Multifunctional bullet train teaching projection equipment

Abstract

The utility model discloses a multifunctional bullet train teaching projection device which comprises a projection machine body, a projection head is arranged in the center of the front end of the projection machine body, the center of the upper end of the projection machine body is fixedly connected with a connecting base through a bolt assembly, and the center of the upper end of the connecting base is fixedly connected with a position adjusting rotating rod. The outer portion of the upper end of the position adjusting rotary rod is sleeved with a fixing rotary sleeve, a position adjusting telescopic chamber with a forward opening penetrates through the interior of the center of the front end of the projector body in the vertical direction, the projection head is located in the position adjusting telescopic chamber, and the rear end of the position adjusting telescopic chamber communicates with a limiting telescopic chamber. According to the invention, the design of the projection head allows the projection head to be retracted into the machine body when not in use and to be rapidly unfolded when in use, and fine angle adjustment is carried out through the limiting rotating shaft and the limiting extrusion head, so that the operation convenience and adaptability of the equipment are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to EMU teaching equipment, and particularly relates to a multifunctional EMU teaching projection device. Background Art

[0002] In the traditional EMU teaching and training process, it often relies on static drawings, manuals or fixed displays to show the structure and operation principle of the EMU unit. This way has certain limitations, such as the information presentation is not intuitive enough, the interactivity is poor, and it is difficult to simulate the real EMU operation environment, etc., resulting in low efficiency for trainees to understand and master relevant knowledge. With the progress of technology and the improvement of personal learning needs, the traditional teaching means are difficult to meet the needs of modern EMU crew training.

[0003] To solve the above problems and improve the teaching and training effect, this patent proposes a new type of multifunctional EMU teaching projection device. The device adopts advanced projection technology and can, in the interior of the EMU car body or a specific teaching environment, display the internal structure and working principle of the EMU unit in real time and dynamically, providing trainees with an immersive learning experience. Through panoramic projection technology, trainees can observe and analyze each component of the EMU and its interaction without dead angles in 360 degrees, greatly improving the intuitiveness and interactivity of learning.

[0004] In addition, the device also has high flexibility and adjustability. Through designs such as a connection base, an adjustment rotation rod and a fixed rotation sleeve, the projection device can be stably installed on the roof of the EMU or other suitable positions and can adjust the projection direction according to actual needs. The designs of the adjustment telescopic chamber and the limit telescopic chamber enable the projection head to work at different distances and angles, meeting the teaching needs of different scenarios. The innovative combination of the power supply base and the card connector ensures the stable power supply and position fixation of the projection head, while realizing quick disassembly and assembly and energy-saving operation.

[0005] In summary, the multifunctional EMU teaching projection device of this patent effectively solves the problems existing in traditional EMU teaching by integrating a variety of innovative technologies and design concepts, and provides a new solution for the training of EMU crew. The research and development and application of this device will greatly improve the quality and efficiency of EMU teaching and are of great significance for cultivating high-quality EMU crew talents. Content of the Utility Model

[0006] The purpose of the utility model is to provide a multifunctional EMU teaching projection device to solve the problem that in the traditional EMU teaching, it is shown through static drawings, manuals or fixed displays, and the information presentation is not intuitive enough.

[0007] To achieve the above object, the utility model provides the following technical solutions: A multifunctional EMU teaching projection device, including a projection body, a projection head is arranged inside the center of the front end of the projection body, a connection base is fixedly connected to the center of the upper end of the projection body through a bolt assembly, an adjustment rotation rod is fixedly connected to the center of the upper end of the connection base, and a fixed rotation sleeve is sleeved outside the upper end of the adjustment rotation rod.

[0008] Preferably, an adjustment telescopic chamber with an opening forward is vertically penetrated inside the center of the front end of the projection body, and the projection head is located inside the adjustment telescopic chamber. The rear end of the adjustment telescopic chamber communicates with a limit telescopic chamber, and the limit telescopic chamber is opened inside the projection body. A limit rotating shaft is clamped inside the limit telescopic chamber, and the limit rotating shaft is fixedly connected to the rear end of the projection head.

[0009] Preferably, limit guide blocks are arranged inside the joints at the left and right ends of the adjustment telescopic chamber and the limit telescopic chamber, and both limit guide blocks are located inside the projection body. Limit card slots are opened inside the rear sides of the two limit guide blocks near one end of the limit rotating shaft, and the two limit card slots are respectively located inside the left and right ends of the limit telescopic chamber.

[0010] Preferably, power bases are arranged inside the front sides of the inner walls at the left and right ends of the two limit guide blocks, and the two power bases are respectively located inside the left and right ends of the adjustment telescopic chamber. One end of the two power bases away from the adjustment telescopic chamber is connected to the inside of the projection body through a connecting wire, and rotation card slots with the same size as the limit card slots are opened inside the centers of the two power bases near one end of the limit rotating shaft.

[0011] Preferably, clamping heads are elastically connected to the inside of the left and right ends of the limit rotating shaft through clamping springs, and the two clamping heads are connected to the inside of the limit rotating shaft through wire harnesses. The two clamping heads can be clamped with the two limit card slots and the rotation card slots inside the two power bases through the clamping springs, and can be clamped and converted between the two limit card slots and the rotation card slots inside the two power bases by sliding back and forth.

[0012] Preferably, limit extrusion heads are elastically connected to the inside of the front sides of the inner walls at the left and right ends of the adjustment telescopic chamber through limit springs, and the two limit extrusion heads can be attached to the outer walls of the left and right ends of the projection head respectively through the limit springs.

[0013] Preferably, the fixed rotation sleeve is sleeved outside the upper end of the adjustment rotation rod through an adjustment rotation hole, and the adjustment rotation hole is opened inside the center of the lower end of the fixed rotation sleeve. A limit ring is fixedly connected to the upper end of the adjustment rotation rod.

[0014] Preferably, an azimuth spring is provided at the upper end of the limit ring, and both the position adjustment rotary rod and the limit ring are elastically connected inside the position adjustment rotary hole through the azimuth spring. A limit tooth groove is formed inside the outer side of the inner wall at the lower end of the position adjustment rotary hole, and the limit ring can be closely attached to the limit tooth groove through the azimuth spring.

[0015] Compared with the prior art, the present utility model provides a multifunctional teaching projection device for bullet trains, which has the following beneficial effects:

[0016] 1. Application of panoramic projection technology: Through a high-resolution projection head, a comprehensive display of the bullet train unit structure is realized, enabling trainees to intuitively observe and understand complex mechanical structures and operation processes.

[0017] 2. Flexible installation and adjustment system: By using the connection base, position adjustment rotary rod, and fixed rotary sleeve, while ensuring the stable installation of the device, convenient adjustment of the projection direction is provided to meet the needs of different teaching scenarios. Through the precise design of the azimuth spring and the limit tooth groove, high-precision adjustment and locking of the projection direction are achieved, ensuring the accurate projection of the projection screen.

[0018] 3. Convenient projection head telescoping and angle adjustment: The design of the projection head allows it to retract into the body of the machine when not in use and quickly expand when in use, and fine adjustment of the angle is carried out through the limit rotating shaft and the limit pressing head, improving the operation convenience and adaptability of the device.

[0019] 4. Intelligent power supply and positioning mechanism: The combination of the power supply base and the card joint enables the device to automatically cut off power when not working and quickly start when working. It not only ensures stable power supply for the projection head but also realizes automatic positioning and fixation of the projection head through the design of the limit guide block and the limit card slot, saving energy, improving operation efficiency, and enhancing the reliability and safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional structural schematic diagram of the projection device of the present utility model.

[0021] Figure 2 is a three-dimensional sectional structural schematic diagram of the projection device of the present utility model.

[0022] Figure 3 is an exploded schematic diagram of the projection device of the present utility model.

[0023] Figure 4 is of the present utility model Figure 3 enlarged schematic diagram at A in

[0024] Figure 5 is of the present utility model Figure 3 enlarged schematic diagram at B in

[0025] Figure 6 For the present utility model Figure 3 The enlarged schematic view at position C in

[0026] Figure 7 For the present utility model Figure 3 The enlarged schematic view at position D in

[0027] In the figure: 1, projection fuselage; 2, projection head; 3, connection base; 4, position adjustment screw rod; 5, fixed sleeving; 6, position adjustment telescopic chamber; 7, limit telescopic chamber; 8, limit rotating shaft; 9, limit guide block; 10, limit card slot; 11, power supply base; 12, clamping spring; 13, clamping head; 14, limit spring; 15, limit extrusion head; 16, position adjustment rotating hole; 17, limit ring; 18, azimuth spring; 19, limit tooth groove. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] The present utility model provides a multifunctional Figures 1-7 shown high-speed train teaching projection device, including a projection fuselage 1, a projection head 2 is arranged inside the center of the front end of the projection fuselage 1, a connection base 3 is fixedly connected to the center of the upper end of the projection fuselage 1 through a bolt assembly, a position adjustment screw rod 4 is fixedly connected to the center of the upper end of the connection base 3, a fixed sleeving 5 is sleeved outside the upper end of the position adjustment screw rod 4. Among them, a high-definition projection lens is adopted inside the projection head 2, the projection fuselage 1 is connected to the fixed sleeving 5 through the connection base 3 and the position adjustment screw rod 4, and is connected to the roof of the high-speed train through the connection seat at the top of the fixed sleeving 5, and the projection fuselage 1 performs panoramic projection through the projection head 2 at the center of the front end, so that the high-speed train crew can more intuitively understand the structure and principle of the high-speed train unit through the projection device, and can perform training and learning more efficiently.

[0030] Preferably, a position-adjusting telescopic chamber 6 with an opening facing forward runs through the upper and lower parts of the center inside the front end of the projection body 1, and the projection head 2 is located inside the position-adjusting telescopic chamber 6. The rear end of the position-adjusting telescopic chamber 6 communicates with a limit telescopic chamber 7, and the limit telescopic chamber 7 is opened inside the projection body 1. A limit rotating shaft 8 is clamped inside the limit telescopic chamber 7, and the limit rotating shaft 8 is fixedly connected to the rear end of the projection head 2. The projection head 2 is clamped at the front end of the limit telescopic chamber 7 through the limit rotating shaft 8 and is located inside the position-adjusting telescopic chamber 6. Since the limit rotating shaft 8 is composed of a rotating cylinder at the rear end and a limit clamping block at the front end, the limit telescopic chamber 7 can limit the position of the limit rotating shaft 8 through the limit clamping block, thereby restricting the position of the projection head 2 and preventing the projection head 2 from moving inside the position-adjusting telescopic chamber 6.

[0031] Preferably, limit guide blocks 9 are arranged inside the joints at the left and right ends of the position-adjusting telescopic chamber 6 and the limit telescopic chamber 7, and both limit guide blocks 9 are located inside the projection body 1. Limit card slots 10 are opened inside the rear sides of one ends of the two limit guide blocks 9 close to the limit rotating shaft 8, and the two limit card slots 10 are respectively located inside the left and right ends of the limit telescopic chamber 7. Power bases 11 are arranged inside the front sides of one ends of the two limit guide blocks 9 close to the limit rotating shaft 8, and the two power bases 11 are respectively located inside the left and right ends of the position-adjusting telescopic chamber 6. Rotating card slots with the same size as the limit card slots 10 are opened at the centers of one ends of the two power bases 11 close to the limit rotating shaft 8, so that the limit rotating shaft 8 can limit its position by being clamped with the two limit card slots 10 through the card joints 13 elastically connected by clamping springs 12 inside the left and right ends, thereby stably fixing the projection head 2 inside the position-adjusting telescopic chamber 6. Since the limit guide blocks 9 are made of insulating materials, when the position of the limit rotating shaft 8 is restricted by the two limit card slots 10, the projection head 2 is not connected to the inside of the projection body 1.

[0032] Preferably, when the projection head 2 is pulled outwards, the card joints 13 inside the left and right ends of the limit rotating shaft 8 can be unclamped from the two limit card slots 10 and slide on the outer walls of the limit guide blocks 9. When the card joints 13 slide between the rotating card slots inside the centers of the two power bases 11, the two card joints 13 will be clamped inside the two rotating card slots. At the same time, the front end of the projection head 2 protrudes out of the front end of the projection body 1. At this time, since the two card joints 13 are connected to the inside of the limit rotating shaft 8 through wire harnesses, and the ends of the two power bases 11 far from the position-adjusting telescopic chamber 6 are connected to the inside of the projection body 1 through connecting wires, the projection body 1 can be connected to the projection head 2 through the power bases 11 and the card joints 13, thereby powering on the projection head 2 for panoramic projection and enabling the adjustment of the projection angle through the rotation of the limit rotating shaft 8. The limit rotating shaft 8 can rotate between the two power bases 11 through the card joints 13 at both ends and rotate inside the intersection of the position-adjusting telescopic chamber 6 and the limit telescopic chamber 7, and the rotation can be restricted by the limit rotating block.

[0033] Preferably, since the front sides of the inner walls at both the left and right ends of the position-adjustable telescopic chamber 6 are elastically connected with position-limiting extrusion heads 15 through position-limiting springs 14, the two position-limiting extrusion heads 15 can be respectively attached to the outer walls at both the left and right ends of the projection head 2 through the position-limiting springs 14. Therefore, the projection head 2 can limit its rotation position through the position-limiting extrusion heads 15, enabling the projection head 2 to project stably.

[0034] Preferably, when the projection head 2 and the position-limiting rotating shaft 8 are pushed backward, the clamping joint 13 is separated from the power supply base 11, disconnecting the connection between the projection body 1 and the projection head 2, allowing the projection head 2 to retract into the position-adjustable telescopic chamber 6 at the front end of the projection body 1 when not in use and disconnecting the power supply. When the projection head 2 and the position-limiting rotating shaft 8 are pulled forward, the projection head 2 and the position-limiting rotating shaft 8 can be pulled out from the inside of the position-adjustable telescopic chamber 6 and the power supply can be connected for projection, and the projection angle can be adjusted by rotating the position-limiting rotating shaft 8, and the adjusted projection angle can be restricted by the position-limiting extrusion head 15, which can not only make the projection device more energy-saving in use, but also make the projection angle of the projection device more convenient and quick to adjust.

[0035] Preferably, the fixed rotating sleeve 5 is sleeved outside the upper end of the position-adjustable rotating rod 4 through the position-adjusting rotating hole 16, and the position-adjusting rotating hole 16 is opened inside the center of the lower end of the fixed rotating sleeve 5. A position-limiting ring 17 is fixedly connected to the upper end of the position-adjustable rotating rod 4, and a direction spring 18 is arranged above the position-limiting ring 17. Both the position-adjustable rotating rod 4 and the position-limiting ring 17 are elastically connected inside the position-adjusting rotating hole 16 through the direction spring 18. A position-limiting tooth groove 19 is opened inside the outer side of the inner wall at the lower end of the position-adjusting rotating hole 16. The position-limiting ring 17 can be closely attached to the position-limiting tooth groove 19 through the direction spring 18, enabling the projection device to adjust the projection direction by pushing upward and rotating, and the position of the position-adjustable rotating rod 4 can be restricted by the position-limiting ring 17 and the position-limiting tooth groove 19 with respect to the fixed rotating sleeve 5, thereby restricting the projection direction of the projection device.

[0036] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A multifunctional projection device for motor vehicle teaching, characterized in that: The projection device comprises a projection body (1), wherein a projection head (2) is arranged at the center of the front end of the projection body (1), a connection base (3) is fixedly connected to the center of the upper end of the projection body (1) via a bolt assembly, a position adjustment rotary rod (4) is fixedly connected to the center of the upper end of the connection base (3), and a fixed rotary sleeve (5) is sleeved on the outer portion of the upper end of the position adjustment rotary rod (4).

2. The multifunctional projection device for motor vehicle teaching according to claim 1 is characterized in that: A position adjustment telescopic chamber (6) with an opening facing forward is penetrated vertically in the center of the front end of the projection body (1), and the projection head (2) is located inside the position adjustment telescopic chamber (6). The rear end of the position adjustment telescopic chamber (6) is connected to a position limiting telescopic chamber (7), and the position limiting telescopic chamber (7) is arranged inside the projection body (1). A position limiting rotating shaft (8) is clamped inside the position limiting telescopic chamber (7), and the position limiting rotating shaft (8) is fixedly connected to the rear end of the projection head (2).

3. The multifunctional projection device for motor vehicle teaching according to claim 2 is characterized in that: A limiting guide block (9) is provided inside the connection between the left and right ends of the position adjustment telescopic chamber (6) and the limiting telescopic chamber (7), and the two limiting guide blocks (9) are both located inside the projection body (1). A limiting card slot (10) is provided inside the rear side of one end of the two limiting guide blocks (9) close to the limiting rotating shaft (8), and the two limiting card slots (10) are respectively located inside the left and right ends of the limiting telescopic chamber (7).

4. The multifunctional projection device for motor vehicle teaching according to claim 3 is characterized in that: A power base (11) is provided inside the front side of one end of the two limiting guide blocks (9) close to the limiting rotating shaft (8), and the two power bases (11) are respectively located inside the left and right ends of the positioning telescopic chamber (6), and the ends of the two power bases (11) away from the positioning telescopic chamber (6) are connected to the inside of the projector body (1) through connecting wires, and a rotating slot of the same size as the limiting slot (10) is opened inside the center of one end of the two power bases (11) close to the limiting rotating shaft (8).

5. The multifunctional projection device for motor vehicle teaching according to claim 4 is characterized in that: The left and right ends of the limit rotating shaft (8) are elastically connected to a clamping joint (13) via a clamping spring (12), and the two clamping joints (13) are connected to the inside of the limit rotating shaft (8) via a wiring harness. The two clamping joints (13) can be clamped with the two limit clamping grooves (10) and the rotating clamping grooves inside the two power bases (11) via the clamping spring (12), and can be clamped and switched between the two limit clamping grooves (10) and the rotating clamping grooves inside the two power bases (11) by sliding forward and backward.

6. The multifunctional projection device for motor vehicle teaching according to claim 5 is characterized in that: The front sides of the inner walls at both ends of the position adjustment telescopic chamber (6) are elastically connected to the limit extrusion heads (15) via limit springs (14); the two limit extrusion heads (15) can respectively fit with the outer walls at both ends of the projection head (2) via the limit springs (14).

7. The multifunctional projection device for motor vehicle teaching according to claim 1 is characterized in that: The fixed rotary sleeve (5) is sleeved on the outside of the upper end of the position adjusting rotary rod (4) through the position adjusting rotary hole (16), and the position adjusting rotary hole (16) is arranged inside the center of the lower end of the fixed rotary sleeve (5), and the upper end of the position adjusting rotary rod (4) is fixedly connected to a limiting ring (17).

8. The multifunctional projection device for motor vehicle teaching according to claim 7 is characterized in that: An orientation spring (18) is arranged at the upper end of the limiting ring (17), and the adjusting rotary rod (4) and the limiting ring (17) are elastically connected to the inside of the adjusting rotating hole (16) through the orientation spring (18). A limiting tooth groove (19) is arranged inside the outer side of the inner wall at the lower end of the adjusting rotating hole (16), and the limiting ring (17) can be tightly fitted with the limiting tooth groove (19) through the orientation spring (18).

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