A large pipe seal installation device

Abstract

The utility model provides a large -scale pipeline sealing piece mounting device relates to pipeline sealing equipment technical field, including the rotary part that sets up the disc -shaped, the rotary part includes the dynamic disc, guide groove, with static disc and straight groove of dynamic disc rotatable connection, guide groove sets up in the dynamic disc, straight groove sets up in static disc, expansion part, including passive pole, with push rod of passive pole fixed connection and be used for the expansion of slide platform of sealing ring, passive pole can slideable setting in the straight groove of dynamic disc, the expansion installation of slide platform to sealing ring is through the dynamic disc with static disc synchronous rotation time, by guide groove push passive pole pushes out the realization of slide platform, and this device can install the sealing ring simply at the same time, will not make sealing ring to produce the damage to the structure because of excessive bending, simultaneously will not cause irreversible elastic deformation to sealing ring because of excessive expansion, guarantees the sealing effect after sealing ring installation.

Description

Technical Field

[0001] This application relates to the field of pipeline sealing equipment technology, and in particular to a large pipeline sealing component installation device. Background Technology

[0002] Pipelines are commonly used to transport various fluids, such as oil, natural gas, and water. Poor pipe sealing can lead to fluid leaks, wasting resources and potentially causing environmental pollution and safety hazards. Sealing rings, as effective sealing elements, use their elastic deformation to fill the tiny gaps at pipe joints, ensuring a tight seal and preventing fluid leakage.

[0003] Traditional pipe sealing installation devices use multiple vertical pipes, vertical rods, compression springs, support rods, and a first connecting rod to work together to wind the circular sealing ring into a triangle. The height of the triangle is greater than the radius of the ring to install the sealing ring. However, since the sum of the interior angles of the triangle is 180 degrees, when bending the sealing ring, stress accumulation can easily occur at the bend when the bending angle is less than 20 degrees. This can cause the sealing ring to break, damage its internal structure, affect its performance, and make the operation complicated.

[0004] Therefore, we provide a large pipe seal installation device to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a large pipeline sealing installation device that can easily install the sealing ring without causing structural damage due to excessive bending, and without causing irreversible elastic deformation due to excessive expansion, thus ensuring the sealing effect after installation.

[0006] The first aspect of this utility model relates to a large pipe sealing installation device, including a rotating part arranged in a disc shape. The rotating part includes a moving disc, a guide groove, a stationary disc rotatably connected to the moving disc, and a straight groove. The guide groove is disposed in the moving disc, and the straight groove is disposed in the stationary disc.

[0007] The expansion section includes a passive rod, a push rod fixedly connected to the passive rod, and a slide for expanding the sealing ring. The passive rod is slidably disposed in the straight groove of the moving plate.

[0008] The expansion installation of the sealing ring on the slide is achieved by the guide groove pushing the passive rod to push the slide out when the moving plate and the stationary plate rotate synchronously.

[0009] In some embodiments, the guide groove is an arc-shaped groove and is distributed circumferentially within the moving disk, and multiple sets of the guide groove are provided.

[0010] In some embodiments, the straight groove is an elongated annular groove and is distributed circumferentially within the stationary disk, and multiple sets of the straight groove are provided.

[0011] In some embodiments, the inner diameter of the guide groove and the straight groove matches the outer diameter of the passive rod, and the number of the guide groove and the straight groove corresponds.

[0012] In some embodiments, the straight groove has a through hole extending radially outward through the stationary disc, the through hole being used to accommodate the sliding of the push rod.

[0013] In some embodiments, one end of the push rod passing through the through hole is threadedly connected to a slide, and the expansion portion further includes a fixing block disposed on one side of the slide. The fixing block is arc-shaped and is used to engage with the inner diameter of the pipe.

[0014] In some embodiments, the inner diameter of the slide gradually decreases along the direction close to the fixed block, and friction textures are engraved on the outer side of the upper section of the slide.

[0015] In some embodiments, the rotating part further includes a connecting sub-ring disposed inside the moving plate and a connecting main ring disposed on one side of the stationary plate, wherein the connecting sub-ring and the connecting main ring are rotatably connected by bearings.

[0016] In some embodiments, the rotating part further includes a stationary grip and a movable grip, wherein the connecting main ring extends along the axial direction and passes through the movable disc to form a columnar stationary grip, and the movable grip is fixedly disposed on the side of the movable disc away from the stationary disc.

[0017] Based on the above technical solution, this utility model has at least the following beneficial effects:

[0018] The moving plate's guide groove and the stationary plate's straight groove work together to drive the driven rod, pushing the slide table out and installing the sealing ring on the slide table onto the pipe. This device is simple to operate and avoids excessive bending of certain parts of the sealing ring, thus preventing structural damage to the sealing ring at the bend. At the same time, when expanding the sealing ring, it will slide along the slide table, preventing irreversible over-expansion of the sealing ring. The friction texture on the slide table also increases the stability of the sealing ring sliding on the slide table, preventing excessive sliding that could cause the sealing ring to detach from the slide table before installation is complete. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0020] Figure 1This is a top view schematic diagram of the external structure of this utility model;

[0021] Figure 2 This is a top view schematic diagram of the external structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the external structure of the expansion part of this utility model;

[0023] Figure 4 This is an exploded structural diagram of the cooperation between the moving disk and the stationary disk of this utility model.

[0024] The labels in the attached diagram are explained as follows:

[0025] 10. Rotating part; 11. Moving plate; 12. Guide groove; 13. Connecting secondary ring; 14. Stationary plate; 15. Straight groove; 16. Connecting main ring; 17. Stationary grip; 18. Moving grip; 20. Expansion part; 21. Passive rod; 22. Push rod; 23. Slide table; 24. Fixed block.

[0026] It should be understood that the dimensions of the various parts shown in the accompanying drawings are not drawn to actual scale. Furthermore, the same or similar reference numerals denote the same or similar components. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0028] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the accompanying drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0029] In the related technical field, the pipe sealing installation device includes a vertical pipe. The upper end of the vertical pipe is provided with a support member that can extend upward and unfold. The lower end of the vertical pipe is detachably installed with a positioning rod. The front end of the vertical pipe is hinged with two second connecting rods arranged symmetrically on the left and right. The front end of the vertical pipe is provided with a threaded rod driven by a motor and parallel to the vertical pipe. A nut is fitted on the threaded rod. Below the nut is a guide rod parallel to the threaded rod. There is a limiting groove on each of the left and right sides of the nut that is open in the front and back directions. Each second connecting rod is provided with a limiting pin placed in the corresponding limiting groove. The free end of each second connecting rod, the upper end of the first connecting rod and the vertical rod are respectively supported by a support rod in the front and back directions through the pipe axis.

[0030] During the research process, the applicant discovered that when the sealing ring is bent in a triangular shape, some parts of the sealing ring are excessively bent, with bending angles less than 15-20 degrees. When the bending angle of the sealing ring is less than 20 degrees, the stress at the bending point of the sealing ring increases sharply. The material will be subjected to tensile and shear forces far exceeding the safety limit, resulting in cracks and eventual breakage. Excessive bending of the sealing ring can easily damage its structure, and cracks are prone to appear at the bending point, affecting the sealing effect.

[0031] Based on the above findings, this application proposes a large-scale pipe seal installation device. This device utilizes the interaction between the guide groove of the moving plate and the straight groove of the stationary plate to drive the passive rod and push rod to expand the sealing ring fitted on the outside of the slide. A fixing block restricts the inner diameter of the pipe to prevent excessive expansion. During the expansion displacement of the slide, the sealing ring expands and slides. Then, simply pushing the sealing ring secures it to the pipe. When the slide expands, the contact area between the sealing ring and the slide is arc-shaped, with a bending angle greater than 90 degrees at intervals, thus preventing stress accumulation at bends that could lead to seal breakage. This device is simple to operate and avoids excessive bending of the sealing ring at bends, preventing structural damage. Furthermore, the sealing ring slides along the slide during expansion, preventing irreversible over-expansion. The friction texture on the slide also increases the stability of the sealing ring's sliding motion, preventing excessive sliding that could cause the sealing ring to detach from the slide before installation is complete.

[0032] The following is for reference. Figures 1 to 4This application provides a detailed description of a large pipe seal installation device according to some embodiments. One embodiment of the large pipe seal installation device includes a rotating part 10 arranged in a disc shape. The rotating part 10 includes a moving disc 11, a guide groove 12, a stationary disc 14 rotatably connected to the moving disc 11, and a straight groove 15. The guide groove 12 is disposed in the moving disc 11, and the straight groove 15 is disposed in the stationary disc 14. The expansion part 20 includes a passive rod 21, a push rod 22 fixedly connected to the passive rod 21, and a slide 23 for expanding the seal ring. The passive rod 21 is slidably disposed in the straight groove 15 of the moving disc 11.

[0033] The expansion installation of the sealing ring on the slide table 23 is achieved by the guide groove 12 pushing the passive rod 21 to push the slide table 23 out when the moving plate 11 and the stationary plate 14 rotate synchronously.

[0034] In this embodiment, both the passive rod 21 and the push rod 22 are disposed within the straight groove 15. The displacement direction of the passive rod 21 and the push rod 22 can only be along the length direction of the straight groove 15. Part of the passive rod 21 is disposed within the guide groove 12, which is arc-shaped. When the moving plate 11 rotates relative to the stationary plate 14, it drives the arc-shaped guide groove 12 to rotate synchronously. The arc-shaped surface of the guide groove 12 presses against the passive rod 21, causing the passive rod 21 to be subjected to force and thus displaced along the length direction of the straight groove 15. To achieve the retraction and release of the slide 23, since the multiple guide grooves 12 are identical in shape and are evenly distributed around the circumference on the rotating disk 11, when the turntable 11 rotates, the guide grooves 12 will drive the multiple slides 23 to move synchronously through the multiple passive rods 21. The outer surface of the slide 23 is an arc-shaped inclined surface. When the slide 23 moves, it will generate force through the sealing ring that is fitted on the outside of the slide 23 by the inclined surface, causing the sealing ring to expand and slide, thereby fitting the sealing ring onto the pipe.

[0035] In this embodiment, when the slide 23 is in its initial position, the minimum inner diameter of the sealing ring is much larger than the outer diameter between the opposite slides 23 when the slide 23 retracts. Without considering the engagement between the fixing block 24 and the inner wall of the pipe, when the slide 23 expands to its limit position, the minimum inner diameter of the slide 23 is greater than the maximum expansion inner diameter of the sealing ring. Since the outer diameter of the slide 23 gradually decreases near the fixing block (i.e., the outer surface of the slide 23 is inclined), when the inner diameter of the slide 23 contacts the outer diameter of the sealing ring, the continuous expansion of the slide 23 along its outer diameter causes the sealing ring to expand and extend, generating an opposing shrinking elastic force. When the friction between the sealing ring and the sliding platform 23 is less than the elastic force of the sealing ring's retraction, the sealing ring will slide along the sliding platform 23 (at this time, the sealing ring is still expanding) until it detaches from the end with the smaller outer diameter of the sliding platform 23. Based on this, the end with the smaller outer diameter of the sliding platform 23 is connected to the pipe connection. When the sealing ring slides and expands along the sliding platform 23, it will gradually enter the pipe connection. Since the angle of the bend is always greater than 90 degrees and will not be less than 20 degrees when the sealing ring expands, the shear force generated when the accumulated stress at the bend exceeds the material's safety limit is avoided, and cracks and breakage will not occur.

[0036] In some embodiments, the guide groove 12 is an arc-shaped groove and is circumferentially distributed within the moving plate 11. Multiple sets of guide grooves 12 are provided, preferably six sets in this example. The multiple sets of guide grooves 12 correspond to the positions of the passive rod 21 and are evenly distributed around the axis of the moving plate 11, thereby ensuring that when the moving plate 11 rotates, the passive rod 21 can drive the slide table 23 to perform synchronous displacement, thereby causing the sealing ring to expand.

[0037] In some embodiments, the straight groove 15 is an elongated annular groove and is distributed circumferentially within the stationary disk 14. Multiple sets of straight grooves 15 are provided, preferably, in this example, there are six sets.

[0038] In some embodiments, the inner diameters of the guide groove 12 and the straight groove 15 are matched with the outer diameter of the passive rod 21, and the number of guide grooves 12 and the straight groove 15 are corresponding. By matching the inner diameters of the guide grooves 12 and the straight groove 15 with the outer diameter of the passive rod 21, the arc-shaped guide groove 12 can continuously provide pressure to the passive rod 21, while the displacement of the push rod 22 and the passive rod 21 in the straight groove 15 will not be offset or shaken, thus affecting the performance.

[0039] In some embodiments, the straight groove 15 has a through hole extending radially outward through the stationary disc 14, the through hole being used to accommodate the sliding of the push rod 22.

[0040] In this embodiment, the arc-shaped guide groove 12 can provide power to the passive rod 21 by means of the arc surface, and the straight groove 15 fixes the displacement direction of the passive rod 21 and the push rod 22. The arc-shaped guide groove 12 and the long strip-shaped annular straight groove 15 cooperate with each other so that the rotation of the guide groove 12 can push out or retract the passive rod 21.

[0041] In some embodiments, the end of the push rod 22 that passes through the through hole is threadedly connected to the slide table 23. The expansion portion 20 also includes a fixing block 24 disposed on one side of the slide table 23. The fixing block 24 is arc-shaped and is used to engage with the inner diameter of the pipe. According to GB / T 8163 and GB / T 3091 standards, the thickness of the pipe connection is generally between 10mm and 20mm or 4.5mm and 6mm. To ensure that the sealing ring can slide to the pipe connection after the fixing block 24 engages with the inner diameter of the pipe connection, the distance between the outer edge of the fixing block 24 and the outer edge of the slide table 23 should be at least greater than 20mm. In this embodiment, the preferred distance is 22mm.

[0042] In some embodiments, the inner diameter of the slide 23 gradually decreases along the direction close to the fixed block 24, and friction textures are engraved on the outer side of the upper section of the slide 23. The friction textures can increase the friction of the sealing ring when it is fitted on the slide 23, prevent the slide 23 from shifting too much during movement, and ensure the stability of the sealing ring sliding on the slide 23.

[0043] In some embodiments, the rotating part 10 further includes a connecting sub-ring 13 disposed inside the moving disk 11 and a connecting main ring 16 disposed on one side of the stationary disk 14. The connecting sub-ring 13 and the connecting main ring 16 are rotatably connected by bearings and are sleeved together by bearings, thereby ensuring that the axes of the connecting sub-ring 13 and the connecting main ring 16 are on the same straight line, and the rotation axis of the moving disk 11 is on the same straight line as the axis of the moving disk 11.

[0044] In some embodiments, the rotating part 10 further includes a stationary grip 17 and a movable grip 18. The stationary grip 17 extends along the axial direction of the main ring 16 and passes through the movable disc 11 to form a column. The movable grip 18 is fixedly disposed on the side of the movable disc 11 away from the stationary disc 14. The stationary disc 14 can be fixed by gripping the fixed stationary grip 17, while the movable grip 18 can drive the movable disc 11 to rotate.

[0045] In this embodiment, the stationary handle 17 is first grasped, and the movable handle 18 is pushed to rotate, causing the arc-shaped guide groove 12 of the moving plate 11 to press against the passive rod 21. The passive rod 21 moves under the displacement direction restriction of the straight groove 15. The passive rod 21 pushes out the slide 23 through the push rod 22, so that the smallest outer diameter of the slide 23 can just fit the sealing ring at the outer ring. Then, the installation device together with the sealing ring is moved to the pipe interface. Then, the stationary handle 17 is fixed, and the movable handle 18 is pushed to rotate. At this time, the slide 23 continues to expand outward and presses the sealing ring to expand. The seal on the slide 23... After the ring is subjected to force, it moves along the narrower end of the slide table 23. The friction texture on the outside of the slide table 23 provides resistance to ensure the stability of the sealing ring during sliding, preventing the sealing ring from detaching from the slide table 23 before it is installed on the pipe. As the slide table 23 continues to expand, the fixing block 24 fits against the inner edge of the pipe. At this time, the sealing ring has expanded to fit onto the pipe. It is only necessary to push part of the sealing ring away from the friction texture of the slide table 23, and the sealing ring can slide onto the outer edge of the pipe by itself, completing the installation of the sealing ring. Then, it is only necessary to reverse the handle 18 to retract the slide table 23.

[0046] Based on the above embodiments of the present invention, in the absence of explicit denial or conflict, the technical features of one embodiment can be advantageously combined with one or more other embodiments.

[0047] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A large pipe sealing component installation device, characterized in that, include: A rotating part (10) is arranged in the shape of a disc. The rotating part (10) includes a moving disc (11), a guide groove (12), a stationary disc (14) rotatably connected to the moving disc (11), and a straight groove (15). The guide groove (12) is disposed in the moving disc (11), and the straight groove (15) is disposed in the stationary disc (14). The expansion section (20) includes a passive rod (21), a push rod (22) fixedly connected to the passive rod (21), and a slide (23) for expanding the sealing ring. The passive rod (21) is slidably disposed in the straight groove (15) of the moving plate (11). The expansion installation of the sealing ring on the slide (23) is achieved by the guide groove (12) pushing the passive rod (21) to push the slide (23) out when the moving plate (11) and the stationary plate (14) rotate synchronously.

2. The large pipeline sealing component installation device according to claim 1, characterized in that, The guide groove (12) is an arc-shaped groove and is distributed circumferentially within the moving plate (11). Multiple sets of the guide groove (12) are provided.

3. The large pipeline sealing component installation device according to claim 1, characterized in that, The straight groove (15) is a long strip-shaped annular groove and is distributed circumferentially within the stationary plate (14). Multiple sets of the straight groove (15) are provided.

4. A large pipeline sealing component installation device according to any one of claims 1 to 3, characterized in that, The inner diameters of the guide groove (12) and the straight groove (15) are matched with the outer diameter of the passive rod (21), and the number of the guide groove (12) and the straight groove (15) are corresponding.

5. A large pipeline sealing component installation device according to claim 1, characterized in that, The straight groove (15) has a through hole extending outward in the radial direction through the stationary plate (14). The through hole is used to accommodate the sliding of the push rod (22). One end of the push rod (22) passing through the through hole is threadedly connected to a slide (23).

6. A large pipeline sealing component installation device according to claim 1, characterized in that, The expansion section (20) also includes a fixing block (24) disposed on one side of the slide (23). The fixing block (24) is arc-shaped and is used to engage with the inner diameter of the pipe.

7. A large pipeline sealing component installation device according to claim 6, characterized in that, The inner diameter of the slide (23) gradually decreases along the direction close to the fixed block (24), and friction textures are engraved on the outer side of the upper section of the slide (23).

8. A large pipeline sealing component installation device according to claim 1, characterized in that, The rotating part (10) further includes a connecting sub-ring (13) disposed inside the moving plate (11) and a connecting main ring (16) disposed on one side of the stationary plate (14), wherein the connecting sub-ring (13) and the connecting main ring (16) are rotatably connected by bearings.

9. A large pipeline sealing component installation device according to claim 8, characterized in that, The rotating part (10) also includes a stationary grip (17) and a movable grip (18). The connecting main ring (16) extends along the axial direction and passes through the movable disc (11) to form a columnar stationary grip (17). The movable grip (18) is fixedly disposed on the side of the movable disc (11) away from the stationary disc (14).

Images