CN104760018A - Efficient screw driver based on worm and gear device - Google Patents
Efficient screw driver based on worm and gear device Download PDFInfo
- Publication number
- CN104760018A CN104760018A CN201510164727.8A CN201510164727A CN104760018A CN 104760018 A CN104760018 A CN 104760018A CN 201510164727 A CN201510164727 A CN 201510164727A CN 104760018 A CN104760018 A CN 104760018A
- Authority
- CN
- China
- Prior art keywords
- worm
- gear
- screw driver
- screwdriver
- knife bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B17/00—Hand-driven gear-operated wrenches or screwdrivers
Abstract
The invention relates to an efficient screw driver based on a worm and gear device. A screw driver handle is arranged on the screw driver; a screw driver toolbar is installed in the screw driver handle; a worm is arranged at the middle end of the screw driver toolbar; a gear is arranged above the worm; the gear and the worm are in meshed transmission connection; a meshing device for screwing up and unscrewing screws is arranged at the front end of the screw driver toolbar; the meshing device is composed of an internal gear, an external gear shrink-ring and a shifting plate; the internal gear is arranged on the screw driver toolbar; the external gear shrink-ring is arranged inside a bracket and is connected with the internal gear in a matching manner. According to the screw driver, the worm and gear device has the characteristic of big transmission ratio, the gear only needs to rotate for a smaller angle and the worm can rotate for many circles, thus working efficiency is improved; the screw driver has no limits the usage environment and is simple to operate and convenient to use.
Description
Technical field
The present invention relates to a kind of screwdriver, particularly a kind of worm gear drives the screwdriver of worm screw mode transmission.
Background technology
Screwdriver is simple, the broad-spectrum mechanical workpieces of a kind of structure.It is a kind of instrument fixed by screw by the mode rotated, taken out, and its mode of operation is " with the rotation of the rotating band moving knife bar of wrist, and then screwed in by screw or screw out ".
Mainly there are two kinds of screwdrivers on the market at present: a kind of is common staight shank screwdriver, this screwdriver structure is simple, and structural strength is very large, but its shortcoming is the restriction by wrist rotation angle, its rotary speed is slow and poor stability, efficiency are low, the idle work consumed during work is high, and operability is relative with security poor; Another kind of screwdriver is electric screw driver, be characterized in that efficiency is very high, but shortcoming is that volume is very much not portable, and noise is comparatively large, higher to power supply dependence, and price costly, is not suitable for general family and some special occasions.
Summary of the invention
The present invention is the above-mentioned technical problem that will solve, and provides a kind of efficient screwdriver based on worm gear device, by simple machine driving, realizes changing seesawing of finger the left-right rotation of knife bar into.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of efficient screwdriver based on worm gear device, there is a screw driver handle, described screw driver handle is built with screwdriver knife bar, described screwdriver knife bar middle-end is provided with worm screw, worm gear is provided with above worm screw, worm gear and worm engaging are in transmission connection, described screwdriver knife bar front end is provided with for being tightened, unscrew the geared assembly of screw, geared assembly is made up of internal gear and the external gear collar and plectrum, described internal gear is arranged on described screwdriver knife bar, the external gear collar is placed in support, and be connected with internal gear.
Described screwdriver knife bar is equipped with the sleeve can installing multi-knife-head foremost.Described worm gear is connected by support with handle, and worm gear is placed in support.
During for the locking of screwdriver knife bar force or release bolt, the described external gear collar and internal gear are connected with a joggle.During for screwdriver knife bar swivel bolt, the described external gear collar and internal gear are in released state.
The invention has the beneficial effects as follows: efficient screwdriver of the present invention, under the effect of worm gear device, can realize being become by the translate linear motion of the fore-and-aft direction of finger the left and right directions of knife bar to rotate, realize the spinning in and out of screw.The larger torsion that the object of design geared assembly produces when being and meeting screw means and unscrew.
Screwdriver of the present invention passes through the large feature of worm gear device gearratio, and worm gear only need rotate less angle, and worm screw and rotatable more circle, improve operating efficiency, and do not limit environment for use, simple to operate, easy to use.
Accompanying drawing explanation
Fig. 1 is structure sectional view of the present invention;
Fig. 2 is the part sectioned view along C-C in Fig. 1;
Fig. 3 is the part sectioned view along B-B in Fig. 1.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described:
As shown in Figure 1 to Figure 3, a kind of efficient screwdriver based on worm gear device, comprises screw driver handle 1, screwdriver knife bar 2, worm gear portion 3, worm section 4, the external gear collar and plectrum 5, can install the sleeve 6 of multi-knife-head, support 8 etc.
Screwdriver knife bar 2 middle-end is provided with worm screw 4, worm gear 3 is provided with above worm screw 4, worm gear 3 and worm screw 4 are connected by meshing transmission, screwdriver knife bar 2 front end is provided with the geared assembly for tightening, unscrewing screw, geared assembly is made up of internal gear 7 and the external gear collar and plectrum 5, internal gear 7 is arranged on screwdriver knife bar 2, and the external gear collar and plectrum 5 are placed in support 8, and are connected with internal gear 7.
At screwdriver knife bar 2 is the sleeve can installing multi-knife-head foremost, and the outside of device is the screw driver handle 1 for fixing each parts.Worm screw 2 is connected and fixed by handle front portion and support 8 with handle 1, and worm gear 3 and handle 1 are connected and fixed by support 8, as shown in Figure 3.
By regulating the external gear collar and plectrum 5 front and back position to decide mode of operation in practical operation: when the external gear collar and plectrum 5 are allocated to rear end, by with internal gear 7 engage stuck screwdriver knife bar 2, this mode of operation is identical with traditional operation mode, for the situation that firmly demand is larger; When the external gear collar and plectrum 5 are allocated to front end, inside and outside gear is separated, and screwdriver knife bar 2 is rotatable, i.e. semiautomatic-mode, and promote worm gear 3 and screwdriver knife bar 2 can be driven to operate, this mode of operation is applicable to the situation that screw has loosened.
Use when screw unscrews and only need rotate worm gear 3, rotate forward, screwdriver knife bar 2 dextrorotation; Rotate backward, screwdriver knife bar 2 is left-handed.Back-out and the precession of screw can be determined according to actual conditions.Because worm and gear has the feature of big speed ratio, so only worm gear need be promoted less angle when using, worm screw and the rotatable more number of turns, improve service efficiency greatly, and be convenient to one-handed performance, its applicability is strengthened.
The present invention utilizes the transmission of worm and gear to realize the machine driving of alternating axis, primary structure is be worm screw in the middle part of knife bar, the worm gear matched with it is equipped with in top, and there is the gear for being meshed inside and outside stuck worm screw front end, and the termination of knife bar goes out the edge of a knife for installing multi-knife-head.Screwdriver shell there is the gear matched with geared assembly, and for the structure of fixing worm gear, knife bar.
Consider that common worm and gear has revesal self-locking character, therefore this device redesigns worm and gear parameter, and in certain lead angle angle, it can meet project demands.
Claims (5)
1. the efficient screwdriver based on worm gear device, there is a screw driver handle (1), described screw driver handle (1) is built with screwdriver knife bar (2), it is characterized in that: described screwdriver knife bar (2) middle-end is provided with worm screw (4), worm screw (4) top is provided with worm gear (3), worm gear (3) and worm screw (4) are connected by meshing transmission, described screwdriver knife bar (2) front end is provided with for being tightened, unscrew the geared assembly of screw, geared assembly is made up of internal gear (7) and the external gear collar and plectrum (5), described internal gear (7) is arranged on described screwdriver knife bar (2), the external gear collar and plectrum (5) are placed in support (8), and be connected with internal gear (7).
2. the efficient screwdriver based on worm gear device according to claim 1, is characterized in that: described screwdriver knife bar (2) is equipped with the sleeve (6) can installing multi-knife-head foremost.
3. the efficient screwdriver based on worm gear device according to claim 1, it is characterized in that: described worm gear (3) is connected by support (8) with handle (1), worm gear (3) is placed in support (8).
4. the efficient screwdriver based on worm gear device according to claim 1, is characterized in that: during for the locking of screwdriver knife bar (2) force or release bolt, the described external gear collar and plectrum (5) are connected with a joggle with internal gear (7).
5. the efficient screwdriver based on worm gear device according to claim 1, is characterized in that: during for screwdriver knife bar (2) swivel bolt, and the described external gear collar and plectrum (5) are in released state with internal gear (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510164727.8A CN104760018A (en) | 2015-04-09 | 2015-04-09 | Efficient screw driver based on worm and gear device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510164727.8A CN104760018A (en) | 2015-04-09 | 2015-04-09 | Efficient screw driver based on worm and gear device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104760018A true CN104760018A (en) | 2015-07-08 |
Family
ID=53642281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510164727.8A Pending CN104760018A (en) | 2015-04-09 | 2015-04-09 | Efficient screw driver based on worm and gear device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104760018A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105234894A (en) * | 2015-10-23 | 2016-01-13 | 湖州佳宁印刷有限公司 | Demounting device for printing machine |
| TWI579113B (en) * | 2016-04-07 | 2017-04-21 | Hand tool structure and its making method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1579818A (en) * | 1924-09-19 | 1926-04-06 | Henrique C Kennedy | Combination tool |
| DE2412376A1 (en) * | 1974-03-15 | 1975-09-25 | Albrecht Peter Joerg | Automatic angled screw driver - has drive head normal to shaft applying torque via worm assembly |
| DE3022675A1 (en) * | 1979-11-19 | 1981-05-27 | Rolf Holderbank Eichenberger | SCREWDRIVER FOR TIGHTENING SCREWS UNDER AN ANGLE TO ITS LONG AXIS |
| CN2614854Y (en) * | 2003-03-21 | 2004-05-12 | 陈章英 | Improved screwdriver |
| CN2860759Y (en) * | 2005-12-21 | 2007-01-24 | 国营风华机器厂 | Multifunctional taping attachment |
| US20080135271A1 (en) * | 2006-12-12 | 2008-06-12 | Robert Murphy | Right angle driving tool |
| CN204585085U (en) * | 2015-04-09 | 2015-08-26 | 上海理工大学 | Efficient screwdriver |
-
2015
- 2015-04-09 CN CN201510164727.8A patent/CN104760018A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1579818A (en) * | 1924-09-19 | 1926-04-06 | Henrique C Kennedy | Combination tool |
| DE2412376A1 (en) * | 1974-03-15 | 1975-09-25 | Albrecht Peter Joerg | Automatic angled screw driver - has drive head normal to shaft applying torque via worm assembly |
| DE3022675A1 (en) * | 1979-11-19 | 1981-05-27 | Rolf Holderbank Eichenberger | SCREWDRIVER FOR TIGHTENING SCREWS UNDER AN ANGLE TO ITS LONG AXIS |
| CN2614854Y (en) * | 2003-03-21 | 2004-05-12 | 陈章英 | Improved screwdriver |
| CN2860759Y (en) * | 2005-12-21 | 2007-01-24 | 国营风华机器厂 | Multifunctional taping attachment |
| US20080135271A1 (en) * | 2006-12-12 | 2008-06-12 | Robert Murphy | Right angle driving tool |
| CN204585085U (en) * | 2015-04-09 | 2015-08-26 | 上海理工大学 | Efficient screwdriver |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105234894A (en) * | 2015-10-23 | 2016-01-13 | 湖州佳宁印刷有限公司 | Demounting device for printing machine |
| TWI579113B (en) * | 2016-04-07 | 2017-04-21 | Hand tool structure and its making method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150708 |