CN204954717U - Screwdriver that tool bit can alternate - Google Patents

Screwdriver that tool bit can alternate Download PDF

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Publication number
CN204954717U
CN204954717U CN201520423458.8U CN201520423458U CN204954717U CN 204954717 U CN204954717 U CN 204954717U CN 201520423458 U CN201520423458 U CN 201520423458U CN 204954717 U CN204954717 U CN 204954717U
Authority
CN
China
Prior art keywords
cutter head
tool bit
screwdriver
model
screw thread
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
Application number
CN201520423458.8U
Other languages
Chinese (zh)
Inventor
黄靖
Original Assignee
黄靖
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 黄靖 filed Critical 黄靖
Priority to CN201520423458.8U priority Critical patent/CN204954717U/en
Application granted granted Critical
Publication of CN204954717U publication Critical patent/CN204954717U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a screwdriver that tool bit can alternate, includes handle and cutter arbor, the cutter arbor end is equipped with a fixed tool bit, the overhead external screw thread that is equipped with of dead knife, fixed tool bit lower extreme is equipped with at least three movable tool bit, activity tool bit upper end is equipped with the internal thread, and the lower extreme is equipped with the external screw thread, and the activity tool bit divides a style of calligraphy tool bit and cross tool bit, and with the most advanced variation in size of the tool bit of model. The beneficial effects of the utility model are that: through the interior thread connection between the activity tool bit for screwdrivers blade can vary different model and size, realizes a screwdriver and can tighten or unscrew the screw of a plurality of different models and size, also practices thrift the cost when being convenient for move the operation.

Description

The screwdriver that a kind of cutter head can convert
Technical field
The utility model relates to a kind of screwdriver, the screwdriver that especially a kind of cutter head can convert.
Background technology
Screwdriver is a kind of instrument very common during we live, general screwdriver is divided into straight screwdriver and Phillips screwdriver two kinds, and time in actual use, often need to use different screwdrivers, at least two screwdrivers must be needed like that, and when screw size changes, the screwdriver of different large ting model also may be needed.
And if use the master worker of screwdriver to need mobile operating, carrying multiple screwdriver is like that inconvenient certainly, so need a kind of screwdriver by two types to combine, and can the screwdriver of transform size.
Utility model content
Technical problem to be solved in the utility model is to provide the screwdriver that a kind of cutter head can convert, its object is to solve conventional screw-driver in order yi word pattern can not do with cross two kinds of screwdrivers together with and the problem that causes being not easy to carry, solve simultaneously each screwdriver for screw size fix, can because of sized by improper and limit screwdriver use problem.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: the screwdriver that a kind of cutter head can convert, and comprises handle and knife bar, it is characterized in that: described knife bar end is provided with a fixing cutter head; Described fixing cutter head is provided with external screw thread, and described fixing cutter head lower end is provided with at least three movable cutter heads; Described movable cutter head upper end is provided with internal thread, and lower end is provided with external screw thread, and described movable cutter head divides yi word pattern cutter head and cross cutter head, and the cutter head tip of same model varies in size.
The beneficial effects of the utility model are: connected by the internal and external threads between movable cutter head, make driver bit can convert different models and size, realize the screw that multiple different model and size could be tightened or unscrew to a screwdriver, also cost-saving while being convenient to mobile operating.
Further: described movable cutter head upper end-face edge is provided with boss, and lower edge is provided with groove; Described fixing cutter head is provided with described groove at described external screw thread upper surface platform.
The beneficial effect of above-mentioned further scheme is: by coordinating of boss and groove, up and down cutter head can be fixed, and when using screwdriver work, the screw thread between movable cutter head can not be unscrewed or damage, and too increases the service life of screwdriver.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation
Fig. 2 is the decomposing schematic representation that the utility model fixes between cutter head and movable cutter head
Fig. 3 is this practical New activity cutter head structure schematic diagram
In accompanying drawing, the list of parts representated by each label is as follows:
1, handle, 2, knife bar, 3, fixing cutter head, 4, external screw thread, 5, movable cutter head, 6, internal thread, 7, yi word pattern cutter head, 8, cross cutter head, 9, boss, 10, groove.
Detailed description of the invention
As shown in Figure 1, Figure 2, Figure 3 shows, the screwdriver that a kind of cutter head can convert, comprises handle 1 and knife bar 2, it is characterized in that: described knife bar 2 end is fixedly connected with a fixing cutter head 3; Described fixing cutter head 3 is provided with external screw thread 4, and described fixing cutter head 3 lower end is provided with at least three movable cutter heads 5; Described movable cutter head 5 upper end is provided with internal thread 6, and lower end is provided with external screw thread 4, is connected between every two described movable cutter heads 5 by upper and lower described internal thread 6 with described external screw thread 4; Described movable cutter head 5 points of yi word pattern cutter heads 7 and cross cutter head 8, and the cutter head tip of same model varies in size, the screw making screwdriver run into the different size of same model also can use; Described movable cutter head 5 upper end-face edge is provided with boss 9, and lower edge is provided with groove 10; Described in described fixing cutter head 3, external screw thread 4 upper surface platform is provided with described groove 10; When described boss 9 sticks into after in groove 10 described in a upper cutter head, two cutter heads are fixed, and the screw thread that protection connects can not damage, and the torsion that screwdriver can bear simultaneously also increases.
During use, when running into the screw of a certain model size, the movable blade that can coordinate with this screw changes to screwdriver bottom first watch, when not using, is tightened successively by each movable cutter head, prevents loss.
Embodiment recited above is only be described preferred embodiment of the present utility model, not limits design of the present utility model and scope.Under the prerequisite not departing from the utility model design concept; the various modification that this area ordinary person makes the technical solution of the utility model and improvement; protection domain of the present utility model all should be dropped into; the technology contents of the utility model request protection, all records in detail in the claims.

Claims (1)

1. the cutter head screwdriver that can convert, comprises handle (1) and knife bar (2), it is characterized in that: described knife bar (2) end is provided with a fixing cutter head (3); Described fixing cutter head (3) is provided with external screw thread (4), and described fixing cutter head (3) lower end is provided with at least three movable cutter heads (5); Described movable cutter head upper end is provided with internal thread (6), lower end is provided with external screw thread (4), described movable cutter head (5) point yi word pattern cutter head (7) and cross cutter head (8), and the cutter head tip of same model varies in size, described movable cutter head (5) upper end-face edge is provided with boss (9), and lower edge is provided with groove (10); Described fixing cutter head (3) is provided with described groove (10) at described external screw thread (4) upper surface platform.
CN201520423458.8U 2015-06-18 2015-06-18 Screwdriver that tool bit can alternate Expired - Fee Related CN204954717U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520423458.8U CN204954717U (en) 2015-06-18 2015-06-18 Screwdriver that tool bit can alternate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520423458.8U CN204954717U (en) 2015-06-18 2015-06-18 Screwdriver that tool bit can alternate

Publications (1)

Publication Number Publication Date
CN204954717U true CN204954717U (en) 2016-01-13

Family

ID=55049814

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520423458.8U Expired - Fee Related CN204954717U (en) 2015-06-18 2015-06-18 Screwdriver that tool bit can alternate

Country Status (1)

Country Link
CN (1) CN204954717U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105690309A (en) * 2016-03-11 2016-06-22 无锡建凌电器有限公司 Screwdriver convenient for carrying
CN110026935A (en) * 2019-05-10 2019-07-19 常州信息职业技术学院 A kind of bit rotary screwdriver of visible cutter head

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105690309A (en) * 2016-03-11 2016-06-22 无锡建凌电器有限公司 Screwdriver convenient for carrying
CN110026935A (en) * 2019-05-10 2019-07-19 常州信息职业技术学院 A kind of bit rotary screwdriver of visible cutter head

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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
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160113

Termination date: 20160618