Anti-falling rubber sealing element

Abstract

The utility model relates to the technical field of sealing elements, in particular to an anti-falling rubber sealing element. According to the technical scheme, the sealing element comprises a sealing element body composed of an inner ring and an outer ring, the inner ring is sleeved with the outer ring, an annular opening is formed in the middle of the inner ring, an adjusting groove set is arranged in the annular opening, the adjusting groove set is formed by a plurality of reset grooves and supporting grooves, and the reset grooves and the supporting grooves are continuously formed in the wall of the inner ring. The reset grooves and the supporting grooves are alternately arranged and distributed at equal intervals, supporting radian blocks with the same radian as the reset grooves and the supporting grooves are arranged on the inner circle of the outer ring, and the number of the supporting radian blocks is the same as that of the reset grooves and the supporting grooves. According to the scheme, the sealing element body is formed by the inner ring and the outer ring, the supporting radian blocks move into the reset grooves or the supporting grooves by rotating the outer ring so as to achieve the supporting effect, an existing spring supporting mode is changed, the overall sealing performance of the sealing element cannot be reduced, operation is convenient, and the damage rate is low.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing elements, in particular to an anti-falling rubber sealing element. Background Art

[0002] The seal is a material or part that prevents fluid or solid particles from leaking from adjacent joint surfaces and prevents external impurities such as dust and moisture from invading the internal parts of the machine equipment. When solving the problem of the existing seals to prevent them from falling off, the internal part of the seal is often modified by adding elastic support parts such as springs to fix it. For example, in the document with publication number CN219692249U, the telescopic part and the spring are contracted, and the reset tension of the spring makes the block fit tightly on the inner wall of the cylinder cover, thereby preventing the seal body from falling off from the inside of the cylinder cover. However, such a setting will destroy the sealing performance of the seal and increase the damage rate of the seal. Utility Model Content

[0003] The utility model aims to provide an anti-falling rubber sealing component in view of the problems existing in the background technology.

[0004] The technical solution of the utility model is as follows: an anti-falling rubber seal, comprising a seal body consisting of an inner ring and an outer ring, the outer ring being sleeved on the outside of the inner ring, the middle portion of the inner ring being an annular opening, an adjustment groove group being arranged in the annular opening, the adjustment groove group being formed by a plurality of reset grooves and support grooves continuously opened on the inner ring wall, the reset grooves and the support grooves being alternately arranged and equidistantly distributed, the inner ring of the outer ring being provided with support curvature blocks having the same curvature as the reset groove and the support groove, and the three having the same number, and the depth of the reset groove being greater than the depth of the support groove.

[0005] Preferably, the shape and size of the reset groove are the same as those of the supporting arc block, and the upper and lower parts of the outer ring are both located in the annular opening and are arranged to fit the upper and lower parts of the annular opening.

[0006] Preferably, the adjustment groove group further includes a connecting portion between the adjacent reset grooves and the supporting grooves, and the chamfered portion of the connecting portion is configured as an arc portion.

[0007] Preferably, steel rings are provided inside the inner ring and the outer ring, and the two steel rings are respectively arranged near the adjustment groove group and the supporting curvature block.

[0008] Preferably, the inner ring of the inner ring and the outer ring of the outer ring are both provided with anti-slip grooves.

[0009] Compared with the existing technology, the beneficial effects of the utility model are: this scheme forms the setting of the sealing body by an inner ring and an outer ring, and the supporting arc block is moved into the reset groove or the supporting groove by rotating the outer ring to achieve the supporting effect, which changes the existing method of supporting by springs, will not reduce the overall sealing of the seal, and is easy to operate and has a low damage rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a structural schematic diagram of an anti-falling rubber seal proposed by the utility model;

[0011] Figure 2 This is a schematic diagram of the disassembled structure of an anti-falling rubber seal proposed by the utility model;

[0012] Figure 3 for Figure 2 A schematic cross-sectional structure diagram of ;

[0013] Figure 4 The utility model provides a structural schematic diagram of an anti-falling rubber seal adjusting groove group.

[0014] Figure numerals: 1, inner ring; 2, outer ring; 3, annular opening; 4, adjustment groove group; 5, support arc block; 6, steel ring; 41, reset groove; 42, support groove; 43, connecting part; 44, arc part. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0016] See attached Figure 1-3 , an anti-falling rubber seal, including a seal body consisting of an inner ring 1 and an outer ring 2, the outer ring 2 is sleeved on the outside of the inner ring 1, the middle part of the inner ring 1 is an annular opening 3, an adjusting groove group 4 is arranged in the annular opening 3, the adjusting groove group 4 is formed by a plurality of reset grooves 41 and support grooves 42 continuously opened on the wall of the inner ring 1, the reset grooves 41 and the support grooves 42 are alternately arranged and equidistantly distributed, the inner ring of the outer ring 2 is provided with a support arc block 5 with the same arc as the reset groove 41 and the support groove 42, and the number of the three is the same, the depth of the reset groove 41 is greater than the depth of the support groove 42, such as Figure 2 and 3As shown, the inner ring 1 and the outer ring 2 form a setting of the sealing body, and the supporting radian block 5 is moved into the reset groove 41 or the supporting groove 42 by rotating the outer ring 2. Because the depth of the reset groove 41 is greater than the depth of the supporting groove 42, when the supporting radian block 5 enters the reset groove 41, the supporting radian block 5 will be completely entered, and the overall cross-sectional diameter of the sealing body will be smaller. When the moving supporting radian block 5 enters the supporting groove 42, the outer ring 2 will be stretched open, and the overall cross-sectional diameter of the sealing body will be larger. At this time, the larger diameter will be supported inside the sealing body, thereby achieving an anti-falling effect. In addition, the present scheme changes the existing spring support method through this setting, does not reduce the overall sealing of the seal, is easy to operate, and has a low damage rate.

[0017] In this embodiment, it should be noted that the shape and size of the reset groove 41 are the same as the shape and size of the support curvature block 5, and the upper and lower parts of the outer ring 2 are both located in the annular opening 3 and are arranged to fit the upper and lower parts of the annular opening 3, thereby ensuring the sealing between the outer ring 2 and the inner ring 1. The reset groove 41 and the support curvature block 5 are set to the same size in order to maximize the drop between the support curvature block 5 moving from the reset groove 41 to the support groove 42, thereby maximizing the degree of expansion of the outer ring 2.

[0018] refer to Figure 3 and 4 It should be further explained that a steel ring 6 is provided inside the inner ring 1 and the outer ring 2. The two steel rings 6 are respectively provided near the adjusting groove group 4 and the supporting arc block 5. Figure 3 As shown, the steel ring 6 is added to make the inner ring 1 and the outer ring 2 less likely to deform when subjected to force, so that the supporting arc block 5 has a certain supporting force when in use. The adjusting groove group 4 also includes a connecting portion 43 between the reset groove 41 and the supporting groove 42, and the chamfer of the connecting portion 43 is set as an arc portion 44, as shown in FIG. Figure 4 As shown, such a configuration can reduce the friction force when the supporting radian block 5 moves from the reset groove 41 to the supporting groove 42 .

[0019] Furthermore, the inner ring of the inner ring 1 and the outer ring of the outer ring 2 are both provided with anti-slip grooves. When the sealing body is installed in a pipeline, the outer ring of the outer ring 2 is tightly attached to the pipeline wall. By rotating the outer ring 2 to move the support radian block 5, the support radian block 5 is moved from the reset groove 41 to the support groove 42. Then, the outer ring 2 will be stretched outward in the pipeline, so that the outer ring 2 is fixed. When it is necessary to connect another pipeline, it can be inserted into the inner ring 1.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0022] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An anti-falling rubber seal, characterized in that: The invention comprises a sealing body composed of an inner ring (1) and an outer ring (2), wherein the outer ring (2) is sleeved on the outside of the inner ring (1), the middle part of the inner ring (1) is an annular opening (3), an adjusting groove group (4) is arranged in the annular opening (3), the adjusting groove group (4) is formed by a plurality of reset grooves (41) and support grooves (42) continuously opened on the wall of the inner ring (1), the reset grooves (41) and the support grooves (42) are arranged alternately and are distributed in an equidistant manner, the inner ring of the outer ring (2) is provided with support arc blocks (5) having the same arc as the reset grooves (41) and the support grooves (42), and the three are of the same number, and the depth of the reset groove (41) is greater than the depth of the support groove (42).

2. The anti-falling rubber seal according to claim 1, characterized in that: The shape and size of the reset groove (41) are the same as those of the supporting arc block (5); the upper and lower parts of the outer ring (2) are both located in the annular opening (3) and are arranged to fit the upper and lower parts of the annular opening (3).

3. The anti-falling rubber seal according to claim 1, characterized in that: The adjustment groove group (4) further comprises a connecting portion (43) between the adjacent reset grooves (41) and the support grooves (42), and the chamfered portion of the connecting portion (43) is arranged as an arc portion (44).

4. The anti-falling rubber seal according to claim 1, characterized in that: Steel rings (6) are provided inside the inner ring (1) and the outer ring (2), and the two steel rings (6) are respectively provided near the adjustment groove group (4) and the support radian block (5).

5. The anti-falling rubber seal according to claim 1, characterized in that: The inner ring of the inner ring (1) and the outer ring of the outer ring (2) are both provided with anti-slip grooves.

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