Panel lifting opening and closing mechanism and electronic equipment

Abstract

The utility model relates to the technical field of opening and closing structures, in particular to a panel lifting opening and closing mechanism and electronic equipment, the opening and closing mechanism comprises a transmission assembly, two sides of the transmission assembly are respectively provided with a slide rail and a lifting assembly, the lifting assembly is in transmission connection with the transmission assembly, and the lifting assemblies on two sides synchronously move along the slide rail through the transmission assembly; the lifting assembly is connected with the mounting plate, the mounting plate is hinged to the lifting assembly, the mounting plate is used for being connected with a panel, and an elastic piece is arranged between the mounting plate and the lifting assembly. According to the scheme, the opening and closing mode is basically parallel to the plane where the lens of the electronic equipment is located, the occupied space in front of the lens when the panel is opened and closed is reduced, the contact size caused by collision damage of the panel is reduced, and the overall shape of the electronic equipment can be more concise.

Description

Technical Field

[0001] This utility model relates to the field of opening and closing structure technology, specifically to a panel lifting and opening mechanism and electronic equipment. Background Technology

[0002] A projector, also known as a projector, is a device that projects images or videos onto a screen. Laser projectors, as a type of projector, use lasers as a light source to project images or videos onto a screen, wall, or other flat surface. Compared to traditional lamp projectors, laser projectors have significant advantages in brightness, color, and lifespan. The projector panel is used to cover the projector lens when the projector is not in use. Common panels are directly clipped onto the front of the lens; these panels need to be manually removed, and are easily lost or forgotten to be replaced after use.

[0003] Chinese patent CN202322988284.7 discloses an information service communication management projector. The projector body has symmetrically fixed connecting seats on both sides of its front end. A front cover plate is rotatably connected to the top of the outer casing. This invention uses a rotating connecting screw to drive the projector body within the mounting cavity. The movement of the projector body, along with the movable connection between the connecting seats and the movable linkage, causes the front cover plate to rotate, exposing the front end of the projector body for easy projection. The movement of the projector body causes the front cover plate to flip, and with the sealing plate at its edge, the end of the projector body is sealed, protecting the outer side of the projector body from damage caused by dust and other debris. The design is convenient, facilitating both projector deployment and storage when not in use. However, the end cover (i.e., the panel) in this design separates and closes from the lens by flipping, resulting in an overhanging structure in front of the lens after opening and closing, which needs improvement.

[0004] This invention overcomes the shortcomings of the prior art and provides a panel lifting and opening mechanism and an electronic device, which can enable the panel of an electronic device, especially a projector, to move from the side of the lens to the front of the lens to block or expose the lens. Utility Model Content

[0005] The main purpose of this utility model is to provide a panel lifting and opening mechanism, including a transmission component. The transmission component has slide rails and lifting components on both sides. The lifting components are connected to the transmission component in a transmission manner. The lifting components on both sides move synchronously along the slide rails through the transmission component.

[0006] The lifting assembly is connected to the mounting plate, the mounting plate and the lifting assembly are hinged together, the mounting plate is used to connect the panel, and an elastic element is provided between the mounting plate and the lifting assembly;

[0007] When the lifting assembly moves the mounting plate within the first interval, the elastic element causes the mounting plate to be at a first angle; when the lifting assembly moves the mounting plate within the second interval, the lifting assembly compresses the elastic element to generate elastic force, and the elastic element causes the mounting plate to rotate around the hinge point by a predetermined angle to a second angle.

[0008] Optionally, the transmission assembly includes a transmission shaft with first gears at both ends, the first gears meshing with the front synchronous pulley in the lifting assembly, bearing seats at both ends of the transmission shaft for connecting electronic equipment, and a second gear at one end of the transmission shaft for transmission connection between the transmission shaft and the power source.

[0009] Optionally, the lifting assembly includes a front sliding block, a rear sliding block, a synchronization assembly, and a fixing plate;

[0010] The upper and lower edges of the fixed plate extend from the slide rails respectively. The front sliding block and the rear sliding block are respectively matched and connected to the slide rails. The synchronization component is connected to the transmission component. The synchronization component is connected to the rear sliding block. The synchronization component drives the rear sliding block to move along the slide rail. The rear sliding block pushes the front sliding block to move along the slide rail through the elastic element.

[0011] The mounting plate is hinged to the front sliding block, and the mounting plate is slidably connected to the rear sliding block. The elastic element is connected to the front sliding block and the rear sliding block respectively. The connection point between the elastic element and the rear movable block is located within the sliding range between the mounting plate and the rear movable block.

[0012] Optionally, the side of the mounting plate is provided with a sliding groove and a hinge position, the hinge position of the mounting plate is hinged to the front sliding block, and the sliding groove of the mounting plate is connected to the rear sliding block through a stud.

[0013] The elastic element is a torsion spring. After spring bushings are installed in the two round holes at both ends of the torsion spring, they are connected to the front sliding block and the rear sliding block, respectively.

[0014] Optionally, the front sliding block is provided with a pivot block, the pivot block is connected to the front sliding block by a stud, the hinge position of the mounting plate is hinged to the front sliding block by the pivot block, and one end of the torsion spring is connected to the front sliding block by a stud after the spring bushing is installed.

[0015] Optionally, the slide rail is provided with limiting protrusions at both ends to limit the movement range of the front moving block and the rear moving block;

[0016] When the torsion spring is in the relaxed state, the connection between the torsion spring and the rear moving block is located at the bottom of the slide groove, and the mounting plate is at the first angle.

[0017] When the front moving block is at the top of the slide rail, the rear moving block continues to move closer to the front moving block to compress the torsion spring. During the compression of the torsion spring, the connection between the torsion spring and the rear moving block moves toward the top of the slide groove, and the mounting plate rotates around the hinge point to a predetermined angle to a second angle.

[0018] Optionally, a rubber strip is provided between the front sliding block and the slide rail, and a rubber strip is provided between the rear sliding block and the slide rail.

[0019] Optionally, the synchronization component includes a front synchronization pulley, a rear synchronization pulley, and a synchronization belt;

[0020] The fixed plate has a front synchronous pulley and a rear synchronous pulley at its front and rear ends, respectively. The front synchronous pulley meshes with the first gear in the transmission assembly.

[0021] The timing belt wraps around the front and rear timing pulleys, and the front and rear timing pulleys rotate synchronously via the timing belt.

[0022] The timing belt is equipped with teeth that mesh with the front or rear timing pulley.

[0023] Optionally, the rear sliding block is provided with a wire-locking block for fixed connection to the timing belt, and the wire-locking block is provided with a slot for matching and connecting with the locking teeth.

[0024] This utility model also provides an electronic device, which includes a lens and a panel lifting and opening mechanism as described above, wherein the panel in front of the lens is opened and closed by the panel lifting and opening mechanism.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The panel lifting and opening mechanism provided by this utility model connects the panel of the electronic device through a mounting plate. The slide rails are installed on both sides of the lens of the electronic device. The mounting plate moves up and down through the lifting component to realize the reciprocating movement of the panel between the side and the front of the electronic device.

[0027] When the lifting assembly moves along the slide rail within the second section, it compresses the elastic element to make the mounting plate at the second angle. During this process, the panel moves from the side of the lens of the electronic device to the front of the lens, and the panel blocks the lens. When the lifting assembly moves along the slide rail from the second section to the first section and continues to move, the elastic element makes the mounting plate return from the second angle to the first angle. During this process, the panel moves from the front of the lens of the electronic device to the side of the lens. Attached Figure Description

[0028] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0029] Figure 1 This is a schematic diagram of an embodiment of the panel lifting and opening mechanism of this utility model;

[0030] Figure 2 This is a perspective view of an embodiment of the panel lifting and opening mechanism of this utility model;

[0031] Figure 3 This is a partial enlarged view of embodiment A of the panel lifting and opening mechanism of this utility model;

[0032] Figure 4 This is a partial exploded view of an embodiment of the panel lifting and opening mechanism of this utility model;

[0033] Figure 5 This is a schematic diagram of the lifting and opening mechanism of the panel of this utility model.

[0034] Figure 6 This is a schematic diagram of the lifting and closing mechanism of the panel of this utility model.

[0035] Figure label:

[0036] 100-Transmission assembly; 110-Drive shaft; 120-First gear; 130-Bearing seat; 140-Second gear; 200-Slide rail; 210-Limiting protrusion; 300-Lifting assembly; 310-Front sliding block; 311-Rotating shaft block; 320-Rear sliding block; 321-Wire clamping block; 330-Synchronization assembly; 331-Front synchronous pulley; 332-Rear synchronous pulley; 333-Synchronization belt; 334-Clamping tooth; 340-Fixing plate; 350-Rubber strip; 400-Mounting plate; 410-Slide groove; 420-Hinge position; 500-Elastic element; 510-Spring bushing; 600-Stud. Detailed Implementation

[0037] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and similar expressions used in this specification are for illustrative purposes only. In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or implying the number of indicated technical features. Thus, unless otherwise stated, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "multiple" means two or more. The term "comprising" and any variations thereof mean non-exclusive inclusion, where one or more other features, integers, steps, operations, units, components, and / or combinations thereof may be present or added.

[0038] Furthermore, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; as a mechanical connection or an electrical connection; as a direct connection or an indirect connection through an intermediate medium, or as a connection within two components. All technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0039] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0040] like Figure 1-6 The diagram shown is a schematic representation of an embodiment of the panel lifting and opening mechanism provided by this utility model.

[0041] Please refer to Figure 1-6 This embodiment is mainly used for the lifting and opening of the front panel of electronic device lenses, and is especially suitable for the lifting and opening of the front panel of electronic devices such as projectors and laser projectors. The following embodiment is based on the application to projectors.

[0042] This embodiment includes a transmission assembly 100, with slide rails 200 and lifting assemblies 300 on both sides of the transmission assembly 100. The lifting assemblies 300 are connected to the transmission assembly 100, and the two lifting assemblies 300 move synchronously along the slide rails 200 via the transmission assembly 100. The lifting assemblies 300 are connected to a mounting plate 400, which is hinged to the lifting assemblies 300. The mounting plate 400 is used to connect the panel of an electronic device (e.g., the end cover of a projector), and an elastic element 500 is provided between the mounting plate 400 and the lifting assemblies 300.

[0043] Slide rails 200 are located on both sides of the projector lens and are on the same plane as the lens. A transmission assembly 100 is mounted on the projector. A panel connected to the mounting plate 400 can move from the side of the electronic device's lens to the front of the lens, or from the front of the electronic device's lens to the side of the lens.

[0044] Specifically, when the lifting assembly 300 moves the mounting plate 400 within the first interval, the elastic element 500 causes the mounting plate 400 to be at a first angle. This process is the panel opening process, where the panel connected to the mounting plate 400 is at a first angle to the plane where the lens is located, facilitating the panel to be moved away from in front of the lens.

[0045] When the lifting assembly 300 moves the mounting plate 400 within the second interval, the lifting assembly 300 compresses the elastic element 500 to generate elastic force. The elastic element 500 causes the mounting plate 400 to rotate around the hinge point by a predetermined angle to the second angle. This process is the panel closing process. The panel connected to the mounting plate 400 is parallel to the plane where the lens is located, and the panel is located in front of the lens, blocking the lens.

[0046] In one embodiment, the transmission assembly 100 includes a transmission shaft 110, with first gears 120 at both ends of the transmission shaft 110. The first gears 120 mesh with the front synchronous pulley 331 in the lifting assembly 300. The transmission shaft 110 drives the first gears 120 on both sides to rotate synchronously, thereby realizing the synchronous movement of the lifting assemblies 300 on both sides. Bearing seats 130 are provided at both ends of the transmission shaft 110, and the bearing seats 130 are used to connect the projector. A second gear 140 is provided at one end of the transmission shaft 110. The second gear 140 is used for the transmission connection between the transmission shaft 110 and the power source. The external power source is input through the second gear 140 to realize the power movement of the lifting assembly 300, thereby realizing the automatic lifting and opening / closing of the panel.

[0047] The drive shaft 110 is radially positioned by a flat engagement with the first gear 120 and the second gear 140, ensuring the synchronization of the first gear 120 on the drive shaft 110 with the front synchronous pulley 331 in the lifting assembly 300.

[0048] In one embodiment, the lifting assembly 300 includes a front sliding block 310, a rear sliding block 320, a synchronization assembly 330, and a fixing plate 340. The upper and lower edges of the fixing plate 340 respectively extend into slide rails 200, and the front sliding block 310 and the rear sliding block 320 are respectively matched and connected to the slide rails 200. The synchronization assembly 330 is drively connected to the transmission assembly 100. The synchronization assembly 330 is connected to the rear sliding block 320, and the synchronization assembly 330 drives the rear sliding block 320 to move along the slide rails 200. The front sliding block 320 and the rear sliding block 320 are connected by an elastic element 500, and the rear sliding block 320 pushes the front sliding block 310 to move along the slide rails 200 through the elastic element 500.

[0049] Mounting plate 400 is hinged to front sliding block 310 and slidably connected to rear sliding block 320. Elastic element 500 connects front sliding block 310 and rear sliding block 320. The connection point of elastic element 500 and rear movable block 320 is located within the sliding range between mounting plate 400 and rear movable block 320.

[0050] A front sliding block 310 and a rear sliding block 320 are sequentially disposed on a slide rail 200, with the front sliding block 310 positioned near the transmission assembly 100 on the slide rail 200. When the synchronization assembly 330 drives the rear sliding block 320 to move along the slide rail 200, the power is transmitted to the front sliding block 310 through the elastic element 500, causing the front sliding block 310 to move along the guide rail 200. When the front sliding block 310 moves to the top of the slide rail 200, the front sliding block 310 stops moving, and the synchronization assembly 330 continues to drive the rear sliding block 320 to move closer to the front sliding block 310, causing the elastic element 500 connecting the front sliding block 310 and the rear sliding block 320 to deform, causing the mounting plate 400 hinged to the front sliding block 310 to rotate around the hinge point by a predetermined angle to a second angle.

[0051] Three threaded studs 600 are spot-welded to the back of the mounting plate 340 to securely connect the slide rails on the mounting plate 340 to the projector.

[0052] Furthermore, the mounting plate 400 has a sliding groove 410 and a hinge position 420 on its side. The hinge position 420 of the mounting plate 400 is hinged to the front sliding block 310, specifically through a rotating shaft or bearing. The sliding groove 410 of the mounting plate 400 is connected to the rear sliding block 320 through a stud 600. The length of the sliding groove 410 is the sliding range of the connection point between the elastic element 500 and the rear movable block 320, and the connection point is the stud 600.

[0053] The elastic element 500 is a torsion spring. After the spring bushings 510 are installed in the round holes at both ends of the torsion spring, they are connected to the front sliding block 310 and the rear sliding block 320 respectively.

[0054] Specifically, the front sliding block 310 is provided with a pivot block 311, which is connected to the front sliding block 310 via a stud 600. The hinge position 420 of the mounting plate 400 is hinged to the front sliding block 310 via the pivot block 311. The front end of the torsion spring is connected to the front sliding block 310 via a stud 600 after the spring bushing 510 is installed.

[0055] In one embodiment, the slide rail 200 has limiting protrusions 210 at both ends to limit the movement range of the front sliding block 310 and the rear sliding block 320. When the front sliding block 310 and the rear sliding block 320 slide linearly on the slide rail 200, the mounting plate 400 will swing at a certain angle as the distance between the front sliding block 310 and the rear sliding block 320 changes. The specific swinging process is as follows:

[0056] like Figure 5 As shown, when the torsion spring is in a relaxed state and not compressed, the connection point between the torsion spring and the rear moving block 320 is located at the bottom of the slide groove 410. At this time, the mounting plate 400 is at a first angle, and the panel connected to the mounting plate 400 is at an angle of the first angle with the lens of the electronic device. The movement range of the front moving block 310 and the rear moving block 320 is the first range. During this movement, the panel moves from the front of the lens of the electronic device to the side of the lens, which is the panel opening process.

[0057] like Figure 6 As shown, when the current moving block 310 is at the front vertex of the slide rail 200, the rear moving block 320 continues to move closer to the front moving block 310 to compress the torsion spring. During the compression of the torsion spring, the connection point between the torsion spring and the rear moving block 320 moves toward the top of the slide groove 410. The mounting plate 400 rotates from the first angle to the second angle around the hinge point. At this time, the panel connected to the mounting plate 400 is parallel to the plane where the lens is located, and the panel moves from the side of the lens of the electronic device to the front of the lens. The panel blocks the lens, which is the closing process of the panel.

[0058] In one embodiment, a rubber strip 350 is provided between the front sliding block 310 and the slide rail 200, and a rubber strip 350 is provided between the rear sliding block 320 and the slide rail 200. The rubber strip 350 increases the damping between the front sliding block 310 and the slide rail 200, and between the rear sliding block 320 and the slide rail 200. The rubber strip 32 has a boss that engages with the upper and lower side slots of the front sliding block 310 or the rear sliding block 320 for fixation.

[0059] In one embodiment, the synchronization assembly 330 includes a front synchronization pulley 331, a rear synchronization pulley 332, and a synchronization belt 333. The front synchronization pulley 331 and the rear synchronization pulley 332 are respectively located at the front and rear ends of the fixing plate 340. The front synchronization pulley 331 meshes with the first gear 120 in the transmission assembly 100. The synchronization belt 333 surrounds between the front synchronization pulley 331 and the rear synchronization pulley 332, allowing the front synchronization pulley 331 and the rear synchronization pulley 332 to rotate synchronously via the synchronization belt 333. The synchronization belt 333 is provided with teeth 334 that mesh with either the front synchronization pulley 331 or the rear synchronization pulley 332.

[0060] Furthermore, the rear sliding block 320 is provided with a wire-locking block 321 for fixed connection to the timing belt 333, and the wire-locking block 321 is provided with a slot 334 for matching connection with the locking teeth. The synchronous movement of the rear movable block 320 and the timing belt 333 is achieved through the wire-locking block 321.

[0061] This utility model also provides an embodiment of an electronic device, which includes a lens and a panel lifting and opening mechanism as described above. The panel of the electronic device opens and closes via the opening and closing mechanism. Specifically, the electronic device can be an electronic product with a lens, such as a projector or laser projector.

[0062] The specific working process of the projector end cover (panel) lifting and opening mechanism is as follows:

[0063] When the projector end cover needs to be closed, the motor drives the second gear 140 through gear transmission, which in turn drives the transmission shaft 110 to rotate. The first gear 120 on the transmission shaft 110 then drives the front synchronous pulley 331 on the slide rail 200 to rotate. Through the synchronous belt 333, the cable clamping block 321 drives the rear sliding block 320 and pushes the front sliding block 210 to slide linearly on the slide rail 200 to the front end. After the front sliding block 310 reaches its limit position, the rear sliding block 320, driven by the motor, will continue to move closer to the front sliding block 310 against the spring force of the torsion spring until the sliding groove 410 mechanism formed by the mounting plate 400 and the stud 600 achieves the closing action. That is, the stud 600 moves from the bottom to the top of the sliding groove 410, thereby driving the projector end cover and lens to close.

[0064] When the projector end cover needs to be opened, the motor reverses through the above-mentioned movement process, and the front sliding block 310 and the rear sliding block 320 slide in opposite directions until the rear sliding block 320 reaches the other side of the slide rail 200. Under the elastic force of the torsion spring, the front sliding block 310 and the rear sliding block 320 will maintain a certain distance. The stud 600 moves from the top to the bottom of the slide groove 410 of the mounting plate 400, which can open the projector end cover connected to the mounting plate 400.

[0065] In summary, the embodiments provided by this utility model connect the projector panel to a mounting plate, with slide rails installed on both sides of the projector lens. The mounting plate moves up and down via a lifting assembly, enabling the panel to reciprocate between the side and front of the projector. The lifting assembly can be connected to an external motor to achieve automatic lifting and opening / closing of the panel. Furthermore, the opening and closing mechanism remains substantially parallel to the plane of the lens, reducing the space occupied in front of the lens during panel opening and closing, minimizing the contact volume for potential damage from collisions, and allowing for a simpler overall design for the projector.

[0066] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Under the concept of this utility model, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of this utility model as described above. For the sake of brevity, they are not provided in detail. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A panel lifting and opening and closing mechanism characterized by comprising: The transmission assembly is provided with slide rails on both sides, and lifting assemblies are arranged on both sides of the transmission assembly and connected with the transmission assembly, and the lifting assemblies on both sides move synchronously along the slide rails through the transmission assembly; The lifting assembly is connected with a mounting plate, the mounting plate is hingedly connected with the lifting assembly, and the mounting plate is used for connecting a panel, and an elastic member is arranged between the mounting plate and the lifting assembly; When the lifting assembly drives the mounting plate to move in a first interval, the elastic member makes the mounting plate have a first angle, when the lifting assembly drives the mounting plate to move in a second interval, the elastic member is compressed to generate elastic force, and the elastic member makes the mounting plate rotate around a hinged point by a predetermined angle to a second angle.

2. The panel lifting and opening and closing mechanism according to claim 1, characterized by, The transmission assembly comprises a transmission shaft, first gears are arranged at both ends of the transmission shaft, the first gears are engaged with front synchronous wheels in the lifting assemblies, bearing seats are arranged at both ends of the transmission shaft, the bearing seats are used for connecting electronic devices, a second gear is arranged at one end of the transmission shaft, and the second gear is used for transmission connection between the transmission shaft and a power source.

3. The panel lifting and opening and closing mechanism according to claim 1, characterized by, The lifting assembly comprises front sliding blocks, rear sliding blocks, a synchronous assembly and a fixed plate; Upper and lower edges of the fixed plate extend out of the slide rails, the front sliding blocks and the rear sliding blocks are matched and connected with the slide rails respectively, the synchronous assembly is transmission-connected with the transmission assembly, the synchronous assembly is connected with the rear sliding blocks, the synchronous assembly drives the rear sliding blocks to move along the slide rails, and the rear sliding blocks push the front sliding blocks to move along the slide rails through the elastic member; The mounting plate is hingedly connected with the front sliding blocks, the mounting plate is slidingly connected with the rear sliding blocks, the elastic member is connected with the front sliding blocks and the rear sliding blocks respectively, and a connection point of the elastic member and the rear sliding blocks is located in a sliding interval between the mounting plate and the rear sliding blocks.

4. The panel lifting and opening and closing mechanism according to claim 3, characterized by, Side surfaces of the mounting plate are provided with sliding grooves and hinged positions, the hinged positions of the mounting plate are hingedly connected with the front sliding blocks, and the sliding grooves of the mounting plate are matched and connected with the rear sliding blocks through studs; The elastic member is a torsion spring, after two end circular holes of the torsion spring are mounted with spring shaft sleeves respectively, the torsion spring is connected with the front sliding blocks and the rear sliding blocks respectively.

5. The panel lifting and opening and closing mechanism according to claim 4, characterized by The front sliding blocks are provided with shaft blocks, the shaft blocks are connected with the front sliding blocks through studs, the hinged positions of the mounting plate are hingedly connected with the front sliding blocks through the shaft blocks, and one end of the torsion spring is connected with the front sliding blocks through a stud after being mounted with the spring shaft sleeve.

6. The panel lifting and opening and closing mechanism according to claim 4, characterized by Limiting protrusions are arranged at both ends of the slide rails to limit the activity intervals of the front sliding blocks and the rear sliding blocks; When the torsion spring is in a relaxed state, a connection position of the torsion spring and the rear sliding blocks is located at the bottom of the sliding groove, and at this time, the mounting plate has a first angle; When the front sliding blocks are located at the front end vertexes of the slide rails, the rear sliding blocks continue to move to compress the torsion spring, during the compression process of the torsion spring, the connection position of the torsion spring and the rear sliding blocks moves to the top of the sliding groove, and the mounting plate flips around the hinged point by a predetermined angle to a second angle.

7. The panel lifting and opening and closing mechanism according to claim 4, characterized by Gum strips are arranged between the front sliding blocks and the slide rails and between the rear sliding blocks and the slide rails.

8. The panel lifting and opening and closing mechanism according to claim 3, characterized by, The synchronization assembly comprises a front synchronization wheel, a rear synchronization wheel and a synchronization belt; The front and rear ends of the fixed plate are respectively provided with the front synchronization wheel and the rear synchronization wheel, the front synchronization wheel is engaged with the first gear in the transmission assembly, The synchronization belt is around the front synchronization wheel and the rear synchronization wheel, and the front synchronization wheel and the rear synchronization wheel are synchronously rotated through the synchronization belt; The synchronization belt is provided with a clamping tooth engaged with the front synchronization wheel or the rear synchronization wheel.

9. The panel lifting and opening and closing mechanism according to claim 8, characterized by, The rear sliding block is provided with a clamping wire block fixedly connected with the synchronization belt, and the clamping wire block is provided with a clamping groove matched with the clamping tooth.

10. An electronic device, comprising: The electronic device comprises a lens and a panel lifting and opening and closing mechanism as claimed in any one of claims 1-9, and the panel in front of the lens is opened and closed through the panel lifting and opening and closing mechanism.

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