Elbow pipe capable of preventing corrosion by using polyethylene composite belt

Abstract

The invention discloses an anti-corrosion elbow pipe using a polyethylene composite belt, and belongs to the field of pipelines, the anti-corrosion elbow pipe comprises an elbow pipe main body and a pipe connecting mechanism, two straight pipelines are detachably connected to the two ends of the elbow pipe main body through the pipe connecting mechanism, and a supporting mechanism is arranged on the outer surface of the elbow pipe main body; bent pipe flanges are integrally formed at the top end and the right end of the bent pipe body, and a straight pipe flange is integrally formed at the end, close to the bent pipe body, of the straight pipeline. Through the structures such as gear and rack transmission and rack bar sliding in the pipe connecting mechanism, rapid connection and disassembly of the bent pipe body and the straight pipeline can be achieved, and parts are convenient to maintain and replace; in the dismounting process, the rubber ring set can be exposed, the aged rubber ring can be replaced regularly, and the sealing, leakage preventing and buffering effects are guaranteed; and the rubber ring group can be completely exposed during disassembly. And the aged rubber ring can be easily dismounted and replaced by personnel without complicated tools or professional skills, so that the maintenance time is shortened, and the maintenance cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of pipelines, in particular to a curved pipe which is anti-corrosive by using a polyethylene composite tape. Background Art

[0002] In the pipeline transportation system, the elbow is an important component connecting pipelines of different directions. Traditional elbows have many problems, and the connection between the elbow and the straight pipeline is the key node to ensure the normal operation of the system.

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

[0004] The elbow pipe, which uses polyethylene composite tape for corrosion protection, has been innovatively designed to address the above problems in order to meet the needs of modern pipeline systems for convenient installation, efficient maintenance, reliable sealing and structural stability. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a curved pipe using a polyethylene composite tape for corrosion protection, which solves the problems raised in the above-mentioned background technology.

[0006] Technical solution: To solve the above technical problems, according to one aspect of the present invention, more specifically, a pipe bend using polyethylene composite tape for corrosion protection comprises a pipe bend main body and a pipe connection mechanism, two straight pipes are detachably connected at both ends of the pipe bend main body through the pipe connection mechanism, a support mechanism is arranged on the outer surface of the pipe bend main body, a pipe bend flange is integrally formed at the top and right end of the pipe bend main body, a straight pipe flange is integrally formed at one end of the straight pipe close to the pipe bend main body, a rubber ring group is arranged between the straight pipe flange and the pipe bend main body; the pipe connection mechanism comprises an insert block and two ring frames, two tooth rods are fixed on the outer surface of the insert block, the ring frame is located on the outside of the pipe bend main body and the straight pipe, and the ring frame Two inner grooves are provided on the outer surface, and the end of the gear rod away from the plug block passes through the inner groove, and a swivel is rotatably connected to the outer surface of the ring frame, and a swivel rod is rotatably connected to the inner surface of the swivel above the gear rod, and a gear 2 is fixed to the outer surface of the swivel rod, and gear 3 is fixed to the outer surface of the swivel rod both in front and behind the gear 2, and a rack is meshingly connected below the gear 3, and four outer grooves are provided on the side of the ring frame away from the bent pipe body, and a clamping frame is rotatably connected to the inner surface of the outer groove, and a movable groove is provided inside the clamping frame, and a movable rod is movably connected to two adjacent movable grooves, and one end of the two racks away from the gear 3 is fixed to the outer surface of the movable rod.

[0007] Furthermore, the supporting mechanism includes two protective shells, the two protective shells are located outside the bent pipe body, and the inner sides of the outer surfaces of the two protective shells are commonly provided with a half-cylinder; the outer sides of the outer surfaces of the protective shells are integrally formed with a plug-in frame, and the outer surfaces of the two plug-in frames are commonly provided with a connecting frame, a support rod is fixed to the outer surface of the connecting frame, a mounting plate is fixed to the bottom end of the support rod, and a pin is commonly provided on the connecting frame and the inside of the two plug-in frames.

[0008] Furthermore, the bottom end of the plug block is a rectangular structure, and the bottom end of the plug block is plugged into the interior of the half cylinder.

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

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

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

[0012] Furthermore, the bottom end of the clamping frame fits 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, the two inner rubber rings form an annular structure, the two inner rubber rings are located on the inner sides of the two outer rubber rings, the outer surfaces of the inner rubber rings are integrally formed with buckles, the outer surfaces of the two outer rubber rings are provided with buckle holes, and the buckle's end away from the inner rubber ring passes through the inside of the buckle hole.

[0014] Furthermore, the outer surface of the elbow body is wrapped with a polyethylene composite tape.

[0015] The beneficial effects of the elbow pipe anticorrosive by using the polyethylene composite tape of the present invention are as follows: (1) Stable structure and extended service life: The gear rod and ring frame in the pipe connection mechanism form a special reinforcing rib structure, which effectively disperses stress and prevents the bending pipe body from deformation and cracking due to uneven force, greatly improving the structural strength and extending the service life.

[0016] (2) Convenient disassembly and replacement of rubber rings: The pipe connection mechanism is easy to operate. The elbow body and the straight pipe can be quickly disassembled by turning the swivel. At the same time, the rubber ring group is exposed, which is convenient for regular replacement of aging rubber rings and improves maintenance efficiency.

[0017] (3) Good sealing and buffering performance: The rubber ring group consists of an outer rubber ring and an inner rubber ring, which are connected by buckles and holes, and the gaps are staggered, which can provide good sealing, leak-proofing and buffering effects, ensuring the stable operation of the pipeline system.

[0018] (4) Convenient support and installation: The support mechanism protects and supports the main body of the bent pipe through the protective shell, half-tube, plug-in frame, connecting frame and other components, and can be fixed to the wall through the mounting plate, which is convenient for installation and removal. At the same time, the cooperation between the limit frame and the half-tube can keep the protective shell in a combined state, enhancing the support stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0020] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a cross-sectional structural schematic diagram of the present invention; Figure 3It is a structural schematic diagram of the pipe connection mechanism and the support mechanism in the present invention; Figure 4 It is a structural schematic diagram of the support mechanism in the present invention; Figure 5 It is a structural schematic diagram of the support mechanism and the elbow body in the present invention; Figure 6 It is a schematic diagram of the side cross-section structure of the support mechanism and the insert block in the present invention; Figure 7 For the present invention Figure 6 The schematic diagram of the structure after the enlargement of A in the middle; Figure 8 It is a schematic diagram of the structure of the plug block and the gear ring in the present invention; Fig. 9 It is a structural schematic diagram of the insert block and the limit frame in the present invention; Fig.10 It is a structural schematic diagram of the pipe connection mechanism in the present invention; Fig.11 It is a structural schematic diagram of the ring frame and the rotating ring in the present invention; Fig.12 For the present invention Figure 7 A schematic cross-sectional structure diagram of; Fig.13 It is a structural schematic diagram of the rubber ring group in the present invention; Fig.14 It is a schematic diagram of the side cross-section structure of the rubber ring group in the present invention.

[0021] In the figure: 1. bend pipe body; 2. pipe connection mechanism; 3. support mechanism; 4. straight pipe; 5. protective shell; 6. plug-in frame; 7. connecting frame; 8. support rod; 9. mounting plate; 10. half cylinder; 11. bend pipe flange; 12. rubber ring group; 13. plug-in block; 14. rotating frame; 15. gear ring; 16. bracket; 17. gear one; 18. screw rod; 19. limit frame; 20. gear rod; 21. ring frame; 22. inner groove; 23. swivel; 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. clamping hole; 36. buckle. DETAILED DESCRIPTION

[0022] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0023] In order to make the technical solution of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Reference Figure 1-Figure 14, a pipe bend using polyethylene composite tape for corrosion protection, comprising a pipe bend main body 1 and a pipe connection mechanism 2, two straight pipes 4 are detachably connected at both ends of the pipe bend main body 1 through the pipe connection mechanism 2, a support mechanism 3 is provided on the outer surface of the pipe bend main body 1, a pipe bend flange 11 is integrally formed at the top and right end of the pipe bend main body 1, a straight pipe flange 32 is integrally formed at one end of the straight pipe 4 close to the pipe bend main body 1, a rubber ring group 12 is provided between the straight pipe flange 32 and the pipe bend main body 1, the pipe bend main body 1 is protected on the outside by the support mechanism 3 and is fixedly installed on the wall; the pipe connection mechanism 2 enables the two ends of the pipe bend main body 1 to be quickly connected to the two straight pipes 4 and is convenient to disassemble, and the rubber ring group 12 is located between the pipe bend main body 1 and the straight pipe 4, which plays a sealing, leak-proof and buffering effect; the pipe connection mechanism 2 can be quickly disassembled and moved, so that the pipe bend main body 1 and the straight pipe 4 are disassembled, and the rubber ring group 12 is exposed, which is convenient for regular replacement of aging rubber rings; The pipe connection mechanism 2 includes an insert block 13 and two ring frames 21. Two gear rods 20 are fixed on the outer surface of the insert block 13. The ring frame 21 is located outside the elbow body 1 and the straight pipe 4. Two inner grooves 22 are provided on the outer surface of the ring frame 21. The end of the gear 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. A rotating rod 24 is rotatably connected to the upper part of the gear rod 20 inside the rotating ring 23. A gear 25 is fixed to the outer surface of the rotating rod 24. A gear 3 26 is fixed to the outer surface of the rotating rod 24 in front and behind the gear 25. A rack 27 is meshed and connected below the gear 3 26. Four outer grooves 28 are provided on the side of the ring frame 21 away from the elbow body 1. The inner part of the outer groove 28 rotates A clamping frame 29 is connected, and a movable groove 30 is formed inside the clamping frame 29. A movable rod 31 is movably connected inside two adjacent movable grooves 30. The ends of the two racks 27 away from the gear 3 26 are fixedly connected to the outer surface of the movable rod 31. The two racks 20 are connected to the inside of the ring frame 21 to form a special reinforcing rib structure, just like building a solid skeleton at the connection part between the elbow body 1 and the straight pipe 4. When the elbow body 1 is subjected to external pressure, impact force or internal fluid pressure fluctuation, it can effectively disperse stress and avoid stress concentration in a local area, thereby greatly improving the structural strength of the elbow body 1, reducing the risk of deformation and rupture of the elbow body 1 due to uneven force, and extending its service life; 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. 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.

[0025] Reference Figure 1-Figure 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; 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; 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; When disassembling, it is only necessary to rotate the gear ring 15 to rotate the two gears 17 and the two screws 18. The rotating screws 18 will cause the limit frame 19 to rise and no longer contact the surface of the half cylinder 10. At this time, the merging limit between the two half cylinders 10 will be lost. After removing the pin and the connecting frame 7, the two protective shells 5 can be disassembled.

[0026] Reference Fig.12 The outer surface of the gear rod 20 is provided with a plurality of tooth grooves, and the gear rod 20 is meshed and connected with the gear 2 25 through the tooth grooves. The inner surface of the rotating ring 23 is provided with a spiral groove, and the rotating ring 23 is meshed and connected with the gear 2 25 through the spiral grooves.

[0027] Reference Figure 2 , Fig.12 The bottom end of the clamp 29 is in contact with the outer surface of the straight pipe flange 32. The clamp 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 body 1 is wrapped with a polyethylene composite tape to improve the anti-corrosion effect.

[0028] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached 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 side of the outer surface of the two protective shells (5).

2. The anti-corrosion elbow pipe using polyethylene composite tape according to claim 1, characterized in that: 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).

3. The anti-corrosion elbow pipe using polyethylene composite tape according to claim 2, 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.

4. The anti-corrosion elbow pipe using polyethylene composite tape according to claim 3, 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).

5. The anti-corrosion elbow pipe using polyethylene composite tape according to claim 4, 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).

6. The anti-corrosion elbow pipe using polyethylene composite tape according to claim 5, 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).

7. The anti-corrosion elbow pipe using polyethylene composite tape according to claim 2, 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.

8. The anti-corrosion elbow pipe using polyethylene composite tape according to claim 2, characterized in that: The bottom end of the clamp frame (29) is in contact with the outer surface of the straight pipe flange (32).

9. 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).

10. 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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