CN207643059U - A kind of electric hammer drill chuck silk extension bar - Google Patents
A kind of electric hammer drill chuck silk extension bar Download PDFInfo
- Publication number
- CN207643059U CN207643059U CN201721766069.0U CN201721766069U CN207643059U CN 207643059 U CN207643059 U CN 207643059U CN 201721766069 U CN201721766069 U CN 201721766069U CN 207643059 U CN207643059 U CN 207643059U
- Authority
- CN
- China
- Prior art keywords
- extension bar
- silk extension
- electric hammer
- silk
- adjusting nut
- 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
Links
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001588 bifunctional effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
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- Drilling And Boring (AREA)
Abstract
The utility model discloses a kind of electric hammer drill chuck silk extension bars, including silk extension bar ontology and adjusting nut, one end of silk extension bar ontology is equipped with hollow threaded portion, the lateral surface of threaded portion is equipped with external screw thread, medial surface is equipped with internal thread, adjusting nut is connected with external screw thread, the other end indent of silk extension bar ontology, forms concave surface, the side of silk extension bar ontology is equipped at intervals with multiple limiting slots, and limiting slot is connected by the pivoted housing of positioning ball and electric hammer.The silk extension bar of the utility model is positioned and is locked to silk extension bar using adjusting nut, and it is to connect positioning with silk extension bar by face to bore connector with adjusting nut, and adjusting range is big, flexibly and easily, can be used cooperatively with the electric hammer of different model, save cost；The design of concave surface simultaneously can effectively avoid the impact bar of electric hammer from being driven mistiming and touch silk extension bar, effectively ensure the stability of output.
Description
Technical field
The utility model belongs to electric hammer technical field, and in particular to a kind of electric hammer drill chuck silk extension bar.
Background technology
With the rapid development of Building Trade in China, the electric hammer of simple function has been unable to meet the market demand, and people are for electricity
The multifunction of hammer requires higher and higher, and electric hammer also starts development in pluralism therewith, extends single function, difunctional and three
The electric hammer of function.Single function electric hammer was not only impacted but also was rotated；Bifunctional electric hammer was not only impacted but also was rotated, and can also only impact not rotated
（Electric pick function）；Three function electric hammer, which is not only impacted but also is rotated, only impact not to be rotated（Electric pick function）, can also only rotate not
Impact（Electric drill function）, the complication of function is but also each part requirement higher for electric hammer.
Traditional silk extension bar may be only available for three function electric hammer, be fixed at the positioning of silk extension bar on especially domestic electric hammer
, adjusting range is limited, and dumb, and with the diversification of function, quality also becomes very unstable.
Utility model content
It is applied widely the technical problem to be solved by the utility model is to provide a kind of novelty simple in structure, it can realize
Stablize the electric hammer drill chuck silk extension bar of output.
In order to solve the above technical problems, the technical solution adopted in the utility model is：
A kind of electric hammer drill chuck silk extension bar, including silk extension bar ontology and adjusting nut, during one end of silk extension bar ontology is equipped with
Empty threaded portion, the lateral surface of threaded portion is equipped with external screw thread, medial surface is equipped with internal thread, and adjusting nut connects with external screw thread cooperation
It connects, the other end indent of silk extension bar ontology, forms concave surface, the side of silk extension bar ontology is equipped at intervals with multiple limiting slots, limiting slot
It is connected by the pivoted housing of positioning ball and electric hammer.
The diameter of the silk extension bar ontology is between the outer diameter and internal diameter of threaded portion.
The threaded portion and this body by integral forming of silk extension bar.
The utility model has the advantages that：The silk extension bar of the utility model using adjusting nut to silk extension bar carry out positioning and
Locking, it is to connect positioning with silk extension bar by face to bore connector with adjusting nut, and adjusting range is big, flexibly and easily, energy and different model
Electric hammer be used cooperatively, saved cost；The design of concave surface simultaneously can effectively avoid the impact bar of electric hammer from being driven mistiming and touch silk
Extension bar effectively ensures the stability of output.
Description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the usage state diagram of the utility model.
Wherein, 1, silk extension bar ontology, 2, threaded portion, 3, external screw thread, 4, internal thread, 5, limiting slot, 6, concave surface, 7, adjust spiral shell
Mother, 8, pivoted housing, 9, impact bar, 10, positioning ball.
Specific implementation mode：
As depicted in figs. 1 and 2, a kind of electric hammer drill chuck silk extension bar, including silk extension bar ontology 1 and adjusting nut 7, silk extension bar
One end of ontology 1 is equipped with hollow threaded portion 2, and the lateral surface of threaded portion 2 is equipped with external screw thread 3, medial surface is equipped with internal thread 4, adjusts
It saves nut 7 to be connected with external screw thread 3, the other end indent of silk extension bar ontology 1 forms concave surface 6, in silk extension bar and impact
Bar further pulls open both sides' distance on 9 original interval, and impact bar 9 accidentally touches work(caused by silk extension bar when effectively preventing impact transmission
The side of energy unstability, silk extension bar ontology 1 is equipped at intervals with multiple limiting slots 5, and limiting slot 5 passes through positioning ball 10 and electric hammer
Pivoted housing 8 connects.
The silk extension bar of the utility model is positioned and is locked using adjusting nut 7：When positioning ball 10 falls into limit
Slot 5 and after navigating to the gap between pivoted housing 8 and impact bar 9, tightens adjusting nut 7, positioning ball 10, pivoted housing 8 and silk is allowed to connect
Bar body 1 is in close contact, and to lock an extension bar, drill chuck can be to connect to determine with silk extension bar by face with adjusting nut 7 at this time
Position.This allows for electric hammer more flexible mobility in the conversion of function, even if silk extension bar is detached from electric hammer impact transmission
Power will not influence the stability of electric hammer electric drill function, allow electric hammer drill chuck and impact bar 9 when being converted to electric drill function and using
Still can be concentric, and will not shake, it is ensured that the stability of output.
Due to can freely adjust the latched position of silk extension bar by adjusting nut 7, promote the silk extension bar energy of the utility model
With different manufacturers production, different model electric hammer be used cooperatively, only need to adjust 7 position of adjusting nut can secure lock silk connect
Bar realizes the mostly applicable function of an accessory, without being individually equipped with silk extension bar for each electric hammer, has saved production and has used
Cost.Meanwhile the diameter of silk extension bar ontology 1 is between the outer diameter and internal diameter of threaded portion 2, threaded portion 2 and silk extension bar ontology 1 one
It is body formed, it makes and more convenient to use.
Claims (3)
1. a kind of electric hammer drill chuck silk extension bar, it is characterised in that：Including silk extension bar ontology and adjusting nut, the silk extension bar ontology
One end be equipped with hollow threaded portion, the lateral surface of the threaded portion is equipped with external screw thread, medial surface is equipped with internal thread, the adjusting
Nut is connected with external screw thread, the other end indent of the silk extension bar ontology, forms concave surface, the side of the silk extension bar ontology
Multiple limiting slots are equipped at intervals with, the limiting slot is connected by the pivoted housing of positioning ball and electric hammer.
2. electric hammer drill chuck silk extension bar according to claim 1, it is characterised in that：The diameter of the silk extension bar ontology between
Between the outer diameter and internal diameter of threaded portion.
3. electric hammer drill chuck silk extension bar according to claim 1, it is characterised in that：The threaded portion and silk extension bar ontology one
It is body formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721766069.0U CN207643059U (en) | 2017-12-18 | 2017-12-18 | A kind of electric hammer drill chuck silk extension bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721766069.0U CN207643059U (en) | 2017-12-18 | 2017-12-18 | A kind of electric hammer drill chuck silk extension bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207643059U true CN207643059U (en) | 2018-07-24 |
Family
ID=62881458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721766069.0U Expired - Fee Related CN207643059U (en) | 2017-12-18 | 2017-12-18 | A kind of electric hammer drill chuck silk extension bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207643059U (en) |
-
2017
- 2017-12-18 CN CN201721766069.0U patent/CN207643059U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180724 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |