Double-layer compression-resistant stainless steel screen

Abstract

The utility model discloses a double-layer pressure-resistant stainless steel screen, which relates to the technical field of stainless steel screens and comprises an upper frame, a sliding ring arranged in the upper frame, an upper screen fixed in the sliding ring, a buffer mechanism arranged in the upper frame and capable of buffering the upper screen, fixing blocks fixed on two sides of the upper frame, and a lower frame. The lower frame is located at the bottom of the upper frame, a lower screen is fixed into the lower frame, handles are fixed to the two sides of the lower frame, limiting mechanisms capable of limiting the fixing blocks are arranged on the handles, and auxiliary mechanisms capable of assisting the limiting mechanisms in connecting the handles and the fixing blocks are arranged at the bottoms of the handles. The sliding ring can drive the moving ring to move downwards, the sliding ring can drive the upper screen to move towards the lower screen, the lower screen can apply upward counter-acting force to the upper screen, pressure borne by the upper screen can be relieved conveniently, and then the pressure bearing capacity of the upper screen is improved.

Description

Technical Field

[0001] This utility model relates to the field of stainless steel screen technology, specifically a double-layer pressure-resistant stainless steel screen. Background Technology

[0002] Stainless steel mesh is different from ordinary mesh products. It is a mesh product with a strict series of mesh sizes and functions to classify and screen particles, conforming to industry, institutional, and standard approvals.

[0003] A stainless steel double-layer standard sieve with patent number CN217411365U is provided by setting an upper frame, the bottom of which is connected to a base frame. The inner side of the base frame is provided with a sieve screen, which includes a working screen and a support screen located below the working screen and closely attached to it. The working screen is a 300-635 mesh filter screen, and the connection between the working screen, the support screen and the base frame is provided with sealant.

[0004] However, research has shown that existing double-layer stainless steel screens still have the following drawbacks:

[0005] Existing double-layer stainless steel screens are directly fixed to the outer frame. When the material being filtered is heavy, the pressure on the screen will be greater. Prolonged exposure to this pressure may cause the screen to break. In addition, double-layer stainless steel screens are generally composed of an upper frame and a lower frame, but there is no limiting mechanism between them. When the double-layer stainless steel screen is tilted or held vertically, it will separate, resulting in poor fastening. Therefore, technological innovation and design optimization are needed to optimize a double-layer pressure-resistant stainless steel screen. Utility Model Content

[0006] Existing double-layer stainless steel screens are directly fixed to the outer frame. When the filtered material is heavy, the pressure on the screen is significant, and prolonged exposure to this pressure may cause damage. Furthermore, double-layer stainless steel screens are typically composed of an upper and lower frame without a locking mechanism. This can lead to separation when the screen is tilted or handled vertically, resulting in poor stability. To address these issues, this application provides a double-layer pressure-resistant stainless steel screen where the upper screen drives a sliding ring to move downwards. As the moving ring moves downwards, the sliding ring causes the upper screen to move towards the lower screen. The lower screen then exerts an upward reaction force on the upper screen, reducing the pressure on it and improving its ability to withstand pressure. Simultaneously, the connecting plate causes the square frame to slide, which in turn causes the sliding block to compress the spring. The fixed block then inserts into the slot. Releasing the connecting plate allows the spring to move the square frame to the protrusion position via the sliding plate, thus limiting the handle and the fixed block. Pulling the connecting plate again separates the two parts, thus completing the rapid positioning of the double-layer stainless steel mesh and improving its tightness.

[0007] The technical solution adopted by the embodiments of this application to solve its technical problem is:

[0008] A double-layer pressure-resistant stainless steel screen, comprising:

[0009] The upper frame has a sliding ring inside, and an upper screen is fixed inside the sliding ring. The upper frame also has a buffer mechanism inside that can buffer the upper screen. Fixed blocks are fixed on both sides of the upper frame.

[0010] The lower frame is located at the bottom of the upper frame. A lower screen is fixed inside the lower frame. Handles are fixed on both sides of the lower frame. The handles are equipped with limiting mechanisms that can limit the fixed blocks. The bottom of the handles is equipped with an auxiliary mechanism that can assist the limiting mechanisms in connecting the handles and the fixed blocks.

[0011] In one possible implementation, the buffer mechanism includes a movable groove formed on the inner wall of the upper frame, a movable ring moving within the movable groove, the movable ring being fixedly connected to a sliding ring, an upper magnetic ring fixed to the bottom of the movable ring, and a lower magnetic ring fixed inside the movable groove. When the upper screen is subjected to pressure, the upper screen will drive the sliding ring to move downward, the sliding ring will drive the movable ring to move downward, and the sliding ring will drive the upper screen to move towards the lower screen.

[0012] In one possible implementation, the magnetic poles of the upper and lower magnetic rings facing each other are opposite, and the upper and lower magnetic rings repel each other. The lower screen will exert an upward reaction force on the upper screen, which helps to reduce the pressure on the upper screen and thus improve the pressure resistance of the upper screen.

[0013] In one possible implementation, a fixing ring is fixed at the bottom of the upper frame, and an annular groove is provided at the top of the lower frame. The fixing ring can be inserted into the annular groove to facilitate the initial positioning of the upper and lower frames.

[0014] In one possible implementation, the limiting mechanism includes slots formed at both ends of the handle, both slots being matched with a fixing block, and square frames sliding at both ends of the handle. A connecting plate is fixed between the two square frames, and a protrusion is fixed on the fixing block. The fixing block is placed inside the slot, and the square frame is slid to the position of the protrusion through the connecting plate. At this time, the square frame is located at the connection position between the fixing block and the handle, which facilitates limiting the handle and the fixing block.

[0015] In one possible implementation, the auxiliary mechanism includes sliding grooves on both sides of the bottom of the handle, with sliding blocks sliding inside the sliding grooves. The sliding blocks are fixedly connected to the square frame, and a spring is provided inside the sliding groove. The spring is always in a compressed state. Under the action of the spring, the spring will drive the square frame to the protrusion position through the sliding block, thereby preventing the square frame from sliding freely on the handle.

[0016] In one possible implementation, a guide post is provided in the sliding groove, the guide post passes through the sliding block, the sliding block can slide on the guide post, and the spring is sleeved on the outside of the guide post to prevent the spring from falling out of the sliding groove, while also improving the stability of the sliding block when sliding.

[0017] In one possible implementation, the mesh size of the upper screen is larger than that of the lower screen, which facilitates more precise filtration of the material.

[0018] In summary, this utility model has at least one of the following beneficial technical effects:

[0019] 1. The upper screen will drive the sliding ring to move downwards, which in turn will drive the moving ring to move downwards. The sliding ring will then drive the upper screen to move towards the lower screen. The lower screen will exert an upward reaction force on the upper screen, which will help reduce the pressure on the upper screen and thus improve the upper screen's ability to withstand pressure.

[0020] 2. The square frame slides along the connecting plate, which in turn causes the sliding block to compress the spring. The fixing block then inserts into the slot. When the connecting plate is released, the spring moves the square frame to the protrusion position via the sliding plate, thus limiting the handle and the fixing block. Pulling the connecting plate again separates the two parts, thus completing the quick limiting of the double-layer stainless steel mesh and improving its tightness. Attached Figure Description

[0021] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a side sectional view of the overall structure of this utility model;

[0023] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0024] Figure 4 This is a schematic diagram of the lower frame structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the handle structure of this utility model;

[0026] Figure 6 This is a partial side sectional view of the handle of this utility model;

[0027] Figure 7 This is a schematic diagram of the upper frame structure of this utility model.

[0028] Reference numerals: 1. Upper frame; 2. Upper screen; 3. Sliding ring; 4. Lower frame; 5. Square frame; 6. Handle; 7. Fixing ring; 8. Lower screen; 9. Annular groove; 10. Connecting plate; 11. Moving ring; 12. Upper magnetic ring; 13. Moving groove; 14. Lower magnetic ring; 15. Sliding groove; 16. Guide post; 17. Spring; 18. Sliding block; 19. Groove; 20. Protrusion; 21. Fixing block. Detailed Implementation

[0029] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The instrument placement rack involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] This embodiment describes the specific structure of a double-layer pressure-resistant stainless steel screen, please refer to [reference needed]. Figures 1-7 As shown, a double-layer pressure-resistant stainless steel screen includes:

[0031] The upper frame 1 has a sliding ring 3 inside, and an upper screen 2 is fixed inside the sliding ring 3. The upper frame 1 has a buffer mechanism inside that can buffer the upper screen 2. Fixed blocks 21 are fixed on both sides of the upper frame 1.

[0032] The lower frame 4 is located at the bottom of the upper frame 1. The lower screen 8 is fixed inside the lower frame 4. Handles 6 are fixed on both sides of the lower frame 4. The handles 6 are equipped with a limiting mechanism that can limit the fixed block 21. The bottom of the handles 6 is equipped with an auxiliary mechanism that can assist the limiting mechanism in connecting the handles 6 and the fixed block 21.

[0033] Currently, double-layer stainless steel screens on the market are directly fixed to the outer frame. When the material being filtered is heavy, the pressure on the screen will be greater. If the screen is subjected to such pressure for a long time, it may break.

[0034] Meanwhile, the buffer mechanism includes a movable groove 13 formed on the inner wall of the upper frame 1. A movable ring 11 moves within the movable groove 13 and is fixedly connected to a sliding ring 3. An upper magnetic ring 12 is fixed to the bottom of the movable ring 11, and a lower magnetic ring 14 is fixed inside the movable groove 13. When the upper screen 2 is subjected to pressure, the upper screen 2 will drive the sliding ring 3 to move downward, and the sliding ring 3 will drive the movable ring 11 to move downward. The sliding ring 3 will drive the upper screen 2 to move towards the lower screen 8. The magnetic poles of the upper magnetic ring 12 and the lower magnetic ring 14 are opposite, and the upper magnetic ring 12 and the lower magnetic ring 14 repel each other. The lower screen 8 will give the upper screen 2 an upward reaction force, which helps to reduce the pressure on the upper screen 2 and thus improve the pressure resistance of the upper screen 2.

[0035] Meanwhile, double-layer stainless steel screens are generally composed of an upper frame 1 and a lower frame 4, and there is no limit mechanism between the two. When the double-layer stainless steel screen is tilted or vertically picked up, the double-layer stainless steel screen will separate, resulting in poor fastening.

[0036] The bottom of the upper frame 1 is fixed with a fixing ring 7, and the top of the lower frame 4 is provided with an annular groove 9. The fixing ring 7 can be inserted into the annular groove 9 to facilitate the initial positioning of the upper frame 1 and the lower frame 4.

[0037] In addition, the limiting mechanism includes slots 19 on both ends of the handle 6. Both slots 19 are matched with the fixing blocks 21. Square frames 5 slide on both ends of the handle 6. A connecting plate 10 is fixed between the two square frames 5. A protrusion 20 is fixed on the fixing block 21. When the fixing block 21 is placed inside the slot 19, the square frame 5 is slid to the position of the protrusion 20 through the connecting plate 10. At this time, the square frame 5 is located at the connection position between the fixing block 21 and the handle 6, which facilitates the limiting of the handle 6 and the fixing block 21.

[0038] Meanwhile, the auxiliary mechanism includes sliding grooves 15 on both sides of the bottom of the handle 6. Sliding blocks 18 slide inside the sliding grooves 15 and are fixedly connected to the square frame 5. A spring 17 is provided inside the sliding grooves 15. The spring 17 is always in a compressed state. Under the action of the spring 17, the spring 17 will drive the square frame 5 to the position of the protrusion 20 through the sliding block 18, preventing the square frame 5 from sliding freely on the handle 6. A guide post 16 is provided inside the sliding grooves 15 and passes through the sliding block 18. The sliding block 18 can slide on the guide post 16. The spring 17 is sleeved on the outside of the guide post 16 to prevent the spring 17 from falling out of the sliding grooves 15 and to improve the stability of the sliding block 18 when sliding.

[0039] It is worth noting that the mesh size of the upper screen 2 is larger than that of the lower screen 8, which facilitates more detailed filtration of materials.

[0040] When workers need to assemble the double-layer stainless steel mesh, they first place the upper frame 1 on the lower frame 4. The top of the square frame 5 will block the fixing block 21. Pulling the connecting plate 10 causes the square frame 5 to slide. The square frame 5 will cause the sliding block 18 to compress the spring 17. When the square frame 5 no longer blocks the fixing block 21, the fixing block 21 will insert into the slot 19. Releasing the connecting plate 10 allows the spring 17 to move the square frame 5 to the protrusion 20 position via the sliding plate, thus limiting the handle 6 and the fixing block 21. Pulling the connecting plate 10 again will separate the two, thus completing the quick limiting of the double-layer stainless steel mesh and improving its tightness.

[0041] When the upper screen 2 in the double-layer stainless steel mesh is subjected to pressure from a large material, the upper screen 2 will drive the sliding ring 3 to move downward, the sliding ring 3 will drive the moving ring 11 to move downward, and the sliding ring 3 will drive the upper screen 2 to move towards the lower screen 8. The lower screen 8 will give the upper screen 2 an upward reaction force, which helps to reduce the pressure on the upper screen 2 and thus improve the pressure resistance of the upper screen 2.

[0042] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A double-layer pressure-resistant stainless steel screen, characterized in that, include: The upper frame (1) is provided with a sliding ring (3) inside the upper frame (1), and an upper screen (2) is fixed inside the sliding ring (3). The upper frame (1) is provided with a buffer mechanism that can buffer the upper screen (2). Fixed blocks (21) are fixed on both sides of the upper frame (1). The lower frame (4) is located at the bottom of the upper frame (1). A lower screen (8) is fixed inside the lower frame (4). Handles (6) are fixed on both sides of the lower frame (4). A limiting mechanism is provided on the handle (6) to limit the fixed block (21). An auxiliary mechanism is provided at the bottom of the handle (6) to assist the limiting mechanism in connecting the handle (6) and the fixed block (21).

2. The double-layer pressure-resistant stainless steel screen as described in claim 1, characterized in that: The buffer mechanism includes a movable groove (13) opened on the inner wall of the upper frame (1), a movable ring (11) moving in the movable groove (13), the movable ring (11) being fixedly connected to the sliding ring (3), an upper magnetic ring (12) being fixed at the bottom of the movable ring (11), and a lower magnetic ring (14) being fixed inside the movable groove (13).

3. The double-layer pressure-resistant stainless steel screen as described in claim 2, characterized in that: The magnetic poles of the upper magnetic ring (12) and the lower magnetic ring (14) facing each other are opposite, and the upper magnetic ring (12) and the lower magnetic ring (14) repel each other.

4. The double-layer pressure-resistant stainless steel screen as described in claim 1, characterized in that: The upper frame (1) is fixed with a fixing ring (7) at the bottom, and the lower frame (4) is provided with an annular groove (9) at the top, and the fixing ring (7) can be inserted into the annular groove (9).

5. The double-layer pressure-resistant stainless steel screen as described in claim 1, characterized in that: The limiting mechanism includes slots (19) on both ends of the handle (6), both slots (19) are matched with the fixing block (21), both ends of the handle (6) have a square frame (5) that slides, a connecting plate (10) is fixed between the two square frames (5), and a protrusion (20) is fixed on the fixing block (21).

6. The double-layer pressure-resistant stainless steel screen as described in claim 1, characterized in that: The auxiliary mechanism includes sliding grooves (15) on both sides of the bottom of the handle (6), with a sliding block (18) sliding inside the sliding groove (15). The sliding block (18) is fixedly connected to the square frame (5), and a spring (17) is provided inside the sliding groove (15).

7. A double-layer pressure-resistant stainless steel screen as described in claim 6, characterized in that: The sliding groove (15) is provided with a guide post (16), the guide post (16) passes through the sliding block (18), the sliding block (18) can slide on the guide post (16), and the spring (17) is sleeved on the outside of the guide post (16).

8. The double-layer pressure-resistant stainless steel screen as described in claim 1, characterized in that: The mesh size of the upper screen (2) is larger than that of the lower screen (8).

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