Foldable curtain frame and curtain frame thereof

Abstract

The utility model relates to the field of multimedia display, in particular to a foldable curtain frame and a curtain frame thereof. The foldable curtain frame comprises first cross beams, a connecting structure and a limiting structure, the two first cross beams are the first top cross beam and the first bottom cross beam respectively, one end of each first cross beam is rotationally connected with a second cross beam, and U-shaped supports are connected to the tail ends of the two first cross beams and the tail ends of the two second cross beams in an inserted mode. A connecting structure is arranged between the first bottom beam and the second bottom beam, folding between the first beam and the second beam is achieved through the connecting structure, and a limiting structure is arranged between the first bottom beam and the U-shaped support and between the second bottom beam and the U-shaped support. Through an innovative folding mechanism, a user can easily fold the curtain frame from an unfolded state to a compact state, the storage space is greatly saved, the curtain frame is convenient to carry and transport, in the folding process, the stability of the frame in the folded state is ensured through the ingenious cooperation of the movable lock teeth and the rotary lock teeth, and the folding effect is good. And inconvenience or damage caused by accidental unfolding is avoided.

Description

Technical Field

[0001] The utility model relates to the field of multimedia display, in particular to a foldable curtain frame and its curtain rack. Background Technique

[0002] In the current fields of multimedia display and projection, as an important component for supporting and fixing the curtain, the design and function of the curtain frame directly affect the convenience and flexibility of use. However, the traditional curtain frame design has limitations in many aspects, mainly reflected in the complexity of disassembly and assembly and the non-adjustability of size.

[0003] First of all, the complexity of disassembly and assembly is a significant problem of the existing curtain frame. Traditional curtain frames usually use multiple sets of fasteners such as screws and nuts for connection and fixation. The disassembly and assembly process is cumbersome and requires professional tools and technical support. For non-professionals, such a design not only increases the operation difficulty but also easily causes damage or loss of components during disassembly and assembly, thereby affecting the overall performance and service life of the curtain frame. In addition, the complex disassembly and assembly process also reduces the portability and flexibility of the curtain frame, making it difficult to meet the needs of diverse usage scenarios.

[0004] Secondly, the non-adjustability of size is another major defect of the existing curtain frame. When the traditional curtain frame is designed and manufactured, its width is usually fixed and cannot be adjusted according to actual needs. This design to a certain extent limits the applicable range of the curtain frame and cannot meet the installation requirements of different-sized curtains. In practical applications, when it is necessary to replace the curtain with a different size, it is often necessary to purchase a curtain frame that matches it again, which not only increases the usage cost but also causes waste of resources.

[0005] Therefore, it is necessary to provide a new foldable curtain frame and its curtain rack to solve the above technical problems. Content of the Utility Model

[0006] To solve the above technical problems, the utility model provides a foldable curtain frame and its curtain rack.

[0007] The foldable curtain frame provided by the utility model includes: a first cross beam, a connection structure, and a limiting structure. The two first cross beams are respectively a top first cross beam and a bottom first cross beam. One end of each of the two first cross beams is rotatably connected to a second cross beam. A U-shaped bracket is inserted between the two first cross beams and the ends of the two second cross beams. A connection structure is provided between the bottom first cross beam and the second cross beam, and the connection structure realizes the folding between the first cross beam and the second cross beam. A limiting structure is provided between the bottom first cross beam and the second cross beam and the U-shaped bracket.

[0008] Preferably, the connection structure includes a limiting spring, a sliding plate, a push rod, a movable locking tooth, a fixed locking tooth, and a rotating locking tooth. One end of the bottom crossbeam 1 near the crossbeam 2 is fixedly connected to the limiting spring at its axis. One end of the limiting spring is fixedly connected to the sliding plate. The sliding plate is slidably connected to the axis of one end of the bottom crossbeam 1. One end of the sliding plate away from the limiting spring is fixedly connected to the push rod. One end of the push rod is fixedly connected to the movable locking tooth. A fixed locking tooth is provided at the axis of the bottom crossbeam 1. A rotating locking tooth is provided at the axis of one end of the crossbeam 2 near the bottom crossbeam 1. One end of the push rod extends out of the crossbeam 2, and the movable locking tooth is meshed with the fixed locking tooth and the rotating locking tooth respectively.

[0009] Preferably, the limiting structure includes a limiting hole, an elastic sheet, and a limiting ball. Limiting holes are provided on one side of the bottom crossbeam 1 and the corresponding crossbeam 2. Both ends of the U-shaped bracket are hollow-designed, and elastic sheets are fixedly connected to both ends of the U-shaped bracket. One end of the elastic sheet is fixedly connected to the limiting ball. The limiting ball extends out of the U-shaped bracket and is clamped with one of the limiting holes.

[0010] Preferably, a plug is threadedly connected to the inner wall of the limiting hole. One end of the plug is fixed to one side of the bottom crossbeam 1 and the corresponding crossbeam 2 through a pull rope.

[0011] Preferably, a trapezoidal extrusion block is slidably connected to one end of the crossbeam 2, and the inclined surface of the trapezoidal extrusion block faces the top end of the push rod.

[0012] Preferably, anti-slip lines are provided at the top end of the trapezoidal extrusion block.

[0013] The curtain frame provided by the present utility model includes the above-mentioned foldable curtain border, and further includes a leg device used in cooperation with the foldable curtain border. The leg device includes a base and a support frame. Two support frames are respectively fixed to one end of the bottom crossbeam 1 and the corresponding crossbeam 2 through bolts. The bottom ends of the two support frames are respectively installed on the top end of the base.

[0014] Preferably, threaded heads are symmetrically and fixedly connected to the top end of the base. Folding water buckets are threadedly connected to the threaded heads. Clear water is injected into the inner walls of the folding water buckets.

[0015] Preferably, placing grooves are symmetrically provided at the bottom end of the base.

[0016] Compared with the related art, the foldable curtain border and its curtain frame provided by the present utility model have the following beneficial effects:

[0017] Convenient folding and fixing functions:

[0018] Through the innovative folding mechanism, users can easily fold the curtain border from the unfolded state to the compact form, greatly saving storage space and being convenient for carrying and transportation;

[0019] During the folding process, the ingenious cooperation between the moving locking teeth and the rotating locking teeth ensures the stability of the frame in the folded state, avoiding inconvenience or damage caused by accidental unfolding;

[0020] After reset, the trapezoidal extrusion block and the limit spring can automatically lock the frame in a fixed state, with simple and quick operation, improving the user experience;

[0021] Flexible adjustment and limiting ability:

[0022] The adjustment design of the U-shaped bracket allows users to adjust its position on the cross beam according to actual needs, meeting the installation and use requirements in different scenarios;

[0023] The detachable design of the plug provides users with the possibility of flexibly adjusting the position of the limiting hole, further enhancing the adaptability and flexibility of the frame;

[0024] The precise engagement between the limiting ball and the limiting hole ensures the stability of the U-shaped bracket after adjustment, preventing sliding or falling off;

[0025] Stable assembly structure and load-bearing capacity:

[0026] The stable assembly of the support frame and the base provides a solid support foundation for the curtain frame, ensuring the stability and safety of the entire structure;

[0027] The folding water bucket, as a counterweight device, not only increases the stability of the curtain frame but also can resist interference from external factors such as wind to a certain extent, ensuring the smoothness of the curtain during display;

[0028] The carefully designed assembly structure and material selection enable the entire curtain frame and curtain rack to have strong load-bearing capacity, suitable for curtains of various specifications and weights. Description of the Drawings

[0029] Figure 1 It is a schematic structural diagram of the foldable curtain frame provided by the present utility model;

[0030] Figure 2 is Figure 1 One of the schematic structural diagrams of the partial cross-section of the frame shown;

[0031] Figure 3 is Figure 1 Another schematic structural diagram of the partial cross-section of the frame shown;

[0032] Figure 4 is Figure 1 The schematic structural diagram of the end of the U-shaped bracket shown;

[0033] Figure 5 It is a schematic structural diagram of the curtain rack provided by the present utility model;

[0034] Figure 6 is Figure 5 a schematic structural view of the threaded head shown;

[0035] Figure 7 is Figure 5 a schematic structural view of the bottom of the base shown.

[0036] Reference numerals in the figure: 1, the first cross beam; 101, the first bottom cross beam; 102, the first top cross beam; 2, the second cross beam; 3, the U-shaped bracket; 4, the connecting structure; 41, the limiting spring; 42, the sliding plate; 43, the ejector rod; 44, the moving locking tooth; 45, the fixed locking tooth; 46, the rotating locking tooth; 5, the limiting structure; 51, the limiting hole; 52, the elastic piece; 53, the limiting ball; 6, the plug; 7, the trapezoidal extrusion block; 8, the support leg device; 81, the base; 82, the support frame; 83, the threaded head; 84, the folding water bucket; 85, the placing groove. Specific embodiments

[0037] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0038] The following describes in detail the specific implementation of the present utility model with reference to specific embodiments.

[0039] Please refer to Figures 1-5 A foldable curtain frame, the foldable curtain frame includes: the first cross beam 1, the connecting structure 4 and the limiting structure 5. The two first cross beams 1 are respectively the first top cross beam 102 and the first bottom cross beam 101. One end of each of the two first cross beams 1 is rotatably connected to the second cross beam 2. The two first cross beams 1 and the ends of the two second cross beams 2 are inserted with a U-shaped bracket 3. A connecting structure 4 is provided between the first bottom cross beam 101 and the second cross beam 2. The connecting structure 4 realizes the folding between the first cross beam 1 and the second cross beam 2. A limiting structure 5 is provided between the first bottom cross beam 101 and the second cross beam 2 and the U-shaped bracket 3. The top end of the trapezoidal extrusion block 7 is provided with anti-slip lines.

[0040] Please refer to Figures 2-3, the connecting structure 4 includes: a limiting spring 41, a sliding plate 42, a push rod 43, a movable locking tooth 44, a fixed locking tooth 45 and a rotating locking tooth 46. At the axial center of one end of the bottom cross beam 101 close to the cross beam 2, the limiting spring 41 is fixedly connected. One end of the limiting spring 41 is fixedly connected with the sliding plate 42. The sliding plate 42 is slidably connected to the axial center of one end of the bottom cross beam 101. The end of the sliding plate 42 away from the limiting spring 41 is fixedly connected with the push rod 43. One end of the push rod 43 is fixedly connected with the movable locking tooth 44. A fixed locking tooth 45 is provided at the axial center of the bottom cross beam 101. A rotating locking tooth 46 is provided at the axial center of one end of the cross beam 2 close to the bottom cross beam 101. One end of the push rod 43 extends out of the cross beam 2, and the movable locking tooth 44 is meshed with the fixed locking tooth 45 and the rotating locking tooth 46 respectively. One end of the cross beam 2 is slidably connected with a trapezoidal extrusion block 7, and the inclined surface of the trapezoidal extrusion block 7 faces the top end of the push rod 43.

[0041] Please refer to Figures 4-5 , the limiting structure 5 includes: a limiting hole 51, a spring piece 52 and a limiting ball 53. Limiting holes 51 are provided on one side of the bottom cross beam 101 and the corresponding cross beam 2. Both ends of the U-shaped bracket 3 are hollow-designed, and spring pieces 52 are fixedly connected to both ends of the U-shaped bracket 3. One end of the spring piece 52 is fixedly connected with the limiting ball 53. The limiting ball 53 extends out of the U-shaped bracket 3 and is clamped with one of the limiting holes 51. A plug 6 is threadedly connected to the inner wall of the limiting hole 51. One end of the plug 6 is fixed to one side of the bottom cross beam 101 and the corresponding cross beam 2 through a pull rope.

[0042] Please refer to Figures 5-7 , a foldable curtain frame, the foldable curtain frame includes: the above-mentioned foldable curtain frame, and further includes a leg device 8 used in cooperation with the foldable curtain frame. The leg device 8 includes: a base 81 and a support frame 82. Two support frames 82 are respectively fixed to one end of the bottom cross beam 101 and the corresponding cross beam 2 through bolts. The bottom ends of the two support frames 82 are respectively installed on the top end of the base 81. Threaded heads 83 are symmetrically fixedly connected to the top end of the base 81. A folding water bucket 84 is threadedly connected to the threaded head 83. The inner wall of the folding water bucket 84 is filled with clear water. Placement grooves 85 are symmetrically provided at the bottom end of the base 81.

[0043] The working principle of the foldable curtain frame and its curtain rack provided by the present utility model is as follows:

[0044] 1. Folding and fixing mechanism of the curtain frame

[0045] Folding process:

[0046] When the curtain frame needs to be folded from the unfolded state, first operate the trapezoidal extrusion block 7; the user pushes the trapezoidal extrusion block 7 so that its inclined surface contacts and squeezes one end of the push rod 43;

[0047] The extrusion of the trapezoidal extrusion block 7 causes the ejector rod 43 to move inward, thereby compressing the limit spring 41; as the ejector rod 43 moves, the movable lock tooth 44 connected thereto gradually disengages from the meshed state with the fixed lock tooth 45 and the rotating lock tooth 46 and completely moves inside the fixed lock tooth 45;

[0048] At this time, the second cross beam 2 is no longer restricted by the movable lock tooth 44 and can rotate freely relative to the first cross beam 1; the user then turns the second cross beam 2 to a state folded with the first cross beam 1, completing the folding process of the frame;

[0049] Fixing process:

[0050] After folding, the trapezoidal extrusion block 7 is reset, and the limit spring 41 pushes the ejector rod 43 to move outward under the action of elastic force, so that the movable lock tooth 44 meshes with the rotating lock tooth 46 again;

[0051] The meshed movable lock tooth 44 and rotating lock tooth 46 work together to firmly fix the first cross beam 1 and the second cross beam 2 together, preventing the frame from accidentally unfolding when folding is not required;

[0052] 2. Adjustment and limitation of the U-shaped bracket 3

[0053] When it is necessary to adjust the position of the U-shaped bracket 3 on the cross beam, first observe and determine the position of the limit hole 51 where the limit ball 53 is currently clamped;

[0054] According to the position to be adjusted, find the corresponding limit hole 51 and remove the plug 6 at this place; the removal of the plug 6 provides a path for the limit ball 53 to enter the new limit hole 51;

[0055] Subsequently, gently pull the U-shaped bracket 3 to slide it along the cross beam to a new appropriate position; when the limit ball 53 aligns with the new limit hole 51, release the U-shaped bracket 3, and the limit ball 53 automatically snaps into the new limit hole 51 under the action of the elastic piece 52, completing the position adjustment and limit fixation of the U-shaped bracket 3;

[0056] 3. Assembly of the curtain frame and the curtain rack

[0057] Before preparing to assemble the folded curtain frame and the curtain rack, first ensure that the two support frames 82 have been removed from the bottom end of the base 81 and are in an installable state;

[0058] Align and insert the two support frames 82 into the installation holes at one end of the bottom cross beam 1 and the corresponding cross beam 2 respectively; firmly fix the support frames 82 on the cross beam by bolts or other fastening methods;

[0059] Next, place the assembled leg device 8 (including the base 81 and the support frame 82) at a predetermined position; at this time, the top of the base 81 (81) faces upward, and the support frame 82 extends vertically upward;

[0060] Finally, fill the folding water bucket 84 with clean water; the bottom of the water bucket is designed with a threaded interface that matches the threaded head 83 on the base 81; the user only needs to rotate the folding water bucket 84 onto the threaded head 83 and tighten it to complete the installation; the clean water in the folding water bucket 84 can increase the stability of the curtain rack and play a certain counterweight role.

[0061] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A foldable curtain frame, characterized in that, Comprising: A first crossbeam (1), the two first crossbeams (1) are respectively a top first crossbeam (102) and a bottom first crossbeam (101), one end of each of the two first crossbeams (1) is rotatably connected to a second crossbeam (2), and a U-shaped bracket (3) is inserted at the ends of the two first crossbeams (1) and the two second crossbeams (2); A connecting structure (4), a connecting structure (4) is provided between the bottom first crossbeam (101) and the second crossbeam (2), and the connecting structure (4) realizes the folding between the first crossbeam (1) and the second crossbeam (2); A limiting structure (5), a limiting structure (5) is provided between the bottom first crossbeam (101) and the second crossbeam (2) and the U-shaped bracket (3).

2. The collapsible curtain border according to claim 1, wherein, The connecting structure (4) includes: a limiting spring (41), a sliding plate (42), a top rod (43), a movable locking tooth (44), a fixed locking tooth (45) and a rotating locking tooth (46). At the axial center of one end of the bottom first crossbeam (101) close to the second crossbeam (2), a limiting spring (41) is fixedly connected. One end of the limiting spring (41) is fixedly connected to a sliding plate (42). The sliding plate (42) is slidably connected to the axial center of one end of the bottom first crossbeam (101). One end of the sliding plate (42) far from the limiting spring (41) is fixedly connected to a top rod (43). One end of the top rod (43) is fixedly connected to a movable locking tooth (44). A fixed locking tooth (45) is provided at the axial center of the bottom first crossbeam (101). A rotating locking tooth (46) is provided at the axial center of one end of the second crossbeam (2) close to the bottom first crossbeam (101). One end of the top rod (43) extends out of the second crossbeam (2), and the movable locking tooth (44) is meshed with the fixed locking tooth (45) and the rotating locking tooth (46) respectively.

3. The foldable curtain border according to claim 1, wherein, The limiting structure (5) includes: a limiting hole (51), a spring piece (52) and a limiting ball (53). Limiting holes (51) are provided on one side of the bottom first crossbeam (101) and the corresponding second crossbeam (2). Both ends of the U-shaped bracket (3) are designed to be hollow, and spring pieces (52) are fixedly connected to both ends of the U-shaped bracket (3). One end of the spring piece (52) is fixedly connected to a limiting ball (53). The limiting ball (53) extends out of the U-shaped bracket (3) and is clamped with one of the limiting holes (51).

4. The collapsible curtain border according to claim 1, wherein A plug (6) is threadedly connected to the inner wall of the limiting hole (51), and one end of the plug (6) is fixed to one side of the bottom first crossbeam (101) and the corresponding second crossbeam (2) through a pull rope.

5. The collapsible curtain frame according to claim 1, characterized in that, One end of the second crossbeam (2) is slidably connected with a trapezoidal extrusion block (7), and the inclined surface of the trapezoidal extrusion block (7) faces the top end of the top rod (43).

6. The collapsible curtain border according to claim 1, characterized in that, The top end of the trapezoidal extrusion block (7) is provided with anti-slip lines.

7. A curtain rack, characterized in that, Comprising the foldable curtain frame according to any one of the above claims 1 to 6, further comprising a leg device (8) used in cooperation with the foldable curtain frame; The leg device (8) includes: a base (81) and a support frame (82). The two support frames (82) are respectively fixed to one end of the bottom first crossbeam (101) and the corresponding second crossbeam (2) through bolts, and the bottom ends of the two support frames (82) are respectively installed on the top end of the base (81).

8. The curtain rack according to claim 7, characterized in that, At the top of the base (81), there are symmetrically fixedly connected threaded heads (83). A collapsible water bucket (84) is threadedly connected to the threaded heads (83), and clear water is filled in the inner wall of the collapsible water bucket (84).

9. The curtain rack according to claim 7, characterized in that, At the bottom end of the base (81), there are symmetrically provided placement grooves (85).

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