CN211288389U - Countersunk bolt capable of being matched with various tightening tools - Google Patents
Countersunk bolt capable of being matched with various tightening tools Download PDFInfo
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- CN211288389U CN211288389U CN201922375534.3U CN201922375534U CN211288389U CN 211288389 U CN211288389 U CN 211288389U CN 201922375534 U CN201922375534 U CN 201922375534U CN 211288389 U CN211288389 U CN 211288389U
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Abstract
The utility model discloses a can match countersunk bolt of multiple tightening tool, nut and screw rod including interconnect, the outward flange shape of nut is regular hexagon, and the central point on the outer end surface of nut puts the square heavy groove that is equipped with regular hexagon, and the tank bottom surface in square heavy groove is equipped with two bar heavy grooves of mutually perpendicular crossing, and the part formation arch outside the square heavy groove of outer end of nut just is regular hexagon's annular boss, and the relative both sides of annular boss are equipped with the bar breach respectively, and the bottom of bar breach flushes with the tank bottom in square heavy groove. The utility model discloses satisfied simultaneously and changed the demand that the cooperation was used with interior hexagonal spanner, outer hexagonal spanner, ordinary open-ended spanner, cross change sword and a word, further satisfied with the width be greater than the demand that a word of square heavy groove maximum width changed sword or stereoplasm piece cooperation was used, satisfied on the whole with most conventional instrument of screwing up and have a stereoplasm piece of straight flange to the demand of matcing, greatly improved the convenience in utilization.
Description
Technical Field
The utility model relates to a countersunk bolt that mechanical connection used especially relates to a can match countersunk bolt of multiple tightening tool.
Background
Countersunk head bolts are widely used for mechanical connection, including nuts and screws, which are required to be used in cooperation with tightening tools such as wrenches and screwdrivers to achieve the functions of tightening and loosening. The existing conventional screwing tool mainly comprises a straight screwdriver, a cross screwdriver, an outer hexagonal wrench, an inner hexagonal wrench and a common open-ended wrench, and according to actual needs, the nut of the traditional countersunk head bolt is designed into a regular hexagon shape by an outer hexagon, namely, the outer edge, or a straight groove or a cross groove or an inner hexagonal countersunk groove is arranged on the surface of the outer end of the nut so as to adapt to different screwing tools. Some counter-sunk bolts are designed in different shapes in important application occasions to prevent common people from loosening, and can be matched with special different tightening tools.
For general applications, however, it is desirable for many users to facilitate use with a variety of different tightening tools; but the nut shape design of traditional countersunk head bolt is more single, hardly general in several kinds of conventional tightening tools of word screwdriver, cross screwdriver, outer hexagonal spanner, interior hexagonal spanner and ordinary open-ended spanner, more hardly realizes screwing up and loosen the operation through the stereoplasm piece that finds easily in the life like the sheetmetal, has reduced the convenience that the user used, has in addition corresponding structure in case destroy just can be with the problem of this countersunk head bolt of normal use again.
SUMMERY OF THE UTILITY MODEL
The utility model provides a can match multiple countersunk bolt who screws up instrument solves traditional countersunk bolt and hardly general in a word change sword, cross change sword, outer hexagonal spanner, interior hexagonal spanner and the problem of these several kinds of conventional tightening instrument of ordinary open-ended spanner.
In order to achieve the above object, the utility model adopts the following technical scheme:
a countersunk bolt capable of being matched with various tightening tools comprises a nut and a screw rod which are connected with each other, the outer edge of the nut is in a regular hexagon shape, a square sinking groove is arranged at the central position of the outer end surface of the nut, the groove wall of the square sinking groove is in a regular hexagon shape, the square sinking groove forms an inner hexagonal sinking groove matched with the outer hexagonal wrench, the bottom surface of the square sinking groove is provided with two strip sinking grooves which are mutually vertical and crossed, the two strip sinking grooves form a cross groove matched with a cross screwdriver, each strip sinking groove forms a straight groove matched with a straight screwdriver, the outer end of the nut is positioned outside the square sink groove to form a raised and regular hexagonal annular boss, the opposite sides of annular boss are equipped with the bar breach respectively, the bottom of bar breach with the tank bottom of square heavy groove flushes.
In the structure, the outer edge of the nut is in a regular hexagon shape, so that the requirement of matching with an inner hexagon wrench and a common open end wrench for use is met; the center position of the outer end surface of the nut is provided with the square sinking groove, and the groove wall of the square sinking groove is in a regular hexagon shape, so that the requirement of matching with an outer hexagon wrench for use is met; the bottom surface of the square sinking groove is provided with two strip-shaped sinking grooves which are mutually perpendicular and crossed, so that the requirement of matching with a cross screwdriver and a straight screwdriver for use is met; the bar breach on the annular boss of nut has satisfied the demand that uses with the width is greater than the word change sword or the stereoplasm piece cooperation of square heavy groove maximum width, during the use, can realize the function of rotatory bolt in two bar breaches that lie in same straight line with the word change sword or the stereoplasm piece card simultaneously of big width.
As preferred, in order to make the bar breach satisfy with the demand that more word change sword or stereoplasm piece cooperation of different thickness used, the bar breach includes first bar breach and second bar breach, two are located respectively the relative both sides of annular boss the central axis coincidence of first bar breach, two are located respectively the other relative both sides of annular boss the central axis coincidence of second bar breach, the central axis of first bar breach with the central axis mutually perpendicular of second bar breach, the width of first bar breach is greater than the width of second bar breach.
Preferably, in order to avoid the obvious reduction of the strength of the nut by each sinking groove and each notch, the included angle between the central axis of the first strip-shaped notch and the central axis of the strip-shaped sinking groove and the included angle between the central axis of the second strip-shaped notch and the central axis of the strip-shaped sinking groove are both 30 degrees.
Preferably, in order to avoid that the corresponding strip-shaped sinking groove and the corresponding strip-shaped notch are easily damaged by a tightening tool and cannot be used, the radial cross sections of the strip-shaped sinking groove, the first strip-shaped notch and the second strip-shaped notch are all trapezoidal, and the width of the opening end is smaller than that of the closed end; preferably, the included angle between the two sides of the trapezoid and the long bottom side is 75-85 degrees.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses a put the square heavy groove that sets up regular hexagon for regular hexagon and at the central point on the outer end surface of nut with the outward flange shape design of nut, satisfied with interior hexagonal spanner, the demand that ordinary trompil spanner and outer hexagonal spanner cooperation were used, set up two bar heavy grooves of mutually perpendicular crossing through the tank bottom surface at square heavy groove, satisfied with the cross change sword and the demand that a word changes the sword cooperation to use, through set up the bar breach on the annular boss at the nut, satisfied with the width be greater than the demand that a word change sword or stereoplasm piece cooperation of square heavy groove maximum width used, wholly satisfied with most conventional instrument of screwing up and the stereoplasm piece that has a straight flange to the demand that matches, use convenience has greatly been improved.
Drawings
Fig. 1 is a front view structural diagram of a countersunk head bolt that can be matched with various tightening tools according to the present invention;
fig. 2 is a schematic top view of the countersunk head bolt of the present invention, which can be used with various tightening tools, and the scale of the countersunk head bolt is larger than that of fig. 1;
fig. 3 is a sectional view a-a in fig. 2.
Wherein, the names corresponding to the reference numbers are:
1-nut, 2-first strip-shaped notch, 3-second strip-shaped notch, 4-screw, 5-square sink groove and 6-strip-shaped sink groove.
Detailed Description
The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.
As shown in fig. 1, 2 and 3, a countersunk head bolt which can be matched with various tightening tools comprises a nut 1 and a screw 4 which are connected with each other, the outer edge of the nut 1 is regular hexagon, the center of the outer end surface of the nut 1 is provided with a square sink 5, the groove wall of the square sink 5 is regular hexagon, the square sink 5 forms an inner hexagon sink adapted to an outer hexagon wrench, the groove bottom surface of the square sink 5 is provided with two bar-shaped sinks 6 which are perpendicular to each other, the two bar-shaped sinks 6 form a cross groove adapted to a cross screwdriver, namely, the cross corner of the two bar-shaped sinks 6 is enlarged at the crossing position to adapt to the cross screwdriver, each bar-shaped sink 6 forms a straight groove adapted to the straight screwdriver, the part of the outer end of the nut 1, which is positioned outside the square sink 5, forms a raised and regular hexagon annular boss (not marked in the figure), and strip-shaped notches with bottoms flush with the bottoms of the square sinking grooves 5 are respectively arranged on two opposite sides of the annular boss.
The size of the outer edge of the nut 1, the size of the square sinking groove 5 and the size of the strip sinking groove 6 are determined according to the needs so as to meet the use requirements of users as much as possible; the rotating operation method for tightening and loosening the countersunk head bolt by using each tightening tool is the same as that of the conventional method; under the condition that a conventional tightening tool does not exist, if a user has a hard sheet and the hard sheet has a straight edge, the straight edge of the hard sheet can be simultaneously clamped into two strip-shaped notches on the same straight line, and then the bolt can be rotated to achieve the function of tightening or loosening the bolt.
As shown in fig. 1, fig. 2 and fig. 3, the present invention also discloses one or more of the following preferred structures, which can be selected according to actual needs:
the bar breach includes first bar breach 2 and second bar breach 3, and two are located respectively the central axis coincidence of the first bar breach 2 of the relative both sides of annular boss and with the central axis of countersunk head bolt is alternately, two are located respectively the central axis coincidence of the second bar breach 3 of the other relative both sides of annular boss and with the central axis of countersunk head bolt is alternately, the central axis of first bar breach 2 and the central axis mutually perpendicular of second bar breach 3, and the width of first bar breach 2 is greater than the width of second bar breach 3. The width of the first strip-shaped notch 2 and the width of the second strip-shaped notch 3 are determined according to actual use requirements, so that the requirement of a user on normal rotation of the bolt when only a thicker or thinner tightening tool is used can be met.
The included angle between the central axis of the first strip-shaped notch 2 and the central axis of the strip-shaped sinking groove 6 and the included angle between the central axis of the second strip-shaped notch 3 and the central axis of the strip-shaped sinking groove 6 are both 30 degrees. Thus, the sink grooves and the notches are uniformly distributed on the screw cap 1, the strength of the screw cap 1 is ensured to be less affected,
the radial cross sections of the strip-shaped sinking groove 6, the first strip-shaped notch 2 and the second strip-shaped notch 3 are all trapezoid, the width of the opening end is smaller than that of the closed end, and the included angle between the two side edges of the trapezoid and the long bottom edge is 75-85 degrees. Like this, during the use, the opening end lateral wall contact of the heavy groove or the breach that screw up the instrument at first with corresponding, behind the wearing and tearing of opening end lateral wall, the contact position extends to the closing end gradually, and until contacting with closing end lateral wall at last, normal use number of times is greater than the heavy groove of straight flange and breach far away, has prolonged the life of this countersunk head bolt, has avoided the problem that screw up the instrument and damage corresponding heavy groove of bar and bar breach easily and lead to its unable use.
The above embodiment is only one of the preferred embodiments of the present invention, and should not be used to limit the protection scope of the present invention, but all the insubstantial changes or modifications made in the spirit and the idea of the main design of the present invention, the technical problems solved by the embodiment are still consistent with the present invention, and all should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a can match countersunk bolt of multiple tightening tool, includes interconnect's nut and screw rod, the outward flange shape of nut is regular hexagon, its characterized in that: the central point on the outer end surface of nut puts and is equipped with square heavy groove just the cell wall shape in square heavy groove is regular hexagon and this square heavy groove forms and the interior hexagonal heavy groove of outer hexagonal spanner looks adaptation, the tank bottom surface in square heavy groove is equipped with two bar heavy grooves of mutually perpendicular crossing, two the bar heavy groove forms the cross groove that changes sword looks adaptation with the cross, every the bar is sunk the groove and is formed and is changed a word groove of sword looks adaptation with a word, the outer end of nut is located the part outside the square heavy groove forms protruding and be regular hexagon's annular boss, the relative both sides of annular boss are equipped with the bar breach respectively, the bottom of bar breach with the tank bottom in square heavy groove flushes.
2. The countersunk bolt that can be matched with various tightening tools according to claim 1, wherein: the bar breach includes first bar breach and second bar breach, and two are located respectively the relative both sides of annular boss the central axis coincidence of first bar breach, two are located respectively the other relative both sides of annular boss the central axis coincidence of second bar breach, the central axis of first bar breach with the central axis mutually perpendicular of second bar breach, the width of first bar breach is greater than the width of second bar breach.
3. The countersunk bolt that can be matched with various tightening tools according to claim 2, wherein: the central axis of the first strip-shaped notch and the central axis of the strip-shaped sinking groove form an included angle, and the central axis of the second strip-shaped notch and the central axis of the strip-shaped sinking groove form an included angle of 30 degrees.
4. The countersunk bolt that can be matched with various tightening tools according to claim 2 or 3, wherein: the radial cross sections of the strip-shaped sinking groove, the first strip-shaped notch and the second strip-shaped notch are trapezoidal, and the width of the opening end is smaller than that of the closed end.
5. The countersunk bolt that can be matched with various tightening tools according to claim 4, wherein: the included angle between the two sides of the trapezoid and the long bottom edge is 75-85 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922375534.3U CN211288389U (en) | 2019-12-25 | 2019-12-25 | Countersunk bolt capable of being matched with various tightening tools |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922375534.3U CN211288389U (en) | 2019-12-25 | 2019-12-25 | Countersunk bolt capable of being matched with various tightening tools |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211288389U true CN211288389U (en) | 2020-08-18 |
Family
ID=72026983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922375534.3U Expired - Fee Related CN211288389U (en) | 2019-12-25 | 2019-12-25 | Countersunk bolt capable of being matched with various tightening tools |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211288389U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112145005A (en) * | 2020-09-10 | 2020-12-29 | 湖北天达宇诚科技有限公司 | Two bearing pulley five metals structures of push-and-pull flat-open aluminum alloy door and window fan |
| USD1015859S1 (en) | 2021-12-21 | 2024-02-27 | Hoffman Enclosures, Inc. | Fastener |
-
2019
- 2019-12-25 CN CN201922375534.3U patent/CN211288389U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112145005A (en) * | 2020-09-10 | 2020-12-29 | 湖北天达宇诚科技有限公司 | Two bearing pulley five metals structures of push-and-pull flat-open aluminum alloy door and window fan |
| USD1015859S1 (en) | 2021-12-21 | 2024-02-27 | Hoffman Enclosures, Inc. | Fastener |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200818 Termination date: 20211225 |