Vehicle-mounted projection curtain device

Abstract

The utility model discloses a vehicle-mounted projection curtain device, 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 utility model relates to the field of vehicle-mounted projection, in particular to a vehicle-mounted projection screen device. BACKGROUND

[0002] Chinese patent CN210488232U "a vehicle-mounted projection screen device" (disclosed date: May 8, 2020) includes: projection cloth, locking component, reel shaft. Among them, the projection cloth is soft projection cloth. The defect is: soft projection cloth is not only easy to be damaged, easy to deform, and the storage and expansion process is complicated. At the same time, in the process of vehicle driving, soft projection cloth is easy to produce wrinkles due to vibration, which affects the projection effect. SUMMARY

[0003] The utility model solves the technical problem that soft projection cloth is easy to be damaged and easy to deform, and provides a vehicle-mounted projection screen device.

[0004] In order to solve the above technical problems, the utility model provides a technical scheme: a vehicle-mounted projection screen device, which comprises a screen fixing plate, a screen turnover arm and a screen body, the screen fixing plate is fixedly connected with the fixed slide rails at the left and right sides, the fixed slide rails extend along the front and rear directions, the screen turnover arm has a turnover arm mounting seat and a turnover arm main rod, the top of the turnover arm mounting seat is fixedly connected with a movable sliding block, the movable sliding block is arranged in the fixed slide rail, the first end of the turnover arm main rod is rotatably connected to the bottom of the turnover arm mounting seat, the screen body is a hard screen, the screen body has a screen back plate and a screen surface covering the screen back plate, the screen body is fixedly connected to the turnover arm main rod, and the screen body is synchronous with the turnover arm main rod, wherein the screen body at the working position is at the front end of the fixed slide rail and is in a vertical state, and the screen body at the storage position is at the rear end of the fixed slide rail and is in a horizontal state, the screen turnover arm further has a turnover arm booster rod, the turnover arm booster rod is shorter than the turnover arm main rod, the first end of the turnover arm booster rod is rotatably connected to the bottom of the turnover arm mounting seat, the first end of the turnover arm booster rod is staggered forward and backward with the first end of the turnover arm main rod, and the second end of the turnover arm booster rod is rotatably connected to the middle segment position of the turnover arm main rod. The beneficial effects at least lie in that the vehicle-mounted projection screen device is suitable for the application scene of limited internal space of vehicle and needs portable and stable projection display. Since the screen body is a hard screen, it is not easy to be damaged and deformed, and wrinkles are not easy to be produced due to vibration, so as to ensure the projection effect. Since the movable sliding block and the fixed slide rail are sliding pairs, the screen body can be displaced forward and backward in addition to being turned over forward and backward, so as to prevent the screen body from interfering with the installed projector.

[0005] As the preferred scheme of the vehicle-mounted projection curtain device, the turning arm locking mechanism is provided with a locking buckle seat and a locking buckle piece corresponding to the locking buckle seat, the locking buckle seat is behind the curtain fixing plate, and the locking buckle piece is fixed to the second end of the turning arm main rod. When the curtain body is in the storage position, the locking buckle seat is just opposite to the locking buckle piece, and the two are buckled and connected. The effect is at least that the curtain body in the locking storage position is prevented from shaking or being damaged due to vibration in vehicle driving.

[0006] As the preferred scheme of the vehicle-mounted projection curtain device, the turning arm main rod is provided with a main rod stopper, the main rod stopper is just behind the fixed slide rail when the curtain body is in the storage position, and the main rod stopper abuts against the fixed slide rail. The effect is at least that the forward displacement of the turning arm main rod is limited, so that the turning arm main rod is prevented from driving the locking buckle piece away from the locking buckle seat.

[0007] As the preferred scheme of the vehicle-mounted projection curtain device, the curtain fixing plate and the locking buckle seat are fixed to the vehicle roof. The effect is at least that the specific installation positions of the curtain fixing plate and the locking buckle seat are provided.

[0008] In addition to the technical problems solved by the utility model, the technical features of the technical scheme and the beneficial effects brought by the technical features, other technical problems solved by the utility model, other technical features contained in the technical scheme and the beneficial effects brought by the technical features will be further described in detail in combination with the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 is a structural schematic view of the vehicle-mounted projection curtain device embodiment of the utility model.

[0010] Figure 2 is a structural schematic view of the curtain fixing plate in the vehicle-mounted projection curtain device embodiment of the utility model.

[0011] Figure 3 is a structural schematic view of the curtain turning arm in the vehicle-mounted projection curtain device embodiment of the utility model.

[0012] Figure 4 is a structural schematic view of the turning arm locking mechanism in the vehicle-mounted projection curtain device embodiment of the utility model (locking state).

[0013] Figure 5 is a structural schematic view of the turning arm locking mechanism in the vehicle-mounted projection curtain device embodiment of the utility model (unlocking state).

[0014] Figure 6 is the structural schematic view of the curtain body in the vehicle-mounted projection curtain device embodiment of the utility model (storage position).

[0015] Figure 7 is the schematic view of the process from the storage position to the working position of the vehicle-mounted projection curtain device embodiment of the utility model.

[0016] Figure 8 is the schematic view of the process from the working position to the storage position of the vehicle-mounted projection curtain device embodiment of the utility model.

[0017] Figure 9 is the structural schematic view of the vehicle-mounted projection system embodiment of the utility model (the triangular area in the drawing is the projection visual field of the projector). DETAILED DESCRIPTION

[0018] The utility model will be further explained in detail by specific implementation ways combined with the drawings. It needs to be explained here that the explanation of these implementation ways is used to help understanding the utility model, but does not constitute the limitation to the utility model. In addition, the technical features involved in each implementation way of the utility model described below can be combined mutually as long as they do not conflict with each other.

[0019] Referring to Figure 1 , it shows a vehicle-mounted projection curtain device. The vehicle-mounted projection curtain device is suitable for the application scene that the interior space of the vehicle is limited and needs portable and stable projection display. The vehicle-mounted projection curtain device comprises a curtain fixing plate 1, a curtain turnover arm 2 and a curtain body 3 and the like.

[0020] The curtain fixing plate 1 is below the top wall of the vehicle. The top surface of the curtain fixing plate 1 is abutted to the wall surface of the top wall of the vehicle. The curtain fixing plate 1 is fixed on the top wall of the vehicle through a connecting piece (for example, a screw). Referring to Figure 2 , the bottom surface of the curtain fixing plate 1 is fixedly connected with fixed slide rails 11 at the left and right positions. The length direction of the fixed slide rail extends along the front and back directions.

[0021] The curtain turnover arm 2 is below the curtain fixing plate 1. Referring to Figure 3 , the curtain turnover arm 2 comprises a turnover arm mounting seat 21 and a turnover arm main rod 22 and the like.

[0022] The top of the turnover arm mounting seat 21 is fixedly connected with a movable sliding block 211. The movable sliding block 211 is arranged in the fixed slide rail 11. The movable sliding block 211 is slidably matched with the fixed slide rail 11. Thus, the turnover arm mounting seat 21 is hoisted in the fixed slide rail 11 and can be displaced along the fixed slide rail 11 in the front and back directions.

[0023] The main rod 22 of the curtain rotating arm has opposite first and second ends. The first end of the main rod 22 of the curtain rotating arm is rotatably connected to the bottom of the rotating arm mounting base 21 through a first rotating shaft 24. The axis of the first rotating shaft 24 extends along the left-right direction. Thus, the main rod 22 of the curtain rotating arm can be flipped forward and backward and displaced synchronously with the rotating arm mounting base 21.

[0024] The curtain body 3 is a hard curtain. In practice, the curtain body 3 has a curtain backboard 31 and a curtain surface 32 covering the curtain backboard 31. The curtain surface 32 is fully positioned by the curtain backboard 31 so that the curtain surface 32 will not wrinkle. The curtain backboard 31 is parallel to the main rod 22 of the curtain rotating arm. The curtain backboard 31 is fixedly connected to the main rod 22 of the curtain rotating arm. The curtain body 3 can act synchronously with the main rod 22 of the curtain rotating arm. Thus, the curtain body 3 can have a working position (at the front end of the fixed slide rail 11 and in a vertical state) and a storage position (at the rear end of the fixed slide rail 11 and in a horizontal state).

[0025] Further, the curtain rotating arm 2 also has a rotating arm booster rod 23. The rotating arm booster rod 23 is shorter than the main rod 22 of the curtain rotating arm. The rotating arm booster rod 23 is in the form of a hydraulic rod. The rotating arm booster rod 23 has opposite first and second ends. The first end of the rotating arm booster rod 23 is rotatably connected to the bottom of the rotating arm mounting base 21 through a second rotating shaft 25. The first end of the rotating arm booster rod 23 is staggered forward and backward with the first end of the main rod 22 of the curtain rotating arm. The second end of the rotating arm booster rod 23 is rotatably connected to the middle position of the main rod 22 of the curtain rotating arm through a third rotating shaft 26. The axis of the second rotating shaft 25 and the axis of the third rotating shaft 26 both extend along the left-right direction. Thus, the main rod 22 of the curtain rotating arm can be flipped forward and backward. The rotating arm booster rod 23 is added to provide necessary assistance during the process of flipping the curtain body 3 by the user, thereby reducing the operation burden of flipping and improving the use experience.

[0026] Further, the curtain rotating arm 2 also has a limiting spring bolt 27 and a limiting pin 28, which are used to limit the rotation angle of the main rod 22 of the curtain rotating arm to avoid damage to the curtain body 3 during flipping due to excessive rotation.

[0027] Further, the vehicle-mounted projection curtain device further comprises a turnover arm locking mechanism 4. The turnover arm locking mechanism 4 has a locking buckle seat 41 and a locking buckle 42 corresponding to the locking buckle seat 41. The locking buckle seat 41 is fixed on the vehicle roof, and the locking buckle seat 41 is behind the curtain fixing plate 1, and the locking buckle 42 is fixed on the second end of the turnover arm main rod 22. When the curtain body 3 is in the storage position, the locking buckle seat 41 is just opposite to the locking buckle 42, and the two are buckled.

[0028] Referring to Figure 4 , the locking buckle 42 enters the locking buckle seat 41, the turnover arm main rod 22 is locked, and the curtain body 3 at this time is also locked and cannot be freely turned over. Referring to Figure 5 , the locking buckle 42 leaves the locking buckle seat 41, the turnover arm main rod 22 is unlocked, and the curtain body 3 at this time is also unlocked and can be freely turned over.

[0029] Further, referring to Figure 6 , the turnover 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 turnover arm main rod 22, so as to prevent the turnover arm main rod 22 from driving the locking buckle 42 to leave the locking buckle seat 41.

[0030] Referring to Figure 7 , the figure shows the process of the curtain body 3 from the storage position to the working position. Specifically, it includes states 1 to 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: turn the curtain body 3 forward. State 3: the curtain body 3 is vertical. State 4: displace the curtain body 3 forward, and the curtain body 3 reaches the working position.

[0031] Referring to Figure 8 , the figure shows the process of the curtain body 3 from the working position to the storage position. Specifically, it includes states 1 to 4. State 1: the curtain body 3 is in the working position. State 2: displace the curtain body 3 backward. State 3: turn the curtain body 3 backward. State 4: the curtain body 3 reaches the storage position, and the locking buckle 42 enters the locking buckle seat 41.

[0032] Referring to Figure 9The vehicle-mounted projection system comprises a projector 5 and the vehicle-mounted projection screen device.

[0033] The above only expresses the embodiment of the present application, the description is more specific and detailed, but cannot be understood as the limitation of the scope of the present application patent. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A vehicle-mounted projection screen device, characterized in that, Comprise: The curtain fixed plate, curtain turnover arm and curtain body; The fixed slide rail of left and right side position is fixedly connected with the curtain fixed plate, and the fixed slide rail extends along the front and back direction; The turnover arm mounting seat and the turnover arm main rod are provided with the curtain turnover arm, the top of the turnover arm mounting seat is fixedly connected with the movable sliding block, the movable sliding block is arranged in the fixed slide rail, and the first end of the turnover arm main rod is rotatably connected to the bottom of the turnover arm mounting seat; The curtain body is a hard curtain, the curtain body has a curtain back plate and a curtain surface covering the curtain back plate; The curtain body is fixedly connected to the turnover arm main rod, and the curtain body is synchronous with the turnover arm main rod; Wherein, the curtain body in the working position is at the front end of the fixed slide rail and in the vertical state, and the curtain body in the storage position is at the rear end of the fixed slide rail and in the horizontal state; The curtain turnover arm further has a turnover arm booster rod, the turnover arm booster rod is shorter than the turnover arm main rod, the first end of the turnover arm booster rod is rotatably connected to the bottom of the turnover arm mounting seat, the first end of the turnover arm booster rod is staggered forward and backward with the first end of the turnover arm main rod, and the second end of the turnover arm booster rod is rotatably connected to the middle segment position of the turnover arm main rod.

2. The vehicle-mounted projection screen device according to claim 1, characterized in that, Further comprise: The turnover 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 curtain fixed plate, and the locking buckle is fixed to the second end of the turnover 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 buckledly connected.

3. The vehicle-mounted projection screen device according to claim 2, characterized in that, The turnover arm main rod 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 fixed plate and the locking buckle seat are fixed to the vehicle top wall.

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