CN114473964B - Electric hammer with protective structure and using method of electric hammer - Google Patents
Electric hammer with protective structure and using method of electric hammer Download PDFInfo
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- CN114473964B CN114473964B CN202210222870.8A CN202210222870A CN114473964B CN 114473964 B CN114473964 B CN 114473964B CN 202210222870 A CN202210222870 A CN 202210222870A CN 114473964 B CN114473964 B CN 114473964B
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- chisel
- electric hammer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D11/00—Portable percussive tools with electromotor or other motor drive
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
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- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
The invention discloses an electric hammer with a protection structure, which comprises an electric hammer main body and a chisel, wherein a hammering piece and a power piece are arranged in the electric hammer main body, the chisel is arranged on a front end installation position of the electric hammer main body in a sliding manner, the chisel comprises a left sliding block, a right sliding block and a chisel main body, the left sliding block and the right sliding block are arranged on the chisel main body in a sliding manner and are symmetrically arranged, a sliding rod is also arranged in the chisel main body in a sliding manner, and the front end of the sliding rod is rotatably connected with a first connecting rod and a second connecting rod. The invention provides an electric hammer with a protective structure, which can push a left slide block and a right slide block to two sides to enlarge a hole when a chisel is clamped, and alternately enlarge and reduce the hole, so that the clamped chisel can be easily taken out, and the expansion can be slightly more than the previous expansion each time, and the chisel can be easily taken out.
Description
Technical Field
The invention relates to the technical field of electric hammers, in particular to an electric hammer with a protection structure and a using method of the electric hammer.
Background
The electric hammer can be divided into several types, there is the drilling electric hammer, hammering electric hammer and many functions electric hammer, and it is more that general use is the hammering electric hammer, its mainly used destroys wall or ground, motor in it rotates and drives and hits the chisel sword that the piece hammering was installed on the electric hammer, thereby make its hammering wall or ground destroy hitting the thing, but inlay it in the inside very easily when chisel sword is hit, thereby make chisel sword card on the hammering body, and hardly pull out it, need the manual work to pull out it by force, pull out the in-process and cause the electric hammer to damage easily, other situations such as delay time limit for a project simultaneously cause easily.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the electric hammer with the protection structure and the use method of the electric hammer.
In order to solve the technical problems, the invention is solved by the following technical scheme: electric hammer with protective structure, including electric hammer main part and chisel sword, be provided with hammering piece and power spare in the electric hammer main part, the chisel sword slides and sets up on the front end installation position of electric hammer main part, the chisel sword includes left slider, right slider and chisel sword main part, left side slider and right slider all slide and set up in the chisel sword main part, and the symmetry sets up, still slides in the chisel sword main part and is provided with the slide bar, the slide bar front end rotates and is connected with first connecting rod and second connecting rod, the other end of first connecting rod and second connecting rod rotates respectively and sets up on left slider and right slider, and the slide bar slides forward, can open left slider and right slider to both sides roof.
The power part comprises a rotary table and a motor, the motor drives the rotary table to rotate, the hammering part comprises an impact block and a third connecting rod, the impact block is arranged in the electric hammer body in a sliding mode, a rotating shaft is arranged at the tail end of the impact block, one end of the third connecting rod is arranged on the rotating shaft in a rotating mode, the other end of the third connecting rod is arranged on the rotary table in a rotating mode, the rotary table rotates to drive the impact block to slide back and forth, a central firing pin is arranged in the middle of the impact block in a sliding mode and can slide forwards to impact a sliding rod, a wire wheel is further arranged on the rotating shaft and is connected with the central firing pin through a rope, a flat gear is further arranged on the wire wheel in a one-way rotating mode, a rack is further arranged in the power part, when a chisel is clamped, the wire wheel can slide downwards, the one-way rotating is arranged on the rotating shaft, and the flat gear can be meshed with the rack due to the sliding of the impact block in the front and the back, so that the wire wheel rotates to tighten up the central firing pin and can drive the central firing pin to slide forwards to impact the sliding rod.
The utility model has the advantages of its beneficial effect lies in, when the chisel card was inside the wall body, can outwards push away the left slider and the right slider of chisel to enlarge the size of blocking the hole, and after enlarging, dwindle once more, make the outside extraction that the chisel can be better.
In the above scheme, preferably, the middle position of the sliding rod is provided with a convex block, the middle position of the chisel main body is provided with a first cavity, the convex block is arranged in the first cavity in a sliding manner, the sliding rod is further sleeved with a first elastic piece and is located in the first cavity, and two ends of the sliding rod respectively abut against the convex block and the front end face of the first cavity.
The sliding rod has the advantages that when the sliding rod is stressed, the left sliding block and the right sliding block of the chisel are pushed away towards two sides, and the sliding rod can be restored to the initial state under the action of the first elastic piece when the sliding rod is not stressed.
In the above aspect, preferably, the tail of the sliding rod is further provided with an impact head, and the rear end surface of the sliding rod is flush with the rear end surface of the chisel main body in the initial state.
In the above scheme, preferably, the impact block is provided with a sliding hole and a slotted hole, the slotted hole is communicated with the sliding hole, the tail of the central striker is provided with a limiting plate, the limiting plate is derived upwards and is arranged in the slotted hole in a sliding manner, the central striker is further sleeved with a second elastic element, and two ends of the second elastic element respectively abut against the limiting plate and the end face of the sliding hole.
In the above scheme, preferably, still rotate on the striking piece and be provided with the gyro wheel, and its front end that is located the slotted hole, stay cord one end sets up on the limiting plate, walks around the gyro wheel after, sets up on the line wheel.
The limiting plate has the beneficial effects that when the wire wheel rotates, the limiting plate can be pulled to slide forwards through the steering of the roller wheel, so that the central firing pin extends forwards.
In the above scheme, preferably, a unidirectional rotating bearing is arranged on the middle hole of the wire wheel, the rotating shaft is divided into two sections, the diameter of the upper section is smaller than that of the lower section, and an electromagnet is further arranged at the upper end of the rotating shaft.
The electromagnetic wire wheel has the beneficial effects that when the electromagnetic wire wheel is electrified, the electromagnet can press the wire wheel to slide downwards, so that the connection mode of the electromagnetic wire wheel and the rotating shaft is changed into unidirectional rotation.
In the above scheme, preferably, the rotating shaft is further sleeved with a third elastic piece, and two ends of the third elastic piece respectively abut against the upper surface of the third connecting rod and the bottom surface of the reel.
The electromagnetic wheel has the beneficial effects that the electromagnet loses magnetism after power failure, so that the wheel can slide upwards under the action of the third elastic part to recover to an initial state.
The use method of the electric hammer with the protective structure,
s1, mounting a chisel on an electric hammer main body to enable the chisel to work normally.
S2, when the chisel is clamped in the wall body, the electric hammer body is pulled backwards, and meanwhile, the electric hammer is in an opening state.
And S3, the impact block slides back and forth to drive the wire wheel to rotate, and the rope is tightened on the wire wheel, so that the central firing pin is pushed out forwards and impacts the sliding rod when the impact block slides back and forth.
S4: after the central firing pin impacts the sliding rod, the left sliding block and the right sliding block can be pushed to the two sides, so that the clamped hole is opened.
S5: the impact block pushes the central firing pin out a little forward each time, so that the spreading distance of the left sliding block and the right sliding block is increased a little, and the chisel is easy to separate.
The invention has the beneficial effects that: the invention provides an electric hammer with a protective structure, which can push a left slide block and a right slide block to two sides to enlarge a hole when a chisel is clamped, and alternately enlarge and reduce the hole, so that the clamped chisel can be easily taken out, and the expansion can be slightly more than the previous expansion each time, and the chisel can be easily taken out.
Drawings
FIG. 1 is a schematic view of the present invention.
FIG. 2 is an internal schematic view of the present invention.
Fig. 3 is a cross-sectional view of the present invention.
Figure 4 is an exploded view of the chisel according to the present invention.
Fig. 5 is a partially exploded view of a hammer of the present invention.
Fig. 6 is a partial schematic view of a hammer of the present invention.
Detailed description of the preferred embodiments
The invention is described in further detail below with reference to the following detailed description and accompanying drawings: with reference to figures 1-6 of the drawings,
the electric hammer with the protection structure comprises an electric hammer main body 1 and a chisel 2, wherein the chisel 2 comprises a left slider 21, a right slider 22, a chisel main body 23, a sliding rod 24, a first connecting rod 25, a second connecting rod 26 and a first elastic piece 27, an annular groove 231 is arranged at the tail of the chisel main body 23, an annular groove 231 is arranged at the tail of the chisel 2 in a sliding manner, the tail of the chisel 2 is arranged on a mounting head of the electric hammer main body 1 in a sliding manner, a limiting block 11 is further arranged on the electric hammer main body 1, the chisel 2 slides forwards and backwards through the annular groove 231 and is limited on the electric hammer main body 1, a pressure contact switch is arranged on the rear end face of the limiting block 11, when the chisel 2 is clamped on a wall surface, the electric hammer main body 1 is pulled backwards, the edge of the annular groove 231 on the chisel 2 can be pressed on the pressure contact switch, guide shafts are arranged on the left slider 21 and the right slider 22, the sliding rod 24 is arranged in the chisel body 23 in a sliding manner, a convex block 241 is arranged in the middle of the sliding rod 24, a first cavity 232 is arranged in the middle of the chisel body 23, the convex block 241 is arranged in the first cavity 232 in a sliding manner, the first elastic piece 27 is arranged on the sliding rod 24 in a sliding manner and is located in the first cavity 232, two ends of the first elastic piece are respectively abutted to the convex block 241 and the front end face of the first cavity 232, the tail of the sliding rod 24 is provided with a striking head 242, the rear end face of the sliding rod is flush with the rear end face of the chisel body 23 in an initial state, the first connecting rod 25 and the second connecting rod 26 are both rotatably arranged at the front end of the sliding rod 24, and the other ends of the first connecting rod 25 and the second connecting rod 26 are respectively rotatably arranged on the left slider 21 and the right slider 22.
Wherein at the initial condition, because the effect of first elastic component 27, slide bar 24 has a power backward for the rear end of first connecting rod 25 and second connecting rod 26 has a power backward, makes it pull left slider 21 and right slider 22 and draws close to the center, makes chisel 2 form a whole, when slide bar 24 received forward power, drives the rear end of first connecting rod 25 and second connecting rod 26 and slides forward, thereby makes the other end of first connecting rod 25 and second connecting rod 26 open to both sides, thereby makes left slider 21 and right slider 22 open to both sides.
Be provided with hammering piece 3 and power spare 4 in the electric hammer main part 1, power spare 4 includes carousel 41 and motor 42, and motor 42 drives carousel 41 and rotates, hammering piece 3 is including striking piece 31 and third connecting rod 32, striking piece 31 slides and sets up in electric hammer main part 1, and striking piece 31 tail end is provided with axis of rotation 311, be provided with second axis of rotation 411 on carousel 41, and second axis of rotation 411 is not on the centre of a circle of carousel, third connecting rod 32 one end is rotated and is set up in axis of rotation 311, and the other end rotates and sets up on second axis of rotation 411.
When the rotating disc 41 rotates, the second rotating shaft 411 is driven to displace, and the rotating shaft 311 is driven to displace under the pulling of the third connecting rod 32, and since the striking block 31 is arranged in a sliding manner, the striking block 31 is driven to slide back and forth when the rotating disc 41 rotates.
The middle of the impact block 31 is further provided with a central striker 33 in a sliding manner, the front end of the central striker 33 is located behind the impact head 242, the central striker 33 can impact the impact head 242 when sliding forwards, the rotating shaft 311 is divided into two sections, the diameter of the upper section of the rotating shaft 311 is smaller than that of the lower section of the rotating shaft, the rotating shaft 311 is further provided with a wire wheel 34, the wire wheel 34 is arranged on the rotating shaft 311 in a one-way rotating manner when located at the lower section of the rotating shaft 311, the rotating shaft 311 can rotate freely when located at the upper section of the rotating shaft 311, a third elastic member 39 is further arranged below the wire wheel 34, two ends of the third elastic member respectively abut against the upper surface of the third connecting rod 32 and the bottom surface of the wire wheel 34 and are sleeved on the rotating shaft 311, the wire wheel 34 rotates in a one-way manner and is provided with a flat gear 35 in a limiting manner and is provided with magnetism, an electromagnet 38 is further arranged on the upper end surface of the rotating shaft 311, a rack 36 is further arranged in the electric hammer body 1, when the wire wheel 34 is located at the lower section of the rotating shaft 311, the flat gear 35 and the rack 36 are located at the same plane, and when the impacting block 31 slides backwards, the flat gear 35 can be meshed with the rack 36.
The electromagnet 38 is controlled by a pressure-contact switch, when the pressure-contact switch is pressed, the electromagnet 38 is controlled to be started, so that the flat gear 35 slides downwards, the wire wheel 34 is driven to slide downwards, so that the wire wheel is positioned at the lower section of the rotating shaft 311, the rotating shaft 311 rotates in a single direction, the impact block 31 slides backwards under the pulling of the third connecting rod 32, the flat gear 35 on the impact block is meshed with the rack 36 and rotates relatively, the wire wheel 34 is driven to rotate for a certain angle, the wire wheel 34 can be locked and does not rotate reversely because of the one-way rotation, and when the impact block 31 slides forwards under the pulling of the third connecting rod 32, the rotating direction of the flat gear 35 is changed, and the impact block rotates relatively with the wire wheel 34 and does not drive the wire wheel 34 to rotate together.
The striking block 31 is provided with a sliding hole 313 and a long slotted hole 312, the long slotted hole 312 is communicated with the sliding hole 313, the tail of the central striker 33 is provided with a limiting plate 331 which is arranged in the long slotted hole 312 in a sliding manner, the central striker 33 is also sleeved with a second elastic piece 332, two ends of the second elastic piece respectively abut against the limiting plate 331 and the end surface of the sliding hole 313, the striking block 31 is also rotatably provided with a roller 314 which is positioned at the front end of the long slotted hole 312, one end of a pull rope is arranged on the limiting plate 331 and is arranged on the wire wheel 34 after bypassing the roller 314.
Therefore, the reel 34 rotates by a certain angle to draw the rope for a certain distance, so that the central striker 33 slides forwards for a certain distance, when the impact block 31 slides forwards, the protruded central striker 33 impacts the impact head 242, so that the sliding rod 24 slides forwards, and drives the rear ends of the first link 25 and the second link 26 to slide forwards, and drives the other ends of the first link 25 and the second link 26 to open towards two sides, so that the left slider 21 and the right slider 22 open towards two sides, when the impact block 31 slides backwards, the central striker 33 moves along with the impact block 31, so that the forward force on the sliding rod 24 disappears, and under the action of the first elastic member 27, the sliding rod 24 slides backwards, so that the left slider 21 and the right slider 22 are pulled towards the center, so that the chisel 2 forms a whole, so that the chisel 2 completes an opening and closing process, and the impact block 31 slides forwards and backwards and forwards, the rope for a certain distance is drawn back and forth, so that the central striker 33 becomes more and more, so that the left slider 21 and the right slider 22 are drawn out after each impact, and the chisel can be easily drawn out.
The working principle or the using method is as follows:
when chisel 2 card is on the wall, backward pulling electric hammer main part 1, the circular ring groove 231 limit pressure on chisel 2 touches on the pressure touches the switch, thereby control electro-magnet 38 starts, make the spur gear 35 lapse, thereby drive line wheel 34 lapse, thereby make it be located the hypomere of axis of rotation 311, thereby unidirectional rotation is on axis of rotation 311, electric hammer main part 1 continued work this moment, then motor 41 continues to drive carousel 42 and rotates, thereby it takes place the displacement to drive second axis of rotation 411, under the pulling of third connecting rod 32, it also takes place the displacement to drive axis of rotation 311, thereby make striking block 31 slide from beginning to end, and its gliding distance at every turn is the same.
When the striking block 31 slides backwards, the flat gear 35 thereon is meshed with the rack 36 and relatively rotates, so as to drive the wire wheel 34 to rotate a certain angle, gather the rope for a certain distance, so as to enable the central striker 33 to slide forwards for a certain distance, and the front end of the central striker 33 exceeds the front end of the striking block 31, when the striking block 31 slides forwards, the extended central striker 33 strikes the striking head 242, so that the sliding rod 24 slides forwards, the rear ends of the first connecting rod 25 and the second connecting rod 26 slide forwards, and the other ends of the first connecting rod 25 and the second connecting rod 26 are driven to open towards two sides, so that the left slider 21 and the right slider 22 open towards two sides, because the striking block 31 moves back and forth, and therefore, after sliding forwards, the central striker 33 starts to slide backwards, the central striker 33 moves together with the striking block 31, so that the forward force on the sliding rod 24 disappears, and under the action of the first elastic piece 27, the sliding rod 24 slides backwards, so that the left slider 21 and the right slider 22 are pulled towards the center, so that the chisel 2 forms an integral body, thereby enabling the chisel 2 to be clamped, and accordingly to expand a little.
And each time the impact block 31 moves back and forth, the wire wheel 34 can gather the rope for a certain distance, so that the central firing pin 33 is more and more forward, the sliding rod 24 is impacted to move for a larger distance each time, and the left slider 21 and the right slider 22 are opened for a larger distance until the chisel 2 can be easily pulled out.
After the chisel 2 is pulled out, the front end of the chisel is pressed against the wall surface again, the pressing contact of the chisel to the pressing contact switch disappears, so that the control electromagnet 38 is closed, the reel 34 slides upwards under the action of the third elastic piece 39, so that the reel is positioned at the upper section of the rotating shaft 311, so that the reel can rotate freely, and the central striker 33 slides backwards under the action of the second elastic piece 332 to return to the initial state.
When the spool 34 is positioned at the upper stage of the rotation shaft 311, the flat gear 35 is offset from the rack 36, and the striking block 31 does not engage with the rack when sliding back and forth.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. Electric hammer with protective structure, its characterized in that:
the electric hammer comprises an electric hammer main body (1) and a chisel (2), wherein a hammering piece (3) and a power piece (4) are arranged in the electric hammer main body (1), the chisel (2) is arranged at the front end installation position of the electric hammer main body (1) in a sliding mode, the chisel (2) comprises a left sliding block (21), a right sliding block (22) and a chisel main body (23), the left sliding block (21) and the right sliding block (22) are arranged on the chisel main body (23) in a sliding mode and are symmetrically arranged, a sliding rod (24) is further arranged in the chisel main body (23) in a sliding mode, the front end of the sliding rod (24) is rotatably connected with a first connecting rod (25) and a second connecting rod (26), the other ends of the first connecting rod (25) and the second connecting rod (26) are respectively arranged on the left sliding block (21) and the right sliding block (22) in a rotating mode, the sliding rod (24) slides forwards, the left sliding block (21) and the right sliding block (22) can be pushed open towards two sides, and a first elastic piece (27) is sleeved on the sliding rod (24);
the power part (4) comprises a rotary disc (41) and a motor (42), the motor (42) drives the rotary disc (41) to rotate, the hammering part (3) comprises an impact block (31) and a third connecting rod (32), the impact block (31) is arranged in the electric hammer main body (1) in a sliding mode, a rotating shaft (311) is arranged at the tail end of the impact block (31), one end of the third connecting rod (32) is arranged on the rotating shaft (311) in a rotating mode, the other end of the third connecting rod (32) is arranged on the rotary disc (41) in a rotating mode, the rotary disc (41) rotates to drive the impact block (31) to slide back and forth, and a third elastic part (39) is sleeved on the rotating shaft (311); the middle of the impact block (31) is also provided with a central firing pin (33) in a sliding mode, the central firing pin (33) can slide forwards to impact the sliding rod (24), the rotating shaft (311) is also provided with a wire wheel (34) which is connected with the central firing pin (33) through a rope, the wire wheel (34) is also provided with a flat gear (35) in a unidirectional rotating mode, a rack (36) is further arranged in the power part (4), when the chisel (2) is clamped, the wire wheel (34) can slide downwards, the wire wheel is arranged on the rotating shaft (311) in a unidirectional rotating mode, the impact block (31) can slide forwards and backwards to enable the flat gear (35) to be meshed with the rack (36), so that the wire wheel (34) rotates and tightens to drive the central firing pin (33) to slide forwards to impact the sliding rod (24), and a second elastic part (332) is sleeved on the central firing pin (33).
2. The electric hammer with guard structure according to claim 1, wherein: the middle position of the sliding rod (24) is provided with a convex block (241), the middle position of the chisel main body (23) is provided with a first cavity (232), the convex block (241) is arranged in the first cavity (232) in a sliding mode, the first elastic piece (27) is arranged in the first cavity (232), and two ends of the first elastic piece respectively abut against the convex block (241) and the front end face of the first cavity (232).
3. The electric hammer with guard structure of claim 2, wherein: the tail of the sliding rod (24) is also provided with an impact head (242), and the rear end surface of the sliding rod is flush with the rear end surface of the chisel main body (23) in an initial state.
4. The electric hammer with guard structure of claim 1, wherein: the impact block (31) is provided with a sliding hole (313) and a long slotted hole (312), the long slotted hole (312) is communicated with the sliding hole (313), the tail part of the central firing pin (33) is provided with a limiting plate (331), the limiting plate (331) is derived upwards and is arranged in the long slotted hole (312) in a sliding mode, and two ends of the second elastic piece (332) respectively abut against the limiting plate (331) and the end face of the sliding hole (313).
5. The electric hammer with guard structure of claim 4, wherein: the impact block (31) is further rotatably provided with a roller (314) and located at the front end of the slotted hole (312), one end of the pull rope is arranged on the limiting plate (331), and the pull rope is arranged on the wire wheel (34) after bypassing the roller (314).
6. The electric hammer with guard structure of claim 4, wherein: and a one-way rotating bearing is arranged on a middle hole of the wire wheel (34), the rotating shaft (311) is divided into two sections, the diameter of the upper section is smaller than that of the lower section, and the upper end of the rotating shaft is also provided with an electromagnet (38).
7. The electric hammer with guard structure of claim 6, wherein: two ends of the third elastic piece (39) are respectively pressed against the upper surface of the third connecting rod (32) and the bottom surface of the wire wheel (34).
8. The use method of the electric hammer with protective structure according to any one of claims 1-7, wherein:
s1, mounting a chisel (2) on an electric hammer main body (1) to enable the chisel to normally work;
s2, when the chisel (2) is clamped in the wall body, the electric hammer main body (1) is pulled backwards, and meanwhile, the electric hammer is in an opening state;
s3, the impact block (31) slides back and forth to drive the reel (34) to rotate, and the rope is tightened on the reel (34), so that the central firing pin (33) is pushed out forwards and impacts the sliding rod (24) when the impact block (31) slides back and forth;
s4: after the central firing pin (33) impacts on the sliding rod (24), the central firing pin can push the left sliding block (21) and the right sliding block (22) away towards two sides, so that a clamped hole is opened;
s5: the impact block (31) pushes the central firing pin (33) forward a little each time, so that the spreading distance between the left slider (21) and the right slider (22) is increased a little, and the chisel (2) is easier to be separated.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210222870.8A CN114473964B (en) | 2022-03-09 | 2022-03-09 | Electric hammer with protective structure and using method of electric hammer |
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| CN202210222870.8A CN114473964B (en) | 2022-03-09 | 2022-03-09 | Electric hammer with protective structure and using method of electric hammer |
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| CN114473964B true CN114473964B (en) | 2023-03-31 |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN114473964A (en) | 2022-05-13 |
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