Sealing assembly and vacuum device

Abstract

The utility model discloses a sealing assembly and a vacuum device, and relates to the technical field of sealing pieces. The sealing assembly comprises a stop protection piece and an annular sealing piece, the stop protection piece comprises a first composition unit and a second composition unit, the first composition unit comprises a first clamping part and a first splicing part, and the second composition unit comprises a second clamping part and a second splicing part; wherein the first clamping part and the second clamping part are connected in a clamping mode, the first splicing part and the second splicing part are in butt joint, so that the first splicing part and the second splicing part jointly form a stopping part used for blocking a pipeline of the vacuum device, the annular sealing piece is arranged on the side, away from the pipeline of the vacuum device, of the stopping part, and the annular sealing piece is arranged around the periphery of the stopping part. According to the sealing assembly and the vacuum device, the problem that in the prior art, an O-shaped ring is prone to deformation and even damage due to the influence of corrosive substances in a pipeline of the vacuum device in the application process can be solved, and therefore the service life of the O-shaped ring is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of seals, and particularly to a sealing assembly and a vacuum device. Background Art

[0002] An O-ring is an annular elastic gasket with a circular cross-section. Due to its low price, simple manufacturing, and simple installation requirements, it has become the most widely used sealing element. The main materials of the O-ring are synthetic rubber or thermoplastic plastic. When it comes into contact with corrosive substances such as acids, alkalis, and plasmas, it is prone to deformation or even damage, and thus cannot provide the required sealing effect. Therefore, when an O-ring is installed in a vacuum device that needs to use corrosive substances such as acids, alkalis, and plasmas, how to reduce the influence of corrosive substances such as acids, alkalis, and plasmas on the O-ring has become an urgent problem to be solved at present. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a sealing assembly and a vacuum device, which can solve the problem that the O-ring in the prior art is prone to deformation or even damage due to the influence of corrosive substances in the pipeline of the vacuum device during application, thereby effectively improving the service life of the O-ring.

[0004] The embodiments of the utility model are implemented as follows:

[0005] In the first aspect of the embodiments of the utility model, a sealing assembly is provided, which includes a stop protection member and an annular seal. The stop protection member includes a first component unit and a second component unit. The first component unit includes a first engaging portion and a first splicing portion, and the second component unit includes a second engaging portion and a second splicing portion. Wherein, the first engaging portion and the second engaging portion are snap-connected, and the first splicing portion and the second splicing portion are butted, so that the first splicing portion and the second splicing portion jointly form a stop portion for blocking the pipeline of the vacuum device. The annular seal is disposed on one side of the stop portion away from the pipeline of the vacuum device, and the annular seal is arranged around the periphery of the stop portion. This sealing assembly can solve the problem that the O-ring in the prior art is prone to deformation or even damage due to the influence of corrosive substances in the pipeline of the vacuum device during application, thereby effectively improving the service life of the O-ring.

[0006] Optionally, the first component unit further includes a first body. The number of the first engaging portions is two, and the two first engaging portions are respectively located at two ends of the first body. The second component unit further includes a second body. The number of the second engaging portions is two, and the two second engaging portions are respectively located at two ends of the second body. The two first engaging portions and the two second engaging portions are snap-connected in a one-to-one correspondence.

[0007] Optionally, the first body and the second body are disposed opposite to each other, and the first splicing portion and the second splicing portion are disposed opposite to or staggered with each other.

[0008] Optionally, the first splicing portion and the second splicing portion are staggered. A first arc-shaped groove is formed on a side of the first body facing the first splicing portion, a first arc-shaped convex surface is formed on a side of the first splicing portion away from the first body, a second arc-shaped groove is formed on a side of the second body facing the second splicing portion, and a second arc-shaped convex surface is formed on a side of the second splicing portion away from the second body. The second arc-shaped convex surface matches the first arc-shaped groove, and the first arc-shaped convex surface matches the second arc-shaped groove.

[0009] Optionally, a limiting portion is provided on at least one of the first body, the first engaging portion, the second body, and the second engaging portion. The limiting portion is used to contact a peripheral edge of the annular seal away from the stop portion.

[0010] Optionally, a connecting portion is provided on at least one of the first body, the first engaging portion, the second body, and the second engaging portion. The connecting portion is used for fixedly connecting with an installation portion of a pipeline of the vacuum device.

[0011] Optionally, the first engaging portion is a convex structure, and the second engaging portion is a concave structure corresponding to the convex structure; or, the first engaging portion is a concave structure, and the second engaging portion is a convex structure corresponding to the convex structure.

[0012] Optionally, the first body, the two first engaging portions, and the first splicing portion are an integrally formed structure; the second body, the two second engaging portions, and the second splicing portion are an integrally formed structure.

[0013] Optionally, the material of the annular seal is synthetic rubber, thermoplastic, or metal material.

[0014] In a second aspect of the embodiments of the present invention, a vacuum device is provided, including the above-mentioned sealing assembly. This sealing assembly can solve the problem that in the prior art, an O-ring is prone to deformation or even damage due to the influence of corrosive substances in the pipeline of the vacuum device during application, thereby effectively improving the service life of the O-ring.

[0015] The beneficial effects of the embodiments of the present invention include:

[0016] The sealing assembly includes a stop protection member and an annular seal. The stop protection member includes a first component unit and a second component unit. The first component unit includes a first engaging portion and a first splicing portion, and the second component unit includes a second engaging portion and a second splicing portion. Among them, the first engaging portion and the second engaging portion are snap-connected, and the first splicing portion and the second splicing portion are butted, so that the first splicing portion and the second splicing portion jointly form a stop portion for blocking the pipeline of the vacuum device. The annular seal is arranged on one side of the stop portion away from the pipeline of the vacuum device and is arranged around the periphery of the stop portion. In this way, through the mutual snap connection between the first engaging portion and the second engaging portion, the first component unit and the second component unit can be fixedly connected. At the same time, through the butt joint between the first splicing portion and the second splicing portion, the first splicing portion and the second splicing portion can jointly form a stop portion for blocking the pipeline of the vacuum device, and the stop portion plays a role in stopping the corrosive substance in the pipeline of the vacuum device from continuing to move toward the side close to the annular seal, thereby preventing the corrosive substance from coming into direct contact with the annular seal, and further protecting the annular seal. Compared with the prior art in which only an O-ring is used to seal the pipeline of the vacuum device, the sealing assembly provided in this application not only protects the annular seal through the stop protection member with a stop portion, thereby preventing the corrosive substance from coming into direct contact with the annular seal, and significantly improving the service life of the annular seal. At the same time, the annular seal is arranged around the periphery of the stop portion, whereby the periphery of the stop portion (essentially the periphery of the pipeline) can be sealed, and therefore, it will not affect the sealing effect of the annular seal on the pipeline of the vacuum device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 is one of the structural schematic diagrams of the sealing assembly provided by the embodiment of the present invention;

[0019] Figure 2 is the second of the structural schematic diagrams of the sealing assembly provided by the embodiment of the present invention;

[0020] Figure 3 is Figure 1 a partial enlarged view of.

[0021] Icon: 100 - Sealing assembly; 10 - Stop protection piece; 11 - First component unit; 111 - First body; 1111 - First arc-shaped groove; 112 - First engaging part; 113 - First splicing part; 1131 - First arc-shaped convex surface; 12 - Second component unit; 121 - Second body; 1211 - Second arc-shaped groove; 122 - Second engaging part; 123 - Second splicing part; 1231 - Second arc-shaped convex surface; 13 - Limiting part; 14 - Connecting part; 20 - Ring-shaped seal. Detailed implementation mode

[0022] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. The components of the embodiments of the present utility model usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the scope of protection of the present utility model.

[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0025] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0026] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0027] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the connection inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] Please refer to Figures 1 to 3 , the embodiment of the present application provides a sealing assembly 100, which includes a stop protection member 10 and an annular seal member 20. The stop protection member 10 includes a first component unit 11 and a second component unit 12. The first component unit 11 includes a first engaging portion 112 and a first splicing portion 113, and the second component unit 12 includes a second engaging portion 122 and a second splicing portion 123. Among them, the first engaging portion 112 and the second engaging portion 122 are snap-connected, and the first splicing portion 113 and the second splicing portion 123 are butted, so that the first splicing portion 113 and the second splicing portion 123 jointly form a stop portion for blocking the pipeline of the vacuum device. The annular seal member 20 is disposed on one side of the stop portion away from the pipeline of the vacuum device, and the annular seal member 20 is arranged around the periphery of the stop portion. The sealing assembly 100 can solve the problem that the O-ring in the prior art is prone to deformation and even damage due to the influence of corrosive substances in the pipeline of the vacuum device during application, thereby effectively improving the service life of the O-ring.

[0029] It should be noted that the sealing assembly 100 includes a stop protection member 10 and an annular seal member 20. In the actual application process, the stop protection member 10 can be first installed and fixed on the pipeline of the vacuum device, and then the annular seal member 20 can be installed and fixed on one side of the stop protection member 10 away from the pipeline of the vacuum device, so as to stop the corrosive substances in the pipeline of the vacuum device from continuing to move towards the side close to the annular seal member 20 through the stop protection member 10, thereby avoiding direct contact between the corrosive substances and the annular seal member 20, and further playing an effective and reliable protection role for the annular seal member 20, and significantly improving the service life of the annular seal member 20.

[0030] Of course, in other embodiments, it is also possible to first complete the assembly and fixation of the stop protection member 10 and the annular seal member 20, and then the sealing assembly 100 formed by the stop protection member 10 and the annular seal member 20 as a whole is fixedly installed on the pipeline of the vacuum device in such a way that the stop protection member 10 is located on the side close to the pipeline of the vacuum device and the annular seal member 20 is located on the side away from the pipeline of the vacuum device. Those skilled in the art should be able to make reasonable selections and designs according to the actual situation, and no specific limitations are made here.

[0031] Specifically, the annular seal 20 can be an annular elastomer made of a known material with certain elasticity. When the annular seal 20 is not subjected to extrusion, its cross-sectional shape is circular. For example, the annular seal 20 can be an O-ring in the prior art. Exemplarily, the material of the annular seal 20 can be synthetic rubber or thermoplastic, so that the annular seal 20 has certain elasticity through synthetic rubber or thermoplastic. Alternatively, the material of the annular seal 20 can also be a metal material, such as carbon steel, alloy steel or stainless steel, etc., so that the annular seal 20 also has certain corrosion resistance through the metal material.

[0032] As Figure 1 and Figure 2 shown, the stop protection member 10 includes a first component unit 11 and a second component unit 12. The first component unit 11 includes a first engaging portion 112 and a first splicing portion 113. The second component unit 12 includes a second engaging portion 122 and a second splicing portion 123. During actual assembly, the first engaging portion 112 and the second engaging portion 122 are snapped together, and the first splicing portion 113 and the second splicing portion 123 are butted against each other, so that the first splicing portion 113 and the second splicing portion 123 jointly form a stop portion for blocking the pipeline of the vacuum device. The annular seal 20 is disposed on one side of the stop portion away from the pipeline of the vacuum device, and the annular seal 20 is arranged around the periphery of the stop portion to play a sealing role.

[0033] In the above process, through the mutual snapping between the first engaging portion 112 and the second engaging portion 122, the first component unit 11 and the second component unit 12 can be fixedly connected. At the same time, through the butting between the first splicing portion 113 and the second splicing portion 123, the first splicing portion 113 and the second splicing portion 123 can jointly form a stop portion for blocking the pipeline of the vacuum device, and the stop portion plays a role in stopping the corrosive substance in the pipeline of the vacuum device from continuing to move towards the side close to the annular seal 20, thereby preventing the corrosive substance from directly contacting the annular seal 20, and further protecting the annular seal 20.

[0034] Compared with only using an O-ring to seal the pipeline of the vacuum device in the prior art, the sealing assembly 100 provided in the present application not only protects the annular seal 20 through the stop protection member 10 with a stop portion, thereby preventing the corrosive substance from directly contacting the annular seal 20, and thus significantly improving the service life of the annular seal 20. At the same time, the annular seal 20 is arranged around the periphery of the stop portion, whereby the periphery of the stop portion (essentially the periphery of the pipeline) can be sealed, and therefore, it will not affect the sealing effect of the annular seal 20 on the pipeline of the vacuum device.

[0035] Optionally, as Figure 1 and Figure 2 shown, the first set of component units 11 further includes a first body 111. The number of the first engaging portions 112 is two, and the two first engaging portions 112 are respectively located at two ends of the first body 111; the second set of component units 12 further includes a second body 121. The number of the second engaging portions 122 is two, and the two second engaging portions 122 are respectively located at two ends of the second body 121. The two first engaging portions 112 and the two second engaging portions 122 are snap-connected in one-to-one correspondence, thereby improving the connection stability and reliability between the first set of component units 11 and the second set of component units 12.

[0036] Optionally, in some embodiments, the first body 111 and the second body 121 are oppositely arranged, and the first splicing portion 113 and the second splicing portion 123 are oppositely arranged. Exemplarily, the cross-sectional shapes of the first body 111 and the second body 121 are both semi-circular arcs, and the cross-sectional shapes of the first splicing portion 113 and the second splicing portion 123 are both small semi-circular arcs. Moreover, the semi-circular arc of the first splicing portion 113 is located within the space formed by the semi-circular arc of the first body 111, so that the cross-sectional shape of the first set of component units 11 formed by the first body 111 and the first splicing portion 113 is a large semi-circular arc. The semi-circular arc of the second splicing portion 123 is located within the space formed by the semi-circular arc of the second body 121, so that the cross-sectional shape of the second set of component units 12 formed by the second body 121 and the second splicing portion 123 is also a large semi-circular arc. The outer edges of the above two large semi-circular arcs are snap-connected and the inner edges are butted.

[0037] Or, in some other embodiments, the first body 111 and the second body 121 are oppositely arranged, and the first splicing portion 113 and the second splicing portion 123 are staggeredly arranged. Exemplarily, as Figure 2 shown, a first arc-shaped groove 1111 is formed on one side of the first body 111 facing the first splicing portion 113, a first arc-shaped convex surface 1131 is formed on one side of the first splicing portion 113 away from the first body 111, a second arc-shaped groove 1211 is formed on one side of the second body 121 facing the second splicing portion 123, and a second arc-shaped convex surface 1231 is formed on one side of the second splicing portion 123 away from the second body 121. The above second arc-shaped convex surface 1231 is matched with the first arc-shaped groove 1111, and the above first arc-shaped convex surface 1131 is matched with the second arc-shaped groove 1211.

[0038] Compared with the solution where the first splicing part 113 and the second splicing part 123 are arranged oppositely, in the above solution where the first splicing part 113 and the second splicing part 123 are arranged staggeredly, the first body 111 has a movement tendency for the second splicing part 123 to move towards the side close to the first body 111, and the second body 121 has a movement tendency for the first splicing part 113 to move towards the side close to the second body 121. In this way, the size of the gap of the docking seam between the first splicing part 113 and the second splicing part 123 can be reduced, thereby improving the stopping effect of the stopping protection part 10.

[0039] Optionally, as Figure 3 shown, a limiting part 13 is arranged on at least one of the first body 111, the first engaging part 112, the second body 121 and the second engaging part 122. The limiting part 13 is used to contact the peripheral edge of the annular seal 20 away from the stopping part, so as to limit the annular seal 20 through the limiting part 13, thereby preventing the annular seal 20 from deforming. Exemplarily, the number of the limiting parts 13 is multiple, and the multiple limiting parts 13 are evenly arranged along the peripheral edge of the annular seal 20 away from the stopping part.

[0040] Optionally, as Figure 3 shown, a connecting part 14 is arranged on at least one of the first body 111, the first engaging part 112, the second body 121 and the second engaging part 122. The connecting part 14 is used for fixedly connecting with the installation part of the pipeline of the vacuum device. Thus, it can be fixedly installed on the installation part through the connecting part 14, so that the stopping protection part 10 is fixedly installed on the pipeline.

[0041] Optionally, as Figure 3 shown, the first engaging part 112 is a convex structure, and the second engaging part 122 is a concave structure corresponding to the convex structure; or, the first engaging part 112 is a concave structure, and the second engaging part 122 is a convex structure corresponding to the convex structure. The shapes of the convex structure and the concave structure in the drawings only serve as a schematic illustration. Regarding the actual shapes of the convex structure and the concave structure, those skilled in the art should be able to make reasonable selections and designs according to the actual situation, and no specific limitations are made here, as long as the first engaging part 112 and the second engaging part 122 can be clamped. Exemplarily, the shape of the convex structure is circular, triangular, hook-shaped or other shapes.

[0042] Optionally, the first body 111, the two first engaging portions 112, and the first splicing portion 113 are integrally formed structures to improve the integrity of the first component unit 11. Similarly, the second body 121, the two second engaging portions 122, and the second splicing portion 123 are integrally formed structures to improve the integrity of the second component unit 12, thereby improving the integrity of the stop protection member 10. Of course, it is also possible that the first body 111 and the two first engaging portions 112 are integrally formed structures, and the first splicing portion 113 is fixedly connected to the first body 111 by other means; the second body 121 and the two second engaging portions 122 are integrally formed structures, and the second splicing portion 123 is fixedly connected to the second body 121 by other means.

[0043] The embodiment of the present application further provides a vacuum device, including the above-mentioned sealing assembly 100. Since the structure and beneficial effects of the sealing assembly 100 have been described in detail in the foregoing embodiments, they will not be repeated here.

[0044] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

[0045] In addition, it should be noted that, in the above specific embodiments, the various specific technical features described can be combined in any suitable manner without conflict. To avoid unnecessary repetition, the present invention will not separately describe various possible combination methods.

Claims

1. A sealing assembly, characterized in that: It includes a stop protection member and an annular seal, the stop protection member includes a first component unit and a second component unit, the first component unit includes a first clamping portion and a first splicing portion, and the second component unit includes a second clamping portion and a second splicing portion; wherein the first clamping portion and the second clamping portion are clamped, and the first splicing portion and the second splicing portion are butted, so that the first splicing portion and the second splicing portion jointly form a stop portion for sealing the pipeline of the vacuum device, the annular seal is arranged on the side of the stop portion away from the pipeline of the vacuum device, and the annular seal is arranged around the periphery of the stop portion.

2. The sealing assembly according to claim 1, characterized in that: The first component unit also includes a first body, the number of the first clamping parts is two, and the two first clamping parts are respectively located at the two ends of the first body; the second component unit also includes a second body, the number of the second clamping parts is two, and the two second clamping parts are respectively located at the two ends of the second body, and the two first clamping parts and the two second clamping parts are clamped in a one-to-one correspondence.

3. The sealing assembly according to claim 2, characterized in that: The first body and the second body are arranged opposite to each other, and the first splicing portion and the second splicing portion are arranged opposite to each other or staggered.

4. The sealing assembly according to claim 3, characterized in that: The first splicing part and the second splicing part are arranged alternately, a first arc-shaped groove is formed on the side of the first body facing the first splicing part, a first arc-shaped convex surface is formed on the side of the first splicing part away from the first body, a second arc-shaped groove is formed on the side of the second body facing the second splicing part, and a second arc-shaped convex surface is formed on the side of the second splicing part away from the second body, the second arc-shaped convex surface matches the first arc-shaped groove, and the first arc-shaped convex surface matches the second arc-shaped groove.

5. The sealing assembly according to claim 2, characterized in that: A limiting portion is provided on at least one of the first body, the first engaging portion, the second body and the second engaging portion, and the limiting portion is used to contact the peripheral edge of the annular seal away from the stopper portion.

6. The sealing assembly according to claim 2, characterized in that: A connecting portion is provided on at least one of the first body, the first clamping portion, the second body and the second clamping portion, and the connecting portion is used to be fixedly connected to the installation portion of the pipeline of the vacuum device.

7. The sealing assembly according to claim 1, characterized in that: The first engaging portion is a convex structure, and the second engaging portion is a concave structure corresponding to the convex structure; or, the first engaging portion is a concave structure, and the second engaging portion is a convex structure corresponding to the convex structure.

8. The sealing assembly according to claim 2, characterized in that: The first body, the two first clamping parts and the first splicing part are an integrally formed structure; the second body, the two second clamping parts and the second splicing part are an integrally formed structure.

9. The sealing assembly according to claim 1, characterized in that: The material of the annular sealing member is synthetic rubber, thermoplastic plastic or metal material.

10. A vacuum device, characterized in that: Comprising a sealing assembly as claimed in any one of claims 1 to 9.

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