CN112889595A

CN112889595A - Turf cultivation device for cleaning domestic sludge compost and substrate thereof

Info

Publication number: CN112889595A
Application number: CN202110043072.4A
Authority: CN
Inventors: 王和法; 何国斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-13
Filing date: 2021-01-13
Publication date: 2021-06-04

Abstract

The invention discloses a turf cultivation device for cleaning domestic sludge compost and a substrate thereof, belonging to the technical field of cultivation of matrix flowers, grass and turf. According to the invention, after the seedling placing seeds are placed in the cultivation mechanism fixing seats, water can be discharged through the liquid leakage holes at the corresponding positions on the two sides, the water discharge and drainage amount can be adjusted according to different water storage requirements of flowers, plants and turf, and further the cultivation requirements under different conditions can be adapted, so that clean domestic sludge compost can be directly arranged on the top of the partition plate and sealed through the top cover plate, and meanwhile, the water is guided during composting, the seedling burning condition is avoided, and the integral use requirement is effectively met.

Description

Turf cultivation device for cleaning domestic sludge compost and substrate thereof

Technical Field

The invention belongs to the technical field of matrix flower and grass and turf cultivation, and particularly relates to a turf cultivation device for cleaning domestic sludge compost and a matrix thereof.

Background

The seedling cultivation means seedling cultivation, and the seedling cultivation means seedling cultivation in a nursery, a hotbed or a greenhouse for transplanting to the land for planting, in the traditional flower, grass and turf cultivation and planting process, because the risk resistance of the flower, grass and turf seedlings is low, the seedlings generally need to be transferred after being bred and cultured and the risk resistance of the seedlings is enhanced to improve the planting survival rate, soil seeds selected during seedling cultivation are generally important, the nutrient absorption capacity of the flower, grass and turf is not enough to the traditional land fertility, the allocation cost is high, the fertilized land easily causes seedling burning phenomenon, the use requirement cannot be well met, and the fertile substrate is needed for cultivation.

The existing substrate is influenced by compost such as fallen leaves and branches, the substrate can be used after composting is completed generally, the existing domestic sludge produced by domestic waste compost is used, nutrient substances in the sludge can meet the use requirements of cultivation of flowers, plants and turf, but the domestic sewage is more in the sludge, the direct dumping is easy to cause the rotting of roots of the flowers, the plants and the turf due to the fact that water is more to burn seedlings above the flowers, the plants of the compost which is matched with the domestic sludge and cannot be well cultivated by the existing cultivation device, and the use requirements cannot be well met.

Disclosure of Invention

The invention aims to: the turf cultivation device and the substrate for cleaning the domestic sludge compost are provided in order to solve the problems that the domestic sludge produced by the domestic waste compost and nutrient substances in the sludge can meet the use requirements of cultivation of flowers, plants and turf, but the domestic sewage in the sludge is more, the sludge is directly poured above the flowers, plants and turf, the roots of the flowers, plants and turf are easy to rot due to seedling burning caused by more water, and the planting requirements of the domestic sludge compost cannot be well adapted.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a turf cultivation device with clean domestic sludge compost, includes the placement mechanism, placement mechanism top swing joint has cultivation mechanism, cultivation mechanism top both sides all are equipped with the closing mechanism, the closing mechanism top is equipped with stop gear, be equipped with culture medium in the placement mechanism.

As a further description of the above technical solution:

the placing mechanism comprises a base, drain holes are formed in two sides of an inner cavity of the base, a jacket is fixedly connected to the top of the base, the inner cavity of the jacket is attached to the outer wall of the cultivation mechanism, a liquid drainage seat is attached to the bottom of the inner cavity of the base, a rotating seat is connected to the liquid drainage seat in a sliding mode and is connected to one side of the inner cavity of the fixing seat in a sliding mode, the liquid drainage seat is communicated with the bottom of the top fixing seat, and a plurality of liquid leakage holes are formed in one side of the rotating seat and one.

As a further description of the above technical solution:

cultivation mechanism includes the fixing base, the fixing base bottom communicates with flowing back seat mutually, the fixing base bottom laminates with the rotation seat outer wall mutually, fixing base inner chamber fixedly connected with baffle, the baffle both sides correspond position fixedly connected with pad that absorbs water, the pad that absorbs water inlays and locates fixing base one side, fixing base inner chamber both sides all inlay and are equipped with first bearing, the pivot has cup jointed in the first bearing, pivot one end fixedly connected with cam, the cam is located the fixing base, pivot other end fixedly connected with changes the handle.

As a further description of the above technical solution:

the sealing mechanism comprises a cover plate, the bottom of the cover plate is attached to the top of the fixing seat, one side of the cover plate is hinged with a rotating rod through a first pin shaft, the other end of the rotating rod is hinged with a fixing block through a second pin shaft, one side of the fixing block is fixedly connected with a telescopic rod, the other end of the telescopic rod is fixedly connected with a fixing plate, the fixing plate is fixedly connected to one side of the fixing seat, the outer side wall of the telescopic rod is sleeved with a first spring, two ends of the first spring are respectively and fixedly connected with the fixing block and one side of the fixing plate in corresponding positions, one side of the cover plate is provided with a chute, a sliding plate is connected in the chute in a sliding manner, one side of the sliding plate is fixedly connected with a second spring, the other end, the other end of the sliding rod is fixedly connected with a clamping block, and the clamping block is positioned on one side of the inner cavity of the cover plate.

As a further description of the above technical solution:

stop gear includes the screw thread post, screw thread post bottom and closing mechanism top fixed connection, screw thread post lateral wall threaded connection has a screw thread section of thick bamboo, screw thread section of thick bamboo lateral wall cover is equipped with the second bearing, second bearing one side is inlayed and is equipped with spacing seat, a plurality of draw-in grooves have been seted up to spacing seat one side, the joint has the kelly in the draw-in groove, the seat is right to kelly other end fixedly connected with.

As a further description of the above technical solution:

the cross section shapes of the clamping rod and the clamping groove inner cavity are circular, and the clamping rod is a plastic rod.

As a further description of the above technical solution:

the baffle absorbs water the sponge backing plate, and baffle one side is seted up the opening.

As a further description of the above technical solution:

the cross section of the righting seat is arc-shaped.

As a further description of the above technical solution:

the outer side wall of the threaded cylinder is fixedly connected with a wheel disc, and the cross section of the wheel disc is annular.

A substrate of a turf cultivation device for cleaning domestic sludge compost is composed of the following components in parts by weight: 10-20 parts of mud ash, 5-10 parts of domestic sludge, 3-9 parts of expanded perlite and 10-15 parts of mellow soil.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. in the invention, after the seedlings are placed in the fixed seats of the cultivation mechanism, the substrate is placed at the bottom of the partition plate, and the fixed seats are inserted into the jacket, when the domestic garbage is generated, the compost can be produced by the mechanical energy placed at the top of the partition plate, the fertilizer can be absorbed by the bottom partition plate and discharged to two sides through the water absorption pads, the situation that the compost is rotten due to excessive water liquid and the seedling burning caused by the contact of the substrate at the bottom of the partition plate with flowers, grass and turf due to excessive water liquid is avoided, the substrate can enable the sediment to enable the water liquid to flow into the rotating seat and the liquid discharge seat, the water liquid can be discharged through the liquid leakage holes at the corresponding positions at the two sides, the water discharge and drainage quantity can be adjusted according to different requirements of flowers, grass and turf and water storage, the cultivation requirements under different conditions can be adapted, the clean domestic sludge, effectively meeting the overall use requirement.

2. According to the invention, after the seedlings of the flowers, the grass and the turf are grown in the matrix, the flowers, the grass and the turf can penetrate through the opening on one side of the cover plate and extend to the outside of the fixing seat, at the moment, the righting seat can be attached to and contacted with the two sides of the flowers, the grass and the turf, the flowers, the grass and the turf can be prevented from inclining and falling down, the limit seat moves to pull the righting seat on one side to be matched with the growth height of the flowers, the grass and the turf, the righting seat can adjust the relative distance through the clamping rod, the righting seat is matched with the growth radius of the flowers, the grass and the turf to be supported and limited, the matching capability.

3. According to the invention, when the domestic sludge composting is carried out, the rotating shaft and the cam on one side can be driven to rotate through the rotating handle, the composting substrate is stirred, the fluffiness and the fermentation uniformity are improved, the cover plate rotates around the first pin shaft to pull the rotating rod to separate and open the bottom fixing base, the composting substrate is effectively and conveniently added into the fixing base by workers, the second spring can drive the sliding rod clamping block to be attached and extruded with one side of flowers, grass and turf, the stability of limiting and fixing the cover plate on the flowers, grass and turf is further improved, the difficulty of maintaining the composting by the workers is reduced, and the use requirement is met.

Drawings

FIG. 1 is a schematic front sectional view of a turf growing apparatus for composting clean domestic sludge according to the present invention;

FIG. 2 is an enlarged schematic view of a portion A of FIG. 1 of a turf growing apparatus for composting clean domestic sludge according to the present invention;

FIG. 3 is an enlarged schematic view of a portion B of FIG. 1 of a turf growing apparatus for composting clean domestic sludge according to the present invention;

FIG. 4 is an enlarged schematic view of a portion C in FIG. 1 of a turf cultivating apparatus for composting clean domestic sludge according to the present invention;

FIG. 5 is a schematic perspective view of a base of a device for cultivating turf with clean sludge compost according to the present invention;

fig. 6 is a schematic perspective view of a limiting seat of the turf cultivation device for cleaning domestic sludge compost according to the present invention.

Illustration of the drawings:

1. a placement mechanism; 101. a base; 102. a drain hole; 103. a jacket; 104. a liquid discharge seat; 105. a rotating seat; 106. a weep hole; 2. a cultivation mechanism; 201. a fixed seat; 202. a partition plate; 203. a water absorbent pad; 204. a first bearing; 205. a rotating shaft; 206. turning a handle; 207. a cam; 3. a sealing mechanism; 301. a cover plate; 302. a first pin shaft; 303. a rotating rod; 304. a second pin shaft; 305. a fixed block; 306. a telescopic rod; 307. a first spring; 308. a fixing plate; 309. a chute; 310. a second spring; 311. a slide plate; 312. a slide bar; 313. a sliding sleeve; 314. a clamping block; 4. a limiting mechanism; 401. a threaded post; 402. a threaded barrel; 403. a second bearing; 404. a limiting seat; 405. a wheel disc; 406. a card slot; 407. a clamping rod; 408. a righting seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: the utility model provides a turf cultivation device with clean domestic sludge compost, includes

placement mechanism

1, 1 top swing joint of placement mechanism has

cultivation mechanism

2, 2 top both sides of cultivation mechanism all are equipped with

closing mechanism

3, 3 tops of closing mechanism are equipped with stop gear 4, be equipped with culture medium in the placement mechanism 1.

The placing mechanism 1 comprises a base 101, drain holes 102 are formed in two sides of an inner cavity of the base 101, a jacket 103 is fixedly connected to the top of the base 101, the inner cavity of the jacket 103 is attached to the outer wall of the cultivation mechanism 2, a liquid drainage seat 104 is attached to the bottom of the inner cavity of the base 101, a rotating seat 105 is connected to the liquid drainage seat 104 in a sliding mode, the rotating seat 105 is connected to one side of the inner cavity of a fixing seat 201 in a sliding mode, the liquid drainage seat 104 is communicated with the bottom of the top fixing seat 201, a plurality of liquid leakage holes 106 are formed in one sides of the rotating seat 105 and the liquid drainage seat 104, a sponge base plate 202 absorbs.

Cultivation mechanism 2 includes fixing base 201, fixing base 201 bottom is linked together with flowing back seat 104, fixing base 201 bottom laminates with rotating seat 105 outer wall mutually, fixing base 201 inner chamber fixedly connected with baffle 202, baffle 202 both sides correspond position fixedly connected with pad 203 that absorbs water, pad 203 that absorbs water inlays and locates fixing base 201 one side, fixing base 201 inner chamber both sides all inlay and are equipped with first bearing 204, pivot 205 has been cup jointed in first bearing 204, pivot 205 one end fixedly connected with cam 207, cam 207 is located fixing base 201, the handle 206 is changeed to the pivot 205 other end fixedly connected with.

The implementation mode is specifically as follows: after seeds are placed in the fixing seat 201 of the cultivation mechanism 2, the base 101 can limit the fixing seat 201 through the jacket 103 after the base 201 is placed at the bottom of the partition board 202 and the fixing seat 201 is inserted into the jacket 103, so that the fixing seat 201 is prevented from deviating and shaking, the cultivation stability is improved, when domestic garbage is generated, compost can be produced through mechanical energy arranged at the top of the partition board 202, the fertilizer can be discharged to two sides through the water absorption pad 203 after absorbing water through the bottom partition board 202, the situation that the compost is rotten due to excessive water and contacts with the base at the bottom of the partition board 202 with flowers, grasses and turf seeds to cause burning is avoided, meanwhile, the partition board 202 has certain water permeability to ensure the water absorption requirement of the base, when the water content is continuously increased, the base can enable the sediment to flow water into the rotating seat 105 and the liquid discharge seat 104, the water can be discharged through the liquid discharge holes 106 at the corresponding positions at two sides, and the rotating seat 105 can adjust the included, can adjust drainage displacement according to flowers and plants and the retaining needs of turf of difference, and then the cultivation needs that can the different situation of adaptation to can be directly with clean domestic sludge compost at baffle 202 top, and seal through top apron 301, water liquid guides when simultaneously to the compost, avoids the condition of burning seedlings to produce, effectively satisfies whole use needs.

Stop gear 4 includes threaded column 401, threaded column 401 bottom and 3 top fixed connection of closing mechanism, threaded column 401 lateral wall threaded connection has a threaded cylinder 402, threaded cylinder 402 lateral wall cover is equipped with second bearing 403, second bearing 403 one side is inlayed and is equipped with spacing seat 404, a plurality of draw-in grooves 406 have been seted up to spacing seat 404 one side, the joint has a kelly 407 in the draw-in groove 406, seat 408 is right to kelly 407 other end fixedly connected with, the shape of cross section of kelly 407 and draw-in groove 406 inner chamber is circular, and kelly 407 is the plastic pole, the shape of cross section of righting seat 408 is the arc, threaded cylinder 402 lateral wall fixedly connected with rim plate 405, and the shape of cross section of rim plate 405 is the annular.

The implementation mode is specifically as follows: after the flowers, the grass and the turf are grown in the matrix, the flowers, the grass and the turf can penetrate through the opening on one side of the cover plate 301 and extend to the outside of the fixing seat 201, at the moment, the righting seat 408 can be attached to and contacted with the two sides of the flowers, the grass and the turf can be prevented from inclining and falling down, the threaded cylinder 402 can be driven to rotate outside the threaded column 401 by screwing the wheel disc 405, the threaded cylinder 402 rotates in the second bearing 403 when rotating, at the moment, the threaded cylinder 402 can move upwards through threaded connection and matching, then the second bearing 403 and the limiting seat 404 can be pulled to move upwards, the limiting seat 404 can move to pull the righting seat 408 on one side to be matched with the heights of the flowers, the grass and the turf for growth, the righting seat 408 can be clamped into the clamping grooves 406 in different positions through the clamping rod 407, then the relative distance between the righting seats 408 on the two sides can, effectively improve the adaptability, improve the safety of growing and cultivating flowers, grass and turf, and improve the supporting and stabilizing capability.

The sealing mechanism 3 comprises a cover plate 301, the bottom of the cover plate 301 is attached to the top of a fixed seat 201, one side of the cover plate 301 is hinged with a rotating rod 303 through a first pin shaft 302, the other end of the rotating rod 303 is hinged with a fixed block 305 through a second pin shaft 304, one side of the fixed block 305 is fixedly connected with a telescopic rod 306, the other end of the telescopic rod 306 is fixedly connected with a fixed plate 308, the fixed plate 308 is fixedly connected to one side of the fixed seat 201, the outer side wall of the telescopic rod 306 is sleeved with a first spring 307, two ends of the first spring 307 are respectively and fixedly connected with the fixed block 305 and one side of the fixed plate 308 at corresponding positions, one side of the cover plate 301 is provided with a sliding groove 309, a sliding plate 311 is connected in the sliding groove 309 in a sliding manner, one side of the sliding plate 311, the outer side wall of the sliding rod 312 is sleeved with a sliding sleeve 313, the sliding sleeve 313 is embedded in the other side of the inner cavity of the sliding groove 309, the other end of the sliding rod 312 is fixedly connected with a clamping block 314, and the clamping block 314 is located on one side of the inner cavity of the cover plate 301.

The implementation mode is specifically as follows: when the domestic sludge composting is carried out, the rotating shaft 205 and the cam 207 on one side can be driven to rotate by rotating the rotating handle 206, the cam 207 can rotate to stir the composting area on the top of the partition plate 202, so that the composting substrate can be stirred during composting, the filling power and the fermentation uniformity are improved, when the composting substrate needs to be added, the cover plate 301 can be pulled to rotate around the first pin shaft 302, the cover plate 301 can rotate around the first pin shaft 302, the rotating rod 303 can be pulled to rotate around the second pin shaft 304 and pull the telescopic rod 306, the telescopic rod 306 extends to drive the first spring 307, the first spring 307 can improve the moving stability of the telescopic rod 306 and the fixed block 305 by utilizing the self-pulling force, the bottom fixed seat 201 can be separated and opened by the cover plate 301, the composting substrate can be effectively and conveniently added into the fixed seat 201 by a worker, and after the cover plate 301 is reset, the second spring 310 on one side of, slide 311 slides and can drive slide bar 312 and remove in sliding sleeve 313, and slide bar 312 removes and can drive one side clamp splice 314 and the laminating extrusion of flowers and plants and turf one side, further improves apron 301 to the spacing fixed stability of flowers and plants and turf, reduces the staff to the degree of difficulty that the compost was maintained, satisfies the user demand.

The working principle is as follows: during the use, put the seedling kind and put into cultivation mechanism 2 in the fixing base 201, put into baffle 202 bottom with the matrix, and after fixing base 201 inserted the cover 103, base 101 pressed from both sides cover 103 and carried on spacingly fixing base 201, put into baffle 202 top mechanical energy compost when domestic waste produces, fertilizer bottom baffle 202 absorbed water back and absorbed water pad 203 and discharged to both sides, baffle 202 guarantees the bottom matrix needs that absorbs water simultaneously, when moisture content lasts the increase, the matrix will deposit with water liquid flow in rotating seat 105 and flowing back seat 104, the water liquid both sides correspond position weeping hole 106 and discharge, it adjusts the contained angle of inside weeping hole 106 and outside weeping hole 106 to rotate seat 105 in flowing back seat 104, it needs the adjustment drainage volume to hold water according to different flowers and grasses.

After the flowers, the grass and the turf are grown in the substrate, the flowers, the grass and the turf extend to the outside of the fixed seat 201 through the opening at one side of the cover plate 301, at the moment, the righting seat 408 is in contact with the two sides of the flowers, the grass and the turf in a fitting manner, further avoiding the flowers and the grass from inclining and falling down, simultaneously screwing the wheel disc 405 to drive the thread cylinder 402 to rotate outside the thread column 401, the thread cylinder 402 rotates in the second bearing 403 when rotating, at the moment, the thread cylinder 402 moves upwards in a threaded connection and matching way, the second bearing 403 and the limiting seat 404 are pulled to move upwards, the limiting seat 404 moves to pull the one side righting seat 408 to be matched with the growth height of the flowers and the grass, and the clamping rods 407 of the righting seats 408 are clamped into the clamping grooves 406 at different positions, the relative distance between the righting seats 408 at two sides is adjusted, the righting seats are matched with the growth radius of the flowers and the grass and the turf for supporting and limiting, the matching capability is effectively improved, the growth and cultivation safety of the flowers and the grass and the turf is improved, and the supporting and stabilizing capability is improved.

When the domestic sludge composting is carried out, the rotating handle 206 is rotated to drive the rotating shaft 205 and the cam 207 on one side to rotate, the cam 207 rotates the composting area on the top of the stirring partition plate 202, compost matrixes are stirred during composting, when the compost matrixes need to be added, the cover plate 301 is pulled to rotate around the first pin shaft 302, the rotating rod 303 is pulled to rotate around the second pin shaft 304 and pull the telescopic rod 306 by rotating around the first pin shaft 302, the telescopic rod 306 is stretched to drive the first spring 307 to be pulled, the cover plate 301 can separate and open the bottom fixing seat 201 to add the compost matrixes, and after the cover plate 301 is reset, the second spring 310 on one side of the cover plate 301 drives the sliding plate 311 to slide in the sliding groove 309 by utilizing the self elasticity, the sliding plate 311 drives the sliding rod 312 to move in the sliding sleeve 313, and the sliding rod 312 moves to drive.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a turf cultivation device with clean domestic sludge compost, includes placement mechanism (1), its characterized in that, placement mechanism (1) top swing joint has cultivation mechanism (2), cultivation mechanism (2) top both sides all are equipped with closing mechanism (3), closing mechanism (3) top is equipped with stop gear (4), be equipped with culture medium in placement mechanism (1).

2. A turf cultivation device as claimed in claim 1, wherein the placement mechanism (1) comprises a base (101), drainage holes (102) are formed in both sides of an inner cavity of the base (101), a jacket (103) is fixedly connected to the top of the base (101), the inner cavity of the jacket (103) is attached to the outer wall of the cultivation mechanism (2), a drainage seat (104) is attached to the bottom of the inner cavity of the base (101), a rotating seat (105) is slidably connected to the drainage seat (104), the rotating seat (105) is slidably connected to one side of the inner cavity of the fixed seat (201), the drainage seat (104) is communicated with the bottom of the fixed seat (201), and a plurality of drainage holes (106) are formed in each of the rotating seat (105) and one side of the drainage seat (104).

3. The device for cultivating turf for cleaning and composting domestic sludge according to claim 1, it is characterized in that the cultivation mechanism (2) comprises a fixed seat (201), the bottom of the fixed seat (201) is communicated with a liquid discharge seat (104), the bottom of the fixed seat (201) is attached to the outer wall of the rotating seat (105), the inner cavity of the fixed seat (201) is fixedly connected with a clapboard (202), the corresponding positions of the two sides of the clapboard (202) are fixedly connected with water absorption pads (203), the water absorption pads (203) are embedded at one side of the fixed seat (201), two sides of the inner cavity of the fixed seat (201) are embedded with first bearings (204), a rotating shaft (205) is sleeved in the first bearings (204), one end of the rotating shaft (205) is fixedly connected with a cam (207), the cam (207) is positioned in the fixed seat (201), and the other end of the rotating shaft (205) is fixedly connected with a rotating handle (206).

4. A turf cultivation device for cleaning domestic sludge compost as claimed in claim 1, wherein said closing mechanism (3) comprises a cover plate (301), the bottom of said cover plate (301) is attached to the top of said fixing base (201), one side of said cover plate (301) is hinged to a rotating rod (303) through a first pin (302), the other end of said rotating rod (303) is hinged to a fixing block (305) through a second pin (304), a telescopic rod (306) is fixedly connected to one side of said fixing block (305), the other end of said telescopic rod (306) is fixedly connected to a fixing plate (308), said fixing plate (308) is fixedly connected to one side of said fixing base (201), a first spring (307) is sleeved on the outer side wall of said telescopic rod (306), two ends of said first spring (307) are respectively fixedly connected to one side of said fixing block (305) and said fixing plate (308), spout (309) has been seted up to apron (301) one side, sliding connection has slide (311) in spout (309), slide (311) one side fixedly connected with second spring (310), the second spring (310) other end and spout (309) inner chamber one side fixed connection, slide (311) opposite side fixedly connected with slide bar (312), slide bar (312) lateral wall cover is equipped with sliding sleeve (313), sliding sleeve (313) are inlayed and are located spout (309) inner chamber opposite side, slide bar (312) other end fixedly connected with clamp splice (314), clamp splice (314) are located apron (301) inner chamber one side.

5. The device for cultivating the turf for cleaning the domestic sludge compost as claimed in claim 1, wherein the limiting mechanism (4) comprises a threaded column (401), the bottom end of the threaded column (401) is fixedly connected with the top of the closing mechanism (3), a threaded cylinder (402) is in threaded connection with the outer side wall of the threaded column (401), a second bearing (403) is sleeved on the outer side wall of the threaded cylinder (402), a limiting seat (404) is embedded on one side of the second bearing (403), a plurality of clamping grooves (406) are formed in one side of the limiting seat (404), a clamping rod (407) is clamped in the clamping groove (406), and a righting seat (408) is fixedly connected to the other end of the clamping rod (407).

6. A device for cultivating turf for cleaning compost of claim 5, wherein the cross-sectional shapes of the inner cavities of said catching rod (407) and said catching groove (406) are both circular, and the catching rod (407) is a plastic rod.

7. A device for growing turf for cleaning compost from domestic sludge as claimed in claim 3, wherein said partition (202) is a sponge mat absorbing water, and one side of said partition (202) is opened.

8. A device for cultivating turf for cleaning compost of claim 5, wherein said centering seats (408) have an arc-shaped cross-section.

9. A device for cultivating turf with compost of clean domestic sludge as claimed in claim 5, wherein a wheel disc (405) is fixedly connected to the outer side wall of said threaded cylinder (402), and the cross-sectional shape of said wheel disc (405) is annular.

10. A substrate for a device for growing turf for cleaning compost from domestic sludge as claimed in any one of claims 1 to 9, consisting of, by weight: 10-20 parts of mud ash, 5-10 parts of domestic sludge, 3-9 parts of expanded perlite and 10-15 parts of mellow soil.