WO2018209924A1

WO2018209924A1 - Fresnel screen packaging device

Info

Publication number: WO2018209924A1
Application number: PCT/CN2017/114360
Authority: WO
Inventors: 余婷; 贾昌明; 曹秀燕
Original assignee: 青岛海信电器股份有限公司
Priority date: 2017-05-18
Filing date: 2017-12-04
Publication date: 2018-11-22

Abstract

A Fresnel screen packaging device, said device comprising: a box body (1), and a cushion assembly (3) and an arc-shaped support pad which are disposed at an inner portion of the box body (1), the cushion assembly (3) and the arc-shaped support pad being arranged in sequence; a surface of the arc-shaped support pad which faces the cushion assembly (3) is configured as a concave curved surface, while a surface of the cushion assembly (3) which faces the arc-shaped support pad is configured as a convex curved surface, the curvature of the concave curved surface of the arc-shaped support pad being the same as the curvature of the convex curved surface of the cushion assembly (3); a space between the curved surface of the arc-shaped support pad and the curved surface of the cushion assembly (3) is used for placing a Fresnel screen (4). When packaging a Fresnel screen, the packaging device bends the Fresnel screen from a flat plane to an arc or cylindrical shape under the cooperation of the cushion assembly and the arc-shaped support pad, thus greatly reducing the maximum length of the Fresnel screen, and further greatly reducing the maximum length of the package, thereby reducing the difficulty in transporting Fresnel screen packages.

Description

Title of Invention: A Fresnel Screen Packaging Device

[0001] This application claims to be filed on May 18, 2017, the Chinese Patent Office, application number 201720553294.X, the application for the name of "a Fresnel screen packaging device" Chinese patent application and submitted on May 18, 2017 The priority of the Chinese Patent Application No. 201720553304.X, the entire disclosure of which is incorporated herein by reference.

Technical field

[0002] The present application relates to the field of screen packaging technologies, and in particular, to a Fresnel screen packaging device.

Background technique

[0003] Due to the widespread use of various electronic products such as projectors, the use of projection screens is also becoming more and more widespread, and the projection screen is mainly composed of a Fresnel screen, other auxiliary support fixtures and a frame, wherein the auxiliary fixtures and The border is used to support the entire Fresnel screen. In the related art, the entire screen is packaged and transported after being fixed, that is, the Fresnel screen is mounted on the auxiliary support fixture and the frame, and then packaged in the same package.

technical problem

Problem solution

Technical solution

[0004] The present application provides a Fresnel screen packaging device, the device comprising: a case, a pad assembly disposed inside the case, and a curved support pad, wherein

[0005] the pad assembly and the curved support pad are sequentially disposed;

[0006] The curved support pad is disposed on a side of the pad assembly as a concave curved surface, and the pad assembly is disposed on a side of the curved support pad as a convex curved surface, the curved support The curvature of the concave curved surface of the pad is consistent with the curvature of the convex curved surface of the pad assembly;

[0007] A space between the curved surface of the curved support pad and the curved surface of the pad assembly is used to place a Fresnel screen Advantageous effects of the invention

Brief description of the drawing

DRAWINGS

[0008] In order to explain the technical solutions of the present application more clearly, the drawings used in the embodiments will be briefly described below, and it will be apparent to those skilled in the art that no creative labor is required. Further drawings can also be obtained from these drawings.

1 is a schematic structural diagram of a projection screen package provided by a related art;

[0010] FIG. 2 is a schematic structural diagram of a Fresnel screen package according to an embodiment of the present application;

3 is a schematic exploded view of a Fresnel screen packaging device according to an embodiment of the present application;

4 is a schematic diagram of a Fresnel screen curved into an arc shape according to an embodiment of the present application;

[0013] FIG. 5 is a schematic structural diagram of a first concave curved support pad in a Fresnel screen packaging device according to an embodiment of the present application;

[0014] FIG. 6 is a schematic view showing the installation of a first concave curved support pad and a second set of a Fresnel screen packaging device according to an embodiment of the present application;

7 is a schematic structural view of a first concave arc-shaped support pad and a second set of a Fresnel screen packaging device according to an embodiment of the present application;

[0016] FIG. 8 is a schematic structural diagram of a convex arc-shaped pad and a first set of boxes in a Fresnel screen packaging device according to an embodiment of the present application;

[0017] FIG. 9 is a schematic structural diagram of another Fresnel screen packaging device according to an embodiment of the present application;

10 is a schematic exploded view of another Fresnel screen packaging device according to an embodiment of the present disclosure; [0019] FIG. 11 is a cylindrical shape of another Fresnel screen packaging device according to an embodiment of the present application. Schematic diagram of the explosion structure of the gasket;

12 is a schematic structural diagram of a connecting plate in another Fresnel screen packaging device according to an embodiment of the present application.

[0021] FIG. 13 is a schematic diagram showing the installation structure of a cylindrical gasket in another Fresnel screen packaging device according to an embodiment of the present application;

[0022] FIG. 14 is a schematic diagram of a mounting structure of a cylindrical gasket and a Fresnel screen in another Fresnel screen packaging device according to an embodiment of the present application; [0023] FIG. 15 is a schematic structural diagram of a second concave curved support pad and a second set of a Fresnel screen packaging device according to an embodiment of the present application;

[0024] FIG. 16 is a schematic structural diagram of a second concave arc-shaped support pad and a second set of boxes in another Fresnel screen packaging device according to an embodiment of the present application;

[0025] FIG. 17 is a schematic structural view of a concave curved pad in the Fresnel screen packaging device according to an embodiment of the present invention after being assembled with the first casing;

1 to 17, the specific symbols are: 1-box, 11-first box, 12-second box, 2-first concave curved support pad, 21-arc pallet, 211 - baffle, 22-support pad, 221-semi-arc support, 222-separator, 3-liner assembly, 31-convex curved pad, 311-arc, 32-cylindrical pad, 321-connector plate, 322-cylindrical subpad, 323-joint slot, 324-stopper, 4- Fresnel screen, 5-second concave arc support pad, 5 1-curved support, 511 - first limiting plate, 6-concave curved pad, 61-concave curved body, 611-second limiting plate

Embodiments of the invention

[0027] In the description of the embodiments of the present application, the terms "long side", "short side", "upper", "lower", "inside", "outer", "horizontal", etc. are based on Frey in the drawing. The screen, taking the rectangular Fresnel screen as an example, the largest dimension of the Fresnel screen is the long side, and the second largest side of the Fresnel screen is the short side.

1 is a schematic structural view of a screen packaging and packaging device in the related art. As shown in FIG. 1 , the inside of the package box 01 is provided with a horizontal support pad, and the projection screen 04 is packaged. First, the projection screen 04 is horizontally placed on the horizontal support pad, and the horizontal support pad can not only support and fix the projection screen 04. It is also possible to prevent the projection screen 04 from hitting the package 01, causing damage to the projection screen 04, and then packaging the package 01 to finally form a flat package.

[0029] Since the Fresnel screen is first fixed horizontally on a horizontal support pad in a package structure, and then packaged, the final package structure is very large. Taking a 100-inch Fresnel screen as an example, the Fresnel screen size is 2232*1263mm (ignoring the thickness of the curtain), plus the packaging protection material, the size after the whole package is larger, about 2350*1400*120mm, making The flat area is very large, which makes the handling of the projection screen package difficult.

[0030] Referring to FIG. 2, FIG. 3, FIG. 2 is a schematic structural diagram of a Fresnel screen package according to an embodiment of the present application. Figure. FIG. 3 is a schematic diagram of an explosion structure of a Fresnel screen packaging device according to an embodiment of the present application.

[0031] As shown in FIG. 3, the Fresnel screen packaging device provided by the embodiment of the present application includes: a box body 1, a pad assembly 3 disposed inside the box body 1 and a curved support pad, wherein

[0032] The pad assembly 3 and the arcuate support pads are sequentially disposed, and as shown, in the normal placement state, the pad assembly 3 and the arcuate support pads are sequentially disposed in the direction of gravity. The curved support pad supports the fixed pad assembly 3, and the Fresnel screen 4 is located between the curved support pad and the pad assembly 3.

[0033] In order to facilitate the placement of the Fresnel screen 4, the curved support pad is provided with a concave curved surface toward one side of the pad assembly 3, and the pad assembly 3 is provided with a convex curved surface toward one side of the curved support pad, curved The curved surface of the concave curved surface of the support pad is consistent with the curvature of the convex curved surface of the cushion assembly 3. The space between the curved surface of the curved support pad and the curved surface of the pad assembly 3 is used to place the Fresnel screen, that is, the curved support pad and the pad assembly 3 can both deform the Fresnel screen 4 and also The Neel screen 4 provides protection against external damage to the Fresnel screen 4.

[0034] packaging the Fresnel screen 4吋, the Fresnel screen 4 is curved along with the concave curved surface of the curved support pad and conforms to the concave curved surface of the curved support pad, and the pad assembly 3 is used to fix Fresnel Screen 4, which ensures the curvature of the Fresnel screen 4.

[0035] In detail, the curved support pad and the pad assembly 3 are disposed opposite each other in the vertical direction, and the case 1 is disposed outside the curved support pad and the pad assembly 3, and the curved support pad faces the pad assembly 3 One side is provided with an inwardly recessed curved surface, and the pad assembly 3 is provided with an outwardly convex curved surface toward one side of the curved support pad, the curvature of the concave curved surface of the curved support pad and the curvature of the convex surface of the pad assembly 3 Consistently, a space for accommodating the Fresnel screen 4 is formed, thereby deforming the Fresnel screen 4 into an arc having a certain curvature.

[0036] wherein the curved support pad may be on the upper side of the inside of the case 1, or on the lower side of the inside of the case 1. In the normal placement state, after the Fresnel screen 4 is subjected to gravity, if the curved support pad is on the lower side of the casing 1, the viewing surface of the Fresnel screen 4 or the side opposite to the viewing surface, the force can be applied. The concave curved surface of the curved support pad is transmitted to the curved support pad; if the pad assembly 3 is on the lower side of the interior of the casing 1, the viewing surface of the Fresnel screen 4 or the side opposite to the viewing surface can be stressed After the curved surface of the pad assembly 3 is transmitted to the pad assembly 3, the force is applied to the screen area, so that the force per unit area on the Fresnel screen is small, and the Fresnel screen 4 can be reduced. .

[0037] On the other hand, since the curved support pad and the pad assembly 3 are disposed opposite each other in the vertical direction, the Fresnel screen 4 a viewing surface and a second side disposed opposite the viewing surface, respectively toward the curved support pad and the pad assembly 3, or toward the pad assembly 3 and the curved support pad, respectively, such that the active surface thereof is perpendicular to the direction of gravity, and The orientation of the prisms on the Fresnel screen 4 is parallel. Therefore, when the Fresnel screen 4 is curved into a curved shape, the prism is not damaged, thereby ensuring the normal display effect of the Fresnel screen 4 after installation. It should be noted that the viewing surface of the Fresnel screen 4 refers to the side of the Fresnel screen 4 facing the user in the working state.

[0038] As shown in FIG. 4, the Fresnel screen 4 is placed flat, the longest side is L, and the Fresnel screen 4 is curved according to a certain curvature, and the Fresnel screen 4 has a radius of curvature R, a string. The length is x, the chord height is y, and the 吋 is curved. The Fresnel screen 4 can be bent according to the curvature of the curved support pad, that is, the known arc length L and radius R, and the angle & the chord length X and the chord height _{y are obtained.} From this, it can be seen that the maximum size of the Fresnel screen 4 is changed from the long side L to the chord length x, and the size is greatly reduced. According to the actual situation, such as the size of the box, the optimal radius R is determined, so that the maximum size (chord length X) of the Fresnel screen 4 reaches an optimum value.

[0039] In some embodiments of the present application, the casing 1 includes a first casing 11 and a second casing 12, the gasket assembly 3 is disposed inside the first casing 11, and the curved support cushion is disposed in the second casing. 12 internal. In some implementations, the second set of boxes 12 can be sleeved in the first set of boxes 11, and the second set of boxes 12 can also be sleeved outside the first set of boxes 11, and the first set of boxes can be smashed, as long as the first set Set the box ^ to open up. Alternatively, the first casing 11 may be placed on the upper surface of the second casing 12, and the contact surface of the first casing 11 and the second casing 12 may be fixed by tape, and the casing 1吋 may be smashed, as long as the first casing 11 is It can be separated from the second set of boxes 12. Alternatively, the case 1 may be a whole body, and one side of the case 1 may be smashed, packaged, and the arc support pad, the Fresnel screen 4 and the pad assembly 3 may be fixed in sequence.

[0040] In some embodiments, in order to facilitate the capping of the first box 11 and the second box 12, the side wall of the short side of the first box 11 and the side wall of the short side of the second box 12 may be located. The handle is set on the top of the Fresnel screen, and the first set of boxes 11 and the second set of boxes 12 are moved by the handles, saving labor and effort.

[0041] In the embodiment of the present application, the arc-shaped support pad is a first concave curved support pad 2, the pad assembly 3 is a convex curved pad 31, and the first concave curved support pad 2 supports the convex curved pad 31. . In detail, the first concave curved support pad 2 is disposed toward a side of the convex curved pad 31 as a concave curved surface, and correspondingly, the convex curved pad 31 faces one side of the first concave curved support pad 2. Provided as a convex curved surface, the curvature of the convex curved surface is consistent with the curvature of the concave curved surface of the first concave curved support pad 2; the opposite sides of the Fresnel screen 4 and the first concave curved support respectively The concave curved surface of the pad 2 and the convex curved surface of the convex curved pad 31 are in conflict with each other, so that the Fresnel screen 4 is in the first A concave curved support pad 2 is curved from the plane into a curved shape having a certain curvature in cooperation with the convex curved pad 31. Since the projected area of the Fresnel screen 4 in the curved state is smaller than the projected area in the planar state, the size of the Fresnel screen package is reduced.

[0042] In some implementations, as shown in FIG. 5, the first concave curved support pad 2 includes an arcuate support 21 and a support pad 22 supporting the fixed arcuate support 21 for supporting The curved pallet 21 forms a concave curved surface. In detail, the curved plate 21 is disposed on a side of the convex curved pad 31 as a concave curved surface, and the Fresnel screen 4 is placed on the curved surface of the curved support plate 21, and is placed on the curved surface. The plate 21 is used to support and fix the Fresnel screen 4. In order to ensure the curvature of the Fresnel screen 4, the curvature of the concave curved surface of the curved pallet 2 coincides with the curvature of the convex curved surface of the convex curved gasket 31.

[0043] The support pad 22 is used to support the fixed curved plate 21. To achieve this, the curved plate 21 is provided with a convex curved surface toward one side of the support pad 22, and the support pad 22 faces the curved support. One side of the plate 21 is provided as a concave curved surface, and the curvature of the convex curved surface of the curved plate 21 coincides with the curvature of the concave curved surface in the support pad 22.

[0044] wherein the curved support plate 21 and the support pad 22 supporting the fixed curved support plate 21 may be a separate structure or may be integrally formed. In the split plate 21 and the support pad 22 being in a separate structure, the surface of the support pad 22 in contact with the curved plate 21 is a curved surface, and therefore, the surface of the support pad 22 in contact with the case 1 is a flat surface. And the side that is in contact with the vertical side of the second casing 12 and the side that is in contact with the bottom surface of the second casing 12 are perpendicular to each other, so that the curved pallet 21 can form a predetermined curvature under the support of the support cushion 22. The curved surface.

[0045] As shown in FIG. 6, the support pad 22 is located between the curved plate 21 and the inner wall of the second casing 12. The support pad 22 is in contact with the inner wall of the second casing 12 for supporting the fixed arc. Pallet 21. Fixing the support pad 22 and the curved plate 21 in the second casing 12 can improve the stability of the first concave curved support pad 2, and prevent the transportation of the Fresnel screen 4 in the casing, resulting in Fresnel Damage to the screen.

[0046] In some embodiments, the Fresnel screen 4 is attached to a concave curved surface of the curved pallet 21 such that the long side of the Fresnel screen 4 is reduced in size, while the short side of the Fresnel screen 4 is The size is constant, so the dimension of the curved pallet 21 in the width direction may be greater than or equal to the short side dimension of the Fresnel screen 4, and the arc length of the curved pallet 21 may be greater than or equal to the long side dimension of the Fresnel screen 4. .

[0047] In some embodiments, the first concave curved support pad 2 may also be an integral concave curved plate, and the concave curved plate is disposed to have a concave curved surface toward one side of the convex curved pad 31. The Fresnel screen 4 is placed on the concave curved surface of the concave curved plate, and the concave curved plate is fixed on the inner wall of the second casing 12, and the concave curved plate supports the solid With the Fresnel screen 4, the Fresnel screen can also be curved from a plane into an arc. Wherein, the support pad 22 and the curved support plate 21 are separate structures, and the support pad 22 may be a single integral structure or a plurality of components that cooperate with each other, and are not specifically limited herein. As long as the support pad enables the curved plate to form a curved surface that is curved with a predetermined curvature.

[0048] In some embodiments of the present application, the support pad 22 includes a horizontal partition 222 disposed parallel to the short side of the Fresnel screen and two curved brackets symmetrically disposed with respect to the horizontal partition 222, two curved shapes The wire of the bracket is perpendicular to the short side of the Fresnel screen 4. The curved bracket includes at least two sets of semi-arc support bodies 221 parallel to the long sides of the second sleeve 12, which are disposed opposite to the curved pallets 21, and the semi-arc-shaped support bodies 221 and the inner walls of the second casing 12 Inconsistent. The semi-arc support 221 is for supporting the fixed curved plate 21, and therefore, the semi-arc support 221 is disposed toward the one side of the curved plate 21 as a concave curved surface, and the concave curved surface of the semi-arc support 211 The convex curved surface of the curved pallet 21 is in mating contact, that is, the semi-arc support 221 supports the fixed curved pallet 21. In some implementations, the number of the semi-arc support bodies 221 may be four, so that the force is uniform, and the support stability is ensured.

[0049] In some implementations, the curved bracket may also be a one-piece curved support frame, and the curved support frame is disposed on a side of the curved pallet 21 as a concave curved surface, and the concave support surface of the curved support frame is The convex curved surface of the curved pallet 21 is completely mated with the contact, and the two symmetrically arranged curved support brackets support the fixed curved pallet 21.

In the embodiment of the present application, a side surface of the horizontal partition plate 222 is in contact with the convex curved surface of the curved plate 21 to support the fixed curved plate 21. The horizontal partition 222 is in mating contact with the convex curved surface of the curved pallet 21 to withstand the pressure at the center of the curved pallet 21. For the purpose of support, the horizontal partition 222 is shaped to fit the shape of the curved support 21 and is disposed at an angle to the semi-arc support 221 . In some implementations, the horizontal partition 222 is parallel to the short side of the Fresnel screen 4, and the horizontal partition 222 is a rectangular parallelepiped, and the horizontal partition 222 is located at the most concave position of the curved support 21. The horizontal partition 222 is provided to reduce the length of the semi-arc support 221 in the longitudinal direction of the casing 1, and the same can also reduce the impact force from the bottom of the second casing 12. The support pad 22 adopts a split structure, which can reduce the weight of the support pad on the one hand, thereby reducing the weight of the package; on the other hand, the packaging material can be saved, thereby reducing the packaging cost.

[0051] Using the cymbal, as shown in FIG. 7, the curved pallet 21 can be fixed to the support pad 22, and the two are combined into one body, and the two are integrally placed in the second casing 12. The curved plate 21 may also be glued to the upper arc surface of the support pad 22, and the lower surface of the support pad 22 may be glued to the inner wall of the second casing 12. [0052] In the embodiment of the present application, in order to fix the Fresnel screen 4 curved into an arc shape, the long side of the curved pallet 21 is provided with a finite edge, and the semi-arc support 221 near the short side of the curved pallet 21 - There are limit sides on the side. The limiting edge provided in the direction of the pad assembly 3 at the long side of the curved pallet 21 serves to define the movement of the Fresnel screen 4 in the short side direction of the Fresnel screen 4, and the semi-arc support 221 is in the arc The outer side of the short side of the shaped plate 21 is provided with a limiting edge for restricting the movement of the curved supporting plate 21 along the longitudinal direction of the Fresnel screen 4, and the limiting edge can be raised above the curved supporting plate 21 to bring Fresnel The screen 4 is defined in the curved pallet 21 to prevent the Fresnel screen 4 from being shaken.

[0053] In some implementations, the limit edge may be provided only at the long side of the curved pallet 21, and only the semi-arc support 221 is provided to define the Fresnel screen 4 in the short side direction of the Fresnel screen. The limiting edge of the upper moving edge; the limiting edge may also be disposed around the curved supporting plate 21, and the semi-arc shaped supporting body 221 is not disposed; the limiting edge may also be disposed around the supporting pad 22, and the arc is curved. The support plate 21 is not provided; the limit side is also provided around the curved support plate 21 and the support pad 22, and is not limited to the limited structure provided by the present application.

[0054] In some implementations, the limiting edge may be a baffle, and the baffle 21 is disposed along the curved edge of the curved plate 21, and also the semi-arc support 221 near the short side of the curved plate 21. - Set the bezel on the side. It may also be a limit post, and a plurality of limit posts are evenly arranged along the curved edge of the curved plate 21. It can also be a limit pin, a limit block, etc., and is not limited to the limit side provided by the present application.

[0055] In some embodiments of the present application, the convex curved pad 31 may be an integral structure, and may also include at least two curved bodies 311 parallel to the long sides of the Fresnel screen 4, as shown in FIG. Show. The curved body 311 is disposed on the one side of the curved plate 21 as a convex curved surface, and the curvature of the convex curved surface of the curved body 311 is consistent with the concave curvature of the curved plate 21, and the curved body 311 is fixed to the first set of boxes. On the inner wall of 11. Mounting 吋, the curved body 311 is glued on the inner wall of the first set of boxes 11, and the convex curved surface of the curved body 311 is pressed on the Fresnel screen 4 to ensure the curvature of the Fresnel screen 4; The Fresnel screen 4 is placed on the curved pallet 21, then the convex curved gasket 31 is placed, and finally the first casing 11 is placed for packaging. The packaging sequence given in this application is only an exemplary implementation. The manner is not intended to limit the application.

[0056] The convex curved pad 31 adopts a split structure, on the one hand, the weight of the convex curved pad can be reduced, thereby reducing the weight of the package; on the other hand, the packaging material can be saved, and the processing is convenient, thereby reducing the packaging cost. In some embodiments, the number of arcuate bodies 311 can be three.

[0057] In some implementations, the curvature of the first concave curved support pad 2 may be uniform or may be a change For example, the curvature at one end of the curved surface of the first concave curved support pad 2 decreases to the lowest point of the curved surface of the first concave curved support pad 2, and the curvature at the lowest point of the curved surface of the first concave curved support pad 2 is first The concave curved support pad 2 has an increasing curvature at the other end of the curved surface, that is, the curvature of the first concave curved support pad 2 changes to a large curvature - a slightly smaller curvature - a large curvature change to reduce the intermediate stress.

[0058] In the embodiment of the present application, the apparatus provided by the present application further includes a first film and a second film, one side of the first film is attached to the concave curved surface of the curved plate 21, and the other side is coupled with Fresnel. One side of the screen 4 is fitted, one side of the second film is attached to the convex curved surface of the convex curved pad 31, and the other side is attached to the other side of the Fresnel screen 4. The first film and the second film protect the Fresnel screen 4, preventing the Fresnel screen 4 from being scratched by the curved pad 21 or the convex curved pad 31.

[0059] In some implementations, the arcuate body 311 in the semi-arc support 221, the horizontal partition 222, and/or the convex arc liner 31 in the first concave curved support pad 2 may be hollowed out, Used to place small parts, save space, increase utilization, and reduce the size of the box 1.

[0060] In one embodiment, in packaging the Fresnel screen, the curved pallet 21 is first glued to the semi-arc support 221 and the horizontal partition 222 constituting the support cushion 22, both of which are Forming a whole, forming a first concave curved support pad 2; placing the first concave curved support pad 2 in the second set 12; and placing the Fresnel screen 4 on the curved support 21 On the concave curved surface, the Fresnel screen 4 is curved into a curved shape with the curved surface, and is adhered to the curved surface; and the curved body 311 constituting the convex curved pad 31 is uniformly adhered to the first casing 11 to be fixed. Finally, the first set of boxes 11 is placed on the second set of boxes 12, and the convex curved surface of the curved body 311 is pressed against the Fresnel screen 4. The Fresnel screen 4 is bent into a curved arc with a curved arc in combination with the curved body 311 and the curved plate 21, which greatly reduces the maximum size of the Fresnel screen, thereby reducing the Philippine The size of the Nyer screen package reduces the difficulty of handling Fresnel screen packages.

FIG. 9 is a schematic structural diagram of another Fresnel screen package according to an embodiment of the present application, and FIG. 10 is another Fresnel screen packaging device according to an embodiment of the present application. Schematic diagram of the explosion structure.

As shown in FIG. 10, the Fresnel screen packaging device provided by the embodiment of the present application includes: a case 1; a pad assembly 3 disposed inside the case 1 and an arc support pad, wherein

[0063] The pad assembly 3 and the arc-shaped support pad are sequentially disposed, as shown in the figure, in the normal placement state, sequentially arranged in the direction of gravity, the curved support pad supports the fixed pad assembly 3, and the Fresnel screen 4 is located Curved support pad Between the pad assembly 3.

[0064] In order to facilitate the placement of the Fresnel screen 4, the curved support pad is provided with a concave curved surface toward one side of the pad assembly 3, and the pad assembly 3 is provided with a convex curved surface toward one side of the curved support pad, curved The curved surface of the concave curved surface of the support pad is consistent with the curvature of the convex curved surface of the cushion assembly 3. The space between the curved surface of the curved support pad and the curved surface of the pad assembly 3 is used to place the Fresnel screen 4, that is, the curved support pad and the pad assembly 3 can both deform the Fresnel screen 4, and can also The Fresnel screen 4 provides protection against external damage to the Fresnel screen 4.

[0065] packaging the Fresnel screen 4吋, placing the Fresnel screen 4 between the curved support pad and the pad assembly 3, and the Fresnel screen 4 is curved and curved with the concave surface of the curved support pad The fit, and the pad assembly 3 is used to fix the Fresnel screen 4, ensuring the curvature of the Fresnel screen 4.

[0066] In the embodiment of the present application, in the embodiment of the present application, the box 1 includes a first sleeve 11 and a second sleeve 12, and the pad assembly 3 is disposed inside the first sleeve 11, and the arc support pad is disposed on The second set of boxes 12 is internal. In some implementations, the second set of boxes 12 can be sleeved in the first set of boxes 11 to smash the box 1 吋, as long as the first set of boxes 11 is smashed upwards or the second set of boxes 12 is slammed downwards Just fine. Alternatively, the case 1 may be a whole body, and one side of the case 1 may be smashed, packaged, and the arc support pad, the Fresnel screen 4 and the pad assembly 3 may be fixed in sequence.

[0067] In the embodiment of the present application, the curved support pad is a second concave curved support pad 5, and the pad assembly 3 includes a cylindrical pad 32 and a concave curved pad 6, a concave curved pad 6 and a second The concave curved support pads 5 are oppositely disposed on both sides of the cylindrical gasket 32. In detail, the second concave curved support pad 5 is provided with a concave curved surface toward one side of the cylindrical gasket 32, and the concave curved gasket 6 is provided with a concave curved surface toward one side of the cylindrical gasket 32, second The curvature of the concave curved surface of the concave curved support pad 5, the curvature of the concave curved surface of the concave curved pad 6 coincides with the curvature of the side of the cylindrical spacer 32 to the Fresnel screen curled on the side of the cylindrical spacer 32 Carry out the limit.

[0068] In some implementations, the concave curved pad 6 and the second concave curved support pad 5 are combined to form a support having a through hole in the middle, and the outer surface is fitted with a cylindrical pad 32 of the Fresnel screen 4. Embedded in the through hole, the cylindrical spacer 32 bends the Fresnel screen 4 from a plane into a cylindrical shape, and the concave curved pad 6 and the second concave curved support pad 5 serve to support the Fresnel screen 4.

[0069] In the normal packaging state, the second concave curved support pad 5, the cylindrical pad 32, the concave curved pad 6 are sequentially disposed in the direction of gravity, and the viewing surface of the Fresnel screen 4 faces the cylindrical pad Or facing away from the cylindrical liner, The action surface is perpendicular to the direction of gravity and parallel to the direction of the prism on the Fresnel screen 4, so that the Fresnel screen 4 is curved into a curved shape, and the prism is not damaged, thereby ensuring the Fresnel screen. 4 normal display effect after installation.

[0070] In some implementations, as shown in FIG. 11, the cylindrical gasket 32 includes a web 321 and a plurality of cylindrical subgaskets 322 uniformly disposed along the axial direction of the cylindrical gasket 32, wherein:

[0071] The cylindrical sub-pad 322 is provided with a connecting groove 323. The direction of the groove of the connecting groove 323 is perpendicular to the central axis of the cylindrical sub-pad 322, and the connecting plate 321 is engaged in the connecting groove 323 through the connecting plate 321 A plurality of cylindrical sub-pads 322 are connected. The connecting plate 321 connects the plurality of cylindrical sub-pads 322 to form a cylindrical gasket 32 for facilitating the Fresnel screen 4 to be wound around the cylindrical liner 32. In some implementations, the number of cylindrical sub-pads 322 can be four.

[0072] In the embodiment of the present application, the cylindrical gasket 32 is composed of a plurality of cylindrical sub-pads 322, on the one hand, the weight of the cylindrical gasket can be reduced, thereby reducing the weight of the package; on the other hand, the processing material can be saved. , easy to process, effectively reduce packaging costs.

[0073] In some implementations, a plurality of cylindrical subgaskets 322 may also be glued together to form a cylindrical liner 32. It is also possible to process the cylindrical liner 32 into a one-piece liner to wind the Fresnel screen 4 directly onto the liner. The structure of the cylindrical spacer can be selected by the user according to actual needs, processing conditions, and the like, and is not limited to the structure provided by the embodiment of the present application.

[0074] In some implementations, the two ends of the connecting plate 321 are respectively provided with a limiting member for restricting the left and right sliding of the cylindrical sub-pad 322. The sliding of the cylindrical sub-pad 322 easily drives the movement of the Fresnel screen 4, causing the Fresnel screen 4 to be damaged during handling and transportation, and the limiting member can effectively limit the sliding of the cylindrical sub-pad 322, thereby preventing The movement of the cylindrical sub-pad 322 causes scratching of the surface of the Fresnel screen 4 and the like.

[0075] In some implementations, as shown in FIG. 12, a plurality of pairs of limiting members 324 may be evenly disposed on the connecting plate 321, and the spacing between each pair of the two limiting members 324 is greater than Or equal to the thickness of the cylindrical sub-pad 322. As shown in FIG. 13, a pair of limiting members 324 are disposed on the connecting plate 321, and each pair of limiting members 324 is used to restrict the left and right sliding of a cylindrical sub-pad 322, thereby limiting all the cylindrical sub-pads. 322 sliding.

[0076] In some implementations, the cylindrical sub-pad 322 can also be glued to the connecting plate 321 to prevent Sliding of the cylindrical sub-pad 322. It is also possible to increase the roughness of the joint between the connecting groove 323 and the connecting plate 321 on the cylindrical sub-pad 322. For example, the connecting plate 321 is made of honeycomb paperboard, and the friction between the connecting groove 323 and the connecting plate 321 is large, thereby The difficulty of moving the cylindrical sub-pad 322 is increased.

In some implementations, the limiting member 324 can be a limiting baffle, and a plurality of limiting baffles are uniformly disposed on the connecting plate 321 , and the limiting baffles are disposed perpendicular to the long sides of the connecting plate 321 . The limiting member 324 can also be a limiting column. The limiting column is arranged in a row on the connecting plate 321 . Each column of the limiting column includes at least two spaced apart limiting columns, and the arrangement direction of each column of the limiting columns is perpendicular to The long side of the connecting plate 321 is connected. The position of the cylindrical sub-pad 322 is defined by the limiting post, and only two limiting posts can be arranged for each column of the limiting post, which saves the processing material on the one hand, saves labor and labor, can effectively reduce the packaging cost; on the other hand, can reduce The weight of the connecting plate to reduce the weight of the package

[0078] In the embodiment of the present application, in processing the cylindrical gasket 32, considering the longest side dimension of the Fresnel screen 4, the outer circumference dimension of the cylindrical gasket 32 is larger than the maximum size of the Fresnel screen 4. That is, the Fresnel screen 4 is wound around the cylindrical liner 32, and there is a moderate gap between the two short sides of the Fresnel screen 4 to prevent the edge friction of the Fresnel screen 4 from being damaged, as shown in FIG.

[0079] In some implementations, the user may set the gap size between the cylindrical gasket 32 and the Fresnel screen 4 to an arbitrary value according to factors such as the package volume, the processing conditions, and the like, which are not specifically limited herein.

[0080] In the embodiment of the present application, as shown in FIG. 15 and FIG. 16, the second concave curved support pad 5 includes at least two curved support bodies 51 parallel to the end surface of the first cylindrical spacer 32, and the curved support The body 51 is fixed in the second casing 12. The curved support body 51 supports the fixed cylindrical gasket 32 and also protects the Fresnel screen 4 from damage caused by the Fresnel screen 4 directly contacting the second casing 12. In some implementations, the number of curved supports 51 can be three.

[0081] In some implementations, the second concave curved support pad 5 may be a one-piece curved support pad, and the curved support pad is disposed on a side of the cylindrical pad 32 as a concave curved surface, that is, a curved support pad. The concave curved surface is in contact with the Fresnel screen 4, and the force is relatively uniform. The embodiment of the present application adopts a split-type curved support pad, which can not only play the role of support and fixation, but also reduce the weight of the structure and is easy to process. The user can select the second concave curved support pad 5 according to actual needs, processing conditions, etc., and is not limited to the structure provided by the present application.

In the embodiment of the present application, the curved support body 51 near the end surface of the cylindrical gasket 32 is provided with a first limiting plate 511, and the first limiting plate 511 is in contact with the end surface of the cylindrical gasket 32. The first limiting plate 511 can be limited The long side of the cylindrical spacer 32 prevents the cylindrical sub-pad 322 from moving left and right, and also acts as a shield to prevent the 0-edge friction of the Fresnel screen 4 from being damaged.

[0083] In some implementations, the structure of the concave curved pad 6 may be the same as that of the second concave curved support pad 5. As shown in FIG. 17, the concave curved pad 6 includes at least two concave arc-shaped bodies 61 parallel to the short sides of the first sleeve 11, and the concave curved body 61 cooperates with the curved support body 51 to form a cylindrical hole, and The concave curved body 61 is fixed in the first casing 11. The concave curved body 61 cooperates with the curved support body 51 to form a cylindrical hole that matches the cylindrical gasket 32. The structure of the concave curved pad 6 may also be different from the structure of the second concave curved support pad 5, as long as the concave curved pad 6 is matched with the cylindrical pad 32, and the cylindrical pad 32 can be supported and fixed. .

In the embodiment of the present application, the concave arc 61 near the short side of the first casing 11 is provided with a second limiting plate 61 1 , and the second limiting plate 611 can limit the length of the cylindrical gasket 32 . On the side, it can also play a protective role to prevent the friction of the 0-edge of the Fresnel screen 4 from being damaged.

[0085] In some implementations, the curvature of the second concave curved support pad 5 may be uniform or may be varied, such as the curvature at one end of the curved surface of the second concave curved support pad 5 to the second concave curved shape. The curvature at the lowest point of the curved surface of the support pad 5 is decreasing, and the curvature at the lowest point of the curved surface of the second concave curved support pad 5 is increased to the curvature at the other end of the curved surface of the second concave curved support pad 5, that is, the second concave curved support pad The curvature of 5 changes to a large curvature - a slightly smaller curvature - a large curvature change to reduce the intermediate stress.

[0086] In the embodiment of the present application, the apparatus provided by the present application further includes a first film, a second film and a third film, one side of the first film is attached to the concave curved surface of the curved support body 51, and the other side is Adhering to one side of the Fresnel screen 4, one side of the second film is attached to the side of the cylindrical pad 32, and the other side is attached to the other side of the Fresnel screen 4, and one of the third film is attached. The side is in contact with the concave curved surface of the concave curved body 61, and the other side is attached to one side of the Fresnel screen 4. The first film, the second film and the third film protect the Fresnel screen 4, preventing the Fresnel screen 4 from being scratched by the curved support 51, the cylindrical liner 32 or the concave curved liner 6.

[0087] In some implementations, the curved support body 51 in the second concave curved support pad 5, the cylindrical sub-pad 322 in the cylindrical liner 32, and/or the concave curved pad 6 may be Hollow, used to place small parts, save space, improve utilization, and reduce the size of the box 1.

[0088] The Fresnel screen packaging device provided by the embodiment of the present application may be configured to firstly fit the Fresnel screen 4 and the concave curved surface of the curved support body 51 in the second casing 12 to ensure the Philippine The Neel screen 4 is curved with the curved surface; the cylindrical liner 32 is next placed in the Fresnel screen 4, and the Fresnel screen 4 is wound around the cylindrical liner 3. 2 surrounding the cylindrical shape, fixing the two short sides of the Fresnel screen 4 by tape; then fixing the concave curved body 61 in the first set 11; finally covering the first set 11 so that the first set The concave curved surface of the concave curved pad 6 in 11 is in contact with the Fresnel screen 4.

[0089] It is also possible to first surround the Fresnel screen 4 around the cylindrical liner 32 in a cylindrical shape, and fix the two short sides of the Fresnel screen 4 by tape bonding; secondly, the Fresnel screen 4 and the cylindrical lining The pad 32 is placed on the curved support body 51 in the second casing 12, and the Fresnel screen 4 contacts the concave curved surface of the curved support body 51; then the concave curved body 61 is fixed in the first casing 11 Finally, the first set of boxes 11 is finally covered such that the concave curved surface of the concave curved pad 6 in the first set of boxes 11 is in contact with the Fresnel screen 4. The rectangular Fresnel screen is thus curved into a cylindrical shape, which greatly reduces the maximum size of the Fresnel screen, thereby reducing the size of the Fresnel screen package and reducing the handling of the Fresnel screen package. Difficulty.

[0090] It should be noted that, in this context, relational terms such as "first" and "second" are used to distinguish one entity or operation from another entity or operation, and not necessarily required. Or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "including", "comprising" or "comprising" or "comprising" or "includes" or "includes" or "includes" Other elements, or elements that are inherent to such a process, method, item, or device. An element defined by the statement "comprising a ..." without further limitation does not exclude the existence of additional identical elements in the process, method, article or device that comprises the element.

The above description is only a specific embodiment of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments are obvious to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the application. Therefore, the application is not limited to the embodiments shown herein, but is to be accorded the broadest scope of the principles and novel features disclosed herein.

Claims

Claim

A Fresnel screen packaging device, comprising: a box body, a pad assembly disposed inside the box body, and a curved support pad, wherein

The pad assembly and the arcuate support pad are sequentially disposed;

The curved support pad is disposed on a side of the pad assembly as a concave curved surface, and the pad assembly is disposed on a side of the curved support pad as a convex curved surface, and the curved support pad is concave The curvature of the curved surface is consistent with the curvature of the convex surface of the cushion assembly;

The space between the curved surface of the curved support pad and the curved surface of the pad assembly is used to place a Fresnel screen.

The device according to claim 1, wherein the box body comprises a first sleeve and a second sleeve, the cushion assembly is disposed inside the first sleeve, and the arc support pad is disposed Inside the second set of boxes.

The device according to claim 2, wherein the curved support pad is a first concave support pad, and the pad assembly is a convex curved pad, wherein

The first concave curved support pad is disposed on a side of the convex curved pad as a concave curved surface, and the convex curved pad is disposed to be convex toward one side of the first concave curved support pad. a curved surface, the opposite sides of the Fresnel screen respectively intersecting the concave curved surface of the first concave curved support pad and the convex curved surface of the convex curved pad.

The apparatus according to claim 3, wherein said first concave curved support pad comprises a curved support plate and a support pad supporting and fixing said curved support plate, said support pad being located in said arc Between the shaped plate and the bottom of the second set, the support pad is in contact with the inner wall of the second set;

The curved plate is disposed on a side of the convex curved pad as a concave curved surface, and the Fresnel screen is placed on the concave curved surface of the curved plate;

The curved plate is disposed on the one side of the supporting pad as a convex curved surface, and the supporting pad is disposed on a side of the curved plate as a concave curved surface, and the curved plate is convex The curvature of the curved surface coincides with the curvature of the concave curved surface of the support pad.

The device according to claim 4, wherein said support pad comprises parallel to a horizontal partition disposed on a short side of the Fresnel screen and two curved brackets symmetrically disposed with respect to the horizontal partition, wherein the lines of the two curved brackets are perpendicular to the Fresnel screen side;

One side of the horizontal partition plate is in contact with the convex curved surface of the curved pallet; the curved bracket is disposed toward a side of the curved pallet as a concave curved surface, and the inner portion of the curved bracket The concave curved surface is in conflict with the convex curved surface of the curved pallet.

[Claim 6] The device according to claim 5, wherein a finite edge is symmetrically disposed on the curved plate, and a limiting edge on the curved plate is parallel to the Fresnel screen The long side of the curved bracket is disposed adjacent to the side of the curved bracket, and the limiting edge on the curved bracket is parallel to the short side of the Fresnel screen.

[Claim 7] The apparatus according to claim 4, wherein the convex curved pad includes at least two arcuate bodies parallel to a long side of the Fresnel screen, the curved body facing One side of the curved pallet is disposed as a convex curved surface, and the curvature of the curved outer convex curved surface is consistent with the curvature of the concave curved surface of the curved pallet;

One side of the arcuate body facing away from the arcuate pallet is disposed in a plane, and a plane of the arcuate body is in contact with an inner wall of the first casing.

[Claim 8] The device according to claim 2, wherein the curved support pad is a second concave curved support pad, and the pad assembly comprises a cylindrical pad and a concave curved pad; The concave curved pad is disposed opposite to the second concave curved support pad on both sides of the cylindrical liner;

The second concave curved support pad is disposed to have a concave curved surface toward one side of the cylindrical gasket, and the concave curved gasket is disposed to have a concave curved surface toward one side of the cylindrical gasket, a curvature of a concave curved surface of the second concave curved support pad, a curvature of the concave curved surface of the concave curved pad conforming to a curvature of a side surface of the cylindrical pad to curl on a side of the cylindrical liner The Fresnel screen is limited.

[Claim 9] The apparatus according to claim 8, wherein the cylindrical spacer comprises a connecting plate and a plurality of mutually parallel cylindrical sub-liners uniformly disposed along an axial direction of the cylindrical spacer Pad, where The cylindrical sub-pad is provided with a connecting groove, and the groove direction of the connecting groove is perpendicular to the central axis of the cylindrical sub-pad;

The connecting plate is engaged in the connecting groove, and the connecting plate has a width smaller than a length of the connecting groove in a radial direction of the cylindrical sub-pad.

[Claim 10] The apparatus according to claim 8, wherein the second concave curved support pad includes at least two curved support bodies parallel to an end surface of the cylindrical gasket, the curved shape Supporting the pad to fix the cylindrical liner;

A limiting plate is disposed on the curved support near the end surface of the cylindrical gasket, and the limiting plate is in contact with the end surface of the cylindrical gasket.

[Claim 11] The device according to claim 1, wherein a curvature at one end of the curved support pad curved surface decreases to a curvature at a lowest point of the curved support pad surface, the curved support pad The curvature at the lowest point of the surface increases to the curvature of the other end of the curved support pad surface.

[Claim 12] The device according to claim 1, further comprising a first film and a second film, one side of the first film being adhered to a concave curved surface of the curved support pad, The other side is attached to one side of the Fresnel screen, one side of the second film is attached to the convex curved surface of the pad assembly, and the other side is opposite to the Fresnel screen. Side fit.