Steel pipe butt joint tool for waterworks construction

Abstract

The invention relates to the related technical field of steel pipe butt joint, in particular to a steel pipe butt joint tool for waterworks construction, which comprises a base, two position-adjustable movable seats are arranged at the top end of the base, rotatable clamping cylinders are arranged at the top ends of the movable seats through ferrules, and a frame plate is mounted on the side of the base. Two second telescopic pieces are symmetrically installed on the inner top face of the frame plate, movable vertical plates are installed at the opposite ends of the second telescopic pieces, a bolt installation disc and a nut installation disc are installed at the bottoms of the two movable vertical plates through rotating rods correspondingly, and a butt joint assembly is installed at the bottom, provided with the bolt installation disc, of the movable vertical plate; when two steel pipes are fixed through the clamping cylinder, butt joint of the inserted steel pipes and butt joint of the steel pipes connected through a thread structure can be achieved through movement and rotation of the clamping cylinder, and butt joint of the steel pipes connected through flange plates can be achieved through cooperation of a bolt mounting disc, a nut mounting disc and a butt joint assembly; and butt joint of various steel pipes is achieved, and the butt joint functionality is high.

Description

Technical Field

[0001] The invention relates to the technical field related to steel pipe butt jointing, in particular to a steel pipe butt jointing tool used in waterworks construction. Background Art

[0002] During the construction of a water plant, steel pipes need to be connected to each other to ensure that the tap water in the water plant can be transmitted to the residents' water pipes. Steel pipe connection tools are needed when connecting the steel pipes.

[0003] The patent with announcement number CN217890795U in the prior art discloses a steel pipe docking tool for waterworks construction, including a docking tool body, an adjustment box and a moving wheel, and the bottom of the docking tool body is fixedly connected to the top of the adjustment box. The tool starts the connection push component and the transmission plug component by setting a control box, so that the connection push component cooperates with the transmission plug component to insert and position the ground, thereby being able to drive the bottom of the outer side of the adjustment box to be positioned and fixed, solving the problem of the steel pipe docking tool in the prior art being not simple enough to operate and having low docking efficiency. However, in actual use, the docking methods between steel pipes are different. Common steel pipe docking methods include insertion docking, threaded structure docking and docking through flanges, etc., while the above-mentioned docking tool can only realize the insertion docking of the ends of the steel pipes, and the functionality of use is relatively low. For this reason, those skilled in the art have proposed a steel pipe docking tool for waterworks construction to solve the problems raised in the above background. Summary of the invention

[0004] The purpose of the present invention is to provide a steel pipe butt joint tool for waterworks construction to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A steel pipe butt joint tool for waterworks construction, comprising: A base, wherein a movable groove is provided at the middle part of the top of the base, first telescopic members are relatively installed on the inner walls at both ends of the movable groove, a frame plate is installed on one side of the base, two second telescopic members are symmetrically installed on the inner top surface of the frame plate, movable vertical plates are installed on the ends close to each other of the two second telescopic members, first driving members are installed on the sides of the bottoms of the movable vertical plates away from each other, rotating rods are rotatably connected on the sides of the bottoms of the movable vertical plates close to each other, one end of the rotating rod is connected to the output end of the first driving member at the corresponding position, and the second telescopic member is arranged directly above the movable groove; The movable seats are provided in two numbers and are respectively connected to the ends of the two first telescopic members close to each other, the bottom of the movable seat is slidably connected in the movable groove, the top of the movable seat is provided with a vertical rod and a rotating assembly, and the rotating assembly is connected to the clamping cylinder and is used to drive the clamping cylinder to rotate; A ferrule, detachably mounted on the top end of the vertical rod, for fixing the clamping tube; A clamping cylinder is rotatably connected to the inside of the ferrule and can rotate relative to the ferrule under the drive of the rotating assembly; A bolt mounting plate is mounted on the end of one of the rotating rods, and a plurality of bolt bodies are evenly distributed and detachably mounted on the bolt mounting plate; A nut mounting plate, mounted on the end of the other rotating rod, wherein a plurality of nuts are evenly distributed around the circumference of the nut mounting plate and are detachably mounted thereon; The docking assembly is installed at the bottom of the movable vertical plate corresponding to the bolt installation plate, and the docking assembly is used to install a plurality of bolt bodies and a plurality of nut bodies correspondingly to the flange plates of the two butted steel pipes.

[0006] As a further solution of the present invention: a plurality of first annular grooves are arranged at equal intervals on the inner wall of the ferrule; a plurality of balls are installed in the first annular grooves, and a plurality of second annular grooves cooperating with the balls are arranged on the outer wall of the clamping cylinder, and the number and position of the second annular grooves correspond to those of the first annular grooves.

[0007] As a further solution of the present invention: the rotating assembly includes: A second driving member is mounted on the top of the movable seat; A driving gear mounted on an output end of the second driving member; An annular gear ring is installed on the outer wall of one end of the clamping cylinder, and the annular gear ring is meshedly connected with the driving gear.

[0008] As a further solution of the present invention: a plurality of third telescopic members are evenly distributed on the circumference of the clamping cylinder, one end of the third telescopic member extends into the clamping cylinder and a clamping plate is detachably installed, and the shape and size of the clamping plate correspond to the shape and size of the steel pipe.

[0009] As a further solution of the present invention: a calibration rod is installed on the inner wall of the two clamping tubes close to one end, and the setting position of the calibration rod corresponds to the position of the mounting hole on the flange plate at the end of the steel pipe.

[0010] As a further solution of the present invention: a plurality of rotating mounting columns are evenly distributed on the circumference of the edge of the bolt mounting plate, and the rotating mounting columns can rotate on the bolt mounting plate. A first hexagonal groove is provided at one end of the rotating mounting column close to the nut mounting plate, and one end of the bolt body is installed in the first hexagonal groove. A docking groove is installed at the other end of the rotating mounting column.

[0011] As a further solution of the present invention: a plurality of fixed mounting columns are evenly distributed on the circumference of the edge of the nut mounting plate, the fixed mounting columns are fixedly connected to the nut mounting plate, a second hexagonal groove is provided at one end of the fixed mounting column close to the bolt mounting plate, and a nut body is installed in the second hexagonal groove.

[0012] As a further solution of the present invention: the docking assembly includes: A fourth telescopic member is mounted on an outer wall of the movable vertical plate away from the bolt mounting plate; A mounting sleeve, the top of which is connected to one end of the fourth telescopic member; A screwing machine, detachably mounted on the bottom of the mounting sleeve; One end of the docking block is installed at the output end of the screwing machine, and the other end can be inserted into the docking groove.

[0013] As a further solution of the present invention: a first magnetic block is installed at the bottom of the inner cavity of the first hexagonal groove, and a second magnetic block is installed at the bottom of the inner cavity of the second hexagonal groove.

[0014] As a further solution of the present invention: a buffer assembly is provided at the connection between one of the first telescopic members and the movable seat, and the buffer assembly includes: A sleeve body, one end of which is mounted on the bottom outer wall of the movable seat and the other end of which has a cylindrical opening; A first column, one end of which is mounted on one end of the first telescopic member, and the other end of which is inserted and fitted in the sleeve and connected to the second column. The outer wall of the first column is slidably fitted with the inner wall of the sleeve, and the outer diameter of the second column is smaller than the outer diameter of the first column; The elastic member is sleeved on the periphery of the second column, one end of which is mounted on the end of the first column, and the other end of which is mounted on the inner cavity wall of the sleeve.

[0015] The present invention has the following benefits: The butt joint tool places two steel pipes to be butted in two clamping tubes respectively and fixes them, and then drives two movable seats to approach each other through a first telescopic member, thereby driving the end of one steel pipe to be inserted into the end of another steel pipe, thereby realizing rapid insertion butt joint of the two steel pipes. The butt joint tool is provided by placing two steel pipes butted together through a threaded structure in two clamping cylinders and fixing them respectively, and then driving two movable seats to approach each other through a first telescopic member, and driving one of the clamping cylinders to rotate through a rotating assembly, so that the rotating clamping cylinder can drive the steel pipe clamped inside to rotate, and cooperate with the horizontal movement of the steel pipe, so that the end of one steel pipe can be screwed and installed to the end of the other steel pipe through the threaded structure, so that the two steel pipes can be butt jointed through the threaded structure; The butt joint tool uses two clamping cylinders to respectively fix two steel pipes with flanges, and drives the movable seats to approach each other through the first telescopic member, thereby driving the flanges of the two steel pipes to fit together. At this time, the positions of the bolt mounting plate and the nut mounting plate are adjusted by the second telescopic member, the first driving member, the rotating rod, etc., so that the bolt body and the nut body can fit into the mounting holes at the corresponding positions on the two flanges, and then the ends of the bolt body are installed on the nut body through the butt joint assembly to fix the two flanges. After a group of bolt bodies and nut bodies are installed, the clamping cylinder is driven to rotate a certain angle through the rotating assembly, thereby driving the steel pipe to rotate, and the next mounting hole on the flange of the steel pipe is transferred to the installation position, and a new group of bolt bodies and nut bodies are transferred to the installation position through the rotation of the bolt mounting plate and the nut mounting plate, and then the installation steps are repeated through the butt joint assembly to achieve installation, and multiple groups of bolt bodies and nut bodies are installed on the flange in a cycle in sequence to achieve butt joint of two steel pipes through the flange.

[0016] After the steel pipe is placed and the initial position is calibrated, the remaining docking work can be completed automatically. The docking is convenient, fast and labor-saving. Steel pipes of different shapes and sizes can be clamped by replacing the clamping plates of corresponding shapes and sizes. When installing flanges with different mounting hole distributions, the bolt mounting plate with rotating mounting columns of corresponding positions and sizes can be replaced, and the nut mounting plate with fixed mounting columns of corresponding positions and sizes can be replaced, thereby realizing the docking of steel pipes with different flanges, which has stronger flexibility and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention.

[0018] Figure 2 Schematic diagram of the internal structure of the clamping cylinder in an embodiment of the present invention.

[0019] Figure 3 It is a schematic structural diagram of the bolt mounting plate and the docking assembly in an embodiment of the present invention.

[0020] Figure 4 Schematic diagram of the structure of the nut mounting plate in an embodiment of the present invention.

[0021] Figure 5 Schematic diagram of the structure of the buffer assembly in an embodiment of the present invention.

[0022] In the figure: 1, base; 101, movable groove; 102, first telescopic member; 103, frame plate; 104, control box; 105, second telescopic member; 106, movable vertical plate; 107, first driving member; 108, rotating rod; 2, movable seat; 201, vertical rod; 202, rotating assembly; 203, second driving member; 204, driving gear; 205, annular gear ring; 3, ferrule; 301, first annular groove; 302, ball bearing; 4, clamping cylinder; 401, second annular groove; 402, third telescopic member; 403, clamping plate; 404, anti-skid layer; 405, calibration rod; 406, telescopic member 1. retractable structure; 2. bolt mounting plate; 3. rotating mounting column; 4. first hexagonal groove; 5. docking groove; 5. first magnetic block; 6. nut mounting plate; 7. fixed mounting column; 8. second hexagonal groove; 9. second magnetic block; 10. docking assembly; 11. fourth telescopic member; 12. mounting sleeve; 13. screwing machine; 14. docking block; 15. buffer assembly; 16. sleeve body; 17. first column; 18. second column; 19. elastic member; 20. steel pipe; 21. flange; 22. mounting hole; 23. bolt body; 24. nut body. DETAILED DESCRIPTION

[0023] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0024] Example 1: Please refer to Figures 1 to 4A steel pipe docking tool for water plant construction, comprising a base 1, a movable groove 101 is arranged in the middle of the top of the base 1, first telescopic members 102 are relatively installed on the inner walls of both ends of the movable groove 101, a frame plate 103 is installed on one side of the base 1, two second telescopic members 105 are symmetrically installed on the inner top surface of the frame plate 103, and movable vertical plates 106 are installed on the ends close to each other of the two second telescopic members 105, and the bottoms of the movable vertical plates 106 are both installed on the sides away from each other with first driving members 107, and the bottoms of the movable vertical plates 106 are both rotatably connected to the sides close to each other. Rod 108, one end of the rotating rod 108 is connected to the output end of the first driving member 107 at the corresponding position, the second telescopic member 105 is arranged just above the movable groove 101, a control box 104 is installed on the top of the frame plate 103, and the control box 104 is connected to the lines of each functional driving component, and the two first telescopic members 102 are installed with a movable seat 2 at one end close to each other, and the bottom of the movable seat 2 is slidably connected to the movable groove 101, and the setting shape of the movable seat 2 is not fixed, and a vertical rod 201 is installed on the top of the movable seat 2, and the top of the vertical rod 201 A ferrule 3 is installed, a clamping cylinder 4 is installed in the ferrule 3, a rotating assembly 202 is installed at the top of the movable seat 2 and at the side of the ferrule 3, the rotating assembly 202 is connected to the clamping cylinder 4 and is used to drive the clamping cylinder 4 to rotate, the clamping cylinder 4 can generate relative rotation with the ferrule 3 under the drive of the rotating assembly 202, the ends of the two rotating rods 108 close to each other are respectively installed with a bolt mounting plate 5 and a nut mounting plate 6, a plurality of bolt bodies 10 are evenly distributed and detachably installed on the bolt mounting plate 5, and a plurality of bolt bodies 10 are evenly distributed and detachably installed on the nut mounting plate 6. A plurality of nuts are installed, and a docking assembly 7 is installed at the bottom of the movable vertical plate 106 corresponding to the bolt mounting plate 5. When the ends of the two steel pipes 9 with flanges 901 are docked with each other, the docking assembly 7 can install a plurality of bolt bodies 10 and a plurality of nut bodies 11 correspondingly to the flanges 901 of the two steel pipes 9 to achieve connection and fixation of the two flanges 901. When installing the bolt body 10 and the nut body 11, it is necessary to move the next set of bolt bodies 10 and nut bodies 11 for installation to the working position of the docking assembly 7 by rotating the bolt mounting plate 5 and the nut mounting plate 6.

[0025] See also Figure 1 , Figure 2The inner wall of the ferrule 3 is provided with a plurality of first annular grooves 301 at equal intervals; a plurality of balls 302 are installed in the first annular grooves 301; the outer wall of the clamping tube 4 is provided with a plurality of second annular grooves 401 cooperating with the balls 302; the number and position of the second annular grooves 401 correspond to the first annular grooves 301; the balls 302 are used to reduce the rotational friction between the clamping tube 4 and the ferrule 3; the rotating assembly 202 includes a second driving member 203, a driving gear 204 and an annular gear ring 205; the second driving member 203 is installed at the top end of the movable seat 2; the driving gear 204 is installed at the output end of the second driving member 203; the annular gear ring 205 is installed on the outer wall of one end of the clamping cylinder 4, the annular gear ring 205 is meshed with the driving gear 204, the corresponding circle center axis of the clamping cylinder 4 is located directly below the corresponding circle center axis of the rotating rod 108, the steel pipe 9 is fixed in the middle of the inner cavity of the clamping cylinder 4, when the steel pipe 9 is driven to rotate by the clamping cylinder 4, the flange 901 rotates with the steel pipe 9, and at this time, when the two rotating rods 108 respectively drive the bolt mounting plate 5 and the nut mounting plate 6 to rotate, the rotation of the bolt mounting plate 5 and the rotation of the nut mounting plate 6 can correspond to the rotation of the flange 901, so that the bolt body 10 and the nut body 11 can be quickly moved to the installation position corresponding to the mounting hole 902 on the flange 901 during docking.

[0026] See also Figure 1 , Figure 2 A plurality of third telescopic members 402 are evenly distributed on the circumference of the clamping tube 4, one end of the third telescopic member 402 extends into the clamping tube 4 and is detachably mounted with a clamping plate 403, the shape and size of the clamping plate 403 correspond to the shape and size of the steel pipe 9, and the clamping plate 403 can be replaced when fixing different steel pipes 9, the clamping plate 403 is arc-shaped and an anti-skid layer 404 is provided on the inner wall, the anti-skid layer 404 has a certain elasticity, and the anti-skid layer 404 is used to avoid clamping damage to the outer wall of the steel pipe 9, while improving the clamping stability of the steel pipe 9.

[0027] In this embodiment, in order to facilitate the display and description of the docking method, the third telescopic member 402 is configured as shown in the attached Figure 2 In the figure, two clamping plates 403 are arranged in a clamping tube 4. In actual use, the number of the third telescopic members 402 can be determined according to demand, and the number of the third telescopic members 402 is at least two.

[0028] The present embodiment provides a method for docking steel pipes 9 for insertion docking: when docking the inserted steel pipes 9, it is necessary to insert one end of one steel pipe 9 into one end of the other steel pipe 9, and place the two steel pipes 9 on the clamping plates 403 located at the bottom in the two clamping tubes 4 respectively, and then drive the upper and lower clamping plates 403 to approach each other through the extension of the two third telescopic parts 402, and then clamp the outer wall of the steel pipe 9 through the clamping plates 403, so that the steel pipe 9 is fixed in the clamping tube 4, ensuring that the two steel pipes 9 are located at the same height, and then drive the two movable seats 2 to approach each other through the first telescopic part 102, and then drive the end of one steel pipe 9 to be inserted into the end of the other steel pipe 9.

[0029] Example 2: See Figure 1 , Figure 3 , Figure 4On the basis of the first embodiment, a plurality of rotating mounting columns 501 are evenly distributed on the circumference of the edge of the bolt mounting plate 5, and the rotating mounting columns 501 can rotate on the bolt mounting plate 5. A first hexagonal groove 502 is provided at one end of the rotating mounting column 501 close to the nut mounting plate 6, and one end of the bolt body 10 is installed in the first hexagonal groove 502. A docking groove 503 is installed at the other end of the rotating mounting column 501. A plurality of fixed mounting columns 601 are evenly distributed on the circumference of the edge of the nut mounting plate 6. The fixed mounting columns 601 are fixedly connected to the nut mounting plate 6. A second hexagonal groove 602 is provided at one end of the fixed mounting column 601 close to the bolt mounting plate 5, and a nut body 11 is installed in the second hexagonal groove 602. The thickness of the first hexagonal groove 502 is consistent with the thickness of the head of the bolt body 10 (referring to the part used for twisting), and the thickness of the second hexagonal groove 602 is consistent with the thickness of the nut body 11. Through this arrangement, when the side of the nut mounting plate 6 is aligned with one of the flanges When the side of the bolt mounting plate 5 fits with the outer wall of the mounting hole 902 on the flange 901, the nut body 11 is easy to fit with the outer wall of the mounting hole 902 on the flange 901, and the bolt mounting plate 5 has a certain distance from the other flange 901 at the beginning of the docking. After the bolt body 10 is inserted into the relative mounting holes 902 on the two flanges 901, the docking assembly 7 drives the bolt body 10 to rotate, and the bolt body 10 moves horizontally while rotating until the side of the bolt mounting plate 5 fits with the outer wall of the other flange 901. The head of the bolt body 10 fits with the outer wall of the flange 901, and the two flanges 901 are tightly installed between the bolt body 10 and the nut body 11. If there is a protruding part at the other end of the bolt body 10 after installation, it is necessary to reserve a space in the second hexagonal groove 602 to accommodate the protruding part (it can be a cylindrical hole or other structure corresponding to the shape and size of the bolt body 10, which does not affect the installation of the nut body 11). When the other end of the bolt body 10 after docking is just aligned with the end of the nut body 11, there is no need to set a reserved space.

[0030] See also Figure 3 , Figure 4The docking assembly 7 includes a fourth telescopic member 701, a mounting sleeve 702 and a screwing machine 703. The fourth telescopic member 701 is mounted on the outer wall of the movable vertical plate 106 away from the bolt mounting plate 5. The top of the mounting sleeve 702 is connected to one end of the fourth telescopic member 701. The screwing machine 703 is detachably mounted on the bottom of the mounting sleeve 702. The screwing machine 703 can be selected as a driving motor for installing bolts in the prior art. A docking block 704 is installed at the output end of the screwing machine 703. One end of the docking block 704 can be inserted into the docking groove 503. The docking block 704 is not fixed in shape and does not rotate relative to the docking groove 503. In order to facilitate the installation of the bolt body 10 and the nut body 11, a first magnetic block 504 is installed at the bottom of the inner cavity of the first hexagonal groove 502, and a second magnetic block 603 is installed at the bottom of the inner cavity of the second hexagonal groove 602.

[0031] See also Figure 1 A calibration rod 405 is installed on the inner wall of the two clamping tubes 4 close to one end, and the setting position of the calibration rod 405 corresponds to the position of the mounting hole 902 on the flange 901 at the end of the steel pipe 9. A telescopic structure 406 is provided in the middle of the calibration rod 405. The upper part of the calibration rod 405 is horizontally arranged, and the calibration rod 405 is located directly below the central axis of the clamping tube 4. When installing the steel pipe 9 with the flange 901, one end of the calibration rod 405 is inserted into the mounting hole 902 at the bottom of the flange 901. At this time, the position of the flange 901 is fixed. When the steel pipe 9 is clamped and fixed, the calibration rod 405 is retracted by the telescopic structure 406, and the end of the calibration rod 405 is withdrawn from the mounting hole 902 so as not to affect the subsequent rotation of the flange 901. The telescopic structure 406 can be set to a telescopic rod structure in the prior art.

[0032] The present embodiment provides a method for docking steel pipes 9 connected by flanges 901, wherein the ends of the two steel pipes 9 with flanges 901 are oriented toward each other, and the two steel pipes 9 are respectively installed in two clamping tubes 4 in the manner of installing the steel pipes 9 in the first embodiment, and the position of the mounting hole 902 on the flange 901 is corrected, and one mounting hole 902 of the flange 901 is adjusted to the top, and the rotating rod 108 is driven to rotate by the first driving member 107, and the bolt mounting plate 5 and the nut mounting plate 6 are driven to rotate by the two rotating rods 108 respectively, and a rotating mounting column 501 and a fixed mounting column 601 are adjusted to the bottom, and the two second telescopic members 105 are respectively driven to rotate. The position of the bolt mounting plate 5 and the position of the nut mounting plate 6 are adjusted separately. The side wall of the nut mounting plate 6 is fitted with the outer side wall of a flange plate 901. At this time, the nut body 11 is fitted with the periphery of the mounting hole 902 at the corresponding position. The position of the bolt mounting plate 5 is adjusted so that one end of the bolt body 10 in the lower rotating mounting column 501 is close to the mounting hole 902 at the corresponding position. Then, the fourth telescopic member 701 is used to drive the mounting sleeve 702 to move, and then the screwing machine 703 and the docking block 704 are driven to move, so that the end of the docking block 704 is inserted into the docking groove 503 of the lowermost rotating mounting column 501. Then, the installation of the bolt body 10 and the nut body 11 is started. The docking block 704 is driven to rotate by the screwing machine 703, and then the rotating installation column 501 is driven to rotate, and then the bottom bolt body 10 is driven to rotate. During the rotation, the second telescopic member 105 is used to synchronously drive the bolt installation plate 5 to move. The bolt body 10 is installed in the installation hole 902 while rotating, until the side wall of the bolt installation plate 5 fits with the outer wall of the other flange 901, and the bolt body 10 and the nut body 11 are assembled and installed. After that, the end of the docking block 704 is withdrawn from the docking groove 503 by the fourth telescopic member 701, and the driving gear 204 is driven to rotate by the second driving member 203, thereby driving the driven gear to rotate, thereby driving the clamping The tube 4 rotates, and the next mounting hole 902 is adjusted to the top of the flange 901 by rotating the clamping tube 4 at a certain angle. At the same time, the rotating rod 108 is driven to rotate by the first driving member 107, and the next rotating mounting column 501 is adjusted to the bottom of the bolt mounting plate 5, and the next fixed mounting column 601 is adjusted to the bottom of the nut mounting plate 6, and then the end of the docking block 704 is re-inserted into the docking groove 503 to carry out the combined installation of the next group of bolt bodies 10 and nut bodies 11. The process is repeated in sequence to install multiple groups of bolt bodies 10 and nut bodies 11 on the two flanges 901, thereby realizing the docking of two steel pipes 9 connected by the flanges 901.

[0033] Example 3: See Figure 1 , Figure 5On the basis of the first embodiment, a buffer assembly 8 is provided at the connection between one of the first telescopic members 102 and the movable seat 2, and the buffer assembly 8 includes a sleeve 801, a first column 802 and an elastic member 804, one end of the sleeve 801 is mounted on the bottom outer wall of the movable seat 2, and the other end of the sleeve 801 has a cylindrical opening, one end of the first column 802 is mounted on one end of the first telescopic member 102, and the other end is inserted and connected in the sleeve 801 and is connected with the second column 803, the outer wall of the first column 802 is slidably fitted with the inner wall of the sleeve 801, and the outer diameter of the second column 803 is smaller than the outer diameter of the first column 802, and the elastic member 804 is sleeved on the periphery of the second column 803, one end of which is mounted on the end of the first column 802, and the other end is mounted on the inner cavity wall of the sleeve 801, and an elastic activity interval is provided for the connection between the movable seat 2 and the first telescopic member 102 through the elastic member 804.

[0034] The present embodiment provides a method for docking steel pipes 9 docked by a threaded structure: two steel pipes 9 docked by a threaded structure, generally one end of the steel pipe 9 has an internal thread, and the other end of the steel pipe 9 has an external thread, and the end of one steel pipe 9 is rotated and installed to the end of the other steel pipe 9 by twisting. In this embodiment, after the two steel pipes 9 are installed in two clamping tubes 4 in the manner of the first embodiment, one clamping tube 4 does not rotate, and the other clamping tube 4 rotates and moves at the same time to simulate manual twisting of the steel pipe 9, and then the end of one steel pipe 9 is rotated and installed to the end of the other steel pipe 9. The connection structure of the steel pipe 9 for threaded connection is relatively fragile. When it is automatically installed by a machine, it is easy to find the threaded access port and the threaded structure is damaged due to the large rotation force. The above problem is solved by a buffer component 8. The steel pipe 9 that needs to be rotated is installed in the clamping tube 4 on the movable seat 2 provided with the buffer component 8, and the movable seat 2 is driven to move by the first telescopic member 102 so that the ends of the two steel pipes 9 are aligned. When connecting, the movable seat 2 and the first telescopic member 102 are elastically connected by the elastic member 804 to ensure that the threaded structures on the two steel pipes 9 will not be over-extruded. When connecting, if one steel pipe 9 needs to be twisted clockwise to be installed on the other steel pipe 9, the steel pipe 9 is first rotated counterclockwise by the rotating component 202 for one circle, and the fitting stability between the threaded structures of the two steel pipes 9 is ensured by rotating in the opposite direction for one circle. Then, when rotating clockwise, it is not easy for the threaded connection port to get stuck. Then, one steel pipe 9 is installed on the other steel pipe 9 by rotating and moving at the same time, so as to achieve the connection between the two steel pipes 9 connected by the threaded structure. When installing the inserted butt-jointed steel pipe 9 and the steel pipe 9 connected by the flange 901, it is necessary to ensure the fitting strength between the two steel pipes 9. At this time, after the ends of the two steel pipes 9 are connected, the first telescopic member 102 continues to apply pressure, and the end of the second column 803 is convenient for contacting the inner wall of the sleeve 801. At this time, the elastic member 804 does not provide a buffering effect, thereby ensuring the fitting strength between the two steel pipes 9.

[0035] 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.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A steel pipe butt joint tool for water plant construction, characterized in that: include: A base, wherein a movable groove is provided at the middle part of the top of the base, first telescopic members are relatively installed on the inner walls at both ends of the movable groove, a frame plate is installed on one side of the base, two second telescopic members are symmetrically installed on the inner top surface of the frame plate, movable vertical plates are installed on the ends close to each other of the two second telescopic members, first driving members are installed on the sides of the bottoms of the movable vertical plates away from each other, rotating rods are rotatably connected on the sides of the bottoms of the movable vertical plates close to each other, one end of the rotating rod is connected to the output end of the first driving member at the corresponding position, and the second telescopic member is arranged directly above the movable groove; The movable seats are provided in two numbers and are respectively connected to the ends of the two first telescopic members close to each other, the bottom of the movable seat is slidably connected in the movable groove, the top of the movable seat is provided with a vertical rod and a rotating assembly, and the rotating assembly is connected to the clamping cylinder and is used to drive the clamping cylinder to rotate; A ferrule, detachably mounted on the top end of the vertical rod, for fixing the clamping tube; A clamping cylinder is rotatably connected to the inside of the ferrule and can rotate relative to the ferrule under the drive of the rotating assembly; A bolt mounting plate is mounted on the end of one of the rotating rods, and a plurality of bolt bodies are evenly distributed and detachably mounted on the bolt mounting plate; A nut mounting plate, mounted on the end of the other rotating rod, wherein a plurality of nuts are evenly distributed around the circumference of the nut mounting plate and are detachably mounted thereon; The docking assembly is installed at the bottom of the movable vertical plate corresponding to the bolt installation plate, and the docking assembly is used to install a plurality of bolt bodies and a plurality of nut bodies correspondingly to the flange plates of the two butted steel pipes.

2. A steel pipe butt joint tool for waterworks construction according to claim 1, characterized in that: The inner wall of the ring is provided with a plurality of first annular grooves at equal intervals; a plurality of balls are installed in the first annular grooves, and the outer wall of the clamping cylinder is provided with a plurality of second annular grooves cooperating with the balls, and the number and position of the second annular grooves correspond to those of the first annular grooves.

3. A steel pipe butt joint tool for waterworks construction according to claim 2, characterized in that: The rotating assembly comprises: A second driving member is mounted on the top of the movable seat; A driving gear mounted on an output end of the second driving member; An annular gear ring is installed on the outer wall of one end of the clamping cylinder, and the annular gear ring is meshedly connected with the driving gear.

4. A steel pipe butt joint tool for waterworks construction according to claim 1, characterized in that: A plurality of third telescopic members are evenly distributed on the circumference of the clamping cylinder. One end of the third telescopic member extends into the clamping cylinder and a clamping plate is detachably installed thereon. The shape and size of the clamping plate correspond to the shape and size of the steel pipe.

5. A steel pipe butt joint tool for waterworks construction according to claim 4, characterized in that: A calibration rod is installed on the inner wall of the two clamping tubes close to one end, and the setting position of the calibration rod corresponds to the position of the mounting hole on the flange plate at the end of the steel pipe.

6. A steel pipe butt joint tool for waterworks construction according to claim 1, characterized in that: A plurality of rotating mounting posts are evenly distributed on the circumference of the edge of the bolt mounting plate, and the rotating mounting posts can rotate on the bolt mounting plate. A first hexagonal groove is provided at one end of the rotating mounting post close to the nut mounting plate, and one end of the bolt body is installed in the first hexagonal groove. A docking groove is installed at the other end of the rotating mounting post.

7. A steel pipe butt joint tool for waterworks construction according to claim 6, characterized in that: A plurality of fixed mounting columns are evenly distributed on the circumference of the edge of the nut mounting plate, and the fixed mounting columns are fixedly connected to the nut mounting plate. A second hexagonal groove is provided at one end of the fixed mounting column close to the bolt mounting plate, and a nut body is installed in the second hexagonal groove.

8. A steel pipe butt joint tool for waterworks construction according to claim 6, characterized in that: The docking assembly comprises: A fourth telescopic member is mounted on an outer wall of the movable vertical plate away from the bolt mounting plate; A mounting sleeve, the top of which is connected to one end of the fourth telescopic member; A screwing machine, detachably mounted on the bottom of the mounting sleeve; One end of the docking block is installed at the output end of the screwing machine, and the other end can be inserted into the docking groove.

9. A steel pipe butt joint tool for waterworks construction according to claim 7, characterized in that: A first magnetic block is installed at the bottom of the inner cavity of the first hexagonal slot, and a second magnetic block is installed at the bottom of the inner cavity of the second hexagonal slot.

10. A steel pipe butt joint tool for waterworks construction according to claim 1, characterized in that: A buffer component is provided at the connection between one of the first telescopic members and the movable seat, and the buffer component includes: A sleeve body, one end of which is mounted on the bottom outer wall of the movable seat and the other end of which has a cylindrical opening; A first column, one end of which is mounted on one end of the first telescopic member, and the other end of which is inserted and fitted in the sleeve and connected to the second column. The outer wall of the first column is slidably fitted with the inner wall of the sleeve, and the outer diameter of the second column is smaller than the outer diameter of the first column; The elastic member is sleeved on the periphery of the second column, one end of which is mounted on the end of the first column, and the other end of which is mounted on the inner cavity wall of the sleeve.

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