CN107036570A - A kind of angel measuring instrument - Google Patents
A kind of angel measuring instrument Download PDFInfo
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- CN107036570A CN107036570A CN201710357826.7A CN201710357826A CN107036570A CN 107036570 A CN107036570 A CN 107036570A CN 201710357826 A CN201710357826 A CN 201710357826A CN 107036570 A CN107036570 A CN 107036570A
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- Prior art keywords
- guiding ruler
- measuring instrument
- lower guiding
- cylindrical bar
- closing piece
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/22—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Optical Transform (AREA)
Abstract
The invention discloses a kind of angel measuring instrument, including：Lower guiding ruler；Upper guiding ruler；Locking device, locking device includes cylindrical bar and closing piece, and cylindrical bar is fixedly connected on guiding ruler, and closing piece is slidably disposed on lower guiding ruler, and lower guiding ruler can be locked together by closing piece and being connected together for cylindrical bar with upper guiding ruler；Angle indicating device, the angle scale of angle indicating device is fixedly connected on lower guiding ruler, and the pointer of angle indicating device is fixedly connected on guiding ruler；Torsion spring, torsion spring is set in the rotary shaft of guiding ruler, and the two ends of torsion spring are kept out on upper guiding ruler and lower guiding ruler respectively；Incremental optical-electricity encoder, the shell of incremental optical-electricity encoder is fixedly connected with lower guiding ruler, and the shaft core of incremental optical-electricity encoder is connected with the rotary shaft of upper guiding ruler；Controller, controller is connected with incremental optical-electricity encoder communication.Mechanical measurement reading of the present invention and electronical reading and deposit and record data can be facilitated in measurement process, it is easy to use.
Description
Technical field
The present invention relates to a kind of angel measuring instrument.
Background technology
Existing angel measuring instrument includes lower guiding ruler, upper guiding ruler and angle indicating device, one end of upper guiding ruler and lower guiding ruler
One end be articulated, the angle scale of the angle indicating device is fixedly connected on the lower guiding ruler, and the angle is indicated
The pointer of device is fixedly connected on the upper guiding ruler, in use, two hands are read after fixing lower guiding ruler and upper guiding ruler respectively
Measuring instrument is packed up after the completion of number, reading and carries out record data again, if forgetting or not remembering clearly to be accomplished by remeasuring, during waste
Between, if hand occurs firmly not enough it is also possible to measurement result occur inaccurate, otherwise existing measuring instrument only has machinery
Measurement, otherwise only electronical reading, needs to look for instrument or equipment in use for some time only with the measuring instrument of electronical reading
It is corrected, if data appearance mistake is not found that danger perhaps can be caused in time in detection process.
The content of the invention
In view of the above-mentioned problems, the present invention provides a kind of mechanical measurement reading and electronical reading and deposited and can in measurement process
To facilitate record data, angel measuring instrument easy to use.
To achieve the above object, the present invention provides following technical scheme：
A kind of angel measuring instrument, including：Lower guiding ruler；
Upper guiding ruler, the right-hand member of the upper guiding ruler is articulated on the right-hand member of the lower guiding ruler；
Locking device, the locking device is arranged between the lower guiding ruler and the upper guiding ruler, the locking device bag
Cylindrical bar, big spring and closing piece are included, the cylindrical bar is fixedly connected on the upper guiding ruler, and the lower end of the big spring is arranged on
On the lower guiding ruler, the closing piece is slidably disposed on the lower guiding ruler, and the lower guiding ruler can pass through the closing piece and institute
Being connected together for cylindrical bar is stated to lock together with the upper guiding ruler, and the upper end of the big spring is kept out in the cylindrical bar
On periphery；
Angle indicating device, the angle indicating device includes angle scale and pointer, and the angle scale is fixedly connected on institute
State on lower guiding ruler, the pointer is fixedly connected on the upper guiding ruler；
Torsion spring, the torsion spring is set in the rotary shaft of the upper guiding ruler, and one end of the torsion spring is kept out on described
On guiding ruler, the other end of the torsion spring is kept out on the lower guiding ruler；
Incremental optical-electricity encoder, the shell of the incremental optical-electricity encoder is fixedly connected with the lower guiding ruler, and institute
The shaft core for stating incremental optical-electricity encoder is connected with the rotary shaft of the upper guiding ruler；
Controller, the controller is connected with incremental optical-electricity encoder communication；
In use, first keeping out the lateral surface of the lower guiding ruler in a plane, the locking device is then operated to make institute
State guiding ruler to separate with the lower guiding ruler unblock, the upper guiding ruler makes guiding ruler on described after rotating in the presence of the torsion spring
Lateral surface is kept out in another plane, and the pointer points to a certain graduation position of the angle scale, while the controller is defeated
Go out the angle value of the incremental optical-electricity encoder detection.
Further, the controller is by pulse shaper, main controller circuit, LED digital pipe display circuits, button
Circuit, 5V power circuits and 12V power circuits composition.
Further, the lower guiding ruler includes infrabasal plate, Z-shaped plate and lower connecting block, and the Z-shaped plate is fixedly installed on described
On the side of infrabasal plate, and the front end of the Z-shaped plate extends to the upper guiding ruler, the lower connecting block be fixedly installed on it is described under
On the right-hand member of substrate, and the shell of the incremental optical-electricity encoder is fixedly connected with the lower connecting block.
Further, the upper guiding ruler also includes upper substrate, Z-shaped plate and upper contiguous block, and the fixation of falling Z-shaped plate is set
Put on the side of the upper substrate, and the front end of the Z-shaped plate extends to the lower guiding ruler, the upper contiguous block, which is fixed, to be set
Put on the right-hand member of the upper substrate, the rotary shaft is located on the upper contiguous block.
Further, the locking device also includes a connecting rod, and the cylindrical bar is connected to described by the connecting rod
On the medial surface of upper substrate, the axis of the cylindrical bar and the axis of the rotary shaft are parallel to each other.
Further, the front end of the closing piece has forms a holding tank between a pair of tapered ends, a pair of tapered ends, wherein,
The lower surface of the tapered end is provided with a neck, and the two ends of the cylindrical bar can be connected together with a pair of necks respectively, while institute
Connecting rod is stated in the holding tank.
Further, the lower surface of the closing piece is provided with a guide block, and the guide block can be along on the infrabasal plate
Stopper slot slide, wherein, the two ends of the stopper slot extend to the two ends of the infrabasal plate respectively.
Further, the rear end of the closing piece has a joining rod, the cantilever end of the joining rod with described
Via clearance on riser on substrate coordinates.
Further, the trailing flank of the upper substrate is provided with deceleration mould provided with several cavitys in the cavity
Block.
Further, the slowdown module include little spring and brake pad, the little spring be located at the brake pad with
Between the bottom surface of the cavity, wherein, connected between the front end face and side face of the brake pad using the transition of arc anchor ring.
It can be seen from above-mentioned technical scheme that, it is an advantage of the invention that：Mechanical measurement reading and electronical reading are simultaneously deposited,
It can mutually compare, correct；A hand can be carried out in measurement process, facilitate record data；And whole operation process is simple, side
Just.
In addition to objects, features and advantages described above, the present invention also has other objects, features and advantages.
Below with reference to figure, the present invention is further detailed explanation.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.In the accompanying drawings：
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of the locking device of the present invention.
Fig. 3 is Fig. 1 A-A sectional views.
Fig. 4 is the side view of the present invention.
Fig. 5 is the principle schematic of the controller of the present invention.
Fig. 6 is the principle schematic of the pulse shaper of the controller of the present invention.
Fig. 7 is the principle schematic of the main controller circuit of the controller of the present invention.
Fig. 8 is the principle schematic of the key circuit of the controller of the present invention.
Fig. 9 is the principle schematic of the 5V power circuits of the controller of the present invention.
Figure 10 is the principle schematic of the 12V power circuits of the controller of the present invention.
Figure 11 is the principle schematic of the LED digital pipe display circuits of the controller of the present invention.
Marked in figure：Lower guiding ruler 1, infrabasal plate 11, Z-shaped plate 12, block 13, support block 14, stopper slot 141, riser 15,
Lower connecting block 16, upper guiding ruler 2, upper substrate 21, cavity 211, little spring 212, brake pad 213, limited block 214, fall Z-shaped plate 22,
Upper contiguous block 23, rotary shaft 24, locking device 3, connecting rod 31, cylindrical bar 32, big spring 33, closing piece 34, tapered end 341, neck
3411st, holding tank 3412, guide block 342, joining rod 343, handle 344, back-moving spring 35, angle indicating device 4, angle scale 41,
Pointer 42, torsion spring 5, incremental optical-electricity encoder 6.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Referring to figs. 1 to Figure 11, a kind of angel measuring instrument as shown in Figure 1, including：Lower guiding ruler 1, upper guiding ruler 2, locking device
3rd, angle indicating device 4, torsion spring 5, incremental optical-electricity encoder 6 and controller, the right-hand member of the upper guiding ruler 2 be articulated in it is described under
On the right-hand member of guiding ruler 1；The locking device 3 is arranged between the lower guiding ruler 1 and the upper guiding ruler 2, and the upper guiding ruler 2 can
Locked together by the locking device 3 with the lower guiding ruler 1；The angle indicating device 4 includes angle scale 41 and pointer
42, the angle scale 41 is fixedly connected on the lower guiding ruler 1, and the pointer 42 is fixedly connected on the upper guiding ruler 2, its
In, the semicircular in shape of angle scale 41, the scale on the angle scale 41 is 0 °~180 °；The torsion spring 5 is set on described
In the rotary shaft 24 of guiding ruler 2, and one end of the torsion spring 5 is kept out on described on guiding ruler 2, and the other end of the torsion spring 5 is kept out
On the lower guiding ruler 1；The shell of the incremental optical-electricity encoder 6 is fixedly connected with the lower guiding ruler 1, and the increment type
The shaft core of photoelectric encoder 6 is connected with the rotary shaft 24 of the upper guiding ruler 2；The controller is encoded with the increment photoelectric
Device communication connection.
As shown in Figure 2, Figure 3 and Figure 4, the lower guiding ruler 1 includes infrabasal plate 11, Z-shaped plate 12, a pair of blocks 13, support blocks
14th, riser 15 and lower connecting block 16, the Z-shaped plate 12 is fixedly installed on the rear side of the infrabasal plate 11, and the Z-shaped plate 12
Front end extend to the upper guiding ruler 2, the block 13, support block 14 and riser 15 are fixedly installed on the infrabasal plate 11 successively
Medial surface on, the lower connecting block 16 is fixedly installed on the right-hand member of the infrabasal plate 11, and the increment photoelectric encode
The shell of device 6 is fixedly connected with the lower connecting block 16, wherein, the upper surface of the support block 14 is provided with a stopper slot 141,
And the two ends of the stopper slot 141 extend to the two ends of the infrabasal plate 11 respectively.
The upper guiding ruler 2 also includes upper substrate 21, Z-shaped plate 22 and upper contiguous block 23, and the Z-shaped plate 22 is fixedly installed
On the rear side of the upper substrate 21, and the front end of the Z-shaped plate 22 extends to the lower guiding ruler 1, the Z-shaped plate 12 and institute
Z-shaped plate 22 is stated down to be correspondingly arranged, when the pointer 42 points to 0 ° of position of the angle scale 41, the front end of the Z-shaped plate 12
Face and the front end face of the Z-shaped plate 22 coincide together, and the upper contiguous block 23 is fixedly installed on the right side of the upper substrate 21
On end, the rotary shaft 24 is located on the upper contiguous block 23, wherein, the leading flank of the upper substrate 21 is provided with a limited block
214, the U-shaped profile of the limited block 214, and the edge of the angle scale 41 extend into the U-lag of the limited block 214
It is interior, it is to avoid the testing result that beating and causing occur in the angle scale 41 when in use is inaccurate.
The trailing flank of the upper substrate 21 is provided with slowdown module provided with several cavitys 211 in the cavity 211,
Wherein, the slowdown module includes little spring 212 and brake pad 213, and the little spring 212 is located at the brake pad 213 and institute
Between the bottom surface for stating cavity 211, connected between the front end face and side face of the brake pad 213 using the transition of arc anchor ring.
When measuring wide-angle, first the lateral surface of the lower guiding ruler 1 is kept out in a plane, the locking is then operated
Device 3 makes the upper guiding ruler 2 be separated with the lower unblock of guiding ruler 1, after the upper guiding ruler 2 rotates in the presence of the torsion spring 5
The lateral surface of the upper guiding ruler 2 is set to keep out in another plane, the pointer 42 points to a certain scale position of the angle scale 41
Put；When measuring low-angle, the face of keeping out of the Z-shaped plate 12 is kept out in a plane, operates the locking device 3 to make on described
Guiding ruler 2 is separated with the lower unblock of guiding ruler 1, and the face of keeping out of the Z-shaped plate 22 is kept out in another plane, and the pointer 42 refers to
To a certain graduation position of the angle scale 41, due to it is described fall Z-shaped plate 22 compare thin, it is described fall Z-shaped plate 22 also not with
Another plane contact foregoing description brake pad 213 is in contact to slow down with the object comprising another plane, it is to avoid the Z-shaped plate
22 shocks are deformed influenceing measurement accuracy.
As shown in Figure 2 and Figure 4, the locking device 3 includes connecting rod 31, cylindrical bar 32, big spring 33 and closing piece 34, described
Cylindrical bar 32 is connected to by the connecting rod 31 on the medial surface of the upper substrate 21, the axis of the cylindrical bar 32 and the rotation
The axis of rotating shaft 24 is parallel to each other；The lower end of the big spring 33 is arranged on the lower guiding ruler 1, and the big spring 33 is located at
Between a pair of blocks 13；The closing piece 34 is slidably disposed in the support block 14, and the lower guiding ruler 1 can pass through the lock
Block 34 is locked together with being connected together for the cylindrical bar 32 with the upper guiding ruler 2, and the upper end of the big spring 33 is kept out
On the periphery of the cylindrical bar 32.
The front end of the closing piece 34 has forms a holding tank 3412 between a pair of tapered ends 341, a pair of tapered ends 341, wherein,
The lower surface of the tapered end 341 is provided with a neck 3411, and the two ends of the cylindrical bar 32 can block with a pair of necks 3411 respectively
Connection is closed, while the connecting rod 31 is located in the holding tank 3412；The lower surface of the closing piece 34 is provided with a guide block 342,
The guide block 342 can be slided along the stopper slot 141 on the infrabasal plate 11；The rear end of the closing piece 34 has a joining rod
343, the cantilever end of the joining rod 343 coordinates with the via clearance on the riser 15, the cantilever of the joining rod 343
End is provided with one handle 344, and the riser 15 is located between the middle part of the closing piece 34 and the handle 344, the joining rod
A back-moving spring 35 is arranged with 343, the back-moving spring 35 is located between the middle part of the closing piece 34 and the riser 15.
In use, stirring the handle 344 closing piece 34 can be made to move right, the back-moving spring 35 makes the closing piece
34 are moved to the left reset, when the left end of the upper guiding ruler 2 and the left end of the lower guiding ruler 1, which are in released state, needs locking,
The right hand is stirred the closing piece 34 and moved to right, and the left end that left hand presses the upper guiding ruler 2 pushes the cylindrical bar 32, and the cylinder
Bar 32 is kept out on the big spring 33, and the right hand is unclamped, and the closing piece 34 is moved to left in the presence of the back-moving spring 35, and institute
State closing piece 34 from the fooled of cylindrical bar 32 to pass through, left hand unclamps, and the cylindrical bar 32 is in the presence of the big spring 33
Moving up makes the two ends of the cylindrical bar 32 be connected together respectively with a pair of necks 3411；When the upper guiding ruler 2 left end with it is described
The left end of lower guiding ruler 1 is in the lock state when needing separation, and stirring the closing piece 34 and moving to right makes the cylindrical bar 32 and the card
Groove 3411 is separated, and the upper guiding ruler 2 swings in the presence of the torsion spring 5 and measured, a hand in whole measurement process
It is convenient to record data in real time with regard to measuring instrument can be made stable.
When the upper guiding ruler 2 rotates incremental optical-electricity encoder 6 can be driven to work, while controller output is described
The angle value that incremental optical-electricity encoder 6 is detected, remote reading is convenient, can be compared when necessary with the reading of pointer 42,
The numerical value of the incremental optical-electricity encoder 6 is avoided mistake occur and can not be found in time.
As shown in figure 5, the controller by pulse shaper, main controller circuit, LED digital pipe display circuits, press
Key circuit, 5V power circuits and 12V power circuits composition.
As shown in fig. 6, pulse shaper is by interface P3, phase inverter 74HC04, input current-limiting resistance R16, input current limliting
Resistance R17, input current-limiting resistance R18 are constituted.The function of the circuit is the A phases, B phases, Z for sending incremental optical-electricity encoder 6
Mutually totally 3 road 12V rectangular pulse signals, are converted into 5V rectangular pulse signal, export to main controller circuit, since calculate angle
Value.
As shown in fig. 7, main controller circuit is by AVR single chip Atmega8L, 8 megahertzs of quartz oscillators, corrections
Electrification reset circuit that electric capacity C1, corrective capacity C2, I SP download interfaces, R15 and C13 are constituted, decoupling capacitance C3, decoupling capacitance
C4,8 current-limiting resistances are constituted.The function of the circuit is that the pulse signal that pulse shaper is sent is received in the way of interruption,
Count and corresponding angle is conversed after pulse number, single-chip microcomputer controls LED digital pipe display circuits by input/output port
Corresponding angle value is shown, single-chip microcomputer is by detecting the level state of input/output port so as to detect whether key circuit has
Function key is pressed, and I SP download interfaces realize download online program.
As shown in figure 11, LED digital pipe display circuits are by 6 common anode type LED charactrons, 6 driving triodes 8550,6
Individual current-limiting resistance is constituted.The function of the circuit is to complete angle under the control of single-chip microcomputer in main controller circuit to show.
As shown in figure 8, key circuit is made up of touch key S1 and pull-up resistor R19.The function of the circuit be by with
The mechanical action of family button is converted into the single-chip microcomputer that electric signal is delivered in main controller circuit, so that the instruction for completing user is defeated
Enter.
As shown in figure 9,5V power circuits are by interface P1,4 commutation diode 1N4007, filter capacitor C5 and C6, decouplings
Electric capacity C7 and C8, three terminal regulator LM78L05 are constituted.The function of the circuit is that the 5V that P1 alternating voltage is converted into stabilization is straight
Stream voltage is main controller circuit, LED digital pipe display circuits, key circuit provide electric energy.
As shown in Figure 10,12V power circuits by interface P2,4 commutation diode 1N4007, filter capacitor C9 and C11, move back
Coupling electric capacity C10 and C12, three terminal regulator L7812CV are constituted.The function of the circuit is to provide electric energy for pulse shaper
The preferred embodiments of the present invention are these are only, are not intended to limit the invention, for those skilled in the art
For member, the present invention can have various modifications and variations.Any modification within the spirit and principles of the invention, being made,
Equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
1. a kind of angel measuring instrument, it is characterised in that including：
Lower guiding ruler (1)；
Upper guiding ruler (2), the right-hand member of the upper guiding ruler (2) is articulated on the right-hand member of the lower guiding ruler (1)；
Locking device (3), the locking device (3) is arranged between the lower guiding ruler (1) and the upper guiding ruler (2), the lock
Tight device (3) includes cylindrical bar (32), big spring (33) and closing piece (34), and the cylindrical bar (32), which is fixedly connected on described, leans on
On chi (2), the lower end of the big spring (33) is arranged on the lower guiding ruler (1), and the closing piece (34) is slidably disposed on
On the lower guiding ruler (1), the lower guiding ruler (1) being connected together and institute by the closing piece (34) and the cylindrical bar (32)
Guiding ruler (2) is stated to lock together, and the upper end of the big spring (33) is kept out on the periphery of the cylindrical bar (32)；
Angle indicating device (4), the angle indicating device (4) includes angle scale (41) and pointer (42), the angle scale
(41) it is fixedly connected on the lower guiding ruler (1), the pointer (42) is fixedly connected on the upper guiding ruler (2)；
Torsion spring (5), the torsion spring (5) is set in the rotary shaft (24) of the upper guiding ruler (2), and one end of the torsion spring (5)
Keep out on described on guiding ruler (2), the other end of the torsion spring (5) is kept out on the lower guiding ruler (1)；
Incremental optical-electricity encoder (6), the shell of the incremental optical-electricity encoder (6) is fixedly connected with the lower guiding ruler (1),
And the shaft core of the incremental optical-electricity encoder (6) is connected with the rotary shaft (24) of the upper guiding ruler (2)；
Controller, the controller is connected with incremental optical-electricity encoder communication；
In use, first keeping out the lateral surface of the lower guiding ruler (1) in a plane, the locking device (3) is then operated to make
The upper guiding ruler (2) separates with lower guiding ruler (1) unblock, after the upper guiding ruler (2) rotates in the presence of the torsion spring (5)
The lateral surface of the upper guiding ruler (2) is set to keep out in another plane, the pointer (42) points to a certain of the angle scale (41)
Graduation position, while the controller exports the angle value of incremental optical-electricity encoder (6) detection.
2. angel measuring instrument according to claim 1, it is characterised in that the controller is by pulse shaper, master control
Device circuit processed, LED digital pipe display circuits, key circuit, 5V power circuits and 12V power circuits composition.
3. angel measuring instrument according to claim 1, it is characterised in that the lower guiding ruler (1) includes infrabasal plate (11), Z
Shape plate (12) and lower connecting block (16), the Z-shaped plate (12) are fixedly installed on the side of the infrabasal plate (11), and the Z
The front end of shape plate (12) extends to the upper guiding ruler (2), and the lower connecting block (16) is fixedly installed on the infrabasal plate (11)
On right-hand member, and the shell of the incremental optical-electricity encoder (6) is fixedly connected with the lower connecting block (16).
4. angel measuring instrument according to claim 3, it is characterised in that the upper guiding ruler (2) also include upper substrate (21),
Z-shaped plate (22) and upper contiguous block (23), it is described fall Z-shaped plate (22) be fixedly installed on the side of the upper substrate (21), and
The front end of the Z-shaped plate (22) extends to the lower guiding ruler (1), and the upper contiguous block (23) is fixedly installed on the upper substrate
(21) on right-hand member, the rotary shaft (24) is located on the upper contiguous block (23).
5. angel measuring instrument according to claim 4, it is characterised in that the locking device (3) also includes a connecting rod
(31), the cylindrical bar (32) is connected on the medial surface of the upper substrate (21) by the connecting rod (31), the cylindrical bar
(32) axis and the axis of the rotary shaft (24) are parallel to each other.
6. angel measuring instrument according to claim 5, it is characterised in that the front end of the closing piece (34) has a pair of tapered ends
(341) holding tank (3412), is formed between a pair of tapered ends (341), wherein, the lower surface of the tapered end (341) is provided with one
Neck (3411), the two ends of the cylindrical bar (32) can be connected together with a pair of necks (3411) respectively, while the connecting rod
(31) it is located in the holding tank (3412).
7. angel measuring instrument according to claim 6, it is characterised in that led provided with one lower surface of the closing piece (34)
Block (342), the guide block (342) can be slided along the stopper slot (141) on the infrabasal plate (11), wherein, it is described spacing
The two ends of groove (141) extend to the two ends of the infrabasal plate (11) respectively.
8. angel measuring instrument according to claim 7, it is characterised in that the rear end of the closing piece (34) has a joining rod
(343), the cantilever end of the joining rod (343) is matched somebody with somebody with the via clearance on the riser (15) on the infrabasal plate (11)
Close.
9. angel measuring instrument according to claim 4, it is characterised in that the upper substrate (21) if trailing flank provided with
In dry cavity (211), slowdown module is provided with the cavity (211).
10. angel measuring instrument according to claim 9, it is characterised in that the slowdown module include little spring (212) and
Brake pad (213), the little spring (212) is located between the brake pad (213) and the bottom surface of the cavity (211), wherein,
Connected between the front end face and side face of the brake pad (213) using the transition of arc anchor ring.
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|---|---|---|---|
| CN201710357826.7A CN107036570B (en) | 2017-05-19 | 2017-05-19 | A kind of angel measuring instrument |
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|---|---|---|---|
| CN201710357826.7A CN107036570B (en) | 2017-05-19 | 2017-05-19 | A kind of angel measuring instrument |
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| CN107036570B CN107036570B (en) | 2019-03-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108387765A (en) * | 2018-05-15 | 2018-08-10 | 浙江工贸职业技术学院 | A kind of Intelligent electric-energy metering electricity box |
| CN114295098A (en) * | 2022-01-13 | 2022-04-08 | 西安工业大学 | Building engineering measuring device based on photoelectric technology |
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| GB2379514A (en) * | 2001-09-11 | 2003-03-12 | Albert Frank Ellam | An adjustable squaring tool |
| US7526871B1 (en) * | 2008-04-10 | 2009-05-05 | Russell Chase | Precision machinist's square with indicator |
| KR101415108B1 (en) * | 2014-02-06 | 2014-07-04 | 코엔펌 주식회사 | Cutting angle measurement apparatus |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108387765A (en) * | 2018-05-15 | 2018-08-10 | 浙江工贸职业技术学院 | A kind of Intelligent electric-energy metering electricity box |
| CN108387765B (en) * | 2018-05-15 | 2020-06-09 | 浙江工贸职业技术学院 | Intelligent electric energy meter box |
| CN114295098A (en) * | 2022-01-13 | 2022-04-08 | 西安工业大学 | Building engineering measuring device based on photoelectric technology |
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