Mechanical seal ring

Abstract

The utility model discloses a mechanical seal ring belongs to sealing ring technical field, this mechanical seal ring is including static seal ring, the surface fixed mounting of static seal ring has a plurality of fixed establishment, static seal ring inside detachably installs the connecting sleeve, the connecting sleeve inside rotationally connected with dynamic seal ring, the surface of dynamic seal ring and the surface of static seal ring are pasted, the surface fixed mounting of dynamic seal ring has the limit mechanism, and the one side detachably installed of dynamic seal ring has second butt joint ring, and the fixed establishment is fixed between connecting sleeve and static seal ring, makes static seal ring and dynamic seal ring between formation pasting, ensures static seal ring and the coaxiality and parallelism between dynamic seal ring, when needing to replace, through limit mechanism makes second butt joint ring can quickly away from the surface of dynamic seal ring, realizes the quick replacement of second butt joint ring, improves the replacement efficiency, avoids the damage of other parts simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of sealing ring technology, and in particular to a mechanical sealing ring. Background Technology

[0002] A mechanical seal ring is a sealing element used in mechanical devices. Its main function is to prevent liquids or gases from leaking out of the moving parts of the equipment, while also preventing external impurities from entering the equipment. A mechanical seal ring generally consists of two parts: a static seal ring and a dynamic seal ring. The static and dynamic seal rings are in close contact at one end face to achieve a mechanical seal. In actual operating conditions, due to continuous contact and relative movement, wear is often unavoidable between these two sealing rings. Once the wear reaches a certain level, the smoothness and roughness of the sealing surface will decrease, leading to increased leakage, accumulation of frictional heat, and potentially even equipment failure or safety accidents. Therefore, regularly replacing worn seal rings is a necessary measure to ensure the normal operation of equipment.

[0003] The replacement of existing mechanical seal rings presents significant inconveniences. On the one hand, the installation structure of traditional seal rings is often quite complex, requiring disassembly of the equipment body and sealing cavity, and may even require special tools to remove the stationary or rotating rings. This process is not only time-consuming and labor-intensive, but may also damage other components due to improper operation. On the other hand, some seal rings are fixed by interference fit or threaded connection, which may become difficult to separate due to corrosion or deformation after long-term use, further increasing the difficulty of replacement. In addition, the assembly precision requirements for stationary and rotating rings are extremely high. If the coaxiality, parallelism, or end face pressure uniformity of the two are not strictly guaranteed during replacement, even if a new seal ring is replaced, the seal may still fail due to installation errors.

[0004] Therefore, there is an urgent need to provide a mechanical sealing ring to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a mechanical sealing ring.

[0006] To solve the above technical problems, the present invention provides a mechanical sealing ring, including a static sealing ring, wherein a plurality of fixing mechanisms are fixedly installed on the surface of the static sealing ring, and a connecting sleeve is detachably installed inside the static sealing ring. The fixing mechanisms are used to fix the connection between the static sealing ring and the connecting sleeve, and the invention also includes;

[0007] The connecting sleeve is rotatably connected to a dynamic sealing ring, and the surface of the dynamic sealing ring is in contact with the surface of the static sealing ring.

[0008] A limiting mechanism is fixedly installed on the surface of the dynamic sealing ring. A second mating ring is detachably installed on one side of the dynamic sealing ring. The limiting mechanism is used to restrict the second mating ring so that the second mating ring is fixed on the surface of the dynamic sealing ring.

[0009] The present invention is further configured such that: a bearing is fixedly installed inside the static sealing ring, a first connecting seat is fixedly installed on one side of the bearing, a first mating ring is fixedly installed on one side of the first connecting seat, the first mating ring and the second mating ring are movably fitted together, and multiple slots and grooves are provided on the surface of the static sealing ring.

[0010] With the above technical solution, when the dynamic sealing ring rotates, the bearing can rotate due to the contact between the first mating ring and the second mating ring, while the outside of the bearing remains stationary, thus allowing the static sealing ring to remain stationary. The slot is used for the insertion of the insert block, and the groove is used for the sliding of the slider.

[0011] The present invention is further configured such that: the fixing mechanism includes a slider, the slider is slidably connected inside the slide groove, a locking block is fixedly installed on the lower surface of the slider, a pull plate is fixedly installed on the upper surface of the slider, and a first spring is fixedly connected between the lower surface of the slider and the inner wall of the slide groove.

[0012] With the above technical solution, when the connecting sleeve and the static sealing ring need to be fixed, the slider is pulled upward by the pull plate, and the locking block moves into the groove. When the insert block is inserted into the slot, the pull plate is released, and under the action of the first spring, the locking block is inserted into the slot to fix the insert block, thereby forming a stable connection between the connecting sleeve and the static sealing ring.

[0013] The present invention is further configured such that: a plurality of insert blocks are fixedly installed on the surface of the connecting sleeve, and the surface of the insert blocks is provided with slots, and the slot blocks are movably inserted into the slots.

[0014] With the above technical solution, after the insert block is inserted into the slot, the card block is inserted into the slot, thereby forming a connection between the connecting sleeve and the static sealing ring.

[0015] The present invention is further configured such that: the surface of the dynamic sealing ring is provided with an annular groove, the connecting sleeve is rotatably connected inside the annular groove, a second connecting seat is fixedly installed on one side of the dynamic sealing ring, the surface of the second connecting seat is provided with a plurality of positioning holes, a second spring is fixedly installed inside the positioning holes, the surface of the positioning holes is provided with a rotating groove, a fixing ring is fixedly installed on the surface of the second connecting seat, an insertion hole is provided on the surface of the fixing ring, and a pin is movably inserted into the insertion hole.

[0016] With the above technical solution, when the dynamic sealing ring rotates, the connection sleeve ensures its stability. The positioning pin and positioning hole work together to fix the second mating ring on the surface of the second connecting seat. When the positioning pin is inserted into the positioning hole, it compresses the second spring, causing the second spring to contract. When the second mating ring needs to be removed, the second spring ejects it for easy removal. The rotating groove is used for the rotation of the rotating ring. The insertion hole and pin work together to continuously restrict the second mating ring.

[0017] The present invention is further configured such that: the limiting mechanism includes a rotating ring, the rotating ring is rotatably connected to the surface of the second connecting seat, a plurality of limiting blocks are fixedly installed inside the rotating ring, the limiting blocks are rotatably connected inside the rotating groove, and the pin is movably inserted inside the rotating ring.

[0018] With the above technical solution, when it is necessary to remove the second docking ring from the surface of the second connecting seat, the rotating ring is rotated, the limiting block rotates inside the rotating groove and moves away from the surface of the positioning post, thus canceling the limitation on the positioning post. At this time, the second docking ring is popped out under the rebound action of the second spring, making it convenient for staff to pick up and replace.

[0019] The present invention is further configured such that: a plurality of positioning posts are fixedly installed on one side of the second docking ring, the positioning posts are movably inserted into the positioning hole, the end of the positioning post is movably fitted with the end of the second spring, and the limiting block is movably fitted with the end of the positioning post.

[0020] With the above technical solution, after the positioning pin is inserted into the positioning hole, a connection is formed between the second docking ring and the second connecting seat. The positioning pin compresses the second spring, and when the second docking ring is disassembled, the second spring pops the second docking ring out.

[0021] The beneficial effects of this utility model are as follows:

[0022] This utility model is equipped with a fixing mechanism and a limiting mechanism. The fixing mechanism fixes the connecting sleeve and the static sealing ring, so that the static sealing ring and the dynamic sealing ring fit together, ensuring the coaxiality and parallelism between the static sealing ring and the dynamic sealing ring. When replacement is required, the limiting mechanism allows the second mating ring to quickly move away from the surface of the dynamic sealing ring, realizing the rapid replacement of the second mating ring, improving the replacement efficiency, and avoiding damage to other components. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the device of this utility model;

[0024] Figure 2 This is a cross-sectional exploded view of the device of this utility model;

[0025] Figure 3 This is a schematic diagram of the static sealing ring structure of the device of this utility model;

[0026] Figure 4 The device of this utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0027] Figure 5 The device of this utility model Figure 3 Enlarged schematic diagram of the structure at point B.

[0028] In the diagram: 1. Static sealing ring; 11. Bearing; 12. First connecting seat; 13. First mating ring; 14. Slot; 15. Slide groove; 2. Fixing mechanism; 21. Slider; 22. Locking block; 23. Pull plate; 24. First spring; 3. Connecting sleeve; 31. Insert block; 32. Locking groove; 4. Dynamic sealing ring; 41. Ring groove; 42. Second connecting seat; 43. Positioning hole; 44. Second spring; 45. Rotating groove; 46. Fixing ring; 47. Insertion hole; 48. Pin; 5. Limiting mechanism; 51. Rotating ring; 52. Limiting block; 6. Second mating ring; 61. Positioning post. Detailed Implementation

[0029] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0030] Please see Figures 1-5 This application provides a mechanical sealing ring, including a static sealing ring 1. Multiple fixing mechanisms 2 are fixedly installed on the surface of the static sealing ring 1. A connecting sleeve 3 is detachably installed inside the static sealing ring 1. The fixing mechanisms 2 are used to fix the connection between the static sealing ring 1 and the connecting sleeve 3.

[0031] like Figure 3 As shown, a bearing 11 is fixedly installed inside the static sealing ring 1. A first connecting seat 12 is fixedly installed on one side of the bearing 11. A first docking ring 13 is fixedly installed on one side of the first connecting seat 12. The first docking ring 13 and the second docking ring 6 are movably fitted together. Multiple slots 14 and grooves 15 are provided on the surface of the static sealing ring 1.

[0032] In this embodiment: when the dynamic sealing ring 4 rotates, the bearing 11 can rotate through the contact between the first mating ring 13 and the second mating ring 6, and the outside of the bearing 11 is stationary, so that the static sealing ring 1 can remain stationary. The slot 14 is used for the insertion of the insert block 31, and the slide groove 15 is used for the sliding of the slider 21.

[0033] like Figure 5As shown, the fixing mechanism 2 includes a slider 21, which is slidably connected inside the slide groove 15. A locking block 22 is fixedly installed on the lower surface of the slider 21, and a pull plate 23 is fixedly installed on the upper surface of the slider 21. A first spring 24 is fixedly connected between the lower surface of the slider 21 and the inner wall of the slide groove 15.

[0034] In this embodiment: when the connecting sleeve 3 and the static sealing ring 1 need to be fixed, the slider 21 is pulled upward by the pull plate 23, and the locking block 22 moves into the slide groove 15. When the insert block 31 is inserted into the slot 14, the pull plate 23 is released. Under the action of the first spring 24, the locking block 22 is inserted into the slot 32 to fix the insert block 31, thereby forming a stable connection between the connecting sleeve 3 and the static sealing ring 1.

[0035] like Figure 2 As shown, multiple inserts 31 are fixedly installed on the surface of the connecting sleeve 3. The surface of the insert 31 is provided with a slot 32, and the slot 22 is movably inserted into the slot 32.

[0036] In this embodiment: after the insert block 31 is inserted into the slot 14, the card block 22 is inserted into the slot 32, thereby forming a connection between the connecting sleeve 3 and the static sealing ring 1.

[0037] The connecting sleeve 3 is rotatably connected to a dynamic sealing ring 4, and the surface of the dynamic sealing ring 4 is in contact with the surface of the static sealing ring 1.

[0038] like Figure 4 As shown, the dynamic sealing ring 4 has an annular groove 41 on its surface, and the connecting sleeve 3 is rotatably connected inside the annular groove 41. A second connecting seat 42 is fixedly installed on one side of the dynamic sealing ring 4. The surface of the second connecting seat 42 has multiple positioning holes 43. A second spring 44 is fixedly installed inside the positioning holes 43. The surface of the positioning holes 43 has a rotating groove 45. A fixing ring 46 is fixedly installed on the surface of the second connecting seat 42. The surface of the fixing ring 46 has an insertion hole 47. A pin 48 is movably inserted into the insertion hole 47.

[0039] In this embodiment: when the dynamic sealing ring 4 rotates, the connection sleeve 3 ensures that the dynamic sealing ring 4 remains stable. The positioning pin 61 and the positioning hole 43 cooperate to fix the second docking ring 6 on the surface of the second connecting seat 42. When the positioning pin 61 is inserted into the positioning hole 43, it compresses the second spring 44, causing the second spring 44 to contract. When the second docking ring 6 needs to be removed, the second spring 44 pops the second docking ring 6 out for easy removal. The rotating groove 45 is used for the rotation of the rotating ring 51. The insertion hole 47 and the pin 48 cooperate to ensure that the rotating ring 51 continuously restricts the second docking ring 6.

[0040] A limiting mechanism 5 is fixedly installed on the surface of the dynamic sealing ring 4. A second mating ring 6 is detachably installed on one side of the dynamic sealing ring 4. The limiting mechanism 5 is used to limit the second mating ring 6 so that the second mating ring 6 is fixed on the surface of the dynamic sealing ring 4.

[0041] like Figure 2 As shown, the limiting mechanism 5 includes a rotating ring 51, which is rotatably connected to the surface of the second connecting seat 42. Multiple limiting blocks 52 are fixedly installed inside the rotating ring 51, and the limiting blocks 52 are rotatably connected inside the rotating groove 45. A pin 48 is movably inserted inside the rotating ring 51.

[0042] In this embodiment: when it is necessary to remove the second docking ring 6 from the surface of the second connecting seat 42, the rotating ring 51 is rotated, the limiting block 52 rotates inside the rotating groove 45 and moves away from the surface of the positioning post 61, thus canceling the limitation on the positioning post 61. At this time, the second docking ring 6 is ejected under the rebound action of the second spring 44, making it convenient for staff to pick up and replace.

[0043] like Figure 2 As shown, a plurality of positioning pins 61 are fixedly installed on one side of the second docking ring 6. The positioning pins 61 are movably inserted into the positioning hole 43. The end of the positioning pin 61 is movably fitted with the end of the second spring 44. The limiting block 52 is movably fitted with the end of the positioning pin 61.

[0044] In this embodiment: after the positioning pin 61 is inserted into the positioning hole 43, a connection is formed between the second docking ring 6 and the second connecting seat 42. The positioning pin 61 compresses the second spring 44. When the second docking ring 6 is disassembled, the second spring 44 pops the second docking ring 6 out.

[0045] When this utility model is in use, the static sealing ring 1 and the dynamic sealing ring 4 are in a close fit. When the second mating ring 6 needs to be replaced, first pull the pull plate 23, the locking block 22 moves out of the slot 32, the insert block 31 moves out of the slot 14, and the connecting sleeve 3 drives the dynamic sealing ring 4 away from the surface of the static sealing ring 1. At this time, the pin 48 is moved out of the insertion hole 47, the rotating ring 51 is rotated, and the limiting block 52 rotates in the rotating groove 45, thereby moving away from the surface of the positioning post 61 and canceling the limitation on the positioning post 61. The second spring 44 pops out the second mating ring 6, so that the second mating ring 6 can be moved out of the surface of the second connecting seat 42 for replacement.

[0046] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A mechanical seal ring comprising a static seal ring (1), characterized in that, The surface of the static sealing ring (1) is fixedly equipped with multiple fixing mechanisms (2), and a connecting sleeve (3) is detachably installed inside the static sealing ring (1). The fixing mechanism (2) is used to fix the connection between the static sealing ring (1) and the connecting sleeve (3), and also includes; The connecting sleeve (3) is rotatably connected to a dynamic sealing ring (4), and the surface of the dynamic sealing ring (4) is in contact with the surface of the static sealing ring (1). A limiting mechanism (5) is fixedly installed on the surface of the dynamic sealing ring (4). A second mating ring (6) is detachably installed on one side of the dynamic sealing ring (4). The limiting mechanism (5) is used to restrict the second mating ring (6) so that the second mating ring (6) is fixed on the surface of the dynamic sealing ring (4).

2. A mechanical seal ring according to claim 1, characterized in that: The static sealing ring (1) has a bearing (11) fixedly installed inside. A first connecting seat (12) is fixedly installed on one side of the bearing (11). A first docking ring (13) is fixedly installed on one side of the first connecting seat (12). The first docking ring (13) and the second docking ring (6) are movably fitted together. The surface of the static sealing ring (1) is provided with multiple slots (14) and grooves (15).

3. A mechanical seal ring according to claim 2, wherein: The fixing mechanism (2) includes a slider (21), which is slidably connected inside the slide groove (15). A locking block (22) is fixedly installed on the lower surface of the slider (21), and a pull plate (23) is fixedly installed on the upper surface of the slider (21). A first spring (24) is fixedly connected between the lower surface of the slider (21) and the inner wall of the slide groove (15).

4. A mechanical seal ring according to claim 3, wherein: Multiple inserts (31) are fixedly installed on the surface of the connecting sleeve (3). The surface of the insert (31) is provided with a slot (32), and the slot (22) is movably inserted into the slot (32).

5. A mechanical seal ring according to claim 4, wherein: The dynamic sealing ring (4) has an annular groove (41) on its surface. The connecting sleeve (3) is rotatably connected inside the annular groove (41). A second connecting seat (42) is fixedly installed on one side of the dynamic sealing ring (4). A plurality of positioning holes (43) are opened on the surface of the second connecting seat (42). A second spring (44) is fixedly installed inside the positioning hole (43). A rotating groove (45) is opened on the surface of the positioning hole (43). A fixing ring (46) is fixedly installed on the surface of the second connecting seat (42). An insertion hole (47) is opened on the surface of the fixing ring (46). A pin (48) is movably inserted into the insertion hole (47).

6. A mechanical seal ring according to claim 5, wherein: The limiting mechanism (5) includes a rotating ring (51), which is rotatably connected to the surface of the second connecting seat (42). Multiple limiting blocks (52) are fixedly installed inside the rotating ring (51), and the limiting blocks (52) are rotatably connected inside the rotating groove (45). The pin (48) is movably inserted inside the rotating ring (51).

7. A mechanical seal ring according to claim 6, characterized in that: A plurality of positioning posts (61) are fixedly installed on one side of the second docking ring (6). The positioning posts (61) are movably inserted into the positioning hole (43). The end of the positioning post (61) is movably attached to the end of the second spring (44). The limiting block (52) is movably attached to the end of the positioning post (61).

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