Spiral rubber sealing ring

Abstract

The utility model discloses a spiral rubber sealing ring which comprises a main body, a placing opening is formed in the main body, the two ends of the placing opening are connected with sealing ends fixedly arranged at the two ends of the main body, and extension mechanisms used for enhancing sealing performance are arranged on the sides, away from each other, of the sealing ends. A spiral part is arranged on the outer side wall of the main body, the extension mechanism comprises a rubber extension part fixedly arranged at the sealing end, a plurality of sealing rings are arranged on the inner side face of the rubber extension part, and a positioning block is arranged on the outer side edge of the rubber extension part. And more sealing surfaces can be formed on the outer side of the sealing end, so that the sealing effect of the sealing ring at the end part is enhanced.

Description

Technical Field

[0001] The utility model relates to the field of spiral rubber sealing rings, in particular to a spiral rubber sealing ring. Background Art

[0002] Since the middle part of the spiral rubber sealing ring is a spiral structure, it is named a spiral rubber sealing ring. The spiral part in the middle of this sealing ring has a certain elastic structure and can be used to seal long shafts or other rod-shaped objects.

[0003] However, the existing spiral rubber sealing rings, such as the new spiral sealing ring with application number 201420579144.2 and authorization announcement number 204153139, are prone to rotational deviation of the spiral rubber sealing ring outside the long axis or rod-shaped object during use. In addition, since the spiral rubber sealing ring is made of rubber material as a whole, the elasticity of the spiral part of the spiral rubber sealing ring is easily weakened after long-term compression, and it is not conducive to the sealing of the two ends of the spiral rubber sealing ring.

[0004] The Chinese utility model patent with application number 201921054809.7 proposes a spiral rubber sealing ring that can solve the above problems, but there are still certain shortcomings: its upper and lower sealing ends are arranged in a plane, and only rely on extrusion force and the sealing convex ring for sealing, and the sealing effect is limited and needs to be further improved. Based on this, the utility model proposes a spiral rubber sealing ring with better sealing effect. Utility Model Content

[0005] In order to overcome the defects in the above-mentioned prior art, the utility model provides a spiral rubber sealing ring, by adding a rubber extension part and a sealing ring on the outside of the sealing end, so that several more sealing surfaces can be formed on the outside of the sealing end, thereby enhancing the sealing effect of the sealing ring at the end.

[0006] Technical Solution

[0007] A spiral rubber sealing ring comprises a main body, wherein a placement opening is arranged inside the main body, both ends of the placement opening are connected to sealing ends fixedly arranged at both ends of the main body, an extension mechanism for enhancing the sealing performance is arranged on the side of the sealing ends away from each other, and a spiral portion is arranged on the outer side wall of the main body.

[0008] Furthermore, the extension mechanism comprises a rubber extension portion fixedly arranged at the sealing end, and a plurality of sealing rings are arranged on the inner side surface of the rubber extension portion.

[0009] Furthermore, a positioning block is provided on the outer edge of the rubber extension portion.

[0010] Furthermore, a reinforcing gasket is arranged inside the sealing end.

[0011] Furthermore, a plurality of rubber rib rings are arranged on one side of the sealing end that is away from each other.

[0012] Furthermore, the spiral portion is spirally fixed to the outer side surface of the main body, an elastic steel wire is arranged inside the spiral portion, and an anti-tensile wire mesh located inside the spiral portion is arranged outside the elastic steel wire.

[0013] Furthermore, the sealing end is penetrated by a through hole communicating with the placement port.

[0014] Furthermore, the upper and lower ends of the elastic steel wire are fixedly connected to the reinforcing gasket respectively.

[0015] Beneficial Effects

[0016] Compared with the prior art, the utility model has the following beneficial effects: by adding a rubber extension part and a sealing ring on the outside of the sealing end, several more sealing surfaces can be formed on the outside of the sealing end, thereby enhancing the sealing effect of the sealing ring at the end. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a spiral rubber sealing ring of the utility model;

[0018] Figure 2 for Figure 1 Schematic diagram of the structure in the AA direction;

[0019] Figure 3 for Figure 1 The enlarged view of point B in the middle;

[0020] Figure 4 This is the internal structure of the spiral part.

[0021] Reference Numbers

[0022] Extension mechanism 900, main body 1, spiral part 2, placement port 3, sealing ring 4, sealing end 5, positioning block 6, through hole 7, reinforcing gasket 8, rubber extension part 9, elastic steel wire 10, elastic steel wire 11, rubber rib ring 12. DETAILED DESCRIPTION

[0023] In order to better illustrate the content of the utility model, the following is a description with reference to the accompanying drawings and implementation examples:

[0024] have Figure 1-Figure 4As shown, the utility model discloses a spiral rubber sealing ring, including a main body 1, wherein a placement opening 3 is arranged inside the main body 1, and both ends of the placement opening 3 are connected with sealing ends 5 fixedly arranged at both ends of the main body 1, and an extension mechanism 900 for enhancing the sealing performance is arranged on the side away from each other of the sealing ends 5, and a spiral portion 2 is arranged on the outer wall of the main body 1.

[0025] Furthermore, the extending mechanism 900 comprises a rubber extending portion 9 fixed to the sealing end 5 , and a plurality of sealing rings 4 are arranged on the inner side surface of the rubber extending portion 9 .

[0026] Furthermore, a positioning block 6 is provided on the outer edge of the rubber extension portion 9 .

[0027] Furthermore, a reinforcing gasket 8 is disposed inside the sealing end 5 .

[0028] Furthermore, a plurality of rubber rib rings 12 are provided on one side of the sealing end 5 which is away from each other.

[0029] Furthermore, the spiral portion 2 is spirally fixed to the outer side of the main body 1 , an elastic steel wire 11 is arranged inside the spiral portion 2 , and an anti-tensile wire mesh 10 located inside the spiral portion 2 is arranged outside the elastic steel wire 11 .

[0030] Furthermore, the sealing end 5 is penetrated by a through hole 7 which is in communication with the placement opening 3 .

[0031] Furthermore, the upper and lower ends of the elastic steel wire 11 are fixedly connected to the reinforcing gasket 8 respectively.

[0032] Specifically, when in use, the main body 1 is inserted into the long shaft or other rod-shaped object through the placement opening 8, so that the sealing end 5 is pressed into contact with the contact surface, and the space between the positioning blocks 6 can be stuck by the protrusions on the contact surface, thereby limiting the main body 1 and preventing rotation;

[0033] When the contact surface is pressed against the sealing end 5 and the rubber extension 9, the rubber extension 9 will first expand until the inner side of the rubber extension 9 is flattened and contacts the contact surface, and the rubber extension 9 will have an elastic force with a recovery tendency, so that the inner side of the rubber extension 9 presses the contact surface, so that the sealing ring 4 is pressed against the contact surface to form a sealing effect;

[0034] At the same time, the sealing end 5 will also be pressed against the contact surface, so that the rubber rib ring 12 and the contact surface form a sealing effect.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the technical solution of the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solution recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solution from the spirit and scope of the technical solution of each embodiment of the utility model.

Claims

1. A spiral rubber sealing ring, characterized in that: The invention comprises a main body (1), wherein a placement opening (3) is arranged inside the main body (1), and the two ends of the placement opening (3) are connected to sealing ends (5) fixedly arranged at the two ends of the main body (1), and an extension mechanism (900) for enhancing the sealing performance is arranged on the side of the sealing ends (5) away from each other, and a spiral portion (2) is arranged on the outer wall of the main body (1); The extension mechanism (900) comprises a rubber extension part (9) fixedly arranged on the sealing end (5), and a plurality of sealing rings (4) are arranged on the inner side surface of the rubber extension part (9); A positioning block (6) is provided on the outer edge of the rubber extension portion (9).

2. A spiral rubber sealing ring according to claim 1, characterized in that: A reinforcing gasket (8) is arranged inside the sealing end (5).

3. A spiral rubber sealing ring according to claim 2, characterized in that: A plurality of rubber rib rings (12) are arranged on one side of the sealing end (5) that is away from each other.

4. A spiral rubber sealing ring according to claim 3, characterized in that: The spiral portion (2) is spirally fixed on the outer side of the main body (1), an elastic steel wire (11) is arranged inside the spiral portion (2), and an anti-tensile wire mesh (10) located inside the spiral portion (2) is arranged outside the elastic steel wire (11).

5. A spiral rubber sealing ring according to claim 4, characterized in that: The sealing end (5) is penetrated by a through hole (7) which is in communication with the placement opening (3).

6. A spiral rubber sealing ring according to claim 5, characterized in that: The upper and lower ends of the elastic steel wire (11) are respectively fixedly connected to the reinforcing gasket (8).

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