CN213299391U

CN213299391U - Module ejection mechanism and display screen box

Info

Publication number: CN213299391U
Application number: CN202022215274.6U
Authority: CN
Inventors: 贺金锋; 林志彪
Original assignee: Shenzhen Zhouming Technology Co Ltd
Current assignee: Shenzhen Zhouming Technology Co Ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-05-28
Anticipated expiration: 2030-09-30

Abstract

The utility model discloses a module ejection mechanism and display screen box belongs to display screen box assembly technical field. The module ejection mechanism comprises a control mainboard, an ejection power motor, a gear reducer, an eccentric wheel, a sliding rod and a plurality of travel switches, wherein the control mainboard is arranged on a box body frame respectively, the control mainboard is electrically connected with the ejection power motor and the travel switches respectively, the ejection power motor is connected with the eccentric wheel through the gear reducer in a driving mode, one end of the sliding rod is abutted to the display module, the other end of the sliding rod is fastened on the eccentric wheel, the travel switches are arranged on one side, adjacent to the eccentric wheel or the sliding rod, of the gear reducer, and the eccentric wheel or the sliding rod sequentially and movably abut against each travel switch. This technical scheme, it can effectively solve current LED display module assembly and dismantle the mode and lead to knocking off the lamp pearl because of artificial maloperation easily, has increased the degree of difficulty of maintaining, has brought many inconvenient technical problem for the user.

Description

Module ejection mechanism and display screen box

Technical Field

The utility model relates to a display screen technical field, in particular to module ejection mechanism and display screen box.

Background

The display screen box generally comprises an LED display module and an LED box frame, and the LED display module and the LED box frame are generally connected together through magnetic attraction or plug connectors. To the display screen box of this kind of structure, most realize the front maintenance through manual among the prior art, magnetism or evacuation, though the cost is lower, but easy because artificial maloperation leads to knocking off the lamp pearl, has increased the degree of difficulty of maintaining, has brought many inconveniences for the user.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a module ejection mechanism and display screen box, and it aims at solving current LED display module and dismantles the mode and leads to knocking away the lamp pearl because artificial maloperation easily, has increased the degree of difficulty of maintaining, has brought many inconvenient technical problem for the user.

To achieve the above object, the present invention provides a module ejection mechanism, which is adapted to be assembled between a display module and a box frame connected together by a magnetic attraction connection or a plug connector, the module ejection mechanism comprises a control main board, an ejection power motor, a gear reducer, an eccentric wheel, a sliding rod and a plurality of travel switches which are respectively arranged on the box body frame, the control main board is respectively electrically connected with the ejection power motor and the travel switches, the ejection power motor is connected with the eccentric wheel through the gear reducer in a driving way, one end of the sliding rod is abutted against the display module, the other end of the sliding rod is fastened on the eccentric wheel, and the plurality of travel switches are arranged on one side of the gear reducer, which is adjacent to the eccentric wheel or the sliding rod, so that the eccentric wheel or the sliding rod sequentially and movably abut against each travel switch.

Optionally, the gear reducer includes a reduction box body, and a sun gear and a multi-stage planetary wheel assembly which are arranged in the reduction box body and are sequentially engaged with each other, the sun gear is fastened on a motor shaft in the reduction box body, the ejection power motor extends to the inside of the reduction box body, each stage of the planetary wheel assembly includes a planetary wheel, a planetary frame and an inner gear ring, and the eccentric wheel is fixedly arranged on the planetary frame of the planetary wheel assembly far away from the last stage where the ejection power motor is located.

Optionally, the stroke switches include a first stroke switch, a second stroke switch and a third stroke switch, the first stroke switch, the second stroke switch and the third stroke switch are respectively installed at a side of the reduction box body adjacent to the eccentric wheel, and the first stroke switch, the second stroke switch and the third stroke switch respectively correspond to a rotation position of the eccentric wheel.

Optionally, the gear reducer includes a reduction box, and a main gear and multiple stages of pinions which are arranged in the reduction box and are sequentially engaged with each other, the main gear is fastened to a motor shaft of the ejection power motor extending into the reduction box, and the eccentric wheel is fixedly arranged on the last stage of the pinions far away from the ejection power motor.

Optionally, the stroke switches include a fourth stroke switch and a fifth stroke switch, the fourth stroke switch and the fifth stroke switch are respectively installed on one side of the reduction box body adjacent to the sliding rod, the sliding rod is respectively provided with a first protruding portion in movable interference fit with the fourth stroke switch and a second protruding portion in movable interference fit with the fifth stroke switch, and the fourth stroke switch and the fifth stroke switch respectively correspond to a lifting position of the sliding rod.

In addition, in order to achieve the above object, the present invention further provides a module ejection mechanism, adapted to be assembled between a display module and a box frame connected together by a magnetic attraction connection or a plug connector, the module ejection mechanism comprising a control main board, an ejection motor, a gear reducer, a spiral cam, a push wheel and a plurality of travel switches, respectively mounted on the box frame, the control main board being electrically connected to the ejection motor and the travel switches, respectively, the ejection motor being connected to the spiral cam by driving of the gear reducer, one side surface of the push wheel abutting against the display module, the other side surface of the push wheel being provided with a protrusion movably abutting against the spiral cam, the travel switches being mounted on a side of the gear reducer adjacent to the spiral cam, so that the spiral cam is sequentially and movably abutted against each travel switch.

Optionally, the gear reducer includes a reduction box body, and a sun gear and a multi-stage planetary wheel assembly which are arranged in the reduction box body and are sequentially engaged and connected, the sun gear is fastened on a motor shaft in the reduction box body, the ejection power motor extends to the inside of the reduction box body, each stage of the planetary wheel assembly includes a planetary wheel, a planetary frame and an inner gear ring, and the spiral cam is fixedly arranged on the planetary frame of the planetary wheel assembly far away from the last stage where the ejection power motor is located.

Optionally, the gear reducer includes a reduction box, and a main gear and multiple stages of pinions which are arranged in the reduction box and are sequentially engaged with each other, the main gear is fastened to a motor shaft of the ejection power motor extending into the reduction box, and the spiral cam is fixedly arranged on the last stage of the pinions far away from the ejection power motor.

Optionally, the travel switches include a sixth travel switch and a seventh travel switch, the sixth travel switch and the seventh travel switch are respectively installed on a side of the reduction box body adjacent to the spiral cam, an outer protruding portion which movably abuts against the sixth travel switch or the seventh travel switch is arranged along an edge of the spiral cam, and the sixth travel switch and the seventh travel switch respectively correspond to a rotation position of the spiral cam.

In addition, for realizing above-mentioned mesh, the utility model also provides a display screen box, the display screen box includes a plurality of display module assemblies and box frame, each the display module assembly is in through magnetism to inhale connection or plug connector connection assembly on the box frame, and each the display module assembly with still be equipped with foretell module ejection mechanism between the box frame.

The utility model provides a module ejection mechanism and a display screen box body, wherein the module ejection mechanism comprises a control main board, an ejection power motor and a gear reducer which are respectively arranged on a box body frame, the control main board is electrically connected with the ejection power motor and the travel switches respectively, the ejection power motor is connected with the eccentric wheel (or the spiral cam) through a gear reducer in a driving mode, one end of the sliding rod (or one side surface of the pushing wheel) is abutted to the display module, the other end of the sliding rod is fastened on the eccentric wheel (or the other side surface of the pushing wheel is provided with a protruding portion movably abutted to the spiral cam), and the travel switches are arranged on one side, close to the eccentric wheel (or the sliding rod or the spiral cam), of the gear reducer and are enabled to abut against each travel switch sequentially and movably. Therefore, when the display module needs to be maintained in the front position, the control main board of the module ejection mechanism can control the ejection power motor to rotate correspondingly, the output rotating speed of the ejection power motor is reduced through the gear reducer, the torque is increased and transmitted to the eccentric wheel (or the spiral cam), and the eccentric wheel (or the spiral cam) drives the sliding rod (or the push wheel) to eject the display module better, so that the front maintenance is realized. Simultaneously, because eccentric wheel (or slide bar or helical cam) is rotating the in-process, can be in proper order each travel switch of movable conflict, alright monitor the rotational position of eccentric wheel (or slide bar or helical cam) constantly through these travel switches like this, ensure that the control mainboard makes accurate control to the whole function of ejecting power motor, whole process is simple safety, easily realize the front-end maintenance of module fast, and simultaneously, effectively improve the convenience of operation, both labour saving and time saving, can prevent again because of the maloperation and lead to knocking away the problem of lamp pearl. It is thus clear that this technical scheme, it can effectively solve current LED display module assembly and dismantle the mode and lead to knocking off the lamp pearl because of artificial maloperation easily, has increased the degree of difficulty of maintaining, has brought many inconvenient technical problem for the user.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical 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, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural view of a display screen box according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of a module ejection mechanism of the display screen box shown in fig. 1.

Fig. 3 is a schematic diagram of a partially disassembled structure of the module ejection mechanism shown in fig. 2.

Fig. 4 is a schematic view illustrating a first rotation state of the module ejection mechanism shown in fig. 2.

Fig. 5 is a schematic view illustrating a second rotation state of the module ejection mechanism shown in fig. 2.

Fig. 6 is a third schematic view illustrating a rotation state of the module ejection mechanism shown in fig. 2.

Fig. 7 is another schematic structural diagram of the module ejection mechanism of the display screen box shown in fig. 1.

Fig. 8 is a schematic diagram of a partially disassembled structure of the module ejection mechanism shown in fig. 7.

Fig. 9 is a schematic structural diagram of another module ejection mechanism of the display screen box shown in fig. 1.

Fig. 10 is a schematic diagram of a partially disassembled structure of the module ejection mechanism shown in fig. 9.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1 and 2, an embodiment of the present invention provides a display screen box 1, where the display screen box 1 includes a plurality of display modules 100 and a box frame 200, each display module 100 is connected through magnetic attraction or assembled on the box frame 200 through a plug connector, and a module ejection mechanism 300 is further assembled between each display module 100 and the box frame 200. The module ejection mechanism 300 includes a control main board 310, an ejection power motor 320, a gear reducer 330, an eccentric wheel 340, a sliding rod 350 and a plurality of travel switches 360, which are respectively installed on the box frame 200, the control main board 310 is electrically connected with the ejection power motor 320 and the travel switches 360, the ejection power motor 320 is driven by the gear reducer 330 to connect the eccentric wheel 340, one end of the sliding rod 350 abuts against the display module 100, the other end of the sliding rod 350 is fastened on the eccentric wheel 340, and the travel switches 360 are installed on one side of the gear reducer 330 adjacent to the eccentric wheel 340, so that the eccentric wheel 340 sequentially and movably abuts against each travel switch 360.

In this embodiment, as shown in fig. 2 and 3, the gear reducer 330 includes a reduction case 331, and a sun gear 332 and a plurality of planetary gear assemblies 333 which are disposed in the reduction case 331 and are sequentially engaged with each other, the sun gear 332 is fastened to a motor shaft extending from the ejection power motor 320 into the reduction case 331, each planetary gear assembly 333 includes a planetary gear, a planetary carrier, and an annular gear, and the eccentric gear 340 is fixed to the planetary carrier of the last planetary gear assembly 333 away from the ejection power motor 320. That is, the gear reducer 330 in this embodiment may be specifically a planetary gear reducer, which has many advantages of small size, high transmission efficiency, wide reduction range, high precision, and the like, and can effectively reduce the rotation speed increase torque of the ejection power motor 320 and reduce the rotational inertia ratio of the load/motor on the premise of ensuring precision transmission.

As shown in fig. 2 and 3, the travel switches 360 include a first travel switch 361, a second travel switch 362 and a third travel switch 363, the first travel switch 361, the second travel switch 362 and the third travel switch 363 are respectively installed on a side of the reduction box 331 adjacent to the eccentric 340, and the first travel switch 361, the second travel switch 362 and the third travel switch 363 respectively correspond to a rotation position of the eccentric 340. As shown in fig. 4, when the eccentric 320 is in contact with the first stroke switch 361, the slide lever 350 is at the lowest position, i.e., the first position, at which the pushing force of the slide lever 350 reaches the minimum value. As shown in fig. 5, when the eccentric 340 is in contact with the second stroke switch 362, the slide lever 350 is in the intermediate position, i.e., the second position. As shown in fig. 6, when the eccentric 340 contacts the third stroke switch 363, the slide lever 350 is at the uppermost position, i.e., the third position, at which the pushing force of the slide lever 350 reaches the maximum. It can be seen that each travel switch corresponds to a certain position, when the sliding rod 350 starts to work to eject the display module 100 to a certain height (i.e. when touching the third travel switch 363), after the display module 100 is taken out, the sliding rod 350 automatically returns to the initial position under the control of the control main board 310, which is convenient for assembling the module next time, and in practical application, one of the second travel switch 362 and the third travel switch 363 can be used according to the height to be ejected.

The above mentioned planetary gear reducer used in the gear reducer 330 is only one implementation form, and it can be replaced by the following structure for those skilled in the art, as shown in fig. 7 and 8, the gear reducer 430 of the module ejection mechanism 400 includes a reduction box 431, and a main gear 432 and a multi-stage pinion 433 which are embedded in the reduction box 431 and are meshed with each other in sequence, the main gear 432 is fastened on a motor shaft extending from the ejection power motor into the reduction box, and the eccentric 440 is fixed on the last stage pinion 433 away from the ejection power motor 420. At this time, the gear reducer 430 is specifically a common gear reducer, the travel switches 460 may include a fourth travel switch 464 and a fifth travel switch 465, the fourth travel switch 464 and the fifth travel switch 465 are respectively installed at one side of the reduction box 461 adjacent to the sliding rod 450, the sliding rod 450 is respectively provided with a first protruding portion 451 in movable interference fit with the fourth travel switch 464 and a second protruding portion 452 in movable interference fit with the fifth travel switch 465, and the fourth travel switch 464 and the fifth travel switch 465 respectively correspond to a lifting position of the sliding rod 450. When the sliding lever 450 is raised to the uppermost position, the first protruding portion 451 abuts against the fourth stroke switch 464, and when the sliding lever 450 is lowered to the lowermost position, the second protruding portion 452 abuts against the fifth stroke switch 465.

Specifically, in the above embodiment, the

eccentric wheels

340 and 440 are engaged with the

sliding rods

350 and 450 to eject the display module 100, but it is also possible for those skilled in the art to replace the structure, as shown in fig. 9 and 10, that the module ejecting mechanism 500 employs a spiral cam 540 to engage with a pushing wheel 550 instead of the above

eccentric wheels

340 and 440 to engage with the

sliding rods

350 and 450, at this time, an ejecting power motor 520 is connected to the spiral cam 540 through a gear reducer 530, one side surface of the pushing wheel 550 abuts against the display module 100, the other side surface of the pushing wheel 550 is provided with a protrusion 551 movably abutted against the spiral cam 540, and a plurality of travel switches 560 are disposed on a side of the gear reducer 530 adjacent to the spiral cam 540, so that the spiral cam 540 sequentially and movably abuts against each travel switch 560. Specifically, the spiral cam 540 is fixedly disposed on the planet carrier of the last-stage planetary gear assembly 533 away from the ejection power motor 520 (when the gear reducer 530 is a common gear reducer, the spiral cam 540 may also be fixedly disposed on the last-stage pinion away from the ejection power motor 520). The travel switches 560 include a sixth travel switch 566 and a seventh travel switch 567, the sixth travel switch 566 and the seventh travel switch 567 are respectively installed on a side of the reduction box 561 adjacent to the spiral cam 540, an outer protrusion 541 is provided along an edge of the spiral cam 540 and movably abutted against the sixth travel switch 566 or the seventh travel switch 567, and the sixth travel switch 566 and the seventh travel switch 567 respectively correspond to a rotation position of the spiral cam 540. That is, when the spiral cam 540 is rotated counterclockwise in the drawing such that the outer protrusion 541 thereof is moved against the sixth stroke switch 566, the push wheel 550 is lowered to the lowermost position. When the push wheel 550 is rotated clockwise in the figure to make the outer protrusion 541 movably abut against the seventh travel switch 567, the push wheel 550 is raised to the highest position.

The module ejection mechanism and the display screen box body in the embodiment of the utility model comprise a control mainboard, an ejection power motor and a gear reducer which are respectively arranged on a box body frame, the control main board is electrically connected with the ejection power motor and the travel switches respectively, the ejection power motor is connected with the eccentric wheel (or the spiral cam) through a gear reducer in a driving mode, one end of the sliding rod (or one side surface of the pushing wheel) is abutted to the display module, the other end of the sliding rod is fastened on the eccentric wheel (or the other side surface of the pushing wheel is provided with a protruding portion movably abutted to the spiral cam), and the travel switches are arranged on one side, close to the eccentric wheel (or the sliding rod or the spiral cam), of the gear reducer and are enabled to abut against each travel switch sequentially and movably. Therefore, when the display module needs to be maintained in the front position, the control main board of the module ejection mechanism can control the ejection power motor to rotate correspondingly, the output rotating speed of the ejection power motor is reduced through the gear reducer, the torque is increased and transmitted to the eccentric wheel (or the spiral cam), and the eccentric wheel (or the spiral cam) drives the sliding rod (or the push wheel) to eject the display module better, so that the front maintenance is realized. Simultaneously, because eccentric wheel (or slide bar or helical cam) is rotating the in-process, can be in proper order each travel switch of movable conflict, alright monitor the rotational position of eccentric wheel (or slide bar or helical cam) constantly through these travel switches like this, ensure that the control mainboard makes accurate control to the whole function of ejecting power motor, whole process is simple safety, easily realize the front-end maintenance of module fast, and simultaneously, effectively improve the convenience of operation, both labour saving and time saving, can prevent again because of the maloperation and lead to knocking away the problem of lamp pearl. It is thus clear that this technical scheme, it can effectively solve current LED display module assembly and dismantle the mode and lead to knocking off the lamp pearl because of artificial maloperation easily, has increased the degree of difficulty of maintaining, has brought many inconvenient technical problem for the user.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims

1. The utility model provides a module ejection mechanism, is applicable to the assembly between display module assembly and box frame, its characterized in that, module ejection mechanism including install respectively control mainboard, ejecting motor power, gear reducer, eccentric wheel, slide bar and a plurality of travel switch on the box frame, the control mainboard respectively with ejecting motor power reaches a plurality of travel switch carry out electric connection, ejecting motor power passes through gear reducer drive connects the eccentric wheel, the one end butt of slide bar the display module assembly, the other end fastening of slide bar is in on the eccentric wheel, a plurality of travel switch install gear reducer is neighbouring eccentric wheel or the one side at slide bar place makes eccentric wheel or slide bar activity conflict each in proper order travel switch.

2. The module ejection mechanism according to claim 1, wherein the gear reducer includes a reduction box body, and a sun gear and a multi-stage planetary wheel assembly which are arranged in the reduction box body and sequentially engaged with each other, the sun gear is fastened to a motor shaft extending from the ejection power motor into the reduction box body, each stage of the planetary wheel assembly includes a planetary wheel, a planetary carrier and an annular gear, and the eccentric wheel is fixedly arranged on the planetary carrier of the last stage of the planetary wheel assembly away from the ejection power motor.

3. The die set ejection mechanism of claim 2, wherein the plurality of travel switches comprises a first travel switch, a second travel switch, and a third travel switch, the first travel switch, the second travel switch, and the third travel switch are each disposed on a side of the reduction housing adjacent to where the eccentric is located, and the first travel switch, the second travel switch, and the third travel switch each correspond to a rotational position of the eccentric.

4. The module ejection mechanism according to claim 1, wherein the gear reducer includes a reduction box body, and a main gear and a plurality of stages of pinions which are disposed in the reduction box body and are sequentially engaged with each other, the main gear is fastened to a motor shaft extending from the ejection power motor into the reduction box body, and the eccentric wheel is fixed to the last stage of the pinions which is far from the ejection power motor.

5. The module ejector mechanism according to claim 4, wherein the stroke switches include a fourth stroke switch and a fifth stroke switch, the fourth stroke switch and the fifth stroke switch are respectively disposed on a side of the reduction box body adjacent to the sliding rod, the sliding rod is respectively provided with a first protruding portion in interference fit with the fourth stroke switch and a second protruding portion in interference fit with the fifth stroke switch, and the fourth stroke switch and the fifth stroke switch respectively correspond to a lifting position of the sliding rod.

6. A module ejection mechanism is suitable for being assembled between a display module and a box body frame and is characterized in that, the module ejection mechanism comprises a control main board, an ejection power motor, a gear reducer, a spiral cam, a push wheel and a plurality of travel switches which are respectively arranged on the box body frame, the control main board is respectively electrically connected with the ejection power motor and the travel switches, the ejection power motor is in driving connection with the spiral cam through the gear reducer, one side surface of the push wheel is abutted against the display module, the other side surface of the push wheel is provided with a convex part which is movably abutted and matched with the spiral cam, the travel switches are arranged on one side, adjacent to the spiral cam, of the gear reducer, so that the spiral cam sequentially and movably abuts against each travel switch.

7. The module ejection mechanism according to claim 6, wherein the gear reducer includes a reduction box body, and a sun gear and a multi-stage planetary gear assembly which are arranged in the reduction box body and are sequentially engaged with each other, the sun gear is fastened to a motor shaft extending from the ejection power motor into the reduction box body, each stage of the planetary gear assembly includes a planetary gear, a planetary carrier and an annular gear, and the spiral cam is fixedly arranged on the planetary carrier of the last stage of the planetary gear assembly away from the ejection power motor.

8. The module ejection mechanism according to claim 6, wherein the gear reducer includes a reduction box body, and a main gear and a plurality of stages of pinions which are disposed in the reduction box body and are sequentially engaged with each other, the main gear is fastened to a motor shaft extending from the ejection power motor into the reduction box body, and the spiral cam is fixed to the last stage of the pinions which is far from the ejection power motor.

9. The module ejection mechanism according to claim 7 or 8, wherein the travel switches include a sixth travel switch and a seventh travel switch, the sixth travel switch and the seventh travel switch are respectively disposed on a side of the reduction box body adjacent to the spiral cam, and an outer protrusion is disposed along an edge of the spiral cam and movably abuts against the sixth travel switch or the seventh travel switch, and the sixth travel switch and the seventh travel switch respectively correspond to a rotation position of the spiral cam.

10. A display screen box, characterized in that, the display screen box includes a plurality of display module assemblies and box frame, each display module assembly is through magnetism connection or plug connector connection assembly on the box frame, and each display module assembly with the box frame between still be equipped with the module ejection mechanism of any claim 1-9.