CN115199836A

CN115199836A - Large-scale tuber pipe with hem flange structure

Info

Publication number: CN115199836A
Application number: CN202210854932.7A
Authority: CN
Inventors: 钟书吉; 徐文忠; 倪伟; 周曦; 王海; 王仕平; 郑云德; 李冬; 王征; 潘柄辰; 段江河; 王鑫; 刘施娅
Original assignee: China Huashi Enterprises Co Ltd
Current assignee: China Huashi Enterprises Co Ltd
Priority date: 2022-07-19
Filing date: 2022-07-19
Publication date: 2022-10-18

Abstract

The invention relates to the technical field of air pipes and discloses a large-scale air pipe with a flanged flange structure, which comprises a first batten and a second batten, wherein the first batten and the second batten are both provided with two strips, a pipe body is formed by splicing the first batten and the second batten, the first batten is respectively positioned on the left side and the right side of the pipe body, the first batten and the second batten are spliced and then connected through bolts to form the pipe body, and the top end and the bottom end of the first batten and the second batten are respectively provided with a first flanged edge and a third flanged edge and a fourth flanged edge outwards, so that the top and the bottom of the pipe body are not required to be additionally welded to form a flange and connected with other equipment or another pipe body, the first flanged edge and the third flanged edge are provided with first flange holes, and the first flanged edge and the fourth flanged edge are provided with second flange holes, and the connection between the pipe body and the other equipment or between the pipe body and the other equipment is facilitated through the first flange holes and the second flange holes.

Description

Large-scale tuber pipe with hem flange structure

Technical Field

The invention relates to the technical field of air pipes, in particular to a large-scale air pipe with a flange structure.

Background

The tuber pipe is the pipe-line system that is used for air feed and distributes, and according to cross sectional shape, the tuber pipe can be divided into circular tuber pipe, the rectangle tuber pipe, multiple such as oblate tuber pipe, and wherein circular tuber pipe resistance is minimum but the height dimension is the biggest, and the preparation is complicated, so use the rectangle tuber pipe in the application as leading to, for example the tuber pipe that uses with the cooperation of industrial centrifuge chooses the rectangle tuber pipe for use mostly, and this rectangle tuber pipe generally sets up in air intake governing door department. General large-scale tuber pipe adopts four steel sheets to assemble the welding and forms, the tip of tuber pipe need be connected with equipment or other tuber pipes, consequently at the oral area welding ring flange of tuber pipe, because the tuber pipe size is great, the integration ring flange is difficult to process, often need adopt four rectangular boards to weld in proper order and constitute, then the whole welding is at the oral area of tuber pipe, consequently, the manufacturing degree of difficulty and the welding engineering volume of tuber pipe have been increaseed, and if the welding seam is more in large-scale tuber pipe, also influence the structural strength of tuber pipe, the quality of tuber pipe has been reduced, so, need a large-scale tuber pipe that has hem flange structure.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a large air pipe with a flange structure, which solves the problems in the background art.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: a large-scale air pipe with a flange structure comprises a first batten and a second batten, wherein the first batten and the second batten are respectively provided with two parts, a pipe body is formed by splicing the first batten and the second batten, the first battens are respectively positioned on the left side and the right side of the pipe body, the second battens are respectively positioned on the front surface and the rear surface of the pipe body, the top end of the first batten is outwards provided with a second flanging, the bottom end of the first batten is outwards provided with a first flanging, the top end of the second batten is outwards provided with a third flanging, the bottom end of the second batten is outwards provided with a fourth flanging, the edges of the first batten, the second batten, the first flanging, the second flanging, the third flanging and the fourth flanging are fixedly connected through bolts, and the front part and the rear part inside the first flanging are respectively provided with an up-down penetrating positioning hole, the lower part of the center of the left side and the right side of the inner part of the positioning hole is provided with a positioning groove, the lower part of the center of the front surface and the rear surface of the inner part of the positioning hole is provided with a second through groove, the lower surface of the inner part of the second through groove is communicated with the outside, the inner parts of the hem two and the hem three are provided with three first flange holes which are penetrated up and down, the inner part of the first flange hole is provided with a limiting component, the inner part of the first flange hole is provided with a hexagon nut through the limiting component, the inner parts of the hem one and the hem four are provided with three second flange holes which are penetrated up and down, the front part and the rear part of the inner part of the hem two are provided with a first inner groove, the inner part of the first inner groove is rotatably connected with a positioning rod, the top end of the positioning rod penetrates through the top end of the first hem, the lower part of the inner part of the positioning rod is positioned in the inner part of the first inner groove, the left side and right side penetrating inner part of the inner groove two are both slidably connected with a sliding plate, the spring I is fixedly connected between the two sliding plates, a clamping block is fixedly connected to one side, back to back, of each sliding plate, clamping grooves are formed in the left side, the right side, the front side and the rear side of the inside of the first inner groove, the side, away from the center of the inside of the second inner groove, of the clamping block is clamped inside the clamping grooves, a left inner groove third penetrating through the left side and the right side is formed in the outside of the inside of the positioning rod, positioning blocks are rotatably connected to the upper sides of the left side and the right side of the inside of the third inner groove through rotating rods, a front through groove I penetrating through the inside of the positioning blocks is formed in the inside of the positioning blocks, limiting grooves I are formed in the left side and the right side of the rear surface of the inside of the third inner groove, limiting rods are movably connected to the inside of the limiting grooves I, springs are fixedly connected between the outer surfaces of the limiting rods and the upper surfaces of the inside of the limiting grooves I, and the front ends of the limiting rods penetrate through the first through grooves and are rotatably connected with the through grooves.

Preferably, spacing subassembly is including seting up the spout of a flange hole inside wall, the spout is provided with threely, and is three the spout is in flange hole inside wall becomes evenly distributed, the inside sliding connection of spout has the slide bar, the slide bar is close to the one end fixedly connected with limiting plate of a flange hole inside center department, the limiting plate is kept away from one side of a flange hole inside center department with fixedly connected with spring three between the flange hole inside wall, just the spring three sets are established the slide bar surface is located inside the flange hole, the limiting plate is close to one side of a flange hole inside center department sets up through-going type spacing groove two from top to bottom, just hexagon nut's surface is pegged graft inside spacing groove two.

Preferably, one side of the limiting plate, which is close to the center of the inside of the flange hole, is fixedly connected with an anti-slip pad.

Preferably, a groove is formed in the front of one opposite side of each of the two battens.

Preferably, the inner center of the positioning hole corresponds to the inner center of the positioning rod.

Preferably, the inner center of the first flange hole corresponds to the inner center of the second flange hole.

Preferably, the front surface and the rear surface of the clamping block are both provided with arc-shaped extrusion sections, and the top and the bottom of the clamping block are both provided with flat clamping sections.

Preferably, the section of going out of arc form is all set to two surfaces around the constant head tank is inside, two surfaces all set to smooth positioning section about the constant head tank is inside.

Preferably, one side of the positioning block, which is far away from the center of the third inner part of the inner groove, is arranged to be arc-shaped, and the first limiting groove is arranged to be arc-shaped.

Preferably, the positioning block is matched with the through groove.

(III) advantageous effects

The invention provides a large-scale air pipe with a flange structure, which has the following beneficial effects:

(1) The pipe body is formed by connecting the first batten and the second batten through the bolts after splicing, the top end and the bottom end of the first batten and the second batten are respectively and outwards provided with the second flanging and the first flanging as well as the third flanging and the fourth flanging, so that the top and the bottom of the pipe body are not required to be connected with other equipment or another pipe body by welding the plate strip into a flange in addition, the first flanging is arranged on the second flanging and the third flanging, the second flanging is arranged on the first flanging and the fourth flanging, and the pipe body are connected conveniently through the first flanging and the second flanging, or the pipe body and other equipment are connected.

(2) The utility model discloses a locating piece, including locating lever, locating lever and locating hole, be convenient for through the correspondence of locating lever and locating hole between two bodys, and during the location directly peg graft the locating lever inside the locating hole can, then the locating piece is extruded through spacing of gag lever post and the inside swing joint of spacing groove and is rotated the shrink under the effect of dwang and the inside rotation of inside groove and be connected when the locating lever is pegged graft inside the inside groove, and the gag lever post can extrude spring two when the inside activity of spacing groove makes spring two have bounce, the bounce of spring two pops out the locating piece when the locating piece corresponds with the inside constant head tank of locating hole after two bodys are connected and are laminated immediately and peg graft inside the constant head tank, and the constant head tank can carry out spacingly to the locating piece, just so can make the locating lever peg graft and can advance the pre-fixing between two bodys after the locating hole is inside, thereby be convenient for the connection installation between two bodys, and accelerated the speed and the efficiency of installation to a certain extent.

(3) The utility model discloses a flange hole, including the limiting plate, the limiting plate is arranged on the limiting plate, then the limiting plate is extruded to the bounce of spring three, the inside spacing groove two of limiting plate is arranged in through arranging the bellied angle limit of hexagon bolt surface, then the extrusion limiting plate makes the limiting plate pass through the slide bar and extrudees spring three under the inside gliding spacing of spout, the resilience force of spring three extrudees the centre gripping to the limiting plate and the inside hexagon nut of spacing groove two immediately, just so can make place the hexagon nut in flange hole one inside place firmly, and by spacing, and hexagon nut can not take place to rotate when with bolt threaded connection, thereby be convenient for locking when connecting between two bodys, simultaneously when needs dismantle when changing only need with hexagon nut direct rebound take out can, and then make convenient to use.

Drawings

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

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of the structure at B in FIG. 1 according to the present invention;

FIG. 4 is a schematic view of a partially cut-away enlarged structure of an interior of an inner tank of the present invention;

FIG. 5 is a schematic diagram of a fixture block according to the present invention;

FIG. 6 is a schematic perspective view of an enlarged positioning groove structure according to the present invention;

FIG. 7 is a schematic top view of the present invention;

FIG. 8 is an enlarged view of the spacing assembly of the present invention;

FIG. 9 is a schematic bottom view of the present invention;

fig. 10 is a schematic perspective view of the present invention.

In the figure: 1. folding the edge I; 2. positioning holes; 3. a first lath; 4. a second batten; 5. folding edges II; 6. positioning a rod; 7. folding edges III; 8. positioning a groove; 801. a section is removed; 802. a positioning section; 9. a first inner groove; 10. a card slot; 11. a clamping block; 1101. an extrusion section; 1102. a clamping section; 12. a sliding plate; 13. an inner groove II; 14. a first spring; 15. an inner groove III; 16. rotating the rod; 17. a limiting rod; 18. positioning blocks; 19. a first limiting groove; 20. a second spring; 21. a first through groove; 22. a hexagonal nut; 23. a first flange hole; 24. a pipe body; 25. a limiting component; 2501. a slide bar; 2502. a limiting plate; 2503. a chute; 2504. a third spring; 2505. a non-slip mat; 2506. a second limiting groove; 26. a second through groove; 27. a groove; 28. folding edges; 29. and a second flange hole.

Detailed Description

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

As shown in fig. 1 to 10, the present invention provides a technical solution: a large-scale air duct with a flange structure comprises a first lath 3 and a second lath 4, wherein the first lath 3 and the second lath 4 are respectively provided with two parts, a pipe body 24 is formed by splicing the first lath 3 and the second lath 4, the first lath 3 is respectively positioned at the left side and the right side of the pipe body 24, the second lath 4 is respectively positioned at the front surface and the rear surface of the pipe body 24, the top end of the first lath 3 is outwards provided with a second folding edge 5, the bottom end of the first lath 3 is outwards provided with a first folding edge 1, the top end of the second lath 4 is outwards provided with a third folding edge 7, the bottom end of the second lath 4 is outwards provided with a fourth folding edge 28, the edges of the first lath 3, the second lath 4, the first folding edge 1, the second folding edge 5, the third folding edge 7 and the fourth folding edge 28 are fixedly connected through bolts, the front part and the rear part inside the first folding edge 1 are both provided with up-down penetrating positioning holes 2, and down positioning grooves 8 are respectively arranged at the centers of the left side and right side inside the positioning holes 2, a second through groove 26 is formed below the centers of the front surface and the rear surface inside the positioning hole 2, the lower surface inside the second through groove 26 is communicated with the outside, a first three vertically penetrating flange holes 23 are formed inside the second hem 5 and the third hem 7, a limiting component 25 is arranged inside the first flange hole 23, a hexagon nut 22 is arranged inside the first flange hole 23 through the limiting component 25, a second three vertically penetrating flange holes 29 are formed inside the first hem 1 and the fourth hem 28, a first inner groove 9 is formed in the front and the rear of the second hem 5, a positioning rod 6 is rotatably connected inside the first inner groove 9, the top end of the positioning rod 6 penetrates through the top end of the first hem 1, a second left and right penetrating inner groove 13 is formed inside the first inner groove 9 below the positioning rod 6, sliding plates 12 are slidably connected on the left and right sides inside the second inner groove 13, and a first spring 14 is fixedly connected between the two sliding plates 12, one side of each of the two sliding plates 12, which is opposite to the other side, is fixedly connected with a clamping block 11, the left side and the right side of the inner part I9, the front side and the rear side of the inner part I are respectively provided with a clamping groove 10, one side of each clamping block 11, which is away from the center of the inner part II 13, is clamped in the clamping groove 10, a left-right penetrating type inner groove III 15 is arranged on the outer part above the inner part 6, the upper parts of the left side and the right side of the inner part III 15 are respectively rotatably connected with a positioning block 18 through a rotating rod 16, a front-back penetrating type through groove I21 is arranged in the positioning block 18, a limiting groove I19 is arranged on the left side and the right side of the rear surface of the inner part III 15, a limiting rod 17 is movably connected in the limiting groove I19, a spring II 20 is fixedly connected between the outer surface of the limiting rod 17 and the upper surface of the inner part I19, the front end of the limiting rod 17 penetrates through the through groove I21 and is rotatably connected with the through groove I21, so that when the sliding plates are used, because the pipe body 24 is formed by splicing the first batten 3 and the second batten 4 and then connecting the first batten 3 and the second batten 4 through bolts, the top end and the bottom end of the first batten 3 and the second batten 4 are respectively provided with the second flanging 5, the first flanging 1, the third flanging 7 and the fourth flanging 28 outwards, the top and the bottom of the pipe body 24 do not need to be additionally welded with a flange formed by a plate strip to be connected with other equipment or another pipe body 24, the second flanging 5 and the third flanging 7 are provided with the first flange hole 23, the first flanging 1 and the fourth flanging 28 are provided with the second flange hole 29, so that the connection between the pipe body 24 and the pipe body 24 or the connection between the pipe body 24 and other equipment is facilitated through the first flange hole 23 and the second flange hole 29, meanwhile, when the connection between the pipe body 24 and the pipe body 24 is performed, the connection between the two pipe bodies 24 can be facilitated through the correspondence between the positioning rod 6 and the positioning hole 2, and the positioning rod 6 can be directly inserted and positioned inside the positioning hole 2, then when the positioning rod 6 is inserted, the positioning block 18 is extruded to rotate and contract in the inner groove under the limiting action of the movable connection between the limiting rod 17 and the limiting groove I19 under the limiting action of the rotary rod 16 and the inner groove III 15, and the limiting rod 17 can extrude the spring II 20 to enable the spring II 20 to have resilience when moving in the limiting groove I19, and then when the positioning block 18 is opposite to the positioning groove 8 in the positioning hole 2 after the two tubes 24 are connected and attached, the positioning block 18 is ejected and inserted in the positioning groove 8 by the resilience of the spring II 20, and the positioning groove 8 can limit the positioning block 18, so that the positioning rod 6 can be inserted in the positioning hole 2 and then can be pre-fixed between the two tubes 24, thereby facilitating the connection and installation between the two tubes 24 and accelerating the installation rate and efficiency to a certain extent, finally, the two pipe bodies 24 can be connected and fixed by screwing the bolt through the second flange hole 29 and the hexagon nut 22 limited by the limiting component 25 in the first flange hole 23, when the disassembly is needed, the bolt is firstly screwed off, then the part of the locating rod 6 falling outside the locating hole 2 is rotated to rotate the locating rod 6, the rotation of the locating rod 6 drives the fixture block 11 in the first inner groove 9 to rotate and be extruded by the clamping groove 10, then the fixture block 11 is contracted in the second inner groove 13 by extruding the sliding plate 12 and the first spring 14, when the fixture block 11 corresponds to the other clamping groove 10, the resilience of the first spring 14 is extruded to clamp the fixture block 11 in the clamping groove 10 again, so that the position of the locating rod 6 is fixed, when the locating rod 6 rotates, the locating block 18 is also driven to rotate and be contracted in the third inner groove 15, and when the locating block 18 corresponds to the second through groove 26, the resilience of the second spring 20 springs the locating block 18 into the second through groove 26, because it communicates with each other with the outside to lead to groove two 26 insides, so directly stimulate a body 24 and can make and separate between two bodys 24, wait to separate after rotate the locating lever 6 once more make the locating lever 6 resume the normal position wait for next use can, and the joint through fixture block 11 and draw-in groove 10 makes the removal of locating lever 6 in vertical side spacing, so can not influence the locating lever 6 and peg graft in advance fixed behind locating hole 2 inside, and need not rotate locating lever 6 when carrying out the preliminary fixing.

Further, the limiting component 25 comprises sliding grooves 2503 arranged on the inner side wall of the first flange hole 23, the number of the sliding grooves 2503 is three, the three sliding grooves 2503 are uniformly distributed on the inner side wall of the first flange hole 23, a sliding rod 2501 is connected inside the sliding groove 2503 in a sliding manner, one end, close to the inner center of the first flange hole 23, of the sliding rod 2501 is fixedly connected with a limiting plate 2502, a third spring 2504 is fixedly connected between one side, away from the inner center of the first flange hole 23, of the limiting plate 2502 and the inner side wall of the first flange hole 23, the third spring 2504 is sleeved on the outer surface of the sliding rod 2501 and is located inside the first flange hole 23, one side, close to the inner center of the first flange hole 23, of the limiting plate 2502 is provided with a second limiting groove 2506 which penetrates through from top to bottom, and the outer surface of the hexagon nut 22 is inserted into the second limiting groove 2506, therefore, when the limiting component 25 is used for limiting the hexagon nut 22 placed inside the first flange hole 23, the raised corner edge of the outer surface of the hexagon bolt is firstly placed in the second limiting groove 2506 inside the limiting plate 2502, then the limiting plate 2502 is extruded to enable the limiting plate 2502 to extrude the third spring 2504 under the limiting position of the sliding rod 2501 inside the sliding groove 2503, the bounce of the third spring 2504 extrudes and clamps the limiting plate 2502 and the hexagon nut 22 inside the second limiting groove 2506, so that the hexagon nut 22 placed inside the first flange hole 23 can be stably placed and limited, the hexagon nut 22 cannot rotate when being in threaded connection with the bolt, locking between the two pipe bodies 24 is facilitated, meanwhile, when the disassembly and replacement are needed, only the hexagon nut 22 needs to be directly moved upwards to be taken out, and the use is convenient.

Further, one side fixedly connected with slipmat 2505 of limiting plate 2502 near the inside center department of flange hole 23, so increased the frictional force between limiting plate 2502 and the hex nut 22, and made limiting plate 2502 better to hex nut 22's spacing effect.

Furthermore, a groove 27 is formed in the front of the opposite side of the first batten 3, so that the tube 24 can be held conveniently through the groove 27.

Furthermore, the inner center of the positioning hole 2 corresponds to the inner center of the positioning rod 6, so that the two tube bodies 24 can be conveniently positioned.

Further, the inner center of the first flange hole 23 corresponds to the inner center of the second flange hole 29, so that when the two pipe bodies 24 are installed, bolts can penetrate through the second flange hole 29 and enter the inner portion of the first flange hole 23.

Furthermore, the front and rear surfaces of the clamping block 11 are both provided with arc-shaped extrusion sections 1101, and the top and bottom of the clamping block 11 are both provided with flat clamping sections 1102, so that the clamping block 11 can conveniently enter and exit from the inside of the clamping groove 10 after being extruded, and the top and bottom can be clamped by a limiting clamp when the clamping block 11 is located inside the clamping groove 10.

Further, the section 801 of going out of arc form is all set to on two surfaces around the constant head tank 8 is inside, and smooth positioning section 802 is all set to on two surfaces about the constant head tank 8 is inside, so the inside back and forth two surfaces of constant head tank 8 are convenient for go out from constant head tank 8 after locating piece 18 is extruded, and two surfaces also can fix a position spacing to locating piece 18 about the constant head tank 8 is inside.

Furthermore, one side, away from the center of the inner groove III 15, of the positioning block 18 is arranged to be arc-shaped, and the first limiting groove 19 is arranged to be arc-shaped, so that the positioning block 18 is convenient to extrude, and the track of the limiting rod 17 in the arc-shaped first limiting groove 19 is arc-shaped when moving, so that the limiting rod can be matched with the positioning block 18 to rotate and limit the rotation of the positioning block 18.

Furthermore, the positioning block 18 is matched with the second through groove 26, so that the positioning block 18 can be inserted into the second through groove 26.

In conclusion, the working process of the invention is as follows: when in use, the pipe body 24 is formed by splicing the first batten 3 and the second batten 4 and then connecting the two battens by bolts, the top end and the bottom end of the first batten 3 and the second batten 4 are respectively provided with the second flanging 5, the first flanging 1, the third flanging 7 and the fourth flanging 28 outwards, so that the top and the bottom of the pipe body 24 are not required to be connected with other equipment or another pipe body 24 by additionally welding a plate strip forming flange, the second flanging 5 and the third flanging 7 are provided with the first flange hole 23, the first flanging 1 and the fourth flanging 28 are provided with the second flange hole 29, the connection between the pipe body 24 and the pipe body 24 is facilitated by the first flange hole 23 and the second flange hole 29, or the connection between the pipe body 24 and other equipment is facilitated by the corresponding connection between the two pipe bodies 24 through the positioning rod 6 and the positioning hole 2 when the connection between the pipe body 24 and the pipe body 24 is carried out, the positioning rod 6 is directly inserted and connected in the positioning hole 2, the positioning rod 18 is extruded to be connected with the positioning hole 16 and the positioning rod 2 through the positioning rod 18 which is movably connected with the positioning groove 15 under the limiting groove 17, and the spring is conveniently extruded and the positioning rod 18 is mounted in the positioning groove 2, and the positioning groove 18 is mounted in the positioning groove 20 after the positioning groove 8, and the positioning rod is connected with the positioning groove 8, and the positioning rod is mounted in the positioning groove 18, and the positioning groove 2, and the positioning groove 18, and the positioning rod is mounted in the positioning groove 2, and the positioning rod is mounted in the positioning groove 20, and the positioning groove 18 is mounted in the positioning groove 20, finally, the two pipe bodies 24 can be connected and fixed stably by penetrating the bolts through the second flange holes 29 and the hexagon nuts 22 limited by the limiting assemblies 25 in the first flange holes 23, when disassembly is needed, the bolts are firstly unscrewed, then the positioning rods 6 are rotated by rotating the parts, falling to the outside of the positioning holes 2, of the positioning rods 6, the clamping blocks 11 in the first inner grooves 9 are driven to rotate and are extruded by the clamping grooves 10, the clamping blocks 11 are contracted in the second inner grooves 13 through the extrusion sliding plates 12 and the first springs 14, when the clamping blocks 11 correspond to the other clamping grooves 10, the first springs 14 are extruded to have the resilience, the clamping blocks 11 are clamped in the clamping grooves 10 again, so that the positions of the positioning rods 6 are fixed stably, when the positioning rods 6 rotate, the positioning blocks 18 are also driven to rotate and are contracted in the third inner grooves 15 through the extrusion sliding plates 12, when the positioning blocks 18 correspond to the second through grooves 26, the resilience of the second springs 20 springs can enable the positioning blocks 18 to be pushed into the second through grooves 26, the through the second through grooves 26, the inside and the outside are communicated, so that the positioning rods 24 can be separated by directly pulling of one pipe body 24 to rotate, when the positioning rods 6 are inserted, the positioning 6, the positioning rods can be used, and the positioning rods can be recovered to be used after the positioning 6, and the vertical positioning rods can be used, and the positioning rods can be recovered, and the vertical positioning rods can be fixed in the clamping grooves 6, and the clamping grooves 6 can be not be used, and can be used after the clamping grooves 2, and the vertical positioning rod can be recovered, and the vertical positioning rod can be fixed in the clamping grooves 6, and the clamping grooves 6 can be used.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a large-scale tuber pipe with hem flange structure, includes lath one (3) and lath two (4), its characterized in that: the first batten (3) and the second batten (4) are respectively provided with two strips, a pipe body (24) is formed by splicing the two first battens (3) and the two second battens (4), the two first battens (3) are respectively positioned at the left side and the right side of the pipe body (24), the two second battens (4) are respectively positioned at the front surface and the rear surface of the pipe body (24), the top end of the first batten (3) is outwards provided with a second folded edge (5), the bottom end of the first batten (3) is outwards provided with a first folded edge (1), the top end of the second batten (4) is outwards provided with a third folded edge (7), the bottom end of the second batten (4) is outwards provided with a fourth folded edge (28), edges of the first batten (3), the second batten (4), the first flanging (1), the second flanging (5), the third flanging (7) and the fourth flanging (28) are fixedly connected through bolts, the vertically-penetrating positioning holes (2) are formed in the front and the rear of the inner portion of the first flanging (1), the positioning grooves (8) are formed in the lower portions of the centers of the left side and the right side of the inner portion of the positioning holes (2), the second through grooves (26) are formed in the front and the rear of the inner portion of the positioning holes (2), the lower surfaces of the inner portions of the second through grooves (26) are communicated with the outer portion, and three vertically-penetrating flanges are formed in the inner portions of the second flanging (5) and the third flanging (7) A first hole (23), a limiting component (25) is arranged inside the first flange hole (23), a hexagon nut (22) is arranged inside the first flange hole (23) through the limiting component (25), three vertically penetrating flange holes II (29) are arranged inside the first flange (1) and the fourth flange (28), inner grooves I (9) are arranged in front of and behind the second flange (5), a positioning rod (6) is rotatably connected inside the inner groove I (9), the top end of the positioning rod (6) penetrates through the top end of the first flange (1), a horizontally penetrating inner groove II (13) is arranged inside the inner groove I (9) below the positioning rod (6), sliding plates (12) are slidably connected to the left side and the right side inside of the inner groove II (13), a spring I (14) is fixedly connected between the two sliding plates (12), clamping blocks (11) are fixedly connected to the opposite sides of the two sliding plates (12), clamping grooves (10) are arranged on the left side and the right side and the front side of the inner groove I (9), clamping blocks (11) are far away from the center of the inner groove II (13), and clamping blocks (15) are clamped above the inner groove II, the top of the inside left and right sides of third (15) of inside groove all is connected with locating piece (18) through dwang (16) rotation, through groove one (21) of run-through around locating piece (18) inside is seted up, spacing groove one (19) have all been seted up to the left and right sides of the inside rear surface of third (15) of inside groove, spacing groove one (19) inside swing joint has gag lever post (17), gag lever post (17) surface with fixedly connected with spring two (20) between the inside upper surface of gag lever post (19), the front end of gag lever post (17) runs through groove one (21), and with it rotates to be connected to lead to groove one (21).

2. A large air duct with a flanged flange structure according to claim 1, wherein: spacing subassembly (25) is including seting up spout (2503) of flange hole (23) inside wall, spout (2503) is provided with threely, and three spout (2503) are in flange hole (23) inside wall becomes evenly distributed, spout (2503) inside sliding connection has slide bar (2501), slide bar (2501) are close to one end fixedly connected with limiting plate (2502) of flange hole (23) inside center department, limiting plate (2502) are kept away from one side of flange hole (23) inside center department with fixedly connected with spring three (2504) between flange hole (23) the inside wall, just spring three (2504) cover is established slide bar (2501) outer surface is located inside flange hole (23), limiting plate (2502) are close to one side of flange hole (23) inside center department sets up the spacing groove two (2506) of upper and lower through-type, just the outer surface of hexagon nut (22) is pegged graft in spacing groove two (2506) are inside.

3. A large air duct with a hem flange structure according to claim 2, wherein: one side, close to the center of the interior of the first flange hole (23), of the limiting plate (2502) is fixedly connected with an anti-skid pad (2505).

4. A large air duct with a hem flange structure according to claim 1, wherein: a groove (27) is formed in the front of one side, opposite to the first battens (3).

5. A large air duct with a hem flange structure according to claim 1, wherein: the inner center of the positioning hole (2) corresponds to the inner center of the positioning rod (6).

6. A large air duct with a hem flange structure according to claim 1, wherein: the inner center of the first flange hole (23) corresponds to the inner center of the second flange hole (29).

7. A large air duct with a hem flange structure according to claim 1, wherein: the front surface and the rear surface of the clamping block (11) are both provided with arc-shaped extrusion sections (1101), and the top and the bottom of the clamping block (11) are both provided with flat clamping sections (1102).

8. A large air duct with a hem flange structure according to claim 1, wherein: the inside front and back two surfaces of constant head tank (8) all set up the section of going out (801) of arc form, level and smooth location section (802) are all set to two surfaces about constant head tank (8) is inside.

9. A large air duct with a hem flange structure according to claim 1, wherein: one side of the positioning block (18) far away from the center of the inner part of the third inner groove (15) is arc-shaped, and the first limiting groove (19) is arc-shaped.

10. A large air duct with a hem flange structure according to claim 1, wherein: the positioning block (18) is matched with the second through groove (26).