Solid waste regeneration type concealed pipe drainage inverted filter layer and laying method

Abstract

The invention relates to the technical field of measurement fixing devices, in particular to a solid waste regeneration type concealed pipe drainage inverted filter and a laying method.The solid waste regeneration type concealed pipe drainage inverted filter comprises an aggregate layer and a fine material layer, the aggregate layer is located below the fine material layer, the aggregate layer is located above a concealed pipe, and the aggregate layer and the fine material layer are integrally narrow in the lower portion and wide in the upper portion; geotechnical cloth 2 is laid among the aggregate layer, the fine material layer and the original soil layer, and the aggregate layer is in contact with the upper half part of the outer side wall of the concealed pipe. According to the invention, through the arrangement of the reverse osmosis layer, the reverse osmosis layer is composed of the aggregate layer and the fine material, the water conductivity of the reverse osmosis layer is larger than that of soil, water in the soil above the reverse osmosis layer can be absorbed into the reverse osmosis layer, and the trumpet-shaped arrangement increases the contact interface between the reverse osmosis layer and the soil, so that the reverse osmosis layer at the upper part of the concealed pipe can rapidly reach saturation; water in the reverse osmosis layer is drained into the concealed pipe under the action of gravity and pressure potential, so that the water content of soil is reduced quickly, and a good drainage effect is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of measuring fixtures, in particular to a solid waste regeneration type concealed pipe drainage filter layer and a laying method thereof. Background Art

[0002] In the underground pipe drainage project, in order to prevent the soil from penetrating into the underground pipe along with the water, causing soil loss, an inverted filter layer will be set outside the underground pipe. After the inverted filter layer is set, the infiltrated water will not carry away the soil in the foundation when it flows out, thereby preventing the occurrence of pipe bursts and soil flow. The conventional underground pipe filter layer laying method is to lay a fine sand filter layer around the underground pipe. When working, the soil moisture penetrates along the filter layer, and a bypass phenomenon occurs, which gathers at the bottom of the underground pipe. This is mainly because the filter layer wrapping the underground pipe is a porous medium of the same texture, forming a continuous field of soil-water potential gradient around the underground pipe, and the bypass movement of water is easier than draining into the underground pipe. Once the water bypasses to the bottom of the underground pipe, it can only rely on the effect of pressure potential to enter the underground pipe, affecting the drainage efficiency of the underground pipe. In addition, when laying the existing multi-layer inverted filter layer, the previous layer needs to be leveled and compacted before the next layer can be laid, so the laying is generally done in sequence, which is not efficient. Summary of the Invention

[0003] The purpose of the present invention is to provide a solid waste regeneration type concealed pipe drainage filter layer and a laying method to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A solid waste regeneration type concealed pipe drainage filter layer includes an aggregate layer and a fine material layer. The aggregate layer is located below the fine material layer, and the aggregate layer is located above the concealed pipe. The aggregate layer and the fine material layer are generally narrow at the bottom and wide at the top. A geotextile is laid between the aggregate layer, the fine material layer and the original soil layer. The aggregate layer is in contact with the upper half of the outer wall of the concealed pipe. The coarse aggregate is made of ceramsite mixed with furfural slag, and the ceramsite is made of coal gangue.

[0006] A method for laying a drainage filter layer, the specific steps are as follows:

[0007] Step 1: Dig and lay a ditch, with the bottom of the ditch narrowing from top to bottom;

[0008] Step 2: Lay geotextile at the bottom of the ditch and lay the concealed pipe at the bottom of the ditch, with the concealed pipe located above the geotextile;

[0009] Step 3: Use a double-layer laying device to lay the coarse aggregate and fine material on top of the concealed pipe in sequence, and level and press down the aggregate layer and fine material layer while laying;

[0010] Step 4: Fill the ditch with soil and level it.

[0011] Furthermore, the double-layer laying device includes:

[0012] A main frame is provided with a connecting seat at one end, the main frame is connected to the traction equipment through the connecting seat, support wheels are provided on both sides of the other end of the main frame, an upper bracket is fixedly connected to the top of the main frame, two unloading units are fixedly connected to the upper bracket, a sliding frame is fixedly installed at the bottom of the main frame, a cross frame is fixedly connected to the middle position of the sliding frame, and a transmission unit is installed on the cross frame;

[0013] The driving mechanism is fixedly installed in the middle position of the main frame;

[0014] There are two leveling mechanisms, which are slidably mounted on a sliding frame. The transmission unit is used to drive the two leveling mechanisms to move toward each other. The leveling mechanism includes a leveling mold, and the driving mechanism is used to drive the leveling mold to move up and down.

[0015] Furthermore, the leveling mechanism includes two side slides, which are slidably connected to the slide frame. The leveling mechanism also includes a fixed rod, both ends of the fixed rod are fixedly connected to an adjusting rod unit, and the bottom end of the adjusting rod unit is detachably fixed to the leveling mold.

[0016] Furthermore, a gear rod is fixedly connected to one side of the side sliding frame, and the transmission unit includes a drive motor 1, which is fixedly installed at the position of the cross frame. Both ends of the cross frame are rotatably sleeved with a shaft rod, and the bottom end of the shaft rod is fixedly connected with a gear. The top end of the shaft rod is transmission-connected to the output end of the drive motor 1, and the gear and the gear rod are meshed for transmission.

[0017] Furthermore, the driving mechanism includes a second driving motor and two curved rods, a cross frame is fixedly connected to the middle position of the main frame, a sleeve one is rotatably connected to the middle position of the cross frame, one end of the curved rod is slidingly sleeved with the sleeve one, the second driving motor is fixedly installed on the other end of the main frame, the output end of the second driving motor is fixedly connected to a core rod, the other end of a curved rod is fixedly connected to a core rod, the core rod is slidingly sleeved with the second sleeve rod, the curved part of the curved rod is rotatably connected to a connecting rod, the bottom end of the connecting rod is rotatably connected to the middle position of the adjacent fixed rod, two support frames are fixedly connected between the two side sliding frames, the top end of the support frame is rotatably connected to the adjacent curved rod position, and the two fixed rods are located on both sides of the adjacent support frames.

[0018] Furthermore, the top view profile of the leveling mold is V-shaped, and the bottom end of the leveling mold converges toward the middle; the adjusting rod unit includes a sleeve rod three, the sleeve rod three is fixedly connected to the fixed rod, the outer side wall of the sleeve rod three is slidably sleeved with a sleeve rod four, and the bottom end of the sleeve rod four is detachably fixedly connected to the leveling mold.

[0019] Furthermore, the unloading unit includes a hopper, the hopper is fixedly connected to the upper bracket, the bottom end of the hopper is fixedly connected to a unloading pipe, and the top end of the unloading pipe is fixedly installed with a unloading valve.

[0020] Furthermore, the inner wall of the sleeve rod three is screwed and connected to a limit rod, the top end of the limit rod is fixedly connected to a pulley, a synchronous belt is connected for transmission between the two pulleys, and the top end of the limit rod is fixedly connected to a knob.

[0021] Furthermore, a long groove portion is provided on the outer side wall of the sleeve rod four, a fixed block is fixedly connected to the bottom end of the sleeve rod three, the fixed block and the long groove portion are slidably connected, a movable block is fixedly connected to the bottom of the fixed block, a plurality of round rods are fixedly connected to the top surface of the movable block, the round rods and the fixed block are slidably plugged, one side of the fixed block is fixedly connected to a rotating seat one, one end of the rotating seat is rotatably connected to a screw, one side of the movable block is fixedly connected to a rotating seat two, and the screw is screwed together with one end of the rotating seat two.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. By setting up the reverse osmosis layer, the bottom of the reverse osmosis layer is only in contact with the upper half of the concealed pipe. Since the reverse osmosis layer is composed of an aggregate layer and fine materials, its water conductivity is greater than that of the soil, and it will absorb the moisture in the soil above the reverse osmosis layer into the reverse osmosis layer. The trumpet-shaped setting increases the contact interface between the reverse osmosis layer and the soil, which can quickly saturate the reverse osmosis layer above the concealed pipe. The moisture in the reverse osmosis layer is drained into the concealed pipe under the action of gravity and pressure potential, thereby reducing the soil moisture content faster and achieving a good drainage effect.

[0024] 2. Through the setting of the double-layer paving device, when the main frame moves forward, the driving motor drives the two shafts to rotate, and the shafts drive the two leveling mechanisms to slide toward each other through gears. When the two leveling mechanisms move away from each other, the rear leveling mechanism is in its original position, and the front leveling mechanism moves forward. When the two leveling mechanisms approach each other, the front leveling mechanism is in its original position, and the rear leveling mechanism moves forward. When the leveling mechanism moves forward, the leveling mold levels the accumulated materials. Then, when the leveling mechanism is in its original position, the driving mechanism drives the leveling mold to move downward, thereby pressing the newly leveled part. Through the front and rear settings of the two leveling mechanisms, the front leveling mechanism levels and presses down the aggregate layer, and the rear leveling mechanism levels and presses down the fine material layer, thereby realizing the simultaneous paving of the aggregate layer and the fine material layer, thereby improving the paving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic diagram of the reverse osmosis layer structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the structure of the double-layer laying device in the present invention in use;

[0027] Figure 3 This is a schematic diagram of the test structure of the double-layer laying device in the present invention;

[0028] Figure 4 It is a schematic structural diagram of the double-layer laying device in the present invention;

[0029] Figure 5 This is a schematic diagram of the main frame structure from above in the present invention;

[0030] Figure 6 It is a schematic diagram of the sliding frame structure of the present invention;

[0031] Figure 7 It is a schematic diagram of the driving mechanism structure of the present invention;

[0032] Figure 8 It is a schematic diagram of the structure of the leveling mechanism in the present invention;

[0033] Figure 9 It is a schematic diagram of the structure of the adjusting rod unit in the present invention;

[0034] Figure 10 It is a schematic diagram of the exploded structure of the regulating rod unit in the present invention.

[0035] Figure: 1, concealed pipe; 2, geotextile; 3, aggregate layer; 4, fine material layer; 100, main frame; 110, upper support; 120, discharge unit; 121, hopper; 122, discharge valve; 123, discharge pipe; 130, support wheel; 140, cross frame; 150, sliding frame; 160, cross frame; 170, transmission unit; 171, drive motor 1; 172, shaft; 173, gear; 200, drive mechanism; 210, drive motor 2; 220, sleeve Tube one; 230, curved rod; 240, connecting rod; 250, sleeve rod two; 260, core rod; 300, leveling mechanism; 310, side sliding frame; 311, gear rod; 320, support frame; 330, fixed rod; 340, adjusting rod unit; 341, limit rod; 342, pulley; 343, sleeve rod three; 344, screw; 345, sleeve rod four; 346, long groove; 347, moving block; 348, round rod; 349, fixed block; 350, leveling mold. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] See also Figure 1 In an embodiment of the present invention, a solid waste regeneration type concealed pipe drainage filter layer is characterized in that it includes an aggregate layer 3 and a fine material layer 4. The aggregate layer 3 is located below the fine material layer 4, and the aggregate layer 3 is located above the concealed pipe 1. The aggregate layer 3 and the fine material layer 4 are generally narrow at the bottom and wide at the top. A geotextile 2 is laid between the aggregate layer 3, the fine material layer 4 and the original soil layer. The aggregate layer 3 is in contact with the upper half of the outer wall of the concealed pipe 1. The coarse aggregate is made of ceramsite mixed with furfural slag, and the ceramsite is made of coal gangue.

[0038] Specifically, the present invention uses a trumpet-shaped setting of the reverse osmosis layer so that the bottom of the reverse osmosis layer only contacts the upper half of the concealed pipe 1. Since the reverse osmosis layer is composed of an aggregate layer 3 and fine materials, its water conductivity is larger than that of the soil, and the moisture in the soil above the reverse osmosis layer will be absorbed into the reverse osmosis layer. The trumpet-shaped setting increases the contact interface between the reverse osmosis layer and the soil, which can quickly saturate the reverse osmosis layer above the concealed pipe 1. The moisture in the reverse osmosis layer is drained into the concealed pipe 1 under the action of gravity and pressure potential, thereby causing the soil moisture content to drop faster and achieving a good drainage effect.

[0039] Example 1

[0040] like Figure 1 As shown, in this embodiment, a method for laying a drainage filter layer includes the following specific steps:

[0041] Step 1: Dig and lay a ditch, with the bottom of the ditch narrowing from top to bottom;

[0042] Step 2: Lay the geotextile 2 at the bottom of the ditch, and lay the concealed pipe 1 at the bottom of the ditch, with the concealed pipe 1 located above the geotextile 2;

[0043] Step 3: Use a double-layer laying device to lay the coarse aggregate and fine material on top of the concealed pipe 1 in sequence, and level and press down the aggregate layer 3 and the fine material layer 4 while laying;

[0044] Step 4: Fill the ditch with soil and level it.

[0045] In this embodiment, in order to adopt the method of laying the aggregate layer 3 and the fine material layer 4 simultaneously, the possibility of soil being mixed into the space between the aggregate layer 3 and the fine material layer 4 during the laying process is effectively reduced, while the laying efficiency is improved.

[0046] like Figures 2 to 8 The present invention also provides a double-layer paving device, including a main frame 100, a driving mechanism 200, and a leveling mechanism 300. A connecting seat is installed at one end of the main frame 100, and the main frame 100 is connected to the traction equipment through the connecting seat. Support wheels 130 are installed on both sides of the other end of the main frame 100. An upper bracket 110 is fixedly connected to the top of the main frame 100, and two unloading units 120 are fixedly connected to the upper bracket 110. A sliding frame 150 is fixedly installed below the main frame 100, and a cross frame 160 is fixedly connected to the middle position of the sliding frame 150. A transmission unit 170 is installed on the cross frame 160. The driving mechanism 200 is fixedly installed at the middle position of the main frame 100. There are two leveling mechanisms 300, and the leveling mechanisms 300 are slidably installed on the sliding frame 150. The transmission unit 170 is used to drive the two leveling mechanisms 300 to move toward each other.

[0047] The leveling mechanism 300 includes a leveling mold 350, and the driving mechanism 200 is used to drive the leveling mold 350 to move up and down. The leveling mechanism 300 includes two side slides 310, and the side slides 310 are slidably connected to the slide 150. The leveling mechanism 300 also includes a fixed rod 330, and both ends of the fixed rod 330 are fixedly connected with an adjusting rod unit 340. The bottom end of the adjusting rod unit 340 is detachably fixed to the leveling mold 350. One side of the side slide 310 is fixedly connected with a gear rod 311. The transmission unit 170 includes a driving motor 171, and the driving motor 171 is fixedly installed at the position of the cross frame 160. Both ends of the cross frame 160 are rotatably sleeved with a shaft rod 172, and the bottom end of the shaft rod 172 is fixedly connected with a gear 173. The top end of the shaft rod 172 is transmission-connected to the output end of the driving motor 171, and the gear 173 is meshed with the gear rod 311 for transmission.

[0048] During specific implementation, the main frame 100 is driven to move forward along the ditch by an external traction device, the coarse aggregate is loaded into the front unloading unit 120, and the fine material is added to the rear unloading unit 120. The unloading unit 120 releases the material into the ditch. When the main frame 100 moves forward, the driving motor 171 drives the two shafts 172 to rotate, and the shafts 172 drive the two leveling mechanisms 300 to slide toward each other through the gear 173. When the two leveling mechanisms 300 move away from each other, the rear leveling mechanism 300 moves backward relative to the main frame 100, and the forward movement of the main frame 100 is offset, so that the rear leveling mechanism 300 is in its original position, and the front leveling mechanism 300 is in its original position. The leveling mechanism 300 moves forward. When the two leveling mechanisms 300 approach each other, the front leveling mechanism 300 is in its original position, and the rear leveling mechanism 300 moves forward. When the leveling mechanism 300 moves forward, the leveling mold 350 levels the accumulated materials. Then, when the leveling mechanism 300 is in its original position, the driving mechanism 200 drives the leveling mold 350 to move downward, thereby pressing the newly leveled part. Through the front and rear settings of the two leveling mechanisms 300, the front leveling mechanism 300 levels and presses down the aggregate layer 3, and the rear leveling mechanism 300 levels and presses down the fine material layer 4, thereby realizing the simultaneous paving of the aggregate layer 3 and the fine material layer 4.

[0049] Example 2

[0050] like Figures 6 to 10 As shown, in this embodiment, the driving mechanism 200 includes a second driving motor 210 and two curved rods 230. The middle position of the main frame 100 is fixedly connected to the cross frame 140. The middle position of the cross frame 140 is rotatably connected to the first sleeve 220. One end of the curved rod 230 is slidably connected to the first sleeve 220. The second driving motor 210 is fixedly installed at the other end of the main frame 100. The output end of the second driving motor 210 is fixedly connected to the core rod 260. The other end of one curved rod 230 is fixedly connected to the core rod 260. The core rod 260 The curved portion of the curved rod 230 is rotatably connected to the connecting rod 240. The bottom end of the connecting rod 240 is rotatably connected to the middle position of the adjacent fixed rod 330. Two support frames 320 are fixedly connected between the two side sliding frames 310. The top ends of the support frames 320 are rotatably connected to the positions of the adjacent curved rods 230. The two fixed rods 330 are located on both sides of the adjacent support frames 320. The top view of the flattening mold 350 is V-shaped, and the bottom end of the flattening mold 350 converges toward the middle.

[0051] The adjusting rod unit 340 includes a sleeve rod three 343, which is fixedly connected to the fixed rod 330, and the outer wall of the sleeve rod three 343 is slidably sleeved with a sleeve rod four 345. The bottom end of the sleeve rod four 345 is detachably fixedly connected to the flat mold 350. The unloading unit 120 includes a hopper 121, which is fixedly connected to the upper bracket 110. The bottom end of the hopper 121 is fixedly connected to the unloading pipe 123, and the top position of the unloading pipe 123 is fixedly installed with a unloading valve member 122. The inner wall of the sleeve rod three 343 is screwed and connected to the limit rod 341. The top of the limit rod 341 is fixedly connected with a pulley 342. The transmission between the two pulleys 342 It is connected to a synchronous belt, a knob is fixed to the top of the limit rod 341, a long groove 346 is provided on the outer wall of the sleeve rod four 345, and a fixed block 349 is fixed to the bottom end of the sleeve rod three 343, which is slidably connected to the fixed block 349, and a movable block 347 is fixed to the bottom of the fixed block 349, and a plurality of round rods 348 are fixed to the top surface of the movable block 347, which are slidably plugged into the fixed block 349, and a rotating seat 1 is fixed to one side of the fixed block 349, and one end of the rotating seat is rotatably connected to a screw 344, and a rotating seat 2 is fixed to one side of the movable block 347, and the screw 344 is screwed together with one end of the rotating seat 2.

[0052] When the fixed rod 330 moves downward, the limiting rod 341 and the sleeve rod 345 are in conflict with each other, and then the fixed rod 330 continues to move downward to drive the flattening mold 350 to be squeezed downward. When the fixed rod 330 moves upward, the limiting rod 341 and the sleeve rod 343 move upward until the round rod 348 conflicts with the inner top surface of the long groove portion 346. Then the fixed rod 330 drives the sleeve rod 345 and the sleeve rod 345 to move in the opposite direction. The leveling mold 350 moves upward, and by rotating the limit rod 341, the distance between the bottom end of the limit rod 341 and the bottom end of the sleeve rod three 343 is adjusted, thereby adjusting the downward position of the leveling mold 350, and rotating the screw 344 to make the movable block 347 move up and down relative to the fixed block 349, thereby adjusting the distance between the top end of the round rod 348 and the bottom end of the sleeve rod three 343, and then adjusting the position of the leveling mold 350 that is driven to move upward when the sleeve rod three 343 moves upward, thereby realizing the adjustment of the range of the leveling mold 350 that moves up and down, so that the two leveling molds 350 are staggered up and down, which is convenient for the leveling mold 350 at the rear to lay the fine material layer 4 on the basis of the aggregate layer 3, and the setting of the pulley 342 facilitates the synchronous rotation of the two limit rods 341.

[0053] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0054] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A solid waste regeneration type concealed pipe drainage filter layer, characterized in that: The invention comprises an aggregate layer (3) and a fine material layer (4), wherein the aggregate layer (3) is located below the fine material layer (4), and the aggregate layer (3) is located above the concealed pipe 1. The aggregate layer (3) and the fine material layer (4) are narrow at the bottom and wide at the top as a whole. A geotextile (2) is laid between the aggregate layer (3), the fine material layer (4) and the original soil layer. The aggregate layer (3) contacts the upper half of the outer wall of the concealed pipe 1. The coarse aggregate is made of ceramsite mixed with furfural slag, and the ceramsite is made of coal gangue.

2. The method for laying a concealed pipe drainage filter layer according to claim 1, characterized in that: The specific steps are as follows: Step 1: Dig and lay a ditch, with the bottom of the ditch narrowing from top to bottom; Step 2: laying a geotextile (2) at the bottom of the ditch, and laying a concealed pipe 1 at the bottom of the ditch, with the concealed pipe 1 located above the geotextile (2); Step 3: Using a double-layer laying device, coarse aggregate and fine material are laid on top of the concealed pipe 1 in sequence, and the aggregate layer (3) and the fine material layer (4) are leveled and pressed down during the laying process; Step 4: Fill the ditch with soil and level it.

3. The method for laying a concealed pipe drainage filter layer according to claim 1, characterized in that: The double-layer laying device comprises: A main frame (100) is provided with a connecting seat at one end, the main frame (100) is connected to the traction equipment via the connecting seat, support wheels (130) are provided on both sides of the other end of the main frame (100), an upper bracket (110) is fixedly connected to the top of the main frame (100), two unloading units (120) are fixedly connected to the upper bracket (110), a sliding frame (150) is fixedly installed below the main frame (100), a cross frame (160) is fixedly connected to the middle position of the sliding frame (150), and a transmission unit (170) is installed on the cross frame (160); A driving mechanism (200) is fixedly mounted in the middle of the main frame (100); There are two leveling mechanisms (300), the leveling mechanisms (300) are slidably mounted on a sliding frame (150), the transmission unit (170) is used to drive the two leveling mechanisms (300) to move toward each other, the leveling mechanism (300) includes a leveling mold (350), and the driving mechanism (200) is used to drive the leveling mold (350) to move up and down.

4. The method for laying a concealed drainage filter layer according to claim 1, characterized in that: The leveling mechanism (300) includes two side slides (310), the side slides (310) are slidably connected to the slide frame (150), and the leveling mechanism (300) also includes a fixed rod (330), both ends of the fixed rod (330) are fixedly connected to an adjusting rod unit (340), and the bottom end of the adjusting rod unit (340) is detachably fixedly connected to the leveling mold (350).

5. The method for laying a concealed drainage filter layer according to claim 1, characterized in that: A gear rod (311) is fixedly connected to one side of the side sliding frame (310), and the transmission unit (170) includes a driving motor (171), which is fixedly installed at the position of the cross frame (160). Both ends of the cross frame (160) are rotatably sleeved with a shaft rod (172), and the bottom end of the shaft rod (172) is fixedly connected to a gear (173). The top end of the shaft rod (172) is transmission-connected to the output end of the driving motor (171), and the gear (173) is meshed with the gear rod (311) for transmission.

6. The method for laying a concealed drainage filter layer according to claim 1, characterized in that: The driving mechanism (200) includes a second driving motor (210) and two curved rods (230). The middle position of the main frame (100) is fixedly connected to a cross frame (140). The middle position of the cross frame (140) is rotatably connected to a first sleeve (220). One end of the curved rod (230) is slidably connected to the first sleeve (220). The second driving motor (210) is fixedly installed on the other end of the main frame (100). The output end of the second driving motor (210) is fixedly connected to a core rod (260). The other end of one curved rod (230) is fixedly connected to the output end of the second driving motor (210). A core rod (260) is connected, and the core rod (260) is slidably sleeved with the sleeve rod (250). The curved portion of the curved rod (230) is rotatably connected to the connecting rod (240). The bottom end of the connecting rod (240) is rotatably connected to the middle position of the adjacent fixed rod (330). Two support frames (320) are fixedly connected between the two side sliding frames (310). The top end of the support frame (320) is rotatably connected to the position of the adjacent curved rod (230). The two fixed rods (330) are located on both sides of the adjacent support frame (320).

7. The method for laying a concealed drainage filter layer according to claim 1, characterized in that: The top view profile of the flattening mold (350) is V-shaped, and the bottom end of the flattening mold (350) converges toward the middle. The adjusting rod unit (340) includes a sleeve rod three (343), which is fixedly connected to the fixed rod (330). The outer wall of the sleeve rod three (343) is slidably sleeved with a sleeve rod four (345), and the bottom end of the sleeve rod four (345) is detachably fixedly connected to the flattening mold (350).

8. The method for laying a concealed pipe drainage filter layer according to claim 1, characterized in that: The unloading unit (120) includes a hopper (121), the hopper (121) is fixedly connected to the upper bracket (110), the bottom end of the hopper (121) is fixedly connected to a unloading pipe (123), and the top end of the unloading pipe (123) is fixedly installed with a unloading valve (122).

9. The method for laying a concealed drainage filter layer according to claim 1, characterized in that: The inner wall of the sleeve rod (343) is screwed and connected to the limit rod (341), the top end of the limit rod (341) is fixedly connected to a pulley (342), a synchronous belt is connected between the two pulleys (342), and the top end of the limit rod (341) is fixedly connected to a knob.

10. The method for laying a concealed drainage filter layer according to claim 1, characterized in that: The outer wall of the sleeve rod four (345) is provided with a long groove portion (346), the bottom end of the sleeve rod three (343) is fixedly connected with a fixed block (349), the fixed block (349) and the long groove portion (346) are slidably connected, the bottom of the fixed block (349) is fixedly connected with a movable block (347), the top surface of the movable block (347) is fixedly connected with a plurality of round rods (348), the round rods (348) and the fixed block (349) are slidably plugged, one side of the fixed block (349) is fixedly connected with a rotating seat one, one end of the rotating seat is rotatably connected with a screw rod (344), one side of the movable block (347) is fixedly connected with a rotating seat two, the screw rod (344) is screwed and connected to one end of the rotating seat two.

Images