CN207797971U - Bevel protractor - Google Patents
Bevel protractor Download PDFInfo
- Publication number
- CN207797971U CN207797971U CN201820239572.9U CN201820239572U CN207797971U CN 207797971 U CN207797971 U CN 207797971U CN 201820239572 U CN201820239572 U CN 201820239572U CN 207797971 U CN207797971 U CN 207797971U
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- CN
- China
- Prior art keywords
- ruler
- hole
- groove
- bolt
- elastic ring
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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model discloses bevel protractors,Including the first ruler and the second ruler,One end of first ruler and one end of second ruler are hinged,It is provided with digital display device on first ruler,First ruler one end is provided with first through hole,One end of second ruler is provided with the second through-hole,The first through hole and second through-hole are arranged concentrically,Bolt is connected after passing through the first through hole and second through-hole with nut,The part outer ring that the bolt is located in the first through hole and second through-hole is provided with hollow elastic ring,The end set of the bolt is fluted,It is provided with fluid in the groove and the elastic ring,The elastic component for being provided with piston rod in the groove and the piston rod being driven to be moved towards the bottom portion of groove,Two accesses of the connection groove and the elastic ring are provided in the bolt,It is provided with check valve in a wherein access,The check valve is unidirectionally flowed into from the elastic ring side in the groove by fluid,It is provided with throttle valve in another access.
Description
Technical field
The utility model is related to a kind of angle squares, more particularly, to a kind of universal protractor.
Background technology
Earliest bevel protractor, structure is more complicated, including vernier, fixture block, ruler, angle square and fanning strip etc., and operates
More complicated, common people are not difficult to grasp by training.
With the development of sensor and electronic equipment, existing bevel protractor structure all becomes very simple, bevel protractor packet
The ruler that two one end are mutually rotatablely connected is included, hinged place is provided with angular transducer, is provided on one of ruler aobvious
Show device.When measurement, angle can directly be read over the display, very convenient.
But this angle square has a problem that, certain occasions, the position inconvenience reading angular number of our measurement angles
Value, needs after having measured, and angle square is taken out and is read.If two ruler hinged places, we be arranged frictional force it is larger, then I
Be difficult to break into two with one's hands when measuring, measure very inconvenient, however if the very little that hinged place frictional force is arranged, measured, slightly by
To some external force, the angle between two rulers will change.
Certainly it is readily conceivable that a scheme be that the hinged place of two rulers is bolted, when needing to break into two with one's hands,
Bolt is unscrewed, is measured after getting well, then bolt is tightened, this method, after having measured angle, then it is two to tighten bolt
Angle between ruler can change, therefore also be not suitable for.
Utility model content
For the deficiencies in the prior art, the utility model provides bevel protractor, is useful in and measures position inconvenience
Direct reading occasion.
The utility model is achieved by the following technical solution：Bevel protractor, including the first ruler and the second ruler, institute
One end of one end and second ruler for stating the first ruler is hinged, and digital display device is provided on first ruler, described
First ruler one end is provided with first through hole, and one end of second ruler is provided with the second through-hole, the first through hole and institute
It states the second through-hole to be arranged concentrically, bolt is connected after passing through the first through hole and second through-hole with nut, the bolt position
Part outer ring in the first through hole and second through-hole is provided with hollow elastic ring, the end set of the bolt
It is fluted, it is provided with fluid in the groove and the elastic ring, piston rod is provided in the groove and drives the piston
The elastic component that bar is moved towards the bottom portion of groove is provided be connected to the groove and the elastic ring two in the bolt
Access, wherein being provided with check valve in an access, the check valve is unidirectionally flowed into institute by fluid from the elastic ring side
It states in groove, throttle valve is provided in another access.When peacetime state, piston under the action of the elastic member, is located at recessed
The bottom of slot, at this point, the liquid in groove is all flowed into elastic ring, elastic ring is in swelling state, the outer ring of elastic ring
It is in contact with first through hole and the second through-hole inner ring, at this moment the rotary resistance between the first ruler and the second ruler is very big, needs
When measurement, piston rod is pulled out, the liquid in elastic ring is flowed to by check valve in groove, and at this time elastic ring is shunk, and first
Ruler and the second ruler easily can be rotated mutually, be measured, meanwhile, under the action of the elastic member, the fluid in groove
It gradually flows back into elastic ring, after reflux to a certain extent, elastic ring closely connects with the inner wall of first through hole and the second through-hole again
It touches, at this time, rotary resistance is just very big between the first ruler and the second ruler, we can at this time take out bevel protractor progress
Reading.By changing the flow area of overflow valve, we can control the first ruler and the second ruler when can be freely movable
Between.The angle square of this structure, when measuring, angle can be adjusted freely, very light, after being measured, and can be locked automatically
Tightly, facilitate taking-up angle square to be read, be highly suitable for measuring the inconvenient direct reading occasion in position.
In above-mentioned technical proposal, it is preferred that the elastic component is spring.
In above-mentioned technical proposal, it is preferred that the end set of the bolt has lid, the piston rod to be divided into first part
And second part, wherein the first part matches with the groove inner wall, the second part is pierced by the end of the lid
Portion, the spring pocket on the second part, the both ends of the spring respectively with the lid and the first part end
It is in contact.
In above-mentioned technical proposal, it is preferred that the end of the first part has a circle towards the hand-held part of circumferentially extending.
The utility model has the advantages that：When peacetime state, piston under the action of the elastic member, is located at groove
Bottom, at this point, the liquid in groove is all flowed into elastic ring, elastic ring is in swelling state, the outer ring of elastic ring and the
One through-hole and the second through-hole inner ring are in contact, and at this moment the rotary resistance between the first ruler and the second ruler is very big, needs to measure
When, piston rod is pulled out, the liquid in elastic ring is flowed to by check valve in groove, and at this time elastic ring is shunk, the first ruler
It easily can mutually rotate, measure with the second ruler, meanwhile, under the action of the elastic member, the fluid in groove is gradual
It flowing back into elastic ring, after reflux to a certain extent, elastic ring is in close contact with the inner wall of first through hole and the second through-hole again, this
When, rotary resistance is just very big between the first ruler and the second ruler, we can at this time take out bevel protractor and read.
By changing the flow area of overflow valve, we can control the first ruler and the second ruler can the free movable time.This
The angle square of kind structure, when measuring, angle can be adjusted freely, very light, after being measured, and energy auto lock, side
Just it takes out angle square to be read, is highly suitable for measuring the inconvenient direct reading occasion in position.
Description of the drawings
The schematic diagram of Fig. 1 the utility model locking states.
The schematic diagram of the free adjustment state of Fig. 2 the utility model.
Specific implementation mode
The utility model is described in further detail with specific implementation mode below in conjunction with the accompanying drawings：
Referring to Fig. 1-2, bevel protractor, including the first ruler 1 and the second ruler 2, one end of first ruler 1 and described
One end of second ruler 2 is hinged, and digital display device 3 is provided on first ruler 1, and described first ruler, 1 one end is provided with
One end of first through hole 11, second ruler 2 is provided with the second through-hole 21, the first through hole 11 and second through-hole 21
It is arranged concentrically, bolt 4 is connected after passing through the first through hole and second through-hole with nut 5, and the bolt 4 is positioned at described the
Part outer ring in one through-hole and second through-hole is provided with hollow elastic ring 6, and the end set of the bolt 4 is fluted
42, fluid is provided in the groove 42 and the elastic ring 6, and piston rod 7 is provided in the groove 42 and drives the work
The spring 8 that stopper rod 7 is moved towards the bottom portion of groove is provided in the bolt 4 and is connected to the groove and the elastic ring
Two accesses, wherein be provided with check valve 43 in an access, the check valve is by fluid from elastic ring side one-way flow
Enter into the groove, throttle valve 44 is provided in another access.
The end set of the bolt 4 has lid 9, the piston rod 7 to be divided into first part 71 and second part 72, wherein
The first part 71 matches with 42 inner wall of the groove, and the second part 72 is pierced by the end of the lid 9, the bullet
Spring is sleeved on the second part 72, and the both ends of the spring are in contact with the lid and the first part end respectively.
The end of the first part has hand-held part 7a of the circle towards circumferentially extending.
When peacetime state, piston under the action of the spring, is located at the bottom of groove, at this point, the liquid in groove all flows
Entering into elastic ring, elastic ring is in swelling state, and the outer ring of elastic ring is in contact with first through hole and the second through-hole inner ring, this
When the first ruler and the second ruler between rotary resistance it is very big, need measure when, piston rod is pulled out, the liquid in elastic ring
It is flowed in groove by check valve, at this time elastic ring is shunk, and the first ruler and the second ruler easily can be rotated mutually, into
Row measures, meanwhile, under the action of the spring, the fluid in groove gradually flows back into elastic ring, after reflux to a certain extent, bullet
Property circle again with the inner wall of first through hole and the second through-hole be in close contact, at this time, between the first ruler and the second ruler rotate resistance
Power is just very big, we can at this time take out bevel protractor and read.By changing the flow area of overflow valve, we can be with
It controls the first ruler and the second ruler can the free movable time.The angle square of this structure, when measuring, angle can be free
It adjusts, it is very light, after being measured, and energy auto lock, facilitate taking-up angle square to be read, is highly suitable for measuring position
Set inconvenient direct reading occasion.
Claims (4)
1. bevel protractor, including the first ruler and the second ruler, one end of one end of first ruler and second ruler
It is hinged, digital display device is provided on first ruler, it is characterised in that：It is logical that first ruler one end is provided with first
The one end in hole, second ruler is provided with the second through-hole, and the first through hole and second through-hole are arranged concentrically, and bolt is worn
It is connected with nut after crossing the first through hole and second through-hole, the bolt is located at the first through hole and described second and leads to
Part outer ring in hole is provided with hollow elastic ring, and the end set of the bolt is fluted, the groove and the elasticity
Fluid is provided in circle, the bullet that piston rod is provided in the groove and the piston rod is driven to be moved towards the bottom portion of groove
Property part, two accesses of the connection groove and the elastic ring are provided in the bolt, wherein being provided in an access
Check valve, the check valve is unidirectionally flowed into from the elastic ring side in the groove by fluid, in another access
It is provided with throttle valve.
2. bevel protractor according to claim 1, it is characterised in that：The elastic component is spring.
3. bevel protractor according to claim 2, it is characterised in that：The end set of the bolt has lid, the work
Stopper rod is divided into first part and second part, wherein the first part matches with the groove inner wall, the second part
Be pierced by the end of the lid, the spring pocket on the second part, the both ends of the spring respectively with the lid and
The first part end is in contact.
4. bevel protractor according to claim 3, it is characterised in that：The end of the first part has a circle towards week
To the hand-held part of extension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820239572.9U CN207797971U (en) | 2018-02-11 | 2018-02-11 | Bevel protractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820239572.9U CN207797971U (en) | 2018-02-11 | 2018-02-11 | Bevel protractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207797971U true CN207797971U (en) | 2018-08-31 |
Family
ID=63276281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820239572.9U Active CN207797971U (en) | 2018-02-11 | 2018-02-11 | Bevel protractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207797971U (en) |
-
2018
- 2018-02-11 CN CN201820239572.9U patent/CN207797971U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201022 Address after: No. 99, Fuyang street, Lingxia Town, Jindong District, Jinhua City, 321000 Zhejiang Province Patentee after: Jinhua Haode Technology Co.,Ltd. Address before: 321307 ancient mountain production base, guushan Town, Yongkang City, Jinhua, Zhejiang Patentee before: YONGKANG SHIYA WANXIN TOOLS FACTORY |
|
| TR01 | Transfer of patent right |