A lifting projector

Abstract

The present invention relates to the technical field of projection equipment, and provides a lifting projector, comprising an electric cabinet suitable for being equipped with a remote control, a lifting device installed in the electric cabinet, and a projection device fixedly connected to the lifting device. The lifting device is used to lift the projection device accommodated in the electric cabinet to the outside of the electric cabinet, and is also used to lower the projection device extending out of the electric cabinet into the electric cabinet, so as to prevent the remote control from being arbitrarily placed by the user to a position outside the lifting projector, thereby improving the utilization rate of the electric cabinet and helping the user to remember the position of the remote control.

Description

Technical Field

[0001] The present invention relates to the technical field of projection equipment, and in particular to a lifting projector. Background Art

[0002] In the related art, an existing lifting projector usually includes a lifting device and a projector fixedly connected to the lifting device. When a user touches the remote control, the remote control sends a control signal to the lifting device, and the lifting device can receive and drive the projector to rise and fall according to the aforementioned control signal. However, since the remote control is separated from the aforementioned lifting projector, the remote control can be easily placed by the user at a position outside the aforementioned lifting projector, and the user can easily forget the location of the remote control and cause inconvenience. Summary of the invention

[0003] In view of the drawback that the existing lifting projector and the remote control are separated from each other, the present invention provides a lifting projector, which comprises an electric cabinet suitable for being equipped with a remote control, a lifting device installed in the electric cabinet and a projection device fixedly connected to the lifting device; the lifting device is used to lift the projection device accommodated in the electric cabinet to the outside of the electric cabinet, and is also used to lower the projection device extending out of the electric cabinet into the electric cabinet.

[0004] The beneficial effect of the lift-type projector provided by the present invention is that the remote control, the lifting device and the projection device are spatially configured with the help of an electrical cabinet, so that the remote control is designated to be configured on the lift-type projector, and the remote control is prevented from being arbitrarily placed by the user at a position outside the lift-type projector, thereby improving the utilization rate of the electrical cabinet, helping the user to remember the location of the remote control, and helping to provide convenience for the user.

[0005] On the basis of the above technical solution, the present invention also makes the following improvements.

[0006] Optionally, the top open end of the electric cabinet; the lifting projector also includes a spring-pressing device installed in the electric cabinet and a middle frame embedded in the open end and having two through holes; the remote control is inserted into one of the through holes on the middle frame and the open end in sequence and is detachably fixedly connected to the spring-pressing device; the lifting device is used to lift the projection device accommodated in the electric cabinet to the outside of the electric cabinet through another through hole on the middle frame, and is also used to lower the projection device extending out of the electric cabinet into the electric cabinet through another through hole on the middle frame, and the projection device is inserted through the open end.

[0007] The beneficial effect of the above scheme is: with the help of the spring-pressing device, the remote control can be assembled in the electric cabinet in a detachable manner, thereby improving the utilization rate of the electric cabinet, taking into account the disassembly and stability of the remote control in the electric cabinet, making it easy for the user to take the remote control out of the electric cabinet and put it back into the electric cabinet, which helps to improve the user experience. With the help of the middle frame, the electric cabinet can be sealed on the basis of making space for the remote control and the projection device, which helps to protect the lifting device.

[0008] Optionally, the spring-pressing device includes a snap-on, an elastic bracket and a U-shaped groove; the snap-on is embedded in the elastic bracket, and the elastic bracket is installed in the U-shaped groove; the U-shaped groove is detachably installed on the inner wall of the electric cabinet, and an accommodation space is formed between the elastic bracket, the U-shaped groove and the inner wall of the electric cabinet, and the remote control is accommodated in the accommodation space; when the elastic bracket is compressed, the elastic bracket is engaged with the snap-on, and the remote control is located as a whole inside the electric cabinet; when the elastic bracket is extended, the elastic bracket is released from the engagement with the snap-on, and the remote control passes through the opening end and extends out of the electric cabinet from one of the through holes on the middle frame.

[0009] The beneficial effect of the above scheme is that: with the help of the elastic bracket, the snap-on part and the remote control are configured in the U-shaped groove, thereby improving the space utilization of the elastic bracket and the U-shaped groove, and simplifying the method of adjusting the height of the remote control, making it easier for the remote control to extend out of the electric cabinet, so that the remote control can be taken out of the electric cabinet and put back into the electric cabinet by the user.

[0010] Optionally, the elastic bracket includes a first fixing plate, a second fixing plate, a connecting rod, a plurality of springs and a plurality of guide pins; the first fixing plate and the second fixing plate are relatively spaced and arranged in parallel, and the first fixing plate is slidably positioned in the U-shaped groove, and the second fixing plate is embedded in the U-shaped groove; there are a plurality of guide pins, and the plurality of guide pins are vertically inserted through the first fixing plate and the second fixing plate, and one end of each guide pin is located on the side opposite to the first fixing plate and the second fixing plate, and each guide pin The other end is located on the side of the second fixing plate opposite to the first fixing plate; the spring is sleeved on each of the guide nails, and the spring is fixedly connected to the second fixing plate; the connecting rod is provided on the first fixing plate and on the side opposite to the second fixing plate, and the connecting rod is arranged opposite to the snap member, and the snap member is embedded in the second fixing plate; when external force presses the first fixing plate to compress the spring, the connecting rod is snapped into the snap member; when the spring stretches to reset the first fixing plate, the connecting rod and the snap member are released from the snap member.

[0011] The beneficial effect of the above scheme is that the connecting rod, multiple springs and multiple guide pins are azimuthally configured with the help of two fixing plates, thereby improving the utilization rate of the two fixing plates and taking into account the simplicity, stability and reliability of the elastic bracket working in the U-shaped trough.

[0012] Optionally, the lifting device includes a lifting support, a sliding rod, a synchronous belt, a first support, a second support, a motor and a third support; the first support, the second support and the third support can be detachably installed in the electric cabinet, and the first support and the second support are arranged opposite to each other up and down, and the third support is arranged close to the second support; the sliding rod is provided between the first support and the second support, the lifting support is slidably installed on the sliding rod, and the projection device is fixedly installed on the lifting support; the motor is installed on the third support, the synchronous belt is wound around the rotating wheel of the third support through the second support, and the synchronous belt is also fixedly connected to the lifting support; when the motor rotates forward and reversely, the lifting support is driven by the synchronous belt to move up and down along the sliding rod.

[0013] The beneficial effect of the above scheme is that the lifting support, the slide rod, the synchronous belt and the motor are fixed in position by means of three supports, which helps to enhance the stability and reliability of the lifting device in lifting the projection device in the electric cabinet and helps to save manpower.

[0014] Optionally, the lifting projector also includes a control device installed in the electrical cabinet and a touch panel installed outside the projection device; the control device is electrically connected to the touch panel and the motor respectively, and when the touch panel is touched, the control device is suitable for conducting with the touch panel and the motor to drive the rotating wheel of the motor to rotate forward or reverse.

[0015] The beneficial effect of the above scheme is: by cooperating with the control device and the touch panel to automatically drive the motor, the utilization rate of the internal space of the electrical cabinet, the utilization rate of the projection device and the utilization rate of the control device are improved, which provides convenience for the automatic lifting projection device and helps to improve the user experience.

[0016] Optionally, the lifting projector also includes a limit switch installed on the lifting support; the control device is electrically connected to the limit switch, and when the lifting support reaches a preset position, the control device is suitable for connecting with the limit switch to control the rotating wheel to stop rotating.

[0017] The beneficial effect of the above scheme is: by coordinating the control device with the limit switch to automatically control the motor, the utilization rate of the internal space of the electric cabinet and the utilization rate of the control device are improved, and convenience is provided for the automatic limit lifting support to prevent the projection device from excessively lifting and lowering in the electric cabinet motor and damaging each other.

[0018] Optionally, a first window is provided on the electrical cabinet; the lifting projector also includes a fourth support installed at the first window, and an audio socket and a first power socket respectively installed in the fourth support; the control device is electrically connected to the audio socket and the first power socket.

[0019] The beneficial effects of the above scheme are: with the help of the fourth support, the way of assembling the audio socket and the first power socket in the electric cabinet is simplified, the utilization rate of the internal space of the electric cabinet is improved, the stability of the audio socket and the first power socket in the electric cabinet is ensured, and with the help of the first window, it is convenient for external devices to access the audio socket and the first power socket, and the audio socket and the first power socket are controlled separately by the control device, which helps to improve the utilization rate of the control device.

[0020] Optionally, the lifting projector further includes a fixing bracket installed in the electrical cabinet and a power adapter installed on the fixing bracket; and the control device is electrically connected to the power adapter.

[0021] The beneficial effects of the above scheme are: with the help of a fixed bracket, the way of assembling the power adapter in the electric cabinet is simplified, the utilization rate of the internal space of the electric cabinet is improved, the stability of the power adapter in the electric cabinet is ensured, and the power adapter is controlled by a control device, which helps to improve the utilization rate of the control device.

[0022] Optionally, the projection device includes a sleeve and a projector installed in the sleeve, and a communication socket and a second power socket respectively installed on the sleeve; a second window is provided on the sleeve, the second window is arranged opposite to the projection head of the projector, and the sleeve is fixedly connected to the lifting support; the projector is electrically connected to the communication socket and the power adapter, respectively; the electric cabinet surrounds the outside of the sleeve, the control device is electrically connected to the second power socket, and the touch panel is installed outside the sleeve.

[0023] The beneficial effects of the above scheme are: with the help of the sleeve, the position of the projector, the communication socket, the second power socket and the sleeve are configured, which improves the utilization rate of the sleeve; with the help of the second window, the light projected by the projector is avoided to prevent the sleeve from interfering with the projection of the projector; through the coordination of the control device with the power adapter, the communication socket and the second power socket, the normal operation of the projector is guaranteed, and the utilization rate of the control device is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the disassembled structure of a lifting projector according to an embodiment of the present invention;

[0025] Figure 2 For the corresponding Figure 1A schematic top view of an assembly structure of a lifting projector;

[0026] Figure 3 For the corresponding Figure 1 A schematic top view of another assembly structure of the lifting projector;

[0027] Figure 4 For the corresponding Figure 1 A schematic diagram of the structure of the spring pressing device;

[0028] Figure 5 For the corresponding Figure 4 A schematic diagram of the structure of the elastic support in FIG.

[0029] Figure 6 For the corresponding Figure 4 A schematic diagram of the structure of the fastener in FIG.

[0030] Figure 7 For the corresponding Figure 1 A side view schematic diagram of another assembly structure of the lifting projector;

[0031] Figure 8 For the corresponding Figure 1 A cross-sectional schematic diagram of another assembly structure of the lifting projector;

[0032] Fig. 9 The figure is a circuit diagram of a lifting projector according to an embodiment of the present invention.

[0033] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0034] 1-remote control, 2-electric cabinet, 3-lifting device, 4-projection device, 5-spring pressure device, 6-middle frame, 7-control device, 8-touch panel, 9-limit switch, 10-fourth support, 11-audio socket, 12-first power socket, 13-fixed bracket, 14-power adapter, 15-guide rail, 16-cable collection trough;

[0035] 21-open end, 22-first window, 31-lifting support, 32-sliding rod, 33-synchronous belt, 34-first support, 35-second support, 36-motor, 37-third support, 41-sleeve, 42-projector, 43-communication socket, 44-second power socket, 51-fastener, 52-elastic bracket, 53-U-shaped trough;

[0036] 411 - second window, 511 - block portion, 512 - clamping portion, 521 - first fixing plate, 522 - second fixing plate, 523 - connecting rod, 524 - spring, 525 - guide pin. DETAILED DESCRIPTION

[0037] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention but not to limit the scope of the present invention. The figure numbers of the same components remain consistent.

[0038] See also Figure 1 , shows a lifting projector according to an embodiment of the present invention, which comprises an electric cabinet 2 suitable for being equipped with a remote control 1, a lifting device 3 installed in the electric cabinet 2, and a projection device 4 fixedly connected to the lifting device 3; the lifting device 3 is used to lift the projection device 4 accommodated in the electric cabinet 2 to the outside of the electric cabinet 2, and is also used to lower the projection device 4 extending out of the electric cabinet 2 into the electric cabinet 2.

[0039] Exemplarily, when the remote control 1 is idle, the remote control 1 is installed inside or outside the electric cabinet 2. When the user wants to use the remote control 1, the remote control 1 is taken out from the electric cabinet 2. With the help of the remote control 1, the lifting device 3 and / or the projection device 4 can be controlled.

[0040] With the help of the electrical cabinet 2, the remote control 1, the lifting device 3 and the projection device 4 are spatially configured, so that the remote control 1 is designated to be configured on the lifting projector, and the remote control 1 is prevented from being arbitrarily placed by the user at a position outside the lifting projector, thereby improving the utilization rate of the electrical cabinet 2, helping the user to remember the location of the remote control 1, and providing convenience for the user.

[0041] Alternatively, see Figure 1 , Figure 2 , Figure 3 , Figure 7 and Figure 8 , an open end 21 is provided on the top of the electric cabinet 2; the lifting projector also includes a spring pressing device 5 installed in the electric cabinet 2 and a middle frame 6 embedded in the open end 21 and having two through holes; the remote control 1 is inserted into a through hole and the open end 21 on the middle frame 6 in sequence and is detachably fixedly connected with the spring pressing device 5; the lifting device 3 is used to lift the projection device 4 accommodated in the electric cabinet 2 to the outside of the electric cabinet 2 through another through hole on the middle frame 6, and is also used to lower the projection device 4 extending out of the electric cabinet 2 into the electric cabinet 2 through another through hole on the middle frame 6, and the projection device 4 is inserted through the open end 21.

[0042] Exemplarily, the spring-pressing device 5 is of a hollow structure and is mounted on the inner wall of the electric cabinet 2 by a plurality of first screws, and the middle frame 6 is of an annular structure and is mounted outside the opening end 21 by a plurality of second screws; two through holes are respectively provided on the middle frame 6, and the two through holes are respectively a third window adapted to the remote control 1 and a fourth window adapted to the projection device 4; a part of the remote control 1 is accommodated in the spring-pressing device 5, and another part of the remote control 1 is sequentially inserted through the opening end 21 and the third window, and the projection device 4 is sequentially inserted through the opening end 21 and the fourth window. Those skilled in the art can set the position and size of the third window and the fourth window on the middle frame 6, and for the sake of brevity, they will not be repeated here.

[0043] With the help of the spring-pressing device 5, the remote control 1 is detachably assembled in the electric cabinet 2, which improves the utilization rate of the electric cabinet 2 and takes into account the disassembly and stability of the remote control 1 in the electric cabinet 2, making it easy for the user to take the remote control 1 out of the electric cabinet 2 and put it back into the electric cabinet 2, which helps to improve the user experience. With the help of the middle frame 6, the electric cabinet 2 can be sealed on the basis of making space for the remote control 1 and the projection device 4, which helps to protect the lifting device 3.

[0044] Alternatively, see Figure 1 , Figure 3 and Figure 4 The spring-pressing device 5 includes a snap-fitting member 51, an elastic bracket 52 and a U-shaped groove 53. The snap-fitting member 51 is embedded in the elastic bracket 52, and the elastic bracket 52 is installed in the U-shaped groove 53. The U-shaped groove 53 is detachably installed on the inner wall of the electric cabinet 2. An accommodating space is formed between the elastic bracket 52, the U-shaped groove 53 and the inner wall of the electric cabinet 2. The remote control 1 is accommodated in the accommodating space. For example, the U-shaped groove 53 is installed on the inner wall of the electric cabinet 2 by a plurality of first screws, and the notch of the U-shaped groove 53 is in contact with the inner wall of the electric cabinet 2.

[0045] When the elastic bracket 52 is compressed, the elastic bracket 52 is engaged with the snap-fit ​​piece 51, and the remote control 1 is located as a whole inside the electric cabinet 2; when the elastic bracket 52 is extended, the elastic bracket 52 is released from the snap-fit ​​piece 51, and the remote control 1 passes through the opening end 21 and extends out of the electric cabinet 2 from a through hole on the middle frame 6.

[0046] With the help of the elastic bracket 52, the fastener 51 and the remote control 1 are configured in the U-shaped groove 53, thereby improving the space utilization of the elastic bracket 52 and the U-shaped groove 53 respectively, and also simplifying the method of adjusting the height of the remote control 1, making it easier for the remote control 1 to extend out of the electric cabinet 2, so that the remote control 1 can be taken out of the electric cabinet 2 and put back into the electric cabinet 2 by the user.

[0047] Alternatively, see Figure 4 and Figure 5The elastic bracket 52 includes a first fixing plate 521, a second fixing plate 522, a connecting rod 523, a spring 524 and a guide pin 525; the first fixing plate 521 and the second fixing plate 522 are relatively spaced and arranged in parallel, and the first fixing plate 521 is slidably positioned in the U-shaped groove 53, and the second fixing plate 522 is embedded in the U-shaped groove 53; there are a plurality of guide pins 525, and the plurality of guide pins 525 are vertically inserted through the first fixing plate 521 and the second fixing plate 522, and one end of each guide pin 525 is located on the opposite side of the first fixing plate 521 and the second fixing plate 522, and each guide pin 52 The other end of each guide pin 525 is located at the side of the second fixing plate 522 opposite to the first fixing plate 521; a spring 524 is sleeved on each guide pin 525, and the spring 524 is fixedly connected to the second fixing plate 522; a connecting rod 523 is provided on the first fixing plate 521 and on the side opposite to the second fixing plate 522, and the connecting rod 523 is arranged opposite to the snap member 51, and the snap member 51 is embedded in the second fixing plate 522; when an external force presses the first fixing plate 521 to compress the spring 524, the connecting rod 523 is snapped into the snap member 51; when the spring 524 stretches to reset the first fixing plate 521, the connecting rod 523 and the snap member 51 are released from the snapping.

[0048] For example, see Figure 6 The buckle 51 includes a block portion 511 and two elastic clamping portions 512 respectively fixedly connected to the top of the block portion 511. The two elastic clamping portions 512 are suitable for clamping the connecting rod 523 when closed, and the two elastic clamping portions 512 are also suitable for releasing the connecting rod 523 when opened.

[0049] Exemplarily, the length of each spring 524 is smaller than the length of the corresponding guide pin 525 , and a distance is left between each guide pin 525 and the first fixing plate 521 .

[0050] Exemplarily, when the remote control 1 is pressed, the remote control 1 can apply pressure to the first fixing plate 521, so that the first fixing plate 521 moves toward the second fixing plate 522 along the multiple guide pins 525. In the process of the first fixing plate 521 approaching the second fixing plate 522, each spring 524 remains unchanged until the two elastic clamping parts 512 clamp the connecting rod 523, and each spring 524 contacts the first fixing plate 521 respectively, and there is a gap between the square part 511 and the connecting rod 523; when the remote control 1 is pressed again, the first fixing plate 521 continues to move toward the second fixing plate 522, and the multiple springs 524 are all compressed until the connecting rod 523 contacts the square part 511; when the remote control 1 is released, the multiple springs 524 recover, so that the first fixing plate 521 moves to its original position, and the two elastic clamping parts 512 release the connecting rod 523.

[0051] With the help of two fixing plates, the connecting rod 523, multiple springs 524 and multiple guide pins 525 are azimuthally arranged, thereby improving the utilization rate of the two fixing plates and taking into account the simplicity, stability and reliability of the elastic bracket 52 working in the U-shaped groove body 53.

[0052] Alternatively, see Figure 1 The lifting device 3 includes a lifting support 31, a slide bar 32, a synchronous belt 33, a first support 34, a second support 35, a motor 36 and a third support 37; the first support 34, the second support 35 and the third support 37 are all detachably installed in the electric cabinet 2, and the first support 34 and the second support 35 are arranged opposite to each other up and down, and the third support 37 is arranged close to the second support 35; a slide bar 32 is provided between the first support 34 and the second support 35, the lifting support 31 is slidably installed on the slide bar 32, and the projection device 4 is fixedly installed on the lifting support 31; the motor 36 is installed on the third support 37, the synchronous belt 33 is wound around the rotating wheel of the third support 37 through the second support 35, and the synchronous belt 33 is also fixedly connected to the lifting support 31; when the motor 36 is rotated forward and reversely, the lifting support 31 is driven by the synchronous belt 33 to move up and down along the slide bar 32.

[0053] Exemplarily, the first support 34 is distributed above the second support 35 and is arranged opposite to the second support 35, the two slide bars 32 are arranged at intervals between the first support 34 and the second support 35, and the two ends of each slide bar 32 are fixedly connected to the first support 34 and the second support 35 respectively.

[0054] With the help of three supports, the lifting support 31, the slide rod 32, the synchronous belt 33 and the motor 36 are fixed in position, which helps to enhance the stability and reliability of the lifting device 3 in lifting the projection device 4 in the electric cabinet 2 and helps to save manpower.

[0055] It should be noted that the installation methods of the first support 34 , the second support 35 and the third support 37 are similar to the installation method of the spring pressing device 5 , and for the sake of simplicity, they are not repeated here.

[0056] Alternatively, see Figure 1 and Fig. 9 The lifting projector also includes a control device 7 installed in the electric cabinet 2 and a touch panel 8 installed outside the projection device 4; the control device 7 is electrically connected to the touch panel 8 and the motor 36 through wires, and when the touch panel 8 is touched, the control device 7 is suitable for conducting with the touch panel 8 and the motor 36 to drive the wheel of the motor 36 to rotate forward or reverse.

[0057] Exemplarily, a first touch switch including a descending icon and a second touch switch including an ascending icon are respectively provided on the touch panel 8; when a touch operation is applied to the first touch switch, the first touch switch outputs a first electrical control signal to the control device 7, and the control device 7 is suitable for driving the motor 36 according to the first electrical control signal, so that the wheel of the motor 36 rotates forward, and the synchronous belt 33 drives the lifting support 31 to descend due to the forward rotation of the wheel following the motor 36; or, when a touch operation is applied to the second touch switch, the second touch switch outputs a second electrical control signal to the control device 7, and the control device 7 is suitable for driving the motor 36 according to the second electrical control signal, so that the wheel of the motor 36 rotates reversely, and the synchronous belt 33 drives the lifting support 31 to ascend due to the reverse rotation of the wheel following the motor 36.

[0058] By cooperating the control device 7 with the touch panel 8 to automatically drive the motor 36, the utilization rate of the internal space of the electric cabinet 2, the utilization rate of the projection device 4 and the utilization rate of the control device 7 are improved, which provides convenience for the automatic lifting of the projection device 4 and helps to improve the user experience.

[0059] It should be noted that the installation methods of the control device 7 and the touch panel 8 are similar to the installation method of the spring pressing device 5, and for the sake of simplicity, they are not repeated here.

[0060] Alternatively, see Figure 1 and Fig. 9 The lifting projector also includes a limit switch 9 installed on the lifting support 31; the control device 7 is electrically connected to the limit switch 9 through an electric wire. When the lifting support 31 reaches a preset position, the control device 7 is suitable for connecting with the limit switch 9 to control the rotating wheel of the motor 36 to stop rotating.

[0061] For example, see Figure 1 The lifting projector also includes a guide rail 15 installed in the electric cabinet 2 and parallel to the slide bar 32, and the guide rail 15 is arranged opposite to the limit switch 9, and lower protrusions and upper protrusions are arranged on the guide rail 15 at intervals. For example, the limit switch 9 is a travel switch.

[0062] Exemplarily, when the limit switch 9 descends to the position of the lower protrusion or rises to the position of the upper protrusion along with the lifting support 31, the limit switch 9 generates a third electrical control signal due to the collision with the lower protrusion or the upper protrusion, and the limit switch 9 outputs the third electrical control signal to the control device 7, wherein the position of the lower protrusion is the lowest preset position where the lifting support 31 can descend, and the position of the upper protrusion is the highest preset position where the lifting support 31 can rise; the control device 7 is suitable for being connected with the limit switch 9 according to the third electrical control signal, and when being connected with the limit switch 9, shutting down the motor 36 to stop the rotation of the wheel of the motor 36.

[0063] By cooperating the control device 7 with the limit switch 9 to automatically control the motor 36, the utilization rate of the internal space of the electric cabinet 2 and the utilization rate of the control device 7 are improved, and convenience is provided for the automatic limit lifting support 31 to prevent the projection device 4 from being excessively lifted and lowered in the electric cabinet motor 36 and causing mutual damage.

[0064] It should be noted that the installation methods of the limit switch 9 and the guide rail 15 are similar to the installation method of the spring pressing device 5, and for the sake of simplicity, they are not repeated here.

[0065] Alternatively, see Figure 1 , Figure 7 and Fig. 9 A first window 22 is provided on the electrical cabinet 2; the lifting projector also includes a fourth support 10 installed at the first window 22, and an audio socket 11 and a first power socket 12 respectively installed in the fourth support 10; the control device 7 is electrically connected to the audio socket 11 through a data cable and to the first power socket 12 through an electric wire.

[0066] Exemplarily, the fourth support 10 is a flat plate, which is installed in the electrical cabinet 2 and seals the first window 22 , the audio socket 11 and the first power socket 12 are distributed at intervals and are respectively inserted through the aforementioned flat plate, and the audio socket 11 and the first power socket 12 both extend into the first window 22 .

[0067] With the help of the fourth support 10, the way of assembling the audio socket 11 and the first power socket 12 in the electric cabinet 2 is simplified, the utilization rate of the internal space of the electric cabinet 2 is improved, and the stability of the audio socket 11 and the first power socket 12 in the electric cabinet 2 is ensured. With the help of the first window 22, it is convenient for external devices to access the audio socket 11 and the first power socket 12. The audio socket 11 and the first power socket 12 are controlled separately by the control device 7, which helps to improve the utilization rate of the control device 7.

[0068] Alternatively, see Figure 1 and Fig. 9 The lifting projector further includes a fixing bracket 13 installed in the electric cabinet 2 and a power adapter 14 installed on the fixing bracket 13; the control device 7 is electrically connected to the power adapter 14 through wires.

[0069] Exemplarily, there are two fixing brackets 13 and two power adapters 14 , and each power adapter 14 is installed on a corresponding fixing bracket 13 , wherein one power adapter 14 is a charging adapter and the other power adapter 14 is a power supply adapter.

[0070] With the help of the fixing bracket 13, the way of assembling the power adapter 14 in the electric cabinet 2 is simplified, the utilization rate of the internal space of the electric cabinet 2 is improved, the stability of the power adapter 14 in the electric cabinet 2 is ensured, and the power adapter 14 is controlled by the control device 7, which helps to improve the utilization rate of the control device 7.

[0071] It should be noted that the installation methods of the fourth support 10 and the fixing bracket 13 are similar to the installation method of the spring pressing device 5, and for the sake of simplicity, they are not repeated here.

[0072] Alternatively, see Figure 1 , Figure 8 and Fig. 9 The projection device 4 includes a sleeve 41 and a projector 42 installed in the sleeve 41, as well as a communication socket 43 and a second power socket 44 respectively installed on the sleeve 41; a second window 411 is provided on the sleeve 41, and the second window 411 is arranged opposite to the projection head of the projector 42, and the sleeve 41 is fixedly connected to the lifting support 31; the projector 42 is electrically connected to the communication socket 43 and the power adapter 14 through a data cable respectively; the electric cabinet 2 is surrounded by the sleeve 41, the control device 7 is electrically connected to the second power socket 44 through an electric wire, and the touch panel 8 is installed outside the sleeve 41.

[0073] Exemplarily, there are three communication sockets 43 , which are respectively a USB socket, an HDMI socket and a USB flash drive socket. The power adapter is electrically connected to the projector 42 to supply power to the projector 42 .

[0074] With the help of the sleeve 41, the projector 42, the communication socket 43, the second power socket 44 and the sleeve 41 are positioned to improve the utilization rate of the sleeve 41. With the help of the second window 411, the light projected by the projector 42 is avoided to prevent the sleeve 41 from interfering with the projection of the projector 42. The control device 7 cooperates with the power adapter 14, the communication socket 43 and the second power socket 44 to ensure the normal operation of the projector 42 and improve the utilization rate of the control device 7.

[0075] Alternatively, see Figure 1 The lifting projector also includes a wire collecting slot 16 installed in the electric cabinet 2. The aforementioned data line and the aforementioned electric wires can be assembled in the wire collecting slot 16 to simplify the circuit. The installation method of the wire collecting slot 16 is similar to the installation method of the spring pressure device 5, which will not be repeated here.

[0076] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A lifting projector, characterized in that: The lifting projector comprises an electric cabinet (2) equipped with a remote control (1), a lifting device (3) installed in the electric cabinet (2), and a projection device (4) fixedly connected to the lifting device (3); the lifting device (3) is used to lift the projection device (4) contained in the electric cabinet (2) to the outside of the electric cabinet (2), and is also used to lower the projection device (4) extending out of the electric cabinet (2) into the electric cabinet (2); the lifting projector also comprises a spring pressing device (5) installed in the electric cabinet (2); the spring pressing device (5) comprises a snap fastener (51), an elastic The elastic bracket (52) comprises a first fixing plate (521), a second fixing plate (522), a connecting rod (523), a spring (524) and a guide pin (525); the first fixing plate (521) and the second fixing plate (522) are arranged in parallel with each other and are spaced relative to each other, and the first fixing plate (521) is slidably engaged in the U-shaped groove (53), and the second fixing plate (522) is embedded in the U-shaped groove (53); a plurality of guide pins (525) are provided, and the plurality of guide pins (525) are The guide pins (525) are vertically inserted into the first fixing plate (521) and the second fixing plate (522), and one end of each of the guide pins (525) is located on the side of the first fixing plate (521) opposite to the second fixing plate (522), and the other end of each of the guide pins (525) is located on the side of the second fixing plate (522) opposite to the first fixing plate (521); each of the guide pins (525) is sleeved with a spring (524), and the spring (524) is fixedly connected to the second fixing plate (522); The connecting rod (523) is provided on a surface of the fixed plate (521) opposite to the second fixed plate (522), and the connecting rod (523) is arranged opposite to the locking member (51), and the locking member (51) is embedded in the second fixed plate (522); when an external force presses the first fixed plate (521) to compress the spring (524), the connecting rod (523) is locked in the locking member (51); when the spring (524) stretches to reset the first fixed plate (521), the connecting rod (523) is released from the locking member (51).

2. The lifting projector according to claim 1, characterized in that: The top of the electric cabinet (2) is provided with an open end (21); the lifting projector further comprises a middle frame (6) embedded in the open end (21) and having two through holes; the remote control (1) is inserted into one of the through holes on the middle frame (6) and the open end (21) in sequence and then detachably fixedly connected with the spring pressing device (5); the lifting device (3) is used to lift the projection device (4) contained in the electric cabinet (2) to the outside of the electric cabinet (2) through the other through hole on the middle frame (6), and is also used to lower the projection device (4) extending out of the electric cabinet (2) into the electric cabinet (2) through the other through hole on the middle frame (6), and the projection device (4) is inserted through the open end (21).

3. The lifting projector according to claim 2, characterized in that: The snap-fitting piece (51) is embedded in the elastic bracket (52), and the elastic bracket (52) is installed in the U-shaped groove body (53); the U-shaped groove body (53) is detachably installed on the inner side wall of the electric cabinet (2); a receiving space is formed between the elastic bracket (52), the U-shaped groove body (53) and the inner side wall of the electric cabinet (2), and the remote control (1) is received in the receiving space; when the elastic bracket (52) is compressed, the elastic bracket (52) is engaged with the snap-fitting piece (51), and the remote control (1) is located inside the electric cabinet (2); when the elastic bracket (52) is extended, the elastic bracket (52) is released from the engagement with the snap-fitting piece (51), and the remote control (1) passes through the opening end (21) and then extends out of the electric cabinet (2) from one of the through holes on the middle frame (6).

4. The lifting projector according to any one of claims 1 to 3, characterized in that: The lifting device (3) comprises a lifting support (31), a sliding rod (32), a synchronous belt (33), a first support (34), a second support (35), a motor (36) and a third support (37); the first support (34), the second support (35) and the third support (37) are all detachably installed in the electric cabinet (2), and the first support (34) and the second support (35) are arranged opposite to each other in an upper and lower direction, and the third support (37) is arranged close to the second support (35); between the first support (34) and the second support (35) The sliding rod (32) is provided, the lifting support (31) is slidably mounted on the sliding rod (32), and the projection device (4) is fixedly mounted on the lifting support (31); the motor (36) is mounted on the third support (37), the synchronous belt (33) is wound around the rotating wheel of the third support (37) through the second support (35), and the synchronous belt (33) is also fixedly connected to the lifting support (31); when the motor (36) rotates forward and reverse, the lifting support (31) is driven by the synchronous belt (33) to move up and down along the sliding rod (32).

5. The lifting projector according to claim 4, characterized in that: The lifting projector further comprises a control device (7) installed in the electric cabinet (2) and a touch panel (8) installed outside the projection device (4); the control device (7) is electrically connected to the touch panel (8) and the motor (36) respectively, and when the touch panel (8) is touched, the control device (7) is adapted to be connected to the touch panel (8) and the motor (36) to drive the rotating wheel of the motor (36) to rotate forward or reverse.

6. The lifting projector according to claim 5, characterized in that: The lifting projector further comprises a limit switch (9) mounted on the lifting support (31); the control device (7) is electrically connected to the limit switch (9); when the lifting support (31) reaches a preset position, the control device (7) is adapted to be connected to the limit switch (9) to control the rotating wheel of the motor (36) to stop rotating.

7. The lifting projector according to claim 5, characterized in that: The electrical cabinet (2) is provided with a first window (22); the lifting projector further comprises a fourth support (10) mounted at the first window (22), and an audio socket (11) and a first power socket (12) respectively mounted in the fourth support (10); the control device (7) is electrically connected to the audio socket (11) and the first power socket (12) respectively.

8. The lifting projector according to claim 5, characterized in that: The lifting projector further comprises a fixing bracket (13) installed in the electrical cabinet (2) and a power adapter (14) installed on the fixing bracket (13); the control device (7) is electrically connected to the power adapter (14).

9. The lifting projector according to claim 8, characterized in that: The projection device (4) comprises a sleeve (41) and a projector (42) installed in the sleeve (41), and a communication socket (43) and a second power socket (44) respectively installed on the sleeve (41); a second window (411) is provided on the sleeve (41), and the second window (411) is arranged opposite to a projection head of the projector (42); the sleeve (41) is fixedly connected to the lifting support (31); the projector (42) is electrically connected to the communication socket (43) and the power adapter (14) respectively; the electric cabinet (2) surrounds the outside of the sleeve (41), the control device (7) is electrically connected to the second power socket (44), and the touch panel (8) is installed outside the sleeve (41).

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