Projection cabinet with screen self-cleaning function

Abstract

The projection cabinet with the screen self-cleaning function comprises a cabinet body, a projection device, a translation driving mechanism, a sliding cabinet unit and a cleaning mechanism, the cabinet body comprises a cabinet frame and a storage cabinet combination, a curtain is fixedly arranged in the cabinet frame, the projection device is arranged in the middle of the storage cabinet combination in a sliding and extending mode, and the screen is arranged in the storage cabinet combination. The translation driving mechanism is arranged at the top of the cabinet frame and used for driving the sliding cabinet unit to translate, the sliding cabinet unit is driven by the translation driving mechanism to transversely slide, the cleaning mechanism comprises a roller, brushes are distributed on the roller, and the roller is rotatably installed on the rear side of the sliding cabinet unit so as to roll when the sliding cabinet unit slides, and the surface of the curtain is cleaned. The projection cabinet provided by the utility model realizes the function of automatically cleaning the curtain when the sliding cabinet unit moves.

Description

Technical Field

[0001] The utility model relates to the field of smart home, in particular to a projection cabinet with a screen self-cleaning function. Background Art

[0002] Projection cabinets are used in the field of smart homes. Existing projection cabinets are usually composed of an open cabinet body and a projector and a screen arranged in the cabinet body. The projector is arranged at the top of the cabinet body and tilted toward the cabinet body, and the screen is arranged on the bottom plate at the rear side of the cabinet body. However, the rough surface of the screen easily absorbs dust, which affects the projection quality and is not convenient for users to clean it. To address this problem, projection cabinets with retractable screens have appeared on the market. When the screen is not needed, the screen is rolled up and the surface of the screen is cleaned. For example, the Chinese utility model patent document with application publication number CN215076781U discloses a projection TV cabinet with automatic screen cleaning, which includes a projection TV cabinet fixing box, a projection cloth fixing box, a dust collection box, and a trash can.

[0003] When the projection TV cabinet is retracted and extended up and down, the motor installed on the top of the inner wall of the projection cloth fixing box rotates, and the first gear connected to one end of the motor output shaft rotates synchronously, driving the second gear meshing with one side of the first gear. The rotation of the second gear simultaneously drives the projection cloth retracting rod to rotate in the drum, and the projection cloth is retracted and extended up and down. A brush is provided on one side of the dust box to clean dust when the projection cloth is extended and retracted up and down. The vacuum cleaner motor sucks dust into the trash can through the dust suction hole and the dust suction port, and cleans it through the first sliding drawer inside the trash can.

[0004] Although the above-mentioned TV cabinet can clean the surface while the projection cloth is being folded up and down, there are still some problems. Frequent folding and unfolding of the projection cloth is not conducive to the durability of the screen. Utility Model Content

[0005] In view of the above, it is necessary for the present invention to provide a projection cabinet with a screen self-cleaning function, which can achieve cleaning without the need to roll up the screen, thereby improving the durability of the screen.

[0006] A projection cabinet with a screen self-cleaning function includes a cabinet body, a projection device, a translation drive mechanism, and a sliding cabinet unit. The projection device is extendably mounted on the cabinet body, the translation drive mechanism and the sliding cabinet unit are both mounted on the cabinet body, and the translation drive mechanism drives the sliding cabinet unit to slide.

[0007] The cabinet body includes a cabinet frame and a storage cabinet assembly installed at the lower end of the cabinet frame. The cabinet frame includes a front frame plate and a back frame plate. A hollow frame chamber is formed between the front frame plate and the back frame plate. A window is opened in the front frame plate. A screen is installed in the frame chamber adjacent to the back frame plate.

[0008] The cabinet assembly comprises a top plate, the top plate is provided with a transversely extending guide groove, and a tooth groove is formed on the side surface of the guide groove;

[0009] The sliding cabinet unit can be installed in the frame room in a transversely slidable manner, and includes a frame body and a back plate formed on the rear side of the frame body, a corner groove is longitudinally opened on one side of the back plate, and shaft sleeve blocks are provided at both ends of the corner groove;

[0010] The projection cabinet also includes a cleaning mechanism, which includes a roller and a brush. The roller includes a cylinder and a gear. The top end of the cylinder is rotatably mounted on the shaft sleeve block at the upper end, and the lower end of the cylinder passes through the shaft sleeve block at the lower end. The gear is fixedly mounted on the bottom end of the cylinder and engages with the tooth groove in the guide groove. When the sliding cabinet unit slides, the gear rotates along the tooth groove of the guide groove, causing the cylinder with the brush to rotate, driving the brush to clean the screen, thereby realizing cleaning while the sliding cabinet unit moves.

[0011] Furthermore, the size of the screen is comparable to the window, and there are two sliding cabinet units, which slide relatively far away or close to each other. When sliding adjacent to each other, the two sliding cabinet units correspond to the window size and cover the window, and are hidden when the two sliding cabinet units slide to both sides of the front frame.

[0012] Furthermore, the projection device includes a box body, a projector installed in the box body, and a heat dissipation device. A groove is provided on the upper surface of the box body, a projection window is horizontally provided in the groove, and a heat dissipation port is provided at the rear side of the groove.

[0013] Furthermore, the translation drive mechanism includes a slide rail beam, a hanger, a first motor, a gear and a toothed belt. The slide rail beam is installed on the top of the cabinet frame, the first motor is installed at one end of the slide rail beam, there are two gears, which are respectively installed at both ends of the slide rail beam, and the gear at one end is sleeved on the output shaft of the first motor. The toothed belt is wrapped around the gears at both ends, forming an upper and lower belt layer. There are multiple hangers, which can be slidably overlapped on the slide rail beam, and some of the hangers are clamped with the upper belt layer of the toothed belt, and the remaining hangers are clamped with the lower belt layer of the toothed belt.

[0014] Furthermore, there are two sliding cabinet units, one of which is connected to a plurality of hangers clamped to the upper belt layer, and the other is connected to a plurality of hangers clamped to the lower belt layer.

[0015] Furthermore, the cleaning mechanism includes an exhaust mechanism, the drum adopts a hollow cylinder, and dust suction holes are evenly staggered on the circumferential surface of the drum. A chamber is opened on the sleeve block where the top of the drum is located and is connected to the inside of the drum. The exhaust mechanism adopts an exhaust fan, and an exhaust pipe is provided to connect to the chamber on the sleeve block of the drum.

[0016] Furthermore, dust suction holes are evenly staggered on the circumferential surface of the drum, and the exhaust mechanism includes a second motor, a rotating shaft and an impeller. A fixed plate is provided on the back plate, and the fixed plate is located on the upper side of the upper sleeve block. The second motor is mounted on the fixed plate, and the output shaft of the second motor is connected to the rotating shaft, and the rotating shaft is sleeved in the drum. The impellers are fixed on the rotating shaft at equal intervals, and the impeller of the rotating shaft is driven by the second motor to rotate to suck air into the dust suction holes.

[0017] Furthermore, a corresponding chamber is opened on the shaft sleeve block where the top end of the roller is located and is communicated with the inside of the roller, so that air is sucked into the dust suction hole and discharged from the chamber on the shaft sleeve block.

[0018] Compared with the existing technology, the utility model is a projection cabinet with a self-cleaning device. When the sliding cabinet unit moves, the cleaning mechanism drives the screen to clean the screen. The screen surface can be cleaned without repeatedly retracting and unfolding the screen, and the cleaned dust is adsorbed and collected by the exhaust mechanism, thereby improving the durability of the screen and maintaining the cleanliness of the screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional diagram of a projection cabinet with a screen self-cleaning function according to a preferred embodiment of the present invention;

[0020] Figure 2 A perspective view of a sliding cabinet unit with a self-cleaning device in an open state;

[0021] Figure 3 A perspective view of a sliding cabinet unit connected to a translation drive mechanism;

[0022] Figure 4 is a three-dimensional diagram of the projection device;

[0023] Figure 5 It is a rear side view of the sliding cabinet unit;

[0024] Figure 6 Rear view of the projection cabinet with the frame removed;

[0025] Figure 7 for Figure 6 Enlarged view of point B in the middle;

[0026] Figure 8 for Figure 6 Enlarged view of point A in the middle.

[0027] The following are the descriptions of the reference numerals:

[0028] 10. Cabinet body; 101. Screen; 11. Cabinet frame; 111. Side panels; 112. Front frame panel; 113. Back frame panel; 12. Cabinet assembly; 121. Top panel; 1211. Guide groove; 1212. Tooth groove; 20. Projection device; 21. Groove; 22. Projection window; 23. Heat dissipation vent; 30. Translation drive mechanism; 31. Slide rail beam; 32. Hanger; 33. First motor; 34. Toothed belt; 40. Sliding cabinet unit; 41. Back panel; 411. Corner groove; 412. Bushing hole; 413. Fixing plate; 42. Connecting frame; 50. Cleaning mechanism; 51. Roller; 511. Cylinder body; 512. Dust collection hole; 513. Toothed disc; 52. Brush; 53. Exhaust mechanism; 531. Rotating shaft; 532. Impeller. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0030] See also Figure 1-Figure 4 A projection cabinet with a screen self-cleaning function includes a cabinet body 10, a projection device 20, a translation drive mechanism 30, a sliding cabinet unit 40 and a cleaning mechanism 50. The cabinet body 10 includes a cabinet frame 11 and a storage cabinet assembly 12 installed at the lower end of the cabinet frame 11. The cabinet frame 11 includes a front frame plate 112 and a back frame plate 113. A hollow frame chamber is formed between the front frame plate 112 and the back frame plate 113. A window is opened on the front frame plate 112. A screen 101 is installed in the frame chamber adjacent to the back frame plate 113. The screen 101 is set at the rear side of the window and its size is smaller than the window size. It can be understood that the screen 101 can be a curtain or a display screen. Or a wall surface for projection, the sliding cabinet unit 40 can be slidably installed in the frame room. Preferably, there are two sliding cabinet units 40, which can slide relatively far away or close to each other. When sliding to adjacent, the two sliding cabinet units 40 correspond to the window size and can completely block the screen 101; the projection device 20 is slidably extended and arranged on the storage cabinet combination 12, which is convenient for projection on the screen 101. The translation drive mechanism 30 is arranged at the top of the cabinet frame 11 to drive the sliding cabinet unit 40 to translate. The sliding cabinet unit 40 slides horizontally under the drive of the translation drive mechanism 30. The cleaning mechanism 50 is installed on the rear side of the sliding cabinet unit 40 to clean the surface of the screen 101.

[0031] Specifically, the cabinet frame 11 includes side plates 111, a top frame plate, a front frame plate 112, and a rear frame plate 113. In this embodiment, the screen 101 is fixed at the center of the rear frame plate 113 and maintains a certain gap with the sliding cabinet unit 40 on the front side to prevent the sliding cabinet unit 40 from hitting the screen 101 when it slides. The front frame plate 112 is in a "冂" shape for the sliding cabinet unit 40 to slide to both sides of the front frame plate 112 for hiding.

[0032] Please refer to Figure 6 , the storage cabinet combination 12 has a top plate 121 that supports the cabinet frame 11. The top plate 121 is provided with a horizontally extending guide groove 1211 for installing the bottom end of the sliding cabinet unit 40. Specifically, a tooth groove 1212 is formed on the side of the guide groove 1211, and the bottom end of the sliding cabinet unit 40 correspondingly forms a gear that cooperates with the tooth groove 1212 to guide the sliding of the sliding cabinet unit 40.

[0033] The projection device 20 is movably arranged in the middle of the storage cabinet combination 12, extends out of the storage cabinet combination 12 during projection, and retracts into the storage cabinet combination 12 when projection is not required. The projection device 20 adopts a square body structure and includes a box body and a projector installed in the box body. A square groove 21 is opened on the upper surface of the box body, and a transparent projection window 22 is horizontally arranged in the groove 21. The projection window 22 is made of transparent glass for the light projected by the projector installed in the box body to pass through the projection window 22 and project onto the screen 101.

[0034] Furthermore, a heat dissipation port 23 is opened at the rear side of the groove 21 for dissipating the heat generated by the projector. It can be understood that a heat dissipation device is arranged in the box body. Preferably, the heat dissipation device adopts a fan to discharge the heat generated in the projection device 20 from the heat dissipation port 23 through the action of the heat dissipation device. The hot air discharged when the heat dissipation port 23 dissipates heat blows on the projection window 22, which can evaporate the water vapor formed on the projection window 22 or blow away the dust.

[0035] Furthermore, speakers are arranged in the storage cabinet units adjacent to both sides of the projection device 20 for playing audio.

[0036] Please refer to Figure 3The translation drive mechanism 30 is arranged at the top of the cabinet frame 11 and is used to drive the sliding cabinet unit 40 to move horizontally. The translation drive mechanism 30 includes a slide rail beam 31, a hanger 32, a first motor 33, a gear and a toothed belt 34. The slide rail beam 31 is installed at the top of the cabinet frame 11, and the first motor 33 is installed at one end of the slide rail beam 31. There are two gears, which are respectively installed at both ends of the slide rail beam 31, and the gear at one end is sleeved on the output shaft of the first motor 33. The toothed belt 34 is wrapped around the gears at both ends, forming an upper and lower belt layer. When the first motor 33 rotates, it drives the corresponding gear to rotate, and the gear drives the upper and lower belt layers of the toothed belt 34 to move horizontally toward each other, and the movement directions of the upper and lower belt layers are opposite. There are multiple hangers 32, which are slidably overlapped on the slide rail beam 31, and some of the hangers 32 are engaged with the upper belt layer of the toothed belt 34, and the remaining hangers 32 are engaged with the lower belt layer of the toothed belt 34. Therefore, when the toothed belt 34 moves, the hangers 32 connected to the upper belt layer are driven to move synchronously toward or in the opposite direction relative to the hangers 32 connected to the lower belt layer.

[0037] There are two sliding cabinet units 40, one of which is connected to several hangers 32 clamped with the upper belt layer, and the other is connected to several hangers 32 clamped with the lower belt layer. The sliding cabinet unit 40 includes a frame, a back plate 41 formed on the rear side of the frame, and several connecting frames 42 formed on the top surface of the cabinet frame. The frame is formed by a cross-arrangement of several layer plates and partitions. The several connecting frames 42 on the top surface of each frame are used to connect with a corresponding number of hangers 32, so that the frame can be stably suspended and slid.

[0038] See also Figure 5 A corner groove 411 is longitudinally provided on one side of the back plate 41 of the sliding cabinet unit 40, and shaft sleeve blocks are provided at both ends of the corner groove 411. A shaft sleeve hole 412 is provided on the shaft sleeve block for mounting the cleaning mechanism 50.

[0039] See also Figure 6-Figure 8 The cleaning mechanism 50 includes a roller 51 and a brush 52. The roller 51 includes a cylinder 511 and a toothed disc 513 fixedly mounted on the bottom end of the cylinder 511. The top end of the cylinder 511 is rotatably mounted in the shaft sleeve hole 412 of the upper shaft sleeve block (such as by a sleeve bearing), and the lower end of the cylinder 511 passes through the shaft sleeve hole 412 of the shaft sleeve block at the lower end, and the toothed disc 513 at the bottom end of the cylinder 511 engages with the toothed groove 1212 on the side of the guide groove 121. The brush 52 is evenly and staggeredly mounted on the circumferential surface of the cylinder 511. When the sliding cabinet unit 40 moves, it drives the toothed disc 513 at the bottom end of the cylinder 511 to rotate along the toothed groove 1212 of the guide groove 121, so that the cylinder 511 with the brush 52 rotates, and the brush 52 cleans the screen 101, realizing that the sliding cabinet unit 40 cleans while moving.

[0040] Furthermore, the cleaning mechanism 50 includes an exhaust mechanism 53, the drum 51 adopts a hollow cylinder, and dust suction holes 512 are evenly staggered on the circumferential surface of the drum 51. A corresponding chamber is opened on the sleeve block where the top of the drum 51 is located and is connected to the cylinder of the drum 51. The exhaust mechanism 53 can adopt an exhaust fan (not shown in the figure), and an exhaust pipe is provided to connect to the chamber on the sleeve block of the drum 51, so that the air in the drum 51 can be extracted, thereby further sucking out the dust.

[0041] In addition, the exhaust mechanism 53 can also be set to other exhaust structures. In the figure of this embodiment, the exhaust mechanism 53 includes a second motor, a rotating shaft 531 and an impeller 532. A fixed plate 413 is set on the back plate 41, and the fixed plate 413 is located on the upper side of the upper sleeve block. The second motor is installed on the fixed plate 413, and the output shaft of the second motor is connected to the rotating shaft 531, and the rotating shaft 531 is sleeved in the drum 51. The impeller 532 is fixed on the rotating shaft 531 at equal intervals. The rotation of the second motor output shaft drives the rotating shaft 531 to rotate, and the impeller 532 rotates together with the rotating shaft 531. The impeller 532 is set to a turbine structure, which is used to suck air into the dust suction hole 512 and discharge it from the chamber on the sleeve block.

[0042] Furthermore, a control system is provided in the projection cabinet for controlling the start and stop of each mechanism.

[0043] In summary, in the present invention, when the translation drive mechanism 30 drives the cabinet unit 40 to translate, the roller 51 rotates synchronously with the cabinet unit 40. The toothed disc 513 rolls along the toothed grooves 1212 on the side of the guide groove 1211, driving the roller 51 to rotate. As the rotating roller 51 passes over the screen 101, it cleans the surface of the screen 101. Simultaneously, the exhaust mechanism 53 further draws dust removed by the brush 52 into the roller 51 through the dust collection holes 512 and blows it downward. It will be appreciated that a dust collection hose is connected to the chamber on the sleeve block, and a dust filter bag is provided at the end of the dust collection pipe to collect dust.

[0044] When using the above-described projection cabinet, in normal operation, the sliding cabinet units 40 abut against each other in the middle of the cabinet frame 11, making it convenient for people to store items or display decorations in the cabinet. When the projection function is required, the control system is activated to control the first motor 33 of the translation drive mechanism 30 to rotate, driving the sliding cabinet units 40 to translate away from each other. During this translation, the roller 51 rotates, and the rotating brush 52 sweeps dust off the screen 101 and collects the dust through the dust collection holes 512. When the sliding cabinet units 40 abut against the side panels 111 of the cabinet frame 11, the central projection area is fully opened, and the sliding cabinet units 40 are hidden behind the front frame panel 13. In this way, the projection cabinet can clean the screen 101 when opening and closing, giving the screen a self-cleaning function that helps keep the screen clean.

[0045] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A projection cabinet with a screen self-cleaning function, comprising a cabinet body (10), a projection device (20), a translation drive mechanism (30), and a sliding cabinet unit (40), wherein the projection device (20) is protrusibly mounted on the cabinet body (10), the translation drive mechanism (30) and the sliding cabinet unit (40) are both mounted on the cabinet body (10), and the translation drive mechanism (30) drives the sliding cabinet unit (40) to slide, characterized in that: The cabinet body (10) includes a cabinet frame (11) and a storage cabinet assembly (12) installed at the lower end of the cabinet frame (11); the cabinet frame (11) includes a front frame plate (112) and a back frame plate (113); a hollow frame chamber is formed between the front frame plate (112) and the back frame plate (113); a window is provided on the front frame plate (112); and a screen (101) is installed in the frame chamber adjacent to the back frame plate (113); The storage cabinet assembly (12) has a top plate (121), the top plate (121) is provided with a transversely extending guide groove (1211), and a tooth groove (1212) is formed on the side surface of the guide groove (1211); The sliding cabinet unit (40) can be installed in the frame chamber in a transversely slidable manner, and includes a frame body and a back plate (41) formed on the rear side of the frame body, a corner groove (411) is longitudinally opened on one side of the back plate (41), and shaft sleeve blocks are provided at both ends of the corner groove (411); The projection cabinet further comprises a cleaning mechanism (50), the cleaning mechanism (50) comprising a roller (51) and a brush (52), the roller (51) comprising a cylinder (511) and a toothed disc (513), the top end of the cylinder (511) being rotatably mounted on a shaft sleeve block at the upper end, the lower end of the cylinder (511) passing through the shaft sleeve block at the lower end, the toothed disc (513) being fixedly mounted on the bottom end of the cylinder (511) and engaging with a toothed groove (1212) in a guide groove (1211), so that when the sliding cabinet unit (40) slides, the toothed disc (513) rotates along the toothed groove (1212) in the guide groove (1211), causing the cylinder (511) with the brush (52) to rotate, thereby driving the brush (52) to clean the screen (101), thereby achieving cleaning while the sliding cabinet unit (40) moves.

2. The projection cabinet with a screen self-cleaning function according to claim 1, characterized in that: The size of the screen (101) is comparable to that of the window, and there are two sliding cabinet units (40) that slide relatively far away or close to each other. When sliding to abutment, the two sliding cabinet units (40) correspond to the size of the window and cover the window. When the two sliding cabinet units (40) slide to both sides of the front frame plate (112), they are hidden.

3. The projection cabinet with a screen self-cleaning function according to claim 2, characterized in that: The projection device (20) comprises a box body, a projector installed in the box body, and a heat dissipation device. A groove (21) is provided on the upper surface of the box body. A projection window (22) is horizontally provided in the groove (21). A heat dissipation port (23) is provided on the rear side of the groove (21).

4. The projection cabinet with a screen self-cleaning function according to claim 1, characterized in that: The translation drive mechanism (30) comprises a slide rail beam (31), a hanger (32), a first motor (33), a gear and a toothed belt (34). The slide rail beam (31) is mounted on the top of the cabinet frame (11). The first motor (33) is mounted on one end of the slide rail beam (31). There are two gears, which are respectively mounted on the two ends of the slide rail beam (31), and the gear at one end is sleeved on the output shaft of the first motor (33). The toothed belt (34) is wrapped around the gears at both ends to form an upper and lower belt layer. There are multiple hangers (32) which are slidably overlapped on the slide rail beam (31). Some of the hangers (32) are clamped with the upper belt layer of the toothed belt (34), and the remaining hangers (32) are clamped with the lower belt layer of the toothed belt (34).

5. The projection cabinet with a screen self-cleaning function according to claim 4, characterized in that: There are two sliding cabinet units (40), one of which is connected to a plurality of hangers (32) clamped to the upper belt layer, and the other is connected to a plurality of hangers (32) clamped to the lower belt layer.

6. The projection cabinet with a screen self-cleaning function according to claim 1, characterized in that: The cleaning mechanism (50) includes an exhaust mechanism (53), the roller (51) adopts a hollow cylinder, the circumferential surface of the roller (51) is evenly staggered with dust suction holes (512), the top of the roller (51) is provided with a chamber connected to the inside of the roller (51), and the exhaust mechanism (53) adopts an exhaust fan, and is provided with an exhaust pipe connected to the chamber on the shaft sleeve of the roller (51).

7. The projection cabinet with a screen self-cleaning function according to claim 1, characterized in that: The circumferential surface of the drum (51) is evenly and staggeredly provided with dust suction holes (512). The exhaust mechanism (53) comprises a second motor, a rotating shaft (531) and an impeller (532). A fixed plate (413) is provided on the back plate (41). The fixed plate (413) is located on the upper side of the shaft sleeve block. The second motor is mounted on the fixed plate (413). The output shaft of the second motor is connected to the rotating shaft (531). The rotating shaft (531) is sleeved in the drum (51). The impeller (532) is fixed on the rotating shaft (531) at equal intervals. The impeller (532) of the rotating shaft (531) is driven by the second motor to rotate so as to suck air into the dust suction holes (512).

8. The projection cabinet with a screen self-cleaning function according to claim 7, characterized in that: A corresponding chamber is provided on the shaft sleeve block where the top end of the roller (51) is located and is communicated with the inside of the roller (51). Air is sucked into the dust suction hole (512) and discharged from the chamber on the shaft sleeve block.

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