CN111627348A - Folding back frame and LED display - Google Patents
Folding back frame and LED display Download PDFInfo
- Publication number
- CN111627348A CN111627348A CN202010556328.7A CN202010556328A CN111627348A CN 111627348 A CN111627348 A CN 111627348A CN 202010556328 A CN202010556328 A CN 202010556328A CN 111627348 A CN111627348 A CN 111627348A
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- connecting rod
- led display
- display screen
- folding back
- frame
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- 230000000712 assembly Effects 0.000 claims abstract description 11
- 238000000429 assembly Methods 0.000 claims abstract description 11
- 239000003351 stiffener Substances 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000006978 adaptation Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 11
- 238000003860 storage Methods 0.000 abstract description 3
- 230000003014 reinforcing effect Effects 0.000 description 10
- 238000010276 construction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005267 amalgamation Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding 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
- 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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- 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
- F16B5/0004—Joining sheets, plates or panels in abutting relationship
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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
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses a folding back frame and an LED display, wherein the LED display is provided with the folding back frame, the folding back frame is provided with a plurality of support frames side by side, each support frame is formed by vertically splicing a plurality of connecting rod assemblies, each connecting rod assembly is provided with a vertical rod and at least three connecting rods which are arranged on the vertical rod and are kept relatively fixed, and the tail ends of the connecting rods are provided with connectors matched with an LED display screen. The connecting head is directly arranged on the back surface of the LED display screen to form a whole with the LED display screen, each connecting rod assembly is arranged on the back surface of the corresponding LED display screen firstly during installation, then the LED display screen and the connecting rod assemblies are spliced, the LED display screen on the upper layer can be supported by the LED display screen on the lower layer during assembly, the splicing of the LED display screen and the splicing of the folding back frame are carried out synchronously, the assembly efficiency can be effectively improved, and the installation difficulty can be reduced. And can pull down folding back of the body frame and receive when not using, convenient storage, the practicality is strong.
Description
Technical Field
The invention relates to a display device, in particular to a folding back frame and an LED display.
Background
LED display screen need be assembled a plurality of LED display screens together and form the LED display of suitable size when using, in order to realize the concatenation of LED display screen, generally build support back of the body frame earlier in the place, later install the LED display screen on the support back of the body frame again, the efficiency of construction is low, and construction cost is high. And need the staff to hold the LED display screen when the installation LED display screen, the installation degree of difficulty is big, and the human cost is high.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, in a first aspect, the invention provides a folding back frame, which can improve the assembly efficiency of an LED display screen and reduce the installation difficulty and the construction cost.
According to the folding back frame provided by the embodiment of the invention, a plurality of supporting frames are arranged side by side, the supporting frames are formed by vertically splicing a plurality of connecting rod assemblies, each connecting rod assembly is provided with a vertical rod and at least three connecting rods which are arranged on the vertical rod and are kept relatively fixed, and the tail ends of the connecting rods are provided with connectors matched with the LED display screen.
According to the embodiment of the invention, at least the following technical effects are achieved:
adopt the folding back of the body frame that above-mentioned structure set up, can form a whole with it through the back of connector direct mount LED display screen, install the back of the LED display screen that corresponds with every link assembly earlier in the installation, again with LED display screen and link assembly amalgamation, can carry the LED display screen on upper strata through the LED display screen of lower floor during the equipment, the assembling of LED display screen goes on with the assembling of folding back of the body frame in step, can effectively improve the packaging efficiency, reduce the installation degree of difficulty. And can pull down folding back of the body frame and receive when not using, convenient storage, the practicality is strong.
According to some embodiments of the present invention, the upright rod is sleeved with a first mounting ring and a second mounting ring, the connecting rod includes a first connecting rod, a second connecting rod and a third connecting rod, the first connecting rod and the second connecting rod are mounted on the first mounting ring, a projection of the first connecting rod and the second connecting rod on a horizontal plane forms an included angle smaller than 110 °, the third connecting rod is mounted on the second mounting ring, the third connecting rod and the second connecting rod are located on a same vertical plane, the end of the first connecting rod is provided with one of the connectors, and the ends of the second connecting rod and the third connecting rod are connected to the same connector.
According to some embodiments of the invention, the first link, the second link, and the third link are each a telescoping rod structure.
According to some embodiments of the invention, the upright is detachably connected between two adjacent connecting rod assemblies.
According to some embodiments of the invention, the plurality of the supporting frames are provided, a reinforcing rod is arranged between two adjacent supporting frames, and third mounting rings are arranged at two ends of the reinforcing rod and are sleeved on the vertical rods of the supporting frames through the third mounting rings.
According to some embodiments of the invention, the reinforcing bar is a telescopic bar structure and the third mounting ring is detachably arranged.
According to some embodiments of the invention, the folding back frame is further provided with a bottom frame, the bottom frame is fixedly connected with the connecting rod assembly positioned at the lowermost end, and a bearing platform for bearing the LED display screen is arranged at the upper end of the bottom frame.
According to some embodiments of the invention, the connector is a U-shaped structure.
In a second aspect, the invention provides an LED display, which is provided with the folding back frame and the plurality of LED display screens, wherein the number of the LED display screens corresponds to the number of the connecting rod assemblies and is connected with the connecting heads.
According to some embodiments of the invention, the number of the LED display screens is multiple, the back of each LED display screen is provided with a mounting frame, the mounting frame is provided with a plurality of mounting ports, the connector is connected with the mounting ports, the LED display screen at the upper end is borne on the LED display screen at the lower end of the LED display screen, and a connecting assembly is arranged between the two adjacent LED display screens at the upper end and the lower end and between the two adjacent LED display screens at the left end and the right end through the mounting ports.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a first structural schematic view of a support frame;
FIG. 2 is a schematic view of a second construction of the support frame;
fig. 3 is a third structural schematic diagram of the support frame.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 3, the present invention provides a foldable back frame, wherein a plurality of support frames are arranged side by side, each support frame is formed by vertically splicing a plurality of connecting rod assemblies, each connecting rod assembly is provided with a vertical rod 100 and at least three connecting rods which are arranged on the vertical rod 100 and are kept relatively fixed, and the tail ends of the connecting rods are provided with connectors 106 adapted to an LED display screen.
Adopt the folding back of the body frame that above-mentioned structure set up, can form a whole with it through the back of connector 106 direct mount LED display screen, install the back of the LED display screen that corresponds with every link assembly earlier in the installation, again with LED display screen and link assembly amalgamation, can carry the LED display screen on upper strata through the LED display screen of lower floor during the equipment, the assembling of LED display screen goes on with the assembling of folding back of the body frame in step, can effectively improve the packaging efficiency, reduce the installation degree of difficulty. And can pull down folding back of the body frame and receive when not using, convenient storage, the practicality is strong.
The connecting rods are relatively fixed, namely the relative positions of the connecting rods are fixed after the LED display screen is connected.
Referring to fig. 1 and 3, in some embodiments of the present invention, a first mounting ring 101 and a second mounting ring 102 are sleeved on an upright 100, the connecting rods include a first connecting rod 103, a second connecting rod 104 and a third connecting rod 105, the first connecting rod 103 and the second connecting rod 104 are mounted on the first mounting ring 101, a projection of the first connecting rod 103 and the second connecting rod 104 on a horizontal plane forms an included angle smaller than 110 °, the third connecting rod 105 is mounted on the second mounting ring 102, the third connecting rod 105 and the second connecting rod 104 are located on the same vertical plane, a connecting head 106 is disposed at an end of the first connecting rod 103, and ends of the second connecting rod 104 and the third connecting rod 105 are connected to the same connecting head 106. Because the first connecting rod 103 and the second connecting rod 104 are both arranged on the first mounting ring 101, the connection points of the first connecting rod and the second connecting rod are fixed, the tail ends of the second connecting rod 104 and the third connecting rod 105 are connected with the same connector 106, and the other end of the third connecting rod 105 is connected with the second mounting ring 102, so that the relative positions of the three connecting rods are fixed, a plurality of triangular support structures can be formed when the LED display screen is connected, and the support is stable. In addition, since the first connecting rod 103, the second connecting rod 104 and the third connecting rod 105 are relatively fixed in the embodiment, the LED display screen is conveniently butted in the assembling process, and the two connectors 106 can be aligned only by moving the LED display screen to the mounting position, which is beneficial to improving the assembling efficiency. Two connectors 106 are located in different horizontal planes to improve the installation stability of the LED display screen.
Obviously, the longer the connecting rod is, the greater the distance from the upright 100 to the LED display screen is, and the higher the corresponding structural stability is, considering that it is not convenient to adjust the distance between the upright 100 and the LED display screen in the above embodiments, in some embodiments, the first connecting rod 103, the second connecting rod 104 are hinged to the first mounting ring 101, the third connecting rod 105 is hinged to the second mounting ring 102, and meanwhile, the first connecting rod 103, the second connecting rod 104 and the third connecting rod 105 are all telescopic rod structures. So can adjust the distance between pole setting 100 and the LED display screen through the flexible and rotation of connecting rod, the connection effect point of connecting rod is unchangeable simultaneously, consequently can form a plurality of triangle stable in structure supports the LED display screen.
In order to achieve flexible splicing, in some embodiments of the invention, the upright 100 between two adjacent link assemblies is detachably connected. The connection mode can be set by using related structures in the common knowledge, such as a sleeve nut, and is not described in detail herein.
In some embodiments of the present invention, a plurality of support frames are provided, a reinforcing rod 107 is provided between two adjacent support frames, and a third mounting ring 108 is provided at both ends of the reinforcing rod 107 and is sleeved on the upright 100 of the support frame through the third mounting ring 108. The arrangement of the reinforcing rod 107 can improve the structural strength and stability between the supporting frames, and is favorable for ensuring the splicing effect between the LED display screens.
Because the LED display screen is connected by using the connecting parts during splicing, a splicing gap exists, and therefore, in the actual work, the bending phenomenon can be inevitably generated. And the distance between two adjacent support frames can effectively be adjusted in the setting of stiffener 107, consequently every LED display screen all can adjust to realize the planarization of LED display screen concatenation.
The third mounting ring 108 is sleeved on the vertical rod 100, so that the third mounting ring 108 can be detached, and the reinforcing rod 107 can be detached when only a plurality of connecting rod assemblies are vertically arranged (namely, only one supporting frame is arranged), so that the weight is reduced.
On this basis, in order to accommodate telescopically arranged links, in some embodiments, the reinforcing rod 107 is also arranged as a telescopic rod structure.
And in order to improve the dismounting efficiency, the reinforcing rod 107 and the third mounting ring 108 are detachably arranged. This allows the third collar 108 to be custom fitted to the pole 100, with the stiffener 107 being removed. Obviously, the first mounting ring 101 and the second mounting ring 102 can also be customized on the pole 100. Specifically, the first mounting ring 101, the second mounting ring 102 and the third mounting ring 108 may be directly fixed on the vertical rod 100 by welding, screwing, or the like, or may be rotatably sleeved on the vertical rod 100 by assembling, and a specific customization manner thereof is common knowledge and will not be described in detail herein.
In some embodiments of the invention, the folding back frame is further provided with a bottom frame, the bottom frame is fixedly connected with the connecting rod assembly positioned at the lowermost end, and the upper end of the bottom frame is provided with a bearing platform for bearing the LED display screen. When the LED display screen is installed, the bottom frame and a connecting rod component are assembled and fixed with the LED display screen, and then the LED display screen is sequentially assembled on the bottom frame and the connecting rod component. Accept the LED display screen of below through the chassis like this, can protect the LED display screen, avoid direct butt ground impaired.
On this basis, can set up lockable gyro wheel in the below of chassis to the removal of being convenient for.
Considering that the LED display screen is in order to realize the concatenation, generally be provided with the mounting bracket at the back, for the convenience is connected the LED display screen. In some embodiments of the present invention, the connecting head 106 is a U-shaped structure, and the U-shaped structure is adapted to the LED display screen, so as to implement the installation of the LED display screen by connecting the mounting frame. In actual connection, only the cross bolt structure needs to be arranged on the connector 106 and the mounting frame in a penetrating manner. The transverse bolt structure is preferably a non-revolving body structure so as to improve the connection stability of the LED display screen.
In addition, the invention further provides an LED display, which is provided with the folding back frame and a plurality of LED display screens described in any of the above embodiments, wherein the number of the LED display screens corresponds to the number of the connecting rod assemblies and is connected with the connecting head 106.
Specifically, the LED display screen is provided with a plurality ofly, and the back of LED display screen is provided with the mounting bracket, has seted up a plurality of installing ports on the mounting bracket, and the installing port is connected to connector 106, and the LED display screen that is located the upper end bears on the LED display screen of its lower extreme to be provided with coupling assembling through the installing port between adjacent, about, two adjacent LED display screens from top to bottom. A reinforcing rod 107 is arranged between the two adjacent left and right supporting frames.
Adopt the LED display that above-mentioned structure set up, directly connect the LED display with link assembly, realize the equipment through the concatenation of pole setting 100, the concatenation between the LED display, build earlier among the more traditional structure and support the mode of carrying the back of the body frame and installing the LED display screen again, be favorable to improving dismouting efficiency, reduction in production cost and human cost, the practicality is strong.
In some embodiments of the invention, the connecting assembly comprises a sleeve and a connecting piece, locking openings are formed in two sides of the sleeve, and the connecting piece penetrates through the mounting opening and is clamped with the locking openings, so that the connection between two adjacent LED display screens is realized.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A folding back frame is characterized in that: folding back of the body frame is provided with a plurality of support frame side by side, the support frame is formed by the vertical concatenation of a plurality of link assembly, link assembly be provided with pole setting and at least three install in keep relatively fixed's connecting rod in the pole setting, the end of connecting rod be provided with the connector of LED display screen adaptation.
2. The folding back frame of claim 1, wherein: the cover is equipped with first collar and second collar in the pole setting, the connecting rod includes first connecting rod, second connecting rod and third connecting rod, first connecting rod with the second connecting rod is installed on first collar, just first connecting rod with the second connecting rod becomes one and is less than 110 contained angle in the projection of horizontal plane, the third connecting rod is installed on the second collar, and the third connecting rod with the second connecting rod is located same vertical face, the end of first connecting rod is provided with one the connector, the second connecting rod with the end-to-end connection of third connecting rod is same the connector.
3. The folding back frame of claim 2, wherein: the first connecting rod, the second connecting rod are hinged with the first mounting ring, the third connecting rod is hinged with the second mounting ring, and the first connecting rod, the second connecting rod and the third connecting rod are telescopic rod structures.
4. The folding back frame of claim 1, wherein: the vertical rods between the two adjacent connecting rod assemblies are detachably connected.
5. The folding back frame of claim 1, wherein: the support frame is provided with a plurality ofly, adjacent two be provided with the stiffener between the support frame, the both ends of stiffener are provided with the third collar and pass through the third collar cup joints on the support frame the pole setting.
6. The folding back frame of claim 5, wherein: the stiffener is of a telescopic rod structure, and the third mounting ring is detachably arranged.
7. The folding back frame of claim 1, wherein: the folding back frame is further provided with a bottom frame, the bottom frame is fixedly connected with the connecting rod assembly located at the lowermost end, and a bearing platform used for bearing the LED display screen is arranged at the upper end of the bottom frame.
8. The folding back frame of claim 1, wherein: the connector is of a U-shaped structure.
9. An LED display, characterized by: the folding back frame of any one of claims 1 to 8 and a plurality of LED display screens are arranged, wherein the number of the LED display screens corresponds to that of the connecting rod assemblies and is connected with the connecting heads.
10. The LED display of claim 9, wherein: the LED display screen is provided with a plurality ofly, the back of LED display screen is provided with the mounting bracket, a plurality of installing ports have been seted up on the mounting bracket, the connector is connected the installing port is located the upper end the LED display screen bears in its lower extreme on the LED display screen to adjacent, control two from top to bottom pass through between the LED display screen the installing port is provided with coupling assembling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010556328.7A CN111627348B (en) | 2020-06-17 | 2020-06-17 | Folding back frame and LED display |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010556328.7A CN111627348B (en) | 2020-06-17 | 2020-06-17 | Folding back frame and LED display |
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| CN111627348A true CN111627348A (en) | 2020-09-04 |
| CN111627348B CN111627348B (en) | 2022-09-20 |
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| CN202010556328.7A Active CN111627348B (en) | 2020-06-17 | 2020-06-17 | Folding back frame and LED display |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113674632A (en) * | 2021-07-13 | 2021-11-19 | 深圳市雷凌显示技术有限公司 | Intermediate strut assembly |
| CN113674630A (en) * | 2021-07-13 | 2021-11-19 | 深圳市雷凌显示技术有限公司 | Support rod assembly |
| CN113674634A (en) * | 2021-07-13 | 2021-11-19 | 深圳市雷凌显示技术有限公司 | LED display screen |
| CN113674633A (en) * | 2021-07-13 | 2021-11-19 | 深圳市雷凌显示技术有限公司 | Splicing screen |
| CN113685662A (en) * | 2021-07-13 | 2021-11-23 | 深圳金立翔视效科技有限公司 | Supporting mechanism and display screen |
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| CN113674632A (en) * | 2021-07-13 | 2021-11-19 | 深圳市雷凌显示技术有限公司 | Intermediate strut assembly |
| CN113674630A (en) * | 2021-07-13 | 2021-11-19 | 深圳市雷凌显示技术有限公司 | Support rod assembly |
| CN113674634A (en) * | 2021-07-13 | 2021-11-19 | 深圳市雷凌显示技术有限公司 | LED display screen |
| CN113674633A (en) * | 2021-07-13 | 2021-11-19 | 深圳市雷凌显示技术有限公司 | Splicing screen |
| CN113685662A (en) * | 2021-07-13 | 2021-11-23 | 深圳金立翔视效科技有限公司 | Supporting mechanism and display screen |
| CN113685662B (en) * | 2021-07-13 | 2023-08-15 | 深圳金立翔视效科技有限公司 | Supporting mechanism and display screen |
| CN113674633B (en) * | 2021-07-13 | 2024-01-26 | 深圳市雷凌显示技术有限公司 | Spliced screen |
| CN113674632B (en) * | 2021-07-13 | 2024-01-26 | 深圳市雷凌显示技术有限公司 | Middle support rod assembly |
| CN113674634B (en) * | 2021-07-13 | 2024-02-02 | 深圳市雷凌显示技术有限公司 | LED display screen |
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