CN112847257A - Electric hammer capable of stably switching working state - Google Patents
Electric hammer capable of stably switching working state Download PDFInfo
- Publication number
- CN112847257A CN112847257A CN202110363981.6A CN202110363981A CN112847257A CN 112847257 A CN112847257 A CN 112847257A CN 202110363981 A CN202110363981 A CN 202110363981A CN 112847257 A CN112847257 A CN 112847257A
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- switching
- sleeve
- flanging
- wall
- moving hole
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F3/00—Associations of tools for different working operations with one portable power-drive means; Adapters therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
- B25F5/001—Gearings, speed selectors, clutches or the like specially adapted for rotary tools
Abstract
An electric hammer capable of stably switching working states comprises a machine body, a central shaft, a motor arranged at the left end of the central shaft, a crank connecting rod impact mechanism, a transmission mechanism and a gear set structure, wherein the right part of the central shaft penetrates out of the machine body and is provided with a drilling gear, and the left end of the machine body is provided with a machine base; the right side wall of the machine base is provided with a guide rod and a switching shaft; the guide rod is provided with a first reset frame, a second reset frame and a fork shifting frame which are matched with the guide rod, and the fork shifting frame is positioned between the first reset frame and the second reset frame; an extension arm is arranged on the right side of the fork shifting frame; a limiting plate is arranged at the right end of the extension arm and is positioned on the right side of the drilling gear; the limiting plate is provided with a guide hole matched with the limiting plate. The electric hammer capable of stably switching the working state can switch different working states by only using one spline housing, so that the internal structure of the electric hammer is effectively simplified, the failure rate of the electric hammer is reduced, and the stability of the electric hammer in switching the working states is ensured.
Description
Technical Field
The invention relates to an electric hammer, in particular to an electric hammer capable of stably switching working states.
Background
The electric hammer is an electrodynamic type rotary hammer drill with a safety clutch and a pneumatic hammering mechanism, the electric hammer compresses gas to impact a drill bit by utilizing the principle of piston motion, great strength is not needed by hands, holes can be formed in hard materials such as concrete, bricks, stones and the like, the traditional electric hammer is divided into three working states, the first working state is that impact action and drilling action are carried out simultaneously, the second working state is independent impact, the third working state is independent drilling, direct switching of different working states needs to depend on a switching device inside the electric hammer, the switching device of the traditional electric hammer can realize the switching function mainly by depending on the movement of two spline sleeves, and two structures capable of driving the spline sleeves to move are required to be arranged inside the electric hammer due to the fact that the two spline sleeves are involved, so that the internal parts of the electric hammer are too many and the structure is too complex, not only the assembly is troublesome, and manufacturing cost is too high, and very easily goes wrong, can't guarantee the stability when switching operating condition.
Disclosure of Invention
The invention aims to solve the technical problem of providing the electric hammer capable of stably switching the working state, and the electric hammer can be switched into different working states by only using one spline housing, so that the internal structure of the electric hammer is effectively simplified, the fault rate of the electric hammer is reduced, and the stability of the electric hammer in switching the working states is ensured.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the invention discloses an electric hammer capable of stably switching working states, which comprises a machine body, a central shaft, a motor arranged at the left end of the central shaft, a crank connecting rod impact mechanism, a transmission mechanism and a gear set structure, wherein the right part of the central shaft penetrates out of the machine body and is provided with a drilling gear, and the electric hammer is characterized in that: the left end of the machine body is provided with a machine base; the right side wall of the machine base is provided with a guide rod and a switching shaft; the guide rod is provided with a first reset frame, a second reset frame and a fork shifting frame which are matched with the guide rod, and the fork shifting frame is positioned between the first reset frame and the second reset frame; an extension arm is arranged on the right side of the fork shifting frame; a limiting plate is arranged at the right end of the extension arm and is positioned on the right side of the drilling gear; the limiting plate is provided with a guide hole matched with the limiting plate, and the guide rod penetrates through the guide hole; the side wall of the rear side of the limiting plate is provided with a plurality of limiting teeth meshed with the drilling gear; a supporting bearing is arranged at the right end of the switching shaft; a drilling sleeve is sleeved outside the right part of the switching shaft, and a limiting ring positioned on the right side of the drilling sleeve is arranged on the right part of the switching shaft; a rotary sleeve positioned on the left side of the drilling sleeve is arranged on the switching shaft; the switching shaft is sleeved with an impact sleeve positioned on the left side of the rotating sleeve; a switching sleeve matched with the drilling sleeve and the impact sleeve is sleeved outside the rotating sleeve; the outer wall of the switching sleeve is provided with an annular clamping groove; and a shifting fork matched with the clamping groove is arranged on the upper surface of the part of the shifting fork frame corresponding to the position of the switching sleeve.
The outer wall of the rotary sleeve is provided with a plurality of middle external splines which are uniformly distributed in the circumferential direction; the outer wall of the drilling sleeve is provided with a plurality of right external splines which are uniformly distributed in the circumferential direction; the outer wall of the impact sleeve is provided with a plurality of left external splines which are uniformly distributed in the circumferential direction; the inner wall of the left part of the switching sleeve is provided with an annular inner groove; the inner wall of the inner groove is provided with a plurality of left inner splines matched with the left outer splines; the inner wall of the right part of the switching sleeve is provided with a plurality of right internal splines matched with the middle external splines; the left part of the right external spline is provided with a switching step, and the step surface of the switching step is coplanar with the outer wall of the middle external spline; and the right part of the right external spline is meshed with the drilling gear.
The first reset frame comprises a lower reset plate positioned below the guide rod and a rear reset plate extending upwards from the rear side wall of the right part of the lower reset plate; a first left flanging extends upwards from the left end of the lower reset plate; a first right flanging extends forwards from the right end of the rear resetting plate; the first left flanging is provided with a first left moving hole, the first right flanging is provided with a first right moving hole coaxial with the first left moving hole, and the guide rod penetrates through the first left moving hole and the first right moving hole.
The second reset frame comprises a front reset plate positioned on the front side of the guide rod; a second left flanging extends backwards from the left end of the front reset plate, and a second right flanging extends backwards from the right end of the front reset plate; a second left moving hole is formed in the second left flanging, a second right moving hole coaxial with the second left moving hole is formed in the second right flanging, and the guide rod penetrates through the second left moving hole and the second right moving hole; the second left flanging is positioned on the right side of the first left flanging, and the second right flanging is positioned on the right side of the first right flanging; and a return spring sleeved outside the guide rod is arranged between the second left flanging and the first right flanging.
A third right moving hole is formed in the fork shifting frame; a rear switching plate positioned at the rear side of the rear reset plate extends leftwards from the rear end of the fork-moving frame; a third left flanging extends forwards from the left end of the rear switching plate, and is positioned between the first left flanging and the second left flanging; a third left moving hole coaxial with the third right moving hole is formed in the third left turned edge; the guide rod passes through the third left moving hole and the third right moving hole.
The outer wall of the front side of the machine body is provided with a guide groove, and the outer wall of the rear part of the switching sleeve is attached to the inner wall of the guide groove.
The invention has the beneficial effects that:
compared with the prior art, the electric hammer capable of stably switching the working states can be quickly switched among three different working states only by moving the switching sleeve left and right by adopting the structure of the invention, the switching work is not required to be completed through two spline sleeves, the parts involved in the switching work are effectively reduced, the effect of simplifying the structure is achieved, the condition that the fault rate is too high due to the fact that the structure involved in the switching work is too complex is effectively avoided, the stability of the electric hammer in switching the working states is improved, the use performance of the electric hammer is effectively improved, when the switching shaft rotates, the supporting bearing can effectively start the effect of fixing the end part of the switching shaft, the condition that the switching sleeve is difficult to move left and right to influence the switching performance due to the eccentricity of the switching shaft is avoided, and the stability in switching the working states is further ensured.
Drawings
Fig. 1 is a schematic view showing an angle of an electric hammer of the present invention capable of stably switching an operating state;
fig. 2 is a schematic structural view of another angle of the electric hammer of the present invention capable of stably switching the working state;
FIG. 3 is a schematic view of the first reset yoke, the second reset yoke and the fork carriage at an angle when they are assembled with each other;
FIG. 4 is a schematic view of another angle configuration of the first reset yoke, the second reset yoke and the fork carriage when assembled with each other;
FIG. 5 is a schematic view of the construction of the fork carriage;
FIG. 6 is a schematic view of an angled configuration of the shift collar;
fig. 7 is a schematic view of another angular configuration of the switch sleeve.
Detailed Description
The invention is described in further detail below with reference to the following figures and detailed description:
referring to fig. 1 to 7, the present invention provides an electric hammer capable of stably switching working states, which includes a machine body 1, a central shaft 2, a motor 3, a crank link impact mechanism 27, a transmission mechanism, and a gear set structure, wherein the motor 3, the crank link impact mechanism 27, the transmission mechanism, and the gear set structure are disposed at the left end of the central shaft 2, the right portion of the central shaft 2 penetrates through the machine body and is provided with a drilling gear 4, and the left end of the machine body 1 is provided with a; a guide rod 6 and a switching shaft 7 are arranged on the right side wall of the machine base 5; the guide rod 6 is provided with a first reset frame 8, a second reset frame 9 and a fork shifting frame 10 which are matched with the guide rod, and the fork shifting frame 10 is positioned between the first reset frame 8 and the second reset frame 9; an extension arm 11 is arranged on the right side of the fork-moving frame 10; a limiting plate 12 is arranged at the right end of the extension arm 11, and the limiting plate 12 is positioned at the right side of the drilling gear 4; the limiting plate 12 is provided with a guide hole 13 matched with the limiting plate, and the guide rod 6 penetrates through the guide hole 13; the side wall of the rear side of the limiting plate 12 is provided with a plurality of limiting teeth 14 meshed with the drilling gear 4; a supporting bearing 15 is arranged at the right end of the switching shaft 7; a drilling sleeve 16 is sleeved outside the right part of the switching shaft 7, and a limiting ring 17 positioned on the right side of the drilling sleeve 16 is arranged on the right part of the switching shaft 7; a rotating sleeve 18 positioned on the left side of the drilling sleeve 16 is arranged on the switching shaft 7; an impact sleeve 19 positioned on the left side of the rotating sleeve 18 is sleeved outside the switching shaft 7; a switching sleeve 20 matched with the drilling sleeve 16 and the impact sleeve 19 is sleeved outside the rotating sleeve 18; the outer wall of the switching sleeve 20 is provided with an annular clamping groove 21; the upper surface of the part of the fork-moving frame 10 corresponding to the position of the switching sleeve 20 is provided with a shifting fork 22 matched with the clamping groove 21.
A plurality of middle external splines 1801 which are uniformly distributed in the circumferential direction are arranged on the outer wall of the rotating sleeve 18; the outer wall of the drilling sleeve 16 is provided with a plurality of right external splines 1601 which are uniformly distributed in the circumference; the outer wall of the impact sleeve 19 is provided with a plurality of left external splines 1901 which are uniformly distributed in the circumference; an annular inner groove 23 is formed in the inner wall of the left part of the switching sleeve 20; a plurality of left internal splines 2301 matched with the left external splines 1901 are arranged on the inner wall of the inner groove 23; the inner wall of the right part of the switching sleeve 20 is provided with a plurality of right internal splines 2001 matched with the middle external splines 1801; a switching step 24 is arranged at the left part of the right external spline 1601, and the step surface of the switching step 24 is coplanar with the outer wall of the middle external spline 1801; the right part of the right external spline 1601 is meshed with the drilling gear 4.
The first reset frame 8 comprises a lower reset plate 801 positioned below the guide rod 6 and a rear reset plate 802 extending upwards from the rear side wall of the right part of the lower reset plate 801; a first left flange 803 extends upwards from the left end of the lower reset plate 801; a first right flange 804 extends forwards from the right end of the rear resetting plate 802; the first left flange 803 is provided with a first left moving hole 805, the first right flange 804 is provided with a first right moving hole 806 coaxial with the first left moving hole 805, and the guide rod 6 passes through the first left moving hole 805 and the first right moving hole 806.
The second reset frame 9 comprises a front reset plate 901 positioned at the front side of the guide rod 6; a second left flange 902 extends backwards from the left end of the front reset plate 901, and a second right flange 903 extends backwards from the right end of the front reset plate 901; a second left moving hole 904 is formed in the second left flange 902, a second right moving hole 905 coaxial with the second left moving hole 904 is formed in the second right flange 903, and the guide rod 6 penetrates through the second left moving hole 904 and the second right moving hole 905; the second left turned edge 902 is positioned at the right side of the first left turned edge 803, and the second right turned edge 903 is positioned at the right side of the first right turned edge 804; a return spring 25 sleeved outside the guide rod 6 is arranged between the second left flange 902 and the first right flange 804.
A third right moving hole 1001 is formed in the fork carriage 10; a rear switching plate 1002 positioned at the rear side of the rear reset plate 802 extends leftwards from the rear end of the fork-moving frame 10; a third left turned edge 1003 extends forwards from the left end of the rear switching plate 1002, and the third left turned edge 1003 is located between the first left turned edge 803 and the second left turned edge 902; a third left moving hole 1004 which is coaxial with the third right moving hole 1001 is arranged on the third left turned edge 1003; the guide bar 6 passes through the third left moving hole 1004 and the third right moving hole 1001.
The outer wall of the front side of the machine body 1 is provided with a guide groove 26, and the outer wall of the rear part of the switching sleeve 20 is attached to the inner wall of the guide groove 26.
The using method of the invention is as follows:
the crank connecting rod impact mechanism 27, the transmission mechanism and the gear set structure in the electric hammer are the same as those of the crank connecting rod impact mechanism 27, the transmission mechanism and the gear set structure in the traditional electric hammer, and before the electric hammer is used, a drill bit can be arranged at the right end part of the central shaft 2.
When the motor 3 rotates, the motor shaft of the motor 3 drives the switching shaft 7 to rotate through the gear train structure in the electric hammer, the rotating sleeve 18 and the switching shaft 7 are integrally formed, when the switching shaft 7 rotates, the switching shaft 7 drives the rotating sleeve 18 to rotate, the left part of the right external spline 1601 is provided with a switching step 24, the step surface of the switching step 24 is coplanar with the outer wall of the middle external spline 1801, therefore, the right internal spline 2001 of the inner wall of the switching sleeve 20 sleeved outside the rotating sleeve 18 is not only matched with the middle external spline 1801 of the outer wall of the rotating sleeve 18, but also matched with the switching step 24 of the left part of the right external spline 1601, meanwhile, the left internal spline 2301 of the inner wall of the inner groove 23 in the rotating sleeve 18 is matched with the left external spline 1901 on the outer wall of the impact sleeve 19, so that the switching sleeve 20 at the moment has the effect of simultaneously connecting the impact sleeve 19, the rotating sleeve 18 and the drilling sleeve 16, under the action of the switching sleeve 20, when the rotating sleeve 18 rotates, the impact sleeve 19 and the drilling sleeve 16 rotate along with the rotating sleeve, when the impact sleeve 19 rotates, the crank connecting rod impact mechanism 27 inside the electric hammer can be directly driven to operate, the central shaft 2 is driven to perform impact action, the impact effect of the electric hammer is achieved, the drilling gear 4 is meshed with the right part of the right external spline 1601, when the drilling sleeve 16 rotates, the drilling gear 4 rotates along with the rotating sleeve, and at the moment, the drilling gear 4 drives the central shaft 2 to rotate through a transmission mechanism in the electric hammer.
When the drilling function is needed to be used independently, the fork-moving frame 10 can be shifted to enable the fork-moving frame 10 to move rightwards, because the shifting fork 22 on the fork-moving frame 10 is clamped in the clamping groove 21 of the switching sleeve 20, when the fork-moving frame 10 moves rightwards, the shifting fork 22 on the fork-moving frame 10 can drive the switching sleeve 20 to move rightwards, the right part of the switching sleeve 20 leaves the position of the impact sleeve 19, the left internal spline 2301 in the left part of the switching sleeve 20 is not matched with the left external spline 1901 on the outer wall of the impact sleeve 19, the right external spline 1601 in the right part of the switching sleeve 20 is matched with the middle external spline 1801 on the outer wall of the rotating sleeve 18 and the left part of the right external spline 1601 at the same time, when the rotating sleeve 18 rotates, the rotating sleeve 18 only drives the drilling sleeve 16 to rotate through the switching sleeve 20, at the moment, the crank connecting rod impact mechanism 27 does not work, only the transmission mechanism starts to work under the rotation of the drilling gear 4 to, when the fork arm shifting frame 10 moves to the right, the fork arm shifting frame 10 pushes the second right flange 903 to the right, the third left flange 1003 pushes the second left flange 902 to the right, the return spring 25 between the second left flange 902 and the first right flange 804 is extruded at the moment, deformation occurs to a certain degree, elasticity is generated, and after the fork arm shifting frame 10 loses external force, the fork arm shifting frame 10 resets under the elastic action of the return spring 25.
When the impact function is needed to be used independently, the fork-moving frame 10 can be shifted to enable the fork-moving frame 10 to move to the left, at the moment, the shift fork 22 on the fork-moving frame 10 drives the switching sleeve 20 to move to the left, at the moment, the left part of the switching sleeve 20 leaves the position of the drilling sleeve 16, the right internal spline 2001 in the right part of the switching sleeve 20 is not matched with the left part of the right external spline 1601 on the outer wall of the drilling sleeve 16 any more, at the moment, the right internal spline 2001 in the right part of the switching sleeve 20 is only matched with the middle external spline 1801 on the outer wall of the rotating sleeve 18, the left internal spline 2301 in the left part of the switching sleeve 20 is matched with the left external spline 1901 on the outer wall of the impact sleeve 19, when the rotating sleeve 18 rotates on time, the rotating sleeve 18 can only drive the impact sleeve 19 to rotate through the switching sleeve 20, at the moment, the crank connecting rod impact mechanism 27 works, the crank connecting rod impact mechanism 27 drives, when the limiting plate 12 moves to a certain degree to the left, the limiting teeth 14 on the rear side wall of the limiting plate 12 can be clamped between the teeth of the drilling gear 4, and the limiting teeth 14 cannot rotate, so that the drilling gear 4 can be effectively limited to rotate by the limiting teeth 14, and the drilling gear 4 is clamped, so that the drilling gear 4 is prevented from driving the central shaft 2 to rotate through the transmission mechanism, and the drilling action cannot be completed, when the fork moving frame 10 moves to the left, the fork moving frame 10 can push the first right flange 804 to the left, the third left flange 1003 pushes the first left flange 803 to the left, at this moment, the reset spring 25 is extruded to the left by the first right flange 804, deformation occurs and elasticity occurs, and when the fork moving frame 10 loses external force, the fork moving frame 10 can reset under the elastic action of the reset spring 25.
In conclusion, according to the invention, the electric hammer can be rapidly switched among three different working states only by moving one switching sleeve left and right, the switching work is not required to be completed through two spline sleeves, parts involved in the switching work are effectively reduced, the effect of simplifying the structure is achieved, the situation that the fault rate is too high due to the fact that the structure involved in the switching work is too complex is effectively avoided, the stability of the electric hammer in switching the working states is improved, the service performance of the electric hammer is effectively improved, when the switching shaft 7 rotates, the supporting bearing 15 can effectively start the effect of fixing the end part of the switching shaft 7, the situation that the switching sleeve is difficult to move left and right smoothly due to the eccentricity of the switching shaft 7 to influence the switching performance is avoided, and the stability in switching the working states is further ensured.
Organism 1 front side outer wall is equipped with guide way 26, switches the laminating of cover 20 rear portion outer wall and guide way 26 inner wall mutually, and the existence of guide way 26 can play the guide effect when switching cover 20 and remove, improves the stability when switching cover 20 removes to guarantee the stability of electric hammer when switching operating condition in the at utmost.
Claims (6)
1. The utility model provides a can stably switch operating condition's electric hammer, includes organism, center pin, locates motor, crank connecting rod impact mechanism, drive mechanism, the gear train structure of center pin left end, and the organism is worn out and be equipped with drilling gear, its characterized in that to the center pin right part: the left end of the machine body is provided with a machine base; the right side wall of the machine base is provided with a guide rod and a switching shaft; the guide rod is provided with a first reset frame, a second reset frame and a fork shifting frame which are matched with the guide rod, and the fork shifting frame is positioned between the first reset frame and the second reset frame; an extension arm is arranged on the right side of the fork shifting frame; a limiting plate is arranged at the right end of the extension arm and is positioned on the right side of the drilling gear; the limiting plate is provided with a guide hole matched with the limiting plate, and the guide rod penetrates through the guide hole; the side wall of the rear side of the limiting plate is provided with a plurality of limiting teeth meshed with the drilling gear; a supporting bearing is arranged at the right end of the switching shaft; a drilling sleeve is sleeved outside the right part of the switching shaft, and a limiting ring positioned on the right side of the drilling sleeve is arranged on the right part of the switching shaft; a rotary sleeve positioned on the left side of the drilling sleeve is arranged on the switching shaft; the switching shaft is sleeved with an impact sleeve positioned on the left side of the rotating sleeve; a switching sleeve matched with the drilling sleeve and the impact sleeve is sleeved outside the rotating sleeve; the outer wall of the switching sleeve is provided with an annular clamping groove; and a shifting fork matched with the clamping groove is arranged on the upper surface of the part of the shifting fork frame corresponding to the position of the switching sleeve.
2. An electric hammer capable of stably switching an operating state according to claim 1, wherein: the outer wall of the rotary sleeve is provided with a plurality of middle external splines which are uniformly distributed in the circumferential direction; the outer wall of the drilling sleeve is provided with a plurality of right external splines which are uniformly distributed in the circumferential direction; the outer wall of the impact sleeve is provided with a plurality of left external splines which are uniformly distributed in the circumferential direction; the inner wall of the left part of the switching sleeve is provided with an annular inner groove; the inner wall of the inner groove is provided with a plurality of left inner splines matched with the left outer splines; the inner wall of the right part of the switching sleeve is provided with a plurality of right internal splines matched with the middle external splines; the left part of the right external spline is provided with a switching step, and the step surface of the switching step is coplanar with the outer wall of the middle external spline; and the right part of the right external spline is meshed with the drilling gear.
3. An electric hammer capable of stably switching an operating state according to claim 1, wherein: the first reset frame comprises a lower reset plate positioned below the guide rod and a rear reset plate extending upwards from the rear side wall of the right part of the lower reset plate; a first left flanging extends upwards from the left end of the lower reset plate; a first right flanging extends forwards from the right end of the rear resetting plate; the first left flanging is provided with a first left moving hole, the first right flanging is provided with a first right moving hole coaxial with the first left moving hole, and the guide rod penetrates through the first left moving hole and the first right moving hole.
4. A hammer drill capable of stably switching an operating state according to claim 3, wherein: the second reset frame comprises a front reset plate positioned on the front side of the guide rod; a second left flanging extends backwards from the left end of the front reset plate, and a second right flanging extends backwards from the right end of the front reset plate; a second left moving hole is formed in the second left flanging, a second right moving hole coaxial with the second left moving hole is formed in the second right flanging, and the guide rod penetrates through the second left moving hole and the second right moving hole; the second left flanging is positioned on the right side of the first left flanging, and the second right flanging is positioned on the right side of the first right flanging; and a return spring sleeved outside the guide rod is arranged between the second left flanging and the first right flanging.
5. An electric hammer capable of stably switching an operating state according to claim 4, wherein: a third right moving hole is formed in the fork shifting frame; a rear switching plate positioned at the rear side of the rear reset plate extends leftwards from the rear end of the fork-moving frame; a third left flanging extends forwards from the left end of the rear switching plate, and is positioned between the first left flanging and the second left flanging; a third left moving hole coaxial with the third right moving hole is formed in the third left turned edge; the guide rod passes through the third left moving hole and the third right moving hole.
6. An electric hammer capable of stably switching an operating state according to claim 1, wherein: the outer wall of the front side of the machine body is provided with a guide groove, and the outer wall of the rear part of the switching sleeve is attached to the inner wall of the guide groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110363981.6A CN112847257A (en) | 2021-04-03 | 2021-04-03 | Electric hammer capable of stably switching working state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110363981.6A CN112847257A (en) | 2021-04-03 | 2021-04-03 | Electric hammer capable of stably switching working state |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112847257A true CN112847257A (en) | 2021-05-28 |
Family
ID=75992176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110363981.6A Pending CN112847257A (en) | 2021-04-03 | 2021-04-03 | Electric hammer capable of stably switching working state |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112847257A (en) |
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2021
- 2021-04-03 CN CN202110363981.6A patent/CN112847257A/en active Pending
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