CN2806047Y - Transmission shaft clamping unit with elastic tightening loop for hand tool or power tool - Google Patents
Transmission shaft clamping unit with elastic tightening loop for hand tool or power tool Download PDFInfo
- Publication number
- CN2806047Y CN2806047Y CN 200520109885 CN200520109885U CN2806047Y CN 2806047 Y CN2806047 Y CN 2806047Y CN 200520109885 CN200520109885 CN 200520109885 CN 200520109885 U CN200520109885 U CN 200520109885U CN 2806047 Y CN2806047 Y CN 2806047Y
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- China
- Prior art keywords
- tool
- transmission shaft
- elasticity
- slot
- power transmission
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- Expired - Lifetime
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Abstract
The utility model relates to a transmission shaft clamping device with an elastic tightening loop for a hand tool or a power tool. The transmission shaft is provided with a fixed part and a combined part which is connected with the fixed part, wherein the outer end surface of the combined part forms a combined end surface; a hollow inserting slot is concavely arranged at the combined end surface inwards; the combined part is provided with a polygonal driving part at the peripheral wall near to the combined end surface; a positioning slot is concavely arranged at the outer wall of the combined part between the combined end surface and the driving part; one position of the positioning slot is penetrated with a containing hole whose the inner end is communicated with the hollow inserting slot; a positioning body is placed in the containing hole, and elastic tightening loop is circled in the positioning slot. The utility model can reach the dual-purpose effects of combining a sleeve barrel and a tool head by making use of the driving part and the hollow inserting slot, and the positioning body is matched with the elasticity function of the elastic tightening loop; thereby, when the tool head is penetrated in the hollow inserting slot, the positioning body can be elastically tightened to clamp the tool head; thus, better positioning effect is realized.
Description
Technical field
The utility model relates to a kind of transmission device, relates in particular to a kind of power transmission shaft holder with tool elasticity bunching ring that is used for hand-held tool or power tool of double-purpose function, simple in structure and tool blocking tool configuration.
Background technology
Existing hand-held tool or power tool transmission shaft structure, see also No. 341898 " improvement of power tool transmission shaft structure " novel patent case of Taiwan patent announcement of this creator, be to design an extended end at the power transmission shaft binding end, but be formed with the hollow slot of combination tool head in this extended end, power transmission shaft bottom outer wall forms can provide hollow slot to combine fixing function with tool heads with a C shape collar in conjunction with the polygon outer wall of sleeve.
Yet this power transmission shaft still has its shortcoming in the use.One because the design of extended end makes the power transmission shaft entire length increase, and increases the inconvenience on using; They are two years old, desire to combine because extended end is inner with tool heads, the extended end outside cooperates C shape collar setting tool head in addition in addition, make that the wall of this extended end is thin and have boring, meeting breakdown strength like this, when being used in power tool, be easy to generate slight crack, the situation that this extended end is easily ruptured; Its three because the processing and manufacturing of the C shape collar is difficult for, increases and make and spent manpower and materials during assembling, and make the manufacturing of this kind power transmission shaft comparatively complicated.Therefore, still have weak point in existing power transmission shaft and the use, need further to improve.
Because above-mentioned creation has the above shortcoming, this creator improves above-mentioned shortcoming then and creates as shown in Figure 4 the power transmission shaft that is used for hand-held tool or power tool, this power transmission shaft one end is the stiff end 50 that can combine with instrument, the other end is a binding end 51, power transmission shaft is formed with a tetragonal drive division 52 at the outer wall at nearly binding end 51 places, binding end 51 places are concaved with a hexagonal hollow slot 53, hollow slot 53 is provided with a magnetic 54 as fixture, and magnetic 54 is located at the bottom of hollow slot 53, and is arranged with C shape circle 55 between binding end 51 and drive division 52.
When power transmission shaft uses, it is the head end that is incorporated into a power tool 60 with stiff end 50, and shown in 4 figure, be to plug a hexagon tool heads 61, and attracted tool heads 61 and be located in hollow slot 53 with magnetic 54 as fixture with hollow slot 53.In addition, also can use by a sheathed sleeve, reach the dual-purpose effect of transmission tool heads 61 and sleeve with drive division 52.
Yet the mode of its orientation tool head of above-mentioned power transmission shaft is to lean on the attraction of magnetic to be located in hollow slot, and is still certain inadequately with respect to the blocking locate mode with positioning body, therefore still has necessity of further improvement.
And generally be used for the positioner of power transmission shaft, see also Fig. 5, be one to be installed in the power transmission shaft 70 of power tool head end shown in the figure, power transmission shaft 70 is equipped with a slot 71 in its body, one side of this slot 71 is installed with a steel ball shape block holder 72, and when using this power transmission shaft 70, is to insert in the slots 71 of pulling with tool heads 73, and be subjected to block holder 72 blockings with the locating hole 74 that tool heads 73 is provided with and reach the purpose of location
Yet above-mentioned locate mode be with tool heads 73 and block holder 72 with metal mutually the mode of mutual friction and the phase interfix is pulled the location, because metallic spring is not good, therefore this locate mode surface abrasion that often causes block holder 72 and tool heads 73 to be in contact with one another, make power transmission shaft 70 and tool heads 73 both meetings loosening mutually, cause the clip location uncertain, reduce the shortcoming of gearing efficient.
The utility model content
Technical problem underlying to be solved in the utility model is, overcoming existing power tool power transmission shaft exists the location still to reach loosening easily shortcoming inadequately really, and provide a kind of power transmission shaft holder that is used for the tool elasticity bunching ring of hand-held tool or power tool, it has the location really, the advantage that is not easy to become flexible.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of power transmission shaft holder that is used for the tool elasticity bunching ring of hand-held tool or power tool, this power transmission shaft is provided with the joint portion that a fixed part and is linked to this fixed part, this joint portion forms one in conjunction with end face in the outer face, this binding end is towards the interior hollow slot that is arranged with, this joint portion at periphery wall near forming a polygonal drive division in conjunction with the end, it is characterized in that: described joint portion is concaved with a locating slot by outer wall between this is in conjunction with end face and this drive division, this locating slot one place is equipped with an inner containing hole that communicates with this hollow slot, be equipped with certain position body in this containing hole, be equipped with an elasticity bunching ring in the locating slot.
The aforesaid power transmission shaft holder that is used for the tool elasticity bunching ring of hand-held tool or power tool, wherein fixed part is the circular cylinder that the relative both sides of side face are concaved with a grooving respectively.
The aforesaid power transmission shaft holder that is used for the tool elasticity bunching ring of hand-held tool or power tool, wherein the elasticity bunching ring is the RUBBER O shape ring that a ring periphery is provided with the back-shaped ring of a C shape, this elasticity bunching ring and with the inboard against a described positioning body side outwardly, and the outer end of this elasticity bunching ring is a little more than each face of described drive division.
The aforesaid power transmission shaft holder that is used for the tool elasticity bunching ring of hand-held tool or power tool, its hollow core slot is the hexagon slot.
The aforesaid power transmission shaft holder that is used for the tool elasticity bunching ring of hand-held tool or power tool, wherein drive division is shaped as quadrangle.
The aforesaid power transmission shaft holder that is used for the tool elasticity bunching ring of hand-held tool or power tool, its hollow core slot is the hexagon slot.
The aforesaid power transmission shaft holder that is used for the tool elasticity bunching ring of hand-held tool or power tool, wherein drive division is shaped as quadrangle.
The utility model is owing to the outer wall and the center at place, joint portion, and being respectively arranged with can be in conjunction with the drive division and the hollow slot of sleeve and tool heads, and the utility model can reach dual-purpose effect whereby.
And the elasticity bunching ring is to tighten outside power transmission shaft in the mode of elastic ring bundle, the mode of tightening with elasticity cooperates the positioning action of positioning body, when tool heads is arranged in the hollow slot, by positioning body and with the tool heads blocking, can obtain positioning and fixing effect preferably, and owing to directly reach the effect that positioning body resets with set elasticity bunching ring, do not need to establish in addition that metal clips resets positioning body or with the metal blocks blocking, do not have the problem that metal rubs mutually and causes wearing and tearing and become flexible, do not have the situation of material abrasion, can not produce the loosening problem in back of pulling of inserting yet.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is that the utility model is installed in air tool schematic perspective view.
Fig. 2 is the enforcement schematic diagram that the utility model plugs tool heads.
Fig. 3 is the enforcement schematic diagram of the sheathed sleeve of the utility model.
Fig. 4 is the three-dimensional generalized section that the existing drive shaft cartridge that is used for hand-held tool or power tool is located at the power tool head end.
Fig. 5 is the side cutaway view that existing drive shaft cartridge is located at the power tool head end.
The number in the figure explanation:
10 tool bodies, 11 operating members
20 fixed parts, 21 joint portions
22 groovings 23 are in conjunction with end face
24 hollow slot 25 drive divisions
26 locating slots, 27 containing holes
28 positioning bodies, 30 elasticity bunching rings
31O shape is encircled 32 back-shaped rings
40 sleeves, 41 tool heads
411 inlay locating slot 50 stiff ends
51 binding ends, 52 drive divisions
53 hollow slot 54 magnetics
55C shape is enclosed 60 power tools
61 tool heads, 70 power transmission shafts
71 slots, 72 block holders
73 tool heads, 74 locating holes
The specific embodiment
The utility model is a kind of power transmission shaft holder that is used for the tool elasticity bunching ring of hand-held tool or power tool, see also Fig. 1 to shown in Figure 3, in preferred embodiment of the present utility model, be to cooperate a pneumatic tool to use power transmission shaft, this pneumatic tool is provided with a tool body 10, the head of this tool body 10 is stretched and is provided with an operating member 11, and the free end of this operating member 11 is in conjunction with being provided with the utility model.
The utility model power transmission shaft is shaft-like, and two ends are divided into diameter bigger fixed part 20 and the less joint portion 21 of diameter, wherein fixed part 20 is circular cylinders that the relative both sides of side face are concaved with a grooving 22 respectively, and two groovings 22 are symmetrical, the utility model is incorporated into fixed part 20 in the operating member 11 of tool body 10 and rotated by air tool driving
In conjunction with being concaved with the locating slot 26 that a ring section becomes ㄩ shape by outer wall between end face 23 and the drive division 25, locating slot 26 groove bodies one place is equipped with an inner containing hole 27 that communicates with hollow slot 24, is equipped with certain body 28 in containing hole 27 at it in joint portion 21.This positioning body 28 is steel balls in the present embodiment, the inside part of positioning body 28 is arranged in hollow slot 24, in locating slot 26, be equipped with an elasticity bunching ring 30, this elasticity bunching ring 30 is RUBBER O shape rings 31 that a ring periphery is provided with the back-shaped ring 32 of a C shape, and the outer end of elasticity bunching ring 30 is a little more than each face of drive division 25, elasticity bunching ring 30 and with the inboard at corresponding containing hole 27 places against positioning body 28 side toward the outer side.
In addition, fixed part 20 of the present utility model also can be periphery wall and outwards is formed with two kenels for the fin of positioning and fixing respectively, in the operating member 11 that is positioned tool body 10, the utility model is not limited at this, and hollow slot 24 also can be other polygonal slot, drive division 25 also can be hexagon or the octagonal kenel that is provided with, and the utility model is not limited at this.
Seeing also Fig. 2, when the utility model is used in sheathed sleeve 40, is the drive division 25 that sleeve 40 is sheathed on joint portion 21, and with the inboard of the urgent holding sleeve 40 in the outside of elasticity bunching ring 30, reaches the location whereby and drives the effect of sleeve 40 rotations.
See also Fig. 3, when the utility model applies to plug the occasion of tool heads 41, these tool heads 41 corresponding positioning bodies 28 are provided with a ring at side face and inlay locating slot 411, and tool heads 41 is to insert in the hollow slot 24 with the inner, and tool heads 41 is with the inner and perisporium positioning body 28 to be pushed in the containing hole 27 when inserting.Because elasticity bunching ring 30 has elasticity and pushing and pressing positioning body 28, make positioning body 28 very submissive in the process that is outwards promoted by tool heads 41, allow the tool heads 41 can be smooth and easy in the process that plugs, when inlaying locating slot 411 and align containing hole 27, because the elastic-restoring force of elasticity bunching ring 30, positioning body 28 resetted and fall into and inlay locating slot 411, whereby, reach the effect of blocking orientation tool head 41 with the inside part of positioning body 28.
Claims (7)
1. power transmission shaft holder that is used for the tool elasticity bunching ring of hand-held tool or power tool, this power transmission shaft is provided with the joint portion that a fixed part and is linked to this fixed part, this joint portion forms one in conjunction with end face in the outer face, this binding end is towards the interior hollow slot that is arranged with, this joint portion, is characterized in that near forming a polygonal drive division in conjunction with the end at periphery wall:
Described joint portion is concaved with a locating slot by outer wall between this is in conjunction with end face and this drive division, this locating slot one place is equipped with an inner containing hole that communicates with this hollow slot, is equipped with certain position body in this containing hole, is equipped with an elasticity bunching ring in the locating slot.
2. the power transmission shaft holder that is used for the tool elasticity bunching ring of hand-held tool or power tool according to claim 1 is characterized in that: described fixed part is the circular cylinder that the relative both sides of side face are concaved with a grooving respectively.
3. the power transmission shaft holder that is used for the tool elasticity bunching ring of hand-held tool or power tool according to claim 1 and 2, it is characterized in that: described elasticity bunching ring is the RUBBER O shape ring that a ring periphery is provided with the back-shaped ring of a C shape, this elasticity bunching ring and with the inboard against a described positioning body side outwardly, and the outer end of this elasticity bunching ring is a little more than each face of described drive division.
4. the power transmission shaft holder that is used for the tool elasticity bunching ring of hand-held tool or power tool according to claim 1 and 2, it is characterized in that: described hollow slot is the hexagon slot.
5. the power transmission shaft holder that is used for the tool elasticity bunching ring of hand-held tool or power tool according to claim 1 and 2 is characterized in that: described drive division be shaped as quadrangle.
6. the power transmission shaft holder that is used for the tool elasticity bunching ring of hand-held tool or power tool according to claim 3, it is characterized in that: described hollow slot is the hexagon slot.
7. the power transmission shaft holder that is used for the tool elasticity bunching ring of hand-held tool or power tool according to claim 3 is characterized in that: described drive division be shaped as quadrangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520109885 CN2806047Y (en) | 2005-06-16 | 2005-06-16 | Transmission shaft clamping unit with elastic tightening loop for hand tool or power tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520109885 CN2806047Y (en) | 2005-06-16 | 2005-06-16 | Transmission shaft clamping unit with elastic tightening loop for hand tool or power tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2806047Y true CN2806047Y (en) | 2006-08-16 |
Family
ID=36920350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520109885 Expired - Lifetime CN2806047Y (en) | 2005-06-16 | 2005-06-16 | Transmission shaft clamping unit with elastic tightening loop for hand tool or power tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2806047Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103551885A (en) * | 2013-11-07 | 2014-02-05 | 重庆重汽远东传动轴有限责任公司 | Thread machining positioning device for transmission shaft |
| CN106141704A (en) * | 2015-03-30 | 2016-11-23 | 中国有色（沈阳）冶金机械有限公司 | A kind of heavy face lathe reducing cylinder processing assembled tool |
-
2005
- 2005-06-16 CN CN 200520109885 patent/CN2806047Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103551885A (en) * | 2013-11-07 | 2014-02-05 | 重庆重汽远东传动轴有限责任公司 | Thread machining positioning device for transmission shaft |
| CN106141704A (en) * | 2015-03-30 | 2016-11-23 | 中国有色（沈阳）冶金机械有限公司 | A kind of heavy face lathe reducing cylinder processing assembled tool |
| CN106141704B (en) * | 2015-03-30 | 2019-04-09 | 中国有色（沈阳）冶金机械有限公司 | A kind of heavy type face lathe variable diameter cylinder processing assembled tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150616 Granted publication date: 20060816 |