CN107588065B - Arc lock and display screen - Google Patents
Arc lock and display screen Download PDFInfo
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- CN107588065B CN107588065B CN201710903800.8A CN201710903800A CN107588065B CN 107588065 B CN107588065 B CN 107588065B CN 201710903800 A CN201710903800 A CN 201710903800A CN 107588065 B CN107588065 B CN 107588065B
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- 230000001105 regulatory effect Effects 0.000 abstract description 11
- 230000033001 locomotion Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
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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
- G09F9/33—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 being semiconductor devices, e.g. diodes
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- Theoretical Computer Science (AREA)
- Toys (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses an arc lock which comprises a base, a sliding adjusting block, a screw and a curved surface adjusting block, wherein the base is provided with a sliding rail, and the sliding adjusting block is provided with a first sliding groove matched with the sliding rail; two ends of the screw rod are arranged on the base; the sliding adjusting block is provided with a threaded hole matched with the screw rod; the curved surface regulating block comprises an arc surface, a second sliding groove is formed in the arc surface, the second sliding groove is spirally formed in the arc surface, and a protruding block matched with the second sliding groove is arranged on the sliding regulating block. The invention also discloses a display screen which comprises the arc lock, a first box body and a second box body, wherein a base of the arc lock is arranged on the first box body, and the curved surface adjusting block is connected with the second box body. The arc lock and the display screen are simple in structure, convenient to operate and high in adjusting precision.
Description
Technical Field
The invention relates to the technical field of LED display screens, in particular to an arc-shaped lock and a display screen.
Background
The LED display screen is an important means of information transmission nowadays, and based on the rapid development of the LED display screen industry, more and more new products are brought to the market, and the LED display screen box body can be divided into a right-angle box and an arc-shaped box in a large category. In recent years, the invention design of the arc-shaped box is more and more favored, the arc-shaped box can be spliced and the right angle can be spliced, the application is more than that of the right-angle box, and the applicable places are wider.
The arc lock is used between the box body and the box body, plays a role in connection and fixation, and realizes the adjustment of the arc splicing angle. The arc splicing mechanisms in the current market mostly use angle cushion blocks or arc guide rails to realize fixation, but certain disadvantages exist in the two modes. For example, the fit clearance of arc guide rail can enlarge the precision error by tens of times on the tangential direction of radian to be difficult to guarantee the concatenation precision of screen, and radian guide rail atress direction is unanimous with the regulation direction, so the radian guide rail must have locking device just can guarantee that the angle that has adjusted is fixed unchangeably, and consequently the structure of arc lock can become complicated a lot, and it is very inconvenient to operate. And angle cushion can provide higher concatenation precision, but an angle cushion only has an angle, will adjust different angles and just must change different angle cushions, not only can the increase cost, use inconvenient moreover. In addition, the existing arc splicing mechanism only has one scale indication once, and the scale is required to be accurate to within one degree in practical application, so that the existing arc splicing mechanism cannot accurately display.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the arc lock and the display screen are convenient to operate, high in adjusting precision, simple in structure and low in manufacturing cost.
In order to solve the technical problems, the first technical scheme adopted by the invention is as follows:
an arc lock comprises a base, a sliding adjusting block, a screw rod and a curved surface adjusting block, wherein a sliding rail is arranged on the base, and a first sliding groove matched with the sliding rail is arranged on the sliding adjusting block; two ends of the screw rod are arranged on the base; the sliding adjusting block is provided with a threaded hole matched with the screw rod; the curved surface regulating block comprises an arc surface, a second sliding groove is formed in the arc surface, the second sliding groove is spirally formed in the arc surface, and a protruding block matched with the second sliding groove is arranged on the sliding regulating block.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a display screen, includes technical scheme one the arc lock, still include first box and second box, the base of arc lock set up in on the first box, the curved surface regulating block with the second box is connected.
The invention has the beneficial effects that: the invention adopts a curved surface slide rail to realize the conversion from plane motion to rotary motion: after the base and the curved surface adjusting block are respectively fixed on the first box body and the second box body, the screw rod is rotated, the sliding adjusting block can move along the sliding rail, meanwhile, the convex block on the sliding adjusting block can move along the second sliding groove on the curved surface adjusting block, and the second sliding groove is spiral on the arc surface, so that the sliding adjusting block can rotate in a direction perpendicular to the sliding rail while moving along the sliding rail direction, and the change of the arc splicing angle of the first box body and the second box body is realized; the adjustable radian range of the arc lock is large, and when the arc angle is adjusted to a required angle, any locking device is not required to be used for fixing, the structure is simple, the operation is convenient, and the manufacturing cost is low.
Drawings
FIG. 1 is an exploded view of an arcuate lock in accordance with an embodiment of the present invention;
FIG. 2 is a vertical cross-sectional view of an arcuate lock in accordance with an embodiment of the present invention;
FIG. 3 is a cross-sectional view of an arcuate lock of an embodiment of the present invention in a horizontal orientation;
FIG. 4 is a schematic view of a rear structure of the skateboard according to the embodiment of the present invention;
FIG. 5 is a cross-sectional view of a conical screw of an embodiment of the present invention when connected to a second housing;
description of reference numerals:
1. a base; 11. a screw mounting hole; 12. a first pit; 2. a screw; 21. locking screws;
3. a knob; 4. a first wave ball screw; 5. a slide plate; 51. a second pit; 52. a slide rail;
6. a sliding adjusting block; 61. a first chute; 62. a raised block; 63. a second wave ball screw;
7. a curved surface adjusting block; 71. a second chute; 72. a tapered connection hole; 8. a fixing plate;
81. a first scale; 9. a vernier plate; 91. a second scale; 10. a conical screw; 101. a handle;
102. an annular groove; 103. and a limiting screw.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
The most key concept of the invention is that the sliding rail 52 is matched with the first sliding chute 61 of the sliding adjusting block 6, and the screw 2 is arranged to drive the sliding adjusting block 6 to move on the sliding rail 52; and set up curved surface regulating block 7, set up spiral second spout 71 on curved surface regulating block 7, set up protruding piece 62 with second spout 71 matched with on the slide adjusting block 6 to change the plane movement of slide adjusting block 6 into the rotary motion of base 1.
Referring to fig. 1, fig. 2 and fig. 3, an arc lock includes a base 1, a sliding adjusting block 6, a screw rod 2 and a curved surface adjusting block 7, wherein the base 1 is provided with a sliding rail 52, and the sliding adjusting block 6 is provided with a first sliding groove 61 matched with the sliding rail 52; two ends of the screw rod 2 are arranged on the base 1; the sliding adjusting block 6 is provided with a threaded hole matched with the screw rod 2; curved surface regulating block 7 includes an arc surface, be provided with second spout 71 on the arc surface, just second spout 71 is in be the heliciform setting on the arc surface, be provided with on the slide adjusting block 6 with the protruding piece 62 of second spout 71 looks adaptation.
From the above description, the beneficial effects of the present invention are: the invention adopts a curved surface slide rail to realize the conversion from plane motion to rotary motion: the base is fixed on the first box body, the second box body is connected with the curved surface adjusting block, the screw rod is rotated, the sliding adjusting block can move along the sliding rail, meanwhile, the convex block on the sliding adjusting block can move along the second sliding groove on the curved surface adjusting block, and the second sliding groove is spiral on the arc surface, so that the sliding adjusting block can rotate in a direction perpendicular to the sliding rail while moving along the sliding rail direction, and the change of the splicing arc angle of the first box body and the second box body is realized; the adjustable radian range of the arc lock is large, and when the arc angle is adjusted to a required angle, any locking device is not required to be used for fixing, the structure is simple, the operation is convenient, and the manufacturing cost is low.
Further, the device also comprises a fixed plate 8 and a vernier plate 9, wherein the fixed plate 8 is fixed on the base 1, and a first scale 81 is arranged on the fixed plate 8; the vernier plate 9 is arranged on the side edge of the fixing plate 8, the vernier plate 9 is fixedly connected with the sliding adjusting block 6, a second scale 91 is arranged on the vernier plate 9, and the unit length of the second scale 91 is 9/10 of the unit length of the first scale 81.
From the above description, the fixed plate and the vernier plate are combined to form a ten-degree vernier caliper, which can accurately display the rotation radian.
Furthermore, a screw mounting hole 11 is formed in the base 1, the screw 2 is inserted into the screw mounting hole 11, and ten first pits 12 are uniformly formed around the screw mounting hole 11; the end part of the screw rod 2 is fixedly connected with a knob 3, a first wave ball screw 4 is fixed on the side surface of the knob 3 close to the base 1, and the end part of the first wave ball screw 4 is matched with the first pit 12.
According to the scheme, one rotation of the screw rod is one degree, ten pits are uniformly formed in the periphery of the screw rod mounting hole, the first wavy bead screw is matched with the screw rod mounting hole, operation hand feeling can be greatly improved, the first pit is rotated by 0.1 degree when the first wavy bead screw is clamped into the first pit, and an operator can rapidly adjust the display screen to a required angle according to hand feeling.
Further, the curved surface adjusting block 7 is a quarter cylinder, and the second sliding groove 71 extends from the bottom of the cylindrical surface to the top of the cylindrical surface in a spiral manner.
Further, the number of the second sliding grooves 71 is more than one, and the more than one second sliding grooves 71 are parallel to each other.
As can be seen from the above description, the plurality of parallel second sliding chutes can more accurately limit the rotation of the sliding adjusting block.
Further, the device also comprises a sliding plate 5, wherein the sliding plate 5 is fixedly connected to the base 1, and the sliding rail 52 is arranged on the sliding plate 5; two rows of second concave pits 51 are arranged on the side surface of the sliding plate 5 close to the sliding adjusting block 6, and the two rows of second concave pits 51 are staggered with each other in the moving direction of the sliding adjusting block 6; two second wave ball screws 63 are fixed on the side surface of the sliding adjusting block 6 close to the sliding plate 5, and the two wave ball screws respectively correspond to the two rows of second concave pits 51.
According to the above description, in the scheme, two adjacent second pits of each row of second pits rotate by 2 degrees corresponding to the sliding adjusting block, the two rows of second pits are staggered with each other, the two second wave ball screws are clamped into the second pits at intervals, and each clamping operation is performed by 1 degree corresponding to the sliding adjusting block; here, the function is similar to that of the first recess 12, and the function is used for improving the hand feeling of an operator.
The utility model provides a display screen, includes foretell arc lock, still includes first box and second box, the base 1 of arc lock set up in on the first box, curved surface regulating block 7 with the second box is connected. As can be seen from the above description, the relative rotation of the sliding adjusting block and the curved surface adjusting block can realize the change of the arc splicing angle of the first box body and the second box body.
Further, the base 1 is arranged at the top corner of the first box body, and the curved surface adjusting block 7 is connected with the top corner of the second box body.
As can be seen from the above description, because the arc lock comprises the slide rail, the arc lock is arranged on the upper part of the box body, and compared with the lower part of the box body, the spliced box body has higher strength.
Furthermore, the curved surface adjusting block 7 further comprises a fixed plane, and a connecting hole is formed in the fixed plane; the second box body is connected with the curved surface adjusting block 7 through a screw rod.
As can be seen from the above description, the tapered thread structure can enable the box body and the curved surface adjusting block to be closer to each other, and the box body is prevented from being staggered.
Further, the connecting hole is a conical connecting hole 72, the screw is a conical screw 10, and an annular groove 102 is formed in the middle of the conical screw 10; the second box body is provided with a conical screw mounting hole, the side wall of the conical screw mounting hole is provided with a limiting screw 103, and the limiting screw 103 is matched with the annular groove 102 to limit the conical screw 10 in the conical screw mounting hole and prevent the conical screw from falling off.
According to the above description, when the arc lock between the two box bodies is disassembled, the conical screw can be limited in the conical screw mounting hole by the limiting screw, so that the conical screw cannot fall off and fall out, and the parts are prevented from being lost.
Examples
The first embodiment of the invention is as follows: the utility model provides a display screen, includes first box and second box, connects through the arc lock between first box and the second box to splice into the cambered surface display screen that has the radian. The radian of the display screen can be adjusted by adjusting the components inside the arc lock.
As shown in fig. 1, the arc lock mainly includes a base 1, a sliding plate 5, a sliding adjusting block 6, a screw rod 2, a curved surface adjusting block 7 and other components, the base 1 is disposed on the first box body, a connecting hole is disposed on the curved surface adjusting block 7, and the curved surface adjusting block 7 is connected with the second box body through the screw rod. Preferably, the base 1 is arranged at the upper right corner of the first box body, and the curved surface adjusting block 7 is connected to the upper left corner of the second box body. In this embodiment, the curved surface adjusting block 7 includes a fixed plane, and a tapered connecting hole 72 is formed in the fixed plane; as shown in fig. 5, the second box body is connected with the curved surface adjusting block 7 through a conical screw 10, and the second box body is provided with a conical screw mounting hole. One end of the conical screw 10 is provided with a conical thread, the other end of the conical screw 10 is fixedly connected with a handle 101, and the conical screw 10 can be locked into the conical connecting hole 72 by rotating the handle 101, so that the second box body is fixed with the curved surface adjusting block 7. Preferably, an annular groove 102 is formed in the middle of the conical screw 10, a limit screw 103 is arranged on the side wall of the mounting hole of the conical screw 10, the limit screw 103 is matched with the annular groove 102 to limit the conical screw 10 in the mounting hole of the conical screw 10 and prevent the conical screw from falling off, and when the curved surface adjusting block 7 is assembled and disassembled, small parts such as the conical screw 10 are not worried about falling off and losing.
As shown in fig. 1 to 3, the base 1 includes a containing cavity with two open sides, the sliding plate 5 is fixed on the base 1 through four countersunk screws, and two side edges of the sliding plate 5 are provided with slide rails 52; the sliding adjusting block 6 is located in the accommodating cavity, a first sliding groove 61 matched with the sliding rail 52 is arranged on the back face of the sliding adjusting block 6, and the sliding adjusting block 6 can move up and down along the sliding rail 52 in the accommodating cavity. Screw rod mounting holes 11 are respectively formed in the positions, corresponding to the sliding adjusting blocks 6, of the base 1, and two ends of the screw rod 2 are installed in the screw rod mounting holes 11. The sliding adjusting block 6 is provided with a threaded hole matched with the screw rod 2, the screw rod 2 penetrates through the threaded hole, the screw rod 2 is rotated, and the sliding adjusting block 6 can move up and down on the sliding rail 52.
Curved surface regulating block 7 includes an arc surface, be provided with second spout 71 on the arc surface, just second spout 71 is the heliciform setting on the arc surface, and is specific in this embodiment curved surface regulating block 7 is hollow quarter cylinder, second spout 71 extends to the top of face of cylinder by the bottom spiral of face of cylinder. The sliding adjusting block 6 is provided with a convex block 62 matched with the second sliding groove 71. Optionally, the number of the second sliding grooves 71 is one or more, in this embodiment, the number of the second sliding grooves 71 is preferably three, and three second sliding grooves 71 are arranged in parallel. The second sliding groove 71 is a T-shaped groove, and the protruding block 62 is a T-shaped block matched with the second sliding groove. When the screw rod 2 drives the sliding adjusting block 6 to move up and down, due to the limiting effect of the spiral second sliding groove 71, the sliding adjusting block 6 can rotate around the curved surface adjusting block 7 at the same time, and therefore the change of the splicing arc angle of the first box body and the second box body is achieved. Further, as shown in fig. 1 and 3, the surface of the sliding adjusting block 6 on which the protruding block 62 is arranged is an inward-concave arc surface, the surface of the curved adjusting block 7 on which the second sliding groove 71 is arranged is an outward-convex arc surface, and the outward-convex arc surface is embedded in the inward-concave arc surface, so that when the included angle between the first box body and the second box body is 180 degrees, the curved adjusting block 7 is also located in the accommodating cavity of the base 1 as the sliding adjusting block 6.
Evenly be provided with ten first pits 12 around the screw rod mounting hole 11 on base 1 upper portion, the end connection of screw rod 2 has a knob 3, knob 3 with 2 tops of screw rod are fixed through the pin, the bottom of screw rod 2 is fixed through locking screw 21. A first wave ball screw 4 is fixed on the bottom surface of the knob 3, namely the side surface of the knob 3 adjacent to the base 1, and the end part of the first wave ball screw 4 is matched with the first concave pit 12. The knob 3 drives the screw rod 2 to rotate for one circle, the radian between the sliding adjusting block 6 and the curved surface adjusting block 7 changes by 1 degree, and therefore when the end of the first wave ball screw 4 is clamped into each first concave pit 12, the radian of the display screen changes by 0.1 degree.
As shown in fig. 4, two rows of left and right second concave recesses 51 are formed in the side surface of the sliding plate 5 close to the sliding adjusting block 6 (i.e., the back surface of the sliding plate 5), and the two rows of second concave recesses 51 are vertically staggered from each other; two second wave ball screws 63 are fixed on the side surface of the sliding adjusting block 6 close to the sliding plate 5, and the two wave ball screws respectively correspond to the two rows of second concave pits 51. Two second wave ball screws 63 on the sliding adjusting block 6 can only be clamped in the second concave pits 51 of one row by one second shifting ball screw, the other second wave ball screw 63 is arranged between the two concave pits of the other row, and when the sliding adjusting block 6 moves continuously, the two second wave ball screws 63 can be clamped in the corresponding second concave pits 51 in turn. The distance between two adjacent second concave pits 51 in each row is the distance of 2 degrees of rotation of the display screen, the two rows of second concave pits 51 are matched with each other, and each second wave ball screw 63 is clamped in the second concave pit 51, which represents that the radian of the display screen changes by 1 degree. The effect of the first wave ball screw 4 and the first concave pit 12 at the knob 3 is combined, and an operator can judge how much the display screen is adjusted according to the hand feeling.
The arc lock further comprises a fixing plate 8 and a vernier plate 9, the fixing plate 8 is covered outside the accommodating cavity of the base 1, a large long hole is formed in the middle of the fixing plate 8, a first scale 81 is arranged on the side edge of the long hole, and the unit of the first scale 81 is 1 degree; the vernier plate 9 is accommodated in the long hole, and the back of the vernier plate 9 is connected with the sliding adjusting block 6 through a screw and moves along with the sliding adjusting block 6. The front of vernier board 9 with the position that first scale 81 is adjacent is provided with second scale 91, the unit length of second scale 91 is 0.9 degree, consequently, the scale on fixed plate 8 and the vernier board 9 mutually supports, can form ten graduation's slide caliper, and this slide caliper can carry out accurate demonstration to the radian of current display screen.
In conclusion, the arc lock and the display screen provided by the invention have the advantages of simple structure, convenience in operation, high adjustment precision, good operation hand feeling and convenience in adjustment.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (8)
1. An arc lock is characterized by comprising a base, a sliding adjusting block, a screw and a curved surface adjusting block, wherein the base is provided with a sliding rail, and the sliding adjusting block is provided with a first sliding groove matched with the sliding rail; two ends of the screw rod are arranged on the base; the sliding adjusting block is provided with a threaded hole matched with the screw rod; the curved surface adjusting block comprises an arc surface, a second sliding groove is formed in the arc surface, the second sliding groove is spirally formed in the arc surface, and a protruding block matched with the second sliding groove is arranged on the sliding adjusting block;
the device comprises a base, and is characterized by further comprising a fixing plate and a vernier plate, wherein the fixing plate is fixed on the base, and a first scale is arranged on the fixing plate; the vernier plate is arranged on the side edge of the fixed plate and is fixedly connected with the sliding adjusting block, a second scale is arranged on the vernier plate, and the unit length of the second scale is 9/10 of that of the first scale;
the number of the second sliding grooves is more than one, and the more than one second sliding grooves are parallel to each other.
2. The arc lock of claim 1, wherein the base is provided with a screw mounting hole, the screw is inserted into the screw mounting hole, and ten first concave pits are uniformly formed around the screw mounting hole; the end part of the screw rod is fixedly connected with a knob, a first wave ball screw is fixed on the side face, close to the base, of the knob, and the end part of the first wave ball screw is matched with the first concave pit.
3. The arcuate lock as defined in claim 1, wherein said curved surface adjustment block is a quarter cylinder and said second runner extends helically from the bottom of the cylindrical surface to the top of the cylindrical surface.
4. The arcuate lock as defined in claim 1, further comprising a slider fixedly attached to said base, said slide track being disposed on said slider; two rows of second concave pits are arranged on the side surface, close to the sliding adjusting block, of the sliding plate, and the two rows of second concave pits are staggered in the moving direction of the sliding adjusting block; and two second wave ball screws are fixed on the side surface of the sliding adjusting block close to the sliding plate and respectively correspond to the two rows of second pits.
5. A display screen, characterized by comprising the arc lock of any one of claims 1-4, and further comprising a first box and a second box, wherein the base of the arc lock is arranged on the first box, and the curved surface adjusting block is connected with the second box.
6. The display screen of claim 5, wherein the base is disposed at a top corner of the first housing, and the curved surface adjustment block is connected to a top corner of the second housing.
7. The display screen of claim 5, wherein the curved surface adjustment block further comprises a fixed plane, and the fixed plane is provided with a connecting hole; the second box body is connected with the curved surface adjusting block through a screw rod.
8. The display screen of claim 7, wherein the connection hole is a conical connection hole, the screw is a conical screw, and an annular groove is formed in the middle of the conical screw; the second box body is provided with a conical screw mounting hole, a limit screw is arranged on the side wall of the conical screw mounting hole, and the limit screw is matched with the annular groove and used for limiting the conical screw in the conical screw mounting hole to prevent the conical screw from falling off.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710903800.8A CN107588065B (en) | 2017-09-29 | 2017-09-29 | Arc lock and display screen |
| PCT/CN2018/072450 WO2019061952A1 (en) | 2017-09-29 | 2018-01-12 | Arc-shaped lock and display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710903800.8A CN107588065B (en) | 2017-09-29 | 2017-09-29 | Arc lock and display screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107588065A CN107588065A (en) | 2018-01-16 |
| CN107588065B true CN107588065B (en) | 2020-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710903800.8A Active CN107588065B (en) | 2017-09-29 | 2017-09-29 | Arc lock and display screen |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107588065B (en) |
| WO (1) | WO2019061952A1 (en) |
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| CN207539131U (en) * | 2017-09-29 | 2018-06-26 | 深圳市洲明科技股份有限公司 | A kind of arc lock and display screen |
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| Publication number | Publication date |
|---|---|
| CN107588065A (en) | 2018-01-16 |
| WO2019061952A1 (en) | 2019-04-04 |
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