CN220337466U - Rubber sealing ring - Google Patents

Abstract

The utility model discloses a rubber sealing ring, which is technically characterized by comprising a rubber ring body, wherein the inner side surface of the rubber ring body is provided with lips which are symmetrical up and down and are bent outwards; a cavity is formed in the rubber ring body, a supporting ring with an X-shaped cross section is arranged on the inner wall of the cavity, a conical groove is formed on one side of the supporting ring, and a squeezing block in abutting fit with the conical groove is arranged on one side of the cavity; the support ring is also provided with support bars extending into the lips, an extrusion groove is formed between a pair of support bars, an insertion block which is in insertion fit with the extrusion groove is arranged in the cavity, and the insertion block is used for making the lips close to each other; through the setting of awl shape groove and supporting ring, can make the upper and lower surface of rubber circle body become, can let two lips to pipeline outer wall direction deformation produce the effort opposite with the medium pressure simultaneously to improve the sealing washer and receive the pressure of medium and deformation produce the gap, finally lead to revealing the emergence.

Description

A rubber sealing ring

Technical field

The invention relates to the technical field of seals, and in particular to a rubber sealing ring.

Background technique

The rubber sealing ring is a seal that can be installed between two pipes to prevent water leakage in the gap between the pipes. The rubber sealing ring is divided into O-type sealing ring, Y-type sealing ring, and V-type seal according to the installation occasion. Rings, etc., the use of O-type sealing rings is more common; the existing rubber sealing rings generally have a fixed shape and rely only on their own elasticity to seal the joints of the pipelines. However, when the medium in the pipeline is in a high-pressure state, the connection from the pipeline The high-pressure medium leaking from the sealing ring will cause the rubber sealing ring to deform, so that it cannot fit closely with the pipe connection, and ultimately it is easy to cause the medium to leak from the gap between the sealing ring and the pipe; therefore, a rubber sealing ring that can be subjected to high pressure and can also be connected to the pipe is needed. Tightly fitting rubber seal.

Contents of the invention

In order to solve the above problems, the present invention provides a rubber sealing ring that can tightly press the lip of the rubber sealing ring to the inner wall of the pipeline when the inner wall of the rubber sealing ring is subjected to high pressure to avoid medium leakage, thereby improving the sealing effect.

In order to achieve the above object, the present invention adopts a technical solution: a rubber sealing ring, including a rubber ring body, characterized in that the inner side of the rubber ring body is provided with a lip that is symmetrical up and down and curved outward; the rubber ring A cavity is provided in the body. The inner wall of the cavity is provided with a support ring with an A matching extrusion block; the support ring is also provided with a support bar extending into the lip, an extrusion groove is formed between a pair of support bars, and the cavity is provided with a support bar that is plugged into the extrusion groove. Insert block for bringing a pair of lips closer to each other.

The utility model is further configured such that the inner side of the rubber ring body is provided with a pressure surface integrated with the lip, the pressure surface is arranged in a V shape and a sealing block that fits the pipe is provided on the pressure surface. .

The utility model is further configured such that a pair of ring bars arranged at intervals are provided in the extrusion groove, and the plug-in block is provided with a slot for inserting and mating with the ring bars.

The utility model is further configured such that an opening connected to the cavity is provided inside the rubber ring body, and the pressure surface is fixed at the opening.

The utility model is further configured such that the rubber ring body is polytetrafluoroethylene or polychlorotrifluoroethylene.

To sum up, the beneficial effects of the present invention are:

Compared with the prior art, in this application, the tapered groove on the support block is in contact with the extrusion block, so that the support block can be deformed and expanded in the up and down direction, thereby generating extrusion force on the rubber ring in the up and down direction. This allows the upper and lower sides of the sealing ring body to be in close contact with the upper and lower sides of the groove at the pipe connection, thereby improving the sealing effect; and the upper and lower lips are arranged to fit together with the outer wall of the pipe, and the lips act under their own elasticity The lower part will offset the outer wall of the pipe, thereby ensuring the sealing effect; when subjected to high pressure, the support strip will drive the lip to squeeze inward, thus avoiding the deformation and leakage of the rubber ring caused by high pressure, and further improving the sealing effect.

Description of the drawings

Figure 1 is a three-dimensional structural view of this embodiment.

Figure 2 is a cross-sectional structural diagram of this embodiment.

Reference signs: 1-rubber ring body; 2-lip; 3-cavity; 4-support ring; 41-tapered groove; 42-support bar; 43-extrusion groove; 5-extrusion block; 6- Insert block; 7-pressure surface; 8-ring bar; 9-slot.

Detailed ways

The present invention will be further described in detail below with reference to the accompanying drawings.

As shown in Figures 1-2, this embodiment discloses a rubber sealing ring, which includes a rubber ring body 1. The inner side of the rubber ring body 1 is provided with an upwardly and downwardly symmetrical and outwardly curved lip 2; the rubber ring The body 1 is provided with a cavity 3 communicating with the lip 2. The inner wall of the cavity 3 is provided with a support ring 4 with an X-shaped cross section. A tapered groove 41 is formed on one side of the support ring 4. An extrusion block 5 is provided on one side of the cavity 3 to abut and cooperate with the tapered groove 41; the support ring 4 is also provided with a support bar 42 extending into the lip 2, and a pair of support bars 42 is formed between Extrusion groove 43, the cavity 3 is provided with an insert block 6 that is plug-fitted with the extrusion groove 43, and the extrusion groove 43 is provided with a pair of ring bars 8 spaced up and down. An insertion slot 9 is provided for plugging and mating with the ring bar 8. The insertion block 6 is used to bring a pair of lips 2 close to each other.

As shown in Figure 2, during the use of the sealing ring, its lip will always be closely attached to the outer wall of the pipe, and the rubber sealing ring body will also be in the groove at the connection of the two pipes, which will affect the rubber ring body. The upper and lower sides are tightly fitted; among them, the lip will deform and expand in the upward and downward directions due to the extrusion force of the pipe. Then during the sealing process, the lip will always fit with the inner wall of the pipe under the action of elastic force. This can improve the sealing effect under daily conditions;

When the high-pressure medium in the pipeline leaks, it will first produce an outward squeezing force on the pressure-receiving surface 7, so that the insert block 6 exerts an inward force on the support ring 4. Under the action of the force, the support ring 4 It will move in the direction of the extrusion block 5, and the extrusion block 5 will abut with the tapered groove 41 on the support ring 4, causing the tapered groove to expand and deform outwards, thereby generating a squeezing force on the rubber ring body 1, so that The upper and lower sides of the rubber ring body 1 squeeze the pipe, which enhances the sealing effect; at the same time, after the slot on the insert block is plugged into the two ring bars, the ring bars can shrink and deform toward the middle, so that together with the pressure surface , driving the two upper and lower support bars 42 located in the lip to deform and squeeze in the middle, thereby causing the two lips to deform and bend in the middle, and finally generate a squeezing force between the lip and the outer wall of the pipe, thereby buffering and counteracting the pressure of the medium , further strengthens the sealing effect of the sealing rubber ring and avoids leakage of media.

Through the structure of the support block, when the rubber sealing ring is subjected to the force of the high-pressure medium, the upper and lower sides of the rubber sealing ring body 1 and the surface that fits the outer wall of the pipe circumference can be deformed, thereby improving the effect of the rubber ring body on the pipe. force, thus buffering and counteracting the pressure of the medium, avoiding the leakage of the medium caused by high-pressure deformation at the joint between the rubber ring and the pipe, and improving the sealing effect of the rubber sealing ring.

The present invention is further configured that the inner surface of the rubber ring body 1 is provided with a pressure surface 7 integrated with the lip 2, and the pressure surface 7 is arranged in a V shape, and the V-shaped pressure surface 7 can press The force of the medium is guided to the middle of the pressure surface, thereby reducing the pressure on the upper and lower lips; at the same time, the force can be more concentrated, thereby better exerting force on the support ring 4.

The present invention is further provided that an opening connected to the cavity 3 is provided on the inside of the rubber ring body 1, and the pressure surface 7 is fixed at the opening; an opening is provided on the side of the rubber ring body 1 located at the lip, and the opening is The arrangement can facilitate the molding of the rubber ring body and the installation and placement of the support ring and other structures. Then the pressure surface 7 can be fixedly connected to the rubber ring body 1 through hot melting, and at the same time seal the cavity.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present invention shall be included in the protection scope of the present invention. within.

Claims (5)

1. A rubber sealing ring, comprising a rubber ring body (1), characterized in that the inner side of the rubber ring body (1) is provided with a lip (2) that is symmetrical up and down and bent outwards; the rubber ring body (1) is provided with a cavity (3). The inner wall of the cavity (3) is provided with a support ring (4) with an X-shaped cross section. A tapered groove (4) is formed on one side of the support ring (4). 41), one side of the cavity (3) is provided with an extrusion block (5) that abuts and matches the tapered groove (41); the support ring (4) is also provided with an extrusion block (5) extending to the lip (2) There are support bars (42) inside, and an extrusion groove (43) is formed between a pair of support bars (42). An insert block (43) is provided in the cavity (3) to plug-fit with the extrusion groove (43). 6), the insert block (6) is used to bring a pair of lips (2) close to each other. 2. The rubber sealing ring according to claim 1, characterized in that the inner surface of the rubber ring body (1) is provided with a pressure-receiving surface (7) integrally arranged with the lip (2), and the pressure-receiving surface (7) is arranged in a V shape and a sealing block that fits the pipe is provided on the pressure surface (7). 3. The rubber sealing ring according to claim 1, characterized in that a pair of spaced ring bars (8) are provided in the extrusion groove (43), and the insert block (6) is provided with a pair of ring bars (8). The strip (8) plugs into the slot (9). 4. The rubber sealing ring according to claim 2, characterized in that an opening communicating with the cavity (3) is provided on the inside of the rubber ring body (1), and the pressure surface (7) is fixed at the opening. . 5. The rubber sealing ring according to claim 1, characterized in that the rubber ring body (1) is polytetrafluoroethylene or polychlorotrifluoroethylene.