CN113324149A

CN113324149A - Over-and-under type exhibition frame with adjust display screen function

Info

Publication number: CN113324149A
Application number: CN202110731186.8A
Authority: CN
Inventors: 杨瑞; 徐佩杰; 段玉明; 徐维东
Original assignee: Chongqing City Management College
Current assignee: Chongqing City Management College
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2021-08-31

Abstract

The invention provides a lifting type display rack with a display screen adjusting function, which comprises a frame of the display rack and a touch display screen arranged on the frame, wherein an adjusting device for adjusting the angle of the touch display screen is arranged between the frame and the touch display screen; the adjusting device comprises a mounting seat and an assembly adjusting seat capable of fixing the touch display screen, the mounting seat is movably connected with the assembly adjusting seat through a folding arm, and an adjusting mechanism for adjusting the angle of the assembly adjusting seat is arranged between the mounting seat and the assembly adjusting seat; the assembly adjusting seat is provided with an installation groove, a turntable capable of driving the touch display screen to rotate is arranged in the installation groove, and the assembly adjusting seat is provided with a limiting mechanism for locking the rotation angle of the turntable; a lifting self-locking mechanism fixed on the frame is arranged between one side, far away from the assembly adjusting seat, of the mounting seat and the frame, and the lifting self-locking mechanism can drive the adjusting device to lift on the frame.

Description

Over-and-under type exhibition frame with adjust display screen function

Technical Field

The invention relates to the technical field of automobile exhibition stands, in particular to a lifting type exhibition stand with a display screen adjusting function.

Background

Along with the increasing development of the automobile industry, people have higher and higher requirements on automobile performance, when automobiles are popularized, a large-scale automobile exhibition is required to be held, what is indispensable in the automobile exhibition is a well-known exhibition stand, advertising boards or display screens for playing advertisements are usually arranged on the exhibition stand built around the exhibition stand, the appearance and the performance of the automobiles can be effectively introduced to attract the eyeballs of people, the information can be seen clearly, people can conveniently and quickly find required products, the display screens arranged on the existing exhibition stand cannot adjust the angle and rotate according to requirements, so that the content played by the display screens cannot effectively transmit the information at a certain angle due to the reflection of light, and when the display screens are arranged, the display screens need to be arranged by utilizing a ladder, the danger can be caused due to careless operation, so that the play angle of the display screens can be adjusted, and the display rack with convenient installation and safe use becomes the problem which needs to be solved.

Disclosure of Invention

In order to solve the technical problems, the invention provides the lifting display rack with the function of adjusting the display screen, and mainly aims to adjust the required angle of the touch display screen arranged on the display rack, improve the playing effect of advertisements, and ensure that the display rack is more convenient and faster to install and safer to install.

According to the technical problem to be solved by the invention, the following technical scheme is provided:

the invention provides a lifting type display rack with a display screen adjusting function, which comprises a frame of the display rack and a touch display screen arranged on the frame, wherein an adjusting device for adjusting the angle of the touch display screen is arranged between the frame and the touch display screen; the adjusting device comprises a mounting seat and an assembly adjusting seat capable of fixing the touch display screen, the mounting seat is movably connected with the assembly adjusting seat through a folding arm, and an adjusting mechanism for adjusting the angle of the assembly adjusting seat is arranged between the mounting seat and the assembly adjusting seat; the assembly adjusting seat is provided with an installation groove, a turntable capable of driving the touch display screen to rotate is arranged in the installation groove, and the assembly adjusting seat is provided with a limiting mechanism for locking the rotation angle of the turntable; a lifting self-locking mechanism fixed on the frame is arranged between one side of the mounting seat, which is far away from the assembly adjusting seat, and the frame, and the lifting self-locking mechanism can drive the adjusting device to lift on the frame; its adjustment mechanism and lift self-locking mechanism mutually support, can become diversified with touch display screen's autonomic regulation, and self-locking function has stabilized its structure, prevents that the device from leading to touch display screen to drop because of bearing overweight damage.

Furthermore, the frame is of a square structure, a bottom plate and a side plate are arranged on one side of the frame of the square structure, the bottom plate and the side plate form a containing box after being enclosed, and one end of the lifting self-locking mechanism is arranged in the containing box and is supported on one side of the frame through the containing box; the containing box is used for arranging a driving device of the lifting self-locking mechanism and can fix the driving device.

Furthermore, the adjusting mechanism is fixed on the lifting self-locking mechanism, and a touch display screen is arranged on an assembly adjusting seat at one side of the adjusting mechanism, which is far away from the lifting self-locking mechanism; through the cooperation of the lifting self-locking mechanism and the adjusting mechanism, the touch display screen is more convenient to install.

Furthermore, the adjusting mechanism comprises a first screw rod and a rotary supporting seat which is used for being matched with the first screw rod to rotate, the rotary supporting seat is fixed on the mounting seat, and two ends of the first screw rod can be respectively and rotatably mounted in the rotary supporting seat; a first guide groove and a first sliding part which can be slidably arranged in the first guide groove are arranged on the mounting seat along the length direction of the first lead screw, and the first sliding part is sleeved on the first lead screw and forms a first lead screw nut kinematic pair with the first lead screw; the assembling and adjusting seat is connected with the first sliding part through a transmission rod, an installing support lug is arranged on one side, away from the installing seat, of the first sliding part, one end of the transmission rod is hinged to the installing support lug, and one end, away from the first sliding part, of the transmission rod is fixedly connected with the assembling and adjusting seat; the first sliding part slides in the first guide groove through the rotation of the first screw rod, and can drive the assembly adjusting seat to move along the folding direction of the folding arm through the transmission rod so as to adjust the angle of the assembly adjusting seat; the screw rod nut structure is designed to increase the stability of the adjusting mechanism, so that the adjusting mechanism is not easy to damage, and the adjusting mechanism is simple in structure and convenient and fast to install.

Furthermore, the limiting mechanism comprises a bolt with a first elastic element and positioning holes uniformly distributed on the periphery of the rotary table, a bolt hole communicated with the mounting groove is formed in the periphery of the assembly adjusting seat, the bolt hole can be enabled to be opposite to one positioning hole through the rotation of the rotary table, the bolt is mounted on the bolt hole and inserted into the corresponding positioning hole so as to lock the position of the rotary table in the mounting groove; the structure can effectively determine the required limiting angle, and the design greatly reduces the probability of internal fault.

Furthermore, the first elastic element is a tension spring arranged between the bolt hole and the bolt, one end of the tension spring abuts against a bolt cap of the bolt, and the other end of the tension spring abuts against one end, close to the rotary table, of the bolt hole, so that the bolt separated from the positioning hole can be reset; when the bolt is pulled out, the rotary disc is rotated and adjusted to a required angle, and the rotary disc can be automatically reset to limit by releasing the bolt.

Furthermore, the hole wall of each positioning hole is provided with an internal thread structure capable of being in threaded fit with a bolt, the first elastic element is a pressure spring arranged between the bolt hole and the bolt, and the pressure spring can eject the bolt separated from the positioning hole; after the bolt and the bolt hole are separated from the limit of the threads, the pressure spring applies pressure to the bolt and ejects the bolt, so that the bolt is more convenient to disassemble and can be rapidly replaced.

Further, the lifting self-locking mechanism comprises a sliding guide device and a second sliding part capable of lifting along the sliding guide device, one side, close to the installation seat, of the second sliding part is fixedly connected with the installation seat, one side, far away from the installation seat, of the second sliding part is installed in a second guide groove vertically formed in the sliding guide device, and the second sliding part is lifted in the sliding guide device through the second guide groove; the second sliding part is provided with a mounting hole, a second screw rod is arranged in the mounting hole, two ends of the second screw rod are rotatably mounted at two ends of the sliding guide device, and the second sliding part is sleeved on the second screw rod and forms a second screw rod nut kinematic pair with the second screw rod; lock tongues are arranged on two sides of the second sliding part, a fixed plate and a movable plate which extend vertically are arranged on two sides of the sliding guide device, the lock tongues are simultaneously supported on corresponding side edges of the fixed plate and the movable plate, and lock grooves matched with the lock tongues are formed in the side edges of the fixed plate and the movable plate, which are close to the lock tongues; the movable plate is provided with a guide strip-shaped hole, the fixed plate is provided with a guide sliding block matched with the guide strip-shaped hole, the guide sliding block is butted with the guide strip-shaped hole, and the movable plate is slidably arranged on one side of the fixed plate; a motor is arranged at one end of the second screw rod, and a motor shaft of the motor is fixedly connected with the second screw rod and can drive the second screw rod to synchronously rotate with the second screw rod; the bottom of the sliding guide device is provided with an air cylinder, and a piston rod of the air cylinder is connected with the movable plate so as to drive the movable plate to slide relative to the fixed plate; the structure of the self-locking mechanism is the same as that of the adjusting mechanism, the self-locking mechanism is also arranged to be matched with a screw nut, when the self-locking mechanism is lifted stably, the phenomenon that the self-locking mechanism cannot operate due to faults caused by the influence of other factors is reduced, and the self-locking function is adopted to slide in the guide groove structure.

Furthermore, a second elastic element is arranged on the bolt and can reset the bolt to extend into the lock groove; the second elastic element is a torsion spring; the spring bolt resets through torsion spring and stretches into the locked groove, and when each locked groove misplaced, the spring bolt then supported on each outer fringe of fly leaf and fixed plate, can't get into in the locked groove.

Furthermore, two sides of the second screw rod are provided with guide circular pipes, the guide circular pipes are arranged in guide holes formed in the second sliding part, and two ends of each guide circular pipe are fixedly connected with two ends of the sliding guide device respectively; the pipe that leads is used for further leading the second sliding part, and more enough stabilizes the second sliding part on the pipe that leads, makes its angle can not take place the skew, is that the structure is more firm.

Compared with the prior art, the invention has the following beneficial effects: over-and-under type exhibition frame with adjust display screen function, its structural design is simple, it is quick during loading and unloading, it is convenient, and the content that makes the display screen broadcast can not influence the broadcast effect because of the factor of reflection of light, better will need the broadcast information to promote, and this structure is compared other structures and is firm durable, and the controllability of broadcast angle has improved embodies the visual effect of watching on the whole, adaptation broadcast content that can be better, prevented effectively to produce harmful effects to the broadcast effect because of display screen angle problem, and descend to a take the altitude when the display screen, the touch display screen of installation still can interact with the viewer, further promote viewer's viewing effect.

Drawings

Fig. 1 is a schematic perspective view of a lifting display rack with a display screen adjusting function according to the present invention;

FIG. 2 is an installation diagram of the adjusting mechanism and the lifting self-locking mechanism in FIG. 1;

FIG. 3 is a schematic structural view of an adjusting mechanism in the embodiment;

FIG. 4 is an enlarged view of the first slide member and the first guide groove in the embodiment;

FIG. 5 is a schematic view of the internal structure of the assembly adjustment seat in the embodiment;

FIG. 6 is an enlarged view of the stopper mechanism in the embodiment;

FIG. 7 is a schematic structural view of the lifting mechanism in the embodiment;

fig. 8 is a schematic structural view of a second slide member and a second guide groove in the embodiment.

Detailed Description

The present invention will be further described with reference to the following examples and the accompanying drawings.

Referring to fig. 1 and 2, the invention provides a lifting display rack with a display screen adjusting function, which comprises a frame 4 of the display rack and a touch display screen 5 installed on the frame 4, wherein an adjusting device is arranged between the frame 4 and the touch display screen 5, the adjusting device comprises an installation seat 1 and an assembly adjusting seat 2, a hook 21b is arranged on the assembly adjusting seat 2, and the touch display screen 5 is installed on the assembly adjusting seat 2 through the hook 21 b; the mounting seat 1 and the assembly adjusting seat 2 are movably connected through a folding arm 16, the assembly adjusting seat 2 can adjust the angle in the folding direction of the folding arm 16, and a hinge shaft is arranged in the middle of the folding arm 16; an adjusting mechanism for adjusting the angle of the assembling adjusting seat 2 is arranged between the mounting seat 1 and the assembling adjusting seat 2; the assembly adjusting seat 2 is provided with an installation groove 22, a rotary table 21 is arranged in the installation groove 22, the rotary table 21 can drive the touch display screen 5 to rotate, and a limiting mechanism used for locking the rotation angle of the rotary table 21 is arranged in the assembly adjusting seat 2; a lifting self-locking mechanism fixed on the frame 4 is arranged between one side of the mounting seat 1, which is far away from the assembly adjusting seat 2, and the frame 4, and the lifting self-locking mechanism can drive the adjusting device to lift along the width direction of the frame 4; the adjusting mechanism is fixed on the lifting self-locking mechanism, and a touch display screen 5 is arranged on the assembling adjusting seat 2 on one side, far away from the lifting self-locking mechanism, of the adjusting mechanism.

Referring to fig. 3 and 4, the adjusting mechanism includes two rotation supporting seats 13 for mounting a first lead screw 12, two ends of the first lead screw 12 are respectively fixed in the rotation supporting seats 13, the first lead screw 12 can rotate in the rotation supporting seats 13, the adjusting mechanism further includes a first guiding groove 11a and a first sliding part 11 which are mutually matched, the first sliding part 11 is mounted in the first guiding groove 11a and is sleeved on the first lead screw 12 to be mutually matched with a thread structure on the first lead screw 12, and when the first lead screw 12 rotates, the first sliding part 11 can slide in the first guiding groove 11a to a thread rotation direction on the first lead screw 12 under the mutual matching action of the thread structures; the first sliding part 11 is provided with an installation support lug 11b, the installation support lug 11b is movably connected with a transmission rod 14 through a hinge shaft, the other end of the transmission rod 14 is rigidly connected with the assembly adjusting seat 2, the transmission rod 14 is extended or pulled back to the assembly adjusting seat 2 through the sliding of the first sliding part 11 in the first guide groove 11a, and the assembly adjusting seat 2 is fixed at a corresponding angle for adjusting the angle of the assembly adjusting seat 2.

An internal thread structure matched with the thread structure on the first screw rod 12 can be arranged in the first sliding part 11, a first screw rod nut kinematic pair is formed under the matching of the internal thread structure and the external thread structure of the first screw rod 12, the first screw rod 12 is rotated to enable the first sliding part 11 to do linear reciprocating motion in the first guide groove 11a along the length direction of the first screw rod 12, and the transmission rod 14 can be driven to support the assembly adjusting seat 2 at different positions;

preferably, an annular rotation groove may also be disposed inside the first sliding member 11, the rotation grooves are matched to form a circulation channel, a ball matched with the thread structure on the first screw 12 is disposed in the rotation groove, the ball rolls in the channel in a circulating manner, two ends of the first sliding member 11 are sealed to prevent the ball from falling out of the first sliding member 11, when the first screw 12 rotates as a driving body, the first sliding member 11 will be converted into a linear motion along a corresponding lead according to a rotation angle of the first screw 12, so as to implement a linear reciprocating motion in the first guide groove 11a along a length direction of the first screw 12.

Referring to fig. 5 and 6, preferably, the assembly adjustment seat 2 has an installation groove 22 inside, a rotating disc 21 capable of rotating in the installation groove 22 is installed in the installation groove 22, and is used for further adjusting the angle after the touch display screen 5 is installed, a limiting mechanism is further disposed in the installation groove 22, the limiting mechanism includes a positioning hole 21a formed in the rotating disc 21, the positioning hole 21a is arranged on the periphery of the rotating disc 21, a bolt hole 24 communicated with the installation groove 22 is formed in the periphery of the assembly adjustment seat 2, a bolt 23 is installed on the bolt hole 24 as a positioning bolt of the rotating disc 21, and when the bolt 23 is inserted into the positioning hole 21a, the rotating disc 21 can be locked in the installation groove 22.

Preferably, the bolt 23 is fixed in the plug hole 24 by a first elastic element 25, the first elastic element 25 is preferably a tension spring, one end of the tension spring abuts on the nut of the bolt 23, and the other end abuts in the plug hole 24; when the touch display screen adjusting device is used, the bolt 23 is pulled out, the bolt hole 24 is in butt joint with the positioning hole 21a through rotation of the rotary disc 21, the screw rod on the bolt 23 is reset and inserted into the positioning hole 21a to lock the rotary disc 21 under the action of the elastic component when the screw rod 23 is released, the bolt 23 is arranged into a plugging structure, and when the angle of the touch display screen 5 is adjusted, the touch display screen 5 can be adjusted to a preset angle more conveniently.

The bolt 23 and the positioning hole 21a may also be configured to be in threaded fit, the first elastic element 25 is a pressure spring, one end of the pressure spring abuts against a nut of the bolt 23, and the other end of the pressure spring abuts against the plug pin hole 24, when the bolt 23 rotates to be separated from the positioning hole 21a, the pressure spring ejects the bolt 23 out of the plug pin hole 24, so that the disassembly is more convenient; the design of the thread fit ensures that the bolt 23 is more stably connected with the positioning hole 21a, and the safety is improved.

Referring to fig. 3, a driving part 15 is arranged at one end of the first lead screw 12, the driving part 15 can drive the first lead screw 12 to rotate in the rotary supporting seat 13, so that the first sliding part 11 is matched with the first lead screw 12 to slide in the first guiding groove 11a, and the driving transmission rod 14 supports the assembly adjusting seat 2 to adjust a corresponding angle; the driving part 15 is preferably a rotating handle, and when the first screw rod 12 needs to be driven, the handle is only required to be manually rotated for adjustment; may also be arranged to be electrically driven.

The rotary table 21 is provided with hooks 21b for fixing the touch display screen 5, the number of the hooks 21b is preferably 3, the hooks are distributed on the rotary table 21 in an equilateral triangle structure, the touch display screen 5 can be better stabilized by using the triangle structure, the touch display screen 5 cannot swing after being installed, the touch display screen 5 is prevented from falling or deviating, and the assembly safety is ensured; preferably, the hook 21b is an L-shaped structure, and the L-shaped structure is configured to match with a mounting hole provided at the back of the touch display screen 5.

Referring to fig. 7 and 8, one side of the mounting base 1 away from the adjusting mechanism is provided with a lifting self-locking mechanism capable of being fixed on the display rack, the lifting self-locking mechanism can lift the touch display screen 5 on the display rack, and the lifting self-locking mechanism has a self-locking structure, so that the touch display screen 5 is effectively prevented from falling due to the fact that the lifting mechanism bears overweight and is out of control.

The lifting self-locking mechanism comprises a sliding guide device 3 and a second sliding part 33 capable of lifting along the sliding guide device 3, one side, close to the mounting seat 1, of the second sliding part 33 is fixedly connected with one side, far away from the adjusting mechanism, of the mounting seat 1, one side, far away from the mounting seat 1, of the second sliding part is installed in a second guide groove 33c vertically arranged in the sliding guide device 3, and the second sliding part 33 can slide up and down in the sliding guide device 3 through the second guide groove 33c to complete lifting.

The second sliding part 33 is provided with a mounting hole, a second screw rod 31 is arranged in the mounting hole, and two ends of the second screw rod 31 are rotatably arranged at two ends of the sliding guide device 3; preferably, two sides of the second screw rod 31 are provided with guide circular pipes 32, and the guide circular pipes 32 are installed on guide holes formed on the second sliding member 33, are fixedly connected with two ends of the sliding guide device 3, and are used for supporting the second sliding member 33, preventing the second sliding member 33 from deviating from the sliding direction due to the influence of gravity during sliding, and further performing sliding guide; the second screw nut kinematic pair composed of the second sliding member 33 and the second screw 31 has the same structure as the first screw nut kinematic pair composed of the first sliding member 11 and the first screw 12 in the adjusting mechanism, and therefore, not described in detail, the second screw 31 can drive the second sliding member to move up and down in the sliding guide device 3 along the length direction of the second screw 31 by rotating; preferably, one end of the second screw rod 31 is provided with a motor 37, and an output shaft of the motor 37 is fixedly connected with one end of the second screw rod 31, so as to drive the second screw rod 31 to rotate.

The utility model discloses a lock bolt, including first sliding part 33, second sliding part 33, fixed plate 34, spring bolt 33a and fixed plate 34, the spring bolt 33a all installs the spring bolt 33a that can rotate in the both sides of second sliding part 33, the both sides of slip guiding device 3 are provided with vertical extension's fixed plate 34, the lateral margin of spring bolt 33a and fixed plate 34 corresponds each other, set up the locked groove with cooperation spring bolt 33a on the fixed plate 34 is close to one side outer fringe of spring bolt 33a, the locked groove is one-way groove structure, in spring bolt 33a stretched into the locked groove, make second sliding part 33 only can the upwards slip, and unable lapse.

Preferably, a movable plate 35 is disposed on the outer side of the fixed plate 34, an air cylinder 36 is connected to one end of the movable plate 35, the air cylinder is fixed to the bottom of the sliding guide device 3, a guide slider 34a is disposed on the fixed plate 34, a guide strip-shaped hole 35a capable of being matched with the guide slider 34a is formed in the movable plate 35, and the guide slider 34a is installed in the guide strip-shaped hole 35a in a butt joint manner; the movable plate 35 can move up and down on the outer side of the fixed plate 34 by the driving of the cylinder and the guiding of the guiding strip-shaped hole 35a, a locking groove with the same structure as the fixed plate 34 is formed in the outer edge of one side of the movable plate 35 close to the lock tongue 33a, when the cylinder 36 drives the movable plate 35 to move and stagger the locking groove with the locking groove in the fixed plate 34 one by one, the locking groove in the movable plate 35 corresponds to the outer edge of the fixed plate 34, the locking groove in the fixed plate 34 corresponds to the outer edge of the movable plate 35, when the second sliding part 33 slides, the lock tongue 33a is always supported on the outer edge of the fixed plate 34 or the movable plate 35 and cannot enter the locking groove, and then the second sliding part can freely lift up and.

The latch 33a is provided with a second elastic element 33b, and is mounted on both sides of the second sliding part 33 in a hinged manner, the second elastic element 33b is preferably a torsion spring, one end of the torsion spring is connected with the second sliding part 33, and the other end of the torsion spring is connected with the latch 33a, when the locking grooves of the fixed plate 34 and the movable plate 35 correspond to each other, the latch 33a can automatically extend into the locking groove under the action of the torsion spring to lock the second sliding part 33.

The frame 4 is of a square structure, a bottom plate and a side plate are arranged at the bottom of one side of the frame 4 of the square structure, a containing box is formed after the bottom plate and the side plate are enclosed, and a motor 37 of the lifting self-locking mechanism is installed in the containing box and is rotatably connected with the second screw rod 31 through the top of the containing box to further support the lifting self-locking mechanism.

Reference is made above in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described above with reference to the drawings are exemplary and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.

Claims

1. The utility model provides a over-and-under type exhibition frame with adjust display screen function, includes frame (4) of exhibition frame and touch display screen (5) of installing on frame (4), its characterized in that: an adjusting device for adjusting the angle of the touch display screen (5) is arranged between the frame (4) and the touch display screen (5); the adjusting device comprises a mounting seat (1) and an assembly adjusting seat (2) capable of fixing the touch display screen (5), the mounting seat (1) is movably connected with the assembly adjusting seat (2) through a folding arm (16), and an adjusting mechanism for adjusting the angle of the assembly adjusting seat (2) is arranged between the mounting seat (1) and the assembly adjusting seat (2); the assembly adjusting seat (2) is provided with an installation groove (22), a turntable (21) capable of driving the touch display screen (5) to rotate is arranged in the installation groove (22), and the assembly adjusting seat (2) is provided with a limiting mechanism used for locking the rotation angle of the turntable (21); a lifting self-locking mechanism fixed on the frame (4) is arranged between one side, far away from the assembly adjusting seat (2), of the mounting seat (1) and the frame (4), and the lifting self-locking mechanism can drive the adjusting device to lift on the frame (4).

2. The lifting display rack with the function of adjusting the display screen according to claim 1, wherein: the lifting self-locking mechanism is characterized in that the frame (4) is of a square structure, a bottom plate and a side plate are arranged on one side of the frame (4) of the square structure, the bottom plate and the side plate are enclosed to form a containing box, one end of the lifting self-locking mechanism is installed in the containing box, and the lifting self-locking mechanism is supported on one side of the frame (4) through the containing box.

3. The lifting display rack with the function of adjusting the display screen according to claim 2, characterized in that: the adjusting mechanism is fixed on the lifting self-locking mechanism, and a touch display screen (5) is arranged on the assembling adjusting seat (2) on one side of the adjusting mechanism, which is far away from the lifting self-locking mechanism.

4. The lifting display rack with the function of adjusting the display screen according to claim 1, wherein: the adjusting mechanism comprises a first screw rod (12) and a rotating support seat (13) which is used for being matched with the first screw rod (12) to rotate, the rotating support seat (13) is fixed on the mounting seat (1), and two ends of the first screw rod (12) can be respectively and rotatably mounted in the rotating support seat (13); a first guide groove (11a) and a first sliding part (11) which can be slidably installed in the first guide groove (11a) are arranged on the installation base (1) along the length direction of the first screw rod (12), and the first sliding part (11) is sleeved on the first screw rod (12) and forms a first screw rod nut kinematic pair together with the first screw rod (12); the assembling and adjusting seat (2) is connected with the first sliding part (11) through a transmission rod (14), an installing support lug (31) is arranged on one side, away from the installing seat (1), of the first sliding part (11), one end of the transmission rod (14) is hinged to the installing support lug (31), and one end, away from the first sliding part (11), of the transmission rod (14) is fixedly connected with the assembling and adjusting seat (2); the first sliding part (11) slides in the first guide groove (11a) through the rotation of the first screw rod (12), and the assembly adjusting seat (2) can be driven to move along the folding direction of the folding arm (16) through the transmission rod (14) so as to adjust the angle of the assembly adjusting seat (2).

5. The lifting display rack with the function of adjusting the display screen according to claim 1, wherein: the limiting mechanism comprises a bolt (23) with a first elastic element (25) and positioning holes (21a) uniformly distributed on the periphery of the rotary disc (21), a bolt hole (24) communicated with the mounting groove (22) is formed in the periphery of the assembly adjusting seat (2), the bolt hole (24) can be enabled to be opposite to one positioning hole (21a) through the rotation of the rotary disc (21), the bolt (23) is mounted on the bolt hole (24) and inserted into the corresponding positioning hole (21a) so as to lock the position of the rotary disc (21) in the mounting groove (22).

6. The elevating display rack with display screen adjusting function of claim 5, wherein: the first elastic element (25) is provided with a tension spring arranged between the bolt hole (24) and the bolt (23), one end of the tension spring is abutted against a bolt cap of the bolt (23), and the other end of the tension spring is abutted against one end of the bolt hole close to the rotary disc (21), so that the bolt (23) separated from the positioning hole (21a) can be reset.

7. The elevating display rack with display screen adjusting function of claim 5, wherein: the hole wall of each positioning hole (21a) is provided with an internal thread structure capable of being in threaded fit with the bolt (23), the first elastic element (25) is provided with a pressure spring arranged between the bolt pin hole (24) and the bolt (23), and the pressure spring can eject the bolt (23) separated from the positioning hole (21 a).

8. The lifting display rack with the function of adjusting the display screen according to claim 1, wherein: the lifting self-locking mechanism comprises a sliding guide device (3) and a second sliding part (33) capable of lifting along the sliding guide device (3), one side, close to the mounting seat (1), of the second sliding part (33) is fixedly connected with the mounting seat (1), one side, far away from the mounting seat (1), of the second sliding part (33) is installed in a second guide groove (33c) vertically formed in the sliding guide device (3), and the second sliding part (33) lifts in the sliding guide device (3) through the second guide groove (33 c); the second sliding part (33) is provided with a mounting hole, a second screw rod (31) is arranged in the mounting hole, two ends of the second screw rod (31) are rotatably arranged at two ends of the sliding guide device (3), and the second sliding part (33) is sleeved on the second screw rod (31) and forms a second screw rod nut kinematic pair with the second screw rod (31); lock tongues (33a) are mounted on two sides of the second sliding part (33), a fixed plate (34) and a movable plate (35) which extend vertically are arranged on two sides of the sliding guide device (3), the lock tongues (33a) are supported on corresponding side edges of the fixed plate (34) and the movable plate (34), and lock grooves matched with the lock tongues (33a) are formed in the side edges, close to the lock tongues (33a), of the fixed plate (34) and the movable plate (34); a guide strip-shaped hole (35a) is formed in the movable plate (35), a guide sliding block (34a) matched with the guide strip-shaped hole (35a) is arranged on the fixed plate (34), the guide sliding block (34) is in butt joint with the guide strip-shaped hole (35a), and the movable plate (35) is slidably mounted on one side of the fixed plate (34); a motor (37) is mounted at one end of the second screw rod (31), and a motor shaft of the motor (37) is fixedly connected with the second screw rod (31) and can drive the second screw rod (31) to synchronously rotate with the second screw rod; the bottom of the sliding guide device (3) is provided with an air cylinder (36), and a piston rod of the air cylinder (36) is connected with the movable plate (35) so as to drive the movable plate (35) to slide relative to the fixed plate (34).

9. The elevating display rack with display screen adjusting function of claim 8, wherein: the lock tongue (33a) is provided with a second elastic element (33b), and the second elastic element (33b) can reset the lock tongue (33a) to extend into the lock groove; the second elastic element (33b) is a torsion spring.

10. The elevating display rack with display screen adjusting function of claim 8, wherein: and guide circular tubes (32) are arranged on two sides of the second screw rod (31), the guide circular tubes (32) are arranged in guide holes formed in the second sliding component (33), and two ends of each guide circular tube (32) are fixedly connected with two ends of the sliding guide device (3) respectively.