CN107063182A - Level detection device and a kind of floating body - Google Patents
Level detection device and a kind of floating body Download PDFInfo
- Publication number
- CN107063182A CN107063182A CN201710059369.3A CN201710059369A CN107063182A CN 107063182 A CN107063182 A CN 107063182A CN 201710059369 A CN201710059369 A CN 201710059369A CN 107063182 A CN107063182 A CN 107063182A
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- ball
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- sliding block
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- 238000001514 detection method Methods 0.000 title claims abstract description 52
- 238000007667 floating Methods 0.000 title claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 230000009471 action Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000004044 response Effects 0.000 abstract description 3
- 230000001960 triggered effect Effects 0.000 abstract description 3
- 230000005484 gravity Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 4
- 244000309464 bull Species 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000009189 diving Effects 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 210000000476 body water Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
- G05D1/08—Control of attitude, i.e. control of roll, pitch, or yaw
- G05D1/0875—Control of attitude, i.e. control of roll, pitch, or yaw specially adapted to water vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
- B63B39/02—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by displacement of masses
- B63B39/03—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by displacement of masses by transferring liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
- B63G8/00—Underwater vessels, e.g. submarines; Equipment specially adapted therefor
- B63G8/14—Control of attitude or depth
- B63G8/26—Trimming equipment
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
- G05D1/08—Control of attitude, i.e. control of roll, pitch, or yaw
Landscapes
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Aviation & Aerospace Engineering (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Toys (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Level Indicators Using A Float (AREA)
Abstract
The invention discloses a kind of level detection device and a kind of floating body, it is characterized in that support is connected with the motor of an axis and platform parallel, motor shaft head is fixedly connected with the swingle vertical with its axis, swingle is provided with the chute vertical with electrical axis, a sliding block is fitted with the chute of swingle free end, connected between sliding block and swingle rotation center end by elastic body, sliding block external end head leans out chute and is connected with ball；The both sides of electrical axis direction ball are provided with limiting plate.When tilting to a certain extent, one in normality vertical line both sides switch it is close to minimum point, and triggered by ball, switch, which will start, sends signal, reaction unit by switch control will be acted in time, the posture of equipment where control and stabilized platform, makes its holding level, and the present apparatus, which has, automatically generates generation control signal, stable, response timely advantage.
Description
The application be invention and created name be level detection device, the applying date be July 3, Application No. in 2015
The divisional application of 2015103891604 application for a patent for invention.
Technical field
The present invention relates to a kind of balance detecting device and the equipment for being provided with the device, more particularly to a kind of level detection
Device and the floating body with the device.
Background technology
When equipping operation, it is often necessary to which the running status to equipment is monitored, and makes control according to state change
Reaction, the monitoring of such as horizontal level, in the operation of the floating body such as steamer, diving outfit equipment or model be it is very crucial,
Existing bascule is that horizontality can be indicated, can not produce control signal, often results in control reaction
It is blunt, prevent equipment from when control well, still awaiting technology solution.
Floating body of the present invention is the object (such as steamer) for referring to floating on water surface, also refers to the moving object of underwater
(such as submarine).
The content of the invention
In order to solve the above problems, the invention provides a kind of level detection device.
The technical solution adopted by the present invention is：A kind of level detection device, it is characterised in that including a platform, consolidates on platform
Surely a support is connected, support is connected with the motor of an axis and platform parallel, and motor shaft head is fixedly connected with vertical with its axis
Swingle, swingle is provided with the chute vertical with electrical axis, is fitted with a sliding block, sliding block in the chute of swingle free end
It is connected between swingle rotation center end by elastic body, sliding block external end head leans out chute and is connected with ball；Motor rotates to be formed
Stable to rotate, sliding block overcomes and moved outside the elastic force of elastic body under the action of the centrifugal force, and sliding block is inner in rotation is in chute all the time,
Ball possesses spacing with swingle outer end all the time in rotation, and a rotational trajectory is produced during ball rotation, and device has one and rotational trajectory
Intersecting, intersecting with electrical axis, vertical with platform normality vertical line, the rotation of normality vertical line and the ball under plateau levels state
The intersection point of transition mark rotates close platform side on the outside of low spot, rotational trajectory for normality and is provided with detection circular arc, detects the circle of circular arc
The heart is on electrical axis, and normality vertical line both sides are arranged with the switch along detection circular arc distribution, and switch is fixedly connected on support
On, ball possesses spacing along rotational trajectory rotation with switch under plateau levels state, and ball is using motor shaft as the center of circle, with the center of circle to normality
The line segment of rotation low spot moves in a circle for radius and can trigger each switch；The both sides of electrical axis direction ball are provided with limiting plate.
Further, per side, switch is two or more to the normality vertical line.
Further, the level detection device is two, and two level detection device electrical axis are vertical.
Further, the swingle is provided with balancing weight.
Further, the quality of the ball is 20 grams.
Further, the quality of the ball is 30 grams.
Further, the quality of the ball is 40 grams.
Further, the quality of the ball is 50 grams.
A kind of floating body with level detection device, its feature is fixedly connected on inside floating body in the platform, drift
Water tank is respectively equipped with before and after inside floating body horizontal equilibrium state lower platform level, floating body, forward and backward water tank is connected to
Pump, pump is controlled by the switch of level detection device,
The platform is a kind of platform of level detection device, and level detection device includes fixed on a platform, platform connect
A support is connect, support is connected with the motor of an axis and platform parallel, and motor shaft head is fixedly connected with the rotation vertical with its axis
Bull stick, swingle, which is provided with the chute vertical with electrical axis, swingle free end chute, is fitted with a sliding block, sliding block and rotation
Bull stick rotation center is connected between end by elastic body, and sliding block external end head leans out chute and is connected with ball；Motor rotates to form stabilization
Rotate, sliding block overcomes and moved outside the elastic force of elastic body under the action of the centrifugal force, sliding block is inner in rotation is in chute all the time, rotation
Middle ball possesses spacing with swingle outer end all the time, and a rotational trajectory is produced during ball rotation, and device has one to intersect with rotational trajectory
, intersect with electrical axis, vertical with platform normality vertical line, the rotation rail of normality vertical line and the ball under plateau levels state
The intersection point of mark is that normality is rotated on the outside of low spot, rotational trajectory close to platform side provided with detection circular arc, detects the circle centre position of circular arc
In on electrical axis, normality vertical line both sides are arranged with the switch along detection circular arc distribution, and switch is fixedly connected on support, is put down
Ball possesses spacing along rotational trajectory rotation with switch under platform horizontality, and ball is rotated using motor shaft as the center of circle with the center of circle to normality
The line segment of low spot moves in a circle for radius can trigger each switch；The both sides of electrical axis direction ball are provided with limiting plate.
Further, the tank connected pump of forward and backward water storage is two or more, and pump is connected with controller with switch room.
Further, left and right is respectively equipped with water tank inside the floating body, and left and right water tank is connected to pump, water
Flat detection means is two, and two level detection device electrical axis are vertical, and the left and right tank connected pump of water storage is by one of water
The switch control of flat detection means.
Further, the tank connected pump of front, rear, left and right water storage is two or more, and pump is connected with control with switch room
Device processed.
Further, the floating body is ship.
Further, the floating body is model ship.
Further, the floating body is submarine.
Further, the floating body is nuclear submarine.
Alternatively：The present invention denomination of invention can also be：A kind of ship with level detection device, one kind carry water
The model ship of flat detection means, a kind of submarine with level detection device, a kind of nuclear submarine with level detection device.
Alternatively：A kind of ship with level detection device, including hull, its feature are fixedly connected in the platform
Inside floating body, floating body horizontal equilibrium state lower platform level, floating body is respectively equipped with water tank, forward and backward storage before and after inside
Water pot is connected to pump, and pump is controlled by the switch of level detection device.
Similarly, a kind of model ship or submarine or nuclear submarine with level detection device, including model hull or diving
Ship body or nuclear submarine body, its feature are fixedly connected on inside floating body in the platform, under floating body horizontal equilibrium state
Water tank is respectively equipped with before and after inside plateau levels, floating body, forward and backward water tank is connected to pump, and pump is detected by level and filled
The switch control put.
The present invention is in use, motor driving swingle rotation, sliding block and ball overcome elastic body under the influence of centrifugal force
Elastic force is outwards skidded off, when motor stabilizing is under a certain speed, and club rotates along a fixed rotational trajectory, due to being slided
The gravity influence of block and ball, the rotational trajectory is not the circle using motor shaft as the center of circle, the gravity direction in ball and rotation all the time
The consistent when ball in bull stick direction is most distant and nearest from electrical axis, and the minimum point of rotational trajectory is that normality rotation is low during plateau levels
Point, when platform inclination, because the gravity direction of ball is that straight down, the minimum point of rotational trajectory deviates normality and hung down all the time
Line, when tilting to a certain extent, one in normality vertical line both sides switchs close to minimum point, and is triggered by ball, switch is just
It can start and send signal, the reaction unit by switch control will be acted in time, control the posture of simultaneously equipment where stabilized platform,
Make its holding level, the present apparatus, which has, automatically generates generation control signal, stable, response timely advantage.
Brief description of the drawings
Fig. 1 is the schematic perspective view of the embodiment of the present invention one.
Fig. 2 is the perspective diagram of the embodiment of the present invention one.
Fig. 3 is the structural representation of the embodiment of the present invention two.
Label title in figure：1 platform；2 supports；3 motors；4 swingles；5 chutes；6 sliding blocks；7 springs；8 balls；9 balancing weights；
10 rotational trajectories；11 normality vertical lines；12 detection circular arcs；13 switches；14 limiting plates.
Embodiment
As shown in Figure 1, 2, the level detection device is provided with a platform 1, platform and is fixedly connected with one the embodiment of the present invention one
Support 2, support is connected with the motor 3 of an axis and platform parallel, and motor shaft head is fixedly connected with the rotation vertical with its axis
Bar 4, swingle is provided with the chute 5 vertical with electrical axis, is fitted with a sliding block 6 in the chute of swingle free end, sliding block with
Swingle rotation center is connected between end by elastic body, and elastic body can be spring or elastic force lacing wire, and the present embodiment is spring 7,
Sliding block external end head leans out chute and is connected with ball 8, and swingle is provided with balancing weight 9 on motor shaft opposite side, stresses motor shaft two
Amount tends to balance；Motor rotates to form steady rotation speed, and sliding block overcomes and moved outside the elastic force of spring under the action of the centrifugal force, rotation
Middle sliding block is inner to be in chute all the time, and ball possesses spacing with swingle outer end all the time in rotation, and one is produced during ball rotation and is rotated
Track 10, due to being influenceed by the gravity of sliding block and ball, the rotational trajectory is not the circle using motor shaft as the center of circle, all the time in ball
Gravity direction it is consistent with swingle direction Shi Houqiu it is most distant and nearest from electrical axis, device has one and rotational trajectory phase
Handing over, intersecting with electrical axis, vertical with platform normality vertical line 11, the rotation of normality vertical line and the ball under plateau levels state
The intersection point of transition mark rotates low spot for normality, and in plateau levels, normality rotation low spot is the minimum point of rotational trajectory, rotation rail
Close to platform side provided with detection circular arc 12 on the outside of mark, the center of circle of detection circular arc is on electrical axis, normality vertical line both sides pair
Claim to be provided with the switch 13 along detection circular arc distribution, switch is fixedly connected on support, and ball is along rotational trajectory under plateau levels state
Rotation possesses spacing with switch, and ball is using motor shaft as the center of circle, and the line segment that low spot is rotated using the center of circle to normality does circumference fortune as radius
It is dynamic to trigger each switch；The both sides of electrical axis direction ball are provided with limiting plate 14, it is ensured that face and motor shaft where rotational trajectory
Line is vertical, and switch is travel switch in figure, can be also magnetic induction switch, optoelectronic switch or ball directly as a conduction
Contact.The present embodiment is in use, motor driving swingle rotation, sliding block and ball overcome the bullet of elastic body under the influence of centrifugal force
Power is outwards skidded off, when motor stabilizing is under a certain speed, and club rotates along a fixed rotational trajectory, due to by sliding block
Influenceed with the gravity of ball, the rotational trajectory is not the circle using motor shaft as the center of circle, the gravity direction in ball and rotation all the time
The consistent when ball in bar direction is most distant and nearest from electrical axis, and the minimum point of rotational trajectory is that normality rotation is low during plateau levels
Point, when platform inclination, because the gravity direction of ball is that straight down, the minimum point of rotational trajectory deviates normality and hung down all the time
Line, when tilting to a certain extent, one in normality vertical line both sides switchs close to minimum point, and is triggered by ball, switch is just
It can start and send signal, the reaction unit by switch control will be acted in time, control the posture of simultaneously equipment where stabilized platform,
Make its holding level, the present apparatus, which has, automatically generates generation control signal, stable, response timely advantage.
During implementation, per side, switch is two or more to normality vertical line, it is possible to achieve difference tilts the signal prompt of rank.
During implementation, device can be two, and two level detection device electrical axis are vertical, can detect in two vertical direction
Inclination.
Embodiment two, one carries the floating body of level detection device, and level detection device platform is fixedly connected on floating body
In inside, such as ship, submarine equipment or model, floating body horizontal equilibrium state lower platform is also at horizontality, floating body
Water tank is respectively equipped with before and after internal, balance of plant is maintained as counterweight, forward and backward water tank is connected to pump, and pump is by level
The switch control of detection means, switch starts pump after level detection device is acted, and can start a pump row or water filling, make
Floating body tends to balance, or starts the pump of forward and backward water tank simultaneously, and a draining a, water filling can make floating body faster
Tend to balance.
During implementation, normality vertical line per side switch be two or more when, the forward and backward attachable pump of water tank can for two with
On, pump and switch room are connected with controller, can more different inclinations rank startup varying number pump, quick regulation, such as
Shown in Fig. 3.
During implementation, inside floating body also can left and right be respectively equipped with water tank, left and right water tank is connected to pump, level
Detection means is two, and two level detection device electrical axis are vertical, and the left and right tank connected pump of water storage is by one of level
The switch control of detection means；Can also be further, water storage tank connected pump in front, rear, left and right is two or more, and pump is with opening
Controller, quick regulation are connected between pass.
Also need to having for explanation：Inclined degree is can also indicate that with a hanger, why not with a weight conduct
Detection meansReason is：Weight indicates that the efficiency of minimum point is too low：When run-off the straight, weight：1, it is necessary to which one longer
Time reach new nadir, or/and 2, weight is reached after new minimum point, to be swung.Water of the present invention
Flat detection means quick rotation, the frequency of detecting minimum point can be very high, moreover, will not swing, retrieval precision and frequency
Significantly larger than Weight type detection means.In addition：Fine rule used in weight cannot substantially extend, and weight is not apart from the length of suspension point
Become, length of the ball 8 away from motor shaft of the present invention is change, moreover, just having extreme length in vertical position.
Motor shaft head is fixedly connected with the swingle 4 vertical with its axis, and swingle is provided with vertical with electrical axis
Chute 5, such technical characteristic can greatly improve the precision of detection, and reason is：Spring 7 and ball 8 have the intrinsic frequency of vibration
F1, motor, which is rotated, specific frequency f2, because f2 and f1 are inconsistent, if without chute 5 and swingle 4, being easy for causing
Winding and the confusion of detection frequency.There are a chute 5 and swingle 4, the diriven motion of ball 8, in other words, the technology that chute is solved
Problem or the technique effect reached：1, prevent winding.2, detection frequency is defined as motor rotation frequency.
It is only present pre-ferred embodiments in summary, all equivalent modification done according to the application and prior art additions are equal
It is considered as the technology of the present invention category.
Claims (2)
1. a kind of level detection device, it is characterised in that including a platform, is fixedly connected with a support on platform, support is connected with one
The motor of axis and platform parallel, motor shaft head is fixedly connected with the swingle vertical with its axis, and swingle is provided with and electricity
A sliding block is fitted with the vertical chute of arbor line, swingle free end chute, is led between sliding block and swingle rotation center end
Elastic body connection is crossed, sliding block external end head leans out chute and is connected with ball；Motor rotates to form stable rotation, slides under the action of the centrifugal force
Block overcomes to be moved outside the elastic force of elastic body, and sliding block is inner all the time in chute in rotation, in rotation ball all the time with swingle outer end
Possess spacing, produce a rotational trajectory during ball rotation, device have it is that one intersect with rotational trajectory and that electrical axis are intersecting,
The intersection point of the normality vertical line vertical with platform, normality vertical line and the rotational trajectory of the ball under plateau levels state rotates low for normality
Close to platform side provided with detection circular arc on the outside of point, rotational trajectory, the center of circle of detection circular arc is on electrical axis, normality vertical line
Both sides are arranged with the switch along detection circular arc distribution, and switch is fixedly connected on support, ball edge rotation under plateau levels state
Track rotates possesses spacing with switch, and ball is using motor shaft as the center of circle, and the line segment that low spot is rotated using the center of circle to normality does circle as radius
Zhou Yundong can trigger each switch；The both sides of electrical axis direction ball are provided with limiting plate,
The level detection device is two, and two level detection device electrical axis are vertical.
2. a kind of floating body, it is characterised in that：Water tank is respectively equipped with before and after inside floating body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710059369.3A CN107063182B (en) | 2015-07-03 | 2015-07-03 | Level detection device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510389160.4A CN104949653B (en) | 2015-07-03 | 2015-07-03 | level detection device |
| CN201710059369.3A CN107063182B (en) | 2015-07-03 | 2015-07-03 | Level detection device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510389160.4A Division CN104949653B (en) | 2015-07-03 | 2015-07-03 | level detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107063182A true CN107063182A (en) | 2017-08-18 |
| CN107063182B CN107063182B (en) | 2019-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710059372.5A Active CN107065903B (en) | 2015-07-03 | 2015-07-03 | Level detection device |
| CN201510389160.4A Active CN104949653B (en) | 2015-07-03 | 2015-07-03 | level detection device |
| CN201710059369.3A Active CN107063182B (en) | 2015-07-03 | 2015-07-03 | Level detection device |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710059372.5A Active CN107065903B (en) | 2015-07-03 | 2015-07-03 | Level detection device |
| CN201510389160.4A Active CN104949653B (en) | 2015-07-03 | 2015-07-03 | level detection device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107065903B (en) * | 2015-07-03 | 2020-03-24 | 诸暨市枫桥天竺五金油漆店 | Level detection device |
| CN113721167B (en) * | 2021-09-08 | 2022-05-27 | 浙江日新电气有限公司 | Transformer voiceprint vibration detection system based on Internet of things architecture |
Citations (4)
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| CN101476551A (en) * | 2009-01-20 | 2009-07-08 | 绳季清 | Apparatus for converting gravity force into power |
| CN103776423A (en) * | 2014-02-20 | 2014-05-07 | 湖南科技学院 | High-precision levelness detector |
| CN104132645A (en) * | 2014-07-24 | 2014-11-05 | 甬港现代工程有限公司 | Building slope detector |
| CN104443324A (en) * | 2014-08-06 | 2015-03-25 | 刘光 | Submarine and buoyancy tube |
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|---|---|---|---|---|
| GB1143806A (en) * | 1966-08-04 | |||
| FR2484636A1 (en) * | 1980-06-11 | 1981-12-18 | Brissonneau & Lotz | LEVEL DETECTOR AND ITS APPLICATION TO A GRIPPING DEVICE FOR CONTAINER OR THE LIKE |
| CN2753084Y (en) * | 2004-07-09 | 2006-01-18 | 王玉石 | Earphone with posture prompting function |
| CN101078623B (en) * | 2006-05-26 | 2010-05-12 | 南京德朔实业有限公司 | Self-levelling straight line laser and its control method |
| CN101762260B (en) * | 2009-12-31 | 2012-05-09 | 合肥工业大学 | Large-scale turning axle verticality detection device and method |
| CN201731876U (en) * | 2010-01-16 | 2011-02-02 | 熊清远 | Horizontal tilt alarm |
| CN102140858B (en) * | 2011-01-18 | 2013-10-23 | 邹海 | Multifunctional rotating life-saving device |
| CN202351703U (en) * | 2011-10-10 | 2012-07-25 | 北京工业大学 | Single-wheel self-balancing robot system |
| CN103594406B (en) * | 2013-11-05 | 2016-08-24 | 中国电子科技集团公司第四十五研究所 | Self-centering positioning chuck and centering positioning method of semiconductor wafer |
| CN104132646B (en) * | 2014-07-28 | 2016-03-30 | 鞍钢集团矿业公司 | Inclination angle monitoring sensor |
| CN107065903B (en) * | 2015-07-03 | 2020-03-24 | 诸暨市枫桥天竺五金油漆店 | Level detection device |
-
2015
- 2015-07-03 CN CN201710059372.5A patent/CN107065903B/en active Active
- 2015-07-03 CN CN201510389160.4A patent/CN104949653B/en active Active
- 2015-07-03 CN CN201710059369.3A patent/CN107063182B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476551A (en) * | 2009-01-20 | 2009-07-08 | 绳季清 | Apparatus for converting gravity force into power |
| CN103776423A (en) * | 2014-02-20 | 2014-05-07 | 湖南科技学院 | High-precision levelness detector |
| CN104132645A (en) * | 2014-07-24 | 2014-11-05 | 甬港现代工程有限公司 | Building slope detector |
| CN104443324A (en) * | 2014-08-06 | 2015-03-25 | 刘光 | Submarine and buoyancy tube |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107065903B (en) | 2020-03-24 |
| CN104949653A (en) | 2015-09-30 |
| CN107065903A (en) | 2017-08-18 |
| CN107063182B (en) | 2019-07-16 |
| CN104949653B (en) | 2017-03-15 |
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