CN209683288U - A kind of Vernier compasses - Google Patents
A kind of Vernier compasses Download PDFInfo
- Publication number
- CN209683288U CN209683288U CN201720573683.9U CN201720573683U CN209683288U CN 209683288 U CN209683288 U CN 209683288U CN 201720573683 U CN201720573683 U CN 201720573683U CN 209683288 U CN209683288 U CN 209683288U
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- CN
- China
- Prior art keywords
- compasses
- vernier
- stabilizer blade
- sliding sleeve
- hinged
- 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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Abstract
The utility model discloses a kind of Vernier compasses, including the first compasses stabilizer blade and second compasses stabilizer blade hinged by articulated shaft, compasses handle is installed on the articulated shaft, the first compasses stabilizer blade is equipped with sliding sleeve and the first scale strip, and first scale strip is used to that the sliding sleeve to be cooperated to indicate that the compasses currently make the radius r of circle；The sliding sleeve is equipped with vernier device, is hinged with drive rod between the vernier device and the second compasses stabilizer blade.Sliding sleeve in the utility model cooperates what the first scale strip can quickly obtain compasses needs to make radius of graph r.Under the cooperation of vernier device, compasses are mapped with accurate radius parameter, improves in the adaptability to the very high mapping occasion of required precision.And the overall structure of two stabilizer blades of compasses mapping is still remained, the learning cost for reducing user is easy to upper hand.
Description
Technical field
The utility model relates to teaching aid fields, more particularly to a kind of Vernier compasses.
Background technique
Compasses are the tools for drawing round or string, are usually used in construction with ruler and compasses as equipment common in teaching aid.Compasses are logical
It is often made of metal, the head including two compasses stabilizer blades and hinged two compasses stabilizer blades.Two compasses stabilizer blades pass through head
Hinge adjusts spacing.But in routine use, it is often necessary to it is carried out doing circle according to radius, and throughput dipstick metering takes two compasses branch
The spacing of foot was both inconvenient or inaccurate.
The Chinese patent literature of Publication No. CN205387017U discloses a kind of compasses with a scale, including compasses handle,
Compasses valve jacket, the first compasses stabilizer blade, the second compasses stabilizer blade, compasses point and pencil, the compasses handle are connected to compasses valve jacket roof
Center, the upper end of the first compasses stabilizer blade, the second compasses stabilizer blade upper end be all connected with compasses valve jacket, compasses point connects the first compasses
The lower end of stabilizer blade, pencil connect the lower end of the second compasses stabilizer blade, further include first bevel gear, the second cone tooth in the compasses valve jacket
Wheel, first gear, second gear, third gear, the 4th gear, first gear axis, second gear axis, third gear shaft, the 4th
Gear shaft and the 5th gear shaft.The technical solution is realized by the cooperation of gear set determines the first compasses stabilizer blade, the second compasses branch
The distance between foot, but the gear set manufacturing is relative complex, and adjusts the first compasses stabilizer blade, the second circle by compasses handle
Rule stabilizer blade is relatively elaborate, and form is smaller to be also not easy to observe.
The Chinese patent literature of Publication No. CN205364939U discloses a kind of multifunctional compass, including articulated shaft,
The upper end of one compass leg, the second compass leg and compasses operation tip, first compass leg and the second compass leg turns with articulated shaft
Dynamic connection, is fixed with compasses handle at the top of articulated shaft, and the compasses handle is metal cylinder；First compass leg and second
Compass leg is cylindrical, is equipped with compasses operation tip in the first compass leg lower end, and the compasses operation tip includes shaft, is being turned
Fixed there are two connecting rod on axis, the angle between described two connecting rods is 90 °, and a connecting rod front end is equipped with the wherein
One fixing piece is provided with pencil-lead on the first fixing piece, is equipped with the second fixing piece in another connecting rod front end, solid second
Determine to be provided with rubber on part.In the technical solution, when without using storage compasses, sliding ruler will increase the storage volume of compasses,
It is inconvenient to carry.
The Chinese patent literature of Publication No. CN204936605U discloses a kind of more accurately compasses, including compasses handle
Hand, the first compasses stabilizer blade, the second compasses stabilizer blade, the compasses handle lower section are movably connected with the first compasses stabilizer blade, the second circle
Stabilizer blade is advised, further includes shaft, strut, graduated scale, is equipped with shaft above the first compasses stabilizer blade, on the second compasses stabilizer blade
Side is equipped with strut, and described graduated scale one end is connected by shaft with the first compasses stabilizer blade, and the graduated scale other end is logical
Strut is crossed to be connected with the second compasses stabilizer blade.The first compasses of technical solution stabilizer blade, the second compasses stabilizer blade and the graduated scale
Movement it is mutually indepedent, when storage, needs multiple operations to be arranged, and improves the Operating Complexity of compasses.
Utility model content
In view of the deficienciess of the prior art, the utility model, which provides one kind, can accurately map according to radius, operate
Compasses easy and that sliding ruler can be stored.
The technical solution of the utility model are as follows:
A kind of Vernier compasses, it is described hinged including the first compasses stabilizer blade and second compasses stabilizer blade hinged by articulated shaft
Compasses handle is installed, the first compasses stabilizer blade is equipped with sliding sleeve and the first scale strip, and first scale strip is used on axis
Make round radius r in cooperating the sliding sleeve to indicate that the compasses are current；The sliding sleeve is equipped with vernier device, the trip
Drive rod is hinged between device for mark and the second compasses stabilizer blade.
Sliding sleeve cooperate the first scale strip can quickly obtain compasses needs make radius of graph r.In vernier device
Under cooperation, compasses are mapped with accurate radius parameter, improves the adaptability in special occasions.And do not change
It is rounded the overall structure of rule, the learning cost for reducing user is easy to upper hand.
Further, the vernier device includes:
Vernier lead screw is rotatably installed on the sliding sleeve；
Hinged seat for the hinged drive rod and is equipped with the wire hole cooperated with the vernier lead screw；
Second scale strip is arranged on the sliding sleeve.
Vernier lead screw drives hinged seat by the wire hole on hinged seat, realizes the function of vernier.Hinged biography on hinged seat
Lever can accurately adjust the radius r that compasses currently make circle, improve mapping precision.
Further, the vernier lead screw linkage has stepping knob.Stepping knob being capable of convenient driving vernier lead screw tune
Full circle rule currently make round radius r, user-friendly.
Further, fixing seat, the vernier silk are equipped with towards the side of the second compasses stabilizer blade on the sliding sleeve
Thick stick is worn on the fixing seat.Fixing seat, which was arranged on sliding sleeve towards the advantages of side of the second compasses stabilizer blade, to be
Volume of the compasses under receiving state can be reduced, do not return the portable performance for influencing compasses because vernier device is increased.
Further, the vernier device further includes the finger being arranged on the hinged seat with second scale strip cooperation
Needle.Compasses are a kind of teaching aids for being frequently necessary to carry, and are easy to happen abrasion, if using the form for being similar to sliding sleeve, i.e., it is sharp
With the edge indicating graduation of hinged seat, it is easy to appear the problem that precision is inaccurate after wearing, therefore the design of pointer can be mentioned effectively
The precision and service life of high compasses.
Further, the sliding sleeve is equipped with the locking piece for locking the sliding sleeve and the first compasses stabilizer blade.Lock
Determine part and can effectively reduce radius r of compasses during mapping to change, improves the precision and efficiency of mapping.
Further, the locking piece is the locking bolt being threaded through on the sliding sleeve, the locking bolt with it is described
First compasses stabilizer blade offsets.The setting of locking bolt convenient and practical, Yong Huyi while reducing production cost and required precision
In upper hand and operation.
Further, the first compasses stabilizer blade and the second compasses stabilizer blade have a receiving state mutually drawn close, and described the
Two compasses stabilizer blades are equipped with the escape groove that the vernier device is stored under receiving state.The design of escape groove can be cared for and be effectively reduced
Volume when compasses are stored.It can also play the role of the fragile vernier device of protection simultaneously.
The utility model has the advantage that
Sliding sleeve cooperate the first scale strip can quickly obtain compasses needs make radius of graph r.In vernier device
Under cooperation, compasses are mapped with accurate radius parameter, improves to the very high mapping occasion of required precision
Adaptability.And still remain two stabilizer blades of compasses mapping overall structure, reduce user learning cost be easy on
Hand.
Detailed description of the invention
Fig. 1 is the present embodiment Vernier compasses schematic diagram；
Fig. 2 is enlarged diagram at A in Fig. 1.
Specific embodiment
Illustrate specific embodiment of the present invention with reference to the accompanying drawing.
As depicted in figs. 1 and 2, a kind of Vernier compasses, including passing through the first hinged compasses stabilizer blade 13 of articulated shaft 12 and the
Two compasses stabilizer blades 14, compasses handle 11 is equipped on articulated shaft 12, and the first compasses stabilizer blade 13 is equipped with sliding sleeve 16 and the first quarter
Item 131 is spent, the first scale strip 131 is used to that sliding sleeve 16 to be cooperated to indicate that compasses currently make the radius r of circle；Sliding sleeve 16 is equipped with
Vernier device 18 is hinged with drive rod 19 between vernier device 18 and the second compasses stabilizer blade 14.
Vernier device 18 includes:
Vernier lead screw 181 is rotatably installed on sliding sleeve 16；
Hinged seat 182 for hinged drive rod 19 and is equipped with the wire hole (not shown) cooperated with vernier lead screw 181；
Second scale strip 183 is arranged on sliding sleeve 16；
Pointer 184 is arranged on hinged seat 182 and cooperates with the second scale strip 183.
It wherein is equipped with fixing seat 185 towards the side of the second compasses stabilizer blade 14 on sliding sleeve 16, vernier lead screw 181 is threaded through
In fixing seat 185.Fixing seat 185 is two parallel brackets being fixed on sliding sleeve 16, and fixation hole is offered on bracket, and (figure is not
Show), vernier lead screw 181 wears the fixation wherein realized axially and radially, can circumferentially rotate freely.Vernier lead screw 181 links
There is stepping knob 186.The outside of two parallel brackets is arranged in stepping knob 186, and user is facilitated to adjust.186 He of stepping knob
Vernier lead screw 181 can be arranged self-locking on demand.Such as when vernier lead screw 181 is self-locking thread, stepping knob 186 be can choose
It is not provided with locking mechanism；Or when stepping knob 186 is provided with locking mechanism, vernier lead screw 181 can choose motion thread；
Either stepping knob 186 and vernier lead screw 181 are respectively provided with locking or are not provided with locking.
In the exemplary scenario that the present embodiment provides, stepping knob 186 uses common knob design, using annular knurl work
Skill increasing friction force.In other operating conditions, stepping knob 186 can also be mentioned using the stepping knob 186 of default feeding stepping-in amount
The regulated efficiency of the high round radius r currently be to compasses of vernier device 18.For example, by using in fixing seat 185 pre-determined distance open
If groove, the steel ball by resilient element urges is installed in inside, and the form of the locating slot of pre-determined distance is arranged on stepping knob 186.Step
Default feeding stepping-in amount into knob 186 can be realized using feasible program in the prior art.
Sliding sleeve 16 is equipped with the locking piece 161 for locking sliding sleeve 16 and the first compasses stabilizer blade 13.Locking piece 161 is
The locking bolt being threaded through on sliding sleeve 16, locking bolt offset with the first compasses stabilizer blade 13.In order to reduce to the first compasses branch
The abrasion of foot 13, the end face that locking bolt and the first compasses stabilizer blade 13 offset can using encapsulated technique, increasing friction force it is same
The Shi Tigao compasses service life avoids the problem that because abrasion causes the readable decline of the first scale strip 131.
First compasses stabilizer blade 13 and the second compasses stabilizer blade 14 have the receiving state (not shown) mutually drawn close, the second compasses
Stabilizer blade 14 is equipped with the escape groove 141 that vernier device 18 is stored under receiving state.
In use:
When radius r required known to user needs to map, locking piece 161 is unclamped first, pulls open the first compasses stabilizer blade
13 and the second compasses stabilizer blade 14, under the action of drive rod 19, sliding sleeve 16 can be along 13 upward sliding of the first compasses stabilizer blade simultaneously
The substantially numerical value of real-time display radius r, when to adjust to distance on the first scale strip 131 the radius r that needs nearest for sliding sleeve 16
When exact value, user needs to lock locking piece 161, then rotates stepping knob 186, passes through pointer 184 and the second scale strip
183 adjust to exact value.It can start to map.
When user's mapping, which finishes, to be needed to store compasses, locking piece 161 is unclamped first, by the first compasses stabilizer blade 13 and second
Compasses stabilizer blade 14 is mutually drawn close until vernier device 18 enters in escape groove 141.
The above is only the preferred embodiments of the utility model, are not intended to limit the utility model, for this field
Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model,
Any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (7)
1. a kind of Vernier compasses, including the first compasses stabilizer blade and second compasses stabilizer blade hinged by articulated shaft, the articulated shaft
On compasses handle is installed, which is characterized in that the first compasses stabilizer blade be equipped with sliding sleeve and the first scale strip, described first
Scale strip is used to that the sliding sleeve to be cooperated to indicate that the compasses currently make the radius r of circle；The sliding sleeve is filled equipped with vernier
It sets, is hinged with drive rod between the vernier device and the second compasses stabilizer blade；
The vernier device includes:
Vernier lead screw is rotatably installed on the sliding sleeve；
Hinged seat for the hinged drive rod and is equipped with the wire hole cooperated with the vernier lead screw；
Second scale strip is arranged on the sliding sleeve.
2. Vernier compasses as described in claim 1, which is characterized in that the vernier lead screw linkage has stepping knob.
3. Vernier compasses as described in claim 1, which is characterized in that towards the second compasses stabilizer blade on the sliding sleeve
Side is equipped with fixing seat, and the vernier lead screw is worn on the fixing seat.
4. Vernier compasses as described in claim 1, which is characterized in that the vernier device further includes being arranged in the hinged seat
The upper pointer with second scale strip cooperation.
5. Vernier compasses as described in claim 1, which is characterized in that the sliding sleeve is equipped with for locking the sliding sleeve
With the locking piece of the first compasses stabilizer blade.
6. Vernier compasses as claimed in claim 5, which is characterized in that the locking piece is the lock being threaded through on the sliding sleeve
Determine bolt, the locking bolt offsets with the first compasses stabilizer blade.
7. Vernier compasses as described in claim 1, which is characterized in that the first compasses stabilizer blade and the second compasses stabilizer blade have
The receiving state mutually drawn close, the second compasses stabilizer blade are equipped with the evacuation that the vernier device is stored under receiving state
Slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720573683.9U CN209683288U (en) | 2017-05-22 | 2017-05-22 | A kind of Vernier compasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720573683.9U CN209683288U (en) | 2017-05-22 | 2017-05-22 | A kind of Vernier compasses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209683288U true CN209683288U (en) | 2019-11-26 |
Family
ID=68593298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720573683.9U Expired - Fee Related CN209683288U (en) | 2017-05-22 | 2017-05-22 | A kind of Vernier compasses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209683288U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113071249A (en) * | 2021-03-30 | 2021-07-06 | 郑州铁路职业技术学院 | Compasses convenient for teenagers to use |
-
2017
- 2017-05-22 CN CN201720573683.9U patent/CN209683288U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113071249A (en) * | 2021-03-30 | 2021-07-06 | 郑州铁路职业技术学院 | Compasses convenient for teenagers to use |
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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: 20191126 Termination date: 20200522 |