Splicing combined sealing washer

Abstract

A spliced combined sealing gasket comprises an upper ring body and a lower ring body, the upper ring body and the lower ring body are annular bodies which are the same in radial size and coaxially correspond to each other, the upper ring body is arranged above the lower ring body, the bottom face of the upper ring body is attached to the top face of the lower ring body, and the upper ring body and the lower ring body are fixedly connected to form the integral annular sealing gasket. Wherein the upper ring body is a main body part made of an elastic material, and the lower ring body is a reinforcing part made of a hard material. The utility model has the advantages of higher strength, better durability, stronger aging resistance, higher stability, longer service life, more convenience and quickness in installation and lower maintenance cost.

Description

Technical Field

[0001] The utility model belongs to the technical field of sealing, and particularly relates to a combined sealing gasket for splicing and installation. Background Art

[0002] A sealing gasket, also known as a sealing ring, is an elastic ring-shaped part used to seal between two adjacent components in a device. Its main function is to prevent fluids or substances such as liquids, gases, and dust from leaking or penetrating into the device through the gap between the two components, and to prevent the fluids or substances inside the device from leaking into the external environment. It mainly plays roles in sealing, dust prevention, waterproofing, pressure bearing, buffering, and extending the service life of the device. It is widely used in various fields, such as mechanical manufacturing, chemical industry, automotive and other industries.

[0003] Taking the field of pipeline connection as an example, a sealing gasket is a commonly used sealing element to ensure the sealing performance at the pipeline connection. Traditional sealing gaskets are often made of rubber materials and formed into an integral structure through bonding or vulcanization. However, there are some problems in the installation process, for example: for upper-thick-and-lower-thin pipe joints with external threads and various pipelines fixed by upper and lower bolts, it is difficult to install a suitable sealing gasket, and the sealing stability is poor after installation. This makes the connection and installation of such pipelines not only difficult, but also their safety and reliability are affected to a certain extent, and at the same time, the maintenance cost is relatively high. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a more stable and easily installable combined sealing ring to solve the technical problems of difficult installation, low stability, poor safety, and high maintenance cost of the sealing gaskets of some existing pipelines.

[0005] To achieve the above purpose, the specific technical solution of the utility model is as follows:

[0006] A splicing combined sealing gasket includes an upper ring body and a lower ring body, which are annular bodies with the same radial dimension and coaxial correspondence. The upper ring body is arranged above the lower ring body, and its bottom surface is in mutual contact with the top surface of the lower ring body. The two are fixedly connected to form an integral annular sealing gasket. The upper ring body is a main body part made of an elastic material, and the lower ring body is a reinforcing part made of a hard material.

[0007] Further, a ring convex fixedly connected to the upper ring body is provided on the bottom surface of the upper ring body. The ring convex is an annular protrusion coaxial with the upper ring body, and its top surface is connected to the bottom surface of the upper ring body. A ring concave corresponding to the ring convex is provided on the top surface of the lower ring body. The ring concave is an annular groove coaxial with the lower ring body, and the ring convex is embedded in the ring concave.

[0008] Further, the lower ring body is formed by splicing two corresponding arc-shaped ring pieces. The two ring pieces are divided into a first ring piece and a second ring piece. Both ends of the first ring piece are provided with outwardly extending bosses, and both ends of the second ring piece are provided with inner grooves corresponding to the bosses of the first ring piece. The first ring piece and the second ring piece are spliced together through the corresponding bosses and inner grooves to form the lower ring body, and the joint between the two ring pieces is covered by the upper ring body above it.

[0009] Further, the lower ring body is formed by splicing multiple arc-shaped ring pieces. The multiple ring pieces are arranged in sequence around the circumferential direction and are joined end to end to form a closed annular lower ring body. Both ends of the ring piece are respectively provided with corresponding bosses and inner grooves, and adjacent ring pieces are spliced together through the corresponding bosses and inner grooves in a tenon and mortise manner.

[0010] Further, a downward arc-shaped groove, namely an arc recess, is provided on the top surface of the ring piece along its arc. The two arc recesses of the corresponding two ring pieces are assembled into a corresponding ring recess.

[0011] Further, the upper ring body is an annular rubber gasket made of rubber, and the lower ring body is a metal ring made of metal material. The upper ring body and the lower ring body are bonded together by vulcanization.

[0012] The spliced combined sealing gasket of the present utility model combines an elastic main body part and a rigid reinforcing part. On the premise of ensuring the sealing performance of the overall sealing gasket, it has higher strength, better durability, stronger anti-aging property, higher stability, longer service life. It adopts a tenon and mortise structure for splicing and installation, which improves the convenience of installing the sealing gasket. After installation, it is more firm, the probability of falling off is lower, the installation and maintenance cost is lower, and the economic benefit is better. Description of the Drawings

[0013] Figure 1 is a schematic structural diagram of Embodiment 1 of the present utility model;

[0014] Figure 2 is a top view of Embodiment 1 of the present utility model;

[0015] Figure 3 is of the present utility model Figure 2 a cross-sectional view taken along the A-A direction;

[0016] Figure 4 is a top view of the lower ring body of the present utility model;

[0017] Figure 5 is a bottom view of Embodiment 2 of the present utility model;

[0018] Explanation of the reference numerals in the drawings: 1. Upper ring body; 11. Ring convex; 2. Lower ring body; 21. Ring recess; 3. Ring piece; 31. Boss; 32. Inner groove; 33. Arc recess; 34. First ring piece; 35. Second ring piece. Detailed implementation mode

[0019] In order to better understand the purpose, structure and function of the present utility model, the following further describes in detail a splicing and combined sealing gasket of the present utility model with reference to the accompanying drawings.

[0020] Embodiment 1

[0021] As Figure 1 shown, the splicing and combined sealing gasket of the present utility model includes an upper ring body 1 and a lower ring body 2, which are annular bodies with the same inner and outer diameter dimensions and are coaxially corresponding. Among them, the upper ring body 1 is arranged above the lower ring body 2, and its bottom surface is mutually attached to the top surface of the lower ring body 2. The upper ring body 1 and the lower ring body 2 are fixedly connected to form an integral annular sealing gasket. In this embodiment, the cross-section of the sealing gasket formed by the upper ring body 1 and the lower ring body 2 is circular. The upper ring body 1 is the main body part made of an elastic material, and the lower ring body 2 is the reinforcing part made of a hard material. In this embodiment, the upper ring body 1 is an annular rubber gasket made of rubber, and the lower ring body 2 is a metal ring made of a metal material. The lower ring body 2 provides rigid support for the upper ring body 1, and the two are bonded together by vulcanization. Using this bonding method can make the sealing gasket have better toughness, be more durable, and have a longer service life.

[0022] A ring convex 11 is provided on the bottom surface of the upper ring body 1. The ring convex 11 is an annular protrusion coaxial with the upper ring body 1, and its top surface is connected to the bottom surface of the upper ring body 1, and the two are integrally formed. In this embodiment, the cross-section of the ring convex 11 is rectangular, and it is arranged in the middle of the bottom surface of the upper ring body 1. The difference between the outer circle of the ring convex 11 and the outer circle of the upper ring body 1 is equal to the difference between the inner circle of the ring convex 11 and the inner circle of the upper ring body 1. A ring concave 21 corresponding to the ring convex 11 is provided on the top surface of the lower ring body 2. The ring concave 21 is an annular groove coaxial with the lower ring body 2. When the upper ring body 1 and the lower ring body 2 are correspondingly installed, first embed the ring convex 11 into the ring concave 21 to make the two spliced together, and then bond the two together to make the connection between the two more firm.

[0023] The lower ring body 2 is formed by splicing two corresponding arc-shaped ring pieces 3. The lower ring body 2 is divided into two corresponding left and right ring pieces 3 along its midline. Both ring pieces 3 are installed below the upper ring body 1 on the corresponding side. During installation, the two ends of them are spliced together by the mortise and tenon method. In this embodiment, the two ring pieces 3 are the first ring piece 34 and the second ring piece 35 respectively. Both ends of the first ring piece 34 are provided with outwardly extending bosses 31, and both ends of the second ring piece 35 are provided with inner grooves 32 corresponding to the bosses 31 of the first ring piece 34. In this embodiment, the bottom surfaces of both ends of the first ring piece 34 extend outward along its curved arc to form bosses 31 with a T-shaped cross-section, and the bottom surfaces of both ends of the second ring piece 35 are recessed upward to form T-shaped inner grooves 32 corresponding to the T-shaped bosses 31. The first ring piece 34 and the second ring piece 35 can be spliced together by the corresponding T-shaped bosses 31 and T-shaped inner grooves 32 using the mortise and tenon technique. When the two are spliced together to form the lower ring body 2, the joint between the two ring pieces 3 is covered by the upper ring body 1 above it, ensuring the sealing performance of the sealing gasket.

[0024] An arc-shaped recess 33 is provided on the top surface of the ring piece 3. The arc-shaped recess 33 is located at the arc midline of the top surface of the ring piece 3 and is an arc-shaped lower groove formed by the middle part of the top surface of the ring piece 3 extending downward along its arc. When two corresponding ring pieces 3 are spliced into the lower ring body 2, the two corresponding arc-shaped recesses 33 are spliced into a corresponding ring-shaped recess 21. The two corresponding ring pieces 3 are first installed on the corresponding side of the ring convex 11 of the upper ring body 1 through the arc-shaped recess 33, and then the two are adhered together by vulcanization technology. In this embodiment, the hot pressing method is used to adhere the two seamlessly into a whole. In this way, the overall assembly of the entire sealing gasket is completed and can be put into use. Using vulcanization technology to adhere the ring piece 3 to the upper ring body 1 can make the connection between the two stronger, and further make the overall tolerance of the sealing gasket stronger and the strength higher.

[0025] During use, taking the pipeline fixed with upper and lower bolts as an example, first fold the sealing gasket towards the upper ring body 1. At this time, the two corresponding ring pieces 3 are in an unspliced state. Then put the sealing gasket on the required pipeline joint, and splice the bosses 31 and inner grooves 32 at both ends of the two ring pieces 3 using the mortise and tenon technique. At this time, clamp the sealing gasket with the upper and lower bolts. While confirming its sealing performance, it can also prevent it from falling off, and the installation of the sealing gasket at the pipeline joint is completed.

[0026] The splicing and combined sealing gasket of the utility model combines a rubber gasket and a metal ring to form an integral sealing gasket. The rubber gasket is the main part and the metal ring is the reinforcing part. This composite structure not only improves the strength and durability of the sealing gasket, but also enhances its anti-aging property and stability. The corrosion resistance of the metal makes the service life of the sealing gasket longer. Moreover, the splicing and combined sealing gasket of the utility model adopts a mortise and tenon structure for splicing and installation, which makes the installation of the sealing gasket simple and convenient without affecting its sealing performance. After being clamped by upper and lower bolts, it can maintain the seal more firmly, reduce the probability of falling off during use, and lower the cost of installation and maintenance.

[0027] Embodiment 2

[0028] On the basis of Embodiment 1, further, the lower ring body 2 is composed of a plurality of ring pieces 3 spliced together. The plurality of arc-shaped ring pieces 3 are arranged in sequence around the circumferential direction and are joined end to end to form a closed annular lower ring body 2. The adjacent ring pieces 3 are spliced together in a mortise and tenon manner. Corresponding bosses 31 and inner grooves 32 are respectively provided at both ends of the ring piece 3. In this embodiment, the lower ring body 2 is composed of two ring pieces 3. The bottom surface of one end of the ring piece 3 extends outward along its curved arc to form a boss 31 with a T-shaped cross-section, and the bottom surface of the other end thereof is recessed upward to form a T-shaped inner groove 32 corresponding to the T-shaped boss 31. The two ring pieces 3 are joined end to end and are mortise and tenon fitted through the T-shaped bosses 31 and T-shaped inner grooves 32 at both ends thereof to form an annular lower ring body 2. Such a design can make the lower ring body 2 have better balance and better tolerance.

[0029] It can be understood that the utility model is described through some embodiments. Those skilled in the art know that without departing from the spirit and scope of the utility model, various changes or equivalent replacements can be made to these features and embodiments. In addition, under the teaching of the utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the utility model.

Claims

1. A spliced ​​combined sealing gasket, characterized in that: It comprises an upper ring body (1) and a lower ring body (2), both of which are annular bodies with the same radial dimensions and coaxially corresponding to each other, wherein the upper ring body (1) is arranged above the lower ring body (2), and its bottom surface is in contact with the top surface of the lower ring body (2), and the two are fixedly connected to form an integral annular sealing gasket, wherein the upper ring body (1) is a main body part made of elastic material, and the lower ring body (2) is a reinforcing part made of hard material.

2. The spliced ​​combined sealing gasket according to claim 1, characterized in that: The bottom surface of the upper ring body (1) is provided with an annular protrusion (11) fixedly connected thereto. The annular protrusion (11) is an annular protrusion coaxial with the upper ring body (1), and its top surface is connected to the bottom surface of the upper ring body (1). The top surface of the lower ring body (2) is provided with an annular recess (21) corresponding to the annular protrusion (11). The annular recess (21) is an annular groove coaxial with the lower ring body (2), and the annular protrusion (11) is embedded in the annular recess (21).

3. The spliced ​​combined sealing gasket according to claim 2, characterized in that: The lower ring body (2) is formed by splicing two corresponding arc-shaped ring pieces (3), the two ring pieces (3) are divided into a first ring piece (34) and a second ring piece (35), both ends of the first ring piece (34) are provided with outwardly extending bosses (31), both ends of the second ring piece (35) are provided with inner grooves (32) corresponding to the bosses (31) of the first ring piece (34), the first ring piece (34) and the second ring piece (35) are spliced ​​together through the corresponding bosses (31) and the inner grooves (32) to form the lower ring body (2), and the joint between the two ring pieces (3) is covered by the upper ring body (1) above them.

4. The spliced ​​combined sealing gasket according to claim 2, characterized in that: The lower ring body (2) is formed by splicing a plurality of arc-shaped ring pieces (3), wherein the plurality of ring pieces (3) are sequentially arranged around the circumference and connected end to end to form a closed annular lower ring body (2), and corresponding bosses (31) and inner grooves (32) are respectively provided at both ends of the ring piece (3), and adjacent ring pieces (3) are spliced ​​together by means of mortise and tenon joints via corresponding bosses (31) and inner grooves (32).

5. The spliced ​​combined sealing gasket according to any one of claims 3 to 4, characterized in that: The top surface of the ring piece (3) is provided with a lower groove extending downward along its arc line, which is an arc recess (33). The two arc recesses (33) of the two corresponding ring pieces (3) are assembled into a corresponding ring recess (21).

6. The spliced ​​combined sealing gasket according to claim 1, characterized in that: The upper ring body (1) is an annular rubber gasket made of rubber, and the lower ring body (2) is a metal ring made of metal material. The upper ring body (1) and the lower ring body (2) are bonded together by vulcanization.

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