An electrolytic sealing ring, a sealing ring interface connection device capable of strain relaxation creep and a method of using the same

Abstract

The present invention relates to the technical field of pipeline connection structures, and specifically to an electrolytic sealing ring, a sealing ring interface connection device capable of strain relaxation and creep, and a method for using the same. The sealing ring interface connection device capable of strain relaxation and creep, and a method for using the same, comprise: an extrusion assembly, the extrusion assembly is mounted on a No. 2 pipe, comprises a connecting cylinder arranged on the No. 2 pipe, an elastic extrusion piece is arranged in the connecting cylinder, when the No. 1 pipe is connected to the No. 2 pipe, the elastic extrusion piece cooperates with the No. 1 pipe, and can force the sealing ring to fit with the No. 2 pipe; the extrusion assembly also comprises an adjustment assembly, the adjustment assembly is arranged on the No. 2 pipe, comprises a rotating piece and a lifting piece, when the rotating piece rotates relative to the No. 2 pipe, the lifting piece moves along the axial direction of the No. 2 pipe, and can increase the extrusion force of the elastic extrusion piece on the sealing ring; the No. 2 pipe is also provided with a locking assembly, the locking assembly cooperates with the rotating piece, and can lock the position of the rotating piece.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline connection structures, in particular to an electrolytic sealing ring, a sealing ring interface connection device capable of strain relaxation creep and a use method thereof. Background Art

[0002] The joints of the pipes need to be connected using joints. During the connection, in order to improve the sealing of the joints, rubber sealing rings are usually added inside the joints.

[0003] The sealing ring is elastic and resilient. It is often subjected to harsh conditions such as high temperature, high pressure, and corrosion during operation. These conditions will cause the properties of the sealing ring material to change. Among them, the creep of the sealing ring is a form of change in the material properties. Specifically, the creep of the sealing ring material affects the sealing performance in two main aspects: on the one hand, the compression deformation of the sealing ring gradually increases over time, resulting in an increase in the sealing surface gap, which affects the sealing performance; on the other hand, the volume of the sealing ring decreases, which reduces the contact area between the sealing ring and the sealing surface, resulting in leakage; When making pipeline sealing connections, in order to maintain the sealing performance of the pipeline, the sealing ring is usually firmly pressed between the two groups of pipelines. At this time, the sealing ring is subjected to the greatest extrusion force. The greater the extrusion force, the faster the sealing ring will creep, which will reduce the service life of the sealing ring. When the pipeline sealing ring leaks, the most direct way is to replace the sealing ring. However, the replaced sealing ring generally still has a certain rebound performance. If the distance between the pipelines is adjusted at this time, the sealing ring still has sealing performance. Therefore, replacing the sealing ring at this time will cause waste of use. Summary of the invention

[0004] The object of the present invention is to provide an electrolytic sealing ring, a sealing ring interface connection device capable of strain relaxation creep and a method of using the same, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: An electrolytic sealing ring is installed between a No. 1 pipe and a No. 2 pipe to achieve a sealed connection between the No. 1 pipe and the No. 2 pipe, comprising: a sealing ring sleeved on the No. 2 pipe, the upper and lower sides of the sealing ring are both formed with sloped surfaces, the inner wall and the outer wall of the sealing ring are both formed with protrusions, and when the No. 1 pipe is connected to the No. 2 pipe, the sealing ring cooperates with a sealing ring interface connection device that can be strain-relaxed and creep-flexible and is arranged on the No. 2 pipe, so that the inner wall of the sealing ring is always in contact with the outer wall of the No. 2 pipe.

[0006] A sealing ring interface connection device capable of strain relaxation creep: comprising an extrusion assembly, the extrusion assembly being mounted on a No. 2 pipe, comprising a connecting tube arranged on the No. 2 pipe, an elastic extrusion piece being arranged in the connecting tube, when a No. 1 pipe is connected to the No. 2 pipe, the elastic extrusion piece cooperates with the No. 1 pipe, and can force the sealing ring to fit with the No. 2 pipe; It also includes an adjustment component, which is arranged on the No. 2 pipe and includes a rotating member and a lifting member. When the rotating member rotates relative to the No. 2 pipe, the lifting member moves along the axial direction of the No. 2 pipe, which can increase the extrusion force of the elastic extrusion member on the sealing ring; The No. 2 pipe is also provided with a locking assembly, which cooperates with the rotating member to lock the position of the rotating member.

[0007] The sealing ring interface connection device capable of strain relaxation creep as described above: the elastic extrusion member includes an abutment ring, the abutment ring is slidably arranged between the connecting tube and the second pipe, and is coaxially arranged with the second pipe.

[0008] The sealing ring interface connection device capable of strain relaxation creep as described above: the extrusion assembly also includes a gasket slidably arranged between the connecting tube and the No. 2 pipe, and a first spring is also slidably arranged between the connecting tube and the No. 2 pipe, one end of the first spring is connected to the gasket, and the other end abuts against the abutment ring.

[0009] The sealing ring interface connection device capable of strain relaxation creep as described above: the rotating part includes a rotating cylinder rotatably mounted on the No. 2 pipe, the outer wall of the rotating cylinder is provided with an outer ring, and the outer wall of the rotating cylinder is provided with an engaging groove body, the engaging groove body cooperates with the lifting part, and can drive the lifting part to be lifted and lowered along the axial direction of the No. 2 pipe, thereby pushing the gasket to slide relative to the No. 2 pipe.

[0010] The sealing ring interface connection device capable of strain relaxation creep as described above: the lifting ring includes a lifting cylinder inserted between the rotating cylinder and the external ring, a protrusion is formed on the inner wall of the lifting cylinder, the protrusion is slidably arranged in the mosaic groove, and guide rods are equidistantly arranged along the circumferential direction of the lifting cylinder on one side of the connecting cylinder, and the end of the guide rod away from the lifting cylinder is inserted in the connecting cylinder and fits with the gasket.

[0011] The sealing ring interface connection device capable of strain relaxation creep as described above: the engaging groove body comprises a first spiral groove opened on the outer wall of the rotating cylinder, a plurality of groups of the first spiral grooves are arranged equidistantly along the axial direction of the rotating cylinder, and two adjacent groups of the first spiral grooves are connected by a second spiral groove, and positioning grooves are provided at the middle end of the second spiral groove and the end of the first spiral groove.

[0012] The sealing ring interface connection device capable of strain relaxation creep as described above: the locking assembly includes a fixed cylinder arranged on the No. 2 tube, a second spring is slidably arranged between the fixed cylinder and the No. 2 tube, one end of the second spring abuts against the bottom of the fixed cylinder, and the other end abuts against a sleeve cylinder slidably arranged in the fixed cylinder, and the sleeve cylinder is away from the second spring on one side, and two groups of clamping blocks are equidistantly arranged along its circumferential direction, and the clamping blocks are adapted to the clamping grooves provided on the rotating cylinder.

[0013] A method for using a sealing ring interface connection device capable of strain relaxation and creep is also proposed, using the sealing ring interface connection device capable of strain relaxation and creep as described above, comprising the following steps: Step 1: In the initial state, the clamping block is engaged with the clamping groove to lock the rotating cylinder, and the protruding column is combined with the stroke end of the engaging groove body. At this time, the lifting cylinder is away from the connecting cylinder. When in use, the sealing ring is sleeved on the No. 2 pipe. After the No. 1 pipe is connected to the No. 2 pipe, the first spring is compressed to push the abutting ring to fit with the sealing ring, so that the inner wall of the sealing ring fits with the outer wall of the No. 2 pipe; Step 2: As time goes by, the sealing ring will become loose. Press the sleeve tube downward. After the clamping block is separated from the clamping groove, rotate the rotating tube. The engaging groove body and the protruding column cooperate to drive the lifting tube toward the connecting tube, and then force the gasket to move toward the No. 1 tube. The elastic potential energy reserved by the first spring increases, and then forces the sealing ring to always fit the outer wall of the No. 2 tube.

[0014] Compared with the prior art, the present invention has the following beneficial effects: By providing the sloped surface and the protrusion on the sealing ring, the contact area between the sealing ring and the joint of the No. 1 pipe and the friction between the joint and the sealing ring can be increased, thereby increasing the sealing performance of the connection between the No. 1 pipe and the No. 2 pipe. Under the action of the protrusion, the connection between the sealing ring and the pipe wall of the No. 2 pipe is tighter, thereby avoiding the contact friction of the sealing ring relative to the No. 2 pipe when rotating, avoiding the generation of a gap between the sealing ring and the pipe wall, thereby preventing the gas or liquid flowing between the No. 1 pipe and the No. 2 pipe from leaking from the sealing ring and the outer wall of the No. 2 pipe. By providing a sealing ring interface connection device capable of strain relaxation creep, when the No. 1 pipe is connected to the No. 2 pipe, the inner wall of the sealing ring can be forced to expand toward the wall of the No. 2 pipe by utilizing the continuous extrusion process of the abutment ring on the sealing ring in the extrusion assembly, so that when the sealing ring is deformed during use, the inner wall of the sealing ring can always be closely fitted with the wall of the No. 2 pipe, thereby maintaining the connection sealing of the pipeline; As time goes by, when the pushing and squeezing pressure of the abutment ring on the sealing ring decreases, the pushing and squeezing pressure of the abutment ring can be increased by utilizing the cooperation between the adjusting component and the locking component provided on the No. 2 pipe, so that the sealing ring can continue to seal the No. 1 pipe and the No. 2 pipe. In the present invention, the adjusting component adopts a multi-short displacement method to adjust the abutment ring, which can extend the service life of the sealing ring and thereby reduce the number of times the sealing ring is replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The schematic diagram is a structural diagram of a sealing ring interface connection device capable of strain relaxation creep.

[0016] Figure 2 The present invention is a schematic structural diagram of the cross-sections of a connecting cylinder, a rotating cylinder, a fixed cylinder and a sleeve cylinder in a sealing ring interface connection device capable of strain relaxation creep.

[0017] Figure 3 It is a schematic diagram of the structure of the electrolytic sealing ring.

[0018] Figure 4 The schematic diagram is a structural diagram of an extrusion assembly in a sealing ring interface connection device capable of strain relaxation creep.

[0019] Figure 5 The figure is a schematic diagram of the structure of the adjustment component in the sealing ring interface connection device capable of strain relaxation creep.

[0020] Figure 6 The figure is a schematic diagram of the structure of the embedded groove body in the sealing ring interface connection device capable of strain relaxation creep.

[0021] Figure 7 The figure is a schematic diagram of the structure of the embedded groove body in the sealing ring interface connection device capable of strain relaxation creep.

[0022] Figure 8 The figure is a schematic diagram of the structure of the locking assembly in the sealing ring interface connection device capable of strain relaxation creep.

[0023] In the figure: 1. No. 1 pipe; 101. Butt joint; 2. No. 2 pipe; 3. Fixed cylinder; 301. Sliding block; 4. Rotating cylinder; 401. External ring; 402. Positioning groove; 403. First spiral groove; 404. Second spiral groove; 5. Connecting cylinder; 6. Lifting cylinder; 601. Guide rod; 602. Protruding column; 7. Socket cylinder; 701. Sliding groove; 8. Sealing ring; 801. Sloping surface; 802. Protrusion; 9. Abutting ring; 10. First spring; 11. Gasket; 12. Second spring; 13. Snap-in groove; 14. Snap-in block. DETAILED DESCRIPTION

[0024] Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0025] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0026] In addition, in order to better illustrate the present application, numerous specific details are provided in the specific embodiments below. It should be understood by those skilled in the art that the present application can also be implemented without certain specific details. In some examples, methods, means, and elements well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present application.

[0027] See also Figure 1-Figure 8 In an embodiment of the present invention, an electrolytic sealing ring is installed between a No. 1 pipe 1 and a No. 2 pipe 2 to achieve a sealed connection between the No. 1 pipe 1 and the No. 2 pipe 2, comprising: a sealing ring 8 sleeved on the No. 2 pipe 2, the upper and lower sides of the sealing ring 8 are formed with sloped surfaces 801, the inner wall and the outer wall of the sealing ring 8 are formed with protrusions 802, and when the No. 1 pipe 1 and the No. 2 pipe 2 are fixedly connected, the sealing ring 8 cooperates with a sealing ring interface connection device that can be strain-relaxed and creep-proof and is arranged on the No. 2 pipe 2, so that the inner wall of the sealing ring 8 is always in contact with the outer wall of the No. 2 pipe 2.

[0028] Preferably, see Figure 1 , Figure 2 , Figure 3, the No. 1 pipe 1 and the No. 2 pipe 2 are both provided with flanges. When the No. 1 pipe 1 and the No. 2 pipe 2 are fixedly connected, the sealing ring 8 is first sleeved on the No. 2 pipe 2. Under the action of the protrusion 802 formed on the inner wall of the sealing ring 8, the sealing ring 8 will be firmly sleeved on the No. 2 pipe 2, thereby avoiding relative friction between the sealing ring 8 and the No. 2 pipe 2, so that the No. 1 pipe 1 and the No. 2 pipe 2 can maintain a sealed connection subsequently; after the sealing ring 8 is sleeved on the No. 2 pipe 2, the No. 1 pipe 1 and the No. 2 pipe 2 are aligned, and the two are fixed by bolts, and then they can be used normally.

[0029] In particular, the cross-sectional view of the sealing ring 8 is as follows: Figure 3 As shown, both upper and lower sides of the sealing ring 8 are provided with sloped surfaces 801, and the sloped surfaces 801 are in the state of inclined thin sheets. These thin sheet-like sloped surfaces 801 can increase the contact area between the joint 101 of the No. 1 pipe 1 and the sealing ring 8 and the friction between the joint 101 and the sealing ring 8, thereby increasing the connection sealing between the No. 1 pipe 1 and the No. 2 pipe 2. At the same time, the protrusions 802 formed on the inner and outer walls of the sealing ring 8 can increase the contact friction between the sealing ring 8 and the outer wall of the No. 2 pipe 2, so that the gas or liquid flowing between the No. 1 pipe 1 and the No. 2 pipe 2 will not leak from between the sealing ring 8 and the outer wall of the No. 2 pipe 2.

[0030] For further information, see Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 A sealing ring interface connection device capable of strain relaxation creep: comprising an extrusion assembly, the extrusion assembly being installed on the No. 2 pipe 2, comprising a connecting tube 5 arranged on the No. 2 pipe 2, an elastic extrusion piece being arranged in the connecting tube 5, when the No. 1 pipe 1 is fixedly connected to the No. 2 pipe 2, the elastic extrusion piece cooperates with the No. 1 pipe 1, and can force the sealing ring 8 to fit with the No. 2 pipe 2.

[0031] The elastic extrusion member includes an abutment ring 9 , which is slidably disposed between the connecting tube 5 and the No. 2 pipe 2 , and is coaxially disposed with the No. 2 pipe 2 .

[0032] The extrusion assembly also includes a gasket 11 slidably arranged between the connecting tube 5 and the second pipe 2, and a first spring 10 is also slidably arranged between the connecting tube 5 and the second pipe 2, one end of the first spring 10 is connected to the gasket 11, and the other end abuts against the abutment ring 9.

[0033] Preferably, see Figure 4The cross section of the abutting ring 9 is a "trapezoidal structure". In the initial state, the first spring 10 is in a compressed state. The first spring 10 in the compressed state pushes the gasket 11 to abut against the bottom wall of the connecting tube 5, and pushes the abutting ring 9 away from the gasket 11. When the No. 1 pipe 1 and the No. 2 pipe 2 are fixedly connected, the sealing ring 8 is first put on the No. 2 pipe 2, and then the No. 1 pipe 1 is put on the No. 2 pipe 2. Figure 2 As shown, when the No. 1 pipe 1 and the No. 2 pipe 2 are docked, the docking joint 101 of the No. 1 pipe 1 contacts the sealing ring 8, which will push the sealing ring 8 toward the connecting tube 5 until the connection between the No. 1 pipe 1 and the No. 2 pipe 2 is completed. Then, the docking joint 101 forces the sealing ring 8 to contact the abutment ring 9, and forces the abutment ring 9 to further squeeze the first spring 10. At this time, the reaction force of the first spring 10 on the abutment ring 9 can push the sealing ring 8 and the docking joint 101 to maintain a tight fit, so as to achieve a sealed connection between the No. 1 pipe 1 and the No. 2 pipe 2.

[0034] During actual use, the sealing ring 8 may become loose and deformed, resulting in a gap between the inner wall of the sealing ring 8 and the No. 2 pipe 2. This gap may cause leakage between the No. 1 pipe 1 and the No. 2 pipe 2, thereby affecting the normal use of the pipeline.

[0035] In the present invention, the sealing ring 8 between the first tube 1 and the second tube 2 can always be squeezed by the first spring 10. Therefore, when the sealing ring 8 is relaxed, the elastic potential energy stored in the first spring 10 can push the abutting ring 9 to squeeze the sealing ring 8. Specifically, due to the special shape of the abutting ring 9 (such as Figure 4 As shown in the figure), when the abutment ring 9 squeezes the sealing ring 8, the inclined surface of the abutment ring 9 will guide the sealing ring 8, forcing the sealing ring 8 to undergo yield deformation, so that the inner wall of the sealing ring 8 moves toward the outer wall of the No. 2 pipe 2, avoiding a gap between the sealing ring 8 and the No. 2 pipe 2, and then maintaining the sealed connection between the No. 1 pipe 1 and the No. 2 pipe 2.

[0036] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , a sealing ring interface connection device capable of strain relaxation creep, also includes an adjusting component, which is arranged on the No. 2 tube 2, and includes a rotating part and a lifting part. When the rotating part rotates relative to the No. 2 tube 2, the lifting part moves along the axial direction of the No. 2 tube 2, which can increase the extrusion force of the elastic extrusion part on the sealing ring 8.

[0037] In combination with the above, with the passage of time, the elastic potential energy stored in the first spring 10 will gradually decrease, and thus the squeezing force of the abutment ring 9 on the sealing ring 8 will gradually decrease. At this time, pushing the gasket 11 toward the abutment ring 9 can increase the elastic potential energy stored in the first spring 10, so that the first spring 10 can drive the abutment ring 9 to squeeze the sealing ring 8 again, thereby ensuring the sealed connection between the No. 1 tube 1 and the No. 2 tube 2.

[0038] In detail, the rotating member includes a rotating cylinder 4 rotatably mounted on the No. 2 pipe 2, the outer wall of the rotating cylinder 4 is provided with an outer ring 401, and the outer wall of the rotating cylinder 4 is provided with an interlocking groove body, the interlocking groove body cooperates with the lifting member, and can drive the lifting member to rise and fall along the axial direction of the No. 2 pipe 2, thereby pushing the gasket 11 to slide relative to the No. 2 pipe 2.

[0039] The lifting ring includes a lifting cylinder 6 inserted between the rotating cylinder 4 and the external ring 401, and a protruding column 602 is formed on the inner wall of the lifting cylinder 6. The protruding column 602 is slidably set in the mosaic groove, and a guide rod 601 is equidistantly arranged along the circumferential direction of the lifting cylinder 6 on the side facing the connecting cylinder 5. The end of the guide rod 601 away from the lifting cylinder 6 is inserted in the connecting cylinder 5 and fits with the gasket 11.

[0040] Preferably, see Figure 5 The guide rods 601 are arranged in three groups equidistantly along the circumferential direction of the lifting cylinder 6. In the initial state, the end of the guide rods 601 away from the lifting cylinder 6 is flush with the inner bottom surface of the connecting cylinder 5. At this time, the distance between the gasket 11 and the abutment ring 9 is the largest. After a period of use, when the elastic potential energy stored in the first spring 10 is not enough to push the abutment ring 9 to squeeze the sealing ring 8, the elastic potential energy stored in the first spring 10 can be increased by pushing the gasket 11 toward the connecting cylinder 5, and then the abutment ring 9 can perform the squeezing operation on the sealing ring 8, so that the sealing ring 8 can maintain the sealed connection between the No. 1 pipe 1 and the No. 2 pipe 2.

[0041] The mosaic groove body includes a first spiral groove 403 opened on the outer wall of the rotating cylinder 4, and multiple groups of the first spiral grooves 403 are equidistantly arranged along the axial direction of the rotating cylinder 4, and two adjacent groups of the first spiral grooves 403 are connected by a second spiral groove 404, and the middle end of the second spiral groove 404 and the end of the first spiral groove 403 are both provided with a positioning groove 402.

[0042] Preferably, see Figure 5 , Figure 6 , Figure 7The first spiral groove 403 is equidistantly arranged in three sections, and two connected sections of the first spiral groove 403 are connected by a second spiral groove 404, and the slope of the second spiral groove 404 is greater than that of the first spiral groove 403. In the initial state, the protruding column 602 is located at the end of the stroke of the first spiral groove 403 away from the connecting tube 5, and is combined with the positioning groove 402. At this time, the end of the guide rod 601 is flush with the bottom of the connecting tube 5. When the elastic potential energy stored in the first spring 10 decreases, the rotating tube 4 is rotated clockwise (combined with Figure 7 ), during this process, the extrusion generated by the protruding column 602 and the wall of the positioning groove 402 can force the protruding column 602 to separate from the positioning groove 402 and combine with the first spiral groove 403, and then continue to rotate the rotating cylinder 4, and the contact extrusion generated by the wall of the first spiral groove 403 on the protruding column 602 can force the lifting cylinder 6 to move toward the connecting cylinder 5 along the axial direction of the No. 2 tube 2. During this process, the guide rod 601 can force the gasket 11 to move toward the abutment ring 9, causing the elastic potential energy stored in the first spring 10 to increase, thereby providing a larger pushing extrusion force for the abutment ring 9, and then satisfying the subsequent abutment ring 9 to squeeze the sealing ring 8 after a certain deformation, so that it can always achieve a sealing effect.

[0043] During the subsequent rotation, the protruding column 602 can move along the first spiral groove 403 to combine with the next group of second spiral grooves 404. When the protruding column 602 moves to the middle position of the second spiral groove 404, the reaction force of the first spring 10 on the guide rod 601 can push the lifting cylinder 6 to move toward the rotating cylinder 4. At this time, the rotating cylinder 4 is released, and the protruding column 602 can combine with the positioning groove 402 opened on the second spiral groove 404 under the reaction force of the elastic potential energy stored in the first spring 10, thereby fixing the position of the lifting cylinder 6 so that the sealing ring 8 can stably seal the connection between the No. 1 tube 1 and the No. 2 tube 2.

[0044] After being used for a period of time, the sealing ring 8 is fixed due to deformation. After the elastic potential energy stored in the first spring 10 is reduced, the rotating cylinder 4 continues to rotate, and the lifting cylinder 6 repeats the above process, which can increase the elastic potential energy stored in the first spring 10 again, so that the subsequent sealing ring 8 can continue to play a sealing role.

[0045] In the above process, the elastic potential energy stored in the first spring 10 is increased by using a multi-stage short displacement method, which can squeeze the sealing ring 8 that undergoes relaxation creep step by step, so that the inner wall of the sealing ring 8 can always keep in close contact with the wall of the No. 2 pipe 2, thereby ensuring the sealed connection between the No. 1 pipe 1 and the No. 2 pipe 2. Compared with the method of increasing the elastic potential energy of the first spring 10 by a one-time long displacement, the multi-stage short displacement method can extend the service life of the sealing ring 8 and reduce the number of replacement times of the sealing ring 8.

[0046] For further information, see Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 8 The second tube 2 is also provided with a locking assembly, which cooperates with the rotating member to lock the position of the rotating member.

[0047] The locking assembly includes a fixed cylinder 3 arranged on the No. 2 tube 2, and a second spring 12 is slidably arranged between the fixed cylinder 3 and the No. 2 tube 2. One end of the second spring 12 abuts against the bottom of the fixed cylinder 3, and the other end abuts against a sleeve cylinder 7 slidably arranged in the fixed cylinder 3. The sleeve cylinder 7 is away from the side of the second spring 12, and two groups of clamping blocks 14 are equidistantly arranged along its circumferential direction. The clamping blocks 14 are adapted to the clamping grooves 13 opened on the rotating cylinder 4.

[0048] For details, please refer to Figure 8 The inner wall of the fixed tube 3 is provided with at least one group of sliders 301 equidistantly along its circumferential direction. The sliders 301 are slidably arranged in the slide grooves 701 provided on the outer wall of the sleeve tube 7. With the cooperation between the sliders 301 and the slide grooves 701, the sleeve tube 7 can only slide along the axial direction of the fixed tube 3.

[0049] Preferably, in the initial state, the second spring 12 is in a compressed state, and the second spring 12 in the compressed state pushes the sleeve tube 7 close to the rotating cylinder 4. At this time, the clamping block 14 is combined with the clamping groove 13. Under the action of the reserved elastic potential energy of the second spring 12, the sleeve tube 7 can lock the position of the rotating cylinder 4 with the cooperation of the clamping block 14 and the clamping groove 13, thereby avoiding the possibility of forcing the rotating cylinder 4 to rotate due to accidental touch. When the rotating cylinder 4 is locked, the extrusion process of the abutment ring 9 on the sealing ring 8 is relatively stable, so that the sealing ring 8 can slowly change, thereby continuously sealing the No. 1 tube 1 and the No. 2 tube 2.

[0050] When it is necessary to adjust the elastic potential energy stored in the first spring 10, first press the sleeve tube 7 toward the fixed tube 3, so that the clamping block 14 is separated from the clamping groove 13, and then operate the rotating tube 4. After the operation is completed, release the sleeve tube 7. Under the action of the elastic potential energy stored in the second spring 12, the sleeve tube 7 can return to the initial position, and the clamping block 14 is re-engaged with the clamping groove 13, thereby locking the position of the rotating tube 4.

[0051] A method for using a sealing ring interface connection device capable of strain relaxation and creep is also proposed, using the sealing ring interface connection device capable of strain relaxation and creep as described above, comprising the following steps: Step 1: In the initial state, the clamping block 14 is engaged with the clamping groove 13 to lock the rotating cylinder 4, and the protruding column 602 is combined with the stroke end of the embedded groove body. At this time, the lifting cylinder 6 is away from the connecting cylinder 5. When in use, the sealing ring 8 is sleeved on the No. 2 pipe 2. After the No. 1 pipe 1 is connected to the No. 2 pipe 2, the first spring 10 is compressed to push the abutting ring 9 to fit with the sealing ring 8, so that the inner wall of the sealing ring 8 fits with the outer wall of the No. 2 pipe 2; Step 2: As time goes by, the sealing ring 8 becomes loose, and the sleeve tube 7 is pressed downward. After the clamping block 14 is separated from the clamping groove 13, the rotating tube 4 is rotated, and the engaging groove body cooperates with the protruding column 602 to drive the lifting tube 6 toward the connecting tube 5, and then force the gasket 11 to move toward the No. 1 tube 1, so that the elastic potential energy stored in the first spring 10 increases, and then forces the sealing ring 8 to always fit the outer wall of the No. 2 tube 2.

[0052] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0053] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An electrolytic sealing ring, installed between a No. 1 pipe (1) and a No. 2 pipe (2), for achieving a sealed connection between the No. 1 pipe (1) and the No. 2 pipe (2), characterized in that: include: A sealing ring (8) is sleeved on the second pipe (2), wherein the upper and lower sides of the sealing ring (8) are both formed with sloped surfaces (801), and the inner wall and outer wall of the sealing ring (8) are both formed with protrusions (802), and when the first pipe (1) is connected to the second pipe (2), the sealing ring (8) cooperates with a sealing ring interface connection device that can be strain-relaxed and creep-flexible and is provided on the second pipe (2), so that the inner wall of the sealing ring (8) is always in contact with the outer wall of the second pipe (2).

2. A seal ring interface connection device capable of strain relaxation creep, using an electrolytic seal ring as claimed in claim 1, characterized in that: include: An extrusion assembly, the extrusion assembly being mounted on the No. 2 pipe (2), comprising a connecting tube (5) arranged on the No. 2 pipe (2), wherein an elastic extrusion piece is arranged in the connecting tube (5), and when the No. 1 pipe (1) is connected to the No. 2 pipe (2), the elastic extrusion piece cooperates with the No. 1 pipe (1), thereby forcing a sealing ring (8) to fit with the No. 2 pipe (2); It also includes an adjustment component, which is arranged on the second pipe (2) and includes a rotating member and a lifting member. When the rotating member rotates relative to the second pipe (2), the lifting member moves along the axial direction of the second pipe (2), thereby increasing the extrusion force of the elastic extrusion member on the sealing ring (8); The second pipe (2) is also provided with a locking assembly, which cooperates with the rotating member and can lock the position of the rotating member.

3. A seal ring interface connection device capable of strain relaxation creep according to claim 2, characterized in that: The elastic extrusion member comprises an abutment ring (9), the abutment ring (9) being slidably arranged between the connecting tube (5) and the second pipe (2), and being coaxially arranged with the second pipe (2).

4. A seal ring interface connection device capable of strain relaxation creep according to claim 3, characterized in that: The extrusion assembly further comprises a gasket (11) slidably arranged between the connecting tube (5) and the second tube (2), and a first spring (10) is also slidably arranged between the connecting tube (5) and the second tube (2), one end of the first spring (10) is connected to the gasket (11), and the other end abuts against the abutment ring (9).

5. A seal ring interface connection device capable of strain relaxation creep according to claim 4, characterized in that: The rotating member comprises a rotating cylinder (4) rotatably mounted on the No. 2 pipe (2), the outer wall of the rotating cylinder (4) being provided with an outer ring (401), and the outer wall of the rotating cylinder (4) being provided with an engaging groove body, the engaging groove body cooperating with the lifting member to drive the lifting member to be lifted and lowered along the axial direction of the No. 2 pipe (2), thereby pushing the gasket (11) to slide relative to the No. 2 pipe (2).

6. A seal ring interface connection device capable of strain relaxation creep according to claim 5, characterized in that: The lifting ring comprises a lifting cylinder (6) inserted between the rotating cylinder (4) and the outer ring (401), a protruding column (602) is formed on the inner wall of the lifting cylinder (6), the protruding column (602) is slidably arranged in the chimeric groove, and a guide rod (601) is equidistantly arranged along the circumferential direction of the lifting cylinder (6) on a side facing the connecting cylinder (5), and an end of the guide rod (601) away from the lifting cylinder (6) is inserted into the connecting cylinder (5) and fits with the gasket (11).

7. A seal ring interface connection device capable of strain relaxation creep according to claim 6, characterized in that: The engaging groove body comprises a first spiral groove (403) formed on the outer wall of the rotating cylinder (4), wherein a plurality of groups of the first spiral grooves (403) are arranged at equal intervals along the axial direction of the rotating cylinder (4), and two adjacent groups of the first spiral grooves (403) are connected via a second spiral groove (404), and a positioning groove (402) is provided at the middle end of the second spiral groove (404) and the end of the first spiral groove (403).

8. A seal ring interface connection device capable of strain relaxation creep according to claim 5, characterized in that: The locking assembly comprises a fixed cylinder (3) arranged on the second tube (2); a second spring (12) is slidably arranged between the fixed cylinder (3) and the second tube (2); one end of the second spring (12) abuts against the bottom of the fixed cylinder (3); the other end abuts against a sleeve cylinder (7) slidably arranged in the fixed cylinder (3); two groups of clamping blocks (14) are equidistantly arranged along the circumferential direction of the sleeve cylinder (7) on a side away from the second spring (12); the clamping blocks (14) are adapted to be fitted into clamping grooves (13) provided on the rotating cylinder (4).

9. A method for using a seal ring interface connection device capable of strain relaxation creep, using the seal ring interface connection device capable of strain relaxation creep as claimed in claim 7, characterized in that: The steps include: Step 1: In the initial state, the clamping block (14) is engaged with the clamping groove (13) to lock the rotating cylinder (4), and the protruding column (602) is engaged with the stroke end of the engaging groove body. At this time, the lifting cylinder (6) is away from the connecting cylinder (5). When in use, the sealing ring (8) is sleeved on the No. 2 pipe (2). After the No. 1 pipe (1) and the No. 2 pipe (2) are connected, the first spring (10) is compressed to push the abutting ring (9) to fit with the sealing ring (8), so that the inner wall of the sealing ring (8) fits with the outer wall of the No. 2 pipe (2); Step 2: As time goes by, the sealing ring (8) becomes loose, and the sleeve tube (7) is pressed downward. After the clamping block (14) is separated from the clamping groove (13), the rotating tube (4) is rotated, and the engaging groove body cooperates with the protruding column (602), which can drive the lifting tube (6) toward the connecting tube (5), and then force the gasket (11) to move toward the first tube (1), so that the elastic potential energy stored in the first spring (10) increases, and then forces the sealing ring (8) to always fit the outer wall of the second tube (2).

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