CN207971881U - A kind of screw pawl - Google Patents
A kind of screw pawl Download PDFInfo
- Publication number
- CN207971881U CN207971881U CN201820460933.2U CN201820460933U CN207971881U CN 207971881 U CN207971881 U CN 207971881U CN 201820460933 U CN201820460933 U CN 201820460933U CN 207971881 U CN207971881 U CN 207971881U
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- CN
- China
- Prior art keywords
- connector sleeve
- elastic
- screw
- elastic force
- elastic arm
- 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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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model discloses a kind of screw pawls, it include for being socketed in screwdriver knife bar front end and the cylindrical structure of entirety connector sleeve, the front end of connector sleeve extends to form forward the elastic arm of elongate structure, and elastic arm is two or more and the rounded array distribution centered on the axis of connector sleeve；The leading portion of elastic arm is whole to be bent towards close to connector sleeve axis direction and forms the elastic claw being integrally arc-shaped；It is characterized in that, the front end of the elastic claw leading portion is towards far from connector sleeve axis direction, reversely outer front bending tilts and forms elastic force-applying end, when elastic force-applying end front end is bent outwardly inclined direction and makes the elastic force-applying end of gained by along connector sleeve axis direction pressure, it can be formed toward the component far from connector sleeve axis direction in elastic arm roots.The utility model has structure simpler, and application range is wider, and flexibility is stronger, advantage more convenient to use.
Description
Technical field
The utility model is related to hardware tool technical fields；More particularly to a kind of screw pawl.
Background technology
Screwdriver is a kind of tool for twisting screw to force its in place, and usually there are one thin sphenocephalies, can insert
Enter in the line of rabbet joint or recess of screw cap-- Shanxi Henan, Beijing-Tianjin Hebei and Shandong and Shaanxi Northern Shaanxi Dialect be known as " screwdriver ", Jiangxi, Anhui and
The ground such as Hubei, Guanzhong, Shanxi are known as " bottle opener ", and central and west regions are known as " being cut ", and Yangtze River Delta Area is known as " turn screw ".Mainly have
Two kinds of one word (negative sign) and cross (positive sign).Common also has hexagonal screwdriver, including two kinds of interior hexagonal and outer-hexagonal.
In the application of screwdriver, it will usually screw are placed in screwdriver leading head, then simultaneously by screw alignment threaded hole
It tightens to realize the connection between component.But in this process, it because screwdriver is for fixing not to screw, leads
In causing by screw tightening the step of, screw is easy to fall from screwdriver leading head.Therefore, in practical operation, work is needed
Make personnel to be gone to help screw that it is caused not fall from screwdriver front end during assembly manipulation with hand.And in some special feelings
Under condition, when a hand do not have leisure or reach etc. can only singlehanded the turn of the screw the case where, especially since horizontal down
On direction（Straight screwdriver is then all directions）, can not substantially be operated, people, which also come up with, thus allows screw
The magnetic method of cutter head, however it cannot be the iron screw to get rusty easily to need screw in many occasions, even iron spiral shell
Silk is also big to magnetic requirements because its weight is big, but cannot have magnetic field when many times working, in practical applications
The finiteness problem that the permission in just lower and upward direction works with magnetic can only be solved, entire efficiency of assembling cannot be still solved and decline,
Labor intensity increases, also the common problem of waste of manpower.
Chinese patent（CN200820205610.5）A kind of screwdriver of energy capturing screws, including handle, knife bar are disclosed,
It is characterized in that being connected with spring detent on knife bar, movable sleeve is cased on spring detent.Spring detent carries claw, and claw is at least three
It is a.The diameter for the circumference that claw on spring detent is surrounded is more than the diameter of screw terminal.Although the appearance that this screw is grabbed solves
Operation directionality problem, but it is this can the screwdrivers of capturing screws exist, in use, when screw tightening in mounting surface,
Claw is between the medial surface and mounting surface of screw head always so that claw is easy to be mounted face after screw tightening
The problem of clamping, can not taking out claw with the medial surface of screw head causes inconvenient to use.Meanwhile the energy of this structure
The screwdriver of capturing screws can not be applied to electrodynamic type screwdriver, and when in use because of electric screw driver, axial feed velocity is
Prodigious, movable sleeve can not play a role and slide axially well, cause the front end of spring detent to be easy to be jammed, lead to nothing
Method normal use.Secondly, in the case where some screw access aperture hole walls are narrower, spring assembly instead results in driver bit
Cannot can smoothly enter into or be easy to block causes inconvenient or even cannot operate；It all increases the change of screwdriver and spring assembly
The production, maintenance and replacement cost for having added product, prominent design of spring also increases product use on screwdriver rod
The probability of the probability of damage of itself and other articles of damaging in the process, to reduce its application range and service efficiency.
Therefore, how can provide that a kind of structure is simpler, and application range is wider, flexibility is stronger, more convenient
A kind of screw pawl used, becoming those skilled in the art has technical problem to be solved.
Utility model content
In view of the above shortcomings of the prior art, technical problem to be solved in the utility model is：How a kind of knot is provided
Structure is simpler, and application range is wider, and flexibility is stronger, a kind of screw pawl more convenient to use.
In order to solve the above-mentioned technical problem, the utility model uses the following technical solution：
A kind of screw pawl includes for being socketed in screwdriver knife bar front end and the cylindrical structure of entirety connector sleeve,
The front end of connector sleeve extends to form forward the elastic arm of elongate structure, and elastic arm is for two or more and with connector sleeve
Rounded array distribution centered on axis；The leading portion of elastic arm is whole to be bent towards close to connector sleeve axis direction and forms entirety
The elastic claw being arc-shaped；Its feature is, the front end of the elastic claw leading portion towards far from connector sleeve axis direction it is reversed it is outer before
Side's bending, which tilts, simultaneously forms elastic force-applying end, elastic force-applying end front end be bent outwardly inclined direction make the elastic force-applying end of gained by
When along connector sleeve axis direction pressure, it can be formed toward the component far from connector sleeve axis direction in elastic arm roots.
In the technical program, when in use, connector sleeve is sheathed on screwdriver knife bar front end, and the screw that will be assembled is set
In the screwdriver knife bar front end on the inside of elastic arm, elastic arm can circumferentially surround structure to screw-shaped；And elastic claw
Medial surface can be affixed bearing with the circumferential exterior surface of screw head.By screw tightening when the mounting surface, when in screw head
Side at a distance from mounting surface be equal to elastic force-applying end along connector sleeve circumferential width apart from when, elastic force-applying end two sides are respectively
It is abutted with screw head medial surface and mounting surface, as the spacing of screw head medial surface and mounting surface reduces, because elastic force-applying
It is inclined-plane or curved surface to hold two sides so that elastic force-applying end enables to elastic claw towards far from connector sleeve axis direction after stress
It flicks；So that the risk that the medial surface of the mounted face of elastic claw and screw head is clamped after screw tightening reduces.To make
Obtain enhanced convenience when entire screw pawl uses；Efficiency of assembling can be improved, working strength is reduced.
As an optimization, the elastic force-applying end is in integrally the arc-shaped structure more than or equal to quadrant.
In such manner, it is possible to which the end position for reducing elastic force-applying end generates the risk of scraping with mounting surface, protection installation is played
The effect in face, so as to improve assembling quality.And elastic force-applying end, which is integrally arc-shaped structure, to make elasticity apply
Power end can preferably provide so that the elastic force that elastic claw is flicked towards separate connector sleeve axis direction.
As an optimization, the connector sleeve is wound along its length by the plate-like piece of rectangular configuration and both ends are mutually linked simultaneously
Tubular construction component is surrounded to obtain.
In this way, connector sleeve can adapt to the screwdriver knife bar of more diameters so that screw pawl has application range wider, fits
The stronger advantage of answering property.And it is easy for setting up when needed, when not needed, can take off easily, even if being broken
The cost of replacement is also very low so that and entire screw pawl is more flexible and convenient in use, cost is lower.In addition can also
Enough facilitate radially sliding along knife bar after entire screw pawl stress.
As an optimization, the both ends for forming plate-like piece length direction used in connector sleeve are in opposite and interval setting.
In such manner, it is possible to be preferably affixed with the outer circumference surface of knife bar, and provide frictional force；So that connector sleeve is by radial load
When, connector sleeve can preferably be maintained at the upward position of cutter spindle；Convenient elastic claw front end of working as is by along knife bar axial direction side simultaneously
To the general two screws weight of ratio slightly larger active force itself when, connector sleeve can generate sliding along knife bar.
As an optimization, the connector sleeve, elastic arm and elastic claw are integrally formed to obtain.
In such manner, it is possible to connector sleeve, elastic arm and elastic claw is integrally formed by way of punching press, facilitate processing and manufacturing.
As an optimization, the connector sleeve, elastic arm and elastic claw are made by metal material.
In this way, entire screw pawl is more durable, and facilitate manufacture.
As an optimization, the elastic arm is three.
In this way, total is simpler, arrangement is more reasonable.
As an optimization, there is the rounded corner being symmetrical set on the elastic force-applying end thickness direction.
In such manner, it is possible to which reduce elastic force-applying end generates scraping with mounting surface, installation quality is improved.
As an optimization, the forward end position at elastic force-applying end is formed by bending towards close to the inside rear of connector sleeve axis direction
Scratch resistant portion.
In such manner, it is possible to entire screw pawl is facilitated to be taken out from mounting hole after by screw tightening, and towards close to connector sleeve
The forward end position at the elastic force-applying end of the inside rear bending of axis direction will not generate scraping with hole wall, but be in hole wall
The sliding of face contact improves assembling quality to reduce operation difficulty.
As an optimization, the elastic force-applying end distal end is less than the radius of connector sleeve to the distance of connector sleeve axis.
In such manner, it is possible to which reduce elastic force-applying end generates scraping to mounting hole hole wall, installation quality is improved.
Description of the drawings
Fig. 1 is the structural schematic diagram in specific embodiment of the present invention.
Fig. 2 is the structural schematic diagrams of Fig. 1 when in use,（Skid resistant course is not shown in figure）.
Fig. 3 is the enlarged diagram of elastic force side in Fig. 1.
Specific implementation mode
The utility model is described in further detail below in conjunction with the accompanying drawings.
When specific implementation：As shown in Figure 1 to Figure 3, a kind of screw pawl, include for be socketed in screwdriver knife bar front end and
The connector sleeve 1 of whole cylindrical structure, the front end of connector sleeve extends to form forward the elastic arm 2 of elongate structure, elastic arm
The rounded array distribution for two or more and centered on the axis of connector sleeve；The whole direction of the leading portion of elastic arm 2 is leaned on
Nearly connector sleeve axis direction is bent and forms the elastic claw 3 being integrally arc-shaped；The front end of 3 leading portion of the elastic claw is towards far from even
The reversed outer front bending of female connector axis direction tilts and forms elastic force-applying end 4, and elastic force-applying end front end is bent outwardly inclination side
To when making the elastic force-applying end of gained by along connector sleeve axis direction pressure, can be formed toward far from connector sleeve in elastic arm roots
The component of axis direction.
In the technical program, when in use, connector sleeve is sheathed on screwdriver knife bar front end, and the screw that will be assembled is set
In the screwdriver knife bar front end on the inside of elastic arm, elastic arm can circumferentially surround structure to screw-shaped；And elastic claw
Medial surface can be affixed bearing with the circumferential exterior surface of screw head.By screw tightening when the mounting surface, when in screw head
Side at a distance from mounting surface be equal to elastic force-applying end along connector sleeve circumferential width apart from when, elastic force-applying end two sides are respectively
It is abutted with screw head medial surface and mounting surface, as the spacing of screw head medial surface and mounting surface reduces, because elastic force-applying
It is inclined-plane or curved surface to hold two sides so that elastic force-applying end enables to elastic claw towards far from connector sleeve axis direction after stress
It flicks；So that the risk that the medial surface of the mounted face of elastic claw and screw head is clamped after screw tightening reduces.To make
Obtain enhanced convenience when entire screw pawl uses；Efficiency of assembling can be improved, working strength is reduced.
In present embodiment, the elastic force-applying end 4 is whole in arc-shaped more than or equal to quadrant
Structure.
In such manner, it is possible to which the end position for reducing elastic force-applying end generates the risk of scraping with mounting surface, protection installation is played
The effect in face, so as to improve assembling quality.And elastic force-applying end, which is integrally arc-shaped structure, to make elasticity apply
Power end can preferably provide so that the elastic force that elastic claw is flicked towards separate connector sleeve axis direction.
In present embodiment, the connector sleeve 1 is wound along its length by the plate-like piece of rectangular configuration and both ends
It is mutually linked and surrounds tubular construction component and obtain.
In this way, connector sleeve can adapt to the screwdriver knife bar of more diameters so that screw pawl has application range wider, fits
The stronger advantage of answering property.And it is easy for setting up when needed, when not needed, can take off easily, even if being broken
The cost of replacement is also very low so that and entire screw pawl is more flexible and convenient in use, cost is lower.In addition can also
Enough facilitate radially sliding along knife bar after entire screw pawl stress.
In present embodiment, the both ends for forming plate-like piece length direction used in connector sleeve are in opposite and interval is set
It sets.
In such manner, it is possible to be preferably affixed with the outer circumference surface of knife bar, and provide frictional force；So that connector sleeve is by radial load
When, connector sleeve can preferably be maintained at the upward position of cutter spindle；Convenient elastic claw front end of working as is by along knife bar axial direction side simultaneously
To the general two screws weight of ratio slightly larger active force itself when, connector sleeve can generate sliding along knife bar.
In present embodiment, the connector sleeve 1, elastic arm 2 and the integrated molding of elastic claw 3 obtain.
In such manner, it is possible to connector sleeve, elastic arm and elastic claw is integrally formed by way of punching press, facilitate processing and manufacturing.
In present embodiment, the connector sleeve 1, elastic arm 2 and elastic claw 3 are made by metal material.
In this way, entire screw pawl is more durable, and facilitate manufacture.
In present embodiment, the elastic arm 2 is three.
In this way, total is simpler, arrangement is more reasonable.
In present embodiment, there is the rounded corner being symmetrical set on 4 thickness direction of elastic force-applying end.
In such manner, it is possible to which reduce elastic force-applying end generates scraping with mounting surface, installation quality is improved.
In present embodiment, the forward end position at elastic force-applying end 4 is towards after connector sleeve axis direction is inside
Side is formed by bending scratch resistant portion.
In such manner, it is possible to entire screw pawl is facilitated to be taken out from mounting hole after by screw tightening, and towards close to connector sleeve
The forward end position at the elastic force-applying end of the inside rear bending of axis direction will not generate scraping with hole wall, but be in hole wall
The sliding of face contact improves assembling quality to reduce operation difficulty.
In present embodiment, the distance of 4 distal end of elastic force-applying end to connector sleeve axis is less than the half of connector sleeve
Diameter.
In such manner, it is possible to which reduce elastic force-applying end generates scraping to mounting hole hole wall, installation quality is improved.
In present embodiment, skid resistant course 5 made from rubber material are provided on the inner wall of connector sleeve.
In such manner, it is possible to so that when in use, connector sleeve can preferably be arranged on screwdriver knife bar, not by axial force
When, it is not susceptible to slide axially.
In present embodiment, the wall thickness of the connector sleeve 1 is less than or equal to 1mm.
In this way, entire screw pawl radial dimension smaller, can facilitate entire screw pawl to extend into mounting hole and twist screw
Tightly, more convenient to use.
Claims (10)
1. a kind of screw pawl includes for being socketed in screwdriver knife bar front end and the cylindrical structure of entirety connector sleeve（1）,
The front end of connector sleeve extends to form forward the elastic arm of elongate structure（2）, elastic arm is for two or more and with connection
Rounded array distribution centered on the axis of set；Elastic arm（2）Leading portion it is whole towards close to the bending of connector sleeve axis direction simultaneously
Form the elastic claw being integrally arc-shaped（3）；It is characterized in that, the elastic claw（3）The front end of leading portion is towards far from connector sleeve axis
The reversed outer front bending in line direction tilts and forms elastic force-applying end（4）, elastic force-applying end front end, which is bent outwardly inclined direction, to be made
When obtaining the elastic force-applying end of gained by along connector sleeve axis direction pressure, it can be formed toward far from connector sleeve axis in elastic arm roots
The component in direction.
2. a kind of screw pawl as described in claim 1, which is characterized in that the elastic force-applying end（4）Whole is in be more than or wait
In the arc-shaped structure of quadrant.
3. a kind of screw pawl as described in claim 1, which is characterized in that the connector sleeve（1）By the plate-like piece of rectangular configuration
It winds along its length and both ends is mutually linked and surrounds tubular construction component and obtain.
4. a kind of screw pawl as claimed in claim 3, which is characterized in that form two of plate-like piece length direction used in connector sleeve
End is in opposite and interval setting.
5. a kind of screw pawl as described in claim 1, which is characterized in that the connector sleeve（1）, elastic arm（2）And elastic claw
（3）Integrated molding obtains.
6. a kind of screw pawl as described in claim 1, which is characterized in that the connector sleeve（1）, elastic arm（2）And elastic claw
（3）It is made by metal material.
7. a kind of screw pawl as described in claim 1, which is characterized in that the elastic arm（2）It is three.
8. a kind of screw pawl as described in claim 1, which is characterized in that the elastic force-applying end（4）Have on thickness direction
The rounded corner being symmetrical set.
9. a kind of screw pawl as described in claim 1, which is characterized in that elastic force-applying end（4）Forward end position towards leaning on
The nearly inside rear of connector sleeve axis direction is formed by bending scratch resistant portion.
10. a kind of screw pawl as described in claim 1, which is characterized in that the elastic force-applying end（4）Connector sleeve axis is arrived in distal end
The distance of line is less than the radius of connector sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820460933.2U CN207971881U (en) | 2018-03-30 | 2018-03-30 | A kind of screw pawl |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820460933.2U CN207971881U (en) | 2018-03-30 | 2018-03-30 | A kind of screw pawl |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207971881U true CN207971881U (en) | 2018-10-16 |
Family
ID=63763671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820460933.2U Expired - Fee Related CN207971881U (en) | 2018-03-30 | 2018-03-30 | A kind of screw pawl |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207971881U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI781731B (en) * | 2021-08-18 | 2022-10-21 | 劉欽鎮 | Fixing nail with claw extending drive mechanism |
-
2018
- 2018-03-30 CN CN201820460933.2U patent/CN207971881U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI781731B (en) * | 2021-08-18 | 2022-10-21 | 劉欽鎮 | Fixing nail with claw extending drive mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181016 Termination date: 20200330 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |