Planetarium

Abstract

The planetarium comprises a platform, a time display disc, a hollow rod, an annular ball seat and a hollow ball body which are arranged from bottom to top, the platform is rotationally connected with the time display disc, the circle center of the top of the time display disc is fixed with the bottom end of the hollow rod, the annular ball seat is sleeved on the hollow rod, the hollow ball body is sleeved on the hollow rod, and a plurality of astronomical images are arranged on the hollow ball body; and a spherical LED lamp bead is arranged at the top end of the hollow rod. The astronomical image projector has the advantages of being small in size, convenient to move and capable of actively learning at any time; the astronomical image simulating the whole year of the northern hemisphere is projected to an indoor wall, different constellations and positions are identified at any time, the knowledge of astronomical sight movement of the astronomical image and the knowledge of the Yanghua system are known, star magnitude comparison is felt, and popularization and use are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of teaching and entertainment, in particular to a celestial appearance instrument. BACKGROUND

[0002] Astronomical knowledge is abstract and mysterious, and all large, medium and small cities have science and technology museums and planetariums with celestial appearance projectors, which can demonstrate various celestial phenomena, such as celestial body movement rules, star position, time and space changes, etc., to achieve the effects of education, teaching and popularization, and more and more people are attracted, especially children and teenagers are interested in astronomical knowledge such as stars.

[0003] However, the celestial appearance projection equipment of the planetarium often has the effect of passive popularization. Since the location of the planetarium is fixed, the number of visitors is limited, and visitors need to go to the planetarium to see it. Secondly, the projection rules of stars and time of the star appearance projection equipment in the planetarium are fixed. Not only is the learning time limited, but also it cannot be learned regularly, and it cannot control the projected star pattern arbitrarily according to its own learning method, the participation is low, and it cannot leave a deep impression on people who want to understand deeply. In summary, a small-sized, movable and remotely-controlled star appearance projector is needed to meet the demand of using at any time and to combine teaching with entertainment. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a celestial appearance instrument.

[0005] The utility model is implemented by the following technical schemes:

[0006] A celestial appearance instrument comprises a ground platform, a time display disc, a hollow rod, a ring-shaped ball seat and a hollow ball body arranged in sequence from bottom to top. The time display disc is in the shape of "T" in cross section. The ground platform top is longitudinally connected with the time display disc bottom. The time display disc top center is fixed with the hollow rod bottom end. The ring-shaped ball seat is sleeved on the hollow rod and is horizontally connected with the hollow rod. The hollow ball body is open on one side. The hollow ball body is sleeved on the outside of the hollow rod through the opening, and the opening of the hollow ball body is fixedly connected with the ring-shaped ball seat top.

[0007] A plurality of star appearance patterns are covered on the outer surface of the hollow ball body. Each star appearance pattern is composed of a plurality of fine through holes and fine through hole connecting lines.

[0008] A spherical LED lamp bead is fixed on the top end of the hollow rod.

[0009] Time scale lines are arranged on the side of the ring-shaped ball seat and the side of the time display disc top along the circumference, respectively.

[0010] A cover is also fixed on the top of the base, and an opening is arranged on one side of the cover for enabling the bottom of the time display disc to rotate longitudinally, and a latitude scale is arranged on the cover along the longitudinal rotation direction of the time display disc.

[0011] Preferably, the base is a hollow cylinder.

[0012] Preferably, two lower vertical plates are vertically fixed on the top of the base in parallel, two upper vertical plates are arranged between the two lower vertical plates in parallel, the upper vertical plates are fixed with the bottom of the time display disc, and the two lower vertical plates are coaxially connected with the adjacent upper vertical plates respectively.

[0013] Preferably, the annular ball seat is rotationally connected with the hollow rod through a bearing.

[0014] Preferably, the device further comprises a battery and a switch, the switch is arranged on the outer wall of the base, and the battery, the switch and the spherical LED lamp bead are connected in series.

[0015] Preferably, the device further comprises a micro motor and a micro motor forward-reverse rotation remote control switch, the micro motor and the micro motor forward-reverse rotation remote control switch are fixed on the hollow rod in the hollow sphere, the power supply interface of the micro motor forward-reverse rotation remote control switch is connected with the battery in parallel, the control interface of the micro motor forward-reverse rotation remote control switch is connected with the control port of the micro motor, and the output end of the micro motor is in gear transmission with the annular ball seat.

[0016] The star image projector has the advantages that: the star image projector has small volume, is convenient to move, can be used for active learning at any time, and avoids passive acceptance; the star image diagram covered by the month and date scale of the annular ball seat can be projected on the indoor wall by adjusting the month and date scale of the annular ball seat to correspond to the 24-hour time scale of the time display disc, the star image in four seasons can be projected on the indoor wall, the star image in the natural starry sky is simulated, the function of displaying different star images at different times is realized, the corresponding star image diagram can be displayed by adjusting the latitude position of the hollow sphere, the star image, the position of the constellation, the position and shape of the Milky Way, the star contrast, and the relative change between the starry sky and the time can be understood, the star image projector has the function of combining teaching with entertainment, and is convenient to popularize and use. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only show some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without any creative effort.

[0018] Figure 1 is a schematic view of the overall structure of the present application;

[0019] Figure 2 is Figure 1 a schematic view of a use state;

[0020] Figure 3 is Figure 2 a partial enlarged view of A in the middle;

[0021] Figure 4 is Figure 1 a sectional view of B;

[0022] Figure 5 is Figure 4 a partial enlarged view of B in the middle;

[0023] Figure 6 is a schematic view of the lower vertical plate, the upper vertical plate.

[0024] In the figure: base 1, time display disc 2, hollow rod 3, annular ball seat 4, hollow spherical body 5, lower vertical plate 6, upper vertical plate 7, fine through hole 8, star map 9, spherical LED lamp bead 10, time scale 11, cover body 12, latitude scale 13, battery 14, switch 15, micro motor 16, micro motor forward and reverse rotation remote control switch 17. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] EMBODIMENT

[0027] As Figures 1 to 6 shown, a celestial globe includes, from bottom to top, a base 1, a time display disc 2, a hollow rod 3, an annular ball seat 4, and a hollow spherical body 5. The base 1 is a hollow cylinder and has an observatory shape. The top of the base 1 is vertically connected to the bottom of the time display disc 2 in a longitudinal direction. Two lower vertical plates 6 are vertically fixed to the top of the base 1 and arranged in parallel. Two upper vertical plates 7 are arranged between the two lower vertical plates 6 and arranged in parallel. The upper vertical plates 7 are vertically fixed to the bottom of the time display disc 2. The two lower vertical plates 6 are coaxially connected to the adjacent upper vertical plates 7, respectively.

[0028] The cross section of the apparent time disc 2 is in the shape of "T", the top center of the apparent time disc 2 is fixed with the bottom end of the hollow rod 3, the annular ball seat 4 is sleeved on the hollow rod 3 and is horizontally connected with the hollow rod 3, the annular ball seat 4 is connected with the hollow rod 3 through a bearing, the annular ball seat 4 is fixed with the outer ring of the bearing, the hollow rod 3 is fixed with the inner ring of the bearing, the hollow sphere 5 is opened on one side, the hollow sphere 5 is sleeved on the outer side of the hollow rod 3 through the opening, and the opening of the hollow sphere 5 is fixedly connected with the top of the annular ball seat 4;

[0029] A plurality of star maps 9 are covered on the outer surface of the hollow sphere 5, each star map 9 is composed of a plurality of fine through holes 8 and lines connected with the fine through holes 8, the hollow sphere 5 is opaque, the surface of the embodiment is coated with dark paint to achieve light shielding, and is also coated with a simulated galaxy pattern to simulate the galaxy;

[0030] The spherical LED lamp bead 10 is fixed on the top end of the hollow rod 3, the light of the spherical LED lamp bead 10 is projected onto any projection object, such as a white wall, through the fine through holes 8 to form a star projection;

[0031] The time scale line 11 is arranged on the side of the annular ball seat 4 and the top side of the apparent time disc 2 along the circumference, the time scale line 11 on the annular ball seat 4 can be a month date scale line, marked with 12 months, and each month is located in a time period upward to part of the star maps 9 on the hollow sphere 5; the time scale line 11 on the apparent time disc 2 can be a 24-hour time scale line, marked with 24 hours, and can be further divided into minute and second scale lines, and each time period is also located in a time period upward to part of the star maps 9 on the hollow sphere 5;

[0032] The cover body 12 is further fixed on the top of the stage 1, one side of the cover body 12 is provided with an opening for vertically rotating the bottom of the apparent time disc 2, the cover body 12 is provided with the latitude scale line 13 along the vertical rotation direction of the apparent time disc 2, the apparent time disc 2 is vertically rotated on the stage 1, the hollow sphere 5 is simulated as a celestial sphere, the rotation direction is simulated as the north-south direction of the earth, the apparent time disc 2 drives the hollow sphere 5 to rotate, a pointing mark can be arranged on the apparent time disc 2 to point to a certain latitude value of the latitude scale line 13, at this time, the upper half of the hollow sphere 5 indicates the corresponding latitude position of the earth, and the star map 9 projected upward corresponds to the star map 9 that can be seen in the night sky of the earth at the same latitude, the latitude of the embodiment is north latitude, and the simulated star map of the latitude range of the northern hemisphere on the earth is displayed.

[0033] The embodiment further includes the battery 14 and the switch 15, the switch 15 is arranged on the outer wall of the stage 1, the battery 14, the switch 15 and the spherical LED lamp bead 10 are connected in series, the switch 15 is used for controlling the on-off of the spherical LED lamp bead 10, and the battery 14 provides power supply for the spherical LED lamp bead 10.

[0034] It also includes micro motor 16, micro motor forward and reverse remote control switch 17, micro motor 16 selects the general product on the market, and the embodiment selects N20 micro speed reducer motor, micro motor forward and reverse remote control switch 17 selects the general product on the market, including remote control, control circuit board, control circuit board on the antenna for signal transmission and reception, power interface end, motor interface end, micro motor 16 and micro motor forward and reverse remote control switch 17 are fixed on the hollow rod 3 in the hollow sphere 5, the power interface of micro motor forward and reverse remote control switch 17 is connected with battery 14 in parallel, the battery 14 provides power supply for micro motor 16, the control interface of micro motor forward and reverse remote control switch 17 is connected with the control port of micro motor 16, the output end of micro motor 16 is gear driven with annular ball seat 4, the output end of micro motor 16 is controlled to rotate forward or reversely through the remote control, the output end of micro motor 16 has a gear, which is engaged with the tooth ring coaxially sleeved outside the bearing and fixed with annular ball seat 4, the annular ball seat 4 is driven to rotate by gear drive, and the hollow sphere 5 is indirectly driven to rotate forward or reversely, so that the requirement of different star atlas 9 corresponding to a time scale line 11 at a moment is realized.

[0035] Working principle: when the utility model is used, the spherical LED lamp bead 10 is turned on to illuminate through the switch 15, the light is transmitted through the fine through hole 8 and projected on any projection object, preferably a white object, such as a wall, to form a star projection;

[0036] The hollow sphere 5 is longitudinally rotated on the top of the stage 1 through the time display disc 2, when rotating downward, the latitude value of the upper half of the hollow sphere 5 can be adjusted, according to the requirement, the pointing mark on the time display disc 2 is pointed to the required latitude value or range of the latitude scale line 13, at this time, the star atlas 9 projected upward by the hollow sphere 5 corresponds to the above-mentioned latitude value or range, indicating that the star atlas 9 projected at this time can be observed by people at the above-mentioned latitude value or range;

[0037] The output end of micro motor 16 is controlled to rotate forward or reversely through the remote control, the annular ball seat 4 is driven to rotate by micro motor 16, and the hollow sphere 5 is indirectly driven to rotate forward or reversely, the time scale line 11 on the annular ball seat 4 corresponds to the time scale line 11 on the time display disc 2, the time scale line 11 on the annular ball seat 4 can be a month date scale line, marked with 12 months, the time scale line 11 on the time display disc 2 can be a 24-hour time scale line, marked with 24 hours, and the corresponding part of the star atlas 9 that people can see at a certain latitude, a certain month, a certain day, or even a certain moment of the earth is displayed.

[0038] The star appearance projector is small in size, portable, low in cost, and can be used at any time for learning; the star appearance diagram 9 covered by the month date scale line of the annular ball seat 4 is projected on the indoor wall by adjusting the corresponding month date scale line of the annular ball seat 4 and the 24-hour time scale line of the time display disc 2, the star appearance in four seasons is projected on the indoor wall, the star appearance in different time is displayed, the latitude position is adjusted by the hollow ball 5, the corresponding star appearance diagram 9 is displayed, the knowledge of star appearance, star position, galaxy position and shape, star contrast, and relative change of star appearance and time is understood, the learning and entertainment are realized, and the star appearance projector is popularized and used.

[0039] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An astronomical instrument, characterized in that, The time display device comprises, from bottom to top, a platform, a time display disc, a hollow rod, a ring-shaped ball seat, and a hollow ball, wherein the time display disc is in the shape of "T" in cross section, the top of the platform is longitudinally connected with the bottom of the time display disc, the center of the top of the time display disc is fixed with the bottom end of the hollow rod, the ring-shaped ball seat is sleeved on the hollow rod and is horizontally connected with the hollow rod, the hollow ball is opened on one side, the hollow ball is sleeved on the outside of the hollow rod through the opening, and the opening of the hollow ball is fixedly connected with the top of the ring-shaped ball seat. A plurality of star maps are covered on the outer surface of the hollow ball, each of the star maps is composed of a plurality of fine through holes and connecting lines of the fine through holes. A spherical LED lamp bead is fixed on the top end of the hollow rod. Time scale lines are respectively arranged on the side of the ring-shaped ball seat and the side of the top of the time display disc along the circumference. A cover is further fixed on the top of the platform, one side of the cover is provided with an opening for longitudinally rotating the bottom of the time display disc, and a latitude scale line is arranged on the cover along the longitudinal rotating direction of the time display disc.

2. A planetarium according to claim 1, characterized in that: The platform is a hollow cylinder.

3. A planetarium according to claim 2, characterized in that: Two parallel lower vertical plates are vertically fixed on the top of the platform, two parallel upper vertical plates are arranged between the two lower vertical plates, the upper vertical plates are fixed with the bottom of the time display disc, and the two lower vertical plates are coaxially connected with the adjacent upper vertical plates.

4. A planetarium according to claim 3, characterized in that: The ring-shaped ball seat is connected with the hollow rod through a bearing.

5. A planetarium according to claim 4, characterized in that: The device further comprises a battery and a switch, the switch is arranged on the outer wall of the platform, and the battery, the switch, and the spherical LED lamp bead are connected in series.

6. A planetarium according to claim 5, characterized in that: The device further comprises a micro motor and a micro motor forward and reverse rotation remote control switch, the micro motor and the micro motor forward and reverse rotation remote control switch are fixed on the hollow rod in the hollow ball, the power supply interface of the micro motor forward and reverse rotation remote control switch is connected with the battery in parallel, the control interface of the micro motor forward and reverse rotation remote control switch is connected with the control port of the micro motor, and the output end of the micro motor is in gear transmission with the ring-shaped ball seat.

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