A steel pipe connection tool used in waterworks construction

Abstract

This invention relates to the technical field of steel pipe splicing, specifically a steel pipe splicing tool for waterworks construction. It includes a base with two adjustable movable seats at the top. A rotatable clamping cylinder is mounted on the top of each movable seat via a collar. A frame plate is installed on the side of the base, with two second telescopic members symmetrically installed on the top surface of the frame plate. Movable vertical plates are installed at opposite ends of the second telescopic members. Bolt mounting discs and nut mounting discs are respectively mounted on the bottom of the two movable vertical plates via rotating rods. A splicing assembly is installed at the bottom of the movable vertical plates with bolt mounting discs. When two steel pipes are fixed by the clamping cylinders, the movement and rotation of the clamping cylinders enable splicing of insert-type steel pipes and steel pipes connected by threaded structures. Through the cooperation of the bolt mounting discs, nut mounting discs, and splicing assembly, splicing of steel pipes connected by flanges can be achieved, enabling splicing of various types of steel pipes with high functionality.

Description

Technical Field

[0001] This invention relates to the technical field of steel pipe connection, specifically a steel pipe connection tool used in waterworks construction. Background Technology

[0002] During the construction of a waterworks, steel pipes need to be connected to ensure that tap water from the waterworks can be transmitted to the residential water supply pipes. Steel pipe connection tools are required when connecting the steel pipes.

[0003] Existing patent CN217890795U discloses a steel pipe connection tool for waterworks construction, comprising a connection tool body, an adjustment box, and moving wheels. The bottom of the connection tool body is fixedly connected to the top of the adjustment box. This tool uses a control box to activate a connection pushing component and a transmission insertion component, allowing the connection pushing component to work in conjunction with the transmission insertion component to insert and position the pipe into the ground. This, in turn, drives the bottom of the adjustment box to be positioned and fixed. This solves the problems of inconvenient operation and low connection efficiency of existing steel pipe connection tools. However, in actual use, the connection methods between steel pipes vary. Common steel pipe connection methods include insertion connection, threaded connection, and flange connection, etc. The aforementioned connection tools can only achieve end-insertion connection of steel pipes, resulting in limited functionality. Therefore, those skilled in the art have proposed a steel pipe connection tool for waterworks construction to address the problems mentioned above. Summary of the Invention

[0004] The purpose of this invention is to provide a steel pipe connection tool for waterworks construction, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A steel pipe connection tool used in waterworks construction includes:

[0007] The base has a movable groove at the top center. First telescopic members are installed opposite each other on the inner walls 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 at the ends of the two second telescopic members that are close to each other. First driving members are installed on the bottom sides of the movable vertical plates that are far apart from each other. Rotating rods are rotatably connected to the bottom sides of the movable vertical plates that are 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. The second telescopic members are located directly above the movable groove.

[0008] The number of movable seats is set to two and they are respectively connected to the two adjacent ends of the first telescopic members. The bottom of the movable seat is slidably connected in the movable groove. The top of the movable seat is equipped with a vertical rod and a rotating assembly. The rotating assembly is connected to the clamping cylinder and is used to drive the clamping cylinder to rotate.

[0009] A collar, detachably mounted on the top of the vertical rod, is used to secure the clamping cylinder;

[0010] The clamping cylinder is rotatably connected inside the collar and can rotate relative to the collar under the drive of the rotating assembly;

[0011] A bolt mounting disc is installed at the end of one of the rotating rods, and a plurality of bolt bodies are evenly distributed around the circumference of the bolt mounting disc and can be detachably mounted thereon;

[0012] A nut mounting plate is installed at the end of another rotating rod, and a number of nuts are evenly distributed around the circumference of the nut mounting plate and can be detachably installed.

[0013] A docking assembly is installed at the bottom of the movable vertical plate corresponding to the bolt mounting plate. The docking assembly is used to install a number of bolt bodies and a number of nut bodies onto the flanges of the two steel pipes being docked.

[0014] As a further embodiment of the present invention: the inner wall of the collar is provided with a plurality of first annular grooves at equal intervals; a plurality of balls are installed in the first annular grooves; the outer wall of the clamping cylinder is provided with a plurality of second annular grooves that cooperate with the balls; the number and position of the second annular grooves correspond to the first annular grooves.

[0015] As a further embodiment of the present invention: the rotating assembly includes:

[0016] The second driving component is installed on the top of the movable seat;

[0017] The drive gear is installed at the output end of the second drive component;

[0018] An annular gear ring is installed on the outer wall of one end of the clamping cylinder, and the annular gear ring meshes with the driving gear.

[0019] As a further embodiment of the present invention: a plurality of third telescopic members are evenly distributed around the circumference of the clamping cylinder, one end of the third telescopic member extends into the clamping cylinder and is detachably mounted with a clamping plate, the shape and size of the clamping plate corresponding to the shape and size of the steel pipe.

[0020] As a further aspect of the present invention: a calibration rod is installed on the inner wall of one of the two clamping cylinders that are close to each other, and the position of the calibration rod corresponds to the position of the mounting hole on the flange at the end of the steel pipe.

[0021] As a further embodiment of the present invention: a plurality of rotating mounting posts are evenly distributed around the edge of the bolt mounting plate, 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 near the nut mounting plate, one end of the bolt body is installed in the first hexagonal groove, and a mating groove is installed at the other end of the rotating mounting post.

[0022] As a further embodiment of the present invention: a plurality of fixed mounting posts are evenly distributed around the edge of the nut mounting plate, the fixed mounting posts are fixedly connected to the nut mounting plate, and a second hexagonal groove is provided at the end of the fixed mounting post near the bolt mounting plate, and the nut body is installed in the second hexagonal groove.

[0023] As a further embodiment of the present invention: the docking component includes:

[0024] The fourth telescopic component is installed on the outer wall of the movable vertical plate on the side away from the bolt mounting plate;

[0025] The mounting sleeve is attached to one end of the fourth telescopic member at the top.

[0026] A screwdriver is detachably mounted on the bottom of the mounting sleeve;

[0027] The docking block has one end installed at the output end of the cranking machine, and the other end can be inserted into the docking groove.

[0028] As a further embodiment of the present invention: 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.

[0029] As a further embodiment of the present invention: a buffer assembly is provided at the connection between the first telescopic member and the movable seat, the buffer assembly comprising:

[0030] The sleeve is installed at one end on the bottom outer wall of the movable seat, and has a cylindrical opening at the other end;

[0031] The first column has one end installed at one end of the first telescopic member, and the other end is inserted and connected to the sleeve body and connected to the second column. The outer wall of the first column slides and fits against the inner wall of the sleeve body. The outer diameter of the second column is smaller than the outer diameter of the first column.

[0032] An elastic element is sleeved around the second column, with one end installed at the end of the first column and the other end installed on the inner wall of the sleeve.

[0033] The present invention has the following advantages:

[0034] This docking tool places and fixes two insertable steel pipes in two clamping cylinders respectively, and then drives the two movable seats to move closer to each other through the first telescopic component, thereby driving the end of one steel pipe to insert into the end of the other steel pipe, thus achieving rapid insertion docking of the two steel pipes.

[0035] This docking tool places two steel pipes that are to be docked via a threaded structure into two clamping cylinders and fixes them in place. When the two movable seats are brought closer together by the first telescopic component, the rotating component drives one of the clamping cylinders to rotate. The rotating clamping cylinder can drive the steel pipes clamped inside to rotate. In conjunction with the horizontal movement of the steel pipes, the end of one steel pipe can be screwed onto the end of the other steel pipe via the threaded structure, thus achieving the docking of the two steel pipes via the threaded structure.

[0036] This docking tool uses two clamping cylinders to fix two steel pipes with flanges respectively. The first telescopic component drives the movable seats to move closer together, thereby causing the flanges of the two steel pipes to fit together. At this time, the second telescopic component, the first driving component, and the rotating rod work together to adjust the position of the bolt mounting plate and the nut mounting plate, so that the bolt body and the nut body can fit into the corresponding mounting holes on the two flanges. Then, the docking assembly installs the end of the bolt body onto the nut body, thus fixing the two flanges. After one set of bolt bodies and nut bodies is installed, the rotating assembly drives the clamping cylinders to rotate a certain angle, thereby driving the steel pipe to rotate and moving the next mounting hole on the flange of the steel pipe to the installation position. The rotation of the bolt mounting plate and the nut mounting plate moves a new set of bolt bodies and nut bodies to the installation position. The docking assembly repeats the installation steps to complete the installation. Multiple sets of bolt bodies and nut bodies are installed onto the flanges in a cyclical manner, realizing the docking of two steel pipes through the flanges.

[0037] After the steel pipe is placed and its initial position is calibrated, the remaining docking work can be completed automatically. The docking is convenient, quick, and labor-saving. By changing the clamping plates of the corresponding shape and size, steel pipes of different shapes and sizes can be clamped. When installing flanges with different mounting hole distributions, bolt mounting plates with rotating mounting columns of the corresponding position and size can be used, and nut mounting plates with fixed mounting columns of the corresponding position and size can be used. This enables the docking of steel pipes with different flanges, providing greater flexibility and practicality. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention.

[0039] Figure 2 This is a schematic diagram of the internal structure of the clamping cylinder in an embodiment of the present invention.

[0040] Figure 3 This is a schematic diagram of the structure of the bolt mounting plate and the docking assembly in an embodiment of the present invention.

[0041] Figure 4 This is a schematic diagram of the nut mounting disc in an embodiment of the present invention.

[0042] Figure 5 This is a schematic diagram of the structure of the buffer component in an embodiment of the present invention.

[0043] In the diagram: 1. Base; 101. Movable groove; 102. First telescopic component; 103. Frame plate; 104. Control box; 105. Second telescopic component; 106. Movable vertical plate; 107. First driving component; 108. Rotating rod; 2. Movable seat; 201. Vertical rod; 202. Rotating assembly; 203. Second driving component; 204. Drive gear; 205. Ring gear; 3. Ring; 301. First annular groove; 302. Ball bearing; 4. Clamping cylinder; 401. Second annular groove; 402. Third telescopic component; 403. Clamping plate; 404. Anti-slip layer; 405. Calibration rod; 406. Extension 5. Shrinkable structure; 6. Bolt mounting plate; 501. Rotating mounting column; 502. First hexagonal groove; 503. Butt joint groove; 504. First magnetic block; 7. Nut mounting plate; 601. Fixed mounting column; 602. Second hexagonal groove; 603. Second magnetic block; 7. Butt joint assembly; 701. Fourth telescopic component; 702. Mounting sleeve; 703. Tightening mechanism; 704. Butt joint block; 8. Buffer assembly; 801. Sleeve body; 802. First column; 803. Second column; 804. Elastic component; 9. Steel pipe; 901. Flange; 902. Mounting hole; 10. Bolt body; 11. Nut body. Detailed Implementation

[0044] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0045] Example 1: Please refer to Figures 1 to 4A steel pipe connection tool for waterworks construction includes a base 1. A movable groove 101 is provided at the center of the top of the base 1. First telescopic members 102 are installed opposite each other 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. Movable vertical plates 106 are installed at the ends of the two second telescopic members 105 that are close to each other. First driving members 107 are installed on the bottom sides of the movable vertical plates 106 that are far apart from each other. Rotary connecting members are rotatably connected to the bottom sides of the movable vertical plates 106 that are close to each other. A rotating rod 108 is connected at one end to the output end of the first driving component 107 at the corresponding position. A second telescopic component 105 is positioned directly above the movable slot 101. A control box 104 is mounted on the top of the frame plate 103, and the control box 104 is connected to the wiring of each functional driving component. Movable seats 2 are mounted on the adjacent ends of the two first telescopic components 102. The bottom of each movable seat 2 is slidably connected within the movable slot 101. The shape of the movable seat 2 is not fixed. A vertical rod 201 is mounted on the top of each movable seat 2. A collar 3 is installed, and a clamping cylinder 4 is installed inside the collar 3. A rotating assembly 202 is installed at the top of the movable seat 2 and at the side of the collar 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 rotate relative to the collar 3 under the drive of the rotating assembly 202. A bolt mounting plate 5 and a nut mounting plate 6 are respectively installed at the close ends of the two rotating rods 108. Several bolt bodies 10 are evenly distributed and detachably installed on the circumference of the bolt mounting plate 5. Several bolt bodies 10 are evenly distributed and detachably installed on the circumference of 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 two steel pipes 9 with flanges 901 are docked together, the docking assembly 7 can install a plurality of bolt bodies 10 and a plurality of nut bodies 11 onto the flanges 901 of the two steel pipes 9, thereby connecting and fixing the two flanges 901. When installing bolt bodies 10 and nut bodies 11, the bolt mounting plate 5 and nut mounting plate 6 need to be rotated to move the next set of bolt bodies 10 and nut bodies 11 for installation to the working position of the docking assembly 7.

[0046] Please see Figure 1 , Figure 2The inner wall of the collar 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 cylinder 4 is provided with a plurality of second annular grooves 401 that cooperate with the balls 302. The number and position of the second annular grooves 401 correspond to the first annular grooves 301. The balls 302 reduce the rotational friction between the clamping cylinder 4 and the collar 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 of the movable seat 2, the driving gear 204 is installed at the output end of the second driving member 203, and the annular gear ring 205... 205 is installed on the outer wall of one end of the clamping cylinder 4. The annular gear ring 205 is meshed with the drive gear 204. The corresponding circular center axis of the clamping cylinder 4 is located directly below the corresponding circular 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 clamping cylinder 4 drives the steel pipe 9 to rotate, the flange 901 rotates with the steel pipe 9. At this time, when the two rotating rods 108 drive the bolt mounting plate 5 and the nut mounting plate 6 to rotate respectively, the rotation of the bolt mounting plate 5 and the nut mounting plate 6 can correspond to the rotation of the flange 901, which facilitates the bolt body 10 and the nut body 11 to quickly move to the mounting position corresponding to the mounting hole 902 on the flange 901 during docking.

[0047] Please see Figure 1 , Figure 2 The clamping cylinder 4 is provided with a plurality of third telescopic members 402 evenly distributed around its circumference. One end of each third telescopic member 402 extends into the clamping cylinder 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. The clamping plate 403 can be replaced when fixing different steel pipes 9. The clamping plate 403 is arc-shaped and has an anti-slip layer 404 on its inner wall. The anti-slip layer 404 has a certain elasticity. The anti-slip layer 404 is used to avoid clamping damage to the outer wall of the steel pipe 9 and to improve the clamping stability of the steel pipe 9.

[0048] In this embodiment, for ease of demonstration and description of the docking method, the third telescopic member 402 is configured as shown in the attached figure. Figure 2 The clamping cylinder 4 contains two clamping plates 403 arranged vertically. In actual use, the number of third telescopic components 402 can be determined according to the requirements, and the number of third telescopic components 402 is at least two.

[0049] This embodiment provides a method for connecting insert-type steel pipes 9: When connecting insert-type steel pipes 9, one end of one steel pipe 9 needs to be inserted into one end of another steel pipe 9. The two steel pipes 9 are placed on the lower clamping plates 403 inside the two clamping cylinders 4. The extension of the two third telescopic members 402 drives the upper and lower clamping plates 403 to move closer to each other, thereby clamping the outer wall of the steel pipe 9 by the clamping plates 403. The steel pipe 9 is then fixed inside the clamping cylinder 4, ensuring that the two steel pipes 9 are at the same height. Then, the first telescopic member 102 drives the two movable seats 2 to move closer to each other, thereby driving the end of one steel pipe 9 to be inserted into the end of another steel pipe 9.

[0050] Example 2: See Figure 1 , Figure 3 , Figure 4Based on Embodiment 1, a plurality of rotating mounting posts 501 are evenly distributed around the edge of the bolt mounting disc 5. Each rotating mounting post 501 can rotate on the bolt mounting disc 5. A first hexagonal groove 502 is provided at one end of the rotating mounting post 501 near the nut mounting disc 6, and one end of the bolt body 10 is installed in the first hexagonal groove 502. A mating groove 503 is installed at the other end of the rotating mounting post 501. A plurality of fixed mounting posts 601 are evenly distributed around the edge of the nut mounting disc 6, and the fixed mounting posts 601 are fixedly connected to the nut mounting disc 6. A second hexagonal groove 602 is provided at one end of the fixed mounting post 601 near the bolt mounting disc 5, and a nut body 11 is installed in the second hexagonal groove 602. The thickness of the first hexagonal groove 502 is the same as the thickness of the head of the bolt body 10 (the part used for tightening), and the thickness of the second hexagonal groove 602 is the same as the thickness of the nut body 11. With this arrangement, when the side of the nut mounting disc 6 is connected to one of the flanges... When the sides of flange 901 are fitted together, the nut body 11 can easily fit against the outer wall of the mounting hole 902 on flange 901. At the beginning of the connection, the bolt mounting plate 5 is at a certain distance from the other flange 901. As the bolt body 10 is inserted into the corresponding mounting holes 902 on the two flanges 901, the connection assembly 7 drives the bolt body 10 to rotate. The bolt body 10 rotates and moves horizontally until the side of the bolt mounting plate 5 fits against the outer wall of the other flange 901. At this point, the head of the bolt body 10 fits against 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, space needs to be reserved 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 connection is aligned with the end of the nut body 11, no reserved space is required.

[0051] Please see Figure 3 , Figure 4The docking assembly 7 includes a fourth telescopic member 701, a mounting sleeve 702, and a tightening motor 703. The fourth telescopic member 701 is installed on the outer wall of the movable vertical plate 106 away from the bolt mounting disc 5. The top of the mounting sleeve 702 is connected to one end of the fourth telescopic member 701. The tightening motor 703 is detachably installed at the bottom of the mounting sleeve 702. The tightening motor 703 can be any existing drive motor used for installing bolts. A docking block 704 is installed at the output end of the tightening motor 703. One end of the docking block 704 can be inserted into the docking groove 503. The shape of the docking block 704 is not fixed and it does not rotate relative to the docking groove 503. 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.

[0052] Please see Figure 1 A calibration rod 405 is installed on the inner wall of one of the two clamping cylinders 4, which are close to each other. The 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 set. The calibration rod 405 is located directly below the central axis of the clamping cylinder 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. After 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 as a telescopic rod type structure in the prior art.

[0053] This embodiment provides a method for connecting steel pipes 9 via flanges 901. The ends of two steel pipes 9 with flanges 901 are oriented towards each other. Following the installation method of embodiment one, the two steel pipes 9 are installed into two clamping cylinders 4 respectively. The position of the mounting holes 902 on the flanges 901 is corrected, and one mounting hole 902 of the flanges 901 is adjusted to the uppermost position. The first driving member 107 drives the rotating rod 108 to rotate, and the two rotating rods 108 respectively drive the bolt mounting plate 5 and the nut mounting plate 6 to rotate. A rotating mounting column 501 and a fixed mounting column 601 are adjusted to the lowermost position, and then connected by two second telescopic members 105. Do not adjust the positions of bolt mounting disc 5 and nut mounting disc 6. The side wall of nut mounting disc 6 should be in contact with the outer side wall of a flange 901. At this time, the nut body 11 should be in contact with the outer periphery of the corresponding mounting hole 902. Adjust the position of bolt mounting disc 5 so that one end of bolt body 10 in the lower rotating mounting column 501 is close to the corresponding mounting hole 902. Then, the fourth telescopic member 701 drives the mounting sleeve 702 to move, which in turn drives the tightening machine 703 and the mating block 704 to move, so that the end of the mating block 704 is inserted into the mating groove 503 of the lowermost rotating mounting column 501. Then, begin the installation of bolt body 10 and nut body 11. The cranking motor 703 drives the mating block 704 to rotate, which in turn drives the rotating mounting column 501 to rotate, and then drives the lowest bolt body 10 to rotate. During rotation, the second telescopic member 105 synchronously drives the bolt mounting disc 5 to move. The bolt body 10 rotates and moves into the mounting hole 902 until the side wall of the bolt mounting disc 5 is in contact with the outer wall of the other flange 901. The bolt body 10 and the nut body 11 are then assembled. Afterwards, the fourth telescopic member 701 removes the end of the mating block 704 from the mating groove 503. The second driving member 203 drives the drive gear 204 to rotate, which in turn drives the driven gear to rotate, and then drives the clamping mechanism. The cylinder 4 rotates, and by rotating the clamping cylinder 4 at a certain angle, the next mounting hole 902 is adjusted to the top of the flange 901. At the same time, the first driving component 107 drives the rotating rod 108 to rotate, adjusting the next rotating mounting column 501 to the bottom of the bolt mounting plate 5 and the next fixed mounting column 601 to the bottom of the nut mounting plate 6. Then, the end of the mating block 704 is reinserted into the mating groove 503 to perform the next set of bolt body 10 and nut body 11 combination installation. This process is repeated to install multiple sets of bolt body 10 and nut body 11 onto the two flanges 901, realizing the mating of the two steel pipes 9 connected by the flanges 901.

[0054] Example 3: See Figure 1 , Figure 5Based on Embodiment 1, a buffer assembly 8 is provided at the connection between the first telescopic member 102 and the movable seat 2. The buffer assembly 8 includes a sleeve 801, a first column 802, and an elastic member 804. One end of the sleeve 801 is installed 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 installed on one end of the first telescopic member 102, and the other end is inserted and connected to the sleeve 801 and connected to a second column 803. The outer wall of the first column 802 slides against the inner wall of the sleeve 801. The outer diameter of the second column 803 is smaller than the outer diameter of the first column 802. The elastic member 804 is sleeved on the periphery of the second column 803, with one end installed on the end of the first column 802 and the other end installed on the inner wall of the sleeve 801. The elastic member 804 provides an elastic range of movement for the connection between the movable seat 2 and the first telescopic member 102.

[0055] This embodiment provides a method for connecting steel pipes 9 via a threaded structure: Two steel pipes 9 are connected via a threaded structure, typically one end of which has an internal thread and the other end has an external thread. The end of one steel pipe 9 is rotated and installed onto the end of the other steel pipe 9 by twisting. In this embodiment, after installing the two steel pipes 9 into two clamping cylinders 4 as in Embodiment 1, one clamping cylinder 4 remains stationary while the other rotates and moves, simulating manual twisting of the steel pipes 9. This allows the end of one steel pipe 9 to be rotated and installed onto the end of the other steel pipe 9. The connection structure of the threaded steel pipes 9 is relatively fragile. When automatically installed by machine, problems such as not finding the threaded entry point or excessive rotational force causing damage to the threaded structure can easily occur. Therefore, a buffer assembly 8 is used to solve these problems. The steel pipe 9 to be rotated is installed into the clamping cylinder 4 on the movable seat 2 equipped with the buffer assembly 8. The first telescopic member 102 drives the movable seat 2 to move, aligning the ends of the two steel pipes 9. 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 structure on the two steel pipes 9 is not excessively squeezed. When connecting, if one steel pipe 9 needs to be screwed clockwise to be installed on the other steel pipe 9, the steel pipe 9 is first rotated counterclockwise by the rotating component 202. The stability of the fit between the threaded structure of the two steel pipes 9 is ensured by rotating in the opposite direction for one turn. Then, when rotating clockwise, it is not easy for the threaded connection to get stuck. After that, one steel pipe 9 is installed on the other steel pipe 9 by rotating and moving at the same time, realizing the connection between the two steel pipes 9 through the threaded structure. When installing the insert-type connecting steel pipe 9 and the steel pipe 9 connected by the flange 901, it is necessary to ensure the fit 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 easy to contact the inner wall of the sleeve 801. At this time, the elastic member 804 does not provide a buffering effect, thereby ensuring the fit between the two steel pipes 9.

[0056] It will be apparent to those skilled in the art that the present 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 its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0057] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A steel pipe splicing tool used in the construction of a waterworks, characterized in that, include: The base has a movable groove at the top center. First telescopic members are installed opposite each other on the inner walls 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 at the ends of the two second telescopic members that are close to each other. First driving members are installed on the bottom sides of the movable vertical plates that are far apart from each other. Rotating rods are rotatably connected to the bottom sides of the movable vertical plates that are 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. The second telescopic members are located directly above the movable groove. The number of movable seats is set to two and they are respectively connected to the two adjacent ends of the first telescopic members. The bottom of the movable seat is slidably connected in the movable groove. The top of the movable seat is equipped with a vertical rod and a rotating assembly. The rotating assembly is connected to the clamping cylinder and is used to drive the clamping cylinder to rotate. A collar, detachably mounted on the top of the vertical rod, is used to secure the clamping cylinder; The clamping cylinder is rotatably connected inside the collar and can rotate relative to the collar under the drive of the rotating assembly; A bolt mounting disc is installed at the end of one of the rotating rods, and a plurality of bolt bodies are evenly distributed around the circumference of the bolt mounting disc and can be detachably mounted thereon; A nut mounting plate is installed at the end of another rotating rod, and a number of nuts are evenly distributed around the circumference of the nut mounting plate and can be detachably installed. A docking assembly is installed at the bottom of the movable vertical plate corresponding to the bolt mounting plate. The docking assembly is used to install a number of bolt bodies and a number of nut bodies onto the flanges of the two steel pipes being docked.

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

3. The steel pipe splicing tool for waterworks construction according to claim 2, characterized in that, The rotating assembly includes: The second driving component is installed on the top of the movable seat; The drive gear is installed at the output end of the second drive component; An annular gear ring is installed on the outer wall of one end of the clamping cylinder, and the annular gear ring meshes with the driving gear.

4. The steel pipe splicing tool for waterworks construction according to claim 1, characterized in that, The clamping cylinder is provided with several third telescopic members evenly distributed around its circumference. One end of each third telescopic member extends into the clamping cylinder and is detachably fitted with a clamping plate. The shape and size of the clamping plate correspond to the shape and size of the steel pipe.

5. A steel pipe splicing tool for waterworks construction according to claim 4, characterized in that, A calibration rod is installed on the inner wall of one of the two clamping cylinders at their adjacent ends, and the position of the calibration rod corresponds to the position of the mounting hole on the flange at the end of the steel pipe.

6. The steel pipe splicing tool for waterworks construction according to claim 1, characterized in that, The bolt mounting plate has several rotating mounting posts evenly distributed around its edge. The rotating mounting posts can rotate on the bolt mounting plate. The end of the rotating mounting post near the nut mounting plate is provided with a first hexagonal groove, in which one end of the bolt body is installed. The other end of the rotating mounting post is provided with a mating groove.

7. A steel pipe splicing tool for waterworks construction according to claim 6, characterized in that, A plurality of fixed mounting posts are evenly distributed around the edge of the nut mounting plate. The fixed mounting posts are fixedly connected to the nut mounting plate. A second hexagonal groove is provided at the end of the fixed mounting post near the bolt mounting plate, and the nut body is installed in the second hexagonal groove.

8. A steel pipe splicing tool for waterworks construction according to claim 6, characterized in that, The docking components include: The fourth telescopic component is installed on the outer wall of the movable vertical plate on the side away from the bolt mounting plate; The mounting sleeve is attached to one end of the fourth telescopic member at the top. A screwdriver is detachably mounted on the bottom of the mounting sleeve; The docking block has one end installed at the output end of the cranking machine, and the other end can be inserted into the docking groove.

9. A steel pipe splicing 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 splicing tool for waterworks construction according to claim 1, characterized in that, A buffer assembly is provided at the connection between the first telescopic member and the movable seat, the buffer assembly comprising: The sleeve is installed at one end on the bottom outer wall of the movable seat, and has a cylindrical opening at the other end; The first column has one end installed at one end of the first telescopic member, and the other end is inserted and connected to the sleeve body and connected to the second column. The outer wall of the first column slides and fits against the inner wall of the sleeve body. The outer diameter of the second column is smaller than the outer diameter of the first column. An elastic element is sleeved around the second column, with one end installed at the end of the first column and the other end installed on the inner wall of the sleeve.

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