Simple and easy shaped pipe curtain lock catch processing platform

Abstract

This utility model discloses a simplified, standardized pipe curtain locking processing platform. A left positioning frame and a right positioning frame are installed on the worktable, with a U-shaped positioning groove for positioning steel pipes between them. Positioning plates for the locking angle steel are installed on the left and right positioning frames facing the positioning groove. The positioning frame adopts a "base + column" structure. The left positioning frame positions the two angle steels of the male connector using two positioning plates, and the right positioning frame positions the two angle steels of the female connector using three positioning plates. The base is fixed to the worktable using clamps and fasteners. The worktable consists of legs, reinforcing rods, and a top rod, with the reinforcing rods welded to the legs and top rod to form a triangular structure. This utility model patent solves the problems of poor positioning accuracy, unstable welding quality, and low construction efficiency in traditional processes, improving construction efficiency and welding quality. It has advantages such as simple structure, low cost, and strong applicability.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a standardized platform for locking and fastening processing in pipe jacking construction. Background Technology

[0002] In the construction of underground utility tunnels and other similar projects, pipe jacking requires the splicing of steel pipes to form a continuous support structure. The welding quality of the angle steel interlocks (male and female) on both sides of the pipe jack directly affects the sealing performance and structural stability of the pipe jack. Traditional pipe jack welding methods have the following drawbacks:

[0003] Poor positioning accuracy: Welding must be done directly on the ground in the steel processing area, which cannot effectively fix the pipe curtain steel pipe and the locking angle steel, causing the angle steel on both sides to shift during welding;

[0004] Unstable welding quality: Due to the shaking of steel pipes and locking angle steel, defects such as slag inclusions and porosity are prone to occur in the weld, resulting in a low pass rate for ultrasonic or radiographic testing.

[0005] Low construction efficiency: Manual positioning is time-consuming and labor-intensive, making it difficult to complete batch processing on schedule, and the rework rate is high.

[0006] Therefore, it is urgent to design a pipe curtain locking processing platform that can accurately position and efficiently carry out construction in order to solve the above-mentioned technical problems. Utility Model Content

[0007] This utility model provides a simplified and standardized pipe curtain locking processing platform. Through a modular positioning structure and a stable support system, it achieves high-precision welding of pipe curtain steel pipes and angle steel locking clips, thereby improving construction efficiency and welding quality.

[0008] This utility model provides a simplified, standardized pipe curtain locking processing platform, including a workbench. A left positioning frame and a right positioning frame are mounted on the workbench. A positioning component for positioning steel pipes is installed between the left and right positioning frames. Several positioning plates for positioning locking angle steels are arranged on the left and right positioning frames facing the positioning component. This technical solution positions the steel pipes using positioning plates, and by setting the positioning plates perpendicular and horizontally to the workbench, geometric constraints force the locking angle steels to maintain a preset welding angle, achieving three-dimensional positioning of the pipe curtain steel pipes and locking angle steels. The welding deviation is ≤2mm, solving the problems of "steel pipe swaying and angle loss of control" in traditional processes.

[0009] Further describing the aforementioned scheme, the left and right positioning frames each include a base and a column. The left positioning frame is equipped with a first positioning plate and a second positioning plate, while the right positioning frame is equipped with a third, fourth, and fifth positioning plate. The positioning frame adopts a "base + column" structure, with the column serving as the mounting carrier for the positioning plates. Different positioning types of latches are achieved by varying the number of positioning plates.

[0010] Further describing the aforementioned solution, the bottom of the first positioning plate is fixed to the base and is parallel to the column, with a distance of 5-20mm from the column; the second positioning plate is fixedly installed above the first positioning plate and is perpendicular to the column. The first positioning plate, parallel to the column, forms a vertical limiting groove to hold the vertical angle steel of the male connector; the second positioning plate, perpendicular to the column, forms a horizontal limiting surface to position the other angle steel of the male connector, and the two are combined to form the male connector. The welding angle error of the male connector is ≤5°, requiring no manual calibration, and the positioning time for a single set is reduced from the traditional 3 minutes to 30 seconds, increasing welding efficiency by 6 times.

[0011] Further describing the aforementioned scheme, the third, fourth, and fifth positioning plates are installed sequentially on the column from bottom to top, and are all perpendicular to the column. The verticality deviation of the welded double angle steel of the female buckle is ≤1.5mm, meeting the sealing requirement of ≤0.5mm for the pipe curtain splice gap, and increasing the flaw detection pass rate from the traditional 85% to 98%.

[0012] Furthermore, the worktable includes two parts connected by a positioning component. The positioning component is formed by welding two angle steels together to form a "U"-shaped positioning groove, which is set on the top of the worktable. By the close contact between the top of the groove wall and the outer wall of the steel pipe, the radial movement and rotation of the steel pipe are restricted, thereby achieving axial positioning.

[0013] According to one embodiment of this application, the base is provided with clamping plates at both ends to clamp the sides of the worktable. The clamping plates are provided with threaded holes, and tensioning components are installed in the threaded holes. The tensioning components are used to adjust the tightness between the base and the worktable. This technical solution allows for quick adjustment and fixation of the left and right positioning frames, and facilitates disassembly for rapid placement and removal of the steel pipe.

[0014] According to one embodiment of this application, the left positioning frame positions the two angle steels of the male connector using a first positioning plate and a second positioning plate, respectively; a third positioning plate positions one angle steel of the female connector, and a fourth and fifth positioning plates position the other angle steel of the female connector. A single platform is compatible with simultaneous processing of both male and female connectors, increasing the daily processing capacity from the traditional 15 sets to 40 sets, meeting the needs of batch construction projects.

[0015] According to one embodiment of this application, the workbench includes support legs, reinforcing rods, and a top rod. The support legs are welded below the top rods, and the two ends of the reinforcing rods are welded to the support legs and the top rods respectively to form a triangular structure. Utilizing the principle of triangular geometric stability, this enhances the resistance to deformation. During the welding process, the platform remains stable, the weld seam is uniformly formed, and the ultrasonic flaw detection failure rate is reduced from 15% to 2%, reducing quality defects caused by platform wobbling.

[0016] Compared with existing technologies, this utility model significantly improves the precision, quality, and efficiency of pipe curtain locking buckle processing through modular positioning and stable support design. The specific beneficial effects are as follows:

[0017] By using a composite positioning system of "U-shaped positioning groove + multi-dimensional positioning plate", the coaxiality error of the pipe curtain steel pipe is ≤3mm / 1m and the welding angle deviation of the locking angle steel is ≤1°, which improves the positioning accuracy by 80% compared with the traditional process and solves the problem of weld misalignment caused by inaccurate positioning.

[0018] When the triangular workbench support structure bears a load of ≥2t, the deformation is ≤3mm. Combined with the rigid constraint of the positioning frame, the defect rate of weld inclusions, porosity and other defects is reduced from 15% to below 2%, and the ultrasonic flaw detection pass rate is increased to over 98%, meeting the high sealing requirements of tunnel engineering.

[0019] The processing time for a single locking buckle has been reduced from the traditional 2 hours to 40 minutes, and the daily processing volume has increased from 15 sets to 40 sets. In addition, the positioning frame can be quickly adjusted through the clamping tensioner, enabling batch assembly line operation.

[0020] Using common materials such as I-beams and angle steel, the structure is easy to assemble and disassemble, with a reuse rate of over 90%, reducing costs by 30% compared to specialized equipment. It is also compatible with integrated processing of male / female connectors, meeting the rapid construction needs of underground utility tunnels and other projects. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the tube curtain connection provided for an embodiment of this utility model;

[0023] Figure 2 This is an overall schematic diagram of an embodiment of the present utility model;

[0024] Figure 3 A schematic diagram of a single-platform structure provided for an embodiment of this utility model;

[0025] Figure 4 This is a schematic diagram of the left and right positioning frames provided in an embodiment of the present utility model;

[0026] Figure 5 A schematic diagram of the left positioning frame structure provided in an embodiment of this utility model;

[0027] Figure 6 A front view diagram provided for an embodiment of this utility model;

[0028] Figure 7 This is a schematic diagram illustrating the use of this utility model according to an embodiment.

[0029] The following are the labeling elements in the figure:

[0030] 1. Workbench; 11. Support leg; 12. Reinforcing rod; 13. Positioning groove; 2. Left positioning frame; 21. Base; 211. Threaded hole; 212. Clamping plate; 22. Column; 23. First positioning plate; 24. Second positioning plate; 3. Right positioning frame; 31. Third positioning plate; 32. Fourth positioning plate; 33. Fifth positioning plate; 4. Steel pipe; 41. Male connector; 42. Female buckle; 5. Fastener.

[0031] The accompanying drawings have illustrated specific embodiments of the present invention, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art through reference to specific embodiments. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0033] To make the technical solution and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0034] The following is the version with annotations without parentheses:

[0035] Please see Figures 1-7 As shown, the simplified, standardized pipe curtain locking processing platform provided by this utility model consists of a workbench 1, a left positioning frame 2, a right positioning frame 3, and positioning components. The workbench 1 uses a square tube as the top rod, with support legs 11 welded below the top rod. The support legs 11 are 1.2 meters high, forming a rectangular support frame. Angle steel reinforcing rods 12 are welded between the support legs 11 and the top rod, forming a triangular stable structure to enhance the platform's resistance to deformation. Two angle steels are welded to the center of the top surface of the top rod, forming a U-shaped positioning groove 13. The groove width is set according to the outer diameter of the pipe curtain steel pipe 4, typically 5-10 mm larger than the pipe diameter, used for axial positioning of the steel pipe 4.

[0036] like Figure 3 , 4As shown, both the left positioning frame 2 and the right positioning frame 3 are composed of a base 21 and a column 22. In this embodiment, clamping plates 212 are welded to both ends of the base 21, and the opening width of the clamping plates 212 is adapted to the worktable 1. The column 22 is made of square tubing, with a height of 800-1000 mm, and is vertically welded to the base 21. Figure 5 As shown, two positioning plates are installed on the column 22 of the left positioning frame 2: the first positioning plate 23 is parallel to the column 22, its bottom is fixed to the base 21, and the distance between it and the column 22 is 5-20 mm; the second positioning plate 24 is fixed above the first positioning plate 23 and is perpendicular to the column 22. Three positioning plates are installed sequentially from top to bottom on the column 22 of the right positioning frame 3, all perpendicular to the column 22. All positioning plates are made of 5-10 mm thick angle steel.

[0037] During the welding of workbench 1, the first step is to assemble the top rod and support legs 11: four 1.2-meter-long angle steel support legs 11 are vertically welded to the four corners of the top rod. During welding, the perpendicularity of the support legs 11 to the top rod is calibrated using a right-angle ruler. Next, the reinforcing rod 12 is installed: designed with a triangular structure, angle steel is welded between each set of support legs 11 and the top rod. Before welding, the included angle is calibrated to 60° using an angle ruler, and the error in the length of the three sides is controlled within 2 mm. After welding, the area around the weld is hammered to relieve stress. Finally, the positioning groove 13 is welded: two angle steels are placed in a U-shape, with their bottom surfaces tightly fitted to the top surface of the top rod, using continuous weld seams.

[0038] In this embodiment, during installation, the base 21 is clamped to the two flanges of the worktable 1 by clamping plates 212. M12 bolts are inserted into the threaded holes 211 on the clamping plates 212 as tightening components 5. This invention uses tightening components 5 with screws and rings, which can be operated directly by hand or with a stick. During installation, align the clamping plate 212 of the base 21 of the left positioning frame 2 with the flange of the worktable 1, and tighten the bolts until the clamping plate 212 is tightly fitted to the worktable 1, ensuring the positioning frame is firmly fixed. Of course, in some embodiments, the left positioning frame 2 and the right positioning frame 3 may not have clamping plates 212; they can be directly welded to the worktable surface, or welding may not be necessary.

[0039] like Figure 6 , 7 As shown, when positioning the male head 41, two angle steels are included. First, position the lower angle steel by vertically inserting one side of the angle steel into the gap between the first positioning plate 23 and the column 22 of the left positioning frame 2. The left side of the vertical part of the angle steel abuts against the inner side of the column 22, and the bottom surface of the horizontal part of the angle steel abuts against the top of the first positioning plate 23. Then, the right end of the horizontal part of the angle steel abuts against the steel pipe 4 to complete the positioning. At this time, the tensioning parts 5 can be tightened, and the welding of the first angle steel of the male head 41 can begin.

[0040] When welding the second angle steel, the bottom surface of the horizontal part of the angle steel abuts against the top of the second positioning plate 24, and the vertical part of the angle steel abuts against the inner side of the column 22 to achieve horizontal and vertical positioning. After the right end of the horizontal part of the second positioning plate 24 abuts against the steel pipe 4, welding can begin.

[0041] While welding the male connector 41, the female connector 42 can be welded simultaneously.

[0042] When welding the female buckle 42, place the first angle steel on the third positioning plate 31, so that the horizontal part of the first angle steel abuts against the top of the third positioning plate 31 and the vertical part of the angle steel abuts against the inner side of the column 22 of the right positioning frame 3, so as to achieve horizontal and vertical positioning. Move the right positioning frame 3 to the left so that the horizontal part of the angle steel abuts against the steel pipe 4, and welding can begin.

[0043] Next, place the second angle steel between the fourth and fifth positioning plates 32 and 33, so that the horizontal part of the second angle steel abuts against the bottom of the fifth positioning plate 33 and the vertical part of the angle steel abuts against the inner side of the column 22 of the right positioning frame 3, so as to achieve horizontal and vertical positioning. Move the right positioning frame 3 to the left so that the horizontal part of the angle steel abuts against the steel pipe 4, and welding can begin.

[0044] After welding, a visual inspection is first performed: after removing the weld slag, observe whether the weld surface is uniform, and ensure there are no defects such as cracks, incomplete penetration, or undercut. The weld reinforcement should be controlled within 0-3 mm. Then, non-destructive testing is conducted: using a CTS-9008 ultrasonic flaw detector, 100% of the weld is inspected according to GB / T 11345-2013 standard, requiring a Class B inspection level and a defect assessment level no lower than Class III. In the dimensional calibration stage, the spacing between the locking angle steels is measured with a steel tape measure. The center distance deviation between the two angle steels of the male 41 lock should not exceed 2 mm, and the perpendicularity deviation of the female 42 vertical angle steel should not exceed 1.5 mm. Unqualified areas are corrected by flame straightening or repair welding until they meet the requirements.

[0045] After welding the male connector 41 and the female connector 42, push the pipe forward or backward, and remove the left positioning bracket 2 and the right positioning bracket 3 to process the next steel pipe 4.

[0046] This embodiment, through standardized structural design and process control, transforms the traditional method of pipe curtain interlocking processing from one relying on manual experience to a standardized operation based on mechanical positioning. This not only ensures welding accuracy and quality but also significantly improves construction efficiency, making it widely applicable in underground utility tunnels and other engineering projects. Those skilled in the art can adapt the structural parameters and process details to specific engineering needs without departing from the principles of this invention, thereby optimizing the actual application effect.

[0047] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the foregoing claims.

[0048] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element present. Conversely, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations. The terms "upper end," "lower end," "left side," "right side," "front end," "rear end," and similar expressions used herein refer to the positional relationship with reference to the accompanying drawings.

[0049] It should be understood that this invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this invention is limited only by the appended claims.

Claims

1. A simplified, standardized pipe curtain locking processing platform, characterized in that: Includes a workbench (1), on which a left positioning frame (2) and a right positioning frame (3) are installed. A positioning component of a positioning steel pipe (4) is installed between the left positioning frame (2) and the right positioning frame (3). The left positioning frame (2) and the right positioning frame (3) are provided with a number of positioning plates of positioning locking angle steel facing the positioning component.

2. The simplified, standardized pipe curtain locking processing platform according to claim 1, characterized in that: The left positioning frame (2) and the right positioning frame (3) include a base (21) and a column (22). The left positioning frame (2) is equipped with a first positioning plate (23) and a second positioning plate (24). The right positioning frame (3) is equipped with a third positioning plate (31), a fourth positioning plate (32), and a fifth positioning plate (33).

3. The simplified, standardized pipe curtain locking processing platform according to claim 2, characterized in that: The bottom of the first positioning plate (23) is fixed on the base (21) and is arranged parallel to the column (22), with a distance of 5-20mm from the column (22); the second positioning plate (24) is fixedly installed above the first positioning plate (23) and is arranged perpendicular to the column (22).

4. The simplified, standardized pipe curtain locking processing platform according to claim 2, characterized in that: The third positioning plate (31), the fourth positioning plate (32), and the fifth positioning plate (33) are installed on the column (22) from bottom to top, and are all set perpendicular to the column (22).

5. The simplified, standardized pipe curtain locking processing platform according to claim 1, characterized in that: The workbench (1) includes two parts, which are connected by a positioning component. The positioning component is formed by welding two angle steels together to form a "U"-shaped positioning groove (13), which is set on the top of the workbench (1).

6. The simplified, standardized pipe curtain locking processing platform according to claim 2, characterized in that: The base (21) is provided with clamping plates (212) at both ends to clamp the two sides of the workbench (1). The clamping plates (212) are provided with threaded holes (211). The threaded holes (211) are fitted with tensioning elements (5). The tension between the base (21) and the workbench (1) is adjusted by the tensioning elements (5).

7. A simplified, standardized pipe curtain locking processing platform according to claim 2, characterized in that: The left positioning frame (2) positions the two angle steels of the male head (41) respectively through the first positioning plate (23) and the second positioning plate (24); the third positioning plate (31) is used to position one angle steel of the female buckle (42); and the fourth positioning plate (32) and the fifth positioning plate (33) are used to position the other angle steel of the female buckle (42).

8. The simplified, standardized pipe curtain locking processing platform according to claim 1, characterized in that: The workbench (1) includes a support leg (11), a reinforcing rod (12), and a top rod. The support leg (11) is welded to the bottom of the top rod, and the two ends of the reinforcing rod (12) are welded to the support leg (11) and the top rod respectively to form a triangular structure.

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