Hoisting type screen

Abstract

In the present invention, a single strip-shaped frame plate is installed behind each column of the display unit. The frame plate is fastened with buckles to ensure that each column of the display unit is flattened. By attaching buffer materials to the rear parts of both ends of the strip-shaped frame plate, when the screen is wound up, the light bulbs of the display unit are prevented from being crushed under the support action of the buffer materials. 【Solution means】The present invention has a reel support body that is connected to the ceiling via a frame or supported by a frame, a reel rotatably connected between the left and right side plates of the reel support body, a plurality of rows of display units connected to each other vertically, connected to the reel via a suspension steel wire, and wound up on the reel after being stored, and suspended under the reel via the suspension steel wire after being spread out. A screen, a drive assembly used to rotate the reel so that it is wound up on the reel after the screen is stored or suspended under the reel via the suspension steel wire after being spread out, and arranged on the back of each column of the display unit, and a plurality of sets of support and protection members used to protect the display unit when the screen is stored are provided. A winding-up type screen is disclosed.

Description

Technical Field

[0001] The present invention relates to the technical field of screen display, and particularly to a roll-up screen.

Background Art

[0002] In business premises such as large shopping arcades or conference rooms, it is often necessary to use a large screen to demonstrate products or documents. If a fixed screen is directly installed, it will undoubtedly occupy a lot of indoor space, so several retractable screens have started to appear on the market. This retractable screen, for example, is a roll-up screen that spreads out when in use and retracts when not in use, so as to reduce the occupation of indoor space. The roll-up screen can achieve a simple and reliable storage method of winding a flexible screen around a reel by a winding method. In the process of winding and storing an existing roll-up screen, the light bulbs of the screen are easily damaged, which affects the display effect.

Summary of the Invention

Problems to be Solved by the Invention

[0003] The present invention proposes a roll-up screen in order to solve the technical problems in the above-mentioned prior art.

Means for Solving the Problems

[0004] The technical solutions adopted by the present invention are as follows: A reel support connected to the ceiling via a frame or supported by a frame, A reel rotatably connected between the left and right side plates of the reel support, A screen having a plurality of rows of display units connected to each other vertically, connected to the reel via a suspension wire, wound around the reel after being stored, or suspended below the reel via the suspension wire after spreading out, A drive assembly that is attached to the spool support, connected to the spool, and used to rotate the spool so that after the screen is stored, it can be wound onto the spool or, after being extended, suspended below the spool via a suspension wire. To provide a winding type screen comprising a multi-set of support and protection members arranged on the back of each column of the display unit and used to protect the display unit when storing the screen.

[0005] The support and protection member includes a strip-shaped frame plate arranged on the back of each column of the display unit, and support and buffer materials arranged at both ends of each strip-shaped frame plate and extending beyond the position of the display unit. When storing the screen, one support and buffer material supports the strip-shaped frame plate of the other support and buffer material or supports the spool.

[0006] Furthermore, a rubber strip piece is retained between two adjacent strip-shaped frame plates.

[0007] Furthermore, a suspension groove is provided axially along the inner wall of the spool. The suspension groove is used to retain the suspension head of the suspension wire, and the suspension head is used to tie the suspension wire.

[0008] Furthermore, safety wires suspended on the spool are further provided on both sides of the back of the screen, and the deformation amount of the safety wire is less than that of the suspension wire.

[0009] Furthermore, a wiring groove is provided axially along the inner wall of the spool. A plurality of wiring outlets communicating with the wiring groove are provided on the outer surface of the spool, and both sides of the spool located at the wiring outlets are surrounded by rubber sleeves.

[0010] Specifically, the drive assembly has a motor attached to the right side plate of the spool support and located at one end of the spool, and the rotating shaft of the motor is inserted into the spool and connected to the spool.

[0011] Furthermore, the other end of the reel support is attached to the left side plate of the reel support, a bearing is provided on the left side plate, the inner ring of the bearing is fixedly connected to the left side plate, and the outer ring of the bearing is connected to the end of the reel via a connecting member.

[0012] The present invention further comprises a motor protection mechanism. The motor protection mechanism comprises a winding plate partition, a turning pulley pedestal, a spring fixing member, and a counterweight steel wire. The winding plate partition is arranged at both ends of the outer ring of the bearing, and the outer ring of the bearing forms a winding plate together with the two winding plate partitions. The turning pulley pedestal and the spring fixing member are attached to the framework. The counterweight steel wire turns through the turning pulley pedestal, one end of the counterweight steel wire is connected to the reel, and the other end is connected to the spring on the spring fixing member.

[0013] Sideward pulleys are provided on both sides of the screen, and upright sliding rails corresponding to the sideward pulleys are provided on the framework.

Advantages of the Invention

[0014] The present invention has the following beneficial technical effects compared with the prior art.

[0015] 1. A whole strip-shaped frame plate is installed behind each column of the display unit to ensure that each column of the display unit is flattened by buckling the frame plate. By attaching buffer materials to the rear parts of both ends of the strip-shaped frame plate, when the screen is wound up, the light bulbs of the display unit are prevented from being crushed under the supporting action of the buffer materials.

[0016] 2. By arranging the motor protection mechanism, the counterweight spring continuously changes the tensile force according to the tensile state of the steel wire until the torque change when the reel winds up the screen is well compensated, thereby enabling the motor to always operate with a low load torque, reducing the load on the motor, and making the motor operate more smoothly.

[0017] 3. The screen is wound up through an arrangement in which a plurality of rubber sleeves surround the winding shaft at intervals, and the flat cable is positioned in the gap between the rubber sleeves, and the flat cable is also wound up in the gap between the rubber sleeves, so as not to crush and damage the flat cable.

[0018] 4. The screen is wound up through an arrangement in which safety steel wires are fixed to both sides of the screen, and the safety steel wires are wound around, and the amount of deformation of the steel wires is made smaller than that of the connecting steel wires in the display unit of the screen, so as to bear the force when the safety steel wires are wound around and achieve the purpose of protecting the steel wires on the display unit.

[0019] 5. Two winding methods are provided to ensure that the winding shaft rotates normally and is not affected by the cable.

[0020] 6. Through an arrangement in which an up-and-down stroke position limit switch is built into the motor, the user can adjust the stroke. In addition, most of the motor is inside the winding shaft, the motor has a tail bearing at its tail, and when it rotates through an arrangement in which the rotating shaft is inserted into the winding shaft and directly connected to the winding shaft, there is only a rotational force without a tangential force on the winding shaft.

Brief Description of the Drawings

[0021] To more clearly explain the technical solutions of the embodiments of the present application and the technical solutions of the prior art, the following briefly describes the drawings necessary for the description of the embodiments and the prior art. Obviously, the drawings described below are some embodiments of this utility model, but those skilled in the art may also obtain other drawings according to these drawings without exerting ordinary creative ability.

[0022] FIG. 1 is a schematic diagram of the three-dimensional structure in an embodiment of the present invention. FIG. 2 is a schematic diagram of the three-dimensional structure showing one side of a part of the display unit in an embodiment of the present invention. FIG. 3 is a schematic diagram of the three-dimensional structure showing the other side of a part of the display unit in an embodiment of the present invention. Figure 4 is an end view of the scroll in the embodiment of the present invention. Figure 5 is a schematic diagram of the motor protection structure in the embodiment of the present invention. Figure 6 is a schematic structural diagram of a part of the member of the right side plate in the embodiment of the present invention. Figure 7 is a schematic structural diagram of a part of the member of the left side plate in an embodiment of the present invention. Figure 8 is a schematic structural diagram of a part of the member of the left side plate in another embodiment of the present invention. Figure 9 is a structural diagram of the end face when the screen is wound in the embodiment of the present invention.

Embodiments for Carrying out the Invention

[0023] Next, in order to make the technical problems, technical solutions, and beneficial effects to be solved by the present invention clearer, the present invention will be described in detail in connection with the drawings and embodiments. It should be understood that the specific embodiments described in this specification are only used to interpret the present invention without limiting the present invention.

[0024] Next, the principle and structure of the present invention will be described in detail in connection with the drawings and embodiments.

[0025] In view of the fact that the screen and the motor are not sufficiently protected by the existing hoisting type screen, the present invention proposes a hoisting type screen that can protect the screen and the motor and improve the safety performance of the screen.

[0026] As shown in FIGS. 1-9, the hoisting type screen according to the present invention includes a reel support 1, a frame 2, a reel 3, a screen 4, a drive assembly, and a support and protection member. The reel support 1 is supported by the frame 2, and the frame 2 is installed upright. The reel support 1 includes a left side plate 11 and a right side plate 12. The left side plate 11 and the right side plate 12 face each other on both sides of the top of the frame 2 and are attached at an interval. The reel 3 is rotatably connected between the left side plate 11 and the right side plate 12 of the reel support. Both ends of the reel 3 can rotate about its own axis through the left side plate 11 and the right side plate 12. The screen 4 includes a plurality of rows of display units 41 connected to each other vertically. Two adjacent display units 41 are rotatably connected to each other. On the back of the screen 4, a plurality of hanging steel wires 42 are provided at intervals horizontally. Each hanging steel wire 42 passes through a fixed pressing lower member (which is a pedestal with a vertical steel wire hole and is not marked and is blocked by the strip-shaped frame plate 61 and thus not visible in the figure) on the back of each display unit 41 from top to bottom. The top of the hanging steel wire 42 is connected to the reel 3. When it is necessary to store the screen 4, the drive assembly drives the reel 3 to rotate in one direction, and the hanging steel wire 42 is wound around the reel 3, and each row of the display units 41 of the screen 4 is successively wound around the reel 3 in conjunction. When it is necessary to expand the screen 4, the drive assembly moves the reel 3 to rotate in the other direction. After the screen 4 wound around the reel 3 expands downward, the screen 4 is suspended directly below the reel 3 via the hanging steel wire 42. By driving the reel 3 to rotate using a drive device arranged on the right side plate 12, the screen 4 is wound around the reel 3 or expands and is suspended below the reel 3. The support and protection member is arranged on the back of each row of the display units 41 and is used to protect the lamp bulbs of the display units when storing the screen, and at the same time makes the display units flat horizontally.

[0027] As shown in FIGS. 2, 3, and 9, each set of the support and protection members includes a strip-shaped frame plate 61 and two support and buffer members 62. By fitting the strip-shaped frame plate 61 horizontally on the back of the display units 41 arranged in a row, the display units 41 in the same row are kept flat to ensure the display effect. By making the length of the strip-shaped frame plate 61 larger than the length of the display units 41 arranged in a row, both ends of the strip-shaped frame plate 61 extend beyond the display units 41 by one stage, and the two support and buffer members 62 are respectively installed on the backs of both ends of the strip-shaped frame plate 61 to enable the height of the support and buffer members 62 to be larger than the thickness of the display units 41. When the screen 4 is retracted and wound up, the support and buffer members 62 on the backs of the strip-shaped frame plates 61 arranged in several rows located above are pressed against the winding shaft 3, and the support and buffer members on the backs of the remaining strip-shaped frame plates 61 are stretched against the fronts of the strip-shaped frame plates 61 located at both ends. As a result, the screen 4 protects the lamp bulbs on the back of the display units 41 without being compressed, improving the reliability of the retractable screen.

[0028] In one implementation state, a rubber strip piece 64 stays between two adjacent strip-shaped frame plates 61, thereby blocking the gap between the strip-shaped frame plates 61 and the display units 41 and preventing light transmission. Moreover, the rubber strip piece 64 serves as a buffer effect when the screen 4 is wound up, and in addition, it prevents the two adjacent strip-shaped frame plates 61 from directly colliding and causing compressive deformation.

[0029] In one implementation state, as shown in FIG. 4, a suspension groove 31 is provided along the axial direction on the circumferential surface of the winding shaft 3, and the suspension groove 31 is opened from the end face of one end of the winding shaft 3 and continues to the other end of the winding shaft 3. The top end of the suspension steel wire 42 is connected to a square suspension head. When installing, the suspension head slides into the inside of the suspension groove 31 from the end of the suspension groove 31, and the suspension steel wire 42 extends out from the notch of the suspension groove 31, enabling the suspension heads of a plurality of vertically spaced suspension steel wires 42 to be installed in one horizontal suspension groove 31.

[0030] In one implementation state, as shown in FIG. 2, two safety steel wires 43 are installed in front of the screen 4. The two safety steel wires 43 are arranged on both sides of the screen 4, and the top ends of the safety steel wires 43 are directly fixed to the winding shaft 3 (the safety steel wire on the left side in the figure is not shown). The fixing pressure lower members of the safety steel wires 43 are arranged on the fronts of both ends of the strip-shaped frame plate 61, and when the winding shaft 4 is wound, the support buffer material presses against the fixing pressure lower members of the safety steel wires 43. When the winding shaft 4 is wound and the safety steel wire 43 is wound at the same time, the deformation amount of the safety steel wire 43 is smaller than the deformation amount of the steel wire in the display unit 41 of the screen 4. Thereby, the force when the safety steel wire 43 is wound is borne, and the purpose of protecting the steel wire on the display unit is achieved.

[0031] In one implementation state, in the winding shaft 3, a wiring groove 32 is provided along the axial direction, and a plurality of wiring outlets are provided on the outer surface of the winding shaft 3. The wiring outlets are used to connect the flat cable 94 of the screen 4 and can be led out from the wiring outlets. Moreover, a plurality of rubber sleeves 33 surround the outer surface of the winding shaft 3, and the rubber sleeves 33 are located on both sides of the wiring outlets. When the screen 4 is wound, when the flat cable connecting the screen 4 is wound between the two rubber sleeves 33, the loss of the cable caused by the screen crushing the cable is avoided.

[0032] In a specific embodiment, as shown in FIGS. 5-7, the winding shaft support 1 includes a left side plate 11 and a right side plate 12. A drive assembly is attached on the right side plate 12, and the drive assembly is connected to the right end of the winding shaft 3 to move the winding shaft 3 to rotate. A bearing 71 is provided on the left side plate 11. The inner ring of the bearing is fixed to the left side plate 11, and the outer ring of the bearing is fixed and connected to the left end of the winding shaft 3 through a connecting member, so that the winding shaft 3 is rotatably connected between the left side plate 11 and the right side plate 12.

[0033] As shown in FIG. 6, the drive assembly includes a motor 51 and a transmission sleeve 52. The motor 51 is arranged on the right side plate 12, and the rotating shaft 511 of the motor 51 is located within the winding shaft 3 and is coaxial with the winding shaft. The transmission sleeve 52 surrounds the outer surface of the rotating shaft 511, and by arranging a connecting key between the rotating shaft 511 and the transmission sleeve 52, the transmission sleeve 52 is made to rotate together with the rotating shaft 511. On the outer peripheral surface of the transmission sleeve 52, female screw connection posts 53 are vertically provided, and on the inner wall of the winding shaft 3, a position limiting groove 34 is provided along the axial direction (Figure 4). When installing the motor 51, the female screw connection posts 53 can slide along the limiting groove 34, and then connect with the female screw connection posts 53 in the limiting groove 34 through a screw hole or a through hole on the outer surface of the winding shaft 3 via a screw, so that the transmission sleeve 52 is fixedly connected to the winding shaft 3. A partial cylindrical tail of the motor 51 is also located within the winding shaft 3, and in addition, a tail bearing 54 is attached. The outer ring of the tail bearing 54 is fixedly connected to the winding shaft 3 via a screw to ensure that there is only rotational torque on the rotating shaft of the motor 51 without radial shear force, thereby protecting the rotating shaft of the motor 51.

[0034] The up and down stroke position limiting switch provided at the portion where the motor 51 is located outside the winding shaft 3 is used to adjust the limiting stroke according to the length of the screen. The stroke position limiting switch is a kind of switch in the prior art and is used to operate the motor to rotate forward, reverse, and stop.

[0035] As shown in Figure 7, a bearing 71 is provided on the left side plate 11. The inner ring of the bearing is fixed to the left side plate 11, and the outer ring of the bearing is fixedly connected to the left end of the winding shaft 3 via a connecting member, so that the winding shaft 3 is rotatably connected between the left side plate 11 and the right side plate 12. The connecting member is a hook claw 72. The hook claw is fixed to the side surface of the outer ring of the bearing. The four clamping portions of the hook claw 72 are perpendicular to the plane of the left side plate 11, and in addition, they are inserted into the winding shaft 3 along the axial direction of the winding shaft 3 and are attached to the inner wall of the winding shaft 3. Then, by fixing the winding shaft 3 with the clamping portion of the hook claw 72 with a screw, the end of the winding shaft 3 is fixed to the hook claw. That is, by fixedly connecting the end of the winding shaft 3 to the outer ring of the bearing, the winding shaft 3 can rotate normally.

[0036] As shown in FIGS. 6-7, it further includes a motor protection mechanism. The motor protection mechanism includes winding disc partition plates 81 arranged at intervals on the outer ring of the bearing (the two winding disc partition plates 81 may be specifically attached to both sides of the outer ring of the bearing 71, that is, the two winding disc partition plates 81 are arranged annularly), a steering pulley pedestal 85 and a spring fixing member 83 attached to the frame 2, a spring 84, and a counterweight steel wire 82. The winding disc partition plate 81 and the outer ring of the bearing 71 are arranged along the circumference to form a winding disc having a winding disc groove, and one end of the counterweight steel wire 82 is wound into the winding disc groove. Specifically, one end of the counterweight steel wire 82 is fixed to the hook claw 72, enters the winding disc groove from a through hole provided in advance in the winding disc partition plate 81, then extends from the winding disc groove, turns through the pulley of the steering pulley pedestal 85, and is connected to the spring 84 in the spring fixing member 83. After the screen 4 is retracted, the spring 84 is in a normal state. When the screen 4 expands, the motor 51 rotates to drive the winding shaft 3 to rotate, and then the winding shaft 3 drives the winding disc to rotate, so that the counterweight steel wire 82 is wound into the winding disc until the screen 4 completely descends. At this time, the spring 84 is in a deployed state. When it is necessary to retract the screen 4, the motor 51 rotates to drive the winding shaft 3 to rotate, and the transfer steel wire is synchronously released from the winding disc, so that the spring changes from a tension state to a normal state. The spring continuously changes the tensile force according to the tensile state of the counterweight steel wire until it well compensates for the torque change when the winding shaft 3 winds up the screen 4, thereby enabling the motor 51 to always operate with a low load torque, reducing the load on the motor 51, and enabling the motor 51 to operate more smoothly.

[0037] In a specific example state, the power line is arranged according to the following two installation forms.

[0038] As shown in FIG. 7, in the first embodiment, a power line 91 wound inside the reel 3 is disposed. In addition, a round bar 92 inserted perpendicularly to the reel 3 through a bearing is fixed to the left side plate 11, and the wound power line 91 is wound around the round bar 92. A claw plate 93 is provided at the other end of the round bar, and the claw plate 93 is fixedly connected to the inner wall of the reel 3. A hole through which the round bar 92 passes is provided at the center of the claw plate 93. The connection end of the power line 91 passes through holes provided in advance in the bearing and the left side plate 11 and is fixed to the outside of the left side plate 11, and the other end of the power line 91 is connected to a power panel disposed inside the reel 3. The clamping portion of the claw plate 93 can rotate the vertical portion of the power line when the reel 3 rotates to rotate the power line, and the wound power line can automatically expand and contract when the reel 3 rotates, so as not to affect the fixing of the connection end of the power line located on the left side plate 11.

[0039] As shown in FIG. 8, in the first embodiment, a winding reel 101 is provided on the outer surface of the left side plate 11, and in addition, the round bar 92 passes through the center of the winding reel 101 and is fixedly connected to the winding reel 101. Furthermore, the round bar is inserted into the reel 3 through the left side plate 11 and fixedly connected to a claw plate, and the claw plate is fixedly connected to the inner wall of the reel 3. When the reel 3 rotates, the winding reel located on the outer surface of the left side plate 11 can be rotated under the action of the connection by the round bar 92, so that the power line is drawn out from the reel 3 along the round bar and fixed to the winding reel. A disk cover 104 for storing the winding reel inside is also provided on the outer surface of the left side plate 11. An external connection disk is placed inside the disk cover 104, and the end located at the center is connected to the power line (the external connection and the power line substantially use the same continuous cable). When the reel 3 rotates, the external connection cable rotates and expands and contracts like a spring so that the cable is not broken during rotation.

[0040] As shown in FIGS. 1 and 2, in a specific embodiment, side pulleys 63 are disposed on both sides of the screen 4. Specifically, side pulleys 63 are provided on both sides of each display unit 41, and the frame 2 is provided with upright sliding rails corresponding to the side pulleys. When the screen 4 is deployed and stored, the side pulleys roll along the upright sliding rails to improve the stability of the screen 4 during deployment and storage.

[0041] It should be noted that the technical terms used in this specification are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. For example, unless otherwise specified in the context, the singular forms used in this specification are intended to include the plural forms, and when the technical terms "comprising" and / or "including" are used in this specification, it should also be understood that the presence of features, steps, operations, devices, assemblies, and / or combinations thereof is indicated.

[0042] Unless specifically described otherwise, the relative arrangements of the members and steps described in these examples, the mathematical formulas and numerical values do not limit the scope of the present invention. Also, for the convenience of explanation, it should be understood that the sizes of the respective parts shown in the drawings are not drawn based on the actual proportional relationships. Although detailed consideration of technologies, methods, and devices known to those skilled in the art may be omitted in some cases, when appropriate, the said technologies, methods, and devices should be regarded as part of the authorized specification. In all the examples shown and considered in this specification, all specific values are not limiting and should be interpreted as exemplary. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters indicate similar items in the following drawings, so if an item is defined in one drawing, there is no need to further consider it in subsequent drawings.

[0043] In the description of the present invention, the orientation or positional relationship indicated by orientation terms such as "front, back, top, bottom, left, right", "lateral direction, longitudinal direction, vertical, horizontal", and "top, bottom" is generally the orientation or positional relationship shown based on the drawings, and the purpose is only to easily describe and simplify the description of the present invention. On the contrary, unless otherwise explained, these orientation terms do not explicitly or implicitly indicate that the devices or elements shown must have a specific orientation or be configured and operated in a specific orientation, so it should not be understood that the protection scope of the present invention is limited. It should be understood that the orientation terms "inside, outside" refer to the inside and outside with respect to the contour of each member itself.

[0044] For convenience of description, in this specification, for example, in order to describe the spatial positional relationship between a device or feature shown in a figure and another device or feature, spatial relative technical terms such as, for example, "above...", "over...", "upper surface of...", "above" and the like may be used. It should be understood that the spatial relative technical terms are intended to include different orientations in the use or operation of the device in addition to the orientation shown in the figure. For example, when the device in the drawing is arranged oppositely, a device described as "above another device or structure" or "on another device or structure" will then be positioned as "below another device or structure" or "under another device or structure". Therefore, the exemplary technical term "above..." can include two orientations, namely "above..." and "below...". This device can also be positioned in other different ways (rotated by 90 degrees or positioned in other orientations), and the spatial relative descriptions used here are interpreted correspondingly.

[0045] It should be noted that the purpose of using terms such as "first", "second", etc. to limit components is only to make it easier to distinguish the corresponding components. Unless otherwise specified, the above terms have no special meaning, and it should not be understood that they limit the protection scope of the present invention.

[0046] The above content is only a preferred implementation state of the present invention and does not limit it. The present invention may be subject to various changes and modifications by those skilled in the art. Any changes, equivalent replacements, improvements, etc. made within the scope of the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Explanation of Reference Signs

[0047] 1 - Scroll support; 11 - Left side plate; 12 - Right side plate; 2 - Frame assembly; 3 - Scroll; 31 - Hanging groove; 32 - Wiring groove; 33 - Rubber sleeve; 34 - Position limiting groove; 4 - Screen; 41 - Display unit; 42 - Hanging steel wire; 43 - Safety steel wire; 51 - Motor; 52 - Transmission sleeve; 53 - Female screw connection post; 54 - Tail bearing; 511 - Rotating shaft; 61 - Strip-shaped frame plate; 62 - Support buffer; 63 - Lateral pulley; 64 - Rubber strip; 71 - Bearing; 72 - Hook; 81 - Reel partition plate; 82 - Counterweight steel wire; 83 - Spring fixing member; 84 - Spring; 85 - Steering pulley pedestal; 91 - Power cord; 92 - Round bar; 93 - Hook plate; 94 - Flat cable; 101 - Take-up reel; 104 - Reel cover.

Claims

1. A reel support body that is connected to the ceiling via a framework or supported by a framework, and a reel rotatably connected between a left side plate and a right side plate of the reel support body, and a screen having a plurality of rows of display units connected to each other vertically, connected to the reel via a suspension wire, wound around the reel after being stored therein, or suspended below the reel via the suspension wire after being spread out, and a drive assembly attached to the reel support body and connected to the reel, used to rotate the reel so that the screen is wound around the reel after being stored therein or suspended below the reel via the suspension wire after being spread out, and a plurality of sets of support and protection members disposed on the back of each row of the display units, used to protect the display units when storing the screen. A winding-up type screen, characterized in that.

2. The support and protection member includes a strip-shaped frame plate disposed on the back of each row of the display units, and support and buffer members disposed at both ends of each strip-shaped frame plate and extending beyond the position of the display units. When storing the screen, one support and buffer member supports the strip-shaped frame plate of the other support and buffer member or supports the reel. The winding-up type screen according to claim 1, characterized in that.

3. The winding-up type screen according to claim 2, characterized in that a rubber strip piece is retained between two adjacent strip-shaped frame plates.

4. A suspension groove is provided along the axial direction on the inner wall of the reel, the suspension groove is used to retain the suspension head of the suspension wire, and the suspension head is used to tie the suspension wire. The winding-up type screen according to claim 1, characterized in that.

5. Safety wires suspended on the reel are further provided on both sides of the back of the screen, and the deformation amount of the safety wires is less than that of the suspension wires. The winding-up type screen according to claim 1, characterized in that.

6. A wiring groove is provided along the axial direction on the inner wall of the reel, a plurality of wiring outlets communicating with the wiring groove are provided on the outer surface of the reel, and both sides of the reel at the position of the wiring outlets are surrounded by rubber sleeves. The winding-up type screen according to claim 1, characterized in that.

7. The drive assembly has a motor attached to the right side plate of the reel support and located at one end of the reel, and the rotating shaft of the motor is inserted into the reel and connected to the reel. The hoisting screen according to claim 1, characterized in that.

8. The other end of the reel support is attached to the left side plate of the reel support, a bearing is provided on the left side plate, the inner ring of the bearing is fixedly connected to the left side plate, and the outer ring of the bearing is connected to the end of the reel through a connecting member. The hoisting screen according to claim 1, characterized in that.

9. It further comprises a motor protection mechanism. The motor protection mechanism comprises a winding disk partition plate, a turning pulley pedestal, a spring fixing member and a counterweight steel wire. The winding disk partition plates are arranged at both ends of the outer ring of the bearing, and the outer ring of the bearing forms a winding disk together with the two winding disk partition plates. The turning pulley pedestal and the spring fixing member are attached to the framework. The counterweight steel wire turns through the turning pulley pedestal, one end of the counterweight steel wire is connected to the reel, and the other end is connected to a spring on the spring fixing member. The hoisting screen according to claim 8, characterized in that.

10. Side pulleys are provided on both sides of the screen, and upright sliding rails corresponding to the side pulleys are provided on the framework. The hoisting screen according to claim 1, characterized in that.

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