High-pressure-resistant pipeline sealing joint convenient to machine

Abstract

The utility model relates to the technical field of pipeline sealing joints, and discloses a high-pressure-resistant pipeline sealing joint convenient to process, which comprises a joint pipe, flanges are fixedly connected to the left end and the right end of the outside of the joint pipe, rubber rings are fixedly connected to the far sides of the flanges, and connecting plates are fixedly connected to the left side and the right side of the bottom of the joint pipe. A first fixing rod is fixedly connected to the far side of the connecting plate, two connecting rings are rotatably connected to the outer portion of the first fixing rod, protective shells are fixedly connected to the outer portions of the connecting rings, first fixing blocks are fixedly connected to the front sides of the two protective shells, and second fixing blocks are fixedly connected to the rear sides of the other two protective shells. A fixing assembly is arranged in the second fixing block, and an extrusion assembly is arranged at the top of the connector pipe. According to the utility model, the protective shell is additionally arranged outside the flange, so that the corrosion and rusting of bolts of the flange are reduced, and the service life of the joint in an outdoor environment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline sealing joints, in particular to a high-pressure resistant pipeline sealing joint which is easy to process. Background Art

[0002] A high-pressure pipe sealing joint that is easy to process usually adopts a flange joint. The flange joint is a commonly used pipe connection method. The flanges at both ends are connected together by bolts to form a sealed connection point. The flange joint has a simple structure and can be easily disassembled and replaced.

[0003] After searching, the Chinese patent document announcement number: CN219159773U discloses an oil pipeline sealing joint. The staff needs to open the sealing joint. First, they twist down the positioning bolt on the upper end of the first fixing plate to separate the first fixing plate from the second fixing plate, and the first fixing ring from the second fixing ring. Then, they pull the handle on the upper end of the upper shell body, pull out the second protrusion at the bottom of the upper shell body from the second groove, and separate the first protrusion on the upper surface of the lower shell body from the first groove. In this way, the upper shell body and the lower shell body of the sealing joint can be separated, and the inside of the sealing joint can be inspected and repaired to avoid arbitrarily replacing the sealing joint and causing waste of resources.

[0004] The beneficial effects of the above patent specification mention that "it is convenient to inspect and repair the inside of the sealing joint, avoiding arbitrary replacement of the sealing joint and causing waste of resources." Although the above patent can conveniently inspect and repair the joint, most of the high-pressure resistant sealing joints in the prior art use flange connections, and the bolts inside the flange are easily corroded by environmental factors. Therefore, in response to the above shortcomings, we have proposed a high-pressure resistant pipe sealing joint that is easy to process. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a high-pressure resistant pipe sealing joint that is easy to process, aiming to improve the problems in the prior art of insufficient sealing force, poor sealing effect and easy corrosion of bolts on the flange in outdoor environments.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A high-pressure resistant pipe sealing joint that is easy to process, comprising a joint pipe, flanges are fixedly connected to the left and right ends of the outside of the joint pipe, a rubber ring is fixedly connected to the far side of the flange, connecting plates are fixedly connected to the left and right sides of the bottom of the joint pipe, a fixing rod 1 is fixedly connected to the far side of the connecting plate, the fixing rod 1 is rotatably connected to two connecting rings on the outside, a protective shell is fixedly connected to the outside of the connecting ring, wherein the front sides of two of the protective shells are fixedly connected to fixing blocks 1, and the rear sides of the other two protective shells are fixedly connected to fixing blocks 2, a fixing assembly is arranged inside the fixing block 2, and an extrusion assembly is arranged on the top of the joint pipe.

[0008] By adding protective shells on both sides of the joint pipe, the two shells are disassembled and fixed through the fixing components inside the protective shell, so that the flange at the joint is protected conveniently and quickly, corrosion is reduced, and the service life is increased.

[0009] As a further description of the above technical solution:

[0010] The fixing assembly includes a clamping rod, a cavity one is provided inside the fixing block two, a movable plate one is slidably connected inside the cavity one, a clamping rod is fixedly connected inside the movable plate one, a cavity two is provided inside the fixing block one, a movable plate two is slidably connected inside the cavity two, a limiting rod is fixedly connected inside the movable plate two, a spring is sleeved on the outside of the limiting rod, and a clamping slot is provided on the top front side of the fixing block two.

[0011] By sliding the clamp rod into the cavity at the bottom of the limit rod, the empty groove of the clamp rod matches the limit rod. Under the reaction force of the spring, the limit rod falls into the empty groove of the clamp rod, fixing the two protective shells, which can provide effective protection for the flange.

[0012] As a further description of the above technical solution:

[0013] The clamping rod is slidably connected to the interior of the second cavity, and the exterior of the limiting rod is slidably connected to the interior of the clamping slot.

[0014] The limiting rod can be separated from and engaged with the clamping rod by sliding. When the clamping rod is separated from the second cavity, the two protective shells can be separated, which is convenient for installation and disassembly.

[0015] As a further description of the above technical solution:

[0016] One end of the spring is fixedly connected to the top of the second movable plate, and the other end of the spring is fixedly connected to the top of the second cavity.

[0017] Through the reaction force of the spring, the limiting rod is subjected to the reaction force of the spring and slides into the inside of the card slot to form a card-engaging fixation.

[0018] As a further description of the above technical solution:

[0019] The extrusion assembly includes two fixed rods, the adjacent side of the two fixed rods is rotatably connected to a connecting shaft, the outside of the connecting shaft is fixedly connected to an eccentric wheel, the adjacent sides of the two eccentric wheels are respectively fixedly connected to two pressing plates, and the distant sides of the two eccentric wheels are respectively fixedly connected to two extrusion plates.

[0020] When the pressing plate rotates downward, the extrusion plate on the eccentric wheel is driven to move downward and backward, thereby squeezing the pipe more forcefully, making the sealing ring in the pipe fit more closely and reducing the gap.

[0021] As a further description of the above technical solution:

[0022] The bottom of the second fixing rod is fixedly connected to the top of the joint pipe.

[0023] The fixing rod at the top is supported by the joint pipe to provide supporting force for the extrusion assembly.

[0024] As a further description of the above technical solution:

[0025] The bottom of one of the extrusion plates is slidably connected with a pipeline, and the right side of the pipeline is in contact with the left side of the joint pipe.

[0026] When the pipe and the joint pipe come into contact, extrusion is performed to better improve the sealing efficiency of the extruded pipe and the joint.

[0027] As a further description of the above technical solution:

[0028] The outer portion of the limiting rod is slidably connected to the inner portion of the second cavity, and the outer portion of the clamping rod is slidably connected to the inner portion of the first cavity.

[0029] The limiting rod also slides inside the second cavity, and can be engaged with the clamping rod sliding inside the second cavity.

[0030] The utility model has the following beneficial effects:

[0031] 1. In the utility model, the clamping rod slides inside the second cavity, and the limiting rod inside the second cavity slides inside the clamping groove on the clamping rod through a spring to form a fixation, thereby realizing the opening and closing of the two protective shells, protecting the bolts inside the flange, and improving the service life of the bolts.

[0032] 2. In the utility model, the eccentric wheel is driven to rotate by the pressing plate, thereby driving the extrusion plate on the eccentric wheel to extrude toward the rear side, implementing better extrusion sealing on the pipeline, and then fixed by bolts to ensure that the connection on both sides of the flange is tight, further enhancing the sealing performance and reducing the risk of leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A three-dimensional diagram of a high-pressure resistant pipeline sealing joint that is easy to process proposed by the utility model;

[0034] Figure 2 This is a structural schematic diagram of a fixing block 1 of a high-pressure resistant pipeline sealing joint that is easy to process and is proposed by the utility model;

[0035] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0036] Figure 4 The utility model provides a structural schematic diagram of an extruded plate of a high-pressure resistant pipeline sealing joint which is easy to process.

[0037] Legend:

[0038] 1. Connecting pipe; 2. Flange; 3. Rubber ring; 4. Pipe; 5. Connecting plate; 6. Fixed rod 1; 7. Connecting ring; 8. Protective shell; 9. Fixed block 1; 10. Fixed block 2; 11. Cavity 1; 12. Clamping rod; 13. Movable plate 1; 14. Cavity 2; 15. Limiting rod; 16. Movable plate 2; 17. Spring; 18. Clamping groove; 19. Fixed rod 2; 20. Connecting shaft; 21. Eccentric wheel; 22. Pressing plate; 23. Extrusion plate. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] Reference Figure 1 , Figure 2 and Figure 4The utility model provides an embodiment: a high-pressure pipeline sealing joint that is easy to process, including a joint pipe 1, the joint pipe 1 is usually made of metal and has good corrosion resistance and high-pressure performance. The left and right ends of the outside of the joint pipe 1 are fixedly connected with flanges 2, and multiple bolt holes are evenly distributed inside the flange 2. A rubber ring 3 is fixedly connected to the far side of the flange 2, and the rubber ring 3 is used to seal the pipeline 4. The left and right sides of the bottom of the joint pipe 1 are fixedly connected with connecting plates 5, and the connecting plate 5 provides support for the protective shell 8. The far side of the connecting plate 5 is fixedly connected with a fixing rod 1 6, and the outside of the fixing rod 1 6 is rotatably connected to two connecting rings 7. The outside of the connecting ring 7 is fixedly connected with a protective shell 8. The protective shell 8 is usually also made of metal and can better cope with the outdoor environment. The front sides of the two protective shells 8 are fixedly connected with a fixing block 1 9, and the rear sides of the other two protective shells 8 are fixedly connected with a fixing block 2 10. The fixing block 1 9 and the fixing block 2 10 are used to connect the two protective shells 8. The fixing block 2 10 is provided with a fixing component inside, and the top of the joint pipe 1 is provided with an extrusion component.

[0041] Reference Figure 2 The fixing assembly includes a clamping rod 12, which slides inside the two cavities and is used to connect the two fixed blocks. A cavity 11 is arranged inside the fixed block 10, and a movable plate 13 is slidably connected inside the cavity 11. The clamping rod 12 is fixedly connected inside the movable plate 13. The movable plate 13 can limit the clamping rod 12 to only slide within the cavity 11. A cavity 14 is arranged inside the fixed block 19, and a movable plate 16 is slidably connected inside the cavity 14. The movable plate 16 can slide in the cavity 14 to squeeze the spring 17 inside the cavity 14. The movable plate 16 is fixedly connected inside the limiting rod 15, and the outer sleeve of the limiting rod 15 is provided. There is a spring 17, and the limit rod 15 is used to fix and connect with the card rod 12. A card slot 18 is opened on the front side of the top of the fixed block 10. When the limit rod 15 falls into the card slot 18, the fixation is completed, the card rod 12 is slidably connected to the inside of the cavity 2 14, and the outside of the limit rod 15 is slidably connected to the inside of the card slot 18. One end of the spring 17 is fixedly connected to the top of the movable plate 2 16, and the other end of the spring 17 is fixedly connected to the top of the cavity 2 14. When both ends of the spring 17 are fixed, one end slides, and the spring 17 will be deformed to generate a reaction force. The outside of the limit rod 15 is slidably connected to the inside of the cavity 2 14, and the outside of the card rod 12 is slidably connected to the inside of the cavity 11.

[0042] Reference Figure 1 and Figure 4The extrusion assembly includes a fixed rod 19, and a connecting shaft 20 is rotatably connected to the adjacent side of the fixed rod 19, and the fixed rod 19 and the eccentric wheel 21 are connected through the connecting shaft 20. The eccentric wheel 21 is fixedly connected to the outside of the connecting shaft 20. Two pressing plates 22 are fixedly connected to the adjacent sides of the two eccentric wheels 21, and the pressing plates 22 are the source of extrusion power. Two extrusion plates 23 are fixedly connected to the distant sides of the two eccentric wheels 21, and the extrusion plates 23 directly act on the pipeline 4 to apply extrusion force to it. The bottom of the fixed rod 19 The part is fixedly connected to the top of the joint pipe 1, and the bottom of one of the extrusion plates 23 is slidably connected with a pipe 4, and the right side of the pipe 4 contacts the left side of the joint pipe 1. The pipe 4 slides on the joint pipe 1 to facilitate the extrusion of the rubber ring 3 for sealing. The outside of the limit rod 15 is slidably connected to the inside of the second cavity 14, and the outside of the clamping rod 12 is slidably connected to the inside of the first cavity 11. The clamping rod 12 slides in the two cavities at the same time, and then the clamping rod 12 is limited by the limit rod 15, so as to fix the two protective shells 8.

[0043] Working principle: First, the staff aligns the position of the joint pipe 1 with the pipe 4, and then presses the pressing plate 22 downward to drive the eccentric wheel 21 to rotate around the connecting shaft 20, and further drives the extrusion plate 23 on the eccentric wheel 21 to move. At this time, the extrusion plate 23 will squeeze the pipe 4 and the rubber ring 3 inside the flange 2 to seal, reduce the gap, and then fix it with the bolts on the flange 2. The extrusion seal fixation can ensure that the rubber ring 3 is in complete contact with the pipe 4 to form an effective seal.

[0044] Secondly, loosen the extrusion plate 23 from the flange 2, rotate the fixing block 19 and the fixing block 2 10 around the fixing rod 1 6 to the top, and lift the limit rod 15 upward. At this time, the movable plate 2 16 outside the limit rod 15 will apply an extrusion force to the spring 17, and then slide the clamping rod 12 inside the cavity 2 14 until the slot 18 on the clamping rod 12 matches the limit rod 15. Then release the limit rod 15, and the reaction force of the spring 17 will squeeze the limit rod 15 downward into the slot 18 to complete the fixation. By fixing the protective shell 8 on the flange 2, the bolts inside the flange 2 can be prevented from rusting and stripping due to rain and moisture in the outdoor environment, thereby extending the service life of the pipe 4 joint and improving the integrity of the next maintenance use. Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-pressure resistant pipeline sealing joint that is easy to process, comprising a joint pipe (1), characterized in that: The left and right ends of the outside of the joint pipe (1) are fixedly connected to flanges (2), the far side of the flange (2) is fixedly connected to a rubber ring (3), the left and right sides of the bottom of the joint pipe (1) are fixedly connected to connecting plates (5), the far side of the connecting plate (5) is fixedly connected to a fixing rod (6), the outside of the fixing rod (6) is rotatably connected to two connecting rings (7), the outside of the connecting ring (7) is fixedly connected to a protective shell (8), wherein the front sides of two of the protective shells (8) are fixedly connected to a fixing block (9), and the rear sides of the other two of the protective shells (8) are fixedly connected to a fixing block (10), a fixing assembly is arranged inside the fixing block (10), and an extrusion assembly is arranged on the top of the joint pipe (1).

2. The easy-to-process high-pressure resistant pipe sealing joint according to claim 1, characterized in that: The fixing assembly comprises a clamping rod (12), a cavity one (11) is arranged inside the fixing block two (10), a movable plate one (13) is slidably connected inside the cavity one (11), the clamping rod (12) is fixedly connected inside the movable plate one (13), a cavity two (14) is arranged inside the fixing block one (9), a movable plate two (16) is slidably connected inside the cavity two (14), a limiting rod (15) is fixedly connected inside the movable plate two (16), a spring (17) is sleeved on the outside of the limiting rod (15), and a clamping groove (18) is provided on the top front side of the fixing block two (10).

3. The easy-to-process high-pressure resistant pipe sealing joint according to claim 2, characterized in that: The clamping rod (12) is slidably connected to the inside of the second cavity (14), and the outside of the limiting rod (15) is slidably connected to the inside of the clamping slot (18).

4. The easy-to-process high-pressure resistant pipe sealing joint according to claim 2, characterized in that: One end of the spring (17) is fixedly connected to the top of the second movable plate (16), and the other end of the spring (17) is fixedly connected to the top of the second cavity (14).

5. The easy-to-process high-pressure resistant pipe sealing joint according to claim 1, characterized in that: The extrusion assembly comprises a second fixing rod (19), the adjacent side of the second fixing rod (19) is rotatably connected to a connecting shaft (20), the outside of the connecting shaft (20) is fixedly connected to an eccentric wheel (21), the adjacent sides of the two eccentric wheels (21) are respectively fixedly connected to two pressing plates (22), and the distant sides of the two eccentric wheels (21) are respectively fixedly connected to two extrusion plates (23).

6. The easy-to-process high-pressure resistant pipe sealing joint according to claim 5, characterized in that: The bottom of the second fixing rod (19) is fixedly connected to the top of the joint pipe (1).

7. The easy-to-process high-pressure resistant pipe sealing joint according to claim 5, characterized in that: The bottom of one of the extrusion plates (23) is slidably connected to a pipe (4), and the right side of the pipe (4) is in contact with the left side of the joint pipe (1).

8. The easy-to-process high-pressure resistant pipe sealing joint according to claim 2, characterized in that: The outside of the limiting rod (15) is slidably connected to the inside of the second cavity (14), and the outside of the clamping rod (12) is slidably connected to the inside of the first cavity (11).

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