An easy-to-install profiled toothed gasket

Abstract

The utility model provides an easy to install's special tooth shape pad relates to industrial parts technical field, including metal outer ring, the inside of metal outer ring is provided with inner positioning assembly, and inner positioning assembly includes four compression springs, and the one end of each compression spring is connected with the inner wall of metal outer ring fixedly, and the other end of each compression spring is fixedly connected with arc extrusion block, and the outside of metal outer ring is provided with outer positioning assembly, and outer positioning assembly includes four buckles, and the inner wall of each buckle is in contact with the outer surface of metal outer ring, and the inner wall of each buckle is fixedly connected with T type expansion joint, and each T type expansion joint is slidably connected in the inside of metal outer ring. The easy to install's special tooth shape pad, play to the accurate positioning of special tooth shape pad and flange can be realized fast, and single person can complete installation operation, and the labor intensity is reduced greatly, and the installation convenience is promoted, and the leakage rate is reduced, and it has practicality, and the installation efficiency and the sealing reliability effect of improving.

Description

Technical Field

[0001] This utility model relates to an irregular toothed pad, specifically an easy-to-install irregular toothed pad, belonging to the field of industrial parts technology. Background Technology

[0002] Toothed gaskets are a type of gasket. They are soft metal gaskets with a better sealing effect than flat metal gaskets. They are typically made by machining concentric 90-degree wavy grooves on both sides of a flat stainless steel gasket using a precision lathe. Depending on the medium, flexible graphite, PTFE, asbestos-free board, or other soft metals can be selected and bonded to both sides of the gasket. By utilizing the sealing properties of the soft covering layer and the advantages of the metal's strength and elasticity, as well as the labyrinth seal effect, the same sealing effect is achieved, but with a lower gasket compression force.

[0003] Chinese Patent Publication CN214946344U discloses a metal toothed gasket, which includes a gasket body with a ring structure. The gasket body has a through hole at its center. The ring width of the gasket body is less than or equal to 5 mm. A pair of convex rings are provided on each side of the gasket body. A cavity is formed between the convex rings. A support plane is provided on the top of the convex rings. A graphite ring is fixed to the outside of the convex rings.

[0004] The aforementioned patented technology relies on manual alignment during installation, resulting in low positioning accuracy and low installation efficiency. Therefore, a non-serrated pad that is easy to install is proposed here. Utility Model Content

[0005] This invention proposes an easy-to-install irregular toothed pad to solve the problems of low positioning accuracy and low installation efficiency in the prior art, which relies on manual alignment during installation.

[0006] 3. This utility model is achieved through the following technical solution: an easy-to-install irregular toothed pad, including a metal outer ring, wherein an inner positioning component is provided inside the metal outer ring;

[0007] The inner positioning component includes four compression springs, one end of each compression spring is fixedly connected to the inner wall of the metal outer ring, and the other end of each compression spring is fixedly connected to an arc-shaped clamping block.

[0008] An external positioning component is provided on the outside of the metal outer ring.

[0009] The external positioning component includes four buckles, the inner wall of each buckle is in contact with the outer surface of the metal outer ring, and a T-shaped telescopic block is fixedly connected to the inner wall of each buckle. Each T-shaped telescopic block is slidably connected inside the metal outer ring.

[0010] The metal outer ring has four through holes on its front side, each of which corresponds to a bolt hole on the flange.

[0011] Both the front and back sides of the metal outer ring are fixedly connected to a soft layer, and both soft layers are made of modified polytetrafluoroethylene material.

[0012] A telescopic rod is fixedly connected to the back of the arc-shaped clamping block, and the telescopic rod is built into the inside of the compression spring.

[0013] The outer surface of the soft layer is provided with wavy toothed grooves, and the outer surface of the buckle is provided with anti-slip grooves arranged at equal intervals.

[0014] This utility model provides an easy-to-install irregular toothed pad, which has the following beneficial effects:

[0015] This easy-to-install, irregularly shaped toothed gasket achieves rapid and precise positioning and reliable sealing through the synergistic action of the metal outer ring, inner positioning components, and outer positioning components. The inner positioning component utilizes a compression spring combined with an arc-shaped clamping block to provide continuous clamping force. The telescopic rod, built into the compression spring, moves synchronously with the spring's extension and retraction while limiting radial deviation, ensuring the arc-shaped clamping block maintains stable clamping. Furthermore, the height of the arc-shaped clamping block exceeds the height of the soft layer, achieving automatic centering of the flange's inner diameter and the gasket, shortening installation time and solving the problem of repeated adjustments required during traditional gasket installation. The four clips in the outer positioning component precisely engage with the flange's outer diameter. The snap-fit ​​design features anti-slip grooves on the buckle, allowing operators to manually rotate and adjust it after pre-installation alignment. These grooves increase friction during buckle rotation, reducing labor intensity. This design also ensures the through-holes on the metal outer ring align concentrically with the bolt holes on the flange. Simultaneously, the metal outer ring and the modified PTFE soft layer form a gradient sealing interface, which, combined with the wavy toothed grooves, increases the sealing contact area, reducing leakage and significantly improving sealing reliability. This design enables rapid and precise positioning of irregularly shaped toothed gaskets and flanges, allowing for single-person installation, greatly reducing labor intensity, and improving installation efficiency and sealing reliability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the metal outer ring structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the soft layer structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the buckle and T-shaped telescopic block structure of this utility model.

[0019] Explanation of reference numerals in the attached figures

[0020] 1. Metal outer ring;

[0021] 2. Internal positioning component; 201. Compression spring; 202. Arc-shaped clamping block;

[0022] 3. External positioning component; 301. Buckle; 302. T-shaped telescopic block;

[0023] 4. Through hole; 5. Soft layer; 6. Telescopic rod; 7. Wavy toothed groove; 8. Anti-slip groove. Detailed Implementation

[0024] 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 a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0025] Please see Figures 1-3 This utility model embodiment provides an easy-to-install irregular toothed pad, including a metal outer ring 1, and an inner positioning component 2 is provided inside the metal outer ring 1;

[0026] The inner positioning component 2 includes four compression springs 201. One end of each compression spring 201 is fixedly connected to the inner wall of the outer metal ring 1, and the other end of each compression spring 201 is fixedly connected to an arc-shaped clamping block 202. A telescopic rod 6 is fixedly connected to the back of the arc-shaped clamping block 202, and the telescopic rod 6 is built into the inside of the compression spring 201.

[0027] Please refer to this carefully. Figure 2 and Figure 3 An external positioning component 3 is provided on the outside of the metal outer ring 1. The external positioning component 3 includes four buckles 301. The inner wall of each buckle 301 is in contact with the outer surface of the metal outer ring 1. A T-shaped telescopic block 302 is fixedly connected to the inner wall of each buckle 301. Each T-shaped telescopic block 302 is slidably connected inside the metal outer ring 1. The T-shaped structure ensures the flexibility of the buckle 301 sliding radially along the metal outer ring 1 and prevents the buckle 301 from falling off. The buckle 301 can adjust the extension length according to the outer diameter of the flange to adapt to the positioning requirements of flanges of different specifications.

[0028] Please refer to this carefully. Figure 1 and Figure 3 The metal outer ring 1 has four through holes 4 on its front side. Each through hole 4 corresponds to a bolt hole on the flange. The diameter of the hole is slightly larger than the diameter of the flange bolt. By pre-positioning the hole, the alignment deviation during bolt tightening is reduced, ensuring the relative position of the gasket and the flange is stable during installation.

[0029] Please refer to this carefully. Figure 2The metal outer ring 1 has a soft layer 5 fixedly connected to both the front and back sides. Both soft layers 5 are made of modified polytetrafluoroethylene (PTFE), which combines the corrosion resistance, high and low temperature resistance and elastic deformation capability of PTFE. The metal outer ring 1 and the modified PTFE soft layer 5 form a gradient sealing interface. The wavy toothed groove 7 increases the sealing contact area, reduces the leakage rate, and significantly improves the sealing reliability.

[0030] Please refer to this carefully. Figure 2 The outer surface of the soft layer 5 is provided with a wavy toothed groove 7. The wavy toothed groove 7 can increase the sealing contact area, reduce the leakage rate, and significantly improve the sealing reliability. The outer surface of the buckle 301 is provided with anti-slip grooves 8 arranged at equal intervals. The design of the anti-slip grooves 8 makes it easy for the operator to manually rotate and adjust after pre-installation and alignment. Its concave and convex texture can increase the friction between the operator's hand and the buckle 301, thereby reducing labor intensity, avoiding slippage, reducing the difficulty of alignment and adjustment, and further improving the ease of installation.

[0031] When using this utility model: First, select a suitable toothed gasket according to the size of the flange. When the toothed gasket is aligned with the flange, the compression spring 201 of the inner positioning component 2 pushes the arc-shaped clamping block 202 to generate a radial clamping force. The telescopic rod 6 is built into the compression spring 201, which can move synchronously with the compression spring 201 and limit the radial displacement of the compression spring 201, ensuring that the arc-shaped clamping block 202 always maintains a stable clamping. At this time, the outer diameter of the arc-shaped clamping block 202 is in contact with the inner wall of the flange, and the height of the arc-shaped clamping block 302 is higher than the height of the soft layer 5, realizing the automatic centering of the flange and the gasket.

[0032] Then, the four buckles 301 of the outer positioning component 3 are used to achieve quick positioning with the outer diameter of the flange. The anti-slip groove 8 design of the buckle 301 allows the operator to rotate the irregular toothed pad as a whole to adjust after pre-installation and alignment. The anti-slip groove 8 increases the friction of the operator rotating the buckle 301, thereby reducing labor intensity. This allows the through hole 4 on the metal outer ring 1 to correspond concentrically with the bolt hole on the flange, achieving precise positioning and reducing installation alignment time.

[0033] During the final flange bolt tightening process, the outer metal ring 1 undergoes elastic deformation, which drives the wavy toothed groove 7 of the soft layer 5 to form multiple sealing interfaces. At the same time, the buckle 301 forms a mechanical interlock with the flange surface to ensure alignment accuracy. The installation operation can be completed by a single person, which greatly reduces labor intensity and improves installation efficiency and sealing reliability.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An easy-to-install irregular toothed pad, comprising a metal outer ring (1), characterized in that: An internal positioning component (2) is provided inside the outer metal ring (1); The inner positioning component (2) includes four compression springs (201), one end of each compression spring (201) is fixedly connected to the inner wall of the metal outer ring (1), and the other end of each compression spring (201) is fixedly connected to an arc-shaped clamping block (202). An external positioning component (3) is provided on the outside of the metal outer ring (1).

2. The easily installable irregular toothed pad according to claim 1, characterized in that: The external positioning component (3) includes four buckles (301), the inner wall of each buckle (301) is in contact with the outer surface of the metal outer ring (1), and a T-shaped telescopic block (302) is fixedly connected to the inner wall of each buckle (301), and each T-shaped telescopic block (302) is slidably connected inside the metal outer ring (1).

3. The easily installable irregular toothed pad according to claim 1, characterized in that: The metal outer ring (1) has four through holes (4) on its front side, and each through hole (4) corresponds to a bolt hole on the flange.

4. The easily installable irregular toothed pad according to claim 1, characterized in that: The front and back sides of the metal outer ring (1) are fixedly connected with soft layers (5), and both soft layers (5) are made of modified polytetrafluoroethylene material.

5. The easily installable irregular toothed pad according to claim 2, characterized in that: The back of the arc-shaped clamping block (202) is fixedly connected to a telescopic rod (6), which is built into the inside of the compression spring (201).

6. The easily installable irregular toothed pad according to claim 4, characterized in that: The outer surface of the soft layer (5) is provided with a wavy toothed groove (7), and the outer surface of the buckle (301) is provided with anti-slip grooves (8) arranged at equal intervals.

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