CN202278563U - Impact drill - Google Patents
Impact drill Download PDFInfo
- Publication number
- CN202278563U CN202278563U CN2011203721564U CN201120372156U CN202278563U CN 202278563 U CN202278563 U CN 202278563U CN 2011203721564 U CN2011203721564 U CN 2011203721564U CN 201120372156 U CN201120372156 U CN 201120372156U CN 202278563 U CN202278563 U CN 202278563U
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- push button
- speed change
- impact
- switching
- push rod
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Abstract
The utility model discloses an impact drill, which comprises an output shaft, an impact switching device, a high-low speed switching device, a variable speed switching push button and a linkage impact switching mechanism. The variable speed switching push button is connected with the high-low speed switching device, the linkage impact switching mechanism in linkage with the variable speed switching push button drives the variable speed switching push button to switch the high-low speed switching device to a high-speed gear when driving the impact switching device to switch into an impact function, and the linkage impact switching mechanism is connected with the impact switching device. The impact drill is simple in structure, low in cost, more convenient and rapier in impact function switching, and stable and reliable in operation.
Description
Technical field
The utility model relates to the hand-held tool technical field, refers in particular to a kind of percussion drill.
Background technology
At present, the traditional percussion drill that occurs on the market, tool is with three kinds of mode of operations usually; Be respectively electric screw driver, electric drill and percussion drill; Respectively corresponding three the function gears of three kinds of mode of operations of percussion drill, percussion drill are provided with a torsion cup and impact switching device shifter, and the torsion cup connects percussion drill; Through manual rotary torsion cup driving impact switching device shifter, make percussion drill switch to the different functions gear.Yet the required strength of rotary torsion cup is bigger, and manual rotary torsion cup is required great effort very much, switches trouble, and the percussion drill complex structure, and cost is higher.
Like patent announcement number is that " CN 101422896 ", patent name are for shown in the Chinese patent of " percussion drill ".
Or number be that " CN 101229637 ", patent name are for shown in the Chinese patent of " percussion drill " like patent announcement.
Or number be that " CN201239943 ", patent name are for shown in the Chinese patent of " the impact switching device shifter of percussion drill " like patent announcement.
In addition; Conventional percussion drill is equipped with the high low speed of gear-box and switches shelves; Percussion drill is provided with to expose pushes switch and gear-box high and low speed switching device independently outside housing, push switch connection gear case high and low speed switching device, is used for the speed that switching shock bores; Usually by pushing switch comes the driving gearbox high and low speed switching device by hand, the adjustment percussion drill is in fast state or lower-speed state.
When percussion drill is worked under impact conditions; Need percussion drill be switched to fast state; So the operating efficiency that lower-speed state impacts is extremely low. user such as need use impact function, need through the torsion cup percussion drill to be switched to the impact function gear earlier, push switch again; Percussion drill is switched to fast state, need to accomplish to impact to switch and switch two actions with gearbox high-speed.Troublesome poeration.
Consider that from safety problem the impact switching device shifter of conventional percussion drill is independently to separate with the gear-box high and low speed switching device, when the particular job demand is arranged; Need frequent switching electric drill retaining during such as the brill porthole and impact shelves; User's switch operating amount is quite big, and working strength can significantly improve, and causes and uses inconvenience; Security is low, problems such as inefficiency.
Summary of the invention
The purpose of the utility model is to the deficiency of prior art a kind of percussion drill to be provided, and it is simple in structure, and cost is low, and the switching shock function is more convenient, moves reliable and stable.
For realizing above-mentioned purpose, the utility model is realized through following technical scheme.
Percussion drill; Comprise output shaft, impact switching device shifter, high and low speed switching device and speed change switching push button; Speed change is switched push button and is connected high and low speed switching device; Percussion drill also comprise one with speed change switch the push button interlock, when the driving impact switching device shifter switches to impact function, drive speed change and switch push button the coordinated type that high and low speed switching device switches to top gear is impacted switching mechanism, coordinated type impacts switching mechanism and connects and impact switching device shifter.
Said coordinated type impacts switching mechanism and comprises impact switching push button and locking mechanism, impacts switching push button and connects locking mechanism, and switching device shifter is impacted in the locking mechanism connection.
Said percussion drill is provided with tooth case fore shell and tooth case back cover, tooth case back cover are anchored on tooth case fore shell; Be provided with travelling gear and speed change gear ring in the cavity of tooth case back cover; Speed change gear ring and travelling gear engagement; Speed change is switched the surface that push button is arranged at tooth case back cover, and speed change is switched push button and is fixed with a speed change changer lever, and the speed change changer lever connects the speed change gear ring.
Said impact switching device shifter comprises ratchet, bottom ratchet wheel, the slide block by locking mechanism drove, the bearing of going up marketing, sour jujube retainer and fixing with tooth case fore shell; Last ratchet is fixed in output shaft, bottom ratchet wheel and last ratchet engaged, and the bottom ratchet wheel outer surface is provided with and projection; The sour jujube retainer is movably arranged on bottom ratchet wheel one side; Sour jujube retainer inner surface is provided with the draw-in groove corresponding with the projection of bottom ratchet wheel, and slide block is connected in bearing slidably, and upper end of slide block is provided with oblique type groove; The upper end of last marketing is solid to be contacted with the sour jujube retainer, and the lower end is replaced in oblique type groove.
Said locking mechanism comprises sheath, U shaped steel line, back-moving spring, stretches out tooth case fore shell outer push rod and ratchet dish, offers trepanning on the bearing, and sheath is located in the trepanning; Sheath outside both wings offer through hole, and the sheath inboard is provided with the two-layer ratchet slot of height, and the ratchet dish is arranged at putting back-end; Push rod is located in the sheath, and the push rod outside is provided with six projections, and sliding pawl cover front end is replaced with slide block mutually; The rear end of sliding pawl cover is provided with cylinder; The rear end of push rod is resisted against the impact switching push button, the cylinder that is sheathed on sliding pawl cover of push rod, and the outside of sliding pawl cover is provided with three ratchets; The ratchet dish of push rod is replaced and meshed to three ratchets of sliding pawl cover; When impacting switching push button promotion push rod, endwisely slip in the ratchet slot of push rod at sheath, the sliding pawl of ratchet dish promotion of push rod overlaps axially slip while push rod and does low-angle unidirectional rotation, and back-moving spring one end is resisted against sheath, the other end is resisted against the impact switching push button.
The both wings of said impact switching push button are respectively equipped with the baffle plate that stretches out to a side, and plate washer offers skewed slot, and the front end both sides that speed change is switched push button are respectively arranged with the sword sheet that stretches out to a side, and the sword sheet is replaced in the skewed slot of plate washer.
The beneficial effect that the utility model has owing to the employing technique scheme: the utility model is simple in structure, and cost is low, and the switching shock function is more convenient, moves reliable and stable.
Description of drawings
Fig. 1 is the structural representation of the percussion drill of the utility model.
Fig. 2 is an AA cross-sectional view among Fig. 1.
The internal structure sketch map of the percussion drill of Fig. 3 the utility model;
Fig. 4 is the decomposing schematic representation of the percussion drill of the utility model;
Fig. 5 is the structural representation that push button is switched in the impact of the utility model;
Fig. 6 is the structural representation that the speed change of the utility model is switched push button;
------------------------------------------------push rod, 17---is slided pawl cover, 18---cylinder, 19---baffle plate, 20---skewed slot, 21---sword sheets to ratchet dish, 16 to sheath, 15 to bearing, 14 to sour jujube retainer, 13 to slide block, 11 to bottom ratchet wheel, 10 to speed change changer lever, 8 to speed change gear ring, 7 to tooth case back cover, 6 to tooth case fore shell, 5 to speed change switching push button, 3 to output shaft, 2 to go up marketing, 12 to go up ratchet, 9 to impact switching push button, 4 among the figure: 1.
The specific embodiment
A kind of embodiment of the percussion drill of the utility model shown in Fig. 1 to 6, comprises output shaft 1, impact switching device shifter, high and low speed switching device and speed change switching push button 2, and speed change is switched push button 2 and connected high and low speed switching devices.
Percussion drill also comprise one with speed change switch push button 2 interlocks, when the driving impact switching device shifter switches to impact function, drive speed change and switch push button 2 coordinated type that high and low speed switching device switches to top gear is impacted switching mechanism, coordinated type impacts switching mechanism and connects and impact switching device shifter.
Coordinated type impacts switching mechanism and comprises impact switching push button 3 and locking mechanism, impacts switching push button 3 and connects locking mechanisms, and switching device shifter is impacted in the locking mechanism connection.
Percussion drill is provided with tooth case fore shell 4 and is anchored on tooth case fore shell 4 with tooth case back cover 5, tooth case back cover 5; Be provided with travelling gear and speed change gear ring 6 in the cavity of tooth case back cover 5; Speed change gear ring 6 and travelling gear engagement; Speed change is switched the surface that push button 2 is arranged at tooth case back cover 5, and speed change is switched push button 2 and is fixed with a speed change changer lever 7, and speed change changer lever 7 connects speed change gear ring 6.Speed change changer lever 7 is a U-shaped steel wire, and the two ends of speed change changer lever 7 are individually fixed in the both sides of speed change gear ring 6, is used to drive speed change gear ring 6 and moves.
Impact switching device shifter comprise ratchet 8, bottom ratchet wheel 9, by slide block 10 that locking mechanism drove, on be on sale throughout 11, sour jujube retainer 12 and the bearing 13 fixed with tooth case fore shell 4; Last ratchet 8 is fixed in output shaft 1, bottom ratchet wheel 9 and last ratchet 8 engagements, and bottom ratchet wheel 9 outer surfaces are provided with and projection; Sour jujube retainer 12 is movably arranged on bottom ratchet wheel 9 one sides; Sour jujube retainer 12 inner surfaces are provided with the draw-in groove corresponding with the projection of bottom ratchet wheel 9, and slide block 10 is connected in bearing 13 slidably, and slide block 10 upper ends are provided with oblique type groove; The upper end of last marketing is solid to be contacted with sour jujube retainer 12, and the lower end is replaced in oblique type groove.
Locking mechanism comprises sheath 14, U shaped steel line, back-moving spring, stretches out push rod 16 and ratchet dish 15 outside the tooth case fore shell 4, offers trepanning on the bearing 13, and sheath 14 is located in the trepanning; Sheath 14 outside both wings offer through hole; Sheath 14 inboards are provided with the two-layer ratchet slot of height, and ratchet dish 15 is arranged at push rod 16 rear ends, and push rod 16 is located in the sheath 14; Push rod 16 outsides are provided with six projections; Sliding pawl overlaps 17 front ends to be replaced with slide block 10 mutually, and the rear end of sliding pawl cover 17 is provided with cylinder 18, and the rear end of push rod 16 is resisted against impacts switching push button 3; The cylinder 18 that is sheathed on sliding pawl cover 17 of push rod 16; The outside of sliding pawl cover 17 is provided with three ratchets, and the ratchet dish 15 of push rod 16 is replaced and meshed to three ratchets of sliding pawl cover 17, and push rod 16 endwisely slips in the ratchet slot of sheath 14 when impact switching push button 3 promotes push rod 16; The ratchet dish 15 of push rod 16 promotes sliding pawl cover 17 push rod 16 that endwisely slips simultaneously and does low-angle unidirectional rotation, and back-moving spring one end is resisted against sheath 14, the other end is resisted against and impacts switching push button 3.
The both wings that impact switching push button 3 are respectively equipped with the baffle plate 19 that stretches out to a side, and plate washer offers skewed slot 20, and the front end both sides that speed change is switched push button 2 are respectively arranged with the sword sheet 21 that stretches out to a side, and sword sheet 21 is replaced in the skewed slot 20 of plate washer.
Impacting switching device shifter and high and low speed switching device is prior art, is no longer giving unnecessary details a bit.
For further disclosing the utility model, the use new below in conjunction with this practicality describes.
Switching the course of action that gets into impact conditions below in conjunction with the utility model describes.
1. press and impact switching push button 3, promote through push rod 16, sliding melon cover is replaced slide block 10, makes slide block 10 do horizontal movement, accomplishes following two actions:
1.1 the both wings of slide block 10 embed the trip stop space of trip stop pin, stop it to move upward, and accomplish not trip stop function.
1.2 the groove inclined-plane of slide block 10 lifts marketing 11; Last marketing 11 is jack-up sour jujube retainer 12 up, makes itself and bottom ratchet wheel 9 mesh sour jujube retainer 12 circumference deadlock bottom ratchet wheels 9; The output main shaft is axially reciprocating through the interaction of last ratchet 8 and bottom ratchet wheel 9, thereby realizes impact function.
2. the skewed slot 20 that impacts 3 liang of outsides of switching push button forces the sword sheet 21 of the speed change switching push button 2 that offsets with it to lower slider; Gear lever and speed change gear ring 6 are ejected downwards; The ratchet of the ratchet of speed change gear ring 6 and tooth case back cover 5 breaks away from constraint, and gear-box enters into the fast state running.
The course of action that withdraws from impact conditions below in conjunction with the utility model describes.
1. when percussion drill is in impact conditions; After pressing impact switching push button 3, push rod 16 promotes sliding pawl cover 17 simultaneously to front slide, and the ratchet that makes sliding pawl overlap 17 outsides is deviate from sheath 14; The ratchet of sliding pawl cover 17 does not receive the constraint of the low side ratchet slot of sheath 14; Slide pawl cover 17 and do low-angle unidirectional rotation simultaneously with 15 engagements of push rod 16 ratchet dishes, under the bounce effect of slide block 10 back-moving springs, the ratchet of sliding pawl cover 17 snaps onto the high-end ratchet slot of sheath 14; And stretching out sheath 14. lock sliders 10 positions, percussion drill withdraws from impact conditions.
2. after the releasing impact conditions; After pressing knob once more; Push rod 16 promotes sliding pawl cover 17 together to front slide; And, do low-angle unidirectional rotation simultaneously with 15 engagements of the ratchet dish of push rod 16, and under the bounce effect of slide block 10 back-moving springs, snap onto the low side ratchet slot of sheath 14 and retract to sheath 14 inside. lock slider 10 positions.
Above content is merely the preferred embodiment of the utility model; For those of ordinary skill in the art; According to the thought of the utility model, the part that on the specific embodiment and range of application, all can change, this description should not be construed as the restriction to the utility model.
Claims (6)
1. percussion drill; Comprise output shaft (1), impact switching device shifter, high and low speed switching device and speed change switching push button (2); Speed change is switched push button (2) and is connected high and low speed switching device; It is characterized in that: also comprise one with speed change switch push button (2) interlock, when the driving impact switching device shifter switches to impact function, drive speed change and switch push button (2) coordinated type that high and low speed switching device switches to top gear is impacted switching mechanism, coordinated type impacts switching mechanism and connects and impact switching device shifter.
2. percussion drill according to claim 1 is characterized in that: said coordinated type impacts switching mechanism and comprises impact switching push button (3) and locking mechanism, impacts switching push button (3) and connects locking mechanism, and switching device shifter is impacted in the locking mechanism connection.
3. percussion drill according to claim 1; It is characterized in that: said percussion drill is provided with tooth case fore shell (4) and tooth case back cover (5), tooth case back cover (5) are anchored on tooth case fore shell (4); Be provided with travelling gear and speed change gear ring (6) in the cavity of tooth case back cover (5); Speed change gear ring (6) and travelling gear engagement; Speed change is switched the surface that push button (2) is arranged at tooth case back cover (5), and speed change is switched push button (2) and is fixed with a speed change changer lever (7), and speed change changer lever (7) connects speed change gear ring (6).
4. percussion drill according to claim 1; It is characterized in that: said impact switching device shifter comprises ratchet (8), bottom ratchet wheel (9), the slide block (10) by locking mechanism drove, the bearing (13) of going up marketing (11), sour jujube retainer (12) and fixing with tooth case fore shell (4); Last ratchet (8) is fixed in output shaft (1), bottom ratchet wheel (9) and last ratchet (8) engagement, and bottom ratchet wheel (9) outer surface is provided with and projection; Sour jujube retainer (12) is movably arranged on bottom ratchet wheel (9) one sides; Sour jujube retainer (12) inner surface is provided with the corresponding draw-in groove of projection with bottom ratchet wheel (9), and slide block (10) is connected in bearing (13) slidably, and slide block (10) upper end is provided with oblique type groove; The upper end of last marketing is solid to be contacted with sour jujube retainer (12), and the lower end is replaced in oblique type groove.
5. percussion drill according to claim 2; It is characterized in that: said locking mechanism comprises sheath (14), U shaped steel line, back-moving spring, stretches out tooth case fore shell (4) outer push rod (16) and ratchet dish (15), and bearing offers trepanning on (13), and sheath (14) is located in the trepanning; Sheath (14) outside both wings offer through hole; Sheath (14) inboard is provided with the two-layer ratchet slot of height, and ratchet dish (15) is arranged at push rod (16) rear end, and push rod (16) is located in the sheath (14); Push rod (16) outside is provided with six projections; Sliding pawl cover (17) front end is replaced with slide block (10) mutually, and the rear end of sliding pawl cover (17) is provided with cylinder (18), and the rear end of push rod (16) is resisted against impacts switching push button (3); The cylinder (18) that is sheathed on sliding pawl cover (17) of push rod (16); The outside of sliding pawl cover (17) is provided with three ratchets, and the ratchet dish (15) of push rod (16) is replaced and meshed to three ratchets of sliding pawl cover (17), and push rod (16) endwisely slips in the ratchet slot of sheath (14) when impacting switching push button (3) promotion push rod (16); The ratchet dish (15) of push rod (16) promotes sliding pawl cover (17) push rod (16) that endwisely slips simultaneously and does low-angle unidirectional rotation, and back-moving spring one end is resisted against sheath (14), the other end is resisted against and impacts switching push button (3).
6. percussion drill according to claim 2; It is characterized in that: the both wings of said impact switching push button (3) are respectively equipped with the baffle plate (19) that stretches out to a side; Plate washer offers skewed slot (20); The front end both sides that speed change is switched push button (2) are respectively arranged with the sword sheet (21) that stretches out to a side, and sword sheet (21) is replaced in the skewed slot (20) at plate washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203721564U CN202278563U (en) | 2011-10-08 | 2011-10-08 | Impact drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203721564U CN202278563U (en) | 2011-10-08 | 2011-10-08 | Impact drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202278563U true CN202278563U (en) | 2012-06-20 |
Family
ID=46224746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203721564U Expired - Fee Related CN202278563U (en) | 2011-10-08 | 2011-10-08 | Impact drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202278563U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104889942A (en) * | 2015-05-04 | 2015-09-09 | 浙江亚特电器有限公司 | Function switchover device and multifunctional electric drill |
| CN106078622A (en) * | 2016-08-17 | 2016-11-09 | 张家港市创基机械设备制造有限公司 | Beater mechanism in electric impact drill |
| CN112008663A (en) * | 2020-09-04 | 2020-12-01 | 昆山高晟精密机电有限公司 | Mode switching mechanism for electric tool gear box |
| CN112936191A (en) * | 2019-12-10 | 2021-06-11 | 苏州宝时得电动工具有限公司 | Hand-held power tool |
-
2011
- 2011-10-08 CN CN2011203721564U patent/CN202278563U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104889942A (en) * | 2015-05-04 | 2015-09-09 | 浙江亚特电器有限公司 | Function switchover device and multifunctional electric drill |
| CN104889942B (en) * | 2015-05-04 | 2017-01-11 | 浙江亚特电器有限公司 | Function switchover device and multifunctional electric drill |
| CN106078622A (en) * | 2016-08-17 | 2016-11-09 | 张家港市创基机械设备制造有限公司 | Beater mechanism in electric impact drill |
| CN112936191A (en) * | 2019-12-10 | 2021-06-11 | 苏州宝时得电动工具有限公司 | Hand-held power tool |
| CN112008663A (en) * | 2020-09-04 | 2020-12-01 | 昆山高晟精密机电有限公司 | Mode switching mechanism for electric tool gear box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120620 Termination date: 20201008 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |