A seal extraction tool
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SINOPEC OILFIELD SERVICE CORPORATION
- Filing Date
- 2025-07-16
- Publication Date
- 2026-06-05
Smart Images
Figure CN224323052U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tooling and auxiliary equipment technology, and more specifically, to a tool for removing a seal. Background Technology
[0002] The sealing components of the high-temperature and high-pressure thickener are mainly used to prevent leakage of the medium inside the vessel, so that the reaction can proceed stably under the set high temperature and high pressure environment, while preventing external impurities from entering the vessel and affecting the reaction.
[0003] In actual use, the seal needs to be removed for inspection to ensure reliable performance. In specific technologies, the seal is started from the sealing groove by using the tip of a hacksaw blade or a flat-headed screwdriver. This method is very laborious and can easily damage the seal and sealing groove, affecting the subsequent sealing effect.
[0004] In summary, how to provide a method that facilitates the removal of the seal while avoiding damage to the seal and the sealing groove is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0005] In view of this, the purpose of this utility model is to provide a seal removal tool that can reliably remove the seal and avoid damage to the seal and the sealing groove.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A seal removal tool, comprising:
[0008] The chuck disk includes a main body and a plurality of elastic chucks arranged circumferentially along the main body, wherein the outer edges of the plurality of elastic chucks are capable of moving toward or away from the main body;
[0009] The driving component abuts against the main body;
[0010] A support disk, wherein the driving component is rotatably connected to the support disk;
[0011] When the driving member rotates in the forward direction relative to the support plate, the driving member can generate a pushing force to push the main body, so that the outer edge of the elastic claw moves away from the main body until it abuts against the end face of the seal that fits into the sealing groove;
[0012] When the driving component rotates in the opposite direction to the support disk, the outer edge of the elastic claw moves toward the main body.
[0013] Preferably, the driving component includes a rotating rod with a flange, which is pressed against the outer end face of the main body away from the elastic claw, and the rotating rod can rotate relative to the support disk.
[0014] Preferably, the rotating rod is disposed between the main body and the support plate, the main body has a central hole for the rotating rod to pass through, and the support plate has a threaded hole for connection with the threaded portion of the rotating rod.
[0015] Preferably, the drive unit further includes a handle, which is disposed perpendicular to the rotating rod and relatively away from the resilient pawl.
[0016] Preferably, the outer edge of the support disk is provided with an outer conical surface, which is fitted to the inner conical surface of the outer edge portion of the elastic claw.
[0017] Preferably, the outer edge of the support plate is further provided with a positioning cone surface, which is symmetrically arranged with the outer cone surface and is used to extend into the hole wall of the vessel body for positioning.
[0018] Preferably, the main body and the support plate are connected by at least one anti-rotation pin, and either the main body or the support plate is provided with an anti-rotation pin hole, while the other is provided with an anti-rotation pin groove.
[0019] Preferably, the width of the elastic claw near the main body is smaller than the width of the elastic claw away from the main body.
[0020] Preferably, the thickness of the elastic claw near the main body is less than the thickness of the elastic claw away from the main body.
[0021] Preferably, a claw groove is provided between two adjacent elastic claws, and the width of the claw groove gradually decreases along the direction away from the main body.
[0022] The seal removal tool provided by this utility model includes a claw disc, a driving component, and a support disc. Specifically, the claw disc includes a main body and multiple elastic claws arranged circumferentially along the main body. The multiple elastic claws can open relative to the main body so that the outer edges of the elastic claws abut against the end face of the seal that fits into the sealing groove. The driving component abuts against the main body. When the driving component rotates forward relative to the support disc while the support disc remains stationary, the rotation of the driving component generates a pushing force that pushes the elastic claws outward and deforms them, allowing the edges of the elastic claws to extend into the end face of the seal. Then, by lifting the driving component upward, the seal can be removed from the sealing groove. When the driving component rotates in the opposite direction relative to the support disc, the force between the driving component and the main body gradually decreases, and the elastic claws can move towards the main body. This state corresponds to the state where the elastic claws elastically reset after the removal operation is completed. This method, where the outer edge of the elastic claw contacts the end face of the seal, increases the contact area, effectively reducing damage to the seal. Furthermore, the reliable contact between the elastic claw and the end face of the seal ensures reliable stability during removal, improving efficiency. In addition, the bottom of the elastic claw fits into the sealing groove, providing positioning for the outer edge of the claw to move and engage with the edge of the seal. This fit between the bottom of the elastic claw and the sealing groove avoids scratches, minimizing damage and ensuring a good seal.
[0023] The beneficial effects of this utility model are as follows: by contacting the outer edge of the elastic claw with the seal to remove the seal, damage to the seal and the sealing groove can be avoided, and the removal process is simple and convenient, saving time and effort, and effectively improving the efficiency of removing the seal. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0025] Figure 1 This is a schematic diagram of the structure of the seal removal tool provided by this utility model;
[0026] Figure 2 for Figure 1 A sectional view;
[0027] Figure 3 A schematic diagram illustrating the application of the seal removal tool provided by this utility model;
[0028] Figure 4This is a schematic diagram of the structure of the chuck disk provided by this utility model;
[0029] Figure 5 This is a schematic diagram of the structure of the support plate provided by this utility model.
[0030] Figures 1-5 In the accompanying drawings, the reference numerals include:
[0031] 1-Claw plate; 2-Support plate; 3-Driver; 4-Anti-rotation pin; 5-Seal; 6-Bottle body;
[0032] 11-Elastic claw; 12-Claw groove; 13-Center hole; 14-Anti-rotation pin hole; 15-Inner conical surface; 16-Body body; 21-Threaded hole; 22-Anti-rotation pin groove; 23-Outer conical surface; 24-Positioning conical surface; 31-Handle; 32-Flange; 33-Threaded part; 61-Sealing groove. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0034] The core of this utility model is to provide a tool for removing seals. By contacting the outer edge of the elastic claw with the seal to remove it, the tool can reduce damage to the seal and the sealing groove. The removal process is simple and convenient, saving time and effort, and effectively improving the efficiency of removing seals.
[0035] The seal removal tool proposed in this utility model includes a chuck disk 1, a driving component 3, and a support disk 2. Please refer to [reference needed]. Figure 1 , Figure 2 .
[0036] The jaw disc 1 includes a main body 16 and a plurality of elastic jaws 11 arranged circumferentially along the main body 16. The plurality of elastic jaws 11 can open or close relative to the main body 16 so that the outer edge of the elastic jaws 11 abuts against the end face of the sealing element 5. Specifically, the elastic jaws 11 can be in the form of elastic steel, and can undergo elastic deformation when the main body 16 is subjected to force. Here, elastic deformation specifically means that the plurality of elastic jaws 11 can move away from the main body 16 or move closer to the main body 16.
[0037] It should be noted that the opening and closing mentioned above are relative. Closure is not limited to multiple elastic claws 11 being able to connect and form a structure with a closed outer periphery; it can also be that there are gaps between adjacent elastic claws 11. Closure is simply that multiple elastic claws 11 can be reset to their original state.
[0038] In addition, the connection between the main body 16 and the multiple elastic claws 11 arranged circumferentially on the main body 16 can be set as a relatively reliable welding relationship, so as to ensure that when the main body 16 is subjected to force, it can act on the elastic claws 11, so as to reliably assist the removal of the seal 5.
[0039] The driving member 3 abuts against the main body 16 and is rotatably connected to the support disk 2. The driving member 3 here has a part that abuts against the main body 16 and a part that is rotatably connected to the support disk 2. When the driving member 3 rotates by being rotatably connected to the support disk 2, the main body 16 can be subjected to a force so that the elastic claw 11 can be elastically deformed.
[0040] Specifically, when the driving member 3 rotates forward relative to the support disk 2, the driving member 3 can generate a pushing force to push the main body 16, so that the outer edge of the elastic claw 11 moves away from the main body 16 until it abuts against the end face of the sealing member 5 that is in contact with the sealing groove 61. Figure 3 As shown, the end face of the sealing element 5 that fits against the sealing groove 61 specifically refers to its lower end face. The movement of the elastic claws 11 allows their outer edges to extend between the sealing groove 61 and the lower end face of the sealing element 5, ensuring a reliable fit against the end face of the sealing element 5. The next step is to remove the sealing element 5 from the sealing groove 61 by moving the drive member 3 upwards. During this process, since the outer edges of multiple elastic claws 11 all contact the lower end face of the sealing element 5, damage to the sealing element 5 is reduced by increasing the contact area. Furthermore, this contact is not a point-to-point contact with the outer periphery of the sealing element 5, thus effectively protecting the sealing element 5 and ensuring that any undamaged sealing element 5 can continue to be used normally.
[0041] In addition, such as Figure 3 As shown, the bottom of the elastic claw 11 is a flat part in the form of a plane. When this flat part contacts the sealing groove 61, it can minimize the damage to the sealing groove 61 when the elastic claw 11 moves to contact the lower end face of the sealing member 5, avoid scratches, and avoid affecting the subsequent sealing effect.
[0042] When the drive unit 3 rotates in the opposite direction to the support plate 2, the outer edge of the elastic claw 11 moves toward the main body 16. Specifically, after the seal 5 is removed, the multiple elastic claws 11 are brought closer together, causing the seal 5 to fall off the removal tool, and the elastic claws 11 are moved until they reach the reset state. In the reset state, the drive unit 3 only abuts against the main body 16 and has no pushing force.
[0043] Of course, after the removal of a certain type of seal 5 is completed, the reverse rotation of the drive 3 can also refer to rotating in the opposite direction to a certain position to correspond to the removal of another type of seal 5. At this position, after applying a slight forward rotation force to the drive 3, the outer edge of the elastic claw 11 can be sent to the end face of the seal 5, thereby improving the efficiency of removing the seal 5.
[0044] Based on the above embodiments, the driving member 3 includes a rotating rod with a flange 32. The flange 32 is pressed against the outer end face of the main body 16 away from the elastic claw 11, and the rotating rod can rotate relative to the support plate 2.
[0045] Please refer to Figure 1 , Figure 2 The rotating rod is a component that can rotate relative to the support plate 2. During the rotation of the rotating rod, the force is transmitted through the contact between the flange 32 and the main body 16. Specifically, the flange 32 and the rotating rod can be integrally formed, welded, or detachably connected. Detachable connections here include threaded connections, and there are no specific limitations.
[0046] The rotating rod passes through the main body 16. The outer diameter of the flange 32 is larger than the diameter of the hole in the main body 16 corresponding to the rotating rod. When the rotating rod rotates in the forward direction relative to the support plate 2, the flange 32 rotates along with it and can transmit force by abutting against the main body 16.
[0047] In practical use, the removal tool is first placed at the corresponding position in the sealing groove 61. Then, the rotating rod is driven to rotate in the forward direction relative to the support plate 2. The force exerted by the flange 32 on the main body 16 gradually increases. This force can cause the outer edges of the multiple elastic claws 11 to move away from the main body 16 until the outer edges of the elastic claws 11 enter between the sealing groove 61 and the lower end face of the seal 5. At this point, the rotation of the rotating rod is stopped. The seal 5 can be easily and reliably removed from the sealing groove 61 by simply lifting the rotating rod. The operation is simple and convenient, saves time and effort, improves the removal efficiency, and avoids damage to the seal 5 and the sealing groove 61.
[0048] In this embodiment, the driving component 3 can be driven manually or by an external power device; there is no specific limitation.
[0049] Based on any of the above embodiments, please refer to Figure 1 , Figure 2 , Figure 3 The rotating rod is installed between the main body 16 and the support plate 2. The main body 16 is provided with a central hole 13 for the rotating rod to pass through, and the support plate 2 is provided with a threaded hole 21 that connects to the threaded part 33 of the rotating rod.
[0050] When the rotating rod rotates in the forward or reverse direction, the support plate 2 remains stationary, and only the rotating rod rotates relative to the threaded hole 21. Similarly, the center hole 13 on the main body 16 is only for the rotating rod to pass through, so the main body 16 will not rotate.
[0051] The distance of the threaded portion 33 on the rotating rod can be set to be longer, which can improve the applicability of the tool. The specific length, such as being greater than the depth of the threaded hole 21, can be determined based on actual operating conditions without excessive restrictions.
[0052] In this embodiment, when the rotating rod rotates relative to the threaded hole 21 of the threaded portion 33, the outer edges of the multiple elastic claws 11 can move towards or away from the main body 16, while the main body 16 itself does not rotate. Specifically, when the rotating rod rotates in the forward direction, the main body 16 moves downward under the abutment force of the flange 32, and transmits the force to the elastic claws 11, so that the outer edges of the elastic claws 11 can move away from the main body 16 until the outer edges extend into the lower end face of the seal 5, and the seal 5 is removed; when the rotating rod rotates in the reverse direction, the force of the flange 32 on the main body 16 gradually decreases, and under the action of the elastic force of the elastic claws 11, the main body 16 gradually moves upward to the desired position.
[0053] Based on any of the above embodiments, the drive member 3 also includes a handle 31, which is arranged perpendicular to the rotating rod and relatively away from the elastic claw 11.
[0054] The handle 31 provides a point of force for manual operation, specifically a point of force for rotating the rotating rod and for lifting the rotating rod and the seal 5. The handle 31 can be configured as follows: Figure 1 The crossbar shown is reliably connected to the end of the rotating rod away from the elastic claw 11. The specific connection can be detachable or welded, without limitation. Specifically, with a detachable connection, the handle 31 can be attached to the rotating rod during use and removed at other times, avoiding excessive tool footprint and facilitating storage and transportation.
[0055] To ensure the reliable use of the handle 31, the handle 31 may be provided with anti-slip texture or a wristband structure to allow the operator to insert their hand into the wristband and grip the handle 31.
[0056] Depending on the specific usage requirements, the handle 31 can also be set to other shapes, not limited to the form of the crossbar in this embodiment.
[0057] Based on any of the above embodiments, please refer to Figure 3 , Figure 4 , Figure 5The outer edge of the support plate 2 is provided with an outer conical surface 23, which is fitted to the inner conical surface 15 of the outer edge of the elastic claw 11.
[0058] When the multiple elastic claws 11 move away from or towards the main body 16, the outer conical surface 23 reliably fits against the inner conical surface 15 of the outer edge of the elastic claw 11, which can provide guidance for the movement of the elastic claws 11, ensure the reliability of the tool during use, and avoid damage to the seal 5 and the sealing groove 61 due to the movement and displacement of the elastic claws 11.
[0059] The length of the inner conical surface 15 on the outer edge of the elastic claw 11 and the length of the outer conical surface 23 on the support plate 2 can be designed according to the actual application scenario, without limiting the specific size relationship.
[0060] Based on any of the above embodiments, please refer to Figure 1 , Figure 3 , Figure 5 The outer edge of the support plate 2 is also provided with a positioning cone surface 24. The positioning cone surface 24 and the outer cone surface 23 are symmetrically arranged and are used to extend into the hole wall of the vessel body 6 for positioning.
[0061] The positioning cone surface 24 and the outer cone surface 23 here are distributed vertically, as shown below. Figure 1 As shown, the dimensions between the two conical surfaces are not subject to too many restrictions and can be designed flexibly according to the actual situation.
[0062] Since the support plate 2 is fixed, during actual tool removal, the positioning cone surface 24 first contacts and positions the support plate 2 against the wall of the vessel body 6. After ensuring the support plate 2 is accurately positioned and fixed, the rotation of the rotating rod causes the elastic claw 11 to gradually move away from the main body 16. During this process, the inner cone surface 15 of the elastic claw 11 moves along the outer cone surface 23 of the support plate 2 until the elastic claw 11 extends into the lower end face of the seal 5, allowing the seal 5 to be removed. In this process, the positioning cone surface 24 ensures the accuracy and reliability of the tool removal position, the stability and reliability of the support plate 2 during operation, and thus the reliability of removing the seal 5.
[0063] Based on any of the above embodiments, please refer to Figure 1 , Figure 4 , Figure 5 The main body 16 and the support plate 2 are connected by at least one anti-rotation pin 4. Either the main body 16 or the support plate 2 is provided with an anti-rotation pin hole 14, and the other is provided with an anti-rotation pin groove 22.
[0064] In this embodiment, the anti-rotation pin 4 is configured to ensure the reliability of keeping the support plate 2 stationary, allowing the rotating rod to rotate only within the threaded hole 21, thereby ensuring the reliability of the lifting operation.
[0065] Furthermore, by providing an anti-rotation pin hole 14 on one of the main body 16 and an anti-rotation pin groove 22 on the other, the anti-rotation pin groove 22 can be set as an elongated hole, which can achieve the effect of weight reduction while ensuring the reliability of the lifting operation.
[0066] It should be noted that the axes of the anti-rotation pin hole 14 and the center hole 13 are set parallel to each other.
[0067] Based on any of the above embodiments, the width of the elastic claw 11 near the body 16 is smaller than the width of the elastic claw 11 away from the body 16. The width direction here is as follows: Figure 4 As indicated by W, this arrangement ensures that the outer edge of the elastic claw 11 has sufficient contact area to contact the end face of the seal 5, guaranteeing the reliable release effect of the seal 5 and its protective effect.
[0068] Furthermore, by setting the width of the elastic claw 11 closer to the main body 16 to be smaller, the deformability of the elastic claw 11 can be improved, ensuring that it can reliably deform to correspond to moving away from or closer to the main body 16.
[0069] Based on any of the above embodiments, please refer to Figure 4 The thickness of the elastic claw 11 near the main body 16 is less than the thickness of the elastic claw 11 away from the main body 16. The thickness direction here is as follows: Figure 4 The direction indicated by D in the middle is [direction].
[0070] The elastic claw 11 is thicker near the main body 16, which ensures the reliability of the process when the outer edge of the elastic claw 11 extends into the end face of the seal 5, avoids the failure of operation due to the thinness, and ensures the reliability of the tool removal.
[0071] In addition, the thickness of the part of the elastic claw 11 that is far from the main body 16 is relatively small, which can also ensure the reliable deformation of the elastic claw 11 and ensure the reliability of the seal 5 removal operation.
[0072] Based on any of the above embodiments, please refer to Figure 4 A claw groove 12 is provided between two adjacent elastic claws 11, and the width of the claw groove 12 gradually decreases along the direction away from the main body 16. This gradual decrease in width corresponds to a gradual increase in the width of the elastic claws 11. The claw groove 12 allows the elastic claws 11 to have deformable space, ensuring the reliability and effectiveness of the seal removal tool. Figure 4 As shown, multiple elastic claws 11 are evenly distributed around the main body 16, and the corresponding multiple claw grooves 12 have completely identical structural forms, ensuring the symmetry and stability of the overall structure.
[0073] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.
[0074] The above provides a detailed description of a seal removal tool provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core idea of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
Claims
1. A tool for removing a seal, characterized in that, include: The chuck disk (1) includes a main body (16) and a plurality of elastic chucks (11) arranged circumferentially along the main body (16). The outer edges of the plurality of elastic chucks (11) can move toward or away from the main body (16). The driving component (3) abuts against the main body (16). Support plate (2), the driving component (3) is rotatably connected to the support plate (2); When the drive member (3) rotates in the forward direction relative to the support plate (2), the drive member (3) can generate a pushing force to push the main body (16) so that the outer edge of the elastic claw (11) moves away from the main body (16) until it abuts against the end face of the seal member (5) that fits against the sealing groove (61); When the drive member (3) rotates in the opposite direction to the support disk (2), the outer edge of the elastic claw (11) moves toward the body (16).
2. The seal removal tool according to claim 1, characterized in that, The driving component (3) includes a rotating rod with a flange (32) on it. The flange (32) is pressed against the outer end face of the main body (16) away from the elastic claw (11). The rotating rod can rotate relative to the support plate (2).
3. The seal removal tool according to claim 2, characterized in that, The rotating rod is disposed between the main body (16) and the support plate (2). The main body (16) is provided with a central hole (13) for the rotating rod to pass through, and the support plate (2) is provided with a threaded hole (21) connected to the threaded part (33) of the rotating rod.
4. The seal removal tool according to claim 3, characterized in that, The drive unit (3) also includes a handle (31), which is arranged perpendicular to the rotating rod and relatively away from the elastic claw (11).
5. The seal removal tool according to claim 4, characterized in that, The outer edge of the support plate (2) is provided with an outer conical surface (23), and the outer conical surface (23) is fitted with the inner conical surface (15) of the outer edge portion of the elastic claw (11).
6. The seal removal tool according to claim 5, characterized in that, The outer edge of the support plate (2) is also provided with a positioning cone surface (24). The positioning cone surface (24) and the outer cone surface (23) are symmetrically arranged and are used to extend into the hole wall of the vessel body (6) for positioning.
7. The seal removal tool according to claim 6, characterized in that, The main body (16) and the support plate (2) are connected by at least one anti-rotation pin (4). Either the main body (16) or the support plate (2) is provided with an anti-rotation pin hole (14), and the other is provided with an anti-rotation pin groove (22).
8. The seal removal tool according to any one of claims 1 to 7, characterized in that, The width of the elastic claw (11) near the body (16) is smaller than the width of the elastic claw (11) away from the body (16).
9. The seal removal tool according to claim 8, characterized in that, The thickness of the elastic claw (11) near the body (16) is less than the thickness of the elastic claw (11) away from the body (16).
10. The seal removal tool according to claim 9, characterized in that, A claw groove (12) is provided between two adjacent elastic claws (11), and the width of the claw groove (12) gradually decreases in the direction away from the main body (16).