A hot-melt butt connection mechanism for spiral corrugated pipe

Abstract

The present invention relates to a hot-melt butt connection mechanism for a spiral corrugated pipe, comprising a base, and also comprising: two rotating drums, on which a centering clamping assembly is arranged; a butt connection assembly arranged on the base, on which the two rotating drums are arranged, the two rotating drums share the same central axis, and the spiral corrugated pipe is clamped by the centering clamping assembly and the central axes of the two sections of the spiral corrugated pipe to be connected are kept to coincide, the butt connection assembly drives the two rotating drums to approach each other and causes the ends of the two sections of the spiral corrugated pipe to be connected to be squeezed against each other; a torsion assembly arranged on the butt connection assembly and corresponding to the rotating drum, the butt connection assembly drives the two rotating drums to approach each other and drives the torsion assembly to drive the corresponding rotating drum to perform reciprocating torsion; an expansion assembly arranged on the butt connection assembly and corresponding to the rotating drum, the torsion mechanism drives the corresponding rotating drum to perform reciprocating torsion and drives the expansion assembly to increase the clamping force between the centering clamping assembly and the corresponding spiral corrugated pipe.

Description

Technical Field

[0001] The invention relates to the field of bellows connection, in particular to a hot-melt butt connection mechanism for spiral bellows. Background Art

[0002] When two sections of spiral corrugated pipes are hot-melt-jointed at the ends, one or both sections need to be squeezed close together at the same time, so that the polyethylene material at the ends is melted into one piece under the action of pressure, thereby completing the connection of the two sections of spiral corrugated pipes. However, in the above operation, the two sections of spiral corrugated pipes need to be concentrically arranged to avoid deflection, so as to ensure the quality of the joint. In view of this, we propose a hot-melt-joint connection mechanism for spiral corrugated pipes. Summary of the invention

[0003] The purpose of the present invention is to provide a hot-melt butt connection mechanism for a spiral corrugated pipe to solve the problems raised in the above background technology. To achieve the above purpose, the present invention provides the following technical solution: a hot-melt butt connection mechanism for a spiral corrugated pipe, comprising a base, and also comprising:

[0004] Two rotating drums for clamping two sections of spiral corrugated pipes to be connected, and a centering clamping assembly is provided on the rotating drums;

[0005] A docking assembly is arranged on the base, and the two rotating drums are arranged on the docking assembly. The two rotating drums share the same central axis, and the spiral bellows are clamped by a centering clamping assembly to keep the central axes of the two sections of the spiral bellows to be connected coincident, and the docking assembly drives the two rotating drums to approach each other and squeeze the ends of the two sections of the spiral bellows to be connected against each other;

[0006] A torsion assembly is arranged on the docking assembly and corresponds to the rotating drum, the docking assembly drives the two rotating drums to approach each other and drives the torsion assembly to drive the corresponding rotating drum to perform reciprocating torsion;

[0007] The expansion assembly is arranged on the docking assembly and corresponds to the rotating drum, and the torsion mechanism drives the corresponding rotating drum to perform reciprocating torsion while driving the expansion assembly to increase the clamping force between the centering clamping assembly and the corresponding spiral bellows.

[0008] Preferably, the centering clamping assembly includes a flange ring fixed at the end of the rotating drum, and the flange ring and the rotating drum share the same central axis. A plurality of arc-shaped clamping plates are arranged on the inner side of the flange ring, and the plurality of arc-shaped clamping plates are arranged at equal intervals along the circumferential direction of the flange ring. The plurality of arc-shaped clamping plates clamp the spiral bellows in an enclosing manner by approaching and embracing each other.

[0009] Preferably, a plurality of connecting rods are arranged on the inner side of the flange ring, and the plurality of connecting rods are arranged at equal intervals along the circumferential direction of the flange ring, the connecting rods are arranged correspondingly to the arc-shaped clamping plates one by one, one end of the connecting rod is hinged to the outer arc surface of the corresponding arc-shaped clamping plate, and the other end is hinged to the inner wall of the flange ring.

[0010] Preferably, an annular groove is provided on the end face of the flange ring, and the annular groove and the flange ring share the same central axis, a matching gear ring 2 is slidably connected in the annular groove, and a shift rod is fixed on the annular surface of the gear ring 2, a plurality of connecting rods 2 are provided on the inner side of the gear ring 2, and the plurality of connecting rods 2 are arranged at equal intervals along the circumferential direction of the gear ring 2, connecting rods 2 are arranged corresponding to connecting rods 1, one end of connecting rod 2 is hinged to the middle part of the corresponding connecting rod 1, and the other end is hinged to the inner wall of the gear ring 2.

[0011] Preferably, a slide cylinder is fixed on the outer wall of the flange ring, and a tooth block is slidably connected inside the slide cylinder. A through hole is opened on the side wall of the flange ring, and the through hole is connected to the slide cylinder. A screw rod penetrates and is threadedly connected to the end wall of the slide cylinder away from the through hole. The screw rod is connected to the tooth block for fixed-axis rotation. Pushed by the screw rod, the tooth block can pass through the through hole and engage with the teeth on the outer periphery of the second gear ring.

[0012] Preferably, the docking assembly includes two slides, and the two slides are symmetrically arranged, the two rotating cylinders are respectively arranged on the two slides, and two slide grooves corresponding to the slides are opened on the base, and the slide is slidably connected in the corresponding slide grooves, and a screw is rotatably connected to the base, and the screw passes through the two slide grooves, and the outer peripheral wall of the part of the screw located in the two slide grooves is provided with two sections of external threads with opposite rotation directions, the screw passes through the two slides, and the screw is threadedly connected to the two slides through the two sections of the external threads.

[0013] Preferably, a shaft frame 1 is fixed on the slide seat, and the shaft frame 1 is rotatably connected to the corresponding rotating drum via a fixed axis.

[0014] Preferably, the torsion assembly includes an axis frame 2 fixed on the slide seat, a reciprocating screw is rotatably connected to the axis frame 2, the reciprocating screw and the direction of the slide slot 1 are arranged perpendicular to each other, one end of the reciprocating screw is coaxially fixedly connected to the gear, a rack 1 corresponding to the gear is fixed on the base, the direction of the rack 1 and the direction of the slide slot 1 are arranged parallel to each other, and the gear is meshingly connected to the corresponding rack 1.

[0015] Preferably, a second slide groove is provided on the upper surface of the slide seat, and the direction of the second slide groove is set parallel to the reciprocating screw, a slider is slidably connected in the second slide groove, a vertical frame is fixed on the slider, and a rack second is fixed on the upper end of the vertical frame, a gear ring one is sleeved and fixedly connected on the outer wall of the rotating drum, the rack second is meshingly connected with the gear ring one, and the reciprocating screw passes through and is adaptively slidably connected to the vertical frame.

[0016] Preferably, the expansion assembly includes a pump barrel, which is fixed on a slide seat by a bracket, a piston plate is slidably connected inside the pump barrel, and the piston plate is fixedly connected to one end of rack two, a one-way valve one, a pressure relief valve and a one-way valve two are fixed and connected to the end wall of the pump barrel, the one-way valve one is connected to one end of air pipe one, and the conduction direction of the one-way valve one points to air pipe one, and the conduction direction of the one-way valve two points to the inside of the pump barrel.

[0017] Preferably, the expansion assembly further comprises a groove formed on the inner arc surface of the arc-shaped clamping plate, and an airbag is embedded and fixed in the groove, and the airbag is connected to the corresponding airtube one through the airtube two.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] In the present invention, a centering clamping assembly is provided on the rotating drum, so that the central axes of the two sections of the spiral bellows to be connected are automatically overlapped while the two sections of the spiral bellows to be connected are clamped, thereby achieving centering while clamping, eliminating the need for multiple manual calibrations, saving time and effort, and facilitating the precise docking of the two sections of the spiral bellows, thereby improving the docking quality.

[0020] In the present invention, the docking component drives the two rotating drums to approach each other and squeezes the ends of the two sections of spiral corrugated pipes that need to be connected against each other, so that the polyethylene sections after the end is hot-melted are fused together under pressure, thereby realizing the hot-melt docking of the two sections of spiral corrugated pipes. The operation is simple and convenient, and the difficulty of operation and labor intensity are reduced, and the work efficiency and process quality are improved. The docking component drives the two rotating drums to approach each other and drives the torsion component to drive the corresponding rotating drum to perform reciprocating torsion, thereby further increasing the connection effect of the docking position and improving the connection quality.

[0021] In the present invention, the torsion mechanism drives the corresponding rotating drum to perform reciprocating torsion while driving the expansion assembly to increase the clamping force between the centering clamping assembly and the corresponding spiral bellows, thereby avoiding slippage and improving the safety and reliability of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the general assembly structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the structure of the centering clamping mechanism in the present invention;

[0024] Figure 3 for Figure 2 A is an enlarged schematic diagram of the cross-sectional structure;

[0025] Figure 4 It is a side view of the slide and drum structure of the present invention;

[0026] Figure 5It is a schematic diagram of the cross-sectional structure of the arc-shaped splint in the present invention.

[0027] In the figure: 1. base; 2. slide; 3. lead screw; 4. rack 1; 5. gear; 6. rack 2; 7. rotating cylinder; 8. gear ring 1; 9. shaft frame 1; 10. lever; 11. centering clamping assembly; 12. flange ring; 13. ring groove; 14. gear ring 2; 15. connecting rod 1; 16. arc clamping plate; 17. connecting rod 2; 18. slide cylinder; 19. screw; 20. stand; 21. slide groove 1; 22. slide groove 2; 23. slider; 24. bracket; 25. pump barrel; 26. piston plate; 27. one-way valve 1; 28. pressure relief valve; 29. ​​one-way valve 2; 30. air pipe 1; 31. air bag; 32. air pipe 2; 33. through hole; 34. tooth block; 35. shaft frame 2; 36. reciprocating screw. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figures 1 to 5 The present invention provides a technical solution: a hot-melt butt connection mechanism for a spiral corrugated pipe, comprising a base 1, and also comprising:

[0030] Two rotating drums 7 for clamping two sections of spiral corrugated pipes to be connected, and a centering clamping assembly 11 is provided on the rotating drum 7;

[0031] A docking assembly is arranged on the base 1, and the two rotating drums 7 are arranged on the docking assembly. The two rotating drums 7 share the same central axis, and the spiral bellows are clamped by a centering clamping assembly 11 to keep the central axes of the two sections of the spiral bellows to be connected coincident, and the docking assembly drives the two rotating drums 7 to approach each other and squeeze the ends of the two sections of the spiral bellows to be connected against each other;

[0032] A torsion assembly is arranged on the docking assembly and corresponds to the rotating drum 7. The docking assembly drives the two rotating drums 7 to approach each other and drives the torsion assembly to drive the corresponding rotating drum 7 to perform reciprocating torsion.

[0033] The expansion assembly is arranged on the docking assembly and corresponds to the rotating drum 7, and the torsion mechanism drives the corresponding rotating drum 7 to perform reciprocating torsion while driving the expansion assembly to increase the clamping force between the centering clamping assembly 11 and the corresponding spiral bellows.

[0034] In this embodiment, the centering clamping assembly 11 includes a flange ring 12 fixed to the end of the rotating drum 7, and the flange ring 12 and the rotating drum 7 share the same central axis. A plurality of arc-shaped clamping plates 16 are arranged on the inner side of the flange ring 12, and the plurality of arc-shaped clamping plates 16 are arranged at equal intervals along the circumferential direction of the flange ring 12. The plurality of arc-shaped clamping plates 16 clamp the spiral bellows in an encircling manner by approaching and embracing each other. A plurality of connecting rods 15 are arranged on the inner side of the flange ring 12, and the plurality of connecting rods 15 are arranged at equal intervals along the circumferential direction of the flange ring 12. The connecting rods 15 and the arc-shaped clamping plates 16 are arranged one by one, and one end of the connecting rod 15 It is hinged to the outer arc surface of the corresponding arc-shaped clamping plate 16, and the other end is hinged to the inner wall of the flange ring 12. The end surface of the flange ring 12 is provided with an annular groove 13, and the annular groove 13 and the flange ring 12 share the same central axis. A matching gear ring 14 is slidably connected in the annular groove 13, and a shift rod 10 is fixed on the annular surface of the gear ring 14. A plurality of connecting rods 17 are arranged on the inner side of the gear ring 14, and the plurality of connecting rods 17 are arranged at equal intervals along the circumferential direction of the gear ring 14. The connecting rod 17 and the connecting rod 1 15 are arranged one by one. One end of the connecting rod 17 is hinged to the middle part of the corresponding connecting rod 15, and the other end is hinged to the inner wall of the gear ring 14.

[0035] In this embodiment, a slide cylinder 18 is fixed on the outer wall of the flange ring 12, and a gear block 34 is slidably connected inside the slide cylinder 18. A through hole 33 is opened on the side wall of the flange ring 12, and the through hole 33 is connected to the slide cylinder 18. A screw 19 passes through and is threadedly connected to the end wall of the slide cylinder 18 away from the through hole 33. The screw 19 is connected to the gear block 34 for fixed-axis rotation. Under the push of the screw 19, the gear block 34 can pass through the through hole 33 and engage with the teeth on the outer periphery of the gear ring 2 14.

[0036] In this embodiment, the docking assembly includes two slides 2, and the two slides 2 are symmetrically arranged, the two rotating cylinders 7 are respectively arranged on the two slides 2, and the base 1 is provided with two slide grooves 21 corresponding to the slides 2, the slide 2 is slidably connected in the corresponding slide grooves 21, and a screw 3 is rotatably connected to the base 1, and the screw 3 passes through the two slide grooves 21. The outer peripheral wall of the part of the screw 3 located in the two slide grooves 21 is provided with two sections of external threads with opposite rotation directions, the screw 3 passes through the two slides 2, and the screw 3 is threadedly connected to the two slides 2 through the two sections of the external threads, and an axis frame 9 is fixed on the slide 2, and the axis frame 9 is rotatably connected to the corresponding rotating cylinder 7.

[0037] In this embodiment, the torsion assembly includes an axis frame 2 35 fixed on the slide 2, and a reciprocating screw 36 is rotatably connected to the axis frame 25. The reciprocating screw 36 and the slide groove 21 are arranged perpendicular to each other, and one end of the reciprocating screw 36 is coaxially fixedly connected to the gear 5. A rack 4 corresponding to the gear 5 is fixed on the base 1, and the direction of the rack 4 is arranged parallel to the direction of the slide groove 21. The gear 5 is meshed with the corresponding rack 4. A slide groove 22 is provided on the upper surface of the slide 2, and the direction of the slide groove 22 is arranged parallel to the reciprocating screw 36. A slider 23 is slidably connected in the slide groove 22, a stand 20 is fixed on the slider 23, and a rack 26 is fixed on the upper end of the stand 20. A gear ring 8 is sleeved and fixedly connected on the outer wall of the rotating drum 7, and the rack 26 is meshed with the gear ring 8. The reciprocating screw 36 penetrates and is slidably connected to the stand 20 in a matching manner.

[0038] In this embodiment, the tightening assembly includes a pump barrel 25, which is fixed on the slide 2 through a bracket 24. A piston plate 26 is slidably connected inside the pump barrel 25, and the piston plate 26 is fixedly connected to one end of a rack 26. A one-way valve 27, a pressure relief valve 28 and a one-way valve 29 are fixed and connected to the end wall of the pump barrel 25. The one-way valve 27 is connected to one end of an air pipe 30, and the conducting direction of the one-way valve 27 points to the air pipe 30. The conducting direction of the one-way valve 29 points to the inside of the pump barrel 25. The tightening assembly also includes a groove opened on the inner arc surface of the arc-shaped clamping plate 16, and an air bag 31 is embedded and fixed in the groove. The air bag 31 is connected to the corresponding air pipe 30 through the air pipe 2 32.

[0039] Working principle and advantages of the present invention: When the hot-melt butt connection mechanism of the spiral corrugated pipe is used, the working process is as follows:

[0040] like Figure 1 , Figure 2 and Figure 3 As shown, the two sections of spiral bellows to be connected are placed in the two rotating drums 7 respectively, and the screw 19 is rotated to drive the gear block 34 away from the second gear ring 14 through the thread transmission to release the lock of the second gear ring 14, and then the lever 10 drives the second gear ring 14 to move in the Figure 2 The connecting rod 15 is rotated clockwise in the middle, so that the gear ring 2 14 synchronously pushes the corresponding connecting rod 15 to rotate through each connecting rod 2 17, so that the connecting rod 15 drives the corresponding arc clamping plate 16 to approach the spiral bellows, and each arc clamping plate 16 surrounds and clamps the spiral bellows so that the central axis of the spiral bellows coincides with the central axis of the rotating drum 7, thereby achieving centering while clamping, without the need for manual calibration multiple times, saving time and effort, and facilitating the precise docking of the two sections of the spiral bellows, thereby improving the docking quality.

[0041] After the arc clamping plate 16 clamps the spiral bellows, the screw 19 is rotated in the opposite direction, so that the screw 19 drives the tooth block 34 to engage the gear ring 2 14 through thread transmission, thereby locking the gear ring 2 14 to prevent the arc clamping plate 16 from loosening during the docking process, thereby ensuring the clamping stability of the spiral bellows.

[0042] After the above-mentioned clamping of the spiral corrugated pipe, the polyethylene sections of the end walls of the two sections of the spiral corrugated pipe are heated, and the screw 3 is rotated so that the screw 3 drives the two slides 2 to approach each other under the guidance of the slide groove 21 through the threaded transmission, so that the slide 2 drives the two sections of the spiral corrugated pipe to approach each other through the shaft frame 9 and the rotating drum 7, so that the polyethylene sections after the end parts are hot-melted are fused into one under pressure, thereby realizing the hot-melt docking of the two sections of the spiral corrugated pipes. The operation is simple and convenient, which reduces the difficulty of operation and labor intensity, and improves work efficiency and process quality.

[0043] like Figure 1 and Figure 3 As shown, in the above-mentioned docking process, when the two slides 2 approach each other, the gear 5 drives the reciprocating screw 36 to rotate under the action of the corresponding rack 1 4, so that the reciprocating screw 36 drives the rack 2 6 and the slider 23 to move reciprocatingly through the stand 20, and then the rack 2 6 drives the corresponding rotating drum 7 to rotate reciprocatingly through the gear ring 1 8, and the two rotating drums 7 rotate in opposite directions, so that the docking ends of the two sections of spiral bellows are compressed and twisted reciprocatingly at the same time, thereby further increasing the connection effect of the docking position and improving the connection quality.

[0044] As described above, while the rack 26 moves back and forth, it drives the piston plate 26 to slide back and forth in the pump barrel 25. Since the conduction direction of the one-way valve 27 points to the air pipe 1 30, and the conduction direction of the one-way valve 29 points to the inside of the pump barrel 25, the pump barrel 25 transports external air to the corresponding air bags 31 through the air pipe 1 30 and each air pipe 2 32, so that the air bags 31 inflate and tighten the arc splint 16 and the spiral bellows, so as to increase the clamping force of the arc splint 16 on the spiral bellows while the drum 7 rotates back and forth, avoid slipping, and thus improve the safety and reliability of the operation. The function of the pressure relief valve 28 is to prevent excessive pressure in the pump barrel 25 and to relieve pressure.

[0045] After the hot melt butt welding is completed, the screw 19 is rotated to drive the tooth block 34 away from the second gear ring 14 through the thread transmission, the lock of the second gear ring 14 is released, and then the second gear ring 14 is driven by the lever 10. Figure 2The connecting rod 1 15 is rotated counterclockwise in the middle, so that the gear ring 2 14 pulls the corresponding connecting rod 1 15 to rotate in the opposite direction through each connecting rod 2 17, so that the connecting rod 1 15 drives the corresponding arc clamping plate 16 to move away from the spiral bellows, and the spiral bellows after docking is taken out from the rotating drum 7, and then the screw 3 is rotated in the opposite direction to make the two slides 2 move away from each other and reset, so as to carry out the next docking process. The operation is simple and convenient, saving time and effort.

[0046] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0047] In the description of the present invention, unless otherwise specified, "multiple" means two or more than two; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A hot-melt butt connection mechanism for a spiral corrugated pipe, comprising a base (1), characterized in that: Also includes: Two rotating drums (7) for clamping two sections of spiral corrugated pipes to be connected, wherein a centering clamping assembly (11) is provided on the rotating drums (7); A docking assembly is arranged on a base (1), and two rotating drums (7) are arranged on the docking assembly. The two rotating drums (7) are arranged to share the same central axis, and the spiral corrugated pipe is clamped by a centering clamping assembly (11) to keep the central axes of the two sections of the spiral corrugated pipe to be connected coincident. The docking assembly drives the two rotating drums (7) to approach each other and causes the ends of the two sections of the spiral corrugated pipe to be connected to be pressed against each other. a torsion assembly disposed on the docking assembly and corresponding to the rotating drum (7), the docking assembly driving the two rotating drums (7) to approach each other while driving the torsion assembly to drive the corresponding rotating drum (7) to perform reciprocating torsion; An expansion assembly is arranged on the docking assembly and corresponds to the rotating drum (7), and the torsion mechanism drives the corresponding rotating drum (7) to perform reciprocating torsion while driving the expansion assembly to increase the clamping force between the centering clamping assembly (11) and the corresponding spiral bellows; The centering clamping assembly (11) comprises a flange ring (12) fixed to the end of the rotating drum (7), and the flange ring (12) and the rotating drum (7) are arranged on the same central axis, and a plurality of arc-shaped clamping plates (16) are arranged on the inner side of the flange ring (12); The docking assembly comprises two slide seats (2), two rotating drums (7) are respectively arranged on the two slide seats (2), and the base (1) is provided with two slide grooves (21) corresponding to the slide seats (2); The torsion assembly comprises a shaft frame (35) fixed on the slide seat (2), a reciprocating screw (36) is rotatably connected to the shaft frame (35), the reciprocating screw (36) and the direction of the slide groove (21) are arranged perpendicular to each other, a slide groove (22) is provided on the upper surface of the slide seat (2), and the direction of the slide groove (22) is arranged parallel to the reciprocating screw (36), a slider (23) is slidably connected in the slide groove (22), a stand (20) is fixed on the slider (23), and a rack (6) is fixed on the upper end of the stand (20), a gear ring (8) is sleeved on the outer wall of the rotating drum (7) and fixedly connected, the rack (6) is meshingly connected with the gear ring (8), and the reciprocating screw (36) passes through and is slidably connected to the stand (20); The expansion assembly comprises a pump barrel (25) and a groove formed on the inner arc surface of the arc clamping plate (16); a piston plate (26) is slidably connected inside the pump barrel (25), and the piston plate (26) is fixedly connected to one end of the rack (6); a one-way valve (27) is fixed on the end wall of the pump barrel (25) and connected to the one-way valve (27); the one-way valve (27) is connected to one end of the air pipe (30), and the conducting direction of the one-way valve (27) points to the air pipe (30); an air bag (31) is embedded and fixed in the groove, and the air bag (31) is connected to the corresponding air pipe (30) through the air pipe (32).

2. The hot-melt butt connection mechanism of a spiral corrugated pipe according to claim 1, characterized in that: The plurality of arc-shaped clamping plates (16) are arranged at equal intervals along the circumferential direction of the flange ring (12), and the plurality of arc-shaped clamping plates (16) clamp the spiral bellows in an enveloping manner by being close to and embracing each other.

3. The hot-melt butt connection mechanism of a spiral corrugated pipe according to claim 1, characterized in that: The two slide seats (2) are symmetrically arranged, and the slide seats (2) are slidably connected in the corresponding slide grooves (21). A lead screw (3) is rotatably connected to the base (1), and the lead screw (3) passes through the two slide grooves (21). The outer peripheral wall of the lead screw (3) located in the two slide grooves (21) is provided with two sections of external threads with opposite rotation directions. The lead screw (3) passes through the two slide seats (2), and the lead screw (3) is threadedly connected to the two slide seats (2) through the two sections of the external threads.

4. The hot-melt butt connection mechanism of a spiral corrugated pipe according to claim 1, characterized in that: One end of the reciprocating screw rod (36) is coaxially fixedly connected to the gear (5), and a rack (4) corresponding to the gear (5) is fixed on the base (1), the direction of the rack (4) and the direction of the slide groove (21) are arranged parallel to each other, and the gear (5) is meshingly connected with the corresponding rack (4).

5. The hot-melt butt connection mechanism of a spiral corrugated pipe according to claim 1, characterized in that: The pump barrel (25) is fixed to the slide seat (2) via a bracket (24), and a pressure relief valve (28) and a second one-way valve (29) are fixed and connected to the end wall of the pump barrel (25), wherein the conducting direction of the second one-way valve (29) points to the interior of the pump barrel (25).

6. The hot-melt butt connection mechanism of a spiral corrugated pipe according to claim 1, characterized in that: A plurality of connecting rods (15) are arranged on the inner side of the flange ring (12), and the plurality of connecting rods (15) are arranged at equal intervals along the circumferential direction of the flange ring (12). The connecting rods (15) are arranged in one-to-one correspondence with the arc-shaped clamping plates (16). One end of the connecting rod (15) is hinged to the outer arc surface of the corresponding arc-shaped clamping plate (16), and the other end is hinged to the inner side wall of the flange ring (12). The end surface of the flange ring (12) is provided with an annular groove (13), and the annular groove (13) and the flange ring (12) share the same central axis. The ring groove (13) is slidably connected with a matching gear ring 2 (14), and a lever (10) is fixed on the annular surface of the gear ring 2 (14). A plurality of connecting rods 2 (17) are arranged on the inner side of the gear ring 2 (14), and the plurality of connecting rods 2 (17) are arranged at equal intervals along the circumferential direction of the gear ring 2 (14). The connecting rods 2 (17) are arranged in a one-to-one correspondence with the connecting rods 1 (15). One end of the connecting rod 2 (17) is hinged to the middle part of the corresponding connecting rod 1 (15), and the other end is hinged to the inner side wall of the gear ring 2 (14).

7. The hot-melt butt connection mechanism of a spiral corrugated pipe according to claim 6, characterized in that: A slide cylinder (18) is fixed on the outer wall of the flange ring (12), and a tooth block (34) is slidably connected inside the slide cylinder (18). A through hole (33) is opened on the side wall of the flange ring (12), and the through hole (33) is connected to the slide cylinder (18). A screw rod (19) passes through and is threadedly connected to the end wall of the slide cylinder (18) away from the through hole (33). The screw rod (19) is rotatably connected to the tooth block (34) on a fixed axis. Under the push of the screw rod (19), the tooth block (34) can pass through the through hole (33) and engage with the teeth on the outer periphery of the second gear ring (14).

8. The hot-melt butt connection mechanism of a spiral corrugated pipe according to claim 1, characterized in that: A shaft frame 1 (9) is fixed on the slide seat (2), and the shaft frame 1 (9) is rotatably connected to a corresponding rotating drum (7) via a fixed axis.

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