Seal

Abstract

The utility model provides a sealing piece, and relates to the technical field of sealing structures. The sealing piece comprises a main body part and a positioning convex part; extension parts are convexly arranged in the circumferential direction of the main body part at intervals; a concave part is formed between every two adjacent extension parts. And positioning convex parts are respectively arranged on the group of oppositely arranged concave parts. The length of the mounting groove in the first direction is W0, and the depth of the mounting groove in the second direction is H0; after the first part and the second part are assembled, a gap in the second direction is G; the first direction is perpendicular to the second direction. And the minimum length of the main body part in the second direction is H1, and H1 is less than H0 + G. The sealing element is good in sealing performance.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing structures, in particular to a sealing element. Background Art

[0002] Seals are widely used in a variety of equipment and are often considered inexpensive, replaceable "consumables." However, these often overlooked seals are sometimes crucial components for ensuring proper equipment operation and trouble-free production. For example, in an automobile's thermal management system, numerous components are integrated, and the seals between these components become a critical factor affecting system reliability.

[0003] In seal failure cases, a mismatch between cross-sectional dimensions and grooves is a major contributing factor. Therefore, improving seal cross-sectional design to ensure proper fit with the groove and enhance sealing performance has become a pressing technical challenge for those skilled in the art. Utility Model Content

[0004] The purpose of the utility model is to provide a sealing element, which optimizes the cross-sectional design of the sealing element, thereby improving the sealing performance and reducing the risk of sealing failure.

[0005] The utility model provides a sealing member, which is applied between a first part and a second part to seal the gap after the first part and the second part are assembled; a mounting groove for mounting the sealing member is provided on the first part or the second part; the sealing member comprises:

[0006] The main body portion; the extension portion is convexly provided at intervals along the circumference of the main body portion; a recessed portion is formed between adjacent extension portions;

[0007] Positioning protrusions, each of which is provided on a group of oppositely arranged recessed portions;

[0008] The length of the mounting groove in the first direction is W0, and the depth in the second direction is H0; the gap between the first part and the second part in the second direction after assembly is G; wherein the second direction is parallel to the depth direction of the mounting groove, and the first direction and the second direction are perpendicular;

[0009] The minimum length of the main body in the second direction is H1, satisfying H1<H0+G.

[0010] In an optional embodiment, the minimum length of the main body in the first direction is W1, the maximum length of the main body in the second direction is H2, and the length of the positioning protrusion in the second direction is H3;

[0011] If W1>55%W0, then H3≤40%H2;

[0012] If W1≤55%W0, then H3>50%H2.

[0013] In an optional embodiment, the extension part is of a gradually changing cross section, and the cross section is smaller at a position farther away from the main body part.

[0014] In an optional embodiment, the extension part is of a circular arc shape, and the middle line of the extension part is arranged at an angle with the first direction and the second direction respectively.

[0015] In an optional embodiment, the extension part extends from the main body part along the middle line direction by a length R, and 2R>G.

[0016] In an optional embodiment, the main body part has four corner parts, each of which is provided with an extension part; and the positioning convex part is arranged on a group of opposite recessed parts in the first direction.

[0017] In an optional embodiment, (H2-H0-G) / H2=18% to 35%.

[0018] In an optional embodiment, in the first direction, the maximum distance between two positioning convex parts is W3, and W3>W0.

[0019] In an optional embodiment, in the second direction, the maximum distance between the positioning convex part and the extension part is H4, and H4>H0.

[0020] In an optional embodiment, a connecting part and a sealing part are included, the connecting part and the sealing part are connected, the sealing part is used for sealing the gap between the first part and the second part; and the thickness of the connecting part in the first direction is less than or equal to W0.

[0021] The sealing part provided by the utility model has the beneficial effects that:

[0022] The sealing part provided by the utility model has the beneficial effects that: BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 A schematic diagram of the installation scenario structure of the seal provided in an embodiment of the present utility model;

[0025] Figure 2 A schematic structural diagram of a first part and a second part for installing a seal provided in an embodiment of the present utility model;

[0026] Figure 3 A schematic diagram of the cross-sectional structure of a sealing member provided in an embodiment of the present utility model;

[0027] Figure 4 A schematic diagram of a first cross-section of a sealing member provided in an embodiment of the present utility model;

[0028] Figure 5 A schematic diagram of a second cross section of a sealing member provided in an embodiment of the present utility model;

[0029] Figure 6 A schematic diagram of the overall structure of a sealing member provided in an embodiment of the present utility model;

[0030] Figure 7 A schematic diagram of an application structure of a seal provided in an embodiment of the utility model.

[0031] Icons: 100 - sealing member; 110 - main body; 111 - extension portion; 112 - recessed portion; 113 - positioning protrusion; 120 - sealing portion; 130 - connecting portion; 210 - first part; 211 - mounting groove; 220 - second part. DETAILED DESCRIPTION

[0032] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0035] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0036] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0037] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0038] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0039] Please combine Figure 1 and Figure 2The present invention provides a seal 100 for use between a first part 210 and a second part 220. A mounting groove 211 for mounting the seal 100 is provided on either the first part 210 or the second part 220. Once the seal 100 is assembled into the mounting groove 211, it seals the gap between the first and second parts 210, 220. The seal 100 is designed to improve the sealing performance of the connection, reduce the risk of gas or liquid leakage between the first and second parts 210, 220, and enhance the reliability of the seal. In some embodiments, the first and second parts 210, 220 may each be provided with a mounting groove 211 for mounting the seal 100.

[0040] Combine Figures 3 to 5 The seal 100 provided in this embodiment includes a main body 110 and a positioning protrusion 113. A plurality of extensions 111 are provided at circumferential intervals on the main body 110; recesses 112 are formed between adjacent extensions 111. Positioning protrusions 113 are respectively provided on a group of oppositely arranged recesses 112. The length of the mounting groove 211 in the first direction is W0, and the depth in the second direction is H0; the gap between the first part 210 and the second part 220 in the second direction after assembly is G; wherein the second direction is parallel to the depth direction of the mounting groove 211, and the first direction and the second direction are perpendicular. The minimum length of the main body 110 in the second direction is H1, satisfying H1<H0+G.

[0041] In this embodiment, the positioning protrusions 113 are provided on a group of opposite recesses 112 in the first direction, which can provide better positioning, anti-slip and support functions.

[0042] Optionally, the minimum length of the main body 110 in the first direction is W1, the maximum length of the main body 110 in the second direction is H2, and the length of the positioning protrusion 113 in the second direction is H3. If W1>55%W0, then H3≤40%H2; if W1≤55%W0, then H3>50%H2.

[0043] Because the main body 110 is provided with a protruding extension 111, it is the extension 111 that first contacts the wall of the mounting groove 211 during the entire compression process, deforming first and improving sealing performance. Positioning protrusions 113 are provided on a set of opposing recesses 112 in the first direction to prevent the seal 100 from falling out, ensuring a more stable installation and providing support for the seal 100. By defining the dimensions H1, W1, H2, and H3 of the main body 110, it is better matched with the mounting groove 211, improving the sealing performance of the connection structure, making the seal more reliable, and reducing the risk of seal failure.

[0044] It should be noted that when W1>55%W0, the seal 100 is sufficiently strong and will not deform during installation and operation. In this case, the positioning protrusion 113 only serves a positioning function. When W1≤55%W0, the positioning protrusion 113 not only serves a positioning function but also prevents the cross-section of the seal 100 from deforming.

[0045] Due to installation and manufacturing tolerances of the parts themselves, a certain gap G will inevitably be caused between the first part 210 and the second part 220. When H1<H0+G is satisfied, the seal 100 can be prevented from providing excessive reaction force during the sealing process, and the assembly performance is better.

[0046] Optionally, the extension portion 111 has a gradual cross-section, and the further away from the main body portion 110, the smaller the cross-section. Optionally, the extension portion 111 is in the shape of an arc, and the center line of the extension portion 111 forms an angle of approximately 45 degrees with the first direction and the second direction respectively. Of course, the angle between the center line of the extension portion 111 and the first direction can also be set at an angle of 0 to 90 degrees, such as any angle between 10 degrees and 80 degrees, which is not specifically limited here. The extension length of the extension portion 111 from the main body portion 110 along the center line direction is R, 2R>G. In this embodiment, the extension portion 111 is roughly semicircular, and the extension length R is the radius of the arc-shaped extension portion 111. This can prevent the seal 100 from being squeezed out of the gap between the first part 210 and the second part 220.

[0047] Of course, in some other embodiments, the shape of the extension portion 111 may be an ellipse, a quadrilateral, a triangle, a pentagon, a hexagon, a crescent, or any other shape.

[0048] Optionally, the main body 110 has four corners and is generally rectangular. Each corner is provided with an extension 111. To ensure that the extensions 111 first contact the wall and deform during the entire compression process, the side surfaces of the main body 110 between adjacent extensions 111 are recessed inward, forming recesses 112. This arrangement ensures that the seal 100 first contacts the wall of the mounting groove 211 with the extensions 111, causing them to deform under compression, thereby improving sealing performance.

[0049] Optionally, in this embodiment, in order to ensure that the seal 100 can provide sufficient compression during sealing, the size matching relationship between the main body 110 and the mounting groove must meet the following requirements: (H2-H0-G) / H2=18% to 35%. This can improve the sealing performance and reduce the risk of sealing failure. Optionally, the ratio of (H2-H0-G) to H2 is 18%, 19%, 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, 29%, 30%, 31%, 32%, 33%, 34% or 35%, etc., or any value between 18% and 35%.

[0050] Optionally, in the first direction, the maximum distance between the two positioning protrusions 113 is W3, where W3 > W0. In the second direction, the maximum distance between the positioning protrusion 113 and the extension portion 111 is H4, where H4 > H0. This arrangement not only facilitates assembly and reduces difficulty, but also prevents the seal 100 from falling off after assembly, making the structure more stable and reliable, improving sealing performance, and reducing the risk of seal failure.

[0051] Combine Figure 6 、 Figure 7 Optionally, in a seal 100, not all places may be used for sealing. In some application scenarios, the seal 100 includes a connecting portion 130 and a sealing portion 120, and the connecting portion 130 is connected to the sealing portion 120, and the sealing portion 120 is used to seal the gap between the first part 210 and the second part 220; the connecting portion 130 plays a connecting role, such as connecting multiple sealing portions 120. The sealing portion 120 and the connecting portion 130 can be integrally formed. It is easy to understand that the sealing portion 120 needs to include the above-mentioned main body 110 and positioning protrusion 113, and the cross-sectional size parameters of the sealing portion 120 meet the aforementioned limited requirements. Since the connecting portion 130 is not used for sealing, the compression amount of the connecting portion 130 can be reduced, for example, the thickness of the connecting portion 130 in the first direction is less than or equal to W0. The cross-sectional shape of the connecting portion 130 can also be unrestricted and can be flexibly set according to actual needs.

[0052] It is understood that a single seal 100 may include multiple sealing portions 120 and multiple connecting portions 130. The connecting portion 130 is used to connect multiple sealing portions 120 together for easier installation. The cross-sectional shape and thickness of the connecting portion 130 can be designed with a reduced design to reduce production costs and process complexity, thereby improving production efficiency. Furthermore, this design of the connecting portion 130 can reduce the reaction force provided by the seal 100, thereby lowering the structural strength requirements of the accessory.

[0053] It should be noted that Figures 3 to 5 Can be understood as Figure 6Schematic diagram of different cross sections of the sealing portion 120. The positioning protrusions 113 are arranged at intervals in the side wall recesses of the main body 110, and their distribution position, shape and number can be flexibly set according to actual conditions.

[0054] The present invention also provides a sealed connection structure comprising a first part 210, a second part 220, and the seal 100 described in the aforementioned embodiment. The seal 100 is disposed between the first part 210 and the second part 220. The first part 210 is provided with a mounting groove 211, and the seal 100 is mounted in the mounting groove 211 to seal the gap between the first and second parts 210, 220 after assembly. Of course, in some embodiments, the mounting groove 211 may also be provided on the second part 220, or the first and second parts 210, 220 may each have a corresponding mounting groove 211, without specific limitation. This seal can be used in devices such as electronic water valves.

[0055] In summary, the seal 100 provided in the embodiment of the present invention has the following beneficial effects, including:

[0056] The seal 100 provided by the present invention has an extension portion 111 protruding from the main body 110. During the entire compression process, the extension portion 111 first contacts the wall of the installation groove 211 and is deformed first, thereby improving the sealing performance. A positioning protrusion 113 is provided on a group of relatively arranged recessed portions 112 to prevent the seal 100 from falling off and to make the installation more stable. By limiting the dimensions H1, W1, H2 and H3 of the main body 110, it can be better matched with the installation groove 211, thereby improving the sealing performance of the connection structure, making the seal more reliable, and reducing the risk of sealing failure. It has good sealing performance for both positive and negative pressure working conditions. In addition, the design of the connection portion 130 in the seal 100 is weakened according to actual conditions, reducing the compression amount of the connection portion 130, facilitating assembly, reducing process difficulty and cost, and improving operating efficiency.

[0057] The electronic water valve and other equipment adopts the above-mentioned seal 100, which is easy to install, prevents the seal 100 from falling off, has a stable structure, and is conducive to improving the sealing performance, improving the reliability of the sealing connection, and reducing the risk of sealing failure.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made should be included in the scope of protection of the present invention.

Claims

1. A seal, characterized in that: The seal is applied between a first part (210) and a second part (220) to seal the gap after the first part (210) and the second part (220) are assembled; a mounting groove (211) for mounting the seal is provided on the first part (210) and / or the second part (220); the seal comprises: A main body (110); a plurality of extensions (111) are convexly provided at intervals in the circumferential direction of the main body (110); recessed portions (112) are formed between adjacent extensions (111); Positioning convex parts (113), the positioning convex parts (113) are respectively provided on a group of the oppositely arranged concave parts (112); The length of the installation groove (211) in the first direction is W0, and the depth in the second direction is H0; the gap between the first part (210) and the second part (220) in the second direction after assembly is G; wherein the second direction is parallel to the depth direction of the installation groove (211), and the first direction and the second direction are perpendicular; The minimum length of the main body (110) in the second direction is H1, satisfying H1<H0+G.

2. The seal according to claim 1, wherein: The minimum length of the main body (110) in the first direction is W1, the maximum length of the main body (110) in the second direction is H2, and the length of the positioning protrusion (113) in the second direction is H3; If W1>55%W0, then H3≤40%H2; If W1≤55%W0, then H3>50%H2.

3. The seal according to claim 1, wherein: The extension portion (111) has a gradually changing cross-section, and the further away from the main body portion (110) the position is, the smaller the cross-section becomes.

4. The seal according to claim 3, characterized in that The extension portion (111) is in an arc shape, and the center line of the extension portion (111) is arranged at an angle with the first direction and the second direction respectively.

5. The seal according to claim 4, characterized in that The extension length of the extension portion (111) from the main body portion (110) along the centerline direction is R, and 2R>G.

6. The seal according to claim 1, wherein: The main body (110) has four corners, each of which is provided with an extension portion (111); the positioning protrusions (113) are provided on a group of opposite recessed portions (112) in the first direction.

7. The seal according to claim 1, wherein: (H2-H0-G) / H2=18%~35%.

8. The seal according to claim 1, wherein: In the first direction, the maximum distance between the two positioning protrusions (113) is W3, and W3>W0.

9. The seal according to claim 1, wherein: In the second direction, the maximum distance between the positioning protrusion (113) and the extension portion (111) is H4, and H4>H0.

10. The seal according to any one of claims 1 to 9, characterized in that The invention comprises a connecting portion (130) and a sealing portion (120), wherein the connecting portion (130) and the sealing portion (120) are connected, and the sealing portion (120) is used to seal the gap between the first part (210) and the second part (220); and the thickness of the connecting portion (130) in the first direction is less than or equal to W0.

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