CN208681504U - The hammer shelves self-locking device of poll pick electric tool - Google Patents
The hammer shelves self-locking device of poll pick electric tool Download PDFInfo
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- CN208681504U CN208681504U CN201821223379.2U CN201821223379U CN208681504U CN 208681504 U CN208681504 U CN 208681504U CN 201821223379 U CN201821223379 U CN 201821223379U CN 208681504 U CN208681504 U CN 208681504U
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- 230000007246 mechanism Effects 0.000 claims description 17
- 230000000712 assembly Effects 0.000 claims description 13
- 238000000429 assembly Methods 0.000 claims description 13
- 238000009527 percussion Methods 0.000 claims description 6
- 230000035939 shock Effects 0.000 claims description 4
- 230000009711 regulatory function Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
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- 238000009412 basement excavation Methods 0.000 description 1
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Abstract
The utility model discloses a kind of hammer shelves self-locking devices of poll pick electric tool, upper lid is equipped with conversion knob, the lower end surface for converting knob is poor equipped with high and low position, the rear portion of transmission case body is equipped with switch enclosure, hammer shelves locking switch with the function switch of conversion knob lower end surface cooperation and back handle grip position face is installed, function switch is in parallel with power supply normal open switch after being serially connected with hammer shelves locking switch on switch enclosure；When convert knob and hammer drill gear to it is corresponding when function switch be in an off state；When convert knob with hammer into shape gear to it is corresponding when function switch in an ON state.Using after this structure, have many advantages, such as it is simple and reasonable, easy for operation, not only can guarantee hammer drill gear latch-up-free again and can realize when hammer gear hammer shelves are self-locking and crawl operates, hammer shelves into shape work it is not easy to fatigue.
Description
Technical field
It is lockable when can ensure that the utility model relates to poll pick electric tool, especially one kind using hammer shelves impact operation
The hammer shelves self-locking device of poll pick electric tool.
Background technique
Electric hammer and electric pick are widely used in building, road pavement and dimension due to having the function of hammer drill, single brill, single three kinds of hammer
It repairs, the operations such as house decoration etc. is crushed, chipping, excavation, fluting, and likes by numerous users.Its structure includes
Casing, the motor being mounted on casing, transmission case body, the upper cover being fixed on transmission case body, its structure may be rotatably mounted at biography
Cylinder, connecting rod beater mechanism, rotating mechanism, clutch, the drill bit clamp assemblies being connect with cylinder, defensive position on dynamic cabinet
Handle, transmission case body are fixedly connected with casing, and power supply normal open switch is equipped on back handle, and power supply normal open switch is electrically connected with motor
It connects, motor drives the connecting rod piston of connecting rod beater mechanism to move back and forth in cylinder by eccentric gear, passes through chamber volume
Variation drives impact piston reciprocal impact block stamp, the drill bit on block stamp reciprocating percus-sion drill bit clamp assemblies, to make to bore again
Head obtains impact energy, completes impact function；Eccentric gear, which is engaged by driving gear with driven gear, drives bevel pinion, small
Bevel gear drives cylinder rotation by bevel gear wheel and clutch, and cylinder drives the bit on drill bit clamp assemblies, from
And realize drilling function.When selecting hammer drill gear, clutch may be implemented not only to rotate but also ballistic work in conjunction with bevel gear wheel
Energy；When select hammer into shape gear when, clutch is separated with bevel gear wheel, and drill bit only impact, do not rotated, may be implemented it is single hammer into shape (or cry singly
Chisel) function.
But electric hammer and electric pick have the following problems in use, first is that in hammer drill (rotation is impacted) operation process again
Fitchering blocking phenomenon often occurs, in order to meet safety requirement, guarantees the security performance of user's operation, electric hammer and electricity
Pick is not allow for switch when working under hammer drill gear have self-locking structure, and the switch of point operation control can only be arranged.Second is that in hammer shelves
In the operation process of position, when only impact does not rotate i.e. single hammer or is single chisel function, Oscillation Amplitude is big, and user's long-time is held with a firm grip power supply
Normal open switch continuous work easily causes user's operation fatigue.In view of the above-mentioned problems, many manufacturers and knowledgeable people into
Row exploitation and development, but do not there is relatively satisfactory product to come out so far.
Summary of the invention
In order to overcome the above problem of the existing technology, the purpose of the utility model is to provide a kind of structures simply to close
It manages, is easy for operation, not only can guarantee hammer drill gear latch-up-free but also can realize when hammering gear into shape self-locking hammer shelves and crawl operation, hammering into shape
The hammer shelves self-locking device of the tireless poll pick electric tool of shelves work.
The utility model solves technical solution used by above-mentioned technical problem, it includes casing, is mounted on casing
Motor, transmission case body, the upper cover being fixed on transmission case body may be rotatably mounted at cylinder, connecting rod shock machine on transmission case body
Structure, rotating mechanism, clutch, drill bit clamp assemblies, the back handle connecting with cylinder, transmission case body are fixedly connected with casing,
Power supply normal open switch is installed, power supply normal open switch is electrically connected with motor, and the upper lid is equipped with regulatory function on back handle
The conversion knob of gear, the lower end surface for converting knob is poor equipped with high and low position, and the rear portion of transmission case body is equipped with switch enclosure, switch
It is equipped on box with the function switch of conversion knob lower end surface cooperation, opened with the hammer shelves locking of back handle grip position face
It closes, function switch is in parallel with power supply normal open switch after being serially connected with hammer shelves locking switch；When the indicating bit of conversion knob
Set with hammer drill gear to it is corresponding when function switch and the low level of conversion knob lower end surface cooperate, function switch is in disconnected
Open state；When convert knob indicating positions with hammer gear to it is corresponding when function switch with convert knob lower end surface a high position
Function switch is pressed with merging, function switch is in an ON state.
The further scheme of the utility model, into H, H is controlled in 3- the high and low position difference for converting knob lower end surface
In the range of 15mm, function switch is normal open switch, and hammer shelves locking switch is gear self-lock switch.
The further scheme of the utility model, the connecting rod beater mechanism include block stamp, impact piston, connecting rod piston,
Eccentric gear, block stamp, impact piston and connecting rod piston are successively set in cylinder, and connecting rod piston passes through crank connecting link and eccentric tooth
Wheel connection, eccentric gear engage with the output tooth shaft of motor, and motor drives eccentric gear to rotate by output tooth shaft when work, partially
Heart gear drives connecting rod piston to move back and forth in cylinder by crank connecting link, drives impact to live again by the variation of chamber volume
Fill in reciprocal impact block stamp, the drill bit on block stamp reciprocating percus-sion drill bit clamp assemblies.
The further scheme of the utility model, the rotating mechanism include can with respect to rotational cylinder ground bevel gear wheel,
The bevel pinion that engages with bevel gear wheel, is co-axially located on eccentric gear the driven gear being co-axially located on bevel pinion
Driving gear, driven gear engages with driving gear, and eccentric gear engages band with driven gear by driving gear when work
Dynamic bevel pinion, bevel pinion drive cylinder rotation by bevel gear wheel and clutch.
The further scheme of the utility model, the clutch include the drive sleeve being fixed on cylinder, clutch,
Selector fork, the driving lever being fixed on conversion knob, clutch are axially displaceably arranged in drive sleeve, selector fork connection
Between clutch and driving lever, driving lever drives clutch to make drive sleeve and bevel gear wheel by selector fork when knob is converted in rotation
In conjunction with or separation.
The further scheme of the utility model, being vertically connected between end and casing of the back handle are fixedly connected flexible
Shock-absorbing sleeve.
After adopting the above structure, it has the following advantages compared with the prior art and effect: first is that the rear portion of transmission case body is installed
There is switch enclosure, switch enclosure can not only play heat-blocking action, prevent transmission case body from crossing the normal work of heat affecting switch, Er Qieke
To play insulating effect, switch drain is prevented, improves security performance.Second is that since the lower end surface of conversion knob is equipped with high and low position
Difference, be equipped on switch enclosure with the function switch of conversion knob lower end surface cooperation, with the hammer of back handle grip position face
Shelves locking switch, function switch is in parallel with power supply normal open switch after being serially connected with hammer shelves locking switch, and structure is simple, behaviour
Make easy to use.Third is that when rotation conversion knob make indicating positions and hammer drill gear to it is corresponding when conversion knob in rotary course
Function switch is moved away from, and makes drive sleeve in conjunction with bevel gear wheel by clutch simultaneously, works as function switch
Cooperate with the low level of conversion knob lower end surface, function switch is in reliable off-state, and machine is in electric hammer mode, when pressing
When voltage source normal open switch, motor passes through rotating mechanism, cylinder by connecting rod beater mechanism reciprocating impact drill bit, motor simultaneously again
Drive bit, to realize the electric hammer function that had not only rotated but also impacted, machine can only crawl, cannot be self-locking.Fourth is that when rotation
Conversion knob make indicating positions with hammer gear to it is corresponding when convert knob function switch is gradually pressed in rotary course, and
Separate drive sleeve with bevel gear wheel by clutch simultaneously, function switch and a high position for conversion knob lower end surface are matched
Function switch is pressed in merging, and function switch is in reliable on-state, and machine is in electric pick mode, and motor passes through company
Bar beater mechanism reciprocating impact drill bit, drive sleeve are separated with bevel gear wheel, and motor cannot drive bit, to realize impact
Electric pick function, realized when pressing hammer shelves locking switch self-locking, machine can be with continuous operation, when pressing voltage source normal open switch
May be implemented crawl operation, thus solve the prior art can only crawl operation can not achieve it is self-locking cause operator hold it is fatigable
Problem.
Detailed description of the invention
Fit structure schematic diagram when Fig. 1 is the utility model hammer drill gear.
Fig. 2 is fit structure schematic diagram when the utility model hammers gear into shape.
Fig. 3 is the circuit theory fit structure schematic diagram of the utility model.
Wherein 1 motor, 2 casings, 3 driving gears, 4 eccentric gears, 5 driven gears, 6 bevel pinions, 7 connecting rod pistons, 8 bore
Head clamp assemblies, 9 block stamps, 10 transmission case bodies, 11 impact pistons, 12 cylinders, 13 drive sleeves, 14 clutches, 15 bevel gear wheels, 16
Selector fork, 17 conversion knobs, 18 driving levers, 19 switch enclosures, 20 elastic shock attenuation sets, 21 back handles, 22 hammer drill gears, 23 hammer shelves
Position, 24 upper covers, K1 function switch, K2 hammer shelves locking switch, K3 power supply normal open switch into shape.
Specific embodiment
It is the specific embodiment party of the hammer shelves self-locking device of the utility model poll pick electric tool shown in Fig. 1, Fig. 2 and Fig. 3
Case, it includes casing 2, the motor being mounted on casing 21, transmission case body 10, the upper cover 24 being fixed on transmission case body 10, can
The cylinder 12 that is rotatably installed on transmission case body 10, rotating mechanism, clutch, is connect connecting rod beater mechanism with cylinder 12
Drill bit clamp assemblies 8, back handle 21, transmission case body 10 are fixedly connected with casing 2, and power supply normal open switch is equipped on back handle 21
K3, power supply normal open switch K3 are electrically connected with motor 1, and the upper cover 24 is equipped with the conversion knob 17 of regulatory function gear, are turned
The lower end surface for changing knob 17 is poor equipped with high and low position, and the rear portion of transmission case body 10 is equipped with switch enclosure 19, installs on switch enclosure 19
There is the hammer shelves locking switch with the function switch K1 of conversion 17 lower end surface of knob cooperation and 21 grip position face of back handle
K2, function switch K1 are in parallel with power supply normal open switch K3 after being serially connected with hammer shelves locking switch K2；When conversion knob 17
Indicating positions it is corresponding with 22 pairs of hammer drill gear when function switch K1 and conversion 17 lower end surface of knob low level cooperate, function
Change-over switch K1 is in an off state；The function switch K1 when the indicating positions for converting knob 17 is corresponding with 23 pairs of gear of hammer
Match to merge with a high position for conversion 17 lower end surface of knob and press function switch K1, function switch K1 is in an ON state.
For the high and low position difference for converting 17 lower end surface of knob into H, H controls the range in 3-15mm for operating easily,
Interior, function switch K1 is normal open switch, and hammer shelves locking switch K2 is gear self-lock switch, when hammer shelves locking switch K2 is pressed
Automatically switch is bounced when switching self-locking connection, then pressing to disconnect.
In order to realize impact function, the connecting rod beater mechanism includes block stamp 9, impact piston 11, connecting rod piston 7, partially
Heart gear 4, block stamp 9, impact piston 11 and connecting rod piston 7 are successively set in cylinder 12, connecting rod piston 7 by crank connecting link with
Eccentric gear 4 connects, and eccentric gear 4 engage with the output tooth shaft of motor 1, and motor 1 passes through output tooth shaft drive bias when work
Gear 4 rotates, and eccentric gear 4 drives connecting rod piston 7 to move back and forth in cylinder 12 by crank connecting link, passes through chamber volume
Variation drives 11 reciprocal impact block stamp 9 of impact piston, the drill bit on 9 reciprocating percus-sion drill bit clamp assemblies 8 of block stamp again.
In order to realize rotation function, the rotating mechanism include can with respect to the bevel gear wheel 15 of cylinder 12 rotationally, with
The bevel pinion 6 of the engagement of bevel gear wheel 15, is co-axially located at eccentric gear at the driven gear 5 being co-axially located on bevel pinion 6
Driving gear 3 on 4, driven gear 5 are engaged with driving gear 3, and eccentric gear 4 passes through driving gear 3 and driven tooth when work
5 engagement of wheel drives bevel pinion 6, and bevel pinion 6 drives cylinder 12 to rotate by bevel gear wheel 15 and clutch.
In order to realize power and energy, the clutch include the drive sleeve 13 being fixed on cylinder 12, clutch 14,
Selector fork 16, the driving lever 18 being fixed on conversion knob 17, clutch 14 are axially displaceably arranged in drive sleeve 13, change
Gear shift fork 16 be connected between clutch 14 and driving lever 18, rotation conversion knob 17 when driving lever 18 by selector fork 16 drive from
Clutch 14 makes drive sleeve 13 combine or separate with bevel gear wheel 15.
In order to realize that damping, being vertically connected between end and casing 2 for the back handle 21 are fixedly connected with elastic shock attenuation set
20。
Utility model works principle is as follows: when needing to carry out hammer drill operation, rotation conversion knob 17 makes indicating positions
It is aligned with hammer drill gear 22, converts knob 17 in rotary course, first is that conversion knob 17 moves away from function switch K1,
When the low level of function switch K1 and conversion 17 lower end surface of knob cooperate, as shown in Figure 1, function switch K1 is in reliable
Off-state；Second is that conversion knob 17 drives the work of clutch 14 to make drive sleeve 13 and auger by driving lever 18, selector fork 16
Gear 15 combines, and machine is in electric hammer mode at this time, not only rotatable but also can impact；When pressing power supply normal open switch K3, motor 1
It is powered on, drives eccentric gear 4 to rotate when 1 rotation work of motor, eccentric gear 4 passes through crank connecting link drive connecting rod piston 7
It is moved back and forth in cylinder 12,11 reciprocal impact block stamp 9 of impact piston, block stamp 9 is driven by the variation of chamber volume again
Drill bit on reciprocating percus-sion drill bit clamp assemblies 8 realizes impact；Eccentric gear 4 passes through the driving gear 3 being coaxially disposed again simultaneously
Driven gear 5 is driven to rotate, driven gear 5 drives the bevel pinion 6 of coaxial arrangement to rotate, and bevel pinion 6 drives bevel gear wheel
15 rotations, bevel gear wheel 15 drive cylinder 12 to rotate by clutch 14 and drive sleeve 13, and cylinder 12 passes through drill bit clamp assemblies 8
On drill bit realize rotation, thus realize electric hammer function, machine can only crawl, cannot be self-locking.
When needing to carry out electric pick operation, rotation conversion knob 17 is directed at indicating positions with hammer gear 23, converts knob
17 in rotary course, first is that conversion knob 17 gradually presses function switch K1, when function switch K1 and conversion revolve
The high-order cooperation of 17 lower end surface of button, as shown in Fig. 2, function switch K1 is in reliable on-state；Second is that conversion knob 17
The work of clutch 14 is driven to separate drive sleeve 13 with bevel gear wheel 15 by driving lever 18, selector fork 16, machine is at this time
Electric pick mode, machine are only impacted and are not rotated；When needing crawl operation, power supply normal open switch K3 is pressed, motor 1 is powered on,
Eccentric gear 4 is driven to rotate when 1 rotation work of motor, eccentric gear 4 drives connecting rod piston 7 in cylinder 12 by crank connecting link
It moves back and forth, 11 reciprocal impact block stamp 9 of impact piston is driven by the variation of chamber volume again, 9 reciprocating percus-sion of block stamp bores
Drill bit on head clamp assemblies 8 realizes impact；Eccentric gear 4 drives driven tooth by the driving gear 3 of coaxial arrangement simultaneously again
5 rotation of wheel, driven gear 5 drive the bevel pinion 6 of coaxial arrangement to rotate, and bevel pinion 6 drives bevel gear wheel 15 to rotate, due to
Clutch 14 separates drive sleeve 13 with bevel gear wheel 15, and bevel gear wheel 15 cannot be taken offence by clutch 14 and 13 band of drive sleeve
Cylinder 12 rotate, thus realize electric pick function, machine can only crawl, cannot be self-locking；When needing to work continuously, hammer shelves lock is pressed
Surely switch K2, switchs self-locking, 1 energization continuous work of motor, machine can with continuous operation, working principle with press that power supply is normally opened to be opened
Working principle when closing K3 is identical, no longer repeats herein.To solve the prior art can only crawl operation can not achieve self-locking company
Continuous work causes operator to be easy tired problem.
The above, only specific embodiment of the utility model, not makes in any form the utility model
Limitation, on the basis of not departing from the technical solution of the utility model, made simple modification, equivalent variations or modification are fallen
Enter the protection scope of the utility model.
Claims (6)
1. a kind of hammer shelves self-locking device of poll pick electric tool is passed including casing (2), the motor (1) being mounted on casing (2)
Dynamic cabinet (10), the upper cover (24) being fixed on transmission case body (10) may be rotatably mounted at cylinder on transmission case body (10)
(12), connecting rod beater mechanism, rotating mechanism, clutch, drill bit clamp assemblies (8), the back handle being connect with cylinder (12)
(21), transmission case body (10) is fixedly connected with casing (2), power supply normal open switch (K3) is equipped on back handle (21), power supply is normal
Switch (K3) is electrically connected with motor (1), it is characterized in that: the upper cover (24) is equipped with the conversion knob of regulatory function gear
(17), the lower end surface for converting knob (17) is poor equipped with high and low position, and the rear portion of transmission case body (10) is equipped with switch enclosure (19), opens
It closes to be equipped on box (19) with the function switch (K1) of conversion knob (17) lower end surface cooperation, with back handle (21) and holds position
The hammer shelves locking switch (K2) of face is set, function switch (K1) is normal with power supply after being serially connected with hammer shelves locking switch (K2)
It is in parallel to switch (K3)；When convert indicating positions and the hammer drill gear (22) of knob (17) to it is corresponding when function switch (K1)
Cooperate with the low level of conversion knob (17) lower end surface, function switch (K1) is in an off state；When conversion knob (17)
Indicating positions and hammer gear (23) to it is corresponding when function switch (K1) match with the high position for converting knob (17) lower end surface and merge and press
Lower function switch (K1), function switch (K1) is in an ON state.
2. the hammer shelves self-locking device of poll pick electric tool according to claim 1, it is characterized in that: under the conversion knob (17)
The high and low position difference of end face is H, and H is controlled in the range of 3-15mm, and function switch (K1) is normal open switch, hammer shelves locking
Switching (K2) is gear self-lock switch.
3. the hammer shelves self-locking device of poll pick electric tool according to claim 1 or claim 2, it is characterized in that: the connecting rod impacts
Mechanism includes block stamp (9), impact piston (11), connecting rod piston (7), eccentric gear (4), block stamp (9), impact piston (11) and company
Bar piston (7) is successively set in cylinder (12), and connecting rod piston (7) is connect by crank connecting link with eccentric gear (4), eccentric tooth
Wheel (4) engage with the output tooth shaft of motor (1), and motor (1) is rotated by output tooth shaft drive eccentric gear (4) when work, partially
Heart gear (4) drives connecting rod piston (7) to move back and forth in the cylinder (12) by crank connecting link, again by the variation of chamber volume
Drive impact piston (11) reciprocal impact block stamp (9), the drill bit on block stamp (9) reciprocating percus-sion drill bit clamp assemblies (8).
4. the hammer shelves self-locking device of poll pick electric tool according to claim 3, it is characterized in that: the rotating mechanism includes
Can with respect to the bevel gear wheel (15) of cylinder (12) rotationally, the bevel pinion (6) engaged with bevel gear wheel (15), be co-axially located at
Driven gear (5) on bevel pinion (6), the driving gear (3) being co-axially located on eccentric gear (4), driven gear (5) with
Driving gear (3) engagement, eccentric gear (4) engages drive bevel pinion with driven gear (5) by driving gear (3) when work
(6), bevel pinion (6) drives cylinder (12) rotation by bevel gear wheel (15) and clutch.
5. the hammer shelves self-locking device of poll pick electric tool according to claim 4, it is characterized in that: the clutch includes
The drive sleeve (13) that is fixed on cylinder (12), selector fork (16), is fixed on dialling in conversion knob (17) at clutch (14)
Bar (18), clutch (14) are axially displaceably arranged on drive sleeve (13), and selector fork (16) is connected to clutch (14)
Between driving lever (18), driving lever (18) drives clutch (14) to make to be driven by selector fork (16) when knob (17) are converted in rotation
Set (13) is combined or is separated with bevel gear wheel (15).
6. the hammer shelves self-locking device of poll pick electric tool according to claim 5, it is characterized in that: the back handle (21) is upper
Elastic shock attenuation set (20) are fixedly connected between lower connecting pin and casing (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821223379.2U CN208681504U (en) | 2018-07-31 | 2018-07-31 | The hammer shelves self-locking device of poll pick electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821223379.2U CN208681504U (en) | 2018-07-31 | 2018-07-31 | The hammer shelves self-locking device of poll pick electric tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208681504U true CN208681504U (en) | 2019-04-02 |
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ID=65882917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821223379.2U Withdrawn - After Issue CN208681504U (en) | 2018-07-31 | 2018-07-31 | The hammer shelves self-locking device of poll pick electric tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208681504U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108705490A (en) * | 2018-07-31 | 2018-10-26 | 浙江信普工贸有限公司 | The hammer shelves self-locking device of poll pick electric tool |
-
2018
- 2018-07-31 CN CN201821223379.2U patent/CN208681504U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108705490A (en) * | 2018-07-31 | 2018-10-26 | 浙江信普工贸有限公司 | The hammer shelves self-locking device of poll pick electric tool |
| CN108705490B (en) * | 2018-07-31 | 2023-12-29 | 浙江信普工贸有限公司 | Hammer gear self-locking device of hammer and pick electric tool |
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Granted publication date: 20190402 Effective date of abandoning: 20231229 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190402 Effective date of abandoning: 20231229 |