阅读说明：本技术 一种农业有机肥料制备用发酵装置 (Fermenting installation is used in agricultural organic fertilizer preparation ) 是由 邓育玲 于 2021-07-19 设计创作，主要内容包括：本发明公开一种农业有机肥料制备用发酵装置,涉及农业发酵装置领域。该农业有机肥料制备用发酵装置包括发酵罐主体,所述发酵罐主体的侧壁固定连接有沼气排出管,所述沼气排出管的侧壁通过螺栓固定连接有连通管,所述连通管的形状为直角状,所述连通管的另一端固定连接有下过滤筒,所述下过滤筒的顶部固定安装有上过滤筒,所述下过滤筒和上过滤筒的内腔相连通,所述上过滤筒的顶部固定连接有沼气收集管。该农业有机肥料制备用发酵装置可减缓沼渣对滤网主体的堵塞影响,保证滤网主体的正常使用,当下一次堵塞后,又会通过上述过程实现再次疏通,因此使用者无需反复将滤网主体进行拆下更换和清理,减少了沼渣对滤网主体的影响。(The invention discloses a fermentation device for preparing an agricultural organic fertilizer, and relates to the field of agricultural fermentation devices. This fermenting installation is used in agricultural organic fertilizer preparation includes the fermentation cylinder main part, the lateral wall fixedly connected with marsh gas discharge pipe of fermentation cylinder main part, the lateral wall of marsh gas discharge pipe passes through bolt fixedly connected with communicating pipe, the shape of communicating pipe is the right angle form, the cartridge filter under the other end fixedly connected with of communicating pipe, the top fixed mounting of cartridge filter has last cartridge filter down, the inner chamber of cartridge filter and last cartridge filter is linked together down, the top fixedly connected with marsh gas collecting pipe of last cartridge filter. This fermenting installation is used in agricultural organic fertilizer preparation can slow down the jam influence of natural pond sediment to the filter screen main part, guarantees the normal use of filter screen main part, after blockking up next time, will realize dredging once more through above-mentioned process, consequently the user need not to pull down the filter screen main part repeatedly and changes and clear up, has reduced the influence of natural pond sediment to the filter screen main part.)

1. The utility model provides a fermenting installation is used in agricultural organic fertilizer preparation, includes fermentation cylinder main part (1), its characterized in that: the fermentation tank is characterized in that a biogas discharge pipe (2) is fixedly connected to the side wall of the fermentation tank main body (1), a communicating pipe (3) is fixedly connected to the side wall of the biogas discharge pipe (2) through a bolt, the communicating pipe (3) is in a right-angle shape, a lower filter cartridge (4) is fixedly connected to the other end of the communicating pipe (3), an upper filter cartridge (5) is fixedly installed at the top of the lower filter cartridge (4), the lower filter cartridge (4) is communicated with the inner cavity of the upper filter cartridge (5), a biogas collection pipe (6) is fixedly connected to the top of the upper filter cartridge (5), a fixed support (7) is fixedly connected to the side wall of the inner cavity of the upper filter cartridge (5), a hollow cylinder (8) is fixedly connected to the bottom of the fixed support (7), a spring (9) is fixedly connected to the top wall of the inner cavity of the hollow cylinder (8), and a slide block (10) is fixedly connected to the bottom of the spring (9), slider (10) sliding connection is in the inner chamber of cavity section of thick bamboo (8), bottom fixedly connected with lifter (11) of slider (10), cavity section of thick bamboo (8) downwardly extending and fixedly connected with mounting bracket (12) are passed to the bottom of lifter (11), bolt fixedly connected with filter screen main part (13) is passed through to the bottom of mounting bracket (12), bottom fixedly connected with built on stilts pole (1301) of filter screen main part (13), the bottom of built on stilts pole (1301) offsets with the inner chamber diapire of lower cartridge filter (4), spring (9) are in compression state.

2. The fermentation device for agricultural organic fertilizer preparation according to claim 1, characterized in that: the fixed support (7) is composed of a plurality of groups of cross rods, gaps are arranged among the groups of cross rods of the fixed support (7), and the groups of cross rods are fixed on the inner wall of the upper filter cartridge (5).

3. The fermentation device for agricultural organic fertilizer preparation according to claim 1, characterized in that: the filter screen is characterized in that a plurality of groups of filter screen holes are formed in the filter screen main body (13), and round holes corresponding to the mounting rack (12) are formed in the filter screen main body (13).

4. The fermentation device for agricultural organic fertilizer preparation according to claim 1, characterized in that: the fermentation tank main body (1), the biogas discharge pipe (2), the communicating pipe (3), the lower filter cartridge (4), the upper filter cartridge (5) and the inner cavity of the biogas collecting pipe (6) are communicated.

5. The fermentation device for agricultural organic fertilizer preparation according to claim 1, characterized in that: joint crown plate (401) under the top fixedly connected with of cartridge filter (4) down, joint crown plate (501) on the bottom fixedly connected with of going up cartridge filter (5), go up joint crown plate (501) and joint crown plate (401) laminating mutually down.

6. The fermentation device for agricultural organic fertilizer preparation according to claim 5, wherein: go up two sets of inserted blocks (14) of bottom fixedly connected with of joint ring plate (501), locking groove (1401) have been seted up to the lateral wall of inserted block (14), two sets of square tube socket (15) of bottom fixedly connected with of lower joint ring plate (401), square groove (1501) have been seted up to the lateral wall of square tube socket (15), inserted block (14) pass joint ring plate (401) down and the activity is pegged graft in the lumen of square tube socket (15).

7. The fermentation device for agricultural organic fertilizer preparation according to claim 6, wherein: a positioning and supporting round rod (16) is fixedly connected on the side wall of the square tube seat (15), one end of the positioning support round rod (16) far away from the square tube seat (15) is fixedly connected with a fixing plate (17), a nut seat (18) is fixedly connected at the center of the side wall of the fixed plate (17), a screw rod (19) is connected at the axis of the nut seat (18) in a threaded manner, one end of the screw rod (19) passes through the nut seat (18) and the fixed plate (17) and is rotatably connected with a sliding plate (20), the two sides of the sliding plate (20) are fixedly connected with waist round blocks (21), one side of each waist round block (21) close to the square tube seat (15) is fixedly connected with a connecting column (22), one end of the connecting column (22) far away from the waist round block (21) is fixedly connected with a wedge-shaped block (23), the wedge-shaped block (23) penetrates through the square groove (1501) and is movably inserted into the locking groove (1401).

8. The fermentation device for agricultural organic fertilizer preparation according to claim 7, characterized in that: the waist round block (21) is provided with a round hole corresponding to the positioning support round rod (16), and the positioning support round rod (16) is movably inserted into the round hole of the waist round block (21).

9. The fermentation device for agricultural organic fertilizer preparation according to claim 7, characterized in that: the top fixedly connected with stopper (24) of wedge (23), the corresponding round hole of location support round bar (16) is seted up to the lateral wall of stopper (24).

Technical Field

The invention relates to the technical field of agricultural fermentation devices, in particular to a fermentation device for preparing an agricultural organic fertilizer.

Background

During the preparation of agricultural organic fertilizer, the agricultural wastes are required to be comprehensively utilized and fermented, so that the waste of materials can be reduced, the environment can be protected, the wastes such as straws and the like can be fermented by a fermentation device in the comprehensive utilization process of the agricultural wastes so as to obtain the organic fertilizer, and although the types of the fermentation devices on the market are many, certain defects still exist.

The invention discloses a fermentation device for preparing agricultural organic fertilizer, which is characterized in that a filter screen is usually arranged in a channel of a biogas collecting and discharging mechanism in a traditional fermentation device, biogas and biogas residues can be separated and discharged, after the fermentation device is used for a long time, the biogas residues easily block meshes of the filter screen, so that the internal pressure of the whole fermentation device is increased, and the meshes of the filter screen can be dredged only by manual cleaning, so that the later biogas discharging work is greatly influenced, after the filter screen is blocked, the filter screen is often cleaned or replaced, in the prior art, the filter screen is seriously blocked, the blocking time is short, the filter screen is inconvenient to clean and replace, and the fermentation device for preparing agricultural organic fertilizer is insufficient in the prior art.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention discloses a fermentation device for preparing an agricultural organic fertilizer, which aims to solve the problems in the background technology.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: a fermentation device for preparing agricultural organic fertilizer comprises a fermentation tank main body, wherein a biogas discharge pipe is fixedly connected to the side wall of the fermentation tank main body, a communicating pipe is fixedly connected to the side wall of the biogas discharge pipe through a bolt, the communicating pipe is in a right-angle shape, a lower filter cartridge is fixedly connected to the other end of the communicating pipe, an upper filter cartridge is fixedly installed at the top of the lower filter cartridge, the lower filter cartridge is communicated with the inner cavity of the upper filter cartridge, a biogas collection pipe is fixedly connected to the top of the upper filter cartridge, a fixing support is fixedly connected to the side wall of the inner cavity of the upper filter cartridge, a hollow cylinder is fixedly connected to the bottom of the fixing support, a spring is fixedly connected to the top wall of the inner cavity of the hollow cylinder, a sliding block is fixedly connected to the bottom of the spring, the sliding block is slidably connected to the inner cavity of the hollow cylinder, and a lifting rod is fixedly connected to the bottom of the sliding block, the bottom of lifter passes cavity section of thick bamboo downwardly extending and fixedly connected with mounting bracket, bolt fixedly connected with filter screen main part is passed through to the bottom of mounting bracket, the bottom fixedly connected with overhead pole of filter screen main part, the bottom of overhead pole offsets with the inner chamber diapire of lower cartridge filter, the spring is in compression state.

Preferably, the fixed bolster has multiunit horizontal pole to constitute, have the gap between the multiunit horizontal pole of fixed bolster, and multiunit horizontal pole is fixed on the inner wall of last cartridge filter.

Preferably, the filter screen main body is provided with a plurality of groups of filter meshes, and the filter screen main body is provided with round holes corresponding to the mounting rack.

Preferably, the fermentation tank main body, the biogas discharge pipe, the communicating pipe, the lower filter cartridge, the upper filter cartridge and the inner cavity of the biogas collecting pipe are communicated.

Preferably, joint ring plate under the top fixedly connected with of cartridge filter down, joint ring plate on the bottom fixedly connected with of going up the cartridge filter, go up joint ring plate and laminate mutually with joint ring plate down.

Preferably, the bottom of going up joint ring plate fixedly connected with two sets of inserted blocks, the locking groove has been seted up to the lateral wall of inserted block, the bottom fixedly connected with two sets of square tube seats of joint ring plate down, square groove has been seted up to the lateral wall of square tube seat, the inserted block passes joint ring plate down and the activity is pegged graft in the lumen of square tube seat.

Preferably, fixedly connected with location support round bar on the lateral wall of square tube seat, the one end fixedly connected with fixed plate that the square tube seat was kept away from to the location support round bar, the fixedly connected with nut seat is located at the lateral wall center of fixed plate, the axle center threaded connection of nut seat has the lead screw, the one end of lead screw is passed nut seat and fixed plate and is had the sliding plate with the rotation, the both sides fixedly connected with waist circle piece of sliding plate, one side fixedly connected with spliced pole that the waist circle piece is close to the square tube seat, the one end fixedly connected with wedge of waist circle piece is kept away from to the spliced pole, the wedge passes square groove and the activity is pegged graft at the locking inslot.

Preferably, the waist round block is provided with a round hole corresponding to the positioning support round rod, and the positioning support round rod is movably inserted into the round hole of the waist round block.

Preferably, the top of the wedge-shaped block is fixedly connected with a limiting block, and a round hole corresponding to the positioning support round rod is formed in the side wall of the limiting block.

The invention discloses a fermentation device for preparing agricultural organic fertilizer, which has the following beneficial effects:

1. this fermenting installation is used in agricultural organic fertilizer preparation, when using, can be convenient for filter the marsh gas that gets into in the fermentation cylinder main part marsh gas collecting tube through the filter screen main part that sets up, after marsh gas gets into the marsh gas discharge pipe, and then in getting into communicating pipe, then when getting into the inside of lower cartridge filter, can filter through the filter screen main part of installation, make marsh gas and natural pond sediment separate, after long-term the use, the filter screen main part probably receives the jam of natural pond sediment, when the mesh that the filter screen main part was blockked up to natural pond sediment is comparatively serious, the pressure of lower cartridge filter inside can increase this moment, when pressure is great, can promote filter screen main part upward movement, can push away natural pond sediment after the motion, and take place relative displacement between the mesh that blocks up, and then make the filter screen main part dredged, reduce the jam condition of filter screen, behind the filter screen main part, atmospheric pressure drops, this moment the spring can reset and push away and promote the filter screen main part to continue downstream and make the inner chamber of built on stilt pole and lower cartridge filter to push away The diapire offsets, and whole process is automatic goes on, can slow down the jam influence of natural pond sediment to the filter screen main part, guarantees the normal use of filter screen main part, after blockking up next time, will realize dredging once more through above-mentioned process, and consequently the user need not to pull down the filter screen main part repeatedly and changes and clear up, has reduced the influence of natural pond sediment to the filter screen main part.

2. The fermentation device for preparing the agricultural organic fertilizer can facilitate installation and later-stage replacement of the filter screen main body when in use, when the filter screen main body is fixedly installed, firstly, the filter screen main body can be fixed on the installation frame by using bolts, then, the upper filter cartridge is arranged above the lower filter cartridge, the insert block is aligned to the square tube seat and is downwards inserted, the lower clamping ring plate is attached to the upper clamping ring plate, at the moment, the installation and fixation of the filter screen main body and the clamping of the lower filter cartridge and the upper filter cartridge can be realized by rotating the screw rod, after the lower filter cartridge is clamped with the upper filter cartridge, the sealing effect of the interface is good, after the screw rod rotates, the screw rod spirally moves along the nut seat, the screw rod pushes the sliding plate to move, the sliding plate drives the oval block to slide along the positioning support round rod, the oval block drives the connecting column to move, the connecting column drives the wedge block to be inserted into the square groove and the locking groove, the inclined plane of wedge can extrude the inner wall in locking groove, and then guarantees that the inserted block drives the inseparable block of joint crown plate and lower joint crown plate, consequently makes sealed effectual, and the later stage need pull down the filter screen main part and clear up or when changing, with above-mentioned installation otherwise can, easy operation is convenient, labour saving and time saving.

3. This fermenting installation is used in agricultural organic fertilizer preparation, the filter screen main part that sets up can be convenient for use the bolt pass the round hole of seting up on it, screw up and fix on the mounting bracket, at the overhead pole that filter screen main part bottom set up, can realize propping up the certain height with the filter screen main part, guarantee that the filter area of filter screen main part is big, avoid the bottom of filter screen main part and lower cartridge filter to offset with the opening of communicating pipe, consequently increase filter area and reinforcing filter effect.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an overall block diagram of the lower and upper filter cartridges of the present invention;

FIG. 3 is an exploded view of the lower and upper filter cartridges of the present invention;

FIG. 4 is an exploded view of the lead screw of the present invention;

FIG. 5 is a block diagram of the square tube base of the present invention;

FIG. 6 is a block diagram of the screen body of the present invention;

FIG. 7 is a half sectional view of the upper filter cartridge of the present invention;

fig. 8 is a partial cross-sectional view of the upper filter cartridge of the present invention.

In the figure: 1. a fermenter main body; 2. a biogas discharge pipe; 3. a communicating pipe; 4. a lower filter cartridge; 401. a lower clamping ring plate; 5. an upper filter cartridge; 501. an upper clamping ring plate; 6. a biogas collecting pipe; 7. fixing a bracket; 8. a hollow cylinder; 9. a spring; 10. a slider; 11. a lifting rod; 12. a mounting frame; 13. a filter screen main body; 1301. an overhead pole; 14. inserting a block; 1401. a locking groove; 15. a square tube seat; 1501. a square groove; 16. positioning the supporting round rod; 17. a fixing plate; 18. a nut seat; 19. a screw rod; 20. a sliding plate; 21. a lumbar disc; 22. connecting columns; 23. a wedge block; 24. and a limiting block.

Detailed Description

Example 1:

the embodiment of the invention discloses a fermentation device for preparing agricultural organic fertilizer, which comprises a fermentation tank main body 1, wherein a biogas discharge pipe 2 is fixedly connected to the side wall of the fermentation tank main body 1, a communicating pipe 3 is fixedly connected to the side wall of the biogas discharge pipe 2 through a bolt, the communicating pipe 3 is in a right-angle shape, the other end of the communicating pipe 3 is fixedly connected with a lower filter cylinder 4, the top of the lower filter cylinder 4 is fixedly provided with an upper filter cylinder 5, the lower filter cylinder 4 is communicated with the inner cavity of the upper filter cylinder 5, the top of the upper filter cylinder 5 is fixedly connected with a biogas collecting pipe 6, the side wall of the inner cavity of the upper filter cylinder 5 is fixedly connected with a fixed support 7, the bottom of the fixed support 7 is fixedly connected with a hollow cylinder 8, the top wall of the inner cavity of the hollow cylinder 8 is fixedly connected with a spring 9, the bottom of the spring 9 is fixedly connected with a slide block 10, the slide block 10 is slidably connected in the inner cavity of the hollow cylinder 8, the bottom fixedly connected with lifter 11 of slider 10, hollow section of thick bamboo 8 downwardly extending and fixedly connected with mounting bracket 12 are passed to the bottom of lifter 11, and bolt fixedly connected with filter screen main part 13 is passed through to the bottom of mounting bracket 12, and the bottom fixedly connected with overhead mast 1301 of filter screen main part 13, the bottom of overhead mast 1301 offsets with the inner chamber diapire of lower cartridge filter 4, and spring 9 is in compression state.

As a technical optimization scheme of the invention, the fixed support 7 consists of a plurality of groups of cross rods, gaps are formed among the groups of cross rods of the fixed support 7, the groups of cross rods are fixed on the inner wall of the upper filter cylinder 5, and the arranged fixed support 7 can facilitate the fixation and installation of the hollow cylinder 8 and the passing of methane.

As a technical optimization scheme of the invention, a plurality of groups of filter mesh holes are formed in the filter screen main body 13, round holes corresponding to the mounting frame 12 are formed in the filter screen main body 13, the filter screen main body 13 can be conveniently threaded through the round holes formed in the filter screen main body 13 and is screwed and fixed on the mounting frame 12, and the overhead rod 1301 arranged at the bottom of the filter screen main body 13 can support the filter screen main body 13 to a certain height, so that the large filtering area of the filter screen main body 13 is ensured, and the bottom of the filter screen main body 13 and the lower filter cylinder 4 is prevented from being abutted against the opening of the communicating pipe 3, thereby increasing the filtering area and enhancing the filtering effect.

As a technical optimization scheme of the invention, the fermentation tank main body 1, the biogas discharge pipe 2, the communicating pipe 3, the lower filter cartridge 4, the upper filter cartridge 5 and the inner cavity of the biogas collecting pipe 6 are communicated.

When the biogas filter is used, biogas entering the biogas collecting pipe 6 from the fermentation tank main body 1 can be conveniently filtered, the biogas collecting pipe 6 is finally connected with a biogas collecting device, the biogas enters the biogas discharging pipe 2 and then enters the communicating pipe 3, and then enters the lower filter cylinder 4, the biogas and the biogas residues are separated through the filter screen main body 13, after long-term use, the filter screen main body 13 can be blocked by the biogas residues, when the mesh of the filter screen main body 13 is seriously blocked by the biogas residues, the pressure in the lower filter cylinder 4 is increased, when the pressure is higher, the filter screen main body 13 is pushed to move upwards, the biogas residues are pushed to be pushed away by the movement of the filter screen main body 13, so that the filter screen main body 13 is dredged, the blocking condition of the filter screen is reduced, after the filter screen main body 13 is pushed to be pushed away, the spring 9 is reset and pushes the filter screen main body 13 to continuously move downwards, and the hollow rod 1301 and the lower filter cylinder 4 are connected with the hollow rod 1301 and the lower filter cylinder 4 The bottom wall of the inner cavity is propped against the bottom wall of the inner cavity.

When the filter screen main body 13 moves upwards, the filter screen main body 13 pushes the mounting frame 12 to move, the mounting frame 12 drives the lifting rod 11 to move, and the lifting rod 11 drives the sliding block 10 to move and compress the spring 9.

For those skilled in the art, when the device is used, the filter screen main body 13 is arranged to facilitate the filtration of biogas entering the biogas collecting pipe 6 from the fermentation tank main body 1, the biogas enters the biogas discharging pipe 2 and then enters the communicating pipe 3, and then enters the lower filter cartridge 4, the biogas and the biogas residues are separated by the filter screen main body 13, after long-term use, the filter screen main body 13 may be blocked by the biogas residues, when the mesh of the filter screen main body 13 is blocked by the biogas residues seriously, the pressure inside the lower filter cartridge 4 is increased, when the pressure is large, the filter screen main body 13 is pushed to move upwards, the biogas residues can be pushed to be pushed away after the movement, relative displacement is generated between the filter screen main body 13 and the blocked mesh, the filter screen main body 13 is dredged, the blocking condition of the filter screen is reduced, and after the filter screen main body 13 is pushed to be pushed away, atmospheric pressure reduces, spring 9 will reset and promote filter screen main part 13 and continue downstream and make the inner chamber diapire of overhead pole 1301 and lower cartridge filter 4 offset this moment, whole process is automatic to be gone on, can slow down the jam influence of natural pond sediment to filter screen main part 13, guarantee the normal use of filter screen main part 13, after blockking up next time, will realize dredging once more through above-mentioned process, consequently the user need not to pull down filter screen main part 13 repeatedly and changes and clear up, the influence of natural pond sediment to filter screen main part 13 has been reduced.

Example 2:

the embodiment of the invention discloses a fermentation device for preparing agricultural organic fertilizer, which comprises a fermentation tank main body 1, wherein a biogas discharge pipe 2 is fixedly connected to the side wall of the fermentation tank main body 1, a communicating pipe 3 is fixedly connected to the side wall of the biogas discharge pipe 2 through a bolt, the communicating pipe 3 is in a right-angle shape, the other end of the communicating pipe 3 is fixedly connected with a lower filter cylinder 4, the top of the lower filter cylinder 4 is fixedly provided with an upper filter cylinder 5, the lower filter cylinder 4 is communicated with the inner cavity of the upper filter cylinder 5, the top of the upper filter cylinder 5 is fixedly connected with a biogas collecting pipe 6, the side wall of the inner cavity of the upper filter cylinder 5 is fixedly connected with a fixed support 7, the bottom of the fixed support 7 is fixedly connected with a hollow cylinder 8, the top wall of the inner cavity of the hollow cylinder 8 is fixedly connected with a spring 9, the bottom of the spring 9 is fixedly connected with a slide block 10, the slide block 10 is slidably connected in the inner cavity of the hollow cylinder 8, the bottom fixedly connected with lifter 11 of slider 10, hollow section of thick bamboo 8 downwardly extending and fixedly connected with mounting bracket 12 are passed to the bottom of lifter 11, and bolt fixedly connected with filter screen main part 13 is passed through to the bottom of mounting bracket 12, and the bottom fixedly connected with overhead mast 1301 of filter screen main part 13, the bottom of overhead mast 1301 offsets with the inner chamber diapire of lower cartridge filter 4, and spring 9 is in compression state.

As a technical optimization scheme of the invention, the top of the lower filter cartridge 4 is fixedly connected with a lower clamping ring plate 401, the bottom of the upper filter cartridge 5 is fixedly connected with an upper clamping ring plate 501, the upper clamping ring plate 501 is attached to the lower clamping ring plate 401, and a rubber pad can be used between the upper clamping ring plate 501 and the lower clamping ring plate 401 to increase the sealing effect.

As a technical optimization scheme of the invention, the bottom of the upper clamping ring plate 501 is fixedly connected with two groups of insertion blocks 14, the side wall of each insertion block 14 is provided with a locking groove 1401, the bottom of the lower clamping ring plate 401 is fixedly connected with two groups of square tube seats 15, the side wall of each square tube seat 15 is provided with a square groove 1501, the insertion blocks 14 penetrate through the lower clamping ring plate 401 and are movably inserted into the tube cavity of the square tube seats 15, and the arranged locking grooves 1401 correspond to the square grooves 1501.

As a technical optimization scheme of the invention, a positioning and supporting round rod 16 is fixedly connected to the side wall of a square tube seat 15, one end of the positioning and supporting round rod 16, which is far away from the square tube seat 15, is fixedly connected with a fixed plate 17, a nut seat 18 is fixedly connected to the center of the side wall of the fixed plate 17, a lead screw 19 is in threaded connection with the axis of the nut seat 18, one end of the lead screw 19 penetrates through the nut seat 18 and the fixed plate 17 and is rotatably connected with a sliding plate 20, waist round blocks 21 are fixedly connected to two sides of the sliding plate 20, a connecting column 22 is fixedly connected to one side of each waist round block 21, which is close to the square tube seat 15, one end of each connecting column 22, which is far away from each waist round block 21, is fixedly connected with a wedge block 23, and the wedge block 23 penetrates through a square groove 1501 and is movably inserted into a locking groove 1401.

As a technical optimization scheme of the invention, a round hole corresponding to the positioning and supporting round rod 16 is formed in the oval block 21, the positioning and supporting round rod 16 is movably inserted into the round hole of the oval block 21, and the arranged oval block 21 can limit and support the connecting column 22 and the wedge block 23.

As a technical optimization scheme of the invention, the top of the wedge-shaped block 23 is fixedly connected with a limiting block 24, the side wall of the limiting block 24 is provided with a round hole corresponding to the positioning support round rod 16, and the arranged limiting block 24 can further limit and support the wedge-shaped block 23, so as to ensure the stable stress of the wedge-shaped block 23.

When the filter screen main body 13 is installed and fixed, the filter screen main body 13 can be fixed on the installation frame 12 by using bolts, then the upper filter cartridge 5 is arranged above the lower filter cartridge 4, the inserting block 14 is aligned with the square tube seat 15 and inserted downwards, the lower clamping ring plate 401 is attached to the upper clamping ring plate 501, at the moment, the installation and the fixation of the filter screen main body 13 and the clamping of the lower filter cartridge 4 and the upper filter cartridge 5 can be realized by rotating the screw rod 19, the sealing effect of the interface is good after the lower filter cartridge 4 and the upper filter cartridge 5 are clamped, after the screw rod 19 rotates, the screw rod 19 spirally moves along the nut seat 18, the screw rod 19 pushes the sliding plate 20 to move, the sliding plate 20 drives the waist round block 21 to slide along the positioning support round rod 16, the waist round block 21 drives the connecting column 22 to move, the connecting column 22 drives the wedge-shaped block 23 to be inserted into the wedge groove 1501 and the locking groove 1401, the inclined plane of wedge 23 can extrude the inner wall of locking groove 1401, and then guarantees that inserted block 14 drives joint crown plate 501 and the inseparable block of joint crown plate 401 down, consequently makes sealed effectual, and the later stage need pull down filter screen main part 13 when clearing up or changing, with above-mentioned installation otherwise can, easy operation is convenient, labour saving and time saving.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.