Rotating wheel type display device

Abstract

The utility model discloses a rotating wheel type display device, which comprises a mounting shaft and a display mechanism arranged on the mounting shaft, the display mechanism comprises a fixed seat, a main plate, two motors and two rollers, the fixed seat is fixedly arranged on the side wall of the mounting shaft, the main plate and the motors are arranged on the fixed seat, the two motors are adjacently arranged on the fixed seat, and the two rollers are arranged on the main plate. Output shafts of the motors are parallel to the mounting shaft, the directions of the output shafts of the two motors are opposite, the rollers and the motors are arranged in a one-to-one correspondence mode, the fixing base, the main plate and the motors are enclosed in the rollers, the outer ends of the rollers are rotatably connected to the corresponding positions of the mounting shaft in a sleeving mode, and the motors and the rollers are directly arranged on the side wall of the mounting shaft in a corresponding mode; the motor is prevented from being stacked at the end part of the mounting shaft, and the occupation of the motor on the end part mounting space of the rotating wheel type display device is reduced, so that the length size of the rotating wheel type display device is shortened, and the display density of the rotating wheel type display device is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of display devices, in particular to a rotating wheel display device. Background Art

[0002] Existing rotary display devices include rotary clocks, rotary page-turning calendars, and the like.

[0003] Take the rotary clock as an example. The way a rotary clock displays time is similar to that of an electronic watch face. The difference is that the rotary clock updates the time information in the display area by rotating the drum. It has a more mechanical aesthetic than an electronic watch face, and therefore has been quite popular among consumers in recent years.

[0004] Existing rotary clocks generally include a mounting shaft, several motors and rollers. The rollers are rotatably sleeved on the mounting shaft and distributed along the axial direction of the mounting shaft. In order to reduce the burden on the mounting shaft, the motor is often arranged at the end of the mounting shaft, and the rollers located in the middle of the mounting shaft or even farther are driven to rotate through a transmission rod.

[0005] However, the motor stacked at the end of the mounting shaft will occupy part of the space of the device alone, resulting in a larger length dimension of the device as a whole, which is not conducive to reducing the volume of the rotary clock. Utility Model Content

[0006] In view of this, the utility model provides a rotary display device for solving the problem that the motor of the rotary display device in the prior art occupies the end space of the device alone, resulting in a large overall length of the device, which is not conducive to reducing the volume of the rotary clock.

[0007] In order to achieve one or part or all of the above-mentioned purposes or other purposes, the utility model proposes a rotary display device, including a mounting shaft and a display mechanism arranged on the mounting shaft, the display mechanism including a fixed seat, a main board, two motors and two rollers, the fixed seat is fixedly arranged on the side wall of the mounting shaft, the main board and the motor are both arranged on the fixed seat, the two motors are adjacently arranged on the fixed seat, the output shafts of the motors are parallel to the mounting shaft, and the output shafts of the two motors are in opposite directions, the rollers and the motors are arranged one by one, and the fixed seat, the main board and the motor are enclosed, the outer ends of the rollers are rotatably sleeved on the corresponding positions of the mounting shaft, the main board is electrically connected to the two motors respectively, and the output shafts of the motors are drivingly connected to the corresponding rollers.

[0008] Preferably, the display mechanism is provided in plurality and distributed along the axial direction of the installation shaft.

[0009] Preferably, a fixing ring is fixedly sleeved on the outer wall of the fixing seat, the fixing ring is coaxial with the installation shaft, and the inner end of the roller can be rotatably sleeved on the fixing ring.

[0010] Preferably, the inner end of the drum and the fixed ring, and the outer end of the drum and the mounting shaft are rotatably connected via bearings.

[0011] Preferably, an inner tooth structure is provided on the inner wall of the drum along the circumferential direction, and a gear is sleeved on the output shaft of the motor, and the gear is meshed with the inner tooth structure.

[0012] Preferably, the motor is a double-headed motor, and one end of the motor away from the output shaft is drivingly connected to a detection shaft. A trigger member is provided on the detection shaft, and a sensing member is provided on the main board. Rotating the detection shaft can make the trigger member approach or move away from the sensing member, and when the trigger member approaches the sensing member, the sensing member can be triggered.

[0013] Preferably, the induction element is a magnetic induction element, and the trigger element is a magnet.

[0014] Preferably, the sensing element is a Hall sensor.

[0015] Preferably, a cam is provided on the detection shaft, an eccentric end of the cam can be close to or away from the sensing element, and the trigger element is arranged on the eccentric end of the cam.

[0016] Implementing the embodiments of the present utility model will have the following beneficial effects:

[0017] After adopting the above-mentioned rotary display device, the main board can control the rotation of the motor so as to drive the roller to intermittently rotate a specific angle, thereby changing the time information located in the display frame to achieve the effect of running time. The motor is directly arranged on the side wall of the installation shaft corresponding to the roller, so as to avoid stacking the motor at the end of the installation shaft, and reduce the occupation of the motor on the installation space at the end of the rotary display device, so as to shorten the length of the rotary display device and reduce the volume of the rotary clock. At the same time, the reverse arrangement of the two adjacent motors is also conducive to shortening the length of the roller, so as to increase the number of rollers that can be installed per unit length, increase the information display density of the rotary display device, make the rotary display device more compact as a whole, and also help to shorten the transmission distance between the motor and the roller, avoid the use of complex transmission mechanism for transmission, reduce the difficulty of device assembly and maintenance, reduce the load of the motor, reduce power consumption, and be more energy-saving and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] in:

[0020] Figure 1 It is a three-dimensional diagram of the utility model;

[0021] Figure 2 It is an exploded view of the utility model;

[0022] Figure 3 It is a three-dimensional diagram of some parts in the utility model.

[0023] In the figure: 1. mounting shaft; 2. display mechanism; 3. fixing seat; 31. fixing ring; 4. main board; 5. motor; 51. output shaft; 52. gear; 53. detection shaft; 54. cam; 6. roller; 61. internal gear structure; 7. bearing; 8. trigger part; 9. induction part. DETAILED DESCRIPTION

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the present invention; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present invention or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0025] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0026] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0027] like Figure 1-3As shown, a rotary display device comprises a mounting shaft 1 and a display mechanism 2 arranged on the mounting shaft 1, the mounting shaft 1 can be made of any material with strength greater than ABS plastic, the display mechanism 2 comprises a fixing seat 3, a main board 4, two motors 5 and two rollers 6, the fixing seat 3 is fixedly arranged on the side wall of the mounting shaft 1, the main board 4 and the motor 5 are both arranged on the fixing seat 3, the two motors 5 are adjacently arranged on the fixing seat 3, the output shafts 51 of the motors 5 are parallel to the mounting shaft 1, and the output shafts 51 of the two motors 5 are in opposite directions, the rollers 6 are arranged in a one-to-one correspondence with the motors 5, and the fixing seat 3, the main board 4 and the motor 5 are enclosed therein, the outer ends of the rollers 6 are rotatably sleeved on the corresponding positions of the mounting shaft 1, the main board 4 is electrically connected to the two motors 5 respectively, and the output shafts 51 of the motors 5 are drivingly connected to the corresponding rollers 6.

[0028] Specifically, in actual use, the two ends of the mounting shaft 1 can be connected to the outside through a bracket or a hanging rope (such as a bracket is vertically provided on the top of the base, and the bottom side of the end of the mounting shaft 1 is connected and fixed to the corresponding bracket), so that the drum 6 is suspended in the air so that the drum 6 can rotate; the main board 4 can be connected to the external power supply through the wire; various time information can be recorded on the drum 6, such as the number representing "hour", the number representing "minute", the number representing "second", the number representing the year, the number representing the month, the number representing the date, etc. In this way, the revolving display device has more information that can be displayed, and the displayed information includes but is not limited to time information. The drum 6 can also be used to display information such as temperature and humidity. Of course, for the display of information such as temperature and humidity, it is necessary to cooperate with the fixed seat 3 to set sensors such as thermometers and hygrometers, and the motor 5 drives the drum 6 to rotate according to the feedback information of the thermometer and hygrometer. Of course, a page turning structure can also be installed on the outside of the drum 6, so that the revolving display device becomes a revolving page turning clock; a display frame for selecting time information can be added to the fixed seat 3, so that the user can refer to the time information moved to the display frame.

[0029] In one embodiment, the fixing seat 3 is columnar and coaxial with the mounting shaft 1. The rollers 6 can be rotatably sleeved on the outer side of the fixing seat 3 one by one so that the fixing seat 3 supports the rotation of the rollers 6. The side wall of the roller 6 can be provided with a plurality of placement notches, and the placement notches are spirally distributed along the circumference of the roller 6. The motors 5 correspond to the placement notches one by one and are embedded in the corresponding placement notches. The motors 5 are arranged in the same direction as the rollers 6, thereby avoiding stacking of the motors 5 in a straight direction. The length of the mounting shaft 1 can be effectively utilized so as to arrange more motors 5 and rollers 6 (not shown in the drawings).

[0030] In one embodiment, the output shaft 51 of the motor 5 may be provided with a rubber wheel, the side wall of the rubber wheel abuts against the arc-shaped inner wall of the drum 6. Since the friction of rubber is relatively large, when the output shaft 51 of the motor 5 rotates, the drum 6 can be driven to rotate by the rubber wheel (not shown in the drawings).

[0031] In this embodiment, the main board 4 can control the rotation of the motor 5 so as to drive the drum 6 to intermittently rotate a specific angle, thereby changing the time information in the display frame to achieve the effect of running time. By replacing the mounting shaft 1 with a stainless steel material, the load-bearing capacity of the mounting shaft 1 is improved, so that the motor 5 is directly arranged on the side wall of the mounting shaft 1 corresponding to the drum 6, avoiding the motor 5 from being piled up at the end of the mounting shaft 1, and reducing the occupation of the motor 5 on the installation space at the end of the rotary display device, so as to shorten the length of the rotary display device and reduce the volume of the rotary clock. At the same time, the reverse arrangement of the two adjacent motors 5 is also conducive to reducing the length of the drum 6, so as to increase the number of drums 6 that can be installed per unit length, increase the information display density of the rotary display device, make the rotary display device more compact as a whole, and also help shorten the transmission distance between the motor 5 and the drum 6, avoid using a complex transmission mechanism for transmission, reduce the difficulty of device assembly and maintenance, reduce the load of the motor 5, reduce power consumption, and be more energy-saving and environmentally friendly.

[0032] Furthermore, a plurality of display mechanisms 2 are provided and distributed along the axial direction of the installation shaft 1 .

[0033] Furthermore, a fixing ring 31 is fixedly sleeved on the outer wall of the fixing seat 3, and the fixing ring 31 is coaxial with the mounting shaft 1. The inner end of the drum 6 can be rotatably sleeved on the fixing ring 31, so that the fixing ring 31 provides a supporting force for the inner end of the drum 6, so that the drum 6 rotates more smoothly.

[0034] Specifically, the inner end of the roller 6 refers to the end of the roller 6 facing the other roller 6, and the outer end of the roller 6 refers to the end opposite to its inner end; the direction of the output shaft 51 refers to the direction of the line from the end of the output shaft 51 close to the motor 5 to the end of the output shaft 51 away from the motor 5.

[0035] Furthermore, the inner end of the drum 6 and the fixed ring 31, as well as the outer end of the drum 6 and the mounting shaft 1 are rotatably connected via bearings 7 to prevent mechanical failure of the drum 6, reduce the friction resistance encountered by the drum 6 during rotation, improve the smoothness of rotation of the drum 6, further reduce the driving power consumption of the motor 5, and enhance the energy-saving effect.

[0036] Furthermore, an internal tooth structure 61 is provided on the inner wall of the drum 6 in the circumferential direction, and a gear 52 is sleeved on the output shaft 51 of the motor 5. The gear 52 meshes with the internal tooth structure 61. The output shaft 51 of the motor 5 can drive the gear 52 to rotate, and the gear 52 will drive the drum 6 to rotate around the mounting shaft 1 and the fixing ring 31 through the internal tooth structure 61.

[0037] Furthermore, the motor 5 is a double-headed motor 5, and one end of the motor 5 away from the output shaft 51 is driven and connected to the detection shaft 53. A trigger member 8 is provided on the detection shaft 53, and a sensing member 9 is provided on the main board 4. Rotating the detection shaft 53 can make the trigger member 8 approach or move away from the sensing member 9. When the trigger member 8 approaches the sensing member 9, the sensing member 9 can be triggered.

[0038] In one embodiment, the trigger member 8 may be a wheel disk having a notch at one end thereof, and the sensing member 9 may be a photoelectric sensor, such as an optical coupler, which corresponds to the notch. Under normal circumstances, the wheel disk blocks the optical coupler. When the wheel disk rotates and the notch moves to the optical coupler, the transmitting end and the receiving end of the optical coupler may be connected through the notch, thereby triggering the optical coupler and assisting the main board 4 in calculating the number of rotations of the detection shaft 53 (not shown in the drawings).

[0039] In one embodiment, the trigger member 8 can be an eccentric wheel, and the sensing member 9 can be a mechanical switch such as a micro switch. When the eccentric wheel rotates so that its eccentric end abuts against the micro switch, the micro switch can be triggered, thereby assisting the main board 4 to calculate the number of rotations of the detection shaft 53 (not shown in the drawings).

[0040] Furthermore, the induction element 9 is a magnetic induction element, and the trigger element 8 is a magnet.

[0041] Furthermore, the sensing element 9 is a Hall sensor.

[0042] Specifically, the sensing element 9 may be a magnetoresistive sensor or a Hall sensor. In the present embodiment, a Hall sensor is preferred. When the trigger element 8 is farthest from the sensing element 9, the Hall voltage value of the sensing element 9 is an initial value. When the trigger element 8 is closest to the sensing element 9, the Hall voltage value of the sensing element 9 is a counting value. The main board 4 uses a high-precision crystal oscillator chip as a control unit, which can effectively improve the movement accuracy of the motor 5.

[0043] In this embodiment, take the example that the drum 6 rotates once per minute, for example, when the detection shaft 53 rotates 6 circles, the output shaft 51 rotates 6 degrees (assuming that the output shaft 51 can drive the drum 6 to rotate at the same angle, the drum 6 rotating 6 degrees can just change the time information located in the display frame). When the main board 4 counts that one minute has passed, the main board 4 will control the motor 5 to start, so that the detection shaft 53 and the output shaft 51 rotate synchronously. The output shaft 51 will rotate at a slow speed, while the detection shaft 53 will rotate rapidly, thereby driving the trigger member 8 to approach the sensing member 9 and then move away from the sensing member 9, and repeat this cycle. Whenever the trigger member 8 first approaches and then moves away from the sensing member 9, the magnetic field strength around the sensing member 9 first increases and then decreases, so that the Hall voltage value inside the sensing member 9 undergoes a process of increasing from the initial value to the count value and then decreasing back to the initial value. Whenever the Hall voltage value of the sensing member 9 undergoes the above-mentioned change process, the main board 4 will proceed. The motor 5 is counted once, so the mainboard 4 can obtain the number of rotations of the detection shaft 53 through the cooperation of the trigger member 8 and the sensor member 9, so as to judge the rotation angle of the output shaft 51. When the detection shaft 53 rotates to the corresponding number of circles, the output shaft 51 will drive the roller 6 to rotate, and change the time information in the display frame. At this time, the mainboard 4 will shut down the motor 5, so as to avoid over-rotation of the output shaft 51, so as to achieve the effect that the motor 5 is started only once a minute, and the roller 6 is driven to rotate a specific angle at a time, so as to change the time information in the display frame, so that the torque of the motor 5 is greater, the working efficiency is higher, and the mechanical loss and noise of the rotary display device are reduced. At the same time, the intermittent working mode of the motor 5 also makes it stay in a dormant state for a long time, effectively reducing the energy consumption of the rotary display device, and being more energy-saving and environmentally friendly. It should be noted that the ratio of the number of rotations of the detection shaft 53 to the corresponding rotation angle of the output shaft 51 is not unique, and it shall be subject to the debugging during actual production.

[0044] Furthermore, a cam 54 is provided on the detection shaft 53, and the eccentric end of the cam 54 can be close to or away from the sensing member 9. The trigger member 8 is arranged on the eccentric end of the cam 54 so that the movement range of the trigger member 8 can be increased through the cam 54, thereby increasing the difference between the initial value of the sensing member 9 and the counting value, thereby ensuring the detection accuracy of the sensing member 9 and improving the counting accuracy.

[0045] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. A rotating display device, characterized in that: include: A mounting shaft and a display mechanism disposed on the mounting shaft; The display mechanism includes a fixed seat, a main board, two motors and two rollers. The fixed seat is fixedly arranged on the side wall of the installation shaft. The main board and the motor are both arranged on the fixed seat. The two motors are adjacently arranged on the fixed seat. The output shafts of the motors are parallel to the installation shaft, and the output shafts of the two motors are in opposite directions. The rollers are arranged in a one-to-one correspondence with the motors and enclose the fixed seat, the main board and the motors. The outer ends of the rollers are rotatably sleeved on the corresponding positions of the installation shaft. The main board is electrically connected to the two motors respectively, and the output shafts of the motors are drivingly connected to the corresponding rollers.

2. A rotating wheel display device according to claim 1, characterized in that: The display mechanisms are provided in plurality and distributed along the axial direction of the installation shaft.

3. A rotating wheel display device according to claim 1, characterized in that: A fixing ring is fixedly sleeved on the outer wall of the fixing seat. The fixing ring is coaxial with the installation shaft, and the inner end of the roller can be rotatably sleeved on the fixing ring.

4. A rotating wheel display device according to claim 3, characterized in that: The inner end of the roller and the fixing ring, as well as the outer end of the roller and the mounting shaft are rotatably connected via bearings.

5. The rotating wheel display device according to claim 1, characterized in that: An inner tooth structure is provided on the inner wall of the drum along the circumferential direction, and a gear is sleeved on the output shaft of the motor, and the gear is meshed with the inner tooth structure.

6. The rotating wheel display device according to claim 1, characterized in that: The motor is a double-headed motor, one end of the motor away from the output shaft is drivingly connected to a detection shaft, a trigger member is provided on the detection shaft, and a sensing member is provided on the main board. Rotating the detection shaft can make the trigger member approach or move away from the sensing member, and when the trigger member approaches the sensing member, the sensing member can be triggered.

7. A rotating wheel display device according to claim 6, characterized in that: The induction element is a magnetic induction element, and the trigger element is a magnet.

8. The rotating wheel display device according to claim 7, characterized in that: The induction element is a Hall sensor.

9. The rotating wheel display device according to claim 7, characterized in that: A cam is arranged on the detection shaft, the eccentric end of the cam can be close to or away from the sensing element, and the trigger element is arranged on the eccentric end of the cam.

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