Expansion type sealing rubber ring

Abstract

The utility model discloses an expansion type sealing rubber ring which comprises a supporting framework, the supporting framework is composed of a center supporting ring and side edge check rings, the two side edge check rings are arranged on the two side faces of the center supporting ring respectively, the side edge check rings and the center supporting ring are coaxially arranged, and the center supporting ring and the side edge check rings are coaxially arranged. An inner rubber ring clamping groove is formed in the inner side of the supporting framework, an outer rubber ring clamping groove is formed in the outer side of the supporting framework, and an inner rubber sealing ring is installed in the inner rubber ring clamping groove. The overall strength of the expansion type sealing rubber ring can be increased through the supporting framework, the supporting framework is composed of the center supporting ring and the side edge check rings, and the inner side of the supporting framework is provided with the inner rubber ring clamping groove used for installing the inner rubber sealing ring. The outer side of the supporting framework is provided with the outer rubber ring clamping groove used for installing the outer rubber sealing ring, so that the inner rubber sealing ring and the outer rubber sealing ring are not prone to being separated from the supporting framework, and later replacement is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing rings, in particular to an expansion type sealing rubber ring. Background Art

[0002] A rubber ring is a circular ring made of rubber. By connecting with different structures, it can achieve various effects such as sealing and dustproofing. A water-swelling rubber ring is made by putting rubber, water-absorbing resin and some additives into a rubber ring mold. It can absorb water, expand and retain water while maintaining the high elasticity and resistance to compression deformation of the rubber. Therefore, it is often used in drainage, tunnels and other places.

[0003] However, the strength of the water-expandable rubber rings currently on the market is relatively poor. The water-expandable rubber rings are not easy to maintain their shape after being damaged, resulting in the problem of inconvenient removal and replacement of the expansion rubber rings. Utility Model Content

[0004] The purpose of the utility model is to provide an expansion type sealing rubber ring to solve the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an expansion type sealing rubber ring, comprising a support frame, the support frame consisting of a central support ring and side retaining rings, a side retaining ring is provided on each side surface of the central support ring, the side retaining rings and the central support ring are coaxially arranged, an inner rubber ring slot is provided on the inner side of the support frame, an outer rubber ring slot is provided on the outer side of the support frame, an inner rubber sealing ring is installed in the inner rubber ring slot, and an outer rubber sealing ring is installed in the outer rubber ring slot.

[0006] Preferably, a plurality of inner protrusions are arranged at equal intervals on the inner surface of the central support ring, and a plurality of outer protrusions are arranged at equal intervals on the outer surface of the central support ring.

[0007] Preferably, a plurality of outer slots are formed at equal intervals on the outer side of the side retaining ring, and a plurality of inner slots are formed at equal intervals on the inner side of the side retaining ring.

[0008] Preferably, the thickness of the outer rubber ring slot is greater than the depth of the outer rubber ring slot, and the thickness of the inner rubber sealing ring is greater than the depth of the inner rubber ring slot.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows: the expandable sealing rubber ring of the present invention is composed of a support frame, an inner rubber sealing ring installed on the inner side of the support frame, and an outer rubber sealing ring installed on the outer side of the support frame. The support frame can increase the overall strength of the expandable sealing rubber ring, and at the same time, the support frame can also maintain the overall shape of the expandable sealing rubber ring unchanged. The support frame is composed of a central support ring and side retaining rings. The inner side of the support frame is provided with an inner rubber ring clamping groove for installing the inner rubber sealing ring, and the outer side of the support frame is provided with an outer rubber ring clamping groove for installing the outer rubber sealing ring. This method makes it difficult for the inner rubber sealing ring and the outer rubber sealing ring to separate from the support frame, thereby facilitating later replacement.

[0010] The inner surface of the central support ring is provided with multiple inner protrusions at equal intervals, and the outer surface of the central support ring is provided with multiple outer protrusions at equal intervals. The inner and outer protrusions can increase the connection strength between the inner and outer rubber sealing rings and the support frame, making it difficult for the inner and outer rubber sealing rings to rotate.

[0011] A plurality of outer card grooves are opened at equal intervals on the outer side of the side retaining ring, and a plurality of inner card grooves are opened at equal intervals on the inner side of the side retaining ring. When the inner rubber sealing ring and the outer rubber sealing ring swell when exposed to water, their sides will be stuck in the card grooves, thereby increasing the connection strength between the inner rubber sealing ring, the outer rubber sealing ring and the support frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0013] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0014] Figure 2 This is a three-dimensional structural diagram of the support frame of the utility model;

[0015] Figure 3 It is a schematic structural diagram of the overall cross section of the utility model;

[0016] Figure 4 It is a schematic structural diagram of the cross section of the support frame of the present utility model.

[0017] In the figure: 1. Support frame; 2. Outer rubber sealing ring; 3. Inner rubber sealing ring; 4. Center support ring; 5. Outer rubber ring slot; 6. Side retaining ring; 7. Inner rubber ring slot; 8. Outer slot; 9. Inner slot; 10. Outer protrusion; 11. Inner protrusion. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-4 In the embodiment of the utility model, an expansion type sealing rubber ring includes a support frame 1, which is composed of a central support ring 4 and a side retaining ring 6. A side retaining ring 6 is provided on each side of the central support ring 4. The side retaining ring 6 and the central support ring 4 are coaxially arranged. An inner rubber ring groove 7 is provided on the inner side of the support frame 1, and an outer rubber ring groove 5 is provided on the outer side of the support frame 1. An inner rubber sealing ring 3 is installed in the inner rubber ring groove 7, and an outer rubber sealing ring 2 is installed in the outer rubber ring groove 5. The thickness of the outer rubber ring groove 5 is greater than the depth of the outer rubber ring groove 5, and the thickness of the inner rubber sealing ring 3 is greater than the depth of the inner rubber ring groove 7.

[0020] A plurality of inner protrusions 11 are provided on the inner surface of the central support ring 4 at equal intervals, and a plurality of outer protrusions 10 are provided on the outer surface of the central support ring 4 at equal intervals.

[0021] A plurality of outer slots 8 are formed at equal intervals on the outer side of the side retaining ring 6 , and a plurality of inner slots 9 are formed at equal intervals on the inner side of the side retaining ring 6 .

[0022] The working principle of the utility model is as follows: the expandable sealing rubber ring of the utility model is composed of a support frame 1, an inner rubber sealing ring 3 installed on the inner side of the support frame 1, and an outer rubber sealing ring 2 installed on the outer side of the support frame 1. The support frame 1 can increase the overall strength of the expandable sealing rubber ring, and at the same time, the support frame 1 can also keep the overall shape of the expandable sealing rubber ring unchanged. The support frame 1 is composed of a central support ring 4 and a side retaining ring 6. The inner side of the support frame 1 is provided with an inner rubber ring groove 7 for installing the inner rubber sealing ring 3, and the outer side of the support frame 1 is provided with an outer rubber ring groove 5 for installing the outer rubber sealing ring 2. This method makes it difficult for the inner rubber sealing ring 3 and the outer rubber sealing ring 2 to be separated from the support frame 1, thereby facilitating later replacement;

[0023] The inner surface of the central support ring 4 is provided with a plurality of inner protrusions 11 at equal intervals, and the outer surface of the central support ring 4 is provided with a plurality of outer protrusions 10 at equal intervals. The inner protrusions 11 and the outer protrusions 10 can increase the connection strength between the inner rubber sealing ring 3, the outer rubber sealing ring 2 and the support frame 1, making it difficult for the inner rubber sealing ring 3 and the outer rubber sealing ring 2 to rotate;

[0024] A plurality of outer card grooves 8 are opened at equal intervals on the outer side of the side retaining ring 6, and a plurality of inner card grooves 9 are opened at equal intervals on the inner side of the side retaining ring 6. After the inner rubber sealing ring 3 and the outer rubber sealing ring 2 swell when exposed to water, their sides will be stuck in the card grooves, thereby increasing the connection strength between the inner rubber sealing ring 3, the outer rubber sealing ring 2 and the support frame 1.

[0025] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An expansion sealing rubber ring, characterized in that: The invention comprises a support frame (1), wherein the support frame (1) is composed of a central support ring (4) and side retaining rings (6), a side retaining ring (6) is provided on each side of the central support ring (4), and the side retaining rings (6) and the central support ring (4) are coaxially arranged, an inner rubber ring slot (7) is provided on the inner side of the support frame (1), an outer rubber ring slot (5) is provided on the outer side of the support frame (1), an inner rubber sealing ring (3) is installed in the inner rubber ring slot (7), and an outer rubber sealing ring (2) is installed in the outer rubber ring slot (5).

2. The inflatable sealing rubber ring according to claim 1, characterized in that: A plurality of inner protrusions (11) are arranged at equal intervals on the inner surface of the central support ring (4), and a plurality of outer protrusions (10) are arranged at equal intervals on the outer surface of the central support ring (4).

3. The inflatable sealing rubber ring according to claim 1, characterized in that: A plurality of outer slots (8) are provided at equal intervals on the outer side of the side retaining ring (6), and a plurality of inner slots (9) are provided at equal intervals on the inner side of the side retaining ring (6).

4. The inflatable sealing rubber ring according to claim 3, characterized in that: The thickness of the outer rubber ring slot (5) is greater than the depth of the outer rubber ring slot (5), and the thickness of the inner rubber sealing ring (3) is greater than the depth of the inner rubber ring slot (7).

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