Back shell with telescopic foot pad and display equipment

Abstract

The utility model relates to the technical field of display equipment, and provides a back shell with a telescopic foot pad and display equipment, which comprise a back shell main body, a rotating piece, a spring, a foot pad main body, a mounting cover, a limiting piece and a pressing piece, in the state of retracting the foot pad, a pressing protrusion on the pressing piece is pushed outwards and then loosened, and the state of popping up the foot pad is switched; in the state of popping up the foot pad, a pressing protrusion on the pressing piece is pushed outwards and then loosened, the state is switched into the state of retracting the foot pad, and the telescopic adjustment convenience of a user on the foot pad is improved; in the state of popping up the foot pad, the rotary protrusion is clamped on the first face and the second face, movement of the foot pad head towards the inner side is limited, the spring exerts elastic force on the protrusion in the rod, the elastic force is transmitted to the foot pad head, movement of the foot pad head towards the outer side is limited, the foot pad head in the state of popping up the foot pad is kept stable, and supporting stability is improved. The back shell with the telescopic foot pad is applied to the display equipment, and the display equipment is supported through the telescopic foot pad, so that the user experience is improved.

Description

Technical Field

[0001] This utility model relates to the field of display device technology, and in particular to a back shell with telescopic feet and a display device. Background Technology

[0002] The back cover refers to the back cover used in display devices. Usually, a screen and corresponding accessories are added to the back cover to assemble a display device.

[0003] Feet are supporting components on the back cover, typically providing cushioning and stability. For example, when the back cover is placed on a table, the cushioning feet contact the table surface. Multiple feet can be installed on a single back cover, depending on the intended use.

[0004] Existing back cover feet are usually non-extendable, which cannot meet the various support needs of the back cover. Utility Model Content

[0005] The main objective of this application is to provide a back cover and display device with telescopic feet, in order to solve the problems in the prior art where the back cover cannot be supported by telescopic feet and the inconvenience for users to adjust the telescopic feet on the back cover.

[0006] The first aspect of this utility model provides a back cover with telescopic foot pads, comprising multiple components, characterized in that the multiple components include a back cover body, a rotating component, a spring, a foot pad body, a mounting cover, a limiting component, and a pressing component;

[0007] The back shell body has a back shell edge and a mounting part. Foot pad holes are opened on the back shell edge. The mounting part includes a first limiting part, a second limiting part, a perforated baffle, a bottom hole and a bottom groove. The perforated baffle has a baffle hole.

[0008] The rotating component has a rotating column, a rotating groove, and multiple rotating protrusions;

[0009] The foot pad body has a connecting rod and a foot pad head. The middle part of the connecting rod is provided with a rod protrusion, and the top end of the connecting rod is rotatably connected to the rotating groove.

[0010] The connecting rod passes through the baffle hole, and the protrusion in the rod and the foot pad head are respectively located on both sides of the perforated baffle;

[0011] The spring is sleeved on the connecting rod and is located between the protrusion in the rod and the perforated baffle.

[0012] The limiting member is a tubular shape with multiple protrusions, and a telescopic notch is provided on the side of the limiting member that does not have protrusions.

[0013] The mounting cover is fixed to the back shell body, and a fixing groove is provided in the middle of the side of the mounting cover near the back shell body.

[0014] The limiting member is fixed in the fixing groove, so that the telescopic notch is opposite to the bottom groove;

[0015] The pressing component includes a pressing protrusion, a conductive part, a connecting part, and a sleeve. The pressing protrusion is disposed at one end of the conductive part, and the connecting part is disposed at the other end of the conductive part. The connecting part is adjacent to the conductive part and the sleeve.

[0016] The pressing protrusion passes through the bottom hole, a part of the connecting portion is in the telescopic notch, another part of the connecting portion is in the bottom groove, and the sleeve is fitted inside the limiting member so that the sleeve can slide inside the limiting member. The bottom hole is set as a strip hole, and when the pressing protrusion slides in the bottom hole, the sleeve slides in the limiting member.

[0017] The back shell with telescopic foot pads has at least a retracted foot pad state and a pop-out foot pad state, wherein, in the retracted foot pad state, the foot pad head is located between the first limiting part and the second limiting part; in the pop-out foot pad state, the foot pad head extends out from the foot pad hole;

[0018] The positional relationship of the multiple components is set such that:

[0019] In the retracted foot pad state, at least one of the rotating protrusions is between two protrusions. When the protrusion is pressed and pushed outward by an external force, the sleeve slides outward within the limiting member. The sleeve pushes at least one of the rotating protrusions outward. When the rotating protrusion slides out of the gap formed between the two protrusions, the rotating member rotates. At this time, if the external force stops, the rotating protrusion slides inward under the action of the spring force and continues to rotate, eventually stopping on one of the protrusions. At this time, the surfaces of the rotating protrusion and the protrusions in contact are the first surface and the second surface. This is the pop-out foot pad state. The outer side is the side of the bottom hole near the edge of the back shell. The protrusion has a third surface adjacent to the second surface, and the third surface is not adjacent to the first surface.

[0020] In the pop-up foot pad state, when the pressing protrusion slides outward under external force, it pushes at least one of the rotating protrusions to slide outward, and the rotating component rotates; after the pressing protrusion no longer contacts the first surface and the second surface, if the external force stops, the rotating protrusion slides inward under the action of spring force and continues to rotate until the rotating protrusion extends into the notch formed by the two protrusions. The rotating protrusion is restricted from rotating by the notch, and the rotating protrusion continues to slide inward in the notch under the action of spring force until the foot pad is retracted.

[0021] Optionally, the size of the baffle hole is set such that the portion of the connecting rod without the central protrusion can pass through, while the portion with the central protrusion cannot pass through, and the spring cannot pass through.

[0022] Optionally, the retracted footpad state includes:

[0023] When a rotating protrusion of the rotating component engages with a notch of the limiting component, and the foot pad head contacts the perforated baffle, the back shell with the telescopic foot pad is in the retracted foot pad state.

[0024] Optionally, the retracted footpad state further includes:

[0025] A rotating protrusion of the rotating member engages with a notch of the limiting member, and the connecting part is on the bottom side of the bottom groove; wherein, the bottom side is the side of the bottom groove away from the edge of the back shell.

[0026] Optionally, the sleeve has serrated protrusions.

[0027] Optionally, the top of the rotating protrusion has a rotating ramp.

[0028] Optionally, when the serrated protrusion contacts the rotating inclined surface, the rotating member rotates relative to the connecting rod.

[0029] Optionally, the contact between the serrated protrusion and the rotating inclined surface includes line-to-surface contact and surface-to-surface contact.

[0030] Optionally, the rotating member rotates relative to the connecting rod in a direction about the central axis of the connecting rod, from the first surface to the third surface.

[0031] The second aspect of this utility model provides a display device having a screen and a back cover with retractable feet as described in the first aspect of this utility model.

[0032] In the first aspect of this utility model, a back cover with telescopic feet is provided. A pressing protrusion in the bottom hole allows the user to easily adjust the telescopic movement of the feet. Specifically, the user pushes the pressing protrusion outward a certain distance and then releases it to adjust the telescopic movement of the feet, ensuring at least the transition between the pop-up and retracted feet states, thus improving the user experience. Applying the back cover with telescopic feet to display devices can meet various user needs for supporting the display device (e.g., the need for extended feet for support, the need for retracted feet for support). Simultaneously, in the pop-up feet state, the rotating protrusion engages with the first and second surfaces, restricting the inward movement of the feet head. A spring applies elastic force to the protrusion in the rod, which is transmitted to the feet head, restricting its outward movement. This ensures the stability of the feet head in the pop-up feet state, improving support stability and enhancing the user experience.

[0033] In the second aspect of the present invention, by providing a display device, a back shell with telescopic feet is applied to the display device, which can meet the user's various needs for supporting the display device (e.g., the need to extend the feet for support, the need to retract the feet for support), and improve the user experience. Attached Figure Description

[0034] Figure 1 This is an exploded view of the back shell with telescopic foot pads in an embodiment of the present invention (wherein, only a part of the main body of the back shell is shown in the figure);

[0035] Figure 2 This is an exploded view of the back shell with telescopic foot pads in an embodiment of this utility model;

[0036] Figure 3 This is a schematic diagram of a portion of the back shell body in an embodiment of this utility model;

[0037] Figure 4 This is a schematic diagram of the rotating component in an embodiment of the present invention;

[0038] Figure 5 This is another structural schematic diagram of the rotating component in an embodiment of this utility model;

[0039] Figure 6 This is another structural schematic diagram of the rotating component in an embodiment of this utility model;

[0040] Figure 7 This is a schematic diagram of the structure of the foot pad body in an embodiment of this utility model;

[0041] Figure 8 This is a schematic diagram of the structure of the mounting cover in an embodiment of the present invention;

[0042] Figure 9This is a schematic diagram of the limiting member in an embodiment of the present utility model;

[0043] Figure 10 This is another structural schematic diagram of the limiting member in an embodiment of this utility model;

[0044] Figure 11 This is another structural schematic diagram of the limiting member in an embodiment of this utility model;

[0045] Figure 12 These are the first and second views of the limiting member in an embodiment of this utility model;

[0046] Figure 13 The images shown are the third, fourth, fifth, and sixth views of the limiting member in an embodiment of this utility model.

[0047] Figure 14 This is a schematic diagram of the pressing component in an embodiment of the present invention;

[0048] Figure 15 This is another structural schematic diagram of the pressing component in an embodiment of this utility model;

[0049] Figure 16 This is a structural schematic diagram of one implementation of the back shell with telescopic foot pads in an embodiment of the present invention;

[0050] Figure 17 This is a schematic diagram of the first principle of the back shell with telescopic foot pads in an embodiment of this utility model;

[0051] Figure 18 This is a second schematic diagram of the back shell with telescopic foot pads in an embodiment of this utility model;

[0052] Figure 19 This is a third schematic diagram of the principle of the back shell with telescopic foot pads in an embodiment of this utility model;

[0053] Figure 20 This is a fourth schematic diagram of the principle of the back shell with telescopic foot pads in an embodiment of this utility model;

[0054] Figure 21 This is the fifth schematic diagram of the principle of the back shell with telescopic foot pads in the embodiment of this utility model;

[0055] Figure 22 This is the sixth schematic diagram of the back shell with telescopic foot pads in an embodiment of this utility model;

[0056] Figure 23 This is the seventh schematic diagram of the principle of the back shell with telescopic foot pads in the embodiments of this utility model;

[0057] Figure 24This is the eighth schematic diagram of the back shell with telescopic foot pads in an embodiment of this utility model;

[0058] Figure 25 This is the ninth schematic diagram of the principle of the back shell with telescopic foot pads in the embodiments of this utility model;

[0059] Figure 26 This is a structural schematic diagram of one implementation of the display device or the back shell with telescopic feet in an embodiment of this utility model. Detailed Implementation

[0060] The technical solutions of the present utility model will now be described with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0061] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in a sequence other than that illustrated or described herein. Furthermore, the terms "comprising" or "having" and any variations thereof are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0062] Reference Figures 1-26 An embodiment of the first aspect of this utility model provides a back cover with telescopic foot pads, comprising multiple components, including a back cover body, a rotating component, a spring, a foot pad body, a mounting cover, a limiting component, and a pressing component;

[0063] The back shell body has a back shell edge and a mounting part. Foot pad holes are opened on the back shell edge. The mounting part includes a first limiting part, a second limiting part, a perforated baffle, a bottom hole and a bottom groove. The perforated baffle has a baffle hole.

[0064] The rotating component has a rotating column, a rotating groove, and multiple rotating protrusions;

[0065] The foot pad body has a connecting rod and a foot pad head. The middle part of the connecting rod is provided with a rod protrusion, and the top end of the connecting rod is rotatably connected to the rotating groove.

[0066] The connecting rod passes through the baffle hole, and the protrusion in the rod and the foot pad head are respectively located on both sides of the perforated baffle;

[0067] The spring is sleeved on the connecting rod and is located between the protrusion in the rod and the perforated baffle.

[0068] The limiting member is a tubular shape with multiple protrusions, and a telescopic notch is provided on the side of the limiting member that does not have protrusions.

[0069] The mounting cover is fixed to the back shell body, and a fixing groove is provided in the middle of the side of the mounting cover near the back shell body.

[0070] The limiting member is fixed in the fixing groove, so that the telescopic notch is opposite to the bottom groove;

[0071] The pressing component includes a pressing protrusion, a conductive part, a connecting part, and a sleeve. The pressing protrusion is disposed at one end of the conductive part, and the connecting part is disposed at the other end of the conductive part. The connecting part is adjacent to the conductive part and the sleeve.

[0072] The pressing protrusion passes through the bottom hole, a part of the connecting portion is in the telescopic notch, another part of the connecting portion is in the bottom groove, and the sleeve is fitted inside the limiting member so that the sleeve can slide inside the limiting member. The bottom hole is set as a strip hole, and when the pressing protrusion slides in the bottom hole, the sleeve slides in the limiting member.

[0073] The back shell with telescopic foot pads has at least a retracted foot pad state and a pop-out foot pad state, wherein, in the retracted foot pad state, the foot pad head is located between the first limiting part and the second limiting part; in the pop-out foot pad state, the foot pad head extends out from the foot pad hole;

[0074] The positional relationship of the multiple components is set such that:

[0075] In the retracted foot pad state, at least one of the rotating protrusions is between two protrusions. When the protrusion is pressed and pushed outward by an external force, the sleeve slides outward within the limiting member. The sleeve pushes at least one of the rotating protrusions outward. When the rotating protrusion slides out of the gap formed between the two protrusions, the rotating member rotates. At this time, if the external force stops, the rotating protrusion slides inward under the action of the spring force and continues to rotate, eventually stopping on one of the protrusions. At this time, the surfaces of the rotating protrusion and the protrusions in contact are the first surface and the second surface. This is the pop-out foot pad state. The outer side is the side of the bottom hole near the edge of the back shell. The protrusion has a third surface adjacent to the second surface, and the third surface is not adjacent to the first surface.

[0076] In the pop-up foot pad state, when the pressing protrusion slides outward under external force, it pushes at least one of the rotating protrusions to slide outward, and the rotating component rotates; after the pressing protrusion no longer contacts the first surface and the second surface, if the external force stops, the rotating protrusion slides inward under the action of the spring force and continues to rotate until the rotating protrusion extends into the notch formed by the two protrusions. The rotating protrusion is restricted from rotating by the notch, and the rotating protrusion continues to slide inward in the notch under the action of the spring force until the foot pad is retracted.

[0077] Optionally, the size of the baffle hole is set such that the portion of the connecting rod without the central protrusion can pass through, while the portion with the central protrusion cannot pass through, and the spring cannot pass through.

[0078] Optionally, the retracted footpad state includes:

[0079] When a rotating protrusion of the rotating component engages with a notch of the limiting component, and the foot pad head contacts the perforated baffle, the back shell with the telescopic foot pad is in the retracted foot pad state.

[0080] Optionally, the retracted footpad state further includes:

[0081] A rotating protrusion of the rotating member engages with a notch of the limiting member, and the connecting part is on the bottom side of the bottom groove; wherein, the bottom side is the side of the bottom groove away from the edge of the back shell.

[0082] Optionally, the sleeve has serrated protrusions.

[0083] Optionally, the top of the rotating protrusion has a rotating ramp.

[0084] Optionally, when the serrated protrusion contacts the rotating inclined surface, the rotating member rotates relative to the connecting rod.

[0085] Optionally, the contact between the serrated protrusion and the rotating inclined surface includes line-to-surface contact and surface-to-surface contact.

[0086] Optionally, the rotating member rotates relative to the connecting rod in a direction about the central axis of the connecting rod, from the first surface to the third surface.

[0087] Reference Figures 1-26 In another embodiment, the back shell with telescopic foot pads has a back shell body 1, a rotating component 2, a spring 3, a foot pad body 4, a mounting cover 5, a limiting component 6, and a pressing component 7.

[0088] The back shell body 1 has a back shell edge 101 and a mounting part 10; the mounting part 10 includes a first limiting part 11, a second limiting part 12, a perforated baffle 13, a bottom hole 14, and a bottom groove 16; foot pad holes 15 are formed on the back shell edge 101; the perforated baffle 13 has baffle holes 131;

[0089] When the foot pad is retracted, the foot pad head 42 is located between the first limiting part 11 and the second limiting part 12;

[0090] The rotating member 2 has a rotating column 21 and a rotating groove 22; the rotating member 2 has a plurality of rotating protrusions (e.g., four rotating protrusions), the plurality of rotating protrusions including rotating protrusion 23, rotating protrusion 24 and rotating protrusion 25, the rotating protrusions having rotating inclined surfaces, rotating protrusion 23 having rotating inclined surface 231, and rotating protrusion 25 having rotating inclined surface 251;

[0091] The foot pad body 4 has a connecting rod 41 and a foot pad head 42. The connecting rod 41 has a rod center protrusion 411 in the middle. The spring 3 is sleeved on the connecting rod 41 and is located between the rod center protrusion 411 and the foot pad head 42.

[0092] The connecting rod 41 passes through the baffle hole 131, and the protrusion 411 in the rod and the foot pad head 42 are located on both sides of the perforated baffle 13 respectively. The spring 3 is limited between the protrusion 411 in the rod and the perforated baffle 13. The size of the baffle hole 131 is set so that the part of the connecting rod 41 without the protrusion 411 in the rod can pass through, while the protrusion 411 in the rod cannot pass through, and the spring 3 cannot pass through.

[0093] The top end of the connecting rod 41 is rotatably connected to the rotating groove 22, so that the rotating part 2 can rotate relative to the connecting rod 41; when the rotating part 2 rotates to different positions relative to the connecting rod 41, a rotating protrusion of the rotating part 2 can be engaged in a notch of the limiting part 6, or it can be engaged between the first and second surfaces of a protrusion of the limiting part; when a rotating protrusion of the rotating part 2 is engaged in a notch of the limiting part 6, and the foot pad head 42 contacts the perforated baffle 13, the back shell with the telescopic foot pad is in the retracted foot pad state;

[0094] When a rotating protrusion of the rotating component 2 is engaged between the first and second surfaces of a protrusion of the limiting component, the back shell with telescopic feet is in the pop-out foot pad state.

[0095] The mounting cover 5 is fixed to the back shell body 1. The mounting cover 5 has a fixing groove 51 and a limiting member 6 is fixed in the fixing groove 51. The fixing groove 51 is opposite to the bottom groove 16 to form a space. The limiting member 6 is located in the space and the telescopic notch 60 is opposite to the bottom groove 16. A part of the connecting part 73 is located in the bottom groove 16 and another part of the connecting part 73 is located in the telescopic notch 60, so that a part of the connecting part 73 can slide in the bottom groove 16 and a part of the connecting part 73 can slide in the telescopic notch 60.

[0096] The limiting member 6 is configured as a tube with multiple protrusions (e.g., four protrusions, each with its top end symmetrically arranged), wherein a notch is formed between any two protrusions;

[0097] The limiting member 6 has a telescopic notch 60 on the side without the protrusion, wherein the telescopic notch 60 extends to the middle of the protrusion 61.

[0098] The limiting member 6 has a protrusion 61, a protrusion 62, a protrusion 63 and a protrusion 64;

[0099] A notch 6a is formed between protrusions 61 and 62, and a notch 6b is formed between protrusions 62 and 63;

[0100] Each protrusion has multiple faces at its top; protrusion 61 has a first face 611, a second face 612, and a third face 613; protrusion 62 has a first face 621, a second face 622, and a third face 623; protrusion 63 has a first face 631, a second face 632, and a third face 633; ​​protrusion 64 has a first face 641, a second face 642, and a third face 643.

[0101] The pressing member 7 includes a pressing protrusion 71, a conductive part 72, a connecting part 73, and a sleeve 74; the pressing protrusion 71 is disposed at one end of the conductive part 72, the connecting part 73 is disposed at the other end of the conductive part 72, and the connecting part 73 is adjacent to the conductive part 72 and the sleeve 74.

[0102] The pressing protrusion 71 passes through the bottom hole 14, the connecting part 73 is located within the telescopic notch 60, and the sleeve 74 is fitted within the limiting member 6, so that the sleeve 74 can slide within the limiting member 6 (specifically, the sleeve 74 can slide between multiple protrusions of the limiting member 6); the sleeve 74 has serrated protrusions; when the pressing protrusion 71 is subjected to an outward pushing force, the pressing protrusion 71 slides outward within the bottom hole 14 (wherein, the outward side is the side of the bottom hole 14 near the back shell edge 101); when the pressing protrusion 71 slides outward within the bottom hole 14, a part of the connecting part 73 slides within the bottom groove 16, and another part of the connecting part 73 slides within the telescopic notch 60, and the sleeve 74 slides within the limiting member 6;

[0103] Since the spring 3 is confined between the protrusion 411 in the rod and the perforated baffle 13, the spring 3 always applies an inward thrust to the protrusion 411 in the rod (the inward thrust is opposite to the outward thrust), and the inward thrust is transmitted to the rotating member 2 through the top of the connecting rod 41.

[0104] When the sleeve 74 slides outward within the limiting member 6, the rotating member 2 is subjected to an inward thrust, and the serrated protrusion of the sleeve 74 can contact the rotating member 2; specifically, the serrated protrusion of the sleeve 74 contacts at least one rotating protrusion of the rotating member 2.

[0105] When the tip of the serrated protrusion of the sleeve 74 contacts a rotating inclined surface on the rotating member 2, the sleeve 72 is subjected to an outward thrust and the rotating member 2 is subjected to an inward thrust, so the rotating member 2 can rotate relative to the connecting rod 41. The two thrusts will force the rotating member 2 to rotate in the first direction (wherein, the first direction is the direction of rotation, the axis of rotation of the first direction is the central axis of the connecting rod 41, and the first direction is the same as the direction from the first surface 631 to the third surface 633).

[0106] The accompanying drawings of this specification show the limiting member 6 from multiple perspectives. The first view is a view facing the telescopic notch 60, and the second view is the opposite of the first view. If the first and second views are regarded as the bottom and top surfaces of the limiting member 6, then the third, fourth, fifth, and sixth views are views of four non-overlapping side surfaces of the limiting member 6, wherein the side surfaces do not overlap with the bottom and top surfaces.

[0107] In this instruction manual, the back cover with retractable feet has at least two states: a pop-up feet state and a retracted feet state.

[0108] Reference Figures 1-26 When the back shell with telescopic feet is in the retracted foot position, if the pressing protrusion is subjected to an outward pushing force from the outside, the pushing force is transmitted to the serrated protrusion, which contacts at least one rotating protrusion, causing the rotating protrusion to slide outward within the notch. Since the tip of the serrated protrusion contacts the rotating inclined surface, the rotating component has a tendency to rotate in the first direction, but this rotational tendency is restricted by the notch. When the rotating protrusion slides outside the notch, the rotating component rotates in the first direction. At this time, if the force applied to the pressing protrusion from the outside stops, the rotating component slides inward under the action of the spring force transmitted by the connecting rod. Since the rotating component has already rotated a small distance in the first direction, when the rotating component slides inward, the rotating protrusion contacts the first surface of a protrusion. The rotating component rotates in the first direction while sliding inward until at least one rotating protrusion engages with the first and second surfaces of a protrusion, and the rotating component can no longer slide or rotate. At this time, the back shell with telescopic feet is in the pop-out foot position.

[0109] When the back cover with telescopic feet is in the pop-out foot position, at least one rotating protrusion is engaged between the first and second surfaces of a protrusion due to the inward thrust transmitted by the spring. At this time, if the protrusion is not subjected to external force, it can slide freely within the bottom hole. If the protrusion is subjected to an outward thrust applied externally, the tip of the serrated protrusion contacts at least one rotating inclined surface. There exists a state (denoted as the first state): while a portion of a rotating protrusion contacts the first and second surfaces of a protrusion, another portion of the rotating protrusion contacts the serrated protrusion. When the thrust on the sleeve is transmitted to the rotating protrusion, causing it to tend to slide outward, the first state is released—when the rotating protrusion begins to slide outward. That is, the rotating component is no longer in contact with the first surface, but the rotation tendency of the rotating component due to the force on the rotating inclined surface is such that the rotating protrusion is still in contact with the second surface until the rotating protrusion slides to the point where it can no longer contact the second surface, and the rotation tendency of the rotating component is no longer restricted by the second surface. At this time, the rotating protrusion rotates in the first direction. If the external force is stopped, the rotating protrusion slides inward under the elastic force of the spring, so that the rotating inclined surface contacts the third surface. At this time, the rotating component continues to rotate in the first direction until the rotating protrusion is restricted to rotate by the gap between the two protrusions. If the external force is stopped, the rotating protrusion slides to the bottom of the gap under the elastic force of the spring. At this time, the back shell with the retractable foot pad is in the retracted foot pad state.

[0110] exist Figures 17 to 25 In the middle, the limiting component is fixed in the fixing groove of the mounting cover. The mounting cover is actually fixed to the back shell body. The mounting cover is not shown in these figures, and only a part of the back shell body is shown in these figures.

[0111] exist Figure 18 , 19 In figures 20, 23, 24, and 25, the spring is actually located between the protrusion in the rod and the perforated baffle; the spring is not shown in these figures.

[0112] like Figure 17 As shown, the back shell with retractable feet is in the retracted foot position.

[0113] like Figure 18 As shown, from Figure 17 Starting from the state shown, the pressing protrusion is pushed outward a certain distance, and at least one rotating protrusion slides to a certain position in the middle of at least one notch in the rotating member; the foot pad head protrudes a portion;

[0114] like Figure 19 As shown, from Figure 18Starting from the state shown, the pressing protrusion is pushed outward a certain distance, and at least one rotating protrusion slides in at least one notch of the rotating member to a position close to the top.

[0115] like Figure 20 As shown, from Figure 19 Starting from the state shown, after pushing the pressing protrusion outward a certain distance, at least one rotating protrusion slides out of at least one notch of the rotating member, and the rotating member rotates a certain distance relative to the connecting rod (the rotating member starts to rotate in the first direction from the moment the rotating protrusion slides out of the notch). The external pushing force applied to the pressing protrusion stops, but the spring between the protrusion in the rod and the perforated baffle has elastic force. The elastic force pushes the connecting rod and pushes the rotating member to move inward. Since the rotating member has already rotated a certain distance relative to the connecting rod, the rotating protrusion cannot return to the notch, but contacts the first surface of an adjacent protrusion.

[0116] like Figure 21 As shown, from Figure 20 Starting from the state shown, the protrusion is not pushed by the outside when pressed. While the protrusion slides inward under the action of the spring force, it continues to rotate in the first direction until the rotating protrusion contacts the second surface of the protrusion. Figure 21 As shown, the rotating protrusion cannot rotate or slide, and the back cover with the retractable feet is in the pop-out foot position.

[0117] like Figure 22 As shown, from Figure 21 When the state shown is reached, the pressing protrusion is pushed outward by the outside, causing the serrated protrusion of the sleeve to contact the rotating inclined surface, pushing the rotating part to slide outward and forcing the rotating part to rotate a certain distance in the first direction. At this time, the external pushing force stops, and the rotating protrusion contacts the third surface of the protrusion under the action of the spring force.

[0118] like Figure 23 As shown, from Figure 22 The state shown is that when the protrusion is pressed, it is not pushed outward by the outside. When the protrusion is rotated, it contacts the third surface of the protrusion under the action of the spring force, causing the rotating part and the sleeve to slide inward. While the rotating part slides inward, it rotates in the first direction, causing a part of the rotating protrusion to extend into the notch, but not to contact the two sides of the notch.

[0119] like Figure 24 As shown, from Figure 23 Starting from the state shown, pressing the protrusion does not receive any external outward pushing force, and rotating the protrusion extends it deeper into the notch. Due to the side restriction of the notch, rotating the protrusion cannot rotate in the first direction.

[0120] like Figure 25 As shown, from Figure 24As shown, at least one rotating protrusion is fully inserted into the area of ​​the notch, and the footpad head retracts partially.

[0121] Under the action of the spring force, the connecting rod, rotating protrusion, and sleeve will continue to slide inward until... Figure 17 The foot pads are shown in the retracted position.

[0122] In practical applications, refer to Figure 16 The outer side of the back shell with telescopic foot pads has a support plate groove, and two back shell rotating shafts are arranged in the support plate groove. The other part of the back shell rotating shaft is fixed to the support plate, so that the support plate can rotate relative to the support plate groove. The inner side of the back shell of the telescopic foot pads has a side opposite to the support plate groove, and a part of the back shell rotating shaft is fixed to the inner side of the back shell of the telescopic foot pads. A magnetic attraction mechanism is provided on the support plate, and the back shell with telescopic foot pads has an internal magnetic attraction component. The magnetic attraction mechanism and the internal magnetic attraction component attract each other, so that the support plate can be bound in the support plate groove.

[0123] exist Figure 16 In the middle, the side opposite to the bracket plate groove is not related to the mounting cover 5 and does not interfere with each other; in practical applications, the bracket plate, bracket plate groove, back shell pivot, etc. are not essential components of the back shell with telescopic feet.

[0124] Reference Figure 26 The display device or the back cover with retractable feet can be equipped with a foot head; Figure 26 The “one mounting hole” is used to fix the display device to other components via a hinge. The “one mounting hole” is not a necessary component of the back shell with telescopic feet, nor is it a necessary component of the display device.

[0125] In practical applications, display devices can be configured with multiple foot pads, multiple bottom grooves, and multiple mounting holes.

[0126] In a first aspect embodiment of this utility model, a pressing protrusion provided in the bottom hole allows the user to easily adjust the extension and retraction of the foot pad. Specifically, the user pushes the pressing protrusion outward a certain distance and then releases it to achieve the extension and retraction adjustment of the foot pad, ensuring at least the transition between the extended foot pad state and the retracted foot pad state, thus improving the user experience. Applying a back shell with extendable foot pads to display devices can meet various user needs for supporting display devices (e.g., the need for extended foot pads for support, the need for retracted foot pads for support), thereby improving the user experience.

[0127] Reference Figures 1-26 According to an embodiment of the second aspect of the present invention, a display device is provided, including a back shell with telescopic feet as described in the first aspect of the present invention and a screen.

[0128] In the second aspect of the technical solution of this utility model, a display device is provided. By adopting a back shell with telescopic feet, the telescopic adjustment of the feet is realized, which solves the problem that the feet of the display device in the prior art are not easy to adjust and extend to adapt to various usage scenarios.

[0129] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included in this invention.

Claims

1. A back cover with retractable foot pads, comprising multiple components, characterized in that, The multiple components include a back shell body, a rotating component, a spring, a foot pad body, a mounting cover, a limiting component, and a pressing component; The back shell body has a back shell edge and a mounting part. Foot pad holes are opened on the back shell edge. The mounting part includes a first limiting part, a second limiting part, a perforated baffle, a bottom hole and a bottom groove. The perforated baffle has a baffle hole. The rotating component has a rotating column, a rotating groove, and multiple rotating protrusions; The foot pad body has a connecting rod and a foot pad head. The middle part of the connecting rod is provided with a rod protrusion, and the top end of the connecting rod is rotatably connected to the rotating groove. The connecting rod passes through the baffle hole, and the protrusion in the rod and the foot pad head are respectively located on both sides of the perforated baffle; The spring is sleeved on the connecting rod and is located between the protrusion in the rod and the perforated baffle. The limiting member is a tubular shape with multiple protrusions, and a telescopic notch is provided on the side of the limiting member that does not have protrusions. The mounting cover is fixed to the back shell body, and a fixing groove is provided in the middle of the side of the mounting cover near the back shell body. The limiting member is fixed in the fixing groove, so that the telescopic notch is opposite to the bottom groove; The pressing component includes a pressing protrusion, a conductive part, a connecting part, and a sleeve. The pressing protrusion is disposed at one end of the conductive part, and the connecting part is disposed at the other end of the conductive part. The connecting part is adjacent to the conductive part and the sleeve. The pressing protrusion passes through the bottom hole, a part of the connecting portion is in the telescopic notch, another part of the connecting portion is in the bottom groove, and the sleeve is fitted inside the limiting member so that the sleeve can slide inside the limiting member. The bottom hole is set as a strip hole, and when the pressing protrusion slides in the bottom hole, the sleeve slides in the limiting member. The back shell with telescopic foot pads has at least a retracted foot pad state and a pop-out foot pad state, wherein, in the retracted foot pad state, the foot pad head is located between the first limiting part and the second limiting part; in the pop-out foot pad state, the foot pad head extends out from the foot pad hole; The positional relationship of the multiple components is set such that: In the retracted foot pad state, at least one of the rotating protrusions is between two protrusions. When the protrusion is pressed and pushed outward by an external force, the sleeve slides outward within the limiting member. The sleeve pushes at least one of the rotating protrusions outward. When the rotating protrusion slides out of the gap formed between the two protrusions, the rotating member rotates. At this time, if the external force stops, the rotating protrusion slides inward under the action of the spring force and continues to rotate, eventually stopping on one of the protrusions. At this time, the surfaces of the rotating protrusion and the protrusions in contact are the first surface and the second surface. This is the pop-out foot pad state. The outer side is the side of the bottom hole near the edge of the back shell. The protrusion has a third surface adjacent to the second surface, and the third surface is not adjacent to the first surface. In the pop-up foot pad state, when the pressing protrusion slides outward under external force, it pushes at least one of the rotating protrusions to slide outward, and the rotating component rotates; after the pressing protrusion no longer contacts the first surface and the second surface, if the external force stops, the rotating protrusion slides inward under the action of spring force and continues to rotate until the rotating protrusion extends into the notch formed by the two protrusions. The rotating protrusion is restricted from rotating by the notch, and the rotating protrusion continues to slide inward in the notch under the action of spring force until the foot pad is retracted.

2. The back shell with telescopic foot pads according to claim 1, characterized in that, The size of the baffle hole is set so that the part of the connecting rod without the central protrusion can pass through, while the part with the central protrusion cannot pass through, and the spring cannot pass through.

3. The back shell with telescopic foot pads according to claim 1, characterized in that, The retracted footpad state includes: When a rotating protrusion of the rotating component engages with a notch of the limiting component, and the foot pad head contacts the perforated baffle, the back shell with the telescopic foot pad is in the retracted foot pad state.

4. The back shell with telescopic foot pads according to claim 1, characterized in that, The retracted footpad state also includes: A rotating protrusion of the rotating member engages with a notch of the limiting member, and the connecting part is on the bottom side of the bottom groove; wherein, the bottom side is the side of the bottom groove away from the edge of the back shell.

5. The back shell with telescopic foot pads according to claim 1, characterized in that, The sleeve has serrated protrusions.

6. The back shell with telescopic foot pads according to claim 5, characterized in that, The top of the rotating protrusion has a rotating ramp.

7. The back shell with telescopic foot pads according to claim 6, characterized in that, When the serrated protrusion contacts the rotating inclined surface, the rotating component rotates relative to the connecting rod.

8. The back shell with telescopic foot pads according to claim 7, characterized in that, The contact between the serrated protrusion and the rotating inclined plane includes line-to-surface contact and surface-to-surface contact.

9. The back shell with telescopic foot pads according to claim 8, characterized in that, The rotating component rotates relative to the connecting rod in a direction about the central axis of the connecting rod, from the first surface to the third surface.

10. A display device, characterized in that, The display device has a screen and a back cover with retractable feet as claimed in any one of claims 1-9.

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