Hidden lifting rotary projector

Abstract

The utility model discloses a hidden lifting rotary projector, which comprises a main shell, a base, a rotary lifting module, a projector placing platform and a projector module, the projector module is arranged in the projector placing platform, the rotary lifting module controls rotation and lifting of the projector placing platform, and the rotary lifting module comprises a rotary mother ring, an annular semi-convex rack, an annular semi-concave rack, a rotary son ring and a rack piece; the rotary lifting module is arranged to control rotation and lifting of the projector placement platform, vertical angle adjustment and horizontal angle adjustment of the projector are achieved, compared with a ceiling type projector, the projector can move in the whole house range, the occupied space is reduced, the integration degree with home furnishing is high, the position and angle can be accurately adjusted, and the projector is convenient to use. And the projector is prevented from being damaged by falling due to impact force.

Description

TECHNICAL FIELD

[0001] The utility model discloses projector technical field, specifically related to a hidden lifting rotary projector. BACKGROUND

[0002] The projector is a kind of optical instrument for magnifying the profile of workpiece and projecting it onto screen. Nowadays, more and more families give up installing TV and choose projector, but most of the household projectors on the market are installed by the way of support suspension, usually vertical suspension type or support platform type. Although this installation method can effectively support the projector, it occupies a large amount of indoor space and destroys the overall aesthetic degree of home environment. These supports are usually exposed, cannot be integrated with various indoor decoration styles, and look conspicuous and inharmonious. In addition, these supports are mostly fixed, and the range of angle and height adjustment is limited, so they cannot well adapt to different room layouts and use requirements. Users may need to manually adjust the position and angle of the projector frequently during use, increasing the inconvenience of use. Therefore, the utility model provides a hidden lifting rotary projector. UTILITY MODEL CONTENT

[0003] The utility model discloses a hidden lifting rotary projector, which overcomes the shortcomings and deficiencies of the prior art by rotating and lifting the projector placing platform through a rotating and lifting module, to solve the problems raised in the background art.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] A hidden lifting rotary projector includes a main shell and a base, the main shell is installed on the base, the main shell is embedded with a central control module and a sound module, further includes a rotating and lifting module, a projector placing platform and a projector module; the projector module is arranged in the projector placing platform, and the rotating and lifting module controls the rotation and lifting of the projector placing platform.

[0006] The rotating and lifting module includes a rotating female ring, an annular half convex gear rack, an annular half concave gear rack, a rotating male ring and a gear strip, the rotating female ring is fixedly connected to the main shell, the rotating female ring top surface is provided with the annular half convex gear rack, the rotating male ring bottom surface is provided with a limiting sub-block, the limiting sub-block is limited in the limiting female block of the non-tooth surface of the annular half concave gear rack, the rotating male ring and the annular half concave gear rack are connected through a spring, the annular half convex gear rack and the annular half concave gear rack are engaged with each other, the rotating female ring and the rotating male ring are connected through a limiting ring, and the limiting ring is connected in the limiting ring groove of the rotating female ring; the gear strip is vertically arranged on the rotating male ring, and the gear strip extends into the projector placing platform from the hollow slot on the left and right sides of the bottom of the projector placing platform.

[0007] Further, the projector placing platform is provided with motors on the left and right sides, the output teeth of the motor are in mesh with the first transmission teeth, the first transmission teeth drive the second transmission wheel through the transmission rod, the second transmission wheel is fixedly connected with the projector placing platform through the fixing frame and is in mesh with the rack.

[0008] Further, the back of the rack is provided with a limiting sleeve, and the limiting column of the connecting plate in the main shell is integrally formed and nested in the limiting sleeve.

[0009] Further, the motor drives the projector placing platform to move up and down, the output teeth of the motor drive the first transmission teeth, the first transmission teeth drive the second transmission teeth, the second transmission wheel moves up and down on the rack, so that the projector placing platform rises or falls, thereby realizing the vertical angle adjustment of the projector.

[0010] Further, the rotating sub-ring can rotate with the rotating female ring, when a user rotates the projector placing platform by hand, the rack in the projector placing platform drives the rotating sub-ring to rotate, the annular semi-recessed rack at the bottom of the rotating sub-ring is pressed by the limiting female block and the limiting sub-block, and the spring is pressed until the rotating sub-ring rotates to the next tooth position, thereby realizing the horizontal angle adjustment of the projector.

[0011] Further, the tooth shape of the annular semi-recessed rack and the annular semi-projected rack is a right-angle trapezoid, and the projector placing platform can only rotate in one direction under the influence of the tooth shape.

[0012] As a preferred scheme, the top of the projector placing platform is covered by the upper cover plate.

[0013] As a preferred scheme, the bottom of the base is provided with a power cord.

[0014] Compared with the prior art, the projector placing platform has the following beneficial effects:

[0015] In the utility model, the rotation and lifting of the projector placing platform are controlled through the rotating and lifting module, the vertical angle adjustment and the horizontal angle adjustment of the projector are realized, the angle and position of the projector are conveniently adjusted by the user, the compact internal structure of the projector placing platform and the rotation adjustment of the rotating sub-ring and the rotating female ring in the main shell provide better bearing property and wear resistance, the probability that the precision is affected due to the movement and wear between components is reduced. Compared with the ceiling type projector, the projector placing platform can move in the whole house, the occupied space is reduced, the integration with the home is higher, the position and the angle can be accurately adjusted, and the projector is prevented from being damaged due to the impact force. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1The whole structure schematic diagram of the utility model is shown in the figure.

[0017] Figure 2 The whole structure explosion view of the utility model is shown in the figure.

[0018] Figure 3 The structure schematic diagram of the rotating lifting module of the utility model is shown in the figure.

[0019] Figure 4 The partial enlarged view of the lifting module of the utility model is shown in the figure.

[0020] Figure 5 The structure explosion view of the rotating module of the utility model is shown in the figure.

[0021] Figure 6 The partial enlarged view of the rotating module of the utility model is shown in the figure.

[0022] Figure 7 The top view of the whole structure of the utility model is shown in the figure.

[0023] Figure 8 The side view of the whole structure of the utility model is shown in the figure.

[0024] Figure 9 The partial structure schematic diagram of the utility model is shown in the figure.

[0025] In the figure: 1, main shell; 2, rotating lifting module; 3, projector placing platform; 4, base; 5, central control module; 6, sound module; 7, power cord; 8, projector module; 9, rotating female ring; 10, annular half convex rack; 11, annular half concave rack; 12, rotating subring; 13, rack piece; 14, limiting subblock; 15, limiting female block; 16, limiting ring; 17, limiting ring groove; 18, hollow groove; 19, motor; 20, output tooth; 21, first transmission tooth; 22, second transmission tooth; 23, limiting sleeve; 24, connecting plate; 25, limiting column; 26, upper cover plate; 27, fixed frame. DETAILED DESCRIPTION

[0026] The utility model will be described further in detail in combination with examples and drawings, but the implementation mode of the utility model is not limited to this.

[0027] Please refer to Figures 1-9 The embodiment provides a technical scheme:

[0028] The application discloses a hidden lifting rotary projector, which comprises a main shell 1, a base 4, a rotary lifting module 2, a projector placing platform and a projector module 8; the main shell 1 is installed on the base 4 and is embedded with a central control module 5 and a sound module 6; the projector module 8 is arranged in the projector placing platform 3; the rotary lifting module 2 controls the rotation and lifting of the projector placing platform 3; the rotary lifting module 2 comprises a rotary female ring 9, an annular half convex gear rack 10, an annular half concave gear rack 11, a rotary male ring 12 and a gear strip 13; the rotary female ring 9 is fixedly connected to the main shell 1 and is provided with the annular half convex gear rack 10 on the top surface; the rotary male ring 12 is provided with a limiting sub-block 14 on the bottom surface, the limiting sub-block 14 is limited in a limiting female block 15 of a toothless surface of the annular half concave gear rack 11, the rotary male ring 12 and the annular half concave gear rack 11 are connected through a spring, the annular half convex gear rack 10 and the annular half concave gear rack 11 are engaged with each other, the rotary female ring 9 and the rotary male ring 12 are connected through a limiting circular ring 16, the limiting circular ring 16 is connected in a limiting circular ring groove 17 of the rotary female ring 9; the gear strip 13 is vertically arranged on the rotary male ring 12 and extends into the projector placing platform 3 from hollow grooves 18 on the left and right sides of the bottom of the projector placing platform 3.

[0029] In the embodiment, the rotation and lifting of the projector placing platform 3 are controlled through the rotary lifting module 2, the vertical angle adjustment and the horizontal angle adjustment of the projector are realized, the angle and the position of the projector are conveniently adjusted by the user, the compact internal structure of the projector placing platform 3 and the rotation adjustment of the rotary male and female rings in the main shell 1 provide better bearing property and wear resistance, and the probability that the precision is affected due to the movement and wear between components is reduced.

[0030] In the embodiment, as shown in Figs. 1 and 2, the projector placing platform 3 is provided with a motor 19 on the left and right sides, the output gear 20 of the motor 19 is engaged with a first transmission gear 21, the first transmission gear 21 drives a second transmission gear through a transmission rod, the second transmission gear is fixedly connected with the projector placing platform 3 through a fixing frame 27 and is engaged with the gear strip 13. Figure 2 Figure 3 In order to highlight the connection relationship between the motor 19 and the gear strip 13, the projector placing platform 3 is ignored, in order to ensure the transmission of the output gear 20 of the motor 19, the first transmission gear is a gear with a smaller size, the second transmission gear is a gear with a larger size, and the two gears are connected through the transmission rod. Figure 3 ​​

[0031] In this embodiment, as Figure 4 As shown, a limiting sleeve 23 is provided on the back of the rack plate 13, and the limiting post 25 integrally formed by the connecting plate 24 in the main housing 1 is nested in the limiting sleeve 23; wherein, the purpose of connecting the connecting plate 24 and the main housing 1 in this embodiment is: 1. to ensure that the lifting motion does not deviate from the designed motion direction during the lifting process; 2. to ensure that the main housing 1 rotates with the rotating lifting module 2 during the rotation process.

[0032] In this embodiment, the rotation and lifting module 2 controls the rotation and lifting of the projector placement platform 3. The lifting and rotation movements are further explained below:

[0033] I. Lifting and lowering motion;

[0034] The motor 19 drives the projector placement platform 3 to move up and down. The output gear 20 of the motor 19 drives the first transmission gear 21, which in turn transmits the power to the second transmission gear 22. The second transmission gear 22 moves vertically up and down on the rack 13, causing the projector placement platform 3 to rise or fall, thereby achieving vertical angle adjustment of the projector.

[0035] II. Rotational motion;

[0036] The rotating sub-ring 12 can rotate with the rotating mother ring 9. When the user rotates the projector placement platform 3 by hand, the rack 13 inside the projector placement platform 3 drives the rotating sub-ring 12 to rotate. The annular semi-concave rack 11 at the bottom of the rotating sub-ring 12 is affected by the limiting mother block 15 and the limiting sub-block 14, and squeezes the spring until it rotates to the next tooth position, thereby realizing the horizontal angle adjustment of the projector.

[0037] In this embodiment, as Figure 5 As shown, the tooth shape of the annular semi-concave rack 11 and the annular semi-convex rack 10 is a right trapezoid. Due to the influence of this tooth shape, the projector placement platform 3 can only rotate in one direction. The rotation accuracy depends on the tooth spacing of the rotating mother ring 9. The smaller the spacing, the more accurate the accuracy. Conversely, the larger the spacing, the coarser the accuracy.

[0038] To further improve the sealing performance of this embodiment, such as Figure 2 As shown, the top of the projector placement platform 3 is covered by an upper cover plate 26.

[0039] In this embodiment, as Figure 1 As shown, a power cord 7 is provided at the bottom of the base 4; in this embodiment, the base 4 is made of a wooden surrounding plywood, which is rigidly connected to the main housing 1 to ensure stable support.

[0040] It is needed to emphasize that the control relationship between the central control module 5 and each module in the embodiment is the existing disclosed content, and the embodiment does not make any improvement and innovation, and belongs to the content which can be known by the person skilled in the art according to the embodiment and the existing disclosed document. The control relationship and connection relationship between the central control module 5 and other modules are further described as follows: the central control module 5 is connected with the power supply, the projector module 8, the motor 19 and the sound module 6, the whole circuit is controlled to be connected through the circuit switch, the signal port of the central control module 5 is connected with the projector module 8 and the sound module 6 to control the sound and picture, and the motor 19 is controlled to start and stop through the switch of the central control module 5.

[0041] The above is the preferred embodiment of the utility model, but the embodiment of the utility model is not limited by the above content, any change, modification, replacement, combination, simplification made without departing from the spirit and principle of the utility model should be equivalent replacement mode, and all are included in the protection scope of the utility model.

Claims

1. A hidden lift-rotary projector, comprising a main casing and a base, the main casing is installed on the base, the main casing is embedded with a central control module and a sound module, characterized in that, Also include a rotating lifting module, a projector placement platform, and a projector module; the projector module is arranged in the projector placement platform, and the rotating lifting module controls the rotation and lifting of the projector placement platform; The rotating lifting module includes a rotating female ring, an annular half convex rack, an annular half concave rack, a rotating sub-ring, and a rack piece. The rotating female ring is fixedly connected to the main shell, and the rotating female ring top surface is provided with an annular half convex rack. The rotating sub-ring bottom surface is provided with a limiting sub-block, which is limited in the limiting female block of the annular half concave rack toothless surface. The rotating sub-ring and the annular half concave rack are connected through a spring. The annular half convex rack and the annular half concave rack are engaged with each other. The rotating female ring and the rotating sub-ring are connected through a limiting circular ring. The limiting circular ring is connected to the limiting circular ring groove of the rotating female ring. The rack piece is vertically arranged on the rotating sub-ring, and the rack piece extends into the projector placement platform from the hollow groove on the left and right sides of the bottom of the projector placement platform.

2. The hidden lift-and-rotate projector of claim 1, wherein, The left and right sides of the projector placement platform are provided with a motor, and the output teeth of the motor are engaged with the first transmission teeth. The first transmission teeth drive the second transmission teeth through a transmission rod. The second transmission teeth are fixedly connected to the projector placement platform through a fixed frame, and the second transmission teeth are engaged with the rack piece.

3. A hidden lift-and-rotate projector according to claim 2, wherein, The back of the rack piece is provided with a limiting sleeve, and the limiting column of the connecting plate integrally formed in the main shell is nested in the limiting sleeve.

4. The hidden lift-and-rotate projector of claim 2, wherein, The motor drive makes the projector placement platform move up and down. The output teeth of the motor drive the first transmission teeth, and then drive the second transmission teeth. The second transmission gear makes the rack piece move vertically up and down, so that the projector placement platform rises or falls, thereby realizing the vertical angle adjustment of the projector.

5. The hidden lift-and-rotate projector of claim 2, wherein, The rotating sub-ring can rotate with the rotating female ring. When the user rotates the projector placement platform by hand, the rack piece in the projector placement platform drives the rotating sub-ring to rotate. The annular half concave rack at the bottom of the rotating sub-ring is affected by the limiting female block and the limiting sub-block, and the spring is extruded until it rotates to the next tooth position, thereby realizing the horizontal angle adjustment of the projector.

6. A hidden lift-and-rotate projector according to claim 5, wherein, The teeth of the annular half concave rack and the annular half convex rack are right trapezoids. Affected by the tooth shape, the projector placement platform can only rotate in one direction.

7. The hidden lift-and-rotate projector of claim 1, wherein, The top of the projector placement platform is covered by an upper cover plate.

8. The hidden lift-and-rotate projector of claim 1, wherein, The bottom of the base is provided with a power cord.

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