A high strength welded pipe

Abstract

The present invention belongs to the technical field of welded pipes, and discloses a high-strength welded pipe, including two welded pipe bodies, a fixing frame and two arc-shaped plates, and the two arc-shaped plates are wrapped between the two welded pipe bodies, one end of the two arc-shaped plates are fixedly connected with a connecting plate, and the two connecting plates are detachably connected, the interior of the fixing frame is provided with a first adjustment mechanism for driving the two arc-shaped plates to move relative to each other, and the upper and lower sides of each arc-shaped plate are provided with a protective mechanism for reinforcing the two welded pipe bodies. The present invention can wrap the gap between the two welded pipe bodies with the two arc-shaped plates, and at the same time, the positioning rod will be inserted into the corresponding positioning groove, so that the positioning rod strengthens the surface of the welded pipe body, prevents the longitudinal movement of the two welded pipe bodies, better limits the longitudinal position of the welded pipe body, and can also prevent the circumferential rotation between the two welded pipe bodies, so that the two welded pipe bodies become a stable whole.

Description

Technical Field

[0001] The invention belongs to the technical field of welded pipes, in particular to a high-strength welded pipe. Background Art

[0002] As we all know, welded steel pipes are also called welded pipes. They are made by welding steel plates or strips after curling and forming. The length is usually six meters. The production process of welded steel pipes is simple, the production efficiency is high, the varieties and specifications are many, and the equipment investment is small, but the general strength is lower than that of seamless steel pipes. The production process of straight seam welded pipes is simple, the production efficiency is high, the cost is low, and the development is relatively fast.

[0003] According to the patent number CN219432658U, a high-strength welded pipe is disclosed, including a first welded pipe body, a second welded pipe body, a pipe body, a first reinforcement layer and an arc block, the second welded pipe body is arranged below the first welded pipe body, the inner wall of the pipe body is arranged with a first reinforcement layer, the bottom of the first welded pipe body is arranged with an insert block, a slot is provided at the contact position between the insert block and the second welded pipe body, an arc block is arranged outside the connection between the first welded pipe body and the second welded pipe body, and a locking nut is arranged on the limiting screw. The utility model, through the setting of the insert block and the slot, aligns the insert block on the first welded pipe body with the slot position on the second welded pipe body for clamping connection, then wraps the connection between the first welded pipe body and the second welded pipe body through the arc block, and finally locks and fixes through the limiting screw and the locking nut, thereby ensuring the stability of the connection between the first welded pipe body and the second welded pipe body. However, in the implementation of the above solution, the first welded pipe and the second welded pipe are simply fixed by an arc block, so that there is no other positioning component between the two welded pipes, which easily causes longitudinal movement between the two welded pipes, which not only increases the gap between the two welded pipes, but also reduces the strength between the two welded pipes. To this end, we provide a high-strength welded pipe to solve the above problems. Summary of the invention

[0004] In order to solve the problems raised in the above-mentioned background technology, the present invention provides a high-strength welded pipe, which has the advantages of strengthening the surface of the welded pipe body, preventing the longitudinal movement of the two welded pipe bodies, longitudinally limiting the welded pipe bodies, and also preventing the circumferential rotation between the two welded pipe bodies, so that the two welded pipe bodies become a stable whole.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-strength welded pipe, comprising two welded pipe bodies, a fixed frame and two arc-shaped plates, and the two arc-shaped plates are both wrapped between the two welded pipe bodies, one end of the two arc-shaped plates are fixedly connected with a connecting plate, and the two connecting plates are detachably connected, a first adjusting mechanism for driving the two arc-shaped plates to move relative to each other is arranged inside the fixed frame, and a protective mechanism for reinforcing the two welded pipe bodies is arranged on the upper and lower sides of each of the arc-shaped plates, which includes a positioning groove opened on the surface of the welded pipe body and a positioning rod movably connected to the arc-shaped plate, and the positioning rod is inserted into the positioning groove, and a second adjusting mechanism for controlling the lifting and lowering of the upper and lower positioning rods is arranged inside each of the arc-shaped plates.

[0006] The surfaces of the two welding pipe bodies are provided with limiting grooves, the inner wall of each of the arc-shaped plates is fixedly connected to two limiting rings, and the two limiting rings are respectively inserted into the two limiting grooves, the positioning rods and the positioning grooves are both provided in a plurality, and reinforcing ribs are fixedly connected between each adjacent positioning rod, and the reinforcing ribs are provided in a plurality, the first adjusting mechanism comprises a first bidirectional screw rotatably connected to the inner wall of the fixed frame, one end of the first bidirectional screw passes through the fixed frame and is fixedly connected to a turning handle, the surface of the first bidirectional screw is threadedly sleeved with two relative moving blocks, and the two moving blocks are respectively connected to the surfaces of the two arc-shaped plates, the two moving blocks are both slidably arranged in the fixed frame, and the moving block is located at one end of the arc-shaped plate.

[0007] The second adjusting mechanism includes an installation cavity opened in the middle of the arc plate and a second bidirectional screw rotatably arranged in the installation cavity, both ends of the second bidirectional screw are threadedly sleeved with lifting plates, the two lifting plates are respectively connected to the upper and lower positioning rods, the inner wall of the installation cavity is fixedly connected to two positioning plates, and the second bidirectional screw is rotatably connected to the inside of the two positioning plates, the middle part of the arc plate is fixedly connected to two extension plates, the two extension plates are rotatably connected with a first gear, the middle part of the second bidirectional screw is fixedly connected to a second gear, and the second gear is meshed with the first gear.

[0008] In the above technical solution, preferably, the two arc-shaped plates are symmetrical to each other and matched with the surface of the welded pipe body, and a sealing ring is provided on the inner wall of each arc-shaped plate.

[0009] In the above technical solution, preferably, the two connecting plates are connected by a bolt assembly.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. The present invention can wrap the gap between the two welded pipe bodies with the two arc plates through the coordinated setting of the fixed frame, two connecting plates, two arc plates, the protective mechanism and the first adjustment mechanism. At the same time, the positioning rod will be inserted into the corresponding positioning groove, so that the positioning rod strengthens the surface of the welded pipe body, prevents the longitudinal movement of the two welded pipe bodies, better limits the longitudinal position of the welded pipe bodies, and can also prevent the circumferential rotation between the two welded pipe bodies, so that the two welded pipe bodies become a stable whole. 2. The present invention can control the two lifting plates to approach each other by rotating the second bidirectional screw after the positioning rod is inserted into the positioning groove through the setting of the second adjustment mechanism, and then pull the upper and lower positioning rods to approach each other, so that the two welded pipe bodies are in close contact, thereby ensuring the connection sealing between the two welded pipe bodies, and the second bidirectional screw can play a role in preventing the lifting plates from sliding, so that the longitudinal movement between the two welded pipe bodies can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the present invention;

[0013] Figure 2 It is a partial cross-sectional view of the present invention;

[0014] Figure 3 It is a schematic diagram of the structure of two welded pipe bodies of the present invention;

[0015] Figure 4 It is a structural schematic diagram of the curved plate of the present invention;

[0016] Figure 5 It is a structural schematic diagram of the positioning rod of the present invention;

[0017] Figure 6 For the present invention Figure 1 A magnified schematic diagram of the structure at center A;

[0018] Figure 7 For the present invention Figure 2 The enlarged schematic diagram of the structure at B in the middle. In the figure: 1, welding pipe body; 2, fixing frame; 21, turning handle; 22, first bidirectional screw; 23, moving block; 3, connecting plate; 41, positioning rod; 42, reinforcing rib; 43, positioning groove; 5, arc plate; 51, limiting groove; 52, limiting ring; 71, installation cavity; 72, second bidirectional screw; 73, second gear; 74, positioning plate; 75, lifting plate; 76, extension plate; 77, first gear. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] like Figures 1 to 7 As shown, the present invention provides a high-strength welded pipe, comprising two welded pipe bodies 1, a fixing frame 2 and two arc-shaped plates 5, and the two arc-shaped plates 5 are both wrapped between the two welded pipe bodies 1, the fixing frame 2 is arranged on one side of the two arc-shaped plates 5, and one end of the two arc-shaped plates 5 is arranged on one side of the fixing frame 2, one end of the two arc-shaped plates 5 is fixedly connected with a connecting plate 3, and the two connecting plates 3 are detachably connected, when the two arc-shaped plates 5 wrap the gap between the two welded pipe bodies 1, they can be fixed by the two connecting plates 3, a first adjusting mechanism for driving the two arc-shaped plates 5 to move relative to each other is arranged inside the fixing frame 2, and the first adjusting mechanism can realize the adjustment movement of the two arc-shaped plates 5 so as to contact and fix the other ends of the two arc-shaped plates 5, and the upper and lower sides of each arc-shaped plate 5 are provided with protective guards for reinforcing the two welded pipe bodies 1 The mechanism comprises a positioning groove 43 provided on the surface of the welding pipe body 1 and a positioning rod 41 movably connected to the arc plate 5, and the positioning rod 41 is inserted into the positioning groove 43, and each arc plate 5 is provided with a second adjusting mechanism for controlling the lifting and lowering of the upper and lower positioning rods 41. Through the setting of the above structure, when the two arc plates 5 are wrapped around the surfaces of the two welding pipe bodies 1, the positioning rod 41 will be inserted into the corresponding positioning groove 43 at the same time. At this time, the second adjusting mechanism can be used to make the upper and lower positioning rods 41 close to each other, thereby enhancing the stability between the two welding pipe bodies 1, and the positioning rod 41 can also strengthen the surface of the welding pipe body 1, prevent the longitudinal movement of the two welding pipe bodies 1, better limit the longitudinal position of the welding pipe body 1, and prevent the circumferential rotation between the two welding pipe bodies 1, so that the two welding pipe bodies 1 become a stable whole.

[0021] like Figure 3 , Figure 4 As shown, the surfaces of the two welding pipe bodies 1 are provided with limiting grooves 51, the inner wall of each arc plate 5 is fixedly connected with two limiting rings 52, and the two limiting rings 52 are respectively inserted into the two limiting grooves 51. Through the setting of the limiting grooves 51 and the limiting rings 52, the sealing of the arc plate 5 to the welding pipe body 1 can be further strengthened, and the longitudinal movement between the two welding pipe bodies 1 can also be avoided.

[0022] like Figure 1 , Figure 2 , Figure 3 , Figure 5As shown, the positioning rods 41 and the positioning grooves 43 are both provided in plurality, and reinforcing ribs 42 are fixedly connected between each adjacent positioning rod 41, and the reinforcing ribs 42 are provided in plurality, which can further improve the connection tightness between the two welded pipe bodies 1, and also strengthen the connection between the two welded pipe bodies 1, and effectively prevent the connection between the two welded pipe bodies 1 from deformation.

[0023] like Figure 1 As shown, the first adjustment mechanism includes a first bidirectional screw 22 rotatably connected to the inner wall of the fixed frame 2, one end of the first bidirectional screw 22 passes through the fixed frame 2 and is fixedly connected to a turning handle 21, and two relative moving blocks 23 are threadedly sleeved on the surface of the first bidirectional screw 22, and the two moving blocks 23 are respectively connected to the surfaces of the two arc plates 5. The rotation of the turning handle 21 will drive the first bidirectional screw 22 to rotate, so that the rotation of the first bidirectional screw 22 controls the relative movement of the two moving blocks 23, so as to facilitate the operation of the two arc plates 5 by personnel, so that the personnel only needs to hold the fixed frame 2 with one hand and rotate the turning handle 21 with the other hand, so that the two arc plates 5 can be wrapped and fixed to the surfaces of the two welding pipe bodies 1 in turn, and the operation is more convenient.

[0024] like Figure 1 , Figure 4 As shown, the two moving blocks 23 are slidably set in the fixed frame 2, and the moving block 23 is located at one end of the arc plate 5. When the moving block 23 moves to the two ends of the fixed frame 2 through the rotation of the first bidirectional screw 22, there will be enough space between the two arc plates 5 to place the two welding pipe bodies 1.

[0025] like Figure 1 , Figure 2 , Figure 4 As shown, the two arc plates 5 are symmetrical to each other and are adapted to the surface of the welded pipe body 1, and a sealing ring is provided on the inner wall of each arc plate 5. When the two arc plates 5 wrap the two welded pipe bodies 1, the sealing ring inside them seals the gap between the two welded pipe bodies 1, thereby ensuring the normal connection and use of the two welded pipe bodies 1.

[0026] like Figure 1 , Figure 2 As shown, the two connecting plates 3 are connected by a bolt assembly. When the two arc plates 5 are squeezed and contacted with each other through two moving blocks 23, the two connecting plates 3 can be fixed by the bolt assembly to ensure that both ends of the two arc plates 5 can be stably fixed, thereby effectively ensuring the tightness between the two welded pipe bodies 1.

[0027] like Figure 4 , Figure 7As shown, the second adjustment mechanism includes an installation cavity 71 opened in the middle of the arc plate 5 and a second bidirectional screw 72 rotatably arranged in the installation cavity 71. Both ends of the second bidirectional screw 72 are threadedly sleeved with lifting plates 75. The two lifting plates 75 are respectively connected to the upper and lower positioning rods 41. Through the setting of the above structure, when the positioning rod 41 is inserted into the positioning groove 43, the two lifting plates 75 can be controlled to approach each other by rotating the second bidirectional screw 72, and then the upper and lower positioning rods 41 are pulled closer to each other, so that the two welding pipe bodies 1 are in close contact, thereby ensuring the connection sealing between the two welding pipe bodies 1, and the second bidirectional screw 72 can play a role in preventing the lifting plates 75 from sliding, thereby preventing the longitudinal movement between the two welding pipe bodies 1.

[0028] like Figure 7 As shown, the inner wall of the installation cavity 71 is fixedly connected to two positioning plates 74, and the second bidirectional screw 72 is rotatably connected inside the two positioning plates 74. Through the setting of the positioning plates 74, the rotation stability of the second bidirectional screw 72 can be guaranteed and it can be positioned.

[0029] like Figure 6 As shown, two extension plates 76 are fixedly connected to the middle part of the arc plate 5, and a first gear 77 is rotatably connected between the two extension plates 76. A second gear 73 is fixedly connected to the middle part of the second bidirectional screw 72, and the second gear 73 is meshed with the first gear 77. The first gear 77 extends into the installation cavity 71 to ensure that the rotation of the first gear 77 drives the second gear 73 to rotate, so that personnel can control the rotation of the second bidirectional screw 72 from the outside of the arc plate 5, and further realize the relative movement of the two lifting plates 75.

[0030] The working principle and use process of the present invention are as follows: when in use, firstly, the two arc plates 5 are respectively located at the front and rear of the two welding pipe bodies 1, and then the personnel only need to hold the fixing frame 2 with one hand and rotate the handle 21 with the other hand to wrap and fix the two arc plates 5 on the surfaces of the two welding pipe bodies 1 in turn, and the operation is more convenient. After the two arc plates 5 wrap and fix the two welding pipe bodies 1, the positioning rod 41 will also be inserted into the corresponding positioning groove 43, and the limiting ring 52 will also be inserted into the corresponding limiting groove 51 to ensure the stability of the two arc plates 5 and avoid sliding up and down. Then, the two connecting plates 3 are fixed by the bolt assembly to ensure that the two arc plates 5 Both ends can be stably fixed, effectively ensuring the tightness between the two welded pipe bodies 1, and the two lifting plates 75 are controlled to approach each other by rotating the second bidirectional screw 72, thereby pulling the upper and lower positioning rods 41 closer to each other, so that the two welded pipe bodies 1 are in close contact, thereby ensuring the connection sealing between the two welded pipe bodies 1, and the second bidirectional screw 72 can play a role in preventing the lifting plate 75 from sliding, thereby avoiding longitudinal movement between the two welded pipe bodies 1, better limiting the longitudinal position of the welded pipe bodies 1, and also preventing the circumferential rotation between the two welded pipe bodies 1, so that the two welded pipe bodies 1 become a stable whole.

[0031] The electrical components appearing in this article are all connected to the external main controller and 220V mains electricity through a transformer, and the main controller can be a conventional known device for controlling a computer, etc. The electrical components provided by the present invention are only used for the technical solution according to the structural characteristics of the product. The product will be adjusted and modified after purchase to make it more compatible with and in line with the technical solution of the present invention. It is a technical solution for the best application of the technical solution. The model of the product can be replaced and modified according to the required technical parameters. It is well known to those skilled in the art. Therefore, those skilled in the art can clearly obtain the corresponding use effect through the technical solution provided by the present invention. Although the embodiments of the present invention have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A high-strength welded pipe, comprising two welded pipe bodies (1), characterized in that: It also includes a fixed frame (2) and two arc plates (5), and the two arc plates (5) are wrapped between the two welding pipe bodies (1), one end of the two arc plates (5) is fixedly connected to a connecting plate (3), and the two connecting plates (3) are detachably connected, the fixing frame (2) is provided with a first adjustment mechanism for driving the two arc plates (5) to move relative to each other, and the upper and lower sides of each arc plate (5) are provided with a protective mechanism for reinforcing the two welding pipe bodies (1), which includes a positioning groove (43) provided on the surface of the welding pipe body (1) and a positioning rod (41) movably connected to the arc plate (5), and the positioning rod (41) is inserted into the positioning groove (43), and each arc plate (5) is provided with a second adjustment mechanism for controlling the lifting of the upper and lower positioning rods (41); The surfaces of the two welding pipe bodies (1) are provided with limiting grooves (51), the inner wall of each arc-shaped plate (5) is fixedly connected with two limiting rings (52), and the two limiting rings (52) are respectively inserted into the two limiting grooves (51), the positioning rods (41) and the positioning grooves (43) are both provided in a plurality, and reinforcing ribs (42) are fixedly connected between each adjacent positioning rod (41), and the reinforcing ribs (42) are provided in a plurality, the first adjustment mechanism comprises a first bidirectional screw rod (22) rotatably connected to the inner wall of the fixed frame (2), one end of the first bidirectional screw rod (22) passes through the fixed frame (2) and is fixedly connected with a turning handle (21), the surface of the first bidirectional screw rod (22) is threadedly sleeved with two opposing moving blocks (23), and the two moving blocks (23) are respectively connected to the surfaces of the two arc-shaped plates (5), the two moving blocks (23) are both slidably arranged in the fixed frame (2), and the moving block (23) is located at one end of the arc-shaped plate (5); The second adjustment mechanism comprises a mounting cavity (71) provided in the middle of the arc-shaped plate (5) and a second bidirectional screw (72) rotatably arranged in the mounting cavity (71); both ends of the second bidirectional screw (72) are threadedly sleeved with lifting plates (75); the two lifting plates (75) are respectively connected to the upper and lower positioning rods (41); the inner wall of the mounting cavity (71) is fixedly connected to two positioning plates (74); the second bidirectional screw (72) is rotatably connected inside the two positioning plates (74); the middle of the arc-shaped plate (5) is fixedly connected to two extension plates (76); a first gear (77) is rotatably connected between the two extension plates (76); the middle of the second bidirectional screw (72) is fixedly connected to a second gear (73); and the second gear (73) is meshed with the first gear (77).

2. A high-strength welded pipe according to claim 1, characterized in that: The two arc-shaped plates (5) are symmetrical to each other and are adapted to the surface of the welded pipe body (1), and a sealing ring is provided on the inner wall of each arc-shaped plate (5).

3. A high-strength welded pipe according to claim 1, characterized in that: The two connecting plates (3) are connected via a bolt assembly.

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