A special seamless round pipe connection device and method

Abstract

The present invention provides a special seamless round tube connection device and method, including: a connection assembly, a connection bracket assembly and a power assembly; the connection bracket assembly includes a bracket tube, the bracket tube is connected to symmetrical partition rings, and the symmetrical partition rings are respectively connected to circular ring shells; the connection assembly includes a symmetrical inner ring, the symmetrical inner rings are respectively connected to clamping rings, the symmetrical clamping rings and the symmetrical inner rings respectively form clamping grooves, the symmetrical inner rings respectively match the bracket tubes, and the symmetrical clamping rings are respectively connected to fixed shafts; the power assembly includes a large shaft, the large shaft is rotatably connected to the circular ring shell, and the large shaft is connected to a hexagonal auxiliary block. The present invention relates to the technical field of pipe joints, and in particular to a special seamless round tube connection device and method. In view of the deficiencies of the prior art, the present invention develops a special seamless round tube connection device and method, which realizes the rapid and stable connection of two seamless round tubes, and is convenient for subsequent disassembly and replacement.

Description

Technical Field

[0001] The invention relates to the technical field of pipe joints, and in particular to a special seamless round pipe connecting device and method. Background Art

[0002] Special seamless round tube is a seamless steel tube with special uses and performance requirements, with high strength, strong corrosion resistance, high dimensional accuracy and other characteristics. Special seamless round tube can be divided into many types, such as stainless steel seamless round tube, alloy seamless round tube, high temperature resistant seamless round tube, etc. It is widely used in the fields of petroleum, natural gas, chemical industry, electric power, machinery manufacturing and aerospace. With the continuous advancement of science and technology and the improvement of material performance requirements in various industries, the market demand for special seamless round tube will continue to increase.

[0003] Two seamless round tubes can be connected by using a pipe joint. At present, there is still a lack of a pipe joint that can realize the fast and stable connection of two seamless round tubes, which is convenient for subsequent disassembly and replacement.

[0004] Therefore, in view of the above problems, a special seamless round pipe connection device and method are proposed to solve the above problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention develops a special seamless round tube connection device and method, which can achieve fast and stable connection of two seamless round tubes, making subsequent disassembly and replacement convenient.

[0006] The technical solution to the technical problem solved by the present invention is as follows: the present invention provides a special seamless round tube connection device and method, including: a connection component, a connection bracket component and a power component; the connection bracket component includes a bracket tube, the bracket tube is connected to symmetrical partition rings, and the symmetrical partition rings are respectively connected to circular ring shells; the connection component includes a symmetrical inner ring, the symmetrical inner rings are respectively connected to clamping rings, the symmetrical clamping rings and the symmetrical inner rings respectively form clamping grooves, the symmetrical inner rings respectively match the bracket tubes, and the symmetrical clamping rings are respectively connected to fixed shafts; the power component includes a large shaft, the large shaft is rotatably connected to the circular ring shell, the large shaft is connected to a hexagonal auxiliary block, the large shaft is connected to a power rod, the two ends of the power rod are respectively connected to one end of a connecting rod, the other end of the symmetrical connecting rod is respectively rotatably connected to one end of a round rod, the symmetrical round rods respectively pass through the corresponding partition rings, the symmetrical round rods are respectively connected to mounting seats, and the symmetrical mounting seats are respectively rotatably connected to the corresponding fixed shafts. By using the connection assembly, the connection of two seamless round tubes is realized, the inner ring enters the seamless round tube, and the clamping ring clamps the outer wall of the seamless round tube to form a sealed connection, so that the seamless round tube, the inner ring and the bracket tube form a pipeline passage. By using the power assembly, the installation of the device is convenient, and by using the hexagonal auxiliary block, the device is convenient to install using tools.

[0007] As an optimization, it also includes a retaining component, which includes a driving gear, the large shaft is connected to the driving gear, the annular shell is connected to the shell, the large shaft bearing is connected to the shell, the annular shell bearing is connected to the retaining gear, the driving gear meshes with the retaining gear, the annular shell bearing is connected to the outer cylinder, the edge of the retaining gear is rotatably connected to the inner cylinder, and the outer cylinder and the inner cylinder are respectively connected to one end of the retaining spring. By using the retaining spring to cooperate with the outer cylinder and the retaining gear, it has two natural states. When it is in the first natural state, the inner rings on both sides are close to each other, which is convenient for placing the device. When installing, after overcoming the elastic effect of the retaining spring, when the retaining spring moves to another natural state position, it is convenient for installing the device. When reaching another natural state position, the retaining ring clamps the seamless round tube so that the end face of the retaining ring contacts the end of the seamless round tube.

[0008] As an optimization, it also includes a fixing component, which includes a symmetrical transmission gear and a symmetrical fixing ring. The symmetrical transmission gears are respectively connected to the housing by bearings, the symmetrical transmission gears are respectively meshed with the driving gears, the symmetrical transmission gears are respectively connected to the driving bevel gears, the housing bearings are connected to the central axes of the symmetrical driven bevel gears, the symmetrical driven bevel gears are respectively meshed with the corresponding driving bevel gears, the central axes of the symmetrical driven bevel gears are respectively connected to the turntable, the edges of the symmetrical turntables are respectively connected to power rods, the symmetrical partition rings are respectively rotatably connected to the power rings, the symmetrical power rings are respectively provided with straight grooves, and the symmetrical The power round rods are respectively arranged in the corresponding straight grooves, and the symmetrical power circular rings are respectively provided with a group of oblique cross grooves, and each oblique cross groove is respectively provided with a cross round block, and each cross round block is respectively connected to a guide tube, and each guide tube is respectively provided with a guide rod, and the end of each guide rod is respectively connected to a circular tube, and each circular tube is respectively provided with a spring and a pin, and each pin is respectively connected to one end of a corresponding spring, and the other end of each spring is respectively connected to a corresponding circular tube, and the symmetrical fixing rings are respectively connected to seamless circular tubes, and the symmetrical fixing rings are respectively provided with positioning hole blocks, and each pin matches the corresponding positioning hole block. By adopting gear meshing and bevel gear meshing, when the device is installed, the pin follows the retaining ring to move to both sides and move downward at the same time, and when the end face of the retaining ring contacts the end of the seamless circular tube, the pin is inserted into the positioning hole on the positioning hole block to achieve a stable connection of the device.

[0009] As an optimization, the symmetrical snap rings are respectively connected to a group of guide blocks, each guide rod is respectively connected to a guide short rod, and each guide short rod is respectively arranged in the corresponding guide block. By arranging the guide short rod in the guide block, the position matching of the holding pin and the positioning hole block is achieved.

[0010] As an optimization, each of the round tubes is threadedly connected with a bolt, and each of the pins is provided with a pull-out hole and a mounting hole, and the bolt matches the pull-out hole and the mounting hole. By adopting the mounting hole, after the device is installed in place, the bolt is screwed in, and the connection is more stable. By providing the pull-out hole, when replacing or disassembling the device, the pin is moved out of the positioning hole block, and the bolt is screwed into the pull-out hole to keep the pin out of the positioning hole block, so that the device can be easily disassembled.

[0011] As an optimization, each of the positioning hole blocks is connected to a circular block, and each of the pins matches the corresponding circular block. By providing the circular block, when the pin is inserted into the positioning hole of the positioning hole block, it contacts the circular block smoothly, so that the spring is compressed, which facilitates the subsequent entry into the positioning hole of the positioning hole block.

[0012] As an optimization, one end of the two inner rings is respectively provided with a first sealing groove corresponding to the seamless round tube, and a first sealing ring is respectively installed in the symmetrical first sealing grooves, and the other end of the two inner rings is respectively provided with a group of second sealing grooves corresponding to the support tube, and a second sealing ring is respectively installed in each of the second sealing grooves. By adopting the first sealing groove, the first sealing ring, the second sealing groove and the second sealing ring, the sealing connection between the device and the seamless round tube is conveniently realized.

[0013] As an optimization, the clamping ring is provided with an inner groove, the fixing ring is provided with an outer groove, the inner groove and the outer groove match a third sealing ring, and the third sealing ring is tapered toward the outer groove. By adopting the third sealing ring, a sealed connection between the fixing ring and the clamping ring is achieved.

[0014] A connection method for a special seamless round pipe connection device comprises the following steps:

[0015] S1: placing the device between two seamless round tubes, and clamping one of the slots on one of the seamless round tubes;

[0016] S2: Using a tool to clamp the hexagonal auxiliary block, rotating the hexagonal auxiliary block, so that the retaining spring is disengaged from a natural state position, and under the elastic action of the retaining spring, the clamping ring and the inner ring at the other end are moved, so that the other clamping groove is clamped on the other seamless round tube;

[0017] S3: rotating the tool to make the clamping rings on both sides contact the seamless round tube respectively, so that the retaining spring is in another natural state position;

[0018] S4: the pin is inserted into the positioning hole block;

[0019] S5: Tighten the bolt into the mounting hole.

[0020] The effects provided in the content of the invention are only the effects of the embodiments, rather than all the effects of the invention. The above technical solution has the following advantages or beneficial effects:

[0021] 1. This device uses a connection component to connect two seamless round tubes. The inner ring enters the seamless round tube, and the clamping ring clamps the outer wall of the seamless round tube. The sealing groove and the sealing ring form a sealed connection, so that the seamless round tube, the inner ring and the bracket tube form a pipeline passage. By using a power component and a hexagonal auxiliary block, it is convenient to use tools to install this device, so as to achieve a quick connection between two seamless round tubes.

[0022] 2. The device has two natural states by using a retaining spring in conjunction with an outer cylinder and a retaining gear. When in the first natural state, the inner rings on both sides are close to each other, which facilitates the placement of the device. During installation, after overcoming the elastic effect of the retaining spring, the retaining spring moves to another natural state position, which facilitates the installation of the device. When reaching another natural state position, the retaining clamping ring clamps the seamless round tube, so that the end face of the clamping ring contacts the end of the seamless round tube.

[0023] 3. This device adopts gear meshing and bevel gear meshing to achieve that when the device is installed, the pin moves to both sides and downwards with the snap ring. When the end face of the snap ring contacts the end of the seamless round tube, the pin is inserted into the positioning hole on the positioning hole block to achieve a stable connection of the device. By adopting the mounting hole, after the device is installed in place, the bolt is screwed in, and the connection is more stable. By setting the extraction hole, when replacing or disassembling the device, the pin is moved out of the positioning hole block, and the bolt is screwed into the extraction hole to keep the pin out of the positioning hole block, so that the device can be easily removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0025] Figure 1 It is a schematic diagram of the initial installation state of the present invention.

[0026] Figure 2 It is a schematic diagram of the partial three-dimensional structure of the connecting assembly and the power assembly of the present invention.

[0027] Figure 3 It is a schematic diagram of the position of the first sealing groove of the present invention.

[0028] Figure 4 It is a schematic diagram of a partial three-dimensional structure of the retaining assembly of the present invention.

[0029] Figure 5 It is a partial installation schematic diagram of the present invention.

[0030] Figure 6 It is a schematic diagram of the partial three-dimensional structure of the retaining assembly and the fixing assembly of the present invention.

[0031] Figure 7 It is a schematic diagram of a partially cutaway three-dimensional structure of a fixing assembly of the present invention.

[0032] Figure 8 The local three-dimensional structure of the fixing assembly of the present invention is shown in FIG. Figure 1 .

[0033] Fig. 9 The local three-dimensional structure of the fixing assembly of the present invention is shown in FIG. Figure 2 .

[0034] Fig.10 The local three-dimensional structure of the fixing assembly of the present invention is shown in FIG. Figure 3 .

[0035] Fig.11 For the present invention Fig.10 A partial enlarged view of middle A.

[0036] Fig.12 It is a schematic diagram of a partial three-dimensional structure of a connecting assembly of the present invention.

[0037] Fig.13 It is a schematic diagram of the position of the gear and the retaining spring of the present invention.

[0038] Fig.14 It is a schematic diagram of the three-dimensional structure of the present invention.

[0039] Fig.15 It is a schematic diagram of the local three-dimensional structure of the present invention.

[0040] In the figure:

[0041] 1. Connecting assembly, 11. Clamping ring, 12. Inner ring, 13. Second sealing groove, 14. Second sealing ring, 15. First sealing groove, 16. First sealing ring, 17. Clamping groove, 18. Fixed shaft, 19. Guide block, 110. Inner groove, 111. Third sealing ring;

[0042] 2. Power assembly, 21. Hexagonal auxiliary block, 22. Main shaft, 23. Power rod, 24. Connecting rod, 25. Mounting seat, 26. Round rod;

[0043] 3. Connecting bracket assembly, 31. annular shell, 32. partition ring, 33. bracket tube, 34. shell;

[0044] 4. holding assembly, 41. driving gear, 42. holding gear, 43. inner cylinder, 44. holding spring, 45. outer cylinder;

[0045] 5. Fixing assembly, 51. Driven bevel gear, 52. Driving bevel gear, 53. Transmission gear, 54. Power ring, 55. Guide tube, 56. Guide short rod, 57. Guide rod, 58. Round tube, 59. Oblique cross groove, 510. Straight groove, 511. Turntable, 512. Power round rod, 513. Cross round block, 514. Bolt, 515. Pin, 516. Spring, 517. Extraction hole, 518. Mounting hole, 519. Fixing ring, 520. Positioning hole block, 521. Round block, 522. Outer groove;

[0046] 6. Seamless round tube. DETAILED DESCRIPTION

[0047] In order to clearly illustrate the technical features of the present solution, the present invention is described in detail below through specific implementation methods and in combination with the accompanying drawings. The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. In addition, the present invention may repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. It should be noted that the components illustrated in the accompanying drawings are not necessarily drawn to scale. The present invention omits the description of known components and processing technologies and processes to avoid unnecessary limitations on the present invention. The orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] like Figures 1 to 15As shown, embodiment 1: a special seamless round tube connection device and method, comprising: a connection component 1, a connection bracket component 3 and a power component 2; the connection bracket component 3 comprises a bracket tube 33, the bracket tube 33 is connected to a symmetrical partition ring 32, and the symmetrical partition rings 32 are respectively connected to a circular ring shell 31; the connection component 1 comprises a symmetrical inner ring 12, the symmetrical inner ring 12 is respectively connected to a clamping ring 11, the symmetrical clamping ring 11 and the symmetrical inner ring 12 respectively form a clamping groove 17, the symmetrical inner ring 12 respectively matches the bracket tube 33, and the symmetrical clamping ring 11 are respectively connected to the fixed shaft 18; the power assembly 2 includes a large shaft 22, the large shaft 22 is rotatably connected to the annular shell 31, the large shaft 22 is connected to the hexagonal auxiliary block 21, the large shaft 22 is connected to the power rod 23, the two ends of the power rod 23 are respectively connected to one end of the connecting rod 24, the other end of the symmetrical connecting rod 24 is respectively rotatably connected to one end of the round rod 26, the symmetrical round rods 26 respectively pass through the corresponding partition rings 32, the symmetrical round rods 26 are respectively connected to the mounting seats 25, and the symmetrical mounting seats 25 are respectively rotatably connected to the corresponding fixed shaft 18. By adopting the connection assembly 1, the connection of the two seamless round tubes 6 is realized, the inner ring 12 enters the seamless round tube 6, the clamping ring 11 clamps the outer wall of the seamless round tube 6 to form a sealed connection, so that the seamless round tube 6, the inner ring 12 and the bracket tube 33 form a pipeline passage. By adopting the power assembly 2, it is convenient to install the device, and by adopting the hexagonal auxiliary block 21, it is convenient to use tools to install the device.

[0049] One end of the two inner rings 12 is respectively provided with a first sealing groove 15 corresponding to the seamless round tube 6, and a first sealing ring 16 is respectively installed in the symmetrical first sealing groove 15. The other end of the two inner rings 12 is respectively provided with a group of second sealing grooves 13 corresponding to the bracket tube 33, and a second sealing ring 14 is respectively installed in each second sealing groove 13. By adopting the first sealing groove 15, the first sealing ring 16, the second sealing groove 13 and the second sealing ring 14, the sealing connection between the device and the seamless round tube 6 is conveniently realized.

[0050] The workflow of this embodiment is:

[0051] The device is placed between two seamless round tubes 6, and a slot 17 is clamped on one seamless round tube 6. Use a tool to clamp the hexagonal auxiliary block 21, rotate the hexagonal auxiliary block 21, drive the large shaft 22 to rotate, the large shaft 22 drives the power rod 23 to swing, the power rod 23 drives the connecting rod 24 to swing, the connecting rod 24 drives the round rod 26 to move, the round rod 26 drives the mounting seat 25 to move, the mounting seat 25 drives the fixed shaft 18 to move, the fixed shaft 18 drives the clamping ring 11 and the inner ring 12 to move, so that the clamping rings 11 on both sides contact the seamless round tube 6 respectively, and the installation of the device is realized.

[0052] Embodiment 2: This embodiment is further elaborated on the basis of embodiment 1, and also includes a retaining component 4, the retaining component 4 includes a driving gear 41, the large shaft 22 is connected to the driving gear 41, the annular shell 31 is connected to the shell 34, the large shaft 22 is connected to the shell 34 by a bearing, the annular shell 31 is connected to the retaining gear 42 by a bearing, the driving gear 41 meshes with the retaining gear 42, the annular shell 31 is connected to the outer cylinder 45 by a bearing, the edge of the retaining gear 42 is rotatably connected to the inner cylinder 43, and the outer cylinder 45 and the inner cylinder 43 are respectively connected to one end of the retaining spring 44. By adopting the retaining spring 44 to cooperate with the outer cylinder 45 and the retaining gear 42, there are two natural states. When in the first natural state, the inner rings 12 on both sides are close to each other, which is convenient for the placement of the device. During installation, after overcoming the elastic effect of the retaining spring 44, the retaining spring 44 moves to another natural state position, which is convenient for the installation of the device. When reaching another natural state position, the retaining clamp 11 clamps the seamless round tube 6 so that the end face of the clamp 11 contacts the end of the seamless round tube 6.

[0053] The workflow of this embodiment is:

[0054] When the main shaft 22 rotates, it drives the driving gear 41 to rotate, the driving gear 41 drives the retaining gear 42 to rotate, the retaining gear 42 drives the inner cylinder 43 to swing, the inner cylinder 43 drives the retaining spring 44 to swing and stretch the retaining spring 44 at the same time, the retaining spring 44 drives the outer cylinder 45 to rotate, so that the retaining spring 44 is separated from a natural state position and quickly restored, which is convenient for the rapid installation of the device, and the hexagonal auxiliary block 21 is continuously rotated using a tool to realize that the retaining rings 11 on both sides contact the seamless round tube 6 respectively, so that the retaining spring 44 is in another natural state position.

[0055] Embodiment 3: This embodiment is further elaborated on the basis of embodiment 2, and also includes a fixing component 5, wherein the fixing component 5 includes a symmetrical transmission gear 53 and a symmetrical fixing ring 519, wherein the symmetrical transmission gear 53 is respectively connected to the housing 34 by bearings, wherein the symmetrical transmission gear 53 is respectively engaged with the driving gear 41, wherein the symmetrical transmission gear 53 is respectively connected to the driving bevel gear 52, wherein the housing 34 is respectively connected to the central axis of the symmetrical driven bevel gear 51, wherein the symmetrical driven bevel gear 51 is respectively engaged with the corresponding driving bevel gear 52, wherein the central axis of the symmetrical driven bevel gear 51 is respectively connected to a rotating disk 511, wherein the edges of the symmetrical rotating disk 511 are respectively connected to power round rods 512, wherein the symmetrical partition rings 32 are respectively rotatably connected to the power circular ring 54, wherein the symmetrical power circular rings 54 are respectively provided with straight grooves 510, wherein the symmetrical The power round rod 512 is respectively arranged in the corresponding straight groove 510, and the symmetrical power ring 54 is respectively provided with a group of oblique cross grooves 59, and each oblique cross groove 59 is respectively provided with a cross round block 513, and each cross round block 513 is respectively connected to the guide tube 55, and each guide tube 55 is respectively provided with a guide rod 57, and the end of each guide rod 57 is respectively connected to the round tube 58, and each round tube 58 is respectively provided with a spring 516 and a pin 515, and each pin 515 is respectively connected to one end of the corresponding spring 516, and the other end of each spring 516 is respectively connected to the corresponding round tube 58, and the symmetrical fixing rings 519 are respectively connected to the seamless round tube 6, and the symmetrical fixing rings 519 are respectively provided with positioning hole blocks 520, and each pin 515 matches the corresponding positioning hole block 520. The fixing ring 519 is connected to the corresponding positioning hole block 520. By adopting gear meshing and bevel gear meshing, when the device is installed, the pin 515 follows the retaining ring 11 to move to both sides and move downward at the same time. When the circular end face of the retaining ring 11 contacts the end of the seamless circular tube 6, the pin 515 is inserted into the positioning hole on the positioning hole block 520 to achieve stable connection of the device.

[0056] The symmetrical snap rings 11 are respectively connected to a group of guide blocks 19, each guide rod 57 is respectively connected to a guide short rod 56, and each guide short rod 56 is respectively arranged in the corresponding guide block 19. By arranging the guide short rod 56 in the guide block 19, the position matching of the holding pin 515 and the positioning hole block 520 is achieved.

[0057] Each of the round tubes 58 is respectively threadedly connected with a bolt 514, and each of the pins 515 is respectively provided with a pull-out hole 517 and a mounting hole 518, and the bolts 514 match the pull-out holes 517 and the mounting holes 518. By adopting the mounting holes 518, after the device is installed in place, the bolts 514 are screwed in, and the connection is more stable. By providing the pull-out holes 517, when replacing or disassembling the device, the pins 515 are moved out of the positioning hole block 520, and the bolts 514 are screwed into the pull-out holes 517, and the pins 515 are kept out of the positioning hole block 520, so that the device can be easily disassembled.

[0058] Each of the positioning hole blocks 520 is respectively connected to the circular block 521, and each of the pins 515 is respectively matched with the corresponding circular block 521. By providing the circular block 521, when the pin 515 is inserted into the positioning hole of the positioning hole block 520, it smoothly contacts the circular block 521, so that the spring 516 is compressed, which facilitates the subsequent entry into the positioning hole of the positioning hole block 520.

[0059] The clamping ring 11 is provided with an inner groove 110, and the fixing ring 519 is provided with an outer groove 522. The inner groove 110 and the outer groove 522 match the third sealing ring 111, and the third sealing ring 111 is tapered toward the outer groove 522. By using the third sealing ring 111, a sealed connection between the fixing ring 519 and the clamping ring 11 is achieved.

[0060] The workflow of this embodiment is:

[0061] When the driving gear 41 rotates, it drives the transmission gear 53 and the driving bevel gear 52 to rotate, the driving bevel gear 52 drives the driven bevel gear 51 and the turntable 511 to rotate, the turntable 511 drives the power round rod 512 to swing along the straight groove 510, the power round rod 512 drives the power ring 54 to rotate, the power ring 54 drives the cross block 513 to move along the oblique cross groove 59, the cross block 513 drives the guide tube 55, the guide rod 57, the round tube 58, the bolt 514, the spring 516 and the pin 515 to move, the guide rod 57 drives the guide short rod 56 to move along the guide block 19, and the retaining ring 11 drives the guide block 19 to move The guide block 19 drives the guide short rod 56 to move, and the guide short rod 56 drives the guide rod 57 to move along the guide tube 55. The guide rod 57 drives the round tube 58, the bolt 514, the spring 516 and the pin 515 to move, so that the pin 515 contacts the round block 521, and the pin 515 moves relatively along the round tube 58, so that the spring 516 is compressed. After the pin 515 contacts the positioning hole block 520, the spring 516 continues to be compressed. When the pin 515 matches the hole of the positioning hole block 520, the spring 516 recovers, so that the pin 515 is inserted into the positioning hole block 520, and the bolt 514 is tightened into the mounting hole 518.

[0062] When disassembling the device, first move the pin 515 to make the pin 515 highly round block 521, and tighten the bolt 514 into the extraction hole 517. Use a tool to reversely rotate the hexagonal auxiliary block 21 to take out the device.

[0063] A connection method for a special seamless round pipe connection device comprises the following steps:

[0064] S1: placing the device between the two seamless round tubes 6, and clamping one of the slots 17 on one of the seamless round tubes 6;

[0065] S2: Use a tool to clamp the hexagonal auxiliary block 21, rotate the hexagonal auxiliary block 21, so that the retaining spring 44 is disengaged from a natural state position, and under the elastic action of the retaining spring 44, the clamping ring 11 and the inner ring 12 at the other end are moved, so that the other clamping groove 17 is clamped on the other seamless round tube 6;

[0066] S3: Rotate the tool to make the clamping rings 11 on both sides contact the seamless round tube 6 respectively, so that the retaining spring 44 is in another natural state position;

[0067] S4: The pin 515 is inserted into the positioning hole block 520;

[0068] S5: Tighten the bolt 514 into the mounting hole 518 .

[0069] The device realizes the connection of two seamless round tubes 6 by using the connection assembly 1, the inner ring 12 enters the seamless round tube 6, the clamping ring 11 clamps the outer wall of the seamless round tube 6, and a sealing connection is formed by using a sealing groove and a sealing ring, so that the seamless round tube 6, the inner ring 12 and the bracket tube 33 form a pipeline passage. By using the power assembly 2 and the hexagonal auxiliary block 21, it is convenient to use tools to install the device, and realize the rapid connection of two seamless round tubes 6.

[0070] The device adopts a retaining spring 44 that cooperates with the outer cylinder 45 and the retaining gear 42 to enable it to have two natural states. When in the first natural state, the inner rings 12 on both sides are close to each other, which facilitates the placement of the device. During installation, after overcoming the elastic effect of the retaining spring 44, the retaining spring 44 moves to another natural state position, which facilitates the installation of the device. When reaching the other natural state position, the retaining clamp 11 clamps the seamless round tube 6 so that the end face of the clamp 11 contacts the end of the seamless round tube 6.

[0071] The device adopts gear meshing and bevel gear meshing to achieve that when the device is installed, the pin 515 moves to both sides and downwards with the snap ring 11. When the end face of the snap ring 11 contacts the end of the seamless round tube 6, the pin 515 is inserted into the positioning hole on the positioning hole block 520 to achieve a stable connection of the device. By adopting the mounting hole 518, after the device is installed in place, the bolt 514 is screwed in, and the connection is more stable. By providing the extraction hole 517, when replacing or disassembling the device, the pin 515 is moved out of the positioning hole block 520, and the bolt 514 is screwed into the extraction hole 517 to keep the pin 515 out of the positioning hole block 520, so as to facilitate the removal of the device.

[0072] Although the above describes the specific implementation mode of the invention in conjunction with the drawings, it is not intended to limit the scope of protection of the invention. Based on the technical solution of the present invention, various modifications or variations that can be made by those skilled in the art without creative work are still within the scope of protection of the present invention.

Claims

1. A special seamless round pipe connection device, characterized in that: include: A connecting assembly (1), a connecting bracket assembly (3) and a power assembly (2); The connecting bracket assembly (3) comprises a bracket tube (33), the bracket tube (33) being connected to symmetrical baffle rings (32), and the symmetrical baffle rings (32) being respectively connected to the annular shells (31); The connecting assembly (1) comprises symmetrical inner rings (12), the symmetrical inner rings (12) are respectively connected to the snap rings (11), the symmetrical snap rings (11) and the symmetrical inner rings (12) respectively form snap grooves (17), the symmetrical inner rings (12) respectively match the bracket tubes (33), and the symmetrical snap rings (11) are respectively connected to the fixed shafts (18); The power assembly (2) comprises a large shaft (22), the large shaft (22) being rotatably connected to the annular shell (31), the large shaft (22) being connected to the hexagonal auxiliary block (21), the large shaft (22) being connected to a power rod (23), the two ends of the power rod (23) being respectively connected to one end of a connecting rod (24), the other ends of the symmetrical connecting rods (24) being respectively rotatably connected to one end of a round rod (26), the symmetrical round rods (26) respectively passing through corresponding partition rings (32), the symmetrical round rods (26) being respectively connected to mounting seats (25), and the symmetrical mounting seats (25) being respectively rotatably connected to corresponding fixed shafts (18); The device also comprises a retaining assembly (4), wherein the retaining assembly (4) comprises a driving gear (41), the large shaft (22) is connected to the driving gear (41), the annular shell (31) is connected to the shell (34), the large shaft (22) is connected to the shell (34) by a bearing, the annular shell (31) is connected to the retaining gear (42) by a bearing, the driving gear (41) meshes with the retaining gear (42), the annular shell (31) is connected to an outer cylinder (45) by a bearing, the retaining gear (42) is rotatably connected to an inner cylinder (43) at its edge, and the outer cylinder (45) and the inner cylinder (43) are respectively connected to one end of a retaining spring (44); The invention also comprises a fixing assembly (5), wherein the fixing assembly (5) comprises symmetrical transmission gears (53) and symmetrical fixing rings (519), wherein the symmetrical transmission gears (53) are respectively connected to the housing (34) by bearings, the symmetrical transmission gears (53) are respectively meshed with the driving gears (41), the symmetrical transmission gears (53) are respectively connected to driving bevel gears (52), the housing (34) is connected to the central axes of symmetrical driven bevel gears (51), the symmetrical driven bevel gears (51) are respectively meshed with the corresponding driving bevel gears (52), the central axes of the symmetrical driven bevel gears (51) are respectively connected to rotating disks (511), the edges of the symmetrical rotating disks (511) are respectively connected to power round rods (512), the symmetrical partition rings (32) are respectively rotatably connected to the power circular rings (54), the symmetrical power circular rings (54) are respectively provided with straight grooves (510), and the symmetrical power circular rods (512) are respectively provided with In the corresponding straight groove (510), the symmetrical power circular rings (54) are respectively provided with a group of oblique cross grooves (59), each of the oblique cross grooves (59) is respectively provided with a cross round block (513), each of the cross round blocks (513) is respectively connected to a guide tube (55), each of the guide tubes (55) is respectively provided with a guide rod (57), the end of each guide rod (57) is respectively connected to a circular tube (58), each of the circular tubes (58) is respectively provided with a spring (516) and a pin (515), each of the pins (515) is respectively connected to one end of a corresponding spring (516), and the other end of each of the springs (516) is respectively connected to a corresponding circular tube (58), the symmetrical fixing rings (519) are respectively connected to seamless circular tubes (6), the symmetrical fixing rings (519) are respectively provided with a positioning hole block (520), and each of the pins (515) matches the corresponding positioning hole block (520).

2. A special seamless round pipe connecting device according to claim 1, characterized in that: The symmetrical clamping rings (11) are respectively connected to a group of guide blocks (19), each guide rod (57) is respectively connected to a guide short rod (56), and each guide short rod (56) is respectively arranged in a corresponding guide block (19).

3. A special seamless round pipe connecting device according to claim 2, characterized in that: Each of the round tubes (58) is respectively threadedly connected to a bolt (514), and each of the pins (515) is respectively provided with a withdrawal hole (517) and a mounting hole (518), and the bolt (514) matches the withdrawal hole (517) and the mounting hole (518).

4. A special seamless round pipe connecting device according to claim 1, characterized in that: Each of the positioning hole blocks (520) is respectively connected to a circular block (521), and each of the pins (515) is respectively matched with a corresponding circular block (521).

5. The connection method of a special seamless round pipe connection device according to claim 3 is characterized in that: The following steps are involved: S1: placing the device between two seamless round tubes (6), and clamping one of the clamping grooves (17) on one of the seamless round tubes (6); S2: Using a tool to clamp the hexagonal auxiliary block (21), rotating the hexagonal auxiliary block (21), so that the retaining spring (44) is disengaged from a natural state position, and under the elastic action of the retaining spring (44), the clamping ring (11) and the inner ring (12) at the other end are moved, so that the other clamping groove (17) is clamped on the other seamless round tube (6); S3: rotating the tool so that the clamping rings (11) on both sides contact the seamless round tube (6) respectively, so that the retaining spring (44) is in another natural state position; S4: the pin (515) is inserted into the positioning hole block (520); S5: Tighten the bolt (514) into the mounting hole (518).

Images