CN114694535B

CN114694535B - Lamp box for picture inserting

Info

Publication number: CN114694535B
Application number: CN202210331287.0A
Authority: CN
Inventors: 许静; 杜昱萱; 张如画
Original assignee: Changchun University
Current assignee: Changchun University
Priority date: 2022-03-30
Filing date: 2022-03-30
Publication date: 2023-09-08
Anticipated expiration: 2042-03-30
Also published as: CN114694535A

Abstract

The application discloses a lamp box for picture insertion, which comprises a box body and a display screen arranged on the box body, wherein a cavity is formed in the box body, a main shaft is arranged in the cavity, the main shaft extends to the outer side of the box body, the lamp box for picture insertion can provide a pull-type exercise structure through the design of a holding part, a load part and a mark I arranged on the box body, the load part can be utilized to load the holding part for pulling the shoulder exercise effect, the lamp box is especially suitable for bus stops, so that a worker can exercise for a certain pair by utilizing a small amount of time in the waiting process of buses, the problems of scapulohumeral periarthritis, cervical spondylosis and the like are effectively avoided, meanwhile, the design of the mark I is matched, the mark I can correspondingly mark fat change according to the number of times of the main shaft actions in the continuous action process of the holding part, and the whole interest of the device is increased through the fat mark design of dynamic form, so that the device is more effective to attract pedestrians.

Description

Lamp box for picture inserting

Technical Field

The application relates to the technical field of lamp boxes, in particular to a lamp box for picture inserting.

Background

The art is commonly referred to as an art in China. Commercial artwork which is used in domestic and foreign markets today comprises a plurality of forms such as publication map making, cartoon mascot, movie and television poster, game character setting, art scene design with built-in game, advertisement, cartoon, drawing book, greeting card, calendar, decorative picture, package and the like.

When the picture is used for advertising, the picture is often matched with a lamp box to be used, and is widely distributed on both sides of roads and streets, and public places such as theatres, exhibitions (sales) meetings, commercial downtown areas, stations, airports, wharfs, parks and the like, thereby meeting the requirement of 24-hour uninterrupted advertising and publicity, having the functions of characters and colors and being ubiquitous from product trademarks, names, physical photos, colors, enterprise intentions to cultures, economy, customs, beliefs and ideas. Through conception and unique originality, the consumers are tightly held and induced to purchase the ring so as to visually communicate heterogeneity, and the advertising purpose is achieved.

However, it is expected that the visible lamp box for the advertisement of the picture is basically provided with only the function of showing the advertisement, and the lamp box for the picture is proposed for this purpose, if the lamp box is insufficient in resource utilization due to the lack of the function and is considered from the view point of color and dynamic video only, the lamp box is attractive to consumers to some extent but is not effective in nature.

Disclosure of Invention

The present application is directed to a lamp box for picture-taking, which solves the above-mentioned problems of the prior art.

In order to achieve the above purpose, the present application provides the following technical solutions: the lamp box for the picture inserting comprises a box body and a display screen arranged on the box body, wherein a cavity is formed in the box body, a main shaft is arranged in the cavity, the main shaft extends to the outer side of the box body, and a holding part for holding by a hand and driving the main shaft to act is arranged at one end of the main shaft, which is positioned outside the box body;

the cavity is internally provided with a load component which is connected with the main shaft and provides resistance for the main shaft to act, and the display screen is provided with a first mark capable of marking fat change, and the first mark is used for switching the marks according to the times of the main shaft to act;

and be provided with the heat dissipation through-hole that runs through on the box lateral wall be provided with the combination formula convection current pipe that can convection current formula business turn over gas simultaneously in the heat dissipation through-hole to be provided with the initiative ventilation mechanism in the position that is close to combination formula convection current pipe in the box, initiative ventilation mechanism utilizes combination formula convection current pipe to carry out convection current ventilation heat transfer in the box.

Preferably, the main shaft is installed in the cavity by using a rotating shaft, the holding part is an extension shaft installed at the end part of the main shaft and extending reversely along the vertical main shaft, and an arc edge handle matched with the hand of a human body is arranged at the end part of the extension shaft.

Preferably, the load component comprises a torsion spring sleeved on the main shaft, and two ends of the torsion spring are respectively connected with the inner wall of the cavity and the main shaft;

and a monitoring mechanism connected with the main shaft is further arranged in the cavity, and the number of times of the main shaft is monitored when the main shaft acts.

Preferably, the monitoring mechanism comprises a hollow guide rail arranged on the inner wall of the cavity, a sliding seat is slidably arranged in the hollow guide rail, a traction rope is arranged on one side, close to the main shaft, of the sliding seat, a belt wheel is arranged on the main shaft, a through groove is formed in the hollow guide rail, the traction rope penetrates through the through groove and is fixedly wound on the belt wheel, and a spring is arranged between the bottom end of the sliding seat and the inner wall of the hollow guide rail;

the laser device is characterized by further comprising a laser receiver arranged on the inner wall of the cavity, wherein a through channel is formed in the side wall of one side, close to the laser receiver, of the hollow guide rail, a laser emitter is embedded in one side, close to the channel, of the sliding seat, and the sliding seat is opposite to the laser receiver in the longitudinal movement process.

Preferably, the combined convection duct comprises a main pipe arranged in the heat dissipation through hole, an auxiliary pipe with the outer diameter smaller than the inner diameter of the main pipe is arranged in the main pipe, and a connecting lug for positioning and connecting the auxiliary pipe is arranged between the main pipe and the auxiliary pipe;

the auxiliary pipe extends from the air outlet to the inside of the hollow seat and is communicated with the inside of the box body after passing through the passing hole;

the side wall of the hollow seat is provided with a penetrating mounting hole, the active ventilator is arranged in the mounting hole, so that air in the box body is pumped into the hollow seat and is discharged by the main pipe, and meanwhile, the space in the box body is pumped with air from the external connection by the auxiliary pipe so as to form convection with the air discharged in the main pipe.

Preferably, the active ventilation mechanism comprises an axial flow fan arranged in the mounting hole, and the axial flow fan is used for pumping air in the box body into the hollow seat;

and a sensing system is also arranged on the box body, and the sensing system is utilized to selectively seal the combined convection duct.

Preferably, the sensing system comprises a terminal controller, a humidity sensor, a standby power supply and an electric door, wherein the electric door is used for sealing and isolating a secondary pipe and a ventilation fan so as to provide a sealed environment for the inside of the box body;

when the humidity sensor detects that the air humidity is high, the terminal controller controls the electric door to seal, and when the box body is powered off, the standby power supply is utilized to control the electric door to be powered off.

Preferably, the active ventilation mechanism comprises a rotating shaft which is arranged in the mounting hole by using a mounting frame, fan blades are arranged on the rotating shaft, and the rotating shaft is used for exhausting air when driving the fan blades to rotate;

the box body is characterized by further comprising a linkage mechanism arranged between the rotating shaft and the main shaft, the main shaft is driven to act to suck when the main shaft acts, a temperature sensor is arranged in the box body, and a second mark capable of marking the change of heat in the box body is arranged on the display screen.

Preferably, the linkage mechanism comprises first chain wheels arranged on the rotating shafts, and first chains are arranged outside the first chain wheels so as to synchronize the rotating shafts;

and a second chain wheel is further arranged on any rotating shaft, a third chain wheel is arranged on the main shaft, and a second chain is arranged outside the second chain wheel and the third chain wheel so as to drive the rotating shaft to rotate when the main shaft rotates.

Preferably, the third diameter of the sprocket is substantially larger than the second diameter of the sprocket.

Compared with the prior art, the application has the beneficial effects that:

compared with the prior art, in the actual use process, the application can provide a pull type exercise structure by the design of the holding part, the load part and the sign I arranged on the box body, and can utilize the load part to load and pull the holding part, thereby providing the effect of shoulder exercise, being particularly suitable for bus stops, being convenient for office workers to perform certain pair exercise by using a few times in the waiting bus process, and effectively avoiding the problems of scapulohumeral periarthritis, cervical spondylosis and the like;

meanwhile, the design of the mark I is matched, in the process of setting the continuous action of the holding part, the mark I can correspondingly mark fat change according to the number of times of the main shaft action, and the whole interestingness of the device is improved through the design of the dynamic fat mark, so that pedestrians are more effectively attracted to stand.

Drawings

FIG. 1 is a schematic view of the overall structure of embodiment 1 of the present application;

FIG. 2 is a schematic view of the partial cross-section of FIG. 1 in accordance with the present application;

FIG. 3 is a schematic view of the structure of FIG. 2 in another orientation in accordance with the present application;

FIG. 4 is a schematic view of the structure of FIG. 3 in another orientation in accordance with the present application;

FIG. 5 is a schematic view of the partially exploded construction of FIG. 4 in accordance with the present application;

FIG. 6 is a schematic view of the partially exploded construction of FIG. 5 in accordance with the present application;

FIG. 7 is a schematic view of a hollow seat according to embodiment 1 of the present application;

FIG. 8 is an enlarged schematic view of the area A of the present application;

FIG. 9 is an enlarged schematic view of the structure of the area B of the present application;

FIG. 10 is a schematic diagram of a sensing system according to the present application;

FIG. 11 is a schematic overall structure of embodiment 2 of the present application;

FIG. 12 is a schematic view showing a partial cross section of a hollow seat in embodiment 2 of the present application;

FIG. 13 is an enlarged schematic view of the structure of the C area of the present application;

FIG. 14 is an enlarged schematic view of the structure of the area D of the present application;

FIG. 15 is an enlarged schematic view of the E area of the present application;

fig. 16 is an enlarged schematic view of the structure of the area F of the present application.

In the figure: 1. a case; 11. a display screen; 12. a cavity; 13. a main shaft; 14. a heat dissipation through hole; 2. a grip member; 21. an extension shaft; 22. an arc edge handle; 3. a load member; 31. a torsion spring; 32. a monitoring mechanism; 321. a hollow guide rail; 322. a slide; 323. a traction rope; 324. a belt wheel; 325. a through groove; 326. a spring; 327. a laser receiver; 328. a channel; 329. a laser emitter; 4. identifying one; 5. a combined convection duct; 51. a main pipe; 52. a secondary pipe; 53. a connection bump; 54. a hollow seat; 55. an air outlet; 56. a passing hole; 57. a mounting hole; 6. an active ventilation mechanism; 61. an axial flow fan; 62. a perception system; 621. a terminal controller; 622. a humidity sensor; 623. a standby power supply; 624. an electric door; 63. a rotation shaft; 64. a fan blade; 65. a linkage mechanism; 651. a sprocket I; 652. a first chain; 653. a second chain wheel; 654. a sprocket III; 655. a second chain; 66. a temperature sensor; 67-identification two; 68. a ratchet mechanism I; 681. a bearing shaft; 682. a ratchet mechanism II; 683. a sprocket IV; 684. a sprocket V; 685. and a third chain.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Example 1

Referring to fig. 1-10, the present application provides a technical solution: the lamp box for picture inserting comprises a box body 1 and a display screen 11 arranged on the box body 1, wherein a cavity 12 is formed in the box body 1, a main shaft 13 is arranged in the cavity 12, the main shaft 13 extends to the outer side of the box body 1, and a holding part 2 for holding by a hand and driving the main shaft 13 to act is arranged at one end of the main shaft 13 positioned outside the box body 1;

the load component 3 which is connected with the main shaft 13 and provides resistance for the main shaft 13 to act is arranged in the cavity 12, the display screen 11 is provided with the mark one 4 which can mark fat change, specifically, the mark one 4 is a sphere floating on the display screen 11, the center is marked with fat, the mark one 4 of the sphere is dispersed to be a small sphere to float when the main shaft 13 rotates once in 5S, if the main shaft 13 does not act in 5S, the mark one 4 is restored to the initial size, the mark is small sphere to float, the mark is switched by the action frequency of the main shaft 13, and the mark is converted by the calories of the main shaft 13 which consume for a single rotation, so that the standard value of the mark one small sphere can be calculated easily, the scheme protection content is not involved, and the scheme is not detailed;

and be provided with the heat dissipation through-hole 14 that runs through on box 1 lateral wall, be provided with the combination formula convection current pipe 5 that can convection current inlet and outlet simultaneously in the heat dissipation through-hole 14 to be provided with active ventilation mechanism 6 in the position that is close to combination formula convection current pipe 5 in box 1, active ventilation mechanism 6 utilizes combination formula convection current pipe 5 to carry out convection current ventilation heat transfer to the box 1.

As an embodiment, the main shaft 13 is installed in the cavity 12 by using a rotating shaft, the holding part 2 is an extension shaft 21 installed at the end of the main shaft 13 and extending reversely along the vertical main shaft 13, and an arc edge handle 22 matched with the hand of the human body is arranged at the end of the extension shaft 21, so that the hand can hold and pull the main shaft 13 to rotate.

As an implementation manner, the load part 3 comprises a torsion spring 31 sleeved on the main shaft 13, two ends of the torsion spring 31 are respectively connected with the inner wall of the cavity 12 and the main shaft 13, and when the main shaft 13 rotates, the torsion spring 31 contracts to provide resistance for the rotation of the main shaft 13 so as to play a role in exercise;

the monitoring mechanism 32 is further arranged in the cavity 12 and connected with the main shaft 13, the monitoring mechanism 32 comprises a hollow guide rail 321 arranged on the inner wall of the cavity 12, a sliding seat 322 is arranged in the hollow guide rail 321 in a sliding mode, a traction rope 323 is arranged on one side, close to the main shaft 13, of the sliding seat 322, a belt wheel 324 is arranged on the main shaft 13, a through groove 325 is formed in the hollow guide rail 321, the traction rope 323 passes through the through groove 325 and then is fixedly wound on the belt wheel 324, and a spring 326 is arranged between the bottom end of the sliding seat 322 and the inner wall of the hollow guide rail 321;

the laser receiver 327 is arranged on the inner wall of the cavity 12, a through channel 328 is arranged on the side wall of the hollow guide rail 321, which is close to the laser receiver 327, a laser emitter 329 is embedded on the side of the slide seat 322, which is close to the channel 328, and the laser emitter 329 is opposite to the laser receiver 327 in the longitudinal moving process of the slide seat 322, so that the laser emitter 329 and the laser receiver 327 can be used for receiving sequential laser signals in the single rotation process of the spindle 13, and at the moment, the first mark 4 is switched once;

it should be noted that, in the present application, the laser receiver 327 has two mounting positions for selection, one of which is mounted at the limit movement position of the laser emitter 329, and the laser receiver 327 receives a signal to mark a 4 switch at this time, but the design easily causes the laser receiver 327 not to trigger when the user cannot rotate the spindle 13 to the limit position after continuous exercise; secondly, the laser receiver 327 is installed at the specific middle section of the movement of the laser emitter 329, so when the laser receiver 327 receives signals at two sides, the first mark 4 can be switched, the problem that the laser receiver 327 is not triggered when the strength of a user is reduced is effectively avoided, but the problem that the first mark 4 is switched in transition is easily caused at the moment, namely, the quantity of fat marks is switched without reaching the corresponding movement quantity, and the installation position of the first mark can be flexibly selected when the laser receiver 327 is used.

As one embodiment, the combined convection duct 5 includes a main pipe 51 installed at the heat dissipation through hole 14, a sub pipe 52 having an outer diameter smaller than an inner diameter of the main pipe 51 is provided in the main pipe 51, and a connection bump 53 for positioning connection of the sub pipe 52 is provided between the main pipe 51 and the sub pipe 52;

the box body 1 comprises a box body 1, a main pipe 51, a hollow seat 54, a secondary pipe 52, a main pipe 51 and a main pipe 51, wherein the hollow seat 54 is arranged on the inner wall of the box body 1, one side of the hollow seat 54 is provided with an air outlet 55 communicated with the main pipe 51 so as to conduct the hollow seat 54 with the main pipe 51, the other side of the hollow seat 54 is provided with a passing hole 56, and the secondary pipe 52 extends from the air outlet 55 to the inside of the hollow seat 54 and is communicated with the inside of the box body 1 after passing through the passing hole 56;

the side wall of the hollow seat 54 is provided with a through mounting hole 57, the active ventilation mechanism 6 is arranged in the mounting hole 57 to pump the air in the box body 1 into the hollow seat 54 and discharge the air by using the main pipe 51, and meanwhile, the air in the inner space of the box body 1 is pumped from the outside by using the auxiliary pipe 52 to form convection with the air discharged from the main pipe 51;

the lamp box for the picture-inserting advertisement propaganda is basically closed in appearance, and even if the lamp box has the heat dissipation requirement, a heat dissipation channel is not formed in the lamp box for heat dissipation, so that the reason for selecting the lamp box is that the lamp sheet is made of high-temperature resistant materials, and meanwhile, the aluminum alloy or stainless steel outer frame is utilized for conducting heat, so that the lamp box can normally emit light for use in a high-temperature environment; on the other hand, if the heat dissipation channel is provided, although the heat dissipation capability can be provided for the lamp box, mosquitoes are easy to accumulate in the lamp box through the heat dissipation channel to influence the advertising effect, and even if the picture is food, bad advertising effect can be generated due to the accumulated mosquito corpse.

As an embodiment, the active ventilation mechanism 6 comprises an axial flow fan 61 arranged in the mounting hole 57, and the axial flow fan 61 is utilized to pump the air in the box 1 into the hollow seat 54, so as to ensure stable ventilation and heat dissipation;

the sensing system 62 is further arranged on the box body 1, the sensing system 62 comprises a terminal controller 621, a humidity sensor 622, a standby power supply 623 and an electric door 624, and the electric door 624 is used for sealing and isolating the auxiliary pipe 52 and the ventilation fan so as to provide a sealed environment for the interior of the box body 1;

when humidity sensor 622 detects that air humidity is big, terminal controller 621 control electrically operated gate 624 seals to effectively avoid ambient moisture to enter into the inside long-pending of box 1 and influence its circuit steady operation, and when box 1 outage, utilize stand-by power supply 623 to control electrically operated gate 624 outage, effectively avoid the mosquito that leads to because outage and can't provide the problem that the mosquito that causes to get into inside box 1.

Example 2

Referring to fig. 11-16, the present application provides a technical solution: the lamp box for picture inserting comprises a box body 1 and a display screen 11 arranged on the box body 1, wherein a cavity 12 is formed in the box body 1, a main shaft 13 is arranged in the cavity 12, the main shaft 13 extends to the outer side of the box body 1, and a holding part 2 for holding by a hand and driving the main shaft 13 to act is arranged at one end of the main shaft 13 positioned outside the box body 1;

As another embodiment, the active ventilation mechanism 6 includes a rotation shaft 63 mounted in the mounting hole 57 by using a mounting frame, a fan blade 64 is mounted on the rotation shaft 63, and air is drawn when the rotation shaft 63 drives the fan blade 64 to rotate;

the intelligent box further comprises a linkage mechanism 65 arranged between the rotating shaft 63 and the main shaft 13, the rotating shaft 63 is driven to act for sucking when the main shaft 13 acts, a temperature sensor 66 is arranged in the box body 1, a second mark 67 capable of marking the change of the internal heat of the box body 1 is arranged on the display screen 11, the temperature sensor 66 monitors the internal temperature of the box body 1 in real time, the second mark 67 is a floating sphere, the center marks the internal temperature of the lamp box 1 in real time, and when the internal temperature of the lamp box 1 is reduced by 0.1 degree, a small sphere floats upwards, and the accumulated and reduced temperature amount is accumulated above the small sphere.

Further, the linkage mechanism 65 includes first sprockets 651 mounted on the rotation shafts 63, and a first chain 652 is provided outside each of the first sprockets 651 to synchronize each of the rotation shafts 63;

a second sprocket 653 is further arranged on any rotating shaft 63, a third sprocket 654 is arranged on the main shaft 13, and a second chain 655 is arranged outside the second sprocket 653 and the third sprocket 654 so as to drive the rotating shaft 63 to rotate when the main shaft 13 rotates.

Through the above design, when the main shaft 13 rotates, the main shaft 13 is linked with the fan blades 64, in the process, the main shaft 13 rotates to play a role in exercise, the fan blades 64 can play a role in cooling the inside of the lamp box 1 at the same time, the cooling effect is visualized, and the interestingness and achievement sense (namely, the spirit satisfaction degree) are increased to attract eyeballs further.

Further, the diameter of the third sprocket 654 is far larger than that of the second sprocket 653, so as to accelerate the rotation of the fan blades 41 and 64 when the main shaft 13 rotates, thereby ensuring a stable ventilation effect.

Further, in order to ensure ventilation continuity and avoid damage to the connection between the rotating shaft 63 and the fan blade 64, a first ratchet mechanism 68 is embedded in the cavity 12, a bearing shaft 681 is arranged on the inner ring of the first ratchet mechanism 68, a second ratchet mechanism 682 is arranged on the bearing shaft 681, a fourth sprocket 683 is arranged on the outer ring of the second ratchet mechanism 682, a second chain 655 is connected with the third sprocket 654 and the fourth sprocket 683, a fifth sprocket 684 is also arranged on the bearing shaft 681, and a third chain 685 is arranged on the outer sides of the second sprocket 635 and the fifth sprocket 684, so that the bearing shaft 681 rotates unidirectionally, namely the fan blade 64 rotates unidirectionally continuously and stably, and the problem of wear damage to the connection is avoided.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the application, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a lamp house for inserting picture, includes box (1) and installs display screen (11) on box (1), its characterized in that: a cavity (12) is formed in the box body (1), a main shaft (13) is installed in the cavity (12), the main shaft (13) extends to the outer side of the box body (1), and a holding part (2) for holding by a hand and driving the main shaft (13) to act is installed at one end of the main shaft located outside the box body (1);

a load component (3) which is connected with the main shaft (13) and provides resistance for the main shaft (13) to act is arranged in the cavity (12), a first mark (4) capable of marking fat change is arranged on the display screen (11), and the first mark (4) is used for switching marks according to the number of times of the main shaft (13) acts;

the side wall of the box body (1) is provided with a through heat dissipation through hole (14), a combined convection duct (5) capable of simultaneously carrying out convection type air inlet and outlet is arranged in the heat dissipation through hole (14), an active ventilation mechanism (6) is arranged in the box body (1) at a position close to the combined convection duct (5), and the active ventilation mechanism (6) carries out convection type ventilation and heat exchange in the box body (1) by utilizing the combined convection duct (5);

the combined convection duct (5) comprises a main pipe (51) arranged at the heat dissipation through hole (14), an auxiliary pipe (52) with the outer diameter smaller than the inner diameter of the main pipe (51) is arranged in the main pipe (51), and a connecting lug (53) for positioning and connecting the auxiliary pipe (52) is arranged between the main pipe (51) and the auxiliary pipe (52);

the box comprises a box body (1), and is characterized by further comprising a hollow seat (54) arranged on the inner wall of the box body (1), wherein one side of the hollow seat (54) is provided with an air outlet (55) communicated with a main pipe (51) so as to conduct the hollow seat (54) with the main pipe (51), the other side of the hollow seat (54) is provided with a passing hole (56), and the auxiliary pipe (52) extends from the air outlet (55) to the inside of the hollow seat (54) and is communicated with the inside of the box body (1) after passing through the passing hole (56);

the side wall of the hollow seat (54) is provided with a through mounting hole (57), the active ventilation mechanism (6) is arranged in the mounting hole (57) to pump the air in the box body (1) into the hollow seat (54) and discharge the air by the main pipe (51), and meanwhile, the air in the box body (1) is pumped from the outside by the auxiliary pipe (52) to form convection with the air discharged from the main pipe (51);

the active ventilation mechanism (6) comprises a rotating shaft (63) which is arranged in the mounting hole (57) by utilizing a mounting frame, fan blades (64) are arranged on the rotating shaft (63), and ventilation is performed when the rotating shaft (63) drives the fan blades (64) to rotate;

the device also comprises a linkage mechanism (65) arranged between the rotating shaft (63) and the main shaft (13), wherein the main shaft (13) drives the rotating shaft (63) to act for sucking when in action, a temperature sensor (66) is arranged in the box body (1), and a second mark (67) capable of marking the change of the internal heat of the box body (1) is arranged on the display screen (11);

the linkage mechanism (65) comprises first chain wheels (651) arranged on the rotating shafts (63), and first chains (652) are arranged outside the first chain wheels (651) so as to synchronize the rotating shafts (63);

any rotation shaft (63) is further provided with a second chain wheel (653), the main shaft (13) is provided with a third chain wheel (654), and the outer sides of the second chain wheel (653) and the third chain wheel (654) are provided with a second chain (655) so as to drive the rotation shaft (63) to rotate when the main shaft (13) rotates.

2. A light box for a picture as defined in claim 1, wherein: the main shaft (13) is arranged in the cavity (12) by utilizing a rotating shaft, the holding part (2) is an extension shaft (21) which is arranged at the end part of the main shaft (13) and extends reversely along the vertical main shaft (13), and an arc edge handle (22) matched with the hand of a human body is arranged at the end part of the extension shaft (21).

3. A light box for a picture as claimed in claim 2, wherein: the load component (3) comprises a torsion spring (31) sleeved on the main shaft (13), and two ends of the torsion spring (31) are respectively connected with the inner wall of the cavity (12) and the main shaft (13);

and a monitoring mechanism (32) connected with the main shaft (13) is further arranged in the cavity (12), and the number of times of the main shaft (13) is monitored when the main shaft (13) acts.

4. A light box for a picture as claimed in claim 3, wherein: the monitoring mechanism (32) comprises a hollow guide rail (321) arranged on the inner wall of the cavity (12), a sliding seat (322) is arranged in the hollow guide rail (321) in a sliding mode, a traction rope (323) is arranged on one side, close to the main shaft (13), of the sliding seat (322), a belt wheel (324) is arranged on the main shaft (13), a through groove (325) is formed in the hollow guide rail (321), the traction rope (323) penetrates through the through groove (325) and then is fixedly wound on the belt wheel (324), and a spring (326) is arranged between the bottom end of the sliding seat (322) and the inner wall of the hollow guide rail (321);

the laser device is characterized by further comprising a laser receiver (327) arranged on the inner wall of the cavity (12), wherein a through channel (328) is arranged on the side wall of one side of the hollow guide rail (321) close to the laser receiver (327), and a laser emitter (329) is embedded on one side of the sliding seat (322) close to the channel (328), and the sliding seat (322) is opposite to the laser receiver (327) in the longitudinal movement process.

5. A light box for a picture as defined in claim 1, wherein: the sprocket three (654) diameter is much larger than the sprocket two (653) diameter.