CN203853971U - Connecting rod for electric hammers and electric drills - Google Patents
Connecting rod for electric hammers and electric drills Download PDFInfo
- Publication number
- CN203853971U CN203853971U CN201420246851.XU CN201420246851U CN203853971U CN 203853971 U CN203853971 U CN 203853971U CN 201420246851 U CN201420246851 U CN 201420246851U CN 203853971 U CN203853971 U CN 203853971U
- Authority
- CN
- China
- Prior art keywords
- extension bar
- sleeve
- elastic collet
- collet chuck
- connecting rod
- 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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- Drilling And Boring (AREA)
Abstract
The utility model discloses a connecting rod for electric hammers and electric drills, and relates to the field of hardware tools. The connecting rod comprises a sleeve, an elastic connecting rod body, an elastic collet, a locking nut and a sleeve transfer sleeving component. An end of the elastic connecting rod body is fittingly connected with the elastic collet by the locking nut, one end of the sleeve is connected with a screwdriver bit, and the other end of the sleeve is connected with the elastic connecting rod body by the sleeve transfer sleeving component. The connecting rod has the advantages that the connecting rod is similar to an existing connecting rod for the traditional drill bits in the aspect of service, a drill bit only needs to be inserted into the elastic collet without additional mounting procedures, then the elastic collet is placed in a tapered hole of the elastic connecting rod body and is locked by the locking nut, and accordingly purposes of drilling holes and locking screws by the aid of the various low-cost traditional drill bits can be achieved; the connecting rod is provided with the elastic collet which is of an independent structure, so that the cost can be advantageously reduced when the connecting rod is maintained.
Description
Technical field
The utility model relates to hardware & tools field, the extension bar that particularly a kind of electric hammer and electric drill are used.
Background technology
Relate to all trades and professions for securing member installation exercise at present, common method is that drill bit is first installed on electric tool, on workpiece, bored behind hole with drill bit, then with hand screwdriver by screw tightening.For increasing work efficiency, constructor carries two electric tools often at installation exercise, and one the electric drill for workpiece boring, and another is for the electric screw driver of lock screw, and this kind of method operating cost is high, and carries inconvenience; Also has the constructor of part with after electric drill boring, again drill bit is unloaded and installs the fastened tools of the turn of the screw from the chuck of electric drill, the so not only body burden in the time virtually having increased constructor's operation, and change the outfit frequently and very easily damage the service life of electric tool, operating cost is increased.
In the streets also there are some to have the extension bar of boring and lock screw function concurrently, but this type of instrument all limits to the drill bit that is applied to single type, and this drill bit need have special shank pattern, with respect to traditional drill bit, the cost of this type of drill bit is high, processed complex, so the extension bar being used in conjunction with this drill bit exists certain limitation in use, can not and build the industry universals such as work carpenter, ironworker.
Summary of the invention
(1) technical problem that will solve
The technical problems to be solved in the utility model is, how the drill bit that a kind of low cost, easy care ground can clamping different size is provided, and has again the instrument of lock screw function concurrently, and can be applicable to carpenter, ironworker and build the industries such as work.
(2) technical scheme
In order to address the above problem, the extension bar that the utility model provides a kind of electric hammer and electric drill to use, itself and electric tool are used in conjunction with, and described extension bar comprises: sleeve pipe, elasticity extension bar body, elastic collet chuck and lock nut;
Described sleeve pipe is the pipe of a hollow, and its one end endoporus is inner hexagonal hole, and other end endoporus is the first sleeve joint hole, two ends cylindrical is respectively provided with a groove, in described groove, be provided with the steel ball that is exposed to groove, the external shell fragment of groove, described shell fragment is for pressing steel ball in groove;
Described elasticity extension bar body one end is the connecting portion being connected with elastic collet chuck, and the other end is provided with and connects handle, described in connect and between handle and connecting portion, be provided with the first socket boss, described the first socket boss is provided with the first arc groove;
Described lock nut is used for locking described elasticity extension bar body and elastic collet chuck;
Extension bar also comprises sleeve pipe reducing sleeve parts, and described sleeve pipe reducing sleeve parts are located between described sleeve pipe and described elasticity extension bar body;
Described sleeve pipe is connected with screwdriver bit with one end of inner hexagonal hole, and the handle that connects of described elasticity extension bar body is connected with electric tool.
Wherein, described extension bar comprises: with the elasticity extension bar body in internal taper hole with the elastic collet chuck of external taper, described elastic collet chuck outer wall is provided with short slot, the connecting portion periphery of described elasticity extension bar body and elastic collet chuck is provided with threaded portion, stretch into after the elasticity extension bar body with internal taper hole with the elastic collet chuck of external taper, described lock nut is locked described elasticity extension bar body and elastic collet chuck by described threaded portion.
Wherein, described extension bar also comprises: with the elastic collet chuck of external taper with the lock nut of internal taper, the described elastic collet chuck with external taper is connected to one end of described elasticity extension bar body, by lock described elasticity extension bar body and the elastic collet chuck with external taper with the lock nut of internal taper.
Wherein, described sleeve pipe reducing sleeve parts comprise: reducing sleeve body and clutch unit, described reducing sleeve body one end is provided with the second socket boss, described the second socket boss external surface shape is identical with described the first socket internal surface of hole shape, described the second socket boss is provided with second arc groove corresponding with described sleeve grooves, described reducing sleeve body other end inside is provided with second sleeve joint hole corresponding with the first socket boss, described reducing sleeve body other end outside is provided with joint face, described joint face is provided with through hole, described clutch unit is located at joint face outside, described clutch unit comprises: exterior ring cap, two spring and positioning balls that coefficient is identical, described exterior ring cap inner surface shape is identical with the surface configuration of joint face, and exterior ring cap inner surface is provided with two deep-slotted chip breakers, described exterior ring cap is socketed on joint face outside, two springs are located at respectively exterior ring cap both sides, described positioning ball be located in through hole and with exterior ring cap contacted inner surfaces.
Wherein, the surface configuration of described joint face comprises: circular, equilateral polygon shape.
Wherein, the shape that connects handle described in comprises: circle, triangle, quadrangle and hexagon.
Wherein, described in connect on the outer surface of handle and be provided with uniformly groove, and the quantity of described groove is at least three.
Wherein, the shape of described the first sleeve joint hole and the second sleeve joint hole includes: triangle, quadrangle, hexagon or equilateral polygon shape.
Wherein, the quantity of described short slot is at least two, and all short slots are all evenly distributed on the barrel of elastic collet chuck, and described elastic collet chuck is made up of high elastic modulus alloy steel.
Wherein, the drill bit being connected with described extension bar is carpenter, ironworker or build work cement drill bit.
(3) beneficial effect
This new design is in the use with to use traditional drill bit similar, do not need extra installation procedure, only drill bit need to be inserted in elastic collet chuck, again elastic collet chuck is put in the bellmouth of elasticity extension bar body and locks with lock nut simultaneously, have boring concurrently and have the object of lock screw concurrently by the various conventional drill of lower cost thereby reach, and using the elastic collet chuck of absolute construction to be more conducive to reduce the cost while safeguarding this extension bar.
Brief description of the drawings
Fig. 1 is the overall structure schematic diagram of the utility model extension bar;
Fig. 2 is the schematic diagram of Fig. 1 middle sleeve;
Fig. 3 is the schematic diagram of Fig. 1 Elastic extension bar body;
Fig. 4 is the schematic diagram of Fig. 1 Elastic collet chuck;
Fig. 5 is the schematic diagram of lock nut in Fig. 1;
Fig. 6 is with the elastic collet chuck of external taper and connects handle and with the structural representation of the lock nut of internal taper;
Fig. 7 is the structural representation of Fig. 1 middle sleeve reducing sleeve parts;
Fig. 8 is the schematic diagram that uses extension bar clinch fastener after boring.
Note: sleeve pipe 100, inner hexagonal hole 101, the first sleeve joint hole 102, groove 103, steel ball 12, shell fragment 13, drill bit 14, elasticity extension bar body 200, connecting portion 2000, bellmouth 2001, threaded portion 2002, the first socket boss 203, the first arc groove 204, connect handle 205, groove 2051, elastic collet chuck 300, with the elastic collet chuck 300a of external taper, short slot 301, lock nut 400, with the lock nut 400a of internal taper, sleeve pipe reducing sleeve parts 500, reducing sleeve body 501, the second socket boss 5011, the second arc groove 5012, the second sleeve joint hole 5013, joint face 5014, through hole 5015, clutch unit 520, exterior ring cap 521, spring 522, positioning ball 523, left deep-slotted chip breaker 5211, right deep-slotted chip breaker 5212.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in further detail, following examples are used for illustrating the utility model, but are not used for limiting scope of the present utility model.
As shown in Fig. 1～5, described extension bar comprises: sleeve pipe 100, elasticity extension bar body 200, elastic collet chuck 300 and lock nut 400;
Described sleeve pipe 100 is the pipe of a hollow, its one end endoporus is inner hexagonal hole 101, other end endoporus is the first sleeve joint hole 102, two ends cylindrical is respectively provided with a groove 103, in described groove 103, be provided with the steel ball 12 that is exposed to groove 103, the external shell fragment 13 of groove 103, described shell fragment 13 is for pressing steel ball 12 in groove 103;
Described elasticity extension bar body 200 one end are the connecting portion 2000 being connected with elastic collet chuck 300, the other end is provided with and connects handle 205, described connecing between handle 205 and connecting portion 2000 is provided with the first socket boss 203, and described the first socket boss 203 is provided with the first arc groove 204;
Described lock nut 400 is for locking described elasticity extension bar body 200 and elastic collet chuck 300;
Extension bar also comprises sleeve pipe reducing sleeve parts 500, and described sleeve pipe reducing sleeve parts 500 are located between described sleeve pipe 100 and described elasticity extension bar body 200;
Described sleeve pipe 100 is connected with screwdriver bit with one end of inner hexagonal hole, and the handle 205 that connects of described elasticity extension bar body 200 is connected with electric tool.
Preferably, described extension bar comprises: with the elasticity extension bar body 200 in internal taper hole 2001 with the elastic collet chuck 300 of external taper, described elastic collet chuck 300 outer walls are provided with short slot 301, described elasticity extension bar body 200 is provided with threaded portion 2002 with connecting portion 2000 peripheries of elastic collet chuck 300, stretch into after the elasticity extension bar body 200 with internal taper hole with the elastic collet chuck 300 of external taper, described lock nut 400 is locked described elasticity extension bar body 200 and elastic collet chuck 300 by described threaded portion 2002.
Preferably, as shown in Figure 6, described extension bar also comprises: with the elastic collet chuck 300a of external taper with the lock nut 400a of internal taper, the described elastic collet chuck 300a with external taper is connected to one end of described elasticity extension bar body 200, locks described elasticity extension bar body 200 and the elastic collet chuck 300a with external taper by the lock nut 400a with internal taper.
Preferably, as shown in Figure 7, described sleeve pipe reducing sleeve parts 500 comprise: reducing sleeve body 501 and clutch unit 520, described reducing sleeve body 501 one end are provided with the second socket boss 5011, described the second socket boss 5011 external surface shape are identical with described the first sleeve joint hole 102 inner surface configurations, described the second socket boss 5011 is provided with second arc groove 5012 corresponding with described sleeve grooves 103, described reducing sleeve body 501 other end inside are provided with second sleeve joint hole 5013 corresponding with the first socket boss 203, described reducing sleeve body 501 other end outsides are provided with joint face 5014, described joint face 5014 is provided with through hole 5015, described clutch unit 520 is located at joint face 5014 outsides, described clutch unit 520 comprises: exterior ring cap 521, two spring 522 and positioning balls 523 that coefficient is identical, described exterior ring cap 521 inner surface shapes are identical with the surface configuration of joint face 5014, and exterior ring cap 521 inner surfaces are provided with two deep-slotted chip breakers (left 5211 and right 5212), described exterior ring cap 521 is socketed on joint face 5014 outsides, two springs 522 are located at respectively exterior ring cap 521 both sides, described positioning ball 523 be located in through hole 5015 and with exterior ring cap 521 contacted inner surfaces.
Described sleeve pipe 100 is connected with screwdriver bit with one end of inner hexagonal hole, the other end is connected with the second socket boss 5011, the first socket boss 203 of described elasticity extension bar body 200 is connected with the second sleeve joint hole 5013, the handle 205 that connects of described elasticity extension bar body is connected with electric tool, in the time that sleeve pipe 100 is inserted in the second socket boss 5011 of reducing sleeve body 501, the second arc groove 5012 places on the second socket boss 5011 of 12 of the interior dew steel balls of the groove 103 interior settings of sleeve pipe 100 in reducing sleeve body 501, external shell fragment 13 can force steel ball 12 to be absorbed on the interior reducing sleeve body 501 that sleeve pipe 100 is fixed on to sleeve pipe reducing sleeve parts 500 of the second arc groove 5012 on the second socket boss 5011, by the clutch unit 520 on sleeve pipe reducing sleeve parts 500, reducing sleeve body 501 is connected or separation with elasticity extension bar body 200 again,
Particularly, in the time that promotion exterior ring cap 521 is turned left, can make the right deep-slotted chip breaker of exterior ring cap 521 be placed in the position of positioning ball 523, the space of right deep-slotted chip breaker 5212 can allow up the first arc groove 204 of emersion disengaging elasticity extension bar body of positioning ball 523, so can make sleeve pipe reducing sleeve parts 500 take out, in the time pulling exterior ring cap 521 to turn right, can make the deep-slotted chip breaker on exterior ring cap 521 left sides be placed in positioning ball 523 positions, the space of left deep-slotted chip breaker 5211 can allow up emersion of positioning ball 523, the second sleeve joint hole 5013 of sleeve pipe reducing sleeve parts 500 can be enclosed within on the first socket boss 203 of elasticity extension bar body, in the time discharging the pulling force of exterior ring cap 521, because of the spring 522 of both sides use same factor, the middle part of the position of exterior ring cap 521 in joint face, make inner surface between the deep-slotted chip breaker on exterior ring cap 521 inner surfaces on positioning ball 523 positions, inner surface between two deep-slotted chip breakers can force positioning ball 523 to be absorbed in the first arc groove 204 of elasticity extension bar body 200, so, can reach sleeve pipe reducing sleeve parts 500 and be fixed on the function on elasticity extension bar body 200, so, can realize the rotational energy of electric tool is transmitted to sleeve pipe 100 as driving fastened by screw to use.
Preferably, the surface configuration of described joint face 5014 comprises: circular, equilateral polygon shape.(in the present embodiment, the surface configuration of joint face is circular)
Preferably, the shape that connects handle 205 described in comprises: circle, triangle, quadrangle and hexagon.(in the present embodiment, connecing the circle that is shaped as of handle)
Preferably, described in connect on the outer surface of handle 205 and be provided with uniformly groove 2051, and the quantity of groove 2051 is at least three.(quantity of the present embodiment further groove is 4)
Preferably, the shape of described the first sleeve joint hole 102 and the second sleeve joint hole 5013 includes: triangle, quadrangle, hexagon or equilateral polygon shape.(in the present embodiment, the shape of the first sleeve joint hole and the second sleeve joint hole all adopts hexagon)
Preferably, the quantity of described short slot 301 is at least two (in the present embodiment, the quantity of short slot is 4), and all short slots are all evenly distributed on the barrel of elastic collet chuck 300.
Preferably, described elastic collet chuck 300 is made up of high elastic modulus alloy steel, tool height compressibility and resilience, and compression zone is determined according to the shank diameter of drill bit.In the time loosening lock nut 400, elastic collet chuck 300 recoils to origin-location, so, can realize be applicable to diameter difference within the specific limits the commonality of various drill bits.The drill bit that also can solve the same size that each manufacturer produces has the problem of different shank diameters.
Preferably, the drill bit being connected with described extension bar can be carpenter, ironworker or build work cement drill bit.
Occupation mode: (by reference to the accompanying drawings shown in 8)
1. drill bit 14 is inserted to the endoporus place of elastic collet chuck 300, then with lock nut 400, elastic collet chuck 300 and drill bit 14 are together lock onto to the taper nose end of elasticity extension bar body 200, the handle 205 that connects of elasticity extension bar body is clamped with the retaining part of electric tool.
2. open electric tool power supply, in machining object, get out the hole needing.
3. one end of sleeve pipe 100 is inserted on the second socket boss 5011 of drill bit and reducing sleeve body 501 one end, again reducing sleeve body 501 other ends are socketed on the first socket boss 203 of elasticity extension bar body 200 by the second sleeve joint hole 5013, and by the clutch unit 520 on sleeve pipe reducing sleeve parts 500, sleeve pipe reducing sleeve parts 500 are fixed on elasticity extension bar body 200.
4. inner hexagonal hole 101 places of sleeve pipe 100 other ends insert and correspond to screwdriver bit.
5. open electric tool, screw is locked to machining object with the slow-speed of revolution.
6. sleeve pipe 100 or sleeve pipe reducing sleeve parts 500 taken off or be inserted in and boring and the work of holding screw can be repeated.
Above embodiment is only for illustrating the utility model; and be not limitation of the utility model; the those of ordinary skill in relevant technologies field; in the situation that not departing from spirit and scope of the present utility model; can also make a variety of changes and modification; therefore all technical schemes that are equal to also belong to category of the present utility model, and scope of patent protection of the present utility model should be defined by the claims.
Claims (10)
1. the extension bar that electric hammer and electric drill are used, itself and electric tool are used in conjunction with, and it is characterized in that, and described extension bar comprises: sleeve pipe, elasticity extension bar body, elastic collet chuck and lock nut;
Described sleeve pipe is the pipe of a hollow, and its one end endoporus is inner hexagonal hole, and other end endoporus is the first sleeve joint hole, two ends cylindrical is respectively provided with a groove, in described groove, be provided with the steel ball that is exposed to groove, the external shell fragment of groove, described shell fragment is for pressing steel ball in groove;
Described elasticity extension bar body one end is the connecting portion being connected with elastic collet chuck, and the other end is provided with and connects handle, described in connect and between handle and connecting portion, be provided with the first socket boss, described the first socket boss is provided with the first arc groove;
Described lock nut is used for locking described elasticity extension bar body and elastic collet chuck;
Extension bar also comprises sleeve pipe reducing sleeve parts, and described sleeve pipe reducing sleeve parts are located between described sleeve pipe and described elasticity extension bar body;
Described sleeve pipe is connected with screwdriver bit with one end of inner hexagonal hole, and the handle that connects of described elasticity extension bar body is connected with electric tool.
2. extension bar as claimed in claim 1, it is characterized in that, described extension bar comprises: with the elasticity extension bar body in internal taper hole with the elastic collet chuck of external taper, described elastic collet chuck outer wall is provided with short slot, the connecting portion periphery of described elasticity extension bar body and elastic collet chuck is provided with threaded portion, stretch into after the elasticity extension bar body with internal taper hole with the elastic collet chuck of external taper, described lock nut is locked described elasticity extension bar body and elastic collet chuck by described threaded portion.
3. extension bar as claimed in claim 1, it is characterized in that, described extension bar also comprises: with the elastic collet chuck of external taper with the lock nut of internal taper, the described elastic collet chuck with external taper is connected to one end of described elasticity extension bar body, by lock described elasticity extension bar body and the elastic collet chuck with external taper with the lock nut of internal taper.
4. extension bar as claimed in claim 1, it is characterized in that, described sleeve pipe reducing sleeve parts comprise: reducing sleeve body and clutch unit, described reducing sleeve body one end is provided with the second socket boss, described the second socket boss external surface shape is identical with described the first socket internal surface of hole shape, described the second socket boss is provided with second arc groove corresponding with described sleeve grooves, described reducing sleeve body other end inside is provided with second sleeve joint hole corresponding with the first socket boss, described reducing sleeve body other end outside is provided with joint face, described joint face is provided with through hole, described clutch unit is located at joint face outside, described clutch unit comprises: exterior ring cap, two spring and positioning balls that coefficient is identical, described exterior ring cap inner surface shape is identical with the surface configuration of joint face, and exterior ring cap inner surface is provided with two deep-slotted chip breakers, described exterior ring cap is socketed on joint face outside, two springs are located at respectively exterior ring cap both sides, described positioning ball be located in through hole and with exterior ring cap contacted inner surfaces.
5. extension bar as claimed in claim 4, is characterized in that, the surface configuration of described joint face comprises: circular, equilateral polygon shape.
6. extension bar as claimed in claim 1, is characterized in that, described in connect handle shape comprise: circle, triangle, quadrangle and hexagon.
7. extension bar as claimed in claim 6, is characterized in that, described in connect on the outer surface of handle and be provided with uniformly groove, and the quantity of described groove is at least three.
8. extension bar as claimed in claim 4, is characterized in that, the shape of described the first sleeve joint hole and the second sleeve joint hole includes: triangle, quadrangle, hexagon or equilateral polygon shape.
9. extension bar as claimed in claim 2, is characterized in that, the quantity of described short slot is at least two, and all short slots are all evenly distributed on the barrel of elastic collet chuck, and described elastic collet chuck is made up of high elastic modulus alloy steel.
10. the extension bar as described in claim 1～9 any one, is characterized in that, the drill bit being connected with described extension bar is carpenter, ironworker or build work cement drill bit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420246851.XU CN203853971U (en) | 2014-05-15 | 2014-05-15 | Connecting rod for electric hammers and electric drills |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420246851.XU CN203853971U (en) | 2014-05-15 | 2014-05-15 | Connecting rod for electric hammers and electric drills |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203853971U true CN203853971U (en) | 2014-10-01 |
Family
ID=51603849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420246851.XU Expired - Fee Related CN203853971U (en) | 2014-05-15 | 2014-05-15 | Connecting rod for electric hammers and electric drills |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203853971U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019020108A1 (en) * | 2017-07-28 | 2019-01-31 | 博世电动工具（中国）有限公司 | Electric tool and drill adapter thereof |
| CN109834653A (en) * | 2017-11-28 | 2019-06-04 | 苏州宝时得电动工具有限公司 | Adapter and power tool for power tool |
-
2014
- 2014-05-15 CN CN201420246851.XU patent/CN203853971U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019020108A1 (en) * | 2017-07-28 | 2019-01-31 | 博世电动工具（中国）有限公司 | Electric tool and drill adapter thereof |
| CN109834653A (en) * | 2017-11-28 | 2019-06-04 | 苏州宝时得电动工具有限公司 | Adapter and power tool for power tool |
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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: 20141001 Termination date: 20160515 |