CN204935506U - A kind of screwdriver - Google Patents
A kind of screwdriver Download PDFInfo
- Publication number
- CN204935506U CN204935506U CN201520715624.1U CN201520715624U CN204935506U CN 204935506 U CN204935506 U CN 204935506U CN 201520715624 U CN201520715624 U CN 201520715624U CN 204935506 U CN204935506 U CN 204935506U
- Authority
- CN
- China
- Prior art keywords
- knife bar
- knife
- handle
- spelling group
- swiveling wheel
- 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.)
- Expired - Fee Related
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Abstract
A kind of screwdriver, belongs to driver technology field.It is characterized in that: described knife bar (2) is rotating is sleeved on handle of a knife (1) inside, and two parts that knife bar (2) is divided into spelling group up and down to connect, knife bar (2) spelling group up and down junction is provided with slip release construction, when suffered by knife bar (2) top, moment of torsion is greater than the resistance limit of slip release construction, the slip release construction of the junction of spelling group up and down drives two parts knife bar (2) to be separated.The utility model is arranged in handle of a knife by rotating for knife bar, and knife bar is divided into two parts of spelling group up and down, namely the size of the moment of the formation that knife bar rotates realizes controlling by the structure of this spelling group up and down, if use normal dynamics, two parts knife bar of spelling group normally connects, do not affect use, to firmly excessive, two parts knife bar of spelling group is separated, and the moment that handle of a knife top applies is just ineffective to the rotation of cutter head, thus effectively prevent because of firmly excessive, damage the problem of secure component.
Description
Technical field
A kind of screwdriver, belongs to driver technology field.
Background technology
Screwdriver a kind ofly to be inserted by screw by the moment that acts on of rotary cutter tip and to be fastened on target object or to unclamp by screw from target object and shift out.Traditional screwdriver carrys out holding screw with the corresponding speed and strength of user's bit rotary screwdriver, when carrying out fastened by screw, the dynamics rotated needs to hold in real time during practical operation, once firmly excessive, just easily cause screw stripped thread, and then damaged screws and the fastening end face of needs thereof, some electronic components on more accurate equipment fastening.
Therefore, one can control to screw dynamics, and in screwing screw process, when reaching the maximum degree of screwing of screw, predictable screwdriver is applicant's technical problem to be solved.
Summary of the invention
Technical problem to be solved in the utility model is: overcome the deficiencies in the prior art, provides a kind of and controls the dynamics that screws, the predictable screwdriver of the maximum degree of screwing of screw.
The utility model solves the technical scheme that its technical problem adopts: this screwdriver, comprise handle of a knife and knife bar, it is characterized in that: described knife bar is rotating is sleeved on handle of a knife inside, and two parts that knife bar is divided into spelling group up and down to connect, knife bar spelling group up and down junction is provided with slip release construction, when moment of torsion suffered by knife bar top is greater than the resistance limit of slip release construction, the slip release construction of the junction of spelling group up and down drives two parts knife bar to be separated.
Knife bar is rotating to be arranged in handle of a knife, and knife bar is divided into two parts of spelling group up and down, namely the size of the moment of the formation that knife bar rotates realizes controlling by the structure of this spelling group up and down, if use normal dynamics, two parts knife bar of spelling group normally connects, do not affect use, when firmly excessive, the ultimate resistance of slip release mechanism is less than the moment of torsion suffered by knife bar top, slip release mechanism spelling group two parts get loose automatically, two parts knife bar is separated, the moment that handle of a knife top applies is just ineffective to the rotation of cutter head, thus effectively prevent because of firmly excessive, damage the problem of secure component.
Described slip release construction is the ratchet of docking, and the end that two sections knife bar connects is equipped with sliding connection block, and the contact end face pressed on ring shape of two sliding connection blocks is provided with the ratchet be meshed.Realized the spelling group of upper and lower two ends knife bar with the end face of ratchet by the two sides that is meshed, structure is simple, easily realizes, and not easily makes a mistake in use procedure.
The below of described slip release construction is provided with dynamics guiding mechanism, described dynamics guiding mechanism comprises elastomer, screwed pipe and swiveling wheel, on knife bar, cover has screwed pipe, screwed pipe is threaded with handle of a knife lower openings, screwed pipe outer end connects the swiveling wheel being arranged on handle of a knife outside, is provided with elastomer between sliding connection block and swiveling wheel upper surface.
The top of described slip release construction is provided with dynamics guiding mechanism, described dynamics guiding mechanism comprises elastomer, screwed pipe and swiveling wheel, annular slotted is provided with in the middle part of handle of a knife, suit swiveling wheel in fluting, swiveling wheel is fixedly connected with the screwed pipe be fixedly set on knife bar, is provided with elastomer between sliding connection block top and swiveling wheel lower surface.
Described elastomer is stage clip.
Compared with prior art, the beneficial effect that the utility model has is:
1, knife bar is rotating is arranged in handle of a knife, and knife bar is divided into two parts of spelling group up and down, namely the size of the moment of the formation that knife bar rotates realizes controlling by the structure of this spelling group up and down, if use normal dynamics, two parts knife bar of spelling group normally connects, do not affect use, to firmly excessive, two parts knife bar of spelling group is separated, and the moment that handle of a knife top applies is just ineffective to the rotation of cutter head, thus effectively prevent because of firmly excessive, damage the problem of secure component.
2, knife bar spelling group up and down junction is provided with slip release construction, slip release construction is the ratchet of docking, and realized the spelling group of upper and lower two ends knife bar with the end face of ratchet by the two sides that is meshed, structure is simple, easy realization, and not easily make a mistake in use procedure.
3, slip release construction both can be arranged on top, also can be arranged on below, installation site and mounting means flexible and changeable, be not limited to a kind of mounting means, application is more flexible, and be applicable to the screwdriver of different size, the scope of application is wider.
Accompanying drawing explanation
Fig. 1 is embodiment 1 screwdriver internal structure front view schematic diagram.
Fig. 2 is the structural representation that embodiment 1 knife bar does not reach the maximum power of screwing.
Fig. 3 is the structural representation of embodiment 1 knife bar when reaching the maximum power of screwing.
Fig. 4 is the structural representation that embodiment 2 knife bar does not reach the maximum power of screwing.
Fig. 5 is the structural representation of embodiment 2 knife bar when reaching the maximum power of screwing.
Wherein, 1, handle of a knife 2, knife bar 3, swiveling wheel 4, sliding connection block 5, cutter head 6, stage clip 7, screwed pipe.
Detailed description of the invention
Fig. 1 ~ 3 are most preferred embodiments of the present utility model, are described further below in conjunction with accompanying drawing 1 ~ 5 pair of the utility model.
Embodiment 1
With reference to accompanying drawing 1 ~ 3: a kind of screwdriver, comprise handle of a knife 1, knife bar 2 and slip release construction, knife bar 2 is rotating is sleeved on handle of a knife 1 inside, and two parts that knife bar 2 is divided into spelling group up and down to connect, knife bar about 2 spelling group junction is provided with slip release construction, when suffered by knife bar 2 top, moment of torsion is greater than the resistance limit of slip release construction, the slip release construction of the junction of spelling group up and down drives two parts knife bar 2 to be separated.Knife bar 2 is rotating is sleeved on handle of a knife 1 inside, and two parts that knife bar 2 is divided into spelling group up and down to connect.
Knife bar about 2 spelling group junction is provided with slip release construction, slip release construction is the ratchet of docking, the end that the two sections of knife bars 2 being divided into spelling group up and down to connect connect is equipped with sliding connection block 4, the contact end face pressed on ring shape of two sliding connection blocks 4 is provided with the ratchet be meshed, and the ratchet on the contact end face of two sliding connection blocks 4 adopts same gradient, ratchet with tooth pitch.
The below of slip release construction is provided with dynamics guiding mechanism, dynamics guiding mechanism comprises elastomer, screwed pipe 7 and swiveling wheel 3, on knife bar 2, cover has screwed pipe 7, screwed pipe 7 outer ring is provided with external screw thread, the external screw thread of screwed pipe 7 is threaded with the internal thread of handle of a knife 1 lower openings inwall, screwed pipe 7 outer end is fixedly connected with and is arranged on handle of a knife 1 outside and the swiveling wheel 3 be sleeved on knife bar 2, elastomer is provided with between sliding connection block 4 and swiveling wheel 3 upper surface, elastomer can be stage clip 6, also can be other compressible elastomeric elements.
Operation principle and the course of work: screwdriver of the present utility model in use, hold handle of a knife 1 and rotate handle of a knife 1, handle of a knife 1 drives knife bar 2 to rotate together, when knife bar 2 turns to the limit dynamics of setting, as shown in Figure 3, there is loosening, slippage in the ratchet of the Contact engagement of two parts knife bar 2 that spelling group up and down connects, avoids, due to firmly excessive, causing the problem of the element damaging fastening end face.The limit dynamics that knife bar 2 rotates realizes by adjustment dynamics guiding mechanism, upper and lower turn swiveling wheel 3, by the position of swiveling wheel 3 turn screwed pipe 7 in handle of a knife 2, change the restoring force being arranged on stage clip 6 between sliding connection block 4 and swiveling wheel 3 upper surface, change the pretightning force that stage clip 6 applies its close a part of knife bar 2.
Embodiment 2
With reference to accompanying drawing 4 ~ 5: the top of slip release construction is provided with dynamics guiding mechanism, described dynamics guiding mechanism comprises elastomer, screwed pipe 7 and swiveling wheel 3, annular slotted is provided with in the middle part of handle of a knife 1, suit swiveling wheel 3 in fluting, swiveling wheel 3 is fixedly connected with the screwed pipe 7 be fixedly set on knife bar 2, is provided with elastomer between sliding connection block 4 top and swiveling wheel 3 lower surface.Like this when knife bar 2 reaches the maximum power of screwing, cutter head 5 is not given prominence to, and knife bar 2 upper part projects upwards, and other settings are identical with embodiment 1 with operation principle.
The above, it is only preferred embodiment of the present utility model, be not restriction the utility model being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the Equivalent embodiments of equivalent variations.But everyly do not depart from technical solutions of the utility model content, any simple modification, equivalent variations and the remodeling done above embodiment according to technical spirit of the present utility model, still belong to the protection domain of technical solutions of the utility model.
Claims (5)
1. a screwdriver, comprise handle of a knife (1) and knife bar (2), it is characterized in that: described knife bar (2) is rotating is sleeved on handle of a knife (1) inside, and two parts that knife bar (2) is divided into spelling group up and down to connect, knife bar (2) spelling group up and down junction is provided with slip release construction, when suffered by knife bar (2) top, moment of torsion is greater than the resistance limit of slip release construction, the slip release construction of the junction of spelling group up and down drives two parts knife bar (2) to be separated.
2. a kind of screwdriver according to claim 1, it is characterized in that: described slip release construction is the ratchet of docking, the end that two sections knife bar (2) connects is equipped with sliding connection block (4), and the contact end face pressed on ring shape of two sliding connection blocks (4) is provided with the ratchet be meshed.
3. a kind of screwdriver according to claim 2, it is characterized in that: the below of described slip release construction is provided with dynamics guiding mechanism, described dynamics guiding mechanism comprises elastomer, screwed pipe (7) and swiveling wheel (3), the upper cover of knife bar (2) has screwed pipe (7), screwed pipe (7) is threaded with handle of a knife (1) lower openings, screwed pipe (7) outer end connects the swiveling wheel (3) being arranged on handle of a knife (1) outside, is provided with elastomer between sliding connection block (4) and swiveling wheel (3) upper surface.
4. a kind of screwdriver according to claim 2, it is characterized in that: the top of described slip release construction is provided with dynamics guiding mechanism, described dynamics guiding mechanism comprises elastomer, screwed pipe (7) and swiveling wheel (3), handle of a knife (1) top is provided with annular slotted, suit swiveling wheel (3) in fluting, swiveling wheel (3) is fixedly connected with the screwed pipe (7) be fixedly set on knife bar (2), is provided with elastomer between sliding connection block (4) top and swiveling wheel (3) lower surface.
5. a kind of screwdriver according to claim 3 or 4, is characterized in that: described elastomer is stage clip (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520715624.1U CN204935506U (en) | 2015-09-16 | 2015-09-16 | A kind of screwdriver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520715624.1U CN204935506U (en) | 2015-09-16 | 2015-09-16 | A kind of screwdriver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204935506U true CN204935506U (en) | 2016-01-06 |
Family
ID=55002961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520715624.1U Expired - Fee Related CN204935506U (en) | 2015-09-16 | 2015-09-16 | A kind of screwdriver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204935506U (en) |
-
2015
- 2015-09-16 CN CN201520715624.1U patent/CN204935506U/en not_active Expired - Fee Related
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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: 20160106 Termination date: 20160916 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |