CN104308812B - For the impact head of electric hammer - Google Patents
For the impact head of electric hammer Download PDFInfo
- Publication number
- CN104308812B CN104308812B CN201410539245.1A CN201410539245A CN104308812B CN 104308812 B CN104308812 B CN 104308812B CN 201410539245 A CN201410539245 A CN 201410539245A CN 104308812 B CN104308812 B CN 104308812B
- Authority
- CN
- China
- Prior art keywords
- gear frame
- holder housing
- hole
- impact bar
- electric hammer
- 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.)
- Active
Links
Landscapes
- Percussive Tools And Related Accessories (AREA)
Abstract
The invention discloses the impact head for electric hammer, comprise impact bar, the afterbody of impact bar is provided with installation portion, impact bar is set with holder housing, at least two elasticity snap arm are provided with in the rear end of holder housing, through hole through before and after being provided with in holder housing, in holder housing, the front end of through hole is movably equipped with and protects nail cover, at holder housing with protect between nail cover and be provided with front limit device provided; In holder housing, the rear end of through hole is movably equipped with gear frame, gear frame and protect nail cover between be provided with the first spring, stopping means after being provided with between holder housing and gear frame; Protect in nail cover and gear frame be respectively equipped with before and after through first, second open-work, stretch in the first open-work after the second open-work, through hole are passed successively in the front end of impact bar; The clamp mechanism that can prevent elasticity snap arm from expanding outwardly is provided with in the outside of elasticity snap arm.Electric hammer supports the use above-mentioned impact head, electric hammer can be made to carry out stable impacting exactly to nail, thus nail is hammered in object.
Description
Technical field
The present invention relates to electric hammer with the use of impact head field.
Background technology
Electric hammer is mainly used to punch in masonry walls or concrete construction, in order to get the hole in multiple aperture to meet different installation needs, be generally the drill hammer that electric hammer is equipped with plurality of specifications, the mounting structure between these drill hammer with electric hammers is all identical, to facilitate exchange.The concrete form of its mounting structure is: the blind hole being provided with to install drill hammer in the front portion of the cylinder main shaft of electric hammer, the cylinder main shaft of electric hammer is also provided with the retaining mechanism locking drill hammer, the lateral wall of the cylinder spindle front of electric hammer is also provided with a ring annular groove, is provided with can coordinates the installation portion installed with cylinder main shaft at the afterbody of drill hammer; The structure of retaining mechanism conventional is at present: on the sidewall of blind hole, be provided with the open-work communicated with blind hole, steel ball is provided with in open-work, steel ball to stretch in blind hole but not to enter blind hole by open-work, being set with outside cylinder main shaft can along the elasticity head capsule of cylinder main shaft slide anteroposterior, when without External Force Acting, elasticity head capsule is under the action of the spring after front slide, locking washer in elasticity head capsule can push down steel ball, when the locking washer in elasticity head capsule after elasticity head capsule under External Force Acting slides removes the pressing to steel ball backward; The structure of the installation portion of drill hammer afterbody is: the both sides sidewall that drill hammer afterbody is relative is respectively arranged with the strip groove matched with steel ball, and the sidewall of strip groove both sides is also provided with the positioning and guiding groove matched with the positioning and guiding boss on blind hole side arm.When drill hammer is installed, firmly slide backward elasticity head capsule, then after making positioning and guiding trough aligned positioning and guiding boss, the installation portion of drill hammer afterbody is inserted in blind hole, then elasticity head capsule is decontroled, elasticity head capsule resets under the action of the spring after front slide, locking pads sector-meeting now in elasticity head capsule presses steel ball, steel ball is pressed in strip groove, thus is locked in cylinder main shaft by drill hammer.
Electric hammer used at present has an obvious deficiency: that can not be used for being hammered into by nail in wall or other object exactly, its reason is: electric hammer operationally can produce strong impact shock, thus make the head generation shake by a relatively large margin of drill hammer, such drill hammer is just difficult to stablize aim at nail exactly, just cannot impact exactly nail, also just nail cannot be hammered in object.
Summary of the invention
Technical problem to be solved by this invention is: carry out the stable impact head being used for electric hammer impacted exactly by providing a kind of electric hammer that can make to nail.
In order to solve the problem, the technical solution adopted in the present invention is: for the impact head of electric hammer, comprise impact bar, the afterbody of impact bar is provided with the installation portion installed that can match with the cylinder main shaft of electric hammer, the front end surface of impact bar is the shock surface that can impact nail, be characterized in: on impact bar, be set with holder housing, the rear end of holder housing is provided with at least two energy and engages the elasticity snap arm of docking with the annular groove on cylinder main shaft sidewall, through hole through before and after being provided with in holder housing, in holder housing, the front end of through hole is movably set with and protects nail cover, protecting nail cover can slide anteroposterior in through-holes, at holder housing with protect to be provided with between nail cover and prevent from protecting the front limit device provided that nail cover drops out holder housing, in holder housing, the rear end of through hole is movably set with gear frame, gear frame can slide anteroposterior in through-holes, gear frame and protect nail cover between be provided with the first spring, the two ends of the first spring are pressed on gear frame respectively and protect nail and put and strutted to two ends with protecting to follow closely to overlap by gear frame, between holder housing and gear frame, be provided with the rear stopping means preventing gear frame from dropping out holder housing, when elasticity snap arm to engage with annular groove dock after the rear end of gear frame can be resisted against on the front end face of cylinder main shaft, protect in nail cover be provided with before and after through the first open-work, the second open-work through before and after being provided with in gear frame, the front end of impact bar is successively through stretching in the first open-work after the second open-work, through hole, and the position stretched in the first open-work, front end of impact bar can ensure that electric hammer impacts work normally, be provided with in the outside of elasticity snap arm and can prevent elasticity snap arm from expanding outwardly and depart from the clamp mechanism of annular groove.
Further, the aforesaid impact head for electric hammer, wherein: the concrete structure of described front limit device provided is: be provided with annular end cap at holder housing front end face, is provided with the front limit boss that can coordinate slip in through-holes protecting on nail cover rear end sidewall; By the medial surface of annular end cap block front limit boss to prevent protect nail cover drop out holder housing.
Further, the aforesaid impact head for electric hammer, wherein: the rubber sleeve that can prevent from protecting nail cover nose wear is also installed in the front end protecting nail cover.
Further, the aforesaid impact head for electric hammer, wherein: the concrete structure of described rear stopping means is: in holder housing through hole rear end sidewall on be provided with interior positive stop lug boss, gear frame front end side wall is provided with the rear positive stop lug boss that can coordinate slip in through-holes; Blocking rear positive stop lug boss by the medial surface of interior positive stop lug boss prevents gear frame from dropping out holder housing.
Further, the aforesaid impact head for electric hammer, wherein: be along the circumferential direction evenly provided with four elasticity snap arm in the rear end of holder housing, the inner side of each elasticity snap arm rear end is provided with the fastening boss that can snap in annular groove.
Further, the aforesaid impact head for electric hammer, wherein: the medial surface of each fastening boss is outwardly arcwall face.
Further, the aforesaid impact head for electric hammer, wherein: the concrete structure of described clamp mechanism is: on gear frame, be provided with the catch stretched backward, catch is positioned at the outside of elasticity snap arm after stretching out backward from the breach through hole back-end sidewall, also Shifting rack is set with in the rear end of holder housing, Shifting rack can along the rear end lateral surface slide anteroposterior of holder housing, and Shifting rack and gear frame fix; Shifting rack can drive gear frame travel forward and compress the first spring under the effect of external force, and catch can leave the outside of elasticity snap arm along with travelling forward of gear frame.
Further, the aforesaid impact head for electric hammer, wherein: in holder housing, be also provided with the anti-drop device preventing impact bar from dropping out holder housing, its concrete structure is: in the sidewall of gear frame, be provided with the pin-and-hole running through gear frame, in pin-and-hole, position-limitting pin is installed, in impact bar, be provided with the rectangular through hole that the axis direction along impact bar is arranged, position-limitting pin is through rectangular through hole.
Further, the aforesaid impact head for electric hammer, wherein: between gear frame and impact bar, be provided with the antichattering system that can prevent from rocking before and after impact bar, its concrete structure is: in gear frame the second open-work rear end sidewall on be provided with the rear annular boss that can match with the sidewall of impact bar, the sidewall of impact bar is provided with annular boss before matching with the second open-work in gear frame, front, the second spring is provided with between rear annular boss, before the two ends of the second spring are pressed on respectively, on rear annular boss and by front, rear annular boss struts to two ends, in impact bar, the rear end of rectangular through hole compresses position-limitting pin under the promotion of the second spring.
Advantage of the present invention is: on electric hammer, support the use impact head of the present invention, electric hammer can be made to carry out stable impacting exactly to nail, thus electric hammer can be utilized to be hammered in object by nail.
Accompanying drawing explanation
Fig. 1 is the structural representation of the impact head for electric hammer of the present invention.
Fig. 2 is the detonation configuration schematic diagram of the impact head for electric hammer of the present invention.
Fig. 3 is the structural representation of the holder housing shown in left apparent direction.
Fig. 4 is the structural representation of the gear frame shown in left apparent direction.
Detailed description of the invention
Below in conjunction with specific embodiments and the drawings, the present invention is described in further detail.
For the impact head of electric hammer, as Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4, comprise impact bar 8, the afterbody of impact bar 8 is provided with the installation portion installed that can match with the cylinder main shaft 6 of electric hammer, in real work, the structure of the installation portion of impact bar 8 is identical with the structure of the installation portion that the cylinder main shaft 6 of electric hammer matches with on current drill hammer, the concrete structure of the installation portion of impact bar 8 is: the both sides sidewall that impact bar 8 afterbody is relative is respectively arranged with the strip groove 83 matched with the steel ball 62 in cylinder main shaft 6, the sidewall of strip groove 83 both sides is also respectively arranged with the positioning and guiding groove 84 matched with the positioning and guiding boss 64 on blind hole 63 side arm in cylinder main shaft 6.The front end surface of impact bar 8 is the shock surface 85 that can impact nail, in the present embodiment, shock surface 85 is smooth plane, impact bar 8 is set with holder housing 1, along the circumferential direction evenly be provided with four energy in the rear end of holder housing 1 and engage the elasticity snap arm 12 of docking with the annular groove 61 on cylinder main shaft 6 sidewall, the inner side of each elasticity snap arm 12 rear end is provided with the fastening boss 121 that can snap in annular groove 61, the medial surface of each fastening boss 121 is outwardly arcwall face, arcwall face can be convenient to the clamping between elasticity snap arm 12 and annular groove 61, through hole 11 through before and after being provided with in holder housing 1, in holder housing 1, the front end of through hole 11 is movably set with and protects nail cover 3, protect nail cover 3 can in through hole 11 slide anteroposterior, protecting can effective buffering percussive force when nail cover 3 such slip setting in through hole 11 is to make to protect and following closely cover 3 and nailed object surface impacts, thus extend the service life of protecting nail cover 3, the rubber sleeve 33 that can prevent from protecting nail cover 3 nose wear is also installed in the front end protecting nail cover 3, at holder housing 1 with protect to be provided with between nail cover 3 and prevent from protecting the front limit device provided that nail cover 3 drops out holder housing 1, the concrete structure of front limit device provided is: the annular end cap 2 being installed on holder housing 1 front end face, be provided with the front limit boss 31 that can coordinate slip in through hole 11 protecting on nail cover 3 rear end sidewall, block front limit boss 31 by the medial surface of annular end cap 2 to prevent from protecting nail cover 3 and drop out holder housing 1, in holder housing 1, the rear end of through hole 11 is movably set with gear frame 4, gear frame 4 can in through hole 11 slide anteroposterior, gear frame 4 and protect nail cover 3 between be provided with the first spring 5, the two ends of the first spring 5 are pressed on gear frame 4 respectively and protect on nail cover 3 and by gear frame 4 with protect nail cover 3 and strut to two ends, the rear stopping means preventing gear frame 4 from dropping out holder housing 1 is provided with between holder housing 1 and gear frame 4, the concrete structure of rear stopping means is: in holder housing 1 through hole 11 rear end sidewall on be provided with interior positive stop lug boss 111, gear frame 4 front end side wall is provided with the rear positive stop lug boss 41 that can coordinate slip in through hole 11, blocking rear positive stop lug boss 41 by the medial surface of interior positive stop lug boss 111 prevents gear frame 4 from dropping out holder housing 1, when elasticity snap arm 12 to engage with annular groove 61 dock after the rear end of gear frame 4 can be resisted against on the front end face of cylinder main shaft 6, arrange like this and effectively can be delivered on cylinder main shaft 6 by gear frame 4 by protecting the active force that bears of nail cover 3, in the elasticity snap arm 12 preventing power to be transmitted on holder housing 1, affect the stability of holder housing 1, protect in nail cover 3 be provided with before and after through the first open-work 32, the second open-work 42 through before and after being provided with in gear frame 4, the front end of impact bar 8 is successively through the second open-work 42, stretch in the first open-work 32 after through hole 11, during work, impact bar 8 carries out impacting and impacting nail in the first open-work 32, such setting makes nail can be subject to the location of the first open-work 32 when being impacted by impact bar 8 always, improve stability and accuracy that impact bar 8 impacts nail, as everyone knows, in actual use, need the front end of drill hammer to be tightly pressed on just to be impacted work normally by electric hammer on impacted object, therefore, the position stretched in the first open-work 32, front end of impact bar 8 needs to ensure that electric hammer impacts work normally, be provided with in the outside of elasticity snap arm 12 and can prevent elasticity snap arm 12 from expanding outwardly and depart from the clamp mechanism of annular groove 61, the concrete structure of clamp mechanism is: on gear frame 4, be symmetrically arranged with the catch 46 that two panels stretches backward, catch 46 is positioned at the outside of elasticity snap arm 12 after stretching out backward from the breach 14 sidewall of through hole 11 rear end, now catch 46 can prevent elasticity snap arm 12 from expanding outwardly and departing from annular groove 61, Shifting rack 7 is also set with in the rear end of holder housing 1, Shifting rack 7 can along the rear end lateral surface slide anteroposterior of holder housing 1, Shifting rack 7 is fixed by bolt by the installation projection inside it and gear frame 4, Shifting rack 7 can drive gear frame 4 to travel forward and compress the first spring 5 under the effect of external force, catch 46 can leave the outside of elasticity snap arm 12 along with travelling forward of gear frame 4, when catch 46 is not when the outside of elasticity snap arm 12, catch 46 just can not limit elasticity snap arm 12 and expands outwardly thus be convenient to pull down holder housing 1, and Shifting rack 7 plays the effect linked with gear frame 4, the anti-drop device preventing impact bar 8 from dropping out holder housing 1 is also provided with in holder housing 1, its concrete structure is: in the sidewall of gear frame 4, be provided with the pin-and-hole 45 running through gear frame 4, position-limitting pin 43 is installed in pin-and-hole 45, the rectangular through hole 81 that the axis direction along impact bar 8 is arranged is provided with in impact bar 8, position-limitting pin 43 is through rectangular through hole 81, and seesawing of impact bar 8 can be subject to the restriction of position-limitting pin 43, the antichattering system that can prevent from rocking before and after impact bar 8 is also provided with between gear frame 4 and impact bar 8, its concrete structure is: in gear frame 4 second open-work 42 rear end sidewall on be provided with the rear annular boss 44 that can match with the sidewall of impact bar 8, the sidewall of impact bar 8 is provided with annular boss 82 before matching with the second open-work 42 in gear frame 4, front, rear annular boss 82, the second spring 51 is provided with between 44, before the two ends of the second spring 51 are pressed on respectively, rear annular boss 82, on 44 and by front, rear annular boss 82, 44 strut to two ends, in impact bar 8, the rear end of rectangular through hole 81 compresses position-limitting pin 43 under the promotion of the second spring 51, impact bar 8 is so just made optionally to rock front and back.
The using method of the impact head for electric hammer described in the present embodiment is: as shown in Figure 1, the process that impact head is installed on electric hammer is as follows: first, elasticity head capsule 9 on electric hammer is slided backward, the locking washer 91 that now press against steel ball 62 can be followed and move backward together, after steel ball 62 is not by the pressure lock of locking washer 91, steel ball 62 outwards can move under the effect of external force; Then, by Shifting rack 7 forward slip, gear frame 4 also forward slip under the drive of Shifting rack 7, catch 46 can leave the outside of elasticity snap arm 12 along with travelling forward of gear frame 4, and four elasticity snap arm 12 can be expanded outwardly; Next, after making positioning and guiding groove 84 aim at positioning and guiding boss 64, the installation portion of impact bar 8 afterbody is inserted in blind hole 63, make the fastening boss 121 in four elasticity snap arm 12 snap in annular groove 61 simultaneously, in the process, steel ball 62 is first push outside motion by the tail end face of impact bar 8, and then falls within strip groove 83; Finally decontrol elasticity head capsule 9 and Shifting rack 7, elasticity head capsule 9 resets under the action of the spring after front slide, locking washer 91 now in elasticity head capsule 9 can press steel ball 62, steel ball 62 is made to be crushed in strip groove 83, thus impact bar 8 is arranged in cylinder main shaft 6, reset after Shifting rack 7 and gear frame 4 slide under the first spring 5 acts on backward, now catch 46 is positioned at the outside of elasticity snap arm 12, the restriction that elasticity snap arm 12 is subject to catch 46 cannot expand outwardly and depart from annular groove 61, thus is arranged on cylinder main shaft 6 by holder housing 1.In real work, nail to be aimed in nailed object and to make being arranged in by impact end of nail protect nail cover 3 first open-work 32, then starting electric hammer makes the front end of impact bar 8 in the first open-work 32, do ballistic motion and impact nail, until hammered in object by nail.
Beneficial effect of the present invention is: on electric hammer, support the use impact head of the present invention, electric hammer can be made to carry out stable impacting exactly to nail, thus electric hammer can be utilized to be hammered in object by nail.
Claims (10)
1. for the impact head of electric hammer, comprise impact bar, the afterbody of impact bar is provided with the installation portion installed that can match with the cylinder main shaft of electric hammer, the front end surface of impact bar is the shock surface that can impact nail, it is characterized in that: on impact bar, be set with holder housing, the rear end of holder housing is provided with at least two energy and engages the elasticity snap arm of docking with the annular groove on cylinder main shaft sidewall, through hole through before and after being provided with in holder housing, in holder housing, the front end of through hole is movably set with and protects nail cover, protecting nail cover can slide anteroposterior in through-holes, at holder housing with protect to be provided with between nail cover and prevent from protecting the front limit device provided that nail cover drops out holder housing, in holder housing, the rear end of through hole is movably set with gear frame, gear frame can slide anteroposterior in through-holes, gear frame and protect nail cover between be provided with the first spring, the two ends of the first spring are pressed on gear frame respectively and protect nail and put and strutted to two ends with protecting to follow closely to overlap by gear frame, between holder housing and gear frame, be provided with the rear stopping means preventing gear frame from dropping out holder housing, when elasticity snap arm to engage with annular groove dock after the rear end of gear frame can be resisted against on the front end face of cylinder main shaft, protect in nail cover be provided with before and after through the first open-work, the second open-work through before and after being provided with in gear frame, the front end of impact bar is successively through stretching in the first open-work after the second open-work, through hole, and the position stretched in the first open-work, front end of impact bar can ensure that electric hammer impacts work normally, be provided with in the outside of elasticity snap arm and can prevent elasticity snap arm from expanding outwardly and depart from the clamp mechanism of annular groove.
2. the impact head for electric hammer according to claim 1, it is characterized in that: the concrete structure of described front limit device provided is: be provided with annular end cap at holder housing front end face, be provided with the front limit boss that can coordinate slip in through-holes protecting on nail cover rear end sidewall; By the medial surface of annular end cap block front limit boss to prevent protect nail cover drop out holder housing.
3. the impact head for electric hammer according to claim 1 and 2, is characterized in that: be also provided with the rubber sleeve that can prevent from protecting nail cover nose wear in the front end protecting nail cover.
4. the impact head for electric hammer according to claim 1, it is characterized in that: the concrete structure of described rear stopping means is: in holder housing through hole rear end sidewall on be provided with interior positive stop lug boss, gear frame front end side wall is provided with the rear positive stop lug boss that can coordinate slip in through-holes; Blocking rear positive stop lug boss by the medial surface of interior positive stop lug boss prevents gear frame from dropping out holder housing.
5. the impact head for electric hammer according to claim 1, is characterized in that: be along the circumferential direction evenly provided with four elasticity snap arm in the rear end of holder housing, and the inner side of each elasticity snap arm rear end is provided with the fastening boss that can snap in annular groove.
6. the impact head for electric hammer according to claim 5, is characterized in that: the medial surface of each fastening boss is outwardly arcwall face.
7. the impact head for electric hammer according to claim 1 or 5 or 6, it is characterized in that: the concrete structure of described clamp mechanism is: on gear frame, be provided with the catch stretched backward, catch is positioned at the outside of elasticity snap arm after stretching out backward from the breach through hole back-end sidewall, also Shifting rack is set with in the rear end of holder housing, Shifting rack can along the rear end lateral surface slide anteroposterior of holder housing, and Shifting rack and gear frame fix; Shifting rack can drive gear frame travel forward and compress the first spring under the effect of external force, and catch can leave the outside of elasticity snap arm along with travelling forward of gear frame.
8. the impact head for electric hammer according to claim 1 or 2 or 4, it is characterized in that: in holder housing, be also provided with the anti-drop device preventing impact bar from dropping out holder housing, its concrete structure is: in the sidewall of gear frame, be provided with the pin-and-hole running through gear frame, in pin-and-hole, position-limitting pin is installed, in impact bar, be provided with the rectangular through hole that the axis direction along impact bar is arranged, position-limitting pin is through rectangular through hole.
9. the impact head for electric hammer according to claim 8, it is characterized in that: between gear frame and impact bar, be provided with the antichattering system that can prevent from rocking before and after impact bar, its concrete structure is: in gear frame the second open-work rear end sidewall on be provided with the rear annular boss that can match with the sidewall of impact bar, the sidewall of impact bar is provided with annular boss before matching with the second open-work in gear frame, front, the second spring is provided with between rear annular boss, before the two ends of the second spring are pressed on respectively, on rear annular boss and by front, rear annular boss struts to two ends, in impact bar, the rear end of rectangular through hole compresses position-limitting pin under the promotion of the second spring.
10. the impact head for electric hammer according to claim 7, it is characterized in that: in holder housing, be also provided with the anti-drop device preventing impact bar from dropping out holder housing, its concrete structure is: in the sidewall of gear frame, be provided with the pin-and-hole running through gear frame, in pin-and-hole, position-limitting pin is installed, in impact bar, be provided with the rectangular through hole that the axis direction along impact bar is arranged, position-limitting pin is through rectangular through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410539245.1A CN104308812B (en) | 2014-10-14 | 2014-10-14 | For the impact head of electric hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410539245.1A CN104308812B (en) | 2014-10-14 | 2014-10-14 | For the impact head of electric hammer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104308812A CN104308812A (en) | 2015-01-28 |
| CN104308812B true CN104308812B (en) | 2016-02-03 |
Family
ID=52364193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410539245.1A Active CN104308812B (en) | 2014-10-14 | 2014-10-14 | For the impact head of electric hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104308812B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111015972B (en) * | 2019-12-06 | 2021-05-11 | 温州职业技术学院 | Ceramic tile splitting machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3788403A (en) * | 1972-05-15 | 1974-01-29 | W Mitchell | Powered impact tool |
| CN102233563A (en) * | 2010-04-30 | 2011-11-09 | 南京德朔实业有限公司 | Quick clamping device for electric hammer |
| CN202878256U (en) * | 2012-10-15 | 2013-04-17 | 浙江恒友机电有限公司 | Function head enabling rotary hammer to be changed into electric hammer |
| EP2759378A1 (en) * | 2013-01-28 | 2014-07-30 | Chervon (HK) Limited | A multi-tool for fasteners |
| CN204221745U (en) * | 2014-10-14 | 2015-03-25 | 张家港市创基机械设备制造有限公司 | For the impact head of electric hammer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130037289A1 (en) * | 2011-08-11 | 2013-02-14 | Mohammed M. Al-Mutairi | Electric hammer |
-
2014
- 2014-10-14 CN CN201410539245.1A patent/CN104308812B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3788403A (en) * | 1972-05-15 | 1974-01-29 | W Mitchell | Powered impact tool |
| CN102233563A (en) * | 2010-04-30 | 2011-11-09 | 南京德朔实业有限公司 | Quick clamping device for electric hammer |
| CN202878256U (en) * | 2012-10-15 | 2013-04-17 | 浙江恒友机电有限公司 | Function head enabling rotary hammer to be changed into electric hammer |
| EP2759378A1 (en) * | 2013-01-28 | 2014-07-30 | Chervon (HK) Limited | A multi-tool for fasteners |
| CN204221745U (en) * | 2014-10-14 | 2015-03-25 | 张家港市创基机械设备制造有限公司 | For the impact head of electric hammer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104308812A (en) | 2015-01-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104308812B (en) | For the impact head of electric hammer | |
| CN204221745U (en) | For the impact head of electric hammer | |
| CN104942211B (en) | Deep groove ball bearing retainer dismantling method | |
| CN202100268U (en) | Expansion anchor rod capable of being used repeatedly | |
| CN206604926U (en) | A kind of limiting and protecting device of mechanical part | |
| CN202498510U (en) | Special torsional spring mounting tool | |
| CN203993719U (en) | Brake cylinder rod-pulling type disassembling puller | |
| CN104826979A (en) | Rivet removal apparatus | |
| CN105150146B (en) | Impact spanner | |
| CN105196213A (en) | Bearing riveting clamp | |
| CN105499468A (en) | Bolt riveting device | |
| CN207309808U (en) | A kind of bearing locking device dismantling device | |
| CN210530750U (en) | Sliding block type concentric hole expanding drilling tool with central drill bit | |
| CN203527407U (en) | Gas nail gun with rapidly detachable nail box | |
| CN202064974U (en) | Clip for forepoling bar of tunneling head-on temporary support | |
| CN210829333U (en) | Device for disassembling anchor cable | |
| CN204402497U (en) | Be suitable for the driving chassis forward beam of different length drill steel | |
| CN203527383U (en) | Assembling tool for assembling engine crankshaft flat key | |
| CN103206231A (en) | Protecting device of coal mine blasting driving working surfaces | |
| CN204725113U (en) | A kind of dotting machine | |
| CN103567964B (en) | Assembling tool for assembling engine crank shaft flat key | |
| CN204195612U (en) | A kind of novel quick adjustment opening movable wrench | |
| CN203214077U (en) | Edge supporting device for blasting driving surface of coal mine | |
| CN210702139U (en) | Riveting device for vacuum booster | |
| CN210046592U (en) | Auxiliary dismounting device for T-shaped sliding block on double-end stud |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |