Transparent flexible screen three-bending hinge structure

Abstract

The utility model relates to flexible display device support equipment technical field provides a kind of transparent flexible screen three bending pivot structure, including fixed frame;Flexible support arm is provided with two, and respectively through the first rotating shaft and the second rotating shaft being set in one side rotationally connected on fixed frame, and the top of second rotating shaft is equipped with driving motor;Dust cover, installation in the side of fixed frame close to first rotating shaft and second rotating shaft;Lubricating part, provided with two, respectively installed in the both ends of first rotating shaft and second rotating shaft;Collecting part, installation in the bottom of dust cover;Wherein, the both ends of first rotating shaft and second rotating shaft are respectively provided with first gear and second gear, and first gear and second gear mutually cooperate.The utility model is through setting lubricating part, collecting part and other structures, not only realizes the automatic lubrication effect of device, also improves the environmental adaptability and stability of device through multiple protection structure, prolongs service life.

Description

Technical Field

[0001] This utility model relates to the field of flexible display device support equipment technology, and in particular to a transparent flexible screen three-bend pivot structure. Background Technology

[0002] Transparent flexible screens, with their light transmittance and shape flexibility, are widely used in public settings for multi-mode displays using a three-fold structure. Their hinge system is the core component ensuring smooth screen folding. Existing three-fold hinges typically consist of a base, an arc-shaped swing arm, a housing connecting rod, and a co-moving component. Multi-directional folding is achieved through the cooperation of guide rails and slide rails, and must match the screen's teardrop or horseshoe-shaped bending shape to avoid pulling damage to the flexible substrate during folding.

[0003] However, when such equipment is installed and used at high places such as shopping mall atriums and plaza pillars, it faces many technical challenges: dust, moisture, and restaurant fumes in public areas can easily penetrate the gaps in the hinge, causing wear on the guide rails and slide rails, oxidation of metal components, and requiring frequent maintenance; the three-bend hinge structure is compact and has high sealing requirements, and cleaning and lubrication require disassembling the protective structure; the high-suspension installation limits the operating space, and conventional tools are difficult to adapt; in addition, the large-size transparent flexible screen substrate is sensitive to bending precision, and hinge jamming can easily cause stress concentration on the screen, forming creases or circuit damage, and the cost of fault repair is high in high-suspension scenarios. Utility Model Content

[0004] The purpose of this invention is to solve the problems of high maintenance difficulty, poor environmental adaptability, and insufficient operational stability in existing technologies in public settings.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a transparent flexible screen three-bend rotating shaft structure, including a fixed frame; two flexible support arms, which are rotatably connected to the fixed frame via a first rotating shaft and a second rotating shaft respectively located on one side, and a drive motor is installed on the top of the second rotating shaft; a dust cover, installed on the side of the fixed frame near the first rotating shaft and the second rotating shaft; two lubricating components, which are respectively installed at both ends of the first rotating shaft and the second rotating shaft; and a collection component, installed at the bottom of the dust cover; wherein, a first gear and a second gear are respectively provided at both ends of the first rotating shaft and the second rotating shaft, and the first gear and the second gear cooperate with each other.

[0006] The technical effect of adopting the above-mentioned further solution is as follows: the two flexible support arms are rotatably connected to the fixed frame through the first and second rotating shafts set on one side. In use, the device only needs to be installed at the flexible screen to be bent, and the two flexible support arms are installed on both sides of the screen bending point. Through the cooperation of the first gear and the second gear, the first and second rotating shafts are rotated synchronously, thereby driving the two flexible support arms to rotate synchronously and perform bending operation with the flexible screen. During this process, the lubricating components are installed at the first and second gears at both ends of the first and second rotating shafts, which can automatically lubricate the first and second gears in real time. At the same time, the collecting component is used to collect the lubricant dripping from the lubricating components during lubrication.

[0007] In a preferred embodiment, the lubricating component includes: a mounting box, which is connected to one side of the dust cover; and a lubricating gear, which is rotatably mounted in the mounting box and cooperates with the first gear; wherein, the mounting box has a slot for the lubricating gear to pass through on the side near the first rotating shaft and the second rotating shaft.

[0008] The technical effect of adopting the above-mentioned further solution is that, through the mutual cooperation between the lubrication gear and the first gear, and the mutual cooperation between the first gear and the second gear, when the second gear rotates, it can mesh with the first gear and rotate synchronously, thereby driving the lubrication gear to rotate synchronously, providing a basis for subsequent lubrication operations.

[0009] In a preferred embodiment, the lubricating component further includes: an oil reservoir bag installed on the inner wall of the mounting box, with an oil inlet at its upper end; and multiple nozzles installed on the oil reservoir bag, with their ends facing the lubrication gear; wherein the oil reservoir bag is made of rubber material.

[0010] The technical effect of adopting the above-mentioned further solution is that the oil storage bag is made of rubber material and has high resilience. Simply by squeezing the oil storage bag, the lubricant inside can be sprayed onto the lubrication gear through the nozzle. Then, through the meshing action between the lubrication gear, the first gear, and the second gear, the first gear and the second gear are fully lubricated, reducing the frequency of subsequent manual maintenance.

[0011] In a preferred embodiment, the lubricant further includes: a shaped connecting block connected to the second rotating shaft and capable of rotating synchronously with the second rotating shaft; a connecting column installed at the end of the shaped connecting block and non-concentrically positioned with respect to the connection point between the shaped connecting block and the second rotating shaft; a connecting sleeve rotatably fitted onto the outside of the connecting column; and a connecting column movably installed in a through hole in the mounting box, with one end connected to the outside of the connecting sleeve and the other end extending into the interior of the mounting box and connected to a rubber hammer; wherein the rubber hammer is located on one side of the oil storage bag.

[0012] The technical effect of adopting the above-mentioned further solution is that, due to the non-concentric arrangement between the connecting column and the second rotating shaft, when the second rotating shaft rotates synchronously with the irregular connecting block, the connecting column can rotate around the axis of the second rotating shaft under the action of the connecting column and the connecting sleeve. This allows the connecting column, along with the rubber hammer, to continuously squeeze and hammer the oil storage bag under the limiting action of the through hole, promoting the lubricant in the oil storage bag to be sprayed out through the nozzle onto the lubrication gear, thus realizing the linkage between the bending action of the device and the lubrication effect.

[0013] In a preferred embodiment, the lubricant further includes a wear-resistant sleeve, which is installed on the inner end face of the through hole.

[0014] The technical effect of adopting the above-mentioned further solution is that the wear-resistant sleeve installed in the through hole can reduce the friction generated by the movement of the connecting column in the through hole, extend the service life of the device, and also reduce the generation of noise.

[0015] In a preferred embodiment, the collecting component includes: a collecting trough installed at the bottom of the dust cover, with its bottom extending through the bottom of the dust cover and downward; and a collecting box installed below the dust cover, with its top communicating with the collecting trough; wherein the collecting trough is funnel-shaped, wider at the top and narrower at the bottom.

[0016] The technical effect of adopting the above-mentioned further solution is that the funnel-shaped collection groove, which is wider at the top and narrower at the bottom, can effectively collect the lubricating oil dripping from the device during the lubrication process, and then collect it by the collection box.

[0017] In a preferred embodiment, the collection component further includes: two limiting blocks installed on the bottom sides of the dust cover; limiting guide grooves opened on the upper sides of the collection box; and a handle installed on one side of the collection box; wherein the limiting guide grooves and the limiting blocks cooperate with each other.

[0018] The technical effect of adopting the above-mentioned further solution is that the collection box can be quickly and easily installed at the bottom of the dust cover through the cooperation of the limiting block and the limiting guide groove. If it is necessary to remove the collection box to process the lubricant collected therein, the collection box can be removed with the help of the handle.

[0019] In a preferred embodiment, the collection device further includes: a gravity sensor installed at the bottom of the collection box; and a warning light disposed on one side of the collection box; wherein the warning light and the gravity sensor are electrically connected.

[0020] The technical effect of adopting the above-mentioned further solution is that when the gravity sensor detects that the weight of the lubricant collected in the collection box reaches the threshold, an alarm light is emitted through an electrical connection to remind the user to remove the collection box in time for processing.

[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0022] 1. This utility model utilizes a linkage structure of bending and lubrication. When the drive motor rotates the second rotating shaft, the eccentric connecting column drives the rubber hammer to reciprocate and squeeze the oil storage bag via a connecting column. Lubricant is precisely sprayed onto the gears through a nozzle, achieving comprehensive lubrication through gear meshing without manual intervention. The oil filling port design of the oil storage bag facilitates rapid oil replenishment, and the collection component centrally recovers waste liquid, significantly reducing maintenance frequency and operational difficulty, making it suitable for high-frequency usage scenarios such as shopping malls and plazas.

[0023] 2. The dust cover of this utility model can block external dust and prevent impurities from affecting gear transmission; the wear-resistant sleeve inside the through hole reduces friction in the connecting column movement, reducing noise and wear. The funnel-shaped collection trough and detachable collection box accurately recover dripping lubricant, preventing internal contamination of the equipment; the gravity sensor and warning light are linked to promptly remind users to clean the waste liquid and prevent the collection box from loosening due to overload. These multiple design features enable the device to operate stably in complex public environments, extending its service life. Attached Figure Description

[0024] Figure 1 A three-dimensional structural diagram of a transparent flexible screen with a three-bend rotating shaft structure provided by this utility model;

[0025] Figure 2 A rear view schematic diagram of a transparent flexible screen with a three-bend rotating shaft structure provided by this utility model;

[0026] Figure 3 An enlarged structural diagram of a lubricant component for a transparent flexible screen with a three-bend rotating shaft structure provided by this utility model;

[0027] Figure 4A partially enlarged structural diagram of a transparent flexible screen with a three-bend rotating shaft structure provided by this utility model;

[0028] Figure 5 This is an enlarged structural diagram of a collector component with a transparent flexible screen three-bend rotating shaft structure provided by this utility model.

[0029] Legend:

[0030] 1. Fixing frame; 2. First rotating shaft; 3. Second rotating shaft; 4. First gear; 5. Second gear; 6. Drive motor; 7. Flexible support arm; 8. Mounting box; 9. Through hole; 10. Wear-resistant sleeve; 11. Lubricating gear; 12. Irregular connecting block; 13. Connecting column; 14. Connecting column; 15. Connecting sleeve; 16. Rubber hammer; 17. Oil collection bag; 18. Nozzle; 19. Oil filling port; 20. Dust cover; 21. Collection tank; 22. Collection box; 23. Limiting block; 24. Limiting guide groove; 25. Gravity sensor; 26. Warning light; 27. Handle. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Example 1:

[0033] Please see Figures 1-5 This embodiment provides a transparent flexible screen three-bend pivot structure with automatic lubrication function, the specific idea of ​​which is as follows:

[0034] A transparent flexible screen three-bend rotating shaft structure includes: a fixing frame 1, a pair of flexible support arms 7, a drive motor 6, a first rotating shaft 2, a second rotating shaft 3, a first gear 4 and a second gear 5, a dust cover 20, and two sets of lubricating components for automatic lubrication.

[0035] Among them, the fixed frame 1 serves as the installation base of the entire structure. One side of the fixed frame is connected to two flexible support arms 7 through the first rotating shaft 2 and the second rotating shaft 3, respectively, so that the flexible support arms 7 can rotate flexibly around the corresponding rotating shaft.

[0036] Meanwhile, a drive motor 6 is fixedly installed at the top of the second rotating shaft 3, which provides the power source for the rotation of the shaft.

[0037] In addition, to achieve synchronous transmission, the first rotating shaft 2 is equipped with a first gear 4 at both ends, and the second rotating shaft 3 is equipped with a second gear 5 at both ends. The first gear 4 and the second gear 5 are meshed to ensure the consistency of the rotation of the two rotating shafts.

[0038] The dust cover 20 is fixed to the side of the fixed frame 1 near the two sets of gears and the rotating shaft, forming protection for the internal transmission components.

[0039] It should be noted that there are two sets of lubricating components, which are respectively installed at both ends of the first rotating shaft 2 and the second rotating shaft 3.

[0040] As examples, in this embodiment, the lubricating components include: mounting box 8, lubrication gear 11, oil reservoir 17, oil inlet 19, nozzle 18, irregular connecting block 12, connecting column 13, connecting sleeve 15, through hole 9, wear-resistant sleeve 10, connecting column 14, and rubber hammer 16.

[0041] Among them, the mounting box 8 serves as the core mounting carrier and is connected and fixed to one side of the dust cover 20, so that the lubricating component and the gear structure being lubricated can form a tight fit.

[0042] Meanwhile, a lubrication gear 11 is rotatably installed inside the mounting box 8.

[0043] It should be noted that the mounting box 8 has an adapter slot on the side facing the first rotating shaft 2 and the second rotating shaft 3, through which the lubrication gear 11 meshes with the first gear 4.

[0044] In addition, an oil storage bag 17 made of rubber material is fixed on the inner wall of the mounting box 8. The oil storage bag 17 is used to store lubricant, and an oil filling port 19 is reserved at the upper end for easy replenishment of lubricant later.

[0045] Meanwhile, multiple nozzles 18 are connected to the outer surface of the oil storage bag 17.

[0046] It should be noted that the spray tip of all nozzles 18 is precisely aligned with the tooth surface area of ​​the lubricating gear 11.

[0047] In addition, in order to achieve the linkage between the lubrication action and the bending action, an irregularly shaped connecting block 12 is fixedly connected to the second rotating shaft 3.

[0048] It should be noted that the connecting block can rotate synchronously with the second rotating shaft 3.

[0049] The irregularly shaped connecting block 12 has a connecting post 13 installed at its end.

[0050] It should be noted that the installation position of the connecting column 13 is not concentric with the connection point of the irregular connecting block 12 and the second rotating shaft 3, forming an eccentric structure.

[0051] In addition, a connecting sleeve 15 is rotatably fitted on the outside of the connecting column 13, which can rotate freely relative to the connecting column 13.

[0052] The mounting box 8 has a through hole 9 on its side wall. A wear-resistant sleeve 10 is fixedly embedded in the inner end face of the through hole 9. The connecting column 14 is movably inserted into the wear-resistant sleeve 10 to achieve a movable connection with the mounting box 8.

[0053] One end of the connecting column 14 is fixed to the outer wall of the connecting sleeve 15, while the other end extends into the interior of the mounting box 8 and is fixedly connected to a rubber hammer 16.

[0054] It should be noted that the rubber hammer 16 is positioned opposite the side of the oil storage bag 17 to ensure that it can accurately act on the oil storage bag 17 during movement.

[0055] In this embodiment: When the drive motor 6 starts, it drives the second rotating shaft 3 to rotate. Through the meshing transmission of the second gear 5 and the first gear 4, the first rotating shaft 2 rotates synchronously. Since the two flexible support arms 7 are fixed to the first and second rotating shafts 3 respectively, the two support arms will rotate synchronously. After the flexible screen is installed between the two support arms, the three-fold action of the flexible screen can be realized, which meets the folding use requirements of the flexible screen device. During the transmission process, the second rotating shaft 3 drives the irregular connecting block 12 to rotate synchronously. Due to the eccentric setting of the connecting column 13, the connecting column 13 will drive the connecting column 14 to make reciprocating linear motion along the through hole 9 through the connecting sleeve 15. The rubber hammer 16 at the end of the connecting column 14 will continuously squeeze and hammer the oil storage bag 17. The oil storage bag 17, made of rubber material, has good elasticity. Under the squeezing action, the internal lubricant will be evenly sprayed onto the lubrication gear 11 through multiple nozzles 18. As the first gear 4 meshes and rotates with the lubrication gear 11, the lubricant is evenly transferred to the tooth surface of the first gear 4. Then, through the meshing of the first gear 4 and the second gear 5, the lubricant is further coated onto the second gear 5, achieving comprehensive lubrication of the two sets of gears and the connecting parts of the rotating shaft. This linkage lubrication design allows the equipment to automatically complete lubrication while performing bending operations, eliminating the need for frequent manual intervention and significantly reducing the equipment's maintenance costs and frequency.

[0056] Example 2:

[0057] like Figures 1-5 As shown, based on Embodiment 1, this embodiment provides a transparent flexible screen three-bend pivot structure with lubricant collection function, the specific idea of ​​which is as follows:

[0058] The transparent flexible screen's three-bend pivot structure also includes a collection component.

[0059] The collection component is installed in conjunction with the dust cover 20.

[0060] As examples, in this embodiment, the collection components include: a collection slot 21, a collection box 22, a limiting block 23, a limiting guide groove 24, a gravity sensor 25, a warning light 26, and a handle 27.

[0061] The collection trough 21 has an overall funnel-shaped structure that is wider at the top and narrower at the bottom.

[0062] It should be noted that the top of the collection tank 21 is fixedly installed on the bottom inner side of the dust cover 20, and the lower end of the collection tank 21 penetrates through the bottom of the dust cover 20 and extends downward to form a guide channel for the lubricant.

[0063] Meanwhile, the collection box 22 is located directly below the dust cover 20, and its top opening is fully connected to the lower outlet of the collection tank 21, ensuring that all the lubricant flowing down from the collection tank 21 can enter the collection box 22.

[0064] In addition, to facilitate the easy disassembly and secure installation of the collection box 22, a limiting block 23 is fixed on each side of the bottom of the dust cover 20.

[0065] Correspondingly, on the two side walls at the upper end of the collection box 22, there are limiting guide grooves 24 that are perfectly matched in size and shape with the limiting block 23.

[0066] It should be noted that, through the engagement of the limiting block 23 and the limiting guide groove 24, the collection box 22 can be quickly fixed under the dust cover 20.

[0067] In addition, a handle 27 is fixedly installed on one outer wall of the collection box 22 for easy gripping, so that the operator can easily pull out the collection box 22.

[0068] Meanwhile, a gravity sensor 25 is fixedly installed on the bottom inner side of the collection box 22 to detect the weight of the lubricant collected in the collection box 22 in real time.

[0069] The warning light 26 is installed on one side of the outer wall of the collection box 22 and is electrically connected to the gravity sensor 25 through a wire to form a linkage control between weight detection and warning.

[0070] In this embodiment: During lubrication, some lubricant drips from the gear surface due to gravity. The dripping area inside the dust cover 20 is relatively concentrated. The upper wide structure of the collection groove 21 maximizes coverage of this dripping area, while the lower narrow outlet guides the lubricant to quickly converge and flow into the collection box 22 below. This effectively prevents lubricant from dripping directly onto other components inside the equipment, preventing component failures caused by lubricant contamination and maintaining a clean internal environment. Furthermore, the cooperative structure of the limiting block 23 and the limiting guide groove 24 allows for tool-free installation and removal of the collection box 22. Operators can easily pull it out using the handle 27, significantly improving the convenience of lubricant cleaning. The gravity sensor 25 monitors the weight of the lubricant in the collection box 22 in real time. When the weight reaches a preset threshold, i.e., when the collection box 22 is close to overflowing, the gravity sensor 25 will send an electrical signal to the warning light 26, triggering the warning light 26 to light up. This visually reminds the operator to clean the lubricant in the collection box 22 in time, avoiding secondary pollution caused by lubricant overflow. It can also prevent the installation from becoming loose or damaged due to overload of the collection box 22, further improving the timeliness and convenience of equipment maintenance.

[0071] Working Principle: This device is a transparent flexible screen with a three-bend rotating shaft structure. During use, sufficient lubricant is first injected through the oil inlet 19 at the top of the oil storage bag 17. After observing that the oil storage bag 17 is full, the oil inlet 19 is closed to prevent leakage. When the device starts running, the drive motor 6 is turned on, driving the second rotating shaft 3 to rotate. This, in turn, drives the first gear 4 to rotate synchronously through the meshing second gear 5, causing the first rotating shaft 2 to follow suit. This, in turn, drives the two flexible support arms 7 to rotate synchronously around their respective rotating shafts. The flexible screen then completes the three-bend action as the support arms move. During this process, the second rotating shaft 3 drives the irregularly shaped connecting block 12 to rotate. Due to the eccentric setting of the connecting column 13, the connecting column 14 reciprocates along the wear-resistant sleeve 10 inside the through hole 9 under the drive of the connecting sleeve 15. The rubber hammer 16 continuously squeezes the oil storage bag 17, and the lubricant is sprayed through the nozzle 18 onto the lubrication gear 11, and then transmitted to the first gear 4 and the second gear 5 through gear meshing, achieving automatic lubrication.

[0072] During operation, the warning light 26 should be monitored in real time. When the lubricant in the collection box 22 reaches the preset threshold of the gravity sensor 25, the warning light 26 will illuminate. The motor must be turned off immediately, and the collection box 22 should be pulled out of the limit block 23 by holding the handle 27. After emptying the waste liquid, it should be reinstalled. During regular maintenance, lubricant should be added through the oil inlet 19, and the gear meshing and rotation of the rotating shaft should be checked to ensure long-term stable operation of the device and extend its service life.

[0073] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0074] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A transparent flexible screen three-bend pivot structure, comprising a fixing frame (1), characterized in that, The transparent flexible screen's three-bend hinge structure also includes: Two flexible support arms (7) are provided, and are rotatably connected to the fixed frame (1) by a first rotating shaft (2) and a second rotating shaft (3) respectively located on one side. A drive motor (6) is installed on the top of the second rotating shaft (3). A dust cover (20) is installed on the side of the fixed frame (1) near the first rotating shaft (2) and the second rotating shaft (3); Two lubricating components are provided, which are respectively installed at both ends of the first rotating shaft (2) and the second rotating shaft (3); The collection component is installed at the bottom of the dust cover (20); The first rotating shaft (2) and the second rotating shaft (3) are respectively provided with a first gear (4) and a second gear (5) at their two ends, and the first gear (4) and the second gear (5) cooperate with each other.

2. The transparent flexible screen three-bend pivot structure according to claim 1, characterized in that, The lubricating component includes: Mounting box (8) is connected to one side of the dust cover (20); The lubricating gear (11) is rotatably mounted in the mounting box (8) and cooperates with the first gear (4); The mounting box (8) has a slot on the side near the first rotating shaft (2) and the second rotating shaft (3) for the lubricating gear (11) to pass through.

3. The transparent flexible screen three-bend pivot structure according to claim 2, characterized in that, The lubricant also includes: An oil storage bag (17) is installed on the inner wall of the mounting box (8), and an oil filling port (19) is provided at its upper end. Multiple nozzles (18) are provided and are connected to the oil storage bag (17), with their ends facing the lubrication gear (11). The oil storage bag (17) is made of rubber material.

4. The transparent flexible screen three-bend pivot structure according to claim 3, characterized in that, The lubricant also includes: The irregular connecting block (12) is connected to the second rotating shaft (3) and can rotate synchronously with the second rotating shaft (3); A connecting post (13) is installed at the end of the irregular connecting block (12) and is not concentric with the connection point between the irregular connecting block (12) and the second rotating shaft (3); The connecting sleeve (15) is rotatably fitted onto the outside of the connecting post (13); The connecting column (14) is movably installed in the through hole (9) on the mounting box (8), and one end of it is connected to the outside of the connecting sleeve (15), while the other end extends into the inside of the mounting box (8) and is connected to a rubber hammer (16). The rubber hammer (16) is located on one side of the oil storage bag (17).

5. The transparent flexible screen three-bend pivot structure according to claim 4, characterized in that, The lubricant also includes: Wear-resistant sleeve (10) is installed on the inner end face of the through hole (9).

6. The transparent flexible screen three-bend pivot structure according to claim 1, characterized in that, The collection components include: A collection trough (21) is installed at the bottom of the dust cover (20), and its bottom extends through the bottom of the dust cover (20) and downwards; A collection box (22) is installed below the dust cover (20), and its top is connected to the collection trough (21); The collection trough (21) is funnel-shaped, wider at the top and narrower at the bottom.

7. The transparent flexible screen three-bend pivot structure according to claim 6, characterized in that, The collection device also includes: Two limit blocks (23) are provided and installed on both sides of the bottom of the dust cover (20); Limiting guide grooves (24) are provided on both sides of the upper end of the collection box (22); A handle (27) is attached to one side of the collection box (22); The limiting guide groove (24) and the limiting block (23) cooperate with each other.

8. The transparent flexible screen three-bend pivot structure according to claim 7, characterized in that, The collection device also includes: A gravity sensor (25) is installed at the bottom of the collection box (22); A warning light (26) is provided on one side of the collection box (22); The warning light (26) is electrically connected to the gravity sensor (25).

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