CN208411213U - A kind of triangular compass - Google Patents
A kind of triangular compass Download PDFInfo
- Publication number
- CN208411213U CN208411213U CN201820397874.9U CN201820397874U CN208411213U CN 208411213 U CN208411213 U CN 208411213U CN 201820397874 U CN201820397874 U CN 201820397874U CN 208411213 U CN208411213 U CN 208411213U
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- CN
- China
- Prior art keywords
- rack gear
- thimble
- shell
- draw runner
- link block
- 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.)
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Abstract
The utility model discloses a kind of triangular compass, including shell, gear shaft, the first stabilizer blade, the second stabilizer blade, paintbrush and draw runner；The first opposite sliding rail of two be through to outside shell and second sliding rail are offered in shell；First stabilizer blade includes the first rack gear, the first link block and the first thimble, and one end of the first rack gear is connect with first link block, and the first thimble is connect with the first link block；Second stabilizer blade includes the second rack gear, the second link block and the second thimble, and the structure of second support is consistent with first support；Gear shaft is rotationally arranged between the first rack gear and the second rack gear, and is engaged with the first rack gear and the second rack gear；Second sliding rail is located at the perpendicular bisector of the first thimble and the second thimble, and draw runner is slidably disposed in the second sliding rail, and paintbrush is set on draw runner；The direction of first thimble, the second thimble and paintbrush is consistent.The utility model has the advantages that mapping step is succinct, easy to use.
Description
Technical field
The utility model relates to drafting instrument field more particularly to a kind of triangular compass.
Background technique
Compasses are people's often commonly used drafting instruments, are typically constructed of metal, the stabilizer blade being articulated and connected including two,
It is mainly used for measuring size, drawing perpendicular bisector, circumference in equal parts etc..
When drawing different lines using compasses, need to realize according to different modes of operation, and need by
Other tools, such as draw certain line segment perpendicular bisector when, need first by two stabilizer blades of compasses respectively with the line segment
Two-end-point alignment, then control two stabilizer blades and be alternately rotated, finally use ruler and paintbrush, cross intersection point and draw perpendicular to the line segment
Straight line obtains perpendicular bisector.Such operating procedure is very cumbersome and complicated.
Utility model content
For this reason, it may be necessary to a kind of triangular compass is provided, it is complicated using step to solve compasses in the prior art, and need to match
Close the problem of other tools complete drawing.
To achieve the above object, a kind of triangular compass, including shell, gear shaft, the first stabilizer blade, second are inventor provided
Foot, paintbrush and draw runner；
Two the first sliding rails and second sliding rail being through to outside shell, two the first sliding rails are offered in the shell
It is oppositely arranged, the second sliding rail is arranged perpendicular to the first sliding rail；
First stabilizer blade includes the first rack gear, the first link block and the first thimble, one end of first rack gear and institute
The connection of the first link block is stated, first thimble is connect with the first link block；
Second stabilizer blade includes the second rack gear, the second link block and the second thimble, one end of second rack gear and institute
The connection of the second link block is stated, second thimble is connect with the second link block；
First rack gear and second rack gear are slideably connect in parallel and with two sliding rails respectively；The gear shaft
It is set between the first rack gear and the second rack gear, and is engaged with the first rack gear and the second rack gear, for making the first rack gear and second
Rack gear reversely links；The both ends of gear shaft are rotatably connect with shell；
The paintbrush is set on draw runner, and is located at the perpendicular bisector of the first thimble and the second thimble, and the draw runner can be slided
It is arranged in the second sliding rail dynamicly；
The direction of first thimble, the second thimble and paintbrush is consistent.
Further, further include end cap, be provided with first shaft hole in the middle part of the end cap；The shell offers opposite set
The second axis hole and cap bore set, the size of the cap bore are greater than the size of gear shaft axle body, the first shaft hole and the second axis hole
It is adapted with the size of gear shaft shaft end；The end cap is set at cap bore, and is fixed on shell by the first screw；It is described
The two axial ends of gear shaft are respectively rotatably through at first shaft hole and the second axis hole, the axle body of gear shaft and the first rack gear and
The engagement of two rack gears.
It further, further include the first jag screw, the second jag screw, the first nut, the second nut, the first locking screw
Female and the second locking nut；First link block and the second link block offer the screw hole with the same direction of paintbrush respectively；
The first jag screw is set in the screw hole of the first link block, and is fixed by the first nut, and the first thimble is set to
In first jag screw, and fixed by the first locking nut；The second jag screw is set to the screw of the second link block
It in hole, and is fixed by the second nut, the second thimble is set in the second jag screw, and is fixed by the second locking nut.
Further, one end of the draw runner, which is offered, is adapted and perpendicular to the fixation hole of draw runner, institute with paintbrush size
It states and is provided with guide pipe on fixation hole, the tube wall of the guide pipe offers the first threaded hole, and the tail end of the paintbrush passes through solid
Determine in hole to guide pipe, and is fixed by screw.
Further, one end that the draw runner does not open up fixation hole is provided perpendicular to the limit plate of draw runner.
Further, Contraband shape is offered at the perpendicular bisector face of the bottom surface of the shell and the first thimble and the second thimble to slide
Slot, the Contraband shape sliding slot protrude from shell；It further include draw runner lid, the width of the draw runner lid is greater than the width of Contraband shape sliding slot notch
Degree, draw runner lid is placed at the notch of sliding slot, and is fixed on shell by the second screw, forms the second sliding rail.
Further, operation handle is provided at the top of the shell.
Further, the shell is cuboid, including front, the back side, bottom surface, bottom surface and two sides, and described first is sliding
Rail is arranged perpendicular to two sides.
It is different from the prior art, above-mentioned technical proposal is by the first stabilizer blade of setting, the second stabilizer blade for user and line segment or line
Certain two point alignment of item are arranged paintbrush for user and directly draw straight line, may not need and come again by the pen other than this triangular compass
Drawing.By paintbrush be arranged in can along on the draw runner that the perpendicular bisector of the first stabilizer blade and the second stabilizer blade line slidably reciprocates,
And the direction of first stabilizer blade, the second stabilizer blade and paintbrush is consistent, it, can will so that user is when drawing the perpendicular bisector of certain line segment
First stabilizer blade and the second stabilizer blade are aligned with two endpoints of the line segment respectively, then draw runner is pulled to drive paintbrush sliding, until paintbrush
Straight line is skidded off, which is then the perpendicular bisector of the line segment, without carrying out operation repeatedly.Need to find out the center of circle of certain circle
When, then it only needs to be repeated once above-mentioned operation, the intersection point of two perpendicular bisectors is then the center of circle of the circle, greatly reduces acquisition
The step of center of circle.The end that first stabilizer blade is arranged to the first rack gear connects the first link block, and the first link block connects the first thimble,
Second stabilizer blade be arranged to the second rack gear end connect the second link block, the second link block connect the second thimble, the first rack gear and
Second rack gear is separately positioned in two the first sliding rails being oppositely arranged in shell, and centre setting gear shaft is simultaneously engaged with, and is made
When proper first rack gear or the second rack gear are pulled or push, the second rack gear or the first rack gear can be mobile same toward opposite direction
Distance so that the first thimble and the second thimble can be adapted to toward the mobile identical distance in opposite direction, such setting
The line segment or lines of different length, and ensure that paintbrush is in the midpoint of the first thimble and the second thimble line, so that adjusting
Perpendicular bisector can be still drawn after whole two stabilizer blade.
Detailed description of the invention
Fig. 1 is the structure chart for the triangular compass that an embodiment of the present invention is related to；
Fig. 2 is the rearview for the triangular compass that an embodiment of the present invention is related to；
Fig. 3 is the side view for the triangular compass that an embodiment of the present invention is related to；
Fig. 4 is the cross-sectional view for the triangular compass that an embodiment of the present invention is related to.
Description of symbols:
1, shell；
10, Contraband shape sliding slot；
11, draw runner lid；
12, operation handle；
2, gear shaft；
3, the first stabilizer blade；
30, the first rack gear；
31, the first link block；
32, the first thimble；
33, the first jag screw；
34, the first nut；
35, the first locking nut；
4, the second stabilizer blade；
40, the second rack gear；
41, the second link block；
42, the second thimble；
43, the second jag screw；
44, the second nut；
45, the second locking nut；
5, paintbrush；
6, draw runner；
60, guide pipe；
61, fixing screws；
62, limit plate；
7, end cap；
70, first shaft hole；
8, the second axis hole；
9, the first screw；
13, the second screw；
14, the first fixture block；
15, the second fixture block.
Specific embodiment
Technology contents, construction feature, the objects and the effects for detailed description technical solution, below in conjunction with specific reality
It applies example and attached drawing is cooperated to be explained in detail.
The utility model provides a kind of triangular compass referring to FIG. 1 to FIG. 4, is drafting instrument, is mainly used for drawing in line segment
Vertical line looks for the center of circle for taking certain to justify and measures line segment length, this triangular compass can not need other tool auxiliary, can pass through
Its lines that can be drawn out independently is drawn in shirtsleeve operation.
In the particular embodiment, this triangular compass includes shell 1, gear shaft 2, the first stabilizer blade 3, the second stabilizer blade 4, paintbrush 5
And draw runner 6, first stabilizer blade 3, the second stabilizer blade 4 and draw runner 6 are connect with shell 1, user can grab when using this triangular compass
Shell is hold to be operated.The shapes such as cube, semicircular body can be set into shell, for the ease of the first stabilizer blade 3, the second stabilizer blade 4
With the connection of draw runner 6, this shell 1 is arranged to cuboid, including top surface, bottom surface, front, the back side and two sides, therefore following real
It applies in example, shell is described by taking the shell of cuboid as an example.The shell 1 can be made of metal or by plastics
It is made, in order to improve the service life of shell, the shell is preferably made of metal, especially stainless steel, this material can be to prevent
Only shell gets rusty, and can reduce the weight of shell, user-friendly triangular compass.
First stabilizer blade and the second stabilizer blade be then used for drawing when, be aligned as needed with certain two o'clock of lines, with into
In addition row next step is also used to measure the length of line segment.
The gear shaft 2 includes axle body and two axial ends, and all circumferential directions of the axle body are tooth, and the diameter at axis both ends is less than axis
The diameter of body, such fixation being provided with conducive to gear shaft 2 when with other tooth engagements.
The paintbrush 5 is used to provide the pen for drawing lines for this triangular compass, so that this triangular compass is drawn according to operating procedure
When lines processed, drawn without other pens.Paintbrush 5 is connect with draw runner 6, so that when draw runner 6 is mobile, paintbrush can be
It is moved synchronously under the drive of draw runner, and draws out required lines.
In the particular embodiment, two article of first sliding rail being through to outside shell and one article are offered in the shell 1
Two sliding rails, two the first sliding rails are oppositely arranged, i.e., two the first sliding rails are through to length perpendicular to the two sides of the shell of cuboid
The two sides of the shell of cube, two the first sliding rails can be parallel to the front and back of the shell of cuboid, can also be parallel
In the bottom surface and top surface of the shell of cuboid, for ease of operation, two the first sliding rails are parallel to the front of the shell of cuboid
And quilt cover.The opening of two the first sliding rails is opposite, for placing the component of the first stabilizer blade and the second stabilizer blade.Second sliding rail perpendicular to
The setting of first sliding rail, i.e. the second sliding rail and are through to the shell of cuboid perpendicular to the front and back of the shell of cuboid
Front and back for placing draw runner, and allows draw runner to slidably reciprocate at the second sliding rail.Since the second sliding rail is vertical
In the first sliding rail, and draw runner is slidably disposed in the second sliding rail, therefore paintbrush can be under the drive that draw runner slidably reciprocates
Draw the vertical line of certain lines.
In the particular embodiment, first stabilizer blade 3 includes the first rack gear 30, the first link block 31 and the first thimble
32, one end of first rack gear 30 is connect with first link block 31, and first thimble 32 and the first link block 31 connect
It connects.First rack gear is the driving member of the first stabilizer blade, and the first link block is that the first stabilizer blade is used to fix the component of the first thimble, first
Thimble is used to be aligned with certain point of lines.
Similarly, second stabilizer blade 4 include the second rack gear 40, the second link block 41 and the second thimble 42, described second
One end of rack gear 40 is connect with second link block 41, and second thimble 42 is connect with the second link block 41.Second rack gear
For the driving member of the second stabilizer blade, the second link block is the component that the second stabilizer blade is used to fix the second thimble, the second thimble be used for
Certain point alignment of lines.
In the particular embodiment, first rack gear and second rack gear it is parallel respectively and slideably with two cunnings
Rail connection, and the tooth of the first rack gear is opposite with the tooth of the second rack gear and protrudes from the opening of two the first sliding rails.Two first cunnings
The opening of rail is opposite and there are spacing, allows gear shaft perpendicular to the front and back of the shell of cuboid, and be set to
It between first rack gear and the second rack gear, and is engaged with the first rack gear and the second rack gear, such setting is so that the first rack gear and the
The vertical range of the linkage of two rack gear reverse syncs, the front and back and paintbrush that guarantee the first thimble and the movement of the second thimble is all consistent, from
And paintbrush is in always at the perpendicular bisector of the first thimble and the second thimble line.
Since gear shaft is used for so that the first rack gear and the linkage of the second rack gear reverse sync, gear shaft needs can be with
Rotation, in a further embodiment, the both ends of gear shaft are rotatably connect with shell, specifically, shell and gear shaft
The opposite place of both ends of the surface offers cap bore and the second axis hole 8 respectively, and the size of cap bore is greater than the size of 2 axle body of gear shaft, such
Setting installs gear shaft 2 in shell 1 or out of shell 1 by cap bore to take out, be additionally provided with and seal cap bore
End cap 7, the middle part of end cap 7 opens up first shaft hole 70, the size and first shaft hole 70 and the second axis 8 of the two axial ends of gear shaft 2
Hole matches, and when installing gear shaft 2, first inserts in a shaft end of gear shaft 2 at second axis hole 8, then by the another of gear shaft
One shaft end inserts at the first shaft hole 70 at 7 middle part of end cap, is finally fixed on end cap 7 on shell 1 by the first screw 9, at this time
The axle body of gear shaft engaged with the first rack gear and the second rack gear.Such set-up mode allows the two axial ends of gear shaft can
It is rotatably connect with shell, and is easily installed and dismantles gear shaft.
By taking the shell of cuboid as an example, two the first tracks are arranged in parallel with the top and bottom of shell respectively, the first tooth
Item and the second rack gear are parallel and slideably connects with two the first sliding rails, the tooth of the tooth of the first rack gear and the second rack gear with respect to and
The opening of two the first tracks is protruded from respectively, and the cap bore is opened in the back side of shell, and the first shaft hole is opened in shell
Front, when end cap is placed at cap bore, the second axis hole face on first shaft hole and end cap is arranged, after gear shaft installs,
It is meshed perpendicular to the front and back of shell, and with the first rack gear and the second rack gear.It is such setting so that the first rack gear and
Second rack gear sync direction can link in the shell of cuboid, guarantee that paintbrush is in the first thimble always and the second thimble connects
At the perpendicular bisector of line.
In a certain embodiment, the section of first track be it is T-shaped, the section of first rack gear and the second rack gear is
Compatible T-shaped therewith, such setting slides into the first rack gear and the second rack gear respectively in two the first tracks,
The opening that the tooth of the tooth of first rack gear and the second rack gear can protrude from two the first tracks again is engaged with gear shaft.It is such to set
Set the installation and removal for easily facilitating the first rack gear and the second rack gear.
In a certain embodiment, the length of first rack gear and the second rack gear is not less than the length of the first track, preferably
The length of first rack gear and the second rack gear is equal to the length of the first track by ground, and such setting is so that when the first rack gear and second
When rack gear is slid into two the first tracks respectively completely, the first thimble and the second thimble can be bonded shell completely, work as needs
When widening the spacing of the first thimble and the second thimble, the first thimble or the second thimble are pulled out outward, the first rack gear and the second tooth
Item can have enough length to be displaced outwardly without deviating to outside shell.
In a certain embodiment, after the first rack gear 30 and the second rack gear 40 constantly move outward in order to prevent, the first tooth
Item 30 and the second rack gear 40 completely disengage shell, and first rack gear is located at the intracorporal one end of shell and the second rack gear is located in shell
Divided at one end be not provided with the first fixture block 14 and the second fixture block 15, the first fixture block 14 and the second fixture block 15 are respectively perpendicular and are set to
The flank of tooth of the flank of tooth of first rack gear and the second rack gear, it is such to be arranged so that the first rack gear is located at the intracorporal one end of shell and the second tooth
Item is located at the intracorporal one end of shell can be blocked by the first fixture block and the second fixture block respectively when close to gear shaft, the first rack gear and second
Rack gear will not entirely be deviate from out of shell.
In the particular embodiment, the direction of first thimble, the second thimble and paintbrush is consistent, i.e. the needle of the first thimble
Point, the needle point of the second thimble are consistent with the direction of the pen tip of paintbrush, by taking the shell of cuboid as an example, the first thimble, the second thimble
Plane where being each perpendicular to the bottom surface of shell with paintbrush, it is such that needle point, the second thimble that can just make the first thimble are set
Needle point and the picture head of paintbrush can touch same plane simultaneously and chart.
The paintbrush can be wood pencil, ball pen or propelling pencil etc., due to the lines for using this triangular compass to draw
May be auxiliary line, need to remove after drafting, in addition, in order to facilitate the installation of with dismantle this paintbrush, in preferred embodiment
In, the paintbrush uses wood pencil light and handy and for cylinder, and such setting using the drafting of this triangular compass so that be used for
It after the lines of auxiliary, can be wiped clean by erasing rubber, the pick-and-place in use process is more convenient light and handy.
Further include in a further embodiment in order to facilitate the installation and removal of the first thimble 32 and the second thimble 43
First jag screw 33, the second jag screw 43, the first nut 34, the second nut 44, the first locking nut 35 and the second locking
Nut 45.First link block and the second link block offer the screw hole with the same direction of paintbrush respectively；Described first opens
Fork screw is set in the screw hole of the first link block, and is fixed by the first nut, and the first thimble is set to the first jag spiral shell
In nail, and fixed by the first locking nut；The second jag screw is set in the screw hole of the second link block, and is passed through
Second nut is fixed, and the second thimble is set in the second jag screw, and is fixed by the second locking nut.Such setting makes
User is obtained after the first thimble or the damage of the second thimble, dismantles old and new the first thimble and the second thimble is installed.Work as paintbrush
When being replaced with the pen of different length, the locating height of user adjustable first thimble and the second thimble, so that the pen tip of paintbrush
It is in sustained height with the needle point of the first thimble, the needle point of the second thimble, thus when guaranteeing to chart using this triangular compass, San Zheke
To touch the drawing paper of drawing simultaneously.
In order to install paintbrush, in a further embodiment, one end of the draw runner 6 is offered mutually fits with 5 size of paintbrush
Match and perpendicular to the fixation hole of draw runner 6, is provided with guide pipe 60 on the fixation hole, the tube wall of the guide pipe 60 offers
The tail end of one threaded hole, the paintbrush passes through in fixation hole to guide pipe, and fixed by fixing screws 61.It is dismountable in this way
Setting is so that user can according to need replacement paintbrush, and such as during using this triangular compass, paintbrush damage or needs are more
Change the paintbrush etc. of different thicknesses.
In a certain embodiment, the draw runner 6 is set in parallel at the second sliding rail and is through to outside shell, and the two of draw runner
End is in outside shell, and draw runner 6 is whole in order to prevent skids off the second sliding rail, causes draw runner to detach and lose, the draw runner
The one end for not opening up fixation hole is provided perpendicular to the limit plate 62 of draw runner, the setting of limit plate 62 can anti-non-slip nosing be detached from
Second sliding rail.
In a further embodiment, the perpendicular bisector face of the bottom surface of the shell and the first thimble and the second thimble line
Place offers Contraband shape sliding slot 10, and the Contraband shape sliding slot 10 protrudes from shell；It further include draw runner lid 11, the width of the draw runner lid 11
Greater than the width of 10 notch of Contraband shape sliding slot, the edge of draw runner lid 11 and the edge of Contraband shape sliding slot are provided with the second threaded hole, sliding
Item lid is placed at the notch of sliding slot, and is fixed on shell by the second screw 13, and the second sliding rail is formed.Such setting can be with
It is easily installed or takes out draw runner.
This triangular compass in order to facilitate the use of the user is provided with operation in a further embodiment at the top of the shell
Handle 12.User can grasp operation handle and operate this triangular compass.
It should be noted that being not intended to limit although the various embodiments described above have been described herein
The scope of patent protection of the utility model.Therefore, based on the innovative idea of the utility model, embodiment described herein is carried out
Change and modification or equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, directly
Or above technical scheme is used in other related technical areas indirectly, it is included in the patent protection model of the utility model
Within enclosing.
Claims (8)
1. a kind of triangular compass, which is characterized in that including shell, gear shaft, the first stabilizer blade, the second stabilizer blade, paintbrush and draw runner；
Two the first sliding rails and second sliding rail being through to outside shell are offered in the shell, two the first sliding rails are opposite
Setting, the second sliding rail are arranged perpendicular to the first sliding rail；
First stabilizer blade includes the first rack gear, the first link block and the first thimble, one end of first rack gear and described the
The connection of one link block, first thimble are connect with the first link block；
Second stabilizer blade includes the second rack gear, the second link block and the second thimble, one end of second rack gear and described the
The connection of two link blocks, second thimble are connect with the second link block；
First rack gear and second rack gear are slideably connect in parallel and with two sliding rails respectively；The gear shaft setting
It is engaged between the first rack gear and the second rack gear, and with the first rack gear and the second rack gear, for making the first rack gear and the second rack gear
Reversed linkage；The both ends of gear shaft are rotatably connect with shell；
The paintbrush is set on draw runner, and is located at the perpendicular bisector of the first thimble and the second thimble, and the draw runner is slideably
It is arranged in the second sliding rail；
The direction of first thimble, the second thimble and paintbrush is consistent.
2. triangular compass according to claim 1, which is characterized in that further include end cap, is provided in the middle part of the end cap
One axis hole；The shell offers the second axis hole being oppositely arranged and cap bore, and the size of the cap bore is greater than gear shaft axle body
Size, the first shaft hole and the second axis hole are adapted with the size of gear shaft shaft end；The end cap is set at cap bore, and logical
The first screw is crossed to be fixed on shell；The two axial ends of the gear shaft are respectively rotatably through at first shaft hole and the second axis hole
Place, the axle body of gear shaft are engaged with the first rack gear and the second rack gear.
3. triangular compass according to claim 1, which is characterized in that further include the first jag screw, the second jag screw,
One nut, the second nut, the first locking nut and the second locking nut；First link block and the second link block open up respectively
There is the screw hole with the same direction of paintbrush；The first jag screw is set in the screw hole of the first link block, and passes through the
One nut is fixed, and the first thimble is set in the first jag screw, and is fixed by the first locking nut；The second jag spiral shell
Nail is set in the screw hole of the second link block, and is fixed by the second nut, and the second thimble is set in the second jag screw,
And it is fixed by the second locking nut.
4. triangular compass according to claim 1, which is characterized in that one end of the draw runner is offered mutually fits with paintbrush size
Match and perpendicular to the fixation hole of draw runner, is provided with guide pipe on the fixation hole, the tube wall of the guide pipe offers the first spiral shell
The tail end of pit, the paintbrush passes through in fixation hole to guide pipe, and is fixed by fixing screws.
5. triangular compass according to claim 4, which is characterized in that one end that the draw runner does not open up fixation hole is provided with vertical
Directly in the limit plate of draw runner.
6. triangular compass according to claim 1, which is characterized in that the bottom surface of the shell and the first thimble and the second thimble
Perpendicular bisector face at offer Contraband shape sliding slot, the Contraband shape sliding slot protrudes from shell；It further include draw runner lid, the draw runner lid
Width is greater than the width of Contraband shape sliding slot notch, and draw runner lid is placed at the notch of sliding slot, and is fixed on shell by the second screw,
Form the second sliding rail.
7. triangular compass according to claim 1, which is characterized in that be provided with operation handle at the top of the shell.
8. triangular compass according to claim 1, which is characterized in that the shell is cuboid, including front, the back side, bottom
Face, bottom surface and two sides, first sliding rail are arranged perpendicular to two sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820397874.9U CN208411213U (en) | 2018-03-23 | 2018-03-23 | A kind of triangular compass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820397874.9U CN208411213U (en) | 2018-03-23 | 2018-03-23 | A kind of triangular compass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208411213U true CN208411213U (en) | 2019-01-22 |
Family
ID=65118005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820397874.9U Expired - Fee Related CN208411213U (en) | 2018-03-23 | 2018-03-23 | A kind of triangular compass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208411213U (en) |
-
2018
- 2018-03-23 CN CN201820397874.9U patent/CN208411213U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
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Granted publication date: 20190122 Termination date: 20200323 |