Internal assembling machine tool

Abstract

The utility model relates to the technical field of pipeline installation, in particular to an inner assembly machine tool which comprises two annular plates which are oppositely arranged. And each bridge plate is arranged between the two annular plates, and the bridge plates are evenly distributed in the circumferential direction of the two annular plates. Each bridge plate is provided with two threaded through holes in the radial direction of the annular plate, and the forming positions of the two threaded through holes are distributed in the length direction of the bridge plate. And each threaded rod is in threaded connection with the interior of the corresponding threaded through hole. And each foot boot is arranged at one end, far away from the ring center of the ring plate, of the corresponding threaded rod. The threaded through holes distributed in the bridge plate in the radial direction of the annular plate and in the length direction of the bridge plate are matched with the threaded rods and the foot boots, so that pipeline alignment is achieved, and overall operation is simple.

Description

Technical Field

[0001] This application relates to the field of pipeline installation technology, and more specifically, to an internal assembly tool. Background Technology

[0002] In the construction process of long-distance oil and gas pipelines, pipeline welding is a crucial step in ensuring pipeline integrity and transportation safety. The quality of welding directly affects the stability of subsequent pipeline operation. Poor welding quality may lead to oil and gas leaks, causing not only serious resource waste and environmental pollution, but also threatening the lives of people in the vicinity. Therefore, before welding operations, the pipeline must be precisely aligned to ensure that the concentricity and misalignment of the pipe ends are controlled within a very small error range, laying a solid foundation for high-quality welding.

[0003] However, the internal assembly equipment used in actual oil and gas pipeline construction is currently quite large, making transportation and on-site operation extremely inconvenient. In confined construction sites, moving and positioning large machinery is extremely difficult, requiring significant manpower and time for deployment, severely impacting construction progress. Furthermore, the complex structure and cumbersome operating procedures of this equipment often necessitate operation by specialized technicians, placing high demands on the skills of construction workers. Workers must not only be familiar with the various functions and operating procedures of the equipment but also possess troubleshooting abilities, undoubtedly increasing the difficulty and complexity of the construction process. Utility Model Content

[0004] This application aims to provide an internal pairing device that solves the problems of complex structure and cumbersome operation steps of internal pairing devices.

[0005] This application provides an internal assembly device, including:

[0006] Two ring plates, the two ring plates being arranged opposite to each other;

[0007] Multiple bridge plates are disposed between two ring plates and are evenly distributed along the circumferential direction of the two ring plates; each bridge plate has two threaded through holes along the radial direction of the ring plates and the positions of the two threaded through holes are distributed along the length direction of the bridge plate.

[0008] Multiple threaded rods, each of which is threadedly connected to a specific threaded through hole;

[0009] Multiple boots, each of which is disposed at the end of the threaded rod away from the center of the ring plate.

[0010] Optionally, the internal assembly tool further includes:

[0011] Two sealing ring plates are respectively sleeved on two ring plates, and the diameter of the sealing ring plate is larger than the diameter of the ring plate;

[0012] Multiple sealing cover plates are respectively disposed between the bridge plates, and the sealing cover plates are respectively sealed to two bridge plates and two ring plates to form a sealed cavity between the two ring plates.

[0013] Optionally, multiple connecting pipes extending into the sealed cavity are provided through the two ring plates.

[0014] Optionally, the connecting pipe includes: a pipe body and a connector;

[0015] The tube extends through the ring plate, and the portion of the tube inside the sealed cavity is bent perpendicularly along the length direction of the tube.

[0016] The connector is located at the end of the tube body away from the sealed cavity.

[0017] Optionally, the boot includes:

[0018] A connector, which is rotatably sleeved on the threaded rod;

[0019] A base plate is disposed at the end of the connector away from the threaded rod.

[0020] A contact plate is disposed at the end of the base plate away from the connector, and the contact plate is detachably connected to the base plate.

[0021] Optionally, the two ring plates include: a first ring plate and a second ring plate;

[0022] Two traveling wheel assemblies and one elastic traveling wheel assembly are provided at equal intervals on the side of the first ring plate away from the second ring plate;

[0023] Both the walking wheel assembly and the elastic walking wheel assembly are in contact with the inner wall of the pipe, used to support the inner pair of tools inside the pipe, or to drive the inner pair of tools to move inside the pipe;

[0024] The elastic walking wheel assembly can extend and retract in the radial direction of the ring plate to adapt to different pipe inner diameters.

[0025] Optionally, the walking wheel assembly includes:

[0026] The first bracket is welded to the first annular plate;

[0027] Two first traveling wheels are rotatably mounted in the first bracket;

[0028] The screw is mounted on the first bracket;

[0029] The friction plate is slidably sleeved on the screw, and the friction plate is in contact with the first traveling wheel;

[0030] A nut is threaded onto the screw, and the nut is located on the side of the friction plate away from the first traveling wheel. A first spring is sleeved between the nut and the friction plate, and the two ends of the first spring abut against the friction plate and the nut, respectively.

[0031] Optionally, the resilient walking wheel assembly includes:

[0032] The second bracket passes through the annular space between the first ring plate and the second ring plate, and the second bracket is hinged to the first ring plate via a connecting plate;

[0033] A second spring is provided on one end of the second bracket near the second ring plate, and a pressure plate is provided on the other end of the second spring away from the second bracket. The pressure plate is fixedly connected to the second ring plate.

[0034] The second bracket has a triangular bracket hinged to the end away from the second spring, and two second traveling wheels are rotatably mounted on the triangular bracket.

[0035] Optionally, the second ring plate has a plurality of equally spaced guide components on the side away from the first ring plate;

[0036] The boot component includes:

[0037] The fourth bracket is fixedly connected to the second ring plate;

[0038] Two guide wheels are rotatably mounted in the fourth bracket.

[0039] Optionally, the fourth bracket is inclined inward toward the ring of the second ring plate.

[0040] Beneficial effects:

[0041] By using threaded through holes distributed radially along the ring plate and along its own length on the bridge plate, in conjunction with threaded rods and foot shoes, fine adjustment can be made for pipe end misalignment. During construction, rotating the threaded rod drives the foot shoes to accurately push against the inner wall of the pipe, achieving precise alignment. This meets the stringent requirements for concentricity and misalignment of pipe ends in high-quality welding, laying a good foundation for subsequent welding, and is simple to operate.

[0042] The sealed cavity formed by the sealing ring plate and the sealing cover plate, combined with the filling of argon gas for back gas protection, effectively isolates oxygen, reduces the risk of incomplete fusion and oxidation defects in the welded joint, significantly improves the quality and strength of the welded joint, and ensures the safety and stability of the pipeline during long-term use.

[0043] The traveling wheel assembly and the flexible traveling wheel assembly allow the equipment to move independently within the pipeline. The equipment can adapt to pipes of different diameters, eliminating the need for frequent equipment changes and reducing construction and time costs. The combined use of the traveling wheel assembly and the flexible traveling wheel assembly makes the equipment move flexibly within the pipeline, facilitating operation by construction workers, improving construction efficiency, and reducing labor intensity. Attached Figure Description

[0044] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 This is a schematic diagram of the structure of an internal assembly tool according to an embodiment of this application;

[0046] Figure 2 This is a schematic diagram of the structure of an inner assembly ring plate of a tool according to an embodiment of this application;

[0047] Figure 3 This is a schematic diagram of the structure of a bridge plate for an internal assembly of a machine according to an embodiment of this application;

[0048] Figure 4 This is a schematic diagram of the structure of a threaded rod of an internal assembly tool according to an embodiment of this application;

[0049] Figure 5 This is a schematic diagram of the structure of the foot boot of an internal assembly of a machine according to an embodiment of this application;

[0050] Figure 6 This is a schematic diagram of the structure of a sealing ring plate for an internal assembly of a machine according to an embodiment of this application;

[0051] Figure 7 This is a schematic diagram of the structure of an internal assembly sealing cover for a machine according to an embodiment of this application;

[0052] Figure 8 This is a schematic diagram of the structure of a connecting pipe between an internal assembly and a machine according to an embodiment of this application;

[0053] Figure 9This is a schematic diagram of the structure of the walking wheel assembly of an internal assembly of a machine according to an embodiment of this application;

[0054] Figure 10 This is a schematic diagram of the structure of an elastic walking wheel assembly for an internally assembled machine according to an embodiment of this application;

[0055] Figure 11 This is a schematic diagram of the structure of an internal guide assembly for a machine according to an embodiment of this application;

[0056] Explanation of reference numerals in the attached drawings: Ring plate 1, First ring plate 11, Second ring plate 12, Bridge plate 2, Threaded through hole 21, Threaded rod 3, Foot shoe 4, Connector 41, Base plate 42, Contact plate 43, Sealing ring plate 5, Sealing cover plate 6, Connecting pipe 7, Pipe body 71, Connector 72, Walking wheel assembly 8, First bracket 81, First walking wheel 82, Screw 83, Friction plate 84, Nut 85, First spring 86, Elastic walking wheel assembly 9, Second bracket 91, Connecting plate 92, Second spring 93, Pressure plate 94, Triangular bracket 95, Second walking wheel 96, Guide assembly 10, Fourth bracket 101, Guide wheel 102. Detailed Implementation

[0057] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0058] This application provides an internal assembly device, including:

[0059] Two ring plates 1 are arranged opposite to each other;

[0060] Multiple bridge plates 2 are arranged between two ring plates 1, and each bridge plate 2 is evenly distributed along the circumferential direction of the two ring plates 1; each bridge plate 2 has two threaded through holes 21 opened along the radial direction of the ring plate 1, and the opening positions of the two threaded through holes 21 are distributed along the length direction of the bridge plate 2.

[0061] Multiple threaded rods 3 are threadedly connected to various threaded through holes 21;

[0062] Multiple foot boots 4 are provided, each foot boot 4 being located at the end of the threaded rod 3 away from the center of the ring plate 1.

[0063] Two opposing ring plates 1 form the main frame foundation of the internal assembly of the tool. Multiple bridge plates 2 are evenly distributed between them, together forming a stable spatial structure. The ring plates 1 provide the basic shape and layout for the entire tool, allowing other components such as threaded rods 3 and foot boots 4 to have mounting and support positions, ensuring that the tool can maintain a stable form in complex pipeline environments and will not easily deform or be damaged.

[0064] Multiple bridge plates 2 are evenly distributed between two oppositely arranged ring plates 1, firmly connecting the two ring plates 1 to form a high-strength rigid skeleton structure. This structural design enhances the stability and integrity of the entire internal assembly, enabling it to maintain a reliable form in the complex environment inside the pipeline, providing a solid foundation for subsequent operations. In practical applications, whether operating in large-diameter or small-diameter pipelines, the skeleton formed by the bridge plates 2 and ring plates 1 can effectively resist external forces, ensuring the normal operation of the machine. Each bridge plate 2 has two threaded through holes 21 along the radial direction of the ring plate 1, which are used to install threaded rods 3.

[0065] The threaded rod 3 connects the bridge plate 2 and the foot shoe 4. During operation, it bears the pressure from the pipeline and transmits it to the bridge plate 2 and the ring plate 1. Multiple threaded rods 3 and foot shoes 4 work together to form multiple support points on the inner wall of the pipeline, evenly supporting the entire internal assembly tool and pipeline. By rotating the threaded rod 3, the operator can precisely adjust its extension length, thereby adjusting the position of the foot shoe 4 installed at the end of the threaded rod 3. During pipeline assembly, based on the actual misalignment of the pipe openings, the threaded rods 3 and foot shoes 4 at different positions on the bridge plate 2 are used for fine-tuning, pushing the pipeline to move and achieving precise alignment, effectively ensuring the accuracy of pipeline assembly and meeting the requirements of high-quality welding.

[0066] The two threaded through holes 21 are positioned along the length of the bridge plate 2, with a certain distance between their diameters. During construction, the length of the bridge plate 2 is the same as the length of the pipe. This allows the threaded rods 3 and the foot shoes 4 at the two threaded through holes 21 to contact the two pipes respectively during pipe alignment, enabling individual adjustment of different pipes and ensuring flexibility in adjustment.

[0067] Furthermore, the boot 4 includes: a connector 41, which is rotatably sleeved on the threaded rod 3; and a base plate 42, disposed at a section of the connector 41 away from the threaded rod 3.

[0068] The contact plate 43 is located at the end of the base plate 42 away from the connector 41, and the contact plate 43 is detachably connected to the base plate 42.

[0069] The connector 41 is rotatably mounted on the threaded rod 3, allowing the foot shoe 4 to rotate freely when in contact with the inner wall of the pipe. When the internal assembly tool is performing assembly operations inside the pipe, the inner wall may be uneven or tilted. The rotation function of the connector 41 allows the foot shoe 4 to automatically adjust its angle, ensuring a tight fit between the contact plate 43 and the inner wall of the pipe. This evenly transmits the supporting force from the threaded rod 3, preventing localized stress concentration from damaging the inner wall of the pipe and ensuring stable support under various complex pipe inner wall conditions.

[0070] The base plate 42 connects the connector 41 and the contact plate 43, playing a crucial transition and support role. It evenly distributes the force transmitted by the connector 41 onto the contact plate 43, ensuring a sufficiently large contact area between the contact plate 43 and the inner wall of the pipe, thereby improving the stability of the support. The base plate 42 also enhances the overall structural strength of the foot boot 4, enabling it to withstand greater pressure and stably support the pipe during pipe assembly adjustments, preventing damage to the foot boot 4 due to uneven stress.

[0071] The contact plate 43, which directly contacts the inner wall of the pipe, is a key component for achieving support and adjustment functions. Its large contact area increases friction with the pipe wall, effectively preventing slippage of the foot boot 4 during pipe assembly adjustments and ensuring accurate adjustment. The contact plate 43 is detachably connected to the base plate 42. If wear affects the performance of the contact plate 43 during long-term use, it can be easily replaced, reducing maintenance costs and extending the service life of the foot boot 4.

[0072] During pipe assembly, rotating the threaded rod 3 causes the connector 41, base plate 42, and contact plate 43 to move together. The rotational characteristics of the connector 41 allow the foot shoe 4 to automatically adjust its angle according to the shape of the pipe's inner wall, ensuring that the contact plate 43 always maintains a good fit with the pipe's inner wall. When it is necessary to adjust the pipe's assembly position, the threaded rod 3 pushes the foot shoe 4 against the pipe's inner wall, and the contact plate 43 provides stable support, allowing the pipe to gradually reach the ideal assembly state. If the contact plate 43 becomes worn, it can be removed from the base plate 42 for replacement, ensuring the normal working performance of the foot shoe 4.

[0073] Furthermore, the internal equipment also includes:

[0074] Two sealing ring plates 5 are respectively fitted onto two ring plates 1, and the diameter of the sealing ring plate 5 is larger than the diameter of the ring plate 1.

[0075] Multiple sealing cover plates 6 are respectively disposed between each bridge plate 2, and each sealing cover plate 6 is sealed to two bridge plates and two ring plates 1 to form a sealed cavity between the two ring plates 1. During welding, argon gas can be filled into the sealed cavity for back gas shielded weld, reducing the risk of incomplete fusion and oxidation defects in the joint during welding.

[0076] During welding, high temperatures cause the metal to react with oxygen in the air, leading to defects such as oxidation and lack of fusion in the weld, affecting weld quality and pipeline lifespan. The sealed cavity formed by the sealing ring plate 5 and the sealing cover plate 6, after being filled with argon gas, allows air to escape, creating an oxygen-free protective area on the back of the weld. Argon, as an inert gas, is chemically stable and does not readily react with metals, effectively isolating oxygen, protecting the weld metal from oxidation, reducing the risk of lack of fusion and oxidation defects in the weld joint, and improving the quality and strength of the weld joint.

[0077] The sealing cover 6 can be removed from the bridge plate 2 and the ring plate 1. When rotating the threaded rod 3 to assemble the pipeline, the sealing cover 6 can be removed to facilitate observation of the pipeline assembly.

[0078] Furthermore, multiple connecting pipes 7 extending into the sealed cavity are provided on the two annular plates 1.

[0079] The main function of the connecting pipe 7 is to enable gas communication between the sealed cavity and external equipment. During the welding process, protective gases such as argon need to be filled into the sealed cavity, and the connecting pipe 7 provides a channel for the entry and exit of these gases.

[0080] Specifically, the connecting pipe 7 includes: a pipe body 71 and a connector 72;

[0081] The tube body 71 penetrates the annular plate 1, and the portion of the tube body 71 inside the sealed cavity is bent perpendicularly along the length direction of the tube body 71.

[0082] The connector 72 is located at the end of the pipe body 71 away from the sealed cavity.

[0083] The connector 72 can be easily connected to an external gas supply device. The tube 71 passes through the ring plate 1 and extends into the sealed cavity, so as to smoothly deliver argon gas to various parts of the cavity, ensure sufficient protective gas, maintain a stable gas environment, and reduce the risk of oxidation and lack of fusion defects in the welded joint.

[0084] In addition to connecting to gas supply equipment, connector 72 can also be connected to gas monitoring instruments to monitor parameters such as the purity and pressure of the gas inside the sealed cavity in real time. Based on the monitoring data, operators can adjust the gas supply equipment to ensure the gas inside the cavity is in optimal condition, effectively improving the controllability of welding quality.

[0085] During construction, argon gas generated by an external gas supply device enters the pipe body 71 through connector 72. The pipe body 71 penetrates the annular plate 1, introducing the gas into the sealed cavity. The vertically bent portion of the pipe body 71 within the sealed cavity allows for uniform gas diffusion, preventing gas concentration in any one area and ensuring adequate gas protection for the entire back side of the weld. Waste gas or excess gas generated during welding is discharged to the outside through the pipe body 71 and connector 72 of the connecting pipe 7 on another annular plate 1. Throughout the welding process, argon gas is continuously supplied to the sealed cavity, while the connecting pipe 7, which is not connected to the argon gas supply device, continuously discharges air from the sealed cavity. This ensures stable pressure within the sealed cavity without affecting the argon gas supply.

[0086] Furthermore, the two ring plates 1 include: a first ring plate 11 and a second ring plate 12;

[0087] Two traveling wheel assemblies 8 and one elastic traveling wheel assembly 9 are provided at equal intervals on the side of the first ring plate 11 away from the second ring plate 12;

[0088] Both the traveling wheel assembly 8 and the flexible traveling wheel assembly 9 are in contact with the inner wall of the pipe, used to support the inner pair of tools inside the pipe, or to drive the inner pair of tools to move inside the pipe.

[0089] The elastic walking wheel assembly 9 can extend and retract in the radial direction of the ring plate 1 to adapt to different pipe inner diameters.

[0090] Two traveling wheel assemblies 8 and one flexible traveling wheel assembly 9 work together in contact with the inner wall of the pipe, forming a stable three-point support structure. When working inside the pipe, this structure effectively distributes the weight of the tool, ensuring stable support within the pipe and preventing tilting or swaying. In large-diameter pipes, stable support prevents displacement due to an unstable center of gravity, ensuring the accuracy and safety of the pipe assembly during operation. The rigid structure of the traveling wheel assembly 8 provides reliable support, while the flexible traveling wheel assembly 9 adapts to changes in pipe diameter. Since the pipe wall is generally thicker at the interface than at other locations, the inner diameter of the pipe decreases at these points. Therefore, the flexible traveling wheel assembly 9 can also make minor adjustments to the unevenness of the pipe wall, preventing the entire device from getting stuck and unable to move.

[0091] The inclusion of the traveling wheel assembly 8 and the flexible traveling wheel assembly 9 allows the internal assembly tool to move flexibly within the pipeline. After completing one pipeline assembly operation, workers can push the tool, using the traveling wheels to roll along the inner wall of the pipeline, quickly moving it to the next assembly position. This significantly improves construction efficiency and reduces the workload and difficulty of manual handling. Compared to traditional manual handling methods, using traveling wheels to move the tool is more convenient and efficient, reducing the labor intensity of construction workers.

[0092] The flexible traveling wheel assembly 9 can extend and retract in the radial direction of the ring plate 1. This feature allows the inner assembly tool to be applied to pipes of various diameters. In actual construction, different pipe diameters may be encountered on the construction site. If the tool cannot adapt to changes in pipe diameter, frequent equipment replacement is required, increasing construction costs and time. However, the flexible traveling wheel assembly 9 can automatically adjust its extension and retraction length according to the inner diameter of the pipe, ensuring that the traveling wheels are always in close contact with the inner wall of the pipe, maintaining good support and mobility, expanding the applicability of the tool, and improving the versatility and economy of the equipment.

[0093] Specifically, the walking wheel assembly 8 includes:

[0094] A first bracket 81 is welded to a first ring plate 11. Two first traveling wheels 82 are rotatably mounted in the first bracket 81. A screw 83 is mounted on the first bracket 81; a friction plate 84 is slidably sleeved on the screw 83, and the friction plate 84 is in contact with the first traveling wheels 82. A nut 85 is threaded onto the screw 83, and the nut 85 is located on the side of the friction plate 84 away from the first traveling wheels 82. A first spring 86 is sleeved between the screw 83 and the nut 85 and the friction plate 84, with both ends of the first spring 86 abutting against the friction plate 84 and the nut 85, respectively.

[0095] The first bracket 81 is welded to the first ring plate 11, providing an installation foundation and structural support for the entire traveling wheel assembly 8. It connects the two first traveling wheels 82, screws 83, and other components into a whole, and firmly fixes the traveling wheel assembly 8 to the first ring plate 11, ensuring that the traveling wheel assembly 8 will not loosen or fall off during operation, and maintaining the stability of its overall structure with the internal components of the machine.

[0096] The first traveling wheel 82 is rotatably mounted in the first support 81, directly contacting the inner wall of the pipe. It plays a crucial role in supporting the weight of the machine and driving its movement within the pipe. Its rolling characteristics allow the machine to move smoothly within the pipe, reducing friction with the pipe wall and improving movement efficiency.

[0097] The screw 83 serves as an adjustment and connection component, providing mounting positions for the friction plate 84, the nut 85, and the first spring 86. By rotating the nut 85, the positions of the components on the screw 83 can be adjusted, thereby regulating the pressure of the friction plate 84 on the first traveling wheel 82 and controlling the friction force of the traveling wheel.

[0098] The friction plate 84 is slidably sleeved on the screw 83 and in contact with the first traveling wheel 82, mainly used to adjust the rotational friction of the first traveling wheel 82. When the friction plate 84 is under pressure, it will increase the friction between itself and the first traveling wheel 82, restricting the rotation of the traveling wheel and playing a certain braking role; conversely, reducing the pressure will reduce the friction, allowing the traveling wheel to rotate more freely.

[0099] The nut 85 is threaded onto the screw 83 and is located on the side of the friction plate 84 away from the first traveling wheel 82. By rotating the nut 85, it can move on the screw 83, thereby changing the degree of compression of the first spring 86, indirectly adjusting the pressure of the friction plate 84 on the first traveling wheel 82, and achieving precise adjustment of the friction force of the traveling wheel.

[0100] The first spring 86 is sleeved on the screw 83, with its two ends abutting against the friction plate 84 and the nut 85, respectively. It serves as a buffer and elastic adjustment mechanism. On the one hand, during the adjustment of the nut 85, its own elastic deformation makes the pressure change of the friction plate 84 on the first traveling wheel 82 more stable, avoiding sudden pressure changes. On the other hand, during the movement of the machine, it can buffer the impact force caused by factors such as unevenness of the inner wall of the pipe, protecting the traveling wheel assembly 8 and the inner assembly from excessive vibration affecting the machine.

[0101] During movement, the first traveling wheel 82, supported by the first bracket 81, contacts the inner wall of the pipe. The weight of the tool is transferred to the first traveling wheel 82 through the first bracket 81, and the traveling wheel supports the tool against the inner wall of the pipe. When the tool needs to be moved, it is pushed to make the first traveling wheel 82 roll on the inner wall of the pipe, thereby realizing the movement of the tool within the pipe.

[0102] When deceleration and movement control are required, such as when encountering a downhill slope in a pipe, the position of the nut 85 on the screw 83 is changed by rotating it. When the nut 85 rotates towards the first traveling wheel 82, it compresses the first spring 86, which transmits pressure to the friction plate 84, increasing the pressure of the friction plate 84 on the first traveling wheel 82. This increases the rotational friction of the traveling wheel, achieving a braking or deceleration effect. Conversely, when the nut 85 rotates away from the first traveling wheel 82, the compression of the first spring 86 decreases, the pressure of the friction plate 84 on the first traveling wheel 82 decreases, and the rotational friction of the traveling wheel decreases, making it easier for the traveling wheel to rotate and enabling rapid movement of the machine.

[0103] Specifically, the elastic walking wheel assembly 9 includes: a second bracket 91 passing through the annular space of the first ring plate 11 and the second ring plate 12, and the second bracket 91 is hinged to the first ring plate 11 via a connecting plate 92. A second spring 93 is provided on one end of the second bracket 91 near the second ring plate 12, and a pressure plate 94 is provided on the other end of the second spring 93 away from the second bracket 91, the pressure plate 94 being fixedly connected to the second ring plate 12. A triangular bracket 95 is hinged to the section of the second bracket 91 away from the second spring 93, and two second walking wheels 96 are rotatably mounted on the triangular bracket 95.

[0104] The second bracket 91, serving as the main support structure of the component, passes through the annular space between the first ring plate 11 and the second ring plate 12, and is hinged to the first ring plate 11 via the connecting plate 92, thus connecting and supporting other components. It provides mounting positions for the second spring 93, the triangular bracket 95, and the second traveling wheel 96. Furthermore, due to the hinged structure, its angle can be flexibly adjusted to adapt to changes in the inner wall of pipes of different diameters.

[0105] The connecting plate 92 connects the second support 91 and the first ring plate 11, connecting the second support 91 to the main structure of the inner assembly tool. Specifically, the connecting plate 92 is fixedly connected to the first ring plate 11 and hinged to the second support 91. It not only serves as a fixed connection but also provides a certain degree of freedom of movement at the hinge point, allowing the second support 91 to rotate around the hinge point, thereby enabling the elastic traveling wheel assembly 9 to adapt to changes in the inner diameter of the pipe.

[0106] The second spring 93 is installed at one end of the second bracket 91 near the second ring plate 12, mainly serving as elastic support and buffer. It can adjust the position of the second bracket 91 by its own expansion and contraction according to changes in the pipe's inner diameter, ensuring that the second traveling wheel 96 maintains appropriate contact pressure with the pipe's inner wall. During the movement of the equipment, the second spring 93 can also buffer the impact force caused by unevenness in the pipe's inner wall, protecting both the equipment and the pipe.

[0107] The pressure plate 94 is fixed to the second ring plate 12 and connected to the end of the second spring 93 away from the second bracket 91. It fixes one end of the second spring 93, enabling the second spring 93 to function stably. At the same time, when the second spring 93 extends or retracts, it transmits the spring force to the second ring plate 12, ensuring the stability of the entire elastic walking wheel assembly 9.

[0108] The triangular bracket 95 is hinged to the end of the second bracket 91 away from the second spring 93, providing a mounting structure for the two second traveling wheels 96. The triangular structure of the triangular bracket 95 has good stability, ensuring that the second traveling wheels 96 maintain a stable position during operation, and when the angle of the second bracket 91 changes, it drives the second traveling wheels 96 to adjust their position and angle accordingly to adapt to the inner wall of the pipe.

[0109] The second traveling wheel 96 is rotatably mounted on the triangular bracket 95 and directly contacts the inner wall of the pipe. It undertakes the important tasks of supporting the weight of the tool and assisting its movement within the pipe; its rolling characteristics allow the tool to move smoothly within the pipe. When adapting to pipes of different diameters, the second traveling wheel 96 maintains good contact with the inner wall of the pipe at all times, as the second bracket 91 moves and rotates.

[0110] When the internal assembly needs to work in pipes of different diameters, the change in the pipe's inner diameter will subject the second traveling wheel 96 to pressure in different directions and magnitudes. If the pipe's inner diameter decreases, the second traveling wheel 96 experiences outward pressure, which is transmitted to the second support 91 through the triangular bracket 95. This causes the second support 91 to rotate around the hinge point between the connecting plate 92 and the first ring plate 11, compressing the second spring 93. The second support 91 then retracts inward to accommodate the larger pipe diameter. Conversely, if the pipe's inner diameter increases, the elastic force of the second spring 93 pushes the second support 91 to rotate outward, causing the second traveling wheel 96 to extend outward to accommodate the smaller pipe diameter. In this way, the elastic traveling wheel assembly 9 can automatically adjust to adapt to pipes of different diameters.

[0111] When working inside the pipeline, the weight of the inner assembly tool is transferred to the second support 91 through the first ring plate 11 and the connecting plate 92, and then from the second support 91 to the triangular support 95 and the second traveling wheel 96. The second traveling wheel 96 contacts the inner wall of the pipeline, providing support for the tool. Furthermore, when the foot boot 4 abuts against the inner wall of the pipeline, the inner assembly tool is supported by the foot boot 4 and the threaded rod 3.

[0112] When the tool needs to be moved, push the tool, and the second traveling wheel 96 rolls on the inner wall of the pipe, moving the tool within the pipe. During the movement, the second spring 93 continuously adjusts the contact pressure between the second traveling wheel 96 and the inner wall of the pipe, ensuring that the traveling wheel always stably supports the tool and rolls smoothly.

[0113] Furthermore, the second ring plate 12 is provided with a plurality of equally spaced guide components 10 on the side away from the first ring plate 11;

[0114] The bootstrap components include:

[0115] The fourth bracket 101 is fixedly connected to the second ring plate 12;

[0116] Two guide wheels 102 are rotatably mounted in the fourth bracket 101.

[0117] Furthermore, the fourth support 101 is inclined inward toward the ring of the second ring plate 12.

[0118] When using the internal assembly for construction, the guide assembly 10 is oriented towards the moving pipe, thereby guiding the moving pipe to initially align with the fixed pipe (the fixed pipe is a long pipe that has already been installed and is generally fixed in place, while the moving pipe is a section of pipe that needs to be installed).

[0119] During pipeline installation, the primary function of the guide assembly 10 is to guide the moving pipeline accurately to and initially align it with the fixed pipeline. Multiple equidistant guide assemblies 10 can guide the moving pipeline from different positions, ensuring it moves in the correct direction and reducing deviations during pipeline assembly. In the construction of large-diameter pipelines, the guide assembly 10 can help accurately connect pipelines weighing several tons, improving construction precision and reducing the difficulty of subsequent adjustments.

[0120] The guide wheel 102 contacts the moving pipeline, preventing the pipeline opening from directly colliding with the fixed pipeline or other components. The pipeline opening is relatively fragile during transportation and installation; damage can affect welding quality and pipeline sealing. The guide assembly 10 effectively protects the pipeline opening, reducing deformation and wear caused by collisions and ensuring pipeline integrity.

[0121] The guiding component 10 facilitates a smoother pipeline connection process, reducing the need for repeated adjustments to pipeline positions by construction workers and saving construction time. In the construction of long-distance oil and gas pipelines, a large number of pipelines require assembly and welding; the guiding component 10 can accelerate the construction progress, improve overall construction efficiency, and reduce construction costs.

[0122] Compared to a parallel arrangement, the inclined fourth bracket 101 allows the guide wheel 102 to contact the moving pipe over a wider range. When the pipe deviates from its position within a certain range, the guide wheel 102 can promptly contact it and play a guiding role, increasing the tolerance of the guiding component 10 to pipe position deviation, reducing guidance failures caused by excessive pipe position deviation, and improving the smoothness and efficiency of construction.

[0123] When the moving pipe approaches the stationary pipe, the inner wall of the pipe first contacts the guide wheel 102 of the guide assembly 10. The position and angle of the guide wheel 102 cause the pipe to be subjected to a guiding force along the guide wheel 102 upon contact. This guiding force causes the central axis of the pipe to gradually move towards the central axis of the stationary pipe during the movement, that is, the pipe walls of the two pipes are aligned with each other, achieving initial alignment. This prevents the pipe from impacting the threaded rod 3 and the foot shoe 4 during movement, which could cause damage to the pipe joint.

[0124] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0125] It should also be noted that, in this document, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations, nor should they be construed as indicating or implying relative importance. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. In the absence of further restrictions, an element defined by the phrase "includes a..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes the element.

[0126] The technical solutions provided in this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand this application, and the content of this specification should not be construed as a limitation of this application. Furthermore, for those skilled in the art, there will be different forms of changes in the specific implementation methods and application scope based on this application. It is neither necessary nor possible to exhaustively list all implementation methods here, and obvious changes or modifications derived therefrom are still within the protection scope of this application.

Claims

1. An in-line gang implement characterized by, The utility model relates to a kind of inner group pair machine tools, including: Two ring plates, two The ring plate is oppositely arranged; Multiple bridge plates, each The bridge plate is arranged between two The ring plate, and each The bridge plate is evenly distributed along the circumferential direction of two The ring plate;Two threaded through holes are opened on each The bridge plate along the radial direction of The ring plate, and the opening position of two The threaded through hole is distributed along the length direction of The bridge plate; Multiple threaded rods, each The threaded rod is respectively threadedly connected in each The threaded through hole; Multiple foot boots, each The foot boot is respectively arranged at the end of The threaded rod away from the ring core of The ring plate.

2. The internal gang set implement of claim 1, wherein, The inner group pair machine tool further includes: Two sealing ring plates, two The sealing ring plate is respectively sleeved on two The ring plate, and the diameter of The sealing ring plate is greater than the diameter of The ring plate; Multiple sealing cover plates, each The sealing cover plate is respectively arranged between each The bridge plate, and The sealing cover plate is respectively sealed with two The bridge plate and two The ring plate Connection, to form sealed cavity between two The ring plate.

3. The internal gang set implement of claim 2, wherein, Two The ring plate is provided with multiple communication pipes extending into the inside of The sealed cavity.

4. The internal gang set implement of claim 3, wherein, The communication pipe includes a pipe body and a connecting head. The pipe body penetrates The ring plate, and the part of The pipe body inside The sealed cavity is vertically bent along the length direction of The pipe body; The connecting head is arranged at the end of The pipe body away from The sealed cavity.

5. The internal gang set implement of claim 1, wherein, The foot boot includes: Connecting head, The connecting head is rotatably sleeved on The threaded rod; Base plate, arranged at the end of The connecting head away from The threaded rod; Contact plate, arranged at the end of The base plate away from The connecting head, and The contact plate is detachably connected with The base plate.

6. The internal gang set implement of claim 1, wherein, Two The ring plate includes a first ring plate and a second ring plate; Two The ring plate includes a first ring plate and a second ring plate; The first ring plate is equidistantly provided with two walking wheel assemblies and an elastic walking wheel assembly on the side away from the second ring plate; The walking wheel assembly and the elastic walking wheel assembly are in contact with the inner wall of the pipeline, for supporting the inner group pair machine tool in the pipeline, or driving the inner group pair machine tool to move in the pipeline; 7. The inner gang set implement of claim 6, wherein, Wherein, the elastic walking wheel assembly can be stretched and contracted in the radial direction of The ring plate, so as to adapt to different inner diameters of the pipeline. The walking wheel assembly includes: First support, welded on The first ring plate; Two first walking wheels, rotatably arranged in The first support; Screw rod, arranged on The first support; Friction plate, slidably sleeved on The screw rod, and The friction plate is in contact with The first walking wheel; 8. The internal gang set implement of claim 6, wherein, The screw rod is threadedly connected with a nut, and the nut is located on the side of The friction plate away from The first walking wheel, The screw rod is sleeved with a first spring between The nut and The friction plate, and the two ends of The first spring are respectively in contact with The friction plate and The nut. The elastic walking wheel assembly includes: Second support, through The annular space of The first ring plate and The second ring plate, and The second support is hinged with The first ring plate through connecting plate; The second support is provided with a second spring on the end close to The second ring plate, The second spring is provided with a pressing plate on the end away from The second support, and The pressing plate is fixedly connected with The second ring plate. The second support is hinged with a triangular support at one end away from the second spring, and two second walking wheels are rotatably assembled on the triangular support.

9. The inner gang set implement of claim 6, wherein, The second ring plate is provided with a plurality of equidistantly distributed guide assemblies on one side away from the first ring plate. The guide assembly comprises: A fourth support fixedly connected with the second ring plate; Two guide wheels rotatably assembled in the fourth support.

10. The internal gang set implement of claim 9, wherein, The fourth support is obliquely arranged towards the inside of the second ring plate.

Images