Translation and rotation folding screen

Abstract

The utility model provides a translation and rotation folding screen, and relates to the field of performance equipment engineering. The equipment comprises a driving mechanism, a translation guide mechanism, a translation stroke interlocking mechanism, a rotary reversing mechanism and a screen mechanism. According to the utility model, movement and reversing among a plurality of sets of screens are realized by adopting one set of drive, so that the cost is greatly saved; movement and reversing of different screens are achieved through the linkage effect between linkage scissor fork rod pieces in the translation stroke linkage mechanism and the limiting friction effect between a reversing groove and a crank in the rotation reversing mechanism, and in other words, the synchronism and precision of translation and rotation are guaranteed through a mechanical mechanism.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of performing arts equipment engineering, in particular to a translation rotation folding screen. BACKGROUND

[0002] Electronic screen is the commonly used equipment in modern stage performance place, which is generally composed of rear screen and side screen. The side screen greatly occupies the performance space when working, resulting in that the side stage of the performance space cannot be used. In order to avoid this problem, the side screen of the performance space is often designed to have the function of lifting and rotating, and it is necessary to rise to a certain height to adjust the size of the performance space when necessary. When the performance space needs the side screen, the lifting drive will lift the side screen to a certain height. When the performance space pursues better video effect, it is also necessary to rotate a certain angle to adjust the angle of the electronic screen. In order to facilitate lifting and rotating, the side screen used in the current performing arts equipment industry is generally composed of multiple sets of the same, and each set needs to have two sets of drives to realize the combined movement of the screen, which means that multiple sets of drive systems are needed for the control of the total side screen, and the necessary movement precision must be considered. This design brings certain difficulty to the control of position precision, and the cost is also relatively high.

[0003] In order to adapt to more application scenarios, the utility model designs a translation rotation folding screen which realizes the translation and rotation of multiple screens through one set of drive, and realizes higher position precision by mechanical limiting. UTILITY MODEL CONTENTS

[0004] The utility model aims at the problems existing in the prior art in the background art, and provides a translation rotation folding screen.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A translation rotation folding screen, comprising a driving mechanism, a translation guide mechanism, a translation stroke interlocking mechanism, a rotation reversing mechanism and a screen mechanism.

[0007] The driving mechanism comprises a motor reducer and a gear, and the gear is fixed on the output shaft of the motor reducer.

[0008] The translation guide mechanism comprises a translation rail, a linear guide rail and a rack, the linear guide rail is fixed on the translation rail, the rack is engaged with the gear, and a guide groove matched with the linear guide rail is formed on the back surface of the rack.

[0009] The translation stroke interlocking mechanism comprises a driving trolley, a fixed trolley, a translation trolley and an interlocking scissor fork, the driving trolley and the translation trolley are rollingly arranged on the translation rail, the fixed trolley is fixed on the translation rail, the driving trolley, the fixed trolley and the translation trolley are sequentially connected with the interlocking scissor fork from left to right, and the driving trolley is connected with the right end of the rack.

[0010] The rotating switching mechanism comprises a limiting support, a crank, and a special-shaped rotating shaft, the limiting support is fixed to the outside of the translation guide rail, an arc-shaped switching groove is arranged on the top inner side of the limiting support, the lower end of the crank is fixed to the upper part of the special-shaped rotating shaft installed on the translation trolley, the upper end of the crank is slidably contacted with the switching groove, and the middle part of the special-shaped rotating shaft is installed in the middle of the translation trolley through a thrust bearing.

[0011] The screen mechanism comprises a screen and a screen steel framework, the screen is installed on the front side of the screen steel framework, and the top of the screen steel framework is fixedly connected with the lower part of the special-shaped rotating shaft.

[0012] Further, the translation trolley is a plurality of translation trolleys, and each translation trolley is correspondingly provided with a rotating switching mechanism and a screen mechanism.

[0013] Preferably, the strokes between the switching grooves have a height difference, so as to ensure smooth switching between different screens.

[0014] Further, the driving trolley, the fixed trolley and the translation trolley all adopt the same structure, the translation trolley comprises a Π-shaped frame, a hole for installing a thrust bearing is formed in the middle of the Π-shaped frame, four load-bearing wheels are installed on the Π-shaped frame, the translation guide rail adopts a pair of parallel channel steels, and the load-bearing wheels are in rolling contact with the channel steel notches.

[0015] Further, the interlocking scissors fork is a scissors fork interlocking of a plurality of rod pieces, rotating hinge points are connected by pins, and a limiting wear-resistant bushing is arranged on the pin; the special-shaped rotating shaft serves as an intermediate rotating hinge point of the interlocking scissors fork.

[0016] Further, the special-shaped rotating shaft comprises an upper threaded segment, an upper square shaft segment, a cylindrical segment, a lower square shaft segment and a lower threaded segment arranged from top to bottom, the upper threaded segment is used for limiting the displacement of the crank shaft, the lower threaded segment is used for bearing the self-weight load of the screen mechanism, the upper square shaft segment is used for fixedly installing the crank, the cylindrical segment is used for installing the thrust bearing, and the lower square shaft segment is used for fixedly installing the screen steel framework. The special-shaped rotating shaft realizes the transmission of the torque on the crank to the screen steel framework.

[0017] Thanks to the above technical scheme, the advantageous technical effects of the utility model are as follows:

[0018] The utility model discloses a kind of translation rotating folding screens, mainly used for folding storage of performance space screen, adopts a set of drive to realize the movement and switching between multiple screens, greatly saves cost;Relies on the interlocking effect between interlocking scissors fork rod pieces in translation stroke interlocking mechanism and the limiting friction effect between switching groove and crank in rotating switching mechanism to realize the movement and switching of different screens, i.e. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1is a perspective view of the translation-rotation folding screen of the utility model;

[0020] Figure 2 is a perspective view of the translation stroke interlocking mechanism;

[0021] Figure 3 is Figure 2 is an enlarged view of A in the middle;

[0022] Figure 4 is a perspective view of the rotation reversing mechanism;

[0023] Figure 5 is a perspective view of the limiting support;

[0024] Figure 6 is a rear view of the rotation reversing mechanism;

[0025] Figure 7 is a perspective view of the special-shaped rotating shaft;

[0026] Figure 8 is a perspective view of the moving trolley;

[0027] Reference signs: 1-drive mechanism, 2-translation guide rail, 3-translation stroke interlocking mechanism, 4-screen, 5-rack, 6-driving trolley, 7-fixing trolley, 8-translation trolley, 9-limiting support, 10-reversing groove, 11-crank, 12-special-shaped rotating shaft, 13-screen steel skeleton, 14-thrust bearing, 15-Π-shaped trolley frame, 16-gear, 17-linear guide rail. DETAILED DESCRIPTION

[0028] In order to make the utility model's purpose, technical scheme and advantages more clearly, the following will be further detailed by preferred embodiments.

[0029] EMBODIMENT

[0030] Please refer to the attached Figures 1-8As shown, the translation-rotation folding screen provided by the embodiment comprises a driving mechanism 1, a translation guiding mechanism, a translation stroke interlocking mechanism 3, a rotation conversion mechanism and a screen mechanism; the driving mechanism 1 comprises a motor reducer, a gear 16, the gear 16 being fixed on the output shaft of the motor reducer; the translation guiding mechanism comprises a translation rail 2, a linear guide rail 17, a rack 5, the linear guide rail 17 being fixed on the translation rail 2, the rack 5 being engaged with the gear 16, and a guide groove being formed on the back of the rack 5 and being slidably matched with the linear guide rail 17; the translation stroke interlocking mechanism 3 comprises a driving trolley 6, a fixed trolley 7, a translation trolley 8 and an interlocking scissor fork, the driving trolley 6 and the translation trolley 8 are both rollingly arranged on the translation rail 2, the fixed trolley 7 is fixed on the translation rail 2, the driving trolley 6, the fixed trolley 7 and the translation trolley 8 are sequentially connected with the interlocking scissor fork from left to right, and the driving trolley 6 is connected with the right end of the rack 5; the rotation conversion mechanism comprises a limiting support 9, a crank 11 and a special-shaped rotating shaft 12, the limiting support 9 is fixed on the outer side of the translation rail 2, an arc-shaped conversion groove 10 is arranged on the top inner side of the limiting support 9, the lower end of the crank 11 is fixed on the upper part of the special-shaped rotating shaft 12 installed on the translation trolley 8, the upper end of the crank 11 is slidably contacted with the conversion groove 10, and the middle part of the special-shaped rotating shaft 12 is installed in the middle of the translation trolley 8 through a thrust bearing 14; the screen mechanism comprises a screen 4 and a screen steel framework 13, the screen 4 is installed on the front side of the screen steel framework 13, and the top of the screen steel framework 13 is fixedly connected with the lower part of the special-shaped rotating shaft 12.

[0031] Specifically, the translation trolleys 8 are multiple, each translation trolley 8 is correspondingly provided with a rotation conversion mechanism and a screen mechanism, the strokes between the multiple conversion grooves 10 have a height difference, so as to ensure smooth conversion between different screens 4.

[0032] Specifically, the driving trolley 6, the fixed trolley 7 and the translation trolley 8 all adopt the same structure, the translation trolley 8 comprises a Π-shaped frame 15, a hole for installing the thrust bearing 14 being formed in the middle of the Π-shaped frame 15, four bearing wheels are installed on the Π-shaped frame 15, the translation rail 2 adopts a pair of parallel channel steels, and the bearing wheels rollingly contact the channel steel notches.

[0033] Specifically, the interlocking scissor fork is a scissor fork interlocking of multiple rod pieces, the rotation hinge points are connected by pins, and a limiting anti-abrasion sleeve is arranged on the pin; meanwhile, the special-shaped rotating shaft 12 serves as the middle rotation hinge point of the interlocking scissor fork.

[0034] Specifically, the special-shaped rotating shaft 12 comprises an upper threaded segment, an upper square shaft segment, a cylindrical segment, a lower square shaft segment and a lower threaded segment arranged from top to bottom, the upper threaded segment is used for limiting the shaft displacement of the crank 11, the lower threaded segment is used for bearing the self-weight load of the screen mechanism, the upper square shaft segment is used for fixed installation of the crank 11, the cylindrical segment is used for installation of the thrust bearing 14, and the lower square shaft segment is used for fixed installation of the screen steel framework 13. The special-shaped rotating shaft 12 realizes the transmission of the torque on the crank 11 to the screen steel framework 13.

[0035] In the embodiment, the motor reducer and the translation guide rail 2 are fixed on the side wall of the performance space or other fixed facilities, the rotation of the gear 16 is converted into the translation movement of the driving trolley 6 and the translation trolley 8 on the translation guide rail 2 through the movement between the guide groove on the back of the rack 5 and the linear guide rail 17, and the curved reversing groove 10 realizes the rotation of 90 degrees of the screen steel framework 13 driven by the crank 11.

[0036] The working principle of the translation-rotation folding screen in the embodiment is as follows:

[0037] When the motor reducer drives the gear 16 to rotate clockwise, the rack 5 moves to the left, the distance between the fixed trolley 7 and the driving trolley 6 is increased, the distance between the fixed trolley 7 and different translation trolleys 8 is synchronously increased, and the screen steel framework 13 is extended; at the same time, the limiting support 9 is installed on the ideal position of the translation guide rail 2, when the screen steel framework 13 moves to the ideal position, the translation trolley 8 drives the crank 11 to enter the reversing groove 10, the reversing groove 10 ensures that the crank 11 realizes 90° turning, and further drives the screen steel framework 13 to realize 90° turning.

[0038] When the motor reducer drives the gear 16 to rotate counterclockwise, the crank 11 first enters the reversing groove 10, and first completes the rotation of the screen steel framework 13, further completes the opposite movement to the clockwise rotation of the gear 16, promotes the distance between the screen steel frameworks 13 to be reduced, and completes the storage and hiding.

[0039] The translation-rotation folding screen of the utility model is mainly used for folding and storing the screen of the performance space, and can also be used for dividing the performance space.

[0040] The above is the preferred embodiment of the utility model, which is used to explain the technical scheme of the utility model, and the person skilled in the art can make routine modification, equivalent replacement and improvement within the spirit and principle of the utility model.

Claims

1. A translational-rotational folding screen, characterized by: The drive mechanism, the translation guide mechanism, the translation stroke interlocking mechanism, the rotation conversion mechanism and the screen mechanism are included. The drive mechanism includes a motor reducer and a gear, and the gear is fixed on the output shaft of the motor reducer. The translation guide mechanism includes a translation guide rail, a linear guide rail and a rack, the linear guide rail is fixed on the translation guide rail, the rack is engaged with the gear, and a guide groove matched with the linear guide rail is formed on the back of the rack. The translation stroke interlocking mechanism includes a driving trolley, a fixed trolley, a translation trolley and an interlocking scissor fork, the driving trolley and the translation trolley are arranged on the translation guide rail in a rolling mode, the fixed trolley is fixed on the translation guide rail, the driving trolley, the fixed trolley and the translation trolley are sequentially connected with the interlocking scissor fork from left to right, and the driving trolley is connected with the right end of the rack. The rotation conversion mechanism includes a limiting support, a crank and a special-shaped rotating shaft, the limiting support is fixed on the outer side of the translation guide rail, an arc-shaped conversion groove is arranged on the top inner side of the limiting support, the lower end of the crank is fixed on the upper part of the special-shaped rotating shaft installed on the translation trolley, the upper end of the crank is slidably contacted with the conversion groove, and the middle part of the special-shaped rotating shaft is installed on the middle of the translation trolley through a thrust bearing. The screen mechanism includes a screen and a screen steel framework, the screen is installed on the front side of the screen steel framework, and the top of the screen steel framework is fixedly connected with the lower part of the special-shaped rotating shaft.

2. A translating-rotating folding screen according to claim 1, characterized in that: The translation trolleys are provided in plurality, and each translation trolley is provided with a rotation conversion mechanism and a screen mechanism.

3. A translating-rotating folding screen according to claim 2, wherein: The strokes between the conversion grooves have a height difference.

4. A translating-rotating folding screen according to claim 3, wherein: The driving trolley, the fixed trolley and the translation trolley adopt the same structure, the translation trolley includes a Π-shaped frame, a hole for installing a thrust bearing is formed in the middle of the Π-shaped frame, four bearing wheels are installed on the Π-shaped frame, the translation guide rail adopts a pair of parallel channel steels, and the bearing wheels are in rolling contact with the channel steel notches.

5. A translating-rotating folding screen according to claim 4, characterized in that: The interlocking scissor fork is a scissor fork interlocking of a plurality of rod pieces, the rotation hinge points are connected by pins, and a limiting wear-resistant sleeve is arranged on the pin.

6. A translating-rotating folding screen according to claim 5, wherein: The special-shaped rotating shaft serves as the middle rotation hinge point of the interlocking scissor fork.

7. A translating-rotating folding screen according to claim 6, wherein: The special-shaped rotating shaft includes an upper threaded segment, an upper square shaft segment, a cylindrical segment, a lower square shaft segment and a lower threaded segment arranged from top to bottom.

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