A metal framework cloth bag type biological filler

Abstract

The present invention discloses a metal framework cloth bag type biological filler, which comprises a fixing frame fixed to a sewage tank. A filtering member is arranged on the water inlet side of the fixing frame. Multiple groups of biological fillers are arranged in the fixing frame, and limiting columns are arranged at the four corners of each group of biological fillers. The biological filler comprises a fixed top seat and a fixed bottom frame. The fixed bottom frame is fixedly connected to the bottom of the fixed top seat. A plurality of cross bars are fixedly connected in the fixed bottom frame. A plurality of metal bars are fixedly connected to each cross bar. Nylon cloth is connected between two adjacent cross bars, and the nylon cloth is in a zigzag shape under the support of the plurality of metal bars. The beneficial effects of the present invention are as follows: it can quickly disassemble and install the biological filler, is convenient for fixed installation, is convenient for maintenance and management, and has good structural stability; it is combined into a cloth bag type biological filler to enrich microorganisms by means of a supporting effect, provides a large specific surface area, and can provide an optimal environment for adsorbing pollutants and facilitating the growth of microorganisms.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and particularly to a metal framework cloth-bag type biological filler. Background Art

[0002] Sewage treatment biological fillers, generally referred to as biological fillers or fillers, have the advantages of large specific surface area, light weight, high strength, corrosion resistance, etc. The filler is a place for microorganisms to inhabit and a carrier for biofilms. A biofilm grows on the surface of the filler, and the sewage is purified through the metabolic process of the biofilm. The types of fillers include rigid fillers, flexible fillers, and semi-flexible fillers, etc.

[0003] When the existing rigid, flexible, and semi-flexible fillers are fixedly installed, ropes are generally used to fix them between the upper and lower layers of steel wire meshes. There are disadvantages such as difficult fixed installation and maintenance management, poor structural stability, easy balling and blocking of flexible fillers, and poor biofilm hanging of semi-flexible fillers.

[0004] Therefore, a metal framework cloth-bag type biological filler is proposed to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a metal framework cloth-bag type biological filler, which can quickly disassemble and install the biological filler, is convenient for fixed installation and maintenance management, and has good structural stability; by combining into a cloth-bag type biological filler, it can enrich microorganisms through a supporting effect, provide a large specific surface area, assist in effectively cutting bubbles, improve the oxygen transfer rate and utilization rate, enable full exchange of water, gas and biofilm, and enable efficient treatment of organic matter in water. Its permeability and structural stability are good, it can provide the best environment for adsorbing pollutants and facilitating the growth of microorganisms, and there will be no balling or blocking phenomena, and it has a long service life and corrosion resistance, thus solving the problems in the prior art.

[0006] To achieve the above purpose, the present invention is implemented by adopting the following technical solutions:

[0007] A metal framework cloth pocket type biological filler, comprising a fixing frame fixed to a sewage tank. A filtering member is arranged on the water inlet side of the fixing frame. A plurality of groups of biological fillers are arranged in the fixing frame, and limiting columns are arranged at the four corners of each group of biological fillers. The limiting columns are fixedly connected to the fixing frame. The biological filler comprises a fixed top seat and a fixed bottom frame. The fixed bottom frame is fixedly connected to the bottom of the fixed top seat. A plurality of cross bars are fixedly connected in the fixed bottom frame. The plurality of cross bars are vertically and evenly distributed. A plurality of metal bars are fixedly connected to each cross bar. The plurality of metal bars are horizontally and evenly distributed. Nylon cloth is connected between two adjacent cross bars. The nylon cloth is in a zigzag shape supported by the plurality of metal bars. An installation cavity is formed in the fixed top seat, and a second fixing mechanism is arranged in the installation cavity. A cross-shaped rotating rod for driving the second fixing mechanism to fix the fixed top seat is arranged on the fixed top seat.

[0008] Further, the filtering member comprises a fixed frame, a filter net and two trapezoidal sliding strips. The filter net is fixedly connected in the fixed frame. The two trapezoidal sliding strips are respectively fixedly connected to the two ends of the same side of the fixed frame. Trapezoidal sliding grooves adapted to the trapezoidal sliding strips are formed on the fixing frame, and the trapezoidal sliding strips can slide in the trapezoidal sliding grooves. A receiving groove is formed on the fixing frame, and a fixed box is fixedly connected in the receiving groove. A first fixing mechanism for fixing the trapezoidal sliding strips is arranged in the fixed box. A knob for driving the first fixing mechanism to fix the trapezoidal sliding strips is arranged on the fixed box.

[0009] Further, the first fixing mechanism comprises a rotating rod, a driving bevel gear, a driven bevel gear, a screw rod, a threaded cylinder, a fixing block and a first limiting member. The top end of the rotating rod passes through the fixed box and is fixedly connected to the knob. The rotating rod is rotationally connected to the fixed box through a bearing. The bottom end of the rotating rod is fixedly connected to the driving bevel gear. The driving bevel gear is meshed with the driven bevel gear. The driven bevel gear is fixedly connected to the screw rod. The screw rod is rotationally connected to the fixed box through a bearing. The screw rod is in threaded connection with the threaded cylinder. The threaded cylinder is fixedly connected to the fixing block. A fixing groove adapted to the fixing block is formed on the trapezoidal sliding strip. One end of the fixing block can pass through the fixed box and extend into the fixing groove. The first limiting member is located on one side of the threaded cylinder.

[0010] Further, the first limiting member comprises a first limiting block, a first limiting rod and a first stop block. The first limiting block is fixedly connected to the threaded cylinder. One end of the first limiting rod penetrates through the first limiting block and is fixedly connected to the fixed box. The other end of the first limiting rod is fixedly connected to the first stop block. The first limiting block is slidably connected to the first limiting rod.

[0011] Further, the second fixing mechanism includes a lead screw, a moving rod, two extrusion rods, two second limiting members, and two fixing components. A threaded hole adapted to the lead screw is formed in the fixed top seat. The lead screw is threadedly connected to the fixed top seat. The top end of the lead screw is located outside the fixed top seat and fixedly connected to a cross-shaped rotating rod. The bottom end of the lead screw is rotatably connected to the moving rod through a rotary joint. The two extrusion rods are respectively fixedly connected to both ends of the bottom of the moving rod. The two second limiting members are respectively located at both ends of the moving rod. The two fixing components are respectively located at both ends of the moving rod.

[0012] Further, the second limiting member includes a second limiting block, a second limiting rod, and a second blocking block. The second limiting block is fixedly connected to the moving rod. The top end of the second limiting rod penetrates through the second limiting block and is fixedly connected to the fixed top seat. The bottom end of the second limiting rod is fixedly connected to the second blocking block. The second limiting block is slidably connected to the second limiting rod.

[0013] Further, the fixing component includes an L-shaped rotating rod, a torsion spring, a support rod, a connecting rod, a clamping rod, and a third limiting member. The L-shaped rotating rod abuts against the bottom end of the extrusion rod. The torsion spring is located at one end of the L-shaped rotating rod close to the extrusion rod. The support rod is located at the corner of the L-shaped rotating rod. The connecting rod is located at one end of the L-shaped rotating rod away from the extrusion rod. The connecting rod is movably connected to the clamping rod. The third limiting member is located on one side of the clamping rod. A clamping groove adapted to the clamping rod is formed in the fixed frame. One end of the clamping rod passes through the fixed top seat and extends into the clamping groove.

[0014] Further, one end of the torsion spring abuts against the L-shaped rotating rod. The torsion spring is fixed to the fixed top seat through a fixing member. The top end of the support rod is rotatably connected to the L-shaped rotating rod. The bottom end of the support rod is fixedly connected to the fixed top seat. The L-shaped rotating rod is movably connected to the connecting rod.

[0015] Further, the third limiting member includes two sliders and a slide rail. The two sliders are respectively fixedly connected to both ends of the clamping rod. Both sliders are slidably connected to the slide rail. The slide rail is fixed to the fixed top seat through a support frame.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. By providing a fixed frame, a limiting column, a fixed top seat, and a fixed bottom frame, and utilizing the second fixing mechanism in the fixed top seat, the present invention can quickly disassemble and install biological fillers, with convenient fixed installation, easy maintenance and management, and good structural stability.

[0018] 2. In the present invention, a cross bar, a metal rod and a nylon cloth are arranged inside a fixed bottom frame. The cross bar and the metal rod form a metal skeleton, and the metal skeleton and the nylon cloth are combined into a cloth-bag type biological filler to enrich microorganisms by means of a supporting effect, provide a large specific surface area, assist in effectively cutting bubbles, improve the oxygen transfer rate and utilization rate, enable full exchange of the water-gas biofilm, enable efficient treatment of organic matters in water, have good permeability and structural stability, can provide an optimal environment for adsorbing pollutants and facilitating the growth of microorganisms, and will not show the phenomena of balling and blockage, and have a long service life and corrosion resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a top view of the present invention.

[0021] Figure 3 It is a schematic diagram of the fixed frame of the present invention.

[0022] Figure 4 It is a top view of the fixed frame of the present invention.

[0023] Figure 5 It is a schematic diagram of the fixed top seat and the fixed bottom frame of the present invention.

[0024] Figure 6 In the present invention Figure 2 It is a schematic cross-sectional view of the fixed box A-A direction in the present invention.

[0025] Figure 7 It is a schematic cross-sectional view of the fixed top seat of the present invention.

[0026] Explanation of the reference numerals in the drawings: 1. fixing frame; 2. fixed frame; 3. filter net; 4. trapezoidal slide bar; 5. fixed box; 6. limit post; 7. fixed top seat; 8. fixed bottom frame; 9. cross bar; 10. metal rod; 11. nylon cloth; 12. knob; 13. rotating rod; 14. driving bevel gear; 15. driven bevel gear; 16. screw rod; 17. threaded cylinder; 18. fixed block; 19. first limit block; 20. first limit rod; 21. first stop block; 22. cross-shaped rotating rod; 23. lead screw; 24. moving rod; 25. extrusion rod; 26. second limit block; 27. second limit rod; 28. second stop block; 29. L-shaped rotating rod; 30. torsion spring; 31. support rod; 32. connecting rod; 33. clamping rod; 34. slider; 35. slide rail. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific embodiments of the present invention will be given with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0028] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0029] The embodiments are as follows:

[0030] Please refer to Figure 1-7, a metal framework cloth-bag type biological filler, comprising a fixing frame 1 fixed to a sewage tank. A filtering member is arranged on the water inlet side of the fixing frame 1. The filtering member includes a fixing frame 2, a filter net 3 and two trapezoidal sliding strips 4. A lifting lug is fixedly connected to the fixing frame 2, which facilitates the disassembly and installation of the filtering member. The filter net 3 is fixedly connected inside the fixing frame 2. The filter net 3 can filter impurities in the sewage to avoid affecting the biological membrane. The two trapezoidal sliding strips 4 are respectively fixedly connected to both ends of the same side of the fixing frame 2. Trapezoidal sliding grooves adapted to the trapezoidal sliding strips 4 are formed on the fixing frame 1, and the trapezoidal sliding strips 4 can slide in the trapezoidal sliding grooves. A receiving groove is formed on the fixing frame 1, and a fixing box 5 is fixedly connected inside the receiving groove. A first fixing mechanism for fixing the trapezoidal sliding strip 4 is arranged inside the fixing box 5. A knob 12 for driving the first fixing mechanism to fix the trapezoidal sliding strip 4 is arranged on the fixing box 5. Multiple groups of biological fillers are arranged inside the fixing frame 1, and limiting columns 6 are arranged at the four corners of each group of biological fillers. The limiting columns 6 are fixedly connected to the fixing frame 1. The biological filler includes a fixed top seat 7 and a fixed bottom frame 8. A lifting lug is fixedly connected to the fixed top seat 7, which facilitates the disassembly and installation of the fixed top seat 7. The fixed bottom frame 8 is fixedly connected to the bottom of the fixed top seat 7. A plurality of cross bars 9 are fixedly connected inside the fixed bottom frame 8. The plurality of cross bars 9 are vertically and evenly distributed. A plurality of metal bars 10 are fixedly connected to each cross bar 9. The plurality of metal bars 10 are horizontally and evenly distributed. A nylon cloth 11 is connected between two adjacent cross bars 9. The nylon cloth 11 is serrated under the support of the plurality of metal bars 10. The cross bars 9 and the metal bars 10 form a metal framework. The metal framework and the nylon cloth 11 are combined into a cloth-bag type biological filler to enrich microorganisms by means of a supporting effect, provide a large specific surface area, assist in effectively cutting bubbles, improve the oxygen transfer rate and utilization rate, enable sufficient exchange of water, gas and biological membrane, and enable efficient treatment of organic matters in water. Its permeability and structural stability are good, it can provide an optimal environment for adsorbing pollutants and facilitating the growth of microorganisms, and will not show the phenomena of balling and blockage, and has a long service life and corrosion resistance; an installation cavity is formed inside the fixed top seat 7, and a second fixing mechanism is arranged inside the installation cavity. A cross-shaped rotating rod 22 for driving the second fixing mechanism to fix the fixed top seat 7 is arranged on the fixed top seat 7.

[0031] As an alternative technical solution of the present invention: The first fixing mechanism includes a rotating rod 13, a driving bevel gear 14, a driven bevel gear 15, a screw rod 16, a threaded cylinder 17, a fixing block 18 and a first limiting member. The top end of the rotating rod 13 passes through the fixing box 5 and is fixedly connected to the knob 12. The rotating rod 13 is rotatably connected to the fixing box 5 through a bearing, which facilitates the stable rotation of the rotating rod 13. The bottom end of the rotating rod 13 is fixedly connected to the driving bevel gear 14. The driving bevel gear 14 is meshed with the driven bevel gear 15. The driven bevel gear 15 is fixedly connected to the screw rod 16. The screw rod 16 is rotatably connected to the fixing box 5 through a bearing. The screw rod 16 is threadedly connected to the threaded cylinder 17. The threaded cylinder 17 is fixedly connected to the fixing block 18. A fixing groove adapted to the fixing block 18 is formed on the trapezoidal slide bar 4. One end of the fixing block 18 can pass through the fixing box 5 and extend into the fixing groove, which facilitates the fixing of the trapezoidal slide bar 4. The first limiting member is located on one side of the threaded cylinder 17. The first limiting member includes a first limiting block 19, a first limiting rod 20 and a first stop block 21. The first limiting block 19 is fixedly connected to the threaded cylinder 17. One end of the first limiting rod 20 penetrates through the first limiting block 19 and is fixedly connected to the fixing box 5. The other end of the first limiting rod 20 is fixedly connected to the first stop block 21. The first limiting block 19 is slidably connected to the first limiting rod 20, which can limit the threaded cylinder 17 and facilitate the stable movement of the threaded cylinder 17.

[0032] As an alternative technical solution of the present invention: The second fixing mechanism includes a lead screw 23, a moving rod 24, two pressing rods 25, two second limiting members, and two fixing components. A threaded hole adapted to the lead screw 23 is provided on the fixed top seat 7. The lead screw 23 is threadedly connected to the fixed top seat 7. The structure is simple and convenient for transmission. The top end of the lead screw 23 is located outside the fixed top seat 7 and fixedly connected to the cross-shaped rotating rod 22. The bottom end of the lead screw 23 is rotatably connected to the moving rod 24 through a rotary joint. The structure is reasonable. The two pressing rods 25 are respectively fixedly connected to both ends of the bottom of the moving rod 24. The two second limiting members are respectively located at both ends of the moving rod 24. The two fixing components are respectively located at both ends of the moving rod 24. The second limiting member includes a second limiting block 26, a second limiting rod 27, and a second stopper 28. The second limiting block 26 is fixedly connected to the moving rod 24. The top end of the second limiting rod 27 penetrates through the second limiting block 26 and is fixedly connected to the fixed top seat 7. The bottom end of the second limiting rod 27 is fixedly connected to the second stopper 28. The second limiting block 26 is slidably connected to the second limiting rod 27, which can limit the moving rod 24 and facilitate the stable movement of the moving rod 24. The fixing component includes an L-shaped rotating rod 29, a torsion spring 30, a support rod 31, a connecting rod 32, a clamping rod 33, and a third limiting member. The L-shaped rotating rod 29 abuts against the bottom end of the pressing rod 25. The bottom end of the pressing rod 25 is set to be arc-shaped. The torsion spring 30 is located at one end of the L-shaped rotating rod 29 close to the pressing rod 25. The support rod 31 is located at the corner of the L-shaped rotating rod 29. The connecting rod 32 is located at one end of the L-shaped rotating rod 29 away from the pressing rod 25. One end of the torsion spring 30 abuts against the L-shaped rotating rod 29, which can provide elastic force to the L-shaped rotating rod 29 and facilitate the reset of the L-shaped rotating rod 29. The torsion spring 30 is fixed to the fixed top seat 7 through a fixing member. The top end of the support rod 31 is rotatably connected to the L-shaped rotating rod 29. The bottom end of the support rod 31 is fixedly connected to the fixed top seat 7. The L-shaped rotating rod 29 is movably connected to the connecting rod 32. The connecting rod 32 is movably connected to the clamping rod 33. The third limiting member is located on one side of the clamping rod 33. A clamping groove adapted to the clamping rod 33 is provided on the fixed frame 1. One end of the clamping rod 33 passes through the fixed top seat 7 and extends into the clamping groove, which is convenient for fixing the fixed top seat 7. The third limiting member includes two sliders 34 and a slide rail 35. The two sliders 34 are respectively fixedly connected to both ends of the clamping rod 33. The two sliders 34 are both slidably connected to the slide rail 35. The slide rail 35 is fixed to the fixed top seat 7 through a support frame, which can limit the clamping rod 33 and facilitate the stable movement of the clamping rod 33.

[0033] In summary, when it is necessary to disassemble and clean the filter screen 3, rotate the knob 12. The knob 12 drives the rotating rod 13 to rotate, the rotating rod 13 drives the driving bevel gear 14 to rotate, the driving bevel gear 14 drives the driven bevel gear 15 to rotate, the driven bevel gear 15 drives the screw rod 16 to rotate. The screw rod 16 is threadedly connected to the threaded cylinder 17. The threaded cylinder 17 moves along the length direction of the screw rod 16 under the restriction of the first limiting block 19, the first limiting rod 20 and the first stop block 21. The threaded cylinder 17 drives the fixed block 18 to disengage from the fixing groove on the trapezoidal slide bar 4, releasing the fixation of the trapezoidal slide bar 4, and then the fixed frame 2 can be removed from the fixed frame 1 to clean the filter screen 3. When it is necessary to maintain and manage the biological filler, rotate the cross-shaped rotating rod 22. The cross-shaped rotating rod 22 drives the lead screw 23 to rotate. The lead screw 23 is threadedly connected to the fixed top seat 7. The lead screw 23 screws into the fixed top seat 7, and the lead screw 23 drives the moving rod 24 to move. The moving rod 24 moves along the length direction of the lead screw 23 under the restriction of the second limiting block 26, the second limiting rod 27 and the second stop block 28. The moving rod 24 drives the two pressing rods 25 to move downward simultaneously. The two pressing rods 25 respectively press the two L-shaped rotating rods 29 downward. After being pressed, the two L-shaped rotating rods 29 rotate on the two support rods 31 respectively. The two L-shaped rotating rods 29 respectively press the two torsion springs 30. At the same time, the two L-shaped rotating rods 29 respectively drive the two connecting rods 32 to move. The two connecting rods 32 respectively drive the two clamping rods 33 to move. The two clamping rods 33 move along the length direction of the slide rail 35 under the restriction of the slider 34 and the slide rail 35. The clamping rods 33 disengage from the clamping grooves on the fixed frame 1, releasing the fixation of the fixed top seat 7, and then the fixed top seat 7 and the fixed bottom frame 8 can be removed from the fixed frame 1, which is convenient for maintenance and management.

[0034] The foregoing shows and describes the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes within the meaning and scope of the equivalent elements of the claims in the present invention, and any reference signs in the claims should not be regarded as limiting the claimed rights.

[0035] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A metal framework cloth bag type biological filler, including a fixing frame fixed to a sewage tank, characterized in that: A filter element is provided on the water inlet side of the fixing frame. A plurality of groups of biological fillers are arranged in the fixing frame, and limit posts are arranged at the four corners of each group of biological fillers. The limit posts are fixedly connected to the fixing frame. The biological filler includes a fixed top seat and a fixed bottom frame. The fixed bottom frame is fixedly connected to the bottom of the fixed top seat. A plurality of cross bars are fixedly connected in the fixed bottom frame. The plurality of cross bars are evenly distributed vertically. A plurality of metal bars are fixedly connected to each cross bar. The plurality of metal bars are evenly distributed horizontally. A nylon cloth is connected between two adjacent cross bars. The nylon cloth is serrated under the support of a plurality of metal bars. An installation cavity is formed in the fixed top seat, and a second fixing mechanism is arranged in the installation cavity. A cross-shaped rotating rod for driving the second fixing mechanism to fix the fixed top seat is arranged on the fixed top seat. The second fixing mechanism includes a lead screw, a moving rod, two extrusion rods, two second limiting members and two fixing components. A threaded hole adapted to the lead screw is formed in the fixed top seat. The lead screw is threadedly connected to the fixed top seat. The top end of the lead screw is located outside the fixed top seat and is fixedly connected to the cross-shaped rotating rod. The bottom end of the lead screw is rotatably connected to the moving rod through a rotary joint. The two extrusion rods are respectively fixedly connected to both ends of the bottom of the moving rod. The two second limiting members are respectively located at both ends of the moving rod. The two fixing components are respectively located at both ends of the moving rod. The fixing component includes an L-shaped rotating rod, a torsion spring, a support rod, a connecting rod, a clamping rod and a third limiting member. The L-shaped rotating rod abuts against the bottom end of the extrusion rod. The torsion spring is located at one end of the L-shaped rotating rod close to the extrusion rod. The support rod is located at the corner of the L-shaped rotating rod. The connecting rod is located at one end of the L-shaped rotating rod far from the extrusion rod. The connecting rod is movably connected to the clamping rod. The third limiting member is located on one side of the clamping rod. A clamping groove adapted to the clamping rod is formed in the fixing frame. One end of the clamping rod passes through the fixed top seat and extends into the clamping groove. One end of the torsion spring abuts against the L-shaped rotating rod. The torsion spring is fixedly connected to the fixed top seat through a fixing member. The top end of the support rod is rotatably connected to the L-shaped rotating rod. The bottom end of the support rod is fixedly connected to the fixed top seat. The L-shaped rotating rod is movably connected to the connecting rod. The third limiting member includes two sliders and a slide rail. The two sliders are respectively fixedly connected to both ends of the clamping rod. Both sliders are slidably connected to the slide rail. The slide rail is fixedly connected to the fixed top seat through a support frame.

2. The metal framework cloth bag type biological filler according to claim 1, characterized in that: The filter element includes a fixed frame, a filter net and two trapezoidal sliding strips. The filter net is fixedly connected in the fixed frame. The two trapezoidal sliding strips are respectively fixedly connected to both ends of the same side of the fixed frame. A trapezoidal sliding groove adapted to the trapezoidal sliding strip is formed in the fixing frame, and the trapezoidal sliding strip can slide in the trapezoidal sliding groove. A receiving groove is formed in the fixing frame, and a fixed box is fixedly connected in the receiving groove. A first fixing mechanism for fixing the trapezoidal sliding strip is arranged in the fixed box. A knob for driving the first fixing mechanism to fix the trapezoidal sliding strip is arranged on the fixed box.

3. The metal skeleton cloth bag type biological filler according to claim 2, characterized in that: The first fixing mechanism includes a rotating rod, a driving bevel gear, a driven bevel gear, a screw rod, a threaded cylinder, a fixing block and a first limiting member. The top end of the rotating rod passes through the fixing box and is fixedly connected to the knob. The rotating rod is rotationally connected to the fixing box through a bearing. The bottom end of the rotating rod is fixedly connected to the driving bevel gear. The driving bevel gear is meshed and connected to the driven bevel gear. The driven bevel gear is fixedly connected to the screw rod. The screw rod is rotationally connected to the fixing box through a bearing. The screw rod is threadedly connected to the threaded cylinder. The threaded cylinder is fixedly connected to the fixing block. A fixing groove adapted to the fixing block is formed on the trapezoidal slide bar. One end of the fixing block can pass through the fixing box and extend into the fixing groove. The first limiting member is located on one side of the threaded cylinder.

4. The metal framework cloth bag type biological filler according to claim 3, wherein: The first limiting member includes a first limiting block, a first limiting rod and a first stop block. The first limiting block is fixedly connected to the threaded cylinder. One end of the first limiting rod penetrates through the first limiting block and is fixedly connected to the fixing box. The other end of the first limiting rod is fixedly connected to the first stop block. The first limiting block is slidably connected to the first limiting rod.

5. The metal skeleton cloth bag type biological filler according to claim 1, characterized in that: The second limiting member includes a second limiting block, a second limiting rod and a second stop block. The second limiting block is fixedly connected to the moving rod. The top end of the second limiting rod penetrates through the second limiting block and is fixedly connected to the fixed top seat. The bottom end of the second limiting rod is fixedly connected to the second stop block. The second limiting block is slidably connected to the second limiting rod.

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