Welded corrugated pipe with middle guide structure

Abstract

The utility model discloses a welded corrugated pipe with a middle guide structure. The welded corrugated pipe comprises a pipeline body and a guide mechanism, the left end and the right end of the pipeline body are fixedly connected with welding fixing pipe heads respectively; the guide mechanism comprises fixing blocks, fillet guide plates, guide limiting frames, nut grooves, screwing nuts, guide butt joint threaded grooves and nut grooves, the fixing blocks are fixedly connected to the outer arc faces of the two welding fixing pipe heads in a front-back symmetry mode, and the outer surfaces of the four fixing blocks are fixedly connected with the fillet guide plates correspondingly; the outer surfaces of the four fillet guide plates are slidably connected with the interior of a guide limiting frame, butt joint threaded grooves are formed in the sides, facing the center of the pipeline body, of the outer surfaces of the four fillet guide plates correspondingly, and nut grooves are evenly formed in the front side wall and the rear side wall of the front side of the guide limiting frame and the front side wall and the rear side wall of the rear side of the guide limiting frame correspondingly. The welded corrugated pipe with the middle guide structure is good in straightening effect and easy and convenient to operate.

Description

Technical Field

[0001] This utility model relates to the field of corrugated pipe technology, specifically a welded corrugated pipe with an intermediate guiding structure. Background Technology

[0002] A welded bellows is a stretchable, elastic element made from multiple layers of thin metal strips through processes such as welding. It is typically corrugated, like the bellows of an accordion, and can expand and contract axially.

[0003] In the existing process of installing welded corrugated pipes, most of the time the pipe head is picked up manually and welded to the designated position. During the welding process, the pipe body is manually held to prevent the pipe body from shifting abnormally due to uneven stretching and contraction, which would affect the work progress.

[0004] The manual straightening method for pipes has some problems in actual operation, such as cumbersome straightening operation and poor pipe restriction effect. To address these issues, we propose a welded corrugated pipe with an intermediate guiding structure. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a welded bellows with an intermediate straightening structure, which has a good straightening effect, is easy to operate, and can effectively solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a welded corrugated pipe with an intermediate guiding structure, comprising a pipe body and a guiding mechanism;

[0007] Pipe body: Welded fixed pipe heads are fixedly connected to its left and right ends respectively;

[0008] The guiding mechanism includes fixed blocks, rounded corner guide plates, guiding limit frames, nut grooves, tightening nuts, guiding mating thread grooves, and nut grooves. The fixed blocks are symmetrically fixed to the outer arc surfaces of two welded fixed pipe heads. Rounded corner guide plates are fixedly connected to the outer surfaces of the four fixed blocks respectively. The outer surfaces of the four rounded corner guide plates are slidably connected to the interior of a guiding limit frame. The outer surfaces of the four rounded corner guide plates have mating thread grooves on the side facing the center of the pipe body. The front and rear side walls of the guiding limit frame have evenly distributed nut grooves, and tightening nuts are inserted into the nut grooves. The front and rear sides of the guiding limit frame have evenly distributed nut grooves. The guiding effect is good and the operation is simple.

[0009] Furthermore, the guiding mechanism also includes a lifting frame, which is located at the upper end of the guiding and limiting frame. A lifting handle is fixedly connected to the upper end of the lifting frame, and the entire corrugated pipe can be moved freely by the lifting handle after straightening.

[0010] Furthermore, the front and rear sides of the guide and limiting frame are symmetrically provided with rounded corner grooves, and slide rods are slidably connected inside the four rounded corner grooves. Limiting blocks are fixedly connected to the ends of the four slide rods away from the pipe body. External limiting strips are symmetrically fixedly connected to the front and rear sides of the lifting frame, and the outer surfaces of the four limiting blocks are slidably connected to the interior of the external limiting strips located on the same side, providing a lateral limiting function.

[0011] Furthermore, the guiding mechanism also includes tightening bolts, which are threaded into the interior of four guiding mating threaded grooves. The four tightening bolts are respectively threaded into the interior threads of two longitudinally adjacent tightening nuts. The nuts of the tightening bolts are respectively located in the nut grooves corresponding to the longitudinal positions, thereby fixing the rounded corner guiding plate and the guiding limit frame.

[0012] Furthermore, flanges are fixedly connected to the left side of the outer arc surface of the left welded fixed pipe head and the right side of the outer arc surface of the right welded fixed pipe head, respectively, to achieve the function of fixed installation.

[0013] Furthermore, the height of the tightening bolt nut is less than the height of the nut groove to ensure smooth sliding of the limiting block.

[0014] Furthermore, the height of the nut groove is equal to the height of the tightened nut, ensuring the smooth sliding of the rounded corner guide plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This welded bellows with a central guiding structure has the following advantages:

[0016] The bellows is straightened by aligning two connecting rods, fixing both ends of the bellows and straightening the entire bellows to a straight line. The two connecting rods are then locked with bolts for easy welding and fixing later. The straightening effect is good and the operation is simple. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a partial structural diagram of the guiding mechanism of this utility model;

[0019] Figure 3 This is a partial structural diagram of the guiding mechanism of this utility model.

[0020] In the diagram: 1. Pipe body, 2. Welded and fixed pipe head, 3. Guiding mechanism, 31. Fixing block, 32. Rounded corner guide plate, 33. Guiding limit bracket, 34. Lifting bracket, 35. Nut groove, 36. Tightening nut, 37. Tightening bolt, 38. Guiding mating thread groove, 39. Nut groove, 4. External limit strip, 5. Limiting round block, 6. Flange, 7. Rounded corner groove. Detailed Implementation

[0021] 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, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-3 This embodiment provides a technical solution: a welded corrugated pipe with an intermediate guiding structure, including a pipe body 1 and a guiding mechanism 3;

[0023] Pipe body 1: Welded fixed pipe head 2 is fixedly connected to its left and right ends respectively. Flange 6 is fixedly connected to the left side of the outer arc surface of the left welded fixed pipe head 2 and the right side of the outer arc surface of the right welded fixed pipe head 2 respectively. When it is necessary to guide the pipe body 1 before welding the corrugated pipe, the distance between the two welded fixed pipe heads 2 can be manually adjusted.

[0024] The guiding mechanism 3 includes a fixing block 31, a rounded corner guide plate 32, a guiding limit frame 33, a nut groove 35, a tightening nut 36, a guiding mating thread groove 38, and a nut groove 39. The fixing blocks 31 are symmetrically fixed to the outer arc surfaces of two welded fixed pipe heads 2. The outer surfaces of the four fixing blocks 31 are respectively fixedly connected to rounded corner guide plates 32. The outer surfaces of the four rounded corner guide plates 32 are all slidably connected to the interior of a guiding limit frame 33. The outer surfaces of the four rounded corner guide plates 32 are respectively provided with mating thread grooves 38 on the side facing the center of the pipe body 1. The front and rear side walls of the guiding limit frame 33 are respectively provided with evenly distributed nut grooves 35. Tightening nuts 36 are inserted into the interior of the nut grooves 35. The front and rear sides of the positive limiting bracket 33 are respectively provided with evenly distributed nut grooves 39. The guiding mechanism 3 also includes a lifting bracket 34, which is located at the upper end of the guiding limiting bracket 33. A lifting handle is fixedly connected to the upper end of the lifting bracket 34. The front and rear sides of the guiding limiting bracket 33 are respectively provided with rounded corner grooves 7. Sliding rods are slidably connected inside the four rounded corner grooves 7. Limiting blocks 5 are fixedly connected to the ends of the four sliding rods away from the pipe body 1. External limiting strips 4 are fixedly fixedly connected to the front and rear sides of the lifting bracket 34. The outer surfaces of the four limiting blocks 5 are respectively slidably connected to the interior of the external limiting strips 4 located on the same side. The guiding mechanism 3 also includes tightening bolts 37, which are respectively threaded. Inside the four guiding threaded grooves 38, four tightening bolts 37 are respectively connected to the internal threads of two longitudinally adjacent tightening nuts 36. The nuts of the tightening bolts 37 are located in the nut grooves 39 corresponding to the longitudinal positions. The height of the nuts of the tightening bolts 37 is less than the height of the nut grooves 39, and the height of the nut grooves 35 is equal to the height of the tightening nuts 36. During this period, the rounded corner guide plate 32 slides to the designated position within the guiding limit frame 33. During this period, the four limit blocks 5 are in real time in contact with the inside of the outer limit strip 4 and the outer surface of the rounded corner guide plate 32 to prevent the rounded corner guide plate 32 from falling off the guiding limit frame 33. After adjusting to the designated position, the horizontal position of the rounded corner guide plate 32 is adjusted, and the four guiding threaded grooves 38 are aligned with the front and rear positions. The nut groove 39 and the tightening nut 36 are positioned one-to-one. The tightening bolt 37 is then screwed in using an external installation tool. At this point, the limiting block 5, in conjunction with the tightening bolt 37, laterally fixes the rounded corner guide plate 32 and the guide limiting bracket 33, ensuring the pipe body 1 is in a straight state. Then, the two welded fixed pipe ends 2 can be welded to the external pipeline one by one, completing the installation of the welded corrugated pipe. After installation, the guiding effect can be released, and the corrugations of the pipe body 1 are in a relaxed state, allowing normal use of the corrugated pipe. (During use, the lengths of the rounded corner guide plate 32 and the guide limiting bracket 33 can be customized, and during guiding, the pipe body 1 is in an extended state. When the pipe body 1 is in an extended state...)It is not prone to abnormal elongation, which could affect subsequent welding operations.

[0025] The working principle of the welded corrugated pipe with an intermediate guiding structure provided by this utility model is as follows: Before welding the corrugated pipe, when it is necessary to guide the pipe body 1, the distance between the two welded fixed pipe heads 2 can be manually adjusted. During this period, the rounded corner guide plate 32 slides to the designated position within the guiding limit frame 33. During this period, the four limiting round blocks 5 are in real time attached to the inside of the outer limiting strip 4 and the outer surface of the rounded corner guide plate 32 to prevent the rounded corner guide plate 32 from falling off from the guiding limit frame 33. After adjusting to the designated position, the horizontal position of the rounded corner guide plate 32 is adjusted, and the four guiding blocks... The threaded groove 38 corresponds one-to-one with the nut groove 39 and the tightening nut 36 at the front and rear positions. At this time, the tightening bolt 37 is screwed in using an external installation tool. At this time, the limiting block 5, together with the tightening bolt 37, horizontally fixes the rounded corner guide plate 32 and the guide limit bracket 33, thereby ensuring that the pipe body 1 is in a straight state. Then, the two welded fixed pipe heads 2 can be welded to the external pipeline one by one to complete the installation of the welded corrugated pipe. After the installation is completed, the guiding effect can be released. At this time, the corrugation of the pipe body 1 is in a relaxed state, and the corrugated pipe can be used normally.

[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A welded bellows with an intermediate guiding structure, characterized in that: It includes the pipe body (1) and the guiding mechanism (3); Pipe body (1): Its left and right ends are respectively fixedly connected with welded fixed pipe heads (2); The guiding mechanism (3) includes a fixing block (31), a rounded corner guiding plate (32), a guiding limit bracket (33), a nut groove (35), a tightening nut (36), a guiding mating thread groove (38), and a nut groove (39). The fixing blocks (31) are symmetrically fixed to the outer arc surfaces of the two welded fixing pipe heads (2). The outer surfaces of the four fixing blocks (31) are respectively fixedly connected to rounded corner guiding plates (32). The outer surfaces of the four rounded corner guiding plates (32) are all connected to a guiding limit bracket. The internal sliding connection of the frame (33) is provided. The outer surface of the four rounded corner guide plates (32) facing the center of the pipe body (1) is provided with a mating thread groove (38). The front side wall and the rear side wall of the guide limit frame (33) are provided with a uniformly distributed nut groove (35). The nut groove (35) is provided with a tightening nut (36). The front side and the rear side of the guide limit frame (33) are provided with a uniformly distributed nut groove (39).

2. A welded bellows with an intermediate guiding structure according to claim 1, characterized in that: The guiding mechanism (3) also includes a lifting frame (34), which is located at the upper end of the guiding limit frame (33), and a lifting handle is fixedly connected to the upper end of the lifting frame (34).

3. A welded bellows with an intermediate guiding structure according to claim 1, characterized in that: The front and rear sides of the guide and limiting frame (33) are respectively provided with rounded corner grooves (7), and the interior of the four rounded corner grooves (7) are respectively slidably connected with sliding rods. The ends of the four sliding rods away from the pipe body (1) are respectively fixedly connected with limiting blocks (5). The front and rear sides of the lifting frame (34) are respectively fixedly connected with external limiting strips (4), and the outer surfaces of the four limiting blocks (5) are respectively slidably connected with the interior of the external limiting strips (4) located on the same side.

4. A welded bellows with an intermediate guiding structure according to claim 1, characterized in that: The guiding mechanism (3) also includes a tightening bolt (37), which is threadedly connected to the inside of four guiding mating threaded grooves (38). The four tightening bolts (37) are respectively threadedly connected to the inside of two longitudinally adjacent tightening nuts (36). The nuts of the tightening bolts (37) are respectively located in the nut grooves (39) corresponding to the longitudinal positions.

5. A welded bellows with an intermediate guiding structure according to claim 1, characterized in that: Flanges (6) are fixedly connected to the outer arc surface of the left side of the welded fixed pipe head (2) and the outer arc surface of the right side of the welded fixed pipe head (2).

6. A welded bellows with an intermediate guiding structure according to claim 4, characterized in that: The height of the nut of the tightening bolt (37) is less than the height of the nut groove (39).

7. A welded bellows with an intermediate guiding structure according to claim 1, characterized in that: The height of the nut groove (35) is equal to the height of the tightening nut (36).

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