Storable projection ground screen device

Abstract

The utility model relates to the technical field of portable ground screens, in particular to a storable projection ground screen device. Comprising a box body, a rotatable winding shaft is arranged in the middle of the box body, a curtain is arranged on the winding shaft, clamping pieces are arranged at the two ends of the curtain, supporting rails are symmetrically arranged in the diagonal direction of the box body, a power piece is arranged on the box body and located below the supporting rails, the supporting rails are connected with the clamping pieces after being vertically unfolded, and the power piece is connected with the clamping pieces after being vertically unfolded. The power piece is used for driving the curtain to be unfolded upwards; the portable curtain unfolding device is convenient to carry, the curtain can be stored and prevented from being stained, meanwhile, the overall structure is ingenious, the curtain is rapidly unfolded and used under the driving of the power piece through connection of the clamping piece and the supporting track, and operation is easy and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of portable floor screens, in particular to a foldable projection floor screen device. Background Art

[0002] In projection, the screen, as the receiving part of the projector's projected image, is usually hung on the wall for use, but it cannot be carried, and the arrangement of the screen is rather cumbersome. When it needs to be used temporarily, the staff can only use ladders and other climbing tools to temporarily fix the screen on the wall as the receiving part of the projector, which is very inconvenient. At the same time, the screen is easily stained during carrying, affecting its actual use. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a foldable projection floor screen device for the above-mentioned technical deficiencies, which is convenient to carry and can store the screen to avoid contamination. At the same time, the overall structure is ingenious, connected to the support track through a clamping part, and the screen can be quickly unfolded and used under the drive of a power part, and the operation is simple and convenient.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model includes:

[0005] A box body is provided with a rotatable winding shaft in the middle of the box body, a curtain is provided on the winding shaft, clamping parts are provided at both ends of the curtain, support rails are symmetrically provided in the diagonal direction of the box body, and a power part is provided on the box body below the support rails. The support rails are connected to the clamping parts after being vertically unfolded, and the power part is used to drive the curtain to unfold upward.

[0006] Preferably, the support rail includes a slot frame and a slider; the slot frame is connected to the box body by a rotating shaft, a threaded shaft is provided inside the slot frame, and a docking plate is provided at the end of the threaded shaft; the middle part of the slider is threadedly connected to the threaded shaft, and both sides are in contact with the slot frame, and a card hole is provided on the slider.

[0007] Preferably, the power component includes an electric motor and an active disk; the electric motor is mounted on the housing and is key-connected to the active disk.

[0008] Preferably, the active disk is provided with a plurality of protrusions, and the docking disk is provided with a plurality of corresponding countersunk holes.

[0009] Preferably, the box body is provided with an insertion shaft connected to the slot frame.

[0010] Preferably, the clamping member comprises a support plate and a cantilever; the left side of the support plate is fixedly connected to the end corner of the curtain; the cantilever is connected to the support plate, and a slidable clamping plate is provided on the right side.

[0011] Preferably, a displacement groove is provided on the support plate; and a positioning block slidably connected to the displacement groove is provided on the cantilever.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] 1. When carrying, the curtain is rolled up inside the box and will not come into contact with the outside, thus avoiding stains and wrinkles, protecting the curtain itself and facilitating carrying and transportation;

[0014] 2. By unfolding the support track at 90 degrees and then fixing it with the clamping parts, the curtain can be quickly lifted and unfolded under the drive of the power parts. The operation is simple and convenient, and there is no need to perform high-altitude operations, thus shortening the construction time.

[0015] 3. The overall structural design is ingenious, meeting the screen layout requirements for temporary projection, and can be used as a home projection facility. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the overall structure of a retractable projection floor screen device in a retractable state;

[0017] Figure 2 Schematic diagram of the internal structure of the box;

[0018] Figure 3 This is a schematic diagram of the connection between the support rail and the box;

[0019] Figure 4 This is a schematic diagram of the support track in its unfolded state;

[0020] Figure 5 It is a schematic diagram of the transmission status of the power part and the supporting track;

[0021] Figure 6 It is a structural diagram of the active disk;

[0022] Figure 7 It is a schematic diagram of the structure of the card connector;

[0023] Figure 8 This is a schematic diagram of the bottom of the card connector.

[0024] In the figure: 1, box body; 2, clamping part; 3, supporting track; 4, power part; 101, winding shaft; 102, curtain; 201, supporting plate; 202, cantilever; 203, clamping plate; 204, displacement slot; 205, positioning block; 301, slot frame; 302, slider; 303, threaded shaft; 304, docking plate; 305, clamping hole; 306, countersunk hole; 307, plug-in shaft; 401, motor; 402, active disk; 403, protrusion. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0026] Specific implementation method 1: Combination Figure 1-8 As shown, a foldable projection floor screen device comprises: a box body 1, a rotatable reel 101 is provided in the middle of the box body 1, a screen 102 is provided on the reel 101, two ends of the screen 102 are provided with clamping parts 2, support rails 3 are symmetrically provided in the diagonal direction of the box body 1, a power part 4 is provided on the box body 1 below the support rail 3, the support rail 3 is connected to the clamping part 2 after being vertically unfolded, and the screen 102 is driven to unfold upward by the power part 4;

[0027] When in use, the end cover on the top of the box body 1 is opened, and then the two support rails 3 are turned 90 degrees to be in a vertical state and fixed, and then the clamping parts 2 at both ends of the curtain 102 are clamped with the support rails 3, and the bottom of the support rails 3 is connected to the power member 4, and then the power member 4 is started, and the curtain 102 is pulled upward to be unfolded and used. The operation is simple and convenient, the layout process is simplified, and working time is saved; when it needs to be stored, the power member 4 rotates in the opposite direction, and the control motor at the winding shaft 101 synchronously drives the winding shaft 101 to rotate, so as to realize the recovery of the curtain 102.

[0028] A preferred embodiment, in combination with Figure 4 and Figure 5 As shown, the support track 3 includes a slot frame 301 and a slider 302; the slot frame 301 is connected to the end corner of the box body 1 by a rotating shaft, a threaded shaft 303 is provided inside the slot frame 301, and a slidable docking plate 304 is provided at the bottom end of the threaded shaft 303; the middle part of the slider 302 is threadedly connected to the threaded shaft 303, and the two sides are in contact with the slot frame 301, and a clamping hole 305 is provided on the slider 302; when the power part 4 needs to be connected to the docking plate 304, the docking plate 304 is pushed downward to move a certain distance to realize contact transmission; wherein, the docking plate 304 has a spline groove structure inside, and the end of the threaded shaft 303 is a spline structure, which realizes sliding displacement and maintains torque transmission.

[0029] A preferred embodiment, in combination with Figure 5-6 As shown, the power member 4 includes a motor 401 and an active disk 402; the motor 401 is mounted on the housing 1 and is key-connected to the active disk 402. After the docking disk 304 is moved to contact the active disk 402, the friction resistance between the two is utilized to achieve power transmission.

[0030] In a preferred embodiment, in order to improve the stability of transmission, a plurality of protrusions 403 are provided on the active disk 402, and a plurality of corresponding countersunk holes 306 are provided on the docking disk 304. The protrusions 403 are inserted into the countersunk holes 306, thereby effectively ensuring the transmission of power and avoiding slipping. Among them, the protrusions 403 can adopt three cylindrical short columns, and the countersunk holes 306 are preferably nine.

[0031] A preferred embodiment, in combination with Figure 4-5 As shown, the box body 1 is provided with an insertion shaft 307 connected to the slot frame 301. After the slot frame 301 is vertically unfolded, the slot frame 301 is positioned by inserting the insertion shaft 307 into the corresponding hole on the slot frame 301, and when it needs to be reset, it can be directly pulled out, which is simple and convenient to operate.

[0032] A preferred embodiment, in combination with Figure 6-8 As shown, the clamping member 2 includes a support plate 201 and a cantilever 202; the left side of the support plate 201 is fixedly connected to the corner of the curtain 102; the cantilever 202 is welded and fixed to the support plate 201, and a clamping plate 203 that can slide longitudinally is provided on the right side, the support plate 201 on the curtain 102 is pulled to a suitable position, and then the clamping plate 203 is inserted into the clamping hole 305 and moved downward along the clamping hole 305 for a certain distance to achieve clamping and fixing, and the operation is simple, wherein the support plate 201 and the curtain 102 can be fixed by glue.

[0033] A preferred embodiment, in combination with Figure 8 As shown, two guide posts are symmetrically provided on the card plate 203, and a longitudinal groove connected to the guide post is provided on the right side of the cantilever 202. The guide post moves along the longitudinal groove, so that the card plate 203 can be moved a certain distance, which is convenient for insertion into the card hole 305 for connection. Specific implementation method 2

[0035] Combination Figure 8 As shown, in order to facilitate the adjustment of the position of the cantilever 202, a displacement groove 204 is provided on the support plate 201; a positioning block 205 is provided on the cantilever 202 and is slidably connected to the displacement groove 204. The sliding connection between the two replaces the welding fixation mentioned above, which facilitates the adjustment of the docking position of the clamping plate 203 and improves operability.

[0036] A preferred embodiment, in combination with Figure 7 As shown, two positioning screws are also provided on the left side of the cantilever 202. The positioning screws are rotated to contact the surface of the support plate 201 to achieve positioning and locking, thereby achieving the adjusted positioning.

[0037] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention.

Claims

1. A retractable projection floor screen device, characterized in that: include: A box body (1) is provided with a rotatable winding shaft (101) in the middle of the box body (1), a curtain (102) is provided on the winding shaft (101), and clamping parts (2) are provided at both ends of the curtain (102). The box body (1) is symmetrically provided with support rails (3) in the diagonal direction, and a power part (4) is provided on the box body (1) below the support rails (3). The support rails (3) are connected to the clamping parts (2) after being vertically unfolded, and the power part (4) is used to drive the curtain (102) to unfold upward.

2. The retractable projection floor screen device according to claim 1, characterized in that: The support rail (3) comprises a slot frame (301) and a slider (302); the slot frame (301) is connected to the box body (1) via a rotating shaft, a threaded shaft (303) is provided inside the slot frame (301), and a docking plate (304) is provided at the end of the threaded shaft (303); the middle part of the slider (302) is threadedly connected to the threaded shaft (303), and both sides are in contact with the slot frame (301), and a clamping hole (305) is provided on the slider (302).

3. The retractable projection floor screen device according to claim 2, characterized in that: The power component (4) comprises an electric motor (401) and an active disk (402); the electric motor (401) is mounted on the housing (1) and is key-connected to the active disk (402).

4. The retractable projection floor screen device according to claim 3, characterized in that: The active disk (402) is provided with a plurality of protrusions (403), and the docking disk (304) is provided with a plurality of corresponding countersunk holes (306).

5. The retractable projection floor screen device according to claim 2, characterized in that: The box body (1) is provided with an insertion shaft (307) connected to the slot frame (301).

6. The retractable projection floor screen device according to claim 2, characterized in that: The clamping member (2) comprises a support plate (201) and a cantilever (202); the left side of the support plate (201) is fixedly connected to the end corner of the curtain (102); the cantilever (202) is connected to the support plate (201), and a slidable clamping plate (203) is provided on the right side.

7. The retractable projection floor screen device according to claim 6, characterized in that: The support plate (201) is provided with a displacement groove (204); the cantilever (202) is provided with a positioning block (205) slidably connected to the displacement groove (204).

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