CN114941770B

CN114941770B - Computer software demonstration device

Info

Publication number: CN114941770B
Application number: CN202210519814.0A
Authority: CN
Inventors: 王红梅; 王舜睿
Original assignee: Shanxi Institute of Technology
Current assignee: Shanxi Institute of Technology
Priority date: 2022-05-12
Filing date: 2022-05-12
Publication date: 2023-08-18
Anticipated expiration: 2042-05-12
Also published as: CN114941770A

Abstract

The application belongs to the technical field of demonstration equipment, in particular to a computer software demonstration device which comprises a display screen, a support and a computer software demonstration device, wherein the display screen is used for demonstrating computer software, and the support is detachably connected with the display screen; the support is divided into a top frame and a plate frame, the bottoms of the top frame and the plate frame are fixedly connected with sliding rods through guide rods, the length of each sliding rod is larger than that of the display screen, the top of the plate frame is fixedly connected with a support bracket, and the top of the top frame is fixedly connected with a connecting rod; a box body and a guide mechanism; a lifting mechanism; when the limiting rod is built, the lifting mechanism driven by electricity is matched with the guide mechanism, so that the display screens of the component members of the spliced screen can be sequentially lifted and combined, and workers do not need to carry, butt joint and other works at high positions in the building and dismantling processes, so that the labor intensity of the workers is effectively reduced, and meanwhile, the potential safety hazard in the operation process is reduced.

Description

Computer software demonstration device

Technical Field

The application belongs to the technical field of demonstration equipment, and particularly relates to a computer software demonstration device.

Background

In the prior art and software exhibition activities, the exhibited computer software is often demonstrated in an exhibition hall through professionals, in order to enhance the watching convenience of the exhibited personnel and enhance the demonstration expression effect, software demonstration videos or pictures are often rebroadcast to a large screen by means of signal transmission, electric transmission and the like in the exhibition, on one hand, the base number of people can be effectively increased by screen conversion, on the other hand, the amplified picture can also more conveniently demonstrate the demonstration effect of the computer software,

in order to facilitate transportation and installation in the preparation process of the exhibition, most of the screens used for demonstration adopt spliced screens, in order to enhance the installation stability of the spliced screens and the expansion of the display area, a metal frame wall body is built on the ground to provide an installation field for the spliced screens, then the spliced display screen can be installed on the metal frame wall body to complete the installation of the spliced screens,

the wall body is built by using more metal frames in the whole installation process of the spliced screen, meanwhile, a great amount of labor cost is required for building the metal frame wall body, transporting and fixing the spliced screen one by one, the screen and the frame are required to climb up and climb down in the building process, the screen, the frame and other components are required to be transported upwards, and the screen and the frame are required to be transported downwards in the disassembly process after the exhibition is finished, so that the whole process is full of great potential safety hazards.

In view of the above, the present application provides a computer software demonstration device for solving the above technical problems.

Disclosure of Invention

In order to make up the defects of the prior art, solve the problem that a great deal of manpower is required to be consumed when a spliced screen is built in a exhibition, and meanwhile, a great potential safety hazard exists in the building process, the application provides a computer software demonstration device.

The technical scheme adopted for solving the technical problems is as follows: according to the application, the convenience of transportation of the device can be effectively enhanced under the action of the box body and the universal wheels at the bottom of the box body, and meanwhile, when the device is built, the display screen of the component members of the spliced screen can be sequentially lifted and combined by adopting the electrically driven lifting mechanism and the guide mechanism, so that the convenient building of the spliced screen is realized;

the application relates to a computer software demonstration device, which comprises

The display screen is used for demonstrating computer software and is a component of a spliced screen;

the bracket is detachably connected with the display screen;

the support is divided into a top frame and a plate frame, sliding rods are fixedly connected to the bottoms of the top frame and the plate frame through guide rods, the length of each sliding rod is larger than that of a display screen, a support bracket is fixedly connected to the top of the plate frame, a connecting rod is fixedly connected to the top of the top frame, and the sliding rods arranged on the upper support and the lower support are matched with the support brackets;

the box body is used for storing the display screen, and universal wheels are arranged at the bottom of the box body;

the guide mechanism is arranged in the box body and is matched with the sliding rod to guide the moving direction of the bracket;

the lifting mechanism is fixedly arranged on the inner side of the guide mechanism and is used for lifting the sliding rod upwards;

the limiting rod is hinged to one side of the box body and is an adjustable telescopic rod, and the end part of the limiting rod can be detachably connected with the connecting rod.

Preferably, the guide mechanism comprises

The first guide plates are symmetrically fixed at one end in the box body, are U-shaped and face the other end of the box body;

the second guide plates are symmetrically arranged on two sides of the box body, the second guide plates are Z-shaped, and a guide groove is formed in one side, close to the first guide plate, of each second guide plate; the design of opening is all opened at the guide way both ends, the guide way bottom is parallel and level with first deflector "U" shape chamber.

Preferably, the box is formed by splicing left and right parts in a sliding way, and the first guide plate and the second guide plate are respectively arranged on the two parts of the box which can slide relatively.

Preferably, the sliding groove is formed in the inner side of the box body, a sliding plate is fixedly connected to the opposite side of the second guide plate, the second guide plate is connected to the inner side of the sliding groove in a sliding mode through the sliding plate, and the width of the display screen is consistent with that of the box body.

Preferably, both ends of the sliding rod are of mortise and tenon structures, and the left and right adjacent two display screens can be spliced through the sliding rod.

Preferably, the lifting mechanism comprises

The conveyor is one of a belt conveyor, a plate conveyor and a chain conveyor, and is arranged on one side, close to each other, of the second guide plate;

the lifting plate is uniformly and fixedly connected to the conveyor moving member, the movement track of the lifting plate is partially overlapped with the guide groove, and the lifting plate is used for driving the sliding rod to move in the guide groove.

Preferably, the inside fixed mounting of second deflector has the bracing piece, the bracing piece is the telescopic link, bracing piece top fixedly connected with driven plate, under the initial state the driven plate is located guide way top opening part, still sliding connection has the cardboard on the bracing piece, the cardboard can overlap each other, cardboard and sliding rod one-to-one, cardboard and driven plate keep away from bracing piece one end and are "C" shape and "C" shape opening phase.

Preferably, the inner cavity of the support rod is provided with a telescopic bag, and the telescopic bag is provided with a unidirectional air inlet and a unidirectional air outlet respectively.

Preferably, one end of the box body, which is provided with the first guide plate, is fixedly connected with a spring rod.

Preferably, the bottom of the box body is connected with a locking knob in a threaded manner, and the locking knob is used for fixing two parts of the box body.

The beneficial effects of the application are as follows:

1. according to the computer software demonstration device, firstly, the convenience of transportation of the device can be effectively enhanced under the action of the box body and the universal wheels at the bottom of the box body, meanwhile, when the computer software demonstration device is built, the lifting mechanism driven by electricity is matched with the guide mechanism, so that the display screen of the component members of the spliced screen can be sequentially lifted and combined, and in the process of building and dismantling, workers do not need to carry, butt joint and other works at high positions, so that the labor intensity of the workers can be effectively reduced, and meanwhile, the potential safety hazard in the operation process is reduced.

2. According to the computer software demonstration device, through the design of the two ends of the sliding rod and the design of the sliding grooves, negative influences of the bracket, the sliding rod and the like on gaps of the spliced screens can be effectively reduced in butt joint of the spliced screens, and meanwhile, all mechanisms in the device can be effectively overlapped with each other as much as possible during disassembly and storage, so that the volume of the device is reduced, all the mechanisms are conveniently protected through the box body, and the applicability of the computer software demonstration device designed by the application is further enhanced

3. According to the computer software demonstration device, the support provided with the display screen can be effectively limited through the arrangement of the support rods, the stability of the spliced screen formed by combination is enhanced, and meanwhile, the control of the descending rate of the support rods is realized by utilizing the airflow rate of the telescopic bags, so that when the spliced screen is accidentally collapsed, the support effect can be given to each display screen, the falling rate of the display screen is reduced, and damage caused by collapse is further reduced.

Drawings

The application is further described below with reference to the accompanying drawings.

FIG. 1 is a perspective view of the present application after disassembly;

figure 2 is a perspective view of the application during deployment and construction;

figure 3 is a perspective view of the application after deployment and construction;

FIG. 4 is a perspective view of the present application after splicing;

FIG. 5 is a perspective view of a bracket;

FIG. 6 is an expanded view of the case;

FIG. 7 is a partial cross-sectional view of the support rod;

in the figure: 1. a display screen; 2. a bracket; 21. a top frame; 22. a plate frame; 23. a slide bar; 24. a support bracket; 25. a connecting rod; 3. a case; 31. a universal wheel; 32. a limit rod; 4. a first guide plate; 41. a second guide plate; 42. a guide groove; 43. a sliding groove; 5. a conveyor; 51. a lifting plate; 6. a support rod; 61. a driven plate; 62. a clamping plate; 63. a bellows; 7. a spring rod; 8. locking the knob.

Detailed Description

The application is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the application easy to understand.

As shown in fig. 1 to 7, the convenience of transportation of the device can be effectively enhanced under the action of the box body and the universal wheels at the bottom of the box body, meanwhile, when the device is built, the lifting mechanism driven by electricity is matched with the guide mechanism, so that the display screen of the component members of the spliced screen can be sequentially lifted and combined, and in the process of building and dismantling, workers do not need to carry, butt joint and other works at high positions, thereby effectively reducing the labor intensity of the workers and reducing the potential safety hazard in the operation process;

example 1

A computer software demonstration device comprises

The display screen 1 is used for demonstrating computer software, and the display screen 1 is a component of a spliced screen;

the bracket 2 is detachably connected with the display screen 1;

the method is characterized in that:

the support 2 is divided into a top frame 21 and a plate frame 22, the bottoms of the top frame 21 and the plate frame 22 are fixedly connected with a sliding rod 23 through guide rods, the length of the sliding rod 23 is longer than that of the display screen 1, the top of the plate frame 22 is fixedly connected with a support bracket 24, the top of the top frame 21 is fixedly connected with a connecting rod 25, and the sliding rods 23 arranged on the upper and lower adjacent two supports 2 are matched with the support bracket 24;

the box body 3 is used for storing the display screen 1, and universal wheels 31 are arranged at the bottom of the box body 3;

the guide mechanism is arranged in the box body 3 and is matched with the sliding rod 23 to guide the moving direction of the bracket 2;

the lifting mechanism is fixedly arranged on the inner side of the guide mechanism and is used for lifting the sliding rod 23 upwards;

the limiting rod 32 is hinged to one side of the box body 3, the limiting rod 32 is an adjustable telescopic rod, and the end part of the limiting rod 32 can be detachably connected with the connecting rod 25;

the guiding mechanism comprises

The first guide plates 4 are symmetrically fixed at one end in the box body 3, and the first guide plates 4 are U-shaped and the U-shaped openings face the other end of the box body 3;

the second guide plates 41 are symmetrically arranged on two sides of the box body 3, the second guide plates 41 are Z-shaped, and a guide groove 42 is formed in one side, close to the first guide plate 4, of each second guide plate 41; both ends of the guide groove 42 are provided with openings, and the bottom end of the guide groove 42 is level with the first guide plate 4"U' shaped cavity;

the lifting mechanism comprises

A conveyor 5, wherein the conveyor 5 is one of a belt conveyor, a plate conveyor and a chain conveyor, and the conveyor 5 is arranged on one side of the second guide plate 41, which is close to each other;

a lifting plate 51, wherein the lifting plate 51 is uniformly and fixedly connected to the moving member of the conveyor 5, the moving track of the lifting plate 51 is partially overlapped with the guide groove 42, the lifting plate 51 is used for driving the sliding rod 23 to move in the guide groove 42,

one end of the box body 3, provided with the first guide plate 4, is fixedly connected with a spring rod 7;

in order to facilitate transportation and installation in the preparation process of exhibition, most of the screens for demonstration use a spliced screen, in order to enhance the installation stability of the spliced screen and the expansion of the display area, in most cases, a metal frame wall body is built on the ground to provide an installation site for the spliced screen, then the spliced display screen 1 can be installed on the metal frame wall body, in the whole operation process, more metal frames are needed to be used for building the wall body, meanwhile, the construction of the metal frame wall body, the one-to-one transportation and the fixation of the spliced screen are all required to have a great deal of labor cost, in addition, in the construction process, great potential safety hazards exist due to climbing down, and in the disassembly process after the exhibition is also more troublesome,

when the computer software demonstration device designed by the application is built, firstly, the box body 3 is pushed to move the box body 3 to a designated position, at the moment, on one hand, the universal wheel 31 can be locked through a locking device carried on the universal wheel 31, on the other hand, the box body 3 can be fixed on the ground through a conventional fixing mode such as weight pressing and bolt fixing, at the moment, a lifting mechanism arranged on the second guide plate 41 is started through an external power supply, under the action of power, a conveyor 5 in the lifting mechanism operates, the conveyor 5 drives the lifting plate 51 to move when operating, the lifting plate 51 is pushed to move to a position matched with the guide groove 42, a sliding rod 23 positioned in the guide groove 42 is pushed to move in the guide groove 42, and when in actual design, a chain conveyor, a belt conveyor, a plate conveyor or other circulating conveying mechanisms can be flexibly selected according to the number and weight of screens required to be lifted, the lifting plate 51 is provided with enough strength support, so that the conveying effect of the lifting mechanism is ensured, meanwhile, the conveyor 5 can be driven by an external power source to ensure that the conveyor 5 has enough power, under the action of the lifting mechanism, the sliding rod 23 fixedly connected to the bracket 2 moves in the guide groove 42 formed in the second guide plate 41, and the top frame 21 in the bracket 2 and the connecting body of the display screen 1 are arranged at one end of the box body 3 closest to the lifting mechanism, so that during operation, the top frame 21 can be pushed to move upwards along the guide groove 42 at first, when the sliding rod 23 fixedly connected to the top frame 21 moves to the top end of the guide groove 42, at the moment, the lifting mechanism pushes the next plate frame 22 to move upwards under the action of the guide groove 42, the lower plate frame 22 is clamped with the sliding rod 23 on the upper top frame 21 through the supporting bracket 24 and then continuously moves upwards under the action of the lifting mechanism, the design of the spring rod 7 on the box body 3 can push the support 2 in the box body 3 to continuously move towards the second guide plate 41 at one end far away from the second guide plate 41, so as to lift and lift upwards one by one, meanwhile, in the upward movement process of the top frame 21, the connecting rod 25 fixedly connected with the top frame 21 realizes synchronous unfolding of the detachably connected limiting rod 32 through a lock catch, a buckle or other members, the selected limiting rod 32 is an adjustable telescopic rod, for example, the output end of the limiting rod 32 is limited by adopting a ratchet with adjustable depth, so that the limiting rod 32 can only be sequentially unfolded and cannot shrink, the spliced screen, the box body 3 and the limiting rod 32 can form a triangular structure in the building process of the spliced screen, the whole device can be kept stable,

meanwhile, when the support is disassembled, the limiting rod 32 is adjusted to adjust the depth of the limiting member such as a ratchet in the limiting rod 32, so that the limiting rod 32 has a contraction function, at the moment, under the action of gravity and the reverse rotation of the conveyor 5, the sliding rod 23 fixed on the support 2 at the lowest end moves downwards in the guide groove 42, the sliding rod 23 is separated from the support bracket 24 under the guide of the guide groove 42, the support 2 and the display screen 1 connected with the support 2 are sequentially arranged in the box body 3, and the support is convenient to transport and store,

according to the application, the convenience of transportation of the device can be effectively enhanced under the action of the box body 3 and the universal wheels 31 at the bottom of the box body 3, meanwhile, when the device is built, the electric driven lifting mechanism is matched with the guide mechanism, so that the component display screens 1 of the spliced screen can be sequentially lifted and combined, after all the display screens 1 in the single box body 3 are lifted and unfolded, the left side and the right side of the box body 3 are operated in the same way again, the spliced screen with the expected height and the expected width can be formed after the display screens are mutually spliced, the rapid installation of the spliced screen can be realized after the connection and the installation of circuits and signals are carried out in the later stage, and in the process of building and dismantling, the work of carrying, butt joint and the like by workers at high positions is not needed, so that the labor intensity of the workers can be effectively reduced, and the potential safety hazard in the operation process is reduced.

Example two

The difference between the first embodiment and the second embodiment is that the present embodiment further includes

The box body 3 is formed by splicing left and right parts in a sliding way, the first guide plate 4 and the second guide plate 41 are respectively arranged on the two parts of the box body 3 which can slide relatively,

the inner side of the box body 3 is provided with a sliding groove 43, one side opposite to the second guide plate 41 is fixedly connected with a sliding plate, the second guide plate 41 is connected in the sliding groove 43 in a sliding way through the sliding plate, the width of the display screen 1 is consistent with the width of the box body 3,

two ends of the sliding rod 23 are of mortise and tenon structures, the left and right adjacent display screens 1 can be spliced through the sliding rod 23,

the bottom of the box body 3 is connected with a locking knob 8 in a threaded manner, and the locking knob 8 is used for fixing two parts of the box body 3;

in the embodiment, the box body 3 is formed by sliding and splicing left and right parts, the two sides of the box body 3 can be designed to be in an open type, the locking knob 8 which is connected with the bottom of the box body 3 through threads is matched, when the bracket 2 provided with the display screen 1 is filled into the box body 3, the locking knob 8 is firstly opened, the two parts of the box body 3 are mutually pulled apart, the first guide plate 4 and the second guide plate 41 which are distributed and arranged on the two parts of the box body 3 are separated, at the moment, as the opposite sides of the first guide plate 4 and the second guide plate 41 are in an open type, the bracket 2 provided with the display screen 1 is respectively filled into the two parts of the box body 3 through the opening, the sliding rod 23 fixedly connected with the bracket 2 through the guide rod is in sliding connection with the guide groove 42 arranged on the inner cavity of the first guide plate 4 or the second guide plate 41, at the moment, the locking knob 8 is twisted and closed again, the free filling of the bracket 2 can be realized, the device can be conveniently adjusted according to the requirement, the convenience in use of the device is enhanced,

simultaneously, the inner side of the box body 3 is provided with the sliding groove 43, the second guide plates 41 are slidably arranged in the sliding groove 43 through the sliding plates, in the process of building, the second guide plates 41 are positioned at two sides of the support 2 and used for guiding the sliding rods 23, when the building is finished or the disassembly is finished, the second guide plates 41 can be pushed to the inner side of the box body 3 by enabling part of the guide grooves 42 to completely penetrate through the second guide plates 41, after the building is finished, the second guide plates 41 move to the inner side of the box body 3, the support and limit can be effectively provided for the spliced screen formed by the built display screens 1, in the process of butting the spliced display screens 1, the second guide plates 41 stored in the inner side of the box body 3 can not form an obstacle for the butting of the spliced display screens 1, simultaneously, in the butting process, the sliding rods 23 with lengths longer than the display screens 1 can not be blocked by mortise-tenon joint of the sliding rods 23, the butting of the spliced display screens 1 can be further realized, and gaps between the spliced display screens 1 can be reduced as far as possible,

according to the application, through the design of the two ends of the sliding rod 23 and the design of the sliding groove 43, in the butt joint of a plurality of groups of spliced screens, the negative influence of the bracket 2, the sliding rod 23 and the like on the gaps of the spliced screens can be effectively reduced, and simultaneously, all mechanisms in the device can be effectively overlapped with each other as much as possible during the disassembly and the storage, so that the volume of the device is reduced, and all the mechanisms are conveniently protected through the box body 3, thereby enhancing the applicability of the computer software demonstration device designed by the application;

example III

Compared with the first and second embodiments, the present embodiment further includes

The second guide plate 41 is internally and fixedly provided with a support rod 6, the support rod 6 is a telescopic rod, the top end of the support rod 6 is fixedly connected with a driven plate 61, the driven plate 61 is positioned at the top end opening of the guide groove 42 in the initial state, the support rod 6 is also slidably connected with a clamping plate 62, the clamping plates 62 can be mutually overlapped, the clamping plates 62 are in one-to-one correspondence with the sliding rods 23, the clamping plates 62 are opposite to the end of the driven plate 61 far away from the support rod 6 in a C shape and in a C shape opening,

the inner cavity of the supporting rod 6 is provided with a telescopic bag 63, and the telescopic bag 63 is respectively provided with a one-way air inlet and a one-way air outlet;

the application gradually lifts the bracket 2 provided with the display screen 1 upwards by arranging the support rods 6 and the driven plates 61 in the construction process of the spliced screen, when the top frame 21 moves upwards, the connecting rod 25 fixedly connected with the top frame 21 moves to be clamped with the driven plates 61 positioned at the top end opening of the guide groove 42, so that the top frame 21 pushes the driven plates 61 to synchronously move upwards in the lifting process, the upward moving driven plates 61 drive the support rods 6 to expand, simultaneously, as the diameters among the sections of the support rods 6 are different in expansion process, the bracket 2 can respectively correspond to the sections of different support rods 6 by controlling the lengths among the sections of the support rods 6, and the diameter change among the sections of the support rods 6 can be utilized by adjusting the sliding caliber of the clamping plates 62 in sliding connection with the support rods 6, the clamping plates 62 are respectively positioned at different positions, and are matched with the lengths of the sections of the supporting rods 6 to enable the clamping plates 62 to be in one-to-one correspondence with the sliding rods 23, after the bracket 2 provided with the display screen 1 is lifted, the second guide plate 41 is pushed to move towards the inside of the box body 3, the C-shaped ends of the clamping plates 62 are respectively clamped with the corresponding sliding rods 23, the clamping plates 62 are matched with the supporting rods 6 to limit the bracket 2, the bracket 2 can be effectively prevented from moving in the horizontal direction, meanwhile, the volume of the telescopic bag 63 in the supporting rods 6 is gradually increased when the supporting rods 6 are unfolded, the air outlet rate of the telescopic bag 63 can be limited by controlling the caliber of a one-way air outlet of the telescopic bag 63, the shrinkage rate of the telescopic rod can be controlled, the clamping plates 62 are matched with the bottom to support the sliding rods 23 and the driven plates 61 to be connected with the connecting rods 25 from the top, the stability of the split type screen is enhanced, and in the process of disassembling the split type screen, after the limit member on the limit lever 32 is opened, the second guide plate 41 is pulled to the outside, at this time, the descent of the bracket 2 can be realized under the action of gravity,

according to the application, the support rods 6 can effectively limit the support frame 2 provided with the display screen 1, so that the stability of the spliced screen formed by combination is enhanced, and meanwhile, the descending speed of the support rods 6 is controlled by utilizing the airflow speed of the telescopic bags 63, so that when the spliced screen is accidentally collapsed, each display screen 1 can be given a supporting effect, the falling speed of the display screen 1 is reduced, and damage caused by collapse is reduced.

The foregoing has shown and described the basic principles, principal features and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present application, and various changes and modifications may be made without departing from the spirit and scope of the application, which is defined in the appended claims. The scope of the application is defined by the appended claims and equivalents thereof.

Claims

1. A computer software demonstration device comprises

The display screen (1), the said display screen (1) is used for the demonstration of the computer software, the said display screen (1) is the component member of the spliced screen;

the bracket (2) is detachably connected with the display screen (1);

the method is characterized in that:

the support (2) is divided into a top frame (21) and a plate frame (22), sliding rods (23) are fixedly connected to the bottoms of the top frame (21) and the plate frame (22) through guide rods, the length of each sliding rod (23) is larger than that of the display screen (1), a support bracket (24) is fixedly connected to the top of the plate frame (22), a connecting rod (25) is fixedly connected to the top of the top frame (21), and the sliding rods (23) arranged on the upper support (2) and the lower support (24) are matched with each other;

the box body (3), the box body (3) is used for storing the display screen (1), and the universal wheel (31) is installed at the bottom of the box body (3);

the guide mechanism is arranged in the box body (3) and is matched with the sliding rod (23) to guide the moving direction of the bracket (2);

the lifting mechanism is fixedly arranged on the inner side of the guide mechanism and is used for lifting the sliding rod (23) upwards;

the limiting rod (32), limiting rod (32) articulates in box (3) one side, limiting rod (32) are adjustable telescopic link, limiting rod (32) tip can be connected with connecting rod (25) dismantlement.

2. A computer software demonstration device according to claim 1 wherein: the guiding mechanism comprises

The first guide plates (4) are symmetrically fixed at one end in the box body (3), and the first guide plates (4) are of U-shaped design, and the U-shaped openings face the other end of the box body (3);

the second guide plates (41) are symmetrically arranged on two sides of the box body (3), the second guide plates (41) are in Z-shaped design, and a guide groove (42) is formed in one side, close to the first guide plate (4), of the second guide plates (41); both ends of the guide groove (42) are open, and the bottom end of the guide groove (42) is flush with the U-shaped cavity of the first guide plate (4).

3. A computer software demonstration device according to claim 2 wherein: the box body (3) is formed by splicing left and right parts in a sliding mode, and the first guide plate (4) and the second guide plate (41) are respectively arranged on the two parts of the box body (3) which can slide relatively.

4. A computer software demonstration device according to claim 2 or claim 3 wherein: the sliding groove (43) is formed in the inner side of the box body (3), a sliding plate is fixedly connected to one side, opposite to the second guide plate (41), of the second guide plate (41) is connected to the inside of the sliding groove (43) in a sliding mode, and the width of the display screen (1) is consistent with that of the box body (3).

5. A computer software demonstration device according to claim 4 wherein: two ends of the sliding rod (23) are of mortise and tenon structures, and the left display screen and the right display screen (1) can be spliced through the sliding rod (23).

6. A computer software demonstration device according to claim 1 wherein: the lifting mechanism comprises

The conveyor (5) is one of a belt conveyor, a plate conveyor and a chain conveyor, and the conveyor (5) is arranged on one side, close to each other, of the second guide plate (41);

the lifting plate (51) is uniformly and fixedly connected to the moving member of the conveyor (5), the moving track of the lifting plate (51) is partially overlapped with the guide groove (42), and the lifting plate (51) is used for driving the sliding rod (23) to move in the guide groove (42).

7. A computer software demonstration device according to claim 2 wherein: the utility model discloses a novel structure of a movable support is characterized in that a supporting rod (6) is fixedly installed inside a second guide plate (41), the supporting rod (6) is a telescopic rod, a driven plate (61) is fixedly connected to the top end of the supporting rod (6), the driven plate (61) is located at the top end opening of a guide groove (42) in an initial state, clamping plates (62) are further connected to the supporting rod (6) in a sliding mode, the clamping plates (62) can be mutually overlapped, the clamping plates (62) are in one-to-one correspondence with sliding rods (23), and the clamping plates (62) are opposite to the driven plate (61) in a C shape and a C shape opening at one end far away from the supporting rod (6).

8. A computer software demonstration device according to claim 7 wherein: the inner cavity of the supporting rod (6) is provided with a telescopic bag (63), and the telescopic bag (63) is provided with a one-way air inlet and a one-way air outlet respectively.

9. A computer software demonstration device according to claim 3 wherein: one end of the first guide plate (4) is fixedly connected with a spring rod (7) in the box body (3).

10. A computer software demonstration device according to claim 9 wherein: the bottom of the box body (3) is connected with a locking knob (8) in a threaded manner, and the locking knob (8) is used for fixing two parts of the box body (3).