Sealing combination connecting fitting

Abstract

The utility model relates to the technical field of mechanical parts, in particular to a sealing combination connecting fitting. According to the technical scheme, the sealing device comprises a cylindrical main body matching stop column made of metal materials, an integrally-formed cylindrical sealing stable connecting column is arranged at the lower end of the main body matching stop column, and the size of the main body matching stop column is larger than that of the sealing stable connecting column. A cylindrical center matching connecting hole penetrating through the lower end of the whole is formed in the upper end of the main body matching stop column, sealing safety matching columns which are integrally formed and evenly distributed in the circumferential direction are arranged on the lower end face of the sealing stable connecting column, and the outer sides of the sealing safety matching columns are of inclined face structures inclining towards the lower portions of the inner sides. The sealing structure has the advantages that the stability of a sealing position can be guaranteed to be better during overall installation, accurate and tight matched connection can be realized through pressing fit of different positions when the sealing structure is matched with a rubber sealing ring, and the sealing stability of a combined position is guaranteed to be better.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical components, in particular to a sealing combined connection fitting. Background Art

[0002] When connecting components in mechanical equipment, it is usually necessary to cooperate with sealing ring components for combined connection. When the existing sealing rings are combined with rubber sealing rings, the connection positions are prone to position deviation. Especially during the installation and cooperation of movable components, the sealing performance of the installation position will become worse with long-term use. During installation, the installation tightness of rubber sealing rings is relatively poor. If only rubber sealing rings are used, the strength of the sealing and mating position cannot be guaranteed. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a sealing combined connection fitting, which is used in combination with rubber sealing rings. During overall installation, it can ensure better stability of the sealing position. When cooperating with rubber sealing rings, it can achieve precise and tight fitting connection through pressing and fitting at different positions, ensuring better sealing stability at the combined position, avoiding the situation that rubber sealing rings are prone to deviation during use, making the safety and stability of the sealing position better, having stronger durability during use, and being more convenient for replacing rubber sealing rings during later maintenance, with higher position accuracy.

[0004] The technical solution of the utility model is as follows:

[0005] A sealing combined connection fitting, characterized in that: it includes a cylindrical main body made of metal material and a positioning post. The lower end of the main body with the positioning post is provided with an integrally formed cylindrical sealing and stable connection post. The size of the main body with the positioning post is larger than that of the sealing and stable connection post. The upper end of the main body with the positioning post is provided with a cylindrical central fitting connection hole penetrating through the lower position of the whole. The lower end surface of the sealing and stable connection post is provided with integrally formed and circumferentially uniformly distributed sealing and safety fitting posts. The outer side of the sealing and safety fitting posts is an inclined surface structure inclined downward to the inner side. The inclined surface structure is provided with integrally formed spherical sealing and anti-loosening fitting bosses. A sealing and fastening limit groove is formed between adjacent two sealing and safety fitting posts. The width of the inner side position of the sealing and fastening limit groove is smaller than that of the outer side position.

[0006] Further, the main body with the positioning post is of an inverted conical structure.

[0007] Further, the sealing and anti-loosening fitting boss is located at the central position of the inclined surface structure.

[0008] Further, the inner and outer widths of the sealed safety mating post are the same as the inner and outer thicknesses of the sealed stable connection post.

[0009] Further, the projection of the sealed anti-loosening mating boss in the up and down direction does not exceed the area of the projection of the sealed stable connection post in the up and down direction.

[0010] Advantages of the present utility model:

[0011] When the present utility model is in use, it is combined with a rubber-like sealing ring. During the overall installation, the stability of the sealed position can be better guaranteed. When cooperating with the rubber-like sealing ring, precise and tight fitting connection can be achieved through the pressing fit at different positions, ensuring better sealing stability at the combined position, avoiding the situation that the rubber-like sealing ring is prone to shift during use, making the safety and stability of the sealed position better, having stronger durability during use, and being more convenient for replacing the rubber sealing ring during later maintenance, with higher position accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0013] Figure 2 is a front schematic diagram of the present utility model;

[0014] Figure 3 is a left schematic diagram of the present utility model;

[0015] Figure 4 is a right schematic diagram of the present utility model;

[0016] Figure 5 is a top schematic diagram of the present utility model;

[0017] Figure 6 is a bottom schematic diagram of the present utility model;

[0018] Figure 7 is a three-dimensional structural schematic diagram of the present utility model in a second direction;

[0019] In the figure: 1, main body mating stop post; 2, sealed stable connection post; 3, central mating connection hole; 4, sealed safety mating post; 5, sealed anti-loosening mating boss; 6, sealed fastening limit groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Such as Figures 1 to 7As shown, a sealing combination connection accessory comprises a cylindrical main body matching stop column 1 made of metal material, the lower end of the main body matching stop column 1 is provided with an integral cylindrical sealing stable connection column 2, the size of the main body matching stop column 1 is larger than the size of the sealing stable connection column 2, and the lower end position can be used in combination with a rubber sealing ring during installation to ensure the connection sealing of the matching position. The upper end of the main body matching stop column 1 is provided with a cylindrical center matching connection hole 3 that runs through the lower end position of the whole, and the lower end surface of the sealing stable connection column 2 is provided with an integrally formed and circumferentially evenly distributed sealing safety matching column 4, which can improve the strength of the lower end position and provide a limiting effect on the matching of the rubber sealing ring. The outer side of the sealing safety matching column 4 is an inclined surface structure inclined to the inner side and downward, and the inclined surface structure is provided with an integrally formed spherical sealing anti-loosening matching boss 5, which can be pressed into the rubber sealing ring when tightening, and can be limited to match, ensuring better position stability during matching and more reliable overall tightness. A sealing and fastening limit groove 6 is formed between two adjacent sealing safety matching columns 4, which can be pressed and staggered with the rubber sealing ring in different directions, so that the overall matching stability is more guaranteed, and the matching strength of the tight position is also higher. The width of the inner side of the sealing and fastening limit groove 6 is smaller than the width of the outer side, and it is more convenient to operate when it is pressed and combined with the rubber sealing ring. It is used in combination with the rubber sealing ring during use, and can ensure better stability of the sealing position during overall installation. When it is matched with the rubber sealing ring, it can achieve accurate and tight matching connection through pressing and matching at different positions, which ensures better sealing stability of the combined position, avoids the situation that the rubber sealing ring is easy to deviate during use, makes the safety and stability of the sealing position better, and is more durable during use. It is also more convenient to replace the rubber sealing ring during later maintenance, and the position accuracy is higher.

[0021] Preferably, the main body and the stop column 1 are of an inverted cone structure. When mating, the fitting area at the outer side is larger and the strength of the mating connection can be further improved.

[0022] Preferably, the sealing and anti-loosening mating boss 5 is located at the center of the inclined structure, so that the bearing capacity of this position is stronger and the combination safety during mating is higher.

[0023] Preferably, the inner and outer widths of the sealing safety mating column 4 are the same as the inner and outer thicknesses of the sealing stable connecting column 2, so that the strength of the lower end mating position can be further improved, and the durability during assembly is stronger.

[0024] Preferably, the projection of the sealing and anti-loosening mating boss 5 in the up-down direction does not exceed the area of the projection of the sealing and stable connecting column 2 in the up-down direction, so that the overall structure occupies less space, and the mating safety during use is better, and the combination operation during assembly is relatively easy.

[0025] The above are the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements or replacements can be made, and these improvements or replacements should also be regarded as the protection scope of the present invention.

Claims

1. A sealed combined connection fitting, characterized in that: It includes a cylindrical main body mating stop post (1) made of a metallic material. A cylindrically shaped sealed and stably connected post (2) is integrally formed at the lower end of the main body mating stop post (1). The size of the main body mating stop post (1) is larger than that of the sealed and stably connected post (2). A cylindrically shaped central mating connection hole (3) that penetrates through the lower end position of the whole is provided at the upper end of the main body mating stop post (1). Sealed and safety mating posts (4) that are integrally formed and evenly distributed in a circumferential manner are provided on the lower end surface of the sealed and stably connected post (2). The outer side of the sealed and safety mating post (4) is an inclined surface structure that slopes downward and inward. A spherical sealing and anti-loosening mating boss (5) is integrally formed on the inclined surface structure. A sealed and tightened limiting groove (6) is formed between two adjacent sealed and safety mating posts (4). The width of the inner side position of the sealed and tightened limiting groove (6) is smaller than that of the outer side position.

2. The sealed combined connection fitting according to claim 1, wherein: The main body mating stop post (1) is of an inverted conical structure.

3. A sealed combined connection fitting according to claim 1, characterized in that: The sealing and anti-loosening mating boss (5) is located at the central position of the inclined surface structure.

4. A sealed combined connection fitting according to claim 1, characterized in that: The inner and outer widths of the sealed and safety mating post (4) are the same as the inner and outer thicknesses of the sealed and stably connected post (2).

5. A sealed combined connection fitting according to claim 1, characterized in that: The projection of the sealing and anti-loosening mating boss (5) in the up and down direction does not exceed the area of the projection of the sealed and stably connected post (2) in the up and down direction.

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