CN201338245Y - Push type automatic rotating screwdriver - Google Patents
Push type automatic rotating screwdriver Download PDFInfo
- Publication number
- CN201338245Y CN201338245Y CNU2008202239676U CN200820223967U CN201338245Y CN 201338245 Y CN201338245 Y CN 201338245Y CN U2008202239676 U CNU2008202239676 U CN U2008202239676U CN 200820223967 U CN200820223967 U CN 200820223967U CN 201338245 Y CN201338245 Y CN 201338245Y
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- China
- Prior art keywords
- housing
- loaded
- axle
- bearing
- knife bar
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- Expired - Fee Related
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Abstract
The utility model discloses a push type automatic rotating screwdriver which comprises a screwdriver head, a screwdriver bar and a handle. The screwdriver is characterized in that the handle is a combined type casing, and a transmission device and a screwdriver bar locking device are arranged inside the casing; when in use, the forward rotation and reverse rotation of the screwdriver bar can be realized by pushing the rack of the transmission device to achieve the purpose of tightening or loosening the screw without turning the wrist, thereby bringing great convenience for the user.
Description
Technical field
The utility model relates to a kind of screwdriver.
Background technology
At present, widely used screwdriver, its cutter head, knife bar and handle all are fixedly connected, and when tightening or unclamp screw, the wrist of need continuously overturning is not easy to operation.
The utility model content
The purpose of this utility model is the above-mentioned deficiency at prior art, provides a kind of push type automatic rotary screw cutter, and it need not the wrist of overturning in use, only need carry out push action, brings great convenience to the user.
For achieving the above object, the automatic rotary screw cutter of push type of the present utility model, comprise cutter head, knife bar and handle, it is characterized in that described handle is a combined shell, be provided with transmission device in the housing, transmission device comprises the tooth bar that is loaded in the chute in casing, tooth axle with the tooth bar engagement, one end of tooth axle is connected by the end of one-way driving mechanism with speed change tooth axle, the other end of speed change tooth axle is provided with gear, respectively be provided with a driving cog axle in the both sides of speed change tooth axle, the two ends of driving cog axle are equipped with gear, the wherein gear of a driving cog shaft rear end and idle pulley engagement, the back segment of knife bar is loaded in the housing by bearing, the rear end of knife bar is provided with gear, and the gear of two driving cog axle front ends and the gear mesh of knife bar are answered, and the gear mesh of the gear of speed change tooth axle and idle pulley and another driving cog shaft rear end should; The tooth axle, speed change tooth axle, idle pulley and two driving cog axles all are loaded on separately the bearing, the bearing of tooth axle and speed change tooth axle all is loaded in the detent corresponding in the housing, the bearing of idle pulley and two driving cog axles is loaded in the same bearing block, bearing block is loaded in the positioning runner corresponding in the housing, one end of bearing block is provided with the inclined-plane, on housing sidewall, be provided with and this end corresponding opening of bearing block, one pushing block is housed in this opening, pushing block is provided with the inclined-plane that cooperates with an end of bearing block, connect firmly a grab on the pushing block, grab contacts with push rod on being arranged on pushing block, on inner walls, be provided with the positioning step corresponding, between the bearing block other end and inner walls, be provided with back-moving spring with grab; On tooth bar one end corresponding shell sidewall, be provided with an opening, between the tooth bar other end and inner walls, be provided with back-moving spring;
Above-mentioned one-way driving mechanism comprises several blind holes of being arranged on the tooth shaft end, is successively set on spring and bearing pin in each blind hole, the other end of each bearing pin is loaded in the corresponding groove of speed change tooth shaft end, the end of each bearing pin and the bottom of respective slot are provided with the inclined-plane of cooperation, and the orientation on all inclined-planes is identical;
Operation principle is: by moving forward and backward of pushing block, realize the alternately engagement of gear of gear and idle pulley and another driving cog shaft rear end of speed change tooth axle, in opening, tooth bar is pushed to the inside again, drive the rotation of tooth axle, drive speed change tooth axle, a wherein driving cog axle and knife bar rotation successively by one-way driving mechanism again, when two driving cog axles alternately enter driving-chain, can realize rotating and reverse of knife bar, be used to tighten or unclamp screw;
As further improvement of the utility model, in housing, also be provided with the knife bar locking device, it comprises two perforates of being located on the housing sidewall, be loaded on the push rod in the perforate, connect firmly and be placed in the movable sleeve on the knife bar with push rod, be located at the spring between the step in movable sleeve and the housing, be fixed in the fixed block on the knife bar, be articulated on the housing and be arranged in the crotch of another perforate, the hook of crotch one end hooks the end face of movable sleeve, between the operating side of housing and crotch, be provided with spring, wherein movable set is in the axial slide of housing, fixed block axially is the gap and is provided with being actively set on, fixed block is positioned at a side at hook place, the external diameter of fixed block is less than the internal diameter of movable sleeve, and fixed block and movable sleeve are provided with the axial clamp and the draw-in groove of cooperation; During the operating side of bending hook instantly, hook laterally rotates and separates with movable sleeve, is actively set under the effect of its spring to cooperate with fixed block by clamp and draw-in groove to connect, and this moment, knife bar was in locking state, can't rotate, can solve the not enough problem of torsion under some state;
As further improvement of the utility model, cutter head and knife bar are that the shaft part and the blind hole of regular polygon is connected by cross section, are convenient to change the cutter head of difformity and size; Cutter head and knife bar also can be handled by magnetization, are convenient to assembling;
As further improvement of the utility model, be provided with tail-hood in the housing rear end, the rear portion is provided with tool shelf in housing, and tool shelf is provided with several cutter head jacks; A plurality of cutter heads can be loaded in the cutter head jack, be easy to carry;
In sum, the utility model need not the wrist of overturning in use, only need carry out push action, brings great convenience to the user, and torsion can be guaranteed simultaneously.
Description of drawings
Fig. 1 is the front view of the utility model embodiment.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the B-B cutaway view of Fig. 1.
Fig. 4 is the C-C cutaway view of Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
By Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, the automatic rotary screw cutter of this push type, comprise cutter head 1, knife bar 2 and handle 3, cutter head 1 and knife bar 2 are that orthohexagonal shaft part and blind hole are connected by cross section, described handle 3 is the combined shell that left shell 4, right shell body 5 and tail-hood 6 are formed, and left shell 4 is connected by several screws with right shell body 5; The rear portion is provided with tool shelf 7 in housing, and tool shelf 7 is provided with several cutter head jacks; Be provided with transmission device and knife bar locking device in the housing, transmission device comprises the tooth bar 8 that is loaded in the chute in casing, tooth axle 9 with tooth bar 8 engagements, one end of tooth axle 9 is connected by the end of one-way driving mechanism with speed change tooth axle 10, installation for ease of tooth bar 8, on the inside groove in the middle of its tooth portion is located at, the other end of speed change tooth axle 10 is provided with gear 11, on speed change tooth axle 10, following both sides respectively are provided with a driving cog axle 12 and 13, driving cog axle 12,13 two ends are equipped with gear, wherein go up the gear of driving cog axle 12 rear ends and idle pulley 14 engagements of two symmetric arrangement, the back segment of knife bar 2 is loaded in the housing by bearing, the rear end of knife bar 2 is provided with gear 15, two driving cog axles 12, the gear of 13 front ends is corresponding with the gear 15 of knife bar 2, the gear mesh of the gear 11 of speed change tooth axle 10 and two idle pulleys 14 and underdrive tooth axle 13 rear ends should, described one-way driving mechanism comprises four uniform blind holes 16 that are arranged on tooth axle 9 ends, be successively set on spring 17 and bearing pin 18 in each blind hole 16, the other end of each bearing pin 18 is loaded in the corresponding groove of speed change tooth axle 10 ends, the end of each bearing pin 18 and the bottom of respective slot are provided with the inclined-plane of cooperation, and the orientation on all inclined-planes is identical; Tooth axle 9, speed change tooth axle 10, idle pulley 14 and two driving cog axles 12, on 13 bearings that all are loaded on separately, the bearing of tooth axle 9 and speed change tooth axle 10 all is loaded in the detent corresponding in the housing, idle pulley 14 and two driving cog axles 12,13 bearing is loaded in the same bearing block 19, bearing block 19 is loaded in the positioning runner corresponding in the housing, the upper end of bearing block 19 is provided with the inclined-plane, on housing sidewall, be provided with and bearing block 19 these end corresponding opening 20, one pushing block 21 is housed in this opening 20, pushing block 21 is provided with the inclined-plane that cooperates with bearing block 19 upper ends, connect firmly the grab of making by spring leaf 22 by screw on the pushing block 21, grab 22 contacts with push rod 35 on being arranged on pushing block 21, on inner walls, be provided with the positioning step 4a corresponding, between bearing block 19 lower ends and inner walls, be provided with the back-moving spring 23 of two symmetric arrangement with grab 22; On tooth bar 8 upper end corresponding shell sidewalls, be provided with an opening 24, between tooth bar 8 lower ends and inner walls, be provided with the back-moving spring 25 of two symmetric arrangement;
Described knife bar locking device comprises two perforates of being located on the housing sidewall 26,27, be loaded on down the push rod 28 in the perforate 26, connect firmly and be placed in movable sleeve 29 on the knife bar 2 with push rod 28, be located at the spring 30 between the step in movable sleeve 29 and the housing, be fixed in the fixed block 31 on the knife bar 2, be articulated on the housing and be arranged in the crotch 32 of going up in addition perforate 27, the hook of crotch 32 1 ends hooks the end face of movable sleeve 29, between the operating side of housing and crotch 32, be provided with spring 33, wherein movable sleeve 29 is loaded in the interior axial slide of housing, fixed block 31 axially is being the gap setting with movable sleeve 29, fixed block 31 is positioned at a side at hook place, the external diameter of fixed block 31 is less than the internal diameter of movable sleeve 29, and fixed block 31 and movable sleeve 29 are provided with the axial clamp and the draw-in groove of cooperation;
Operation principle is: push away before pushing block 21, by the inclined-plane pushing block 21 downward impeller-hub bearings 19 that cooperate, driving cog axle 12 and 13 together moves down, grab 22 hooks the positioning step 4a on the inner walls, idle pulley 14 and gear 11 engagements, push tooth bar 8 to the inside this moment in opening 24, then drives tooth axle 9, speed change tooth axle 10, driving cog axle 12, knife bar 2 rotations successively, and this moment, knife bar 2 was for being rotated in the forward; Instantly bar 35 bears down on one, pushing block 21 pushers, grab 22 breaks away from positioning step 4a, bearing block 19 is up under the effect of back-moving spring 23, driving cog axle 12 and 13 1 the same moving, the gear of driving cog axle 13 rear ends and gear 11 engagements, push tooth bar 8 to the inside this moment in opening 24, then drive tooth axle 9, speed change tooth axle 10, driving cog axle 13, knife bar 2 rotations successively, this moment, knife bar 2 was reverse rotation; Above-mentioned two processes can realize tightening or unclamping screw, need not the wrist of overturning, and bring great convenience to the user; In case unclamp tooth bar 8, tooth bar 8 resets under the effect of back-moving spring 25,9 idle running of tooth axle, and speed change tooth axle 10, driving cog axle 13 and knife bar 2 are static;
When the big torsion of needs comes tighten the screws, in the time of can pressing down the operating side of crotch 32, hook laterally rotates and separates with movable sleeve 29, movable sleeve 29 moves after under the effect of its spring 30, cooperate and fixed block 31 connections by clamp and draw-in groove, because movable sleeve 29 is loaded in the interior axial slide of housing, this moment, knife bar 2 was in locking state, can't rotate, can increase the torsion when using; Promote push rod 28 more forward, movable sleeve 29 separates with fixed block 31, and movable sleeve 29 resets, and the hook of crotch 32 1 ends hooks the end face of movable sleeve 29 under the effect of spring 33, and knife bar 2 returns to rotatable state;
During use, the cutter head of a plurality of difformities and size can be loaded in the cutter head jack on the tool shelf 7, be easy to carry, one-way driving mechanism also can use the structure of ratchet, ratchet; Cutter head 1 and knife bar 2 also can be handled by magnetization, are convenient to assembling.
Claims (5)
1. automatic rotary screw cutter of push type, comprise cutter head, knife bar and handle, it is characterized in that described handle is a combined shell, be provided with transmission device in the housing, transmission device comprises the tooth bar that is loaded in the chute in casing, tooth axle with the tooth bar engagement, one end of tooth axle is connected by the end of one-way driving mechanism with speed change tooth axle, the other end of speed change tooth axle is provided with gear, respectively be provided with a driving cog axle in the both sides of speed change tooth axle, the two ends of driving cog axle are equipped with gear, the wherein gear of a driving cog shaft rear end and idle pulley engagement, the back segment of knife bar is loaded in the housing by bearing, the rear end of knife bar is provided with gear, the gear of two driving cog axle front ends and the gear mesh of knife bar are answered, and the gear mesh of the gear of speed change tooth axle and idle pulley and another driving cog shaft rear end should; The tooth axle, speed change tooth axle, idle pulley and two driving cog axles all are loaded on separately the bearing, the bearing of tooth axle and speed change tooth axle all is loaded in the detent corresponding in the housing, the bearing of idle pulley and two driving cog axles is loaded in the same bearing block, bearing block is loaded in the positioning runner corresponding in the housing, one end of bearing block is provided with the inclined-plane, on housing sidewall, be provided with and this end corresponding opening of bearing block, one pushing block is housed in this opening, pushing block is provided with the inclined-plane that cooperates with an end of bearing block, connect firmly a grab on the pushing block, grab contacts with push rod on being arranged on pushing block, on inner walls, be provided with the positioning step corresponding, between the bearing block other end and inner walls, be provided with back-moving spring with grab; On tooth bar one end corresponding shell sidewall, be provided with an opening, between the tooth bar other end and inner walls, be provided with back-moving spring.
2. the automatic rotary screw cutter of push type according to claim 1, it is characterized in that described one-way driving mechanism comprises several blind holes of being arranged on the tooth shaft end, is successively set on spring and bearing pin in each blind hole, the other end of each bearing pin is loaded in the corresponding groove of speed change tooth shaft end, the end of each bearing pin and the bottom of respective slot are provided with the inclined-plane of cooperation, and the orientation on all inclined-planes is identical.
3. the automatic rotary screw cutter of push type according to claim 1 and 2, it is characterized in that in housing, also being provided with the knife bar locking device, it comprises two perforates of being located on the housing sidewall, be loaded on the push rod in the perforate, connect firmly and be placed in the movable sleeve on the knife bar with push rod, be located at the spring between the step in movable sleeve and the housing, be fixed in the fixed block on the knife bar, be articulated on the housing and be arranged in the crotch of another perforate, the hook of crotch one end hooks the end face of movable sleeve, between the operating side of housing and crotch, be provided with spring, wherein movable set is in the axial slide of housing, fixed block axially is the gap and is provided with being actively set on, fixed block is positioned at a side at hook place, the external diameter of fixed block is less than the internal diameter of movable sleeve, and fixed block and movable sleeve are provided with the axial clamp and the draw-in groove of cooperation.
4. the automatic rotary screw cutter of push type according to claim 1 and 2 is characterized in that cutter head and knife bar are that the shaft part and the blind hole of regular polygon is connected by cross section.
5. the automatic rotary screw cutter of push type according to claim 4 is characterized in that being provided with tail-hood in the housing rear end, and the rear portion is provided with tool shelf in housing, and tool shelf is provided with several cutter head jacks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202239676U CN201338245Y (en) | 2008-12-31 | 2008-12-31 | Push type automatic rotating screwdriver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202239676U CN201338245Y (en) | 2008-12-31 | 2008-12-31 | Push type automatic rotating screwdriver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201338245Y true CN201338245Y (en) | 2009-11-04 |
Family
ID=41233781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202239676U Expired - Fee Related CN201338245Y (en) | 2008-12-31 | 2008-12-31 | Push type automatic rotating screwdriver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201338245Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103213090A (en) * | 2013-04-07 | 2013-07-24 | 山东电力集团公司枣庄供电公司 | Mechanical automatic rotating screwdriver |
| CN103753463A (en) * | 2014-01-03 | 2014-04-30 | 河南科技大学 | Grip drive type screwdriver |
| CN104339296A (en) * | 2013-07-24 | 2015-02-11 | 苏州宝时得电动工具有限公司 | Ratchet wheel screwdriver |
| CN107414143A (en) * | 2017-05-22 | 2017-12-01 | 内蒙古工业大学 | A kind of household portable hand drill |
| CN109483458A (en) * | 2017-09-11 | 2019-03-19 | 富泰华工业（深圳）有限公司 | Push type automated tool |
| CN113276597A (en) * | 2021-05-27 | 2021-08-20 | 徐超 | Automobile wheel hub dismounting device |
-
2008
- 2008-12-31 CN CNU2008202239676U patent/CN201338245Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103213090A (en) * | 2013-04-07 | 2013-07-24 | 山东电力集团公司枣庄供电公司 | Mechanical automatic rotating screwdriver |
| CN103213090B (en) * | 2013-04-07 | 2015-08-19 | 国网山东省电力公司枣庄供电公司 | Mechanical type automatic rotating screwdriver |
| CN104339296A (en) * | 2013-07-24 | 2015-02-11 | 苏州宝时得电动工具有限公司 | Ratchet wheel screwdriver |
| CN104339296B (en) * | 2013-07-24 | 2016-04-27 | 苏州宝时得电动工具有限公司 | Ratchet screw driver |
| CN103753463A (en) * | 2014-01-03 | 2014-04-30 | 河南科技大学 | Grip drive type screwdriver |
| CN103753463B (en) * | 2014-01-03 | 2016-05-18 | 河南科技大学 | Hold drive-type screwdriver |
| CN107414143A (en) * | 2017-05-22 | 2017-12-01 | 内蒙古工业大学 | A kind of household portable hand drill |
| CN109483458A (en) * | 2017-09-11 | 2019-03-19 | 富泰华工业（深圳）有限公司 | Push type automated tool |
| CN113276597A (en) * | 2021-05-27 | 2021-08-20 | 徐超 | Automobile wheel hub dismounting device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091104 Termination date: 20111231 |