Pulling device and electronic device

Abstract

Embodiments of the present application provide a pulling device and an electronic device, wherein the pulling device comprises a first frame part, a second frame part, a driving assembly and an elastic member, the driving assembly is used to drive the second frame part to make telescopic motion relative to the first frame part, the elastic member is arranged on one of the first frame part and the second frame part, the other of the first frame part and the second frame part is provided with a slope surface, when the pulling device is in an unfolded state, one end of the elastic member is in contact with the slope surface, and when the second frame part starts to displace in a telescopic motion direction of the second frame part, the elastic member is compressed. The pulling device and the electronic device provided by the embodiments of the present application can alleviate or solve the problem that the driving assembly in the pulling device is damaged by impact when the electronic device is hit.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the technical field of electronic devices, and in particular to a pulling device and an electronic device. BACKGROUND

[0002] At present, in order to bring better sensory enjoyment to users, display-type intelligent terminal products such as mobile phones, notebook computers and tablet computers have become an inevitable development trend of large screens. However, the larger the screen is, the larger the size of the intelligent terminal will be, which is inconvenient for carrying. In the face of the above problems, flexible screen display-type intelligent terminal products have emerged as the times require. Flexible screens can be freely bent, which enables display-type intelligent terminal products to break away from the inherent rigid structure and realize more diversified structural forms, such as curved shapes and screen rolling storage, thereby reducing the size of display-type intelligent terminal products, so that flexible screen mobile phones can have both the sensory enjoyment of large screens and the convenience of small screens, which has become an important development direction of intelligent terminal products.

[0003] In related technologies, intelligent terminals using flexible screens mainly have two directions: one direction is that flexible screens are applied to foldable electronic devices, and the size of intelligent terminal products is reduced through the folding of the electronic devices. The other direction is that flexible screens are applied to pulling-type electronic devices, which generally include a first frame part and a second frame part. The second frame part is telescopically connected with the first frame part. A first part of the flexible screen is arranged on the first frame part, and a second part of the flexible screen is connected with the second frame part. The flexible screen can be stretched or rolled up with the telescopic movement of the second frame part, thereby realizing the size reduction of intelligent terminal products.

[0004] However, in the pulling-type electronic device, a motor is usually used to drive the second frame part to realize the telescopic movement of the second frame part relative to the first frame part. When the second frame part is extended relative to the first frame part (the flexible screen is in an unfolded state), if the second frame part is subjected to an impact force that makes it retract into the first frame part (for example, falling, impact, bumping, etc.), the second frame part will generate a large impact on the motor, causing damage to the motor, thereby affecting the service life of the electronic device and the user's experience. SUMMARY

[0005] Embodiments of the present application provide a pulling device and an electronic device, which can alleviate or solve the problem that the driving assembly in the pulling device is damaged by impact when the electronic device is hit.

[0006] To achieve the above object, embodiments of the present application adopt the following technical solutions:

[0007] In a first aspect, the embodiments of the present application provide a pulling device, comprising a first frame part, a second frame part, a driving assembly and an elastic member, the second frame part is arranged in the first frame part in an extendable manner, the driving assembly is configured to drive the second frame part to perform an extension and contraction movement relative to the first frame part, the elastic member is arranged in one of the first frame part and the second frame part, and the other one of the first frame part and the second frame part is provided with a slope surface, when the pulling device is in an unfolded state, one end of the elastic member is in contact with the slope surface, and when the second frame part starts to move in a contraction direction of the second frame part, the elastic member is compressed.

[0008] The pulling device provided by the embodiments of the present application has the following advantages. The elastic member is arranged on one of the first frame part and the second frame part, and the slope surface is arranged on the other one of the first frame part and the second frame part. When the pulling device is in the unfolded state, one end of the elastic member is in contact with the slope surface. When the second frame part starts to move in the contraction direction of the second frame part, the elastic member is compressed. The elastic force of the elastic member acts on the slope surface, so that when the second frame part is displaced by the force that makes it retract into the first frame part (for example, falling, impact, collision, etc.), the force that makes the second frame part move away from the first frame part is generated to buffer the force that makes the second frame part retract into the first frame part, thereby alleviating or solving the problem that the driving assembly is damaged by the impact. Therefore, the service life of the electronic device can be prolonged, and the user experience can be improved. In addition, the pulling device provided by the embodiments of the present application has simple and easy-to-implement structure and strong implementability.

[0009] In a possible implementation, when the pulling device is in the unfolded state, the elastic member is in a compressed state.

[0010] In this way, the unfolding effect of the pulling device can be improved, and thus the flattening effect of the display screen can be improved. In addition, when the second frame part is subjected to the force that makes it retract into the first frame part, the initial force of the second frame part in the first direction D1 can be first offset by the force that makes the second frame part retract into the first frame part, and thus the impact resistance of the pulling device can be further improved, and the problem that the driving assembly is damaged by the impact can be further alleviated or solved.

[0011] In a possible implementation, the first frame part and the second frame part are both in a grid shape, and the grid bars of the first frame part and the grid bars of the second frame part are arranged in an interlaced manner.

[0012] Thus, the slide can be formed between the two grid strips of the first frame part, and the slide can also be formed between the two grid strips of the second frame part. The slide of the first frame part can guide the grid strips of the second frame part, and the slide of the second frame part can also guide the grid strips of the first frame part, which is beneficial to the linearity of the telescopic movement of the second frame part relative to the first frame part.

[0013] In a possible implementation, a through hole is formed in the grid strip of one of the first frame part and the second frame part, the elastic member is arranged in the through hole, the elastic member is tightly fitted with the inner side wall of the through hole, and the two ends of the elastic member are respectively in contact with the adjacent two grid strips of the other of the first frame part and the second frame part.

[0014] Since the elastic member is tightly fitted with the inner side wall of the through hole and the two ends of the elastic member are respectively in contact with the adjacent two grid strips of the first frame part, the elastic member can ensure a certain gap between the grid strips of the second frame part and the grid strips of the first frame part. When the grid strips of the second frame part slide in the slide of the first frame part, the elastic member can guide the second frame part, ensure the linearity of the telescopic movement of the second frame part, and prevent the grid strips of the second frame part from being stuck due to face-to-face friction with the grid strips of the first frame part.

[0015] In a possible implementation, a slope surface is formed in each of the adjacent two grid strips in contact with the two ends of the elastic member.

[0016] Thus, the impact resistance of the pulling device can be further improved, and the problem that the driving assembly is damaged due to impact can be further alleviated or solved.

[0017] In a possible implementation, the end of the elastic member and the slope surface are both curved surfaces. The curved surfaces can reduce the friction between the surfaces and improve the smoothness of the telescopic movement of the second frame part.

[0018] In a possible implementation, the elastic member is a folded plate spring. The integration of the elastic member can improve the structural strength of the elastic member.

[0019] In a possible implementation, the elastic member and the slope surface matched with the elastic member are both multiple.

[0020] Thus, the impact resistance of the pulling device can be further improved.

[0021] In a possible implementation, the driving assembly comprises a mounting base, a driving motor and a transmission assembly, the driving motor is mounted on the mounting base, the mounting base is mounted on one of the first frame part and the second frame part, one end of the transmission assembly is connected to the other one of the first frame part and the second frame part, and the other end of the transmission assembly is connected to at least the driving motor, a step is arranged on the first frame part or the second frame part, the mounting base is arranged at the step, and the side of the mounting base away from the transmission assembly is abutted against the step.

[0022] When the transmission assembly performs the stretching movement, a reaction force is applied to the mounting base, and the step abutted against the mounting base limits the mounting base, thereby improving the mounting stability of the mounting base.

[0023] In a possible implementation, the driving mechanism is a telescopic motor, and the transmission assembly is a scissor transmission member.

[0024] In a second aspect, an embodiment of the present application provides a pulling device, which comprises a first frame part, a second frame part and a driving assembly, the second frame part is arranged telescopically on the first frame part, the driving assembly comprises a driving mechanism and a scissor transmission member, the scissor transmission member comprises a plurality of pairs of transmission arms which are hingedly and crossly arranged at the middle part, two transmission arms in each pair are hingedly connected end to end, the scissor transmission member has a first end and a second end along the telescopic direction of the second frame part, at least one of the two legs on the first end of the scissor transmission member is hingedly connected to the second frame part, one of the two legs on the second end of the scissor transmission member is connected to the driving mechanism, and the other leg is connected to the first frame part or another driving mechanism.

[0025] The pulling device provided by the embodiment of the present application is provided with the scissor transmission member, one end of the scissor transmission member is connected to the second frame part, and the other end of the scissor transmission member is connected to two different driving mechanisms or connected to one driving mechanism and the first frame part respectively, when the second frame part is subjected to a force for retracting into the first frame part (for example, falling, impact, collision, etc.), the scissor transmission member divides the force into two forces which are transmitted to the two different driving mechanisms respectively or transmitted to one driving mechanism and the first frame part respectively, so that the force borne by a single driving mechanism is reduced, thereby relieving or solving the problem that the driving mechanism is damaged due to the impact.

[0026] In a possible implementation, the driving mechanism is a telescopic motor, the telescopic direction of the output shaft of the telescopic motor is perpendicular to the telescopic direction of the second frame part, a connecting piece is arranged on the output shaft of the telescopic motor, and the connecting piece is hingedly connected to the leg of the scissor transmission member.

[0027] When the second frame part is subjected to a force that makes it retract into the first frame part, the force given by the scissor mechanism to the telescopic motor is divided into two components, the first component is along the radial direction of the output shaft of the telescopic motor, and the second component is along the axial direction of the output shaft of the telescopic motor, thus, the function of protecting the driving mechanism is further played, so as to further alleviate or solve the problem that the driving mechanism is damaged due to impact.

[0028] In a possible implementation, the driving assembly further comprises a mounting base, wherein the driving mechanism is arranged on the mounting base, and the mounting base is mounted on the first frame part.

[0029] In a possible implementation, a first sliding rail is arranged on the first frame part or the mounting base, the extending direction of the first sliding rail is perpendicular to the telescopic direction of the second frame part, and the leg of the scissor mechanism that is hinged to the connecting piece is slidingly arranged in the first sliding rail.

[0030] The first sliding rail can provide a guiding function for the leg of the scissor mechanism and limit the leg, so as to ensure the stability of the scissor mechanism during the telescopic process and reduce shaking.

[0031] In a possible implementation, one of the two legs on the second end of the scissor mechanism is connected to the driving mechanism, and the other is hinged to the first frame part or the mounting base.

[0032] In a possible implementation, a second sliding rail is arranged on the second frame part, the extending direction of the second sliding rail is parallel to the telescopic direction of the second frame part, and the hinged connection of the part of the transmission arm in the scissor mechanism is slidingly connected to the second sliding rail.

[0033] In this way, the scissor mechanism and the second frame part are connected at multiple points, so as to enhance the planarity of the telescopic movement of the second frame part.

[0034] In a third aspect, an electronic device is provided, comprising a shell, a flexible screen, a driving device, and a pulling device as described above, the flexible screen is connected to the shell, the shell has a receiving cavity, the driving device and the pulling device are arranged in the receiving cavity, the shell comprises a fixed part and a telescopic part, the telescopic part is arranged in the fixed part in a telescopic manner, the pulling device is used to drive the telescopic part to make telescopic movement relative to the fixed part, and the driving device is used to drive the flexible screen to stretch along with the extension movement of the telescopic part relative to the fixed part, and to fold along with the contraction movement of the telescopic part relative to the fixed part.

[0035] The electronic device provided by the embodiment of the present application is provided with an elastic member on one of the first frame part and the second frame part of the pull-out device, and a slope surface on the other one of the first frame part and the second frame part. When the pull-out device is in the unfolded state, one end of the elastic member is in contact with the slope surface. When the second frame part starts to displace along the contraction movement direction of the second frame part, the elastic member is compressed, and the elastic force of the elastic member acts on the slope surface, so that when the second frame part is displaced by the force that makes it retract into the first frame part, the second frame part is simultaneously subjected to the force that makes it move away from the first frame part provided by the elastic member, and the resistance of the elastic member to the extension direction of the second frame part also makes the second frame part subjected to the force that makes it move away from the first frame part. When the second frame part is displaced by the force that makes it retract into the first frame part (for example, falling, impact, collision, etc.), the force that makes the second frame part move away from the first frame part can buffer the force that makes the second frame part retract into the first frame part, thereby alleviating or solving the problem that the driving assembly is damaged by the impact, thereby prolonging the service life of the electronic device and improving the user experience. In addition, the pull-out device provided by the embodiment of the present application has simple and easy-to-implement structure, and high implementability. Alternatively, the pull-out device is provided with a scissor type transmission member, one end of the scissor type transmission member is connected with the second frame part, and the other end of the scissor type transmission member is connected with two different driving mechanisms or connected with one driving mechanism and the first frame part respectively. When the second frame part is subjected to the force that makes it retract into the first frame part (for example, falling, impact, collision, etc.), the scissor type transmission member divides the force into two forces and transmits the two forces to the two different driving mechanisms or to the one driving mechanism and the first frame part respectively, so as to reduce the force borne by the single driving mechanism, thereby alleviating or solving the problem that the driving mechanism is damaged by the impact.

[0036] In a possible implementation, the shell has a first face and a second face opposite to the first face, a part of the flexible screen is fixedly connected with the first face of the fixed part, another part of the flexible screen is slidably connected with the telescopic part, and the flexible screen on the telescopic part is wound from the first face of the telescopic part to the second face of the telescopic part.

[0037] In a possible implementation, the shell has a first face and a second face opposite to the first face, a part of the flexible screen is fixedly connected with the first face of the telescopic part, another part of the flexible screen is slidably connected with the fixed part, and the flexible screen on the fixed part is wound from the first face of the fixed part to the second face of the fixed part.

[0038] In a possible implementation, the accommodating cavity includes a first cavity and a second cavity, and the pull-out device is arranged in the second cavity, and the extension movement direction of the telescopic part relative to the fixed part is a direction away from the first cavity. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 A structural schematic diagram of an electronic device in a folded state according to an embodiment of the present application is provided.

[0040] Figure 2 A partial structural schematic diagram of an electronic device in a folded state according to an embodiment of the present application is provided.

[0041] Figure 3 A partial structural schematic diagram of an electronic device in an unfolded state according to an embodiment of the present application is provided.

[0042] Figure 4 A schematic diagram of the stretching and contraction of a flexible screen of an electronic device according to an embodiment of the present application is provided.

[0043] Figure 5 A schematic diagram of the stretching and contraction of a flexible screen of an electronic device according to an embodiment of the present application is provided.

[0044] Figure 6 A structural schematic diagram of a pulling device in a related art is provided.

[0045] Figure 7 A structural schematic diagram of a pulling device in a folded state according to an embodiment of the present application is provided.

[0046] Figure 8 A structural schematic diagram of a pulling device in an unfolded state according to an embodiment of the present application is provided.

[0047] Figure 9 An exploded structural schematic diagram of a pulling device according to an embodiment of the present application is provided.

[0048] Figure 10 A principle diagram of the impact resistance of a pulling device according to an embodiment of the present application is provided.

[0049] Figure 11 A principle diagram of the impact resistance of a pulling device according to an embodiment of the present application is provided.

[0050] Figure 12 A perspective schematic diagram of the assembly of a first frame portion, a second frame portion, and an elastic member according to an embodiment of the present application is provided.

[0051] Figure 13 A structural schematic diagram of a middle C portion is provided. Figure 12 A structural schematic diagram of a middle C portion is provided.

[0052] Figure 14 A structural schematic diagram of a middle C portion is provided. Figure 13 A sectional structural schematic diagram of a section line D-D is provided.

[0053] Figure 15A schematic view of the elastic member cooperating with the slope surface provided by an embodiment of the present application;

[0054] Figure 16 A structural schematic view of the elastic member provided by an embodiment of the present application;

[0055] Figure 17 A structural schematic view of the elastic member provided by an embodiment of the present application;

[0056] Figure 18 A structural schematic view of the driving assembly provided by an embodiment of the present application;

[0057] Figure 19 A structural schematic view of the pulling device provided by an embodiment of the present application;

[0058] Figure 20 A structural schematic view of the driving assembly provided by an embodiment of the present application.

[0059] Explanation of reference signs:

[0060] 10-pulling device; 11-first frame part; 12-second frame part; 13-driving motor; 14-screw rod;

[0061] 100-electronic device;

[0062] 110-housing; 111-fixed part; 112-telescopic part; 120-flexible screen; 130-accommodation cavity; 131-first cavity; 132-second cavity;

[0063] 200-pulling device;

[0064] 210-first frame part; 220-second frame part;

[0065] 230-driving assembly; 231-mounting seat; 2311-first slide rail; 232-driving mechanism; 2321-connecting piece; 233-transmission assembly; 234-scissor transmission piece; 2341-transmission arm; 2342-leg;

[0066] 240-elastic member; 250-slope surface; 260-grid strip; 261-through hole; 270-slide; 280-step;

[0067] 290-second slide rail. DETAILED DESCRIPTION

[0068] The terms used in the embodiments of the present application are only used for explaining the specific embodiments of the present application, and are not intended to limit the present application, and the embodiments of the present application will be described in detail below in conjunction with the drawings.

[0069] Embodiments of the present application provide an electronic device, which can be a mobile phone, a mobile phone accessory, a pad, a pad accessory, a television, a smart wearable product (for example, a smart watch, a smart bracelet, etc.), a virtual reality (VR) device, an augmented reality (AR) device, a notebook computer, a notebook computer accessory, an ultra-mobile personal computer (UMPC), a netbook, a personal digital assistant (PDA), and the like terminal product, or can be a digital camera, a micro-single camera, a sports camera, a gimbal camera, a drone, and the like professional shooting device. Embodiments of the present application do not limit the specific type of the electronic device, as long as the electronic device has the pull-out device provided in the embodiments of the present application shown below. For the convenience of understanding, the electronic device is taken as a pull-out flexible screen mobile phone in the embodiments of the present application for illustration.

[0070] Figure 1 A structural schematic diagram of an electronic device 100 provided in an embodiment of the present application in a folded state is shown in FIG. 1. As shown in FIG. 1, the electronic device 100 provided in the embodiment of the present application includes a housing 110 and a flexible screen 120 connected with the housing 110. Figure 1

[0071] The housing 110 is a structural frame member of the electronic device 100, and is used to mount and fix the components required for constituting the electronic device 100, and has a diversified structure. For example, Figure 2 A partial structural schematic diagram of an electronic device provided in an embodiment of the present application in a folded state is shown in FIG. 2. As shown in FIG. 2, the electronic device 100 provided in the embodiment of the present application includes a housing 110 and a flexible screen 120 connected with the housing 110. Figure 2 ​As shown, in some embodiments of the present application, the electronic device 100 may further include multiple components (not shown in the figure), the housing 110 has a receiving cavity 130, and the multiple components can be installed in the receiving cavity 130 of the housing 110. The multiple components may include, for example, a mainboard, a processor, an internal memory, an external memory interface, a universal serial bus (USB) interface, a charging management module, a power management module, a battery, an antenna, a communication module, a camera, an audio module, a speaker, a receiver, a microphone, a headphone jack, a sensor module, a button, a motor, an indicator, and a subscriber identification module (SIM) card interface. Among them, the electronic device 100 may have more or fewer components than described above, may combine two or more components, or may have different component configurations. Each component may be implemented in hardware, software, or a combination of hardware and software, including one or more signal processing and / or application-specific integrated circuits. The embodiments of the present application do not strictly limit the specific structure of the housing 110.

[0072] The flexible screen 120 includes a display module, which can display images and videos, etc. The display module can adopt a liquid crystal display (LCD), an organic light-emitting diode (OLED), an active matrix organic light-emitting diode or an active matrix organic light-emitting diode (AMOLED), a flexible light-emitting diode (FLED), a quantum dot light-emitting diode (QLED), etc. In addition, in some embodiments of the present application, the flexible screen 120 may also include a transparent cover plate, which is arranged on the outside of the display module to protect the display module. The transparent cover plate can be made of a transparent material such as polyimide that can play a protective function. The flexible screen 120 can also have a touch function, that is, the flexible screen 120 can be a touch screen.

[0073] Figure 2 A partial structural diagram of an electronic device 100 in a folded state provided in an embodiment of the present application ( Figure 2 The display screen and redundant components are omitted), refer to Figure 2 As shown, the electronic device 100 further includes: a driving device (not shown in the figure) and a pulling device 200 . The housing 110 has a receiving cavity 130 , and the driving device and the pulling device 200 are disposed in the receiving cavity 130 .Figure 3 A partial structural diagram of an electronic device 100 in an unfolded state provided in an embodiment of the present application ( Figure 3 The display screen and redundant components are omitted), refer to Figure 3 Combined with Figure 2 As shown, the housing 110 includes a fixed portion 111 and a telescopic portion 112. The telescopic portion 112 is telescopically arranged on the fixed portion 111. It can be understood that the telescopic portion 112 can perform telescopic movement relative to the fixed portion 111. For example, a slide rail can be provided on the fixed portion 111, and the telescopic portion 112 can be arranged in the slide rail. The telescopic portion 112 can be telescopically arranged relative to the fixed portion 111 by sliding the telescopic portion 112 in the slide rail. The embodiment of the present application does not limit the telescopic connection method of the telescopic portion 112 and the fixed portion 111. It is sufficient that the telescopic portion 112 can perform telescopic movement relative to the fixed portion 111.

[0074] like Figure 2 As shown in , the electronic device 100 can be folded into a folded state, such as Figure 3 The electronic device 100 shown in FIG can also be extended to the expanded state. Of course, the electronic device 100 can also be folded or extended to an intermediate state, and the intermediate state can be any state between the folded state and the expanded state.

[0075] In the electronic device 100 provided in the embodiment of the present application, the pulling device 200 is used to drive the telescopic portion 112 to perform telescopic movement relative to the fixed portion 111. In the electronic device 100 provided in the embodiment of the present application, the driving device is used to drive the flexible screen 120 to extend as the telescopic portion 112 extends relative to the fixed portion 111, and to retract as the telescopic portion 112 contracts relative to the fixed portion 111. It can be understood that when the pulling device 200 drives the telescopic portion 112 to extend relative to the fixed portion 111, the driving device synchronously drives the flexible screen 120 to extend, and when the pulling device 200 drives the telescopic portion 112 to contract relative to the fixed portion 111, the driving device synchronously drives the flexible screen 120 to contract.

[0076] The embodiments of the present application do not limit the specific structure of the driving device, as long as the driving device can drive the flexible screen 120 to expand and contract. For example, in some embodiments of the present application, the driving device can be a pulley assembly.

[0077] There are many ways to connect the flexible screen 120 and the housing 110. For example, Figure 4 Schematic diagram of the change of the flexible screen 120 of the electronic device 100 provided in an embodiment of the present application, refer to Figure 4As shown, in some embodiments of the present application, the shell 110 has a first surface and a second surface opposite to the first surface, here, the front surface of the shell 110 (i.e. the front surface of the electronic device 100) is defined as the first surface of the shell 110, and the back surface of the shell 110 (i.e. the back surface of the electronic device 100) is defined as the second surface of the shell 110. A part of the flexible screen 120 is fixedly connected to the front surface of the fixed part 111, which can be understood as that this part of the flexible screen 120 is fixed and cannot move relative to the fixed part 111. Another part of the flexible screen 120 is slidably connected to the telescopic part 112, which can be understood as that this part of the flexible screen 120 is movable relative to the telescopic part 112. And the flexible screen 120 located on the telescopic part 112 is wrapped from the front surface of the telescopic part 112 to the back surface of the telescopic part 112.

[0078] Reference Figure 4 As shown, in this connection mode of the flexible screen 120 and the shell 110, the A end of the flexible screen 120 is fixed, when the telescopic part 112 makes an extension movement relative to the fixed part 111, the a end located on the back surface of the telescopic part 112 will move to the extension direction of the telescopic part 112, until the electronic device 100 is in the unfolded state, so that the area of the flexible screen 120 located on the front surface of the shell 110 becomes larger and larger, that is, the flexible screen 120 is unfolded. When the telescopic part 112 makes a contraction movement relative to the fixed part 111, the a end located on the back surface of the telescopic part 112 will move to the contraction direction of the telescopic part 112, until the electronic device 100 is in the folded state, so that the area of the flexible screen 120 located on the front surface of the shell 110 becomes smaller and smaller, that is, the flexible screen 120 is folded.

[0079] Exemplary, Figure 5 The variation diagram of the flexible screen 120 unfolding and folding of the electronic device 100 provided by an embodiment of the present application is shown in FIG. 2, which is described as follows. Figure 5 As shown, in some embodiments of the present application, the shell 110 has a first surface and a second surface opposite to the first surface, here, the front surface of the shell 110 (i.e. the front surface of the electronic device 100) is defined as the first surface of the shell 110, and the back surface of the shell 110 (i.e. the back surface of the electronic device 100) is defined as the second surface of the shell 110. A part of the flexible screen 120 is fixedly connected to the front surface of the fixed part 111, which can be understood as that this part of the flexible screen 120 is fixed and cannot move relative to the fixed part 111. Another part of the flexible screen 120 is slidably connected to the telescopic part 112, which can be understood as that this part of the flexible screen 120 is movable relative to the telescopic part 112. And the flexible screen 120 located on the telescopic part 112 is wrapped from the front surface of the telescopic part 112 to the back surface of the telescopic part 112.

[0080] Reference Figure 5As shown, in the connection mode of the flexible screen 120 and the shell 110, the B end of the flexible screen 120 is fixed, when the telescopic part 112 makes an extension movement relative to the fixed part 111, the B end of the flexible screen 120 moves together with the telescopic part 112, at this time, the b end located at the back of the fixed part 111 moves in the direction opposite to the extension direction of the telescopic part 112, until the electronic device 100 is in the extension state, so that the area of the flexible screen 120 located at the front of the shell 110 becomes larger and larger, that is, the flexible screen 120 is extended. When the telescopic part 112 makes a contraction movement relative to the fixed part 111, the B end of the flexible screen 120 moves together with the telescopic part 112, at this time, the b end located at the back of the fixed part 111 moves in the direction opposite to the contraction direction of the telescopic part 112, until the electronic device 100 is in the folding state, so that the area of the flexible screen 120 located at the front of the shell 110 becomes smaller and smaller, that is, the flexible screen 120 is folded.

[0081] The embodiments of the present application do not limit the connection mode of the flexible screen 120 and the shell 110, as long as the driving device can drive the flexible screen 120 to extend with the extension movement of the telescopic part 112 relative to the fixed part 111, and can drive the flexible screen 120 to fold with the contraction movement of the telescopic part 112 relative to the fixed part 111.

[0082] With reference to the foregoing Figure 2 As shown, in some embodiments of the present application, the accommodating cavity 130 can include a first cavity 131 and a second cavity 132, the pulling device 200 is assembled in the second cavity 132, and the direction of the extension movement of the telescopic part 112 relative to the fixed part 111 is the direction away from the first cavity 131. It can be understood that the components necessary for the electronic device 100 can be accommodated in the first cavity 131, and separating these components from the pulling device 200 is beneficial to the rationalization of the component layout in the electronic device 100. Moreover, since the direction of the extension movement of the telescopic part 112 relative to the fixed part 111 is the direction away from the first cavity 131, adding the first cavity 131 can increase the initial display area of the flexible screen 120 in the folding state, which is beneficial to improving the user experience.

[0083] It should be noted that the embodiments of the present application do not limit the number of cavities contained in the electronic device 100, which can be one, two or three, or even more.

[0084] With reference to the foregoing Figure 2 And Figure 3 As shown, in the pulling electronic device 100, in order to improve automation, the power of the telescopic movement of the telescopic part 112 relative to the fixed part 111 is generally provided by the pulling device 200, the pulling device 200 drives the telescopic part 112 to contract, and the pulling device 200 drives the telescopic part 112 to extend.

[0085] Figure 6 Fig. 1 is a structural schematic diagram of a pulling device 10 in the prior art, referring to Fig. 1, in the prior art, the pulling device 10 comprises a first frame part 11, a second frame part 12, a driving motor 13 and a lead screw 14, the second frame part 12 is arranged in an extendable and retractable manner with the first frame part 11, the driving motor 13 is arranged on the first frame part 11, a screw rod of the lead screw 14 is connected with an output rotating shaft of the driving motor 13, and a screw nut of the lead screw 14 is connected with the second frame part 12. The output rotating shaft of the driving motor 13 rotates to drive the screw rod of the lead screw 14 to rotate, and the screw nut of the lead screw 14 drives the second frame part 12 to perform an extension and retraction movement relative to the first frame part 11. Figure 6

[0086] However, in the pulling device 10 in the prior art, when the second frame part 12 extends relative to the first frame part 11, if it is affected by a force F (the force F can be a single force perpendicular to the frame of the second frame part 12, or a component force inclined to the frame of the second frame part 12), such as falling, impact, collision, etc., the second frame part 12 will be affected by an explosive force to make it retract into the first frame part 11, and the second frame part 12 will generate a large impact on the driving motor 13, which will cause the driving motor 13 to be damaged, thereby affecting the service life of the electronic device 100 and the user's use experience (such as the opening and closing experience of the flexible screen 120, etc.). Figure 6

[0087] ​​To solve the above problems, the embodiment of the present application provides a pulling device. The pulling device is provided with an elastic element on one of the first frame part and the second frame part and a slope surface on the other one of the first frame part and the second frame part. When the pulling device is in the unfolded state, one end of the elastic element is in contact with the slope surface. When the second frame part starts to displace along the second frame part contraction movement direction, the elastic element is compressed, and the elastic force of the elastic element acts on the slope surface, so that when the second frame part is displaced by the force of making it retract into the first frame part, the second frame part is simultaneously subjected to the force of making it away from the first frame part. When the second frame part is displaced by the force of making it retract into the first frame part (for example, falling, impact, collision, etc.), the force of making it away from the first frame part can buffer the force of making it retract into the first frame part, thereby alleviating or solving the problem that the driving assembly is damaged by the impact, thereby prolonging the service life of the electronic device and improving the user experience. In addition, the pulling device provided by the embodiment of the present application has simple structure and is easy to implement. Alternatively, the pulling device is provided with a scissor type transmission element. One end of the scissor type transmission element is connected with the second frame part, and the other end of the scissor type transmission element is connected with two different driving mechanisms or connected with one driving mechanism and the first frame part respectively. When the second frame part is subjected to the force of making it retract into the first frame part (for example, falling, impact, collision, etc.), the scissor type transmission element can divide the force into two forces and transmit the two forces to two different driving mechanisms or one driving mechanism and the first frame part respectively, so as to reduce the force borne by a single driving mechanism, thereby alleviating or solving the problem that the driving mechanism is damaged by the impact.

[0088] The pulling device provided by the embodiment of the present application will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0089] The pulling device provided by the embodiment of the present application can not only be arranged in the electronic device 100 with the flexible screen 120 as a component, but also be arranged in the electronic device without the flexible screen 120, and of course can be arranged in other devices or apparatuses not limited to the electronic device. In addition, the pulling device can also be used as a separate part, such as a sliding door commonly seen in life.

[0090] Since the stretching and folding of the electronic device 100 is realized by the pulling device, it is easy to understand that the pulling device also has an unfolded state and a folded state like the electronic device 100. Figure 7 As shown in Figure 7 FIG. 1 is a structural schematic diagram of the pulling device 200 in the folded state according to an embodiment of the present application. The pulling device 200 can be folded into the folded state. As shown in Figure 8 As shown in Figure 8Fig. 1 shows a structure schematic diagram of a puller 200 in an unfolded state according to an embodiment of the present application. The puller 200 can be extended to the unfolded state. Of course, the puller 200 can also be folded or extended to an intermediate state, which can be any state between the folded state and the unfolded state.

[0091] Embodiment one

[0092] Figure 9 Fig. 2 shows an exploded structure schematic diagram of the puller 200 according to an embodiment of the present application. As shown in Fig. 2, the puller 200 according to an embodiment of the present application comprises a first frame part 210, a second frame part 220, a driving assembly 230 and an elastic member 240. Figure 9 In combination with Figure 3 the first frame part 210 and the second frame part 220, the puller 200 according to an embodiment of the present application comprises a first frame part 210, a second frame part 220, a driving assembly 230 and an elastic member 240.

[0093] Specifically, the second frame part 220 is arranged in a telescopic manner in the first frame part 210. It can be understood that the second frame part 220 can make telescopic movement relative to the first frame part 210. The present application does not strictly limit the specific forms of the first frame part 210 and the second frame part 220, as long as the second frame part 220 can make telescopic movement relative to the first frame part 210. For example, one of the first frame part 210 and the second frame part 220 is a frame-shaped part with one open side, and the other is a plate-shaped part. For another example, the first frame part 210 and the second frame part 220 can cooperate to form a telescopic structure like a drawer. For example, as shown in Fig. 1, the first frame part 210 and the second frame part 220 are both in the form of a grid. Figure 9 For example, as shown in Fig. 1, the first frame part 210 and the second frame part 220 are both in the form of a grid. The grid bars on the first frame part 210 and the grid bars on the second frame part 220 are arranged alternately.

[0094] The first frame part 210 can be connected to the fixed part 111 of the electronic device 100, and the second frame part 220 can be connected to the telescopic part 112 of the electronic device 100. When the second frame part 220 makes telescopic movement relative to the first frame part 210, the second frame part 220 can drive the telescopic part 112 to make telescopic movement relative to the fixed part 111.

[0095] The driving assembly 230 is used to drive the second frame part 220 to make telescopic movement relative to the first frame part 210 on a straight line. It can be understood that, as shown in Fig. 1, the driving assembly 230 is arranged on the first frame part 210. Figure 9As shown, the telescopic movement direction of the second frame portion 220 relative to the first frame portion 210 is on a straight line, the extension movement direction of the second frame portion 220 relative to the first frame portion 210 is a first direction D1, the contraction movement direction of the second frame portion 220 relative to the first frame portion 210 is a second direction D2, the first direction D1 and the second direction D2 are opposite, and the driving assembly 230 provides power for the extension movement of the second frame portion 220 in the first direction D1 and the contraction movement of the second frame portion 220 in the second direction D2.

[0096] It should be noted that the present application embodiment does not limit the setting position of the driving assembly 230, as long as the driving assembly 230 can drive the second frame portion 220 to make telescopic movement relative to the first frame portion 210. For example, the driving assembly 230 can not be arranged on the pull-out device 200, but can be arranged on the shell 110 of the electronic equipment 100. For another example, as shown in FIG. 2B, the driving assembly 230 can be arranged on the first frame portion 210 and the second frame portion 220. Figure 8 It should be noted that the present application embodiment does not limit the specific structure of the driving assembly 230, as long as the driving assembly 230 can drive the second frame portion 220 to make telescopic movement relative to the first frame portion 210. For example, the driving assembly 230 can be the structure composed of the driving motor and the lead screw mentioned in the related art above. For another example, the driving assembly 230 can be the structure composed of the driving motor, the belt and the belt pulley. Exemplarily, the present application takes the structure composed of the driving motor and the connecting rod type transmission assembly 233 as an example for display (which will be described in detail below). The present application embodiment also does not limit the number of the driving assembly 230, which can be one, two or more, for example, as shown in FIG. 2B, there are two driving assemblies 230 arranged at the top and the bottom of the pull-out device 200, respectively, which can be beneficial to the consistency of the telescopic movement of the second frame portion 220. Figure 8 It should be noted that the present application embodiment does not limit the specific structure of the driving assembly 230, as long as the driving assembly 230 can drive the second frame portion 220 to make telescopic movement relative to the first frame portion 210. For example, the driving assembly 230 can be the structure composed of the driving motor and the lead screw mentioned in the related art above. For another example, the driving assembly 230 can be the structure composed of the driving motor, the belt and the belt pulley. Exemplarily, the present application takes the structure composed of the driving motor and the connecting rod type transmission assembly 233 as an example for display (which will be described in detail below). The present application embodiment also does not limit the number of the driving assembly 230, which can be one, two or more, for example, as shown in FIG. 2B, there are two driving assemblies 230 arranged at the top and the bottom of the pull-out device 200, respectively, which can be beneficial to the consistency of the telescopic movement of the second frame portion 220.

[0097] The elastic member 240 is arranged on one of the first frame portion 210 and the second frame portion 220, and a slope surface is arranged on the other one of the first frame portion 210 and the second frame portion 220. It can be understood that when the elastic member 240 is arranged on the first frame portion 210, the slope surface is arranged on the second frame portion 220, and when the elastic member 240 is arranged on the second frame portion 220, the slope surface is arranged on the first frame portion 210. The elastic member 240 is used in cooperation with the slope surface. Exemplarily, the present application takes the example that the elastic member 240 is arranged on the second frame portion 220 and the slope surface is arranged on the first frame portion 210 as shown in the accompanying drawings.

[0098] The sloped surface can be provided on a side surface of the first frame portion 210 or the second frame portion 220, and the side surface is a non-end surface of the first frame portion 210 or the second frame portion 220 along the direction of telescopic movement of the second frame portion 220. It can be understood that both the first frame portion 210 and the second frame portion 220 have end surfaces along the first direction D1 and the second direction D2, and the sloped surface is provided on a side surface of the first frame portion 210 or the second frame portion 220, which is not an end surface of the first frame portion 210 or the second frame portion 220 along the first direction D1 and the second direction D2. Furthermore, the side surface can be parallel to the first direction D1 or can be inclined to the first direction D1. In the embodiment of the present application, the side surface being parallel to the first direction D1 is used as an example for description.

[0099] Figure 10 This is a schematic diagram of the principle of the impact resistance of the pulling device 200 provided in one embodiment of the present application, refer to Figure 10 Combined with Figure 9 As shown, Figure 10 In the embodiment, the elastic member 240 is provided on the first frame portion 210, and the slope 250 is provided on the second frame portion 220. When the pulling device 200 is in the unfolded state, one end of the elastic member 240 contacts the inclined surface of the slope 250. It can be understood that one end of the elastic member 240 is located on the half slope of the slope 250. When the second frame portion 220 moves along the direction of the second frame portion 220 contraction movement (i.e. Figure 10 When the second frame portion 220 begins to move in the second direction D2), the elastic member 240 will be compressed by the slope of the slope 250, and the elastic force of the compressed elastic member 240 will react on the slope of the slope 250, so that the second frame portion 220 is subjected to the extension movement direction of the second frame portion 220 (i.e. Figure 10 In addition, the resistance of the elastic member 240 to the second frame portion 220 along the first direction D1 will also cause the second frame portion 220 to be subjected to a force in the direction of the second frame portion 220's extension movement. When the second frame portion 220 is subjected to a force that causes it to retract into the first frame portion 210 and is displaced (for example, by falling, impacting, bumping, etc.), the force on the second frame portion 220 that causes it to move away from the first frame portion 210 (i.e., the force on the second frame portion 220 in the direction of the second frame portion 220's extension movement) will buffer the force on the second frame portion 220 that causes it to retract into the first frame portion 210, thereby alleviating or resolving the problem of the drive assembly 230 being damaged by the impact, thereby extending the service life of the electronic device 100 and improving the user experience.

[0100] Figure 11 This is a schematic diagram of the principle of the impact resistance of the pulling device 200 provided in one embodiment of the present application, refer to Figure 11 Combined with Figure 9 As shown, Figure 11In the embodiment, the elastic member 240 is arranged on the second frame portion 220, and the slope surface 250 is arranged on the first frame portion 210. It can be easily understood that, Figure 11 In the embodiment, the principle of the impact resistance of the pulling device 200 is consistent with Figure 10 In the embodiment, the principle of the impact resistance of the pulling device 200 is consistent with

[0101] It should be noted that the formation of the slope surface 250 in the embodiment of the application can be a groove formed on the first frame portion 210 or the second frame portion 220, or a protruding member arranged on the first frame portion 210 or the second frame portion 220. As long as the elastic member 240 is compressed when the second frame portion 220 is displaced along the contraction direction of the second frame portion 220, the embodiment of the application takes the slope surface 250 formed by the groove on the first frame portion 210 or the second frame portion 220 as an example for illustration.

[0102] It should be understood that, Figure 10 and Figure 11 In the embodiment, only the principle diagram of the impact resistance of the pulling device 200 is shown, Figure 10 and Figure 11 In the embodiment, the actual proportions, sizes and shapes of the parts are not drawn, and other drawings can also be the same, so the application should not be limited to the proportions, sizes and shapes shown in the drawings.

[0103] The number of the elastic member 240 and the number of the slope surface 250 cooperating with the elastic member 240 in the embodiment of the application are not limited, and can be set according to the specific use scene requirements of the pulling device 200. For example, the number of the elastic member 240 can be one, two, three or more, and the number of the slope surface 250 cooperating with the elastic member 240 can be one, two, three or more. In addition, in the embodiment of the application, the corresponding relationship between the slope surface 250 and the elastic member 240 is not limited to one-to-one, but can also be many-to-one.

[0104] It should be noted that the arrangement of the elastic member 240 and the slope surface 250 in the pulling device 200 provided in the embodiment of the application will not affect the normal operation of the pulling device 200. When the pulling device 200 is in the contracted state, the elastic member 240 is compressed between the first frame portion 210 and the second frame portion 220 (not falling into the slope surface 250), and when the pulling device 200 is expanded, the elastic member 240 moves in the gap between the first frame portion 210 and the second frame portion 220 until it falls on the inclined surface of the slope surface 250 when the pulling device 200 is in the expanded state. When the pulling device 200 is contracted, the elastic member 240 slides out of the slope surface 250 along the inclined surface, and the first frame portion 210 and the second frame portion 220 are not locked until the pulling device 200 is in the contracted state.

[0105] It can be understood that the pulling device 200 provided in the embodiments of the present application is provided with the elastic member 240 on one of the first frame part 210 and the second frame part 220 and the slope surface 250 on the other one of the first frame part 210 and the second frame part 220. When the pulling device 200 is in the unfolded state, one end of the elastic member 240 is in contact with the slope surface 250. When the second frame part 220 starts to displace along the contraction movement direction of the second frame part 220, the elastic member 240 is compressed, and the elastic force of the elastic member 240 acts on the slope surface 250, so that the second frame part 220 is simultaneously subjected to the force of the elastic member 240 away from the first frame part 210 when the second frame part 220 is displaced by the force of being retracted into the first frame part 210, and the resistance of the elastic member 240 to the second frame part 220 along the extension direction of the second frame part 220 also causes the second frame part 220 to be subjected to the force of being away from the first frame part 210. When the second frame part 220 is displaced by the force of being retracted into the first frame part 210 (for example, falling, impact, collision, etc.), the force of the second frame part 220 away from the first frame part 210 can buffer the force of the second frame part 220 being retracted into the first frame part 210, thereby alleviating or solving the problem that the driving assembly 230 is damaged by the impact, thereby prolonging the service life of the electronic device 100 and improving the user experience. In addition, the pulling device 200 provided in the embodiments of the present application has simple structure and strong implementability.

[0106] It should be noted that when the pulling device 200 is in the unfolded state and one end of the elastic member 240 is in contact with the slope surface 250, the state of the elastic member 240 is regarded as the initial state, and the initial state of the elastic member 240 can be the relaxed state. In some embodiments of the present application, the initial state of the elastic member 240 can also be set as the compressed state, which can be referred to in the description of the elastic member 240. Figure 11 When the initial state of the elastic member 240 is the compressed state, it means that when the pulling device 200 is in the unfolded state, the elastic force of the compressed elastic member 240 acts on the slope surface 250, so that the second frame part 220 has an initial force in the first direction D1, so that the unfolding effect of the pulling device 200 can be improved, thereby improving the flattening effect of the display screen. In addition, when the second frame part 220 is subjected to the force of being retracted into the first frame part 210, the initial force of the second frame part 220 in the first direction D1 can first be offset by the force of the second frame part 220 being retracted into the first frame part 210, so that the impact resistance of the pulling device 200 can be further improved, and the problem that the driving assembly 230 is damaged by the impact can be further alleviated or solved.

[0107] Continuing to refer to Figure 8As shown, in some embodiments of the present application, the first frame portion 210 and the second frame portion 220 are both in the form of a grid, and the grid bars 260 of the first frame portion 210 are arranged in an interlaced manner with the grid bars 260 of the second frame portion 220. It can be easily understood that, in this way, the two grid bars 260 of the first frame portion 210 can form a slide 270 therebetween, and the two grid bars 260 of the second frame portion 220 can also form a slide 270 therebetween, the slide 270 of the first frame portion 210 can guide the grid bars 260 of the second frame portion 220, and the slide 270 of the second frame portion 220 can also guide the grid bars 260 of the first frame portion 210, which is beneficial to the linearity of the telescopic movement of the second frame portion 220 relative to the first frame portion 210.

[0108] Figure 12 A perspective view of the assembly of the first frame portion 210, the second frame portion 220 and the elastic member 240 provided in an embodiment of the present application is shown in FIG. 2B, in which the pull-out device 200 is in the expanded state. Figure 12 Figure 13 A perspective view of the assembly of the first frame portion 210, the second frame portion 220 and the elastic member 240 provided in an embodiment of the present application is shown in FIG. 2B, in which the pull-out device 200 is in the expanded state. Figure 12 A perspective view of the assembly of the first frame portion 210, the second frame portion 220 and the elastic member 240 provided in an embodiment of the present application is shown in FIG. 2B, in which the pull-out device 200 is in the expanded state. Figure 13 When the elastic member 240 is not provided, although there is a certain gap between the grid bars 260 of the first frame portion 210 and the grid bars 260 of the second frame portion 220 when the grid bars 260 of the second frame portion 220 slide in the slide 270 of the first frame portion 210, the surface-to-surface sliding friction between the grid bars 260 of the second frame portion 220 and the grid bars 260 of the first frame portion 210 is inevitable, which can cause the second frame portion 220 to be stuck during the telescopic movement, especially when the second frame portion 220 is inclined (the second frame portion 220 is not parallel to the first frame portion 210), the second frame portion 220 is more likely to be stuck.

[0109] To solve the above problem, please refer to Figure 13 ​In some embodiments of the present application, a through hole 261 can be formed on the grid strip 260 of one of the first frame part and the second frame part 220, and the elastic member 240 is fastened to the inner side wall of the through hole 261, and the two ends of the elastic member 240 are in contact with the adjacent two grid strips 260 of the other one of the first frame part 210 and the second frame part 220. In the drawings of the present application, the two ends of the elastic member 240 are in contact with the adjacent two grid strips 260 of the first frame part 210 as an example. It can be understood that, since the elastic member 240 is fastened to the inner side wall of the through hole 261, and the two ends of the elastic member 240 are in contact with the adjacent two grid strips 260 of the first frame part 210, the elastic member 240 can ensure a certain gap between the grid strips 260 of the second frame part 220 and the grid strips 260 of the first frame part 210. When the grid strips 260 of the second frame part 220 slide in the slide 270 of the first frame part 210, the elastic member 240 can provide a guiding effect for the second frame part 220, ensure the straightness of the extension and contraction movement of the second frame part 220, and prevent the grid strips 260 of the second frame part 220 from being stuck due to face-to-face friction with the grid strips 260 of the first frame part 210.

[0110] When the elastic member 240 is multiple, the multiple elastic members 240 can be arranged on the same grid strip 260 or different grid strips 260, which can be arranged according to the actual use condition of the pulling device 200.

[0111] Figure 14 For Figure 13 The cross-sectional structure schematic view of the cross-sectional cut line D-D is shown in FIG. 8. Figure 13 and Figure 14 In some embodiments of the present application, the adjacent two grid strips 260 in contact with the two ends of the elastic member 240 can be provided with the slope surface 250, so as to further enhance the impact resistance of the pulling device 200, and further alleviate or solve the problem that the driving assembly 230 is damaged due to impact.

[0112] Figure 15 The schematic view of the cooperation between the elastic member 240 and the slope surface 250 provided in an embodiment of the present application is shown in FIG. 9. Figure 15 In the drawing of the present application, the pulling device 200 is in the unfolded state, and the end of the elastic member 240 is in contact with the slope surface 250. Figure 15 and in combination with Figure 14 In some embodiments of the present application, the end of the elastic member 240 and the inclined surface of the slope surface 250 can be provided as a curved surface. It can be understood that the curved surface can reduce the friction between the surfaces and improve the smoothness of the extension and contraction movement of the second frame part 220.

[0113] Figure 16 This is a schematic diagram of the structure of the elastic member 240 provided in one embodiment of the present application, refer to Figure 16 As shown, in some embodiments of the present application, the elastic member 240 can be a coil spring with arc-shaped spring caps at both ends. Of course, the embodiment of the present application does not impose strict restrictions on the type of the elastic member 240.

[0114] When the installation space of the elastic member 240 is too small and the elastic member 240 needs to be a small member, it is necessary to clamp the arc-shaped spring caps at both ends of the coil spring and screw them into a spiral shape, which is prone to breakage and inconvenient to manufacture. Figure 17 This is a schematic diagram of the structure of the elastic member 240 provided in one embodiment of the present application, refer to Figure 17 As shown, in some embodiments of the present application, the elastic member 240 can be a folding leaf spring manufactured using complaisance spring technology (CST). Compared to coil springs, this is less prone to breakage during the manufacturing process, making it easier to manufacture. Furthermore, because the folding leaf spring can be twisted by clamping the curved spring caps at both ends, it facilitates the integrated design of the curved spring caps and the spring, thereby improving the structural strength of the elastic member 240.

[0115] Figure 18 This is a schematic diagram of the structure of the drive assembly 230 provided in an embodiment of the present application, refer to Figure 18 Combined with Figure 8 As shown, in some implementations of the present application, the driving assembly 230 may include: a mounting seat 231 , a driving mechanism 232 and a transmission assembly 233 .

[0116] Specifically, such as Figure 18 As shown in FIG, the driving mechanism 232 is mounted on the mounting base 231, which can be mounted on the first frame portion 210. One end of the transmission assembly 233 is connected to at least the driving mechanism 232, and the other end of the transmission assembly 233 is connected to the second frame portion 220. When the driving mechanism 232 is in operation, the transmission assembly 233 drives the second frame portion 220 to perform telescopic movement.

[0117] Of course, the mounting base 231 can also be mounted on the second frame portion 220. One end of the transmission assembly 233 is connected to at least the drive mechanism 232, and the other end of the transmission assembly 233 is connected to the first frame portion 210. When the drive mechanism 232 is in operation, the transmission assembly 233 generates a thrust on the first frame portion 210. Since the first frame portion 210 is fixed, the reaction force exerted by the first frame portion 210 on the transmission assembly 233 drives the second frame portion 220 to perform a telescopic movement.

[0118] A step 280 is provided on the first frame portion 210 or the second frame portion 220 (seeFigure 8 As shown, the present embodiment uses the step 280 provided on the first frame portion 210 as an example for illustration. Mounting seat 231 is positioned on step 280, and the side of mounting seat 231 facing away from the extension direction of transmission assembly 233 abuts against step 280. Because the extension of transmission assembly 233 exerts a reaction force on mounting seat 231, the abutment of step 280 against mounting seat 231 serves to limit the position of mounting seat 231, thereby improving the installation stability of mounting seat 231.

[0119] Please continue to refer to Figure 8 and Figure 18 As shown, the drive mechanism 232 can utilize a telescopic motor, and the transmission assembly 233 can utilize a scissor-type transmission. The two legs at one end of the scissor-type transmission are connected to the telescopic mechanism and the mounting base 231, respectively. The telescopic mechanism's extension and contraction direction is perpendicular to that of the transmission assembly 233. In this manner, the scissor-type transmission can split the force exerted on the second frame portion 220 along its contraction direction into two forces, which are transmitted separately to the drive mechanism 232 and the mounting base 231, further alleviating the risk of damage to the drive mechanism 232 due to impact.

[0120] Example 2

[0121] Figure 19 This is a schematic diagram of the structure of the pulling device 200 provided in one embodiment of the present application, refer to Figure 19 As shown, the pulling and pulling device 200 provided in the embodiment of the present application includes a first frame portion 210 and a second frame portion 220 telescopically arranged on the first frame portion 210, wherein the technical features of the first frame portion 210 and the second frame portion 220, the technical effects that can be achieved by the technical features, and the technical problems that can be solved by the technical effects are the same as those of the pulling and pulling device 200 provided in Example 1, and will not be described one by one here.

[0122] Figure 20 This is a schematic diagram of the structure of the drive assembly 230 provided in an embodiment of the present application, refer to Figure 20 Combined with Figure 19 As shown, the pulling device 200 provided in the embodiment of the present application further includes a drive assembly 230 .

[0123] Specifically, the driving assembly 230 comprises a driving mechanism 232 and a scissor transmission 234, the scissor transmission 234 comprises a plurality of pairs of transmission arms 2341 which are hingedly and crossly arranged, and the transmission arms 2341 in each pair are hingedly connected in a head-to-tail manner to form the scissor transmission 234. The scissor transmission 234 has a first end and a second end along the telescopic direction of the second frame part 220, and here, the end of the scissor transmission 234 away from the driving mechanism 232 is defined as the first end, and the end close to the driving mechanism 232 is defined as the second end. At least one of the two legs 2342 at the first end of the scissor transmission 234 is hingedly connected with the second frame part 220, and can drive the second frame part 220 to move when the scissor transmission 234 telescopes. Of course, both of the two legs 2342 at the first end of the scissor transmission 234 can be hingedly connected with the second frame part 220, so as to improve the consistency of the action of the scissor transmission 234 driving the second frame part 220 to move.

[0124] One of the two legs 2342 at the second end of the scissor transmission 234 is connected with one driving mechanism 232, and the other leg 2342 is connected with the first frame part 210 or the other leg 2342 is connected with the other driving mechanism 232. The embodiment of the present application is described by taking an example that one of the two legs 2342 at the second end of the scissor transmission 234 is connected with the driving mechanism 232, and the other leg 2342 is connected with the first frame part 210. Here, the "connection" is a broad connection, which can be direct connection or indirect connection through an intermediate medium. For example, "the other leg 2342 is connected with the first frame part 210" means that the other leg 2342 can be directly connected with the first frame part 210 or connected with the first frame part 210 through other components.

[0125] It can be understood that the pull-out device 200 provided by the embodiment of the present application can reduce the force borne by a single driving mechanism 232 by arranging the scissor transmission 234, one end of the scissor transmission 234 being connected with the second frame part 220, and the two legs 2342 at the other end of the scissor transmission 234 being respectively connected with two different driving mechanisms 232 or respectively connected with one driving mechanism 232 and the first frame part 210, so that when the second frame part 220 is subjected to a force (for example, falling, impact, bumping, etc.) to retract into the first frame part 210, the scissor transmission 234 can divide the force into two forces and transmit the two forces to the two different driving mechanisms 232 or respectively transmit the two forces to one driving mechanism 232 and the first frame part 210, thereby reducing the force borne by a single driving mechanism 232, and relieving or solving the problem that the driving mechanism 232 is damaged due to impact.

[0126] The number and arrangement position of the driving assembly 230 are not limited in the embodiment of the present application, and exemplary, Figure 19In some embodiments, the driving assembly 230 is two, which are arranged at the top and bottom of the drawer 200 perpendicular to the extension direction of the drawer 200.

[0127] With reference to Figure 20 In some embodiments, the driving mechanism 232 can be a telescopic motor, the extension direction of the output shaft of the telescopic motor is perpendicular to the extension direction of the first frame 210, and a connecting piece 2321 is arranged on the output shaft of the telescopic motor, which is hinged with the leg 2342 of the scissor transmission 234, so as to realize the purpose of driving the scissor transmission 234 by the telescopic motor.

[0128] When the second frame 220 is subjected to a force to retract the first frame 210, the force given by the scissor transmission 234 to the telescopic motor will be divided into two components, the first component is along the radial direction of the output shaft of the telescopic motor, and the second component is along the axial direction of the output shaft of the telescopic motor, so as to further play a role in protecting the driving mechanism 232, thereby further alleviating or solving the problem of the driving mechanism 232 being damaged by impact.

[0129] With reference to Figure 20 and in combination Figure 19 In some embodiments, the driving assembly 230 can further include a mounting seat 231, the driving mechanism 232 is arranged on the mounting seat 231, and the mounting seat 231 is mounted on the first frame 210.

[0130] In addition, a first sliding rail 2311 can be formed on the mounting seat 231, the extension direction of the first sliding rail 2311 is perpendicular to the extension direction of the second frame 220, and the leg 2342 of the scissor transmission 234 hinged with the connecting piece 2321 is slidingly arranged in the first sliding rail 2311. It is easy to understand that the first sliding rail 2311 can provide a guiding effect for the leg 2342 of the scissor transmission 234 and be limited, so as to ensure the stability of the scissor transmission 234 during the extension process and reduce the shaking.

[0131] In addition, the mounting seat 231 can also provide a hinged position for the leg 2342 on the second end of the scissor transmission 234, for example Figure 20 As shown in the middle, one of the two legs 2342 on the second end of the scissor transmission 234 is connected with the driving mechanism 232, and the other leg 2342 is hinged with the mounting seat 231. Of course, the leg 2342 hinged with the mounting seat 231 can also be replaced with the first frame 210.

[0132] With reference to Figure 19 and Figure 20As shown, in some embodiments of the present application, the second frame portion 220 may further include a second slide rail 290, the extension direction of which is parallel to the extension and retraction direction of the second frame portion 220. The hinged connection of some transmission arms 2341 in the scissor-type transmission member 234 is slidably connected to the second slide rail 290. In this way, the scissor-type transmission member 234 and the second frame portion 220 are connected at multiple points, which can enhance the planarity of the second frame portion 220 during its extension and retraction movement.

[0133] It is easy to understand that the driving assembly 230 in the drawing device 200 provided in the second embodiment of the present application can also be applied to the drawing device 200 provided in the first embodiment of the present application (eg, Figure 8 In addition, all technical features of the driving assembly 230 in the drawing device 200 provided in the second embodiment of the present application can be combined with the drawing device 200 provided in the first embodiment of the present application.

[0134] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate an example, illustration, or description. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be interpreted as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0135] In the description of the embodiments of the present application, the term "at least one" refers to one or more, and "plurality" refers to two or more. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b, and c can represent a, b, c, a and b, a and c, b and c, and a, b, and c, where a, b, and c can be single or multiple.

[0136] In the description of embodiments of the application, "parallel", "perpendicular", "equal", "coplanar" include the stated case and a case similar to the stated case within an acceptable deviation range, where the acceptable deviation range is determined by a person of ordinary skill in the art taking into account the measurement being discussed and the error associated with the measurement of the particular quantity (i.e., limitations of the measurement system). For example, "parallel" includes absolute parallel and near-parallel, where the acceptable deviation range for near-parallel can be, for example, within ±10° or ±5°. "Perpendicular" includes absolute perpendicular and near-perpendicular, where the acceptable deviation range for near-perpendicular can be, for example, within ±10° or ±5°; "equal" includes absolute equality and near-equality, where the acceptable deviation range for near-equality can be, for example, a difference between the two that is less than or equal to 5% of either. For example, an included angle between two components of 180° includes the case of absolute 180° and near-180°, where the acceptable deviation range for near-180° can be, for example, within ±10° or ±5°; for example, an included angle between two components of 0° includes the case of absolute 0° and near-0°, where the acceptable deviation range for near-0° can be, for example, within ±10° or ±5°. For example, an included angle between two components of 90° includes the case of absolute 90° and near-90°, where the acceptable deviation range for near-90° can be, for example, within ±10° or ±5°.

[0137] In embodiments of the application, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0138] The positional terms mentioned in embodiments of the application, such as "inner", "outer", etc., are only the directions of reference to the drawings, therefore, the positional terms used are for better, clearer illustration and understanding of embodiments of the application, and do not indicate or imply that the devices or elements referred to must have a particular position, and a particular position configuration and operation, and therefore cannot be understood as a limitation on embodiments of the application. In addition, unless otherwise stated in the application, "a plurality of" in the application means two or more.

[0139] In the embodiments of the present application, "and / or" is only used to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are in an "or" relationship.

[0140] In the description of the embodiments of the present application, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, it can be fixed connection, or indirect connection through intermediate medium, or the communication inside two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0141] The terms "first", "second", "third", "fourth" and the like (if any) in the claims and the specification and drawings of the embodiments of the present application are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence.

[0142] In the description of the present application, the specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0143] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, but not to limit them; although the embodiments of the present application have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A pulling device, characterized in that The utility model relates to a telescopic frame, comprising: a first frame part; a second frame part telescopically arranged on the first frame part; a drive assembly for driving the second frame part to telescopically move relative to the first frame part; a resilient member arranged on one of the first frame part and the second frame part, and the other of the first frame part and the second frame part is provided with a slope; when the pull-out device is in the unfolded state, one end of the resilient member is in contact with the slope, and when the second frame part starts to displace in the telescopic movement direction of the second frame part, the resilient member is compressed; when the pull-out device is in the unfolded state, the resilient member is in a compressed state.

2. The drawer apparatus according to claim 1, wherein The first frame part and the second frame part are both in a grid shape, and the grid bars of the first frame part and the second frame part are arranged alternately.

3. The drawer apparatus according to claim 2, wherein A through hole is formed on the grid bar of one of the first frame part and the second frame part, the resilient member is arranged in the through hole, the resilient member is tightly fitted with the inner side wall of the through hole, and the two ends of the resilient member are respectively in contact with the adjacent two grid bars of the other of the first frame part and the second frame part.

4. The drawer apparatus according to claim 3, wherein Slopes are formed on the adjacent two grid bars in contact with the two ends of the resilient member.

5. The puller device according to any one of claims 1-4, characterized in that The end of the resilient member and the slope are both curved surfaces.

6. The drawer arrangement according to any one of claims 1-4, characterized in that The resilient member is a folded plate spring.

7. The puller device according to any one of claims 1-4, characterized in that The resilient member and the slope matched with the resilient member are both multiple.

8. The drawer arrangement according to any one of claims 1-4, characterized in that The drive assembly comprises a mounting seat, a drive mechanism, and a transmission assembly; the drive mechanism is mounted on the mounting seat, the mounting seat is mounted on one of the first frame part and the second frame part, one end of the transmission assembly is connected with the other of the first frame part and the second frame part, and the other end of the transmission assembly is connected with at least the drive mechanism; a step is arranged on the first frame part or the second frame part, the mounting seat is arranged at the step, and the side of the mounting seat away from the extension direction of the transmission assembly is in abutment with the step.

9. The drawer apparatus of claim 8, wherein, The drive mechanism is a telescopic motor, and the transmission assembly is a scissor-type transmission member.

10. A pulling device, characterized in that The utility model relates to a telescopic frame, comprising: a first frame part; a second frame part telescopically arranged on the first frame part; a drive assembly comprising a drive mechanism and a scissor-type transmission member, the scissor-type transmission member comprising a plurality of pairs of transmission arms telescopically arranged and hingedly connected, the transmission arms are hingedly connected in pairs, the scissor-type transmission member has a first end and a second end along the telescopic direction of the second frame part, and at least one of the two feet on the first end of the scissor-type transmission member is hingedly connected with the second frame part; one of the two feet on the second end of the scissor-type transmission member is connected with one of the drive mechanisms, and the other is connected with the first frame part or the other of the drive mechanisms; the drive mechanism is a telescopic motor, and the telescopic direction of the output shaft of the telescopic motor is perpendicular to the telescopic direction of the second frame part; a connecting piece is arranged on the output shaft of the telescopic motor, and the connecting piece is hingedly connected with the foot of the scissor-type transmission member.

11. The drawer apparatus of claim 10, wherein, The driving assembly further includes a mounting seat, the driving mechanism is arranged on the mounting seat, and the mounting seat is mounted on the first frame portion.

12. The drawer apparatus of claim 11, wherein, A first slide rail is provided on the first frame portion or the mounting seat, and an extension direction of the first slide rail is perpendicular to a telescopic direction of the second frame portion; The legs of the scissor-type transmission member hinged to the connecting member are slidably arranged in the first slide rail.

13. The puller of claim 11, wherein, One of the two legs on the second end of the scissor-type transmission member is connected to the driving mechanism, and the other is hinged to the first frame part or the mounting seat.

14. The puller device of any one of claims 10-13, wherein, A second slide rail is provided on the second frame portion, and an extension direction of the second slide rail is parallel to a telescopic direction of the second frame portion. A hinged connection of a portion of the transmission arm in the scissor-type transmission member is slidably connected to the second slide rail.

15. An electronic device, comprising: include: A housing, a flexible screen, a driving device, and a pulling device according to any one of claims 1 to 14; The flexible screen is connected to the housing, the housing has a receiving cavity, and the driving device and the pulling device are arranged in the receiving cavity; The housing comprises: a fixed portion and a telescopic portion, wherein the telescopic portion is telescopically arranged on the fixed portion; The pulling device is used to drive the telescopic part to perform telescopic movement relative to the fixed part; The driving device is used to drive the flexible screen to extend as the telescopic part moves relative to the fixed part, and to retract as the telescopic part moves relative to the fixed part.

16. The electronic device of claim 15, wherein, The housing has a first surface and a second surface opposite to the first surface; A portion of the flexible screen is fixedly connected to the first surface of the fixing portion; Another part of the flexible screen is slidably connected to the telescopic part, and the flexible screen located on the telescopic part is wound around to the second surface of the telescopic part via the first surface of the telescopic part.

17. The electronic device of claim 16, wherein, The housing has a first surface and a second surface opposite to the first surface; A portion of the flexible screen is fixedly connected to the first surface of the telescopic portion; Another part of the flexible screen is slidably connected to the fixed portion, and the flexible screen located on the fixed portion is wound around to the second surface of the fixed portion via the first surface of the fixed portion.

18. The electronic device of any of claims 15-17, wherein, The accommodating cavity includes: a first cavity and a second cavity; The pulling device is assembled in the second cavity, and the direction in which the telescopic part performs an extension movement relative to the fixed part is a direction away from the first cavity.

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