CN113309082A

CN113309082A - Dust-raising-prevention pile casing device for fender pile construction

Info

Publication number: CN113309082A
Application number: CN202110562187.4A
Authority: CN
Inventors: 王言旭
Original assignee: Guangdong Nanfeng Construction Engineering Co ltd
Current assignee: Guangdong Nanfeng Construction Engineering Co ltd
Priority date: 2021-05-24
Filing date: 2021-05-24
Publication date: 2021-08-27
Anticipated expiration: 2041-05-24
Also published as: CN113309082B

Abstract

A dust-raising prevention pile casing device for fender pile construction relates to the field of fender pile construction, and comprises a detention casing, a flange I, a disassembly half casing, a half flange, a support casing, a flange II, a fastener I and a dust guard plate; two groups of the disassembled half cylinders are spliced to form a perfusion cylinder; the dustproof plate is arranged in the perfusion cylinder, and a perfusion tube is arranged on the dustproof plate; the supporting cylinder is arranged at the periphery of the pouring cylinder; the flange I, the half flange and the flange II are sequentially overlapped and connected through a fastener I; a plurality of groups of positioning components for disassembling the half cylinder are arranged on the supporting cylinder along the circumference. The invention is convenient to assemble and disassemble, and ensures the sealing property and stability of the perfusion cylinder; the positioning assembly is arranged, so that the axial position and the verticality of the pouring cylinder are realized, and the pouring effect of the fender pile is ensured; set up altitude mixture control subassembly and dust guard cooperation, satisfy the high demand of different fender piles, reduce raise dust in the work progress.

Description

Dust-raising-prevention pile casing device for fender pile construction

Technical Field

The invention relates to the field of fender pile construction, in particular to a dust-raising-prevention fender casing device for fender pile construction.

Background

The construction of fender post is a method for developing and utilizing underground space and building various underground buildings of multi-layer basement, underground railway, underground commercial street, etc. There are gravity type mixing pile retaining wall, underground continuous wall, pile row retaining wall, etc. The fender pile construction not only can ensure the stability of a foundation pit and the safety and convenience of operation in the pit, but also can ensure that the displacement of a soil body at the bottom of the pit and outside the pit is controlled within a certain range, ensure the normal use of adjacent buildings and municipal facilities, and be matched with a fender sleeve during pouring. The existing fender pile construction fender sleeve is inconvenient to install and disassemble, the dust-raising-prevention performance is poor, the axial position and the perpendicularity are inconvenient to adjust, and the construction effect is influenced.

Disclosure of Invention

Objects of the invention

In order to solve the technical problems in the background art, the invention provides a dust-raising-prevention pile casing device for fender pile construction. The invention is convenient to assemble and disassemble, and ensures the sealing property and stability of the perfusion cylinder; the positioning assembly is arranged, so that the axial position and the verticality of the pouring cylinder are realized, and the pouring effect of the fender pile is ensured; set up altitude mixture control subassembly and dust guard cooperation, satisfy the high demand of different fender piles, reduce raise dust in the work progress.

(II) technical scheme

In order to solve the problems, the invention provides a dust-raising-prevention pile casing device for fender pile construction, which comprises a detention cylinder, a first flange, a detachable half cylinder, a half flange, a support cylinder, a second flange, a first fastener and a dust guard plate, wherein the detention cylinder is arranged on the first flange; the first flange is arranged at the top end of the detention cylinder; two groups of the disassembled half cylinders are spliced to form a perfusion cylinder; the half flange is arranged at the bottom end of the dismounting half cylinder; the dustproof plate is arranged in the perfusion cylinder, and a perfusion tube is arranged on the dustproof plate; the supporting cylinder is arranged at the periphery of the pouring cylinder; the second flange is arranged at the bottom end of the supporting cylinder; the flange I, the half flange and the flange II are sequentially overlapped and connected through a fastener I; a plurality of groups of positioning components acting on the disassembly half cylinder are arranged on the supporting cylinder along the circumference; the positioning assembly comprises an installation frame, a threaded rod, a positioning seat, a handle, a moving frame, a rack, a first gear, a connecting rod, a positioning roller and a second fastener; a through groove is formed in the supporting cylinder; the mounting frame is arranged on the outer wall of the supporting cylinder at a position corresponding to the through groove, and the upper end and the lower end of the mounting frame are provided with sliding grooves; the upper end and the lower end of the movable frame horizontally slide along the corresponding sliding grooves and are fixed through the second fastening piece, and the movable frame is provided with a through hole; the rack is arranged at the upper end and the lower end of the movable frame; the first gear is rotatably arranged at the upper end and the lower end of the groove wall of the through groove and meshed with the corresponding rack; one end of the connecting rod extends into the through groove and is connected with the first gear, and the other end of the connecting rod extends to a position between the perfusion cylinder and the support cylinder and is rotatably connected with the positioning roller; the threaded rod is arranged on the through groove, one end of the threaded rod penetrates through the through hole to be in threaded connection with the mounting frame, the threaded rod is connected with the handle, and the other end of the threaded rod extends to a position between the perfusion cylinder and the support cylinder to be connected with the positioning seat.

Preferably, the positioning assembly further comprises an elastic resetting piece; one end of the elastic reset piece is connected with the movable frame, and the other end of the elastic reset piece is connected with the outer wall of the supporting cylinder.

Preferably, a plurality of groups of height adjusting assemblies are arranged on the dust guard; the plurality of groups of height adjusting assemblies are arranged along the circumference, and each group comprises an adjusting rod, a mounting seat, a moving block, a moving rod, a vacuum adsorption head and a guide rod; the mounting seat is arranged on the dust guard, the upper end of the mounting seat is connected with the guide rod, and the lower end of the mounting seat is provided with a threaded hole; the adjusting rod is provided with a threaded section and is in threaded connection with the mounting seat through the threaded section; the moving block is in threaded connection with the threaded section and is in sliding connection with the dust guard; one end of the moving rod is slidably connected with one side of the guide rod, which is far away from the mounting seat, and the other end of the moving rod faces to the inner wall of the dismounting half cylinder and is connected with the vacuum adsorption head.

Preferably, the moving rod is provided with a valve communicated with the vacuum adsorption head.

Preferably, one end of the adjusting rod, which is far away from the vacuum adsorption head, is provided with a second gear; the perfusion tube is rotatably arranged on the dustproof plate through a bearing, the lower end of the outer wall is in key connection with a gear III, and the upper end of the outer wall is provided with a rotary sleeve; the third gear is meshed with the second gear.

Preferably, the dust guard is provided with a mounting hole for the steel bar to pass through; the installation hole is provided with a dustproof plug for clamping and disassembling.

Preferably, the two groups of the half dismounting cylinders are spliced through the connecting component; the connecting assembly comprises a connecting plate, a connecting block, a third fastener and fastening nails; the connecting plate is arranged at the joint position of the two groups of the half dismounting cylinders, is provided with an installation groove and is connected with the two groups of the half dismounting cylinders through fastening nails; the connecting blocks are arranged on the two sets of disassembly half cylinders in pairs, and are in a superposition state in the construction process, one end of each connecting block is clamped with the corresponding mounting groove, the other end of each connecting block extends out of the corresponding mounting groove, and the connecting fasteners are three.

Preferably, the first fastener, the second fastener and the third fastener are all matched structures of bolts and nuts.

Preferably, the bottom of the detention cylinder is provided with a mounting ring; the bottom of the mounting ring is provided with a fixed tooth.

The invention provides a dust-raising-prevention pile casing device for fender pile construction, which comprises the following working methods:

s1, inserting the fixed teeth of the detention cylinder into soil, and driving the detention cylinder into a certain depth;

s2, splicing the two groups of the disassembly half cylinders, wherein the connecting blocks are opposite in pairs;

s3, fitting the connecting plate to the joint position, enabling the connecting block to penetrate through the mounting groove and to be fixed by the third fastener, and fixing the connecting plate on the dismounting half cylinder by the fastening nail;

s4, placing the spliced perfusion cylinder on the detention cylinder by adopting lifting equipment, then placing the support cylinder outside the perfusion cylinder, and connecting the flange I, the half flange and the flange II by using a fastener I to finish the primary installation of the device;

s5, operating the positioning assembly to adjust the axis and the verticality of the pouring cylinder, and operating as follows: rotating the handle, moving the threaded rod along the mounting rack to enable the positioning seat to abut against the half dismounting cylinder, then pulling the moving rack to drive the rack to move, rotating the first gear, moving the positioning roller towards the half dismounting cylinder until the positioning roller abuts against the half dismounting cylinder, and finally fixing the moving rack through the second fastening piece;

s6, placing the dust guard plate into the pouring cylinder to enable the height of the dust guard plate to be matched with that of the fender post;

s7, operating the height adjusting assembly to fix the position of the dust guard plate, and operating as follows: the rotating sleeve is rotated, the multiple groups of adjusting rods synchronously rotate through transmission of the second gear and the third gear, and the moving block drives the vacuum adsorption head to synchronously move until the inner wall of the perfusion cylinder is adsorbed;

s8, opening the mounting hole, inserting a steel bar, and adding concrete slurry into the pouring cylinder through the pouring pipe;

s9, after the concrete is formed, adding water into the pouring cylinder through the pouring pipe or connecting the pouring cylinder with external dust collecting equipment to reduce dust;

s10, detaching the dust guard, supporting the cylinder and detaching the half cylinder.

The technical scheme of the invention has the following beneficial technical effects:

the retaining cylinder is arranged, and the stability of the fender post is high through fixing teeth;

the connecting assembly is arranged, the connecting plate is attached to the joint position, the connecting block penetrates through the mounting groove and is fixed by the fastener III, and the connecting plate is fixed on the dismounting half cylinder by the fastening nail, so that the mounting and dismounting are convenient, and the sealing property and the stability of the filling cylinder are ensured;

thirdly, the positioning assembly is arranged, the positioning seat is abutted against the half dismounting cylinder by rotating the handle, and the positioning roller is abutted against the half dismounting cylinder by pulling the moving frame, so that the axial position and the verticality of the pouring cylinder are realized, and the pouring effect of the fender post is ensured;

and fourthly, the height adjusting assembly is arranged to be matched with the dust guard plate, the position of the dust guard plate is fixed, so that the height requirements of different fender piles are met, the reinforcing steel bars are fixed, and meanwhile, dust in the construction process is reduced.

Drawings

Fig. 1 is a schematic structural diagram of a dust-proof casing device for fender pile construction according to the present invention.

Fig. 2 is a first sectional view of fig. 1.

Fig. 3 is a second cross-sectional view of fig. 1.

Fig. 4 is a top view of a dust-proof casing device for fender pile construction according to the present invention.

Fig. 5 is a schematic structural diagram of a positioning assembly in a dust-proof cylinder protecting device for fender pile construction according to the present invention.

Fig. 6 is a top view of a positioning assembly in a dust-proof casing device for fender pile construction according to the present invention.

Fig. 7 is a schematic structural diagram of a height adjusting assembly in a dust-proof casing device for fender pile construction according to the present invention.

Fig. 8 is a schematic structural diagram at B in fig. 4.

Fig. 9 is a schematic partial structure view of a connection assembly in a dust-proof cylinder protecting device for fender pile construction according to the present invention.

The attached drawings are marked as follows: 1. a retention cylinder; 2. a first flange; 3. disassembling the half cylinder; 4. a half flange; 5. a support cylinder; 6. a second flange; 7. a first fastener; 8. a dust-proof plate; 9. a perfusion tube; 10. a positioning assembly; 11. a height adjustment assembly; 12. a through groove; 13. a mounting frame; 14. a threaded rod; 15. positioning seats; 16. a handle; 17. a movable frame; 18. an elastic reset member; 19. a rack; 20. a first gear; 21. a connecting rod; 22. a positioning roller; 23. a chute; 24. a second fastener; 25. a third gear; 26. a rotating sleeve; 27. a second gear; 28. adjusting a rod; 29. a mounting seat; 30. a moving block; 31. a travel bar; 32. a vacuum adsorption head; 33. a guide bar; 34. a valve; 35. a connecting plate; 36. connecting blocks; 37. a third fastener; 38. fastening nails; 39. a mounting ring; 40. fixing teeth; 41. and (7) installing holes.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

Example 1

As shown in fig. 1-9, the dust-proof pile casing device for fender pile construction provided by the invention comprises a detention casing 1, a flange one 2, a disassembly half casing 3, a half flange 4, a support casing 5, a flange two 6, a fastener one 7 and a dust guard 8; the flange I2 is arranged at the top end of the detention cylinder 1; two groups of the disassembly half cylinders 3 are arranged and spliced into a perfusion cylinder; the half flange 4 is arranged at the bottom end of the dismounting half cylinder 3; the dust guard 8 is arranged in the perfusion cylinder, and a perfusion tube 9 is arranged on the dust guard 8; the supporting cylinder 5 is arranged at the periphery of the pouring cylinder; the second flange 6 is arranged at the bottom end of the supporting cylinder 5; the flange I2, the half flange 4 and the flange II 6 are sequentially overlapped and connected through a fastener I7; a plurality of groups of positioning components 10 which act on the disassembly half cylinder 3 are arranged on the supporting cylinder 5 along the circumference; the positioning assembly 10 comprises a mounting frame 13, a threaded rod 14, a positioning seat 15, a handle 16, a moving frame 17, a rack 19, a first gear 20, a connecting rod 21, a positioning roller 22 and a second fastener 24; the supporting cylinder 5 is provided with a through groove 12; the mounting frame 13 is arranged on the outer wall of the supporting cylinder 5 at a position corresponding to the through groove 12, and the upper end and the lower end of the mounting frame 13 are provided with sliding grooves 23; the upper end and the lower end of the movable frame 17 horizontally slide along the corresponding sliding grooves 23 and are fixed through a second fastening piece 24, and through holes are formed in the movable frame 17; the rack 19 is arranged at the upper end and the lower end of the movable frame 17; the first gear 20 is rotatably arranged at the upper end and the lower end of the groove wall of the through groove 12 and is meshed with the corresponding rack 19; one end of a connecting rod 21 extends into the through groove 12 and is connected with a first gear 20, the other end of the connecting rod extends to a position between the perfusion cylinder and the support cylinder 5, and the connecting rod is rotatably connected with a positioning roller 22; the threaded rod 14 is arranged on the through groove 12, one end of the threaded rod penetrates through the through hole to be in threaded connection with the mounting frame 13, meanwhile, the threaded rod is connected with the handle 16, and the other end of the threaded rod extends to a position between the perfusion cylinder and the support cylinder 5 to be connected with the positioning seat 15.

In an alternative embodiment, positioning assembly 10 further includes a resilient return member 18; one end of the elastic reset piece 18 is connected with the movable frame 17, and the other end is connected with the outer wall of the supporting cylinder 5.

In an alternative embodiment, the dust-proof plate 8 is provided with a plurality of sets of height adjustment assemblies 11; the plurality of groups of height adjusting assemblies 11 are arranged along the circumference, and each group comprises an adjusting rod 28, a mounting seat 29, a moving block 30, a moving rod 31, a vacuum adsorption head 32 and a guide rod 33; the mounting seat 29 is arranged on the dust guard 8, the upper end of the mounting seat is connected with the guide rod 33, and the lower end of the mounting seat is provided with a threaded hole; the adjusting rod 28 is provided with a thread section and is in threaded connection with the mounting seat 29 through the thread section; the moving block 30 is in threaded connection with the threaded section and is in sliding connection with the dust guard 8; one end of the moving rod 31 is slidably connected with one side of the guide rod 33 far away from the mounting seat 29, and the other end faces the inner wall of the dismounting half-cylinder 3 and is connected with the vacuum adsorption head 32.

In an alternative embodiment, the movable rod 31 is provided with a valve 34 communicating with the vacuum suction head 32.

In an alternative embodiment, the end of the adjusting rod 28 far away from the vacuum adsorption head 32 is provided with a second gear 27; the perfusion tube 9 is rotatably arranged on the dustproof plate 8 through a bearing, the lower end of the outer wall is in key connection with a gear III 25, and the upper end is provided with a rotary sleeve 26; the third gear 25 is meshed with the second gear 27.

In an alternative embodiment, the dust-proof plate 8 is provided with a mounting hole 41 for passing a steel bar; the mounting hole 41 is provided with a dust plug for detaching the card.

In an alternative embodiment, the two sets of takedown half-cylinders 3 are spliced by a connecting assembly; the connecting assembly comprises a connecting plate 35, a connecting block 36, a third fastener 37 and a fastening nail 38; the connecting plate 35 is arranged at the joint position of the two groups of the half dismounting cylinders 3, the connecting plate 35 is provided with an installation groove, and the two groups of the half dismounting cylinders 3 are connected through fastening nails 38; connecting block 36 sets up in pairs on two sets of half section of thick bamboo 3 of dismantlement, and is the stack state in the work progress, one end and mounting groove block, and the mounting groove is stretched out to the other end, connecting fastener three 37.

In an alternative embodiment, fastener one 7, fastener two 24, and fastener three 37 are all bolt and nut mating structures.

In an alternative embodiment, the bottom of the retention tube 1 is provided with a mounting ring 39; the bottom of the mounting ring 39 is provided with stationary teeth 40.

The retaining cylinder 1 is arranged, and the retaining teeth 40 are fixed, so that the stability of the fender post is high; a connecting assembly is arranged, the connecting plate 35 is attached to the joint position, the connecting block 36 penetrates through the mounting groove and is fixed by a third fastening piece 37, and the connecting plate 35 is fixed on the dismounting half cylinder 3 by a fastening nail 38, so that the mounting and dismounting are convenient, and the sealing performance and the stability of the pouring cylinder are ensured; the positioning assembly 10 is arranged, the positioning seat 15 is abutted against the dismounting half cylinder 3 by rotating the handle 16, and the positioning roller 22 is abutted against the dismounting half cylinder 3 by pulling the moving frame 17, so that the axial position and the verticality of the perfusion cylinder are realized, and the perfusion effect of the fender post is ensured; set up height adjusting assembly 11 and the cooperation of dust guard 8, fix dust guard 8 positions to satisfy the high demand of different fender piles, fix the reinforcing bar, reduce raise dust in the work progress simultaneously.

Example 2

s1, inserting the fixing teeth 40 of the detention cylinder 1 into soil, and driving the detention cylinder 1 into a certain depth;

s2, splicing the two groups of the disassembly half cylinders 3, wherein the connecting blocks 36 are opposite in pairs;

s3, attaching the connecting plate 35 to the joint position, enabling the connecting block 36 to penetrate through the mounting groove and be fixed by a third fastening piece 37, and fixing the connecting plate 35 on the dismounting half cylinder 3 by a fastening nail 38;

s4, placing the spliced perfusion cylinder on the detention cylinder 1 by adopting lifting equipment, placing the support cylinder 5 outside the perfusion cylinder, and connecting the flange I2, the half flange 4 and the flange II 6 by using a fastener I7 to finish the primary installation of the device;

s5, operating the positioning assembly 10 to adjust the axis and perpendicularity of the pouring cylinder, the operations are as follows: rotating the handle 16, moving the threaded rod 14 along the mounting frame 13 to enable the positioning seat 15 to abut against the half dismounting cylinder 3, then pulling the moving frame 17 to drive the rack 19 to move, rotating the first gear 20, moving the positioning roller 22 towards the half dismounting cylinder 3 until the positioning roller abuts against the half dismounting cylinder 3, and finally fixing the moving frame 17 through the second fastening piece 24;

s6, placing the dust guard plate 8 into the pouring cylinder to enable the height of the dust guard plate to be matched with that of the fender post;

s7, operating the height adjusting assembly 11 to fix the position of the dust-proof plate 8, and operating as follows: the rotating sleeve 26 is rotated, the transmission is realized through the second gear 27 and the third gear 25, the multiple groups of adjusting rods 28 synchronously rotate, and the moving block 30 drives the vacuum adsorption head 32 to synchronously move until the inner wall of the perfusion cylinder is adsorbed;

s8, opening the mounting hole 41, inserting a steel bar, and adding concrete slurry into the pouring cylinder through the pouring pipe 9;

s9, after the concrete is formed, adding water into the pouring cylinder through the pouring pipe 9 or connecting the pouring cylinder with external dust collecting equipment to reduce dust;

s10, detaching the dust-proof plate 8, supporting the cylinder 5 and detaching the half cylinder 3.

The device disclosed by the invention is simple in working method, convenient to install and disassemble, small in dust emission and good in filling effect.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. A dust-raising prevention pile casing device for fender pile construction comprises a detention casing (1), a flange I (2), a disassembly half casing (3), a half flange (4), a support casing (5), a flange II (6), a fastener I (7) and a dust guard (8); the first flange (2) is arranged at the top end of the detention cylinder (1); two groups of the disassembly half cylinders (3) are arranged and spliced into a perfusion cylinder; the half flange (4) is arranged at the bottom end of the dismounting half cylinder (3); the dustproof plate (8) is arranged in the filling cylinder, and a filling pipe (9) is arranged on the dustproof plate (8); the supporting cylinder (5) is arranged at the periphery of the pouring cylinder; the second flange (6) is arranged at the bottom end of the supporting cylinder (5); the flange I (2), the half flange (4) and the flange II (6) are sequentially overlapped and connected through a fastener I (7); it is characterized in that a plurality of positioning components (10) acting on the disassembly half cylinder (3) are arranged on the supporting cylinder (5) along the circumference;

the positioning assembly (10) comprises a mounting frame (13), a threaded rod (14), a positioning seat (15), a handle (16), a moving frame (17), a rack (19), a first gear (20), a connecting rod (21), a positioning roller (22) and a second fastener (24); a through groove (12) is arranged on the supporting cylinder (5); the mounting frame (13) is arranged on the outer wall of the supporting cylinder (5) corresponding to the through groove (12), and the upper end and the lower end of the mounting frame (13) are provided with sliding grooves (23); the upper end and the lower end of the movable frame (17) horizontally slide along the corresponding sliding grooves (23) and are fixed through a second fastening piece (24), and through holes are formed in the movable frame (17); the racks (19) are arranged at the upper end and the lower end of the movable frame (17); the first gear (20) is rotatably arranged at the upper end and the lower end of the groove wall of the through groove (12) and is meshed with the corresponding rack (19); one end of a connecting rod (21) extends into the through groove (12) and is connected with a first gear (20), and the other end of the connecting rod extends to a position between the perfusion cylinder and the support cylinder (5) and is rotatably connected with a positioning roller (22); threaded rod (14) set up on logical groove (12), and the through-hole is passed to one end, with mounting bracket (13) threaded connection, connects handle (16) simultaneously, and the other end extends to and fills between drum and the support cylinder (5), connects positioning seat (15).

2. A dust-proofing casing arrangement for fender post construction according to claim 1, wherein the locating assembly (10) further comprises an elastic return member (18); one end of the elastic reset piece (18) is connected with the movable frame (17), and the other end is connected with the outer wall of the supporting cylinder (5).

3. A dust-raising-preventing casing device for fender pile construction according to claim 1, wherein a plurality of sets of height adjusting components (11) are arranged on the dust guard (8); the multiple groups of height adjusting assemblies (11) are arranged along the circumference, and each group comprises an adjusting rod (28), a mounting seat (29), a moving block (30), a moving rod (31), a vacuum adsorption head (32) and a guide rod (33); the mounting seat (29) is arranged on the dust guard (8), the upper end of the mounting seat is connected with the guide rod (33), and the lower end of the mounting seat is provided with a threaded hole; the adjusting rod (28) is provided with a thread section and is in threaded connection with the mounting seat (29) through the thread section; the moving block (30) is in threaded connection with the threaded section and is in sliding connection with the dust guard (8); one end of the moving rod (31) is connected with one side of the guide rod (33) far away from the mounting seat (29) in a sliding way, and the other end faces the inner wall of the dismounting half cylinder (3) and is connected with the vacuum adsorption head (32).

4. A dust-proofing casing device for fender post construction according to claim 3, characterized in that the movable rod (31) is provided with a valve (34) communicated with the vacuum suction head (32).

5. A dust-proof casing device for fender pile construction according to claim 3, wherein a second gear (27) is arranged at one end of the adjusting rod (28) far away from the vacuum adsorption head (32); the perfusion tube (9) is rotatably arranged on the dust guard (8) through a bearing, the lower end of the outer wall is in key connection with a gear III (25), and the upper end is provided with a rotary sleeve (26); the third gear (25) is meshed with the second gear (27).

6. A dust-proof casing device for fender post construction according to claim 1, wherein the dust guard plate (8) is provided with a mounting hole (41) for passing a steel bar; the mounting hole (41) is provided with a dustproof plug for clamping and dismounting.

7. A dust-proof casing device for fender pile construction according to claim 1, wherein the two sets of half-casings (3) are spliced by a connecting component; the connecting assembly comprises a connecting plate (35), a connecting block (36), a fastener III (37) and a fastening nail (38); the connecting plate (35) is arranged at the joint position of the two groups of the dismounting half cylinders (3), the connecting plate (35) is provided with a mounting groove and is connected with the two groups of the dismounting half cylinders (3) through fastening nails (38); connecting block (36) set up in pairs on two sets of half section of thick bamboo (3) of dismantlement, and be the stack state in the work progress, one end and mounting groove block, the mounting groove is stretched out to the other end, connecting fastener three (37).

8. A dust-proof casing device for fender pile construction according to claim 7, wherein the first fastener (7), the second fastener (24) and the third fastener (37) are all matched structures of bolt and nut.

9. A dust-proof casing device for fender post construction according to claim 1, wherein the bottom of the detention casing (1) is provided with a mounting ring (39); the bottom of the mounting ring (39) is provided with a fixed tooth (40).

10. A dust-proof casing device for use in the construction of a fender pile according to any one of claims 1 to 9, wherein the working method comprises:

s1, inserting the fixing teeth (40) of the detention cylinder (1) into soil, and driving the detention cylinder (1) into a certain depth;

s2, splicing the two groups of the disassembly half cylinders (3), wherein the connecting blocks (36) are opposite in pairs;

s3, attaching the connecting plate (35) to the joint position, enabling the connecting block (36) to penetrate through the mounting groove and be fixed by a third fastener (37), and fixing the connecting plate (35) on the detachable half cylinder (3) by a fastening nail (38);

s4, placing the spliced perfusion cylinder on the detention cylinder (1) by adopting lifting equipment, then placing the support cylinder (5) outside the perfusion cylinder, and connecting the flange I (2), the half flange (4) and the flange II (6) by using a fastener I (7) to finish the primary installation of the device;

s5, operating the positioning assembly (10) to adjust the axis and the verticality of the perfusion cylinder, and operating as follows: the handle (16) is rotated, the threaded rod (14) moves along the mounting frame (13), so that the positioning seat (15) props against the half dismounting cylinder (3), then the moving frame (17) is pulled to drive the rack (19) to move, the first gear (20) rotates, the positioning roller (22) moves towards the half dismounting cylinder (3) until the positioning roller props against the half dismounting cylinder (3), and finally the moving frame (17) is fixed through the second fastener (24);

s6, placing the dust guard plate (8) into the pouring cylinder to enable the height of the dust guard plate to be matched with that of the fender post;

s7, operating the height adjusting assembly (11) to fix the position of the dust guard (8), and operating as follows: the rotating sleeve (26) is rotated, the gear II (27) and the gear III (25) are used for transmission, the multiple groups of adjusting rods (28) synchronously rotate, and the moving block (30) drives the vacuum adsorption head (32) to synchronously move until the inner wall of the perfusion cylinder is adsorbed;

s8, opening the mounting hole (41), inserting a steel bar, and adding concrete slurry into the pouring cylinder through the pouring pipe (9);

s9, after the concrete is formed, adding water into the pouring cylinder through the pouring pipe (9) or connecting the pouring cylinder with external dust collecting equipment to reduce dust;

s10, detaching the dust guard (8), the supporting cylinder (5) and the detaching half cylinder (3).