Folding structure suitable for folding screen

Abstract

The utility model provides a folding structure suitable for a folding screen, which comprises a supporting assembly, two groups of opening and closing assemblies capable of rotating relative to the supporting assembly are arranged on the supporting assembly, expansion assemblies are arranged on the opening and closing assemblies, an air transmission assembly is arranged in the supporting assembly, the air transmission assembly is connected with the expansion assemblies, and the expansion assemblies are connected with the supporting assembly. And the expansion assembly is connected with the opening and closing assembly and can drive the opening and closing assembly to rotate. Through the arranged gas transmission assembly, lubricating oil can be injected into the movable connection point, and the movement smoothness is improved; through the arranged expansion assembly, when the folding screen is folded and closed and the hinge structure moves slowly and even rigidly, driving force can be applied from the folded contact surface to assist the folding screen in opening, and the screen cannot be damaged.

Description

Technical Field

[0001] The utility model relates to the field of folding screens, and in particular to a folding structure suitable for folding screens. Background Art

[0002] In the field of exhibitions, folding screens are often used in various display activities, such as exhibitions, museums, shopping malls, etc. By folding or unfolding the screen as needed, various creative shapes can be easily achieved, such as waves, arcs, rings, columns, stairs, special shapes, etc., thus creating a more attractive display effect. In actual applications, folding screens are used in fixed areas for a long time. As the use time increases, the hinge structure may become sluggish or even stiff, affecting the use.

[0003] For example: the "Folding screen hinge structure and folding screen electronic device" disclosed in Chinese utility model patent CN201922427543.2, its specification discloses: by arranging a folding screen hinge structure between the first frame and the second frame, it is possible to avoid the folding screen from exerting force on the supporting frame during the bending process, and can effectively buffer the stress generated when the folding screen is folded and in a folded state; at the same time, the length adjustability of the folding screen hinge structure along the second direction is also achieved, so that the folding screen does not deform when it is bent and the shell is retracted in the bending area, thereby eliminating the stress when the display device is folded, optimizing the stress concentration problem, achieving easy bendability, and extending the service life of the folding screen and the folding screen electronic device; but it still cannot solve the problem that the hinge structure may be sluggish or even stiff, affecting use.

[0004] Therefore, we made improvements to this and proposed a folding structure suitable for folding screens. Summary of the invention

[0005] The purpose of the utility model is to address the problem that the existing folding screen is used in a fixed area for a long time, and as the use time increases, its hinge structure may become sluggish or even stiff, affecting the use.

[0006] In order to achieve the above-mentioned purpose of the invention, the utility model provides a folding structure suitable for a folding screen to improve the above-mentioned problem.

[0007] The present application is specifically as follows: A folding structure suitable for a folding screen, comprising:

[0008] A support assembly, wherein the support assembly is provided with two groups of opening and closing assemblies that can rotate relative to the support assembly, the opening and closing assembly is provided with an expansion assembly, and an air supply assembly is provided inside the support assembly, the air supply assembly is connected to the expansion assembly to cause the expansion assembly to expand and deform, and the expansion assembly is connected to the opening and closing assembly to drive the opening and closing assembly to rotate.

[0009] As a preferred technical solution of the present application, the support assembly includes a support column and an end cover arranged at the top end of the support column, and also includes a limiting ring sleeved on the support column.

[0010] As a preferred technical solution of the present application, the opening and closing assembly includes a movable plate and a sleeve fixedly arranged on one side of the movable plate, the sleeve is rotatably connected to the support column, and also includes a mounting groove opened on the other side of the movable plate.

[0011] As a preferred technical solution of the present application, the gas delivery assembly includes a compression chamber opened inside the support column, a mounting ring fixed inside the compression chamber, and a rotating shaft rotatably arranged inside the mounting ring, and also includes a hexagonal groove opened at the top of the rotating shaft.

[0012] As a preferred technical solution of the present application, the air delivery assembly also includes a cylindrical cam arranged inside the compression chamber and a limit block slidably arranged inside the cylindrical cam, as well as a connecting strip fixedly arranged at the bottom end of the rotating shaft and a first piston fixedly arranged at the bottom of the cylindrical cam, and the end of the connecting strip passes through the cylindrical cam and is fixedly connected to the limit block.

[0013] As a preferred technical solution of the present application, the gas delivery assembly also includes an input hole opened at the bottom of the support column and a first one-way valve arranged inside the input hole, as well as a first output hole opened on the outer wall of the support column and a second one-way valve arranged inside the first output hole.

[0014] As a preferred technical solution of the present application, the expansion assembly includes an air bag fixedly arranged on adjacent surfaces of the two sets of movable plates, and also includes a connecting pipe connecting the air bag and the first output hole.

[0015] As a preferred technical solution of the present application, the gas delivery assembly also includes an injection channel opened inside the support column and a second piston slidably arranged inside the injection channel, a connecting hole opened between the injection channel and the compression chamber, and a second output hole opened on the outer wall of the support column, and the injection channel can be filled with lubricating oil.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] In the scheme of this application:

[0018] 1. The gas delivery assembly provided in this application can inject lubricating oil into the movable connection point to improve the smoothness of the movement;

[0019] 2. The expansion component provided in the present application can apply a driving force from the contact surface after folding to assist the folding screen to open when the folding screen is folded and closed and the hinge structure is sluggish or even stiff, without causing damage to the screen;

[0020] 3. The present application cooperates with the expansion component by providing an air delivery component, which can drive the hinge structure to move while injecting lubricating oil, so as to diffuse the lubricating oil and improve the degree of infiltration of the lubricating oil at the active point of the hinge structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of a folding structure suitable for a folding screen provided in the present application;

[0022] Figure 2 A schematic diagram of the structure of an opening and closing component of a folding structure suitable for a folding screen provided in the present application;

[0023] Figure 3 A structural schematic diagram of a support assembly of a folding structure suitable for a folding screen provided in the present application;

[0024] Figure 4 A schematic diagram of the structure of a support column of a folding structure suitable for a folding screen provided in the present application;

[0025] Figure 5 An enlarged view of A in a folding structure suitable for a folding screen provided in the present application;

[0026] Figure 6 An enlarged view of B in a folding structure suitable for a folding screen provided in the present application;

[0027] Figure 7 This is an enlarged view of C in a folding structure suitable for a folding screen provided in the present application.

[0028] Indicated in the figure:

[0029] 1. Support assembly; 11. End cover; 12. Support column; 13. Limiting ring; 2. Opening and closing assembly; 21. Movable plate; 22. Mounting groove; 23. Sleeve; 3. Expansion assembly; 31. Air bag; 32. Connecting pipe; 33. First output hole; 4. Air delivery assembly; 41. Rotating shaft; 42. Input hole; 43. Injection channel; 44. First piston; 45. Hexagonal groove; 46. Mounting ring; 47. Connecting strip; 48. Cylindrical cam; 49. Limiting block; 410. Curved groove; 411. Sliding block; 412. Connecting hole; 413. Second piston; 414. Compression chamber; 415. Second output hole. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0031] As described in the background art, the folding screen is used in a fixed area for a long time. As the usage time increases, its hinge structure may become sluggish or even stiff, affecting its use.

[0032] In order to solve this technical problem, the utility model provides a folding structure suitable for a folding screen.

[0033] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0034] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0036] Example

[0037] Please refer to Figure 1 and Figure 4 , a folding structure suitable for a folding screen, comprising:

[0038] A support component 1 is provided with two groups of opening and closing components 2 that can rotate relative to the support component 1. The support component 1 and the opening and closing components 2 form a hinge structure. An expansion component 3 is provided on the opening and closing component 2. An air supply component 4 is provided inside the support component 1. The air supply component 4 is connected to the expansion component 3 to make the expansion component 3 expand and deform. The expansion component 3 is connected to the opening and closing component 2 to drive the opening and closing component 2 to rotate. When the hinge structure is folded and the hinge structure becomes sluggish or even stiff, the expansion component 3 can apply a driving force from the contact surface of the two groups of opening and closing components 2 after folding to assist the opening and closing component 2 to open.

[0039] Further, such as Figure 1 and Figure 3 As shown, the support assembly 1 includes a support column 12 and an end cover 11 arranged at the top end of the support column 12 , and also includes a limit ring 13 sleeved on the support column 12 .

[0040] The end cover 11 closes the top of the support column 12 to prevent objects in the external environment from entering the interior of the support column 12. The end cover 11 is mounted on the top of the support column 12 by magnetic attraction, which is convenient for disassembly and assembly.

[0041] Further, such as Figure 2 and Figure 3 As shown, the opening and closing assembly 2 includes a movable plate 21 and a sleeve 23 fixedly arranged on one side of the movable plate 21 , the sleeve 23 is rotatably connected to the support column 12 , and also includes a mounting groove 22 opened on the other side of the movable plate 21 .

[0042] The sleeve 23 is rotatable relative to the support column 12 .

[0043] Further, such as Figure 4 , Figure 5 and Figure 6 As shown, the gas delivery assembly 4 includes a compression chamber 414 opened inside the support column 12, a mounting ring 46 fixedly arranged inside the compression chamber 414, and a rotating shaft 41 rotatably arranged inside the mounting ring 46, and also includes a hexagonal groove 45 opened at the top of the rotating shaft 41.

[0044] By inserting a hexagonal wrench into the hexagonal groove 45 , the rotating shaft 41 can be driven to rotate.

[0045] Further, such as Figure 4 , Figure 5 and Figure 6 As shown, the air delivery assembly 4 also includes a cylindrical cam 48 arranged inside the compression chamber 414 and a limit block 49 slidably arranged inside the cylindrical cam 48, as well as a connecting strip 47 fixedly arranged at the bottom end of the rotating shaft 41 and a first piston 44 fixedly arranged at the bottom of the cylindrical cam 48, and the end of the connecting strip 47 passes through the cylindrical cam 48 and is fixedly connected to the limit block 49.

[0046] A curved groove 410 is formed on the outer wall of the cylindrical cam 48, and a slider 411 is fixedly provided on the inner wall of the compression chamber 414, and the slider 411 is also slidably connected to the curved groove 410. When the rotating shaft 41 is driven by torque, the torque is transmitted to the limit block 49 through the connecting strip 47, driving the cylindrical cam 48 to rotate. The cylindrical cam 48 can move longitudinally inside the compression chamber 414 and drive the first piston 44 to move synchronously.

[0047] Further, such as Figure 3 and Figure 4 As shown, the gas delivery assembly 4 also includes an input hole 42 opened at the bottom of the support column 12 and a first one-way valve arranged inside the input hole 42, as well as a first output hole 33 opened on the outer wall of the support column 12 and a second one-way valve arranged inside the first output hole 33.

[0048] When the first piston 44 moves upward, external air enters the compression chamber 414 through the input hole 42 , and when the first piston 44 moves downward, the air inside the compression chamber 414 is compressed.

[0049] Further, such as Figure 1 and Figure 3 As shown, the expansion assembly 3 includes an air bag 31 fixedly arranged on adjacent surfaces of the two sets of movable plates 21 , and also includes a connecting pipe 32 connecting the air bag 31 and the first output hole 33 .

[0050] The compressed air in the compression chamber 414 is guided to the inside of the airbag 31 through the connecting pipe 32, causing the airbag 31 to expand and deform.

[0051] Further, such as Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the gas delivery component 4 also includes an injection channel 43 opened inside the support column 12 and a second piston 413 slidably arranged inside the injection channel 43, as well as a connecting hole 412 opened between the injection channel 43 and the compression chamber 414, and a second output hole 415 opened on the outer wall of the support column 12. Lubricating oil can be filled in the injection channel 43.

[0052] The compressed air inside the compression chamber 414 is also guided to the injection channel 43 through the connecting hole 412, driving the injection channel 43 to slide inside the injection channel 43, and the lubricating oil filled into the injection channel 43 can be injected into the connection area between the sleeve 23 and the support column 12 through the second output hole 415.

[0053] The use process of a folding structure suitable for a folding screen provided by the utility model is as follows:

[0054] During use, when the hinge structure becomes sluggish or even stiff, the end cover 11 is removed, and an inner hexagonal wrench is inserted into the inner hexagonal groove 45, and the inner hexagonal wrench is manually controlled to rotate, and the torque is transmitted to the rotating shaft 41. When the rotating shaft 41 obtains torque drive, the torque is transmitted to the limit block 49 through the connecting bar 47, driving the cylindrical cam 48 to rotate, so that the cylindrical cam 48 moves longitudinally inside the compression chamber 414, and drives the first piston 44 to move synchronously. When the first piston 44 moves upward, the external air enters the compression chamber 414 through the input hole 42, and when the first piston 44 moves downward, the The air inside the compression chamber 414 is compressed, and the compressed air inside the compression chamber 414 is guided to the inside of the airbag 31 through the connecting tube 32, so that the airbag 31 expands and deforms, and applies a driving force from the contact surface after the hinge structure is folded, to assist the folding screen to open, and the airbag 31 will not cause damage to the screen. At the same time, the compressed air inside the compression chamber 414 is also guided to the inside of the injection channel 43 through the connecting hole 412, driving the injection channel 43 to slide inside the injection channel 43, and the lubricating oil filled into the injection channel 43 can be injected into the active point of the hinge structure through the second output hole 415.

[0055] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. A folding structure suitable for a folding screen, characterized in that: include: A support assembly (1), wherein the support assembly (1) is provided with two groups of opening and closing assemblies (2) which can rotate relative to the support assembly (1), the opening and closing assemblies (2) are provided with expansion assemblies (3), an air supply assembly (4) is provided inside the support assembly (1), the air supply assembly (4) is connected to the expansion assembly (3) and can cause the expansion assembly (3) to expand and deform, and the expansion assembly (3) is connected to the opening and closing assembly (2) and can drive the opening and closing assembly (2) to rotate; The gas delivery assembly (4) comprises a compression chamber (414) disposed inside the support column (12), a mounting ring (46) fixedly disposed inside the compression chamber (414), and a rotating shaft (41) rotatably disposed inside the mounting ring (46), and further comprises a hexagonal groove (45) disposed at the top end of the rotating shaft (41); The gas delivery assembly (4) further comprises a cylindrical cam (48) arranged inside the compression chamber (414) and a stop block (49) slidably arranged inside the cylindrical cam (48), a connecting strip (47) fixedly arranged at the bottom end of the rotating shaft (41) and a first piston (44) fixedly arranged at the bottom of the cylindrical cam (48), wherein the end of the connecting strip (47) passes through the cylindrical cam (48) and is fixedly connected to the stop block (49); The gas delivery assembly (4) further comprises an input hole (42) formed at the bottom of the support column (12) and a first one-way valve arranged inside the input hole (42), as well as a first output hole (33) formed at the outer wall of the support column (12) and a second one-way valve arranged inside the first output hole (33).

2. A folding structure suitable for a folding screen according to claim 1, characterized in that: The support assembly (1) comprises a support column (12) and an end cover (11) arranged at the top end of the support column (12), and also comprises a limiting ring (13) sleeved on the support column (12).

3. The folding structure suitable for a folding screen according to claim 2, characterized in that: The opening and closing assembly (2) comprises a movable plate (21) and a sleeve (23) fixedly arranged on one side of the movable plate (21); the sleeve (23) is rotatably connected to the support column (12) and further comprises a mounting groove (22) arranged on the other side of the movable plate (21).

4. The folding structure suitable for a folding screen according to claim 3, characterized in that: The expansion assembly (3) comprises an air bag (31) fixedly arranged on adjacent surfaces of two sets of movable plates (21), and also comprises a connecting pipe (32) connecting the air bag (31) and the first output hole (33).

5. The folding structure suitable for a folding screen according to claim 4, characterized in that: The gas delivery assembly (4) further comprises an injection channel (43) provided inside the support column (12), a second piston (413) slidably provided inside the injection channel (43), a connecting hole (412) provided between the injection channel (43) and the compression chamber (414), and a second output hole (415) provided on the outer wall of the support column (12); the injection channel (43) can be filled with lubricating oil.

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