Integrated folding screen support

Abstract

The utility model relates to the technical field of screen supports, in particular to an integrated folding screen support, which comprises four corner brackets and a plurality of cross rods which are encircled to form a rectangular frame structure, and each corner bracket comprises a first support rod and a second support rod; the transverse rods are connected between the two first supporting rods in a foldable mode to form long sides of a rectangle, and every two second supporting rods are connected in a foldable mode to form wide sides of the rectangle. The first supporting rods and the second supporting rods are folded and connected through first connecting pieces, and the two second supporting rods are folded and connected through second connecting pieces. And the first supporting rods and the cross rods as well as the two cross rods are in folding connection through third connecting pieces. By arranging the corner brackets, the cross rods and the connecting pieces between the corner brackets and the cross rods, all the rods form an integrated structure, tedious mounting and dismounting are not needed, opening and storage are convenient, only one person can operate, the labor cost is reduced, and the mounting efficiency is improved; after being folded, the rod pieces are tightly arranged, the occupied space is small, and carrying is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of screen brackets, in particular to an integrated folding screen bracket. Background Art

[0002] Outdoor movie screenings, especially in rural areas, enrich people's leisure time and satisfy their cultural and entertainment needs. Outdoor movie screenings require a screen stand. Since these screen stands can be used in various locations, they must be portable and easy to install and store. Conventional screen stands require manual installation and disassembly using tools such as bolts to secure or disassemble the rods. This is labor-intensive and involves numerous parts that are prone to loss.

[0003] The utility model patent with application number 202420359989.4 discloses a foldable bracket that uses a support rod assembly, a adapter assembly, and a tensioning member arranged in the support tube of the support rod assembly to support the bracket. However, this support method using plug-in and tensioning ropes has a small supporting force and the tensioning ropes are easily worn. It is suitable for scenes such as small advertising brackets and photography background stands, but is not suitable for hanging screens during movie screenings. Utility Model Content

[0004] Technical purpose: In order to overcome the deficiencies in the prior art, the utility model provides an integrated folding screen bracket, which realizes the integrated folding of the screen bracket, is convenient to carry and easy to install.

[0005] Technical solution: To achieve the above-mentioned purpose, the utility model discloses an integrated folding screen bracket, comprising four corner brackets and a plurality of cross bars that form a rectangular frame structure, wherein the corner brackets include a first support bar and a second support bar;

[0006] The crossbar can be folded and connected between the two first support rods to form the long side of the rectangle, and the second support rods can be folded and connected in pairs to form the wide side of the rectangle;

[0007] The first support rod and the second support rod are foldably connected via a first connecting member, and the two second support rods are foldably connected via a second connecting member;

[0008] The first support rod and the cross rod as well as the two cross rods are foldably connected via a third connecting member.

[0009] Furthermore, the first connecting member includes a folding plate 1 and a folding plate 2 that are hinged to each other, and also includes a guide plate; the folding plate 1 is hinged to the first support rod, the folding plate 2 is hinged to the second support rod, and one end of the guide plate is fixedly connected to the first support rod, and the other end is hinged to the second support rod.

[0010] Further, the second connecting piece comprises a clamping block one, a clamping block two and mutually hinged connecting plates one and two, the connecting plates one and two are fixedly arranged at the two second supporting rod ends, the clamping block one is rotatably connected with the connecting plate one through a spring, and the clamping block two is fixedly connected with the connecting plate two; a convex part is arranged on the clamping block one, and a groove matched with the convex part is arranged on the clamping block two.

[0011] Further, the plane in which the screen support is expanded is defined as a frame plane, and the two second connecting pieces can be close to or away from each other in the frame plane.

[0012] Further, the third connecting pieces can move in a plane perpendicular to the frame plane.

[0013] Further, a plurality of vertical rods are arranged between the two long edges, and the vertical rods are detachably connected between the opposite two horizontal rods or two first supporting rods.

[0014] Further, the vertical rods are provided with fourth connecting pieces for folding the vertical rods.

[0015] Further, the second connecting pieces, the third connecting pieces and the fourth connecting pieces are of the same structure.

[0016] Further, the first connecting piece further comprises a guide rod arranged on the second supporting rod, and an arc is arranged on the guide plate, and the guide plate can move along the arc around the guide rod.

[0017] Further, a hanging ring is arranged on the screen support for hanging a screen.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The integrated folding screen support of the utility model is provided with a corner frame, a horizontal rod and connecting pieces therebetween, so that the rods form an integrated structure, without complicated installation and disassembly, and the screen support is convenient to expand and store, and only one person is needed to operate, so that labor cost is reduced and installation efficiency is improved; after being folded, the rods are closely arranged, take up small space and are convenient to carry; and the further increased stability of the support is achieved by arranging the foldable vertical rods. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a front view of the screen support structure of the utility model;

[0021] Figure 2 It is a structure schematic view of the second connecting piece in a close state;

[0022] Figure 3 It is a bottom view of the screen support structure of the utility model;

[0023] Figure 4 This is a schematic diagram of a certain state of the screen bracket folding process of the utility model;

[0024] Figure 5 for Figure 1 A magnified view of the structure of part A;

[0025] Figure 6 is a structural schematic diagram of the first connecting member;

[0026] Figure 7 Schematic diagram of the second connecting member structure.

[0027] In the figure, 10, angle bracket; 11, first support rod; 12, second support rod; 20, horizontal rod; 30, vertical rod; 40, first connecting member; 41, folding plate 1; 42, folding plate 2; 43, guide plate; 44, guide rod; 50, second connecting member; 51, clamping block 1; 52, clamping block 2; 53, connecting plate 1; 54, connecting plate 2; 55, protrusion; 56, groove; 60, third connecting member; 70, fourth connecting member; 80, hanging ring. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1 To the attached Figure 7 The principles and features of the present invention are described, and the examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0029] A one-piece folding screen stand comprises four corner frames 10 and several crossbars 20, forming a rectangular frame structure. The corner frames 10 are located at the four corners of the rectangular structure and include first and second support bars 11 and 12, with four first and second support bars 11 and 12, respectively. Four crossbars 20 are provided, each connected and foldable between two first support bars 11, forming the two long sides of the rectangle. Four second support bars 12 are foldable and connected in pairs, forming the two wide sides of the rectangle. To ensure a more stable frame structure, in one embodiment, several vertical bars 30 are provided between the two long sides. The ends of the vertical bars 30 are detachably connected between two opposing crossbars 20 or between two first support bars 11 on the two long sides. The ends of the vertical bars 30 can be secured with bolts, or sockets can be provided on the long sides for insertion and securing. Each bar is preferably a square tube. The screen stand also has a hanging ring 80 for hanging the screen.

[0030] Connecting structures are provided between the rods. Specifically, the first support rod 11 and the second support rod 12 are foldably connected via a first connecting member 40, and the two second support rods 12 are foldably connected via a second connecting member 50. The first support rod 11 and the crossbar 20, as well as the two crossbars 20, are foldably connected via a third connecting member 60. A fourth connecting member 70 is provided on the vertical rod 30 to facilitate folding of the vertical rod 30. The second connecting member 50, the third connecting member 60, and the fourth connecting member 70 have the same structure.

[0031] The first connecting member 40 includes a hinged folding plate 1 41 and a second folding plate 42, and a guide plate 43. The folding plate 1 41 is hinged to the first support rod 11, while the folding plate 2 42 is hinged to the second support rod 12. One end of the guide plate 43 is fixedly connected to the first support rod 11, and the other end is hinged to the second support rod 12. When the screen bracket is extended, the folding plates 1 41 and 2 42 are arranged in a straight line, forming a stable right-angled triangle with the first and second support rods 11 and 12. Slots are provided on the first and second support rods 11 and 12 to accommodate the folding plates 1 41 and 42. To fold the folding plates 1 41 and 42, a slight push on the hinged portion of the folding plates 1 41 and 42 releases their straight line. The folding plates 1 41 and 42 rotate about their hinge points with the first and second support rods 11, and the folding plates 2 rotate about their hinge points with the second support rod 12, thereby folding the first and second support rods 11 and 12.

[0032] In order to ensure that the first support rod 11 and the second support rod 12 move stably during the expansion and folding process, in one embodiment, the first connecting member 40 also includes a guide rod 44, which is arranged on the second support rod 12, and a circular arc is provided on the guide piece 43. During the expansion and folding process, when the guide piece 43 contacts the guide rod 44, the guide piece 43 can move around the guide rod 44 along its own circular arc structure, thereby playing a role of stable guidance.

[0033] The second connecting member 50 includes a first clamping block 51, a second clamping block 52, and a hinged connection piece 53 and a second connection piece 54. The connection pieces 1 and 54 are fixedly mounted at the ends of the two second support rods 12. The first clamping block 51 and the connection piece 1 53 are rotatably connected by a spring. Specifically, the first clamping block 51 is provided with a torsion spring, while the second clamping block 52 is fixedly connected to the second connection piece 54. The first clamping block 51 is provided with a protrusion 55, and the second clamping block 52 is provided with a matching groove 56. When the screen bracket is extended, the first clamping block 51 and the second clamping block 52 approach each other. After contact, the protrusion 55 slides into the groove 56, completing the clamping of the second connecting member 50 and ensuring the clamping under the action of the torsion spring; when retracting, the end of the first clamping block 51 away from the protrusion 55 is pressed to make the protrusion 55 tilt up and leave the groove 56, so that the second connecting member 50 is released from the clamping state, the first clamping block 51 is released, and the first clamping block 51 is reset under the action of the torsion spring.

[0034] like Figures 2 to 4 As shown in the figure (the connecting member structure is omitted in the figure), the folding and moving methods of each rod are described as follows:

[0035] The plane where the screen bracket is extended is defined as the frame plane. The two second connecting members 50 can move closer to or farther from each other within the frame plane. The third connecting members 60 can move in a plane perpendicular to the frame plane. Specifically, taking the storage process as an example, the moving direction of one of the second connecting members 50 is defined as the x-direction, and the moving direction of the third connecting member 60 between the first support rod 11 and the crossbar 20 is defined as the z-direction. First, the two second connecting members 50 are released from the clamping state in turn. One of the second connecting members 50 is pushed along the x-direction, and the other second connecting member 50 is pushed in the opposite direction along the x-direction. Figure 2 As shown, the two second connecting members 50 approach each other, and the opposite sides of the two second support rods 12 approach each other until they fit together. In this process, the two long sides also approach each other. Then, the clamping state of the third connecting member 60 is released in sequence, as shown in FIG. Figure 3 and Figure 4 As shown, the third connecting member 60 between the first support rod 11 and the crossbar 20 moves in the z-direction, while the third connecting member 60 between the two crossbars 20 moves in the opposite z-direction. The opposing sides of the first support rod 11 and the crossbar 20, as well as the two crossbars 20, move closer together until they are in contact. This completes the stowage process. The screen bracket expansion process is the reverse of the above process.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An integrated folding screen bracket, characterized in that: It comprises four corner frames (10) and a plurality of cross bars (20) which are combined to form a rectangular frame structure, wherein the corner frame (10) comprises a first support bar (11) and a second support bar (12); The crossbar (20) can be folded and connected between the two first support rods (11) to form the long side of the rectangle, and the second support rods (12) can be folded and connected in pairs to form the wide side of the rectangle; The first support rod (11) and the second support rod (12) are foldably connected via a first connecting member (40), and the two second support rods (12) are foldably connected via a second connecting member (50); The first support rod (11) and the cross rod (20), as well as the two cross rods (20), are foldably connected via a third connecting member (60).

2. The integrated folding screen bracket according to claim 1, characterized in that: The first connecting member (40) includes a folding plate 1 (41) and a folding plate 2 (42) that are hinged to each other, and also includes a guide piece (43); the folding plate 1 (41) is hinged to the first support rod (11), the folding plate 2 (42) is hinged to the second support rod (12), and one end of the guide piece (43) is fixedly connected to the first support rod (11), and the other end is hinged to the second support rod (12).

3. The integrated folding screen bracket according to claim 1, characterized in that: The second connecting member (50) comprises a first clamping block (51), a second clamping block (52), and a first connecting piece (53) and a second connecting piece (54) which are hinged to each other. The first connecting piece (53) and the second connecting piece (54) are fixedly arranged at the ends of the two second support rods (12). The first clamping block (51) is rotatably connected to the first connecting piece (53) via a spring, and the second clamping block (52) is fixedly connected to the second connecting piece (54). A protrusion (55) is provided on the first clamping block (51), and a groove (56) which cooperates with the protrusion (55) is provided on the second clamping block (52).

4. The integrated folding screen bracket according to claim 1, characterized in that: The plane where the screen bracket is located when it is extended is defined as a frame plane, and the two second connecting members (50) can move closer to or farther from each other in the frame plane.

5. The integrated folding screen bracket according to claim 4, characterized in that: The plurality of third connecting members (60) are movable in a plane perpendicular to the plane of the frame.

6. The integrated folding screen bracket according to claim 1, characterized in that: A plurality of vertical rods (30) are further provided between the two long sides, and both ends of the vertical rods (30) are detachably connected to the two opposite horizontal rods (20) or the two first support rods (11).

7. The integrated folding screen bracket according to claim 6, characterized in that: A fourth connecting member (70) is provided on the vertical rod (30) for folding the vertical rod (30).

8. The integrated folding screen bracket according to claim 7, characterized in that: The second connecting member (50), the third connecting member (60) and the fourth connecting member (70) have the same structure.

9. The integrated folding screen bracket according to claim 2, characterized in that: The first connecting member (40) further comprises a guide rod (44), wherein the guide rod (44) is arranged on the second support rod (12), and the guide piece (43) is provided with an arc, and the guide piece (43) can move around the guide rod (44) along the arc.

10. The integrated folding screen bracket according to claim 1, characterized in that: The screen bracket is provided with a hanging ring (80) for hanging the screen.

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