CN210830872U

CN210830872U - Spiral air duct connecting structure

Info

Publication number: CN210830872U
Application number: CN201921647957.XU
Authority: CN
Inventors: 戈振波; 丁荣达
Original assignee: Wuxi Shuangyang Hvac Equipment Co ltd
Current assignee: Wuxi Shuangyang Hvac Equipment Co ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-06-23
Anticipated expiration: 2029-09-29

Abstract

The utility model discloses a spiral duct connection structure, including first branch pipe and second branch pipe, still include collar and solid fixed ring that fix respectively at first branch pipe and second branch pipe both ends, set up at solid fixed ring towards collar lateral wall and along its circumference a plurality of inserted blocks of arranging, fix sealing washer and cover on collar lateral wall in collar of collar and establish the seal ring pad on the sealing washer lateral wall, the lateral wall of collar is equipped with a plurality of slots that supply the inserted block to insert along its circumference equipartition, be equipped with the cavity in the collar, be equipped with the locking Assembly who is used for fixed inserted block in the cavity, one end of sealing washer extends to in the fixed ring, be equipped with the coupling assembling that is used for fixed sealing washer in the solid fixed ring, the seal ring pad extends to between the relative lateral wall of collar and solid fixed ring, the relative lateral wall of collar and solid fixed ring all; this connection structure, sealed effectual avoids first branch pipe and second branch pipe phenomenon of leaking out to appear, has improved the stability of use.

Description

Spiral air duct connecting structure

Technical Field

The utility model relates to a technical field of spiral duct, in particular to spiral duct connection structure.

Background

The spiral air pipe is a thin-walled pipe which is made of metal tape material coils into a spiral seam, is round, has no welding, does not leak air or water, and is mainly used for air supply and bulk material conveying.

Can set up a plurality of branch pipes on the spiral duct usually, general spiral duct all adopts galvanized sheet iron to roll up the system and forms, and the connection between branch pipe and the spiral duct adopts galvanized rivet to connect after leaning on its turn-ups, because the spiral duct cross-section is circular, and the connector of branch pipe is the radian curved surface, so through rivet connection back, seals through sealed glass glue at its junction.

However, the existing connection to the spiral duct has the following use defects: because sealed glue exposes in the outdoor easy ageing for a long time, and spiral duct when the operation, can frequent vibration for glass glues and comes unstuck, leads to appearing leaking out the wind phenomenon between the branch pipe, and the leakproofness of tuber pipe is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a spiral duct connection structure, its advantage: have good sealed effect, the effectual phenomenon of leaking out that prevents to appear between a plurality of branch pipe junctions has strengthened the stability of connecting between a plurality of branch pipes.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a spiral air duct connecting structure comprises a first branch pipe, a second branch pipe, a mounting ring and a fixing ring which are respectively fixed at two ends of the first branch pipe and the second branch pipe, a plurality of inserting blocks which are arranged on the fixing ring and face the side wall of the mounting ring and are distributed along the circumferential direction of the fixing ring, a sealing ring fixed on the inner ring wall of the mounting ring and a sealing ring gasket sleeved on the side wall of the sealing ring, the side wall of the mounting ring is uniformly provided with a plurality of slots for inserting the insertion blocks along the circumferential direction, a cavity is arranged in the mounting ring, a locking component for fixing the insert block is arranged in the cavity, one end of the sealing ring extends into the fixing ring, a connecting component for fixing the sealing ring is arranged in the fixing ring, the sealing ring gasket extends to the space between the mounting ring and the opposite side wall of the fixing ring, the opposite side walls of the mounting ring and the fixing ring are provided with magnetic sealing elements and sealing ring gaskets.

According to the technical scheme, the sealing ring is inserted into the fixing ring, and the inserting block is inserted into the inserting groove, so that the sealing ring gasket blocks a connecting gap between the fixing ring and the mounting ring; secondly, the insert block can be fixed in the slot by utilizing the locking assembly, so that the mounting ring is stably connected with the fixing ring, and the first branch pipe and the second branch pipe can be stably connected; then, the magnetic sealing element is stably attached to the sealing ring gasket, so that the attaching tightness among the mounting ring, the fixing ring and the sealing ring gasket is enhanced, and the connection stability is improved; finally, the sealing ring extending into the fixing ring is fixed on the inner ring wall of the fixing ring by the connecting assembly, so that the sealing effect is further enhanced; the connecting structure formed by the structure has a good sealing effect, can avoid gas leakage from a connecting gap between the mounting ring and the fixing ring, and enhances the stability of connection between the first branch pipe and the second branch pipe.

The utility model discloses further set up to: locking assembly just follows a plurality of fluted discs of its circumference range, rotates in the cavity and respectively with a plurality of fluted disc meshed sawtooth rings, set up at the screw rod of fluted disc axle center department, set up bevel gear group and drive bevel gear group pivoted handle on one of them fluted disc deviates from the screw rod lateral wall at the cavity inner wall including rotating the setting, the outer wall that the collar was extended to the one end that bevel gear group was kept away from to the handle, the lateral wall of inserted block be equipped with screw rod screw-thread fit's screw hole.

According to the technical scheme, during installation, the handle is rotated to drive the bevel gear set to rotate, one fluted disc rotates, and then the other fluted discs are driven to synchronously rotate through the sawtooth ring, so that the screw rod rotates; meanwhile, the insert block is inserted into the slot, and the screw rod can be rotated into the threaded hole along with the rotation of the screw rod, so that the fixation of the insert block is realized; this locking mode, twist grip alright realize the fixed connection of collar and solid fixed ring, the installation effectiveness is high.

The utility model discloses further set up to: the peripheral wall of the sawtooth ring is provided with an annular block, and the inner wall of the cavity is provided with an annular groove for the annular block to slide along the circumferential direction.

Through the technical scheme, the combination of the annular block and the annular groove has a limiting effect on the rotation of the sawtooth ring, and the stability of the rotation process of the sawtooth ring is improved.

The utility model discloses further set up to: the utility model discloses a solid fixed ring's picture peg, including the drive block that slides in logical inslot, the setting is located solid fixed ring's inner ring one end at the drive block and is the picture peg of L type, articulates locating plate and the screw at the drive block other end, the sealing washer is located the fixed orifices that the vertical end that the fixed ring intra-annular one end was equipped with a plurality of confession picture pegs passed along its circumference equipartition, gu fixed ring's inner ring wall is equipped with a plurality of fixed slots corresponding with the fixed slot along its circumference equipartition, the vertical end of picture peg passes fixed slot, fixed slot in proper order, the lateral wall of locating plate is equipped with the through-hole, gu fixed ring's outer wall is equipped with the connecting hole corresponding with the through-hole, the screw is by outer to interior through-.

According to the technical scheme, during installation, the positioning plate and the driving blocks are firstly rotated to be on the same horizontal straight line, and the driving blocks are pushed to slide, so that one ends of the driving blocks, which are positioned in the fixed ring, are close to each other; secondly, inserting one end of the sealing ring, which is far away from the mounting ring, into the fixing ring; then pulling the positioning plate to enable the vertical end of the inserting plate to sequentially penetrate through the fixing hole and the fixing groove, so that the sealing ring is tightly attached to the inner annular wall of the fixing ring; and finally, the positioning plate is rotated again, so that the positioning plate faces the outer wall of the fixing ring, the screws are sequentially inserted into the through holes and the connecting holes from outside to inside, the positioning plate can be fixed, the driving block is prevented from moving, and the stability of fixing the sealing ring is improved.

The utility model discloses further set up to: the cell wall that leads to the groove is equipped with rather than the axial syntropy spout, the diapire of drive block is equipped with the slider that slides at the spacing inslot, the lateral wall that the slider deviates from the picture peg is equipped with the spring, the one end that the slider was kept away from to the spring is fixed on the cell wall of spout.

Through the technical scheme, the driving block can stably slide by the cooperation of the sliding block and the sliding groove; the setting of spring plays limiting displacement to the removal of drive block, and the spring setting is on the lateral wall that the slider deviates from the picture peg for insert the picture peg back in the fixed slot, utilize the elasticity of spring, can pull the slider and slide to the inner ring direction of keeping away from solid fixed ring, and then can support the vertical end of picture peg tightly in the fixed slot, improved the stability that the picture peg was fixed in the slot.

The utility model discloses further set up to: the magnetic sealing piece is a magnetic sealing pad which is respectively arranged on the opposite side walls of the mounting ring and the fixing ring, and the side walls, which are contacted with the sealing ring pad, of the magnetic sealing pad are both in a wave shape matched with the concave-convex shape.

Through above-mentioned technical scheme, utilize the magnetism of the sealed pad of magnetism, can closely laminate with the seal ring pad, the sealed pad of seal ring cooperates with the unsmooth cooperation of the lateral wall of the sealed pad of magnetism simultaneously, has further strengthened the compactness with the laminating of seal ring pad, and then has improved sealed effect, and the effectual junction that prevents first branch pipe and second branch pipe phenomenon of leaking out appears, provides the stability of using.

The utility model discloses further set up to: the outer wall of the inserting plate is coated with a silica gel pad which is contacted with the sealing ring.

Through above-mentioned technical scheme, insert the picture peg back in fixed orifices, the fixed slot, the inseparable degree of picture peg and sealing washer laminating has been strengthened to the contact of silica gel pad and sealing washer, and then has improved the stability fixed to the sealing washer.

The utility model discloses further set up to: the outer wall that the cover was equipped with gasket and solid fixed ring on the screw is laminated.

Through above-mentioned technical scheme, set up the gasket, be convenient for adjust the distance between locating plate and the solid fixed ring outer wall, and then strengthened the stability that the screw is fixed the locating plate on solid fixed ring outer wall.

To sum up, the utility model discloses following beneficial effect has:

1. inserting the insertion block into the slot, and fixing the insertion block in the slot by using the locking assembly so that the mounting ring and the fixing ring are stably connected; the sealing ring gasket extends into a connecting gap between the fixing ring and the mounting ring, and the magnetic sealing element is stably attached to the sealing ring gasket, so that the attaching tightness among the mounting ring, the fixing ring and the sealing ring gasket is enhanced, and the sealing effect is good; the sealing ring is fixed on the inner ring wall of the fixing ring through the connecting assembly, so that the sealing effect is further enhanced, gas can be prevented from leaking from a connecting gap between the mounting ring and the fixing ring, and the stability in the using process is improved;

2. the handle is rotated to drive the bevel gear set to rotate, one fluted disc rotates, and then the other fluted discs are driven to synchronously rotate through the serrated ring, so that the screw rod rotates; meanwhile, the insert block is inserted into the slot, and the screw rod can be rotated into the threaded hole along with the rotation of the screw rod, so that the fixation of the insert block is realized; in the locking mode, the fixed connection between the mounting ring and the fixing ring can be realized by rotating the handle, and the mounting efficiency is high;

3. firstly, the driving blocks are pushed to slide, so that one ends of the driving blocks, which are positioned in the fixed ring, are close to each other; inserting one end of the sealing ring far away from the mounting ring into the fixing ring; then pulling the positioning plate to enable the vertical end of the inserting plate to sequentially penetrate through the fixing hole and the fixing groove, so that the sealing ring is tightly attached to the inner annular wall of the fixing ring; and finally, the screws are sequentially inserted into the through holes and the connecting holes from outside to inside, so that the positioning plate can be fixed, the driving block is prevented from moving, and the stability of fixing the sealing ring is improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present embodiment.

Fig. 2 is a schematic side sectional view of the present embodiment.

Fig. 3 is an enlarged schematic structural view for embodying the portion a in fig. 2.

Fig. 4 is a schematic structural view for embodying the locking assembly.

Fig. 5 is an enlarged schematic structural view for embodying the portion B in fig. 2.

Reference numerals: 1. a first branch pipe; 2. a second branch pipe; 3. a mounting ring; 4. a fixing ring; 5. inserting a block; 6. a seal ring; 7. a sealing ring gasket; 8. a locking assembly; 81. a fluted disc; 82. a sawtooth ring; 83. a screw; 84. a bevel gear set; 85. a handle; 9. a connecting assembly; 91. a drive block; 92. inserting plates; 93. positioning a plate; 94. a screw; 10. a magnetic seal; 101. a magnetic gasket; 11. a slot; 12. a cavity; 13. a threaded hole; 14. a ring block; 15. an annular groove; 16. a through groove; 17. a fixing hole; 18. fixing grooves; 19. a through hole; 20. connecting holes; 21. a chute; 22. a slider; 23. a spring; 24. a silica gel pad; 25. and (7) a gasket.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

a spiral air pipe connecting structure, referring to fig. 1, comprises a first branch pipe 1 and a second branch pipe 2 which are sequentially arranged from left to right, wherein the first branch pipe 1 and the second branch pipe 2 are spiral air pipes.

Referring to fig. 1 and 2, two ends of a first branch pipe 1 and a second branch pipe 2 are respectively fixedly welded with a mounting ring 3 and a fixing ring 4, the side wall of the fixing ring 4 facing the mounting ring 3 is uniformly provided with a plurality of inserting blocks 5 (the number is preferably 4) along the circumferential direction, the side wall of the mounting ring 3 is provided with inserting slots 11 corresponding to the inserting blocks 5, a cavity 12 communicated with the inserting slots 11 is arranged in the mounting ring 3, and a locking assembly 8 for fixing the inserting blocks 5 in the inserting slots 11 is arranged in the cavity 12, so that the fixed connection between the mounting ring 3 and the fixing ring 4 is realized, and further the first branch pipe 1 is communicated with the second branch pipe 2; for the sealing performance between assurance collar 3 and solid fixed ring 4, be fixed with sealing washer 6 at the inner ring wall of collar 3, the outer lane cover of sealing washer 6 is equipped with seal ring pad 7, seal ring pad 7 extends to between the relative lateral wall of collar 3 and solid fixed ring 4, be equipped with the socket (not shown in the figure) that supplies inserted block 5 to pass on the seal ring pad 7, the one end of sealing washer 6 extends to in solid fixed ring 4, be equipped with coupling assembling 9 and sealing washer 6 fixed connection in solid fixed ring 4's the inner ring wall, in order to fill the clearance between collar 3 and the solid fixed ring 4 lateral walls, avoid gas leakage.

Referring to fig. 2 and 3, a magnetic sealing element 10 and a sealing ring gasket 7 are arranged between the opposite side walls of the mounting ring 3 and the fixing ring 4, the magnetic sealing element 10 is a magnetic sealing gasket 101 respectively arranged on the opposite side walls of the mounting ring 3 and the fixing ring 4, the magnetic sealing gasket 101 has good sealing performance, the opposite side walls of the two magnetic sealing gaskets 101 and the two side walls of the sealing ring gasket 7 are both set to be in a wave shape matched with each other in a concave-convex mode, the magnetism of the magnetic sealing gasket 101 is recycled, the tightness of the joint of the first branch pipe 1 and the second branch pipe 2 is further enhanced, the sealing effect is further improved, the air leakage phenomenon at the joint of the first branch pipe 1 and the second branch pipe 2 is effectively prevented.

Referring to fig. 2 and 3, the locking assembly 8 includes a plurality of toothed discs 81 (the number is preferably 4) rotatably disposed on the inner wall of the cavity 12 and arranged along the circumferential direction thereof, a toothed ring 82 rotatably disposed in the cavity 12 and respectively engaged with the 4 toothed discs 81, screw rods 83 respectively disposed at the axes of the 4 toothed discs 81, a bevel gear set 84 disposed at a position where one of the toothed discs 81 deviates from the axis of the side wall of the screw rod 83, and a handle 85 for driving the bevel gear set 84 to rotate, wherein the toothed ring 82 and the inner annular wall are provided with teeth, the bevel gear set 84 rotates on the inner wall of the cavity 12, one end of the handle 85 away from the bevel gear set 84 extends out of the outer wall of the mounting block, and the side wall of the insert block 5 is provided with a; during installation, the handle 85 is rotated to drive the bevel gear set 84 to rotate, one fluted disc 81 rotates, the other 3 fluted discs 81 are driven to rotate through the sawtooth ring 82, and the screw 83 rotates; meanwhile, the insert 5 is inserted into the slot 11, and the screw 83 can be rotated into the threaded hole 13 along with the rotation of the screw 83 and the sliding of the insert 5 in the slot 11, so that the insert 5 is fixed; in the locking mode, the handle 85 is rotated, so that the mounting ring 3 and the fixing ring 4 can be fixedly connected, and the mounting efficiency is high.

Referring to fig. 3 and 4, the outer annular wall of the sawtooth ring 82 is provided with the annular block 14, and the inner wall of the cavity 12 is provided with an annular groove 15 along the circumferential direction thereof for the annular block 14 to slide; the matching of the annular block 14 and the annular groove 15 has a limiting effect on the movement of the sawtooth ring 82, and the stability of the rotation process of the sawtooth ring 82 is improved.

Referring to fig. 2 and 5, the circumferential wall of the fixing ring 4 is uniformly provided with a plurality of through grooves 16 (the number is preferably 3) penetrating through the inner wall of the fixing ring along the circumferential direction, the connecting assembly 9 comprises a driving block 91 sliding in the through grooves 16, an inserting plate 92 arranged at one end of the driving block 91 positioned in the inner ring of the fixing ring 4 and in an L shape, a positioning plate 93 hinged at the other end of the driving block 91 and a screw 94, the width of the positioning plate 93 is matched with the radial direction of the through grooves 16, the positioning plate 93 is provided with a through hole 19, the outer wall of the fixing ring 4 is provided with a connecting hole 20 corresponding to the through hole 19, one end of the sealing ring 6 positioned in the fixing ring 4 is uniformly provided with a plurality of fixing holes 17 along the circumferential direction, and the inner ring wall;

when the device is installed, firstly, the positioning plate 93 is rotated to be on the same horizontal straight line with the driving blocks 91, and one ends of the 3 driving blocks 91 positioned in the fixing ring 4 are close to each other; secondly, inserting one end of the sealing ring 6 far away from the mounting ring 3 into the fixing ring 4; then pulling the positioning plate 93 to enable the vertical end of the inserting plate 92 to sequentially penetrate through the fixing hole 17 and the fixing groove 18, so that the sealing ring 6 is tightly attached to the inner annular wall of the fixing ring 4; finally, the positioning plate 93 is rotated, so that the positioning plate 93 faces the outer wall of the fixing ring 4, the screws 94 are sequentially inserted into the through holes 19 and the connecting holes 20 from outside to inside, the positioning plate 93 can be fixed, the driving block 91 is prevented from moving, and the stability of fixing the sealing ring 6 is improved.

Referring to fig. 5, a chute 21 in the same direction as the axial direction of the chute 16 is arranged on the chute wall of the through chute 16, a sliding block 22 sliding in the limiting chute is arranged on the bottom wall of the driving block 91, a spring 23 is arranged on the side wall of the sliding block 22 departing from the inserting plate 92, and one end of the spring 23 far away from the sliding block 22 is fixed on the chute wall of the chute 21; the slide block 22 is matched with the slide groove 21, so that the driving block 91 can stably slide; the arrangement of the spring 23 has a limiting effect on the movement of the driving block 91, the spring 23 is arranged on the side wall of the sliding block 22 departing from the inserting plate 92, so that after the inserting plate 92 is inserted into the fixing groove 18, the sliding block 22 can be pulled to slide towards the direction of the inner ring far away from the fixing ring 4 by the aid of the elastic force of the spring 23, the vertical end of the inserting plate 92 can be abutted against the fixing groove 18, and the stability of the inserting plate 92 fixed in the inserting groove 11 is improved.

Referring to fig. 5, the outer wall of the inserting plate 92 is coated with a silica gel pad 24 to contact with the sealing ring 6, and the arrangement of the silica gel pad 24 enhances the tightness of the attaching of the inserting plate 92 and the sealing ring 6, thereby improving the stability of fixing the sealing ring 6.

Referring to fig. 5, the outer wall laminating of gasket 25 and solid fixed ring 4 is overlapped on screw 94, because the thickness size of sealing washer 6 differs, the distance between locating plate 93 and the solid fixed ring 4 outer wall is convenient for adjust in the setting of gasket 25, and then has strengthened the stability that screw 94 fixes locating plate 93 on solid fixed ring 4 outer wall.

The working process is as follows: firstly, rotating a positioning plate 93 and a driving block 91 to be positioned on the same horizontal straight line, pushing the driving block 91 to slide, enabling three insertion plates 92 to be gradually far away from a fixing groove 18, then inserting a sealing ring 6 into a fixing ring 4, and further inserting an insertion block 5 into an insertion groove 11; then, the driving block 91 is released, the sliding block 22 is driven to slide in the sliding groove 21 by the elastic force of the spring 23, and the vertical end of the inserting plate 92 can be sequentially inserted into the fixing hole 17 and the fixing groove 18, so that the sealing ring 6 is fixed; handle 85 is rotated, and bevel gear group 84 rotates, and one of them fluted disc 81 rotates, drives other three fluted disc 81 synchronous rotation through serration ring 82, along with the inserting of inserted block 5, and then can rotate screw rod 83 to screw hole 13 in to two magnetic seal pads 101 and seal ring pad 7 closely laminate, have filled the gap between collar 3 and the solid fixed ring 4, avoid leaking gas.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a spiral duct connection structure, includes first branch pipe (1) and second branch pipe (2), its characterized in that: the sealing device is characterized by further comprising a mounting ring (3) and a fixing ring (4) which are respectively fixed at two ends of the first branch pipe (1) and the second branch pipe (2), a plurality of inserting blocks (5) arranged towards the side wall of the mounting ring (3) and along the circumferential direction of the fixing ring (4), a sealing ring (6) fixed on the inner ring wall of the mounting ring (3), and a sealing ring gasket (7) sleeved on the side wall of the sealing ring (6), wherein the side wall of the mounting ring (3) is uniformly provided with a plurality of inserting slots (11) for inserting the inserting blocks (5) along the circumferential direction, a cavity (12) is arranged in the mounting ring (3), a locking assembly (8) used for fixing the inserting blocks (5) is arranged in the cavity (12), one end of the sealing ring (6) extends into the fixing ring (4), a connecting assembly (9) used for fixing the sealing ring (6) is arranged in the fixing ring (4), and the sealing ring gasket (7) extends to a position between opposite, the opposite side walls of the mounting ring (3) and the fixing ring (4) are provided with magnetic sealing elements (10) and sealing ring gaskets (7) for attraction.

2. The spiral duct connection structure of claim 1, wherein: locking assembly (8) including rotate set up in cavity (12) inner wall and along a plurality of fluted discs (81) of its circumference range, rotate in cavity (12) and respectively with sawtooth ring (82) of a plurality of fluted discs (81) meshing, set up screw rod (83) of fluted disc (81) axle center department, set up bevel gear group (84) and drive bevel gear group (84) pivoted handle (85) on one of them fluted disc (81) deviates from screw rod (83) lateral wall, the outer wall of installing ring (3) is extended to the one end that bevel gear group (84) were kept away from in handle (85), the lateral wall of inserted block (5) is equipped with screw hole (13) with screw rod (83) screw-thread fit.

3. The spiral duct connection structure of claim 2, wherein: the peripheral wall of the sawtooth ring (82) is provided with an annular block (14), and the inner wall of the cavity (12) is provided with an annular groove (15) for the annular block (14) to slide along the circumferential direction.

4. The spiral duct connection structure of claim 1, wherein: the peripheral wall of the fixing ring (4) is uniformly provided with a plurality of through grooves (16) penetrating through the inner wall of the fixing ring along the circumferential direction of the peripheral wall, the connecting assembly (9) comprises a driving block (91) sliding in the through grooves (16), an inserting plate (92) arranged in the driving block (91) and positioned in the inner ring of the fixing ring (4) and having one end in an L shape, a positioning plate (93) hinged to the other end of the driving block (91) and a screw (94), one end of the sealing ring (6) positioned in the fixing ring (4) is uniformly provided with a plurality of fixing holes (17) for the vertical ends of the inserting plate (92) to pass through along the circumferential direction of the sealing ring, the inner ring wall of the fixing ring (4) is uniformly provided with a plurality of fixing grooves (18) corresponding to the fixing holes (17) along the circumferential direction of the sealing ring, the vertical ends of the inserting plate (92) sequentially pass, the outer wall of the fixing ring (4) is provided with a connecting hole (20) corresponding to the through hole (19), and the screw (94) is inserted into the through hole (19) and the connecting hole (20) from outside to inside in sequence.

5. The spiral duct connection structure of claim 4, wherein: the cell wall that leads to groove (16) is equipped with rather than axial syntropy spout (21), the diapire of drive block (91) is equipped with slider (22) that slides at the spacing inslot, the lateral wall that slider (22) deviate from picture peg (92) is equipped with spring (23), the one end that slider (22) were kept away from in spring (23) is fixed on the cell wall of spout (21).

6. The spiral duct connection structure of claim 1, wherein: magnetic seal spare (10) spare is for setting up magnetic seal pad (101) on collar (3) and solid fixed ring (4) relative lateral wall respectively, the lateral wall that magnetic seal pad (101) and seal ring pad (7) contacted all is established to unsmooth complex wavy.

7. The spiral duct connection structure of claim 4, wherein: the outer wall of the inserting plate (92) is coated with a silica gel pad (24) to be contacted with the sealing ring (6).

8. The spiral duct connection structure of claim 4, wherein: the screw (94) is sleeved with a gasket (25) to be attached to the outer wall of the fixing ring (4).