Sealing device

Abstract

The utility model relates to a sealing device which comprises a main body, a first sealing piece and a second sealing piece, a sealing cavity is formed in the main body, an opening is formed in one end of the sealing cavity, and the main body is used for being arranged on a part to be sealed in a sleeved mode through the opening. The first sealing piece is arranged at the end, away from the opening, of the sealing cavity and used for sealing a port of the to-be-sealed component. The second sealing piece is arranged on the sealing cavity at an interval relative to the first sealing piece and used for fixing and sealing a component to be sealed. One end of the to-be-sealed component is inserted into the sealing cavity through the opening, the first sealing piece can seal the port of the to-be-sealed component, the second sealing piece can fixedly seal the to-be-sealed component in the sealing cavity, the to-be-sealed component is prevented from falling off, and quick insertion and quick disassembly of the to-be-sealed component are achieved. The first sealing piece and the second sealing piece can achieve double sealing of the part to be sealed, the sealing effect is improved, and the leakage risk is reduced; the sealing device is simple in structure and convenient to produce and machine.

Description

Technical Field

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

[0002] During the test of the water-cooled plate of the battery thermal management system, a sealing device is required to block the water nozzle. The existing sealing device usually includes a two-way quick-insert plug and a solid water nozzle. One end of the two-way quick-insert plug is inserted into the water nozzle, and the other end of the two-way quick-insert plug is inserted into the solid water nozzle to block the water nozzle.

[0003] However, the existing sealing device has a complex structure, and the solid water nozzle is usually machined, which is prone to machining errors, resulting in a risk of leakage of the sealing device and poor sealing effect. Summary of the Utility Model

[0004] Based on this, in view of the above problems, it is necessary to provide a sealing device to improve the sealing effect.

[0005] The utility model provides a sealing device, including: a main body, with a sealing cavity opened inside, one end of the sealing cavity is provided with an opening, and the main body is used to sleeved on the component to be sealed through the opening; a first sealing member, arranged at one end of the sealing cavity far from the opening, and the first sealing member is used to seal the port of the component to be sealed; and a second sealing member, arranged on the sealing cavity at an interval relative to the first sealing member, and the second sealing member is used to fix and seal the component to be sealed.

[0006] In the above sealing device, one end of the component to be sealed is inserted into the sealing cavity through the opening. The first sealing member can seal the port of the component to be sealed, and the second sealing member can fix and seal the component to be sealed in the sealing cavity to prevent the component to be sealed from falling off, so as to realize quick insertion and quick removal of the component to be sealed; moreover, the first sealing member and the second sealing member can achieve double sealing of the component to be sealed, improve the sealing effect and reduce the risk of leakage; the structure of the sealing device is simple, which is convenient for production and processing.

[0007] In one of the embodiments, the first sealing member is arranged on the bottom wall of one end of the sealing cavity far from the opening; and / or, the second sealing member is arranged on the side wall of the sealing cavity, and the second sealing member is used to fit with the outer wall of the component to be sealed.

[0008] With such arrangement, arranging the first sealing member on the bottom wall of the sealing cavity can facilitate the installation of the first sealing member; the second sealing member can increase the friction force between the side wall of the sealing cavity and the outer wall of the component to be sealed, and can prevent the liquid overflowing from the port of the component to be sealed from flowing towards the opening.

[0009] In one embodiment, one end of the first seal facing the opening is configured to extend into the port of the component to be sealed.

[0010] With such an arrangement, the first seal can fit against the inner wall of the port of the component to be sealed, so as to increase the contact area between the first seal and the component to be sealed and enhance the sealing effect.

[0011] In one embodiment, along the depth direction of the sealing cavity, the cross-sectional area of the first seal gradually decreases towards the opening.

[0012] With such an arrangement, the first seal can be adapted to components to be sealed with different port sizes, thus expanding the application range of the sealing device.

[0013] In one embodiment, the first seal is configured as a conical shape or a frustum of a cone shape.

[0014] With such an arrangement, the conical and frustum-of-a-cone structures are simple, which is convenient for the production and processing of the first seal.

[0015] In one embodiment, the first seal is adhesively fixed to the main body.

[0016] With such an arrangement, the connection manner between the first seal and the main body is simple and reliable.

[0017] In one embodiment, the second seal is configured as a sealing ring.

[0018] With such an arrangement, the structure of the sealing ring is simple, which is convenient for processing and assembly.

[0019] In one embodiment, the number of the second seals is multiple, and the multiple second seals are arranged at intervals along the depth direction of the sealing cavity.

[0020] With such an arrangement, the multiple second seals can increase the frictional force between the side wall of the sealing cavity and the outer wall of the component to be sealed, improving the stability and reliability of the component to be sealed in the sealing cavity; the multiple second seals can also achieve multiple seals for the component to be sealed, enhancing the sealing effect.

[0021] In one embodiment, the sealing device further includes a connecting member disposed on the side wall of the sealing cavity, and the connecting member is used for connecting and fixing to the outer wall of the component to be sealed.

[0022] With such an arrangement, the stability and reliability of the component to be sealed in the sealing cavity can be improved.

[0023] In one embodiment, the connecting member is configured as a buckle, and the buckle is used for snap-fitting and fixing to the outer wall of the component to be sealed.

[0024] With such a setting, the buckle and the card slot cooperate, having a relatively high pressure resistance capacity, thereby being able to effectively improve the pressure-bearing capacity of the sealing device to ensure the stability and reliability of the connection between the component to be sealed and the sealing device.

[0025] In one embodiment, along the depth direction of the sealing cavity, the connecting member is closer to the opening relative to the second sealing member.

[0026] With such a setting, along the depth direction of the sealing cavity, first, the port of the component to be sealed is blocked by the first sealing member, then the outer wall of the component to be sealed is attached by the second sealing member to play a role of fixing and sealing, and finally, the buckle and the card slot are snap-fitted and fixed to ensure the stability and reliability of the connection between the two.

[0027] In one embodiment, the sealing cavity includes a first cavity, a second cavity, and a third cavity that are sequentially connected. The opening is provided at one end of the third cavity away from the second cavity. The first sealing member is provided on the bottom wall of the first cavity, the second sealing member is provided on the side wall of the second cavity, and the connecting member is provided on the side wall of the third cavity.

[0028] With such a setting, along the depth direction of the sealing cavity, first, the port of the component to be sealed is blocked by the first sealing member, then the component to be sealed is fixed and sealed by the second sealing member, and finally, the sealing component is fixed by the connecting member.

[0029] In one embodiment, the sealing cavity includes a first cavity, a second cavity, and a third cavity that are sequentially connected. The opening is provided at one end of the third cavity away from the second cavity. The cross-sectional area of the first cavity is smaller than that of the second cavity, and the cross-sectional area of the second cavity is smaller than that of the third cavity.

[0030] With such a setting, the stability of the first sealing member in the first cavity and the stability of the component to be sealed in the second cavity can be ensured, avoiding the shaking of the first sealing member and the component to be sealed in the sealing device, and preventing the buckle from hindering the normal insertion and extraction of the component to be sealed. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0032] Figure 1 It is a three-dimensional structural schematic diagram of a sealing device according to an embodiment of the present invention;

[0033] Figure 2 is Figure 1 a schematic cross-sectional structure diagram of a sealing device;

[0034] Figure 3 is Figure 1 a schematic cross-sectional structure diagram of the cooperation between the sealing device and the component to be sealed.

[0035] Reference numerals: 1, main body; 11, sealing cavity; 111, opening; 112, first cavity; 113, second cavity; 114, third cavity; 2, first seal; 3, second seal; 4, bonding layer; 5, connecting member; 6, component to be sealed; 61, clamping groove. Specific embodiments

[0036] In order to make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the specific embodiments of the present application in detail with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0037] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or there can also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of the present application are only for the purpose of illustration and do not represent the only implementation manner.

[0038] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0039] In this application, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first feature is in direct contact with the second feature, or the first feature is indirectly in contact with the second feature through an intermediate medium. Moreover, the first feature being "above", "over" or "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" or "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0040] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more of the related listed items.

[0041] During the testing process of the water-cooled plate of the battery thermal management system, a sealing device is required to block the water nozzle. The existing sealing devices generally include a two-way quick-insert plug and a solid water nozzle. One end of the two-way quick-insert plug is inserted into the water nozzle, and the solid water nozzle is inserted into the other end of the two-way quick-insert plug to block the water nozzle. However, the existing sealing devices have a complex structure, and the solid water nozzle is usually machined, which is prone to machining errors, resulting in a risk of leakage of the sealing device and poor sealing effect.

[0042] To solve the above problems, as Figures 1 to 3 shown, the present utility model provides a sealing device to improve the sealing effect.

[0043] As Figures 2 to 3 shown, specifically, the sealing device includes a main body 1, a first sealing member 2 and a second sealing member 3, wherein: a sealing cavity 11 is formed inside the main body 1, an opening 111 is provided at one end of the sealing cavity 11, and the main body 1 is used to sleeved on the component to be sealed 6 through the opening 111; the first sealing member 2 is arranged at the end of the sealing cavity 11 far from the opening 111, and the first sealing member 2 is used to seal the port of the component to be sealed 6; the second sealing member 3 is arranged at an interval relative to the first sealing member 2 on the sealing cavity 11, and the second sealing member 3 is used to fix the component to be sealed 6.

[0044] In the sealing device provided by the embodiment of the present utility model, one end of the component 6 to be sealed is inserted into the sealing cavity 11 through the opening 111. The first sealing member 2 can seal the port of the component 6 to be sealed, and the second sealing member 3 can fix and seal the component 6 to be sealed in the sealing cavity 11 to prevent the component 6 to be sealed from falling off, so as to realize quick insertion and quick removal of the component 6 to be sealed. Moreover, the first sealing member 2 and the second sealing member 3 can achieve double sealing of the component 6 to be sealed, improve the sealing effect, and reduce the risk of leakage. The structure of the sealing device is simple, which is convenient for production and processing.

[0045] Among them, the component 6 to be sealed can be a water nozzle, an empty pipe and other structures. Taking the water nozzle arranged on the water-cooled plate as an example of the component 6 to be sealed, one end of the water nozzle far from the water-cooled plate can be inserted into the sealing cavity 11 through the opening 111, and the first sealing member 2 can seal the port of the water nozzle far from the water-cooled plate.

[0046] As Figures 2 to 3 shown, in one embodiment, the first sealing member 2 is arranged on the bottom wall of the sealing cavity 11 at the end far from the opening 111. Among them, the bottom wall of the sealing cavity 11 is opposite to the opening 111, the side wall of the sealing cavity 11 extends along the depth direction D of the sealing cavity 11, and both ends of the side wall of the sealing cavity 11 are respectively connected to the bottom wall and the opening 111 of the sealing cavity 11. Arranging the first sealing member 2 on the bottom wall of the sealing cavity 11 can facilitate the installation of the first sealing member 2. After the component 6 to be sealed is inserted into the sealing cavity 11 through the opening 111, the first sealing member 2 can fit with the edge of the port of the component 6 to be sealed, so as to block the port of the component 6 to be sealed through the first sealing member 2 and prevent the liquid in the component 6 to be sealed from overflowing from the port.

[0047] Of course, in other embodiments, the first sealing member 2 can also be arranged on the side wall of the sealing cavity 11 and located at a position close to the bottom wall of the side wall of the sealing cavity 11. The first sealing member 2 can be arranged in an annular structure. After the component 6 to be sealed is inserted into the sealing cavity 11 through the opening 111, the first sealing member 2 can fit with the edge of the port of the component 6 to be sealed, or fit with the outer wall of the port of the component 6 to be sealed.

[0048] As Figure 3 shown, in one embodiment, one end of the first sealing member 2 facing the opening 111 is used to extend into the port of the component 6 to be sealed. After the component 6 to be sealed is inserted into the sealing cavity 11 through the opening 111, one end of the first sealing member 2 facing the opening 111 can extend into the port of the component 6 to be sealed, so that the first sealing member 2 can also fit with the inner wall of the port of the component 6 to be sealed, so as to increase the contact area between the first sealing member 2 and the component 6 to be sealed, improve the sealing effect of the first sealing member 2 on the port of the component 6 to be sealed, and reduce the risk of liquid leakage from the port of the component 6 to be sealed.

[0049] As Figures 2 to 3As shown, in one embodiment, along the depth direction D of the sealing cavity 11, the cross-sectional area of the first seal 2 gradually decreases towards the opening 111. That is to say, along the depth direction D of the sealing cavity 11, the cross-sectional area of the end of the first seal 2 close to the bottom wall of the sealing cavity 11 is the largest, and the cross-sectional area of the end of the first seal 2 close to the opening 111 is the smallest. In this way, the first seal 2 can be adapted to the components to be sealed 6 with different port sizes, as long as the port cross-sectional area of the component to be sealed 6 is less than or equal to the cross-sectional area of the end of the first seal 2 close to the bottom wall of the sealing cavity 11, thereby expanding the application range of the sealing device. Specifically, the first seal 2 can be arranged in a conical or frustum shape, and the structures of the cone and frustum are simple, which is convenient for the production and processing of the first seal 2. And generally, the port cross-sectional area of the component to be sealed 6 is circular, so that the first seal 2 can be adapted to most of the components to be sealed 6.

[0050] Of course, in other embodiments, when the cross-sectional area of the first seal 2 gradually decreases towards the opening 111, the first seal 2 can also be arranged in other regular or irregular shapes according to the structure of the component to be sealed 6; or, along the depth direction D of the sealing cavity 11, the cross-sectional area of the first seal 2 can also remain unchanged, that is, the first seal 2 can be arranged in a cylindrical shape, such as a cylindrical shape, a triangular prism, a cuboid, etc. The embodiments of the present invention do not make specific limitations here.

[0051] As Figures 2 to 3 As shown, in one embodiment, the first seal 2 is adhesively fixed to the main body 1. The connection method between the first seal 2 and the main body 1 is simple and reliable, which can facilitate the installation of the first seal 2 and also ensure the reliability of the first seal 2 to seal the port of the component to be sealed 6. Specifically, the first seal 2 can be adhesively fixed to the bottom wall of the sealing cavity 11 through the adhesive layer 4 to ensure the contact area between the first seal 2, the adhesive layer 4 and the bottom wall of the sealing cavity 11. Of course, in other embodiments, the first seal 2 can also be fixedly connected to the main body 1 by other methods such as plugging and clamping, as long as the reliability of the connection between the first seal 2 and the main body 1 can be ensured. The embodiments of the present invention do not make specific limitations here.

[0052] As Figures 2 to 3As shown, in one embodiment, the second seal 3 is disposed on the side wall of the sealing cavity 11, and the second seal 3 is used to fit against the outer wall of the component 6 to be sealed. In this way, the second seal 3 can increase the frictional force between the side wall of the sealing cavity 11 and the outer wall of the component 6 to be sealed, thereby fixing the component 6 to be sealed within the sealing cavity 11, and the second seal 3 can also prevent the liquid overflowing from the port of the component 6 to be sealed from flowing towards the opening 111. Of course, in other embodiments, the second seal 3 can also be disposed at the opening 111 of the sealing cavity 11 to simultaneously fix and seal the component 6 to be sealed.

[0053] As Figures 2 to 3 shown, in one embodiment, the second seal 3 is configured as a sealing ring. The structure of the sealing ring is simple, facilitating processing and assembly. Moreover, along the circumferential direction of the component 6 to be sealed, every part of the sealing ring can fit against the outer wall of the component 6 to be sealed, thereby improving the sealing effect of the second seal 3 on the component 6 to be sealed and reducing the risk of liquid leakage from the opening 111 of the sealing cavity 11. Of course, in other embodiments, the second seal 3 can also be configured as a plurality of arc-shaped sealing strips, and the plurality of arc-shaped sealing strips are disposed on the side wall of the sealing cavity 11 along the circumferential direction of the sealing cavity 11.

[0054] As Figures 2 to 3 shown, in one embodiment, the number of the second seals 3 is plural, and the plurality of second seals 3 are arranged at intervals along the depth direction D of the sealing cavity 11. The plurality of second seals 3 can further increase the frictional force between the side wall of the sealing cavity 11 and the outer wall of the component 6 to be sealed, improving the stability and reliability of the component 6 to be sealed within the sealing cavity 11; at the same time, the plurality of second seals 3 can also achieve multiple seals on the component 6 to be sealed, thereby further enhancing the sealing effect. Specifically, the number of the second seals 3 can be two, three, four or more. Of course, on the premise of ensuring the fixing and sealing effects of the second seal 3 on the component 6 to be sealed, the number of the second seals 3 can also be one, and the embodiments of the present invention do not make specific limitations herein.

[0055] In one embodiment, both the first seal 2 and the second seal 3 are rubber parts. Rubber parts have characteristics such as high elasticity and water resistance, with good sealing effects, and are easy to process and form, and have low costs. Of course, in other embodiments, the first seal 2 and the second seal 3 can also be made of other elastic materials such as silicone parts and polytetrafluoroethylene parts, and the embodiments of the present invention do not make specific limitations herein.

[0056] As Figures 1 to 3As shown, in one embodiment, the sealing device further includes a connecting member 5 disposed on the side wall of the sealing cavity 11. The connecting member 5 is used to connect and fix to the outer wall of the component 6 to be sealed. The connecting member 5 is used to fixedly connect the main body 1 and the component 6 to be sealed, so as to improve the stability and reliability of the component 6 to be sealed in the sealing cavity 11.

[0057] As Figure 1 and Figure 3 shown, in one embodiment, the connecting member 5 is set as a buckle, and a clamping groove 61 corresponding to the buckle is provided on the outer wall of the component 6 to be sealed. The buckle is used to be clamped and fixed with the clamping groove 61 on the outer wall of the component 6 to be sealed. The cooperation of the buckle and the clamping groove 61 has a relatively high pressure resistance capacity, so as to effectively improve the pressure-bearing capacity of the sealing device, to ensure the stability and reliability of the connection between the component 6 to be sealed and the sealing device, and thus ensure the sealing effect of the sealing device on the component 6 to be sealed. And when the component 6 to be sealed is inserted into the sealing cavity 11 through the opening 111, the buckle and the clamping groove 61 can be conveniently engaged, and when the component 6 to be sealed is pulled out of the sealing cavity 11, the buckle and the clamping groove 61 can also be conveniently disengaged, so as to realize the quick insertion and quick removal of the component 6 to be sealed. Among them, the number of buckles can be one, two, three or more. Multiple buckles are arranged at intervals along the circumferential direction of the sealing cavity 11 on the side wall of the sealing cavity 11, and the clamping grooves 61 of the component 6 to be sealed are arranged in one-to-one correspondence with the buckles, so as to improve the stability and reliability when the buckle and the clamping groove 61 are engaged.

[0058] Of course, in other embodiments, the connecting member 5 can also be set as a clamping groove, and a buckle corresponding to the clamping groove is provided on the outer wall of the component 6 to be sealed. The buckle on the outer wall of the component 6 to be sealed can be clamped and fixed with the clamping groove 61 on the side wall of the sealing cavity 11.

[0059] As Figures 2 to 3 shown, in one embodiment, along the depth direction D of the sealing cavity 11, the connecting member 5 is closer to the opening 111 relative to the second sealing member 3. When the component 6 to be sealed is inserted into the sealing cavity 11 through the opening 111, along the depth direction D of the sealing cavity 11, first, the port of the component 6 to be sealed is blocked by the first sealing member 2, then the second sealing member 3 is attached to the outer wall of the component 6 to be sealed to play a role of fixing and sealing, and finally, the buckle and the clamping groove 61 are clamped and fixed to ensure the stability and reliability of the connection between the two, so as to ensure the sealing effect of the sealing device on the component 6 to be sealed. Specifically, the sealing cavity 11 includes a first cavity 112, a second cavity 113 and a third cavity 114 that are sequentially communicated. The opening 111 is provided at one end of the third cavity 114 away from the second cavity 113. The first sealing member 2 is provided on the bottom wall of the first cavity 112, the second sealing member 3 is provided on the side wall of the second cavity 113, and the connecting member 5 is provided on the side wall of the third cavity 114.

[0060] Of course, in other embodiments, along the depth direction D of the sealing cavity 11, the second seal 3 may also be closer to the opening 111 relative to the connecting member 5. That is to say, when the sealing cavity 11 includes a first cavity 112, a second cavity 113, and a third cavity 114 that are sequentially connected, and the opening 111 is provided at one end of the third cavity 114 away from the second cavity 113, the first seal 2 is disposed on the bottom wall of the first cavity 112, the connecting member 5 is disposed on the side wall of the second cavity 113, and the second seal 3 is disposed on the side wall of the third cavity 114.

[0061] As Figures 2 to 3 shown, in one embodiment, the sealing cavity 11 includes a first cavity 112, a second cavity 113, and a third cavity 114 that are sequentially connected. The opening 111 is provided at one end of the third cavity 114 away from the second cavity 113. The cross-sectional area of the first cavity 112 is smaller than the cross-sectional area of the second cavity 113, and the cross-sectional area of the second cavity 113 is smaller than the cross-sectional area of the third cavity 114. The cross-sectional area of the second cavity 113 may be equal to or slightly larger than the cross-sectional area of the component 6 to be sealed, so as to ensure the stability of the component 6 to be sealed in the second cavity 113 and prevent the component 6 to be sealed from shaking in the sealing device. Since the inner diameter of the port of the component 6 to be sealed is smaller than the outer diameter of the component 6 to be sealed, the cross-sectional area of the first seal 2 is usually also smaller than the outer diameter of the component 6 to be sealed. Setting the cross-sectional area of the first cavity 112 to be smaller than the cross-sectional area of the second cavity 113 can ensure the stability of the first seal 2 in the first cavity 112 and prevent the first seal 2 from shaking in the sealing device. Since the buckle protrudes from the side wall of the third cavity 114, setting the cross-sectional area of the second cavity 113 to be smaller than the cross-sectional area of the third cavity 114 can prevent the buckle from hindering the normal insertion and extraction of the component 6 to be sealed.

[0062] Of course, in other embodiments, the cross-sectional areas of the first cavity 112, the second cavity 113, and the third cavity 114 may also be equal; the cross-sectional areas of the first cavity 112 and the second cavity 113 are equal, and the cross-sectional area of the second cavity 113 is smaller than the cross-sectional area of the third cavity 114; or, the cross-sectional area of the first cavity 112 is smaller than the cross-sectional area of the second cavity 113, and the cross-sectional areas of the second cavity 113 and the third cavity 114 are equal.

[0063] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0064] The above-described embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all fall within the protection scope of the present application. Therefore, the patent protection scope of the present application shall be subject to the appended claims.

Claims

1. A sealing device, characterized in that, Comprising: A main body (1) with a sealed cavity (11) formed inside. One end of the sealed cavity (11) is provided with an opening (111), and the main body (1) is sleeved on the component to be sealed (6) through the opening (111); A first seal (2) arranged at the end of the sealed cavity (11) away from the opening (111), and the first seal (2) is used to seal the component to be sealed (6); and, A second seal (3) arranged at intervals on the sealed cavity (11), and the second seal (3) is used to fix and seal the component to be sealed (6).

2. The sealing device according to claim 1, wherein The first seal (2) is arranged on the bottom wall at the end of the sealed cavity (11) away from the opening (111); and / or, The second seal (3) is arranged on the side wall of the sealed cavity (11), and the second seal (3) is used to fit against the outer wall of the component to be sealed (6).

3. The sealing device according to claim 1, characterized in that, One end of the first seal (2) facing the opening (111) is used to extend into the port of the component to be sealed (6).

4. The sealing device according to claim 3, characterized in that, Along the depth direction (D) of the sealed cavity (11), the cross-sectional area of the first seal (2) gradually decreases towards the opening (111).

5. The sealing device according to claim 4, characterized in that, The first seal (2) is arranged in a conical or frustum shape.

6. The sealing device according to claim 1, characterized in that, The second seal (3) is arranged as a sealing ring.

7. The sealing device according to claim 1, characterized in that, The number of the second seals (3) is multiple, and the multiple second seals (3) are arranged at intervals along the depth direction (D) of the sealed cavity (11).

8. The sealing device according to any one of claims 1-7, characterized in that, The sealing device further includes a connecting member (5) arranged on the side wall of the sealed cavity (11), and the connecting member (5) is used to connect and fix to the outer wall of the component to be sealed (6).

9. The sealing device according to claim 8, characterized in that, The connecting member (5) is arranged as a buckle, and the buckle is used to be snap-connected and fixed to the outer wall of the component to be sealed (6).

10. The sealing device according to claim 8, characterized in that, Along the depth direction (D) of the sealed cavity (11), the connecting member (5) is closer to the opening (111) than the second seal (3).

11. The sealing device according to claim 8, characterized in that, The sealed cavity (11) includes a first cavity (112), a second cavity (113) and a third cavity (114) that are sequentially communicated. The opening (111) is arranged at one end of the third cavity (114) away from the second cavity (113). The first seal (2) is arranged on the bottom wall of the first cavity (112), the second seal (3) is arranged on the side wall of the second cavity (113), and the connecting member (5) is arranged on the side wall of the third cavity (114).

12. The sealing device according to claim 8, characterized in that, The sealed cavity (11) includes a first cavity (112), a second cavity (113) and a third cavity (114) that are sequentially communicated. The opening (111) is arranged at one end of the third cavity (114) away from the second cavity (113). The cross-sectional area of the first cavity (112) is smaller than that of the second cavity (113), and the cross-sectional area of the second cavity (113) is smaller than that of the third cavity (114).

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