CN111648215A - Municipal construction blind road brick is laid and is used brick body levelness detection auxiliary device - Google Patents
Municipal construction blind road brick is laid and is used brick body levelness detection auxiliary device Download PDFInfo
- Publication number
- CN111648215A CN111648215A CN202010540373.3A CN202010540373A CN111648215A CN 111648215 A CN111648215 A CN 111648215A CN 202010540373 A CN202010540373 A CN 202010540373A CN 111648215 A CN111648215 A CN 111648215A
- Authority
- CN
- China
- Prior art keywords
- block
- fixedly connected
- municipal construction
- spring
- brick body
- 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.)
- Withdrawn
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/01—Devices or auxiliary means for setting-out or checking the configuration of new surfacing, e.g. templates, screed or reference line supports; Applications of apparatus for measuring, indicating, or recording the surface configuration of existing surfacing, e.g. profilographs
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The utility model provides a municipal construction blind road brick is laid and is used brick body levelness detection auxiliary device, relates to road technical field, which comprises a housin, the both sides inner wall fixedly connected with electromagnetism of casing top is one, and the inner wall fixedly connected with of casing is spring one of two symmetries of each other. This municipal construction blind road brick is laid and is used brick body levelness detection auxiliary device, cooperation through dielectric plate and resistance is used, when measuring the levelness, prevent the device on changeing the piece, the levelness of road can be by the pointer on the slider corresponding scale, when the relative area of positive plate and negative plate reduces the minimum when dielectric plate, the circuit voltage that makes through the negative plate is less than the minimum access voltage of resistance, explain the level, the slider is in the intermediate position, if not horizontal, dielectric plate can't reduce relative area to minimum, the slider takes place to remove under the effect of the different magnetism repulsion force of both sides electromagnetism, thereby reached the whether horizontally effect of audio-visual judgement, effectively improve and judge the basis, reduce error.
Description
Technical Field
The invention relates to the technical field of roads, in particular to a brick body levelness detection auxiliary device for laying municipal construction blind road bricks.
Background
The history of human road construction is at least thousands of years, and the original society can be almost traced. No one can really say when or where the first road in the world is built, in ancient times, people often walk along the footprint of animals or the most labor-saving path, namely the path that others walk, and as a result, the place frequently trampled becomes a path, and the path gradually develops day by day and year, becoming a common road.
Present road construction is city construction's demand, and still can construct the road of special demand, for example like the blind road, the construction of blind road is mainly for the convenience of blind person's walking, so can detect often in laying the in-process that the blind road is laid whether level, trip by the road brick when in order to avoid leading to the blind person to walk, lead to the blind person to fall down, reduce the trip degree of difficulty of blind person, but at present when laying the blind road, adopt the naked eye to judge whether level of blind road, the error of visual observation is great, lead to often appearing the quality problems.
Therefore, we have provided a municipal construction blind sidewalk brick to lay and use brick body levelness detection auxiliary device to solve above problem, use through the cooperation of dielectric medium board and resistance, reached whether horizontally effect of audio-visual judgement, effectively improve and judge the basis, reduce the error, use through the cooperation of conducting block and sliding resistance, realized the removal of slider, reached whether horizontally effect of audio-visual judgement.
Disclosure of Invention
The invention adopts the following technical scheme for realizing the technical purpose: the utility model provides a municipal construction blind road brick lays and uses brick body levelness detection auxiliary device, including the casing, the both sides inner wall fixedly connected with electromagnetism one at casing top, the inner wall fixedly connected with two mutually symmetrical spring one of casing, the inboard fixedly connected with of spring one and the slider of the inner wall swing joint of casing, the both sides of slider are all fixedly connected with magnetic path one, the inner wall of casing and the bottom fixedly connected with positive plate near the slider, the bottom swing joint of casing has the turning block, the top inner wall fixedly connected with dielectric plate of turning block, the bottom inner wall fixedly connected with resistance of turning block, the bottom inner wall fixedly connected with of turning block has two mutually symmetrical electromagnetism two, the inner bottom wall fixedly connected with two mutually symmetrical spring two of turning block, the inboard fixedly connected with conducting block of spring two, the middle part fixedly connected with magnetic path two of conducting block, the middle part fixedly connected with of casing changes a pivot of swing joint, and the top inner wall fixedly connected with negative plate of pivot, the bottom fixedly connected with of pivot two symmetrical sliding resistance of each other, the bottom fixedly connected with gravity piece of commentaries on classics piece.
The invention has the following beneficial effects:
1. this municipal construction blind road brick is laid and is used brick body levelness detection auxiliary device, cooperation through dielectric plate and resistance is used, when measuring the levelness, prevent the device on changeing the piece, the levelness of road can be by the pointer on the slider to corresponding scale, when dielectric plate reduces the relative area of positive plate and negative plate minimum, make the circuit voltage through the negative plate be less than the minimum access voltage of resistance, explain the level, the slider is in the intermediate position, if not horizontal, dielectric plate can't reduce relative area to minimum, the slider takes place to remove under the effect of the different magnetism repulsion force of both sides electromagnetism, the pointer is to corresponding scale, thereby whether the effect of audio-visual judgement level has been reached, effectively improve and judge the basis, reduce the error.
2. This municipal construction blind road brick is laid and is used brick body levelness detection auxiliary device, cooperation through conducting block and sliding resistance is used, when the fragment of brick level, the conducting block not with sliding resistance electric connection, when the fragment of brick is not level, conducting block and sliding resistance electric connection this moment, and because the commentaries on classics piece slope, the sliding resistance that leads to both sides is inequality, thereby lead to an electromagnetism magnetism variation in size of both sides, lead to the slider to take place to remove under the effort of different magnetism, thereby the removal of slider has been realized, whether the effect of audio-visual judgement level has been reached.
Furthermore, the shell is made of a hard material and does not have conductivity and magnetic conductivity, scales are arranged on the top of the shell, the magnetism of the inner side of the first electromagnetic magnet is the same as that of the outer side of the first magnetic block, the first spring is a compression spring, and the diameter of the first spring is smaller than the height of the sliding block.
Further, the material of slider is stereoplasm high strength material and the front of slider is provided with the pointer, the material of magnetic block one is rubidium magnet material and the shape of magnetic block one is the cuboid form, the central angle of positive plate is the same with the central angle of dielectric plate and the size of positive plate is less than the size of casing.
The rotor is made of hard high-strength material, the rotor is circular, the central angle of the dielectric plate is the same as that of the negative plate, the resistor is a piezoresistor, and the minimum path voltage of the resistor is greater than the minimum circuit voltage of the negative plate.
Furthermore, the magnetism of the top of the second electromagnetic block is the same as that of the bottom of the second magnetic block, the second spring is an extension spring, the diameter of the second spring is smaller than that of the conductive block, the conductive block is made of copper materials, and the conductive block is cylindrical.
Further, the second magnetic block is made of a rubidium magnet material and is in a cuboid shape, the rotating shaft is made of a hard high-strength material and is in a cylindrical shape, and the resistance value of the sliding resistor is smaller when the sliding resistor is closer to the inner side.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged partial view of portion A of FIG. 1;
FIG. 3 is an enlarged partial view of the portion B of FIG. 1 according to the present invention;
FIG. 4 is a schematic diagram of the slider movement structure of the present invention;
FIG. 5 is an enlarged partial view of the portion C of FIG. 4 according to the present invention;
FIG. 6 is an enlarged partial view of the portion D in FIG. 4 according to the present invention.
In the figure: 1. a housing; 2. performing electromagnetism I; 3. a first spring; 4. a slider; 5. a first magnetic block; 6. a positive plate; 7. rotating the block; 8. a dielectric plate; 9. a resistance; 10. a second electromagnetic field; 11. a second spring; 12. a conductive block; 13. a second magnetic block; 14. a rotating shaft; 15. a negative plate; 16. a sliding resistance; 17. a gravity block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, an auxiliary device for detecting levelness of a brick body for laying a municipal construction blind sidewalk brick comprises a shell 1, wherein the shell 1 plays a role of fixing each part, the shell 1 is made of a hard material, the shell 1 does not have conductivity and magnetic conductivity, scales are arranged at the top of the shell 1, the magnetism of the inner side of an electromagnet 1 is the same as that of the outer side of a magnet block 5, the spring 3 is a compression spring, the diameter of the spring 3 is smaller than the height of the slider 4, the inner walls of the two sides of the top of the shell 1 are fixedly connected with the electromagnet 2, the electromagnet 2 plays a role of magnetic transmission, the inner wall of the shell 1 is fixedly connected with two mutually symmetrical springs 3, the spring 3 plays a role of moving the slider 4 to the middle, the inner side of the spring 3 is fixedly connected with the slider 4 movably connected with the inner wall of the shell 1, the slider 4 plays a role of transmission, the material of the sliding block 4 is a hard high-strength material, the front face of the sliding block 4 is provided with a pointer, the material of the magnetic block I5 is a rubidium magnet material, the shape of the magnetic block I5 is cuboid, the central angle of the positive plate 6 is the same as that of the dielectric plate 8, the size of the positive plate 6 is smaller than that of the shell 1, the two sides of the sliding block 4 are fixedly connected with the magnetic block I5, the magnetic block I5 plays a role in magnetic transmission, and the bottom, close to the sliding block 4, of the inner wall of the shell 1 is fixedly connected with the positive plate 6;
the capacitance decision is as follows:
in the formula:
c: a capacitor;
: a dielectric constant;
s: the facing area, here the contact area between two semicircular polar plates;
k: an electrostatic force constant;
θ: angle of the two plates when moving.
A. If theta is increased, namely the contact area between the two semicircular pole plates is reduced, and the facing area S is reduced at the moment, then
The value of the medium capacitor C decreases, which means that the rotary block 7 deflects;
B. if θ is constant, i.e. two semicirclesThe contact area between the shape polar plates is not changed, and the opposite area S is not changed at the moment, then
The value of the medium capacitor C is unchanged, i.e. it indicates that the rotor 7 is deflected.
The bottom of the shell 1 is movably connected with a rotating block 7, the rotating block 7 plays a role in transmission, the rotating block 7 is made of a hard high-strength material, the rotating block 7 is in a ring shape, the central angle of a dielectric plate 8 is the same as that of a negative plate 15, a resistor 9 is a piezoresistor, the minimum path voltage of the resistor 9 is larger than the minimum circuit voltage passing through the negative plate 15, the dielectric plate 8 is fixedly connected to the inner wall of the top of the rotating block 7, the dielectric plate 8 plays a role in changing the relative area of the positive plate 6 and the negative plate 15, the resistor 9 is fixedly connected to the inner wall of the bottom of the rotating block 7, the resistor 9 plays a role in controlling the one-2-point-path communication condition of the first electromagnet, two mutually symmetrical second electromagnets 10 are fixedly connected to the inner wall of the bottom of the rotating block 7, the second electromagnets 10 start magnetic transmission, and the magnetism of the tops of the second electromagnets.
The spring II 11 is an extension spring, the diameter of the spring II 11 is smaller than that of the conductive block 12, the conductive block 12 is made of copper material, the conductive block 12 is cylindrical, the inner bottom wall of the rotary block 7 is fixedly connected with two mutually symmetrical spring II 11, the spring II 11 plays a role in contracting the conductive block 12 into the rotary block 7, the conductive block 12 is fixedly connected to the inner side of the spring II 11 and plays an electric connection role with the conductive block 12, the middle part of the conductive block 12 is fixedly connected with the magnetic block II 13, the magnetic block II 13 plays a magnetic transmission role, the magnetic block II 13 is made of rubidium magnet material, the magnetic block II 13 is rectangular, the rotating shaft 14 is made of hard high-strength material, the rotating shaft 14 is cylindrical, the smaller the resistance value of the sliding resistance 16 close to the inner side is, the middle part of the shell 1 is fixedly connected with the rotating shaft 14 movably connected with the rotary block 7, the rotating shaft 14 plays a role in facilitating rotation of the rotating block 7, the inner wall of the top of the rotating shaft 14 is fixedly connected with the negative plate 15, the bottom of the rotating shaft 14 is fixedly connected with two mutually symmetrical sliding resistors 16, the sliding resistors 16 play a role in adjusting the magnetic size of electromagnetism 2, the bottom of the rotating block 7 is fixedly connected with the gravity block 17, and the gravity block 17 plays a role in utilizing gravity to perform transmission.
The working principle is as follows: at the initial state, as shown in fig. 1, at this time, the electromagnet I2 is in a power-off state, the slider 4 is only under the action of the springs I3 at the two sides and is in the middle position, meanwhile, the conductive block 12 is contracted into the rotating block 7 under the action of the spring II 11, at this time, the conductive block 12 is not electrically connected with the sliding resistor 16, and the rotating block 7 keeps a vertically downward shape under the action of the gravity block 17;
during measurement, a power supply is turned on, the electromagnet II 10 is in a power-on state, the magnetic block II 13 is subjected to the action force of magnetic repulsion of the electromagnet II 10, the conductive block 12 is driven to extend inwards together, the conductive block 12 is electrically connected with the sliding resistor 16, when the brick is horizontal, the rotating block 7 can keep a vertically downward state under the action of the gravity block 17, the dielectric plate 8 reduces the relative area of the positive plate 6 and the negative plate 15 to the minimum, the circuit voltage passing through the negative plate 15 is smaller than the minimum path voltage of the resistor 9, the resistor 9 is in a circuit-breaking state at this time, the electromagnet I2 is in a circuit-breaking state, and the sliding block 4 is still in a middle position under the action of the spring I3;
when the brick is not horizontal, the rotating block 7 is still in a vertical state under the action of gravity of the gravity block 17, but at the moment, the relative area of the positive plate 6 and the negative plate 15 is increased by the dielectric plate 8, so that the circuit voltage passing through the negative plate 15 is greater than the minimum path voltage of the resistor 9, so that the electromagnet 2 is in a power-on state, and as the rotating block 7 rotates, the contact position of the conductive block 12 and the sliding resistor 16 is changed, the resistance value of the sliding resistor 16 at the high position is smaller than that of the sliding resistor 16 at the low position, and the magnetism of the electromagnet 2 at the high position is greater than that of the electromagnet 2 at the low position, so that the slider 4 moves to the low position under the repulsion action of the same property of the electromagnet 2, and the pointer on the slider 4 points to the corresponding scale to indicate how much the inclination to the low position, so that the judgment is more intuitive and clear.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a municipal construction blind road brick is laid and is used brick body levelness detection auxiliary device, includes casing (1), its characterized in that: the electromagnetic switch is characterized in that the inner walls of the two sides of the top of the shell (1) are fixedly connected with a first electromagnetic coil (2), the inner wall of the shell (1) is fixedly connected with two first springs (3) which are symmetrical to each other, the inner side of each first spring (3) is fixedly connected with a sliding block (4) which is movably connected with the inner wall of the shell (1), the two sides of each sliding block (4) are fixedly connected with a first magnetic block (5), the inner wall of the shell (1) is fixedly connected with a positive plate (6) which is close to the bottom of each sliding block (4), the bottom of the shell (1) is movably connected with a rotating block (7), the inner wall of the top of each rotating block (7) is fixedly connected with a dielectric plate (8), the inner wall of the bottom of each rotating block (7) is fixedly connected with a resistor (9), the inner wall of the bottom of each rotating block (, the inner side of the second spring (11) is fixedly connected with a conductive block (12), the middle of the conductive block (12) is fixedly connected with a magnetic block II (13), the middle of the shell (1) is fixedly connected with a rotating shaft (14) movably connected with a rotating block (7), the top inner wall of the rotating shaft (14) is fixedly connected with a negative plate (15), the bottom of the rotating shaft (14) is fixedly connected with two mutually symmetrical sliding resistors (16), and the bottom of the rotating block (7) is fixedly connected with a gravity block (17).
2. The auxiliary brick body levelness detection device for laying the municipal construction blind road bricks according to claim 1, wherein: the material of casing (1) is hard material and casing (1) does not have electric conductivity and magnetic conductivity, and the top of casing (1) is provided with the scale.
3. The auxiliary brick body levelness detection device for laying the municipal construction blind road bricks according to claim 1, wherein: the magnetism of the inner side of the first electromagnet (2) is the same as that of the outer side of the first magnetic block (5), the first spring (3) is a compression spring, and the diameter of the first spring (3) is smaller than the height of the sliding block (4).
4. The auxiliary brick body levelness detection device for laying the municipal construction blind road bricks according to claim 1, wherein: the slider (4) is made of hard high-strength materials, the front face of the slider (4) is provided with a pointer, the magnetic block I (5) is made of rubidium magnet materials, and the shape of the magnetic block I (5) is cuboid.
5. The auxiliary brick body levelness detection device for laying the municipal construction blind road bricks according to claim 1, wherein: the central angle of the positive plate (6) is the same as that of the dielectric plate (8), and the size of the positive plate (6) is smaller than that of the shell (1).
6. The auxiliary brick body levelness detection device for laying the municipal construction blind road bricks according to claim 1, wherein: the material of the rotating block (7) is hard high-strength material, the shape of the rotating block (7) is circular, the central angle of the dielectric plate (8) is the same as that of the negative plate (15), the resistor (9) is a piezoresistor, and the minimum path voltage of the resistor (9) is larger than the minimum circuit voltage passing through the negative plate (15).
7. The auxiliary brick body levelness detection device for laying the municipal construction blind road bricks according to claim 1, wherein: the magnetism of the top of the second electromagnet (10) is the same as that of the bottom of the second magnetic block (13), the second spring (11) is an extension spring, the diameter of the second spring (11) is smaller than that of the conductive block (12), the conductive block (12) is made of copper materials, and the conductive block (12) is cylindrical.
8. The auxiliary brick body levelness detection device for laying the municipal construction blind road bricks according to claim 1, wherein: the magnetic block II (13) is made of a rubidium magnet material, the shape of the magnetic block II (13) is cuboid, the rotating shaft (14) is made of a hard high-strength material, the rotating shaft (14) is cylindrical, and the resistance value of the sliding resistor (16) is smaller when the sliding resistor is closer to the inner side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010540373.3A CN111648215A (en) | 2020-06-15 | 2020-06-15 | Municipal construction blind road brick is laid and is used brick body levelness detection auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010540373.3A CN111648215A (en) | 2020-06-15 | 2020-06-15 | Municipal construction blind road brick is laid and is used brick body levelness detection auxiliary device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111648215A true CN111648215A (en) | 2020-09-11 |
Family
ID=72351398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010540373.3A Withdrawn CN111648215A (en) | 2020-06-15 | 2020-06-15 | Municipal construction blind road brick is laid and is used brick body levelness detection auxiliary device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111648215A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113818866A (en) * | 2021-11-24 | 2021-12-21 | 枣庄高新区立正安装工程有限公司 | All-round inclinometer |
| CN115354554A (en) * | 2022-09-15 | 2022-11-18 | 中交第四公路工程局有限公司 | Ground leveling device for house construction |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009041682A1 (en) * | 2007-09-28 | 2009-04-02 | Thk Co., Ltd. | Detecting device, and measuring device |
| CN208563062U (en) * | 2018-07-06 | 2019-03-01 | 四川正达检测技术有限责任公司 | A kind of digital smoothness measuring equipment |
| CN109612434A (en) * | 2018-11-26 | 2019-04-12 | 尧章铭 | A kind of ceramic tile levelness detection plate |
| CN110779494A (en) * | 2019-11-20 | 2020-02-11 | 程达江 | Detection equipment for building based on gravity and electromagnetic effect |
| CN111174693A (en) * | 2019-12-17 | 2020-05-19 | 金阳 | Surface flatness detection device for new material with capacitance variable control |
-
2020
- 2020-06-15 CN CN202010540373.3A patent/CN111648215A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009041682A1 (en) * | 2007-09-28 | 2009-04-02 | Thk Co., Ltd. | Detecting device, and measuring device |
| CN208563062U (en) * | 2018-07-06 | 2019-03-01 | 四川正达检测技术有限责任公司 | A kind of digital smoothness measuring equipment |
| CN109612434A (en) * | 2018-11-26 | 2019-04-12 | 尧章铭 | A kind of ceramic tile levelness detection plate |
| CN110779494A (en) * | 2019-11-20 | 2020-02-11 | 程达江 | Detection equipment for building based on gravity and electromagnetic effect |
| CN111174693A (en) * | 2019-12-17 | 2020-05-19 | 金阳 | Surface flatness detection device for new material with capacitance variable control |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113818866A (en) * | 2021-11-24 | 2021-12-21 | 枣庄高新区立正安装工程有限公司 | All-round inclinometer |
| CN115354554A (en) * | 2022-09-15 | 2022-11-18 | 中交第四公路工程局有限公司 | Ground leveling device for house construction |
| CN115354554B (en) * | 2022-09-15 | 2024-04-12 | 中交第四公路工程局有限公司 | Ground leveling device for building construction |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111648215A (en) | Municipal construction blind road brick is laid and is used brick body levelness detection auxiliary device | |
| CN202304820U (en) | Buoy type horizontal inclination angle measuring device | |
| CN111853136A (en) | Auxiliary leveling device for computer based on electrorheological fluid | |
| CN110793883A (en) | Liquid level cup mouth leveling device of density measuring equipment by liquid discharge method | |
| CN105891332B (en) | A kind of vehicle loaded densification degree detector and its method of multisensor | |
| CN107818887A (en) | A kind of intelligent electric meter | |
| CN103162717A (en) | Capacitive non-contact angular position sensor | |
| CN219915882U (en) | Lithium battery detection mechanism | |
| CN206595189U (en) | A kind of tilt induction switch | |
| CN206757452U (en) | A kind of condenser type knob controller | |
| CN205283508U (en) | Direct current electric tool's non -contact speed governing switch | |
| CN103175670A (en) | Impact testing system | |
| KR101209699B1 (en) | Apparatus for charging battery | |
| CN206490021U (en) | A kind of easy pin type switch of inclination | |
| CN205572464U (en) | Magnetic ball cuts with scissors robot | |
| CN110867916B (en) | Wireless charging system of transformer substation discharge source positioning robot | |
| CN210623052U (en) | KXJ series single-loop water pump water level controller | |
| CN203893916U (en) | Fuel level sensor with movable parallel pole plate and fixed parallel pole plate | |
| CN208430942U (en) | A kind of automatic sensing door | |
| CN207321083U (en) | A kind of stepping motor system and camera lens video camera capable of rotating and monitoring system | |
| CN112880793A (en) | Antifouling and electricity-saving electronic weighing scale | |
| CN203760376U (en) | Magnetic proximity switch having directional memory effect | |
| CN208938070U (en) | Self power generation mouse | |
| CN108645481A (en) | A kind of non-contact capacitance liquid-level detecting method | |
| CN105629331A (en) | Anti-wind weather sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200911 |