CN108044552B - Inner hexagonal wrench and wrench set - Google Patents
Inner hexagonal wrench and wrench set Download PDFInfo
- Publication number
- CN108044552B CN108044552B CN201810061351.1A CN201810061351A CN108044552B CN 108044552 B CN108044552 B CN 108044552B CN 201810061351 A CN201810061351 A CN 201810061351A CN 108044552 B CN108044552 B CN 108044552B
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- 230000005540 biological transmission Effects 0.000 claims abstract description 82
- 230000000694 effects Effects 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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
- B25B13/00—Spanners; Wrenches
- B25B13/48—Spanners; Wrenches for special purposes
- B25B13/50—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes
- B25B13/52—Chain or strap wrenches
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The invention relates to the field of hardware tools, in particular to an inner hexagonal wrench and wrench kit, which comprises a torque transmission wrench and a wrench movable head, wherein the wrench movable head comprises a shell, a transmission piece and a plurality of screw ejector pins, the shell is provided with a plurality of sliding rails which are in sliding fit with the screw ejector pins, the screw ejector pins comprise sliding parts and driving parts, the driving parts of the screw ejector pins are protruded out of the shell and jointly form a driving structure which is matched with a hexagonal groove of an inner hexagonal screw so as to screw the inner hexagonal screw, and when the screw ejector pins slide along the sliding rails, the driving structure which is jointly formed by the driving ends can be suitable for the inner hexagonal screws with different specifications. The socket head cap screws of different specifications can be screwed, and the socket head cap screws have the advantages of being small in size, simple in structure, convenient to carry and low in failure rate.
Description
Technical Field
The invention relates to the technical field of hardware tools, in particular to an internal hexagonal wrench and a wrench set.
Background
The inner hexagon screw is round outside the screw head, concave hexagon in the middle, and is widely used in industrial and mining enterprises and equipment maintenance. The hexagonal wrench is a common hardware tool for tightening and disassembling the socket head cap screw.
At present, the socket head wrench is a curved bar with a regular hexagon cross section and bent into a right angle, the curved bar is divided into a long handle section and a short handle section, one end of the long handle section or the short handle section is inserted into a regular hexagon groove of the socket head wrench head when the socket head wrench is screwed or disassembled, and the long handle section or the long handle section rotates for a plurality of circles until the bolt is completely screwed or disassembled. The existing wrenches for fastening the hexagonal bolts are all individual hexagonal prisms, and because the individual wrenches are small in size and more in model number, each model can only operate for one type of hexagon socket head cap screw, so that in practical application, the plurality of hexagon socket head cap screws are not only difficult to store and easy to lose, but also can be specially customized for the wrenches matched with the nonstandard screws, and the working efficiency is low.
Disclosure of Invention
The invention aims to provide an internal hexagonal wrench which can screw internal hexagonal screws with different specifications, has small volume, is convenient to carry and has low failure rate.
Another object of the present invention is to provide a wrench set, which includes the above socket head cap screws with different specifications, and has the advantages of small size, portability and low failure rate.
Embodiments of the present invention are implemented as follows:
the utility model provides an allen wrench, it is including moment transmission spanner and spanner activity head, spanner activity head is including the casing, driving medium and a plurality of screw thimble, the casing is equipped with the many slide rails that slide fit with a plurality of screw thimble, every screw thimble all is including interconnect's sliding part and drive division, the drive division of a plurality of screw thimble all protrudes in the casing and forms the drive structure with allen screw's rotation groove assorted in order to twist the allen screw jointly, when the sliding part of a plurality of screw thimble slides along a plurality of slide rails, the drive structure that a plurality of drive ends formed jointly is applicable to the allen screw of different specification sizes, the driving medium is including the first drive division that is used for driving a plurality of screw thimble pivoted and the second drive division that is connected with moment transmission spanner detachable, first drive division and second drive division interconnect, and second drive division are followed the casing surface protrusion.
In a preferred embodiment of the present invention, the housing is a hollow column structure, and the sliding rail provided on the housing is a bar-shaped sliding groove extending from the axis of the housing to the periphery, and the sliding groove is three or more.
In a preferred embodiment of the present invention, the housing includes a first housing and a second housing that are detachably connected, the sliding groove includes a first sliding groove and a second sliding groove, the first sliding groove is a bar-shaped sliding groove extending from an axis of the first housing to an outer periphery, the first sliding groove is an insertion end of a screw thimble into the housing, a sliding portion of the screw thimble enters the housing from the first sliding groove, and a driving portion of the screw thimble protrudes from the housing and is located outside the first sliding groove; the second spout is the bar spout that extends from the axis of second casing to periphery, and the number and the position of first spout match with the second spout, and the sliding part of screw thimble inserts the casing and is located second spout department.
In a preferred embodiment of the present invention, the plurality of screw pins each include a limiting portion, the limiting portions are connected to one end of the sliding portion of the screw pin away from the driving portion, and the second sliding groove is slidably engaged with the limiting portion.
In a preferred embodiment of the present invention, the first transmission portion is three or more blades that are annularly arranged at intervals, the number of the blades is matched with the number of the sliding rails, and the interval between the plurality of blades is greater than or equal to the width of the sliding rails.
In a preferred embodiment of the present invention, the second transmission portion has a polygonal column structure, the second transmission portion is disposed at the center of the first transmission portion and protrudes from the first transmission member, and the torque transmission wrench is provided with a connection hole matched with the second transmission portion.
In a preferred embodiment of the present invention, the second transmission portion is provided with a fixing portion for clamping the torque transmission wrench, and the fixing portion is in a protruding structure.
In a preferred embodiment of the present invention, the screw ejector pin includes a connecting portion, one end of the connecting portion is connected to an end of the driving portion near the housing, the other end of the connecting portion is connected to an end of the sliding portion near the driving portion, and an outer diameter of the connecting portion gradually increases from the end of the connecting portion near the sliding portion along an axis of the connecting portion toward the end of the connecting portion near the driving portion.
In a preferred embodiment of the present invention, the sliding portion and the driving portion are disposed in parallel, and the connecting portion is perpendicular to the sliding portion and the driving portion.
A wrench set comprises the inner hexagonal wrench.
The embodiment of the invention has the beneficial effects that:
the invention provides an inner hexagonal wrench which comprises a torque transmission wrench and a wrench movable head, wherein the wrench movable head comprises a shell, a transmission part and a plurality of screw ejector pins, the shell is provided with a plurality of sliding rails which are in sliding fit with the screw ejector pins, each screw ejector pin comprises a sliding part and a driving part which are connected with each other, the driving parts of the screw ejector pins are protruded out of the shell and jointly form a driving structure which is matched with a hexagonal groove of an inner hexagonal screw to screw the inner hexagonal screw, when the sliding parts of the screw ejector pins slide along the sliding rails, the driving structure which is jointly formed by a plurality of driving ends can be suitable for the inner hexagonal screws with different specifications, the transmission part comprises a first transmission part for driving the screw ejector pins to rotate and a second transmission part which is detachably connected with the torque transmission wrench, and the first transmission part is mutually connected with the second transmission part and the second transmission part protrudes from the surface of the shell. The socket head cap screws of different specifications can be screwed, the size is small, the carrying is convenient, and the failure rate is low. In addition, the invention also provides a wrench kit which comprises the socket head cap screw which can be screwed aiming at socket head cap screws with different specifications, and the socket head cap screw is small in size, convenient to carry and low in failure rate.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an allen wrench according to a first embodiment of the present invention;
FIG. 2 is a schematic view of a screw spike of the socket wrench of FIG. 1;
fig. 3 is a schematic structural view of three screw pins of the socket wrench according to the first embodiment of the present invention;
fig. 4 is a schematic structural diagram of a screw spike and a driving member of an allen wrench according to a first embodiment of the present invention under a first view angle;
fig. 5 is a schematic structural view of the screw spike and the driving member of fig. 4 under a second view angle.
In the figure: 10-inner hexagonal wrench; 100-torque transmission wrench; 200-a wrench movable head; 210-a housing; 211-sliding rails; 230-a screw thimble; 231-a sliding part; 233-a driving part; 235-drive structure; 237-connection; 239-limit part; 240-driving piece; 241-a first transmission; 243-second transmission.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
First embodiment
Referring to fig. 1, the socket head cap wrench 10 provided in this embodiment includes a torque transmission wrench 100 and a wrench head 200, wherein the wrench head 200 can be adapted to match socket head cap screws of different specifications, and has a light structure and a small volume, thereby avoiding the need of carrying a whole set of socket head cap wrench 10 with different specifications.
Referring to fig. 1 to 3, the wrench head 200 includes a housing 210, a driving member 240, and a plurality of screw pins 230, the housing 210 is provided with a plurality of sliding rails 211 slidably engaged with the plurality of screw pins 230, each screw pin 230 includes a sliding portion 231 and a driving portion 233 that are connected to each other, the driving portions 233 of the plurality of screw pins 230 are protruded from the housing 210 and together form a driving structure 235 that is matched with a hexagonal groove of an socket head cap screw to screw the socket head cap screw, when the plurality of screw pins 230 slide along the plurality of sliding rails 211, the driving structure 235 formed by the driving ends together is applicable to socket head cap screws of different sizes, the driving member 240 includes a first driving portion 241 for driving the plurality of screw pins 230 to rotate and a second driving portion 243 detachably connected to the torque transmission wrench 100, and the first driving portion 241 is connected to the second driving portion 243 protrudes from the surface of the housing 210.
The above-mentioned screw thimble 230 is used for clamping the socket head cap screw, and the driving end of the screw thimble 230 slides through the sliding rail 211 and can be used for clamping socket head cap screws of different specifications, and when using, the operator passes through the rotation moment transmission spanner 100, and the moment transmission spanner 100 rotates the socket head cap screw that the screw thimble 230 was clamped through the driving medium 240.
Further, the housing 210 has a hollow column structure, and the sliding rails 211 provided on the housing 210 are bar-shaped sliding grooves extending from the axis of the housing 210 to the outer periphery, and the number of the sliding grooves is three or more. In this embodiment, the housing 210 is of a hollow cylindrical structure, the outward extension of the sliding rail 211 from the axis of the housing 210 means that the sliding rail 211 is a bar-shaped sliding groove extending from the central position of the housing 210 along the radius of the housing 210 to the outer peripheral side, the number of sliding grooves is greater than or equal to the number of sliding parts 231 of the spiral shell thimble, the number of the sliding parts 231 is equal to the number of driving parts 233 of the spiral shell thimble 230, the driving parts 233 are hexagonal grooves for clamping the hexagon socket head cap screws, and the sliding situation that three or more grooves can be prevented from occurring during rotation can be better clamped so as to screw the hexagon socket head cap screws, so that the number of the sliding grooves is set to be three or more. It should be noted that, in other embodiments, the shape of the housing 210 may be a hollow polygonal column structure or a hollow truncated cone structure, and the number of the sliding grooves may be selectively set between three, four, five and six according to practical needs.
Further, the housing 210 includes a first housing and a second housing that are detachably connected, the sliding groove includes a first sliding groove and a second sliding groove, the first sliding groove is a bar-shaped sliding groove extending from an axis of the first housing to an outer periphery, the first sliding groove is an insertion end of the screw thimble 230 into the housing 210, a sliding portion 231 of the screw thimble 230 enters into the housing 210 from the first sliding groove, specifically, the sliding portion 231 of the screw thimble 230 is connected with a driving portion 233, the sliding portion 231 enters into the housing 210 from the first sliding groove, and the driving portion 233 of the screw thimble 230 protrudes out of the housing 210; the second sliding groove is a bar-shaped sliding groove extending from the axis of the second housing to the periphery, the number and the positions of the first sliding groove are matched with those of the second sliding groove, and the sliding part 231 of the screw thimble 230 is inserted into the housing 210 and is positioned at the second sliding groove.
Further, referring to fig. 2 again, the plurality of screw pins 230 each include a limiting portion 239, the limiting portions 239 are connected to one end of the sliding portion 231 of the screw pin 230 away from the driving portion 233, and the second sliding groove is slidably engaged with the limiting portions 239. The limiting portion 239 is used for fixing the screw thimble 230 on the housing 210, so that the screw thimble 230 can slide on the housing 210 to change the socket head cap 200 to clamp socket head cap screws with different specifications. In this embodiment, the limiting portion 239 is a triangle, and the limiting portion 239 is a structure with an overall or partial outer diameter larger than the sliding portion 231 of the screw ejector pin 230, it should be noted that in other embodiments, the limiting member may be a sphere, a cube, a cuboid, a trapezoid, or the like.
Further, referring to fig. 4 to 5, the driving member 240 includes a first driving portion 241, the first driving portion 241 is provided with three or more blades that are annularly spaced apart, the number of the blades is matched with the number of the sliding rails 211, and the distance between the blades is greater than or equal to the width of the sliding rails 211. The first transmission portion 241 is a driving portion 233 for transmitting power of the torque transmission wrench 100 to the screw pin 230 to drive the screw pin 230 clamping the socket head cap screw, so as to rotate the socket head cap screw.
Further, the driving member 240 includes a second driving portion 243, the second driving portion 243 has a polygonal structure, the second driving portion 243 is disposed at the center of the first driving portion 241 and protrudes from the first driving member 240, and the torque transmission wrench 100 is provided with a connecting hole matching with the second driving portion 243. The second transmission portion 243 is a connecting member for the wrench head 200 and the torque transmission wrench 100, and also serves as a transmission member 240 for transmitting kinetic energy of the torque transmission wrench 100 to the first transmission portion 241 to drive the screw pin 230 to drive the socket head cap screw. The second transmission portion 243 further includes a fixing portion for clamping the torque transmission wrench 100, where the fixing portion has a protruding structure. In this embodiment, the second transmission portion 243 is a quadrangular prism, and the fixing portion on the second transmission portion 243 is a semicircular protruding structure, so that the torque transmission plate is more stable when the wrench movable head 200 is rotated due to the arrangement of the fixing portion, and the force is easier and more convenient.
In this embodiment, the torque transmission wrench 100 has an L-shaped hollow cylindrical structure, and the shape and size of the connecting hole of the torque transmission wrench 100 are matched with those of the second transmission portion 243. The L-shaped torque transmission wrench 100 includes a long rod and a short rod connected to each other, and a free end of the short rod is connected to the second transmission portion 243. It should be noted that, in other embodiments, the torque transmission wrench 100 may be a hollow cylindrical structure, the connecting hole is disposed in the center of the straight barrel, one end of the straight barrel type torque transmission wrench is connected to the second transmission portion 243, and the other end of the straight barrel type torque transmission wrench may be connected to the electric drill, specifically, the electric drill may be inserted into the end of the straight barrel type torque transmission wrench away from the second transmission portion 243, so that kinetic energy of the electric drill is transmitted to the wrench head 200 through the torque transmission wrench to drive the screw.
Further, the screw pin 230 includes a connecting portion 237, one end of the connecting portion 237 is connected to an end of the driving portion 233 near the housing 210, the other end of the connecting portion 237 is connected to an end of the sliding portion 231 near the driving portion 233, and an outer diameter of the connecting portion 237 increases gradually from the end of the connecting portion 237 near the sliding portion 231 toward the end of the connecting portion 237 near the driving portion 233 along an axis of the connecting portion 237. The reason why the outer diameter of the connecting portion 237 of the screw thimble 230 gradually increases at the end near the driving portion 233 is that, during the rotation, the connecting portion 237 of the screw thimble 230 plays a role of supporting the driving portion 233 with the circumferential power received by the sliding portion 231, so that the driving portion 233 holding the socket head cap screw drives the socket head cap screw to rotate, and therefore, the outer diameter increases to enable the stress of the screw thimble 230 to be more stable, and the service life of the screw thimble 230 to be longer.
Further, the sliding portion 231 is disposed parallel to the driving portion 233, and the connecting portion 237 is perpendicular to the sliding portion 231 and the driving portion 233, and it should be noted that the first driving portion 241 of the driving member 240 is located at an end of the connecting portion 237 of the screw ejector pin 230 near the sliding portion 231.
In summary, the present invention provides an allen wrench, which includes a torque transmission wrench and a wrench movable head, wherein the wrench movable head includes a housing, a transmission member and a plurality of screw pins, the housing is provided with a plurality of sliding rails slidably engaged with the plurality of screw pins, each screw pin includes a sliding portion and a driving portion that are connected to each other, the driving portions of the plurality of screw pins protrude from the housing and form a driving structure that is matched with a hexagonal groove of the allen screw to screw the allen screw, when the sliding portions of the plurality of screw pins slide along the plurality of sliding rails, the driving structure formed by the driving ends together is applicable to allen screws of different sizes, the transmission member includes a first transmission portion for driving the plurality of screw pins to rotate and a second transmission portion detachably connected to the torque transmission wrench, and the first transmission portion is connected to the second transmission portion, and the second transmission portion protrudes from the surface of the housing. The socket head cap screws of different specifications can be screwed, the size is small, the carrying is convenient, and the failure rate is low. In addition, the invention also provides a wrench kit which comprises the socket head cap screw which can be screwed aiming at socket head cap screws with different specifications, and the socket head cap screw is small in size, convenient to carry and low in failure rate.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a socket head cap wrench which characterized in that, it includes moment transmission spanner and spanner activity head, spanner activity head is including casing, driving medium and a plurality of screw thimble, the casing be equipped with a plurality of screw thimble sliding fit's a plurality of slide rails, every screw thimble all includes interconnect's sliding part and drive division, a plurality of screw thimble the drive division all bulge in the casing and form with socket head cap screw's hexagonal recess phase-match in order to twist the drive structure of socket head cap screw jointly, when a plurality of screw thimble the sliding part slides along a plurality of slide rail, a plurality of drive structure that drive division jointly formed can be applicable to the socket head cap screw of different specification sizes; the screw thimble comprises a connecting part, one end of the connecting part is connected with one end of the driving part, which is close to the shell, the other end of the connecting part is connected with one end of the sliding part, which is close to the driving part, and the outer diameter of the connecting part is gradually increased from one end of the connecting part, which is close to the sliding part, to one end of the connecting part, which is close to the driving part, along the axis of the connecting part;
the transmission piece comprises a first transmission part and a second transmission part, wherein the first transmission part is used for driving the screw ejector pins to rotate, the second transmission part is detachably connected with the torque transmission spanner, the first transmission part is connected with the second transmission part, the second transmission part protrudes out of the surface of the shell, the first transmission part is three or more than three blades which are annularly arranged at intervals, the number of the blades is matched with that of the sliding rail, and the distance between the blades is larger than or equal to the width of the sliding rail.
2. The allen wrench according to claim 1, wherein the housing is a hollow cylindrical structure, the slide rail provided on the housing is a bar-shaped slide groove extending from the axis of the housing to the outer periphery, and the slide groove is three or more.
3. The socket head wrench as claimed in claim 2, wherein the housing includes a first housing and a second housing detachably connected, the first and second housings include a first runner and a second runner, the first runner is a bar-shaped runner extending from an axis of the first housing to an outer periphery, the first runner is an insertion end of the screw thimble into the housing, the sliding portion of the screw thimble enters the housing from the first runner, and the driving portion of the screw thimble protrudes out of the housing and is located outside the first runner; the second sliding groove is a strip-shaped sliding groove extending from the axis of the second shell to the periphery, the number and the positions of the first sliding grooves are matched with those of the second sliding groove, and the sliding part of the screw thimble is inserted into the shell and is positioned at the second sliding groove.
4. The socket head wrench of claim 3, wherein the plurality of screw pins each include a limiting portion, the limiting portions are connected to ends of the sliding portions of the screw pins, which are far away from the driving portion, and the second sliding grooves are slidably engaged with the limiting portions.
5. The socket head wrench of claim 1, wherein the second transmission portion has a polygonal column structure, the second transmission portion is disposed in the center of the first transmission portion and protrudes from the first transmission member, and the torque transmission wrench is provided with a connection hole matched with the second transmission portion.
6. The socket wrench as claimed in claim 5, wherein the second transmission portion is provided with a fixing portion for locking the torque transmission wrench, and the fixing portion has a convex structure.
7. The allen wrench of claim 1, wherein the sliding portion is disposed parallel to the driving portion and the connecting portion is perpendicular to the sliding portion and the driving portion.
8. A wrench set, comprising the socket wrench according to any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810061351.1A CN108044552B (en) | 2018-01-22 | 2018-01-22 | Inner hexagonal wrench and wrench set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810061351.1A CN108044552B (en) | 2018-01-22 | 2018-01-22 | Inner hexagonal wrench and wrench set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108044552A CN108044552A (en) | 2018-05-18 |
| CN108044552B true CN108044552B (en) | 2023-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810061351.1A Active CN108044552B (en) | 2018-01-22 | 2018-01-22 | Inner hexagonal wrench and wrench set |
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| CN (1) | CN108044552B (en) |
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| CN108044552A (en) | 2018-05-18 |
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