Horizontally rotate the shading mechanism and the corresponding projection lamp

Abstract

This divisional application provides a transversely-swinging shading mechanism and a corresponding projection lamp. The projection lamp includes a lamp holder and a lamp shade connected together. A corrugated sheet assembly is arranged in the space enclosed by the lamp holder and the lamp shade. An optical assembly is arranged between the corrugated sheet assembly and the lamp holder. A light source is arranged between the optical assembly and the lamp holder. A transversely-swinging shading mechanism is arranged between the corrugated sheet assembly and the lamp shade. The light emitted by the light source passes through the optical assembly, the corrugated sheet assembly, the transversely-swinging shading mechanism and the lamp shade to produce a landscape projection. The device drives the corrugated sheet assembly to perform forward and reverse variable speed intermittent rotational motion by setting a first transmission mechanism, so that the refraction and reflection paths of the light source are changed. The device drives the transversely-swinging shading mechanism to perform a transverse opening and closing motion by setting a second transmission mechanism to change the projection range. The light emitted by the light source passes through the optical assembly, the corrugated sheet assembly, the transversely-swinging shading mechanism and the lamp shade to produce a variety of northern lights landscape projections.

Description

[0001] This application is a divisional application. The application number of the original application is: "202111391113.5", the application date is: "November 22, 2021", and the name of the invention is: "Aurora borealis projection lamp with a laterally swing-open shading mechanism". Technical Field

[0002] The invention relates to the field of projection lamps, and in particular to a transversely rotating shading mechanism and a corresponding projection lamp. Background Art

[0003] Projection lamps can be used in various outdoor or indoor occasions, using lamps to directly project a starry sky or other environmental projection shapes, thereby creating a corresponding atmosphere. Existing projection lamps have a single lighting effect, few shape changes, and are generally static.

[0004] Therefore, it is necessary to provide a transversely rotating shading mechanism and a corresponding projection lamp to solve the above technical problems. Summary of the invention

[0005] The invention provides a transversely rotating shading mechanism and a corresponding projection lamp, so as to solve the problem that the projection lamp in the prior art has a single projection pattern state.

[0006] In order to solve the above technical problems, the technical solution of the present invention is: a transversely rotating shading mechanism, which is connected to a lamp holder, one end of which is connected to a lamp shade, a light source, a second transmission mechanism, and a dual-axis motor are arranged in the lamp holder, and the transversely rotating shading mechanism is located between the light source and the lamp shade to change the projection range of the light source;

[0007] The transversely rotating shading mechanism comprises a fixed frame, on which a shading gear ring and a plurality of shading gears are arranged, the fixed frame and the shading gear ring are movably connected together, a plurality of the shading gears are circumferentially arranged on the inner side surface of the shading gear ring, and a plurality of the shading gears are meshed with the shading gear ring, and each of the shading gears is correspondingly connected to a shading blade;

[0008] One of the shading gears is connected to the second transmission mechanism, the second transmission mechanism is connected to the dual-axis motor, and the transversely rotating shading mechanism performs a transverse opening and closing movement driven by the second transmission mechanism.

[0009] In the present invention, the second transmission mechanism comprises a second reversing gear plate, a second central gear is arranged at the center of the second reversing gear plate, a second reversing gear ring is arranged on the inner side of the second reversing gear plate, the second central gear is an incomplete gear, the second reversing gear ring is an incomplete gear ring, the gear teeth of the second central gear and the gear teeth on the second reversing gear ring are located on different sides, a second reversing gear is arranged between the second central gear and the second reversing gear ring, and the second reversing gear is a complete gear;

[0010] When the second reversing gear is meshed with the second sun gear, the second reversing gear is disengaged from the second reversing gear ring; when the second reversing gear is meshed with the first reversing gear ring, the second reversing gear is disengaged from the second sun gear, thereby realizing the forward and reverse rotation of the second reversing gear.

[0011] Wherein, the outer edge of the second central gear and the inner side surface of the second reversing gear ring are both composed of a gear tooth portion and a smooth portion.

[0012] In addition, one of the light-shielding gears is fixedly connected to the second reversing gear via a second transmission shaft, and the second reversing gear drives one of the light-shielding gears to rotate via the second transmission shaft, and the light-shielding gear drives the light-shielding gear ring to rotate and drives the remaining light-shielding gears to rotate together, thereby driving all the light-shielding blades to rotate horizontally in both directions, thereby realizing the horizontal opening and closing movement of the horizontally rotating light-shielding mechanism.

[0013] Furthermore, the bottom of the lampshade is provided with a plurality of avoidance holes for the shading blades to extend out.

[0014] In the present invention, a bearing is provided between the fixing frame and the light-shielding gear ring; the second transmission shaft is connected to the fixing frame via the bearing, and a mounting hole for the second transmission shaft to pass through is provided on the fixing frame.

[0015] The present invention also includes a projection lamp, which uses the above-mentioned transversely rotating shading mechanism, and also includes a corrugated sheet assembly and a first transmission mechanism, the corrugated sheet assembly includes a first corrugated sheet, a second corrugated sheet and a third corrugated sheet connected in series, the first corrugated sheet, the second corrugated sheet and the third corrugated sheet perform forward and reverse speed intermittent rotational motion under the drive of the first transmission mechanism, the light source is located between the corrugated sheet assembly and the lamp holder, the forward disk surface and the reverse disk surface of the first corrugated sheet, the forward disk surface and the reverse disk surface of the second corrugated sheet, and the forward disk surface and the reverse disk surface of the third corrugated sheet are all provided with irregular protrusions, and the light emitted by the light source passes through the corrugated sheet assembly, the transversely rotating shading mechanism and the lampshade to produce a landscape projection.

[0016] In the present invention, a first supporting sleeve is fixedly provided at the bottom of the first corrugated sheet, a second supporting sleeve is fixedly provided at the bottom of the second corrugated sheet, a supporting rod is fixedly provided at the bottom of the third corrugated sheet, the second supporting sleeve is sleeved outside the supporting rod, and the first supporting sleeve is sleeved outside the second supporting sleeve; the lower part of the supporting rod is connected to the lamp holder through a bearing;

[0017] The upper part of the second support sleeve is provided with a first limiting step, the upper part of the first support sleeve abuts against the first limiting step for limiting position, the lower part of the second support sleeve is provided with a first limiting block, the lower part of the first support sleeve abuts against the first limiting block for limiting position, and the first limiting block is fixedly connected with the second support sleeve by means of a set screw;

[0018] The upper part of the support rod is provided with a second limiting step, the upper part of the second support sleeve abuts against the second limiting step for limiting position, the lower part of the support rod is provided with a second limiting block, the lower part of the second support sleeve abuts against the second limiting block for limiting position, and the second limiting block is fixedly connected to the support rod by means of a set screw;

[0019] Bearings are arranged between the first supporting sleeve and the second supporting sleeve, and between the second supporting sleeve and the supporting rod.

[0020] Further, the first transmission mechanism includes a first reversing gear plate, a first central gear is arranged at the center of the first reversing gear plate, a first reversing gear ring is arranged on the inner side surface of the first reversing gear plate, the first central gear is an incomplete gear, the first reversing gear ring is an incomplete gear ring, the outer edge of the first central gear and the inner side surface of the first reversing gear ring are both composed of a gear tooth portion and a smooth portion, the gear tooth portion of the first central gear and the gear tooth portion on the first reversing gear ring are located on different sides, a first reversing gear is arranged between the first central gear and the first reversing gear ring, and the first reversing gear is a complete gear;

[0021] When the first reversing gear is meshed with the first sun gear, the first reversing gear is disengaged from the first reversing gear ring; when the first reversing gear is meshed with the first reversing gear ring, the first reversing gear is disengaged from the first sun gear, thereby realizing the forward and reverse rotation of the first reversing gear;

[0022] The first transmission mechanism further comprises a first transmission gear, a second transmission gear and a third transmission gear, the first reversing gear, the first transmission gear, the second transmission gear and the third transmission gear are coaxially arranged, and the first reversing gear, the first transmission gear, the second transmission gear and the third transmission gear are all fixedly connected with the first transmission shaft, and the first transmission shaft, the first reversing gear, the first transmission gear, the second transmission gear and the third transmission gear are connected as a whole by a key;

[0023] The first transmission gear is meshed with the first connecting gear, the first connecting gear is fixedly connected with the first supporting sleeve, and the first transmission gear drives the first corrugated sheet to rotate through the first connecting gear and the first supporting sleeve;

[0024] The second transmission gear is meshed with the second connecting gear, the second connecting gear is fixedly connected with the second supporting sleeve, and the second transmission gear drives the second corrugated sheet to rotate through the second connecting gear and the second supporting sleeve;

[0025] The third transmission gear is meshed with the third connecting gear, the third connecting gear is fixedly connected with the support rod, and the third transmission gear drives the third corrugated sheet to rotate through the third connecting gear and the support rod;

[0026] Furthermore, the third transmission gear, the first connecting gear, the second connecting gear and the third connecting gear are all complete gears, the first transmission gear and the second transmission gear are both incomplete gears, the outer edge of the first transmission gear and the outer edge of the second transmission gear are both composed of a gear tooth portion and a smooth portion, and the smooth portion of the first transmission gear and the smooth portion of the second transmission gear are staggered.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The device drives the corrugated sheet assembly to perform forward and reverse intermittent rotational motion by setting a first transmission mechanism, so that the refraction and reflection paths of the light source change. The light emitted by the light source passes through the optical component, the corrugated sheet assembly and the lampshade to produce a variety of northern lights landscape projections, which are closer to the real northern lights projection and achieve a changing lighting effect;

[0029] 2. This device is provided with a second transmission mechanism to drive the horizontally rotating shading mechanism to perform horizontal opening and closing movements, thereby changing the projection range of the northern lights landscape projection produced after the light emitted by the light source passes through the optical component and the corrugated sheet component, and realizing the change of the projection range gradually increasing or decreasing.

[0030] 3. The first transmission mechanism and the second transmission mechanism in the device are driven by a dual-axis motor. The overall device only needs to set one power output position, and the structural design is reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. The drawings described below are only drawings corresponding to some embodiments of the present invention.

[0032] Figure 1 It is a schematic diagram of the internal structure of the present invention.

[0033] Figure 2 It is a schematic structural diagram of the corrugated sheet assembly of the present invention.

[0034] Figure 3 It is a schematic structural diagram of the lampshade of the present invention.

[0035] Figure 4 It is a schematic structural diagram of the first corrugated sheet of the present invention.

[0036] Figure 5 It is a schematic structural diagram of the second corrugated sheet of the present invention.

[0037] Figure 6 It is a schematic structural diagram of the third corrugated sheet of the present invention.

[0038] Figure 7 It is a schematic structural diagram of the first reversing gear plate and the first reversing gear of the present invention.

[0039] Figure 8 It is a schematic structural diagram of the first reversing gear plate of the present invention.

[0040] Fig. 9 It is a partial structural schematic diagram of the first transmission mechanism of the present invention.

[0041] Fig.10 It is a schematic structural diagram of the second reversing gear plate of the present invention.

[0042] Fig.11 It is a partial structural schematic diagram of the laterally twistable shading mechanism of the present invention.

[0043] Fig.12 It is a partial structural schematic diagram of the laterally twistable shading mechanism of the present invention.

[0044] in,

[0045] 1- Lamp holder;

[0046] 2-lampshade, 21-stripes;

[0047] 3-corrugated sheet assembly, 31-first corrugated sheet, 32-second corrugated sheet, 33-third corrugated sheet, 34-first supporting sleeve, 35-second supporting sleeve, 36-support rod, 37-first limiting step, 38-first limiting block, 39-second limiting step, 310-second limiting block, 311-irregular protrusion;

[0048] 4-first transmission mechanism, 41-first reversing gear plate, 41a-first central gear, 41b-first reversing gear ring, 42-first reversing gear, 43-first transmission gear, 44-second transmission gear, 45-third transmission gear, 46-first transmission shaft, 47-first connecting gear, 48-second connecting gear, 49-third connecting gear;

[0049] 5- Optical components;

[0050] 6- Light source;

[0051] 7-transversely rotate the shading mechanism, 71-fixed frame, 72-shading gear ring, 73-shading gear, 74-shading blade, 75-avoidance hole;

[0052] 8-second transmission mechanism, 81-second reversing gear plate, 81a-second central gear, 81b-second reversing gear ring, 82-second reversing gear, 83-second transmission shaft;

[0053] 9-Dual-axis motor;

[0054] 10-aluminum substrate;

[0055] 11- heat dissipation blades;

[0056] 12- air inlet channel;

[0057] 13-Air outlet. DETAILED DESCRIPTION

[0058] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0059] The directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", "top" and "bottom", are only for reference to the orientation of the drawings. The directional terms used are used to illustrate and understand the present invention, but not to limit the present invention.

[0060] The terms "first", "second", etc. in the present invention are used for descriptive purposes only and should not be understood as indicating or implying relative importance, and should not be used as a limitation on the order of precedence.

[0061] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] The lighting effect of the projection lamp in the prior art is single.

[0063] The following is a preferred embodiment of a projection lamp with a transversely rotating shading mechanism provided by the present invention that can solve the above technical problems.

[0064] Please refer to Figure 1-Figure 12 , Figure 1 It is a schematic diagram of the internal structure of the present invention, Figure 2 is a schematic diagram of the structure of the corrugated sheet assembly of the present invention, Figure 3 is a schematic structural diagram of the lampshade of the present invention, Figure 4 is a schematic structural diagram of the first corrugated sheet of the present invention, Figure 5 is a schematic structural diagram of the second corrugated sheet of the present invention, Figure 6 is a schematic structural diagram of a third corrugated sheet of the present invention, Figure 7 is a schematic structural diagram of the first reversing gear plate and the first reversing gear of the present invention, Figure 8 is a schematic structural diagram of the first reversing gear plate of the present invention, Fig. 9 is a partial structural schematic diagram of the first transmission mechanism of the present invention, Fig.10 is a schematic structural diagram of the second reversing gear plate of the present invention, Fig.11 It is a partial structural diagram of the lateral rotation shading mechanism 7 of the present invention. Fig.12 It is a partial structural schematic diagram of the transversely rotating shading mechanism 7 of the present invention.

[0065] In the figures, structurally similar elements are denoted by the same reference numerals.

[0066] The present invention provides a projection lamp with a transversely rotating shading mechanism, which comprises: a lamp holder 1 and a lamp shade 2 connected together, a corrugated sheet assembly 3 is arranged in the space surrounded by the lamp holder 1 and the lamp shade 2, the corrugated sheet assembly 3 comprises a first corrugated sheet 31, a second corrugated sheet 32 ​​and a third corrugated sheet 33 connected in series, the first corrugated sheet 31, the second corrugated sheet 32 ​​and the third corrugated sheet 33 are driven by a first transmission mechanism 4 to perform forward and reverse variable speed intermittent rotation motion; an optical component 5 is arranged between the corrugated sheet assembly 3 and the lamp holder 1, and an optical component 5 is arranged between the optical component 5 and the lamp holder 1. A transversely rotating shading mechanism 7 is arranged between the source 6, the corrugated sheet assembly 3 and the lampshade 2. The transversely rotating shading mechanism 7 performs a transverse opening and closing movement driven by the second transmission mechanism 8. The light emitted by the light source 6 passes through the optical component 5, the corrugated sheet assembly 3, the transversely rotating shading mechanism 7 and the lampshade 2 to produce a landscape projection. The transversely rotating shading mechanism 7 changes the projection range of the landscape projection produced after the light emitted by the light source passes through the optical component 5 and the corrugated sheet assembly 3, thereby realizing a change in the projection range that gradually increases or decreases, such as simulating the projection effect of a changeable aurora borealis.

[0067] In the projection lamp with a laterally-swinging shading mechanism of the present invention,

[0068] A first supporting sleeve 34 is fixedly provided at the bottom of the first corrugated sheet 31, a second supporting sleeve 35 is fixedly provided at the bottom of the second corrugated sheet 32, a supporting rod 36 is fixedly provided at the bottom of the third corrugated sheet 33, the second supporting sleeve 35 is sleeved outside the supporting rod 36, and the first supporting sleeve 34 is sleeved outside the second supporting sleeve 35;

[0069] The lower part of the support rod 36 is connected to the lamp holder 1 through a bearing;

[0070] The upper part of the second support sleeve 35 is provided with a first limiting step 37, and the upper part of the first support sleeve 34 abuts against the first limiting step 37 for limiting position. The lower part of the second support sleeve 35 is provided with a first limiting block 38, and the lower part of the first support sleeve 34 abuts against the first limiting block 38 for limiting position. The first limiting block 38 can be fixedly connected with the second support sleeve 35 by means of threads, set screws or interference fit.

[0071] The upper part of the support rod 36 is provided with a second limiting step 39, and the upper part of the second support sleeve 35 abuts against the second limiting step 39 for limiting position. The lower part of the support rod 36 is provided with a second limiting block 310, and the lower part of the second support sleeve 35 abuts against the second limiting block 310 for limiting position. The second limiting block 310 can be fixedly connected with the support rod 36 by means of threads, set screws or interference fit.

[0072] Bearings are provided between the first support sleeve 34 and the second support sleeve 35, and between the second support sleeve 35 and the support rod 36, and the installation of the first support sleeve 34, the second support sleeve 35 and the support rod 36 is based on their free rotation; or there is a rotation gap between the first support sleeve 34 and the second support sleeve 35, and between the second support sleeve 35 and the support rod 36, and the rotation gap is coated with lubricating oil, and the installation of the first support sleeve 34, the second support sleeve 35 and the support rod 36 is based on their free rotation.

[0073] In the projection lamp with a laterally-swinging shading mechanism of the present invention,

[0074] The first transmission mechanism 4 includes a first reversing gear plate 41, a first central gear 41a is arranged at the center of the first reversing gear plate 41, a first reversing gear ring 41b is arranged on the inner side surface of the first reversing gear plate 41, the first central gear 41a and the first reversing gear ring 41b are made of one piece, the first central gear 41a is an incomplete gear, the first reversing gear ring 41b is an incomplete gear ring, the outer edge of the first central gear 41a and the inner side surface of the first reversing gear ring 41b are both composed of a gear tooth portion and a smooth portion, the gear tooth portion of the first central gear 41a and the gear tooth portion on the first reversing gear ring 41b are located on different sides, a first reversing gear 42 is arranged between the first central gear 41a and the first reversing gear ring 41b, and the first reversing gear 42 is a complete gear; the gear teeth of the first central gear 41a and the gear teeth of the first reversing gear ring 41b are arranged so as not to interfere with the first reversing gear 42.

[0075] When the first reversing gear 42 is meshed with the first central gear 41a, the first reversing gear 42 is disengaged from the first reversing gear ring 41b; when the first reversing gear 42 is meshed with the first reversing gear ring 41b, the first reversing gear 42 is disengaged from the first central gear 41a, thereby realizing the forward and reverse rotation of the first reversing gear 42;

[0076] The first transmission mechanism 4 further includes a first transmission gear 43, a second transmission gear 44 and a third transmission gear 45. The first reversing gear 42, the first transmission gear 43, the second transmission gear 44 and the third transmission gear 45 are coaxially arranged, and the first reversing gear 42, the first transmission gear 43, the second transmission gear 44 and the third transmission gear 45 are all fixedly connected with the first transmission shaft 46; the first reversing gear 42 is connected to one end of the first transmission shaft 46, and the other end of the first transmission shaft 46 is connected to the lamp holder 1 through a bearing, so as to realize the rotation and support of the first transmission shaft 46; the first transmission shaft 46, the first reversing gear 42, the first transmission gear 43, the second transmission gear 44 and the third transmission gear 45 are connected as a whole and rotate in the same direction at the same time; the first transmission shaft 46, the first reversing gear 42, the first transmission gear 43, the second transmission gear 44 and the third transmission gear 45 can be connected as a whole by key connection, fixed connection, screw connection, etc., and the connection method is determined according to actual conditions and is not limited thereto.

[0077] The first transmission gear 43 is meshed with the first connecting gear 47, and the first connecting gear 47 is fixedly connected with the first supporting sleeve 34. The first transmission gear 43 drives the first corrugated sheet 31 to rotate through the first connecting gear 47 and the first supporting sleeve 34.

[0078] The second transmission gear 44 is meshed with the second connecting gear 48, and the second connecting gear 48 is fixedly connected with the second supporting sleeve 35. The second transmission gear 44 drives the second corrugated sheet 32 ​​to rotate through the second connecting gear 48 and the second supporting sleeve 35.

[0079] The third transmission gear 45 is meshed with the third connecting gear 49, and the third connecting gear 49 is fixedly connected with the support rod 36. The third transmission gear 45 drives the third corrugated sheet 33 to rotate through the third connecting gear 49 and the support rod 36.

[0080] The third transmission gear 45, the first connecting gear 47, the second connecting gear 48 and the third connecting gear 49 are all complete gears, the first transmission gear 43 and the second transmission gear 44 are all incomplete gears, the outer edges of the first transmission gear 43 and the outer edges of the second transmission gear 44 are both composed of a gear tooth portion and a smooth portion, and the smooth portion of the first transmission gear 43 and the smooth portion of the second transmission gear 44 are staggered;

[0081] Since the third transmission gear 45 is a complete gear, the third connecting gear 49 is always rotating; when the first transmission gear 43 is engaged with the first connecting gear 47, the first connecting gear 47 rotates, and when the first transmission gear 43 is disengaged from the first connecting gear 47, the first connecting gear 47 stops rotating; when the second transmission gear 44 is engaged with the second connecting gear 48, the second connecting gear 48 rotates, and when the second transmission gear 44 is disengaged from the second connecting gear 48, the second connecting gear 48 stops rotating; therefore, the first connecting gear 47 and the second connecting gear 48 both rotate intermittently.

[0082] Since the radius of the first central gear 41a is not equal to the radius of the first reversing gear ring 41b, and the angular velocities of the two are equal, according to the formula linear velocity V=radius r×angular velocity ω, the first reversing gear 42 performs forward and reverse speed-changing motion.

[0083] By setting the number of teeth of the first connecting gear 47 to be different from that of the second connecting gear 48, and the tooth portions of the first connecting gear 47 and the second connecting gear 48 to be arranged at different positions, the following combinations are possible:

[0084] 1. The first corrugated sheet 31 rotates, the second corrugated sheet 32 ​​is stationary, and the third corrugated sheet 33 rotates;

[0085] 2. The first corrugated sheet 31 is stationary, the second corrugated sheet 32 ​​rotates, and the third corrugated sheet 33 rotates;

[0086] 3. The first corrugated sheet 31 rotates, the second corrugated sheet 32 ​​rotates, and the third corrugated sheet 33 rotates;

[0087] 4. The first corrugated sheet 31 is stationary, the second corrugated sheet 32 ​​is stationary, and the third corrugated sheet 33 rotates;

[0088] With the intermittent rotation of the first connecting gear 47 and the second connecting gear 48 and the forward and reverse speed-changing motion of the first reversing gear 42, the first corrugated sheet 31, the second corrugated sheet 32 ​​and the third corrugated sheet 33 change the refraction and reflection paths of the light source during the changes between rotation and stillness, thereby increasing the changes in the projection form and being closer to the real aurora borealis projection.

[0089] In the projection lamp with a laterally-swinging shading mechanism of the present invention,

[0090] The second transmission mechanism 8 includes a second reversing gear plate 81, a second central gear 81a is arranged at the center of the second reversing gear plate 81, a second reversing gear ring 81b is arranged on the inner side surface of the second reversing gear plate 81, the second central gear 81a and the second reversing gear ring 81b are made of one piece, the second central gear 81a is an incomplete gear, the second reversing gear ring 81b is an incomplete gear ring, the outer edge of the second central gear 81a and the inner side surface of the second reversing gear ring 81b are both composed of a gear tooth portion and a smooth portion, the gear tooth portion of the second central gear 81a and the gear tooth portion on the second reversing gear ring 81b are located on different sides, a second reversing gear 82 is arranged between the second central gear 81a and the second reversing gear ring 81b, and the second reversing gear 82 is a complete gear; the gear teeth of the second central gear 81a and the gear teeth of the second reversing gear ring 81b are arranged so as not to interfere with the second reversing gear 82.

[0091] When the second reversing gear 82 is meshed with the second central gear 81a, the second reversing gear 82 is disengaged from the second reversing gear ring 81b; when the second reversing gear 82 is meshed with the first reversing gear ring 41b, the second reversing gear 82 is disengaged from the second central gear 81a, thereby realizing the forward and reverse rotation of the second reversing gear 82.

[0092] In the projection lamp with a laterally-swinging shading mechanism of the present invention,

[0093] The laterally twistable shading mechanism 7 includes a fixed frame 71, on which a shading gear ring 72 and a plurality of shading gears 73 are provided. The plurality of shading gears 73 are circumferentially arranged on the inner side of the shading gear ring 72, and the plurality of shading gears 73 are all meshed with the shading gear ring 72, and each shading gear 73 is correspondingly connected with a shading blade 74; the fixed frame 71 supports the shading gear ring 72 and the plurality of shading gears 73, and in order for the shading gear ring 72 to rotate better, a bearing is provided between the fixed frame 71 and the shading gear ring 72; in order for the second transmission shaft to rotate better, the second transmission shaft 83 is also connected to the fixed frame 71 through a bearing, and the fixed frame 71 is also provided with a mounting hole for the second transmission shaft 83 to pass through.

[0094] One of the shading gears 73 is fixedly connected to the second reversing gear 82 via the second transmission shaft 83, and the second reversing gear 82 drives one of the shading gears 73 to rotate via the second transmission shaft 83, and one of the shading gears 73 drives the shading gear ring 72 to rotate, and drives the remaining shading gears 73 to rotate together, thereby driving all the shading blades 74 to rotate horizontally in both directions, realizing the horizontal opening and closing movement of the horizontally rotating shading mechanism 7; several shading blades 74 perform horizontal opening and closing movement driven by the second transmission mechanism 8, which is beautiful and ornamental.

[0095] In the projection lamp with a laterally twistable shading mechanism of the present invention, a plurality of avoidance holes 75 for the shading blades 74 to extend are arranged at the bottom of the lampshade 2 .

[0096] In the projection lamp with a laterally rotating shading mechanism of the present invention, the first transmission mechanism 4 and the second transmission mechanism 8 are both driven by a dual-axis motor 9, the first reversing gear 42 disk 41 is connected to an output shaft of the dual-axis motor 9, and the second reversing gear disk 81 is connected to the other output shaft of the dual-axis motor 9.

[0097] In the projection lamp with a laterally-swinging shading mechanism of the present invention,

[0098] The disk surface of the first corrugated sheet 31, the disk surface of the second corrugated sheet 32 ​​and the disk surface of the third corrugated sheet 33 are all provided with irregular protrusions 311. The positive disk surface of the first corrugated sheet 31, the reverse disk surface of the first corrugated sheet 31, the positive disk surface of the second corrugated sheet 32, the reverse disk surface of the second corrugated sheet 32, the positive disk surface of the third corrugated sheet 33 and the reverse disk surface of the third corrugated sheet 33 can all be provided with irregular protrusions 311, depending on the actual situation, but not limited thereto; and the size, shape and arrangement of the irregular protrusions 311 on the positive disk surface of the first corrugated sheet 31, the reverse disk surface of the first corrugated sheet 31, the positive disk surface of the second corrugated sheet 32, the reverse disk surface of the second corrugated sheet 32, the positive disk surface of the third corrugated sheet 33 and the reverse disk surface of the third corrugated sheet 33 can all be determined according to the actual situation;

[0099] The inner side of the lampshade 2 is provided with stripes 21 of different shapes, and the lampshade 2 plays an imaging role. The light emitted by the light source 6 passes through the optical component 5, the corrugated sheet component 3 and the lampshade 2 to produce irregular animations of stripes 21 on the target object such as the ceiling, wall, floor or curtain, like the landscape of the northern lights. The selection of the target object depends on the actual situation and is not limited to this. The light source 6 adopts an LED lamp, and the appropriate type of lamp can also be selected according to the actual situation.

[0100] In the projection lamp with a laterally-rotatable shading mechanism of the present invention, the optical component 5 includes a condenser lens, which plays a role in condensing the light emitted by the light source 6 .

[0101] In the projection lamp with the laterally-swinging shading mechanism of the present invention, an aluminum substrate 10 for heat dissipation is disposed beside the light source 6 .

[0102] In the projection lamp with a laterally-swinging shading mechanism of the present invention, the third corrugated sheet 33 is arranged close to the optical component 5, the bottom of the third corrugated sheet 33 is provided with heat dissipation blades 11, the circumferential side of the lamp holder 1 is provided with an air inlet channel 12, and the bottom of the lamp holder 1 is provided with a plurality of air outlets 13; since the third corrugated sheet 33 is driven by the third transmission gear 45 and the third connecting gear 49 to rotate all the time, the heat dissipation blades 11 also rotate accordingly, thereby forming a rotating wind, and the heat inside the lamp holder 1 is taken out from the air outlet 13, the rotation energy of the third corrugated sheet 33 is utilized, and there is no need to set up an additional driving device, the structural design is reasonable, energy-saving and emission-reducing, and green and environmentally friendly.

[0103] Working principle of the present invention:

[0104] The dual-axis motor 9 drives the first transmission mechanism 4 and the second transmission mechanism 8 to move simultaneously;

[0105] The device is provided with a first transmission mechanism 4 to drive the corrugated sheet assembly 3 to perform forward and reverse intermittent rotational motion, so that the refraction and reflection paths of the light source are changed. The device is provided with a second transmission mechanism 8 to drive the transversely rotating shading mechanism 7 to perform transverse opening and closing motion to change the projection range. The light emitted by the light source passes through the optical component 5, the corrugated sheet assembly 3, the transversely rotating shading mechanism 7 and the lampshade 2 to produce a variety of states of northern lights landscape projection.

[0106] This completes the working process of the projection lamp with the transversely rotating shading mechanism of the preferred embodiment.

[0107] In summary, although the present invention has been disclosed as above in terms of preferred embodiments, the above preferred embodiments are not intended to limit the present invention. A person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined in the claims.

Claims

1. A shading mechanism that can be turned sideways, characterized in that: The transversely rotating shading mechanism is connected to a lamp holder, one end of which is connected to a lamp shade, a light source, a second transmission mechanism, and a dual-axis motor are arranged in the lamp holder, and the transversely rotating shading mechanism is located between the light source and the lamp shade to change the projection range of the light source; The transversely rotating shading mechanism comprises a fixed frame, on which a shading gear ring and a plurality of shading gears are arranged, the fixed frame and the shading gear ring are movably connected together, a plurality of the shading gears are circumferentially arranged on the inner side surface of the shading gear ring, and a plurality of the shading gears are meshed with the shading gear ring, and each of the shading gears is correspondingly connected to a shading blade; One of the shading gears is connected to the second transmission mechanism, the second transmission mechanism is connected to the dual-axis motor, and the transversely rotating shading mechanism performs transverse opening and closing motion under the drive of the second transmission mechanism; The second transmission mechanism comprises a second reversing gear plate, a second central gear is arranged at the center of the second reversing gear plate, a second reversing gear ring is arranged on the inner side of the second reversing gear plate, the second central gear is an incomplete gear, the second reversing gear ring is an incomplete gear ring, the gear teeth of the second central gear and the gear teeth on the second reversing gear ring are located on different sides, a second reversing gear is arranged between the second central gear and the second reversing gear ring, and the second reversing gear is a complete gear; When the second reversing gear is meshed with the second sun gear, the second reversing gear is disengaged from the second reversing gear ring; when the second reversing gear is meshed with the first reversing gear ring, the second reversing gear is disengaged from the second sun gear, thereby realizing the forward and reverse rotation of the second reversing gear; One of the light-shielding gears is fixedly connected to the second reversing gear via a second transmission shaft, and the second reversing gear drives one of the light-shielding gears to rotate via the second transmission shaft, and the light-shielding gear drives the light-shielding gear ring to rotate and drives the remaining light-shielding gears to rotate together, thereby driving all the light-shielding blades to rotate horizontally in both directions, thereby realizing the horizontal opening and closing movement of the horizontally rotating light-shielding mechanism.

2. The lateral rotation shading mechanism according to claim 1, characterized in that: The outer edge of the second central gear and the inner side surface of the second reversing gear ring are both composed of a gear tooth portion and a smooth portion.

3. The lateral rotation shading mechanism according to claim 1, characterized in that: The bottom of the lampshade is provided with a plurality of avoidance holes for the shading blades to extend out.

4. The lateral rotation shading mechanism according to claim 1, characterized in that: A bearing is arranged between the fixing frame and the light-shielding gear ring; the second transmission shaft is connected to the fixing frame through the bearing, and a mounting hole for the second transmission shaft to pass through is arranged on the fixing frame.

5. A projection lamp, characterized in that: The transversely-swinging shading mechanism described in any one of claims 1 to 4 further comprises a corrugated sheet assembly and a first transmission mechanism, wherein the corrugated sheet assembly comprises a first corrugated sheet, a second corrugated sheet and a third corrugated sheet connected in series, wherein the first corrugated sheet, the second corrugated sheet and the third corrugated sheet perform forward and reverse intermittent rotational motion driven by the first transmission mechanism, wherein the light source is located between the corrugated sheet assembly and the lamp holder, and irregular protrusions are arranged on the forward disk surface and the reverse disk surface of the first corrugated sheet, the forward disk surface and the reverse disk surface of the second corrugated sheet, and the forward disk surface and the reverse disk surface of the third corrugated sheet, and the light emitted by the light source passes through the corrugated sheet assembly, the transversely-swinging shading mechanism and the lampshade to generate a landscape projection; A first supporting sleeve is fixedly provided at the bottom of the first corrugated sheet, a second supporting sleeve is fixedly provided at the bottom of the second corrugated sheet, a supporting rod is fixedly provided at the bottom of the third corrugated sheet, the second supporting sleeve is sleeved outside the supporting rod, and the first supporting sleeve is sleeved outside the second supporting sleeve; the lower part of the supporting rod is connected to the lamp holder through a bearing; The first transmission mechanism comprises a first reversing gear plate, a first central gear is arranged at the center of the first reversing gear plate, a first reversing gear ring is arranged on the inner side surface of the first reversing gear plate, the first central gear is an incomplete gear, the first reversing gear ring is an incomplete gear ring, the outer edge of the first central gear and the inner side surface of the first reversing gear ring are both composed of a gear tooth portion and a smooth portion, the gear tooth portion of the first central gear and the gear tooth portion on the first reversing gear ring are located on different sides, a first reversing gear is arranged between the first central gear and the first reversing gear ring, and the first reversing gear is a complete gear; When the first reversing gear is meshed with the first sun gear, the first reversing gear is disengaged from the first reversing gear ring; when the first reversing gear is meshed with the first reversing gear ring, the first reversing gear is disengaged from the first sun gear, thereby realizing the forward and reverse rotation of the first reversing gear; The first transmission mechanism further comprises a first transmission gear, a second transmission gear and a third transmission gear, the first reversing gear, the first transmission gear, the second transmission gear and the third transmission gear are coaxially arranged, and the first reversing gear, the first transmission gear, the second transmission gear and the third transmission gear are all fixedly connected with the first transmission shaft, and the first transmission shaft, the first reversing gear, the first transmission gear, the second transmission gear and the third transmission gear are connected as a whole by a key; The first transmission gear is meshed with the first connecting gear, the first connecting gear is fixedly connected with the first supporting sleeve, and the first transmission gear drives the first corrugated sheet to rotate through the first connecting gear and the first supporting sleeve; The second transmission gear is meshed with the second connecting gear, the second connecting gear is fixedly connected with the second supporting sleeve, and the second transmission gear drives the second corrugated sheet to rotate through the second connecting gear and the second supporting sleeve; The third transmission gear is meshed with the third connecting gear, the third connecting gear is fixedly connected with the support rod, and the third transmission gear drives the third corrugated sheet to rotate through the third connecting gear and the support rod.

6. The projection lamp according to claim 5, characterized in that: The upper part of the second support sleeve is provided with a first limiting step, the upper part of the first support sleeve abuts against the first limiting step for limiting position, the lower part of the second support sleeve is provided with a first limiting block, the lower part of the first support sleeve abuts against the first limiting block for limiting position, and the first limiting block is fixedly connected with the second support sleeve by means of a set screw; The upper part of the support rod is provided with a second limiting step, the upper part of the second support sleeve abuts against the second limiting step for limiting position, the lower part of the support rod is provided with a second limiting block, the lower part of the second support sleeve abuts against the second limiting block for limiting position, and the second limiting block is fixedly connected to the support rod by means of a set screw; Bearings are arranged between the first supporting sleeve and the second supporting sleeve, and between the second supporting sleeve and the supporting rod.

7. The projection lamp according to claim 5, characterized in that: The third transmission gear, the first connecting gear, the second connecting gear and the third connecting gear are all complete gears, the first transmission gear and the second transmission gear are both incomplete gears, the outer edge of the first transmission gear and the outer edge of the second transmission gear are both composed of a gear tooth portion and a smooth portion, and the smooth portion of the first transmission gear and the smooth portion of the second transmission gear are staggered.

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