An elbow pipe corrosion protected by polyethylene composite tape

Abstract

The present invention discloses an elbow pipe anti-corroded by a polyethylene composite tape, belonging to the field of pipelines, which includes an elbow pipe main body and a pipe connection mechanism. Two straight pipelines are detachably connected to both ends of the elbow pipe main body through the pipe connection mechanism. A support mechanism is arranged on the outer surface of the elbow pipe main body. Elbow flanges are integrally formed at the top end and the right end of the elbow pipe main body, and straight pipe flanges are integrally formed at one end of the straight pipelines close to the elbow pipe main body. Through structures such as gear-rack transmission and sliding of the rack in the pipe connection mechanism, the present invention can achieve the quick connection and disassembly of the elbow pipe main body and the straight pipelines, facilitating the maintenance and replacement of components; during the disassembly process of the present invention, the rubber ring group can be exposed, facilitating the regular replacement of aging rubber rings to ensure the sealing and leak prevention and buffering effects; during disassembly, the rubber ring group can be completely exposed. Without complex tools or professional skills, personnel can easily remove and replace the aging rubber rings, shortening the maintenance time and reducing the maintenance cost.

Description

Technical Field

[0001] The present invention relates to the technical field of pipelines, and particularly to an elbow pipe anti-corroded by using a polyethylene composite tape. Background Art

[0002] In a pipeline transportation system, an elbow pipe is an important component for connecting pipelines with different orientations. There are many problems with traditional elbow pipes, and the connection part between the elbow pipe and the straight pipeline is a key node to ensure the normal operation of the system.

[0003] In traditional pipeline connection methods, as an important component for sealing and buffering, once the rubber ring ages or is damaged, the replacement process is extremely difficult. Due to the unreasonable design of the connection structure, it is often necessary to remove a large number of surrounding pipeline components, use professional tools, and consume a large amount of manpower, material resources, and time. This not only affects the normal operation of the pipeline system but also may lead to production interruption and cause economic losses. Moreover, in some special environments, such as narrow spaces or harsh working conditions, it is even more difficult to replace the rubber ring. In addition, the connection method between the elbow pipe and the straight pipeline is complex and inconvenient to disassemble, resulting in high maintenance costs and low efficiency. At the same time, if the support and installation methods of the elbow pipe are unreasonable, its stability and safety will be affected.

[0004] However, the elbow pipe anti-corroded by using a polyethylene composite tape of the present invention has carried out innovative designs for the above problems to meet the requirements of modern pipeline systems for convenient installation, efficient maintenance, reliable sealing, and stable structure. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides an elbow pipe anti-corroded by using a polyethylene composite tape, which solves the problems raised in the above background art.

[0006] Technical solution: To solve the above technical problems, according to one aspect of the present invention, more specifically, it is an elbow pipe protected against corrosion by a polyethylene composite tape, including an elbow pipe main body and a pipe connection mechanism. Two straight pipes are detachably connected to both ends of the elbow pipe main body through the pipe connection mechanism. A support mechanism is arranged on the outer surface of the elbow pipe main body. Elbow flanges are integrally formed at the top and right end of the elbow pipe main body. A straight pipe flange is integrally formed at one end of the straight pipe close to the elbow pipe main body. A rubber ring group is arranged between the straight pipe flange and the elbow pipe main body; the pipe connection mechanism includes an insertion block and two ring frames. Two tooth rods are fixed on the outer surface of the insertion block. The ring frames are located outside the elbow pipe main body and the straight pipes. Two inner grooves are opened on the outer surface of the ring frames. One end of the tooth rod away from the insertion block penetrates into the inner groove. A rotating ring is rotatably connected to the outer surface of the ring frame. A rotating rod is rotatably connected inside the rotating ring above the tooth rod. A second gear is fixed on the outer surface of the rotating rod. Third gears are fixed on the outer surface of the rotating rod in front of and behind the second gear. A rack is meshed and connected below the third gear. Four outer grooves are opened on one side of the ring frame away from the elbow pipe main body. A clamping frame is rotatably connected inside the outer groove. An activity groove is penetrated inside the clamping frame. An activity rod is movably connected inside two adjacent activity grooves. One end of each of the two racks away from the third gear is fixed to the outer surface of the activity rod.

[0007] Furthermore, the support mechanism includes two protective shells. The two protective shells are located outside the elbow pipe main body. A semi-cylinder is jointly arranged on the inner sides of the outer surfaces of the two protective shells; insertion frames are integrally formed on the outer sides of the outer surfaces of the protective shells. A connecting frame is jointly arranged on the outer surfaces of the two insertion frames. A support rod is fixed on the outer surface of the connecting frame. An installation plate is fixed at the bottom end of the support rod. A plug pin is jointly arranged inside the connecting frame and the two insertion frames.

[0008] Furthermore, the bottom end of the insertion block is of a rectangular structure, and the bottom end of the insertion block is inserted into the semi-cylinder.

[0009] Furthermore, rotating frames are symmetrically fixed on the outer surface of the insertion block. A toothed ring is rotatably connected inside the two rotating frames. Brackets are fixed on the front and rear of the outer surface of the insertion block. A first gear is rotatably connected to the upper surface of the bracket. A screw rod is fixed at the top of the first gear. A limiting frame is threadedly connected to the outer surface of the screw rod. The outer surface of the bracket is fitted with the inner surface of the limiting frame. The inner surface of the toothed ring is meshed and connected with the two first gears.

[0010] Furthermore, the limiting frame is of a U-shaped structure, and the inner side wall of the limiting frame is fitted with the outer surface of the semi-cylinder.

[0011] Furthermore, a plurality of tooth grooves are formed on the outer surface of the toothed rod, and the toothed rod is meshed and connected with the second gear through the tooth grooves. A spiral groove is formed on the inner surface of the rotating ring, and the rotating ring is meshed and connected with the second gear through the spiral groove.

[0012] Furthermore, the bottom end of the clamping frame is attached to the outer surface of the straight pipe flange.

[0013] Furthermore, the rubber ring group includes two outer rubber rings and two inner rubber rings. The two outer rubber rings form an annular structure, and the two inner rubber rings form an annular structure. The two inner rubber rings are located inside the two outer rubber rings. A buckle is integrally formed on the outer surface of the inner rubber ring, and a card hole is formed on the outer surface of the two outer rubber rings. One end of the buckle away from the inner rubber ring penetrates into the card hole.

[0014] Furthermore, a polyethylene composite tape is wound around the outer surface of the elbow main body.

[0015] The beneficial effects of the elbow using the polyethylene composite tape for anti-corrosion in the present invention are as follows:

[0016] (1) Structural stability and extended service life: The toothed rod and the ring frame in the pipe connection mechanism form a special reinforcing rib structure, which effectively disperses stress, avoids deformation and cracking of the elbow main body due to uneven stress, greatly improves the structural strength, and extends the service life.

[0017] (2) Convenient disassembly and rubber ring replacement: The pipe connection mechanism is easy to operate. Rotating the rotating ring can realize the rapid disassembly of the elbow main body and the straight pipe. At the same time, the rubber ring group is exposed, which is convenient for regularly replacing the aging rubber rings and improving the maintenance efficiency.

[0018] (3) Good sealing and buffering performance: The rubber ring group is composed of outer rubber rings and inner rubber rings, and is connected by buckles and card holes. The gaps are misaligned, which can achieve good sealing and leakage prevention and buffering effects, ensuring the stable operation of the pipeline system.

[0019] (4) Convenient support and installation: The support mechanism realizes the protection and support of the elbow main body through components such as the protective shell, the half cylinder, the insertion frame, and the connecting frame, and can be fixed to the wall through the mounting plate. The installation and disassembly are relatively convenient. At the same time, the cooperation between the limiting frame and the half cylinder can keep the protective shell in a combined state, enhancing the support stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The following further describes the present invention in detail with reference to the drawings and specific implementation methods.

[0021] Figure 1 is the structural schematic diagram of the present invention;

[0022] Figure 2 is the sectional structural schematic diagram of the present invention;

[0023] Figure 3 Schematic structural diagram of the pipe connection mechanism and the support mechanism in the present invention;

[0024] Figure 4 Schematic structural diagram of the support mechanism in the present invention;

[0025] Figure 5 Schematic structural diagram of the support mechanism and the bent pipe main body in the present invention;

[0026] Figure 6 Schematic side-sectional structural diagram of the support mechanism and the insertion block in the present invention;

[0027] Figure 7 In the present invention Figure 6 Enlarged structural diagram at position A;

[0028] Figure 8 Schematic structural diagram of the insertion block and the toothed ring in the present invention;

[0029] Figure 9 Schematic structural diagram of the insertion block and the limiting frame in the present invention;

[0030] Figure 10 Schematic structural diagram of the pipe connection mechanism in the present invention;

[0031] Figure 11 Schematic structural diagram of the ring frame and the rotating ring in the present invention;

[0032] Figure 12 In the present invention Figure 7 Cross-sectional structural diagram;

[0033] Figure 13 Schematic structural diagram of the rubber ring group in the present invention;

[0034] Figure 14 Schematic side-sectional structural diagram of the rubber ring group in the present invention.

[0035] In the figure: 1, bent pipe main body; 2, pipe connection mechanism; 3, support mechanism; 4, straight pipe; 5, protective shell; 6, insertion frame; 7, connecting frame; 8, support rod; 9, mounting plate; 10, half cylinder; 11, bent pipe flange; 12, rubber ring group; 13, insertion block; 14, rotating frame; 15, toothed ring; 16, bracket; 17, gear one; 18, screw; 19, limiting frame; 20, toothed rod; 21, ring frame; 22, inner groove; 23, rotating ring; 24, rotating rod; 25, gear two; 26, gear three; 27, rack; 28, outer groove; 29, clamping frame; 30, movable groove; 31, movable rod; 32, straight pipe flange; 33, outer rubber ring; 34, inner rubber ring; 35, card hole; 36, buckle. Detailed implementation manners

[0036] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0037] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] Referring to Figures 1 - 14 , an elbow pipe using a polyethylene composite tape for anti-corrosion, includes an elbow pipe main body 1 and a pipe connection mechanism 2. Two straight pipes 4 are detachably connected to both ends of the elbow pipe main body 1 through the pipe connection mechanism 2. A support mechanism 3 is arranged on the outer surface of the elbow pipe main body 1. Elbow flanges 11 are integrally formed at the top and the right end of the elbow pipe main body 1. A straight pipe flange 32 is integrally formed at one end of the straight pipe 4 close to the elbow pipe main body 1. A rubber ring group 12 is arranged between the straight pipe flange 32 and the elbow pipe main body 1. The elbow pipe main body 1 is protected externally through the support mechanism 3 and is fixedly installed with the wall; and the pipe connection mechanism 2 enables the two ends of the elbow pipe main body 1 to be quickly connected to the two straight pipes 4 and is convenient for disassembly. The rubber ring group 12 is located between the elbow pipe main body 1 and the straight pipe 4, playing a role in sealing and leak prevention and buffering; the pipe connection mechanism 2 can be quickly disassembled and moved, so that the elbow pipe main body 1 and the straight pipe 4 are disassembled, and the rubber ring group 12 is exposed, facilitating the regular replacement of the aged rubber rings;

[0039] The pipe connection mechanism 2 includes an insertion block 13 and two ring frames 21. Two tooth bars 20 are fixed on the outer surface of the insertion block 13. The ring frames 21 are located outside the elbow pipe main body 1 and the straight pipe 4. Two inner grooves 22 are opened on the outer surface of the ring frames 21. One end of the tooth bar 20 away from the insertion block 13 penetrates into the interior of the inner groove 22. A rotating ring 23 is rotatably connected to the outer surface of the ring frames 21. A rotating rod 24 is rotatably connected inside the rotating ring 23 above the tooth bar 20. A second gear 25 is fixed on the outer surface of the rotating rod 24. Third gears 26 are fixed on the outer surface of the rotating rod 24 in front of and behind the second gear 25. A rack 27 is meshed and connected below the third gear 26. Four outer grooves 28 are opened on one side of the ring frames 21 away from the elbow pipe main body 1. A clamping frame 29 is rotatably connected inside the outer groove 28. An activity groove 30 is penetrated and opened inside the clamping frame 29. An activity rod 31 is jointly movably connected inside two adjacent activity grooves 30. One end of each of the two racks 27 away from the third gear 26 is fixed to the outer surface of the activity rod 31; the two tooth bars 20 are connected to the inside of the ring frames 21 to form a special reinforcing rib structure, just like building a solid framework at the connection part of the elbow pipe main body 1 and the straight pipe 4; when the elbow pipe main body 1 is subjected to external pressure, impact force or internal fluid pressure fluctuation, the stress can be effectively dispersed, avoiding stress concentration in a local area, thereby greatly improving the structural strength of the elbow pipe main body 1, reducing the risk of deformation and rupture of the elbow pipe main body 1 due to uneven stress, and prolonging its service life;

[0040] The rubber ring assembly 12 includes two outer rubber rings 33 and two inner rubber rings 34. The two outer rubber rings 33 form an annular structure, and the two inner rubber rings 34 form an annular structure. The two inner rubber rings 34 are located inside the two outer rubber rings 33. The outer surfaces of the inner rubber rings 34 are integrally formed with buckles 36. The outer surfaces of the two outer rubber rings 33 are provided with a clamping hole 35. One end of the buckle 36 away from the inner rubber ring 34 penetrates into the inside of the clamping hole 35.

[0041] When in use, the personnel only need to rotate the corresponding swivel ring 23, and the spiral texture of the inner wall of the swivel ring 23 rotates the gear 25, and the rack 27 drives the movable rod 31 to move under the transmission of the two gears 3 26, and the movable groove 30 is pressed against the clamp frame 29 to rotate away from the straight pipe flange 32. At the same time, the rotating gear 25 will make the ring frame 21 slide along the surface of the toothed rod 20 toward the plug block 13 through the engagement with the toothed rod 20, so that the opposite ends of the bent pipe body 1 and the straight pipe 4 are exposed, so that the two are disassembled and the rubber ring group 12 is exposed. The personnel can violently destroy and dismantle the aged rubber ring group 12; and install two inner rubber rings 34 on one side, and then install two outer rubber rings 33 in a staggered manner to make the gap staggered. When the buckle 36 is connected with the clamp hole 35, the new rubber ring group 12 maintains a stable ring shape. After the swivel ring 23 is rotated in the opposite direction to reset the ring frame 21, the new rubber ring group 12 is wrapped, so as to achieve the effect of quickly replacing the rubber ring.

[0042] Reference Figures 1 - 14 The supporting mechanism 3 includes two protective shells 5, the two protective shells 5 are located outside the elbow body 1, and the inner sides of the outer surfaces of the two protective shells 5 are jointly provided with a half-tube 10; the outer surfaces of the outer surfaces of the protective shells 5 are integrally formed with a plug-in frame 6, and the outer surfaces of the two plug-in frames 6 are jointly provided with a connecting frame 7, and a support rod 8 is fixed to the outer surface of the connecting frame 7, and a mounting plate 9 is fixed to the bottom end of the support rod 8, and a latch is jointly provided inside the connecting frame 7 and the two plug-in frames 6; the two protective shells 5 are fixed to the external wall by the mounting plate 9 and bolts, and the two protective shells 5 wrap the elbow body 1 to protect and support it;

[0043] The bottom end of the plug block 13 is a rectangular structure, and the bottom end of the plug block 13 is plugged into the interior of the half cylinder 10;

[0044] Rotating racks 14 are symmetrically fixed on the outer surface of the plug block 13, and a gear ring 15 is connected to the two rotating racks 14 for common rotation. Brackets 16 are fixed to the front and rear of the outer surface of the plug block 13, and a gear 17 is rotatably connected to the upper surface of the bracket 16. A screw 18 is fixed to the top of the gear 17, and the outer surface of the screw 18 is threadedly connected to a limiting rack 19. The outer surface of the bracket 16 fits with the inner surface of the limiting rack 19, and the inner surface of the gear ring 15 is meshed with the two gears 17. The limiting rack 19 is a U-shaped structure, and the inner side wall of the limiting rack 19 fits with the outer surface of the semi-cylinder 10; the two limiting racks 19 located on both sides of the two semi-cylinders 10 can keep the protective shell 5 in a merged state;

[0045] When disassembling, just rotate the toothed ring 15 to make the two gears 17 and the two screws 18 rotate. The rotating screw 18 causes the limit frame 19 to rise and no longer contact the surface of the half cylinder 10. At this time, the combination limit between the two half cylinders 10 will be lost. Then, after removing the pin and the connecting frame 7, the two protective shells 5 can be disassembled.

[0046] Refer to Figure 12 , a plurality of tooth grooves are provided on the outer surface of the toothed rod 20. The toothed rod 20 is meshed and connected with the second gear 25 through the tooth grooves. A spiral groove is provided on the inner surface of the rotating ring 23. The rotating ring 23 is meshed and connected with the second gear 25 through the spiral groove.

[0047] Refer to Figure 2 , Figure 12 , the bottom end of the clamping frame 29 is attached to the outer surface of the straight pipe flange 32. The clamping frame 29 pushes against the straight pipe flange 32 to limit the straight pipe 4 and prevent it from moving outward; the outer surface of the elbow main body 1 is wound with a polyethylene composite tape to improve the anti-corrosion effect.

[0048] The above-described embodiments merely represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. A pipe bend using a polyethylene composite tape for corrosion protection, comprising a pipe bend body (1) and a pipe connection mechanism (2), characterized in that: Two straight pipes (4) are detachably connected at both ends of the elbow body (1) through the pipe connection mechanism (2); a support mechanism (3) is provided on the outer surface of the elbow body (1); the top and right ends of the elbow body (1) are integrally formed with elbow flanges (11); one end of the straight pipe (4) close to the elbow body (1) is integrally formed with a straight pipe flange (32); a rubber ring group (12) is provided between the straight pipe flange (32) and the elbow body (1); The pipe connection mechanism (2) comprises an insert block (13) and two ring frames (21), two toothed rods (20) are fixed on the outer surface of the insert block (13), the ring frame (21) is located outside the curved pipe body (1) and the straight pipe (4), two inner grooves (22) are formed on the outer surface of the ring frame (21), one end of the toothed rod (20) away from the insert block (13) penetrates into the inner groove (22), a swivel (23) is rotatably connected to the outer surface of the ring frame (21), and a swivel rod (24) is rotatably connected to the inner surface of the swivel (23) located above the toothed rod (20); The support mechanism (3) comprises two protective shells (5), the two protective shells (5) are located outside the bent pipe body (1), and a half cylinder (10) is commonly provided on the inner sides of the outer surfaces of the two protective shells (5); A second gear (25) is fixed to the outer surface of the rotating rod (24); a third gear (26) is fixed to the outer surface of the rotating rod (24) at the front and rear of the second gear (25); a rack (27) is meshingly connected to the lower part of the third gear (26); four outer grooves (28) are provided on the side of the ring frame (21) away from the curved pipe body (1); a clamping frame (29) is rotatably connected to the inner part of the outer groove (28); a movable groove (30) is penetrated through the inner part of the clamping frame (29); a movable rod (31) is movably connected to the inner parts of two adjacent movable grooves (30); and one end of the two racks (27) away from the third gear (26) is fixedly connected to the outer surface of the movable rod (31).

2. The anti-corrosion elbow pipe using polyethylene composite tape according to claim 1, characterized in that: The outer surface of the protective shell (5) is integrally formed with a plug-in frame (6), the outer surfaces of the two plug-in frames (6) are jointly provided with a connecting frame (7), the outer surface of the connecting frame (7) is fixed with a support rod (8), the bottom end of the support rod (8) is fixed with a mounting plate (9), and the connecting frame (7) and the two plug-in frames (6) are jointly provided with a latch inside.

3. The anti-corrosion elbow pipe using polyethylene composite tape according to claim 2, characterized in that: The bottom end of the plug block (13) is a rectangular structure, and the bottom end of the plug block (13) is plugged into the interior of the half cylinder (10).

4. The anti-corrosion elbow pipe using polyethylene composite tape according to claim 3, characterized in that: A rotating frame (14) is symmetrically fixed on the outer surface of the plug block (13), and a gear ring (15) is rotatably connected inside the two rotating frames (14). Brackets (16) are fixed on the front and rear sides of the outer surface of the plug block (13), and a gear one (17) is rotatably connected on the upper surface of the bracket (16). A screw rod (18) is fixed on the top of the gear one (17), and the outer surface of the screw rod (18) is threadedly connected to a limiting frame (19). The outer surface of the bracket (16) is in contact with the inner surface of the limiting frame (19), and the inner surface of the gear ring (15) is meshingly connected to the two gears one (17).

5. The anti-corrosion elbow pipe using polyethylene composite tape according to claim 4, characterized in that: The limiting frame (19) is a U-shaped structure, and the inner side wall of the limiting frame (19) is in contact with the outer surface of the half cylinder (10).

6. The anti-corrosion elbow pipe using polyethylene composite tape according to claim 1, characterized in that: The outer surface of the gear rod (20) is provided with a plurality of tooth grooves, and the gear rod (20) is meshedly connected with the second gear (25) via the tooth grooves; the inner surface of the rotating ring (23) is provided with a spiral groove, and the rotating ring (23) is meshedly connected with the second gear (25) via the spiral grooves.

7. The anti-corrosion elbow pipe using polyethylene composite tape according to claim 1, characterized in that: The bottom end of the clamp frame (29) is in contact with the outer surface of the straight pipe flange (32).

8. The anti-corrosion elbow pipe using polyethylene composite tape according to claim 1, characterized in that: The rubber ring group (12) comprises two outer rubber rings (33) and two inner rubber rings (34), the two outer rubber rings (33) forming an annular structure, the two inner rubber rings (34) forming an annular structure, the two inner rubber rings (34) being located inside the two outer rubber rings (33), the outer surfaces of the inner rubber rings (34) being integrally formed with buckles (36), the outer surfaces of the two outer rubber rings (33) being provided with buckle holes (35), the buckle (36) having an end away from the inner rubber rings (34) penetrating into the inside of the buckle hole (35).

9. The anti-corrosion elbow pipe using polyethylene composite tape according to claim 1, characterized in that: The outer surface of the elbow body (1) is wrapped with a polyethylene composite tape.

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