CN113759642B

CN113759642B - Intelligent projector for modern teaching and training

Info

Publication number: CN113759642B
Application number: CN202111070511.7A
Authority: CN
Inventors: 牛洁; 刘艳
Original assignee: Dezhou Vocational and Technical College
Current assignee: Dezhou Vocational and Technical College
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2023-02-17
Anticipated expiration: 2041-09-13
Also published as: CN113759642A

Abstract

The invention relates to the relevant technical field of projection equipment and discloses an intelligent projector for modern teaching and training, which comprises a wall body and a projector, wherein a fire-fighting pipe is arranged on the inner wall of the wall body, a storage cavity with a downward opening is formed in the inner wall of the wall body, a support frame positioned in the storage cavity is in threaded connection with the side wall of the fire-fighting pipe, a movable plug is movably installed on the inner wall of the support frame, and an adjusting pipe is fixedly connected to the inner wall of the movable plug. The fan blades are arranged in the adjusting pipe and are communicated with the inner cavity of the projector through the heat dissipation cavity, so that the airflow pressure in the inner cavity of the support frame is enhanced through the rotation of the fan blades, the projector is pushed out, the height adjustment of the projector is realized, meanwhile, the temperature of the hot airflow blown by the fan blades is exchanged with the temperature of a cold water medium in the fire fighting pipe, the water medium cooling in the projector is realized, the external temperature cannot influence the heat dissipation of the projector, and the independent adjustment of the installation height and the water-cooling heat dissipation are finally realized.

Description

Intelligent projector for modern teaching and training

Technical Field

The invention relates to the related technical field of projection equipment, in particular to an intelligent projector for modern teaching and training.

Background

The projector is a device for amplifying images and videos to a projection cloth, so that a plurality of people can watch the images and videos in a long distance, and the projector is widely used in places such as teaching and training rooms, enterprise meeting rooms and the like.

However, in the actual use process, since the projector is fixed on the top of the room, when the imaging position is adjusted up and down, a person needs to perform high-altitude alignment through a ladder stand and the like, so that the projector is not flexible in the process of height adjustment under projection.

Simultaneously, the in-process of the long-time use of projecting apparatus at top hoist and mount can be because its temperature heat dissipation is bad, and leads to the problem that its high temperature was shut down, and causes the problem of projecting apparatus high temperature mainly to derive from two convenience: firstly, the projector arranged in the air can gather to the shell of the projector due to dust in the air, and when the projector radiates heat through the shell, the heat radiation efficiency of the shell of the projector is reduced due to the fact that a large amount of dust is gathered, so that the internal temperature of the projector continuously rises due to poor heat radiation; another convenient setting that mainly derives from the louvre of projecting apparatus, in order to guarantee its cleanness that inhales outside air current, make outside air carry to the inside of projecting apparatus by the fan through the filter, because its filter is in long-time filtering process, a large amount of dust of its surface gathering, thereby influence the volume that its outside air current got into, and then make inside air cooling slower, and simultaneously, when its outside ambient temperature is too high, make the great reduction of radiating effect of projecting apparatus through its inspiratory air current of fan, cause, can make the projecting apparatus appear its phenomenon of shutting down because of the high temperature.

Further, since the projector is generally used in a place where people gather, when the projector catches fire due to high temperature, the projector can be automatically turned off by an internal control circuit, but the projector after the fire is on the top of the room, it is not easy to find the fire, and it is inconvenient in the process of personal rescue.

Disclosure of Invention

Aiming at the defects of the existing projector in the use process in the background technology, the invention provides the intelligent projector for the modern teaching and training, which has the advantages of automatically adjusting the installation height, performing water cooling heat dissipation, stabilizing projection, automatically extinguishing fire and enhancing the heat dissipation efficiency, and solves the technical problems in the background technology.

The invention provides the following technical scheme: the utility model provides an intelligent projecting apparatus is used in modern teaching training, includes wall body and projecting apparatus, the wall body inner wall is equipped with the fire control pipe, and the inner wall of wall body is equipped with the decurrent storage chamber of opening, the lateral wall threaded connection of fire control pipe has the support frame that is arranged in the storage chamber, and the inner wall movable mounting of support frame has the activity to fill in, activity stopper inner wall fixedly connected with adjusting pipe, the bottom of the inner wall of support frame, activity stopper and the lateral wall of adjusting pipe constitute has the decurrent transfusion chamber of opening, and the transfusion chamber communicates with each other with the inner chamber of fire control pipe, the bottom fixed mounting of adjusting pipe has the projecting apparatus that runs through the support frame and be located the support frame below, and the projecting apparatus is arranged in the storage chamber of wall body, the inner wall of adjusting pipe is equipped with the heat dissipation chamber, the heat dissipation chamber communicates with each other with the inner chamber of support frame, the inner wall of adjusting pipe is arranged in the heat dissipation chamber movable mounting have the dead lever, and the middle part fixed mounting of dead lever has driving motor, driving motor's axis of rotation fixed mounting has the flabellum that is arranged in the heat dissipation chamber.

Preferably, a speed regulator for controlling the rotation speed of the driving motor is fixedly installed on the side wall of the wall body, and the speed regulator is connected with the projector in parallel.

Preferably, the outer side wall of the adjusting pipe is provided with a fixing plug, and the outer side wall of the fixing plug is fixedly connected with the inner wall of the support frame.

Preferably, the top of the side wall of the adjusting pipe is movably provided with a transmission rod, one end of the transmission rod is provided with an oblique angle, the other end of the transmission rod is provided with a sharp angle, the oblique angle of the transmission rod in the heat dissipation cavity is matched with one end of the fixing rod, the transmission rod and the fixing rod are at the same horizontal height, and the inner wall of the support frame is provided with a limiting groove matched with the sharp angle at the other end of the transmission rod.

Preferably, the end face of the limiting groove is 7-shaped, and the limiting groove is distributed on one side of the inner wall of the supporting frame at equal intervals from top to bottom.

Preferably, the inner wall top of support frame is equipped with the limit ring, and the limit ring is the cylinder annular, the middle part fixedly connected with detection tube of transfer line, the lateral wall bottom of adjusting tube be equipped with the communicating pressure relieving hole in heat dissipation chamber, and the height value of pressure relieving hole center pin apart from the limit ring bottom end face is than the fixed stopper bottom end face height value one centimetre more.

Preferably, the main part shape of support frame is half open-ended cylinder, and the opening terminal surface of support frame is equipped with the screw thread string platform that is used for fire-fighting pipe threaded connection, the square groove that is located support frame opening end department is seted up at the lateral wall top of support frame, and the square groove realizes that the transfusion chamber communicates with each other with the fire-fighting pipe inner chamber.

The invention has the following beneficial effects:

1. the fan blades are arranged in the adjusting pipe and are communicated with the inner cavity of the projector through the heat dissipation cavity, so that the airflow pressure in the inner cavity of the support frame is enhanced through the rotation of the fan blades, the projector is pushed out, the height adjustment of the projector is realized, meanwhile, the hot airflow blown by the fan blades is exchanged with the temperature of the cold water medium in the fire fighting pipe, the water medium cooling in the projector is realized, the external temperature is enabled not to influence the heat dissipation of the projector, and the purposes of independently adjusting the installation height and performing water cooling heat dissipation are finally realized.

2. According to the projector, the transmission rod is movably mounted on the side wall of the adjusting pipe, the limiting groove is formed in the supporting frame, and the detection pipe is arranged in the transmission rod, so that the projector is clamped in the limiting groove through the transmission rod in the using process of the projector, the projector is guaranteed to be stably located at the preset position, stable projection is achieved, meanwhile, after the detection pipe is heated and broken, water flow in the fire fighting pipe directly acts on the projector, active fire extinguishing of the inner cavity of the projector is achieved through a water medium, the phenomenon that the projector cannot be found and processed in time when located at a high position is avoided, and the purposes of stable projection and automatic fire extinguishing are achieved finally.

3. The invention realizes gas-liquid separation between the liquid conveying cavity and the heat dissipation cavity by arranging the movable plug, realizes temperature reduction in the projector by cooling medium in the fire fighting pipe, and enables the projector to automatically contract to the inner wall of the wall body when the projector is not used by medium pressure in the fire fighting pipe, thereby avoiding the phenomenon of temperature reduction efficiency reduction caused by dust accumulation on the projector shell, and finally reducing dust accumulation to achieve the purpose of enhancing heat dissipation efficiency.

Drawings

FIG. 1 is a schematic sectional view of the overall assembly of the structure of the present invention;

FIG. 2 is an enlarged view of the point A in FIG. 1;

FIG. 3 is a perspective view of the overall assembly of the structure of the present invention;

FIG. 4 is a schematic view of a structural support frame of the present invention;

FIG. 5 is a schematic diagram of the present invention in a normal state;

FIG. 6 is a schematic diagram of the structure of the present invention.

In the figure: 1. a wall body; 2. a fire hose; 3. a projector; 4. a support frame; 40. a transfusion cavity; 5. a movable plug; 6. an adjusting tube; 60. a heat dissipation cavity; 7. fixing the rod; 8. a drive motor; 9. a fan blade; 10. a speed regulator; 11. a fixed plug; 12. slowly pressing the hole; 13. a confinement ring; 14. a transmission rod; 15. a limiting groove; 16. and (6) detecting the tube.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, an intelligent projector for modern teaching and training comprises a wall 1 and a projector 3, in order to realize the emergency fire-extinguishing function of the gathering place, a fire-fighting pipe 2 is arranged on the inner wall of the wall 1, a storage cavity with a downward opening is arranged on the inner wall of the wall 1, a support frame 4 in the storage cavity is connected with the side wall of the fire-fighting pipe 2 through a screw thread, a movable plug 5 is movably arranged on the inner wall of the support frame 4, and an adjusting pipe 6 is fixedly connected with the inner wall of the movable plug 5, so that a transfusion cavity 40 with a downward opening is formed by the inner wall of the support frame 4, the bottom of the movable plug 5 and the outer side wall of the adjusting pipe 6, the transfusion cavity 40 is communicated with the inner cavity of the fire-fighting pipe 2, meanwhile, the bottom of the adjusting pipe 6 is fixedly provided with the projector 3 which penetrates through the support frame 4 and is arranged below the support frame 4, and the projector 3 is arranged in the storage cavity of the wall 1, the inner wall of the adjusting pipe 6 is provided with a heat dissipation cavity 60, the heat dissipation cavity 60 is communicated with the inner cavity of the support frame 4, meanwhile, the heat dissipation cavity 60 is communicated with the inner cavity of the projector 3, a fixing rod 7 is movably arranged on the inner wall of the adjusting pipe 6 and positioned in the heat dissipation cavity 60, a driving motor 8 is fixedly arranged in the middle of the fixing rod 7, and a fan blade 9 positioned in the heat dissipation cavity 60 is fixedly arranged on a rotating shaft of the driving motor 8, so that the air flow in the heat dissipation cavity 60 is conveyed to the inner cavity of the support frame 4 through the fan blade 9 by the rotation of the driving motor 8, the inner cavity is separated from the infusion cavity 40 through the movable plug 5, meanwhile, the medium in the fire fighting pipe 2 is filled into the infusion cavity 40, and the pressure of the inner cavity of the support frame 4 is continuously increased, so that the pressure of the air flow overcomes the pressure of the water medium in the infusion cavity 40, and the adjusting pipe 6 moves downwards, so that the adjusting pipe 6 pushes the projector 3 out of the storage cavity, and the projector 3 projects the projection, meanwhile, through the rotation of the fan blades 9, the air flow in the projector 3 is exchanged with the air flow in the inner cavity of the support frame 4, the inner cavity of the support frame 4 acts on the inner cavity of the projector 3 through the low-temperature air flow cooled by the fire fighting pipe 2, so as to cool the inner cavity of the projector 3, and finally, through the storage cavity formed in the wall body 1, when the wall body 1 is in a normal state, the wall body 1 can be retracted into the wall body 1, so that the phenomenon that the shell gathers a large amount of dust due to the fact that the projector 3 is placed outside for a long time is prevented, so as to influence the heat dissipation of the shell, and meanwhile, because the projector 3 is the water medium in the inner cavity of the fire fighting pipe 2 introduced into the infusion cavity 40, whether the fire fighting pipe 2 is normally retracted or not can be clearly detected in a normal working state through whether the projector 3 is normally retracted or not.

In order to adjust the projector 3 to a proper position, the speed regulator 10 for controlling the rotation speed of the driving motor 8 is fixedly installed on the side wall of the wall 1, and the speed regulator 10 is connected with the projector 3 in parallel, so that the speed regulator 10 is a spiral regulator, i.e. the rotation speed of the fan is controlled through stepless regulation in the prior art, and the speed regulator is connected with the projector 3 in parallel, so that the driving motor 8 and the projector 3 can work synchronously when the speed regulator 10 is in an open state, and meanwhile, when the speed regulator 10 rotates through a spiral, the rotation speed of the driving motor 8 is further controlled, so that the stronger the rotation speed of the driving motor 8 is, the stronger the air flow filled into the inner cavity of the support frame 4 in the heat dissipation cavity 60 is caused by the fan blades 9, the air flow pressure in the support frame 4 can be enhanced, the ejection of the adjusting pipe 6 is further realized, the projector 3 can be ejected to a proper position through the adjusting pipe 6, and the height of the projector 3 can be conveniently adjusted.

Wherein, in order to realize its adjusting pipe 6 in support frame 4 bottom face slip, aqueous medium in its transfusion cavity 40 can outwards spill over, therefore install fixed stopper 11 through the lateral wall at adjusting pipe 6, and the lateral wall of fixed stopper 11 and the inner wall fixed connection of support frame 4, therefore realize the wall of its transfusion cavity 40 and outside air through its fixed stopper 11, thereby make adjusting pipe 6 carry out up-and-down back and forth movement in-process through its fixed stopper 11, the phenomenon of excessive can not appear in the rivers in its transfusion cavity 40.

In order to realize that the projector 3 can be stably fixed to a proper position, a transmission rod 14 is movably mounted at the top of the side wall of the adjusting tube 6, one end of the transmission rod 14 is provided with an oblique angle, and the other end of the transmission rod 14 is provided with a sharp angle, the oblique angle of the transmission rod 14 in the heat dissipation cavity 60 is matched with one end of the fixing rod 7, the transmission rod 14 and the fixing rod 7 are at the same horizontal height, and a limit groove 15 matched with the sharp angle of the other end of the transmission rod 14 is formed in the inner wall of the support frame 4, so that in the working process of the projector, the fixing rod 7 deflects downwards along the movable mounting position of the adjusting tube 6 in the rotating process of the fan blade 9, after one end of the fixing rod 7 is contacted with the oblique angle of the transmission rod 14, the transmission rod 14 slides towards the limit groove 15, so that the sharp angle on the transmission rod 14 is clamped into the limit groove 15, and after the projector 3 is adjusted to the proper position, the fan blade 9 continuously rotates, thereby not only ensuring that the pressure in the inner cavity of the support frame 4 is continuous, but also ensuring that the fan blade 9 is clamped in the fixing rod 7 in the fixing cavity, and the fixing rod 7, thereby, and the fixing rod 7 is always has an unstable floating speed, so that the fixing rod 7 always keeps the fixing rod 7, and the fixing rod 7, thereby the fixing rod can always keep the fixing rod in the stable and the stable state, and the fixing rod 7, thereby preventing the fixing rod 7 from rotating speed from being stably rotating process of the fixing rod 7 from being clamped in the fixing rod 7.

According to the attached drawing 2, wherein, the end face shape of the limiting groove 15 is 7-shaped, and the limiting groove 15 is distributed on one side of the inner wall of the support frame 4 at equal intervals from top to bottom, so that the plurality of limiting grooves 15 are arranged, the requirement that the adjusting pipe 6 can continuously extend outwards is met, the projector 3 can be fixed at a plurality of positions, meanwhile, the limiting grooves 15 are arranged in the 7-shaped manner, and the movable plug 5 is sealed and moves up and down, namely, the movement of the movable plug is not influenced, and the sealing performance of the movable plug is also ensured.

Wherein, in order to realize the autonomous fire extinguishing in its projector 3 and the restriction of the lifting height of the projector 3, therefore through being equipped with the limit ring 13 at the top of the inner wall of the supporting frame 4, and the limit ring 13 is the cylindrical ring shape, meanwhile, the middle part of the drive rod 14 is fixedly connected with the detection tube 16, and there is a slow pressure hole 12 communicating with the heat dissipation chamber 60 at the sidewall bottom of the adjusting tube 6, and the height value of the center axis of the slow pressure hole 12 from the bottom end face of the limit ring 13 is one centimeter more than the height value of the bottom end face of the fixed plug 11 from the bottom end face of the limit ring 13, thus in the process of the actual work, through its detection tube 16 and the sidewall of the drive rod 14 contact with the bottom of the limit ring 13, thus make the projector 3 unable to rise, and through the restriction of the height value of its slow pressure hole 12, make the slow pressure hole 12 locate under the fixed plug 11, and then carry on the projector 3, simultaneously, through its slow pressure hole 12 moderate pressure of the heat dissipation chamber 60 and the outside air pressure, and the wire such as the cotton block in the air, thus prevent the air from entering into the projector 3 and the projector 3, thereby not only can be used for the high temperature detection tube 3, the high temperature detection tube detection of the projector can be detected by its principle of the high temperature detection tube 16, it is the high temperature detection tube when it is detected in the projector 3, it is detected in the projector, it is the high temperature detection tube.

Meanwhile, as shown in the attached drawing 4, the main body of the support frame 4 is a half-open cylinder, and the opening end face of the support frame 4 is provided with a thread hanging table for the threaded connection of the fire fighting pipe 2, meanwhile, a square groove located at the opening end of the support frame 4 is arranged at the top of the side wall of the support frame 4, and the infusion cavity 40 is communicated with the inner cavity of the fire fighting pipe 2 through the square groove, so that the support frame 4 can be fixed to cooperate with the fire fighting pipe 2, the projector 3 is stored and cooled by the aid of media in the fire fighting pipe 2, and meanwhile, the projector 3 can know whether the fire fighting pipe 2 normally works or not through the height position of the projector 4 in real time.

The using method (working principle) of the invention is as follows:

the non-working state: namely, as shown in fig. 5, at this time, the governor 10 is in a closed state, and because the aqueous medium in the fire fighting pipe 2 is filled into the infusion chamber 40, the movable plug 5 drives the adjusting pipe 6 to have an upward trend, the driving rod 14 is pushed to the bottom of the limiting ring 13, and the projector 3 is retracted into the top inner wall of the wall 1, so that the projector 3 is not directly exposed in the air during the non-operation process of the projector 3, and dust accumulation on the housing of the projector 3 is avoided;

the working state is as follows: namely, in the state of normal use of the projector 3, as shown in fig. 6, firstly, the projector 3 is extended and the height is adjusted, and the speed regulator 10 is rotated to open, at this time, the projector 3 and the driving motor 8 start to start, and further, the speed regulator 10 is adjusted, so that the rotation speed of the driving motor 8 is increased, and the driving motor 8 drives the fan blade 9 to rotate, so that the fan blade 9 continuously blows the air flow in the heat dissipation cavity 60 to the top of the inner cavity of the support frame 4, the rotation speed of the fan blade 9 is increased synchronously through the increase of the driving motor 8, so that the pressure at the top of the inner cavity of the support frame 4 is increased, and further, the medium pressure in the infusion cavity 40 is overcome, so that the adjusting pipe 6 drives the movable plug 5 to move downwards, so that the projector 3 is pushed downwards, so that the image of the projector 3 is projected onto the projection screen (the projection screen is not shown in the figure), then, after the image position of the projector 3 reaches the required position through the adjustment of the speed regulator 10, the adjustment is not adjusted and kept, meanwhile, because the air flow of the fan blade 9 causes the downward movement of the fan blade 9 to cause the heat flow to be pressed against the heat generation fixing rod 7 in the heat dissipation cavity 7, and the heat dissipation rod 7 is pressed against the projection tube 14, so that the heat generation fixing rod 7 is pressed against the projection tube 14, and the projection tube 14, so that the projection tube 7 is pressed against the heat generation cavity 14, and the projection tube 7 is pressed against the projection tube 4, and the projection tube 14, in addition, the cooled cold airflow flows to the inner cavity of the projector 3, so that the temperature inside the projector 3 is reduced, the heat dissipation cavity 60 and the inner cavity of the projector 3 are always kept at proper pressure through the pressure relief hole 12, and the damage of components caused by overlarge pressure in the inner cavity of the projector 3 is avoided;

when a fire occurs in the projector 3, the generated flame is transmitted upwards, the detection pipe 16 is burned to cause the detection pipe to be broken, and after the limiting groove 15 is broken, because one end of the transmission rod 14 cannot provide support for the fixed rod 7, the fixed rod 7 continues to deflect downwards, and further through the rotation of the fan blade 9, the airflow in the heat dissipation cavity 60 cannot rapidly flow to the top of the inner cavity of the support frame 4, so that the pressure at the top of the inner cavity of the support frame 4 is reduced, meanwhile, the transmission rod 14 cannot be clamped on the limiting groove 15 due to the breakage of the detection pipe 16, and under the action of the medium pressure in the infusion cavity 40, the movable plug 5 pushes the adjusting pipe 6 to ascend, so that the top of the adjusting pipe 6 is arranged in the inner cavity of the limiting ring 13, at the moment, the pressure relief hole 12 of the pressure relief hole passes over the fixed plug 11 and is communicated with the inner cavity of the fire fighting pipe 2, so that the water flow medium in the fire fighting pipe 2 directly flows from the heat dissipation cavity 60 to the inside of the projector 3, and the fire point in the projector 3 is extinguished; if the internal control circuit in the projector 3 is automatically switched off, the driving motor 8 will not rotate, so the fire extinguishing steps are the same as the above;

when the projector is not in fire for closing, the driving motor 8 and the projector 3 are synchronously closed through closing of the speed regulator 10, and then the fan blade 9 does not rotate, so that the fan blade 9 does not have a downward movement trend, namely downward pressure is not applied to the fixed rod 7, at this time, the transmission rod 14 is forced to be ejected out of the limiting groove 15 through the pressure of the water medium in the infusion cavity 40, and slides towards the fixed rod 7 through the transmission rod 14, so that the fixed rod 7 is deflected upwards through the transmission rod 14, the driving motor 8 and the fan blade 9 are synchronously deflected upwards, the transmission rod 14 cannot clamp the transmission rod 14 on the limiting groove 15 due to no pressure on the fixed rod 7, and in the process that the movable plug 5 drives the adjusting pipe 6 to continuously move upwards, the side walls of the detection pipe 16 and the transmission rod 14 are clamped at the bottom of the limiting ring 13, so that the adjusting pipe 6 cannot continuously move upwards, at this time, the slow pressure hole 12 is positioned below the fixed plug 11, and meanwhile, the projector 3 is positioned in the inner wall body top wall body 1, and the position of the projector 3 can be fixed;

and (3) detecting the water pressure in the fire fighting pipe 2: make adjusting pipe 6 jack-up through the rivers pressure in its fire control pipe 2, and then receive its projecting apparatus 3 in the top of wall body 1 is inside, and simultaneously, whether be in the inner wall of wall body 1 through its projecting apparatus 3 under the normality can be clear judge whether have rivers in its fire control pipe 2, and when its projecting apparatus 3 under the normality, do not be in the top of wall body 1 is inside, then no rivers in the fire control pipe 2 of this moment of explanation, otherwise, be in the top inner wall of wall body 1 in its projecting apparatus 3, then explain to have rivers in the fire control pipe 2, thereby can directly feed back through projecting apparatus 3 whether normal work of fire control pipe 2.

It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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 invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an intelligent projecting apparatus is used in modern teaching training, includes wall body (1) and projecting apparatus (3), its characterized in that: the inner wall of the wall body (1) is provided with a fire fighting pipe (2), the inner wall of the wall body (1) is provided with a storage cavity with a downward opening, the side wall of the fire fighting pipe (2) is in threaded connection with a support frame (4) positioned in the storage cavity, the inner wall of the support frame (4) is movably provided with a movable plug (5), the inner wall of the movable plug (5) is fixedly connected with an adjusting pipe (6), the inner wall of the support frame (4), the bottom of the movable plug (5) and the outer side wall of the adjusting pipe (6) form a transfusion cavity (40) with a downward opening, and the transfusion cavity (40) is communicated with the inner cavity of the fire fighting pipe (2), the bottom fixed mounting of adjusting pipe (6) has projecting apparatus (3) that runs through support frame (4) and is located support frame (4) below, and projecting apparatus (3) are located the storage chamber of wall body (1), the inner wall of adjusting pipe (6) is equipped with heat dissipation chamber (60), heat dissipation chamber (60) communicates with each other with the inner chamber of support frame (4), and heat dissipation chamber (60) communicates with each other with the inner chamber of projecting apparatus (3), the inner wall of adjusting pipe (6) is arranged in heat dissipation chamber (60) movable mounting has dead lever (7), and the middle part fixed mounting of dead lever (7) has driving motor (8), the axis of rotation fixed mounting of driving motor (8) has flabellum (9) that is arranged in heat dissipation chamber (60), the main part shape of support frame (4) is half open-ended cylinder, and the opening terminal surface of support frame (4) is equipped with the screw thread string platform that is used for fire control pipe (2) threaded connection, the square groove that is located support frame (4) opening end department is seted up at the lateral wall top of support frame (4), and the square groove realizes that infusion chamber (40) communicates with each other with fire control pipe (2) inner chamber.

2. The intelligent projector for modern teaching and training as claimed in claim 1, wherein: the side wall of the wall body (1) is fixedly provided with a speed regulator (10) for controlling the rotation speed of the driving motor (8), and the speed regulator (10) is connected with the projector (3) in parallel.

3. The intelligent projector for modern teaching and training as claimed in claim 1, wherein: the outer side wall of the adjusting pipe (6) is provided with a fixing plug (11), and the outer side wall of the fixing plug (11) is fixedly connected with the inner wall of the support frame (4).

4. The intelligent projector for modern teaching and training as claimed in claim 1, wherein: the utility model discloses a heat dissipation device, including support frame (4), adjusting pipe (6), the lateral wall top movable mounting of adjusting pipe (6) has transfer line (14), and the one end of transfer line (14) is equipped with the oblique angle, the other end is equipped with the closed angle, transfer line (14) are located the oblique angle in heat dissipation chamber (60) and the one end looks adaptation of dead lever (7), and transfer line (14) and dead lever (7) are in same level, spacing groove (15) with transfer line (14) other end closed angle looks adaptation are seted up to support frame (4) inner wall.

5. The intelligent projector for modern teaching and training as claimed in claim 4, wherein: the end face shape of the limiting groove (15) is 7-shaped, and the limiting groove (15) is distributed on one side of the inner wall of the support frame (4) at equal intervals from top to bottom.

6. The intelligent projector for modern teaching and training as claimed in claim 4, wherein: the inner wall top of support frame (4) is equipped with limit ring (13), and limit ring (13) are the cylinder annular, the middle part fixedly connected with detection tube (16) of transfer line (14), the lateral wall bottom of adjusting tube (6) is equipped with heat dissipation chamber (60) communicating pressure slowing hole (12), and slowly presses hole (12) center pin to have more one centimetre apart from limit ring (13) bottom end face height value than fixed stopper (11) bottom end face apart from limit ring (13).