Error-proof edge tearing groove structure

Abstract

The utility model discloses a mistake-proof edge tearing groove structure, and relates to the technical field of O-shaped ring molds, a small mistake-proof boss is canceled, a bulge is arranged in an edge tearing groove, the section of an edge tearing groove rubber part is reduced at the bulge, the edge tearing groove rubber part is more easily broken and damaged by freezing during subsequent freezing, and even if the edge tearing groove rubber part is not broken by freezing, the edge tearing groove rubber part is obviously different from a normal O-shaped ring, so that the service life of the O-shaped ring is prolonged. The material mixing risk is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of O-ring molds, in particular to an anti-error tearing edge groove structure. Background Art

[0002] O-rings are a basic sealing component. Due to the different specifications of O-rings, O-rings need to be strictly prevented from mixing. However, for products with special formulas that can be frozen to deflash, a tear groove structure has to be used. Because of the increase in tear groove rubber parts and the appearance of tear groove rubber parts is very similar to O-rings, a large number of tear groove rubber parts may be mixed with O-ring products of similar specifications during production, making them indistinguishable from the real thing.

[0003] In the prior art, in order to prevent the rubber part and the O-ring product in the tear edge groove from mixing, a small anti-mistake boss is provided on the rubber part of the tear edge groove, the structure is as follows: Figure 1 However, the small anti-error boss on the tear edge groove rubber part may be frozen off during freezing and deburring, making the tear edge groove rubber part closer to the appearance of the O-ring. There is still a situation where the tear edge groove rubber part is mixed with O-ring products of similar specifications. Therefore, the utility model proposes an anti-error tear edge groove structure. Utility Model Content

[0004] In order to solve the technical problems existing in the background technology, the utility model proposes an anti-wrong tearing edge groove structure.

[0005] The utility model proposes an anti-error tearing groove structure, including a mold, a cavity is formed on the mold, a tearing groove is formed on the mold, at least one protrusion is provided in the tearing groove, and the distance between the protrusion close to the cavity and the tearing groove close to the cavity is smaller than the distance between the tearing groove close to the cavity and the tearing groove away from the cavity.

[0006] Preferably, the number of the tearing edge grooves is set to two, wherein one of the tearing edge grooves is located on the inner side of the cavity, and the other of the tearing edge grooves is located on the outer side of the cavity.

[0007] Preferably, the number of the protrusions is set to four, and the four protrusions are equidistantly distributed in a ring shape.

[0008] Preferably, the cross-sectional shapes of the cavity and the tear edge groove are both set to be annular.

[0009] Preferably, the cross-sectional shape of the protrusion is set to be a polygon.

[0010] Preferably, both sides of the protrusion are chamfered.

[0011] In the utility model, the proposed anti-error tearing edge groove structure has the following beneficial technical effects:

[0012] By eliminating the small anti-error boss and setting a bulge in the tear edge groove, the bulge reduces the cross-section of the rubber part of the tear edge groove, which will be more easily broken by freezing during subsequent freezing. Even if it is not broken, it is obviously different from a normal O-ring, which greatly reduces the risk of mixing and does not affect the tearing function of the tear edge groove.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of a rubber part in a tear edge groove in the prior art;

[0015] Figure 2 It is a schematic diagram of the structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the rubber part in the tear edge groove produced by the utility model.

[0017] In the figure, 1, mold; 2, cavity; 3, tear edge groove; 4, protrusion. DETAILED DESCRIPTION

[0018] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0019] like Figure 2-Figure 3 The structure of an anti-error tearing groove is shown, comprising a mold 1, a cavity 2 is formed on the mold 1, and a tearing groove 3 is formed on the mold 1. The mold 1, the cavity 2 and the tearing groove 3 are all prior art. At least one protrusion 4 is provided in the tearing groove 3. The distance between the protrusion 4 close to the cavity 2 and the tearing groove 3 close to the cavity 2 is smaller than the distance between the tearing groove 3 close to the cavity 2 and the tearing groove 3 away from the cavity 2, so that the cross-section of the rubber part of the tearing groove 3 at the protrusion 4 is smaller than the cross-section at other places.

[0020] In an optional embodiment, the number of tearing grooves 3 is set to two, one of which is located on the inner side of the cavity 2 and the other is located on the outer side of the cavity 2. The tearing grooves 3 are opened on the mold 1 and are not connected to the cavity 2. The inner side of the cavity 2 and the outer side of the cavity 2 describe the positional relationship.

[0021] In an optional embodiment, the number of the protrusions 4 is set to four, and the four protrusions 4 are equidistantly distributed in a ring shape.

[0022] In an optional embodiment, the cross-sectional shapes of the cavity 2 and the tear edge groove 3 are both set to be annular.

[0023] In an optional embodiment, the cross-sectional shape of the protrusion 4 is set to be a polygon, such as a trapezoid, a rectangle, or a triangle.

[0024] In an optional embodiment, both sides of the protrusion 4 are chamfered.

[0025] By eliminating the small anti-error boss and setting the protrusion 4 in the tearing groove 3, the protrusion 4 reduces the cross-section of the rubber part of the tearing groove 3, which will be more easily broken by freezing during subsequent freezing. Even if it is not broken by freezing, it is obviously different from a normal O-ring, which greatly reduces the risk of mixing and does not affect the tearing function of the tearing groove 3.

[0026] The present application is applicable to the case where the rubber piece in the tear edge groove 3 is similar to the rubber piece in the cavity 2 .

[0027] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0028] 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", "axial", "radial", "circumferential" 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.

[0029] 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 at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] 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-error tearing edge groove structure, comprising a mold (1), a cavity (2) is formed on the mold (1), and a tearing edge groove (3) is formed on the mold (1), characterized in that: At least one protrusion (4) is provided in the tear edge groove (3), and the distance between the side of the protrusion (4) close to the mold cavity (2) and the side of the tear edge groove (3) close to the mold cavity (2) is smaller than the distance between the side of the tear edge groove (3) close to the mold cavity (2) and the side of the tear edge groove (3) away from the mold cavity (2).

2. The anti-error tearing edge groove structure according to claim 1, characterized in that: The number of the tearing edge grooves (3) is set to two, wherein one of the tearing edge grooves (3) is located on the inner side of the mold cavity (2), and the other of the tearing edge grooves (3) is located on the outer side of the mold cavity (2).

3. The anti-error tearing edge groove structure according to claim 1, characterized in that: The number of the protrusions (4) is set to four, and the four protrusions (4) are distributed equidistantly in a ring shape.

4. The anti-error tearing edge groove structure according to claim 1, characterized in that: The cross-sectional shapes of the mold cavity (2) and the tear edge groove (3) are both set to be annular.

5. The anti-error tearing edge groove structure according to claim 1, characterized in that: The cross-sectional shape of the protrusion (4) is set to be a polygon.

6. The anti-error tearing edge groove structure according to claim 1, characterized in that: Both sides of the protrusion (4) are chamfered.

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