brush (19).
3. sander according to claim 1 and 2, it is characterized in that: the left and right sides of described plastic bottom board (13) is provided with sand paper folder (9), sand paper folder (9) is provided with the spanner (12) that sand paper can be made to press from both sides folding, and the clamping part of sand paper folder (9) is provided with shark tooth (20).
4. sander according to claim 3, is characterized in that: described switch (2) is arranged on casing (6), and the installing hole of switch (2) is provided with enclosed switch cap (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420820338.7U CN204321803U (en) | 2014-12-23 | 2014-12-23 | Sander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420820338.7U CN204321803U (en) | 2014-12-23 | 2014-12-23 | Sander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204321803U true CN204321803U (en) | 2015-05-13 |
Family
ID=53158206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420820338.7U Expired - Fee Related CN204321803U (en) | 2014-12-23 | 2014-12-23 | Sander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204321803U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105935924A (en) * | 2016-06-29 | 2016-09-14 | 苏州博来喜电器有限公司 | Bottom plate assembly for handheld sander |
| CN105983893A (en) * | 2016-06-29 | 2016-10-05 | 苏州博来喜电器有限公司 | Handheld sander |
| CN108015670A (en) * | 2016-10-28 | 2018-05-11 | 苏州宝时得电动工具有限公司 | Sanding machine bottom board, sander and sander bottom plate making process |
-
2014
- 2014-12-23 CN CN201420820338.7U patent/CN204321803U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105935924A (en) * | 2016-06-29 | 2016-09-14 | 苏州博来喜电器有限公司 | Bottom plate assembly for handheld sander |
| CN105983893A (en) * | 2016-06-29 | 2016-10-05 | 苏州博来喜电器有限公司 | Handheld sander |
| CN108015670A (en) * | 2016-10-28 | 2018-05-11 | 苏州宝时得电动工具有限公司 | Sanding machine bottom board, sander and sander bottom plate making process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20211223 |