CN112133363A - Automatic change panel board protector - Google Patents
Automatic change panel board protector Download PDFInfo
- Publication number
- CN112133363A CN112133363A CN202010985875.7A CN202010985875A CN112133363A CN 112133363 A CN112133363 A CN 112133363A CN 202010985875 A CN202010985875 A CN 202010985875A CN 112133363 A CN112133363 A CN 112133363A
- Authority
- CN
- China
- Prior art keywords
- instrument
- clamping
- groove
- external thread
- operating rod
- 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.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G12—INSTRUMENT DETAILS
- G12B—CONSTRUCTIONAL DETAILS OF INSTRUMENTS, OR COMPARABLE DETAILS OF OTHER APPARATUS, NOT OTHERWISE PROVIDED FOR
- G12B9/00—Housing or supporting of instruments or other apparatus
- G12B9/02—Casings; Housings; Cabinets
- G12B9/04—Details, e.g. cover
Abstract
The invention provides an automatic instrument panel protection device, which comprises an instrument clamping plate; the utility model discloses a portable electronic instrument, including instrument card dress board, fixed plate, outer shield, wire. The instrument of being convenient for clamps at the instrument and clamps the inslot through fixture block down under the effect of spring props, and the installation and the dismantlement of instrument are more convenient, through rotating the taut steel wire of action bars or loosening the steel wire, adjust the angle that opens and shuts between instrument card dress board and the fixed plate, and then adjust the installation angle of instrument, enlarge the index on the instrument through the magnifying glass.
Description
Technical Field
The invention belongs to the technical field of instrument protection, and particularly relates to an automatic instrument panel protection device.
Background
In industrial automation production, various instrument panels are required to be installed for more convenient understanding of the operation conditions of the equipment, and the instrument panels are mostly circular and exposed outside, so that the observation is convenient.
If the application number is: in the patent cn202020387535.x, an improved industrial automation instrument panel guard is disclosed. The improved industrial automation instrument panel protection device comprises a placing groove, wherein the placing groove is formed in the top of the mounting fixture block; the instrument panel body is arranged in the placing groove; the top cover is hinged to the top of the mounting fixture block and is matched with the placing groove; the high-strength transparent glass is embedded on the top cover; the clamping groove is formed in the inner wall of one side of the placing groove, and the top of the clamping groove is provided with an opening; the clamping block is arranged in the clamping groove, and one side of the clamping block extends into the placing groove and is fixedly connected with the instrument panel body; and (5) fixing the structure. The utility model provides a modified industrial automation panel board protector has that the protection is effectual, fixed stable, and take out convenient advantage.
Based on the foregoing, traditional instrument protector structure is fairly simple, and the card dress board of instrument is also mostly fixed, can't carry out the adjustment of angle and remote looking over according to the use needs, and the instrument is changed also more troublesome when damaging in addition, consequently needs an instrument protector that can angle regulation and remote looking over.
Disclosure of Invention
In order to solve the technical problems, the invention provides an automatic instrument panel protection device, which aims to solve the problems that a clamping plate of an instrument is mostly fixed, angle adjustment and remote viewing cannot be performed according to use requirements, and the instrument is troublesome to replace when damaged.
The purpose and the effect of the automatic instrument panel protection device are achieved by the following specific technical means:
an automatic instrument panel protection device comprises an instrument clamping plate; the instrument clamping plate comprises a first clamping cylinder and a second clamping cylinder, wherein the front end of the instrument clamping plate is rotatably connected with the front end of a fixed plate, the rear end of the instrument clamping plate is connected with the fixed plate through two groups of springs, a steel wire is further connected to the bottom side of the rear end of the instrument clamping plate and is wound on an operating rod, the operating rod is rotatably inserted into the first clamping cylinder and the second clamping cylinder, an external thread adjusting rod is further sleeved at the front end of the operating rod and is connected with the inner side of the internal thread cylinder through threads on the outer side of the external thread adjusting rod in a meshed mode, two groups of instrument clamping grooves are further formed in the instrument clamping plate, instruments are respectively clamped in the instrument clamping grooves, an outer protective cover is further mounted on the instrument clamping plate, and the two groups of instrument clamping grooves are arranged on the inner side of the outer protective cover.
Furthermore, a gap is formed between the first clamping cylinders, the operating rod is further connected with a limiting baffle A and a limiting baffle B respectively, and the limiting baffle A and the limiting baffle B are attached to the end faces of the two sides of the gap on the first clamping cylinders respectively.
Furthermore, be equipped with spline structure on the front end periphery of action bars, be equipped with the spline draw-in groove in the hole of external screw thread regulation pole, and the external screw thread regulation pole passes through its inside spline draw-in groove slidable mounting in the front end outside of action bars.
Furthermore, two groups of aligned slots are formed in the inner wall of the instrument clamping groove, two groups of aligned lower clamping blocks are arranged at the lower end of the bottom of the instrument, and when the instrument is inserted into the instrument clamping groove, the lower clamping blocks are clamped into the slots in a sliding mode.
Furthermore, the lower end of the instrument clamping groove is also provided with a clamping ring groove, and the lower clamping block is clamped in the clamping ring groove.
Furthermore, a supporting spring is installed in the middle of the bottom side in the instrument clamping groove, the bottom end of the supporting spring is fixed to the inner side of the instrument clamping groove through a U-shaped retaining ring, and an upper buckling cover is sleeved at the top end of the supporting spring.
Further, the top of outer shroud rotates and is connected with flip, and it has two sets of magnifiers to inlay on flip, and the magnifying glass is counterpointed respectively and is established directly over the instrument clamps the groove, still installs the magnetic path adsorption strip respectively on flip and the outer shroud, and flip and outer shroud pass through the magnetic path adsorption strip and adsorb and be connected.
Furthermore, when the instrument is clamped in the instrument clamping groove through the lower clamping block, the supporting spring is in a compressed state.
The invention at least comprises the following beneficial effects:
1. according to the invention, the two sets of instrument clamping grooves are formed in the instrument clamping plate, so that the instrument can be conveniently inserted into the instrument clamping grooves through the lower clamping block and can be conveniently rotated when the lower clamping block enters the clamping ring groove, the instrument can be clamped in the instrument clamping grooves through the lower clamping block under the action of the supporting spring, and the instrument is more convenient to mount and dismount.
2. According to the invention, the spring and the steel wire are connected between the instrument clamping plate and the fixed plate, the steel wire is wound on the operating rod, the operating rod is rotated to tighten or loosen the steel wire, the opening and closing angle between the instrument clamping plate and the fixed plate is adjusted, the installation angle of the instrument is further adjusted, meanwhile, the spline structure is arranged at the front end of the operating rod, the external thread adjusting rod is slidably sleeved at the front end of the operating rod, the external thread adjusting rod is synchronously driven to rotate when the operating rod rotates, and the operating rod is clamped and fixed by utilizing the threaded engagement of the external thread adjusting rod and the internal thread cylinder, so that the operation is more convenient and the rotation of the operating rod can be prevented.
3. The magnifying glass is arranged on the outer side of the instrument, so that the index on the instrument can be magnified through the magnifying glass, and the instrument is more beneficial to observation of people with long distance or poor eyesight.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the first viewing angle structure shown in fig. 1 according to the present invention.
Fig. 3 is an enlarged schematic view of the invention at a in fig. 2.
Fig. 4 is a schematic diagram of a second perspective structure shown in fig. 1 according to the present invention.
Fig. 5 is an enlarged view of the structure of fig. 4 at B according to the present invention.
Fig. 6 is a schematic structural view of the flip cover of fig. 1 according to the present invention when opened.
FIG. 7 is a front-cut structure view of the instrument card of FIG. 6 according to the present invention.
Fig. 8 is an enlarged view of the structure of fig. 7 at C according to the present invention.
FIG. 9 is a schematic view of the meter card of FIG. 6 with the meter removed from the meter card slot.
FIG. 10 is a schematic view of the meter of FIG. 9 with the meter removed.
In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1. a fixing plate; 101. a first cartridge; 102. a second cartridge; 103. an operating lever; 1031. a limiting baffle A; 1032. a limiting baffle B; 1033. a steel wire; 104. an external thread adjusting rod; 105. an internal threaded barrel; 2. instrument clamping and mounting plates; 201. an instrument clamping groove; 2011. a slot; 2012. a clamping ring groove; 202. an outer shroud; 2021. a cover is turned; 20211. a magnifying glass; 2022. a magnetic block adsorption strip; 3. a spring; 4. a meter; 401. a lower clamping block; 5. supporting a spring; 501. a U-shaped retaining ring; 502. and (6) covering the cover.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," "two ends," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing and simplifying the description, and are not intended to indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be understood broadly, and for example, they may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
Example (b):
as shown in figures 1 to 10:
the invention provides an automatic instrument panel protection device, which comprises an instrument clamping plate 2; the front end of the instrument clamping plate 2 is rotatably connected with the front end of the fixing plate 1, the rear end of the instrument clamping plate 2 and the fixing plate 1 are opened and closed at a certain angle and are connected through two sets of springs 3, a steel wire 1033 is further connected to the bottom side of the rear end of the instrument clamping plate 2, the steel wire 1033 is wound on the operating rod 103, the operating rod 103 is rotatably inserted on the first clamping cylinder 101 and the second clamping cylinder 102, an external thread adjusting rod 104 is further sleeved at the front end of the operating rod 103, the external thread adjusting rod 104 is meshed with threads on the inner side of the internal thread cylinder 105 through threads on the outer side of the external thread adjusting rod, two sets of instrument clamping grooves 201 are further formed in the instrument clamping plate 2, instruments 4 are respectively arranged in the instrument clamping grooves 201, an outer protective cover 202 is further installed on the instrument clamping plate 2, and the two sets of instrument clamping grooves 201 are both arranged on the inner side.
Wherein, be equipped with a breach between the first card section of thick bamboo 101, and still be connected with limit baffle A1031 and limit baffle B1032 on the action bars 103 respectively, limit baffle A1031 pastes respectively on the both sides terminal surface of breach on the first card section of thick bamboo 101 with limit baffle B1032, utilizes limit baffle A1031 and limit baffle B103 to restrict the position of action bars 103, and then prevents that the action bars 103 from making a round trip to slide on first card section of thick bamboo 101 and second card section of thick bamboo 102.
The outer periphery of the front end of the operating rod 103 is provided with a spline structure, a spline clamping groove is formed in an inner hole of the external thread adjusting rod 104, the external thread adjusting rod 104 is slidably mounted on the outer side of the front end of the operating rod 103 through the spline clamping groove in the external thread adjusting rod, and the external thread adjusting rod 104 can slide back and forth at the front end of the operating rod 103 through the spline structure.
Wherein, two groups of slots 2011 are arranged on the inner wall of the instrument clamping groove 201, two groups of lower fixture blocks 401 are arranged at the lower end of the bottom of the instrument 4, when the instrument 4 is inserted into the instrument clamping groove 201, the lower fixture blocks 401 are slidably clamped into the slots 2011, the lower end of the instrument clamping groove 201 is also provided with a clamping ring groove 2012, the lower fixture blocks 401 are clamped in the clamping ring groove 2012, the middle of the inner bottom side of the instrument clamping groove 201 is provided with a stay spring 5, the bottom end of the stay spring 5 is fixed on the inner side of the instrument clamping groove 201 through a U-shaped retaining ring 501, the top end of the stay spring 5 is sleeved with an upper buckle cover 502, when the instrument 4 is clamped in the instrument clamping groove 201 through the lower fixture blocks 401, the stay spring 5 is in a compressed state, the lower fixture blocks 401 on the two groups of instruments 4 can be inserted into the slots 2011, the instrument 4 is pushed downwards to enable the lower fixture blocks 401 to enter the clamping ring groove 2011, and the instrument 4 can be clamped in the instrument clamping groove 201 under the action of the stay spring 5.
Wherein, the top of outer shroud 202 rotates and is connected with flip 2021, it has two sets of magnifiers 20211 to inlay on flip 2021, and magnifying glass 20211 is counterpointed respectively and is established directly over instrument clamping groove 201, still install magnetic path absorption strip 2022 on flip 2021 and the outer shroud 202 respectively, and flip 2021 passes through magnetic path absorption strip 2022 with outer shroud 202 and adsorbs and is connected, can adsorb flip 2021 on outer shroud 202 through magnetic path absorption strip 2022, utilize two sets of magnifiers 20211 that the instrument 4 outside is just right, enlarge the index on the instrument 4, do benefit to long-range or the relatively poor personnel of eyesight and observe more.
The specific use mode and function of the embodiment are as follows:
in the invention, firstly, a flip 2021 is opened, lower fixture blocks 401 on two groups of instruments 4 are inserted into a slot 2011, the instruments 4 are pushed downwards to enable the lower fixture blocks 401 to enter a clamping ring groove 2012, the instruments 4 are rotated to enable the lower fixture blocks 401 to leave the slot 2011, the instruments 4 can be clamped in the instrument clamping groove 201 under the action of a supporting spring 5, then the flip 2021 is connected to an outer shield 202 in an adsorption manner through a magnetic block adsorption strip 2022, indexes on the instruments 4 are amplified by utilizing two groups of magnifying glasses 20211 opposite to the outer sides of the instruments 4, the observation of people with long distance or poor eyesight is facilitated, an opening and closing angle between an instrument clamping plate 2 and a fixed plate 1 is adjusted by rotating an operating rod 103 or loosening a steel wire 1033, the installation angle of the instruments 4 is further adjusted, meanwhile, a spline structure is arranged at the front end of the operating rod 103, and an external thread adjusting rod 104 is sleeved at the front end of the operating rod 103 in a, the operation rod 103 synchronously drives the external thread adjusting rod 104 to rotate when rotating, and the operation rod 103 is clamped and fixed by utilizing the threaded engagement of the external thread adjusting rod 104 and the internal thread cylinder 105, so that the operation is more convenient and the rotation of the operation rod 103 can be prevented.
The invention is not described in detail, but is well known to those skilled in the art.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (8)
1. The utility model provides an automatic change panel board protector which characterized in that: comprises an instrument clamping plate (2); the front end of the instrument clamping plate (2) is rotatably connected with the front end of the fixing plate (1), the rear end of the instrument clamping plate (2) is opened and closed at a certain angle with the fixing plate (1) and is connected with the fixing plate through two groups of springs (3), the bottom side of the rear end of the instrument clamping plate (2) is further connected with a steel wire (1033), the steel wire (1033) is wound on the operating rod (103), the operating rod (103) is rotatably inserted into the first clamping cylinder (101) and the second clamping cylinder (102), the front end of the operating rod (103) is further sleeved with an external thread adjusting rod (104), the external thread adjusting rod (104) is meshed with the threads on the inner side of the internal thread cylinder (105) through the threads on the outer side of the external thread adjusting rod, the instrument clamping plate (2) is further provided with two groups of instrument clamping grooves (201), instruments (4) are respectively clamped in the instrument clamping grooves (201), and an outer protective cover (202) is further mounted on the instrument clamping plate (2), and the two groups of instrument clamping grooves (201) are arranged on the inner side of the outer shield (202).
2. The automated instrument panel protective apparatus of claim 1, wherein: a gap is arranged between the first clamping cylinders (101), the operating rod (103) is further connected with a limiting baffle plate A (1031) and a limiting baffle plate B (1032) respectively, and the limiting baffle plate A (1031) and the limiting baffle plate B (1032) are attached to the end faces of the two sides of the gap on the first clamping cylinders (101) respectively.
3. The automated instrument panel protective apparatus of claim 1, wherein: the outer periphery of the front end of the operating rod (103) is provided with a spline structure, a spline clamping groove is formed in an inner hole of the external thread adjusting rod (104), and the external thread adjusting rod (104) is slidably mounted on the outer side of the front end of the operating rod (103) through the spline clamping groove in the external thread adjusting rod.
4. The automated instrument panel protective apparatus of claim 1, wherein: the instrument clamps and is equipped with slot (2011) of two sets of counterpoints on the inner wall in groove (201), and instrument (4) bottom lower extreme is equipped with lower fixture block (401) of two sets of counterpoints, and instrument (4) insert instrument clamp groove (201) when inside, lower fixture block (401) slide card go into in slot (2011).
5. The automated instrument panel protective apparatus of claim 1, wherein: the lower extreme that the instrument clamped groove (201) still is equipped with a screens annular groove (2012), and lower fixture block (401) clamps in screens annular groove (2012).
6. The automated instrument panel protective apparatus of claim 1, wherein: the instrument clamping groove is characterized in that a supporting spring (5) is installed in the middle of the bottom side of the inside of the instrument clamping groove (201), the bottom end of the supporting spring (5) is fixed to the inner side of the instrument clamping groove (201) through a U-shaped retaining ring (501), and an upper retaining cover (502) is sleeved on the top end of the supporting spring (5).
7. The automated instrument panel protective apparatus of claim 1, wherein: the top end of the outer protective cover (202) is rotatably connected with a flip cover (2021), two groups of magnifying lenses (20211) are inlaid on the flip cover (2021), the magnifying lenses (20211) are respectively aligned and arranged right above the instrument clamping groove (201), the flip cover (2021) and the outer protective cover (202) are respectively provided with a magnetic block adsorption strip (2022), and the flip cover (2021) and the outer protective cover (202) are in adsorption connection through the magnetic block adsorption strip (2022).
8. The automated instrument panel protective apparatus of claim 1, wherein: when the instrument (4) is clamped in the instrument clamping groove (201) through the lower clamping block (401), the support spring (5) is in a compressed state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010985875.7A CN112133363A (en) | 2020-09-18 | 2020-09-18 | Automatic change panel board protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010985875.7A CN112133363A (en) | 2020-09-18 | 2020-09-18 | Automatic change panel board protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112133363A true CN112133363A (en) | 2020-12-25 |
Family
ID=73841435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010985875.7A Pending CN112133363A (en) | 2020-09-18 | 2020-09-18 | Automatic change panel board protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112133363A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112793693A (en) * | 2020-12-29 | 2021-05-14 | 徐州俊宏电子科技有限公司 | Novel dedicated intelligent instrument that has safeguard function of electric motor car |
| CN113295195A (en) * | 2021-04-15 | 2021-08-24 | 安徽省赛格威科技有限公司 | Color screen liquid crystal instrument convenient to clean protection |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207112264U (en) * | 2017-09-08 | 2018-03-16 | 惠州市睿诚自动化设备有限公司 | A kind of instrument angle adjustable device for placing |
| CN209164939U (en) * | 2018-11-13 | 2019-07-26 | 安徽蓝德自动化科技有限公司 | A kind of meter support structure of adjustable angle |
| CN209623735U (en) * | 2019-05-16 | 2019-11-12 | 徐州思达新技术开发有限公司 | A kind of disassembly mounting structure being easily changed instrument board |
| CN209829647U (en) * | 2019-04-25 | 2019-12-24 | 福建泉能石粉综合利用有限公司 | Workshop dust collector for stone material processing |
| CN210069424U (en) * | 2019-06-26 | 2020-02-14 | 广州市新视通电子有限公司 | Wall hanging device of flat panel display equipment |
| CN211203554U (en) * | 2019-10-31 | 2020-08-07 | 乐歌人体工学科技股份有限公司 | Mounting structure of display support |
| CN211232157U (en) * | 2019-11-27 | 2020-08-11 | 深圳市中和智通智能科技有限公司 | Advertisement screen with automatic playing function |
-
2020
- 2020-09-18 CN CN202010985875.7A patent/CN112133363A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207112264U (en) * | 2017-09-08 | 2018-03-16 | 惠州市睿诚自动化设备有限公司 | A kind of instrument angle adjustable device for placing |
| CN209164939U (en) * | 2018-11-13 | 2019-07-26 | 安徽蓝德自动化科技有限公司 | A kind of meter support structure of adjustable angle |
| CN209829647U (en) * | 2019-04-25 | 2019-12-24 | 福建泉能石粉综合利用有限公司 | Workshop dust collector for stone material processing |
| CN209623735U (en) * | 2019-05-16 | 2019-11-12 | 徐州思达新技术开发有限公司 | A kind of disassembly mounting structure being easily changed instrument board |
| CN210069424U (en) * | 2019-06-26 | 2020-02-14 | 广州市新视通电子有限公司 | Wall hanging device of flat panel display equipment |
| CN211203554U (en) * | 2019-10-31 | 2020-08-07 | 乐歌人体工学科技股份有限公司 | Mounting structure of display support |
| CN211232157U (en) * | 2019-11-27 | 2020-08-11 | 深圳市中和智通智能科技有限公司 | Advertisement screen with automatic playing function |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112793693A (en) * | 2020-12-29 | 2021-05-14 | 徐州俊宏电子科技有限公司 | Novel dedicated intelligent instrument that has safeguard function of electric motor car |
| CN112793693B (en) * | 2020-12-29 | 2022-07-15 | 徐州俊宏电子科技有限公司 | Dedicated intelligent instrument that has safeguard function of electric motor car |
| CN113295195A (en) * | 2021-04-15 | 2021-08-24 | 安徽省赛格威科技有限公司 | Color screen liquid crystal instrument convenient to clean protection |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112133363A (en) | Automatic change panel board protector | |
| CN207924230U (en) | A kind of cam lens anti-scratch workpiece | |
| CN210485185U (en) | Urban public security monitoring device convenient to install | |
| CN210123535U (en) | Display with double-sided screen | |
| CN211649551U (en) | Information acquisition device for geographic mapping | |
| CN203519034U (en) | Metering device equipped with full-automatic focusing shooting mechanism | |
| CN113597147B (en) | Drive-by-wire ware subassembly and air conditioner | |
| CN212809080U (en) | Intelligent electronic engineering information collector with visual display | |
| CN214507590U (en) | Portable integrated management terminal based on video AI intelligent technology | |
| CN215543620U (en) | Display supporting modular expansion | |
| CN114243473A (en) | Outdoor waterproof power distribution cabinet with cabinet door supporting and protecting mechanism | |
| CN111609285A (en) | Outdoor installation protection strutting arrangement of environment monitoring equipment | |
| CN209980593U (en) | Portable Young double-slit interference demonstration device | |
| CN112885158A (en) | A mathematics teaching aid for training of mathematics thinking | |
| CN219409568U (en) | Day and night dual-purpose light filter coating clamp for white glass for mobile phone | |
| CN209640644U (en) | A kind of liquid crystal display of light automatic adjustment | |
| CN220399744U (en) | Laminating device of 3D grating in naked eye 3D display screen | |
| CN201867566U (en) | Camera obscura of UV transilluminator | |
| CN218728800U (en) | But conference that blue light was prevented in soft adjustment is dull and stereotyped | |
| CN216843915U (en) | Liquid crystal display convenient to install | |
| CN214202023U (en) | Optical adjustable filter system | |
| CN213982744U (en) | Portable electrified display screen convenient to installation is dismantled | |
| CN220323610U (en) | Filter drawer | |
| CN216561152U (en) | Filter switching device for professional astronomical telescope | |
| CN219287906U (en) | Remote alarm monitoring device for single well of oil field |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201225 |
|
| RJ01 | Rejection of invention patent application after publication |