CN2832446Y - Hand-held electric hammer relating to handle locking structural improvement - Google Patents
Hand-held electric hammer relating to handle locking structural improvement Download PDFInfo
- Publication number
- CN2832446Y CN2832446Y CN 200520043736 CN200520043736U CN2832446Y CN 2832446 Y CN2832446 Y CN 2832446Y CN 200520043736 CN200520043736 CN 200520043736 CN 200520043736 U CN200520043736 U CN 200520043736U CN 2832446 Y CN2832446 Y CN 2832446Y
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- China
- Prior art keywords
- handle
- steel band
- electric hammer
- held electric
- retaining mechanism
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- Expired - Fee Related
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Abstract
The utility model discloses an improved hand-held electric hammer for handle locking mechanisms, which comprises a bracket, a steel belt, a cross joint nut and a handle, wherein both side surfaces of the middle lower end of the steel belt are provided with two symmetrically distributed hinge ear-ring holes in the shape of a circular slot hole, and the corresponding upper part is provided with two symmetrically distributed waist-shaped elongated slots. The two side surfaces of the cross joint nut are provided with two symmetrically distributed convex ear-ring lugs which are circular, wherein the shape of the ear-ring lug is coincident with that of the circular slot hole in the steel belt and the direction of the ear-ring lug is opposite to that of the slot hole. The centers of the two circular convex ear-ring lugs are screw holes, and two symmetrical vertical angle trapezoid slots are respectively arranged at both sides of the screw holes. The central position at the upper end of the handle is provided with an insert hexagon head bolt, and the end part of the hexagon head bolt is a cone. The utility model makes use of the structure principle of one-point force, two-point thrust and three-point centering, so interference points which are easy to fatigue because of stress can be excluded from mechanical configuration property. The utility model satisfies stable and reliable handle locking and cancels randomness manual boosting compensated tightening when working.
Description
Technical field
The utility model relates to a kind of improved hand-held electric hammer, especially a kind of improved hand-held electric hammer of handle retaining mechanism that relates to.
Background technology
Both at home and abroad in the existing similar electric hammer product, the auxiliary handle retaining mechanism is all used a bit afterburning, 2 thrusts, three points centering, and the operation principle of the secondary locking of steel band connecting screw rod.Under this principle, the concrete structure of various products is slightly different, be specially: screw pair structure handle containing insert nut, stressed hinged support earrings hole, both sides, steel band lower end, all adopt the two buttons that end of flanging to reinforce rigid structure, earrings hole wherein links to each other with T font screw, then constitutes steel band type rigidity and connects inclusion pulling force retaining mechanism.
In above-mentioned electric hammer auxiliary handle retaining mechanism, earrings stressed hole shape in steel band lower end all adopts rectangle and screw rod position T connector portion hook to tighten up and is connected.When electric hammer during in the impact shock operation, screw pair is tightened back hook connecting portion, the inevitable microdisplacement that produces, so cause electric hammer neck engagement position between steel band and bracket, interlock appears in moment tightens up frictional force and reduces and cause trace to rotate, and this moment, all need adopt and manually tighten handle at random, tighten up frictional force with compensation, electric hammer is locked.
Summary of the invention
At the problems referred to above, steel band of the present utility model is connected the force part with nut, has adopted " cross " joint syndeton principle, belongs to free degree flexible connecting structure.Some power of correct application, 2 thrusts, the three points centering structural principle is got rid of easy stressed tired interference point in nature from mechanical structure, and it is reliable and stable to satisfy handle locking, and when stopping operation, randomness manually adds force compensating and tightens.
In order to realize the foregoing invention purpose, the utility model adopts following technical scheme, and a kind of improved hand-held electric hammer of handle retaining mechanism that relates to comprises bracket, steel band, cross joint nut and the auxiliary formation of handle, it is characterized in that,
On the middle lower end part two sides of described steel band, be provided with two symmetrical distribution hinge lug annular distances, it is poroid that it is shaped as circular trough, and upper position is provided with two symmetrical distribution waist shape elongated slots relatively;
The two sides of described cross joint nut are provided with two symmetrical distributions, profiles and are circular convex earrings lug, its shape should be opposite with poroid coincidence of circular trough and direction in the described steel band, described circular convex earrings lug central authorities are screw, and the right-angled trapezium groove branch of two symmetries is located at the both sides of described screw;
The center, upper end of described handle is provided with the inserts hexagon-headed bolt, and the end of described hexagon-headed bolt is a cone.
Description of drawings
Below, with reference to accompanying drawing, for those skilled in the art that, to the detailed description of the present utility model, above-mentioned and other purposes of the present utility model, feature and advantage will be apparent.
Fig. 1 is the sectional structure chart of the utility model handle position;
Fig. 2 is a M direction partial schematic diagram among Fig. 1;
Fig. 3 is the front schematic view of steel band 2;
Fig. 4 is a K direction schematic diagram among Fig. 3;
Fig. 5 is the front schematic view of cross joint nut 3;
Fig. 6 is an A-A direction cutaway view among Fig. 5;
Fig. 7 is a B-B direction cutaway view among Fig. 6;
Fig. 8 is the front section view of assist handle 4;
Fig. 9 is a H direction schematic diagram among Fig. 8.
The specific embodiment
See also shown in attached Fig. 1 and 2, be depicted as handle retaining mechanism of the present utility model and mutual alignment relation.Comprise that bracket 1, steel band 2, cross joint nut 3, handle auxiliary 4 constitute the handle retaining mechanism.
By the structure of accompanying drawing 3,4 visible steel bands 2, this steel band 2 all belongs to spring steel band drawing structural member, and it is shaped as the scroll shaped like narrow.On the middle lower end part two sides of steel band 2, be provided with two symmetrical distribution hinge lug annular distances, it is poroid 21 that it is shaped as circular trough, and upper position is provided with two symmetrical distribution waist shape elongated slots 22 relatively, constitutes to have the flexible stressed required steel band 2 shaped position structures of steel.
Accompanying drawing 5～7 provides cross joint nut 3, this nut 3 is a powder metallurgy structural part, use " cross " joint syndeton principle, its shape facility all with steel band 2 in two the corresponding connection of hinge lug annular distance desired locations, in cross joint nut 3, two sides are provided with two symmetrical distributions, profile is circular convex earrings lug 31, its shape should be opposite with poroid 21 its directions of coincidence of circular trough in the steel band 2, by section is circular 34, the perspective plane is protruding rectangle lug 35, constitutes its right-angled trapezium groove 32, and the center is provided with screw 33.Cross joint nut 3 is made up of symmetrical circular convex earrings lug 31 and screw 33, the right-angled trapezium groove 32 of two symmetries is arranged on the both sides of screw 33, circular convex earrings lug 31 comprises a circular end surface 34 and protruding rectangle lug 35, constitutes cross joint nut 3 shape and structures required in the utility model.
See also the auxiliary handle 4 of accompanying drawing 8,9, this auxiliary handle 4 is a containing insert injecting forming structure spare.Center, upper end at handle 4 is provided with inserts hexagon-headed bolt 41, and the end of hexagon-headed bolt 41 is a cone 42, constitutes in the utility model, and required auxiliary handle 4 contains hexagon-headed bolt 41 shape and structures.
Again referring in Fig. 1,2 the cross joint nut 3, both sides circular convex earrings lug 31, insert respectively in the poroid 21 inner hinge earrings holes of steel band 2 middle and lower part bilateral symmetry circular troughs, cross joint nut 3 Rotate 180s °, auxiliary handle 4 top hexagon-headed bolts 41 are tightened, then constituted the required cross joint of the utility model handle retaining mechanism and connect locking mechanism.
More than all embodiment only for the explanation the utility model usefulness, but not to restriction of the present utility model, person skilled in the relevant technique, under the situation that does not break away from spirit and scope of the present utility model, can also make various conversion or variation, so all technical schemes that are equal to also should belong to category of the present utility model and should be limited by each claim.
Claims (5)
1, a kind of improved hand-held electric hammer of handle retaining mechanism that relates to comprises bracket, steel band, cross joint nut and the auxiliary formation of handle, it is characterized in that,
On the middle lower end part two sides of described steel band, be provided with two symmetrical distribution hinge lug annular distances, it is poroid that it is shaped as circular trough, and upper position is provided with two symmetrical distribution waist shape elongated slots relatively;
The two sides of described cross joint nut are provided with two symmetrical distributions, profiles and are circular convex earrings lug, its shape should be opposite with poroid coincidence of circular trough and direction in the described steel band, described circular convex earrings lug central authorities are screw, and the right-angled trapezium groove branch of two symmetries is located at the both sides of described screw;
The center, upper end of described handle is provided with the inserts hexagon-headed bolt, and the end of described hexagon-headed bolt is a cone.
2, a kind of improved hand-held electric hammer of handle retaining mechanism that relates to according to claim 1 is characterized in that described steel band is a spring steel band drawing structural member.
3, a kind of improved hand-held electric hammer of handle retaining mechanism that relates to according to claim 2 is characterized in that described steel band is the scroll shaped like narrow.
4, a kind of improved hand-held electric hammer of handle retaining mechanism that relates to according to claim 3 is characterized in that described auxiliary handle is a containing insert injecting forming structure spare.
5, a kind of improved hand-held electric hammer of handle retaining mechanism that relates to according to claim 4 is characterized in that, described cross joint nut is a part last metallurgical junction member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520043736 CN2832446Y (en) | 2005-07-25 | 2005-07-25 | Hand-held electric hammer relating to handle locking structural improvement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520043736 CN2832446Y (en) | 2005-07-25 | 2005-07-25 | Hand-held electric hammer relating to handle locking structural improvement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2832446Y true CN2832446Y (en) | 2006-11-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520043736 Expired - Fee Related CN2832446Y (en) | 2005-07-25 | 2005-07-25 | Hand-held electric hammer relating to handle locking structural improvement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2832446Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101186034B (en) * | 2006-11-24 | 2011-05-18 | 罗伯特·博世有限公司 | Auxiliary handle for a hand held machine tool with rapid adjustment by means of two threads |
| US11583992B2 (en) | 2021-03-25 | 2023-02-21 | Milwaukee Electric Tool Corporation | Side handle for power tool |
-
2005
- 2005-07-25 CN CN 200520043736 patent/CN2832446Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101186034B (en) * | 2006-11-24 | 2011-05-18 | 罗伯特·博世有限公司 | Auxiliary handle for a hand held machine tool with rapid adjustment by means of two threads |
| US11583992B2 (en) | 2021-03-25 | 2023-02-21 | Milwaukee Electric Tool Corporation | Side handle for power tool |
| US11919140B2 (en) | 2021-03-25 | 2024-03-05 | Milwaukee Electric Tool Corporation | Side handle for power tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |