Rectangular top pipe joint F interface steel ring processing and forming device

Abstract

The utility model provides a kind of rectangular top pipe joint F interface steel ring processing forming device, the device includes: support base;Inner ring support ring, set in the top of support base;Four corner outer clamping solid arcs, with four inner circular arc chamfer supports of inner ring support ring one-to-one correspondence, each corner outer clamping solid arc is along the radial of corresponding inner circular arc chamfer support with the way of position adjustment to be set in the outside of corresponding inner circular arc chamfer support;Four groups of side outer clamping fasteners, respectively with four inner support side plates of inner ring support ring corresponding, each group of side outer clamping fastener is along the direction perpendicular to corresponding inner support side plate with the way of position adjustment to be set in the outside of corresponding inner support side plate.The utility model processing procedure standardization, reduce the possible human error in field construction, can guarantee that each pipe joint steel ring component consistency, avoid the quality fluctuation caused by field operation difference, improve overall quality.

Description

Technical Field

[0001] This utility model relates to the field of underground pipe jacking and excavation engineering technology, and more specifically, to a device for processing and forming steel rings for F-interfaces of rectangular pipe jacking sections. Background Technology

[0002] Large-section rectangular pipe jacking technology is mainly used in the construction of integrated utility tunnels and urban underground pedestrian crossings. In utility tunnel construction, rectangular pipe jacking can cross busy surface roads, avoiding the significant impact of large-scale excavation on surface traffic and underground pipelines. Traditional large-scale excavation methods pose great difficulties for surface traffic organization and pipeline relocation, while rectangular pipe jacking technology can reduce interference with surface traffic and underground pipelines through trenchless methods, minimizing social impact and avoiding the long timeframes and high costs associated with pipeline relocation and road traffic diversion.

[0003] Large-section rectangular pipe jacking sections are the most critical main component materials in pipe jacking projects. Generally, the pipe sections are made of high-grade impermeable reinforced concrete, with 16mm thick steel plate rings at both ends. The pipe sections are connected using F-type socket joints. Because the steel plates used to fabricate the large-section pipe jacking sections are thick and the rings are large, extensive manual labor is required during processing. The processing of the steel rings demands extremely high precision; any error can lead to insecure welds or substandard shapes, failing to guarantee a proper connection with the concrete pipe section. This requires workers to be extremely meticulous when adjusting and welding each steel plate, increasing labor costs and operational difficulty. Furthermore, quality control stability is poor under manual operation, as it is limited by the individual skill level of the workers, easily leading to quality fluctuations and making it difficult to guarantee the final product quality. Summary of the Invention

[0004] In view of this, this utility model proposes a rectangular jacking pipe section F-interface steel ring processing and forming device, which aims to solve the problems of high labor costs and operational difficulties in the existing production of large-section jacking pipe section steel rings and steel plates, resulting in poor quality control stability, easy quality fluctuations, and difficulty in ensuring the quality of the final product.

[0005] This utility model proposes a device for processing and forming a steel ring at the F-interface of a rectangular jacking pipe section. The device includes: a support base for bottom support of the steel ring; an inner support ring positioned above the support base for inner support and limiting of the inner wall of the steel ring; and four corner outer clamping arcs corresponding to the four inner arc chamfered support members of the inner support ring. Each corner outer clamping arc is radially arranged on the outside of the corresponding inner arc chamfered support member in a positionally adjustable manner, for supporting the steel ring. The four corners are externally tightened to secure the rounded corners of the steel ring between the external clamping arcs of the corners and the corresponding inner rounded chamfer support members; four sets of side external clamping members correspond to the four inner support side plates of the inner ring support ring, and each set of side external clamping members is set on the outside of the corresponding inner support side plate in a position-adjustable manner along a direction perpendicular to the corresponding inner support side plate, for externally tightening the sides of the steel ring to secure the sides of the steel ring between the side external clamping members and the corresponding inner support side plates, thereby completing the forming of the steel ring.

[0006] Furthermore, in the aforementioned rectangular jacking pipe section F-interface steel ring processing and forming device, the corner outer clamping arc and / or the side outer clamping fastener are both connected to a linear motion drive component, which is used to drive the corner outer clamping arc and / or the side outer clamping fastener to perform reciprocating linear motion.

[0007] Furthermore, in the aforementioned rectangular jacking pipe section F-interface steel ring processing and forming device, the linear motion drive assembly includes: two spaced-apart limiting and fixing plates; a rotation drive nut, rotatably clamped between the two limiting and fixing plates; and a transmission screw, passing through the rotation drive nut and the two limiting and fixing plates, wherein the transmission screw is threadedly connected to the rotation drive nut, and is used to enable the transmission screw to reciprocate linearly along the axial direction of the rotation drive nut when the rotation drive nut rotates, so as to press the corner outer clamping arc and / or the side outer clamping fastener close to the inner ring support ring.

[0008] Furthermore, in the aforementioned rectangular jacking pipe section F-interface steel ring processing and forming device, the side external clamping fastener is a plate-shaped structure or a box-shaped structure, which is fixedly connected to the tightening end of the transmission screw to press the side of the steel ring and limit the movement of the transmission screw.

[0009] Furthermore, in the aforementioned rectangular jacking pipe section F-interface steel ring processing and forming device, the tightening end of the transmission screw is provided with a limiting member, the bottom end of which is supported on the support base, for limiting the movement of the transmission screw.

[0010] Furthermore, in the aforementioned rectangular jacking pipe section F-interface steel ring processing and forming device, the support base is a grid-shaped structure, and inclined support rods are extended at the four corners of the grid-shaped structure to support the four corners of the inner ring support ring and the corner outer clamping arc.

[0011] Furthermore, in the aforementioned rectangular jacking pipe section F-interface steel ring processing and forming device, the supporting base is a grid-shaped frame structure welded from H-shaped steel components.

[0012] Furthermore, in the aforementioned rectangular jacking pipe section F-interface steel ring processing and forming device, the inner arc chamfer support is an arc-shaped box-shaped structure with openings at both ends.

[0013] Furthermore, in the aforementioned rectangular jacking pipe section F-interface steel ring processing and forming device, the inner support side plate is an H-shaped steel component.

[0014] Furthermore, in the aforementioned rectangular jacking pipe section F-interface steel ring processing and forming device, the corner outer clamping arc is an arc-shaped box sleeve structure with openings at both ends.

[0015] This utility model provides a rectangular jacking pipe section F-interface steel ring processing and forming device. The inner ring support ring provides internal support and limits the inner wall of the steel ring. The four corner external clamping arcs and four sets of side external clamping fasteners are adjusted along the support base to move towards the inner ring support ring, thereby externally tightening the steel ring located on the outer ring of the inner ring support ring. This clamps the steel ring between the inner ring support ring, the corner external clamping arcs, and the four sets of side external clamping fasteners, thus completing the steel ring forming. The standardized processing procedure reduces potential human error during on-site construction, ensures the consistency of each pipe section's steel ring component, avoids quality fluctuations caused by differences in on-site operations, and improves overall quality. It solves the problem of poor quality control stability and easy quality fluctuations caused by the high labor costs and operational difficulties in manufacturing large-section jacking pipe section steel rings and plates, making it difficult to guarantee the final product quality. Simultaneously, this forming device also has the following effects:

[0016] First, the fabrication and processing of large-section pipe section steel rings involves the coordinated efforts of the grid beam base, the inner and outer arc chamfered steel box sleeve, and the long rod nut. Standardized operations facilitate mass production, significantly reduce the number of workers, and lower labor costs.

[0017] Secondly, the processing and manufacturing process is simpler, allowing for rapid assembly and welding, thus improving overall construction efficiency; the progress of mass production is also more significant.

[0018] Third, the rectangular jacking pipe section F-interface steel ring processing and forming device mainly consists of H-beams and steel plates, and the screws and nuts are general on-site materials, which do not require special customization. They can be used as needed and are safe and reliable. Attached Figure Description

[0019] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0020] Figure 1 A plan view of the rectangular jacking pipe section F-interface steel ring processing and forming device provided in this embodiment of the utility model;

[0021] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0022] Figure 3 for Figure 1 A magnified view of a section at point B in the middle;

[0023] Figure 4 Elevation view of the rectangular jacking pipe section F-interface steel ring processing and forming device provided in this embodiment of the utility model;

[0024] Figure 5 for Figure 4 A magnified view of a section at point B in the middle. Detailed Implementation

[0025] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specified, embodiments and features of the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] See Figures 1 to 5 This is a preferred structure of the rectangular jacking pipe section F-interface steel ring processing and forming device provided in this embodiment of the utility model. As shown in the figure, the device includes: a support base 1, an inner ring support ring 2, four corner outer clamping arcs 3, and four sets of side outer clamping fasteners 4; wherein,

[0027] The support base 1 is used to provide bottom support for the steel ring 5.

[0028] Specifically, the support base 1 can be a grid-shaped structure, and inclined support rods 11 are extended from the four corners of the grid-shaped structure to support the four corners of the inner ring support ring 2 and the corner clamping arcs 3. In this embodiment, the support base 1 can be a grid-shaped frame structure welded from H-beam steel components, and both the inclined support rods 11 and the grid-shaped frame structure can be welded from H-beam steel components. There can be four inclined support rods 11, respectively located at the four corners. The four inclined support rods 11 can be arranged at an angle, especially at 45°, to provide top pressure fixation at the center of the four rounded corners of the steel ring 5. In this embodiment, the support base 1 can also be provided with one or more internal reinforcing rods 12. Of course, there can also be multiple externally extended support rods 13 on the support base 1. That is, the grid-shaped structure generally has two externally extended support rods 13 on each of the four sides. Of course, the number of externally extended support rods 13 on each side can also be other, such as... Figure 1 As shown, there are four externally extended support rods 13 on both the upper and lower long sides, which can ensure the stability of the long side of the steel ring 5 when it is tightly pressed. The steel ring 5 can be formed by welding two U-shaped steels arranged opposite each other to form a matching steel ring structure.

[0029] The inner support ring 2 is positioned above the support base 1 and is used to provide inner support and limit the inner wall of the steel ring 5.

[0030] Specifically, the size of the inner ring support ring 2 can correspond to the pre-formed size of the steel ring 5 to provide inner support and limit the inner wall of the steel ring 5, so that the steel ring 5 is fixed and limited to the appropriate size. The inner ring support ring 2 can be welded and fixedly installed on the top wall of the support base 1, or it can be fixedly installed on the top wall of the support base 1 by other means. This embodiment does not impose any limitations on it. In this embodiment, the inner ring support ring 2 can be a rectangular frame structure with rounded corners that is adapted to the steel ring 5. The inner ring support ring 2 includes four inner support side plates 21 and four inner rounded corner support members 22. The four inner support side plates 21 serve as the four sides, and the four inner rounded corner support members 22 serve as the rounded corners. The four inner support side plates 21 and the four inner rounded corner support members 22 are arranged in sequence to form a rectangular structure with rounded corners. In this embodiment, the inner support ring 2 can be a rectangular ring structure welded from H-shaped steel components, that is, the inner support side plate 21 can be an H-shaped steel component, and the inner support side plate 21 and the inner arc chamfered support member 22 are fixed by welding. Of course, they can also be fixed by other means, and this embodiment does not impose any limitations on them. Among them, the inner arc chamfered support member 22 can be an arc-shaped box-like structure with open ends, that is, an arc-shaped structure with an overall arc of 90° and a square tube-like structure in cross-section.

[0031] The four corner outer clamping arcs 3 correspond one-to-one with the inner arc chamfer support members 22 of the inner ring support ring 2. Each corner outer clamping arc 3 is set on the outside of the corresponding inner arc chamfer support member 22 in a position-adjustable manner along the radial direction of the corresponding inner arc chamfer support member 22, so as to externally tighten the four corners of the steel ring 5, so that the rounded corners of the steel ring 5 are clamped between the corner outer clamping arcs 3 and the corresponding inner arc chamfer support members 22.

[0032] Specifically, the four corner outer clamping arcs 3 correspond one-to-one with the inner arc chamfer support members 22 of the inner ring support ring 2, and the corner outer clamping arcs 3 are adapted to the four corner outer walls of the steel ring 5. In this embodiment, each corner outer clamping arc 3 is arranged radially along the corresponding inner arc chamfer support member 22 in a position-adjustable manner on the outside of the corresponding inner arc chamfer support member 22, so as to move towards the inner arc chamfer support member 22, thereby clamping and forming the rounded corner of the steel ring 5 placed between the corner outer clamping arc 3 and the corresponding inner arc chamfer support member 22, similar to stamping, to complete the forming of the rounded corner of the steel ring 5. In this embodiment, the bottom end of the corner outer clamping arc 3 can be supported on the inclined support rod 11, and the corner outer clamping arc 3 is slidably arranged on the inclined support rod 11. In this embodiment, the corner outer clamping arc 3 can press against the inclined support rod 11, or it can be connected to the inclined support rod 11. In this embodiment, there is no limitation on the connection between the two. To improve the accuracy of the corner clamping arc 3 position adjustment, preferably, a guide component can be provided on the inclined support rod 11 to guide the sliding of the corner clamping arc 3 along the length direction of the inclined support rod 11, avoiding the sliding tilt of the corner clamping arc 3. In this embodiment, the corner clamping arc 3 can be connected to a linear motion drive component 6 to drive the corner clamping arc 3 to perform reciprocating linear motion. The power output end of the linear motion drive component 6 can press against the corner clamping arc 3, that is, the power output end of the linear motion drive component 6 can be in contact with the corner clamping arc 3. Of course, the two can also be fixedly connected by welding or other means. This embodiment does not limit it in any way. In this embodiment, the drive is achieved by the two pressing against each other. The corner clamping arc 3 can be an arc-shaped box structure with open ends, that is, an arc-shaped structure with an arc of 90° and a square tube structure in cross-section.

[0033] The four sets of side external clamping fasteners 4 correspond to the four inner support side plates 21 of the inner ring support ring 2 respectively. Each set of side external clamping fasteners 4 is set on the outside of the corresponding inner support side plate 22 in a position-adjustable manner along a direction perpendicular to the corresponding inner support side plate 22. They are used to externally tighten the side of the steel ring 5 so that the side of the steel ring 5 is clamped between the side external clamping fasteners 4 and the corresponding inner support side plate 22 to complete the forming of the steel ring.

[0034] Specifically, four sets of side clamping fasteners 4 can be respectively disposed on the four-sided extended support rods 13, and the side clamping fasteners 4 are slidably disposed on the extended support rods 13. To improve the accuracy of the position adjustment of the side clamping fasteners 4, preferably, the extended support rods 13 can be provided with guide components to guide the sliding of the side clamping fasteners 4 along the length direction of the extended support rods 13, and avoid the sliding misalignment of the side clamping fasteners 4. Each extended support rod 13 can be provided with a side clamping fastener 4 to ensure the stability of the steel ring 5 forming. In this embodiment, the side clamping fasteners 4 can be connected to a linear motion drive component 6 for driving the side clamping fasteners 4 to perform reciprocating linear motion. The power output end of the linear motion drive assembly 6 can press against the side clamping fastener 4, meaning the power output end of the linear motion drive assembly 6 can be in contact with the side clamping fastener 4. Of course, the two can also be fixedly connected by welding or other methods; this embodiment does not impose any limitations on this. This embodiment uses welding as an example for illustration. The side clamping fastener 4 can be a plate-like structure or a box-like structure, fixedly connected to the power output end of the linear motion drive assembly 6 to press against the side of the steel ring 5 and limit the movement of the power output end of the linear motion drive assembly 6, ensuring that the power output end of the linear motion drive assembly 6 can only perform reciprocating linear motion and cannot perform rotation or other movements.

[0035] See also Figure 2 , Figure 3 and Figure 5 The linear motion drive assembly 6 may include: two limiting and fixing plates 61, a rotation drive nut 62, and a transmission screw 63.

[0036] Two limiting and fixing plates 61 are arranged at intervals, and a rotation drive nut 62 is clamped between the two limiting and fixing plates 61 in a rotatable manner.

[0037] Specifically, both limiting and fixing plates 61 can be provided with coaxially arranged through holes, which can be spaced apart on the support base 1. In particular, for the limiting and fixing plate 61 of the linear motion drive assembly 6 that drives the corner outer clamping arc 3, the bottom can be welded and fixed to the externally extended support rod 13. For the limiting and fixing plate 61 of the linear motion drive assembly 6 that drives the side outer clamping fastener 4, the bottom can be welded and fixed to the inclined support rod 11. A rotating drive nut 62 is provided between the two limiting and fixing plates 61. The rotating drive nut 62 is coaxially arranged with the through holes of the two limiting and fixing plates 61. The two limiting and fixing plates 61 limit the axial displacement of the rotating drive nut 62, so that the rotating drive nut 62 can only rotate between the two limiting and fixing plates 61. To ensure the stability of the rotation drive nut 62, preferably, a limiting sleeve (not shown in the figure) is provided on the outside of the rotation drive nut 62, positioned between two limiting fixing plates 61. The limiting sleeve can be fixedly installed on the two limiting fixing plates 61, and the rotation drive nut 62 is rotatably disposed within the limiting sleeve to ensure the stability that the rotation drive nut 62 can only rotate around its axis. In this embodiment, the axial direction of the rotation drive nut 62 is arranged along the length direction of the inclined support rod 11 or the externally extending support rod 13.

[0038] The transmission screw 63 passes through the rotation drive nut 62 and the two limiting fixing plates 61, and the transmission screw 63 is threadedly connected to the rotation drive nut 62. When the rotation drive nut 62 rotates, the transmission screw 63 can reciprocate linearly along the axial direction of the rotation drive nut 62 to press against the outer clamping arc 3 at the corner and / or the outer clamping fastener 4 on the side to move close to the inner ring support ring 2.

[0039] Specifically, the transmission screw 63 is adapted to the rotation drive nut 62 and is arranged along the length direction of the inclined support rod 11 or the externally extended support rod 13. The transmission screw 63 passes through the rotation drive nut 62 and the two limiting fixing plates 61. The transmission screw 63 can reciprocate linearly along the axial direction of the rotation drive nut 62, i.e., along the length direction of the inclined support rod 11 or the externally extended support rod 13. The transmission screw 63 and the rotation drive nut 62 are threadedly connected. When the rotation drive nut 62 rotates, the transmission screw 63 can reciprocate linearly along the axial direction of the rotation drive nut 62 to press the corner outer clamping arc 3 and / or the side outer clamping fastener 4 closer to the inner ring support ring 2, thereby driving the movement of the corner outer clamping arc 3 and / or the side outer clamping fastener 4.

[0040] See also Figure 2 The clamping end of the transmission screw 63 of the linear motion drive assembly 6 that drives the corner outer clamping arc 3 (such as...) Figure 2A limiting member 64 may be provided at the upper left end (as shown), with its bottom end supported on the support base 1, to limit the movement of the transmission screw 63, so that the transmission screw 63 can rotate. Specifically, the limiting member 64 and the top end of the transmission screw 63 can be fixed by welding. Of course, other connection methods can also be used to achieve a fixed connection, and no limitation is made in this embodiment. The limiting member 64 is slidably disposed on the inclined support rod 11, and the inclined support rod 11 limits and guides the limiting member 64 so that the limiting member 64 can only reciprocate linearly along the length direction of the inclined support rod 11, so that the transmission screw 63 reciprocates linearly along the length direction of the inclined support rod 11, avoiding the rotation of the transmission screw 63 and affecting the overall motion drive.

[0041] See also Figure 3 and Figure 5 The side external clamping fastener 4 is a plate-shaped structure or a box-shaped structure, which is fixedly connected to the tightening end of the transmission screw 63 (e.g., Figure 3 The left end (as shown) is used to press against the side of the steel ring 5 and limit the movement of the transmission screw 63. Specifically, the side outer clamp 4 is slidably mounted on the external extension support rod 13. The external extension support rod 13 limits and guides the side outer clamp 4 so that the side outer clamp 4 can only reciprocate linearly along the length direction of the external extension support rod 13, so that the transmission screw 63 reciprocates linearly along the length direction of the external extension support rod 13, avoiding the rotation of the transmission screw 63 and affecting the overall motion drive.

[0042] The working process of the rectangular jacking pipe section F-interface steel ring processing and forming device is as follows: Step 1: First, determine the structural dimensions of the jacking pipe section to be produced. Cut H-shaped steel components and weld them to form a grid beam platform base as the support base 1. The support base 1 is generally 1.35m wider than each side of the pipe section. Step 2: Set and weld the inner support side plate 21 in the center on the support base 1. The outer dimensions of the inner support side plate 21 are equal to the outer dimensions of the jacking pipe section minus the thickness of the steel ring plate. Step 3: According to the chamfer dimensions of the jacking pipe section, weld the steel plate to form the inner chamfer. The support member 22 and the corner outer clamping arc 3 are welded and fixed to the upper part of the inclined support rod 11, and the corner outer clamping arc 3 is placed on the inclined support rod 11 outside the pipe section's fixed size. The distance between the corner outer clamping arc 3 and the inner arc chamfered support member 22 can be adjusted arbitrarily as needed by the transmission screw 63. Step 4: Two limiting fixing plates 61 are set at appropriate positions on the support rod 13 extending outside the support base 1. The rotating drive nut 62 is clamped between the two limiting fixing plates 61 in a rotatable manner, and the transmission screw 63 passes through the rotating drive nut 62. The drive nut 62 and two limiting fixing plates 61 are connected, and the transmission screw 63 is threadedly connected to the drive nut 62. The length adjustment of the transmission screw 63, i.e., the position adjustment of the transmission screw 63, is controlled by manually rotating the drive nut 62. Step 5: The side external clamping fastener 4 is made by welding steel plate and welded to the front end of the transmission screw 63, i.e., the tightening end, to form a whole. Step 6: The size and width of the F-type socket steel rings at both ends of the rectangular jacking pipe section are confirmed, and then the whole piece of steel plate with the required thickness is laser-cut and divided. Step 7: According to the cut and divided sections Good strip steel plate, initially stamped with a chamfering die to form the pipe section arc; two U-shaped arc chamfered semi-finished products of steel ring; Step 8: Place the steel ring semi-finished product on the rectangular jacking pipe section F interface steel ring processing and forming device, especially between the inner arc chamfered support 22 and the corner outer clamping arc 3, and between the inner support side plate 21 and the side outer clamping fastener 4, and pre-tighten it by adjusting the rotation drive nut 62 and transmission screw 63 on the support base 1; Step 9: Perform closed welding forming of the annular steel ring, that is, welding the two U-shaped arc chamfered semi-finished products at the butt joint position.

[0043] In summary, the rectangular jacking pipe section F-interface steel ring processing and forming device provided in this embodiment uses an inner ring support ring to provide inner support and limit the inner wall of the steel ring; by adjusting the position of the four corner outer clamping arcs and four sets of side outer clamping fasteners along the support base, the steel ring moves towards the inner ring support ring, thereby externally tightening the steel ring set on the outer ring of the inner ring support ring, so that the steel ring is clamped between the inner ring support ring, the corner outer clamping arcs, and the four sets of side outer clamping fasteners, thus completing the forming of the steel ring. The processing flow is standardized, reducing the possibility of human error during on-site construction, ensuring the consistency of each pipe section steel ring component, avoiding quality fluctuations caused by differences in on-site operations, improving the overall quality, and solving the problem that the existing methods for manufacturing large-section jacking pipe section steel rings and plates have high labor costs and operational difficulties, resulting in poor quality control stability and easy quality fluctuations, making it difficult to guarantee the final product quality. At the same time, this forming device also has the following effects:

[0044] First, the fabrication and processing of large-section pipe section steel rings involves the coordinated efforts of the grid beam base, the inner and outer arc chamfered steel box sleeve, and the long rod nut. Standardized operations facilitate mass production, significantly reduce the number of workers, and lower labor costs.

[0045] Secondly, the processing and manufacturing process is simpler, allowing for rapid assembly and welding, thus improving overall construction efficiency; the progress of mass production is also more significant.

[0046] Third, the rectangular jacking pipe section F-interface steel ring processing and forming device mainly consists of H-beams and steel plates, and the screws and nuts are general on-site materials, which do not require special customization. They can be used as needed and are safe and reliable.

[0047] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0048] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0049] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A device for processing and forming steel rings for the F-interface of a rectangular jacking pipe section, characterized in that, include: Support base, used to provide bottom support for the steel ring; An inner support ring is positioned above the support base to provide inner support and limit the inner wall of the steel ring. The four corner outer clamping arcs correspond one-to-one with the four inner arc chamfered support members of the inner ring support ring. Each corner outer clamping arc is set on the outside of the corresponding inner arc chamfered support member in a position-adjustable manner along the radial direction of the corresponding inner arc chamfered support member. It is used to externally tighten the four corners of the steel ring so that the rounded corners of the steel ring are clamped between the corner outer clamping arcs and the corresponding inner arc chamfered support members. Four sets of side external clamping fasteners correspond to the four inner support side plates of the inner ring support ring, respectively. Each set of side external clamping fasteners is set on the outside of the corresponding inner support side plate in a position-adjustable manner along a direction perpendicular to the corresponding inner support side plate. They are used to externally tighten the side of the steel ring so that the side of the steel ring is clamped between the side external clamping fasteners and the corresponding inner support side plates to complete the forming of the steel ring.

2. The rectangular jacking pipe section F-interface steel ring processing and forming device according to claim 1, characterized in that, Both the corner outer clamping arc and / or the side outer clamping fastener are connected to a linear motion drive assembly for driving the corner outer clamping arc and / or the side outer clamping fastener to perform reciprocating linear motion.

3. The rectangular jacking pipe section F-interface steel ring processing and forming device according to claim 2, characterized in that, The linear motion drive component includes: Two spaced-apart limit fixing plates; Rotate the drive nut to clamp it between the two limiting and fixing plates in a rotatable manner; A transmission screw is inserted through the rotation drive nut and the two limiting fixing plates, and the transmission screw is threadedly connected to the rotation drive nut. When the rotation drive nut rotates, the transmission screw can reciprocate linearly along the axial direction of the rotation drive nut to press against the corner outer clamping arc and / or the side outer clamping fastener to move closer to the inner ring support ring.

4. The rectangular jacking pipe section F-interface steel ring processing and forming device according to claim 3, characterized in that, The side external clamping fastener is a plate-shaped structure or a box-shaped structure, which is fixedly connected to the top end of the transmission screw to press against the side of the steel ring and limit the movement of the transmission screw.

5. The rectangular jacking pipe section F-interface steel ring processing and forming device according to claim 3, characterized in that, The top end of the transmission screw is provided with a limiting member, and its bottom end is supported on the support base to limit the movement of the transmission screw.

6. The rectangular jacking pipe section F-interface steel ring processing and forming device according to any one of claims 1 to 5, characterized in that, The support base has a grid-shaped structure, and inclined support rods are provided at the four corners of the grid-shaped structure to support the four corners of the inner ring support ring and the outer corner clamping arc.

7. The rectangular jacking pipe section F-interface steel ring processing and forming device according to claim 6, characterized in that, The support base is a grid-shaped frame structure formed by welding H-shaped steel components.

8. The rectangular jacking pipe section F-interface steel ring processing and forming device according to any one of claims 1 to 5, characterized in that, The inner arc chamfered support is an arc-shaped box-like structure with openings at both ends.

9. The rectangular jacking pipe section F-interface steel ring processing and forming device according to any one of claims 1 to 5, characterized in that, The inner support side plate is an H-shaped steel component.

10. The apparatus for processing and forming the F-interface steel ring of a rectangular jacking pipe section according to any one of claims 1 to 5, characterized in that, The corner outer clamping arc is an arc-shaped box-like structure with openings at both ends.

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