CN109143759B - Base of projection device and projection equipment - Google Patents
Base of projection device and projection equipment Download PDFInfo
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- CN109143759B CN109143759B CN201811038410.XA CN201811038410A CN109143759B CN 109143759 B CN109143759 B CN 109143759B CN 201811038410 A CN201811038410 A CN 201811038410A CN 109143759 B CN109143759 B CN 109143759B
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
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Abstract
The invention provides a base of a projection device, which is characterized in that a first slide rail, a second slide rail and a third slide rail which are vertical to the first slide rail are arranged, the second slide rail and the third slide rail are connected on the first slide rail in parallel and movably, a first slide block unit and a second slide block unit are connected on the second slide rail and the third slide rail in a movable way, a second driving unit and a third driving unit are correspondingly fixed on the first slide block unit and the second slide block unit, the first slide block unit and the second slide block unit respectively move along the second slide rail and the third slide rail under the control of the second driving unit and the third driving unit, a top plate is rotatably connected to the second driving unit and the third driving unit, the first driving unit is used for driving the second slide rail to move along the first slide rail, and the adjustment of the translation or rotation freedom degree of the projection device in three directions can be realized, the projection device does not need to be moved manually, and the operation is simple, convenient and fast.
Description
Technical Field
The invention relates to the field of projection equipment design, in particular to a base of a projection device and projection equipment.
Background
Because the bearing surface used for placing the projection equipment outside is uneven or the projection devices are different in structure and assembly, the projection picture areas of different projection devices are different, and the existing projection equipment needs to be debugged in the actual projection process and before use, so that the projection picture can be projected into a designated area or fixed on a screen on a wall. The current common adjustment means is to adjust the position of the projection device in six degrees of freedom in space, so that the projection device can make its projection picture be located in a designated area by translation along a coordinate axis or rotation around the coordinate axis.
In the prior art, the projection device is debugged mainly by manually adjusting the base screw to adjust parameters such as a pitch angle, a left horizontal deflection angle, a right horizontal deflection angle and the like of the projection device, and the method has the following defects: on one hand, a user cannot monitor a projection picture in real time when adjusting the screw, the whole debugging process is complicated, tedious and long in time consumption, and the requirement on the operation level of the user is high; on the other hand, since the user inevitably needs to frequently move the projection device during the adjustment process, the user needs to expend a lot of effort due to the self weight (usually, the weight of the projection device and the base is over 10 kg), which seriously affects the user experience and even causes damage to the bearing surface or the projection device.
Disclosure of Invention
In order to solve the problems, the invention provides a base of a projection device and projection equipment, which effectively solve the problems that a user cannot give consideration to projection pictures when adjusting a base screw of the projection device and needs to invest a large amount of time and energy, are simple, convenient and quick to operate and improve user experience.
The first aspect of the present application provides a projection device's base, include base body and be located the roof of base body top, the roof is used for bearing projection device, base body includes the bottom plate, sets up the riser of bottom plate marginal portion, and the bottom plate with the rectangle cavity that the riser encloses into still includes:
the sliding rail structure comprises at least three sliding rails positioned in the rectangular cavity, wherein the at least three sliding rails comprise a first sliding rail, a second sliding rail and a third sliding rail, the first sliding rail is arranged along the direction of the first side edge of the bottom plate, the second sliding rail and the third sliding rail are parallel and are arranged perpendicular to the first sliding rail, the first sliding rail is fixed on the bottom plate, the second sliding rail and the third sliding rail are movably connected onto the first sliding rail, a first sliding block unit is movably connected onto the second sliding rail, and a second sliding block unit is movably connected onto the third sliding rail.
The at least three driving units comprise a first driving unit, a second driving unit and a third driving unit, the first driving unit is fixed on the bottom plate and used for controlling the second slide rail to slide along the length direction of the first slide rail, the second driving unit and the third driving unit are correspondingly fixed on the first slide block unit and the second slide block unit and used for controlling the first slide block unit to move on the second slide rail, and the third driving unit is used for controlling the second slide block unit to move on the third slide rail.
The top plate is rotatably connected to the second driving unit and the third driving unit.
Further, the base of the projection device further comprises: the fourth driving unit, the fifth driving unit and the sixth driving unit are distributed on the bottom plate in a triangular shape and are fixedly connected with the bottom plate.
Further, the base of the projection device further comprises: and the fourth driving unit, the fifth driving unit and the sixth driving unit are respectively used for controlling the heights of the three lifting devices.
Further, the first driving unit, the second driving unit, the third driving unit, the fourth driving unit, the fifth driving unit and the sixth driving unit are all motors.
Further, the lifting device comprises a top rod provided with an internal thread hole, and screws respectively fixedly connected with the rotating shafts of the fourth driving unit, the fifth driving unit and the sixth driving unit, and the screws are used for screwing in the top rod to adjust the distance between the bottom plate and the top rod respectively.
Furthermore, a first strip-shaped groove is formed in the second slide rail, a first rack is arranged on one side of the first strip-shaped groove, a first gear is fixed on a rotating shaft of the second driving unit, and the first gear is matched with the first rack, so that the rotating shaft of the second driving unit drives the first slider unit to slide along the second slide rail when moving in the first strip-shaped groove.
Furthermore, a second strip-shaped groove is formed in the third slide rail, a second rack is arranged on one side of the second strip-shaped groove, a second gear is fixed to a rotating shaft of the third driving unit, and the second gear is matched with the second rack, so that the rotating shaft of the third driving unit is driven to slide along the third slide rail when the second sliding block unit moves in the second strip-shaped groove.
Furthermore, the first slider unit and the second slider unit respectively comprise a sliding seat, a bend and a limit strip, wherein the bend extends upwards from two sides of the sliding seat, the limit strip is fixedly connected with the bend, the sliding seat, the bend and the limit strip form a sliding rail groove, and the sliding rail groove is used for being matched with the second sliding rail and the third sliding rail respectively.
Furthermore, a spring piece is arranged in the slide rail groove and is respectively used for adjusting the tightness degree between the slide rail groove and the second slide rail or the third slide rail.
Furthermore, a first through hole and a second through hole are formed in the top plate, and the first through hole and the second through hole are respectively used for accommodating rotating shafts of the second driving unit and the third driving unit.
Furthermore, the first driving unit is connected with the second slide rail through a cam and a link mechanism, one end of the cam is fixedly connected with a rotating shaft of the first driving unit, the other end of the cam is rotatably connected with one end of a connecting rod, and the other end of the connecting rod is rotatably connected with the second slide rail.
The remote control unit is used for receiving remote control signals, and the remote control signals are used for controlling the first driving unit, the second driving unit, the third driving unit, the fourth driving unit, the fifth driving unit and the sixth driving unit to operate.
In view of the above technical solutions, the base of the projection apparatus and the projection apparatus provided by the first aspect of the present invention, by arranging the first slide rail, the second slide rail and the third slide rail which are vertical to the first slide rail, the second slide rail and the third slide rail are parallel and movably connected with the first slide rail, a first slide block unit and a second slide block unit are movably connected to the second slide rail and the third slide rail, a second driving unit and a third driving unit are correspondingly fixed on the first slide block unit and the second slide block unit, the first slide block unit and the second slide block unit respectively move along the second slide rail and the third slide rail under the control of the second driving unit and the third driving unit, a top plate is rotatably connected to the second driving unit and the third driving unit, the projection device can be controlled to translate along the length directions of the second sliding rail and the third sliding rail and rotate in the direction perpendicular to the plane where the second sliding rail and the third sliding rail are located; the first driving unit is used for driving the second sliding rail to move along the first sliding rail, the projection device can be controlled to move horizontally along the length direction of the first sliding rail, projection pictures can be projected in the adjustment process, manual movement of the projection device is not needed, the whole adjustment process is completed by the driving device, and the operation is simple, convenient and fast.
The second aspect of the present application further provides another kind of base for a projection apparatus, including base body and a top plate located above the base body, the top plate is used for bearing the projection apparatus, the base body includes a bottom plate, a vertical plate disposed at an edge of the bottom plate, and a rectangular cavity enclosed by the bottom plate and the vertical plate, further includes: the sliding rail structure comprises at least three sliding rails positioned in the rectangular cavity, wherein the at least three sliding rails comprise a first sliding rail, a second sliding rail and a third sliding rail, the first sliding rail is arranged along the direction of the first side edge of the bottom plate, the second sliding rail and the third sliding rail are parallel and are all perpendicular to the first sliding rail, the first sliding rail is fixed on the bottom plate, and the second sliding rail and the third sliding rail are movably connected onto the first sliding rail.
At least three drive unit, at least three drive unit is including fixed connection first drive unit, second drive unit and third drive unit on the bottom plate, first drive unit, second drive unit control first gyro wheel and second gyro wheel rotation respectively, first gyro wheel with the second gyro wheel stretches out the distance of bottom plate equals, third drive unit is used for controlling the second slide rail is followed the length direction of first slide rail removes.
The second slide rail is connected with the third slide rail through the top plate.
Furthermore, the base of the projection device further includes a fourth driving unit, a fifth driving unit and a sixth driving unit, the fourth driving unit is fixedly connected to the second slide rail, and the fifth driving unit and the sixth driving unit are fixedly connected to the third slide rail.
Furthermore, the base of the projection device further comprises at least three lifting devices fixedly connected below the top plate, and the fourth driving unit, the fifth driving unit and the sixth driving unit are respectively used for controlling the heights of the three lifting devices.
Further, the first driving unit, the second driving unit, the third driving unit, the fourth driving unit, the fifth driving unit and the sixth driving unit are all motors.
Further, elevating gear is including the ejector pin that is equipped with the internal thread hole, the ejector pin with roof fixed connection, and respectively with fourth drive unit, fifth drive unit, sixth drive unit's pivot fixed connection's screw rod, the screw rod is used for the screw in the internal thread hole of ejector pin is in order to adjust the roof respectively with fourth drive unit, fifth drive unit the distance between the sixth drive unit.
Further, the bottom of the second slide rail is fixedly connected with a lead screw nut, the lead screw nut is matched with a lead screw, one end of the lead screw is fixedly connected with a rotating shaft of the third driving unit, the other end of the lead screw is fixedly connected with a bearing, the bearing is installed on a bearing seat, the bearing seat is fixedly connected with the bottom plate, and the rotating shaft of the third driving unit controls the lead screw to rotate so that the second slide rail moves along the first slide rail.
Further, the base of the projection apparatus further includes a remote control unit, the remote control unit is configured to receive a remote control signal, and the remote control signal is configured to control operations of the first driving unit, the second driving unit, the third driving unit, the fourth driving unit, the fifth driving unit, and the sixth driving unit.
In the base of the projection device provided by the second aspect of the present application, the projection device is placed on the top plate, and by arranging the first slide rail, and the second slide rail and the third slide rail which are perpendicular to the first slide rail, the second slide rail and the third slide rail are parallel to each other and are movably connected to the first slide rail, the third driving unit can control the second slide rail to move along the length direction of the first slide rail, and the second slide rail and the third slide rail are connected through the top plate, so that the effect of controlling the projection device to move along the length direction of the first slide rail is achieved; furthermore, the first driving unit and the second driving unit respectively control the rotation of the roller extending out of the bottom plate, the projection device can be controlled to move along the length direction of the second sliding rail and the third sliding rail and to rotate along the direction perpendicular to the plane where the second sliding rail and the third sliding rail are located, a projection picture is taken into consideration in the adjustment process, the projection device does not need to be moved manually, the whole adjustment process is completed by the driving device, and the operation is simple, convenient and fast.
The third aspect of the present application further provides a projection apparatus, which includes a projection device, and further includes a base of the projection device provided in the first aspect or the second aspect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive exercise.
Fig. 1 is a schematic structural diagram of a base of a projection apparatus according to an embodiment of the present disclosure;
fig. 2 is a schematic internal structural diagram of a base of a projection apparatus according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a lifting device of a base of a projection apparatus according to an embodiment of the present disclosure;
fig. 4 is an assembly diagram of a sliding block unit and a sliding rail of a base of a projection apparatus according to an embodiment of the present disclosure;
fig. 5 is an exploded view of a slider unit of a base of a projection apparatus according to an embodiment of the present disclosure;
fig. 6 is a schematic view of a cam link structure of a base of a projection apparatus according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of a top plate and a driving unit of a base of a projection apparatus according to an embodiment of the present disclosure;
fig. 8 is an overall schematic view of a base of another projection apparatus provided in the second embodiment of the present application;
fig. 9 is a schematic view of an internal structure of a base of another projection apparatus according to a second embodiment of the present application;
fig. 10 is a schematic structural diagram of a top plate and a driving unit of a base of another projection apparatus according to a second embodiment of the present disclosure;
fig. 11 is a schematic structural diagram of a lead screw and a lead screw nut of a base of another projection apparatus according to a second embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. It is noted that examples of the described embodiments are illustrated in the accompanying drawings, where like reference numerals refer to the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
In the description of the present invention, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or components must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner and are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; the two components can be mechanically connected or electrically connected, directly connected or indirectly connected through an intermediate medium, communicated inside the two components or in an interaction relationship of the two components. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example one
Because the debugging of projection arrangement among the prior art mainly adopts the mode of manual regulation base screw to adjust parameters such as the angle of pitch and left and right horizontal skew angle of projection arrangement, adopt this kind of mode to have following shortcoming: the user can't compromise the projection picture when adjusting projection arrangement's base screw to and need invest the problem of a large amount of time and energy, seriously influence user experience, still can cause the damage to loading surface or projection arrangement even.
In view of the above problems, an embodiment of the present invention provides a base of a projection apparatus, please refer to fig. 1, the base includes a base body 11 and a top plate 12 located above the base body, the top plate 12 is used for carrying the projection apparatus, the base body 11 includes a bottom plate 111, a vertical plate 112 disposed at an edge of the bottom plate, and a rectangular cavity surrounded by the bottom plate 111 and the vertical plate 112, the number of the vertical plates 112 can be set according to the shape of the bottom plate 111, for example, the bottom plate 111 is rectangular, and the number of the vertical plates 112 can be 4, and the vertical plates are respectively fixed at the edge of the periphery of the bottom plate 111.
Further, at least three slide rails 13 are located in the rectangular cavity, where the at least three slide rails 13 include a first slide rail 131, a second slide rail 132, and a third slide rail 133, where the first slide rail 131 is disposed along a direction of a first side edge a of the bottom plate 111, for example, the bottom plate 111 is rectangular, the first side edge a may be any one side edge of the rectangle, specifically, referring to a in fig. 1, the second slide rail 132 and the third slide rail 133 are disposed in parallel and perpendicular to the first slide rail 131, the first slide rail 131 is fixed on the bottom plate 111, the second slide rail 132 and the third slide rail 133 are movably connected to the first slide rail 131, the second slide rail 132 is movably connected to a first slider unit 141, and the third slide rail 133 is movably connected to a second slider unit 142.
For example, if the cross section of the first slide rail 131 is polygonal (e.g. rectangular), when the second slide rail 132 and the third slide rail 133 are connected to the first slide rail 131, the second slide rail 132 and the third slide rail 133 do not rotate around the first slide rail 131, so that the second slide rail 132 and the third slide rail 133 can only move along the length direction of the first slide rail 131; in the embodiment of the present application, the first slide rail 131 with a circular cross section is adopted, in order to ensure that the second slide rail 132 and the third slide rail 133 only move on the first slide rail 131 along the length direction of the first slide rail 131, and prevent the second slide rail 132 and the third slide rail 133 from rotating around the first slide rail 131 when being connected to the first slide rail 131, the first side edge opposite to the first side edge a of the first slide rail 131 is provided with the fourth slide rail 134, the fourth slide rail 134 is fixed on the bottom plate 111 and is parallel to the first slide rail 131, the second slide rail 132 and the third slide rail 133 are movably connected with the fourth slide rail 134, and the reliability that the second slide rail 132 and the third slide rail 133 only move along the length direction of the first slide rail 131 is further enhanced. It should be noted that, even if the cross section of the first slide rail 131 is in other shapes, in order to enhance the reliability that the second slide rail 132 and the third slide rail 133 only move along the length direction of the first slide rail 131, the fourth slide rail 134 or more may be still provided, which is not limited in the present application.
Further, at least three driving units 15 are further disposed in the base, each driving unit 15 includes a first driving unit 151, a second driving unit 152, and a third driving unit 153, the first driving unit 151 is fixed on the bottom plate 111, the first driving unit 151 is configured to control the second slide rail 132 to slide along the length direction of the first slide rail 131, the second driving unit 152 and the third driving unit 153 are respectively fixed on the first slider unit 141 and the second slider unit 142, the second driving unit 152 is configured to control the first slider unit 141 to move on the second slide rail 132, and the third driving unit 153 is configured to control the second slider unit 142 to move on the third slide rail 133.
Further, the top plate 12 is rotatably connected to the second driving unit 152 and the third driving unit 153, that is, the top plate 12 can rotate relative to the second driving unit 152 and the third driving unit 153, in order to ensure the smoothness of the movement of the top plate 12 on the base body, a plurality of universal wheel stands 19 are further disposed on the bottom plate 111, and the universal wheel stands 19 are used for supporting the top plate 12.
Further, the base of the projection apparatus provided in the first embodiment of the present application further includes a fourth driving unit 154, a fifth driving unit 155, and a sixth driving unit 156, wherein the fourth driving unit 154, the fifth driving unit 155, and the sixth driving unit 156 are distributed on the bottom plate 111 in a triangular shape and are fixedly connected to the bottom plate 111. Illustratively, the fourth driving unit 154 is located on the same side b of the base plate 111 as the fifth driving unit 155, and the sixth driving unit 156 is located on the side opposite to the side b.
Further, the base of the projection apparatus provided in the first embodiment of the present application further includes three lifting devices 16 fixed below the bottom plate 111, wherein the fourth driving unit 154, the fifth driving unit 155, and the sixth driving unit 156 are respectively configured to control the heights of the three lifting devices 16, for example, the fourth driving unit 154 is configured to control the height of the first lifting device 161, the fifth driving unit 155 is configured to control the height of the second lifting device (not shown), and the sixth driving unit 156 is configured to control the height of the third lifting device (not shown).
Further, the first driving unit 151, the second driving unit 152, the third driving unit 153, the fourth driving unit 154, the fifth driving unit 155, and the sixth driving unit 156 are motors, which each include a rotating shaft.
Further, the first lifting device 161 includes a top rod 1611 having a threaded hole, and a screw 1612 fixedly connected to the rotating shaft of the fourth driving unit 154, the screw 1612 is configured to be screwed into the threaded hole of the top rod 1611 to adjust a distance between the bottom plate 111 and the top rod 1611, in order to prevent the first lifting device 161 from slipping on a supporting surface (e.g., a table top), a non-slip mat 1613 is disposed at a contact position of the top rod 1611 and the supporting surface, and the non-slip mat 1613 may be made of a rubber material. The second lifting device and the third lifting device have the same or similar structure and connection relationship as the first lifting device 161, which is not described in detail in this embodiment.
Further, a first slot 1321 is formed on the second slide rail 132, a first rack 1322 is disposed on one side of the first slot 1321, a first gear 1521 is fixed on a rotating shaft of the second driving unit 152, and the first gear 1521 is matched with the first rack 1322, so that the rotating shaft of the second driving unit 152 drives the first slider unit 141 to slide along the second slide rail 132 when moving in the first slot 1321.
Further, a second bar-shaped slot 1331 is formed in the third slide rail 133, a second rack 1332 is disposed on one side of the second bar-shaped slot 1331, a second gear 1531 is fixed on the rotating shaft of the third driving unit 153, and the second gear 1531 is matched with the second rack 1332, so that the rotating shaft of the third driving unit 153 drives the second slider 142 to slide along the third slide rail 133 when moving in the second bar-shaped slot 1331.
Further, the first slider unit 141 includes a sliding base 1411, a bend 1412 extending upward from two sides of the sliding base 1411, and a limit bar 1413 fixedly connected to the bend 1412, the sliding base 1411, the bend 1412 and the limit bar 1413 together form a sliding rail groove (not shown in the figure), the sliding rail groove is used for being matched with the second sliding rail 132, so that the first slider unit 141 is movably connected to the second sliding rail 132, and the structure and connection relationship of the second slider unit 142 are the same as or similar to those of the first slider unit 141, which is not described in detail in this embodiment of the present application.
Further, a spring plate 1414 is disposed in the slide rail groove, and the spring plate 1414 is used for adjusting tightness between the slide rail groove and the second slide rail 132.
Further, the top plate 12 is provided with a first through hole 121 and a second through hole (not shown), and the first through hole 121 and the second through hole are respectively used for accommodating the rotating shafts of the second driving unit 152 and the third driving unit 153.
Further, the first driving unit 151 and the second slide rail 132 are connected to the link 18 mechanism through the cam 17, one end of the cam 17 is fixedly connected to the rotating shaft of the first driving unit 151, the other end of the cam 17 is rotatably connected to one end of the link 18, and the other end of the link 18 is rotatably connected to the second slide rail 132.
Further, the first embodiment of the present application further includes a remote control unit (not shown in the figure) for receiving remote control signals, which are used to control the operations of the first driving unit 151, the second driving unit 152, the third driving unit 153, the fourth driving unit 154, the fifth driving unit 155 and the sixth driving unit 156, including the forward rotation, the reverse rotation and the stop of the rotating shaft.
In the following, the movement and adjustment of the base of the projection apparatus provided in the first embodiment of the present application are described with reference to fig. 1, and for more convenient description of the movement and adjustment of the base, a three-dimensional coordinate system as shown in fig. 1 is established in the first embodiment of the present application, which may be specifically referred to in the directions of the X axis, the Y axis, and the Z axis in fig. 1.
Specifically, since the fourth driving unit 154, the fifth driving unit 155 and the sixth driving unit 156 are respectively connected to the three lifting devices 16, specifically, when the rotating shaft of the fourth driving unit 154 rotates forward (assuming that we stipulate that the clockwise direction is positive and the counterclockwise direction is negative), since the rotating shaft is fixedly connected to the screw 1612 of the first lifting device 161, the rotating shaft of the fourth driving unit 154 can drive the screw 1612 to rotate when rotating, the external thread on the screw 1612 is matched with the internal thread of the ejector 1611, so that the depth of the screw 1612 screwed into the ejector 1611 is increased, thereby reducing the distance between the ejector 1611 and the fourth driving unit 154; further, when the rotating shafts of the fifth driving unit 155 and the sixth driving unit 156 are also rotated forward at the same time, the overall height between the base and the supporting surface (e.g., the table top) can be reduced, so as to control the degree of freedom of the projection apparatus in the Z-direction.
For example, when the rotation axes of the fourth driving unit 154, the fifth driving unit 155, and the sixth driving unit 156 are simultaneously reversed, the overall height between the base and the supporting surface (e.g., the table top) can be increased, so as to control the degree of freedom of the translation of the projection apparatus in the Z direction.
Illustratively, referring to the above-mentioned positional distribution relationship of the fourth driving unit 154, the fifth driving unit 155 and the sixth driving unit 156 on the base 111 in fig. 1, when the fourth driving unit 154 and the fifth driving unit 155 rotate forward at the same time and the sixth driving unit 156 rotates backward, or when the fourth driving unit 154 and the fifth driving unit 155 rotate backward at the same time and the sixth driving unit 156 rotates forward, the height between one side of the base and the supporting surface in the X direction is increased and the height of the other side is decreased, so as to control the adjustment of the rotational degree of freedom of the projection apparatus in the Y direction.
Illustratively, referring to the above-mentioned positional distribution relationship of the fourth driving unit 154, the fifth driving unit 155 and the sixth driving unit 156 on the base plate 111 in fig. 1, when the fourth driving unit 154 rotates forward and the fifth driving unit 155 rotates backward, or when the fourth driving unit 154 rotates backward and the fifth driving unit 155 rotates forward, the height between one side of the base and the supporting surface in the Y direction is increased and the height of the other side is decreased, so as to control the adjustment of the rotational degree of freedom of the projection apparatus in the X direction.
Illustratively, the first driving unit 151 may control the second slide rail 132 to move on the first slide rail 131 through a mechanism of the cam 17 and the link 18 between the second slide rail 132 and the third slide rail 133, and the second slide rail 132 and the third slide rail 133 are indirectly connected through the top plate 12, so that the second slide rail 132 drives the third slide rail 133 to translate on the first slide rail 131 when the first slide rail 131 translates, thereby controlling the adjustment of the degree of freedom of translation of the projection apparatus in the X direction.
For example, since the rotating shaft of the second driving unit 152 is fixedly connected to the first gear 1521, the rotating shaft of the second driving unit 152 can control the first gear 1521 to move along the first rack 1322 when rotating, and the second driving unit 152 is fixedly connected to the first slider unit 141, so that the rotating shaft of the second driving unit 152 can control the first slider unit 141 to move along the second slide rail 132 when rotating; similarly, the rotating shaft of the third driving unit 153 can control the second slider 142 to move along the third sliding rail 133 when rotating. Since the top plate 12 is indirectly connected to the first slider unit 141 and the second slider 142, when the second driving unit 152 and the third driving unit 153 control the first slider unit 141 and the second slider 142 to move in the same direction, respectively, the degree of freedom of translation of the projection apparatus in the Y direction can be controlled; when the second driving unit 152 and the third driving unit 153 control the first slider unit 141 and the second slider 142 to move in opposite directions, the degree of freedom of rotation of the projection apparatus in the Z direction can be controlled.
In summary, the technical solutions provided in the first embodiment of the present application have the following beneficial effects:
in the base of the projection apparatus provided by the first aspect of the present invention, the first slide rail, the second slide rail and the third slide rail perpendicular to the first slide rail are arranged, the second slide rail and the third slide rail are parallel and movably connected to the first slide rail, a first slide block unit and a second slide block unit are movably connected to the second slide rail and the third slide rail, a second driving unit and a third driving unit are correspondingly fixed on the first slide block unit and the second slide block unit, the first slide block unit and the second slide block unit respectively move along the second slide rail and the third slide rail under the control of the second driving unit and the third driving unit, a top plate is rotatably connected to the second driving unit and the third driving unit, the projection device can be controlled to translate along the length direction (namely Y direction) of the second slide rail and the third slide rail and rotate in the direction (namely Z direction) perpendicular to the plane where the second slide rail and the third slide rail are located; the first driving unit is used for driving the second sliding rail to move along the first sliding rail, the projection device can be controlled to move horizontally along the length direction (namely the X direction) of the first sliding rail, a projection picture is taken into consideration in the adjustment process, the projection device does not need to be moved manually, the whole adjustment process is completed by the driving device, and the operation is simple, convenient and fast.
Example two
Referring to fig. 5, the second embodiment of the present application further provides another base of a projection apparatus, where the base includes a base body 21 and a top plate 22 located above the base body 21, the top plate 22 is used for carrying the projection apparatus, the base body 21 includes a bottom plate 211, a vertical plate 212 disposed at an edge of the bottom plate 211, and a rectangular cavity (not shown in the figure) surrounded by the bottom plate 211 and the vertical plate 212, and further includes:
the at least three slide rails are located in the rectangular cavity, and each of the at least three slide rails includes a first slide rail 231, a second slide rail 232, and a third slide rail 233, the first slide rail 231 is disposed along the direction of the first side edge a of the bottom plate 211, the second slide rail 232 and the third slide rail 233 are parallel and are both disposed perpendicular to the first slide rail 231, the first slide rail 231 is fixed on the bottom plate 211, and the second slide rail 232 and the third slide rail 233 are movably connected to the first slide rail 231.
For example, if the cross section of the first slide rail 231 is polygonal (e.g. rectangular), when the second slide rail 232 and the third slide rail 233 are connected to the first slide rail 231, the second slide rail 232 and the third slide rail 233 will not rotate around the first slide rail 231, so that the second slide rail 232 and the third slide rail 233 can only move along the length direction of the first slide rail 131; in the second embodiment of the present application, the first slide rail 231 with a circular cross section is adopted, in order to ensure that the second slide rail 232 and the third slide rail 233 only move on the first slide rail 231 along the length direction of the first slide rail 231, and prevent the second slide rail 232 and the third slide rail 133 from rotating around the first slide rail 231 when being connected to the first slide rail 231, the second embodiment of the present application sets the fourth slide rail 234 on the side opposite to the first side a, the fourth slide rail 234 is fixed on the bottom plate 211 and is parallel to the first slide rail 231, the second slide rail 232 and the third slide rail 233 are connected to the fourth slide rail 234, and the reliability that the second slide rail 232 and the third slide rail 233 only move along the length direction of the first slide rail 231 is further enhanced. It should be noted that, even if the cross section of the first slide rail 231 is in other shapes, in order to enhance the reliability that the second slide rail 232 and the third slide rail 233 only move along the length direction of the first slide rail 231, the fourth slide rail 234 or more may be still provided, which is not limited in the present application.
Further, the base further includes at least three driving units, the at least three driving units 25 include a first driving unit 251, a second driving unit 252, and a third driving unit 253, which are fixedly connected to the bottom plate 211, the first driving unit 251 and the second driving unit 252 respectively control the first roller 241 and the second roller 242 to rotate, distances of the first roller 241 and the second roller 242 extending out of the bottom plate 211 are equal, and the third driving unit 253 is used for controlling the second slide rail 232 to move along the length direction of the first slide rail 231.
Further, the second slide rail 232 and the third slide rail 233 are connected by the top plate 22.
Further, the second embodiment of the present application further includes a fourth driving unit 254, a fifth driving unit 255, and a sixth driving unit 256, wherein the fourth driving unit 254 and the fifth driving unit 255 are fixedly connected to the second slide rail 232, and the sixth driving unit 256 is fixedly connected to the third slide rail 233.
Further, the second embodiment of the present application further includes at least three lifting devices fixedly connected below the top plate 22, and the fourth driving unit 254, the fifth driving unit 255 and the sixth driving unit 256 are respectively used for controlling the heights of the three lifting devices, specifically, the fourth driving unit 254 controls the height of the first lifting device 261, the fifth driving unit 255 controls the height of the second lifting device (not shown in the figure), and the sixth driving unit 256 is used for controlling the height of the third lifting device (not shown in the figure).
Further, the first driving unit 251, the second driving unit 252, the third driving unit 253, the fourth driving unit 254, the fifth driving unit 255, and the sixth driving unit 256 are motors, which each include a rotating shaft.
Further, the first lifting device 261 includes a top rod 2611 having an internal threaded hole, the top rod 2611 is fixedly connected with the top plate 22, for example, the top rod 2611 and the top plate 22 may be fixedly connected by gluing or fastening with screws, which is not limited in this embodiment of the present invention, and a screw 2612 fixedly connected with a rotating shaft of the fourth driving unit 254, the screw 2612 is used to screw into a threaded hole to adjust a distance between the top plate 22 and the fourth driving unit 254, and the structures and connection relationships of the second lifting device 262 and the third lifting device 263 are the same as or similar to those of the first lifting device 261, which is not described in this embodiment of the present invention again.
Further, a lead screw nut 2321 is fixedly connected to the bottom of the second slide rail 232, the lead screw nut 2321 is matched with the lead screw 2322, one end of the lead screw 2322 is fixedly connected to a rotating shaft of the third driving unit 253, the other end of the lead screw 2322 is fixedly connected to a bearing 2323, the bearing 2323 is mounted on a bearing seat 2324, the bearing seat 2324 is fixedly connected to the bottom plate 211, and the rotating shaft of the third driving unit 253 controls the lead screw 2322 to rotate so that the second slide rail 232 connected to the lead screw nut 2321 moves along the first slide rail 231.
Further, the base of the projection apparatus provided in the second embodiment of the present application further includes a remote control unit (not shown in the figure) for receiving a remote control signal, where the remote control signal is used to control operations of the first driving unit 251, the second driving unit 252, the third driving unit 253, the fourth driving unit 254, the fifth driving unit 255, and the sixth driving unit 256, specifically, including forward rotation and reverse rotation of the rotating shaft and stopping.
Further, in order to prevent the top plate 22 from sliding off the base body 21 during movement, a fall prevention sensor 27 is further provided on the bottom plate 211 for giving a warning when the top plate 22 detects the fall of the top plate 22 during movement.
Further, a universal wheel 28 is fixed below the bottom plate 211, and the universal wheel is used for supporting and guiding the base when the first driving unit 251 and the second driving unit 252 control the first roller 241 and the second roller 242 to rotate, respectively.
In the following, the movement and adjustment of the base of the projection apparatus provided in the second embodiment of the present application are described with reference to the drawings, and for a more convenient description of the movement and adjustment of the base, a three-dimensional coordinate system as shown in fig. 1 is established in the first embodiment of the present application, which may specifically refer to the directions of the X axis, the Y axis, and the Z axis in fig. 1.
For example, when the rotating shaft of the fourth driving unit 254 rotates forward (assuming that we stipulate that the clockwise direction is positive and the counterclockwise direction is negative), since the rotating shaft is fixedly connected to the screw 2612 of the first lifting device 261, the rotating shaft of the fourth driving unit 254 can drive the screw 2612 to rotate when rotating, the external thread on the screw 2612 is matched with the internal thread of the top rod 2611, so that the depth of the screw 2612 screwed into the top rod 2611 is increased, and the distance between the top rod 2611 and the fourth driving unit 254 is reduced; further, when the rotating shafts of the fifth driving unit 255 and the sixth driving unit 256 are also rotated forward at the same time, the distances between the top plate 22 and the fifth driving unit 255 and the sixth driving unit 256 can be controlled, respectively, so as to control the degree of freedom of translation of the projection apparatus in the Z direction; and vice versa, and detailed description is not repeated in the second embodiment.
For example, referring to the above-mentioned positional distribution relationship of the fourth driving unit 254, the fifth driving unit 255, and the sixth driving unit 256 in the base in the drawings, when the rotating shafts of the fourth driving unit 254 and the fifth driving unit 255 rotate forward and the rotating shaft of the sixth driving unit 256 rotates backward, or when the rotating shafts of the fourth driving unit 254 and the fifth driving unit 255 rotate backward and the rotating shaft of the sixth driving unit 256 rotates forward, the height of one side of the top plate 22 of the base in the X direction from the supporting surface (e.g., the table top) is increased and the height of the other side is decreased, so as to control the adjustment of the rotational degree of freedom of the projection apparatus in the Y direction.
For example, referring to the above-mentioned distribution relationship of the positions of the fourth driving unit 254, the fifth driving unit 255, and the sixth driving unit 256 in the base in the drawings, when the rotating shaft of the fifth driving unit 255 rotates forward and the rotating shaft of the sixth driving unit 256 rotates backward, or the rotating shaft of the fifth driving unit 255 rotates backward and the rotating shaft of the sixth driving unit 256 rotates forward, the height between one side of the top plate 22 of the base and the supporting surface in the Y direction is increased and the height of the other side is decreased, so as to control the adjustment of the rotational degree of freedom of the projection apparatus in the X direction.
Illustratively, the rotating shafts of the first driving unit 251 and the second driving unit 252 are respectively used for controlling the first roller 241 and the second roller 242 to rotate, and when the rotating shafts of the first driving unit 251 and the second driving unit 252 control the first roller 241 and the second roller to roll along the same direction, the base can be driven to move integrally, so as to control the degree of freedom of translation of the projection apparatus in the Y direction; when the rotating shafts of the first driving unit 251 and the second driving unit 252 control the first roller 241 and the second roller to roll in opposite directions, the rotational degree of freedom of the projection apparatus in the Z direction can be controlled.
For example, when the rotating shaft of the third driving unit 253 rotates, the lead screw 2322 is matched with the lead screw nut 2321, and can drive the second slide rail 232 fixedly connected with the lead screw nut 2321 to move along the length direction of the first slide rail 231, and the second slide rail 232 and the third slide rail 233 are connected together through the top plate 22, that is, when the second slide rail 232 moves along the length direction of the first slide rail 231, the third slide rail 233 can be driven to also move along the length direction of the first slide rail 231, so as to control the degree of freedom of translation of the projection apparatus in the X direction.
In summary, in the base of the projection apparatus provided in the second embodiment of the present application, the projection apparatus is placed on the top plate, and by arranging the first slide rail and the second slide rail and the third slide rail perpendicular to the first slide rail, the second slide rail and the third slide rail are parallel to each other and are both movably connected to the first slide rail, the third driving unit can control the second slide rail to move along the length direction of the first slide rail, and the second slide rail and the third slide rail are connected by the top plate, so that the effect of controlling the projection apparatus to move along the length direction of the first slide rail is achieved; furthermore, the first driving unit and the second driving unit respectively control the rotation of the roller extending out of the bottom plate, the projection device can be controlled to move along the length direction of the second sliding rail and the third sliding rail and to rotate along the direction perpendicular to the plane where the second sliding rail and the third sliding rail are located, a projection picture is taken into consideration in the adjustment process, the projection device does not need to be moved manually, the whole adjustment process is completed by the driving device, and the operation is simple, convenient and fast.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (20)
1. The base of the projection device comprises a base body and a top plate located above the base body, wherein the top plate is used for bearing the projection device, the base body comprises a bottom plate, a vertical plate arranged at the edge of the bottom plate, and a rectangular cavity enclosed by the bottom plate and the vertical plate, and is characterized by further comprising:
the at least three slide rails are positioned in the rectangular cavity and comprise a first slide rail, a second slide rail and a third slide rail, the first slide rail is arranged along the direction of the first side edge of the bottom plate, the second slide rail and the third slide rail are parallel and are arranged perpendicular to the first slide rail, the first slide rail is fixed on the bottom plate, the second slide rail and the third slide rail are movably connected to the first slide rail, the second slide rail is movably connected with a first slide block unit, and the third slide rail is movably connected with a second slide block unit;
the at least three driving units comprise a first driving unit, a second driving unit and a third driving unit, the first driving unit is fixed on the bottom plate, the first driving unit is used for controlling the second slide rail to slide along the length direction of the first slide rail, the second driving unit and the third driving unit are correspondingly fixed on the first slider unit and the second slider unit, the second driving unit is used for controlling the first slider unit to move on the second slide rail, and the third driving unit is used for controlling the second slider unit to move on the third slide rail;
the top plate is rotatably connected to the second driving unit and the third driving unit.
2. The base of a projection device of claim 1, further comprising: the fourth driving unit, the fifth driving unit and the sixth driving unit are distributed on the bottom plate in a triangular shape and are fixedly connected with the bottom plate.
3. The base of a projection device of claim 2, further comprising: and the fourth driving unit, the fifth driving unit and the sixth driving unit are respectively used for controlling the heights of the three lifting devices.
4. The base of claim 3, wherein the first driving unit, the second driving unit, the third driving unit, the fourth driving unit, the fifth driving unit, and the sixth driving unit are all motors.
5. The base of the projection apparatus according to claim 4, wherein the lifting device includes a top rod having an internal threaded hole, and screws respectively fixedly connected to the rotating shafts of the fourth driving unit, the fifth driving unit, and the sixth driving unit, and the screws are configured to be screwed into the top rod to adjust distances between the bottom plate and the top rod, respectively.
6. The base of the projection apparatus according to claim 1, wherein the second slide rail has a first slot, a first rack is disposed on one side of the first slot, and a first gear is fixed to a rotating shaft of the second driving unit and is engaged with the first rack, so that the rotating shaft of the second driving unit drives the first slider unit to slide along the second slide rail when moving in the first slot.
7. The base of the projection apparatus according to claim 6, wherein a second bar-shaped groove is formed on the third slide rail, a second rack is disposed on one side of the second bar-shaped groove, a second gear is fixed on a rotating shaft of the third driving unit, and the second gear is matched with the second rack, so that the rotating shaft of the third driving unit drives the second slider unit to slide along the third slide rail when moving in the second bar-shaped groove.
8. The base of the projection apparatus according to claim 7, wherein the first slider unit and the second slider unit respectively include a sliding base, a bend extending upward from two sides of the sliding base, and a limit bar fixedly connected to the bend, the sliding base, the bend, and the limit bar form a sliding rail groove, and the sliding rail groove is used for respectively matching with the second sliding rail and the third sliding rail.
9. The base of the projection apparatus according to claim 8, wherein a spring plate is disposed in the rail groove, and the spring plate is used to adjust tightness between the rail groove and the second rail or the third rail, respectively.
10. The base of claim 1, wherein the top plate has a first through hole and a second through hole, and the first through hole and the second through hole are respectively configured to accommodate the rotation shafts of the second driving unit and the third driving unit.
11. The base of the projection apparatus according to claim 1, wherein the first driving unit and the second slide rail are connected to a link mechanism through a cam, one end of the cam is fixedly connected to the rotating shaft of the first driving unit, the other end of the cam is rotatably connected to one end of the link, and the other end of the link is rotatably connected to the second slide rail.
12. The base of a projection device of claim 2, further comprising a remote control unit configured to receive remote control signals configured to control the operation of the first drive unit, the second drive unit, the third drive unit, the fourth drive unit, the fifth drive unit, and the sixth drive unit.
13. The base of the projection device comprises a base body and a top plate located above the base body, wherein the top plate is used for bearing the projection device, the base body comprises a bottom plate, a vertical plate arranged at the edge of the bottom plate, and a rectangular cavity enclosed by the bottom plate and the vertical plate, and is characterized by further comprising:
the at least three slide rails are positioned in the rectangular cavity and comprise a first slide rail, a second slide rail and a third slide rail, the first slide rail is arranged along the direction of the first side edge of the bottom plate, the second slide rail and the third slide rail are parallel and are arranged perpendicular to the first slide rail, the first slide rail is fixed on the bottom plate, and the second slide rail and the third slide rail are movably connected to the first slide rail;
the at least three driving units comprise a first driving unit, a second driving unit and a third driving unit which are fixedly connected to the bottom plate, the first driving unit and the second driving unit respectively control a first roller and a second roller to rotate, the distances from the first roller and the second roller to the bottom plate are equal, and the third driving unit is used for controlling the second slide rail to move along the length direction of the first slide rail;
the second slide rail is connected with the third slide rail through the top plate.
14. The base of claim 13, further comprising a fourth driving unit, a fifth driving unit and a sixth driving unit, wherein the fourth driving unit is fixedly connected to the second slide rail, and the fifth driving unit and the sixth driving unit are fixedly connected to the third slide rail.
15. The base of the projection apparatus according to claim 14, further comprising at least three lifting devices fixedly connected below the top plate, wherein the fourth driving unit, the fifth driving unit and the sixth driving unit are respectively used for controlling the heights of the three lifting devices.
16. The base of claim 14, wherein the first driving unit, the second driving unit, the third driving unit, the fourth driving unit, the fifth driving unit, and the sixth driving unit are all motors.
17. The base of the projection apparatus according to claim 15, wherein the lifting device includes a top rod having an internal threaded hole, the top rod is fixedly connected to the top plate, and screws respectively fixedly connected to the rotating shafts of the fourth driving unit, the fifth driving unit, and the sixth driving unit, the screws are used for screwing into the internal threaded hole of the top rod to adjust the distance between the top plate and each of the fourth driving unit, the fifth driving unit, and the sixth driving unit.
18. The base of the projection apparatus according to claim 13, wherein a lead screw nut is fixedly connected to a bottom of the second slide rail, the lead screw nut is matched with a lead screw, one end of the lead screw is fixedly connected to a rotating shaft of the third driving unit, the other end of the lead screw is fixedly connected to a bearing, the bearing is mounted on a bearing seat, the bearing seat is fixedly connected to the bottom plate, and the rotating shaft of the third driving unit controls the lead screw to rotate so that the second slide rail moves along the first slide rail.
19. The base of a projection device of claim 14, further comprising a remote control unit configured to receive remote control signals configured to control the operation of the first drive unit, the second drive unit, the third drive unit, the fourth drive unit, the fifth drive unit, and the sixth drive unit.
20. A projection device comprising a projection apparatus, further comprising a base for the projection apparatus of any of claims 1 or 13.
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| CN201811038410.XA CN109143759B (en) | 2018-09-06 | 2018-09-06 | Base of projection device and projection equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811038410.XA CN109143759B (en) | 2018-09-06 | 2018-09-06 | Base of projection device and projection equipment |
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| CN109143759B true CN109143759B (en) | 2021-03-12 |
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| CN110274129B (en) * | 2019-07-18 | 2021-06-25 | 四川长虹电器股份有限公司 | Electric adjusting base of projection display equipment |
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| CN204062400U (en) * | 2014-08-13 | 2014-12-31 | 张欢 | A kind of universal projector for real object expands underframe |
| KR101644398B1 (en) * | 2014-12-02 | 2016-08-01 | 주식회사 에이스텍 | Beam projector lift |
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| CN105372918A (en) * | 2015-12-15 | 2016-03-02 | 重庆触视科技有限公司 | Adjustment device for projector |
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| CN108825968A (en) * | 2016-12-23 | 2018-11-16 | 充烜金 | Projector angles adjustment equipment |
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| CN102445998A (en) * | 2011-09-16 | 2012-05-09 | 海信集团有限公司 | Method to obtain projection position of remote-control light spot and interactive projection system |
| CN103251239A (en) * | 2012-07-06 | 2013-08-21 | 靓靓屋有限公司 | Intelligent projecting furniture system |
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