CN2666623Y - One-button three-function mechanism used for connecting bar type heavy electric hammer - Google Patents
One-button three-function mechanism used for connecting bar type heavy electric hammer Download PDFInfo
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- CN2666623Y CN2666623Y CN 03221374 CN03221374U CN2666623Y CN 2666623 Y CN2666623 Y CN 2666623Y CN 03221374 CN03221374 CN 03221374 CN 03221374 U CN03221374 U CN 03221374U CN 2666623 Y CN2666623 Y CN 2666623Y
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- cam
- electric hammer
- link
- shift fork
- button
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Abstract
The utility model relates to a one-button three-function mechanism for a connecting-rod heavy electric hammer which is characterized in that the utility model consists of a rotary button (15), a pulling rod (18), a pulling fork (13) and a torsion spring (20); one end of the rotary button (15) is a cam (15-1); the end surface of the cam (15-1) is provided with a pin (17); the end part at one end of the pulling rod (18) is opened with a cam trough (18-1) which is matched with the cam (15-1); the cam end of the rotary button (15) is inserted in the cam trough (18-1) and can be rotated in the trough; with the rotation of the cam (15-1), the pulling rod (18) moves forwards and backwards; the pulling fork (13) is used for supporting a clutch of the connecting-rod electric hammer; one end of the pulling fork (13) is opened with a sliding trough (13-3-1); the pin (17) arranged on the cam of the rotary button is inserted in the sliding trough; with the rotation of the cam (15-1), the whole pulling fork can produce movement under the action of the pin (17), thus driving the clutch to move; one end of the torsion spring (20) is connected with the pulling rod (18); the other end of the torsion spring is fixed on a shell of the connecting-rod electric hammer. The utility model has simple structure and convenient application, and can ensure the connecting-rod heavy electric hammer to implement the conversion of three functions of single-drill, hammer-drill and single shoveling by one rotary button.
Description
Technical field
The utility model relates to the switching mechanism of a kind of electric tool function, and particularly a kind of link-type heavy electric hammer is realized the switching mechanism of three functions (single shovel, single hammer, hammer drill) with a button.
Background technology
The electric hammer industry of home and abroad is used for realizing what two knobs of electric hammer three functions conversion use were realized in linkage now.This structure is that the requirement user finishes by two knob-operated in the function conversion of electric hammer, and is cumbersome in use, requires the user that certain operative knowledge is arranged.At present, adopted the structure of a button three functions abroad on the air-cylinder type heavy electric hammer, this is the trend in market.But in the link-type heavy electric hammer, yet there are no, because will realize that in the rod-type heavy electric hammer button three functions are comparison difficulties.
Summary of the invention
The technical problems to be solved in the utility model is exactly that the function of existing link-type electric hammer will be finished, operate cumbersome and require the user to possess the problem of corresponding operative knowledge by two knobs, comes for people provide an a kind of button three function switching mechanisms that are used for the link-type heavy electric hammer easy to use, reliable effect.
The utility model is made of knob, driving lever, shift fork and torsion spring, one end of knob is a cam, the end face of cam is provided with pin, one end end of driving lever has a cam path that matches with cam, the cam end of knob promptly is inserted in this cam path, can rotate in this groove, along with the rotation of cam, driving lever can produce and move forward and backward; Shift fork is used to hold the clutch of link-type electric hammer, and the one end has chute, and the pin that is located on the knob cam is promptly inserted within it, and along with the rotation of cam, whole shift fork can produce under the effect of pin and move, and produces mobile thereby drive clutch; One end of torsion spring links to each other with driving lever, and the other end is fixed on the housing of link-type electric hammer.
The utility model is simple in structure, and is easy to use, can make the link-type heavy electric hammer realize " single boring ", " hammer drill ", " single shovel " three kinds of function conversion by a knob.
Description of drawings
Fig. 1 is electric hammer list shovel view (containing the knob state).
Fig. 2 bores view (containing the knob state) for the electric hammer list.
Fig. 3 is for being electric hammer hammer drill view (containing the knob state).
Fig. 4 is a structural representation of the present utility model.
Fig. 5 is the schematic diagram under the utility model omission shift fork state.
Among Fig. 4-Fig. 5, the arrow that makes progress is represented single brill state, and arrow is left represented the hammer drill state, and arrow is to the right represented single shovel state
The structural representation of single shovel state when Fig. 6 is applied to the link-type electric hammer for the utility model.
The structural representation of single brill state when Fig. 7 is applied to the link-type electric hammer for the utility model.
The structural representation of hammer drill state when Fig. 8 is applied to the link-type electric hammer for the utility model.
The specific embodiment
As shown in Figure 1, when the electric hammer knob was in single shovel state, the output shaft of electric hammer (1) did not rotate.Hammer stem (2) removes to clash into drill bit under the reciprocal bump of percussion hammer (3), drill bit is produced seesaw, thereby reach single shovel function.
As shown in Figure 2, when the electric hammer knob is in single brill state, the output shaft of electric hammer (1) rotates, percussion hammer (3) does not produce reciprocating motion, just do not remove to clash into hammer stem (2), hammer stem (2) can not clash into drill bit yet simultaneously, therefore bores only to rotatablely move and unmatched back kinergety, so drill bit has only the brill function.
As shown in Figure 3, when the electric hammer turn-knob was in the hammer drill state, the output shaft of electric hammer (1) rotated, hammer stem (2) is delivered to impact energy on the drill bit under the reciprocal bump of percussion hammer (3) simultaneously, and at this moment drill bit not only has rotating energy, impact energy is arranged again, thereby realize hammer drill worker function.
As Fig. 4, shown in Figure 5, the utility model is made of knob (15), driving lever (18), shift fork (13) and torsion spring (20).One end of knob (15) is cam (15-1), cam (15-1) end face is provided with pin (17), one end end of driving lever (18) has a cam path (18-1) that matches with cam (15-1), the cam end of knob (15) promptly is inserted in this cam path (18-1), can in this groove, rotate, along with the rotation of cam (15-1), driving lever (18) can produce and move forward and backward.The profile of driving lever (18) is the L shape, and its galianconism end is used to withstand the sliding sleeve (6) of link-type electric hammer.Shift fork (13) is made of shift fork pin (13-1), saddle (13-2) and shift fork head (13-3) three parts, shift fork pin (13-1) is inserted on the housing of link-type electric hammer, saddle (13-2) is used to hold the clutch of link-type electric hammer, have chute (13-3-1) on the shift fork head (13-3), pin on the knob cam (17) promptly is inserted in this groove, rotation along with cam (15-1), whole shift fork can produce under the effect of pin (17) along axially promptly the moving up and down of shift fork pin (13-1), and produces and moves up and down accordingly thereby drive clutch.One end of torsion spring (20) links to each other with driving lever (18), and the other end is fixed on the housing of link-type electric hammer.The effect of button spring (20) is to use cam (15-1) and driving lever (18) cam path (18-1) to keep in touch, and keeps the pressure of shift fork (18) to the sliding sleeve (6) of link-type electric hammer.
For the ease of linking to each other with spring (20), the long arm end of driving lever (18) and the joint of galianconism end are provided with a carbine (18-2).
Brief description the utility model use once connects the operation principle that the formula electric hammer is realized a button three functions:
As shown in Figure 6, when knob (15) was in single shovel state, driving lever (18) was pushed slide teeth (6) to fixed cover (4) under the promotion of torsion spring (20), and the end tooth interlock of the end tooth of slide teeth (6) and fixed cover (4) breaks away from gamp tooth (7).Pin (17) on the knob (15) is depressed shift fork (13) simultaneously.Make clutch (12) under the pressure of spring (11) with gear (14) interlock.At this moment when motor shaft tooth (16) rotates, gear (14) drives clutch (12), clutch (12) is a spline fitted with crank (10), therefore clutch (12) drives crank (10) rotation, drive piston (8) by connecting rod (9) again and move reciprocatingly, piston (8) moves reciprocatingly percussion hammer (3) to clash into hammer stem by the air compression and produces impact energy.Because sliding sleeve (6) and gamp tooth (7) keep disengaged position, when motor shaft tooth (16) driven gear (17) drove small bevel gear group (19) again and drives gamp tooth (7) rotation again, gamp tooth (7) was idle running on output shaft (1).Therefore output shaft (1) does not change, and has at this moment just realized single shovel function.
As shown in Figure 7, when knob (15) was in single brill state, the cam (15-1) of driving lever (18) in knob (15) promoted to move backward down a segment distance, and sliding sleeve (6) is under the promotion of spring (5) and gamp tooth (7) interlock.Pin (17) on the knob (15) promotes shift fork (13) upwards simultaneously, and shift fork (13) promotes clutch (12) again and moves upward and gear (14) disengagement motor shaft tooth (16) driven gear (14) rotation at this moment.Because gear (14) and throw-out-of clutch.Therefore, gear (14) is gone up idle running at the axle of crank (10).So crank (10) does not change.Piston (8) does not move reciprocatingly yet.Percussion hammer (3) does not impact yet.And at this moment gear (14) drives small bevel gear group (19) rotation in rotation, drives gamp tooth (7) rotation again.Because at this moment gamp tooth (7) is interlock with sliding sleeve (6), and sliding sleeve (6) has keyway to be connected with output shaft (1), thus gamp tooth (7) rotation, sliding sleeve (6) rotation, output shaft (1) is also in rotation.Therefore, at this moment just realized single brill function.
As shown in Figure 8, when knob (15) is in the hammer drill state, driving lever (18) is in position backward under cam (15-1) effect of knob (15), sliding sleeve (6) under the promotion of spring (5) with gamp tooth (7) interlock, simultaneously, pin (17) on the knob (15) is depressed shift fork (13), and clutch (12) is under the effect of spring (11), downwards and gear (14) interlock.At this moment motor shaft tooth (16) rotating band moving gear (14) rotation.Gear (14) is to sting and state with clutch (12), and clutch (12) is that spline is connected with crank (14), so crank (10) also will rotate.Crank (10) drives piston (8) by connecting rod (9) and moves reciprocatingly, percussion hammer under compressed-air actuated effect (3) moves reciprocatingly and clashes into the function that hammer stem (2) produces hammer, gear (14) drives small bevel gear group (19) rotation again simultaneously, and small bevel gear group (19) drives gamp tooth (7) rotation again.Because being in gamp tooth (7), stings and state sliding sleeve (6), and sliding sleeve (6) is connected with output shaft (1) keyway, therefore just driven output shaft (1) and rotated, so under the acting in conjunction of the impact of output shaft (1) rotation and hammer stem (2), just realized the hammer drill function.
In sum, the utility model electric hammer of relating to bar linkage structure is only controlled the realization of " three functions " with a knob.Mainly control driving lever (20) and shift fork (13) respectively by cam (15-1) on the knob (15) and pin (17) exactly, do seesawing for one, another moves up and down.The former removes to control sliding sleeve (6) and does to seesaw and realize that output shaft (1) changes or do not change, and the latter goes solenoidoperated cluthes (12) to move up and down to realize piston impact and do not impact, finally realize the conversion of " three functions ".
Claims (5)
1, an a kind of button three functional entities that are used for the link-type heavy electric hammer, it is characterized in that it is made of knob (15), driving lever (18), shift fork (13) and torsion spring (20), one end of knob (15) is cam (15-1), the end face of cam (15-1) is provided with pin (17), one end end of driving lever (18) has a cam path (18-1) that matches with cam (15-1), the cam end of knob (15) promptly is inserted in this cam path (18-1), can in this groove, rotate, along with the rotation of cam (15-1), driving lever (18) can produce and move forward and backward; Shift fork (13) is used to hold the clutch of link-type electric hammer, the one end has chute (13-3-1), and the pin (17) that is located on the knob cam is promptly inserted within it, along with the rotation of cam (15-1), whole shift fork can produce under the effect of pin (17) and move, and produces mobile thereby drive clutch; One end of torsion spring (20) links to each other with driving lever (18), and the other end is fixed on the housing of link-type electric hammer.
2, a button three functional entities that are used for the link-type heavy electric hammer as claimed in claim 1, it is characterized in that shift fork (13) is made of shift fork pin (13-1), saddle (13-2) and shift fork head (13-3) three parts, shift fork pin (13-1) is inserted on the housing of link-type electric hammer, saddle (13-2) is used to hold the clutch of link-type electric hammer, chute (13-3-1) is opened on shift fork head (13-3), rotation along with cam (15-1), whole shift fork can produce under the effect of pin (17) along the moving axially of shift fork pin (13-1), and produces corresponding moving thereby drive clutch.
3, a button three functional entities that are used for the link-type heavy electric hammer as claimed in claim 1 or 2 is characterized in that the profile of driving lever (18) is the L shape, and its galianconism end is used to withstand the sliding sleeve (6) of link-type electric hammer.
4, a button three functional entities that are used for the link-type heavy electric hammer as claimed in claim 1, the effect that it is characterized in that button spring (20) is to use cam (15-1) and driving lever (18) cam path (18-1) to keep in touch, and keeps the pressure of shift fork (18) to the sliding sleeve (6) of link-type electric hammer.
5, a button three functional entities that are used for the link-type heavy electric hammer as claimed in claim 3 is characterized in that the long arm end of driving lever (18) and the joint of galianconism end are provided with a carbine (18-2), are used in spring (20) and link to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03221374 CN2666623Y (en) | 2003-04-23 | 2003-04-23 | One-button three-function mechanism used for connecting bar type heavy electric hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03221374 CN2666623Y (en) | 2003-04-23 | 2003-04-23 | One-button three-function mechanism used for connecting bar type heavy electric hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2666623Y true CN2666623Y (en) | 2004-12-29 |
Family
ID=34325900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03221374 Expired - Lifetime CN2666623Y (en) | 2003-04-23 | 2003-04-23 | One-button three-function mechanism used for connecting bar type heavy electric hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2666623Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107263402A (en) * | 2016-04-07 | 2017-10-20 | 浙江德世电器有限公司 | A kind of multifunctional electric hammer of a key control |
-
2003
- 2003-04-23 CN CN 03221374 patent/CN2666623Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107263402A (en) * | 2016-04-07 | 2017-10-20 | 浙江德世电器有限公司 | A kind of multifunctional electric hammer of a key control |
| CN107263402B (en) * | 2016-04-07 | 2023-12-29 | 浙江德硕科技股份有限公司 | Multifunctional electric hammer controlled by one key |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130423 Granted publication date: 20041229 |