Mechanical sealing element convenient to maintain

Abstract

The utility model relates to the industrial field, and discloses a mechanical sealing element convenient to maintain, which comprises a flange, a sealing element is detachably mounted in the middle of the flange, a connecting plate is fixedly connected to the outer wall of the sealing element, an inserting block is fixedly connected to the inner wall of the connecting plate, and a limiting mechanism is arranged on the inner wall of the inserting block. A guide rod is fixedly connected to the inner wall of the inserting block, a limiting groove is formed in the inner wall of the flange, a positioning assembly is arranged at the top end of the flange, the limiting mechanism comprises an L-shaped plate, and the L-shaped plate penetrates through and is slidably connected to the inner wall of the inserting block. According to the utility model, by simply operating the positioning block, the L-shaped plate, the reset spring and other parts, the sealing element can be easily separated from or connected with the related parts, when maintenance is needed, the complexity of the disassembly and assembly process can be effectively reduced, the time and labor cost can be greatly saved, the maintenance work is more efficient, and the normal operation of equipment can be recovered as soon as possible.

Description

Technical Field

[0001] This utility model relates to the industrial field, and in particular to a mechanical seal that is easy to maintain. Background Technology

[0002] Mechanical seals are widely used in industrial sectors, including engineering machinery, aerospace, metallurgy and mining, and automobile manufacturing. They play an indispensable role in the operation of hydraulic equipment, and maintenance is required for long-term stability during subsequent use.

[0003] A search revealed Chinese Patent Publication No. CN216478875U, which discloses a replaceable hydraulic mechanical seal. The seal includes a sealing head with several evenly spaced grooves on its arc-shaped top surface. A flange is mounted on the arc-shaped surface of the sealing head, and the flange is fitted onto the sealing head. A pressure head is mounted on the flange, with its top end engaging the grooves. The bottom end of the pressure head and the flange are connected by bolts. This invention addresses the problem of existing hydraulic mechanical seals being inconvenient to install and disassemble, leading to cumbersome maintenance and hindering their flexible use. By improving and optimizing the structure of the mechanical seal, it enables quick installation and disassembly, facilitating maintenance and handling, and effectively improving the flexibility of the seal. Furthermore, this structure makes the mechanical seal easy to install and operate.

[0004] The existing technology has the following drawbacks: Although the above-mentioned device can be quickly disassembled and assembled, in the actual disassembly and assembly process, the device is equipped with multiple bolts, which requires the use of additional tools to tighten the bolts multiple times, and cannot further improve the maintenance efficiency of the mechanical seal. Therefore, a mechanical seal that is easy to maintain is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a mechanical seal that is easy to maintain, aiming to improve the problem that the existing technology cannot further improve the maintenance efficiency of mechanical seals.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a mechanical seal that is easy to maintain, comprising a flange, wherein a seal is detachably installed in the middle of the flange, a connecting plate is fixedly connected to the outer wall of the seal, an insert is fixedly connected to the inner wall of the connecting plate, a limit mechanism is provided on the inner wall of the insert, a guide rod is fixedly connected to the inner wall of the insert, a limit groove is formed on the inner wall of the flange, and a positioning component is provided at the top of the flange;

[0007] The limiting mechanism includes an L-plate that passes through and is slidably connected to the inner wall of the insert block. The right end of the L-plate is elastically connected to the insert block via a reset spring, and a positioning block is slidably connected to the top end of the L-plate.

[0008] As a further description of the above technical solution:

[0009] The positioning assembly includes a positioning rod, which is fixedly connected to the top of the flange. A tapered opening is inserted into the outer wall of the positioning rod, and a fixing block is fixedly connected to the inner side of the flange.

[0010] As a further description of the above technical solution:

[0011] The positioning rods are provided in two sets, and the two sets of positioning rods are symmetrically arranged at the top of the flange.

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

[0013] The tapered opening is located at the bottom of the connecting plate, and a sealing element is inserted into the outer wall of the fixing block.

[0014] As a further description of the above technical solution:

[0015] The right end of the L-plate is fixedly connected to one end of the reset spring, and the other end of the reset spring is fixedly connected to the inner wall of the right end of the insert block.

[0016] As a further description of the above technical solution:

[0017] The L-plate is inserted into the inner wall of the limiting groove.

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

[0019] The L-plate is slidably connected to the outer wall of the guide rod, and the positioning block is engaged with the inner wall of the insert block.

[0020] As a further description of the above technical solution:

[0021] The bottom end of the connecting plate contacts the top end of the flange, and the insert block is inserted into the top end of the flange.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the separation or connection of the seal and related components can be easily achieved by simply operating the positioning block, L-plate, return spring and other components. When maintenance is required, the complexity of the disassembly and assembly process can be effectively reduced, saving time and labor costs, making maintenance work more efficient, and helping the equipment to return to normal operation as soon as possible.

[0024] 2. In this utility model, by designing a structure that combines a conical opening with a positioning rod, the arc surface of the conical opening can be used to quickly and accurately position the device during installation. This not only facilitates the installation operation but also ensures the accurate installation position of the sealing component, guaranteeing the sealing performance. It also helps maintain the stability of the overall structure and improves the reliability of the equipment operation. Attached Figure Description

[0025] Figure 1 A three-dimensional schematic diagram of the flange and the sealing element of a mechanical seal that is easy to maintain, as proposed in this utility model;

[0026] Figure 2 This is an exploded view of the flange and the seal of a mechanical seal that is easy to maintain, as proposed in this utility model.

[0027] Figure 3 A cross-sectional view of a flange for a mechanical seal that is easy to maintain, as proposed in this utility model;

[0028] Figure 4 This utility model presents a three-dimensional schematic diagram of the connecting plate and insert block of a mechanical seal that is easy to maintain.

[0029] Figure 5 This is a cross-sectional schematic diagram of the insert block of a mechanical seal that is easy to maintain according to this utility model;

[0030] Figure 6 This is a schematic diagram illustrating the conical opening of a mechanical seal that is easy to maintain, as proposed in this utility model.

[0031] Legend:

[0032] 1. Flange; 2. Seal; 3. Connecting plate; 4. Insert block; 5. L-plate; 6. Return spring; 7. Guide rod; 8. Positioning block; 9. Limiting groove; 10. Positioning rod; 11. Conical opening; 12. Fixing block. 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] Reference Figures 1-3This utility model provides an embodiment of a mechanical seal that is easy to maintain, including a flange 1. A seal 2 is detachably installed in the middle of the flange 1. The seal 2 is a sealing material for existing hydraulic equipment and can be used to seal the hydraulic equipment laterally. A connecting plate 3 is fixedly connected to the outer wall of the seal 2. The connecting plate 3 mainly supports the connecting block 4. The block 4 is fixedly connected to the inner wall of the connecting plate 3. The inner wall of the block 4 is provided with a limit mechanism. A guide rod 7 is fixedly connected to the inner wall of the block 4. The guide rod 7 allows the L plate 5 to move laterally without deviation of the movement trajectory. A limit groove 9 is opened in the inner wall of the flange 1. A positioning component is provided at the top of the flange 1.

[0035] The limiting mechanism includes an L-plate 5, which is slidably connected to the inner wall of the insert block 4. The insert block 4 has a slot corresponding to the L-plate 5, which allows the L-plate 5 to move along the inner wall of the insert block 4. The right end of the L-plate 5 is elastically connected to the insert block 4 through a return spring 6. A positioning block 8 is slidably connected to the top of the L-plate 5. The positioning block 8 and the L-plate 5 are slidable. When the positioning block 8 coincides with the opening on the insert block 4, it can move.

[0036] Reference Figure 2 , Figure 3 and Figure 6 The positioning assembly includes a positioning rod 10, which is fixedly connected to the top of the flange 1. The top of the positioning rod 10 is round, which allows the top of the positioning rod 10 to slide more smoothly into the conical opening 11. The outer wall of the positioning rod 10 is fitted with the conical opening 11. Guided by the conical surface of the conical opening 11, it can automatically slide into the accurate position for quick positioning. A fixing block 12 is fixedly connected to the inner side of the flange 1. The fixing block 12 is mainly connected to the lower half of the sealing element 2 to ensure the installation position of the sealing element 2 and also to play a positioning role. There are two sets of positioning rods 10, which are symmetrically arranged on the top of the flange 1.

[0037] A tapered opening 11 is formed at the bottom end of the connecting plate 3, such as... Figure 6 As shown, the conical opening 11 is wider at the bottom and narrower at the top. A sealing element 2 is inserted into the outer wall of the fixing block 12. The sealing element 2 has a corresponding groove on the fixing block 12, which allows the groove to overlap with the fixing block 12 to play a role in positioning and support.

[0038] Reference Figures 3-5The right end of L-plate 5 is fixedly connected to one end of the return spring 6. When L-plate 5 moves to the right, it will compress the return spring 6. When resetting, the elastic force of the return spring 6 will bring L-plate 5 back to its original position. The other end of the return spring 6 is fixedly connected to the inner wall of the right end of the insert block 4. L-plate 5 is inserted into the inner wall of the limiting groove 9. L-plate 5 is slidably connected to the outer wall of the guide rod 7. The positioning block 8 is snapped into the inner wall of the insert block 4. The insert block 4 has an opening so that the positioning block 8 can be snapped into the insert block 4. The bottom end of the connecting plate 3 is in contact with the top end of the flange 1. The insert block 4 is inserted into the top end of the flange 1. The flange 1 has a slot corresponding to the insert block 4 so that it can be inserted.

[0039] Working principle: Firstly, when quick disassembly and assembly of seal 2 is required, simply move the positioning block 8 to the right, moving the L-plate 5 to the right and compressing the return spring 6, causing the L-plate 5 to separate from the groove of the limiting groove 9. Then, when the openings of the positioning block 8 and the insert block 4 overlap, move the positioning block 8 backward to allow the opening of the insert block 4 to engage with the positioning block 8. Using the positioning block 8 to block the opening of the insert block 4, the L-plate 5 remains separated from the limiting groove 9. Then, separate the L-plate 5 from the groove of the limiting groove 9 on the other sets of insert blocks 4. Finally, move the entire seal 2 upward, allowing... The tapered opening 11 on the connecting plate 3 can be separated from the positioning rod 10. When installation is required, simply insert the tapered opening 11 on the connecting plate 3 into the positioning rod 10 from top to bottom. Use the arc surface of the tapered opening 11 to quickly position it with the positioning rod 10, and let the insert block 4 be inserted into the flange 1. After the insertion is completed, move the positioning blocks 8 forward one by one to separate the opening of the positioning block 8 from the insertion block 4. Since there is no obstruction from the positioning block 8, the reverse elastic force of the return spring 6 will move the L plate 5 and the positioning block 8 to the left to reset, allowing the L plate 5 to be inserted into the inner wall of the limiting groove 9 to complete the disassembly and assembly process.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A maintenance-friendly mechanical seal, comprising a flange (1), characterized in that: A sealing element (2) is detachably installed in the middle of the flange (1). A connecting plate (3) is fixedly connected to the outer wall of the sealing element (2). A plug (4) is fixedly connected to the inner wall of the connecting plate (3). A limit mechanism is provided on the inner wall of the plug (4). A guide rod (7) is fixedly connected to the inner wall of the plug (4). A limit groove (9) is opened on the inner wall of the flange (1). A positioning component is provided at the top of the flange (1). The limiting mechanism includes an L-plate (5), which is slidably connected to the inner wall of the insert (4). The right end of the L-plate (5) is elastically connected to the insert (4) via a reset spring (6), and a positioning block (8) is slidably connected to the top end of the L-plate (5).

2. The easy-to-maintain mechanical seal according to claim 1, characterized in that: The positioning assembly includes a positioning rod (10), which is fixedly connected to the top of the flange (1). A tapered opening (11) is inserted into the outer wall of the positioning rod (10), and a fixing block (12) is fixedly connected to the inner side of the flange (1).

3. The easy-to-maintain mechanical seal according to claim 2, characterized in that: The positioning rods (10) are provided in two sets, and the two sets of positioning rods (10) are symmetrically arranged at the top of the flange (1).

4. The easy-to-maintain mechanical seal according to claim 2, characterized in that: The conical opening (11) is located at the bottom of the connecting plate (3), and a sealing element (2) is inserted into the outer wall of the fixing block (12).

5. A maintenance-friendly mechanical seal according to claim 1, characterized in that: The right end of the L plate (5) is fixedly connected to one end of the reset spring (6), and the other end of the reset spring (6) is fixedly connected to the inner wall of the right end of the insert block (4).

6. A maintenance-friendly mechanical seal according to claim 1, characterized in that: The L plate (5) is inserted into the inner wall of the limiting groove (9).

7. A maintenance-friendly mechanical seal according to claim 1, characterized in that: The L plate (5) is slidably connected to the outer wall of the guide rod (7), and the positioning block (8) is snapped into the inner wall of the insert block (4).

8. A maintenance-friendly mechanical seal according to claim 1, characterized in that: The bottom end of the connecting plate (3) is in contact with the top end of the flange (1), and the insert (4) is inserted into the top end of the flange (1).

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