CN202825772U - Function switching device of hand-held tool - Google Patents
Function switching device of hand-held tool Download PDFInfo
- Publication number
- CN202825772U CN202825772U CN 201220537533 CN201220537533U CN202825772U CN 202825772 U CN202825772 U CN 202825772U CN 201220537533 CN201220537533 CN 201220537533 CN 201220537533 U CN201220537533 U CN 201220537533U CN 202825772 U CN202825772 U CN 202825772U
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- CN
- China
- Prior art keywords
- connecting parts
- rotating shaft
- rotating disk
- function change
- housing
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- 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 - Lifetime
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- Portable Power Tools In General (AREA)
Abstract
The utility model discloses a function switching device of a hand-held tool. The function switching device of the hand-held tool comprises a rotary knob arranged on a shell body of the hand-held tool. The rotary knob comprises a rotary disc and a rotating shaft, one end of the rotating shaft is connected with the rotary disc, and the other end of the rotating shaft rotatably penetrates through a through hole arranged in the shell body. A connection piece is arranged between the rotary knob and the shell body and is sleeved and connected on the periphery side of the rotating shaft in a clearance mode. The connection piece is fixedly connected with the shell body, and a clamping-connecting structure is arranged between the connection piece and the rotary disc. The function switching device of the hand-held tool has the advantages of being simple in structure, convenient to manufacture, assemble, disassemble and refuel, low in cost, easy and fast in function switching, reliable in oil seal, and capable of prolonging service life.
Description
Technical field
The utility model relates to a kind of function change-over device, and more particularly, the utility model relates to a kind of device for changing mutually between the various functions of handheld tool.
Background technology
In order to save, to make things convenient for, handheld tool often rolls into one various operation functions as much as possible.Such as electric hammer, general electric hammer all has hammer, brills, hammers into shape but also the function of brill not only, switches fast according to the real work needs between each function.The China national Patent Office patent of invention that September 3, disclosed notification number was CN101254592A in 2008; this patent discloses a kind of hand held power machine; this toolroom machine has a housing; first joint unit and a conversion equipment; this conversion equipment has an operating unit; this operating unit has second joint unit corresponding with this first joint unit; wherein; this operating unit can be inserted in this first joint unit by means of this second joint unit in rigging position with need not instrument, and the second joint unit of this first joint unit and this operating unit is arranged for form this operating unit in the state that this operating unit assembles anti-and loses protection.This patent application skids off in order to prevent that operating unit is unexpected, and operating unit stretches into housing parts and is set to " ten " cabinet frame shape, and the through hole on the housing also needs to be arranged to stretch into " ten " cabinet frame shape that housing parts matches with this operating unit simultaneously.Because the axle of " ten " cabinet frame shape and the hole of " ten " cabinet frame shape all can't obtain by the general machining method, can only lean on the method for casting or shaping or punching to realize, by the produced parts of this several method, its manufacturing cost is higher, and form accuracy is not high, and surface quality is more coarse, thereby assembling difficulty comparatively during handheld tool, in like manner, also comparatively difficult when changing consumable accessory, rotating operation unit is extremely required great effort during the function conversion.
The utility model content
The purpose of this utility model is to overcome defects, provides a kind of simple in structure, the function change-over device of the handheld tool of low cost of manufacture, assembling, convenient disassembly.
The utility model solves the in-problem technical scheme of prior art: a kind of function change-over device of handheld tool, comprise the knob that is arranged on the handheld tool housing, knob comprises rotating disk and rotating shaft, one end of rotating shaft is connected with rotating disk, the other end of rotating shaft passes the through hole that is arranged on the housing rotationally, is provided with connecting parts between described knob and the housing, and connecting parts is socketed in the outer circumferential side of rotating shaft with gap, connecting parts is fixedly connected with housing, is provided with interface arrangment between connecting parts and the rotating disk.As preferably, rotating disk and rotating shaft are connected as a single entity, in order to strengthen its mechanical connection intensity; Because the setting of connecting parts, so that rotating shaft, through hole all can be set to circle, convenient general high-precision machining, so that the circular mating surface of rotating shaft, through hole can high accuracy cooperate, ease of assembly, dismounting, function is switched light, quick, also is conducive to the sealing to lubricating oil; Because the setting of connecting parts, it is slightly large that through hole can be done, and is convenient to stretching into of nozzle, so that handheld tool machinery running part is oily very convenient, is conducive to the mechanical driving part prolongation in service life.
Need to arrange the structure that can produce displacement between the fork shift mechanism in rotating shaft and the handheld tool, this structure can be end face upper offset one connecting hole in rotating shaft, and the slidingtype reversed column is set in the fork shift mechanism, and reversed column is plugged in the connecting hole, rotating shaft, the connecting hole of biasing drives reversed column and produces displacement.Preferably, the end face of the other end of described rotating shaft is provided with reversed column, and reversed column is with respect to this end face axial center-biased.Like this reversed column is plugged on slidably the displacement that just can produce the handoff functionality needs in the fork shift mechanism of handheld tool, it is simple in structure, and is easily manufactured, with low cost.
Preferably, described connecting parts is provided with annular projection towards a side outer rim of rotating disk, and projection is provided with a plurality of breach, and described rotating disk is provided with the card that can radially move back and forth along rotating disk towards a side of connecting parts, card and breach are suitable, and card and breach consist of interface arrangment.Rotating disk radially is provided with outer end opening along rotating disk on the side of connecting parts, the chute of inner end sealing, card is arranged in chute, and an end of card is connected by spring with the chute blind end, the outer peripheral face of the outstanding rotating disk of the other end of card, card base is extended towards connecting parts in the middle part of card.The needs setting is switched according to the function of handheld tool in breach quantity on the projection and position.Press like this other end of card with hand, Compress Spring, card base leaves breach and throws off the clamping state, rotating disk can be rotated, when turntable rotation when needing the gap position of function, decontrol hand, spring promotes card and resets, card base enters breach and realizes clamping, switches thereby the function that realizes handheld tool is effective, stable.
Preferably, described rotating shaft outer peripheral face is provided with jump-ring slot in the outside of connecting parts another side, is connected with " C " shape jump ring in the jump-ring slot.Can stop effectively like this that rotating shaft is unexpected to be skidded off from connecting parts.
Preferably, described rotating shaft is provided with respectively hermetically-sealed construction at connecting parts, shell position place.Two groups of hermetically-sealed constructions are separately positioned on connecting parts centre bore, housing through-hole position, so that the oil sealing dual fail-safe.
Preferably, described rotating shaft outer peripheral face is respectively equipped with annular seal groove in the position of connecting parts, housing, is connected with sealing ring in the seal groove, and seal groove and sealing ring consist of hermetically-sealed construction.
Preferably, described housing is provided with counterbore in all sides of through hole, and described connecting parts is arranged in counterbore.Connecting parts sinks in the counterbore, so that connecting parts can not harm operating personnel's operation.
Preferably, described counterbore annular bottom surface is provided with projection, and described connecting parts another side is provided with the groove that matches with projection, is connected by screw between connecting parts and the projection.Arranging of projection, groove can strengthen the mechanical strength that connecting parts is spirally connected and connects.
Preferably, described rotating disk outer peripheral face extends outward back-up ring at the edge of pressing close to rotating shaft, and the outer rim of back-up ring is provided with " U " shape groove, and " U " shape groove and screw match.Back-up ring the aesthetic property that can improve handheld tool is set, being arranged so that of " U " shape groove can realize that screw is connected between connecting parts and the housing.
Preferably, the outer peripheral face annular knurl of described rotating disk.The mill sassafras power of increase hand rotation rotating disk and attractive in appearance.
The beneficial effects of the utility model are: simple in structure, and manufacturing, assembling, dismounting, easy to lubricate, with low cost, function is switched light, quick, and oil sealing is reliable, can increase the service life.
Description of drawings
Fig. 1 is a kind of structural upright decomposing schematic representation of the present utility model.
Among the figure: 1, knob, 11, rotating disk, 12, back-up ring, 121, " U " shape groove, 13, rotating shaft, 131, reversed column, 132, seal groove, 133, jump-ring slot, 14, card, 141, card base, 2, sealing ring, 3, screw, 4, connecting parts, 41, groove, 42, projection, 43, breach, 44, centre bore, 5, jump ring, 6, housing, 61, projection, 62, counterbore, 63, through hole.
The specific embodiment
Below by specific embodiment, and in conjunction with Figure of description the technical solution of the utility model is further described in detail:
Embodiment: a kind of function change-over device of handheld tool as shown in Figure 1, comprise the knob 1 that is arranged on the handheld tool housing 6, knob 1 comprises rotating disk 11 and rotating shaft 13, one end and the rotating disk 11 of rotating shaft 13 are connected as a single entity, the other end of rotating shaft 13 passes the through hole 63 that is arranged on the housing 6 rotationally, be provided with reversed column 131 on the end face of the other end of rotating shaft 13, reversed column 131 is with respect to this end face axial center-biased, reversed column 131 is plugged on the fork shift mechanism (not shown) that is arranged in handheld tool housing 6 slidably, be provided with connecting parts 4 between described knob 1 and the housing 6, connecting parts 4 is socketed in the outer circumferential side of rotating shaft 13 with gap.Connecting parts 4 is provided with annular projection 42 towards a side outer rim of rotating disk 11, projection 42 is provided with four breach 43, rotating disk 11 radially is provided with the chute (not shown) of outer end opening, inner end sealing along rotating disk 11 on the side of connecting parts 4, card 14 is arranged in chute, one end of card 14 is connected by the spring (not shown) with the chute blind end, the outer peripheral face of the outstanding rotating disk 11 of the other end of card 14, card base 141 is extended towards connecting parts 4 in the middle part of card 14, and card base 141 is suitable with breach 43.Rotating shaft 13 outer peripheral faces are provided with jump-ring slot 133 in the outside of connecting parts 4 another sides, are connected with " C " shape jump ring 5 in the jump-ring slot 133.Rotating shaft 13 outer peripheral faces are respectively equipped with annular seal groove 132 in connecting parts 4 centre bores 44, housing 6 through holes 63 positions, are connected with sealing ring 2 in the seal groove 132.Housing 6 is provided with counterbore 62 in through hole 63 all sides, and described connecting parts 4 is arranged in counterbore 62.Counterbore 62 annular bottom surfaces are provided with projection 61, and described connecting parts 4 another sides are provided with and projection 61 grooves that match 41, are fixedly connected with by screw 3 between the connecting parts 4 and protruding 61.Rotating disk 11 outer peripheral faces extend outward back-up ring 12 at the edge of pressing close to rotating shaft 13, and the outer rim of back-up ring 12 is provided with " U " shape groove 121, " U " shape groove 121 matches with screw 3.The outer peripheral face annular knurl of described rotating disk 11.
Above-described embodiment is a kind of preferred version of the present utility model, is not the utility model is done any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technical scheme that claim puts down in writing.
The content that is not described in detail in this specification belongs to the known prior art of those skilled in the art.
Claims (10)
1. the function change-over device of a handheld tool, comprise the knob that is arranged on the handheld tool housing, knob comprises rotating disk and rotating shaft, one end of rotating shaft is connected with rotating disk, the other end of rotating shaft passes the through hole that is arranged on the housing rotationally, it is characterized in that: be provided with connecting parts between described knob and the housing, connecting parts is socketed in the outer circumferential side of rotating shaft with gap, connecting parts is fixedly connected with housing, is provided with interface arrangment between connecting parts and the rotating disk.
2. function change-over device according to claim 1, it is characterized in that: the end face of the other end of described rotating shaft is provided with reversed column, and reversed column is with respect to this end face axial center-biased.
3. function change-over device according to claim 2, it is characterized in that: described connecting parts is provided with annular projection towards a side outer rim of rotating disk, projection is provided with a plurality of breach, described rotating disk is provided with the card that can radially move back and forth along rotating disk towards a side of connecting parts, card and breach are suitable, and card and breach consist of interface arrangment.
4. according to claim 1 and 2 or 3 described function change-over devices, it is characterized in that: described rotating shaft outer peripheral face is provided with jump-ring slot in the outside of connecting parts another side, is connected with " C " shape jump ring in the jump-ring slot.
5. according to claim 1 and 2 or 3 described function change-over devices, it is characterized in that: described rotating shaft is provided with respectively hermetically-sealed construction at connecting parts, shell position place.
6. function change-over device according to claim 5, it is characterized in that: described rotating shaft outer peripheral face is respectively equipped with annular seal groove in the position of connecting parts, housing, is connected with sealing ring in the seal groove, and seal groove and sealing ring consist of hermetically-sealed construction.
7. according to claim 1 and 2 or 3 described function change-over devices, it is characterized in that: described housing through hole week side be provided with counterbore, described connecting parts is arranged in counterbore.
8. function change-over device according to claim 7, it is characterized in that: described counterbore annular bottom surface is provided with projection, and described connecting parts another side is provided with the groove that matches with projection, is connected by screw between connecting parts and the projection.
9. function change-over device according to claim 8, it is characterized in that: described rotating disk outer peripheral face extends outward back-up ring at the edge of pressing close to rotating shaft, and the outer rim of back-up ring is provided with " U " shape groove, and " U " shape groove and screw match.
10. it is characterized in that: the outer peripheral face annular knurl of described rotating disk according to claim 1 and 2 or 3 described function change-over devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220537533 CN202825772U (en) | 2012-10-20 | 2012-10-20 | Function switching device of hand-held tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220537533 CN202825772U (en) | 2012-10-20 | 2012-10-20 | Function switching device of hand-held tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202825772U true CN202825772U (en) | 2013-03-27 |
Family
ID=47937564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220537533 Expired - Lifetime CN202825772U (en) | 2012-10-20 | 2012-10-20 | Function switching device of hand-held tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202825772U (en) |
-
2012
- 2012-10-20 CN CN 201220537533 patent/CN202825772U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |