CN112116869B - Display device for automatic test of PWM zero setting parameters - Google Patents
Display device for automatic test of PWM zero setting parameters Download PDFInfo
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- CN112116869B CN112116869B CN202010846800.0A CN202010846800A CN112116869B CN 112116869 B CN112116869 B CN 112116869B CN 202010846800 A CN202010846800 A CN 202010846800A CN 112116869 B CN112116869 B CN 112116869B
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- 238000012360 testing method Methods 0.000 title claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 7
- 210000004243 sweat Anatomy 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/14—Wipes; Absorbent members, e.g. swabs or sponges
- B08B1/143—Wipes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses a display device for automatic test of PWM zero setting parameters, which comprises a display screen main body, wherein a fixing frame is sleeved and fixedly connected with the periphery of the display screen main body, a fixing groove is formed in the fixing frame, the fixing groove is of a frame-shaped structure and is positioned on the front surface of the display screen main body, sliding grooves are formed in the inner walls of the back surfaces of two sides of the fixing groove, sliding mechanisms are arranged on two sides of the inner part of the fixing groove, a fixing plate is jointly arranged between the sliding mechanisms, and a sponge strip is arranged on the back surface of the fixing plate, and the display device has the beneficial effects that: when the fixing frame is used, the sponge strips slide on the surface of the display screen main body through the fixing plate, foreign matters such as dust on the surface of the display screen main body and stains formed by sweat are cleaned, and the phenomenon that the foreign matters such as dust and the stains formed by the sweat influence workers to observe the display screen main body is avoided.
Description
Technical Field
The invention relates to the technical field of display devices, in particular to a display device for automatic test of PWM zero setting parameters.
Background
Many electronic devices can be used in the automatic test of the PWM zero setting parameters, one of the display devices is convenient for workers to observe test data, and the display screen is also one of the display devices.
At present, most display screens used for automatic PWM zero setting parameter testing are exposed in the air, when the device is used, foreign matters such as dust in the air can fall on the surfaces of the display screens, and sweat on fingers of workers can be stained on the surfaces of the display screens to form stains and influence the workers to observe the display screens.
Disclosure of Invention
The invention aims to provide a display device for automatic test of PWM zero setting parameters, which aims to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a display device for automatic survey of PWM zeroing parameter, includes the display screen main part, the fixed frame of just fixedly connected with is established to the peripheral cover of display screen main part, the fixed slot has been seted up to the inside of fixed frame, the fixed slot is the frame structure and is located the front of display screen main part, the spout has all been seted up on the back inner wall of fixed slot both sides, slide mechanism is all installed to the inside both sides of fixed slot, install the fixed plate jointly between the slide mechanism, the back mounting of fixed plate has the sponge strip, the back of sponge strip supports the front at the display screen main part, the draw-in groove has been seted up at the middle part of the positive upper end of fixed frame.
Preferably, slide mechanism all includes the slide, the equal sliding connection of slide is in the inside of place fixed slot, the equal sliding connection in the inside of homonymy spout in the back of slide, the recess has all been seted up to the inside of slide, the opening part of recess all sets up the one side that is close to fixed frame middle part at the place slide, the spacing groove has all been seted up on the upper and lower end inner wall of recess, the equal sliding connection in inside of recess has the slider, the inner wall fixed connection of compression spring and place recess is all passed through to one side that fixed frame middle part was kept away from to the slider.
Preferably, the upper end and the lower end of the sliding block are fixedly connected with limiting blocks, and the limiting blocks are connected inside the limiting grooves on the same side in a sliding mode.
Preferably, the fixed plate includes two support plates, two the support plate bonds respectively in the positive both sides of sponge strip, two the equal joint in one side is kept away from mutually to the support plate inside homonymy slide mechanism's slider, two smooth chamber has all been seted up to the inside of support plate, smooth chamber has all seted up the jack on keeping away from one side inner wall at fixed frame middle part, the equal sliding connection in inside of smooth chamber has the slide, the slide is close to the equal fixedly connected with reset spring in one side at fixed frame middle part, one side that reset spring is close to fixed frame middle part all with the smooth chamber in place be close to one side inner wall fixed connection at fixed frame middle part, two the support plate is close to mutually and runs through and sliding connection has the slide bar between one side.
Preferably, both ends of the slide bar sequentially penetrate through the same-side reset spring and the slide plate and are inserted into the same-side jack, and the slide bar is fixedly connected to the inside of the same-side slide plate.
Preferably, the supporting plates are fixedly connected to the front sides of the two support plates close to one side, and the supporting plates arranged on the two support plates are matched with the two clamping grooves formed in the fixing frame.
Compared with the prior art, the invention has the beneficial effects that: when the fixing frame is used, the sponge strips slide on the surface of the display screen main body through the fixing plate, foreign matters such as dust on the surface of the display screen main body and stains formed by sweat are cleaned, and the phenomenon that the foreign matters such as dust and the stains formed by the sweat influence workers to observe the display screen main body is avoided.
Drawings
FIG. 1 is a cut-away view of the present invention;
FIG. 2 is a view of the area A in FIG. 1;
FIG. 3 is a schematic structural view of the sliding mechanism of the present invention;
FIG. 4 is a schematic view of a connecting structure of a sponge strip and two carrier plates according to the present invention;
fig. 5 is an external structural view of the present invention.
In the figure: 1. a display screen main body; 2. a fixing frame; 3. fixing grooves; 4. a chute; 5. a sliding mechanism; 51. a slide base; 52. a groove; 53. a limiting groove; 54. a slider; 55. a compression spring; 56. a limiting block; 6. a fixing plate; 61. a carrier plate; 62. a slide chamber; 63. a jack; 64. a slide plate; 65. a return spring; 66. a slide bar; 67. a support plate; 7. a sponge strip; 8. a clamping groove.
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. 1-5, the present invention provides a technical solution: the utility model provides a display device for automatic survey of PWM zero setting parameter, including display screen main part 1, the fixed frame 2 of just fixedly connected with is established to the peripheral cover of display screen main part 1, fixed slot 3 has been seted up to the inside of fixed frame 2, fixed slot 3 is the frame structure and is located the front of display screen main part 1, spout 4 has all been seted up on the back inner wall of fixed slot 3 both sides, sliding mechanism 5 is all installed to the inside both sides of fixed slot 3, install fixed plate 6 between the sliding mechanism 5 jointly, the back mounted of fixed plate 6 has sponge strip 7, the back of sponge strip 7 supports the front at display screen main part 1, draw-in groove 8 has been seted up at the middle part of the positive upper end of fixed frame 2, through the surperficial slip that makes sponge strip 7 at display screen main part 1, the spot that foreign matter and the sweat that clearance display screen main part 1 surface dust and the like formed.
The sliding mechanisms 5 respectively comprise a sliding seat 51, the sliding seats 51 are respectively connected inside the fixed groove 3, the back surfaces of the sliding seats 51 are respectively connected inside the sliding grooves 4 on the same side in a sliding manner, grooves 52 are respectively formed inside the sliding seats 51, openings of the grooves 52 are respectively formed in one side of the sliding seats 51 close to the middle part of the fixed frame 2, the inner walls of the upper end and the lower end of each groove 52 are respectively provided with a limiting groove 53, the inside of each groove 52 is respectively connected with a sliding block 54 in a sliding manner, the upper end and the lower end of each sliding block 54 are respectively fixedly connected with a limiting block 56, the limiting blocks 56 are respectively connected inside the limiting grooves 53 on the same side in a sliding manner, one side of each sliding block 54 far away from the middle part of the fixed frame 2 is respectively fixedly connected with the inner wall of the corresponding groove 52 through a compression spring 55, so that the two sides of the fixed plate 6 can be fixed on the fixed frame 2 conveniently, meanwhile, the fixed plate 6 comprises two support plates 61, the front surfaces of the two support plates 61 are respectively fixedly connected with a support plate 67 close to one side, the support plates 67 arranged on the two support plates 61 are matched with the two clamping grooves 8 arranged on the fixed frame 2, when cleaning, the two support plates 61 can be moved through the two support plates 67, so that the two support plates 61 drive the sponge strip 7 to slide on the surface of the display screen main body 1, the two support plates 61 are respectively bonded on two sides of the front surface of the sponge strip 7, one sides of the two support plates 61 far away from each other are respectively clamped in the slide blocks 54 of the slide mechanisms 5 on the same side, the insides of the two support plates 61 are respectively provided with a slide cavity 62, the inner walls of the slide cavities 62 far away from the middle part of the fixed frame 2 are respectively provided with an inserting hole 63, the insides of the slide cavities 62 are respectively and slidably connected with a slide plate 64, one sides of the slide plates 64 close to the middle part of the fixed frame 2 are respectively and fixedly connected with a return spring 65, one side of the return spring 65 close to the middle part of the fixed frame 2 is respectively and fixedly connected with the inner wall of the slide cavity 62 close to the middle part of the fixed frame 2, a slide rod 66 is jointly penetrated and slidably connected between one side of the two support plates 61 close to one side, the both ends of slide bar 66 all run through homonymy reset spring 65 and slide 64 in proper order and all insert in the inside of homonymy jack 63, and the equal fixed connection of slide bar 66 is in the inside of homonymy slide 64, is convenient for link together two support plates 61, extrudees homonymy reset spring 65 when conveniently dismantling simultaneously.
Specifically, when the invention is used, the two support plates 67 are pinched, the support plate 61 and the sponge strip 7 are pulled out from the inside of the fixing groove 3, and the sponge strip 7 slides on the surface of the display screen main body 1, in the sliding process, the sponge strip 7 can clean up foreign matters such as dust and sweat formed on the surface of the display screen main body 1, then the support plate 61 and the sponge strip 7 slide to the upper end of the inside of the fixing groove 3, the support plates 67 are clamped inside the clamping groove 8, the support plate 61 and the sponge strip 7 are fixed at the upper end of the inside of the fixing groove 3, when the sponge strip 7 is replaced, the two support plates 61 are moved towards each other through the two support plates 67, the far side of the two support plates 61 is pulled out from the inside of the slide block 54 at the same side, at the moment, the return spring 65 is in a compressed state, then the two support plates 61 and the sponge strip 7 are taken off from the fixing frame 2, the sponge strip 7 is torn off from the back sides of the two support plates 61, and paste a new sponge strip 7 on the back of two carrier plates 61 together, extrude two carrier plates 61 again, make the distance between the two carrier plates 61 keep away from one side smaller than the distance between the two sides of the fixed frame 2 inside, then put two carrier plates 61 inside the fixed frame 2, and make two carrier plates 61 and two sliders 54 align, loosen two support plates 67, under the elastic action of the reset spring 65, two carrier plates 61 do the backward movement, until inserting inside of the slider 54 of the same side, and extrude the slider 54 of the same side, the slider 54 extrudes the carrier plate 61 of the same side in the reverse direction under the elastic action of the compression spring 55 of the same side, and then clamp two carrier plates 61 inside the fixed frame 2, at this moment the back of the new sponge strip 7 pastes on the surface of the display main body 1, later slide two carrier plates 61 into the inside upper end of the fixed slot 3 with the new sponge strip 7.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; 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.
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 (4)
1. A display device for automatic test of PWM zero setting parameters is characterized by comprising a display screen main body (1), a fixing frame (2) is sleeved and fixedly connected on the periphery of the display screen main body (1), a fixing groove (3) is arranged in the fixing frame (2), the fixing groove (3) is of a frame-shaped structure and is positioned on the front surface of the display screen main body (1), the inner walls of the back surfaces of the two sides of the fixed groove (3) are both provided with a sliding groove (4), the two sides of the inner part of the fixed groove (3) are both provided with a sliding mechanism (5), a fixed plate (6) is arranged between the sliding mechanisms (5), a sponge strip (7) is arranged on the back of the fixed plate (6), the back surface of the sponge strip (7) is pressed against the front surface of the display screen main body (1), the middle part of the upper end of the front side of the fixed frame (2) is provided with a clamping groove (8); the sliding mechanisms (5) comprise sliding seats (51), the sliding seats (51) are all slidably connected inside the fixing grooves (3) at the positions, the back faces of the sliding seats (51) are all slidably connected inside the sliding grooves (4) at the same side, grooves (52) are formed in the sliding seats (51), openings of the grooves (52) are formed in one sides, close to the middle of the fixing frame (2), of the sliding seats (51), limiting grooves (53) are formed in the inner walls of the upper ends and the lower ends of the grooves (52), sliding blocks (54) are connected inside the grooves (52) in a sliding mode, and one sides, far away from the middle of the fixing frame (2), of the sliding blocks (54) are fixedly connected with the inner walls of the grooves (52) at the positions through compression springs (55); the fixing plate (6) comprises two support plates (61), the two support plates (61) are respectively bonded on two sides of the front surface of the sponge strip (7), one sides of the two support plates (61) far away from each other are respectively clamped in the sliding blocks (54) of the sliding mechanisms (5) on the same side, sliding cavities (62) are respectively arranged in the two support plates (61), the inner walls of the sliding cavities (62) far away from the middle part of the fixed frame (2) are all provided with jacks (63), the sliding cavities (62) are connected with sliding plates (64) in a sliding manner, one sides of the sliding plates (64) close to the middle part of the fixed frame (2) are fixedly connected with return springs (65), reset spring (65) are close to one side in fixed frame (2) middle part all with place smooth chamber (62) be close to one side inner wall fixed connection in fixed frame (2) middle part, two support plate (61) are close to mutually and run through and sliding connection has slide bar (66) jointly between one side.
2. The display device for automatic test of PWM zeroing parameter according to claim 1, wherein: the upper end and the lower end of the sliding block (54) are fixedly connected with limiting blocks (56), and the limiting blocks (56) are connected inside the limiting grooves (53) on the same side in a sliding mode.
3. The display device for automatic test of PWM zeroing parameter according to claim 1, wherein: two ends of the sliding rod (66) sequentially penetrate through the return spring (65) and the sliding plate (64) on the same side and are inserted into the insertion hole (63) on the same side, and the sliding rod (66) is fixedly connected to the inside of the sliding plate (64) on the same side.
4. The display device for automatic test of PWM zeroing parameter according to claim 1, wherein: two support plate (61) openly are close to one side equal fixedly connected with extension board (67) mutually, two extension board (67) that set up on support plate (61) and two draw-in grooves (8) of seting up on fixed frame (2) match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010846800.0A CN112116869B (en) | 2020-08-21 | 2020-08-21 | Display device for automatic test of PWM zero setting parameters |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010846800.0A CN112116869B (en) | 2020-08-21 | 2020-08-21 | Display device for automatic test of PWM zero setting parameters |
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| Publication Number | Publication Date |
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| CN112116869A CN112116869A (en) | 2020-12-22 |
| CN112116869B true CN112116869B (en) | 2022-06-07 |
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| CN114495758A (en) * | 2021-06-29 | 2022-05-13 | 青岛理工大学 | Rural holographic projection propaganda device |
| CN113573515B (en) * | 2021-07-09 | 2022-10-04 | 西安环宇芯微电子有限公司 | DSP test graph generation system and implementation method thereof |
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| CN207895626U (en) * | 2018-02-09 | 2018-09-21 | 南阳医学高等专科学校 | A kind of dust-protection type Self-assistant library terminal |
| CN211149985U (en) * | 2019-11-18 | 2020-07-31 | 深圳市艾伦森光电有限公司 | indoor L ED poster screen |
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| CN207799527U (en) * | 2017-11-01 | 2018-08-31 | 大庆师范学院 | A kind of free rotary dustproof computer display |
| CN207796750U (en) * | 2018-02-01 | 2018-08-31 | 广州市景明光电科技有限公司 | A kind of environmental protection LED wall wash lamp |
| CN208819137U (en) * | 2018-09-28 | 2019-05-03 | 高英杰 | A kind of electronic information plate |
| CN209843100U (en) * | 2019-04-25 | 2019-12-24 | 深圳市亿特朗科技有限公司 | Mirror surface human body induction embedded advertising machine with camera |
| CN210324996U (en) * | 2019-08-15 | 2020-04-14 | 苏州驰夫电子科技有限公司 | LED display screen of easy clearance |
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2020
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207895626U (en) * | 2018-02-09 | 2018-09-21 | 南阳医学高等专科学校 | A kind of dust-protection type Self-assistant library terminal |
| CN211149985U (en) * | 2019-11-18 | 2020-07-31 | 深圳市艾伦森光电有限公司 | indoor L ED poster screen |
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