Portable mobile curtain for exhibition

Abstract

The utility model discloses a portable mobile curtain for an exhibition, and relates to the technical field of projection curtains. The projection device comprises a storage box, the inner wall of the storage box is rotatably connected with a rotating shaft, the surface of the rotating shaft is fixedly sleeved with a sleeve, the inner wall of the sleeve is movably connected with a supporting rod in an inserted mode, the surface of the sleeve is provided with a telescopic control assembly used for controlling the supporting rod to move, and the front side of the inner wall of the storage box is fixedly connected with a projection curtain. A clamping and limiting assembly for limiting the top end of the projection curtain is arranged at the top end of the supporting rod, a positioning mechanism for controlling the sleeve to be kept in a vertical state is arranged on the front face of the storage box, the telescopic control assembly comprises a worm, the worm is rotationally connected with the inner wall of the sleeve, a rotary knob is fixedly connected to the end of the worm, and the rotary knob is fixedly connected with the support rod. During use, the effect of quickly folding and storing the curtain and accessory structures thereof is achieved, the size of the equipment is effectively reduced, and the equipment is more convenient to carry.

Description

Technical Field

[0001] The utility model relates to the technical field of projection screens, in particular to a portable mobile screen for exhibitions. Background Art

[0002] In order to improve the display effect during the exhibition activities, projection is mostly used for display. When projection is used, a projector and a screen are required.

[0003] The Chinese patent document with the authorization announcement number CN219533608U discloses a portable mobile curtain for exhibitions, including a box body, a storage compartment is fixedly opened at the middle upper part of the box body, a first rotating shaft is rotatably connected between the inner walls on both sides of the storage compartment, a curtain roll is rotatably arranged in the storage compartment, a driving motor is fixedly arranged at the middle of the upper part of the outer wall of one side of the box body, and gear grooves are fixedly opened at the upper part of both sides of the interior of the box body. With respect to the above technical solution, there are the following defects in use: after the curtain is used, the threaded rod part of the prior art cannot be folded and stored, resulting in a large overall space occupation, which is inconvenient to carry and transfer.

[0004] For this reason, a portable mobile curtain for exhibitions is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the problems mentioned in the above background technology. The utility model provides a portable movable curtain for exhibitions.

[0006] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0007] A portable movable screen for exhibitions comprises a storage box, the inner wall of the storage box is rotatably connected to a rotating shaft, the surface of the rotating shaft is fixedly sleeved with a sleeve, the inner wall of the sleeve is movably plugged with a support rod, the surface of the sleeve is provided with a telescopic control component for controlling the movement of the support rod, a projection screen is fixedly connected to the front side of the inner wall of the storage box, the top of the support rod is provided with a clamping limit component for limiting the top of the projection screen, and the front of the storage box is provided with a positioning mechanism for controlling the sleeve to maintain a vertical state.

[0008] Furthermore, the telescopic control assembly includes a worm, and the worm is rotatably connected to the inner wall of the sleeve, the end of the worm is fixedly connected to a knob, the inner wall of the sleeve is rotatably connected to a threaded column, and the threaded column is threadedly connected to the support rod, the surface of the threaded column is fixedly sleeved with a worm wheel, and the worm wheel is meshed with the worm.

[0009] Furthermore, the clamping and limiting assembly includes a clamping seat, and the clamping seat is fixedly connected to the top end of the support rod, the end of the projection screen is fixedly connected to a fixing rod, both ends of the fixing rod are fixedly connected to a limiting block, and the surface of the limiting block is movably clamped to the inner wall of the clamping seat.

[0010] Furthermore, the positioning mechanism includes an insertion rod, and the insertion rod is movably connected to the front side of the storage box, the front end of the insertion rod is fixedly connected with a shift block, the back side of the shift block and the front side of the storage box are fixedly connected with a spring, the front side of the sleeve is provided with a recessed hole, and the inner wall of the recessed hole is movably connected to the end of the insertion rod.

[0011] Furthermore, a movable cover is hingedly connected to the top rear side of the storage box, and a lock for locking with the storage box is arranged on the surface of the movable cover.

[0012] Furthermore, rollers are arranged at the four corners of the bottom surface of the storage box, and the rollers are universal wheels with a self-locking structure.

[0013] The beneficial effects of the utility model are as follows:

[0014] Projection display can be carried out through the projection screen, so as to play videos containing product information. When the projection screen is not in use, the limit on the top of the projection screen is released through the clamping limit assembly, and the projection screen is rolled up. The support rod is then controlled to move downward through the telescopic control assembly, so that the support rod is retracted into the inside of the sleeve, and the limit on the sleeve is released through the positioning mechanism, and the sleeve and the rotating shaft are rotated to a horizontal state, so that the sleeve is recovered into the storage box, and the end of the projection screen and the clamping limit assembly are placed together in the storage box to complete the storage. During use, the screen and its auxiliary structures can be quickly folded and stored, and the volume of the equipment is effectively reduced, making it more convenient to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a side sectional view of the structure of the utility model;

[0017] Figure 3 This is a top view of the clamping and limiting component structure of the utility model;

[0018] Figure 4 It is a side sectional view of the casing structure of the utility model;

[0019] Figure 5 It is a structural side view of the positioning mechanism of the utility model;

[0020] Figure numerals: 1. storage box; 2. rotating shaft; 3. sleeve; 4. support rod; 5. telescopic control assembly; 501. worm; 502. knob; 503. threaded column; 504. worm gear; 6. projection screen; 7. clamping limit assembly; 701. clamping seat; 702. limit block; 703. fixing rod; 8. positioning mechanism; 801. insertion rod; 802. dial block; 803. spring; 9. movable cover; 10. roller. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0024] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0025] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] like Figures 1 to 5As shown, a portable movable screen for exhibitions comprises a storage box 1, the inner wall of the storage box 1 is rotatably connected with a rotating shaft 2, the surface of the rotating shaft 2 is fixedly sleeved with a sleeve 3, the inner wall of the sleeve 3 is movably inserted with a support rod 4, the surface of the sleeve 3 is provided with a telescopic control component 5 for controlling the movement of the support rod 4, a projection screen 6 is fixedly connected to the front side of the inner wall of the storage box 1, a clamping limit component 7 for limiting the top of the projection screen 6 is provided at the top of the support rod 4, and a positioning mechanism 8 for controlling the sleeve 3 to maintain a vertical state is provided at the front of the storage box 1. More specifically, projection display can be performed through the projection screen 6, so as to play a video containing product information. When the projection screen 6 is not in use, the limit on the top of the projection screen 6 is released by the clamping limit assembly 7, and the projection screen 6 is wound up, and then the support rod 4 is controlled to move downward by the telescopic control assembly 5, so that the support rod 4 is retracted into the interior of the sleeve 3, and then the limit on the sleeve 3 is released by the positioning mechanism 8, and the sleeve 3 and the rotating shaft 2 are rotated to rotate the sleeve 3 to a horizontal state, so that the sleeve 3 is recovered into the interior of the storage box 1, and then the end of the projection screen 6 and the clamping limit assembly 7 are placed together in the interior of the storage box 1 to complete the storage.

[0027] The telescopic control assembly 5 includes a worm 501, and the worm 501 is rotatably connected to the inner wall of the sleeve 3, a knob 502 is fixedly connected to the end of the worm 501, a threaded column 503 is rotatably connected to the inner wall of the sleeve 3, and the threaded column 503 is threadedly connected to the support rod 4, a worm wheel 504 is fixedly sleeved on the surface of the threaded column 503, and the worm wheel 504 is meshed with the worm 501. It should be noted that by rotating the knob 502, the worm 501 is driven to rotate, and then the worm wheel 504 meshed with it is driven to rotate, which can drive the threaded column 503 to rotate, and drive the support rod 4 to slide along the inner wall of the sleeve 3 under the action of the thread.

[0028] The clamping and limiting assembly 7 includes a clamping seat 701, and the clamping seat 701 is fixedly connected to the top of the support rod 4, and the end of the projection screen 6 is fixedly connected to a fixing rod 703, and both ends of the fixing rod 703 are fixedly connected to the limiting block 702, and the surface of the limiting block 702 is movably clamped with the inner wall of the clamping seat 701. More specifically, the fixing rod 703 is pulled upward to drive the limiting block 702 to move upward and detach from the inner wall of the clamping seat 701, so that the limiting of the limiting block 702 can be released, and then the fixing rod 703 is rotated to roll the projection screen 6 onto the surface of the fixing rod 703.

[0029] The positioning mechanism 8 includes an insertion rod 801, and the insertion rod 801 is movably plugged with the front of the storage box 1, a shift block 802 is fixedly connected to the front end of the insertion rod 801, a spring 803 is fixedly connected between the back of the shift block 802 and the front of the storage box 1, and a concave hole is opened on the front of the sleeve 3, and the inner wall of the concave hole is movably plugged with the end of the insertion rod 801. It should be noted that by pulling the shift block 802, the insertion rod 801 is driven to move and the spring 803 is stretched, so that the end of the insertion rod 801 is separated from the inner wall of the concave hole, and the limit on the sleeve 3 can be released.

[0030] A movable cover 9 is hinged at the rear side of the top of the storage box 1, and a lock for locking with the storage box 1 is provided on the surface of the movable cover 9. More specifically, when the projection screen 6 is stored, the movable cover 9 can be rotated to close the top of the storage box 1 to prevent external dust from entering, thereby protecting the projection screen 6 and the internal structure of the storage box 1, and the movable cover 9 is locked by the lock to prevent it from being accidentally opened.

[0031] Rollers 10 are provided at the four corners of the bottom surface of the storage box 1, and the rollers 10 are universal wheels with a self-locking structure. It should be noted that by providing the rollers 10, it is convenient to move the storage box 1 quickly. When the storage box 1 is placed, the rollers 10 can be self-locked, making the storage box 1 more stable.

[0032] In summary: projection display can be performed through the projection screen 6, so as to play a video containing product information. When the projection screen 6 is not in use, the limit on the top of the projection screen 6 is released by the clamping limit assembly 7, and the projection screen 6 is rolled up, and then the support rod 4 is controlled to move downward by the telescopic control assembly 5, so that the support rod 4 is retracted into the inside of the sleeve 3, and then the limit on the sleeve 3 is released by the positioning mechanism 8, and the sleeve 3 and the rotating shaft 2 are rotated to rotate the sleeve 3 to a horizontal state, so that the sleeve 3 is recovered into the inside of the storage box 1, and then the end of the projection screen 6 and the clamping limit assembly 7 are placed together in the storage box 1 to complete the storage. During use, the effect of quickly folding and storing the screen and its auxiliary structures is achieved, and the volume of the equipment is effectively reduced, making it more convenient to carry and transport.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A portable mobile curtain for exhibitions, characterized in that: The invention comprises a storage box (1), the inner wall of the storage box (1) is rotatably connected to a rotating shaft (2), the surface of the rotating shaft (2) is fixedly sleeved with a sleeve (3), the inner wall of the sleeve (3) is movably inserted with a support rod (4), the surface of the sleeve (3) is provided with a telescopic control component (5) for controlling the movement of the support rod (4), the front side of the inner wall of the storage box (1) is fixedly connected to a projection screen (6), the top end of the support rod (4) is provided with a clamping limit component (7) for limiting the top end of the projection screen (6), and the front side of the storage box (1) is provided with a positioning mechanism (8) for controlling the sleeve (3) to maintain a vertical state.

2. A portable movable curtain for exhibitions according to claim 1, characterized in that: The telescopic control assembly (5) comprises a worm (501), and the worm (501) is rotatably connected to the inner wall of the sleeve (3), the end of the worm (501) is fixedly connected to a knob (502), the inner wall of the sleeve (3) is rotatably connected to a threaded column (503), and the threaded column (503) is threadedly connected to the support rod (4), and a worm wheel (504) is fixedly sleeved on the surface of the threaded column (503), and the worm wheel (504) is meshed with the worm (501).

3. A portable movable curtain for exhibitions according to claim 2, characterized in that: The clamping and limiting assembly (7) comprises a clamping seat (701), and the clamping seat (701) is fixedly connected to the top end of the support rod (4), and the end of the projection screen (6) is fixedly connected to a fixing rod (703), and both ends of the fixing rod (703) are fixedly connected to a limiting block (702), and the surface of the limiting block (702) is movably clamped to the inner wall of the clamping seat (701).

4. A portable movable curtain for exhibitions according to claim 3, characterized in that: The positioning mechanism (8) comprises an insertion rod (801), and the insertion rod (801) is movably plugged into the front side of the storage box (1); a shift block (802) is fixedly connected to the front end of the insertion rod (801); a spring (803) is fixedly connected between the back side of the shift block (802) and the front side of the storage box (1); a concave hole is formed on the front side of the sleeve (3), and the inner wall of the concave hole is movably plugged into the end of the insertion rod (801).

5. The portable movable curtain for exhibition according to claim 1, characterized in that: A movable cover (9) is hingedly connected to the rear side of the top of the storage box (1), and a lock for locking the movable cover (9) with the storage box (1) is provided on the surface of the movable cover (9).

6. The portable movable curtain for exhibition according to claim 1, characterized in that: Rollers (10) are arranged at the four corners of the bottom surface of the storage box (1), and the rollers (10) are universal wheels with a self-locking structure.

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