Automatic butt joint device for corrugated pipes

Abstract

The invention discloses a corrugated pipe automatic butt joint device which comprises an adjusting platform, a butt joint flange is arranged on the adjusting platform, a driving mechanism is connected to the adjusting platform, and a locking mechanism and a guiding mechanism which are located on the periphery of the butt joint flange are further arranged on the adjusting platform. The invention aims to provide the automatic butt joint device for the corrugated pipe, which can realize rapid and automatic butt joint among the corrugated pipe, a supporting truss side water spraying pipeline and a launching platform side water spraying pipeline, so as to guarantee the success of a launching task.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of aerospace launch, in particular to a corrugated pipe automatic docking device. BACKGROUND

[0002] Large launch vehicle launch phase will produce high-temperature gas flow and jet noise, which will directly wash and ablate the launch device, and have a bad influence on the related sensitive instruments of the rocket and launch device. Among them, the launch platform is the most seriously affected system by the gas flow and noise. At present, the domestic large-flow water jet cooling and noise reduction system (hereinafter referred to as "water jet system") is used for water jet protection, that is, a large-flow water medium is sprayed to mix with the jet flow. In this way, on the one hand, the energy of the jet flow itself and the jet ablation intensity can be reduced, and on the other hand, the jet noise energy can be reduced and the jet noise source position can be changed, so as to comprehensively reduce the jet ablation and noise destructive influence, and improve the launch safety of the launch vehicle and the working life and performance of the launch platform and other facilities.

[0003] The domestic water jet system is located on both sides of the launch platform, and the water is introduced to the movable launch platform on both sides by the high-position water tower through the dry pipe. The water jet pipeline is fixed by the support truss. The water jet pipeline is installed in the launch platform, and the spray holes are opened near the flow guide hole and on the platform surface for water jet protection. At present, the corrugated pipe is manually moved to realize the connection of the support truss side water jet pipeline and the launch platform side water jet pipeline. The water flow of the water jet system increases sharply with the increase of the rocket thrust, which will increase the size and weight of the water jet pipeline and the corrugated pipe. The manual movement of the corrugated pipe is no longer feasible, and the previous launch task has also proved that this scheme is inefficient. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a corrugated pipe automatic docking device, which can realize the rapid automatic docking between the corrugated pipe, the support truss side water jet pipeline and the launch platform side water jet pipeline, so as to ensure the success of the launch task.

[0005] The corrugated pipe automatic docking device of the present application comprises an adjusting platform, the adjusting platform is provided with a docking flange, the adjusting platform is connected with a driving mechanism, and the adjusting platform is further provided with a locking mechanism and a guide mechanism located outside the periphery of the docking flange.

[0006] The corrugated pipe automatic docking device of the present application, wherein the adjusting platform comprises a support plate arranged in the vertical direction, the support plate is provided with a through hole, the docking flange is fixedly sleeved on the through hole, and the two ends of the docking flange are located on the opposite sides of the support plate respectively. The opposite two sides of the support plate are a first side and a second side respectively, the driving mechanism is connected to the first side of the support plate, the locking mechanism and the guide mechanism are arranged on the second side of the support plate, and the bottom end of the support plate is connected with a universal wheel mechanism.

[0007] The automatic butt joint device for corrugated pipes, wherein the butt joint flange comprises a cylinder, a first annular flange and a second annular flange, the cylinder is fixedly sleeved on the through hole of the support plate, the first annular flange and the second annular flange are fixedly sleeved on the two ends of the cylinder respectively, the first annular flange and the second annular flange are located on the opposite sides of the support plate respectively, the first annular flange is arranged close to the first side of the support plate, and the second annular flange is arranged close to the second side of the support plate.

[0008] The automatic butt joint device for corrugated pipes, wherein the driving mechanism comprises two or more telescopic cylinders and two or more floating mechanisms, the two or more telescopic cylinders and the two or more floating mechanisms are arranged one by one in a one-to-one correspondence, the two or more floating mechanisms are fixedly arranged on the first side of the support plate and are uniformly and spacedly arranged along the circumference of the butt joint flange, the two or more floating mechanisms are respectively hinged to one end of the corresponding telescopic cylinder, and the other end of the telescopic cylinder is hinged with a fixed seat.

[0009] The automatic butt joint device for corrugated pipes, wherein the floating mechanism comprises a first floating plate and a second floating plate arranged oppositely and spacedly, a sliding shaft is fixedly connected between the first floating plate and the second floating plate, a third floating plate is sleeved and slid on the sliding shaft, a first elastic member and a second elastic member are respectively arranged between the third floating plate and the two ends of the sliding shaft, the first elastic member is located between the third floating plate and the first floating plate, the second elastic member is located between the third floating plate and the second floating plate, a fourth floating plate is arranged on the side of the second floating plate away from the third floating plate, the third floating plate is fixedly connected with the fourth floating plate, the first floating plate is fixedly arranged on the first side of the support plate, and the fourth floating plate is hinged to one end of the telescopic cylinder.

[0010] The automatic butt joint device for corrugated pipes, wherein the locking mechanism comprises a screw rod rotatably arranged on the second side of the support plate, the screw rod is arranged along the radial direction of the butt joint flange, a nut is threadedly connected on the screw rod, a guide rail parallel to the screw rod is further fixedly arranged on the second side of the support plate, a locking block is slidably arranged on the guide rail, the locking block is fixedly connected with the nut, a clamping groove is arranged on the side of the locking block close to the butt joint flange, and the clamping groove is correspondingly arranged with the second annular flange.

[0011] The automatic butt joint device of the corrugated pipe, wherein the screw rod is arranged on the second side of the support plate through a bearing seat, a hand wheel is fixedly arranged on the end of the screw rod away from the butt flange, two guide rails are arranged on the opposite sides of the screw rod, first sliding blocks are slidably arranged on the two guide rails, the locking block is fixedly connected with the first sliding blocks on the two guide rails, a connecting plate is fixedly arranged on the nut, the connecting plate is fixedly connected with the locking block, an arc surface is arranged on the side of the locking block close to the butt flange, the center of the arc surface is located on the axis of the butt flange, and the clamping groove is arranged on the arc surface and arranged along the circumference of the arc surface.

[0012] The automatic butt joint device of the corrugated pipe, wherein the universal wheel mechanism comprises a vertically arranged barrel, the barrel mouth of the barrel is arranged upwards, a cover plate is fixedly connected with the barrel mouth, the cover plate is fixedly connected with the bottom end of the support plate, a second sliding block is slidably arranged in the barrel cavity of the barrel in the vertical direction, a third elastic element is arranged between the second sliding block and the cover plate, the second sliding block is fixedly connected with the upper end of the vertically arranged support rod, the lower end of the support rod extends to the outside of the barrel after penetrating through the barrel bottom, the lower end of the support rod is movably connected with the bearing plate, and the ball universal wheel is installed on the bearing plate.

[0013] The automatic butt joint device of the corrugated pipe, wherein the bearing plate is provided with a semispherical groove, the lower end of the support rod is fixedly provided with a semispherical protrusion matched with the semispherical groove, the semispherical protrusion is located in the semispherical groove, a clamping table in a cylindrical shape is sleeved on the support rod, the clamping table is fixedly arranged on the bearing plate, a gap is formed between the cylindrical cavity of the clamping table and the support rod, and an annular groove in communication with the semispherical groove is arranged at the lower end of the inner cylinder wall of the clamping table.

[0014] The automatic butt joint device of the corrugated pipe, wherein the guide mechanism comprises a conical guide shaft, the conical guide shaft is fixedly arranged on the second side of the support plate, the conical guide shaft is arranged in three, the three conical guide shafts are uniformly and spacedly arranged along the circumference of the butt flange, the locking mechanism is arranged in three, the three locking mechanisms are uniformly and spacedly arranged along the circumference of the butt flange, and the three locking mechanisms and the three conical guide shafts are staggered arranged along the circumference of the butt flange.

[0015] The difference between the automatic butt joint device for corrugated pipes and the prior art is that the automatic butt joint device for corrugated pipes is installed on a support truss and located between a support truss side water spraying pipeline and a launching platform side water spraying pipeline during use, specifically, a horizontal plate is arranged on the support truss, the adjusting platform is arranged on the horizontal plate, and the driving mechanism is fixed on the support truss, so that the driving mechanism can drive the adjusting platform to move on the horizontal plate. Then, the corrugated pipe is hoisted to the center of the butt joint device by a crane and located between the butt joint flange and the support truss side water spraying pipeline, then one end of the corrugated pipe is screwed with the support truss side water spraying pipeline, then the adjusting platform is driven by the driving mechanism to move close to the corrugated pipe until the butt joint flange is butt jointed with the other end of the corrugated pipe and is screwed and fixed. Then, the adjusting platform is driven by the driving mechanism to move close to the launching platform side water spraying pipeline (in this process, the corrugated pipe is stretched and lengthened), and moves forward under the guidance of the guide mechanism until the butt joint flange is correctly butt jointed with the launching platform side water spraying pipeline, at this time, the locking mechanism is started to lock the flanges on the butt joint flange and the launching platform side water spraying pipeline, and the butt joint work is completed. Therefore, the automatic butt joint device for corrugated pipes can realize the rapid automatic butt joint between the corrugated pipe, the support truss side water spraying pipeline and the launching platform side water spraying pipeline, so as to ensure the success of the launching task.

[0016] The application will be further described below in combination with the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a perspective view of the automatic butt joint device for corrugated pipes of the application;

[0018] Figure 2 It is a perspective view of the automatic butt joint device for corrugated pipes of the application after the locking mechanism and the guide mechanism are hidden;

[0019] Figure 3 It is a perspective view of the locking mechanism in the application Figure 1 ;

[0020] Figure 4 It is a perspective view of the locking mechanism in the application Figure 2 ;

[0021] Figure 5 It is a perspective view of the locking mechanism in the application Figure 3 ;

[0022] Figure 6 It is a perspective view of the floating mechanism in the application Figure 1 ;

[0023] Figure 7 It is a sectional view along line A-A in the application Figure 6

[0024] Figure 8 It is a perspective view of the floating mechanism in the application Figure 2 ​;

[0025] Figure 9 This is a perspective view of the tapered guide shaft in this invention;

[0026] Figure 10 This is a perspective view of the guide block in this invention;

[0027] Figure 11 The three-dimensional representation of the universal wheel mechanism in this invention Figure 1 ;

[0028] Figure 12 For along Figure 11 Sectional view of the middle BB line;

[0029] Figure 13 The three-dimensional representation of the universal wheel mechanism in this invention Figure 2 ;

[0030] Figure 14 This is a front view of the bellows automatic docking device of the present invention in use.

[0031] Figure 15 This is a top view of the bellows automatic docking device of the present invention in use.

[0032] Figure 16 This is a left view of the bellows automatic docking device of the present invention in use.

[0033] Figure 17 For along Figure 16 A cross-sectional view of the CC line;

[0034] Figure 18 This is a right view of the bellows automatic docking device of the present invention in use.

[0035] Figure 19 Three-dimensional view of the corrugated pipe automatic docking device of the present invention in use. Figure 1 ;

[0036] Figure 20 Three-dimensional view of the corrugated pipe automatic docking device of the present invention in use. Figure 2 ;

[0037] Figure 21 This is a three-dimensional disassembled view of the corrugated pipe automatic docking device of the present invention, the water spray pipe on the side of the supporting truss, and the water spray pipe on the side of the launch pad. Figure 1 ;

[0038] Figure 22 This is a three-dimensional disassembled view of the corrugated pipe automatic docking device of the present invention, the water spray pipe on the side of the supporting truss, and the water spray pipe on the side of the launch pad. Figure 2 ;

[0039] Figure 23This is a front view of the corrugated pipe connected to the water spray pipe on the support truss side and the water spray pipe on the launch pad side using the present invention.

[0040] Figure 24 This invention relates to a three-dimensional structure after connecting the corrugated pipe to the water spray pipes on the support truss side and the water spray pipes on the launch pad side. Figure 1 ;

[0041] Figure 25 This invention relates to a three-dimensional structure after connecting the corrugated pipe to the water spray pipes on the support truss side and the water spray pipes on the launch pad side. Figure 2 ;

[0042] Figure 26 For along Figure 25 A cross-sectional view of the DD line.

[0043] Figure reference numerals:

[0044] 01. Connecting flange; 02. Tapered guide shaft; 03. Support plate; 04. Locking mechanism; 05. Drive mechanism; 06. Connecting rod; 07. Bellows; 08. Support truss; 09. Horizontal plate; 10. Small load-bearing plate; 11. Caster wheel mechanism; 12. Fixed seat; 13. Telescopic cylinder; 14. Floating mechanism; 15. Second annular flange; 16. Cylinder; 17. Fixed plate; 18. Top plate; 19. Cover plate; 20. Barrel body; 21. Ball bearing caster; 22. Bearing plate; 23. Locking platform; 24. Support rod; 25. Locking block; 26. Screw; 27. Connecting plate; 28. Nut; 29. ​​Handwheel; 30. Bearing seat; 31. Guide rail; 32. First slider; 33. Arc-shaped surface; 34. Slot; 35. 36. Floating plate; 37. Third floating plate; 38. Second floating plate; 39. Fourth floating plate; 40. Fifth floating plate; 41. Sixth floating plate; 42. First elastic element; 43. Sliding shaft; 44. Second elastic element; 45. Base; 46. Guide block; 47. Guide groove; 48. Bushing; 49. Conical pad; 50. Third elastic element; 51. Second slider; 52. Hemispherical protrusion; 53. Annular groove; 54. Hemispherical groove; 55. Launch pad side water spray pipe; 56. Flange on the launch pad side water spray pipe; 57. First annular flange; 58. Flange on the support truss side water spray pipe; 59. Flange at both ends of the corrugated pipe; 60. First side; 61. Second side. Detailed Implementation

[0045] like Figure 1 As shown, and in combination Figures 2-26As shown, the automatic butt joint device for corrugated pipe of the present application comprises an adjusting platform, a butt flange 01 is arranged on the adjusting platform, a driving mechanism 05 is connected to the adjusting platform, and a locking mechanism 04 and a guiding mechanism are arranged on the adjusting platform and located at the periphery of the butt flange 01.

[0046] As shown in Figure 1 , 2 , 14-26, the automatic butt joint device for corrugated pipe of the present application, wherein the adjusting platform comprises a support plate 03 arranged in vertical direction, a through hole is arranged on the support plate 03, the butt flange 01 is fixedly sleeved on the through hole, the two ends of the butt flange 01 are respectively located at the opposite sides of the support plate 03, the opposite sides of the support plate 03 are respectively a first side 60 and a second side 61, the driving mechanism 05 is connected to the first side 60 of the support plate 03, the locking mechanism 04 and the guiding mechanism are arranged on the second side 61 of the support plate 03, and the universal wheel mechanism 11 is connected to the bottom end of the support plate 03.

[0047] The support plate 03 is arranged in vertical direction, and the opposite vertical sides thereof are the first side 60 and the second side 61. The driving mechanism 05 is used to drive the adjusting platform to move, that is, the driving mechanism 05 can push and pull the support plate 03, and since the bottom end of the support plate 03 is connected to the universal wheel mechanism 11, the support plate 03 can move through the universal wheel mechanism 11.

[0048] As shown in Figure 1 , 2 , 17, 21-26, the automatic butt joint device for corrugated pipe of the present application, wherein the butt flange 01 comprises a cylinder 16, a first annular flange 56 and a second annular flange 15, the cylinder 16 is fixedly sleeved on the through hole of the support plate 03, the first annular flange 56 and the second annular flange 15 are fixedly sleeved on the two ends of the cylinder 16, the first annular flange 56 and the second annular flange 15 are respectively located at the opposite sides of the support plate 03, the first annular flange 56 is arranged close to the first side 60 of the support plate 03, the first annular flange 56 and the driving mechanism 05 are both located on one side of the first side 60 of the support plate 03, and the second annular flange 15 is arranged close to the second side 61 of the support plate 03, the second annular flange 15, the locking mechanism 04 and the guiding mechanism are all located on one side of the second side 61 of the support plate 03.

[0049] The cylinder 16, the first annular flange 56 and the second annular flange 15 of the butt flange 01 are coaxially arranged, and the axis is arranged vertically to the support plate 03 along the horizontal direction. The first annular flange 56 is arranged on one side of the first side 60 of the support plate 03 and opposite to the first side 60, and the second annular flange 15 is arranged on one side of the second side 61 of the support plate 03 and opposite to the second side 61. Both ends of the bellows 07 are provided with flanges 59, and the flange 59 on one end of the bellows 07 is screwed with the flange 57 on the support truss 08 side water spraying pipeline 58, and the first annular flange 56 is provided with a circumferentially arranged flange through hole for screwing with the flange 59 on the other end of the bellows 07. The second annular flange 15 is not provided with a flange through hole, which is used to butt joint with the flange 55 on the launch platform side water spraying pipeline 54, and the two are locked by the locking mechanism 04. In this way, the launch platform side water spraying pipeline 54 is connected with the support truss 08 side water spraying pipeline 58 through the butt flange 01 and the bellows 07 in turn.

[0050] The support plate 03 is a regular polygon plate, and in this embodiment, the support plate 03 is a regular hexagonal plate. The support plate 03 is provided with a through hole at the center, so that the butt flange 01 is located at the center of the support plate 03 after being fixedly sleeved on the through hole.

[0051] As shown in Figure 1 , 2 , 14, 15, 17-26, the automatic butt joint device of the bellows of the application, wherein the driving mechanism 05 comprises two or more telescopic cylinders 13 and two or more floating mechanisms 14, the two or more telescopic cylinders 13 and the two or more floating mechanisms 14 are arranged one by one, the two or more floating mechanisms 14 are fixedly arranged on the first side 60 of the support plate 03 and uniformly spaced along the circumference of the butt flange 01, the two or more floating mechanisms 14 are respectively hinged to one end of the corresponding telescopic cylinder 13, and the other end of the two or more telescopic cylinders 13 is hinged with a fixed seat 12.

[0052] The telescopic cylinders 13 are selected as electric cylinders, and the number of the telescopic cylinders 13 and the floating mechanisms 14 is three. The piston rod of the telescopic cylinder 13 is hinged with the floating mechanism 14 through a cross hinge, and the cylinder body of the telescopic cylinder 13 is also hinged with the fixed seat 12 through a cross hinge. In use, the fixed seat 12 of each telescopic cylinder 13 is fixed on the support truss 08, and each telescopic cylinder 13 is arranged in the horizontal direction. Since the three floating mechanisms 14 are uniformly and spacedly arranged along the circumference of the butt flange 01, the three telescopic cylinders 13 are also uniformly and spacedly arranged along the circumference of the butt flange 01. When the support plate 03 is moved, the piston rods of the three telescopic cylinders 13 are simultaneously extended or retracted to push or pull the support plate 03 to move through the universal wheel mechanism 11. Since the three telescopic cylinders 13 and the three floating mechanisms 14 are uniformly and spacedly arranged along the circumference of the butt flange 01, and the butt flange 01 is located at the center of the support plate 03, the piston rods of the three telescopic cylinders 13 can more stably push or pull the support plate 03 to move when they are extended or retracted.

[0053] In combination Figures 6-8 As shown in the drawings, the automatic butt joint device for corrugated pipes of the present application, wherein the floating mechanism 14 comprises a first floating plate 35 and a second floating plate 37 which are opposite and spacedly arranged, a slide shaft 42 is fixedly connected between the first floating plate 35 and the second floating plate 37, a third floating plate 36 is slidably sleeved on the slide shaft 42, a first elastic member 41 and a second elastic member 43 are respectively arranged between the third floating plate 36 and the two ends of the slide shaft 42, the first elastic member 41 is located between the third floating plate 36 and the first floating plate 35, the second elastic member 43 is located between the third floating plate 36 and the second floating plate 37, a fourth floating plate 38 is arranged on the side of the second floating plate 37 away from the third floating plate 36, the third floating plate 36 is fixedly connected with the fourth floating plate 38, the first floating plate 35 is fixedly arranged on the first side surface 60 of the support plate 03, and the fourth floating plate 38 is hinged with one end of the telescopic cylinder 13 (i.e. the end of the piston rod of the telescopic cylinder 13).

[0054] The first floating plate 35 and the second floating plate 37 are fixedly connected with two fifth floating plates 39 which are opposite arranged, and the third floating plate 36 is clamped between the two fifth floating plates 39, that is, the third floating plate 36 is always in contact with the two fifth floating plates 39 when it slides along the slide shaft 42, so that the third floating plate 36 cannot rotate around the slide shaft 42 in the sliding process, but can only slide away from the first floating plate 35 while approaching the second floating plate 37, or slide away from the second floating plate 37 while approaching the first floating plate 35. The first floating plate 35, the second floating plate 37 and the two fifth floating plates 39 jointly form a four-side frame structure, and the third floating plate 36 is located inside the four-side frame structure.

[0055] The fixed connection mode of the third floating plate 36 and the fourth floating plate 38 is that the outer side of the second floating plate 37 is provided with two sixth floating plates 40, the second floating plate 37 is located between the two sixth floating plates 40, the third floating plate 36 is fixedly connected with the fourth floating plate 38 through the two sixth floating plates 40, and a four-side frame structure is formed, and the second floating plate 37 is located inside the four-side frame structure.

[0056] When the butt flange 01 is butted with the flange 59 on the bellows 07 by driving the support plate 03 to move horizontally towards the bellows 07 through the driving mechanism 05, since the two ends of the telescopic cylinder 13 are respectively hinged to the floating mechanism 14 and the fixed seat 12 through the cross hinge, the support plate 03 can automatically adjust its posture, that is, the butt flange 01 on the support plate 03 can automatically adjust its posture to complete the contact with the flange 59 on the bellows 07, at this time, the telescopic cylinder 13 stops telescoping, of course, if the gap or the inclination angle still exists between the two flanges at this time, the two flanges are screwed through the bolts, in this process, the floating mechanism 14 can compensate the mismatch between the two flanges through deformation to realize the complete lamination between the two flanges, so as to successfully realize the screwing of the two flanges.

[0057] Since the butt flange 01 and the flange 59 on the bellows 07 are mismatched, when the two flanges are screwed, a part of the butt flange 01 will move close to or away from the flange 59 on the bellows 07. When a part of the butt flange 01 moves close to the flange 59 on the bellows 07, since the piston cylinder has stopped telescoping, the four-side frame structure formed by the third floating plate 36, the fourth floating plate 38 and the two sixth floating plates 40 will not move, and the four-side frame structure formed by the first floating plate 35, the second floating plate 37 and the two fifth floating plates 39 will move close to the flange 59 on the bellows 07 along with the support plate 03, that is, the first floating plate 35 moves close to the third floating plate 36, and the second floating plate 37 moves away from the third floating plate 36 and close to the fourth floating plate 38, which can also be regarded as that the third floating plate 36 slides along the slide shaft 42 close to the first floating plate 35, at this time, the first elastic member 41 is compressed. When a part of the butt flange 01 contacts the flange 59 on the bellows 07, that is, the mismatch between the two flanges disappears, the first elastic member 41 is also compressed to a certain extent, that is, the floating mechanism 14 can compensate the mismatch between the two flanges through its own deformation. Similarly, when a part of the butt flange 01 moves away from the flange 59 on the bellows 07, the second elastic member 43 is compressed until the two flanges contact, at this time, the second elastic member 43 is compressed to a certain extent, so that the floating mechanism 14 can compensate the mismatch between the two flanges through its own deformation.

[0058] In the embodiment, the first elastic member 41 and the second elastic member 43 are both disc springs. The first elastic member 41 is sleeved on the slide shaft 42 between the first floating plate 35 and the third floating plate 36, one end of the first elastic member 41 abuts against the third floating plate 36, and the other end is fixed on the end of the slide shaft 42 close to the first floating plate 35. The second elastic member 43 is sleeved on the slide shaft 42 between the third floating plate 36 and the second floating plate 37, one end of the second elastic member 43 abuts against the third floating plate 36, and the other end abuts against the second floating plate 37.

[0059] Of course, the other end of the first elastic member 41 can also abut against the first floating plate 35, and the other end of the second elastic member 43 is fixed on the end of the slide shaft 42 close to the second floating plate 37. Since the first floating plate 35 and the second floating plate 37 are respectively located at the two ends of the slide shaft 42, regardless of whether the other end of the first elastic member 41 is fixed on the end of the slide shaft 42 close to the first floating plate 35 or abuts against the first floating plate 35, and regardless of whether the other end of the second elastic member 43 is fixed on the end of the slide shaft 42 close to the second floating plate 37 or abuts against the second floating plate 37, it can be considered that the first elastic member 41 and the second elastic member 43 are respectively arranged between the third floating plate 36 and the two ends of the slide shaft 42.

[0060] In the abutting process of the abutting flange 01 and the flange 59 on the corrugated pipe 07, the universal wheel mechanism 11 is needed to participate in, that is, the cooperation of the universal wheel mechanism 11 is needed to complete the abutting. The structure and function of the universal wheel mechanism 11 will be introduced below.

[0061] As shown in Figure 1 , 2 , 11-13, 14, 16-26, the universal wheel mechanism 11 comprises a vertically arranged barrel body 20, the barrel opening of the barrel body 20 is arranged upward, the barrel bottom is arranged downward, a cover plate 19 is fixedly connected on the barrel opening, the cover plate 19 is fixedly connected on the bottom end of the support plate 03, a second sliding block 50 is vertically slidably arranged in the barrel cavity of the barrel body 20, a third elastic member 49 is arranged between the second sliding block 50 and the cover plate 19, the second sliding block 50 is fixedly connected with the upper end of the vertically arranged support rod 24, the lower end of the support rod 24 extends to the outside of the barrel body 20 after penetrating through the barrel bottom of the barrel body 20, and the lower end of the support rod 24 is movably connected with a bearing plate 22, and a ball universal wheel 21 is installed on the bearing plate 22. The bearing plate 22 is arranged in the horizontal direction, and the ball universal wheel 21 is located below the bearing plate 22.

[0062] The specific way that the lower end of the support rod 24 is movably connected with the bearing plate 22 is that a hemispherical recess 53 is arranged on the upper side of the bearing plate 22, a hemispherical protrusion 51 matching the hemispherical recess 53 is fixedly arranged on the lower end of the support rod 24, the hemispherical protrusion 51 is located in the hemispherical recess 53, a clamping post 23 in the shape of a cylinder is sleeved on the support rod 24, that is, the support rod 24 is inserted into the cylinder cavity of the clamping post 23, the clamping post 23 is fixedly arranged on the upper side of the bearing plate 22, and a gap is formed between the cylinder cavity of the clamping post 23 and the support rod 24. An annular recess 52 in communication with the hemispherical recess 53 is arranged at the lower end of the inner cylinder wall of the clamping post 23.

[0063] When the universal wheel mechanism 11 is fixedly connected to the bottom end of the support plate 03, a top plate 18 arranged in the horizontal direction is fixedly connected to the upper end of the cover plate 19, and then two fixed plates 17 arranged in the vertical direction and opposite to each other are fixedly connected to the top plate 18, and then the two fixed plates 17 are clamped to the bottom end of the support plate 03, at this time, the bottom end of the support plate 03 is located between the two fixed plates 17, and then the two fixed plates 17 and the support plate 03 are fixedly connected through bolts. In this way, the universal wheel mechanism is fixedly connected to the bottom end of the support plate 03.

[0064] The third elastic member 49 is a spring, when the barrel 20 and the cover plate 19 move downward together relative to the support rod 24 and the bearing plate 22 (in this process, the second sliding block 50 slides upward relative to the barrel 20), the third elastic member 49 is compressed, and vice versa, when the barrel 20 and the cover plate 19 move upward together relative to the support rod 24 and the bearing plate 22 (in this process, the second sliding block 50 slides downward relative to the barrel 20), the third elastic member 49 is elongated. Since the cover plate 19 is fixedly connected to the support plate 03 through the top plate 18 and the fixed plate 17, the support plate 03 can also move upward and downward together with the barrel 20 relative to the support rod 24 and the bearing plate 22, so it can be seen that the support plate 03 can move upward and downward through the universal wheel mechanism 11.

[0065] The inner cylinder diameter of the clamping post 23 is greater than the diameter of the support rod 24, that is, a gap is ensured between the two. The inner cylinder diameter of the clamping post 23 is smaller than the diameter of the circular plane of the hemispherical protrusion 51, so that the hemispherical protrusion 51 cannot be pulled out of the clamping post 23, that is, the clamping post 23 can clamp the hemispherical protrusion 51 in the hemispherical recess 53 of the bearing plate 22. In order to facilitate the disassembly and assembly of the clamping post 23, the clamping post 23 is designed as a split structure.

[0066] Since the support rod 24 has a gap with the cylinder cavity of the clamping table 23, and the annular groove 52 at the lower end of the inner cylinder wall of the clamping table 23 is communicated with the semispherical groove 53, that is, the annular groove 52 and the semispherical groove 53 jointly form the movement space of the semispherical protrusion 51, so that the support rod 24 can be inclined and rotated at an angle relative to the bearing plate 22, in this process, the support rod 24 is inclined close to the inner cylinder wall of the clamping table 23, and the semispherical protrusion 51 can be rotated from the semispherical groove 53 into the annular groove 52. It can be said that the cylinder cavity of the clamping table 23 and the support rod 24 are arranged to have a gap, and the annular groove 52 is arranged on the clamping table 23, which are all to provide movement space for the support rod 24 to be able to be inclined and rotated relative to the bearing plate 22. Of course, the movable connection mode of the support rod 24 and the bearing plate 22 can also be called ball hinge connection, and the embodiment only provides a specific ball hinge connection mode. In summary, since the support rod 24 is connected with the support plate 03 through the barrel 20, the third elastic member 49, the cover plate 19, the top plate 18 and the fixed plate 17, the support plate 03 can also be inclined and rotated relative to the bearing plate 22 together with the support rod 24.

[0067] Therefore, the universal wheel mechanism 11 can not only support the support plate 03 and enable the support plate 03 to move horizontally, but also enable the support plate 03 to move up and down relative to the support rod 24 and the bearing plate 22, and enable the support plate 03 to be inclined and rotated relative to the bearing plate 22.

[0068] When the drive mechanism 05 drives the support plate 03 to move horizontally so that the butt flange 01 is butt-jointed with the flange 59 on the corrugated pipe 07, the support plate 03 can be inclined and rotated relative to the bearing plate 22 during the contact of the two flanges, so as to better adapt to the posture adjustment of itself and facilitate the butt joint of the butt flange 01 on it with the flange 59 on the corrugated pipe 07. After the butt flange 01 and the flange 59 on the corrugated pipe 07 are in contact, and then the two are screwed by bolts, there may still be a mismatch in the up-down position, that is, a mismatch in height, between the two. When the bolts are screwed into the flange through holes between the two, under the extrusion of the bolts, the support plate 03 can move up and down relative to the support rod 24 and the bearing plate 22 (that is, the butt flange 01 can move up and down together with the support plate 03), so as to make up for the mismatch in height between the two, so that the two can be successfully screwed.

[0069] As mentioned above, when the butt flange 01 is screwed with the flange 59 on the corrugated pipe 07, it specifically refers to that the first annular flange 56 of the butt flange 01 is screwed with the flange 59 on the one end of the corrugated pipe 07 which is not connected with the support truss 08 side water spraying pipeline 58.

[0070] In this embodiment, there are two universal wheel mechanisms 11, both of which are located at the bottom of the support plate 03 and are arranged at intervals.

[0071] like Figure 1 , 3 As shown in -5 and 14-26, the automatic corrugated pipe docking device of the present invention includes a locking mechanism 04 comprising a screw 26 rotatably mounted on the second side 61 of the support plate 03. The screw 26 is arranged radially along the docking flange 01. A nut 28 is threaded onto the screw 26. A guide rail 31 parallel to the screw 26 is also fixedly mounted on the second side 61 of the support plate 03. A locking block 25 is slidably mounted on the guide rail 31. The locking block 25 is fixedly connected to the nut 28. A groove 34 is provided on the side of the locking block 25 near the docking flange 01. The groove 34 is arranged correspondingly to the second annular flange 15.

[0072] The present invention relates to an automatic corrugated pipe docking device, wherein the screw 26 is rotatably mounted on the second side 61 of the support plate 03 via a bearing seat 30 (specifically: the bearing seat 30 is fixed on the second side 61 of the support plate 03, and the screw 26 is rotatably mounted on the bearing seat 30). A handwheel 29 is fixedly provided at the end of the screw 26 away from the docking flange 01. Two guide rails 31 are provided, located on opposite sides of the screw 26. A first slider 32 is slidably provided on each of the two guide rails 31. A locking block 25 is fixedly connected to the first slider 32 on the two guide rails 31. A connecting plate 27 is fixedly sleeved on the nut 28. The connecting plate 27 is fixedly connected to the locking block 25. An arc-shaped surface 33 is provided on the side of the locking block 25 near the docking flange 01. The center of the arc-shaped surface 33 is located on the axis of the docking flange 01. A slot 34 is provided on the arc-shaped surface 33 and arranged circumferentially along the arc-shaped surface 33.

[0073] When the screw 26 is rotated via the handwheel 29, the nut 28 is fixedly connected to the locking block 25 via the connecting plate 27, and the locking block 25 is slidably mounted on the guide rail 31 via the first slider 32. Therefore, the nut 28 will not rotate with the screw 26, but can only move along the axial direction of the screw 26. Since the screw 26 is arranged radially along the mating flange 01, the nut 28 can move closer to or away from the mating flange 01. Because the locking block 25 is slidably mounted on the guide rail 31 parallel to the screw 26 via the first slider 32, and the locking block 25 is fixedly connected to the nut 28 via the connecting plate 27, the locking block 25 can slide closer to or away from the mating flange 01 along the guide rail 31 under the influence of the nut 28. In summary, rotating the screw 26 allows the locking block 25 to slide closer to or away from the mating flange 01.

[0074] like Figure 1 , 9The automatic butt joint device for corrugated pipes of the present application shown in 10, 14-17, 19, 21-26, wherein the guiding mechanism comprises three tapered guiding shafts 02, which are fixed on the second side surface 61 of the support plate 03, and the locking mechanism 04 also comprises three locking mechanisms 04, which are uniformly and evenly spaced along the circumference of the butt joint flange 01, and the three locking mechanisms 04 and the three tapered guiding shafts 02 are staggered along the circumference of the butt joint flange 01.

[0075] When fixing the tapered guiding shafts 02 on the second side surface 61 of the support plate 03, the tapered guiding shafts 02 are first fixed on a base 44, and then the base 44 is fixed on the support plate 03, that is, the tapered guiding shafts 02 are fixed on the support plate 03 through the base 44. When fixing the tapered guiding shafts 02 on the support plate 03, the tapered guiding shafts 02 are fixed perpendicular to the support plate 03, and since the axis of the butt joint flange 01 is also perpendicular to the support plate 03, the tapered guiding shafts 02 are parallel to the axis of the butt joint flange 01.

[0076] The guiding mechanism further comprises guiding blocks 45 used in cooperation with the tapered guiding shafts 02, and the number of the guiding blocks 45 is also three, which are fixed on the flange 55 on the launch platform side water spraying pipeline 54, and the three guiding blocks 45 are uniformly and evenly spaced along the circumference of the flange 55 on the launch platform side water spraying pipeline 54 and correspondingly arranged with the three tapered guiding shafts 02. Each guiding block 45 is provided with a guiding groove 46, and a bushing 47 is fixedly sleeved in the guiding groove 46. When the tapered guiding shaft 02 is inserted into the guiding groove 46 of the corresponding guiding block 45, the tapered guiding shaft 02 is inserted into the bushing 47, and at this time, the second annular flange 15 of the butt joint flange 01 and the flange 55 on the launch platform side water spraying pipeline 54 are butt jointed. The guiding groove 46 realizes the guiding effect by limiting the movement stroke of the tapered guiding shaft 02 in the groove space, so as to enable the butt joint flange 01 and the flange 55 on the launch platform side water spraying pipeline 54 to be smoothly butt jointed.

[0077] When the guide block 45 is fixed on the flange 55 of the water injection pipeline 54 on the launching platform side, since the edge of the flange 55 is tapered, i.e. the thickness of the edge of the flange 55 gradually thins out along the direction from the center of the flange 55 to the periphery, in order to make the axis of the guide groove 46 of the guide block 45 parallel to the axis of the flange 55, a tapered spacer 48 is arranged between the guide block 45 and the flange 55, and finally the guide block 45 and the tapered spacer 48 are fixed on the edge of the flange 55 by bolts, at this time, the thickness of the tapered spacer 48 gradually thickens along the direction from the center of the flange 55 to the periphery, i.e. the edge of the tapered spacer 48 and the flange 55 are complementary to each other, forming a flat plate structure, which can make the axis of the guide groove 46 of the guide block 45 parallel to the axis of the flange 55. In this way, the guiding accuracy of the guiding mechanism can be improved, i.e. after the tapered guide shaft 02 is inserted into the guide groove 46, the axes of the two are coaxially arranged, since the tapered guide shaft 02 is parallel to the axis of the butt flange 01, and the axis of the guide groove 46 is parallel to the axis of the flange 55 on the water injection pipeline 54 on the launching platform side, the coaxial butt joint of the butt flange 01 and the flange 55 on the water injection pipeline 54 on the launching platform side can be realized, i.e. the complete butt joint of the two can be realized.

[0078] After the corrugated pipe 07 is connected between the butt flange 01 and the water injection pipeline 58 on the support truss 08 side, when the butt flange 01 is butted with the flange 55 on the water injection pipeline 54 on the launching platform side by driving the support plate 03 to move horizontally towards the water injection pipeline 54 on the launching platform side by the driving mechanism 05, since the telescopic cylinder 13 and the floating mechanism 14 and the fixed seat 12 are respectively connected by cross hinges and the action of the universal wheel mechanism 11, the support plate 03 can adjust its posture so that the tapered guide shaft 02 on it is smoothly inserted into the guide groove 46, and then the telescopic cylinder 13 stops telescoping. In the process of inserting the tapered guide shaft 02 into the guide groove 46, the cross hinges and the universal wheel mechanism 11 play the same role as when the butt flange 01 and the flange 59 on the corrugated pipe 07 are butted, i.e. they can make the support plate 03 adjust its posture, so they will not be described here.

[0079] After the flange 01 is completely matched with the flange 55 on the water spraying pipeline 54 of the launching platform, the screw 26 of the locking mechanism 04 is rotated, the locking block 25 slides close to the flange 01, until the second annular flange 15 and the flange 55 on the water spraying pipeline 54 of the launching platform are clamped in the clamping groove 34, after the clamping grooves 34 of the three locking mechanisms 04 clamp the second annular flange 15 and the flange 55 on the water spraying pipeline 54 of the launching platform in the circumferential direction (at this time, the locking of the two flanges is realized), the flange 01 is matched with the flange 55 on the water spraying pipeline 54 of the launching platform. Of course, after the tapered guide shaft 02 is inserted into the guide groove 46, the flange 01 and the flange 55 on the water spraying pipeline 54 of the launching platform may not be completely matched, that is, there is a gap or an inclination between the two flanges, and then in the process of clamping the second annular flange 15 and the flange 55 on the water spraying pipeline 54 of the launching platform in the clamping groove 34 by the locking mechanism 04, the floating mechanism 14 can compensate for the mismatch between the two flanges by deforming, that is, the two flanges are completely matched, so that the locking of the two flanges is successfully realized. During the locking of the flange 01 and the flange 55 on the water spraying pipeline 54 of the launching platform, the floating mechanism 14 plays the same role as when the flange 01 and the flange 59 on the corrugated pipe 07 are matched, that is, the two flanges are completely matched by deforming, so it is not described here.

[0080] In order to realize the clamping of the clamping groove 34 to the second annular flange 15 and the flange 55 on the water spraying pipeline 54 of the launching platform, the edges of the second annular flange 15 and the flange 55 on the water spraying pipeline 54 of the launching platform are tapered, that is, the side edges of the two flanges away from each other are beveled (the tapered pad 48 described above is fixed on the bevel of the flange 55 on the water spraying pipeline 54 of the launching platform), so that the thickness of the two flanges gradually decreases from the center to the edge. When the two flanges are matched, the distance between the two bevels gradually increases from the edge to the center, and the clamping groove 34 is designed as a tapered groove matched with the two bevels, that is, the width of the clamping groove 34 gradually decreases from the groove opening to the groove bottom wall. Then, the clamping groove 34 can be easily clamped on the two bevels, thereby clamping the second annular flange 15 and the flange 55 on the water spraying pipeline 54 of the launching platform.

[0081] The center of the arc surface 33 on the locking block 25 is located on the axis of the flange 01, after the flange 01 is matched with the flange 55 on the water spraying pipeline 54 of the launching platform, since the two flanges are coaxially arranged, the center of the arc surface 33 is also located on the axis of the flange 55 on the water spraying pipeline 54 of the launching platform, so that when the locking block 25 is close to the flange 01 and the flange 55 on the water spraying pipeline 54 of the launching platform, the arc surface 33 can be arranged along the circumferential direction of the two flanges, and as the locking block 25 continues to approach the two flanges, the clamping groove 34 can finally clamp the two flanges in the circumferential direction.

[0082] As Figures 1-26As shown, the difference between the automatic docking device for corrugated pipe of the present application and the prior art is that the automatic docking device for corrugated pipe of the present application is installed on the support truss 08 and located between the support truss 08 side water spraying pipeline 58 and the launching platform side water spraying pipeline 54 when in use, specifically: a horizontal plate 09 is fixedly arranged on the support truss 08, the adjusting platform is arranged on the horizontal plate 09, and two small load-bearing plates 10 are further fixedly arranged on the horizontal plate 09, then two universal wheel mechanisms 11 are arranged on the two small load-bearing plates 10 respectively, and the universal wheel mechanisms 11 move on the small load-bearing plates 10 during the whole docking process. Then, the driving mechanism 05 is fixed on the support truss 08, that is, the fixed seat 12 hinged to one end of the cylinder body of the telescopic cylinder 13 is fixed on the support truss 08, so that the driving mechanism 05 can drive the adjusting platform to move on the small load-bearing plates 10 of the horizontal plate 09, that is, the telescopic cylinder 13 drives the support plate 03 to move through the universal wheel mechanism 11 by the extension and retraction of the piston rod. Then, the corrugated pipe 07 is hoisted to the center of the docking device by a crane, that is, the corrugated pipe 07 is hoisted between the three telescopic cylinders 13 and located between the docking flange 01 and the support truss 08 side water spraying pipeline 58, then one end of the corrugated pipe 07 is screwed with the flange 57 on the support truss 08 side water spraying pipeline 58, and then the driving mechanism 05 drives the adjusting platform to move close to the corrugated pipe 07, that is, the piston rod of the telescopic cylinder 13 is retracted to make the support plate 03 move close to the corrugated pipe 07, until the docking flange 01 is docked with the other end of the corrugated pipe 07, and the first annular flange 56 is screwed and fixed with the flange 59 on the other end of the corrugated pipe 07. Then, the driving mechanism 05 drives the adjusting platform to move close to the launching platform side water spraying pipeline 54 (in this process, the corrugated pipe 07 is stretched and lengthened), that is, the piston rod of the telescopic cylinder 13 is extended to make the support plate 03 move close to the launching platform side water spraying pipeline 54, and move forward under the guidance of the guide mechanism, until the conical guide shaft 02 is inserted into the guide groove 46 of the corresponding guide block 45, the docking flange 01 is correctly docked with the launching platform side water spraying pipeline 54, that is, the second annular flange 15 is completely attached to the flange 55 on the launching platform side water spraying pipeline 54, at this time, the locking mechanism 04 is started, the locking block 25 slides close to the docking flange 01, until the second annular flange 15 of the docking flange 01 and the flange 55 on the launching platform side water spraying pipeline 54 are locked, that is, the second annular flange 15 and the flange 55 on the launching platform side water spraying pipeline 54 are clamped in the clamping groove 34 of the locking block 25, at this time, the launching platform side water spraying pipeline 54 is connected with the support truss 08 side water spraying pipeline 58 through the docking flange 01 and the corrugated pipe 07 in sequence, that is, the docking is completed. It can be seen that the present application can realize the rapid automatic docking between the corrugated pipe 07, the support truss 08 side water spraying pipeline 58 and the launching platform side water spraying pipeline 54, so as to ensure the success of the launching task.

[0083] The corrugated pipe 07 can be stretched and contracted, as described above, when the support plate 03 is moved close to the launching platform side water spraying pipe 54, the distance between the support plate 03 and the support truss 08 side water spraying pipe 58 becomes larger, so the corrugated pipe 07 connected between the two is stretched and lengthened, after the butt flange 01 is connected with the flange 55 on the launching platform side water spraying pipe 54, the length of the corrugated pipe 07 no longer changes, at this time the flanges 59 at both ends of the corrugated pipe 07 are connected and fixed through the connecting rod 06, so as to fix the length of the corrugated pipe 07.

[0084] The beneficial effects of the present application are as follows:

[0085] (1) The installation efficiency of the corrugated pipe 07 is improved, the installation time is shortened, and the launch success is ensured.

[0086] (2) A larger specification of corrugated pipe 07 can be installed, allowing more water to be sprayed out, and improving the water spraying protection effect.

[0087] It should be noted that the terms "center", "upper", "lower", "front", "rear", "left", "right", "middle" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0088] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0089] The above-described embodiments are only to describe the preferred embodiments of the present application, and not to limit the scope of the present application, and various modifications and improvements of the technical solutions of the present application made by those skilled in the art without departing from the design spirit of the present application shall fall within the protection scope determined by the claims of the present application.

Claims

1. A bellows automatic docking device, characterized by: The adjusting platform is provided with a docking flange, a driving mechanism is connected to the adjusting platform, and a locking mechanism and a guiding mechanism are arranged on the periphery of the docking flange.

2. The bellows automatic docking device of claim 1, wherein: The adjusting platform comprises a support plate arranged vertically, the support plate is provided with a through hole, the docking flange is fixedly sleeved on the through hole, the two ends of the docking flange are located on the opposite sides of the support plate respectively, the opposite sides of the support plate are a first side and a second side respectively, the driving mechanism is connected to the first side of the support plate, the locking mechanism and the guiding mechanism are arranged on the second side of the support plate, and the bottom end of the support plate is connected with a universal wheel mechanism.

3. The bellows automatic docking device of claim 2, wherein: The docking flange comprises a cylinder, a first annular flange and a second annular flange, the cylinder is fixedly sleeved on the through hole of the support plate, the first annular flange and the second annular flange are fixedly sleeved on the two ends of the cylinder respectively, the first annular flange and the second annular flange are located on the opposite sides of the support plate respectively, the first annular flange is arranged close to the first side of the support plate, and the second annular flange is arranged close to the second side of the support plate.

4. The bell and spigot automatic butt joining device of claim 3, wherein: The driving mechanism comprises two or more telescopic cylinders and two or more floating mechanisms, the two or more telescopic cylinders and the two or more floating mechanisms are arranged one by one in correspondence, the two or more floating mechanisms are fixedly arranged on the first side of the support plate and are uniformly and spacedly arranged along the circumference of the docking flange, the two or more floating mechanisms are respectively hinged to one end of the corresponding telescopic cylinder, and the other end of the telescopic cylinder is hinged with a fixed seat.

5. The bell and spigot automatic butt joining device of claim 4, wherein: The floating mechanism comprises a first floating plate and a second floating plate arranged oppositely and spacedly, a sliding shaft is fixedly connected between the first floating plate and the second floating plate, a third floating plate is sleeved on the sliding shaft in sliding mode, a first elastic member and a second elastic member are arranged between the third floating plate and the two ends of the sliding shaft respectively, the first elastic member is located between the third floating plate and the first floating plate, the second elastic member is located between the third floating plate and the second floating plate, a fourth floating plate is arranged on the side of the second floating plate away from the third floating plate, the third floating plate is fixedly connected with the fourth floating plate, the first floating plate is fixedly arranged on the first side of the support plate, and the fourth floating plate is hinged to one end of the telescopic cylinder.

6. The bell and spigot automatic butt joining device of claim 5, wherein: The locking mechanism comprises a screw rod rotatably arranged on the second side of the support plate, the screw rod is arranged along the radial direction of the docking flange, a nut is threadedly connected to the screw rod, a guide rail parallel to the screw rod is fixedly arranged on the second side of the support plate, a locking block is slidably arranged on the guide rail, the locking block is fixedly connected with the nut, a clamping groove is arranged on the side of the locking block close to the docking flange, and the clamping groove is arranged in correspondence with the second annular flange.

7. The bell and spigot automatic butt joining device of claim 6, wherein: The screw is arranged on the second side of the support plate through a bearing seat, one end of the screw away from the butt flange is fixedly provided with a hand wheel, the guide rails are two, the two guide rails are respectively located on opposite sides of the screw, the first sliders are slidably arranged on the two guide rails, the locking blocks are fixedly connected with the first sliders on the two guide rails, the connecting plate is fixedly arranged on the nut, the connecting plate is fixedly connected with the locking block, the side of the locking block close to the butt flange is provided with an arc surface, the center of the arc surface is located on the axis of the butt flange, and the clamping groove is arranged on the arc surface and along the circumference of the arc surface.

8. The bell and spigot automatic butt joining device of claim 7, wherein: The universal wheel mechanism comprises a vertically arranged barrel, the barrel mouth of the barrel is arranged upwards, the cover plate is fixedly connected to the barrel mouth, the cover plate is fixedly connected to the bottom end of the support plate, the second slider is slidably arranged in the barrel cavity of the barrel in the vertical direction, the third elastic member is arranged between the second slider and the cover plate, the second slider is fixedly connected to the upper end of the vertically arranged support rod, the lower end of the support rod extends to the outside of the barrel after penetrating through the barrel bottom, the lower end of the support rod is movably connected to the bearing plate, and the ball universal wheel is mounted on the bearing plate.

9. The bell and spigot automatic butt joining device of claim 8, wherein: The bearing plate is provided with a semispherical groove, the lower end of the support rod is fixedly provided with a semispherical protrusion matched with the semispherical groove, the semispherical protrusion is located in the semispherical groove, the support rod is sleeved with a clamping table in a cylindrical shape, the clamping table is fixedly arranged on the bearing plate, and the inner cylinder wall of the clamping table is provided with an annular groove in communication with the semispherical groove.

10. The bell and spigot automatic butt joining device of claim 9, wherein: The guide mechanism comprises a conical guide shaft, the conical guide shaft is fixedly arranged on the second side of the support plate, the conical guide shaft is three, the three conical guide shafts are uniformly and spacedly arranged along the circumference of the butt flange, the locking mechanism is three, the three locking mechanisms are uniformly and spacedly arranged along the circumference of the butt flange, and the three locking mechanisms and the three conical guide shafts are staggered arranged along the circumference of the butt flange.

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