CN205765991U - The square shank drill head fast-assembling system of light electric hammer - Google Patents
The square shank drill head fast-assembling system of light electric hammer Download PDFInfo
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- CN205765991U CN205765991U CN201620518959.9U CN201620518959U CN205765991U CN 205765991 U CN205765991 U CN 205765991U CN 201620518959 U CN201620518959 U CN 201620518959U CN 205765991 U CN205765991 U CN 205765991U
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- arbor
- collar
- mounting hole
- drill head
- cone angle
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Abstract
nullThis utility model relates to electric hammer technical field，Particularly relate to the square shank drill head fast-assembling system of light electric hammer，Including side's arbor assembly and square shank drill head，First group of waist type groove and second group of waist type groove it is respectively equipped with on the two relative side of square shank drill head-tail,The side's arbor assembly side of including arbor、First steel ball、Second steel ball、Spring、Support ring、Capel in the collar and the collar,The flat plane in side of side's arbor is provided with the first cone angle mounting hole and the second cone angle mounting hole,First cone angle mounting hole is provided with the first steel ball,Second cone angle mounting hole is provided with the second steel ball,It is arranged with support ring on side's arbor,And support ring snaps on the first cone angle mounting hole and the second flat plane of cone angle mounting hole,In the collar, capel embeds collar inwall,The collar is sheathed on outside support ring,Between the spring side of being located at arbor and support ring，Simple and compact for structure，Overall dimensions is little，One-hand operation when drill bit inserts，Output shaft increases service life significantly，Long-time use does not haves the defects such as drill bit swing is big.
Description
Technical field
This utility model relates to electric hammer technical field, particularly relates to the square shank drill head fast-assembling system of light electric hammer.
Background technology
The square shank drill head-clamp head system overall dimensions on light electric hammer that Present Domestic is sold is big.Operation inconvenience,
Not only need bimanualness during insertion, and great majority use monolateral chuck structure, cause output shaft service life
Short, long-time use swings the defects such as big.
Therefore, it is badly in need of providing the square shank drill head fast-assembling system of light electric hammer, to solve the deficiencies in the prior art.
Utility model content
The purpose of this utility model is to provide the square shank drill head fast-assembling system of light electric hammer, simple and compact for structure,
Overall dimensions is little, one-hand operation when drill bit inserts, and uses double steel ball collet system, and the output shaft life-span is big
Big growth, does not haves drill bit after long-time use yet and swings the defects such as big.
For achieving the above object, this utility model adopts the following technical scheme that:
The square shank drill head fast-assembling system of light electric hammer, including side's arbor assembly and square shank drill head, described square shank drill
First group of waist type groove and second group of waist type groove, described side's arbor group it is respectively equipped with on the two relative side of head-tail
Capel in the part side of including arbor, the first steel ball, the second steel ball, spring, support ring, the collar and the collar, described
The flat plane of side's arbor is provided with the first cone angle mounting hole and the second cone angle mounting hole, described first cone angle kidney-shaped
Hole is provided with the first steel ball, and described second cone angle mounting hole is provided with the second steel ball, sheathed on described side's arbor
There is described support ring, and described support ring snaps in described first cone angle mounting hole and described second cone angle mounting hole
On flat plane, in the described collar, capel embeds described collar inwall, and the described collar is sheathed on outside described support ring,
Between the described spring side of being located at arbor and described support ring.
More preferably, also including that jump ring, described jump ring are located on described side's arbor, described jump ring is limited in described side
In arbor jump-ring slot inner sleeve.
More preferably, the end of described side's arbor is provided with dust cap, described dust cap and described collar clamping.
More preferably, capel and described collar inwall clamping in the described collar.
Compared with prior art, the square shank drill head fast-assembling system of light electric hammer of the present utility model, simple in construction
Compact, overall dimensions is little, one-hand operation when drill bit inserts, and uses double steel ball collet system, output shaft
Service life increases significantly, does not also have drill bit and swing the defects such as big, double steel ball chucks after long-time use
System structure, uniform force during work, resist vibratory impulse strong, thus the bore wear of the side's of alleviating arbor,
The long-time use drill bit amplitude of oscillation is little, and service life is long.
Accompanying drawing explanation
Fig. 1 is the structural representation of the square shank drill head fast-assembling system of light electric hammer of the present utility model.
Fig. 2 is the sectional view of the square shank drill head fast-assembling system of light electric hammer of the present utility model.
Detailed description of the invention
Being further described this utility model below in conjunction with embodiment, this is preferable reality of the present utility model
Execute example.
Embodiment 1
As shown in Figure 1-2, the square shank drill head fast-assembling system of light electric hammer, including side's arbor assembly 1 and side's handle
Drill bit 2, the two relative side of described square shank drill head 2 afterbody is respectively equipped with first group of waist type groove 21 and second
Group waist type groove 22, described side's arbor assembly 1 side of including arbor the 11, first steel ball the 12, second steel ball 13, bullet
Capel 17 in spring 14, support ring 15, the collar 16 and the collar, the flat plane in side of described side's arbor 11 is provided with
First cone angle mounting hole 111 and the second cone angle mounting hole 112, described first cone angle mounting hole 111 is provided with
One steel ball 12, described second cone angle mounting hole 112 is provided with the second steel ball 13, sheathed on described side's arbor 11
There is described support ring 15, and described support ring 15 snaps in described first cone angle mounting hole 111 and described second cone
On the flat plane of angle mounting hole 112, in the described collar, capel 17 embeds the described collar 16 inwall, the described collar 16
It is arranged with outside described support ring 15, described spring 14 side of being located at arbor 11 and described support ring 15 spring
Between 14.
More preferably, also include that jump ring 18, described jump ring 18 are located on described side's arbor 11, described jump ring 18
It is limited in described side's arbor 11 jump-ring slot.
More preferably, the end of described side's arbor 11 is provided with dust cap 3, described dust cap 3 and the described collar 16
Clamping.Dust cap 3 prevents ingress of dust, has stopped outside broken ring condition.
More preferably, capel 17 and the described collar 16 inwall clamping in the described collar.
Square shank drill head one hand inserts operation principle: when in single-hand held square shank drill head 2 afterbody insertion side arbor 11
Time, double steel that square shank drill head 2 afterbody pushes the work forward in cone angle mounting hole 111 and 112 on the double flat plane of axle
Ball 12 and 13, backs down support ring 15 displacement backwards, compression spring 14 simultaneously, and steel ball 12 and 13 is displaced to
In support ring 15 and the collar between capel 17, allow square shank drill head 2 can continue to inward and insert, until steel ball
12 and 13 when returning in first group of waist type groove 21 or second group of waist type groove 22 under the elastic force of spring 14,
Pinning square shank drill head 2, one hand can not directly be extracted, then achieve drill bit fast-mounting self-locking function.
Square shank drill head takes out operation principle: when the collar 16 on a hands pressing side arbor 11 and support ring 15,
Spring 14 is compressed, and the collar 16 continues towards side's arbor 11 shaft shoulder displacement, and the most other hands is pulled outwardly
Pulling out square shank drill head 2, steel ball 12 and 13 removes first group of waist type groove 21 of drill bit or second group of waist type groove 22,
Continue to be displaced to face, capel 17 front bevel angle in the collar, concede space, thus extract square shank drill head 2 smoothly.
Compared with prior art, the square shank drill head fast-assembling system of light electric hammer of the present utility model, simple in construction
Compact, overall dimensions is little, one-hand operation when drill bit inserts, and uses double steel ball collet system, output shaft
Life-span increases significantly, does not also have drill bit and swing the defects such as big, double steel ball collet system after long-time use
Structure, uniform force during work, resist vibratory impulse strong, thus the bore wear of the side's of alleviating arbor, long
Time uses the drill bit amplitude of oscillation little, and service life is long.
Last it should be noted that, above example is only in order to illustrate the technical solution of the utility model, rather than
Restriction to this utility model protection domain, although having made in detail this utility model with reference to preferred embodiment
Illustrate, it will be understood by those within the art that, the technical solution of the utility model can be repaiied
Change or equivalent, without deviating from the spirit and scope of technical solutions of the utility model.
Claims (4)
1. the square shank drill head fast-assembling system of light electric hammer, including side's arbor assembly and square shank drill head, it is characterised in that:
First group of waist type groove and second group of waist type groove it is respectively equipped with on two pairs of sides of described square shank drill head-tail, described
In the side's arbor assembly side of including arbor, the first steel ball, the second steel ball, spring, support ring, the collar and the collar
Capel, the flat plane of described side's arbor is provided with the first cone angle mounting hole and the second cone angle mounting hole, and described first
Cone angle mounting hole is provided with the first steel ball, and described second cone angle mounting hole is provided with the second steel ball, described side's handle
It is set with described support ring on axle, and described support ring snaps in described first cone angle mounting hole and described second cone
On the flat plane of angle mounting hole, in the described collar, capel embeds the embedded ring wall of the described collar, and the described collar is sheathed on institute
State outside support ring, between the described spring side of being located at arbor and described support ring.
The square shank drill head fast-assembling system of light electric hammer the most according to claim 1, it is characterised in that: also include
Jump ring, described jump ring is located on described side's arbor, and described jump ring is limited in described side's arbor jump-ring slot.
The square shank drill head fast-assembling system of light electric hammer the most according to claim 1, it is characterised in that: described side
The end of arbor is provided with dust cap, described dust cap and described collar clamping.
The square shank drill head fast-assembling system of light electric hammer the most according to claim 1, it is characterised in that: described set
Capel and described collar inwall clamping in ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620518959.9U CN205765991U (en) | 2016-05-31 | 2016-05-31 | The square shank drill head fast-assembling system of light electric hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620518959.9U CN205765991U (en) | 2016-05-31 | 2016-05-31 | The square shank drill head fast-assembling system of light electric hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205765991U true CN205765991U (en) | 2016-12-07 |
Family
ID=58135679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620518959.9U Active CN205765991U (en) | 2016-05-31 | 2016-05-31 | The square shank drill head fast-assembling system of light electric hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205765991U (en) |
-
2016
- 2016-05-31 CN CN201620518959.9U patent/CN205765991U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |