CN110608351B - Concealed display lifting device - Google Patents

Abstract

The invention discloses a hidden display lifting device, which comprises a rotating unit connected with a display, wherein the back of the display is provided with a display groove, and the rotating unit is arranged in the display groove; the rotating unit comprises a quick-dismantling connecting piece which is detachably connected with the display groove; the quick-release connecting piece is fixedly connected with a friction assembly, and the friction assembly is rotationally connected with a central shaft piece. The device enables the display to be lifted and rotated through the arrangement of the rotating unit and the lifting unit, so that the angle and the height of the display can be conveniently adjusted according to the requirements of users; the device locates the rotary unit in the display groove, so that the distance between the lifting unit and the display is shortened while the whole device is more attractive, and the lifting of the display is closer to zero damping hand feeling. Furthermore, the display is enabled to have good rotating hand feeling through the arrangement of the friction component.

Description

Concealed display lifting device

Technical Field

The invention relates to the field of displays, in particular to a hidden display lifting device.

Background

In the present day, various displays such as liquid crystal displays of computers are widely used, and the displays cannot be directly erected on a working surface generally, and support by a bracket is needed. The existing display bracket is generally fixed in height and angle, namely the height and angle of the display cannot be adjusted when the display is used. The proper display height and angle can effectively improve the experience of a user using the display, and the adjustment of the display height according to different application scenes and users is very important. There is a need for a display stand that can adjust the height and angle of the display.

Disclosure of Invention

The invention aims to provide a hidden display lifting device which solves the problem that the height and angle of a display cannot be adjusted by the existing display bracket.

To achieve the purpose, the invention adopts the following technical scheme:

The hidden display lifting device comprises a rotating unit connected with a display, wherein a display groove is formed in the back surface of the display, and the rotating unit is arranged in the display groove;

The rotating unit comprises a quick-dismantling connecting piece which is detachably connected with the display groove; the quick-release connecting piece is fixedly connected with a friction assembly, and the friction assembly is rotationally connected with a central shaft piece.

Optionally, still fixedly connected with first rotatory friction piece between the friction subassembly with quick detach connecting piece, the quick detach connecting piece deviates from the one side of first rotatory friction piece still fixedly connected with second rotatory friction piece, the one side that the second rotatory friction piece deviates from the quick detach connecting piece still fixedly connected with is used for compressing tightly rotatory compressing tightly of second rotatory friction piece.

Optionally, the central shaft member includes a central shaft and a central shaft support member fixedly connected to the central shaft;

the friction assembly comprises a pitching piece which is rotationally connected with the central shaft; a torsion spring is sleeved on the central shaft and positioned between the pitching piece and the central shaft supporting piece; one end of the torsion spring is abutted against the central shaft supporting piece, and the other end of the torsion spring is abutted against the pitching piece.

Optionally, the friction assembly further comprises a pitch fixture and a friction washer; the pitching fixing piece and the friction washer are sleeved on the central shaft; one end of the central shaft sequentially penetrates through the torsion spring, the pitching piece and the friction washer, and is in threaded connection with the pitching fixing piece; the pitch fixture compresses the friction washer.

Optionally, the central shaft supporting piece is fixedly sleeved at the central position of the central shaft, and two ends of the central shaft are respectively and rotatably connected with one friction assembly; and pitching pieces in the two friction assemblies are fixedly connected with the quick-release connecting pieces.

Optionally, at least one first clamping piece and at least one second clamping piece are fixedly connected to two opposite sides of the quick-release connecting piece respectively, a first clamping groove corresponding to the first clamping piece and a second clamping groove corresponding to the second clamping piece are formed in the display groove, the first clamping piece is in clamping connection with the first clamping groove, and the second clamping piece is in clamping connection with the second clamping groove; the display groove is fixedly connected with a first groove cover plate for covering the first clamping groove and a second groove cover plate for covering the second clamping groove; the quick-release connecting piece is provided with a quick-release button for detaching the quick-release connecting piece from the display groove.

Optionally, the hidden display lifting device further comprises a lifting unit, wherein the lifting unit comprises a lifting frame, the lifting frame is connected with a connecting piece in a sliding manner, and the connecting piece is fixedly connected with the central shaft piece.

Optionally, a containing groove is formed in one surface, away from the display, of the lifting frame along the lifting direction, a sliding rail is fixedly arranged in the containing groove, and the sliding rail is in sliding connection with the connecting piece;

a sliding groove is formed in one surface of the lifting frame, which faces the display, and penetrates through the bottom of the accommodating groove; one end of the connecting piece extends out of the sliding groove to the outside of the lifting frame to be fixedly connected with the central shaft piece;

one surface of the connecting piece, which is away from the sliding groove, is fixedly connected with a fixed force spring support frame, and the fixed force spring support frame is provided with a fixed force spring; the constant force spring comprises a winding part and a stretching part which are integrally formed;

The fixed force spring support frame is fixedly provided with a bearing, and the winding part of the fixed force spring is fixedly sleeved on the bearing; the stretching part is fixedly connected with the lifting frame.

Optionally, the sliding rail is slidably connected with a sliding block through a ball chain, and one surface of the sliding block, which faces away from the sliding rail, is fixedly connected with the connecting piece;

the connecting piece comprises a first connecting piece fixedly connected with the sliding block, two opposite sides of the first connecting piece are respectively fixedly connected with a second connecting piece, and the sliding block is positioned between the two second connecting pieces;

The lifting frame is provided with two sliding grooves, the two sliding grooves correspond to the two second connecting pieces one by one, and the end part of each second connecting piece, which is far away from the first connecting piece, penetrates through the corresponding sliding groove and is fixedly connected with the central shaft piece.

Optionally, the display lifting device further comprises a base, a convex base convex part is arranged on the base, a lifting frame groove corresponding to the base convex part is formed in one surface of the lifting frame, facing the base, of the lifting frame, and the base convex part is inserted into the lifting frame groove;

The fixed force spring support frame comprises a fixed force spring support sheet which is fixedly connected with one surface of the connecting piece, which is away from the sliding block; the fixed force spring support frames are fixedly connected to the two opposite sides of the fixed force spring support piece respectively, and the sliding block is positioned between the two fixed force spring support frames;

two bearings which are arranged along the lifting direction are fixedly arranged in each fixed force spring supporting frame, and each bearing is fixedly sleeved with one fixed force spring;

the end part of the accommodating groove, which is far away from the base, is provided with two hooks, the two hooks are in one-to-one correspondence with the two fixed force spring supporting frames, and the stretching parts of the two fixed force springs in the same fixed force spring supporting frame are fixedly connected with the same hooks.

Compared with the prior art, the invention has the following beneficial effects:

The hidden display lifting device provided by the invention can enable the display to lift and rotate through the arrangement of the rotating unit and the lifting unit, so that the angle and the height of the display can be conveniently adjusted according to the requirements of users. This hidden display elevating gear sets up the display recess and locates the rotary unit in the display recess at the back of display for the whole more pleasing to the eye distance of elevating unit and display that has shortened simultaneously of device, the lift of messenger's display is closer to zero damping and is felt. Furthermore, the hidden display lifting device also enables the display to rotate and feel good through the arrangement of the friction component.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

The structures, proportions, sizes, etc. shown in the drawings are shown only in connection with the present disclosure, and are not intended to limit the scope of the invention, since any modification, variation in proportions, or adjustment of the size, etc. of the structures, proportions, etc. should be considered as falling within the spirit and scope of the invention, without affecting the effect or achievement of the objective.

Fig. 1 is a schematic structural diagram of a lifting device for a hidden display according to an embodiment of the present invention;

FIG. 2 is an exploded view of a hidden display lifting device according to an embodiment of the present invention;

Fig. 3 is a schematic structural diagram of a rotating unit according to an embodiment of the present invention;

FIG. 4 is an exploded view of a rotary unit according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a quick-release connector according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a display according to an embodiment of the present invention;

fig. 7 is another schematic structural diagram of the lifting unit and the base according to the embodiment of the present invention;

Fig. 8 is a schematic structural diagram of a lifting unit and a base according to an embodiment of the present invention;

fig. 9 is a schematic view of a part of a structure of a lifting unit according to an embodiment of the present invention;

Fig. 10 is a schematic structural diagram of a base according to an embodiment of the present invention;

FIG. 11 is a schematic view of a structure of a slide rail and a slider according to an embodiment of the present invention;

FIG. 12 is a schematic view of another structure of a slide rail and a slider according to an embodiment of the present invention;

fig. 13 is a schematic structural diagram of a lifting frame according to an embodiment of the present invention.

Illustration of: 1. a lifting unit; 10. a lifting frame; 100. a sliding groove; 101. a first crane aperture; 102. a second crane aperture; 103. a third crane aperture; 11. a receiving groove; 111. concave holes of the accommodating groove; 12. a slide rail; 121. a first slide rail hole; 122. a second slide rail hole; 123. a slide rail groove; 13. a slide block; 131. a first slider groove; 132. a second slider groove; 133. a ball return passage; 14. a connecting piece; 141. a first connecting piece; 142. a second connecting piece; 15. a constant force spring support frame; 151. a constant force spring support plate; 152. a constant force spring support frame; 16. a constant force spring; 161. a winding part; 162. a stretching section; 17. a hook; 18. a bead chain; 19. a bearing; 20. a base; 21. a base convex part; 3. a rotating unit; 31. quick release connectors; 311. a quick release connector slot; 312. a quick-release connecting piece through hole; 313. a first clamping piece; 314. a second clamping piece; 315. a quick release button; 32. a friction assembly; 321. a pitching member; 322. a torsion spring; 323. a friction washer; 324. a pitch fixture; 33. a central shaft member; 331. a central shaft; 332. a central shaft support; 34. a first rotary friction member; 35. a second rotary friction member; 36. rotating the pressing member; 4. a display; 40. a display recess; 401. a first engagement groove; 402. a second engagement groove; 41. a first recess cover plate; 42. and a second groove cover plate.

Detailed Description

In order to make the objects, features and advantages of the present invention more comprehensible, the technical solutions in the embodiments of the present invention are described in detail below with reference to the accompanying drawings, and it is apparent that the embodiments described below are only some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. It is noted that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.

The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.

The embodiment of the invention provides a hidden display lifting device.

Referring to fig. 1 and 2, the hidden display lifting device includes a rotating unit 3 connected to a display 4, and the rotating unit 3 is connected to a lifting unit 1. The back of the display 4 is provided with a display recess 40, and the rotation unit 3 is arranged in the display recess 40.

The rotation unit 3 includes a quick release coupling 31, and the quick release coupling 31 is detachably coupled to the display recess 40. The quick-release connecting piece 31 is fixedly connected with a friction component 32, and the friction component 32 is rotationally connected with a central shaft piece 33. The lifting unit 1 comprises a lifting frame 10, wherein the lifting frame 10 is connected with a connecting piece 14 in a sliding manner, and the connecting piece 14 is fixedly connected with a central shaft piece 33.

The hidden display lifting device provided by the invention enables the display 4 to be lifted and rotated through the arrangement of the rotating unit 3 and the lifting unit 1, and is convenient for adjusting the angle and the height of the display 4 according to the requirements of users. The hidden display lifting device is provided with the display groove 40 on the back of the display 4 and the rotating unit 3 is arranged in the display groove 40, so that the distance between the lifting unit 1 and the display 4 is shortened while the whole device is more attractive, and the lifting of the display 4 is closer to zero damping hand feeling. Further, the display 4 is provided with a good rotating hand feeling by the friction component 32.

Referring to fig. 2 to 4, in the embodiment of the present invention, a first rotary friction member 34 is fixedly connected between the friction assembly 32 and the quick release connecting member 31, a second rotary friction member 35 is fixedly connected to a surface of the quick release connecting member 31 facing away from the first rotary friction member 34, and a rotary pressing member 36 for pressing the second rotary friction member 35 is fixedly connected to a surface of the second rotary friction member 35 facing away from the quick release connecting member 31. Wherein, the first rotary friction piece 34, the second rotary friction piece 35 and the rotary pressing piece 36 are all annular. The rotational feel of the display 4 can be further enhanced by the provision of the rotational friction member.

In the embodiment of the present invention, the central shaft member 33 includes a central shaft 331 and a central shaft support member 332 fixedly coupled to the central shaft 331. The central shaft support 332 is fixedly sleeved at the central position of the central shaft 331, and two ends of the central shaft 331 are respectively and rotatably connected with one friction assembly 32.

The friction assembly 32 includes a pitching member 321 fixedly coupled to the quick release coupling 31. The first rotary friction member 34 is located between the pitching member 321 and the quick-release connecting member 31, and is pressed against the quick-release connecting member 31 by the pitching member 321. The pitching member 321 is rotatably connected to the central shaft 331.

The central shaft 331 is further sleeved with a torsion spring 322, and the torsion spring 322 is located between the pitching member 321 and the central shaft supporting member 332. One end of the torsion spring 322 abuts the center shaft support 332, and the other end abuts the pitching 321. Specifically, the central shaft supporting member 332 is provided with a blind hole for inserting one end of the torsion spring 322, and the pitching member 321 is provided with a blind hole for inserting the other end of the torsion spring 322.

The friction pack 32 also includes a pitch fixture 324 and a friction washer 323. The pitch fixing member 324 and the friction washer 323 are both sleeved on the central shaft 331. One end of the central shaft 331 sequentially passes through the torsion spring 322, the pitching member 321 and the friction washer 323, and is screwed with the pitching fixing member 324. The pitch fixture 324 compresses the friction washer 323. The pitch fixture 324 is embodied as a bolt.

The arrangement of the torsion spring 322 and the friction washer 323 can better balance the forward tilting moment generated by the gravity of the display 4, so that the angle of the display 4 can be stably stopped along with the rotation and the hand feeling is good.

Referring to fig. 2, 5 and 6, a quick-release connector slot 311 is formed on a surface of the quick-release connector 31 facing the lifting unit 1, a through quick-release connector through hole 312 is formed at a bottom of the quick-release connector slot 311, the pitching member 321 and the first rotary friction member 34 are located in the quick-release connector slot 311, and the pitching fixing member 324, the friction washer 323, the torsion spring 322 and the central shaft 331 are all disposed in the quick-release connector through hole 312.

At least one first clamping member 313 and at least one second clamping member 314 are fixedly connected to opposite sides of the quick release connecting member 31, and a first clamping groove 401 corresponding to the first clamping member 313 and a second clamping groove 402 corresponding to the second clamping member 314 are formed in the display groove 40. The first engaging member 313 is engaged with the first engaging groove 401, and the second engaging member 314 is engaged with the second engaging groove 402. The display groove 40 is fixedly connected with a first groove cover plate 41 for covering the first clamping groove 401 and a second groove cover plate 42 for covering the second clamping groove 402. The quick release connector 31 is further provided with a snap button for detaching the quick release connector 31 from the display groove 40, and the snap button is arranged to apply a force to the quick release connector 31 so as to detach the quick release connector 31 from the display groove 40.

Referring to fig. 7 to 9, a receiving groove 11 is formed in a surface of the lifting frame 10 facing away from the display 4 along a lifting direction, a sliding rail 12 is fixedly arranged in the receiving groove 11, and the sliding rail 12 is slidably connected with a connecting piece 14.

A sliding groove 100 is formed in one surface of the lifting frame 10 facing the display 4, and the sliding groove 100 penetrates through the bottom of the accommodating groove 11. One end of the connecting member 14 protrudes from the sliding groove 100 to the outside of the elevation frame 10 to be connected to the center shaft support 332.

The surface of the connecting piece 14, which faces away from the sliding groove 100, is fixedly connected with a fixed force spring support 15, and the fixed force spring support 15 is provided with a fixed force spring 16. The constant force spring 16 comprises a winding part 161 and a stretching part 162 which are integrally formed, the winding part 161 is rotatably connected with the constant force spring supporting frame 15, and the stretching part 162 is fixedly connected with the lifting frame 10.

The sliding rail 12 and other parts are arranged on the surface of the lifting frame 10, which is away from the display 4, so that the surface of the lifting frame 10, which is towards the display 4, is more attractive, and the realization of the lifting function is not affected. The display 4 is lifted and lowered stably by the arrangement of the constant force spring 16.

In this embodiment, the connecting piece 14 includes a first connecting piece 141 fixedly connected to the slider 13, two second connecting pieces 142 are fixedly connected to opposite sides of the first connecting piece 141, and the slider 13 is located between the two second connecting pieces 142.

The lifting frame 10 is provided with two sliding grooves 100, the two sliding grooves 100 are in one-to-one correspondence with the two second connecting pieces 142, and the end part of each second connecting piece 142 far away from the first connecting piece 141 penetrates through the corresponding sliding groove 100 to be connected with the central shaft support 332.

The connection of the connector 14 to the central shaft support 332 is made more stable by the two-tab design.

In this embodiment, the fixed force spring supporting frame 15 includes a fixed force spring supporting plate 151, and the fixed force spring supporting plate 151 is fixedly connected to a surface of the connecting member 14 facing away from the slider 13. The opposite sides of the fixed force spring supporting plate 151 are fixedly connected with a fixed force spring supporting frame 152 respectively, and the sliding block 13 is positioned between the two fixed force spring supporting frames 152.

Two bearings 19 arranged along the lifting direction are fixedly arranged in each fixed force spring supporting frame 152, and each bearing 19 is fixedly sleeved with one fixed force spring 16. Two hooks 17 are fixedly arranged at the top of the accommodating groove 11, the two hooks 17 are in one-to-one correspondence with the two constant force spring supporting frames 152, and the stretching parts 162 of the two constant force springs 16 positioned in the same constant force spring supporting frame 152 are fixedly connected with the same hook 17.

The rotational axis of the winding portion 161 of each constant force spring 16 is perpendicular to the lifting direction and parallel to the side of the slide rail 12 facing the bottom of the slide groove 100. The display 4 can be lifted more stably by the arrangement of a plurality of constant force springs 16.

Referring to fig. 10, in the present embodiment, the display lifting device further includes a base 20, a protruding base protrusion 21 is disposed on the base 20, a lifting frame groove corresponding to the base protrusion 21 is disposed on a surface of the lifting frame 10 facing the base 20, and the base protrusion 21 is inserted into the lifting frame groove.

Referring to fig. 11, in the present embodiment, a sliding block 13 is slidably connected to the sliding rail 12, and a surface of the sliding block 13 facing away from the sliding rail 12 is fixedly connected to a connecting member 14. Specifically, two sliding blocks 13 are slidably connected to the sliding rail 12, and the two sliding blocks 13 are fixedly connected to the connecting piece 14.

Referring to fig. 12, a ball load channel is disposed between the slide rail 12 and the slide block 13, a ball return channel 133 is disposed on the slide block 13, and two ends of the ball load channel and two ends of the ball return channel 133 are respectively abutted to form a ball circulation channel. The ball circulation channel is internally provided with a ball chain 18, and the ball chain 18 circularly slides in the ball circulation channel. The sliding block 13 slides on the sliding rail 12 more smoothly through the arrangement of the ball chain.

Specifically, a first slider groove 131 is formed on one surface of the slider 13 facing the sliding rail 12, and the first slider groove 131 is slidably connected with the sliding rail 12.

The two opposite groove walls of the first sliding block groove 131 are respectively provided with a second sliding block groove 132, two opposite side surfaces of the sliding rail 12 are respectively provided with a sliding rail groove 123 corresponding to the second sliding block groove 132, and the second sliding block groove 132 and the sliding rail groove 123 are combined to form a ball bearing channel. The second slider groove 132 and the slide rail groove 123 are both semicircular grooves, and the cross section of the ball load channel is circular.

The slider 13 is provided with two ball return passages 133 penetrating in the lifting direction, and each ball return passage 133 is located beside the corresponding ball load passage.

The ball chain 18 includes a chain belt holder on which a plurality of balls are equally spaced.

Referring to fig. 7 and 1, in the present embodiment, a recess hole 111 of the receiving groove 11 corresponding to the sliding rail 12 is formed at an end of the receiving groove 11 facing the base 20, and the sliding rail 12 is inserted into the recess hole 111 of the receiving groove facing the end of the base 20. The design of the recess 111 of the receiving groove can facilitate the installation of the slide rail 12.

Specifically, a first lifter hole 101 communicating with the recess hole 111 of the accommodating groove is formed in a surface of the lifter 10 facing away from the display 4, and a second lifter hole 102 communicating with the recess hole 111 of the accommodating groove is formed in a surface of the lifter 10 facing the display 4. The slide rail 12 is provided with a first slide rail hole 121. Slide rail fastening bolts are arranged in the first lifting frame holes 101 in a penetrating mode. The slide rail fastening bolt sequentially passes through the first lifting frame hole 101, the first slide rail hole 121 and the second lifting frame hole 102, and is in threaded connection with a slide rail fastening nut.

Further, a plurality of third lifting frame holes 103 communicated with the accommodating groove 11 are formed in one surface of the lifting frame 10 facing the display 4, and the plurality of third lifting frame holes 103 are distributed at equal intervals along the lifting direction. The sliding rail 12 is provided with a plurality of through second sliding rail holes 122, and the second sliding rail holes 122 are distributed at equal intervals along the lifting direction. The third plurality of crane holes 103 and the second plurality of rail holes 122 are in one-to-one correspondence. The connection between the slide rail 12 and the crane 10 can be made more stable by the corresponding third crane aperture 103 and second slide rail aperture 122.

According to the display lifting device provided by the embodiment, the display 4 can be lifted and rotated by the arrangement of the rotating unit 3 and the lifting unit 1, so that the angle and the height of the display 4 can be conveniently adjusted according to the requirements of a user. The hidden display lifting device is provided with the display groove 40 on the back of the display 4 and the rotating unit 3 is arranged in the display groove 40, so that the distance between the lifting unit 1 and the display 4 is shortened while the whole device is more attractive, and the lifting of the display 4 is closer to zero damping hand feeling. Further, the display lifting device also enables the display 4 to rotate and feel good through the arrangement of the friction assembly 32. Furthermore, the display lifting device locates the sliding rail 12 and other parts on the surface of the lifting frame 10 facing away from the display 4, so that the surface of the lifting frame 10 facing the display 4 is more attractive, and the realization of the lifting function is not affected; the display 4 is lifted and lowered stably by the arrangement of a plurality of constant force springs 16.

The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (5)

1. The hidden display lifting device is characterized by comprising a rotating unit (3) connected with a display (4), wherein the rotating unit (3) is connected with a lifting unit (1); a display groove (40) is formed in the back of the display (4), and the rotating unit (3) is arranged in the display groove (40);

The rotating unit (3) comprises a quick-release connecting piece (31), and the quick-release connecting piece (31) is detachably connected with the display groove (40); the quick-release connecting piece (31) is fixedly connected with a friction assembly (32), and the friction assembly (32) is rotationally connected with a central shaft piece (33);

The lifting unit (1) comprises a lifting frame (10), wherein the lifting frame (10) is connected with a connecting piece (14) in a sliding manner, and the connecting piece (14) is fixedly connected with the central shaft piece (33);

A first rotary friction piece (34) is fixedly connected between the friction assembly (32) and the quick-release connecting piece (31), a second rotary friction piece (35) is fixedly connected to one surface of the quick-release connecting piece (31) deviating from the first rotary friction piece (34), and a rotary pressing piece (36) for pressing the second rotary friction piece (35) is fixedly connected to one surface of the second rotary friction piece (35) deviating from the quick-release connecting piece (31);

one surface of the lifting frame (10) deviating from the display (4) is provided with a containing groove (11) along the lifting direction, a sliding rail (12) is fixedly arranged in the containing groove (11), and the sliding rail (12) is in sliding connection with the connecting piece (14);

A sliding groove (100) is formed in one surface of the lifting frame (10) facing the display (4), and the sliding groove (100) penetrates through the groove bottom of the accommodating groove (11); one end of the connecting piece (14) extends out of the sliding groove (100) to the outside of the lifting frame (10) to be fixedly connected with the central shaft piece (33);

One surface of the connecting piece (14) deviating from the sliding groove (100) is fixedly connected with a fixed force spring support frame (15), and a fixed force spring (16) is arranged on the fixed force spring support frame (15); the constant force spring (16) comprises a winding part (161) and a stretching part (162) which are integrally formed;

A bearing (19) is fixedly arranged on the constant force spring support frame (15), and a winding part (161) of the constant force spring (16) is fixedly sleeved on the bearing (19); the stretching part (162) is fixedly connected with the lifting frame (10);

the sliding rail (12) is connected with a sliding block (13) in a sliding manner through a ball chain (18), and one surface of the sliding block (13) deviating from the sliding rail (12) is fixedly connected with the connecting piece (14);

The connecting piece (14) comprises first connecting pieces (141) fixedly connected with the sliding blocks (13), two second connecting pieces (142) are fixedly connected to the two opposite sides of the first connecting pieces (141) respectively, and the sliding blocks (13) are located between the two second connecting pieces (142);

The lifting frame (10) is provided with two sliding grooves (100), the two sliding grooves (100) and the two second connecting pieces (142) are in one-to-one correspondence, and the end part of each second connecting piece (142) far away from the first connecting piece (141) passes through the corresponding sliding groove (100) and is fixedly connected with the central shaft piece (33);

the display lifting device further comprises a base (20), a convex base convex part (21) is arranged on the base (20), a lifting frame groove corresponding to the base convex part (21) is formed in one surface of the lifting frame (10) facing the base (20), and the base convex part (21) is inserted into the lifting frame groove;

The fixed force spring support frame (15) comprises a fixed force spring support sheet (151), and the fixed force spring support sheet (151) is fixedly connected with one surface of the connecting piece (14) which is away from the sliding block (13); two opposite sides of the fixed force spring supporting piece (151) are fixedly connected with a fixed force spring supporting frame (152) respectively, and the sliding block (13) is positioned between the two fixed force spring supporting frames (152);

Two bearings (19) which are arranged along the lifting direction are fixedly arranged in each fixed force spring supporting frame (152), and each bearing (19) is fixedly sleeved with one fixed force spring (16);

The end part of the accommodating groove (11) far away from the base (20) is provided with two hooks (17), the two hooks (17) are in one-to-one correspondence with the two fixed force spring supporting frames (152), and the stretching parts (162) of the two fixed force springs (16) in the same fixed force spring supporting frame (152) are fixedly connected with the same hooks (17).

2. The hidden display lifting device according to claim 1, wherein the central shaft member (33) comprises a central shaft (331) and a central shaft support member (332) fixedly connected to the central shaft (331);

The friction assembly (32) comprises a pitching piece (321), and the pitching piece (321) is rotationally connected with the central shaft (331); a torsion spring (322) is sleeved on the central shaft (331), and the torsion spring (322) is positioned between the pitching piece (321) and the central shaft supporting piece (332); one end of the torsion spring (322) is abutted against the central shaft support (332), and the other end is abutted against the pitching piece (321).

3. The recessed display lifting device of claim 2, wherein the friction assembly (32) further comprises a pitch fixture (324) and a friction washer (323); the pitching fixing piece (324) and the friction washer (323) are sleeved on the central shaft (331); one end of the central shaft (331) sequentially passes through the torsion spring (322), the pitching piece (321) and the friction washer (323), and is in threaded connection with the pitching fixing piece (324); the pitch fixture (324) compresses the friction washer (323).

4. The lifting device for the hidden display according to claim 2, wherein the central shaft supporting member (332) is fixedly sleeved at the central position of the central shaft (331), and two ends of the central shaft (331) are respectively and rotatably connected with one friction assembly (32); pitching pieces (321) in the two friction assemblies (32) are fixedly connected with the quick-release connecting pieces (31).

5. The lifting device for the hidden display according to claim 1, wherein at least one first clamping member (313) and at least one second clamping member (314) are fixedly connected to opposite sides of the quick-release connecting member (31), a first clamping groove (401) corresponding to the first clamping member (313) and a second clamping groove (402) corresponding to the second clamping member (314) are formed in the display groove (40), the first clamping member (313) is in clamping connection with the first clamping groove (401), and the second clamping member (314) is in clamping connection with the second clamping groove (402); the display groove (40) is fixedly connected with a first groove cover plate (41) for covering the first clamping groove (401) and a second groove cover plate (42) for covering the second clamping groove (402); the quick-release connecting piece (31) is provided with a quick-release button (315) for detaching the quick-release connecting piece from the display groove (40).