Rotary display mechanism capable of achieving storage

Abstract

A rotary display mechanism capable of realizing storage belongs to the technical field of display equipment and comprises a display screen, a time control module, a wireless charging transmitting module, a wireless charging receiving module, a protective barrel, an electric push rod, a linear bearing, a motor speed reducing mechanism, a reed switch, a magnet and a rainwater detection module. The display screen, the time control module, the wireless charging transmitting module, the wireless charging receiving module, the electric push rod, the linear bearing, the motor speed reducing mechanism, the reed switch, the magnet, the rainwater detection module and the protective barrel are installed together. According to the display device, display is carried out by rotating the multiple screens, people entering an exhibition at different angles can conveniently watch display content, the display device can be automatically turned on and turned off on time according to the time set by workers in the exhibition period, and the screens can be automatically stored and hidden in the protection barrel in the rainy day and the time period when nobody enters the exhibition site; therefore, convenience is brought to workers, and the fault probability of the screen and the like is correspondingly reduced.

Description

Technical Field

[0001] This utility model relates to the field of display equipment technology, and in particular to a rotating display mechanism that can be stored away. Background Technology

[0002] Display equipment used in various exhibitions (such as for promoting and showcasing industrial products) mainly includes two display methods: static (such as static display through printed materials) and dynamic (such as dynamic display through LCD screens). The display areas include outdoor and indoor spaces.

[0003] With technological advancements, the functions of display equipment have become increasingly sophisticated. For example, the authorized patent in my country, patent number "202123403028.4," entitled "A Digital Cultural and Creative Outdoor Display Device," describes it as having "good display capabilities, a convenient structure for installing the display cabinet, facilitating installation and disassembly, and the ability to accommodate display cabinets of different specifications. It also features diverse display functions, including hanging and placement, making it convenient for displaying digital cultural and creative products." As can be seen, while the patent achieves the described technical effects, it suffers from the following technical drawbacks due to structural limitations: First, it lacks an automatic power-on / off function. This means that during the exhibition, staff need to be on-site regularly to operate the device, which may cause some inconvenience. Second, it can only display content from a single angle, hindering accessibility for attendees from different locations and negatively impacting the overall display effect. Thirdly, when used outdoors (e.g., at outdoor exhibition venues), rain during the exhibition period (e.g., multiple consecutive days) necessitates relocation by staff to prevent rain from affecting equipment operation. This also causes inconvenience for staff, and if they lack a strong sense of responsibility or forget to move the equipment during rain, there is a risk of equipment malfunction (during off-peak hours, such as late at night, if staff fail to move the equipment to a safe indoor location, there is also a risk of damage by malicious individuals). Therefore, considering the above factors, providing a display structure that offers good display effects, automatically turns on and off on time, automatically retracts during rainy or off-peak hours, and provides automatic storage is highly necessary. Utility Model Content

[0004] To overcome the shortcomings of existing outdoor display equipment due to structural limitations, as described in the background art, this utility model provides a rotating display mechanism that, through the combined action of related structures, allows for the display of multiple screens, making it convenient for people entering the exhibition from different angles to view the content. Furthermore, it can automatically turn on and off at set times during the exhibition according to staff instructions. During rainy periods or when no one is at the exhibition, it can automatically retract and hide the screens within a protective cylinder, thus providing convenience for staff and reducing the likelihood of screen malfunctions.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A retractable rotating display mechanism includes a display screen, a time control module, a wireless charging transmitter module, a wireless charging receiver module, a protective cylinder, an electric push rod, a linear bearing, a motor reduction mechanism, a reed switch, a magnet, and a rain detection module. The upper end of the protective cylinder has an open structure, with the lower ends of the linear bearing and the electric push rod fixedly installed inside the lower part of the protective cylinder. The upper ends of the linear bearing and the electric push rod are fixedly installed on the lower end of the housing of the motor reduction mechanism. Multiple support rods are fixedly installed on the outer side of the upper end of the housing of the motor reduction mechanism. Component box A is fixedly installed on the upper end of the support rods. Component box A has an opening in the middle, and the rotating shaft of the motor reduction mechanism rotates within the opening. The wireless charging transmitter module is fixedly installed inside component box A. A component box B is fixedly installed at one end, with a gap between the lower end of component box B and the upper end of component box A. The wireless charging receiver module is installed inside component box B, and a fixing plate is fixedly installed on the upper end of component box B. The LCD screen is fixedly installed on the upper end of the fixing plate. A support rod is fixedly installed on the side of the housing of the motor reduction mechanism, and a magnet is fixedly installed on the side of the support rod. There are at least two reed switches, which are fixedly installed on the inner end of the protective cylinder with a gap between them. The time control module is installed inside component box C, and the rain detection module is fixedly installed on the outer end of the protective cylinder. The power input terminal of the LCD screen and the power output terminal of the wireless charging receiver module are electrically connected. The power output terminals of the time control module, the rain detection module, and the motor reduction mechanism are electrically connected to each other.

[0007] Furthermore, a protective plate is fixedly installed on the upper end of the display screen, and a sealing gasket is fixedly installed on the upper outer end of the protective cylinder.

[0008] Furthermore, there are multiple sets of the time control module, and the power input terminals of the three sets of time control modules are electrically connected.

[0009] Furthermore, the reed switch is a normally closed contact reed switch, wherein one power output terminal of each of the two time control modules is connected in series between the two power input terminals of the electric push rod via two reed switches.

[0010] Furthermore, when the movable column of the electric push rod is at the lower stop point, the lower end of the protective plate and the upper end of the protective cylinder are in sealed contact; when the movable column of the electric push rod is at the upper stop point, the lower end of the display screen is located at the upper end of the protective cylinder.

[0011] Compared with existing technologies, the advantages of this invention are as follows: Under the combined action of related structures, this invention uses a motor reduction mechanism to drive three LCD screens to rotate for information display (the wireless charging transmitter module supplies power to the three LCD screens via the wireless charging receiver module, ensuring that the three LCD screens can operate while rotating). This allows people entering the exhibition from different angles to easily view the displayed content. Through the time control module, it can automatically turn on and off according to the time set by the staff during the exhibition. Furthermore, during rainy periods or when no one is at the exhibition, it can automatically retract and hide the three LCD screens in a protective cylinder, thus providing convenience for staff and reducing the likelihood of screen malfunctions. Based on the above, this invention has good application prospects. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a schematic diagram of the overall structure of the display screen of this utility model in its stored state.

[0014] Figure 2 This is a schematic diagram of the overall structure of the display screen of this utility model when it is fully extended upwards.

[0015] Figure 3 This is the circuit diagram of this utility model.

[0016] Figure 4 This is a partial structural schematic diagram of the present invention. Detailed Implementation

[0017] Figure 1 , 2As shown in Figures 3 and 4, a retractable rotating display mechanism includes an LCD screen XS with a USB port (the screen displays content when a USB flash drive containing the display content is inserted into the USB port), a power switch S1, a power module A1, a time control module, a wireless charging transmitter module WF, a wireless charging receiver module JS, a protective cylinder 1, an electric push rod M1, a linear bearing 2, a motor reduction mechanism M, reed switches GH1 and GH2, a magnet 3, and a rain detection module A4. Two sets of linear bearings 2 are provided. The upper end of the protective cylinder 1 has an open structure, and the lower ends of the bushings of the two sets of linear bearings 2 are fixedly installed at a distance from each other in the lower middle part of the protective cylinder 1. The lower end of the electric push rod M1 is fixedly installed inside the lower end of the protective cylinder 1 and located between two sets of linear bearings 2; the shafts of the two sets of linear bearings 2 and the upper ends of the movable column of the electric push rod M1 are respectively fixedly installed at the lower end of the housing of the motor reduction mechanism M; three support rods 4 are vertically welded to the outer side of the upper end of the housing of the motor reduction mechanism M, and a hollow component box A5 is fixedly installed on the upper end of the support rods 4 (the lower end of the component box A5 is fixedly installed on the three support rods 4 around its outer perimeter). There is an annular opening 51 in the middle of the component box A5 (the inner diameter is larger than the outer diameter of the rotating shaft of the motor reduction mechanism M), and the rotating shaft of the motor reduction mechanism M rotates within the opening. The wireless charging transmitter module WF (its circuit board) A ring-shaped opening is located in the middle, with the inner diameter of the opening larger than the outer diameter of the shaft of the motor reduction mechanism M, and the shaft located inside the opening. This opening is fixedly installed inside the upper part of component box A5. A component box B6 is fixedly installed on the upper end of the shaft of the motor reduction mechanism M. Specifically, the lower part of component box B6 is fixedly installed on the upper part of the shaft, with a 2mm gap between the lower end of component box B6 and the upper end of component box A5, and they are on the same vertical plane. The wireless charging receiver module JS is installed inside the lower part of component box B6. There are three LCD screens XS. A fixing plate 101 is welded to the upper end of component box B. The three LCD screens XS are vertically arranged in a triangle and fixedly installed on the upper part of the fixing plate 101. The motor reduction mechanism... A support rod 7 is horizontally welded to the middle of the right side of the housing of mechanism M. The left side of magnet 3 is glued and fixed to the right side of support rod 7. There are two reed switches, GH1 and GH2, which are vertically fixed to the upper and middle right sides of the protective cylinder 1 respectively with a vertical distance between them. Power switch S1 (handle is located on the front outside of the protective cylinder), power module A1, and time control module are installed on the circuit board inside component box C8. Component box C8 is fixedly installed on the lower left side of the protective cylinder 1. Rainwater detection module A4 (and its connected wire enter the protective cylinder through an opening at the lower left end of the protective cylinder, which is sealed with sealant) is fixedly installed on the lower left side of the protective cylinder, and its detection head is located at the upper end.

[0018] Figure 1 , 2As shown in Figures 3 and 4, a protective plate 9 with an outer diameter larger than that of the protective cylinder is fixedly installed on the upper part of the housing of the three LCD screens XS. The external dimensions of the three LCD screens XS are smaller than the inner diameter of the protective cylinder 1. An annular hollow rubber sealing gasket (for sealing) is glued to the upper outer part of the protective cylinder 1. There are multiple identical sets of time control modules A2, A3, and A5. The power input terminals 1 and 2 of the three sets of time control modules A2, A3, and A5 are connected by wires. Reed switches GH1 and GH2 are normally closed reed switches. The moving contacts of reed switches GH1 and GH2 are vertically located on the left side of the right side of the protective cylinder. The power output terminals 3 and 4 of the time control module A2 and the positive and negative power input terminals of the motor reduction mechanism M are connected by wires. The power output terminals 3 and 4 of the time control modules A3 and A5 and the positive and negative and negative positive power input terminals of the electric push rod M1 are connected by wires (the power output terminal 3 of the time control modules A3 and A5 is connected in series between the positive and negative power input terminals of the electric push rod M1 through the two terminals of reed switches GH1 and GH2). When the movable column of the electric push rod M1 is at the lower dead center, the lower end of the protective plate 9 and the upper end of the protective cylinder 1 are in sealed contact. The magnet 3 and the left outer side of the reed switch GH2 in the middle of the protective cylinder are on the same plane (with a 2 mm gap between them). When the movable column of the electric push rod M1 is at the upper dead center, the lower ends of the three LCD displays XS are located at the upper outer end of the protective cylinder 1. The magnet 3 and the left outer side of the reed switch GH1 in the upper inner part of the protective cylinder 1 are on the same plane (with a 2 mm gap between them).

[0019] Figure 1 , 2 As shown in Figures 3 and 4, the power input terminals of the three LCD screens XS and the power output terminal of the wireless charging receiver module JS are connected by wires. The power input terminals 1 and 2 of power module A1 are connected by wires. The power output terminals 3 and 4 of power module A1 are connected to the power input terminals 1 and 2 of time control modules A2, A3, and A5, the power input terminals 1 and 2 of rain detection module A4, the power input terminal of wireless charging transmitter module WF, and the power switch S1 are connected by wires. The power output terminals 3 and 4 of rain detection module A4 and the power output terminals 3 and 4 of time control module A5 are connected by wires. The power input terminals 3 and 4 of power switch S1 and the positive and negative terminals of electric push rod M1 are connected by wires.

[0020] Figure 1 , 2As shown in Figures 3 and 4, after the AC 220V power supply enters the power input terminal of power module A1, the power output terminal of power module A1 will output a stable DC 12V power supply, which enters the power input terminals of the time control module, etc. (simultaneously, it enters the power input terminal of the wireless charging transmitter module WF, which is powered on and emits a wireless charging energy signal). This new type of device is placed for use at the exhibition site (more suitable for outdoor exhibitions at night, etc.). After the time control module A2 is powered on, it will output power to the power input terminal of the motor reduction mechanism M during specific time periods each day (e.g., from 8:00 AM to 10:00 PM each day); after the time control module A3 is powered on, it will output power to the positive and negative power input terminals of the electric push rod M1 during specific time periods each day (e.g., outputting power for 20 seconds at 7:55 AM each day). During the period when the motor reduction mechanism M is powered on, its rotating shaft will drive the wireless charging receiver module JS and the three displays XS to rotate via the fixed plate 101. At the same time, the rotating wireless charging receiver module JS will receive the wireless energy signal emitted by the wireless charging transmitter module WF and convert it into DC 12V power to power the three rotating displays XS. The wireless power supply method prevents the problem of the power supply wires getting tangled and causing the equipment to malfunction when the rotating displays are powered by wires. After the electric actuator M1 is powered on, its movable column will push the three displays and the motor reduction mechanism upward (the linear bearing plays a guiding and supporting role). When the movable column of the electric actuator M1 is at the top dead center, the lower ends of the three LCD displays XS are located at the upper outer end of the protective cylinder 1. The magnet 3 and the left outer side of the reed switch GH1 in the upper part of the protective cylinder 1 are on the same plane. The magnetic force of the magnet acts on the reed switch GH1, and the internal contacts of the reed switch GH1 are open. In this way, the electric actuator M1 will lose power and stop working (one end of the reed switch GH1 is connected to one of the power output terminals 3 of the time control module A3), preventing the movable column from continuing to move upward uncontrollably when the positive and negative power input terminals of the electric actuator are powered on, which would have an adverse effect on the normal control of the equipment.

[0021] Figure 1 , 2As shown in Figures 3 and 4, after the time control module A5 is powered on, it outputs power to the negative and positive power input terminals of the electric actuator M2 during specific time periods each day (e.g., outputting power for 20 seconds after 10 PM every night). After the electric actuator M1 is powered on, its movable column will drive the three displays, motor reduction mechanism, etc., to move downwards (the linear bearing plays a guiding and supporting role). When the movable column of the electric actuator M1 is at the lower stop point, the lower end of the protection plate 9 and the upper end of the protection cylinder 1 are in external sealing contact. The magnet 3 and the left outer side of the reed switch GH2 in the middle of the protection cylinder are on the same plane. The magnetic force of the magnet acts on the reed switch GH2, and the internal contacts of the reed switch GH2 are open. In this way, the electric actuator M1 will lose power and stop working (one end of the reed switch GH2 is connected to one of the power output terminals 3 of the time control module A5), preventing the uncontrolled upward movement of the movable column when the negative and positive power input terminals of the electric actuator are powered on from adversely affecting the normal control of the equipment. In practical applications, when there is no rain, pins 3 and 4 of the rain detection module A4 do not output power to the negative and positive power input terminals of the electric push rod, and the display screen continues to display content above the upper part of the protective cylinder 1. When it rains, the two metal probes at the top of the rain detection module A4 are wetted by water, and pins 3 and 4 output power to the negative and positive power input terminals of the electric push rod. After the electric push rod M1 is powered on, its movable column will drive the three display screens, motor reduction mechanism, etc. to move downwards. The lower end of the protection plate 9 and the upper end of the protective cylinder 1 are in sealed contact, minimizing the chance of rainwater wetting the display screen and causing it to malfunction. (After the rain stops, the staff can turn on the power switch S1, so that the 12V power directly enters the positive and negative power input terminals of the electric push rod, which pushes the three display screens back to the upper part of the protective cylinder to display content for the corresponding time period; the power switch is turned off after the display screens are in position.) Figure 4 As shown, power module A1 is a finished product of AC 220V to DC 12V power module; electric push rod M1 is a finished product of reciprocating electric telescopic rod with a power of 20W; motor reduction mechanism M is a finished product of coaxial motor gear reducer with a power of 100W and a shaft speed of 6 revolutions per minute; time control modules A2, A3, and A5 are microcomputer time control switches of the Chint brand kg316t model. They have two power input terminals, two power output terminals, and seven setting buttons. Operating the seven setting buttons allows setting the power output time of the two power output terminals; reed switches GH1 and GH2 are normally closed contact reed switches with glass housings; rain detection module A4 is a water immersion sensor of model HSM-WT202, which has two power input terminals and two power output terminals. Power is output when the two metal rods of the probe are wetted. Display screen XS is a finished product of 27-inch vertical LCD screen; wireless charging transmitter module WF and wireless charging receiver module JS are finished products of the brand ZoneCharge wireless charging transmitter and receiver module assembly with a power of 70W.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.

[0023] Furthermore, it should be understood that although this specification describes the embodiments, the embodiments do not necessarily contain only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A rotatable display mechanism capable of being stored, comprising a display screen, a time control module, a wireless charging transmitting module, a wireless charging receiving module, a protective cylinder, an electric push rod, a linear bearing, a motor reduction mechanism, a reed, a magnet, a rain detection module; characterized in that, The upper end of the protection cylinder is an open structure, and the lower ends of the linear bearing and the electric push rod are fixedly installed in the protection cylinder; the upper ends of the linear bearing and the electric push rod are fixedly installed at the lower end of the motor reduction mechanism; a plurality of support rods are fixedly installed at the upper end of the motor reduction mechanism, and an element box A is fixedly installed at the upper end of the plurality of support rods; the element box A has an opening in the middle, and the rotating shaft of the motor reduction mechanism is located in the opening; a wireless charging transmitting module is fixedly installed in the element box A; an element box B is fixedly installed at the upper end of the rotating shaft of the motor reduction mechanism, and the lower end of the element box B is spaced apart from the upper end of the element box A; a wireless charging receiving module is installed in the element box B, a fixed plate is fixedly installed at the upper end of the element box B, and a liquid crystal display is fixedly installed at the upper end of the fixed plate; a support rod is fixedly installed at the side end of the shell of the motor reduction mechanism, a magnet is fixedly installed at the side end of the support rod, and at least two dry reed tubes are fixedly installed at the inner side end of the protection cylinder; a timing module is installed in an element box C, and a rainwater detection module is fixedly installed at the outer end of the protection cylinder; the power input end of the liquid crystal display and the power output end of the wireless charging receiving module are electrically connected; the power output ends of the timing module and the rainwater detection module, the electric push rod, and the power input end of the motor reduction mechanism are electrically connected.

2. The stowable rotary display mechanism of claim 1, wherein, The upper end of the display screen is fixedly installed with a protection plate, and the outer upper end of the protection cylinder is fixedly installed with a sealing gasket.

3. The stowable rotary display mechanism of claim 1, wherein, The timing module has multiple sets, and the power input ends of three sets of timing modules are electrically connected.

4. The stowable rotary display mechanism of claim 1, wherein, The dry reed tube is a normally closed contact dry reed tube, and one power output end of two sets of timing modules is connected in series between the two power input ends of the electric push rod through the two dry reed tubes.

5. The stowable rotary display mechanism of claim 1, wherein, When the movable column of the electric push rod is located at the lower dead point, the lower end of the protection plate is in sealing contact with the upper end of the protection cylinder, and when the movable column of the electric push rod is located at the upper dead point, the lower end of the display screen is located at the outer upper end of the protection cylinder.

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