A cap assembly

Abstract

The application discloses a cover assembly, which comprises a first body, a second body, an elastic member, a valve seat unit, a check valve and a filter. The second body is detachably installed on the first body and can be elastically deformed. The elastic member is arranged on the first body. The valve seat unit is movable relative to the first body. The valve seat unit comprises a first seat body and a second seat body. The first seat body is detachably connected with the elastic member and connected to a vacuum device. The second seat body is detachably connected with the first seat body. The check valve is installed on the second seat body. The filter is arranged between the second seat body and the second body.

Description

TECHNICAL FIELD

[0001] The present application relates to a sealing product, and more particularly to a cap assembly for a container. BACKGROUND

[0002] There are various sealing products in the market. A sealing cap is one of the sealing products. The sealing cap can be placed on a container, such as a cup, and connected to a vacuum device, such as a vacuum pump, to form a vacuum or negative pressure environment inside the container, so as to prolong the storage time of the objects stored in the container. However, the conventional sealing cap lacks simplicity and intuitiveness in use. Therefore, there is an urgent need to improve the sealing cap. SUMMARY

[0003] The present application aims to provide a cap assembly for a container to solve the above problems.

[0004] To achieve the above-mentioned purpose, the present application discloses a cap assembly. The cap assembly comprises a first body, a second body, an elastic member, a valve seat unit, a check valve and a filter member. The second body is detachably mounted on the first body and can be elastically deformed. The elastic member is arranged on the first body. The valve seat unit is movable relative to the first body. The valve seat unit comprises a first seat body and a second seat body. The first seat body is detachably connected with the elastic member and connected to a vacuum device. The second seat body is detachably connected with the first seat body. The check valve is mounted on the second seat body. The filter member is arranged between the second seat body and the second body.

[0005] According to an embodiment of the present application, the first seat body comprises an engaging member and a connecting member. The engaging member is detachably connected with the elastic member. The connecting member is detachably connected with the engaging member, and the connecting member comprises a connecting portion protruding from the engaging member and connected with the vacuum device.

[0006] According to an embodiment of the present application, the cap assembly further comprises a reset member arranged between the first body and the engaging member and used for resetting the engaging member.

[0007] According to an embodiment of the present application, the first seat body further comprises a magnetic member arranged between the engaging member and the connecting member.

[0008] According to an embodiment of the present application, at least one channel is provided outside the engaging member. The elastic member comprises at least one inner rib, which is in contact with the outside of the engaging member to block the at least one channel, and the elastic member can be elastically deformed so that the at least one inner rib is separated from the outside of the engaging member, thereby not blocking the at least one channel.

[0009] According to an embodiment of the present application, the first body comprises a recess. The recess comprises a base, a first sidewall and a second sidewall. The base is provided with a through hole. The first sidewall is close to the outside of the base and detachably connected with the elastic member. The second sidewall is close to the inside of the base and surrounds the through hole, and the second sidewall cooperates with the valve seat unit.

[0010] According to an embodiment of the present application, the cover assembly further comprises a reset member sleeved on the second sidewall and abutting against the base and the engaging member, and the reset member resets the engaging member.

[0011] According to an embodiment of the present application, the valve seat unit is movable between a first position and a second position. The second sidewall comprises a first stop portion and a second stop portion. When the valve seat unit is in the second position, the first stop portion abuts against the engaging member, and when the valve seat unit is in the first position, the second stop portion abuts against the second base body.

[0012] According to an embodiment of the present application, at least one first guide portion is arranged on the engaging member, and at least one second guide portion is arranged on the second sidewall and cooperates with the at least one first guide portion to prevent the engaging member from rotating.

[0013] According to an embodiment of the present application, the filter member is driven by the second base body, at least a part of the filter member protrudes out of the space defined by the second sidewall, so that the second body is elastically deformed.

[0014] According to an embodiment of the present application, the cover assembly further comprises a sealing member arranged in the space formed by the engaging member, the connecting member and the second base body.

[0015] According to an embodiment of the present application, the cover assembly further comprises a reset member arranged between the first body and the first base body and used for resetting the first base body.

[0016] According to an embodiment of the present application, at least one channel is arranged on the outside of the first base body. The elastic member comprises at least one inner rib which abuts against the outside of the first base body to block the at least one channel, and the elastic member is elastically deformed so that the at least one inner rib is separated from the outside of the first base body, thereby not blocking the at least one channel.

[0017] According to an embodiment of the present application, the first body comprises a recess. The recess comprises a base, a first sidewall and a second sidewall. The base is provided with a through hole. The first sidewall is close to the outside of the base and detachably connected with the elastic member. The second sidewall is close to the inside of the base and surrounds the through hole, and the second sidewall cooperates with the valve seat unit.

[0018] According to an embodiment of the present application, the cover assembly further comprises a reset member sleeved on the second sidewall and abutting against the base and the first seat body, the reset member resets the first seat body.

[0019] According to an embodiment of the present application, the valve seat unit is movable between a first position and a second position. The second sidewall comprises a first stop portion and a second stop portion. When the valve seat unit is in the second position, the first stop portion abuts against the first seat body, and when the valve seat unit is in the first position, the second stop portion abuts against the second seat body.

[0020] According to an embodiment of the present application, the second sidewall is provided with at least one first guide portion, and the first body is provided with at least one second guide portion which cooperates with the at least one first guide portion to prevent the first seat body from rotating.

[0021] According to an embodiment of the present application, the filter member is driven by the second seat body to protrude at least partially out of the first body, so that the second body is elastically deformed.

[0022] According to an embodiment of the present application, the valve seat unit is movable between a first position and a second position. The first body comprises a first stop portion and a second stop portion. When the valve seat unit is in the second position, the first stop portion abuts against the first seat body, and when the valve seat unit is in the first position, the second stop portion abuts against the second seat body. The first seat body is provided with at least one first guide portion, and the first body is provided with at least one second guide portion which cooperates with the at least one first guide portion to prevent the first seat body from rotating.

[0023] According to an embodiment of the present application, the cover assembly further comprises a sealing member arranged in a space formed by the first seat body and the second seat body.

[0024] In summary, the valve seat unit of the present application is movable from a higher position to a lower position, for example, from the first position to the second position, when the pressure inside the container gradually decreases. Moreover, the valve seat assembly of the present application is also movable from a lower position to a higher position, for example, from the second position to the first position, when the pressure inside the container gradually increases. Therefore, the pressure inside the container can be easily estimated by observing the position of the valve seat unit. Furthermore, when the elastic member is elastically deformed to drive at least a portion of the elastic member to separate from at least a portion of the valve seat unit, for example, the inner rib of the elastic member separates from the outside of the engaging member of the first seat body of the valve seat unit, an air passage is formed to allow ambient air to flow into the container. Therefore, the present application is intuitive to use.

[0025] The present application will be better understood by reference to the following detailed description of preferred embodiments taken in conjunction with the accompanying drawings, in which: BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a schematic view of the cap assembly of one embodiment of the present application installed on a container;

[0027] Figure 2 is a schematic view of the cap assembly of one embodiment of the present application from another perspective;

[0028] Figure 3 is a cross-sectional view of the cap assembly of one embodiment of the present application;

[0029] Figure 4 is a partial exploded view of the cap assembly of one embodiment of the present application;

[0030] Figure 5 is a partial exploded view of the cap assembly of one embodiment of the present application from another perspective;

[0031] Figure 6 is an exploded cross-sectional view of the cap assembly of one embodiment of the present application;

[0032] Figure 7 is a cross-sectional view of the cap assembly of one embodiment of the present application in a first state of use;

[0033] Figure 8 is a cross-sectional view of the cap assembly of one embodiment of the present application in a second state of use;

[0034] Figure 9 is a cross-sectional view of the cap assembly of one embodiment of the present application in a third state of use. DETAILED DESCRIPTION

[0035] In the following detailed description of the preferred embodiments, reference is made to the accompanying drawings that form a part hereof, and in which are shown by way of illustration specific embodiments in which the application can be practiced. In this regard, directional terminology, such as "top," "bottom," "front," "back," etc., is used with reference to the orientation of the Figure(s) presented. The components of the application can be positioned in a number of orientations. Thus, the directional terminology is used for purposes of illustration and is in no way limiting. The drawings and description are to be regarded as illustrative in nature, and not as restrictive. Furthermore, the term "connected" is used to mean either a direct or indirect connection between two devices or components. Thus, if a first device is connected to a second device, that connection can be through a direct mechanical connection, or through an indirect mechanical connection via other devices or connections.

[0036] Reference is made to Figures 1 to 3 . Figure 1This is a schematic diagram of the structure of the cover assembly 1 installed on the container 2 in one embodiment of the present invention. Figure 2 This is a structural schematic diagram of the cover assembly 1 from another perspective in one embodiment of the present invention. Figure 3 This is a cross-sectional view of the cover assembly 1 according to one embodiment of the present invention. Figures 1 to 3 As shown, the cover assembly 1 includes a first body 11, a second body 12, an elastic element 13, a valve seat unit 14, a check valve 15, and a filter element 16. The second body 12 is detachably mounted on the first body 11 and is elastically deformable. The elastic element 13 is disposed on the first body 11. The valve seat unit 14 is movable relative to the first body 11. The valve seat unit 14 includes a first seat 141 and a second seat 142. The first seat 141 is detachably connected to the elastic element 13 and is configured to be connected to a vacuum device, such as a vacuum pump (not shown), to extract air from inside the container 2. The second seat 142 is detachably connected to the first seat 141. The check valve 15 is disposed on the second seat 142. The filter element 16 is disposed between the second seat 142 and the second body 12.

[0037] In this embodiment, the second body 12 and the elastic element 13 may be made of silicone rubber. The check valve 15 may be an umbrella valve. The filter element 16 may be a foam assembly. However, the present invention is not limited to this embodiment.

[0038] Specifically, such as Figure 2 and Figure 3 As shown, at least one through hole 121 is formed on the second body 12, and at least one through hole 111 is formed on the first body 11. The check valve 15 allows air to flow from the inside of the container 2 through the at least one through hole 121 and the at least one through hole 111, and prevents ambient air from flowing into the inside of the container 2. The filter element 16 is disposed between the check valve 15 and the at least one through hole 111, and is used to filter particles in the air flowing from the inside of the container 2 through the at least one through hole 121 and the at least one through hole 111, to prevent particles from damaging the check valve 15.

[0039] Please see Figures 3 to 6 . Figure 4 and Figure 5 This is a partial exploded view of the cover assembly 1 in different viewing directions in an embodiment of the present invention. Figure 6 This is an anatomical view of the cover assembly 1 described in an embodiment of the present invention. Figures 3 to 6As shown, the first seat 141 includes a connecting member 1411 and a connecting member 1412. The connecting member 1411 is detachably connected to the elastic member 13. The connecting member 1412 is detachably connected to the connecting member 1411, and the connecting member 1412 is provided with a connecting portion 1412A that protrudes from the connecting member 1411 and connects to the vacuum device.

[0040] like Figures 3 to 6 As shown, in this embodiment, the first base 141 further includes a magnetic element 1413 disposed between the coupling member 1411 and the connecting member 1412, so as to magnetically attract the vacuum device and facilitate the connection between the connecting part 1412A and the vacuum device.

[0041] However, the present invention is not limited to this embodiment. For example, in another embodiment, the magnetic element may be omitted, and the joining member and the connecting member may be integrally formed. Alternatively, in another embodiment, the joining member and the connecting member may be integrally formed, and the magnetic element may be embedded in the integral structure formed by the joining member and the connecting member.

[0042] In addition, such as Figures 3 to 5 As shown, in this embodiment, through the engagement of the external thread of the second seat 142 with the internal thread of the connecting member 1411, the second seat 142 can be rotatably engaged with the first seat 141, or rotatably disengaged from the first seat 141.

[0043] However, the present invention is not limited to this embodiment. For example, in another embodiment, the second seat and the first seat are detachably connected by forming a engagement hook and engagement groove on one of the second seat or the first seat, and on the other of the second seat or the first seat, respectively, or by engaging two magnetic elements installed inside the second seat and the first seat respectively.

[0044] like Figure 3 As shown, in this embodiment, the cover assembly 1 further includes a sealing element 17, which is disposed in the gap formed by the first seat 141 and the second seat 142. Specifically, the sealing element 17 may be disposed in the space formed by the connecting member 1411, the connecting member 1412, and the second seat 142 to prevent air leakage through the gap between the connecting member 1411 and the connecting member 1412 and / or the gap between the connecting member 1411 and the second seat 142.

[0045] However, the present application is not limited to this embodiment. For example, in another embodiment, the seal member can be provided in a gap formed only by the joint member and the second housing. Alternatively, in another embodiment, the seal member can be omitted.

[0046] As shown in Figure 3 , Figure 4 and Figure 6 , the first body 11 includes a groove 112. The groove 112 is provided with a base 1121, a first side wall 1122 and a second side wall 1123. The at least one through hole 111 is provided on the base 1121. The first side wall 1122 is close to the outer side of the base 1121 and is detachably connected with the elastic member 13. The second side wall 1123 is close to the inner side of the base 1121 and surrounds the at least one through hole 111, and the second side wall 1123 cooperates with the valve seat unit 14.

[0047] Further, as shown in Figure 3 , Figure 4 and Figure 6 , in this embodiment, the cover assembly 1 further includes a reset member 18 provided between the first body 11 and the first housing 141 and used for resetting the first housing 141. Specifically, the reset member 18 can be sleeved on the second side wall 1123 and abut against the base 1121 and the joint member 1411.

[0048] However, the present application is not limited to this embodiment. For example, in another embodiment, the first housing can be reset by the elastic force provided by the elastic member, so that the reset member can be omitted.

[0049] As shown in Figure 6 , in this embodiment, the valve seat unit 14 is allowed to move only within a limited range during normal operation. Specifically, the second side wall 1123 is provided with a first stop portion 1123A and a second stop portion 1123B, which respectively abut against the joint member 1411 and the second housing 142 to limit the movement distance of the valve seat unit 14.

[0050] However, the present application is not limited to this embodiment. For example, in another embodiment, the first stop portion and the second stop portion can be omitted.

[0051] Further, as shown in Figures 4 to 6As shown, in order to facilitate the connection between the first seat 141 and the second seat 142 and to ensure the stable movement of the valve seat unit 14, at least one first guide portion 1411B is provided on the connecting member 1411, and at least one second guide portion 1123C is provided on the second side wall 1123 and cooperates with the at least one first guide portion 1411B to prevent the connecting member 1411 from rotating when the valve seat unit 14 moves relative to the first body 11 and when the second seat 142 is connected to the connecting member 1411.

[0052] like Figures 3 to 6 As shown, for easy pressure relief, at least one channel 1411A is provided on the outer side of the connector 1411. The elastic member 13 is provided with at least one inner rib 131, which is connected to the outer side of the connector 1411 to block the at least one channel 1411A, and the elastic member 13 is capable of elastic deformation, such that the at least one inner rib 131 separates from the outer side of the connector 1411 so as not to block the at least one channel 1411A, thereby allowing pressure release.

[0053] The working principle of the cover assembly 1 is explained in detail below: Figure 7 This is a cross-sectional view of the cover assembly 1 in the first use state according to an embodiment of the present invention. Figure 8 This is a cross-sectional view of the cover assembly 1 in the second use state according to an embodiment of the present invention. Figure 9 This is a cross-sectional view of the cover assembly 1 in the third usage state according to an embodiment of the present invention. Before the vacuum device is connected to the connecting part 1412A, or when the vacuum device is not activated to extract air from the interior of the container 2, the internal pressure of the container 2 is substantially equal to the ambient pressure. Therefore, at this time, the cover assembly 1 is in the first usage state, that is, the valve seat unit 14 is driven to the first position P1 by the reset member 18 and / or the elastic member 13, and the second stop part 1123B abuts against the second seat body 142, positioning the valve seat unit 14 in the first position P1. Figure 8 As shown, after the vacuum device is connected to the connection part 1412A and started, air is drawn out from the inside of the container 2 through the first path F1, that is, through the at least one connecting hole 121, the at least one through hole 111, at least one gap between the check valve 15 and the second seat 142, and the connection part 1412A. The internal pressure of the container 2 gradually decreases, and the pressure difference between the internal pressure of the container 2 and the ambient pressure causes the valve seat unit 14 to... Figure 7 The first position P1 shown is moved to Figure 8 The second position P2 is shown, causing the reset member 18 and the elastic member 13 to undergo elastic deformation. When the valve seat unit 14 is located...Figure 8 In the second position P2 shown, the first stop 1123A abuts against the connecting member 1411 to position the valve seat unit 14 in the second position P2, and the filter element 16 undergoes elastic deformation and is pushed by the second seat body 142, causing at least a portion to protrude through the through hole 111 and out of the space formed by the second sidewall 1123, thereby causing the second body 12 to undergo elastic deformation. Therefore, the pressure inside the container 2 can be easily estimated by observing the position of the valve seat unit 14. During the above process, the at least one inner rib 131 remains in contact with the outer edge of the connecting member 1411 to block the at least one channel 1411, thereby facilitating the extraction of air from the inside of the container 2.

[0054] like Figure 9 As shown, when the cover assembly 1 needs to be separated from the container 2, the elastic element 13 can undergo elastic deformation, that is, by external force, the at least one inner rib 131 is separated from the outer side of the connecting member 1411, so as not to block the at least one channel 1411A, thereby allowing ambient air to flow into the container 2 through the second path flow F2. For example, through the at least one channel 1411A, at least one gap for pressure relief is provided between the valve seat unit 14, the second side wall 1123, the at least one through hole 111 and the at least one connecting hole 121. During the above-mentioned pressure relief process, the internal pressure of the container 2 gradually increases until the internal pressure of the container 2 is equal to the ambient pressure, that is, the pressure difference between the internal pressure of the container 2 and the ambient pressure is reduced to almost zero, thereby causing the valve seat unit 14 to be driven by the reset member 18 and / or the elastic element 13 from Figure 8 The second position P2 shown is moved back. Figure 7 The first position P1 is shown, and is positioned at the first position P1 by connecting the second stop 1123B and the second seat 142. For example... Figure 7 As shown, after the valve seat unit 14 moves to the first position P1, the cover assembly 1 can be easily separated from the container 2.

[0055] Compared with the prior art, the valve seat unit of the present application can move from a higher position to a lower position, for example, from the first position to the second position, when the pressure inside the container gradually decreases. Moreover, the valve seat unit of the present application can move from a lower position to a higher position, for example, from the second position to the first position, when the pressure inside the container gradually increases. Therefore, the pressure inside the container can be easily estimated by observing the position of the valve seat unit. Furthermore, when the elastic member is elastically deformed to drive at least a part of the elastic member and at least a part of the valve seat unit to separate from each other, for example, the inner rib of the elastic member and the engaging member periphery of the first seat body of the valve seat unit separate from each other, an air passage is formed to allow ambient air to flow into the container. Therefore, the present application is simple and intuitive.

[0056] It should be noted that, for one of ordinary skill in the art, several modifications and improvements can be made without departing from the spirit of the present application. Therefore, the above-described embodiments only express several implementation manners of the present application, and should not be construed as limiting the scope of protection of the present application.

Claims

1. A cap assembly characterized by: The utility model relates to a vacuum device, comprising: a first body; a second body detachably mounted on the first body and capable of elastic deformation; a resilient member provided on the first body; a valve seat unit capable of moving relative to the first body, the valve seat unit comprising: a first seat body detachably connected with the resilient member and connected to a vacuum device; and a second seat body detachably connected with the first seat body; a check valve provided on the second seat body; and a filter member provided between the second seat body and the second body.

2. The cap assembly of claim 1, wherein: The first seat body comprises an engaging member and a connecting member, the engaging member is detachably connected with the resilient member, the connecting member is detachably connected with the engaging member, and the connecting member is provided with a connecting portion connected with the vacuum device, the connecting portion protrudes outside the engaging member.

3. The cap assembly of claim 2, wherein: Further comprising a reset member provided between the first body and the engaging member and used for resetting the engaging member.

4. The cap assembly of claim 2, wherein: The first seat body further comprises a magnetic member provided between the engaging member and the connecting member.

5. The cap assembly of claim 2, wherein: At least one channel is provided outside the engaging member, the resilient member comprises at least one inner rib, the at least one inner rib is in contact with the outside of the engaging member to block the at least one channel, and the resilient member is capable of elastic deformation, so that the at least one inner rib is separated from the outside of the engaging member, thereby not blocking the at least one channel.

6. The cap assembly of claim 2, wherein: The first body comprises a groove, the groove comprises a base, a first side wall and a second side wall, the base is provided with a through hole, the first side wall is close to the outside of the base and is detachably connected with the resilient member, the second side wall is close to the inside of the base and surrounds the through hole, and the second side wall cooperates with the valve seat unit.

7. The cap assembly of claim 6, wherein: Further comprising a reset member sleeved on the second side wall and abutting against the base and the engaging member, the reset member resets the engaging member.

8. The cap assembly of claim 6, wherein: The valve seat unit is capable of moving between a first position and a second position, the second side wall comprises a first stop portion and a second stop portion, the first stop portion abuts against the engaging member when the valve seat unit is located at the second position, and the second stop portion abuts against the second seat body when the valve seat unit is located at the first position.

9. The cap assembly of claim 6, wherein: At least one first guide portion is provided on the engaging member, and at least one second guide portion is provided on the second side wall, the second guide portion cooperates with the at least one first guide portion to prevent the engaging member from rotating.

10. The cap assembly of claim 6, wherein: The filter member is driven by the second seat body, at least a part of the filter member protrudes out of a space formed by the second side wall, so that the second body is elastically deformed.

11. The cap assembly of claim 2, wherein: Further comprising a sealing member provided in a space formed by the engaging member, the connecting member and the second seat body.

12. The cap assembly of claim 1, wherein: Further comprising a reset member provided between the first body and the first seat body and used for resetting the first seat body.

13. The cap assembly of claim 1, wherein: The first seat body is provided with at least one passage on the outer side thereof, the elastic member comprises at least one inner rib, the at least one inner rib is connected with the outer side of the first seat body to block the at least one passage, and the elastic member can be elastically deformed so that the at least one inner rib is separated from the outer side of the first seat body, thereby not blocking the at least one passage.

14. The cap assembly of claim 1, wherein: The first body comprises a groove, the groove comprises a base, a first side wall and a second side wall, the base is provided with a through hole, the first side wall is close to the outer side of the base and detachably connected with the elastic member, the second side wall is close to the inner side of the base and surrounds the through hole, and the second side wall is matched with the valve seat unit.

15. The cap assembly of claim 14, wherein: Further comprising a reset member sleeved on the second side wall and abutting against the base and the first seat body, the reset member resets the first seat body.

16. The cap assembly of claim 14, wherein: The valve seat unit can move between a first position and a second position, the second side wall comprises a first stop portion and a second stop portion, the first stop portion abuts against the first seat body when the valve seat unit is located at the second position, and the second stop portion abuts against the second seat body when the valve seat unit is located at the first position.

17. The cap assembly of claim 14, wherein: The first seat body is provided with at least one first guide portion, the second body is provided with at least one second guide portion, and the second guide portion is matched with the at least one first guide portion to prevent the first seat body from rotating.

18. The cap assembly of claim 1, wherein: The filter member is driven by the second seat body, at least a part of the filter member protrudes out of the first body, thereby causing the second body to be elastically deformed.

19. The cap assembly of claim 1, wherein: The valve seat unit can move between a first position and a second position, the first body comprises a first stop portion and a second stop portion, the first stop portion abuts against the first seat body when the valve seat unit is located at the second position, and the second stop portion abuts against the second seat body when the valve seat unit is located at the first position, the first seat body is provided with at least one first guide portion, the first body is provided with at least one second guide portion, and the second guide portion is matched with the at least one first guide portion to prevent the first seat body from rotating.

20. The cap assembly of claim 1, wherein: Further comprising a sealing member arranged in a space formed by the first seat body and the second seat body.

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