Adjustable projection device for classroom

Abstract

The adjustable projection device comprises a protective shell, a mounting plate and a projector, the bottom of the protective shell is provided with a cavity for accommodating the projector, one end of the mounting plate is rotatably connected with the bottom of the protective shell, the protective shell is provided with an overturning mechanism, the mounting plate is provided with a rotating mechanism, and the rotating mechanism is connected with the overturning mechanism. Good physical protection can be provided for the projector through the protective shell and the cavity, damage to the projector caused by external factors such as dust and collision is effectively prevented, the position and direction of the projector can be adjusted through cooperative use of the turnover mechanism and the rotating mechanism, and the projector is convenient to use. The projection requirements of different angles and positions are met, and the flexibility and convenience of projection are improved.

Description

Technical Field

[0001] The present application relates to the technical field, and in particular to an adjustable projection device for classrooms. Background Art

[0002] In the modern educational environment, projection equipment has become an indispensable teaching aid in the classroom. However, traditional classroom projection devices often have some problems, especially in terms of projector protection and dust prevention. Traditional projection devices usually expose the projector directly to the external environment, leaving the projector exposed to the outside without any effective dust prevention measures.

[0003] Due to the particularity of the classroom environment, such as frequent student activities and high dust content, the projector is directly installed on the classroom roof and is exposed to the outside. Dust will accumulate on the projector shell, especially at the heat dissipation holes of the projector. This dust will not only affect the heat dissipation performance of the projector, causing the projector to overheat or even damage, but also affect the clarity and color performance of the projected image, thereby affecting the teaching quality.

[0004] In addition, the projector is exposed to the outside and is vulnerable to accidental collision or human damage, further increasing the cost of repair and replacement.

[0005] In view of the above problems, an adjustable projection device for classroom is now designed. Utility Model Content

[0006] The embodiment of the present application provides an adjustable projection device for classroom use, so as to solve the problem in the related art that the projector is directly exposed to the external environment, and the whole is exposed to the outside and easily accumulates dust, which affects the heat dissipation performance and use effect of the projector.

[0007] In a first aspect, an adjustable projection device for a classroom is provided, comprising:

[0008] A protective housing, a mounting plate and a projector, wherein the bottom of the protective housing has a chamber for accommodating the projector, one end of the mounting plate is rotatably connected to the bottom of the protective housing, and a flip mechanism is provided on the protective housing, and the flip mechanism is rotatably connected to the other end of the mounting plate to drive the other end of the mounting plate to flip and close the chamber;

[0009] The mounting plate is provided with a rotating mechanism, which is connected to the projector and is used to drive the projector to rotate.

[0010] In some embodiments, two hinges are relatively disposed at one end of the interior of the chamber, one end of the mounting plate is hingedly disposed between the two hinges, and the mounting plate is adapted to the chamber.

[0011] In some embodiments, the flipping mechanism includes two driving motors relatively arranged on the protective shell, two rotating shafts 1 are relatively rotated inside the chamber, the output shaft of the driving motor is connected to one end of an adjacent rotating shaft 1, a first hinged rod is provided at the other end of the rotating shaft 1, a rotating shaft 2 is provided at the other end of the first hinged rod, a second hinged rod is hinged on the outer side of the rotating shaft 2, and the other end of the second hinged rod is hinged to the mounting plate.

[0012] In some embodiments, the rotating mechanism includes support seats relatively arranged on the mounting plate, and a driving motor 2 is arranged on any of the support seats. A rotating shaft 3 is rotatably connected between the two support seats, a transmission rod is arranged on the outer side of the rotating shaft 3, and the other end of the transmission rod is connected to the projector, and the output shaft of the driving motor 2 is connected to the end of the rotating shaft 3.

[0013] In some embodiments, a protective mechanism is further included, wherein the protective mechanism includes a protective baffle plate relatively disposed on the mounting plate, and a soft pad disposed on the mounting plate, and the projector abuts against the soft pad.

[0014] In some embodiments, an auxiliary support mechanism is further included, and the auxiliary support mechanism includes two tension springs and two connecting seats, the two connecting seats are arranged opposite to each other on the mounting plate, and the two ends of the tension spring are respectively connected to the connecting seat and the hinge.

[0015] In some embodiments, a connecting mechanism is further included, wherein the connecting mechanism includes a connecting plate arranged on the top of the protective shell, and a mounting buckle arranged on the side wall of the protective shell.

[0016] The embodiment of the present application provides an adjustable projection device for classroom use, which provides good physical protection for the projector through a protective shell and a chamber, effectively preventing damage to the projector by external factors such as dust and collision, and extending its service life.

[0017] By using the flipping mechanism and the rotating mechanism in coordination, the position and direction of the projector can be adjusted to meet the projection requirements at different angles and positions, thereby improving the flexibility and convenience of projection. Moreover, when the projector is not in use, the mounting plate can be flipped back to its original position and the projector can be completely stored inside the protective casing, making the classroom look neater and more beautiful as a whole.

[0018] In addition, the operation of the device is simple and easy to understand. Users can store, open and adjust the projector through simple operations without complicated operating steps and tools, which improves the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 Schematic diagram of the three-dimensional structure provided in the embodiment of the present application Figure 1 ;

[0021] Figure 2 Schematic diagram of the three-dimensional structure provided in the embodiment of the present application Figure 2 ;

[0022] Figure 3 Schematic diagram of the three-dimensional structure provided in the embodiment of the present application Figure 3 ;

[0023] Figure 4 A three-dimensional schematic diagram of the hinge and mounting plate connection structure provided in an embodiment of the present application;

[0024] Figure 5 A three-dimensional schematic diagram of the flipping mechanism provided in an embodiment of the present application.

[0025] In the figure: 1. protective shell; 2. mounting plate; 3. projector; 4. chamber; 5. flip mechanism; 51. drive motor; 52. rotating shaft one; 53. first hinge rod; 54. rotating shaft two; 55. second hinge rod; 6. rotating mechanism; 61. support seat; 62. drive motor two; 63. rotating shaft three; 64. transmission rod; 7. protective mechanism; 71. protective partition; 72. cushion; 8. auxiliary support mechanism; 81. tension spring; 82. connecting seat; 9. connecting mechanism; 91. connecting plate; 92. mounting buckle; 10. hinge. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0027] The embodiment of the present application provides an adjustable projection device for classrooms, which can solve the problem in the related art that the projector is directly exposed to the external environment, and the entire projector is exposed to the outside and easily accumulates dust, which affects the heat dissipation performance and use effect of the projector.

[0028] See also Figure 1-Figure 3An adjustable projection device for classroom use comprises: a protective shell 1, a mounting plate 2 and a projector 3, wherein the bottom of the protective shell 1 has a chamber 4 for accommodating the projector 3, one end of the mounting plate 2 is rotatably connected to the bottom of the protective shell 1, and a flip mechanism 5 is arranged on the protective shell 1, and the flip mechanism 5 is rotatably connected to the other end of the mounting plate 2 for driving the other end of the mounting plate 2 to flip and close the chamber 4; a rotating mechanism 6 is arranged on the mounting plate 2, and the rotating mechanism 6 is connected to the projector 3 and is used to drive the projector 3 to rotate.

[0029] When the projector 3 is not in use, the chamber 4 at the bottom of the protective housing 1 is used to accommodate and protect the projector 3;

[0030] When the projector needs to be used, the flip mechanism 5 is controlled to flip the other end of the mounting plate 2 downward from the protective shell 1, thereby opening the chamber 4 and exposing the projector 3. The projector 3 is installed on the mounting plate 2 and connected thereto through the rotating mechanism 6. The rotating mechanism 6 controls the projector 3 to rotate in a horizontal plane. The projection direction of the projector can be adjusted as needed to ensure that the projection content can be accurately projected onto the classroom screen.

[0031] After use, the other end of the mounting plate 2 is flipped back to its original position by operating the flip mechanism 5 again, the chamber 4 is sealed, and the projector 3 is stored back into the protective housing 1 to protect it from damage by external factors such as dust and collision.

[0032] In summary, the protective housing 1 and the chamber 4 provide good physical protection for the projector 3, effectively preventing damage to the projector caused by external factors such as dust and collision, and extending its service life.

[0033] By using the flipping mechanism 5 and the rotating mechanism 6 in coordination, the position and direction of the projector can be adjusted to meet the projection requirements at different angles and positions, thereby improving the flexibility and convenience of projection. Moreover, when the projector is not in use, the mounting plate 2 can be flipped back to its original position, and the projector can be completely stored inside the protective shell 1, making the classroom as a whole look more tidy and beautiful.

[0034] In addition, the operation of the device is simple and easy to understand. Users can store, open and adjust the projector through simple operations without complicated operating steps and tools, which improves the convenience of use.

[0035] Specifically, in the present embodiment, two hinges 10 are relatively disposed at one end of the interior of the chamber 4 , one end of the mounting plate 2 is hingedly disposed between the two hinges 10 , and the mounting plate 2 is adapted to the chamber 4 .

[0036] The relative arrangement of the two hinges 10 ensures the stability of the mounting plate 2 during the turning process. They provide the necessary support and rotation points so that the mounting plate 2 can be reliably converted between different angles.

[0037] Driven by the flipping mechanism 5, the mounting plate 2 rotates around the two hinges 10. Since the mounting plate 2 is compatible with the chamber 4, the rotation process will proceed smoothly, so that the mounting plate 2 is gradually flipped out of the chamber 4 until the projector 3 is completely exposed to the outside.

[0038] Specifically, the flipping mechanism 5 in this embodiment includes two driving motors 51 relatively arranged on the protective shell 1, and two rotating shafts 52 are relatively rotated inside the chamber 4, the output shaft of the driving motor 51 is connected to one end of the adjacent rotating shaft 52, and the other end of the rotating shaft 52 is provided with a first hinge rod 53, the other end of the first hinge rod 53 is fixedly connected to the rotating shaft 2 54, the outer side of the rotating shaft 2 54 is hinged with a second hinge rod 55, and the other end of the second hinge rod 55 is hinged to the mounting plate 2.

[0039] Among them, a fixing seat is relatively arranged on the mounting plate 2, and the other end of the second hinged rod 55 is hinged to the corresponding fixing seat.

[0040] When the projector 3 is not in use, the mounting plate 2 is in a position parallel to the bottom of the protective housing 1, and the projector 3 is completely stored inside the chamber 4. At this time, the two driving motors 51 are both in a stationary state and do not generate driving force.

[0041] When the projector 3 needs to be used, the user starts the flipping mechanism 5, and the two driving motors 51 start working. Their output shafts respectively drive the adjacent rotating shaft 1 52 to rotate. The rotation of rotating shaft 1 52 causes the first hinge rod 53 to move accordingly. Since the other end of the first hinge rod 53 is fixedly connected to the rotating shaft 2 54, the rotating shaft 2 54 will also rotate with the movement of the first hinge rod 53. The outer side of the rotating shaft 2 54 is hinged with a second hinge rod 55. When the rotating shaft 2 54 rotates, the second hinge rod 55 will form a lever effect between the hinge point of the rotating shaft 2 54 and the mounting plate 2, thereby pushing the mounting plate 2 to rotate around the hinge 10 between it and the inside of the chamber 4. Fixed seats are relatively arranged on the mounting plate 2, and the other end of the second hinge rod 55 is hinged to these fixed seats, ensuring the stability and reliability of the mounting plate 2 during the flipping process. As the two driving motors 51 continue to work, the mounting plate 2 is gradually flipped out of the chamber 4 until the projector 3 is completely exposed to the outside.

[0042] After use, the user can control the two driving motors 51 to rotate in the opposite direction, so that the mounting plate 2 can be flipped back into the chamber 4 along the hinge 10, so as to store the projector 3 again.

[0043] Specifically, the rotating mechanism 6 in this embodiment includes a support seat 61 relatively arranged on the mounting plate 2, and a driving motor 2 62 is arranged on any of the support seats 61. A rotating shaft 3 63 is rotatably connected between the two support seats 61, and a transmission rod 64 is arranged on the outer side of the rotating shaft 3 63. The other end of the transmission rod 64 is connected to the projector 3, and the output shaft of the driving motor 2 62 is connected to the end of the rotating shaft 3 63.

[0044] When the projection direction of the projector 3 needs to be adjusted, the drive motor 2 62 is started. When the drive motor 2 62 is started, the shaft 3 63 is driven to rotate. The rotation of the shaft 3 63 is transmitted to the projector 3 through the transmission rod 64, so that the projector 3 rotates around the shaft 3 63 as the axis. By controlling the rotation direction and speed of the drive motor 2 62, the rotation angle and direction of the projector 3 are controlled, thereby adjusting the projection direction.

[0045] It should be noted that in this embodiment, the user can control the rotation direction and speed of the two drive motors 51 and the drive motor 2 62 through a control panel, a remote control or other means, thereby achieving precise control of the flipping of the mounting plate 2 and precise control of the rotation angle and direction of the projector 3. This is the prior art and will not be elaborated here.

[0046] Preferably, the present embodiment further comprises a protection mechanism 7 , wherein the protection mechanism 7 comprises a protection partition plate 71 arranged relatively on the mounting plate 2 , and a soft pad 72 arranged on the mounting plate 2 , and the projector 3 abuts against the soft pad 72 .

[0047] The protection mechanism 7 is intended to provide additional protection to ensure the safe and stable operation of the projector 3 .

[0048] The protective baffles 71 are relatively arranged on the mounting plate 2, usually located on both sides or above the projector 3, and are used to prevent external objects or dust from directly contacting the projector 3, thereby playing a role of physical isolation.

[0049] The cushion 72 is usually made of a soft and elastic material, such as rubber or silicone, to reduce the impact and vibration that the projector 3 may experience during flipping or moving.

[0050] When the mounting plate 2 is in a closed state, that is, the projector 3 is housed inside the chamber 4, the protective baffle 71 and the soft cushion 72 together provide all-round protection for the projector 3. The protective baffle 71 prevents external objects from entering the chamber 4, while the soft cushion 72 ensures that the projector 3 will not be damaged when subjected to a slight impact.

[0051] When the user needs to use the projector 3, the mounting plate 2 will drive the projector 3 to flip out of the chamber 4 through the operation of the flipping mechanism 5. During this process, the protective baffle 71 will move with the movement of the mounting plate 2, and always remain on both sides or above the projector 3 to provide continuous protection. Once the projector 3 is completely flipped out, the cushion 72 will continue to provide stable support for the projector 3 during the entire process and reduce possible vibrations and impacts.

[0052] In another embodiment, a sponge pad is disposed inside the chamber 4 , and a groove matching the projector 3 is disposed at the bottom of the sponge pad.

[0053] The sponge pad is laid on the bottom or inner wall of the chamber 4 . The sponge pad is soft and elastic and can effectively absorb shock and vibration to prevent the projector 3 from being damaged during storage or movement.

[0054] A groove that matches the shape and size of the projector 3 is designed at the bottom of the sponge pad. The function of this groove is to provide a precise positioning and fixing point for the projector 3, ensuring that the projector 3 can be firmly placed in the chamber 4 when stored and is not easy to shake or move.

[0055] As a preferred embodiment, the present embodiment further includes an auxiliary support mechanism 8, the auxiliary support mechanism 8 includes two tension springs 81 and two connection seats 82, the two connection seats 82 are relatively arranged on the mounting plate 2, and the two ends of the tension spring 81 are respectively connected to the connection seat 82 and the hinge 10;

[0056] The connecting seat 82 is located at an end of the mounting plate 2 away from the hinge 10 .

[0057] The auxiliary support mechanism 8 is used to provide additional support force when the projector 3 is turned out, so as to ensure that the projector 3 can stay stably at a desired angle and reduce sagging caused by gravity.

[0058] When the user flips out the mounting plate 2 and the projector 3 together through the flipping mechanism 5, the tension spring 81 starts to work. Since one end of the tension spring 81 is connected to the connecting seat 82, and the other end is connected to the hinge 10 or a similar fixed point, the tension spring 81 will be stretched and generate an upward supporting force. When the projector 3 is flipped out to the desired angle, the supporting force of the tension spring 81 will help the projector 3 to stay stably at this angle.

[0059] Since the projector 3 itself may have a certain weight, especially after being turned out, its front end may sag due to gravity, and the supporting force of the tension spring 81 can effectively offset this sagging trend, ensuring that the projector 3 can maintain a stable and stable projection state.

[0060] It is understandable that by adjusting the stretching degree and connection mode of the tension spring 81 , the size of the supporting force can be controlled to adapt to projectors 3 of different angles and weights.

[0061] In this embodiment, a connection point for fixing the tension spring 81 is provided on the hinge 10 . It should also be noted that the connection point for fixing the tension spring 81 may also be provided inside the protective housing 1 .

[0062] It should be noted that the present embodiment also includes a connecting mechanism 9 , which includes a connecting plate 91 arranged on the top of the protective shell 1 , and a mounting buckle 92 arranged on the side wall of the protective shell 1 .

[0063] The connection plate 91 is disposed on the top of the protective housing 1 and is generally a flat disc-shaped structure with mounting holes. These mounting holes allow the projection device to be fixed to a wall, a ceiling or other fixed surfaces using bolts, screws or other fasteners.

[0064] The mounting buckle 92 is located on the side wall of the protective housing 1 and is designed for quick and convenient connection with other devices or structures. The mounting buckle 92 may adopt a hook, a snap or other form of interface to facilitate use with a suspension system, a mobile bracket or other accessories.

[0065] The introduction of the connection mechanism 9 makes the application scenarios of the projection device more extensive and flexible. Whether it is fixed installation, hanging installation or mobile installation, the user can choose a suitable installation method according to actual needs to ensure that the projection device can work stably and reliably.

[0066] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0067] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0068] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. An adjustable projection device for classroom use, characterized in that: include: A protective housing (1), a mounting plate (2) and a projector (3), wherein the bottom of the protective housing (1) has a chamber (4) for accommodating the projector (3), one end of the mounting plate (2) is rotatably connected to the bottom of the protective housing (1), and a flipping mechanism (5) is provided on the protective housing (1), wherein the flipping mechanism (5) is rotatably connected to the other end of the mounting plate (2) and is used to drive the other end of the mounting plate (2) to flip and close the chamber (4); A rotating mechanism (6) is provided on the mounting plate (2); the rotating mechanism (6) is connected to the projector (3) and is used to drive the projector (3) to rotate.

2. An adjustable projection device for classroom use as claimed in claim 1, characterized in that: Two hinges (10) are arranged opposite to each other at one end of the interior of the chamber (4), one end of the mounting plate (2) is hingedly arranged between the two hinges (10), and the mounting plate (2) is adapted to the chamber (4).

3. An adjustable projection device for classroom use as claimed in claim 1, characterized in that: The flipping mechanism (5) comprises two driving motors (51) arranged relatively on the protective shell (1), and two rotating shafts (52) are arranged relatively rotatably inside the chamber (4), the output shaft of the driving motor (51) is connected to one end of the adjacent rotating shaft (52), the other end of the rotating shaft (52) is provided with a first hinge rod (53), the other end of the first hinge rod (53) is provided with a rotating shaft (54), the outer side of the rotating shaft (54) is hinged with a second hinge rod (55), and the other end of the second hinge rod (55) is hinged to the mounting plate (2).

4. An adjustable projection device for classroom use as claimed in claim 1, characterized in that: The rotating mechanism (6) comprises a supporting seat (61) arranged relatively on the mounting plate (2), a second driving motor (62) being arranged on any of the supporting seats (61), a third rotating shaft (63) being rotatably connected between the two supporting seats (61), a transmission rod (64) being arranged outside the third rotating shaft (63), the other end of the transmission rod (64) being connected to the projector (3), and an output shaft of the second driving motor (62) being connected to an end of the third rotating shaft (63).

5. The adjustable projection device for classroom use as claimed in claim 1, characterized in that: The device also comprises a protection mechanism (7), wherein the protection mechanism (7) comprises a protection partition (71) arranged relatively on the mounting plate (2), and a soft pad (72) arranged on the mounting plate (2), and the projector (3) abuts against the soft pad (72).

6. An adjustable projection device for classroom use as claimed in claim 2, characterized in that: It also includes an auxiliary support mechanism (8), the auxiliary support mechanism (8) including two tension springs (81) and two connecting seats (82), the two connecting seats (82) are arranged on the mounting plate (2) in opposition, and the two ends of the tension spring (81) are respectively connected to the connecting seats (82) and the hinge (10).

7. An adjustable projection device for classroom use as claimed in claim 1, characterized in that: It also comprises a connecting mechanism (9), wherein the connecting mechanism (9) comprises a connecting plate (91) arranged on the top of the protective shell (1), and a mounting buckle (92) arranged on the side wall of the protective shell (1).

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