CN104647259A - Screwdriver component - Google Patents
Screwdriver component Download PDFInfo
- Publication number
- CN104647259A CN104647259A CN201510010066.3A CN201510010066A CN104647259A CN 104647259 A CN104647259 A CN 104647259A CN 201510010066 A CN201510010066 A CN 201510010066A CN 104647259 A CN104647259 A CN 104647259A
- Authority
- CN
- China
- Prior art keywords
- screw
- hole
- section
- cutter head
- locating part
- 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.)
- Granted
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
- B25B15/00—Screwdrivers
-
- 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
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/02—Arrangements for handling screws or nuts
- B25B23/08—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
- B25B23/10—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means
- B25B23/105—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means the gripping device being an integral part of the driving bit
- B25B23/106—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means the gripping device being an integral part of the driving bit the driving bit being a blade
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
- Harvester Elements (AREA)
Abstract
The invention provides a screwdriver component, which comprises a screwdriver (10) including a tool bit (11) and a cutter bar (12), and further comprises a screw limiting structure including a screw limiting piece (20) and an elastic reset piece (30), wherein the screw limiting piece (20) sleeves the tool bit (11), the screw limiting piece (20) is provided with a screw radial-limiting part, a screw moving gap (21) is defined by the screw radial-limiting part, the screw limiting piece (20) is provided with a screw containing position for enabling the screw radial-limiting part to protrude out of the tool bit (11), and a screw installation state for stretching the tool bit (11) into the screw moving gap (21), and the elastic reset piece (30) applies acting force to the screw limiting piece (20), so that the screw limiting piece (20) is positioned at the screw containing position. The screwdriver component has the advantage of convenience for installation of a screw.
Description
Technical field
The present invention relates to screw mounting technique field, in particular to a kind of screwdriver assembly.
Background technology
In EMUs inside components installation process, for ensureing to be in place, fastening uniform force, securing member is often arranged closeer, and in view of the bridging arrangement reason of built-in fitting, the securing member construction space of partial portion is narrow and small, full dog point socket set fastened tools cannot use, screwdriver need be used to carry out fastening, in fastener cycle, cannot effectively ensure screw to be tightened and screwdriver straight, therefore very easily cause fastening crooked in fastener cycle, meanwhile, because construction space is narrow and small, artificial effectively fixing screw to be tightened during fastening beginning, cannot be leaned on.
The securing member that current EMUs use mainly divides two kinds: stainless steel-like and Dacroment class, for stainless steel-like screw, driver bit magnetic is to its nothing effect, and Dacroment class securing member also cannot rely on cutter head magnetic to ensure in fastener cycle completely, and screw does not drop completely, to sum up, in existing car work progress, easily occur that screw to be tightened to be fallen between EMUs guest room in wallboard, if the screw fallen into does not take out, vehicle will produce different sound owing to vibrating in operation process, affect passenger's riding comfort, directly reduce the customer evaluation of product.If the screw dropped need be taken out, then large area is needed to remove the built-in fittings such as EMUs guest room wallboard.
In sum, the installation of current screw is cumbersome and installation effectiveness is lower.
Summary of the invention
The present invention aims to provide a kind of screwdriver assembly being convenient to install screw.
To achieve these goals, the invention provides a kind of screwdriver assembly, comprise: screwdriver, comprise cutter head and knife bar, screwdriver assembly also comprises: screw position limiting structure, comprise screw locating part and elastic reset part, screw locating part is set on cutter head, screw locating part has the radial limiting section of screw, the radial limiting section of screw surrounds screw mobile space, screw locating part has makes the radial limiting section of screw protrude from the screw accommodated position of cutter head and make cutter head stretch into the screw installment state of screw mobile space, elastic reset part makes screw locating part be in screw accommodated position to the active force that screw locating part applies.
Further, screw locating part has cutter head stopper section, and cutter head has the limited portion of cutter head coordinated with cutter head stopper section, and when screw locating part is in screw accommodated position, cutter head is between cutter head stopper section and screw mobile space.
Further, knife bar is provided with keeper, elastic reset part is between screw locating part and keeper and support respectively on screw locating part and keeper.
Further, elastic reset part is Compress Spring.
Further, screw locating part has limiting through hole through in the radial direction of knife bar, and cutter head is located in limiting through hole, and the hole wall of limiting through hole forms the radial limiting section of screw.
Further, screw locating part has limiting through hole through in the radial direction of knife bar, limiting through hole is shoulder hole, limiting through hole comprises the first hole section, the second hole section and the annular table terrace between the first hole section and the second hole section, the aperture of the first hole section is greater than the aperture of the second hole section, annular table terrace forms cutter head stopper section, and the hole wall of the first hole section forms the radial limiting section of screw.
Further, first hole section comprises the 3rd hole section and the 4th hole section, and the aperture of the 3rd hole section is greater than the aperture of the 4th hole section, and the hole wall of the 3rd hole section forms the radial limiting section of screw, when screw locating part is in screw accommodated position, the limited portion of cutter head is positioned at the 4th hole section.
Further, annular table terrace is frustum face, and on the direction of the second section to the first hole, hole section, the diameter of annular table terrace increases gradually.
Further, keeper comprises: adjustable positioning seat, being arranged on this knife bar in the mode of the axially movement of knife bar; Securing member, has the lockup state be fixed on by adjustable positioning seat on knife bar and the released state allowing the movement on knife bar of adjustable positioning seat.
Further, adjustable positioning seat have wear first of knife bar wear through hole and wear securing member and with first wear that through hole is connected second wear through hole, first axis and second wearing through hole wears the axes normal of through hole, second wears through hole has internal thread, and securing member has the external screw thread with screw-internal thread fit.
Apply technical scheme of the present invention, when screwdriver assembly is not by external force, screw locating part is in screw accommodated position, the screw terminal of screw can be placed in screw mobile space and to coordinate with insert contacts, it is spacing that the radial limiting section of screw carries out radial direction to screw, avoids screw to be separated with cutter head.When installing screw, it is spacing that the radial limiting section of screw carries out radial direction to screw all the time, screw locating part is subject to the active force from the framework for installing screw and is in screw installment state gradually, cutter head stretches into screw mobile space to realize promoting screw and being installed on framework by screw thereupon, and screw locating part can not affect the normal mounting of screw.As the above analysis, screwdriver assembly of the present invention is convenient to install screw.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the schematic front view (screw position limiting structure is sectional view) of the embodiment according to screwdriver assembly of the present invention.
Wherein, the Reference numeral in above-mentioned figure is as follows:
10, screwdriver; 11, cutter head; 12, knife bar; 13, the limited portion of cutter head; 14, keeper; 15, adjustable positioning seat; 16, securing member; 20, screw locating part; 21, screw mobile space; 22, cutter head stopper section; 23, limiting through hole; 24, the first hole section; 25, the second hole section; 26, the 3rd hole section; 27, the 4th hole section; 30, elastic reset part.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
As shown in Figure 1, the screwdriver assembly of the present embodiment comprises screwdriver 10 and screw position limiting structure.Screwdriver 10 comprises cutter head 11 and knife bar 12.Screw position limiting structure comprises screw locating part 20 and elastic reset part 30, screw locating part 20 is set on cutter head 11, screw locating part 20 has the radial limiting section of screw, the radial limiting section of screw surrounds screw mobile space 21, screw locating part 20 has makes the radial limiting section of screw protrude from the screw accommodated position of cutter head 11 and make cutter head 11 stretch into the screw installment state of screw mobile space 21, and the active force that elastic reset part 30 pairs of screw locating parts 20 apply makes screw locating part 20 be in screw accommodated position.Screw mobile space 21 makes screw can by stretching into or shift out screw mobile space 21 along the axis of knife bar 12.
The screwdriver assembly of application the present embodiment, when screwdriver assembly is not by external force, screw locating part 20 is in screw accommodated position, the screw terminal of screw can be placed in screw mobile space 21 and to contact cooperation with cutter head 11, it is spacing that the radial limiting section of screw carries out radial direction to screw, avoids screw to be separated with cutter head 11.When installing screw, it is spacing that the radial limiting section of screw carries out radial direction to screw all the time, screw locating part 20 is subject to the active force from the framework for installing screw and is in screw installment state gradually, cutter head 11 stretches into screw mobile space 21 to realize promoting screw and being installed on framework by screw thereupon, and screw locating part 20 can not affect the normal mounting of screw.As the above analysis, the screwdriver assembly of the present embodiment is convenient to install screw.
As shown in Figure 1, in the present embodiment, screw locating part 20 has cutter head stopper section 22, and cutter head 11 has the limited portion 13 of the cutter head coordinated with cutter head stopper section 22, when screw locating part 20 is in screw accommodated position, cutter head 11 is between cutter head stopper section 22 and screw mobile space 21.Adopt said structure, cutter head 11 can not shift out from screw locating part 20, avoids cutter head 11 to cause the screwdriver assembly of the present embodiment normally to use with being separated of screw locating part 20.The elastic force that accurately need not set elastic reset part 30 can not shift out to make cutter head 11 from screw locating part 20.
As shown in Figure 1, in the present embodiment, knife bar 12 is provided with keeper 14, elastic reset part 30 is between screw locating part 20 and keeper 14 and support respectively on screw locating part 20 and keeper 14.Adopt said structure, without the need to elastic reset part 30 and keeper 14 and screw locating part 20 are had any syndeton, simplify the structure of the screwdriver assembly of the present embodiment.
As shown in Figure 1, in the present embodiment, elastic reset part 30 is Compress Spring.Certainly, as other feasible embodiments, elastic reset part 30 also can be resilient sleeve.
As shown in Figure 1, in the present embodiment, screw locating part 20 has limiting through hole 23 through in the radial direction of knife bar 12, and cutter head 11 is located in limiting through hole 23, and the hole wall of limiting through hole 23 forms the radial limiting section of screw.Certainly, as other feasible embodiments, the radial limiting section of screw can be made up of multiple spaced gear-stopping bar in the circumferential.
As shown in Figure 1, in the present embodiment, screw locating part 20 has limiting through hole 23 through in the radial direction of knife bar 12, limiting through hole 23 is shoulder hole, limiting through hole 23 comprises the first hole section 24, second hole section 25 and the annular table terrace between the first hole section 24 and the second hole section 25, the aperture of the first hole section 24 is greater than the aperture of the second hole section 25, and the hole wall that annular table terrace forms cutter head stopper section 22, first hole section 24 forms the radial limiting section of screw.
As shown in Figure 1, in the present embodiment, first hole section 24 comprises the 3rd hole section 26 and the 4th hole section 27, the aperture of the 3rd hole section 26 is greater than the aperture of the 4th hole section 27, the hole wall of the 3rd hole section 26 forms the radial limiting section of screw, when screw locating part 20 is in screw accommodated position, the limited portion 13 of cutter head is positioned at the 4th hole section 27.
As shown in Figure 1, in the present embodiment, annular table terrace is frustum face, and on the direction of the second hole section 25 to the first hole section 24, the diameter of annular table terrace increases gradually.Adopt said structure, annular table terrace can play guide effect to the limited portion of cutter head 13 and can be more stable the limited portion 13 of backstop cutter head.
As shown in Figure 1, in the present embodiment, keeper 14 comprises adjustable positioning seat 15 and securing member 16.Adjustable positioning seat 15 is can be arranged on this knife bar 12 in the mode of the axially movement of knife bar 12.Securing member 16 has the lockup state be fixed on by adjustable positioning seat 15 on knife bar 12 and the released state allowing the movement on knife bar 12 of adjustable positioning seat 15.Adopt said structure, can the elastic force of adjustable elastic return unit 30.
As shown in Figure 1, in the present embodiment, adjustable positioning seat 15 have wear first of knife bar 12 wear through hole and wear securing member 16 and with first wear that through hole is connected second wear through hole, first axis and second wearing through hole wears the axes normal of through hole, second wears through hole has internal thread, and securing member 16 has the external screw thread with screw-internal thread fit.Keeper 14 can be realized change between lockup state and released state by screwing keeper 14.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a screwdriver assembly, comprising:
Screwdriver (10), comprise cutter head (11) and knife bar (12), it is characterized in that, described screwdriver assembly also comprises:
Screw position limiting structure, comprise screw locating part (20) and elastic reset part (30), described screw locating part (20) is set on described cutter head (11), described screw locating part (20) has the radial limiting section of screw, the radial limiting section of described screw surrounds screw mobile space (21), described screw locating part (20) has makes the radial limiting section of described screw protrude from the screw accommodated position of described cutter head (11) and make described cutter head (11) stretch into the screw installment state of described screw mobile space (21), described elastic reset part (30) makes described screw locating part (20) be in described screw accommodated position to the active force that described screw locating part (20) applies.
2. screwdriver assembly according to claim 1, it is characterized in that, described screw locating part (20) has cutter head stopper section (22), described cutter head (11) has the limited portion of cutter head (13) coordinated with described cutter head stopper section (22), when described screw locating part (20) is in described screw accommodated position, described cutter head (11) is positioned between described cutter head stopper section (22) and described screw mobile space (21).
3. screwdriver assembly according to claim 1, it is characterized in that, described knife bar (12) is provided with keeper (14), described elastic reset part (30) to be positioned between described screw locating part (20) and described keeper (14) and to support respectively on described screw locating part (20) and described keeper (14).
4. screwdriver assembly according to claim 3, is characterized in that, described elastic reset part (30) is Compress Spring.
5. screwdriver assembly according to claim 1, it is characterized in that, described screw locating part (20) has limiting through hole (23) through in the radial direction of described knife bar (12), described cutter head (11) is located in described limiting through hole (23), and the hole wall of described limiting through hole (23) forms the radial limiting section of described screw.
6. screwdriver assembly according to claim 2, it is characterized in that, described screw locating part (20) has limiting through hole (23) through in the radial direction of described knife bar (12), described limiting through hole (23) is shoulder hole, described limiting through hole (23) comprises the first hole section (24), second hole section (25) and the annular table terrace be positioned between described first hole section (24) and described second hole section (25), the aperture of described first hole section (24) is greater than the aperture of described second hole section (25), described annular table terrace forms described cutter head stopper section (22), the hole wall of described first hole section (24) forms the radial limiting section of described screw.
7. screwdriver assembly according to claim 6, it is characterized in that, described first hole section (24) comprises the 3rd hole section (26) and the 4th hole section (27), the aperture of described 3rd hole section (26) is greater than the aperture of described 4th hole section (27), the hole wall of described 3rd hole section (26) forms the radial limiting section of described screw, when described screw locating part (20) is in described screw accommodated position, the limited portion of described cutter head (13) is positioned at described 4th hole section (27).
8. screwdriver assembly according to claim 6, is characterized in that, described annular table terrace is frustum face, and on the direction of described second hole section (25) to described first hole section (24), the diameter of described annular table terrace increases gradually.
9. screwdriver assembly according to claim 1, is characterized in that, described keeper (14) comprising:
Adjustable positioning seat (15), being arranged on this knife bar (12) in the mode of the axially movement of described knife bar (12);
Securing member (16), has the lockup state that described adjustable positioning seat (15) to be fixed on described knife bar (12) and allows described adjustable positioning seat (15) at the released state of the upper movement of described knife bar (12).
10. screwdriver assembly according to claim 9, it is characterized in that, described adjustable positioning seat (15) have wear first of described knife bar (12) wear through hole and wear described securing member (16) and with described first wear that through hole is connected second wear through hole, described first axis and described second wearing through hole wears the axes normal of through hole, described second wears through hole has internal thread, and described securing member (16) has the external screw thread with described screw-internal thread fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510010066.3A CN104647259B (en) | 2015-01-08 | 2015-01-08 | Screw knife assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510010066.3A CN104647259B (en) | 2015-01-08 | 2015-01-08 | Screw knife assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104647259A true CN104647259A (en) | 2015-05-27 |
| CN104647259B CN104647259B (en) | 2017-10-03 |
Family
ID=53239166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510010066.3A Active CN104647259B (en) | 2015-01-08 | 2015-01-08 | Screw knife assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104647259B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2440623Y (en) * | 2000-09-07 | 2001-08-01 | 曾绍谦 | Nail holder for screw driver with elastic extension |
| KR20110085738A (en) * | 2010-01-21 | 2011-07-27 | 주식회사성수프론티어 | Fixture device of driver to lose screw in disassembly of asbestos containing materials |
| CN202412154U (en) * | 2011-12-26 | 2012-09-05 | 中国电子科技集团公司第十四研究所 | Screw positioning device |
| CN103978455A (en) * | 2014-05-26 | 2014-08-13 | 国家电网公司 | Nail-holding magnetic head screwdriver |
-
2015
- 2015-01-08 CN CN201510010066.3A patent/CN104647259B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2440623Y (en) * | 2000-09-07 | 2001-08-01 | 曾绍谦 | Nail holder for screw driver with elastic extension |
| KR20110085738A (en) * | 2010-01-21 | 2011-07-27 | 주식회사성수프론티어 | Fixture device of driver to lose screw in disassembly of asbestos containing materials |
| CN202412154U (en) * | 2011-12-26 | 2012-09-05 | 中国电子科技集团公司第十四研究所 | Screw positioning device |
| CN103978455A (en) * | 2014-05-26 | 2014-08-13 | 国家电网公司 | Nail-holding magnetic head screwdriver |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104647259B (en) | 2017-10-03 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Chengyang District of Shandong city of Qingdao province Jinhong road 266111 No. 88 Applicant after: CRRC QINGDAO SIFANG CO., LTD. Address before: Chengyang District of Shandong city of Qingdao province Jinhong road 266111 No. 88 Applicant before: CSR Qingdao Sifang Locomotive and Rolling Stock Co., Ltd. |
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| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |