Vehicle-mounted projection curtain device and vehicle-mounted projection system

Abstract

The invention discloses a vehicle-mounted projection curtain device and a vehicle-mounted projection system, and belongs to the field of vehicle-mounted projection. The vehicle-mounted projection curtain device comprises a curtain fixing plate, a curtain overturning arm and a curtain body. And the curtain overturning arm is provided with an overturning arm mounting seat and an overturning arm main rod. The curtain body is a hard curtain. The curtain body is fixedly connected to the overturning arm main rod. And the curtain body is synchronous with the overturning arm main rod. The portable projection display device has the advantages of being suitable for application scenes where the internal space of a vehicle is limited and portable and stable projection display is needed. As the curtain body is a hard curtain, the curtain body is not easy to damage and deform, and is not easy to generate wrinkles due to vibration, so that the projection effect is ensured.

Description

Technical Field

[0001] The invention relates to the field of vehicle-mounted projection, in particular to a vehicle-mounted projection screen device and a vehicle-mounted projection system. Background Art

[0002] Chinese patent CN210488232U "A vehicle-mounted projection screen device" (publication date: May 8, 2020) includes: a projection cloth, a locking component, and a reel. Among them, the projection cloth is a soft projection cloth. The disadvantage is that the soft projection cloth is not only easy to be damaged and deformed, but also the storage and unfolding process is cumbersome. At the same time, during the driving process of the vehicle, the soft projection cloth is prone to wrinkles due to vibration, which affects the projection effect. Summary of the invention

[0003] The technical problem to be solved by the present invention is that soft projection cloth is easily damaged and deformed, and a vehicle-mounted projection screen device and a vehicle-mounted projection system are provided.

[0004] In order to solve the above technical problems, the present invention provides a technical solution: a vehicle-mounted projection screen device, comprising: a screen fixing plate, a screen flip arm and a screen body. The screen fixing plate is fixedly connected to fixed slide rails at left and right sides. The fixed rails extend along the front-back direction. The screen flip arm has a flip arm mounting seat and a flip arm main rod. A movable slider is fixedly connected to the top of the flip arm mounting seat. The movable slider is arranged on the fixed rail. The first end of the flip arm main rod is rotatably connected to the bottom of the flip arm mounting seat. The screen body is a hard screen. The screen body is fixedly connected to the flip arm main rod. The screen body is synchronized with the flip arm main rod. The screen body in the working position is at the front end of the fixed rail and is in a vertical state, and the screen body in the storage position is at the rear end of the fixed rail and is in a horizontal state. The beneficial effect is at least that the vehicle-mounted projection screen device is suitable for application scenarios where the internal space of the vehicle is limited and portable and stable projection display is required. Since the screen body is a hard screen, it is not easy to be damaged or deformed, nor will wrinkles be easily generated due to vibration, thereby ensuring the projection effect. Since the movable slider and the fixed guide rail are sliding pairs, the screen body can not only be flipped forward and backward, but also be displaced forward and backward, in order to prevent the screen body from interfering with the installed projector.

[0005] As a preferred solution of the vehicle-mounted projection screen device, it also includes: a flip arm locking mechanism, the flip arm locking mechanism has a locking buckle seat and a locking buckle corresponding to the locking buckle seat, the locking buckle seat is behind the screen fixing plate, and the locking buckle is fixed to the second end of the flip arm main rod, when the screen body is in the storage position, the locking buckle seat is just opposite to the locking buckle, and the two are connected by buckling. The effect is at least that: the screen body in the storage position is locked to prevent the screen body from shaking or being damaged due to the vibration of the vehicle during driving.

[0006] As a preferred solution of the vehicle-mounted projection screen device, the main rod of the flip arm has a main rod stopper. When the screen body is in the storage position, the main rod stopper is just behind the fixed slide rail and the main rod stopper abuts against the fixed slide rail. The effect is at least that: the main rod of the flip arm is limited to move forward, so as to prevent the main rod of the flip arm from driving the locking buckle to leave the locking buckle seat.

[0007] As a preferred solution of the vehicle-mounted projection screen device, the screen fixing plate and the locking buckle seat are both fixed to the top wall of the vehicle. The effect is at least that: specific installation positions of the screen fixing plate and the locking buckle seat are provided.

[0008] As a preferred solution of the vehicle-mounted projection screen device, the screen body comprises a screen back plate and a screen surface covering the screen back plate. The effect is at least that: a specific implementation of a hard screen is provided.

[0009] As a preferred solution of the vehicle-mounted projection screen device, the screen flip arm also has a flip arm assist rod. The flip arm assist rod is shorter than the flip arm main rod, the first end of the flip arm assist rod is rotatably connected to the bottom of the flip arm mounting seat, the first end of the flip arm assist rod is staggered front and back with the first end of the flip arm main rod, and the second end of the flip arm assist rod is rotatably connected to the middle section of the flip arm main rod. The effect is at least that: necessary assistance is provided during the process of the user flipping the screen body, thereby reducing the operational burden of flipping and improving the user experience.

[0010] Another technical solution provided by the present invention is: a vehicle-mounted projection system, comprising: a projector and the vehicle-mounted projection screen device. The projection direction of the projector is the front and downward direction. The projection field of the projector covers the screen body in the working position. The projector is an ultra-short-throw projector. The beneficial effect is at least that the vehicle-mounted projection system is suitable for application scenarios where the interior space of the vehicle is limited and portable and stable projection display is required.

[0011] In addition to the technical problems solved by the present invention, the technical features that constitute the technical solution, and the beneficial effects brought about by the technical features of the technical solution described above, other technical problems that can be solved by the present invention, other technical features included in the technical solution, and the beneficial effects brought about by these technical features will be further described in detail in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of an embodiment of a vehicle-mounted projection screen device of the present invention.

[0013] Figure 2 It is a structural schematic diagram of a screen fixing plate in an embodiment of a vehicle-mounted projection screen device of the present invention.

[0014] Figure 3 It is a schematic structural diagram of a screen flip arm in an embodiment of a vehicle-mounted projection screen device of the present invention.

[0015] Figure 4 1 is a schematic diagram of the structure of the flip arm locking mechanism in the embodiment of the vehicle-mounted projection screen device of the present invention (locked state).

[0016] Figure 5 1 is a schematic diagram of the structure of the flip arm locking mechanism in the embodiment of the vehicle-mounted projection screen device of the present invention (unlocked state).

[0017] Figure 6 1. It is a structural schematic diagram of the screen body in an embodiment of the vehicle-mounted projection screen device of the present invention (storage position).

[0018] Figure 7 It is a schematic diagram of the process of the vehicle-mounted projection screen device embodiment of the present invention moving from a storage position to a working position.

[0019] Figure 8 It is a schematic diagram of the process of the vehicle-mounted projection screen device embodiment of the present invention moving from the working position to the storage position.

[0020] Fig. 9 Schematic diagram of the structure of an embodiment of a vehicle-mounted projection system of the present invention (the triangular area in the figure is the projection field of view of the projector). DETAILED DESCRIPTION

[0021] The present invention is further described in detail below by means of specific embodiments in combination with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each embodiment of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0022] See also Figure 1, the figure shows a vehicle-mounted projection screen device. The vehicle-mounted projection screen device is suitable for application scenarios where the interior space of the vehicle is limited and portable and stable projection display is required. The vehicle-mounted projection screen device includes: a screen fixing plate 1, a screen flip arm 2 and a screen body 3, etc.

[0023] The curtain fixing plate 1 is below the top wall of the vehicle. The top surface of the curtain fixing plate 1 abuts against the wall surface of the top wall of the vehicle. The curtain fixing plate 1 is fixed to the top wall of the vehicle by a connecting member (for example, a screw). Figure 2 The bottom surface of the curtain fixing plate 1 is fixedly connected with fixed slide rails 11 at the left and right sides. The length direction of the fixed guide rails extends along the front-back direction.

[0024] The curtain flip arm 2 is below the curtain fixing plate 1. Figure 3 The curtain flip arm 2 includes a flip arm mounting seat 21 and a flip arm main rod 22, etc.

[0025] A movable slider 211 is fixedly connected to the top of the flip arm mounting seat 21. The movable slider 211 is mounted on the fixed slide rail 11. The movable slider 211 is slidably matched with the fixed slide rail 11. Thus, the flip arm mounting seat 21 is hoisted on the fixed slide rail 11 and can move forward and backward along the fixed slide rail 11.

[0026] The flip arm main rod 22 has a first end and a second end opposite to each other. The first end of the flip arm main rod 22 is rotatably connected to the bottom of the flip arm mounting seat 21 through a first rotating shaft 24. The axial direction of the first rotating shaft 24 extends along the left-right direction. Thus, the flip arm main rod 22 can flip forward and backward and move synchronously with the flip arm mounting seat 21.

[0027] The curtain body 3 is a hard curtain. In a specific implementation, the curtain body 3 has a curtain back plate 31 and a curtain surface 32 covering the curtain back plate 31. The curtain surface 32 is fully positioned by the curtain back plate 31 so that wrinkles will not be generated on the curtain surface 32. The curtain back plate 31 is parallel to the flip arm main rod 22. The curtain back plate 31 is fixedly connected to the flip arm main rod 22. The curtain body 3 can move synchronously with the flip arm main rod 22. Thus, the curtain body 3 can have a working position (at the front end of the fixed guide rail 11 and in a vertical state) and a storage position (at the rear end of the fixed guide rail 11 and in a horizontal state).

[0028] Furthermore, the curtain flip arm 2 also has a flip arm assist rod 23. The flip arm assist rod 23 is shorter than the flip arm main rod 22. The flip arm assist rod 23 is in the form of a hydraulic rod. The flip arm assist rod 23 has a first end and a second end opposite to each other. The first end of the flip arm assist rod 23 is rotatably connected to the bottom of the flip arm mounting seat 21 through a second rotating shaft 25. The first end of the flip arm assist rod 23 is staggered front and back from the first end of the flip arm main rod 22. The second end of the flip arm assist rod 23 is rotatably connected to the middle section of the flip arm main rod 22 through a third rotating shaft 26. The axial direction of the second rotating shaft 25 and the axial direction of the third rotating shaft 26 both extend in the left-right direction. Thus, the flip arm main rod 22 can flip forward and backward. The purpose of adding the flip arm assist rod 23 is to provide necessary assistance during the process of the user flipping the curtain body 3, thereby reducing the operational burden of flipping and improving the user experience.

[0029] Furthermore, the curtain flip arm 2 also has a limit spring latch 27 and a limit pin 28, the purpose of which is to limit the rotation angle of the flip arm main rod 22 to prevent the curtain body 3 from being damaged due to excessive rotation during the flipping process.

[0030] Furthermore, the vehicle-mounted projection screen device further includes: a flip arm locking mechanism 4. The flip arm locking mechanism 4 has a locking buckle seat 41 and a locking buckle member 42 corresponding to the locking buckle seat 41. The locking buckle seat 41 is fixed to the top wall of the vehicle, and the locking buckle seat 41 is behind the screen fixing plate 1, and the locking buckle member 42 is fixed to the second end of the flip arm main rod 22. When the screen body 3 is in the storage position, the locking buckle seat 41 is just opposite to the locking buckle member 42, and the two are buckled and connected.

[0031] See also Figure 4 , the locking buckle 42 enters the locking buckle seat 41, the flip arm main rod 22 is locked, and the curtain body 3 is also locked at this time and cannot be flipped freely. Figure 5 , the locking buckle 42 leaves the locking buckle seat 41, the flip arm main rod 22 is unlocked, and the curtain body 3 is also unlocked at this time and can be flipped freely.

[0032] Further, see Figure 6 The flip arm main rod 22 has a main rod stopper 221. When the curtain body 3 is in the storage position, the main rod stopper 221 is just behind the fixed slide rail 11, and the main rod stopper 221 abuts against the fixed slide rail 11 to limit the forward displacement of the flip arm main rod 22, so as to prevent the flip arm main rod 22 from driving the locking buckle 42 to leave the locking buckle seat 41.

[0033] See also Figure 7 , the figure shows the process of the curtain body 3 moving from the storage position to the working position. Specifically, it includes: state 1 to state 4. State 1: the curtain body 3 is in the storage position, and the locking buckle 42 leaves the locking buckle seat 41. State 2: the curtain body 3 is flipped forward. State 3: the curtain body 3 is vertical. State 4: the curtain body 3 is displaced forward, and the curtain body 3 reaches the working position.

[0034] See also Figure 8 , the figure shows the process of the curtain body 3 moving from the working position to the storage position. Specifically, it includes: state 1 to state 4. State 1: the curtain body 3 is in the working position. State 2: the curtain body 3 is displaced backward. State 3: the curtain body 3 is flipped backward. State 4: the curtain body 3 reaches the storage position, and the locking buckle 42 enters the locking buckle seat 41.

[0035] See also Fig. 9 , the figure shows a vehicle-mounted projection system. The vehicle-mounted projection system comprises: a projector 5 and the vehicle-mounted projection screen device. The projector 5 is an ultra-short-throw projector. The projection direction of the projector 5 is the front and downward. The projection field of the projector 5 covers the screen body 3 in the working position. In this way, vehicle-mounted projection is realized.

[0036] The above only expresses the implementation mode of the present invention, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A vehicle-mounted projection screen device, characterized in that: include: A curtain fixing plate, a curtain flipping arm and a curtain body; the curtain fixing plate is fixedly connected to fixed slide rails at left and right sides, and the fixed guide rails extend along the front-back direction; the curtain flipping arm has a flipping arm mounting seat and a flipping arm main rod, the top of the flipping arm mounting seat is fixedly connected to a movable slider, the movable slider is arranged on the fixed slide rail, and the first end of the flipping arm main rod is rotatably connected to the bottom of the flipping arm mounting seat; the curtain body is a hard curtain, the curtain body is fixedly connected to the flipping arm main rod, and the curtain body is synchronized with the flipping arm main rod; wherein, the curtain body in the working position is at the front end of the fixed guide rail and is in a vertical state, and the curtain body in the storage position is at the rear end of the fixed guide rail and is in a horizontal state.

2. The vehicle-mounted projection screen device according to claim 1, characterized in that: Also includes: The flip arm locking mechanism comprises a locking buckle seat and a locking buckle corresponding to the locking buckle seat, wherein the locking buckle seat is located behind the curtain fixing plate, and the locking buckle is fixed to the second end of the flip arm main rod. When the curtain body is in the storage position, the locking buckle seat is just opposite to the locking buckle, and the two are buckled and connected.

3. The vehicle-mounted projection screen device according to claim 2, characterized in that: The main rod of the flip arm has a main rod stopper. When the curtain body is in the storage position, the main rod stopper is just behind the fixed slide rail, and the main rod stopper abuts against the fixed slide rail.

4. The vehicle-mounted projection screen device according to claim 2, characterized in that: The curtain fixing plate and the locking buckle seat are both fixed on the top wall of the vehicle.

5. The vehicle-mounted projection screen device according to claim 1, characterized in that: The curtain body comprises a curtain back plate and a curtain surface covering the curtain back plate.

6. The vehicle-mounted projection screen device according to claim 1, characterized in that: The curtain flipping arm also has a flipping arm booster rod, which is shorter than the flipping arm main rod. The first end of the flipping arm booster rod is rotatably connected to the bottom of the flipping arm mounting seat, the first end of the flipping arm booster rod is staggered front and back with the first end of the flipping arm main rod, and the second end of the flipping arm booster rod is rotatably connected to the middle section of the flipping arm main rod.

7. A vehicle-mounted projection system, characterized in that: include: A projector and a vehicle-mounted projection screen device as claimed in any one of claims 1 to 6; The projection direction of the projector is the front and downward direction, and the projection field of the projector covers the screen body in the working position.

8. The vehicle-mounted projection system according to claim 7, characterized in that: The projector is an ultra short-throw projector.

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