Microwave shielding net

Abstract

The utility model relates to the technical field of UV curing, and discloses a microwave shielding net which comprises a square frame, a strip-shaped shielding net is arranged at the bottom of the square frame in an attached mode, positioning plates are fixedly connected to the front side and the rear side of the strip-shaped shielding net, and the upper surfaces of the positioning plates make contact with the bottom of the square frame. A positioning hole is formed in the positioning plate, and a positioning block is arranged on the inner wall of the positioning hole in an attached mode. Through cooperation of the positioning plate, the positioning holes, the positioning blocks, the grooves, the guide columns, the pressing supports, the first springs and the second U-shaped plate, the strip-shaped shielding nets and the square frame can be directly disassembled and assembled, meanwhile, the microwave shielding net is formed by combining a plurality of strip-shaped shielding nets, and therefore when the microwave shielding net is damaged, the microwave shielding net can not be damaged. The microwave shielding net can be continuously used by replacing the damaged strip-shaped shielding net, so that the maintenance cost of the microwave shielding net is reduced.

Description

Technical Field

[0001] This utility model relates to the field of UV curing technology, and in particular to a microwave shielding mesh. Background Technology

[0002] A UV curing unit is a mechanical device that emits powerful, usable ultraviolet light. It is widely used in industries such as printing, electronics, building materials, and machinery. The types and styles of UV curing units vary depending on the products being cured, but their ultimate purpose is the same: to cure industrial inks and coatings.

[0003] The UV curing unit consists of several parts: a light source system, a ventilation system, a control system, a conveying system, and a housing. The light source system is further composed of UV lamps, lamp covers (reflectors), transformers (ballasts), and capacitors (triggers).

[0004] UV curing equipment is powered by high-energy microwaves. This form of energy is equivalent to that of a household microwave oven, and improper use or insufficient shielding can cause harm to workers. Therefore, microwave shielding mesh must be installed on UV curing equipment.

[0005] Microwave shielding mesh is used in conjunction with reflectors to confine microwaves within a small chamber, allowing only ultraviolet (UV) light to penetrate and reach the material being cured. Any cracks or holes in the microwave shielding mesh can cause dangerous levels of microwave radiation leakage. Therefore, it is crucial to ensure the microwave shielding mesh remains intact. However, for some large UV curing devices, the microwave shielding mesh is quite large, and damage to even one part of it renders the entire mesh unusable, leading to high maintenance costs. Summary of the Invention

[0006] The purpose of this utility model is to address the shortcomings of existing technologies, such as the fact that for some large UV curing devices, the microwave shielding mesh is large and, when a part of the microwave shielding mesh is damaged, the entire microwave shielding mesh cannot be used, resulting in high maintenance costs. Therefore, this utility model proposes a new type of microwave shielding mesh.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A microwave shielding mesh includes a square frame. A strip shielding mesh is attached to the bottom of the square frame. Positioning plates are fixedly connected to both the front and rear sides of the strip shielding mesh. The upper surface of the positioning plate contacts the bottom of the square frame. A positioning hole is formed inside the positioning plate. A positioning block is attached to the inner wall of the positioning hole. The upper surface of the positioning block is fixedly connected to the bottom of the square frame. A groove is formed on the left side of the square frame. A guide post is fixedly connected to the right side of the inner wall of the groove. A pressing bracket is attached to the surface of the guide post and the inner wall of the groove. A first spring is fixedly connected to the right side of the pressing bracket and the inner wall of the groove. A second U-shaped plate is attached to the surface of the pressing bracket. The upper surface of the second U-shaped plate is fixedly connected to the bottom of the square frame.

[0009] Preferably, the pressing bracket includes a first U-shaped plate, the surface of which contacts the inner wall of the groove, connecting blocks are fixedly connected to the front and rear sides of the inner wall of the first U-shaped plate and the left side of the first spring, the inner wall of the first U-shaped plate and the upper surface of the connecting blocks are both in contact with the surface of the guide post, rings are fixedly connected to both sides of the inner wall of the first U-shaped plate, a cylinder is fitted to the inner wall of the ring, a U-shaped pressing post is fixedly connected to the surface of the cylinder, and the bottom of the positioning plate and the inner wall of the second U-shaped plate are both in contact with the surface of the U-shaped pressing post.

[0010] Preferably, the thickness of the strip shielding mesh, the positioning plate, and the second U-shaped plate are all equal.

[0011] Preferably, the U-shaped pressing column has limit grooves on both the front and rear sides, the square frame has mounting holes inside, the inner wall of the mounting holes is fitted with mounting bolts, the surface of the mounting bolts is fixedly connected to limit rings, and the inner wall of the limit grooves and the bottom of the square frame are in contact with the surface of the limit rings.

[0012] Preferably, a hollow cylinder is fitted onto the surface of the square frame, and an installation ring is fixedly connected to the inner wall of the hollow cylinder. A threaded hole is opened at the bottom of the installation ring, and the inner wall of the threaded hole is threadedly connected to the surface of the installation bolt. A second spring is fixedly connected to the bottom of the installation ring, and the bottom of the second spring contacts the upper surface of the square frame.

[0013] Preferably, a baffle is fixedly connected to the upper surface of the mounting ring, a hemispherical rubber block is bonded to the bottom of the baffle, and an arc-shaped groove is formed on the upper surface of the mounting bolt, with the inner wall of the arc-shaped groove in contact with the surface of the hemispherical rubber block.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] (1) This utility model enables direct assembly and disassembly between the strip shielding mesh and the square frame through the cooperation of the positioning plate, positioning hole, positioning block, groove, guide post, pressing bracket, first spring and second U-shaped plate. At the same time, the microwave shielding mesh is composed of multiple strip shielding meshes. Therefore, when the microwave shielding mesh is damaged, the microwave shielding mesh can continue to be used by replacing the damaged strip shielding mesh, thereby reducing the maintenance cost of the microwave shielding mesh.

[0016] (2) By using the combination of the limiting ring and the limiting groove, the microwave shielding mesh is installed on the mounting ring by the mounting bolts, and the U-shaped pressing column on the pressing bracket cannot move. This makes it impossible for the second U-shaped plate and the U-shaped pressing column to separate after the microwave shielding mesh is installed, and makes the strip shielding mesh more firmly fixed to the square frame. At the same time, the second spring can buffer the impact force on the strip shielding mesh, so that the strip shielding mesh is not easily damaged by external impact. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 for Figure 1 Sectional view at point AA;

[0019] Figure 3 for Figure 2 Enlarged view at point B in the middle;

[0020] Figure 4 This is a top view of the square frame in this utility model;

[0021] Figure 5 This is a top view of the strip-shaped shielding mesh in this utility model;

[0022] Figure 6 This is a top view of the pressing bracket in this utility model;

[0023] Figure 7 This is a front view of the pressing bracket in this utility model;

[0024] Figure 8 for Figure 7 Sectional view at CC;

[0025] Figure 9 This is a bottom view of the hollow cylinder of this utility model;

[0026] Figure 10 This is a top view of the mounting bolts in this utility model.

[0027] In the diagram: 1. Square frame; 2. Strip shielding mesh; 3. Positioning plate; 4. Positioning hole; 5. Positioning block; 6. Groove; 7. Guide post; 8. Pressing bracket; 81. First U-shaped plate; 82. Connecting block; 83. Ring; 84. Cylinder; 85. U-shaped pressing post; 9. First spring; 10. Second U-shaped plate; 11. Limiting groove; 12. Mounting hole; 13. Mounting bolt; 14. Limiting ring; 15. Hollow cylinder; 16. Mounting ring; 17. Threaded hole; 18. Second spring; 19. Baffle; 20. Hemispherical rubber block; 21. Arc groove. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] Example 1:

[0031] Reference Figure 1-8 A microwave shielding mesh includes a square frame 1, a strip shielding mesh 2 attached to the bottom of the square frame 1, positioning plates 3 fixedly connected to the front and rear sides of the strip shielding mesh 2, the upper surface of the positioning plates 3 contacting the bottom of the square frame 1, positioning holes 4 opened inside the positioning plates 3, positioning blocks 5 attached to the inner wall of the positioning holes 4, the upper surface of the positioning blocks 5 fixedly connected to the bottom of the square frame 1, when the positioning blocks 5 contact the positioning holes 4, the strip shielding mesh 2 can be positioned by the cooperation of the positioning blocks 5 and the positioning holes 4, a groove 6 opened on the left side of the square frame 1, a guide post 7 fixedly connected to the right side of the inner wall of the groove 6, a pressing bracket 8 attached to the surface of the guide post 7 and the inner wall of the groove 6, a first spring 9 fixedly connected to the right side of the pressing bracket 8 and the inner wall of the groove 6, a second U-shaped plate 10 attached to the surface of the pressing bracket 8, the upper surface of the second U-shaped plate 10 fixedly connected to the bottom of the square frame 1.

[0032] The pressing bracket 8 includes a first U-shaped plate 81. The surface of the first U-shaped plate 81 contacts the inner wall of the groove 6. Connecting blocks 82 are fixedly connected to the front and rear sides of the inner wall of the first U-shaped plate 81 and the left side of the first spring 9. The inner wall of the first U-shaped plate 81 and the upper surface of the connecting blocks 82 are in contact with the surface of the guide post 7. Through the cooperation of the connecting blocks 82 and the guide post 7, the first U-shaped plate 81 can only move left and right. Rings 83 are fixedly connected to both sides of the inner wall of the first U-shaped plate 81. A cylinder 84 is fitted into the inner wall of the ring 83. A U-shaped pressing block is fixedly connected to the surface of the cylinder 84. The pressing column 85, through the cooperation of the ring 83 and the cylinder 84, allows the U-shaped pressing column 85 to rotate around the cylinder 84 as the center. The bottom of the positioning plate 3 and the inner wall of the second U-shaped plate 10 are in contact with the surface of the U-shaped pressing column 85. The thickness of the strip shielding mesh 2, the positioning plate 3 and the second U-shaped plate 10 are all equal. When the U-shaped pressing column 85 contacts the inner wall of the second U-shaped plate 10, the tension of the first spring 9 on the connecting block 82 can make the U-shaped pressing column 85 and the second U-shaped plate 10 in close contact, and prevent the U-shaped pressing column 85 and the second U-shaped plate 10 from automatically separating.

[0033] Example 2:

[0034] Reference Figure 1-10 The U-shaped pressing column 85 has limit grooves 11 on both the front and rear sides. The square frame 1 has mounting holes 12 inside. Mounting bolts 13 are fitted to the inner wall of the mounting holes 12. Limiting rings 14 are fixedly connected to the surface of the mounting bolts 13. The inner wall of the limit groove 11 and the bottom of the square frame 1 are in contact with the surface of the limiting rings 14.

[0035] A hollow cylinder 15 is attached to the surface of the square frame 1. An installation ring 16 is fixedly connected to the inner wall of the hollow cylinder 15. A threaded hole 17 is opened at the bottom of the installation ring 16. The inner wall of the threaded hole 17 is threadedly connected to the surface of the installation bolt 13. A second spring 18 is fixedly connected to the bottom of the installation ring 16. The bottom of the second spring 18 is in contact with the upper surface of the square frame 1.

[0036] By cooperating with the limiting ring 14 and the limiting groove 11, after the microwave shielding mesh is installed on the mounting ring 16 by the mounting bolt 13, the U-shaped pressing post 85 on the pressing bracket 8 cannot move. This prevents the second U-shaped plate 10 from separating from the U-shaped pressing post 85 after the microwave shielding mesh is installed, and makes the strip shielding mesh 2 more firmly fixed to the square frame 1. At the same time, the second spring 18 can buffer the impact force on the strip shielding mesh 2, making the strip shielding mesh 2 less likely to be damaged by external impact.

[0037] A baffle 19 is fixedly connected to the upper surface of the mounting ring 16. A hemispherical rubber block 20 is bonded to the bottom of the baffle 19. An arc groove 21 is formed on the upper surface of the mounting bolt 13. The inner wall of the arc groove 21 contacts the surface of the hemispherical rubber block 20. When the mounting bolt 13 is screwed into the threaded hole 17, the mounting bolt 13 will press the hemispherical rubber block 20 and make the hemispherical rubber block 20 and the arc groove 21 in close contact. At this time, the friction between the hemispherical rubber block 20 and the mounting bolt 13 can prevent the mounting bolt 13 from loosening. At the same time, by designing the hemispherical rubber block 20 into a hemispherical shape, the contact surface between the hemispherical rubber block 20 and the arc groove 21 can be larger, and the friction between the hemispherical rubber block 20 and the mounting bolt 13 can be larger.

[0038] In this utility model, when the user uses the microwave shielding mesh, first fix the hollow cylinder 15 on the UV curing device, then insert the square frame 1 into the hollow cylinder 15, and insert the mounting bolt 13 into the mounting hole 12. Then, screw the mounting bolt 13 into the threaded hole 17, and install the square frame 1 into the hollow cylinder 15 through the cooperation of the mounting bolt 13 and the threaded hole 17. At this time, the installation of the microwave shielding mesh can be completed.

[0039] When a strip of shielding mesh 2 is damaged, first unscrew the mounting bolt 13 from the threaded hole 17, then remove the square frame 1 from the hollow cylinder 15 and remove the mounting bolt 13 from the mounting hole 12. Then, move the U-shaped pressing post 85 to the left to separate the U-shaped pressing post 85 from the second U-shaped plate 10, and rotate the U-shaped pressing post 85 to separate it from the positioning plate 3. At this point, the damaged strip of shielding mesh 2 can be replaced.

[0040] After the strip shielding mesh 2 is replaced, rotate and move the U-shaped pressing post 85 to bring it into contact with the inner wall of the second U-shaped plate 10. Then, the tension of the connecting block 82 by the first spring 9 prevents the second U-shaped plate 10 from being directly separated from the U-shaped pressing post 85, and prevents the U-shaped pressing post 85 from rotating. At this time, the strip shielding mesh 2 is fixed to the square frame 1 by the U-shaped pressing post 85. Then, insert the square frame 1 into the hollow cylinder 15 and insert the mounting bolt 13 into the mounting hole 12. Then, screw the mounting bolt 13 into the threaded hole 17. Through the cooperation of the mounting bolt 13 and the threaded hole 17, the square frame 1 is installed in the hollow cylinder 15. At this time, the installation of the microwave shielding mesh is completed.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A microwave shielding mesh, comprising a square frame (1), characterized in that, A strip shielding mesh (2) is attached to the bottom of the square frame (1). Positioning plates (3) are fixedly connected to both the front and rear sides of the strip shielding mesh (2). The upper surface of the positioning plate (3) is in contact with the bottom of the square frame (1). A positioning hole (4) is opened inside the positioning plate (3). A positioning block (5) is attached to the inner wall of the positioning hole (4). The upper surface of the positioning block (5) is fixedly connected to the bottom of the square frame (1). A groove (6) is opened on the left side of the square frame (1). A guide post (7) is fixedly connected to the right side of the inner wall of the groove (6). A pressing bracket (8) is attached to both the surface of the guide post (7) and the inner wall of the groove (6). A first spring (9) is fixedly connected to both the right side of the pressing bracket (8) and the inner wall of the groove (6). A second U-shaped plate (10) is attached to the surface of the pressing bracket (8). The upper surface of the second U-shaped plate (10) is fixedly connected to the bottom of the square frame (1).

2. The microwave shielding mesh according to claim 1, characterized in that, The pressing bracket (8) includes a first U-shaped plate (81), the surface of the first U-shaped plate (81) is in contact with the inner wall of the groove (6), the front and rear sides of the inner wall of the first U-shaped plate (81) and the left side of the first spring (9) are fixedly connected with connecting blocks (82), the inner wall of the first U-shaped plate (81) and the upper surface of the connecting blocks (82) are in contact with the surface of the guide post (7), the two sides of the inner wall of the first U-shaped plate (81) are fixedly connected with rings (83), the inner wall of the rings (83) is fitted with a cylinder (84), the surface of the cylinder (84) is fixedly connected with a U-shaped pressing post (85), the bottom of the positioning plate (3) and the inner wall of the second U-shaped plate (10) are in contact with the surface of the U-shaped pressing post (85).

3. A microwave shielding mesh according to claim 1, characterized in that, The thicknesses of the strip shielding mesh (2), the positioning plate (3), and the second U-shaped plate (10) are all equal.

4. A microwave shielding mesh according to claim 2, characterized in that, The U-shaped pressing column (85) has a limiting groove (11) on both the front and rear sides. The square frame (1) has an installation hole (12) inside. The inner wall of the installation hole (12) is fitted with an installation bolt (13). The surface of the installation bolt (13) is fixedly connected to a limiting ring (14). The inner wall of the limiting groove (11) and the bottom of the square frame (1) are in contact with the surface of the limiting ring (14).

5. A microwave shielding mesh according to claim 4, characterized in that, A hollow cylinder (15) is attached to the surface of the square frame (1). An installation ring (16) is fixedly connected to the inner wall of the hollow cylinder (15). A threaded hole (17) is opened at the bottom of the installation ring (16). The inner wall of the threaded hole (17) is threadedly connected to the surface of the installation bolt (13). A second spring (18) is fixedly connected to the bottom of the installation ring (16). The bottom of the second spring (18) is in contact with the upper surface of the square frame (1).

6. A microwave shielding mesh according to claim 5, characterized in that, A baffle (19) is fixedly connected to the upper surface of the mounting ring (16), and a hemispherical rubber block (20) is bonded to the bottom of the baffle (19). An arc groove (21) is opened on the upper surface of the mounting bolt (13), and the inner wall of the arc groove (21) is in contact with the surface of the hemispherical rubber block (20).

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