CN114063378A

CN114063378A - Intelligent projecting apparatus is used in english teaching

Info

Publication number: CN114063378A
Application number: CN202111315651.6A
Authority: CN
Inventors: 张新燕
Original assignee: Jiangxi Normal University
Current assignee: Jiangxi Normal University
Priority date: 2021-11-08
Filing date: 2021-11-08
Publication date: 2022-02-18

Abstract

The invention relates to the technical field of projection equipment, and discloses an intelligent projector for English teaching, wherein a threaded hole is formed in a position, which is positioned on one side of an outer frame and below a resistor rod, of the projector, and the threaded hole is sleeved with a screw rod through threads, the projector comprises a shell, a mercury lamp is fixedly arranged on one side of an inner cavity of the shell and in the middle of the inner cavity of the shell, a stroke device is driven to rotate by controlling a power machine to rotate, the threaded hole and the screw rod are sleeved in a threaded fit mode, so that the threaded hole can move along the axial direction of the screw rod while the screw rod rotates, the distance between a display device and an optical chamber is changed, light of the mercury lamp enters the interior of the optical chamber in a divergent mode and is projected to one side of the display device, the intensity of the light projected to one side of the display device can be changed by changing the distance between the display device and the optical chamber, and the projection brightness of the projector can be adjusted in a simpler mode, the complexity of the device is reduced.

Description

Intelligent projecting apparatus is used in english teaching

Technical Field

The invention relates to the technical field of projection equipment, in particular to an intelligent projector for English teaching.

Background

The projector is a very common display device, can show the content that the small screen shows on the curtain through enlarging, can make things convenient for more people to watch, often be used in teaching, in occasions such as meeting and film showing, current comparatively common projector can divide into traditional optical projector, DLP projector and 3LCD projector, wherein traditional optical projection is because simple structure, the low price is the most extensive projector of application scope at present, mainly there is the LED lamp, transparent panel and camera lens three main component constitute, shine on transparent panel thereby the formation of image through the light that LED emits, the formation of image is being carried out through speculum and camera lens, be the most extensive projector of application scope at present.

Although the existing traditional optical projector has many advantages, a certain limitation still exists in the actual use process, because the projector is compact in internal structure and cannot adopt a mercury lamp with large heat productivity, and the brightness of an LED light source is far lower than that of the mercury lamp used in a DLP projector and a 3LCD projector, the projector is low in imaging brightness, the projection content cannot be seen clearly when the projector is used in the daytime, and particularly, smaller words and letters cannot be seen clearly in English teaching, so that great trouble is brought to teaching work.

Disclosure of Invention

Aiming at the defects of the existing intelligent projector for English teaching in the background technology in the using process, the invention provides the intelligent projector for English teaching, which has the advantage of improving the projection brightness by adopting a mercury lamp and solves the problem that the projection cannot be seen clearly in the daytime when the imaging brightness of the traditional equipment is too low.

The invention provides the following technical scheme: an intelligent projector for English teaching comprises a shell, wherein a mercury lamp is fixedly mounted on one side of an inner cavity of the shell and positioned in the middle of the inner cavity of the shell, a light chamber is fixedly mounted at one end of the mercury lamp, a fixing frame is fixedly mounted at the top and the bottom of the light chamber and fixedly connected with the shell, a power machine is fixedly mounted on one side of the inner cavity of the shell and positioned at two sides of the mercury lamp, a stroke device is fixedly mounted at one end of an output shaft of the power machine, sleeving and connecting plates are fixedly mounted at two sides of the light chamber, a circular through hole is formed in one side of the sleeving and movably sleeved with the stroke device, a display device is sleeved on the outer surface of the stroke device and positioned at one side of the light chamber through threads, a light adjusting plate is sleeved on the outer surface of the stroke device and positioned at one side of the display device through threads, and a reflecting plate is fixedly mounted at the other side of the inner cavity of the shell, the display device is characterized in that an air hole is formed in a position, close to one side of the display device and one side of the light adjusting plate, of the outer surface of the shell, a lens is formed in a position, close to one side of the reflecting plate, of one side of the outer surface of the shell, a circular through hole is formed in the position, close to the other side of the reflecting plate, of the other side of the outer surface of the shell, and a cooling fan is fixedly arranged inside the circular through hole.

Preferably, the stroke device includes the lead screw, display device cup joints through the screw with the lead screw, the one end fixed mounting of lead screw has end journey board I, fixed mounting has the trigger piece on one side of end journey board I and the position that is located the lead screw outside.

Preferably, the output end of the trigger piece is connected with the input end of the mercury lamp in a signal connection mode.

Preferably, display device includes outer frame, the inside fixed mounting that draw-in groove and this draw-in groove were seted up to the top of outer frame has transparent panel, fixed mounting has the temperature-sensing strip on outer frame one side and the position that is located the transparent panel outside, outer frame one side is close to the both sides fixed mounting that the top just is located the temperature-sensing strip and has the resistance stick, the one end fixed mounting of resistance stick has end journey board II, set up threaded hole and screw hole on the position that outer frame one side is located the resistance stick below and pass through screw thread and lead screw regulation.

Preferably, the output of the resistance rod 84 is connected to the input of the power machine 5 by means of a signal connection.

The invention has the following beneficial effects:

1. according to the projector, the mercury lamp is fixedly arranged on one side of the inner cavity of the shell and positioned in the middle, so that the brightness of the equipment is improved after the mercury lamp is adopted, the brightness of an image after projection is improved, compared with the projection brightness of a traditional projector adopting an LED lamp with lower brightness as a light source, the projection brightness is obviously improved, the problem that people cannot clearly observe the image when the traditional equipment is used in daytime is avoided, and the practicability of the device is improved.

2. The invention is characterized in that a threaded hole is arranged at the position of one side of the outer frame below the resistance rod and is sleeved with the screw rod through threads, so that the stroke device is driven to rotate by controlling the rotation of the power machine, the threaded hole and the screw rod are sleeved in a thread matching manner, the threaded hole can move along the axial direction of the screw rod while the screw rod rotates, thereby changing the distance between the display device and the light chamber, because the light of the mercury lamp enters the light chamber in a divergent manner and is projected at one side of the display device, the intensity of the light projected at one side of the display device can be changed by changing the distance between the display device and the light chamber, when the distance between the display device and the light chamber is increased, the intensity of the projected light at one side of the display device is increased, at the moment, the projection brightness is increased, and when the distance between the display device and the light chamber is decreased, the intensity of the light projected by one side of the display device is reduced, and the projection brightness is improved at the moment, so that the projection brightness can be adjusted in a simpler mode, and the complexity of the device is reduced.

3. The temperature sensing strip is fixedly arranged at one side of the outer frame and positioned outside the transparent panel, a large amount of heat can be emitted by the mercury lamp in the normal operation process to cause the surface temperature of the transparent panel to rise, at the moment, the temperature sensing strip can sense the temperature of the mercury lamp, the output end of the temperature sensing strip is connected with the input end of the mercury lamp in a signal connection mode, when the temperature is higher, the temperature sensing strip can control the power machine to drive the stroke device to rotate, so that the distance between the display device and the light chamber is increased, the heat conduction efficiency is reduced, meanwhile, the light irradiation intensity received by the display device can also be reduced, the temperature of the mercury lamp is reduced, when the temperature is reduced, the power machine is controlled by the temperature sensing strip to drive the stroke device to rotate, the distance between the display device and the light chamber is reduced, and the screen projection brightness is improved as far as possible on the premise that the temperature is not higher than a limit value, the device has the effect of improving the screen projection brightness as much as possible on the premise of ensuring that the internal structure is not damaged by high temperature, the problem that the display image is abnormal or even damaged due to high temperature of the display device is reduced, and the running stability of the device is improved.

4. The part between one end of the resistance rod close to the stop plate II and the sleeve plate is connected into a power supply circuit of the cooling fan, so that the volume of a channel formed between the outer frame and the light chamber is continuously increased in the process that the temperature sensing strip senses the temperature rise and drives the outer frame to move so as to increase the distance between the outer frame and the light chamber, thereby increasing the volume of fluid passing through the space between the outer frame and the light chamber in unit time, further improving the cooling efficiency in the process of temperature rise, improving the practicability of the device, simultaneously, the length of the part between one end of the resistance rod close to the stop plate II and the sleeve plate is also continuously shortened, further improving the rotating speed of the cooling fan, further improving the cooling efficiency of the device, and synchronously improving the power of the cooling fan and the temperature sensed by the temperature sensing strip, thereby realizing the effect of automatic regulation and control, the automation of the device is improved.

5. The output end of the trigger piece is connected with the input end of the mercury lamp in a signal connection mode, so that the outer frame can be in contact with the trigger piece after the outer frame moves to the stroke limit, the outer frame cannot move continuously and the radiating efficiency cannot be improved, the trigger piece can control the mercury lamp to be closed, the problem that the transparent panel is damaged due to the fact that the radiating efficiency reaches the limit and the heat degree is continuously increased is solved, and the stability of the device is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of the structure of the present invention;

FIG. 3 is a schematic view of the internal structure of the present invention;

FIG. 4 is an enlarged view of the point A in FIG. 2;

FIG. 5 is a schematic view of a structural display device according to the present invention.

In the figure: 1. a housing; 2. mercury lamps; 3. an optical chamber; 4. a fixed mount; 5. a power machine; 6. a stroke device; 61. a screw rod; 62. a stop board I; 63. a trigger piece; 7. sleeving and connecting plates; 8. a display device; 81. an outer frame; 82. a transparent panel; 83. a temperature sensing strip; 84. a resistance rod; 85. a stop board II; 86. a threaded hole; 9. a light-adjusting plate; 10. a reflective plate; 11. air holes; 12. a lens; 13. a heat dissipation fan.

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. 1-3, an intelligent projector for english teaching comprises a housing 1, a mercury lamp 2 is fixedly mounted at a middle position on one side of an inner cavity of the housing 1, so that the brightness of the device is improved after the mercury lamp 2 is used, thereby improving the brightness of an image after projection, compared with the projection brightness of a conventional projector using an LED lamp with lower brightness as a light source, the projection brightness is obviously improved, the problem that people can not clearly observe the image when the conventional device is used in daytime is avoided, the practicability of the device is improved, a light chamber 3 is fixedly mounted at one end of the mercury lamp 2, a fixing frame 4 is fixedly mounted at the top and the bottom of the light chamber 3, the fixing frame 4 is fixedly connected with the housing 1, a power machine 5 is fixedly mounted at a position on one side of the inner cavity of the housing 1 and on two sides of the mercury lamp 2, and a stroke device 6 is fixedly mounted at one end of an output shaft of the power machine 5, both sides fixed mounting of light room 3 has socket plate 7, one side of socket plate 7 has been seted up circular through-hole and this circular through-hole cup joints with the activity of stroke device 6, the display device 8 has been cup jointed through the screw thread on the position that stroke device 6 surface just is located light room 3 one side, the board 9 of putting is cup jointed through the screw thread on the position that stroke device 6 surface just is located display device 8 one side, the opposite side fixed mounting of 1 inner chamber of shell has reflecting plate 10, seted up gas pocket 11 on 1 surface one side of shell and the position that is close to display device 8 and board 9 one side of putting, seted up camera lens 12 on 1 surface one side of shell and the position that is close to reflecting plate 10 one side, the inside fixed mounting who sets up circular through-hole and this circular through-hole on 1 surface opposite side of shell and the position that is close to reflecting plate 10 opposite side has radiator fan 13.

Referring to fig. 4, the stroke device 6 includes a screw rod 61, the display device 8 is sleeved with the screw rod 61 through a screw thread, one end of the screw rod 61 is fixedly installed with a stop plate i 62, and a trigger piece 63 is fixedly installed at a position on one side of the stop plate i 62 and located outside the screw rod 61.

Referring to fig. 4, the output end of the trigger piece 63 is connected to the input end of the mercury lamp 2 by signal connection, so that the outer frame 81 contacts the trigger piece 63 after the outer frame 81 moves to the stroke limit, the outer frame 81 cannot move continuously and the heat dissipation efficiency cannot be improved, the trigger piece 63 controls the mercury lamp 2 to be turned off, the problem that the transparent panel 82 is damaged due to the fact that the heat dissipation efficiency reaches the limit and the heat is still continuously increased is solved, and the stability of the device is improved.

Referring to fig. 5, the display device 8 includes an outer frame 81, a slot is disposed on the top of the outer frame 81, a transparent panel 82 is fixedly mounted inside the slot, a temperature sensing bar 83 is fixedly mounted on a position on one side of the outer frame 81 and outside the transparent panel 82, the mercury lamp 2 can emit a large amount of heat during normal operation to raise the surface temperature of the transparent panel 82, the temperature sensing bar 83 can sense the temperature of the mercury lamp, because the output end of the temperature sensing bar 83 is connected to the input end of the mercury lamp 2 by means of signal connection, the temperature sensing bar 83 can control the power machine 5 to drive the stroke device 6 to rotate when the temperature is high, so that the distance between the display device 8 and the light chamber 3 is increased to reduce the heat conduction efficiency, and the light irradiation intensity received by the display device 8 can be reduced to reduce the temperature of the mercury lamp, when the temperature is reduced, the temperature sensing bar 83 can control the power machine 5 to drive the stroke device 6 to rotate, the distance between the display device 8 and the light chamber 3 is reduced, thereby ensuring that the screen projecting brightness is improved as much as possible under the premise that the temperature is not higher than a limit value, ensuring that the device has the effect of improving the screen projecting brightness as much as possible under the premise that the internal structure is not damaged by high temperature, reducing the problem that the display image is abnormal or even damaged when the display device 8 is subjected to high temperature, and improving the running stability of the device, wherein one side of the outer frame 81 is close to the top and is fixedly provided with the resistance bars 84 at two sides of the temperature sensing strip 83, one end of the resistance bar 84 is fixedly provided with the stop plate II 85, one side of the outer frame 81 is provided with the threaded hole 86 at the position below the resistance bar 84, and the threaded hole 86 is sleeved with the screw rod 61 through threads, so that the power machine 5 is controlled to rotate to drive the stroke device 6 to rotate, and because the threaded hole 86 and the screw rod 61 are sleeved in a thread fit manner, so that the screw hole 86 moves in the axial direction of the screw 61 while the screw 61 rotates, thereby changing the interval between the display device 8 and the light chamber 3, since the light of the mercury lamp 2 enters the interior of the light chamber 3 in a divergent form and is projected on one side of the display device 8, such that a change in the distance between the display device 8 and the light chamber 3 causes a change in the intensity of the light projected on the side of the display device 8, as the distance between the display device 8 and the light chamber 3 increases, the intensity of the light projected on the side of the display device 8 increases, at which point the projection brightness increases, as the separation between the display device 8 and the light chamber 3 decreases, the intensity of the light projected on the side of the display device 8 decreases, at which point the projection brightness increases, therefore, the projector can be adjusted to adjust the brightness of projection in a simpler mode, and the complexity of the device is reduced.

Referring to fig. 5, a portion of the resistor bar 84 between one end of the stop plate ii 85 and the socket plate 7 is connected to a power supply line of the heat dissipation fan 13, so that the temperature sensing bar 83 senses a temperature rise and drives the outer frame 81 to move, so that a distance between the outer frame 81 and the optical chamber 3 is increased, and at this time, a channel volume formed between the outer frame 81 and the optical chamber 3 is also continuously increased, so that a fluid volume passing through between the outer frame 81 and the optical chamber 3 in a unit time is increased, thereby improving a heat dissipation efficiency in the temperature rise process, improving a practicability of the apparatus, and meanwhile, a length of a portion of the resistor bar 84 between one end of the stop plate ii 85 and the socket plate 7 is also continuously shortened, so that a rotation speed of the heat dissipation fan 13 is increased, further improving a heat dissipation efficiency of the apparatus, and a power of the heat dissipation fan 13 can be increased in synchronization with a temperature sensed by the temperature sensing bar 83, therefore, the effect of automatic regulation and control is realized, the automation of the device is improved, and the output end of the temperature sensing strip 83 is connected with the input end of the mercury lamp 2 in a signal connection mode.

The using method of the invention is as follows:

in the using process, when the projection brightness of the equipment needs to be regulated, the power machine 5 is controlled to rotate so as to drive the stroke device 6 to rotate, the threaded hole 86 and the screw rod 61 are sleeved in a threaded fit mode, so that the threaded hole 86 can move along the axial direction of the screw rod 61 while the screw rod 61 rotates, the distance between the display device 8 and the light chamber 3 is changed, the light of the mercury lamp 2 enters the light chamber 3 in a divergent mode and is projected to one side of the display device 8, the intensity of the light projected to one side of the display device 8 can be changed due to the change of the distance between the display device 8 and the light chamber 3, when the distance between the display device 8 and the light chamber 3 is increased, the intensity of the light projected to one side of the display device 8 is increased, the projection brightness is increased at the moment, when the distance between the display device 8 and the light chamber 3 is reduced, the intensity of the light projected by one side of the display device 8 is reduced, the projection brightness is improved at the moment, the mercury lamp 2 can emit a large amount of heat in the normal operation process to cause the surface temperature of the transparent panel 82 to be increased, the temperature sensing strip 83 can sense the temperature of the mercury lamp at the moment, the output end of the temperature sensing strip 83 is connected with the input end of the mercury lamp 2 in a signal connection mode, the temperature sensing strip 83 can control the power machine 5 to drive the stroke device 6 to rotate when the temperature is higher, so that the distance between the display device 8 and the light chamber 3 is improved, the heat conduction efficiency is reduced, the light irradiation intensity received by the display device 8 can be reduced, the temperature of the mercury lamp is reduced, the power machine 5 is controlled by the temperature sensing strip 83 to drive the stroke device 6 to rotate when the temperature is reduced, the distance between the display device 8 and the light chamber 3 is reduced, and the screen projection brightness is improved as far as possible on the premise that the temperature is not higher than a limit value, the temperature sensing strip 83 senses the temperature rise and drives the outer frame 81 to move so that the distance between the outer frame 81 and the optical chamber 3 is increased, at the moment, the volume of a channel formed between the outer frame 81 and the optical chamber 3 is also continuously increased, so that the volume of fluid passing through the space between the outer frame 81 and the optical chamber 3 in unit time is increased, the heat dissipation efficiency is improved in the temperature rise process, and the practicability of the device is improved, meanwhile, the length of a part between one end, close to the stop plate II 85, of the resistance rod 84 and the socket plate 7 is also continuously shortened, so that the rotating speed of the heat dissipation fan 13 is improved, the heat dissipation efficiency of the device is further improved, the power of the heat dissipation fan 13 can be synchronously improved with the temperature sensed by the temperature sensing strip 83, the automatic regulation effect is realized, the outer frame 81 is in contact with the trigger piece 63 after moving to the stroke limit, at this time, the outer frame 81 cannot move further and the heat dissipation efficiency cannot be improved, and the trigger 63 controls the mercury lamp 2 to be turned off.

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 english teaching is with intelligent projecting apparatus, includes shell (1), its characterized in that: the mercury lamp (2) is fixedly installed on one side of an inner cavity of the shell (1) and located in the middle, the optical chamber (3) is fixedly installed at one end of the mercury lamp (2), the fixing frame (4) is fixedly installed at the top and the bottom of the optical chamber (3), the fixing frame (4) is fixedly connected with the shell (1), the power machine (5) is fixedly installed on one side of the inner cavity of the shell (1) and located on two sides of the mercury lamp (2), the stroke device (6) is fixedly installed at one end of an output shaft of the power machine (5), the sleeving plate (7) is fixedly installed on two sides of the optical chamber (3), a circular through hole is formed in one side of the sleeving plate (7) and movably sleeved with the stroke device (6), and the display device (8) is sleeved on the outer surface of the stroke device (6) and located on one side of the optical chamber (3) through threads, the utility model discloses a camera lens, including stroke device (6), shell (1), reflector plate (10), camera lens (12), the inside fixed mounting who offers circular through-hole and this circular through-hole has radiator fan (13), the board (9) of putting through the screw thread cover has been cup jointed on the position of stroke device (6) surface and being located display device (8) one side, the opposite side fixed mounting of shell (1) inner chamber has reflector plate (10), offer on shell (1) surface one side and being close to the position of display device (8) and whole board (9) one side has gas pocket (11), set up camera lens (12) on shell (1) surface one side and being close to the position of reflector plate (10) one side, the inside fixed mounting who offers circular through-hole and this circular through-hole has radiator fan (13) on shell (1) surface opposite side and being close to the position of reflector plate (10) opposite side.

2. The intelligent projector for English teaching of claim 1, wherein: stroke device (6) include lead screw (61), display device (8) cup joint through the screw with lead screw (61), the one end fixed mounting of lead screw (61) has only journey board I (62), fixed mounting has trigger piece (63) on the one side of only journey board I (62) and the position that is located the lead screw (61) outside.

3. The intelligent projector for English teaching of claim 2, wherein: the output end of the trigger piece (63) is connected with the input end of the mercury lamp (2) in a signal connection mode.

4. The intelligent projector for English teaching of claim 2, wherein: display device (8) are including outer frame (81), the inside fixed mounting that draw-in groove and this draw-in groove were seted up to the top of outer frame (81) has transparent panel (82), outer frame (81) one side and be located the position in the transparent panel (82) outside fixed mounting have temperature-sensing strip (83), outer frame (81) one side is close to the top and is located the both sides fixed mounting of temperature-sensing strip (83) and has resistance stick (84), the one end fixed mounting of resistance stick (84) has end journey board II (85), set up threaded hole (86) and threaded hole (86) on the position that outer frame (81) one side is located resistance stick (84) below and adjust through screw thread and lead screw (61).

5. The intelligent projector for English teaching of claim 4, wherein: the output end of the resistance rod (84) is connected with the input end of the power machine (5) in a signal connection mode.