A degradable straw-based drainage device

Abstract

This invention belongs to the field of sludge treatment technology, specifically relating to a drainage device based on biodegradable straw. It includes a straw rope and an adjustable inner frame. The straw rope is wound around the outside of the adjustable inner frame. The adjustable inner frame includes a frame body with multiple side rods installed around its periphery. Flexible end caps are fixedly connected to the lower ends of the outer sides of the side rods, and flexible connectors are fixedly connected to the upper ends of the outer sides of the side rods. An end connecting pipe is fixedly connected to the upper end of the flexible connectors. The straw rope is wound around the outside of the side rods. The frame body includes a central shaft and a central tube. The central shaft can move vertically inside the central tube, and a central column is installed on the outside of the central shaft. This invention uses straw rope as the main body for filtration and drainage. The straw is biodegradable, reducing environmental pollution. After drainage, the inner frame can be easily removed by shrinking the frame, making frame recycling and reuse relatively simple.

Description

Technical Field

[0001] This invention belongs to the field of sludge treatment technology, specifically relating to a drainage device based on biodegradable straw. Background Technology

[0002] In the process of sludge treatment, traditional drainage boards are mostly made of non-degradable polymer materials such as plastics and rubber, which can easily cause soil and groundwater pollution after use and do not meet the requirements of environmental protection construction.

[0003] Some biodegradable drainage boards use natural fiber materials such as straw, but the existing biodegradable drainage board skeletons are mostly fixed structures with no adjustable diameter. After the drainage operation is completed, the skeleton is tightly attached to the straw filter layer and is difficult to separate and remove. Summary of the Invention

[0004] The purpose of this invention is to provide a drainage device based on biodegradable straw, which can use straw rope as the main body for filtering and drainage. The straw can be naturally degraded, reducing environmental pollution. After drainage is completed, the inner frame can be easily extracted by shrinking the frame, which can achieve the recycling and reuse of the frame in a relatively simple way.

[0005] The specific technical solution adopted by this invention is as follows:

[0006] A drainage device based on biodegradable straw includes a straw rope and an adjustable inner frame, wherein the straw rope is wound around the outside of the adjustable inner frame.

[0007] The adjustable inner frame includes a frame body, with multiple side rods installed around the periphery of the frame body. The lower ends of the outer sides of the multiple side rods are fixedly connected to flexible end caps, and the upper ends of the outer sides of the multiple side rods are fixedly connected to flexible connectors. The upper ends of the flexible connectors are fixedly connected to end connecting pipes, and the straw rope is wound around the outer sides of the multiple side rods.

[0008] Furthermore, the main frame includes a central shaft and a central tube. The central shaft can move vertically inside the central tube. A central column is installed on the outside of the central shaft. Multiple diagonal braces are hinged to the outside of the central column. The number of diagonal braces on the outside of the same central column is the same as the number of side rods. One end of each of the multiple diagonal braces is hinged to a multiple of the side rods. Multiple gap grooves adapted to the diagonal braces are opened on the periphery of the central tube. The diagonal braces pass through the gap grooves.

[0009] Furthermore, multiple hinge frames are fixedly connected to the outside of the central tube, and a connecting rod is fixedly connected to the end of the hinge frame. A waist groove is opened on the inclined support arm, and the connecting rod is slidably connected inside the waist groove.

[0010] Furthermore, a threaded rod is fixedly connected to the outer side of the central shaft, and a connecting block is fixedly connected to the middle position of the central tube, with the threaded rod and the connecting block being threadedly connected.

[0011] Furthermore, a top block is fixedly connected to the upper end of the central tube, a sleeve is rotatably connected to the top block, a knob is fixedly connected to the upper end of the sleeve, a rib is fixedly connected to the upper end of the central shaft, and the sleeve is slidably connected to the outside of the rib.

[0012] Furthermore, an arc-shaped plate is fixedly connected to the outer side of the edge rod.

[0013] Furthermore, both sides of the arc-shaped plate one are hinged to arc-shaped plates two via rotating connector one, and two adjacent arc-shaped plates two are hinged together via rotating connector two.

[0014] Furthermore, the central column can rotate and slide on the outside of the central shaft. An upper limit block and a lower limit block are respectively installed on the outside of the central shaft at the upper and lower sides of the central column. A return spring is fixedly connected between the upper limit block and the central column.

[0015] The technical effects achieved by this invention are as follows:

[0016] The present invention provides a drainage device based on biodegradable straw, which uses straw rope as the main body for filtering and drainage. The straw can be naturally degraded, reducing environmental pollution. It is equipped with an adjustable inner frame. After drainage is completed, the inner frame can be easily pulled out by shrinking the frame, which can achieve the recycling and reuse of the frame in a relatively simple way. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the adjustable inner frame of the present invention;

[0019] Figure 3 This is a top view of the combined structure of arc-shaped plate one and arc-shaped plate two of the present invention;

[0020] Figure 4 This is a partial enlarged view of the first and second arc-shaped plates of the present invention;

[0021] Figure 5 This is a schematic diagram of the main structure of the skeleton of the present invention;

[0022] Figure 6 This is a cross-sectional structural diagram of the main skeleton of the present invention;

[0023] Figure 7 This is the present invention. Figure 6 A magnified view of a section at point A in the middle;

[0024] Figure 8 This is the present invention. Figure 6 A magnified view of a section at point B from another perspective;

[0025] Figure 9 This is a schematic diagram of the upper limit block and the lower limit block of the present invention.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Central shaft; 2. Rib; 3. Sleeve; 4. Central tube; 5. Threaded rod; 6. Connecting block; 7. Gap groove; 8. Hinge frame; 9. Diagonal brace arm; 10. Waist groove; 11. Side rod; 12. Top block; 13. Flexible connection; 14. End connecting tube; 15. Flexible end cap; 16. Arc plate one; 17. Arc plate two; 18. Rotating connector one; 19. Rotating connector two; 20. Knob; 21. Opening area; 22. Connecting rod; 23. Upper limit block; 24. Return spring; 25. Central column; 26. Lower limit block; 27. Straw rope. Detailed Implementation

[0028] To make the objectives and advantages of this invention clearer, the invention will be specifically described below with reference to embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of the invention and does not strictly limit the scope of protection specifically claimed by the invention.

[0029] like Figures 1-8 As shown, a drainage device based on biodegradable straw includes a straw rope 27 and an adjustable inner frame. The straw rope 27 is generally spirally wound around the outside of the adjustable inner frame to form a filter section for filtering silt.

[0030] The adjustable inner frame can be expanded and contracted to change its diameter. After drainage is completed, the contraction of the adjustable inner frame creates a gap between it and the straw rope 27, making it easier to pull the adjustable inner frame out of the straw rope 27. This allows the adjustable inner frame to be recovered before the straw rope 27 is completely decomposed, improving work efficiency.

[0031] The adjustable inner frame includes a frame body with multiple side rods 11 installed around its periphery. The lower ends of the outer sides of the multiple side rods 11 are fixedly connected to flexible end caps 15, and the upper ends of the outer sides of the multiple side rods 11 are fixedly connected to flexible connectors 13. The upper ends of the flexible connectors 13 are fixedly connected to end connecting pipes 14, which are used to connect to the main pipe. Straw ropes 27 are wrapped around the outer sides of the multiple side rods 11. At this time, by adjusting the frame body to change the distribution position of the multiple side rods 11, the diameter of the adjustable inner frame can be changed.

[0032] It can be added that the flexible connector 13 is preferably made of flexible and stretchable materials such as rubber and silicone; the flexible end cap 15 is preferably made of wear-resistant rubber and flexible plastic, which has both flexibility and wear resistance.

[0033] like Figure 3 , Figures 5-7 As shown, the main frame includes a central shaft 1 and a central tube 4. The central shaft 1 can move vertically inside the central tube 4. A central column 25 is installed on the outside of the central shaft 1. Multiple diagonal braces 9 are hinged to the outside of the central column 25. The number of diagonal braces 9 on the outside of the same central column 25 is the same as the number of side rods 11. One end of each diagonal brace 9 is hinged to a multiple side rod 11. Multiple gap grooves 7 that are adapted to the diagonal braces 9 are opened on the periphery of the central tube 4. The diagonal braces 9 pass through the gap grooves 7. At this time, the diagonal braces 9 can be positioned through the gap grooves 7. In order to improve the stability of the positioning of the diagonal braces 9, the central tube 4... Multiple hinge frames 8 are fixedly connected to the outside. A connecting rod 22 is fixedly connected to the end of the hinge frame 8. A waist groove 10 is opened on the inclined support arm 9. The connecting rod 22 is slidably connected inside the waist groove 10. At this time, through the cooperation of the connecting rod 22 and the waist groove 10, a point connection can be formed between the middle position of the hinge frame 8 and the inclined support arm 9. Combined with the connection between the inclined support arm 9 and the threaded rod 5, a two-point positioning is formed. When the central shaft rod 1 moves vertically inside the central tube 4, the central shaft rod 1 can drive the central column 25 to move, thereby driving the inclined support arm 9 to rotate. When the inclined support arm 9 rotates, it can drive the side rod 11 to move.

[0034] like Figures 5-6 As shown, in some embodiments, the locking method after the central shaft 1 has moved is by locking with screws. In other embodiments, the locking method after the central shaft 1 has moved is that a threaded rod 5 is fixedly connected to the outside of the central shaft 1, and a connecting block 6 is fixedly connected to the middle position of the central tube 4. The threaded rod 5 and the connecting block 6 are threadedly connected. By rotating the central shaft 1, the threaded rod 5 is driven to rotate. The threaded connection between the threaded rod 5 and the connecting block 6 can be used to drive the central shaft 1 to move vertically inside the central tube 4, and it has good self-locking properties after the movement is completed.

[0035] In some further embodiments, a top block 12 is fixedly connected to the upper end of the central tube 4. The top block 12 serves as the operating end of the main frame body. A sleeve 3 is rotatably connected to the top block 12. A knob 20 is fixedly connected to the upper end of the sleeve 3. A rib rod 2 is fixedly connected to the upper end of the central shaft 1. The sleeve 3 is slidably connected to the outside of the rib rod 2. At this time, the rib rod 2 can be rotated by rotating the sleeve 3. Furthermore, the sleeve 3 reduces the height variation of the operating end of the main frame body.

[0036] like Figures 1-4As shown, in some other embodiments, an arc-shaped plate 16 is fixedly connected to the outer side of the side rod 11. The arc-shaped plate 16 increases the contact surface between the frame and the straw rope 27. Arc-shaped plates 17 are hinged to both sides of the arc-shaped plate 16 via rotating connectors 18. Adjacent arc-shaped plates 17 are hinged together via rotating connectors 19. When the side rod 11 moves the arc-shaped plate 16 towards the central shaft rod 1, the arc-shaped plate 16 causes the two arc-shaped plates 17 to contract into a V-shaped structure. When the side rod 11 moves the arc-shaped plate 16 away from the central shaft rod 1, the arc-shaped plate 16 causes the arc-shaped plates 17 to unfold. At this time, multiple arc-shaped plates 16 and multiple arc-shaped plates 17 combine to form a structure similar to a circular tube. Opening areas 21 are provided on both the arc-shaped plate 16 and the arc-shaped plate 17 to ensure water flow.

[0037] Meanwhile, the rotating connector 18 and the rotating connector 2 19 are preferably spring hinges. When the arc plate 16 drives the arc plate 2 17 to retract, the spring can be used to make the arc plate 2 17 form a V-shaped structure.

[0038] like Figure 8 As shown, the central column 25 can be rotatably connected to the outside of the central shaft 1, or it can be sleeved on the outside of the central shaft 1, allowing the central column 25 to rotate and slide on the outside of the central shaft 1. To match the sliding of the central column 25, an upper limit block 23 and a lower limit block 26 are respectively installed on the outside of the central shaft 1 at the upper and lower sides of the central column 25, respectively, to limit the upper and lower positions of the central column 25. A return spring 24 is fixedly connected between the upper limit block 23 and the central column 25. When the straw rope 27 is wound around the outside of the multiple side rods 11, the return spring 24 applies an elastic support force to the side rods 11 through the central column 25 and the diagonal support arm 9, automatically compensating for the loosening of the straw rope 27 during use and maintaining the tension of the filter layer.

[0039] Meanwhile, the upper limit block 23 can be directly fixed to the outside of the central shaft 1, or it can be threaded to the outside of the central shaft 1. By rotating the upper limit block 23, the elastic force applied by the return spring 24 to the central column 25 can be changed.

[0040] The working principle of this invention is as follows:

[0041] Rotating the knob 20 causes the sleeve 3 and the rib 2 to rotate. Through the threaded engagement of the threaded rod 5 and the connecting block 6, the central shaft rod 1 is pushed downward, and the central column 25 moves downward accordingly. Through the diagonal bracing arm 9, the side rod 11 is pushed outward to expand the adjustable inner frame to the set diameter. The straw rope 27 is spirally wound around the outside of the side rod 11 to form the main body of drainage and filtration. The main drainage pipe is connected through the end connecting pipe 14, and the drainage board is installed in the soil. The straw rope 27 filters the silt and drains the water.

[0042] After drainage is completed, turn the knob 20 in the opposite direction to move the central shaft 1 upward. The diagonal support arm 9 pulls the side rod 11 inward to retract, creating a gap between the frame and the straw rope 27. The adjustable inner frame can be directly pulled out for recycling. The straw rope 27 remains in the soil to degrade naturally, achieving the dual effects of environmental protection and resource reuse.

[0043] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention are implemented according to conventional methods in the art unless otherwise specified or limited.

Claims

1. A drainage device based on biodegradable straw, characterized in that: It includes a straw rope (27) and an adjustable inner frame, wherein the straw rope (27) is wrapped around the outside of the adjustable inner frame; The adjustable inner frame includes a frame body, and multiple side rods (11) are installed around the frame body. The lower ends of the outer sides of the multiple side rods (11) are fixedly connected to flexible end caps (15), and the upper ends of the outer sides of the multiple side rods (11) are fixedly connected to flexible connectors (13). The upper ends of the flexible connectors (13) are fixedly connected to end connecting pipes (14), and the straw rope (27) is wrapped around the outer sides of the multiple side rods (11).

2. The drainage device based on biodegradable straw according to claim 1, characterized in that: The main body of the frame includes a central shaft (1) and a central tube (4). The central shaft (1) can move vertically inside the central tube (4). A central column (25) is installed on the outside of the central shaft (1). Multiple diagonal braces (9) are hinged to the outside of the central column (25). The number of diagonal braces (9) on the outside of the same central column (25) is the same as the number of side rods (11). One end of each of the multiple diagonal braces (9) is hinged to a multiple side rod (11). Multiple gap grooves (7) adapted to the diagonal braces (9) are opened on the periphery of the central tube (4). The diagonal braces (9) pass through the gap grooves (7).

3. A drainage device based on biodegradable straw according to claim 2, characterized in that: Multiple hinge frames (8) are fixedly connected to the outside of the central tube (4). A connecting rod (22) is fixedly connected to the end of the hinge frame (8). A waist groove (10) is opened on the inclined support arm (9). The connecting rod (22) is slidably connected inside the waist groove (10).

4. A drainage device based on biodegradable straw according to claim 2, characterized in that: A threaded rod (5) is fixedly connected to the outer side of the central shaft (1), and a connecting block (6) is fixedly connected to the middle position of the central tube (4). The threaded rod (5) and the connecting block (6) are threadedly connected.

5. A drainage device based on biodegradable straw according to claim 4, characterized in that: The upper end of the central tube (4) is fixedly connected to a top block (12), and a sleeve (3) is rotatably connected to the top block (12). A knob (20) is fixedly connected to the upper end of the sleeve (3). A rib rod (2) is fixedly connected to the upper end of the central shaft (1). The sleeve (3) is slidably connected to the outside of the rib rod (2).

6. A drainage device based on biodegradable straw according to claim 1, characterized in that: An arc-shaped plate (16) is fixedly connected to the outer side of the side rod (11).

7. A drainage device based on biodegradable straw according to claim 6, characterized in that: Both sides of the arc plate one (16) are hinged to the arc plate two (17) through the rotating connector one (18), and two adjacent arc plates two (17) are hinged together through the rotating connector two (19).

8. A drainage device based on biodegradable straw according to any one of claims 1-7, characterized in that: The central column (25) can rotate and slide on the outside of the central shaft (1). An upper limit block (23) and a lower limit block (26) are respectively installed on the outside of the central shaft (1) at the upper and lower sides of the central column (25). A return spring (24) is fixedly connected between the upper limit block (23) and the central column (25).

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